CN110718580A - Display module and electronic equipment - Google Patents
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- CN110718580A CN110718580A CN201911141092.4A CN201911141092A CN110718580A CN 110718580 A CN110718580 A CN 110718580A CN 201911141092 A CN201911141092 A CN 201911141092A CN 110718580 A CN110718580 A CN 110718580A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
- H10K59/65—OLEDs integrated with inorganic image sensors
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- H—ELECTRICITY
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- H10K50/00—Organic light-emitting devices
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- H10K50/828—Transparent cathodes, e.g. comprising thin metal layers
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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Abstract
The application relates to a display module and electronic equipment. The display module comprises a pixel layer, a first cathode layer, an anode layer and a second cathode layer, wherein the pixel layer comprises a first pixel unit and a second pixel unit, the first cathode layer is arranged on one side of the pixel layer, and the first cathode layer comprises a first cathode unit and a second cathode unit which are arranged at intervals. The anode layer is arranged on one side of the pixel layer, which is far away from the first cathode layer, and comprises a first anode unit and a second anode unit which are arranged at intervals, and the first anode unit and the second anode unit form a light-transmitting area. The second cathode layer is arranged on one side of the first cathode layer, which is far away from the pixel layer, the second cathode layer covers the pixel layer and the light-transmitting area, and the light transmittance of the second cathode layer is larger than that of the first cathode layer. Ambient light can pass through the second cathode layer and is incident from the light-transmitting area to a side of the anode layer facing away from the pixel layer. The display module can realize high screen occupation ratio of the electronic equipment.
Description
Technical Field
The application relates to the technical field of display screens, in particular to a display module and electronic equipment.
Background
In order to increase the screen occupation ratio of the mobile terminal, a general solution is to form a hole or a groove in the display screen and install the front-facing camera in the hole or the groove. According to the mobile terminal with the structure, the light-tight area needs to be reserved in the circumferential direction of the front camera, and the area of the display screen is sacrificed.
Disclosure of Invention
The embodiment of the application provides a display module assembly and electronic equipment, and the electronic equipment can obtain higher screen occupation ratio.
A display module, comprising:
the pixel layer comprises a first pixel unit and a second pixel unit, and the first pixel unit and the second pixel unit are arranged at intervals;
the first cathode layer is arranged on one side of the pixel layer and comprises a first cathode unit and a second cathode unit which are arranged at intervals, the first cathode unit is connected with the first pixel unit, and the second cathode unit is connected with the second pixel unit;
the anode layer is arranged on one side, away from the first cathode layer, of the pixel layer and comprises a first anode unit and a second anode unit which are arranged at intervals, a light-transmitting area is formed by the first anode unit and the second anode unit, the first anode unit is connected with the first pixel unit, and the second anode unit is connected with the second pixel unit; and
the second cathode layer is arranged on one side of the first cathode layer, which is far away from the pixel layer, the second cathode layer covers the pixel layer and the light-transmitting area, and the light transmittance of the second cathode layer is greater than that of the first cathode layer; ambient light can pass through the second cathode layer and be incident from the light-transmitting region to a side of the anode layer facing away from the pixel layer.
Above-mentioned display module assembly, because the luminousness of second cathode layer is greater than the luminousness of first cathode layer, and the first cathode unit and the second cathode unit interval of first cathode layer set up, ambient light can pass the second cathode layer and incide to the printing opacity district from the interval between first cathode unit and the second cathode unit, and the one side that deviates from the pixel layer of incidenting to the anode layer. The display effect of display module assembly can be guaranteed in the setting of first cathode layer and second cathode layer, can realize high luminousness in the printing opacity district again. The camera module can correspond the setting of printing opacity district and go into light by the printing opacity district, also the camera module can be covered by display module and the camera module does not influence the display area of display module assembly, consequently can realize that electronic equipment's high screen accounts for than.
In one embodiment, the light transmittance of the first cathode layer is 40% -60%, and the light transmittance of the second cathode layer is greater than 80%.
In one embodiment, the first cathode layer is made of MgAg alloy, and the second cathode layer is made of AZO.
In one embodiment, the display module includes a thin film transistor layer disposed on a side of the anode layer facing away from the pixel layer.
In one embodiment, the thin film transistor layer includes an electrical connection line, at least a portion of which is shielded by the anode layer.
In one embodiment, the area of the cross section of the first anode unit is larger than that of the cross section of the first pixel unit, and the area of the cross section of the second anode unit is larger than that of the cross section of the second pixel unit.
In one embodiment, the first anode unit comprises a first region and a second region connected to the first region, the projection of the first region on the second cathode layer is located in the projection of the first cathode unit on the second cathode layer, the projection of the second region on the second cathode layer is located outside the projection of the first cathode unit on the second cathode layer, and at least part of the electrical connection line is shielded by the second region.
In one embodiment, the display module includes a polarizer disposed on a side of the second cathode layer facing away from the pixel layer, and the polarizer covers the pixel layer.
In one embodiment, the display module includes a protective layer disposed on a side of the polarizer facing away from the second cathode layer.
In one embodiment, the display module comprises a first display area and a second display area, the first display area is connected with the second display area, and the light-transmitting area is located in the first display area.
The utility model provides an electronic equipment, includes camera module and above arbitrary embodiment the display module assembly, the display module assembly covers the camera module assembly, the camera module assembly can be followed light transmission zone goes into the light.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of an electronic device in one embodiment;
FIG. 2 is a cross-sectional view of a display module of the electronic device shown in FIG. 1;
FIG. 3 is another cross-sectional view of a display module of the electronic device shown in FIG. 1;
FIG. 4 is a front view of an electronic device in another embodiment;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As used herein, "terminal device" refers to a device capable of receiving and/or transmitting communication signals including, but not limited to, devices connected via any one or more of the following connections:
(1) via wireline connections, such as via Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connections;
(2) via a Wireless interface means such as a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter.
A terminal device arranged to communicate over a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:
(1) satellite or cellular telephones;
(2) personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities;
(3) radiotelephones, pagers, internet/intranet access, Web browsers, notebooks, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;
(4) conventional laptop and/or palmtop receivers;
(5) conventional laptop and/or palmtop radiotelephone transceivers, and the like.
Referring to fig. 1, in an embodiment, an electronic device 10 includes a display module 100 and a housing 200, wherein the display module 100 is mounted to the housing 200. The housing 200 is formed with a mounting cavity for mounting electronic components such as a battery, a circuit board, etc. of the electronic device 10. Electronic equipment 10 still includes camera module 300, and camera module 300 is covered by display module 100, and camera module 300 can be followed the side income light of display module 100 place, also is the function of the executable leading camera of camera module 300, and the user can carry out operations such as auto heterodyne, video conversation through camera module 300. In the embodiment of the present application, the display module 100 is an OLED screen, and the display module 100 can be used for displaying information and providing an interactive interface for a user. Referring also to fig. 2, the display module 100 includes a pixel layer 110, a first cathode layer 120, an anode layer 130, and a second cathode layer 140. The pixel layer 110 includes a first pixel unit 111 and a second pixel unit 113, and the first pixel unit 111 and the second pixel unit 113 are disposed at intervals. In some embodiments, the first pixel unit 111 includes an electron injection layer, an electron transport layer, an organic light emitting layer, a hole transport layer, and a hole injection layer, which are sequentially stacked, the second pixel unit 113 is similar to the first pixel unit 111 in structure, and the second pixel unit 113 includes an electron injection layer, an electron transport layer, an organic light emitting layer, a hole transport layer, and a hole injection layer. The organic light emitting layer of the first pixel unit 111 and the organic light emitting layer of the second pixel unit 113 may be made of the same material or different materials. For example, in some embodiments, the organic light emitting layer of the first pixel unit 111 exhibits red when emitting light, and the organic light emitting layer of the second pixel unit 113 exhibits blue when emitting light. Of course, the pixel layer 110 may further include other pixel units, and the plurality of pixel units of the pixel layer 110 are arranged at intervals and can present three primary colors of red, blue, and green when being powered on, and the three primary colors may be mixed to form a color.
The first cathode layer 120 is disposed on one side of the pixel layer 110, and the first cathode layer 120 includes a first cathode unit 121 and a second cathode unit 123 disposed at an interval, the first cathode unit 121 is connected to the first pixel unit 111, and the second cathode unit 123 is connected to the second pixel unit 113. In embodiments where the pixel layer 110 includes other pixel cells, the first cathode layer 120 may be correspondingly disposed with the other cathode cells for controlling the other pixel cells. The anode layer 130 is disposed on a side of the pixel layer 110 away from the first cathode layer 120, the anode layer 130 includes a first anode unit 131 and a second anode unit 133 that are disposed at an interval, the first anode unit 131 and the second anode unit 133 form a light-transmitting region 101, the first anode unit 131 is connected to the first pixel unit 111, the second anode unit 133 is connected to the second pixel unit 113, and the camera module 300 is disposed corresponding to the light-transmitting region 101 and can enter light from the light-transmitting region 101. The anode layer 130 is made of a metal material and has a low transmittance, for example, the transmittance of the anode layer 130 is below 30%. In embodiments where the pixel layer 110 includes other pixel cells, the anode layer 130 may be configured to correspond to the other pixel cells. In short, in the embodiment where the pixel layer 110 includes more than 3 pixel units, an anode unit and a cathode unit are respectively disposed on two opposite sides of each pixel unit, the anode unit is connected to the hole injection layer, the cathode unit is connected to the electron injection layer, and when the anode unit and the cathode unit are powered on, the pixel units can emit light for display.
The second cathode layer 140 is disposed on a side of the first cathode layer 120 away from the pixel layer 110, the second cathode layer 140 covers the pixel layer 110 and the light transmissive region 101, a light transmittance of the second cathode layer 140 is greater than a light transmittance of the first cathode layer 120, and ambient light can pass through the second cathode layer 140 and be incident from the light transmissive region 101 to a side of the anode layer 130 away from the pixel layer 110. In some embodiments, the light transmittance of the first cathode layer 120 is 40% to 60% and the light transmittance of the second cathode layer 140 is greater than 80%. Further, in the embodiment of the present application, the first cathode layer 120 is made of MgAg alloy and has a light transmittance of about 50%, and the second cathode layer 140 is made of AZO (aluminum-doped zinc oxide) and has a light transmittance of 80% to 90%. After passing through the second cathode layer 140, the ambient light passes through the gap of the first cathode layer 120, and then passes through the light-transmitting region 101 formed by the anode layer 130, i.e., the ambient light can be incident on the side of the anode layer 130 away from the pixel unit. In other embodiments, the material of the second cathode layer 140 may be other materials with better conductivity and relatively higher light transmittance.
In the display module 100, since the light transmittance of the second cathode layer 140 is greater than the light transmittance of the first cathode layer 120, and the first cathode unit 121 and the second cathode unit 123 of the first cathode layer 120 are disposed at an interval, the ambient light can pass through the second cathode layer 140 and be incident into the light-transmitting region 101 from the interval between the first cathode unit 121 and the second cathode unit 123, and be incident on the side of the anode layer 130 away from the pixel layer 110. The first cathode layer 120 and the second cathode layer 140 are disposed to ensure the display effect of the display module 100 and to achieve high transmittance in the light-transmitting region 101. The camera module 300 can be set corresponding to the light-transmitting area 101 and enter light from the light-transmitting area 101, i.e., the camera module 300 can be covered by the display module 100 and the camera module 300 does not affect the display area of the display module 100, so that the high screen occupation ratio of the electronic device 10 can be realized. In the practical application process, the part of the display module 100 covering the camera module 300 can normally display images and can become transparent to obtain higher light transmittance, so that the incident light of the camera module 300 can be used for obtaining higher shooting quality of the camera module 300, and the design of the camera under the screen can be realized to obtain a very high screen occupation ratio. For example, the screen occupation ratio of the electronic device 10 adopting the scheme can be more than 90%.
Further, referring to fig. 2, the display module 100 includes a thin film transistor layer 150, and the thin film transistor layer 150 is disposed on a side of the anode layer 130 away from the pixel layer 110. The thin film transistor layer 150 may be used to lead out the connection wires of the anode layer 130, so as to control the conduction of each anode unit. Specifically, the thin film transistor layer 150 includes electrical connection lines 151 and a thin film (not shown) for supporting the electrical connection lines 151, at least a portion of the electrical connection lines 151 is covered by the anode layer 130, and the electrical connection lines 151 can be connected to a control chip of the display module 100, so as to control each pixel unit of the pixel layer 110 through the control chip, and further control the display of the display module 100. Specifically, taking the display module 100 including the first anode unit 131 and the second anode unit 133 as an example, the area of the cross section of the first anode unit 131 is larger than the area of the cross section of the first pixel unit 111, and the area of the cross section of the second anode unit 133 is larger than the area of the cross section of the second pixel unit 113. By enlarging the area of the first anode unit 131 and the second anode unit 133 and using the characteristic of low light transmittance of the anode layer 130, the first anode unit 131, the second anode unit 133 and other anode units can be used to shield the electrical connection line 151 of the thin film transistor layer 150, so that the light passing through the light-transmitting region 101 does not pass through the region where the electrical connection line 151 is located, thereby preventing the light from being diffracted under the effect of the electrical connection line 151, and further improving the imaging quality of the camera module 300.
Further, taking the first anode unit 131 as an example, the first anode unit 131 includes a first region 131a and a second region 131b connected to the first region 131a, a projection of the first region 131a on the second cathode layer 140 is located in a projection of the first cathode unit 121 on the second cathode layer 140, a projection of the second region 131b on the second cathode layer 140 is located outside a projection of the first pixel unit 111 on the second cathode layer 140, and at least a portion of the electrical connection line 151 is shielded by the second region 131 b. The shading area of the anode layer 130 can be enlarged by the arrangement, the electric connecting line 151 of the thin film transistor layer 150 can be shielded as much as possible under the condition that the area of the light-transmitting area 101 is increased, the light incident to the camera module 300 is prevented from being diffracted while the light-transmitting area is increased, and the imaging quality of the camera module 300 can be improved. The arrangement of the second anode unit 133 is similar to that of the first anode unit 131, and thus, is not described in detail herein.
Further, referring to fig. 3, the display module 100 includes a polarizer 160 disposed on a side of the second cathode layer 140 away from the pixel layer 110, and the polarizer 160 covers the pixel layer 110. Further, the display module 100 includes a protection layer 170, and the protection layer 170 is disposed on a side of the polarizer 160 away from the second cathode layer 140. The material of the protection layer 170 may be glass, or may be organic polymer materials such as plastic, and the protection layer 170 may play a better role in protecting other structures of the display module 100.
Further, referring to fig. 4, in some embodiments, the display module 100 includes a first display area 103 and a second display area 105, the first display area 103 is connected to the second display area 105, and the light-transmitting area 101 is located in the first display area 103. The second display area 105 and the first display area 103 may have different structures. For example, the first cathode layers 120 of the second display regions 105 may be connected into a single piece without providing a light-transmissive region, and the electrical connection lines 151 of the second display regions 105 need not be shielded by the anode layer 130. The first display area 103 may be configured by the first cathode layer 120, the second cathode layer 140, the anode layer 130, and the electrical connection lines 151 in the above embodiments, corresponding to the installation position of the camera module 300. Of course, such an arrangement is not necessary, for example, the electronic device 10 may not need to distinguish the first display area 103 from the second display area 105, and the entire display module 100 may adopt the structure in the above embodiment.
Referring to fig. 5, fig. 5 is a schematic structural diagram of the electronic device 10 provided in the present application. The electronic device 10 may include Radio Frequency (RF) circuitry 501, memory 502 including one or more computer-readable storage media, input unit 503, display unit 504, sensor 505, audio circuitry 506, wireless fidelity (WiFi) module 507, processor 508 including one or more processing cores, and power supply 509. Those skilled in the art will appreciate that the configuration of electronic device 10 shown in FIG. 5 does not constitute a limitation of electronic device 10, and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.
The rf circuit 501 may be used for receiving and transmitting information, or receiving and transmitting signals during a call, and in particular, receives downlink information of a base station and then sends the received downlink information to one or more processors 508 for processing; in addition, data relating to uplink is transmitted to the base station. In general, radio frequency circuit 501 includes, but is not limited to, an antenna, at least one Amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the radio frequency circuit 501 may also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Message Service (SMS), and the like.
The memory 502 may be used to store applications and data. Memory 502 stores applications containing executable code. The application programs may constitute various functional modules. The processor 508 executes various functional applications and data processing by executing application programs stored in the memory 502. The memory 502 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the stored data area may store data (such as audio data, a phonebook, etc.) created according to the use of the electronic device 10, and the like. Further, the memory 502 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 502 may also include a memory controller to provide the processor 508 and the input unit 503 access to the memory 502.
The input unit 503 may be used to receive input numbers, character information, or user characteristic information (such as a fingerprint), and generate a keyboard, mouse, joystick, optical, or trackball signal input related to user setting and function control. In particular, in one particular embodiment, the input unit 503 may include a touch-sensitive surface as well as other input devices. The touch-sensitive surface, also referred to as a touch display screen or a touch pad, may collect touch operations by a user (e.g., operations by a user on or near the touch-sensitive surface using a finger, a stylus, or any other suitable object or attachment) thereon or nearby, and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 508, and can receive and execute commands sent by the processor 508.
The display unit 504 may be used to display information input by or provided to the user as well as various graphical user interfaces of the electronic device 10, which may be made up of graphics, text, icons, video, and any combination thereof. The display unit 504 may include a display panel. Alternatively, the display panel may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch-sensitive surface may overlay the display panel, and when a touch operation is detected on or near the touch-sensitive surface, the touch operation is transmitted to the processor 508 to determine the type of touch event, and then the processor 508 provides a corresponding visual output on the display panel according to the type of touch event. Although in FIG. 5 the touch-sensitive surface and the display panel are two separate components to implement input and output functions, in some embodiments the touch-sensitive surface may be integrated with the display panel to implement input and output functions.
The electronic device 10 may also include at least one sensor 505, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel based on the intensity of ambient light, and a proximity sensor that turns off the display panel and/or backlight when the electronic device 10 is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when the mobile phone is stationary, and can be used for applications of recognizing the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which may be further configured to the electronic device 10, detailed descriptions thereof are omitted.
The audio circuitry 506 may provide an audio interface between the user and the electronic device 10 through a speaker, microphone. The audio circuit 506 can convert the received audio data into an electrical signal, transmit the electrical signal to a speaker, and convert the electrical signal into a sound signal to output; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit 506 and converted into audio data, which is then processed by the audio data output processor 508 and then sent to, for example, another electronic device 10 via the rf circuit 501, or output to the memory 502 for further processing. The audio circuitry 506 may also include an earphone jack to provide communication of a peripheral earphone with the electronic device 10.
Wireless fidelity (WiFi) belongs to short-range wireless transmission technology, and the electronic device 10 can help the user send and receive e-mail, browse web pages, access streaming media and the like through the wireless fidelity module 507, and provides wireless broadband internet access for the user. Although fig. 5 shows the wireless fidelity module 507, it is understood that it does not belong to the essential constitution of the electronic device 10, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 508 is a control center of the electronic device 10, connects various parts of the whole electronic device 10 by various interfaces and lines, performs various functions of the electronic device 10 and processes data by running or executing an application program stored in the memory 502 and calling up the data stored in the memory 502, thereby performing overall monitoring of the electronic device 10. Optionally, processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor, which primarily handles operating systems, user interfaces, application programs, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 508.
The electronic device 10 also includes a power supply 509 to power the various components. Preferably, the power supply 509 may be logically connected to the processor 508 through a power management system, so that the power management system may manage charging, discharging, and power consumption. The power supply 509 may also include any component such as one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
Although not shown in fig. 5, the electronic device 10 may further include a bluetooth module or the like, which is not described in detail herein. In specific implementation, the above modules may be implemented as independent entities, or may be combined arbitrarily to be implemented as the same or several entities, and specific implementation of the above modules may refer to the foregoing method embodiments, which are not described herein again.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A display module, comprising:
the pixel layer comprises a first pixel unit and a second pixel unit, and the first pixel unit and the second pixel unit are arranged at intervals;
the first cathode layer is arranged on one side of the pixel layer and comprises a first cathode unit and a second cathode unit which are arranged at intervals, the first cathode unit is connected with the first pixel unit, and the second cathode unit is connected with the second pixel unit;
the anode layer is arranged on one side, away from the first cathode layer, of the pixel layer and comprises a first anode unit and a second anode unit which are arranged at intervals, a light-transmitting area is formed by the first anode unit and the second anode unit, the first anode unit is connected with the first pixel unit, and the second anode unit is connected with the second pixel unit; and
the second cathode layer is arranged on one side of the first cathode layer, which is far away from the pixel layer, the second cathode layer covers the pixel layer and the light-transmitting area, and the light transmittance of the second cathode layer is greater than that of the first cathode layer; ambient light can pass through the second cathode layer and be incident from the light-transmitting region to a side of the anode layer facing away from the pixel layer.
2. The display module of claim 1, wherein the light transmittance of the first cathode layer is 40% -60%, and the light transmittance of the second cathode layer is greater than 80%.
3. The display module of claim 2, wherein the first cathode layer is made of MgAg alloy, and the second cathode layer is made of AZO.
4. The display module of claim 1, wherein the display module comprises a thin film transistor layer disposed on a side of the anode layer facing away from the pixel layer.
5. The display module of claim 4, wherein the thin film transistor layer comprises electrical connection lines, at least a portion of the electrical connection lines being obscured by the anode layer.
6. The display module of claim 5, wherein the cross-sectional area of the first anode unit is larger than the cross-sectional area of the first pixel unit, and the cross-sectional area of the second anode unit is larger than the cross-sectional area of the second pixel unit.
7. The display module according to claim 5, wherein the first anode unit comprises a first region and a second region connected to the first region, the projection of the first region on the second cathode layer is located within the projection of the first cathode unit on the second cathode layer, the projection of the second region on the second cathode layer is located outside the projection of the first cathode unit on the second cathode layer, and at least a part of the electrical connection line is shielded by the second region.
8. The display module according to any one of claims 1 to 7, wherein the display module comprises a polarizer disposed on a side of the second cathode layer facing away from the pixel layer, the polarizer covering the pixel layer.
9. The display module of claim 8, wherein the display module comprises a protective layer disposed on a side of the polarizer facing away from the second cathode layer.
10. The display module according to any one of claims 1-7, wherein the display module comprises a first display area and a second display area, the first display area is connected to the second display area, and the transparent area is located in the first display area.
11. An electronic device comprising a camera module and the display module of any one of claims 1-10, wherein the display module covers the camera module, and the camera module can enter light from the light-transmissive region.
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