CN108877573B - Patterned light emitting panel, light emitting device, vehicle lamp and motor vehicle - Google Patents
Patterned light emitting panel, light emitting device, vehicle lamp and motor vehicle Download PDFInfo
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- CN108877573B CN108877573B CN201710318363.3A CN201710318363A CN108877573B CN 108877573 B CN108877573 B CN 108877573B CN 201710318363 A CN201710318363 A CN 201710318363A CN 108877573 B CN108877573 B CN 108877573B
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- 239000000758 substrate Substances 0.000 claims abstract description 41
- 239000011241 protective layer Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims description 58
- 239000002023 wood Substances 0.000 claims description 6
- 230000005684 electric field Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
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- 239000000126 substance Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
- G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
- G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
- G09F2013/225—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with electroluminescent lamps
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
- G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
- G09F2013/227—Electroluminescent displays for vehicles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Embodiments of the present invention provide a patterned light emitting panel, a light emitting device, a vehicle lamp, and a motor vehicle. The patterned light emitting panel includes: a substrate; a patterned electroluminescent layer disposed on one side of the substrate; an at least partially transparent protective layer disposed on a side of the electroluminescent layer opposite the substrate; and a first electrode and a second electrode electrically connected to the electroluminescent layer. This can reduce the thickness of the light emitting panel and simplify the manufacturing process of the light emitting panel.
Description
Technical Field
The present invention relates to a patterned light-emitting panel, a light-emitting device, a vehicle lamp and a motor vehicle.
Background
The light emitting device is the basis of various lamps for illumination and signal indication. In the prior art, the light emitting devices are basically based on incandescent bulbs, fluorescent bulbs, light emitting diodes and other light sources. Because incandescent bulbs and fluorescent bulbs themselves are relatively bulky and leds require relatively bulky light guides for use, these conventional light emitting devices tend to be relatively bulky. And these conventional light emitting devices occupy a large space in consideration of heat dissipation and the like.
In addition, in many applications, it is desirable that many patterns be capable of being illuminated for display, such as company or automobile logos, and the like. In existing designs, these patterns are mostly illuminated by means of reflected light or by absorbing ambient light. And if the independent light source is used for illuminating the pattern, the pattern occupies too much space, a large amount of heat is generated, and the luminous efficiency is reduced.
Disclosure of Invention
The invention aims to provide a patterned light-emitting panel which can be patterned by utilizing an electroluminescent material layer to realize a light and thin patterned structure.
The invention also aims to provide a light emitting device, a car lamp and a motor vehicle comprising the patterned light emitting panel.
Embodiments of the present invention provide a patterned light emitting panel, including:
a substrate;
a patterned electroluminescent layer disposed on one side of the substrate;
an at least partially transparent protective layer disposed on a side of the electroluminescent layer opposite the substrate; and
And a first electrode and a second electrode electrically connected to the electroluminescent layer.
In an embodiment, the electroluminescent layer comprises a first electroluminescent material region and a second electroluminescent material region separated from each other along a direction parallel to the substrate, wherein the first electroluminescent material region is electrically connected to the first electrode and the second electroluminescent material region is electrically connected to the second electrode.
In an embodiment, the first electroluminescent material region is arranged around the second electroluminescent material region.
In an embodiment the first electrode and the second electrode are arranged on the same side of said electroluminescent layer.
In an embodiment, a first electrode and a second electrode are arranged between the substrate and the electroluminescent layer.
In one embodiment, the electroluminescent layer is formed directly on the substrate.
In an embodiment, the protective layer includes a color filtering region.
In an embodiment, the protective layer comprises a first color filter area allowing only light of the first wavelength range to pass through and a second color filter area allowing only light of the second wavelength range to pass through.
In an embodiment, the patterned light-emitting panel further comprises a light-shielding layer disposed on a side of the protective layer opposite the electroluminescent layer, the light-shielding layer being opaque or partially transparent.
In an embodiment, the patterned light emitting panel further includes a light shielding layer substrate disposed on a side of the protective layer opposite to the electroluminescent layer, the light shielding layer being formed on a side of the light shielding layer substrate facing the protective layer.
In an embodiment, the light shielding layer shields a portion of the electroluminescent layer.
In one embodiment, the outer surface of the light shielding layer is formed with wood grains or metal grains.
In one embodiment, the total thickness of the light emitting panel is less than 1mm.
In one embodiment, the total thickness of the light emitting panel is less than 0.3mm.
In one embodiment, the electroluminescent layer has a thickness of less than 0.1mm.
The embodiment of the invention also provides a light emitting device, including:
the patterned light-emitting panel according to any of the above embodiments; and
And an alternating current driving unit having an alternating current voltage source, a first connection terminal electrically connected to the first electrode, and a second connection terminal electrically connected to the second electrode, the first and second connection terminals configured to apply an alternating current voltage generated by the alternating current voltage source between the first and second electrodes to drive the electroluminescent layer to emit light.
The embodiment of the invention also provides a car lamp, which comprises the patterned light-emitting panel or the light-emitting device.
Embodiments of the present invention also provide a motor vehicle comprising a patterned light-emitting panel as described in any of the embodiments above or a light-emitting device as described in any of the embodiments above or a vehicle lamp as described in any of the embodiments above.
The patterned light emitting panel according to the embodiment of the present invention may generate a patterned light beam using the electroluminescent layer formed with the pattern. This can reduce the thickness of the light-emitting panel and simplify the manufacturing process of the light-emitting panel, and is easy to manufacture integrally with other components.
Drawings
Fig. 1 schematically illustrates a cross-sectional view of a patterned light-emitting panel according to an embodiment of the invention;
fig. 2 schematically illustrates a cross-sectional view of a patterned light-emitting panel according to another embodiment of the invention;
fig. 2a schematically shows a cross-sectional view of a patterned light-emitting panel according to another embodiment of the invention;
FIG. 3 schematically illustrates a bottom view of a patterned light-emitting panel according to an embodiment of the invention;
fig. 4 schematically illustrates a light emitting device according to an embodiment of the present invention;
FIG. 5 schematically illustrates an exemplary display pattern of a patterned light-emitting panel according to an embodiment of the invention;
FIG. 6 schematically illustrates another exemplary display pattern of a patterned light-emitting panel according to an embodiment of the invention; and
Fig. 7 schematically illustrates yet another exemplary display pattern of a patterned light-emitting panel according to an embodiment of the invention.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of embodiments of the present invention with reference to the accompanying drawings is intended to illustrate the general inventive concept and should not be taken as limiting the invention.
According to the present general inventive concept, there is provided a patterned light emitting panel including: a substrate; a patterned electroluminescent layer disposed on one side of the substrate; an at least partially transparent protective layer disposed on a side of the electroluminescent layer opposite the substrate; and a first electrode and a second electrode electrically connected to the electroluminescent layer.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details.
Fig. 1 schematically illustrates a cross-sectional view of a patterned light-emitting panel according to an embodiment of the invention. The patterned light emitting panel 100 includes: the substrate 10, the electroluminescent layer 20, the protective layer 30, and the first electrode 41 and the second electrode 42 electrically connected to the electroluminescent layer 20. The electroluminescent layer 20 is disposed on one side of the substrate 10 and is patterned. The protective layer 30 is arranged on the side of the electroluminescent layer 20 opposite to the substrate 10. The protective layer 30 is at least partially transparent to allow light emitted by the electroluminescent layer 20 under voltage drive to be at least partially emitted through the protective layer 30.
The electroluminescent layer 20 is made of an electroluminescent material. The electroluminescent material described herein comprises a fluorescent substance, which can be induced to emit light by an alternating electric field generated by applying an alternating voltage across electrodes on both ends thereof to cause a transition, change, recombination of electron energy levels of the fluorescent substance within the electroluminescent material. The electroluminescent material layer 20 may be driven by an alternating voltage applied to the first electrode 41 and the second electrode 42 electrically connected thereto. The ac voltage may be, for example, between 20V and 240V, such as 70V to 90V; the operating frequency of the alternating voltage may be, for example, between 50Hz and 4000Hz, such as around 2000 Hz. The electroluminescent material may be, for example, any known electroluminescent material that can be used for ac voltage driving, such as inorganic electroluminescent materials or organic electroluminescent materials, e.g. phosphors, zinc sulphide, aluminium oxide, etc. The color of the light emitted by the electroluminescent layer 20 under alternating current drive may depend on the composition of the electroluminescent material comprised by the electroluminescent layer 20.
In the above-described embodiment of the present invention, the patterned light-emitting panel can emit a light beam capable of forming a pattern only by the electroluminescent material layer 20 disposed between the substrate 10 and the protective layer 30. And the electroluminescent material layer 20 itself forms a pattern (e.g. letters, graphics, numbers, text, etc.), or it forms a patterned layer. With this structure, the thickness of the light-emitting panel can be significantly reduced. This can improve the efficiency of use of the luminescent material and save material. The use of a patterned electroluminescent material layer 20 helps to reduce the thickness of the electroluminescent material layer 20 compared to an overall laying of the electroluminescent material layer 20.
As an example, the electroluminescent layer 20 may comprise a first electroluminescent material region 21 and a second electroluminescent material region 22 separated from each other, wherein the first electroluminescent material region 21 is electrically connected to the first electrode 41 and the second electroluminescent material region 22 is electrically connected to the second electrode 42. As shown in fig. 1 to 3, the first electroluminescent material region 21 and the second electroluminescent material region 22 are separated from each other in a direction parallel to the substrate, and thus, when an alternating voltage is applied between the first electrode 41 and the second electrode 42, an alternating electric field is generated between the first electroluminescent material region 21 and the second electroluminescent material region 22, thereby causing the fluorescent material in the electroluminescent material to undergo transition, change and recombination of electronic energy levels to emit light, and in this way, the stability of light emission and the light emission efficiency of the light emitting panel can be improved.
In an example, as shown in fig. 3, the first electroluminescent material region 21 may be arranged around the second electroluminescent material region 22. In the specific example shown in fig. 3, the second electroluminescent material region 22 is shown as L-shaped and the first electroluminescent material region 21 is shown as a shape approaching an open circular ring. In this way, an alternating electric field can be formed radially outward from the center (first electroluminescent material region 21) to make the luminescent efficiency of the electroluminescent material layer 20 higher and the outgoing light brighter.
As an example, as shown in fig. 1, the first electrode 41 and the second electrode 42 may be disposed on the same side of the electroluminescent layer 20, for example, the side facing the substrate 10. This arrangement of the electrodes can simplify the manufacturing process of the electrodes compared to the arrangement of two electrodes on both sides of the electroluminescent layer 20, respectively. In particular, when the first electrode 41 and the second electrode 42 are connected to the first electroluminescent material region 21 and the second electroluminescent material region 22, respectively, which are separated from each other in a direction parallel to the substrate, it is particularly advantageous that the first electrode 41 and the second electrode 42 are disposed on the same side of the electroluminescent layer 20, which does not affect the light emitting effect of the electroluminescent layer 20 while simplifying the manufacturing process of the electrodes. As an example, the first electrode 41 and the second electrode 42 may be disposed between the substrate 10 and the electroluminescent layer 20. In this case, the influence of the first electrode 41 and the second electrode 42 on the light emission of the light emitting panel can be avoided.
As an example, the electroluminescent layer 20 may be formed directly on the substrate 10, for example, may be formed on the substrate 10 by sputtering, coating, or the like. This means that no further functional layer is present between the electroluminescent layer 20 and the substrate 10, which may advantageously reduce the overall thickness of the light-emitting panel.
In one example, the protective layer 30 may include color filtering regions. The color filter region is a region in which the color of light passing through the region is filtered to form light of a specific color. The color filter areas may form pattern areas of different colors. As an example, as shown in fig. 1 and 2, the protective layer 30 includes a first color filter region 31 allowing only light of a first wavelength range to pass therethrough and a second color filter region 32 allowing only light of a second wavelength range to pass therethrough. For example, the light in the first wavelength range is green light and the light in the second wavelength range is blue light. This may be patterned with different colors. The light of the first wavelength range and the light of the second wavelength range in the embodiment of the present invention are not limited to green light and blue light, but may be light of any wavelength range. The protective layer 30 in embodiments of the present invention may include any number of color filtering regions, such as one, two, three, four, or more.
In an example, as shown in fig. 2 and 2a, the patterned light-emitting panel 100', 100″ according to the present invention may further include a light shielding layer 50 disposed on the opposite side of the protective layer 30 from the electroluminescent layer 20. The light blocking layer 50 may be opaque or partially transparent. The light blocking layer 50 may be used to block or cut off some or all of the emitted light in the electroluminescent layer 20 to achieve a desired light extraction effect. As an example, the light shielding layer 50 may shield a portion of the electroluminescent layer 20. And a light-passing port 51 that allows light of the electroluminescent layer 20 to exit may be provided in the light-shielding layer 50. For example, as shown in fig. 2, the light shielding layer 50 shields the first electroluminescent material region 21 in the electroluminescent layer 20, and only the light emitted from the second electroluminescent material region 22 can be emitted through the light-transmitting port 51. In this case, the light shielding layer 50 may be regarded as another patterned layer. The light having the pattern formed by the electroluminescent layer 20 may be patterned again when passing through the light-shielding layer 50. Thus, the pattern carried by the light emitted from the patterned light-emitting panel 100', 100″ may be formed by the combination of the electroluminescent layer 20 and the light-shielding layer 50. As an example, the light shielding layer 50 may pattern light by binarizing the light intensity using a portion that is completely opaque, or gray-scale processing the light intensity using a portion that is partially opaque.
The light shielding layer 50 may be fabricated in a variety of ways. In an example, the light shielding layer 50 may be implemented using a two-shot molding, for example, in the example shown in fig. 2, a portion of the light shielding layer 50 that is hatched to block the electroluminescent layer 20 may be molded in a dark color, and the light-passing opening 51 may be molded in a light color to allow light to pass through. In another example, the light shielding layer 50 may also be formed (e.g., by printing or spraying, etc.) on the light shielding layer substrate 53. As shown in fig. 2a, a light shielding layer substrate 53 is provided on the side of the protective layer 30 opposite to the electroluminescent layer 20, and the light shielding layer 50 is formed on the side of the light shielding layer substrate 53 facing the protective layer 20. The light shielding layer 50 formed on the light shielding layer substrate 53 may be manufactured by a molding method such as In-Mold transfer (or In-Mold Decoration technique).
As an example, the light shielding layer 50 may be directly molded on the protective layer 30, or may be formed by bonding the light shielding layer substrate 53 to the protective layer 30 after being formed on the light shielding layer substrate 53, for example.
In an example, the outer surface of the light shielding layer 50 may be formed with wood grain or metal grain, and the decorative effect may be enhanced. It should be noted that the wood grain or the metal grain does not necessarily mean that it is made of wood or a metal material, but rather that its appearance is the same as or similar to that of wood or a metal material. The outer surface of the light shielding layer 50 may also be formed into an external shape such as chrome plating or aluminum plating, as desired. As an example, the light shielding layer 50 may extend beyond the protective layer 30 or be substantially flush with the protective layer 30.
In the embodiment of the present invention, the electroluminescent layer 20 may include phosphor or white phosphor, but the embodiment of the present invention is not limited thereto. As an example, any one of the protective layer 30 and the substrate 10 may be made of a resin, plastic, or the like, for example, made of polycarbonate or polymethyl methacrylate, but embodiments of the present invention are not limited thereto. As an example, the light shielding layer 50 may be made of opaque or partially transparent glass, resin, plastic, or the like, for example, made of polycarbonate or polymethyl methacrylate, or formed of ink, for example, but the embodiment of the present invention is not limited thereto.
In an embodiment of the present invention, the total thickness of the patterned light emitting panel 100, 100' may be less than 1mm, for example, may be less than 0.3mm. In an example, the electroluminescent layer may have a thickness of less than 0.1mm, for example less than 0.05mm. In one example, neither the light shielding layer 50 nor the protective layer 30 exceeds 0.1mm, e.g., less than 0.05mm.
In embodiments of the present invention, the patterned light emitting panel 100, 100' may have any suitable size, such as 100mm x 100mm, 300mm x 300mm, 500mm x 500mm, and so forth.
The embodiment of the invention also provides a light emitting device 200. As shown in fig. 4, the light emitting device 200 includes: the patterned light-emitting panel 100, 100' according to any of the embodiments described above; and an ac driving unit 60. The ac driving unit 60 may have an ac voltage source 63, a first connection terminal 61 electrically connected to the first electrode 41, and a second connection terminal 62 electrically connected to the second electrode 42, the first and second connection terminals 61 and 62 being configured to apply an ac voltage generated by the ac voltage source 63 between the first and second electrodes 41 and 42 to drive the electroluminescent layer 20 to emit light. As an example, the ac voltage source 63 may also be implemented by a combination of a dc voltage source and an inverter. Wherein the inverter can convert the direct voltage output by the direct voltage source into alternating voltage.
The patterned light emitting panel 100, 100', 100″ according to the embodiment of the present invention is easily integrally injection-molded with other components, for example, the substrate 10 of the patterned light emitting panel 100, 100', 100″ may be injection-molded with components such as an instrument panel, a base body of a vehicle lamp, etc., to save a design space.
Fig. 5 to 7 schematically illustrate some exemplary display patterns of patterned light emitting panels according to embodiments of the present invention. The display pattern may be formed, for example, by the combined effect of the electroluminescent layer 20 and the light-shielding layer 50. Shown in fig. 5 is a pattern 72 in the outgoing light beam of the patterned light-emitting panel with the light-blocking layer 50 in the example shown in fig. 2 blocking the first electroluminescent material region 21 in the electroluminescent layer 20. Whereas if the light-shielding layer 50 in the example shown in fig. 2 is modified to shield the second electroluminescent material region 22 in the electroluminescent layer 20, but not the first electroluminescent material region 21, the light exiting the light-emitting panel may be caused to exhibit a pattern 71 as shown in fig. 6. The outgoing light of the patterned light-emitting panel according to embodiments of the invention may also form a discontinuous pattern, for example as shown by lines 73, 74 and 75 in fig. 7. The lines 73, 74 and 75 may be realized by a plurality of discrete electroluminescent material regions in the electroluminescent layer 20 or may be realized by dividing the pattern created by the individual electroluminescent material regions in the electroluminescent layer 20 into a discontinuous pattern, for example by the shielding effect of the light-shielding layer 50.
Embodiments of the present invention also provide a vehicle lamp comprising the patterned luminescent panel 100, 100', 100″ as described in any of the embodiments above or the luminescent device as described in any of the embodiments above. The lamp according to the embodiment of the present invention may be used as a front lamp, a rear lamp, or an indoor and outdoor atmosphere lamp of a motor vehicle, for example, for realizing functions of a high beam, a low beam, a position lamp, a daytime running light, a turn signal, a brake light, and the like.
Embodiments of the present invention also provide a motor vehicle comprising a patterned light-emitting panel 100, 100', 100″ as described in any of the embodiments above or a light-emitting device as described in any of the embodiments above or a vehicle lamp as described in any of the embodiments above.
The patterned luminescent panel 100, 100', 100″ according to the embodiment of the invention can be used not only for the lamps of motor vehicles, but also in a wide variety of fields, for example in hand-held markers, instrument operation panels, etc.
Although the present invention has been described with reference to the accompanying drawings, the examples disclosed in the drawings are intended to illustrate preferred embodiments of the invention and are not to be construed as limiting the invention. The dimensional proportions in the drawings are illustrative only and should not be construed as limiting the invention.
Although a few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.
Claims (15)
1. A patterned light emitting panel comprising:
a substrate;
a patterned electroluminescent layer disposed on one side of the substrate;
an at least partially transparent protective layer disposed on a side of the electroluminescent layer opposite the substrate; and
A first electrode and a second electrode electrically connected to the electroluminescent layer;
wherein the electroluminescent layer comprises a first electroluminescent material region and a second electroluminescent material region separated from each other along a direction parallel to a substrate, wherein the first electroluminescent material region is electrically connected to the first electrode and the second electroluminescent material region is electrically connected to the second electrode, the first electrode and the second electrode are arranged on the same side of the electroluminescent layer, the first electrode and the second electrode are arranged between the substrate and the electroluminescent layer, and when an alternating voltage is applied between the first electrode and the second electrode, an alternating electric field is generated between the first electroluminescent material region and the second electroluminescent material region separated from each other, causing the first electroluminescent material region and the second electroluminescent material region to emit light.
2. The patterned light-emitting panel of claim 1, wherein the first electroluminescent material region is disposed around the second electroluminescent material region.
3. The patterned light-emitting panel of claim 1, wherein the electroluminescent layer is formed directly on a substrate.
4. The patterned light-emitting panel of claim 1, wherein the protective layer comprises a color filter region.
5. The patterned light-emitting panel of claim 4, wherein the protective layer comprises a first color filter region that allows only light of a first wavelength range to pass through and a second color filter region that allows only light of a second wavelength range to pass through.
6. The patterned light-emitting panel of any of claims 1 to 5, further comprising a light-shielding layer disposed on a side of the protective layer opposite the electroluminescent layer, the light-shielding layer being opaque or partially transparent.
7. The patterned light-emitting panel of claim 6, further comprising a light-shielding layer substrate disposed on a side of the protective layer opposite the electroluminescent layer, the light-shielding layer being formed on a side of the light-shielding layer substrate facing the protective layer.
8. The patterned light-emitting panel of claim 6, wherein a light-blocking layer blocks a portion of the electroluminescent layer.
9. The patterned light-emitting panel according to claim 6, wherein an outer surface of the light-shielding layer is formed with wood grains or metal grains.
10. The patterned light-emitting panel of any of claims 1 to 5, wherein the total thickness of the light-emitting panel is less than 1mm.
11. The patterned light-emitting panel of claim 10, wherein the total thickness of the light-emitting panel is less than 0.3mm.
12. The patterned light-emitting panel of any of claims 1 to 5, wherein the electroluminescent layer has a thickness of less than 0.1mm.
13. A light emitting device, comprising:
The patterned light-emitting panel according to any one of claims 1 to 12; and
And an alternating current driving unit having an alternating current voltage source, a first connection terminal electrically connected to the first electrode, and a second connection terminal electrically connected to the second electrode, the first and second connection terminals configured to apply an alternating current voltage generated by the alternating current voltage source between the first and second electrodes to drive the electroluminescent layer to emit light.
14. A vehicle lamp comprising the patterned light-emitting panel according to any one of claims 1 to 12 or the light-emitting device according to claim 13.
15. A motor vehicle comprising a patterned light-emitting panel according to any one of claims 1 to 12, or a light-emitting device according to claim 13, or a vehicle lamp according to claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710318363.3A CN108877573B (en) | 2017-05-08 | 2017-05-08 | Patterned light emitting panel, light emitting device, vehicle lamp and motor vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710318363.3A CN108877573B (en) | 2017-05-08 | 2017-05-08 | Patterned light emitting panel, light emitting device, vehicle lamp and motor vehicle |
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| CN108877573A CN108877573A (en) | 2018-11-23 |
| CN108877573B true CN108877573B (en) | 2024-09-24 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1798461A (en) * | 2004-12-24 | 2006-07-05 | 中华映管股份有限公司 | Display of organic electroluminescence, and preparation method |
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| CN1798461A (en) * | 2004-12-24 | 2006-07-05 | 中华映管股份有限公司 | Display of organic electroluminescence, and preparation method |
| CN105163412A (en) * | 2015-06-19 | 2015-12-16 | 北京大学深圳研究生院 | Planar electroluminescent device and application thereof |
| CN106189490A (en) * | 2016-08-29 | 2016-12-07 | 汕头市派亚油墨有限公司 | Electroluminescent uv ink |
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