TWI525528B - Method for masking picture - Google Patents

Description

Screen masking method

The present invention relates to a method for masking a picture, and more particularly to a method for masking a picture that can quickly hide picture information or change the direction in which the image data is blocked.

With the development of information technology, the application of displays has become more and more popular. The price of the display is getting lower and lower, and the resolution and performance of the display are getting more and more advanced. However, when the user is using the currently common display, if the user wants to quickly hide the privacy information, it is often necessary to operate the related software. Therefore, users often cannot quickly block some or all of the display area on the display.

Accordingly, an aspect of the present invention is to provide a picture masking method suitable for use in a display. The above display includes a plurality of control buttons. The method for masking a screen includes the following steps: displaying an initial screen on the display; and continuously receiving at least one corresponding display area on the display after continuously receiving signals of at least two adjacent control buttons in the control button Output an image data; and, replace the image data a part of the initial picture in the at least one corresponding display area.

Another aspect of the present invention is to provide a picture masking method suitable for use in a display. The above display includes a plurality of control buttons. The method for masking the image includes re-outputting an updated image data after the screen of the display is rotated by 90 degrees, and the long side of the image described by the updated image data is parallel to the short side of the screen of the display.

The invention further provides a picture masking method suitable for a display. The display includes a plurality of control buttons and a plurality of display areas, and the image masking method includes: providing a plurality of backlights, wherein the plurality of backlights respectively correspond to the display areas; and turning on the plurality of backlights to enable the plurality of displays on the display The display area displays an initial screen; and, after continuously receiving the signals of at least two adjacent control buttons of the plurality of control buttons, the corresponding one of the plurality of display areas is closed. The backlight is used to replace a part of the initial picture in the corresponding display area with a black picture.

An advantage of the present invention is that by using a touch button disposed on a frame of, for example, a display, and detecting whether the touch button is continuously touched, the corresponding output is output by, for example, a screen menu unit or an external image processing unit. Contains image data such as black so that the information displayed on the screen can be quickly hidden. In this way, the user's privacy information can be conveniently and quickly protected. In addition, the user can quickly restore the display screen by simply touching the touch button in reverse. The above touch buttons can be integrated into the original buttons on the display frame to adjust the display settings (for example: brightness, contrast, color temperature, switch, etc.), do not occupy extra space, and can save Cost of production.

100, 400, 500‧‧‧ screen masking method

102, 104, 106, 402, 404, 406, 504, 507, 508 ‧ ‧ steps

110‧‧‧ display

110a‧‧‧ display panel

120, 122, 124, 126, 128‧‧‧ control buttons

131, 133, 135, 137, 131', 133', 135', 137', 131a, 133a, 135a, 137a ‧ ‧ display area

Directions 160, 162, 660, 662‧‧

P‧‧‧ initial screen

P’‧‧‧ initial screen after rotation

Q‧‧‧Image data

Q’‧‧‧Image data after rotation

210‧‧‧Screen menu unit

310, 610‧‧‧ external image processing unit

110b‧‧‧Backlight unit

130‧‧‧Function Control Unit

132, 134, 136, 138‧‧ ‧ backlight

140‧‧‧Scaler

142‧‧‧Screen menu unit

144‧‧‧Synthesis unit

150‧‧‧Video input interface

160‧‧‧ memory

190‧‧‧External image processing unit

S‧‧‧shading signal

Ia‧‧‧ input screen signal

Cr‧‧‧ external processing control signal

C _B ‧‧‧Backlight control signal

Qr‧‧‧Update image data

Fig. 1 is a flow chart showing a screen masking method according to a first embodiment of the present invention.

Fig. 2 is a schematic view of a display suitable for use in the first embodiment of the present invention.

FIG. 3 is a block diagram showing a circuit of a display according to an embodiment of the invention.

Figure 4 is a flow chart showing a method of masking a picture according to a third embodiment of the present invention.

Fig. 5 is a flow chart showing a method of masking a picture according to a fourth embodiment of the present invention.

Figure 6 is a schematic view showing the display of the embodiment of the present invention after being rotated by 90 degrees.

FIG. 7 is a schematic diagram showing the output of updated image data after the display is rotated 90 degrees according to an embodiment of the invention.

The embodiments are described in detail below with reference to the accompanying drawings, but the embodiments are not intended to limit the scope of the invention, and the description of the structure operation is not intended to limit the order of execution, any component recombination The structure, which produces equal devices, is within the scope of the present invention. In addition, the drawings are for illustrative purposes only and are not drawn to the original dimensions. For ease of understanding, the same elements in the following description will be denoted by the same reference numerals.

First embodiment

FIG. 1 is a flow chart of a screen masking method 100 according to a first embodiment of the present invention. Fig. 2 is a schematic view of a display suitable for use in the first embodiment of the present invention. In order to explain the screen masking method 100 of the first embodiment of the present invention, please refer to FIG. 1 and FIG. 2 simultaneously.

In FIG. 2, display 110 includes five control buttons 120, 122, 124, 126, and 128. In addition, the display panel 110a of the display 110 includes four display areas 131, 133, 135, and 137. It should be noted that the display areas 131, 133, 135, and 137 are indicated by broken lines in the drawing. In order to clearly distinguish the dotted lines, the adjacent dashed lines are separated by a distance, but in reality the adjacent display areas are in contact with each other. In addition, the number of the above control buttons is not limited to five, and the number of the display areas is not limited to four. Those skilled in the art can adjust the number of control buttons and display areas described above according to actual needs.

Please refer to both Figure 1 and Figure 2. In order to implement the screen masking method 100 of the present invention on the display 110, in step 102 shown in FIG. 1, an initial screen P is first displayed on the display 110. Next, in step 104, when the user continuously presses or touches at least two adjacent control buttons of the control buttons 120, 122, 124, 126, and 128 in the first direction 160, the display 110 will be forward ( Receiving signals of at least two corresponding adjacent control buttons in response to the pressing sequence of the first direction 160, and then for at least one corresponding display area on the display 110 (eg, display areas 131, 133, 135, and 137) One of them outputs an image data. Image data will replace the part corresponding to the display area. Initial picture P.

In the above, if the user continuously presses the adjacent control buttons 120 and 122, the display 110 outputs the image data Q corresponding to the display area 131; if the user continuously presses the adjacent control buttons 122 and 124, the display 110 corresponds to The image data Q is outputted in the display area 133; if the user continuously presses the adjacent control buttons 124 and 126, the display 110 outputs the image data Q corresponding to the display area 135; and if the user continuously presses the adjacent control button 126 and After 128, the display 110 outputs the image data Q corresponding to the display area 137. In the present embodiment, the control buttons 120 to 128 of the display 110 are arranged along the long side direction of the screen. Therefore, in order to allow the user to intuitively cover or restore the screen on the screen in the pressing direction of the control button, the long side of the output image data Q is parallel to the short side of the screen of the display 110. In other embodiments, if the control buttons of the display are arranged along the short side of the screen, the long side of the output image data will be parallel to the long side of the screen of the display.

Further, when the adjacent control buttons 120 and 122 are successively pressed, the display 110 continuously receives the signals of the control buttons 120 and 122, and outputs an image data Q for the display area 131. This image material Q replaces part of the initial picture P in the display area 131. The image data Q is a video material including a black screen (indicated by a halftone dot in FIG. 2) to shield a part of the initial screen P in the display area 131. Of course, the image data Q may also contain a picture sufficient to mask some of the other colors of the initial picture P.

Similarly, when adjacent control buttons 122 and 124, 124 and 126, When 126 and 128 are successively pressed, the display area 133, 135 or 137 outputs the image material Q instead of the partial initial picture P in the display area 133, 135 or 137. In a specific situation, when the user successively presses each of the control buttons 122 to 128 in the first direction 160, the entire initial picture P displayed on the display 110 is replaced by the plurality of image data Q. And was completely obscured.

On the other hand, when the entire or part of the initial picture P is masked by being replaced by the image data, if the user continuously presses or touches the control buttons 120, 122, 124, 126 and 128 in the second direction 162 At least two adjacent control buttons, the display 110 will receive signals of at least two corresponding adjacent control buttons in a reverse direction (corresponding to the pressing sequence in the second direction 162), and then at least one for the display 110 The corresponding display area (for example, one of the display areas 131, 133, 135, and 137) stops outputting the above-described image material Q to restore the initial picture P corresponding to the portion in the display area.

In order to explain how the display 110 outputs image data after receiving the signal of the control button, please refer to FIG. FIG. 3 is a block diagram showing the circuit of the display 110 as shown in FIG. 2 according to an embodiment of the invention. For convenience and clarity of explanation, FIG. 3 is an example of the embodiment shown in FIG. 2, but is not limited thereto.

As shown in FIG. 3, the display 110 includes a display panel 110a, a backlight unit 110b, a plurality of control buttons 120-128, a function control unit 130, a scaler 140, a video input interface 150, and a memory 160. The scaler 140 is electrically connected to the display panel 110a, the backlight unit 110b, and the function Control unit 130, video input interface 150, and memory 160. The function control unit 130 is electrically connected to the plurality of control buttons 120-128. In addition, the scaler 140 further includes an on-screen display unit (OSD unit) 142 and a synthesizing unit 144.

In FIG. 3, the scaler 140 receives and processes the input picture signal Ia from the external image processing unit 190 through the video input interface 150 to generate an initial picture P. In the normal state, the initial picture P is first transferred to the memory 160. When the subsequent display is performed, the initial picture P is read from the memory 160 and transmitted to the display panel 110a, so that the buffer function can be achieved.

The function control unit 130 is configured to receive the signals of the control buttons 120-128, determine whether to continuously receive the signals of any two adjacent control buttons, and confirm the sequence of the received signals (corresponding to the first direction 160) Forward reception or reverse reception in the second direction). In order to determine whether the signals of any two adjacent control buttons are continuously received, the function control unit 130 has a timing circuit (not shown) for calculating the time interval between the signals of the two adjacent control buttons, if the time interval is less than A threshold, for example 100 milliseconds, then the function control unit 130 determines that the signals of the two adjacent control buttons are continuously received. Of course, the magnitude of the threshold can be adjusted as desired by those skilled in the art in accordance with actual needs.

After the function control unit 130 continuously receives the signals of any two adjacent control buttons, the mask signal S is continuously sent to the corresponding display area to the scaler 140. When receiving the masking signal S, the scaler 140 controls the screen menu unit 142 to output image data for the corresponding display area. Q to the synthesizing unit 144, at which time the initial picture P read from the memory 160 is also input to the synthesizing unit 144. After the initial picture P is merged with the image data Q by the synthesizing unit 144 (for example, superimposed, multiplied, etc.), the synthesized picture P+Q is output to the display panel 110a and displayed on the display 110, as shown in FIG. Shown.

After the function control unit 130 continuously receives the signals of any two adjacent control buttons in reverse, the masking signal S is stopped from being sent to the scaler 140 for the corresponding display area. When the scaler 140 does not receive the masking signal S for the corresponding display area, the screen menu unit 142 stops outputting the image data Q for the corresponding display area. At this time, the initial screen P read out from the memory 160 is directly output to the display panel 110a and displayed on the display 110.

Second embodiment

In the above embodiment, after the function control unit 130 continuously receives the signals of any two adjacent control buttons, the screen menu unit 142 shown in FIG. 3 outputs the image data Q for the corresponding display area. The initial picture P and the image data Q are combined by the synthesizing unit 144 and output to the display panel 110a to achieve the result of masking the partial initial picture P.

In another embodiment of the present invention, the operation of masking/reducing the initial picture P may be implemented by the external image processing unit 190 as shown in FIG. External image processing unit 190 can be, but is not limited to, a VGA display chip. In an embodiment, the external image processing unit 190 and the video input medium 150 interfaces through high-resolution multimedia interface (HDMI), digital video interface (DVI), video graphics array interface (VGA Interface) (VGA Interface), etc. connection.

In the embodiment, when the scaler 140 receives the masking signal S continuously sent by the function control unit 130 for the corresponding display area, the scaler 140 transmits the external processing control signal to the corresponding display area through the video input interface 150. Cr to the external image processing unit 190. In one embodiment, the external processing control signal Cr is an I ² C (Inter-Integrated Circuit) control signal.

When receiving the external processing control signal Cr, the external image processing unit 190 transmits a masking signal (not shown) to the scaler 140 through the video input interface 150. The scaler 140 generates a masking screen (not shown) according to the masking screen signal, and transmits the masking screen to the display panel 110a for display. The masking screen outputs the image data Q in the corresponding display area. In this way, the result of masking part of the initial picture P can be achieved.

On the other hand, when the scaler 140 does not receive the masking signal S sent by the function control unit 130, the scaler 140 stops transmitting the external processing control signal Cr to the external image processing unit 190. At this time, the external image processing unit 190 stops outputting the above-described masked screen signal to the scaler 140. In this way, the result of restoring the initial picture P can be achieved.

Third embodiment

In still another embodiment of the present invention, the operation of the masking/reduction initial picture P may be implemented by using the backlight unit 110b as shown in FIG. 4 is a flow chart of a screen masking method 400 according to a third embodiment of the present invention. In order to explain the screen masking method 400 of the third embodiment of the present invention, please refer to FIGS. 3 and 4 simultaneously.

In FIG. 3, the backlight unit 110b includes a plurality of backlights 132, 134, 136, and 138 corresponding to the display areas 131, 133, 135, and 137, respectively. It should be noted that the backlights 132, 134, 136, and 138 are indicated by broken lines in FIG. In order to clearly distinguish the dotted lines, the adjacent dashed lines are separated by a distance, but in reality the adjacent backlights are in contact with each other.

In step 402 shown in FIG. 4, a plurality of backlights 132, 134, 136, and 138 corresponding to display areas 131, 133, 135, and 137 as shown in FIG. 3 are provided.

Next, in step 404, backlights 132, 134, 136, and 138 are turned on such that display areas 131, 133, 135, and 137 on display 110 display an initial picture P.

Then, in step 406, after continuously receiving the signals of at least two adjacent control buttons of the control buttons 120, 122, 124, 126, and 128 in the forward direction, one of the display regions 131, 133, 135, and 137 is turned off. The backlight corresponding to the corresponding display area replaces part of the initial picture P in the corresponding display area by using a black screen.

Further, when the scaler 140 receives the masking signal S continuously sent by the function control unit 130 for the corresponding display area, the scaler 140 transmits a backlight control signal C _B to the backlight unit 110b. When receiving the backlight control signal C _B , the backlight unit 110 _b turns off the backlight corresponding to the corresponding display area to replace a part of the initial picture P in the corresponding display area by using a black screen. In this way, the result of masking part of the initial picture P can be achieved.

On the other hand, when the scaler 140 does not receive the masking signal S sent by the function control unit 130, the scaler 140 stops transmitting the backlight control signal C _B to the backlight unit 110b. At this time, the backlight unit 110b turns on the backlight corresponding to the corresponding display area, so that the result of restoring the initial picture P can be achieved.

Fourth embodiment

FIG. 5 is a flow chart of a screen masking method 500 according to a fourth embodiment of the present invention. Fig. 6 is a schematic view showing the display 110 as shown in Fig. 2 after being rotated by 90 degrees. Figure 7 is a schematic diagram showing the display of an updated image data after the display 110 is rotated 90 degrees. In order to explain the screen masking method 500 of the fourth embodiment of the present invention, please refer to FIG. 5, FIG. 6, and FIG. Similarly to the second embodiment, in the fourth embodiment of the present invention, the operation of the above-described masking/reduction initial picture P is realized by the external image processing unit 190 as shown in FIG.

In step 504 of the screen masking method 500 shown in FIG. 5, the long side of the image data Q as shown in FIG. 2 is parallel to the short side of the screen of the display 110.

In order to enable the user to normally view the screen displayed on the screen, in step 507, after the screen of the display 110 is rotated 90 degrees, on the screen. The displayed screen is also rotated by 90 degrees correspondingly. Fig. 6 shows the initial screen P' after being rotated and the image data Q' after being rotated. The display areas 131', 133', 135', and 137' shown in Fig. 6 correspond to the display areas 131, 133, 135, and 137 shown in Fig. 2, respectively.

In order to allow the user to intuitively block the rotated initial picture P' along the direction of the button arrangement, in step 508, after the screen of the display 110 is rotated by 90 degrees, an updated image data Qr is output (eg, Figure 7)).

In one embodiment, the image data Q' in Fig. 6 is replaced by the updated image data Qr corresponding to the above-described rotation by 90 degrees. As shown in FIG. 7, the long side of the image described by the updated image data Qr is parallel to the short side of the screen of the display 110.

For example, if the image data Q is output to the display area 131 as shown in FIG. 2 before the screen is rotated, the updated image data Qr is output to the display area after the screen is rotated by 90 degrees as shown in FIG. 131a.

The operation after the screen is rotated by 90 degrees is as follows. If the user continuously presses the adjacent control buttons 128 and 126 in the third direction 660, the display 110 outputs the updated image data Qr corresponding to the display area 131a; if the user continuously presses the adjacent control button 126 in the third direction 660 and 124, the display 110 outputs the updated image data Qr corresponding to the display area 133a; if the user continuously presses the adjacent control buttons 124 and 122 in the third direction 660, the display 110 outputs the updated image data Qr corresponding to the display area 135a; If the user continuously presses the adjacent control buttons 122 and 120 in the third direction 660, the display 110 corresponds to the display area. 137a outputs updated image data Qr.

On the other hand, when the entire or part of the corresponding rotated initial picture P' is blocked by the updated image data Qr, if the user continuously presses or touches the control button 120 in the fourth direction 662, When at least two adjacent control buttons 122, 124, 126, and 128 are in use, display 110 will stop for at least one corresponding display area on display 110 (eg, one of display areas 131a, 133a, 135a, and 137a) The updated image data Qr is output to restore the initial picture P' corresponding to the portion of the display area that has been rotated correspondingly.

It should be understood that the steps mentioned in the above embodiments may be adjusted according to actual needs, and may be performed simultaneously or partially simultaneously, unless the order is specifically described.

In summary, the present invention utilizes a touch button disposed on a frame of, for example, a display, and detects whether the touch button is continuously enabled, and then uses, for example, a screen menu unit or an external image processing unit. The output contains image data such as black so that the information displayed on the screen can be quickly hidden. In this way, the user's privacy information can be conveniently and quickly protected. In addition, the user can quickly restore the display screen by simply enabling the touch button in the reverse direction. The above-mentioned touch buttons can be integrated into the original buttons on the display frame to adjust the display settings (for example, brightness, contrast, color temperature, switch, etc.) without occupying extra space and saving production costs.

Although the present disclosure has been disclosed in the above embodiments, it is not intended to limit the disclosure, and anyone skilled in the art may not deviate from the disclosure. In the spirit and scope of the content, the scope of protection of the disclosure is subject to the definition of the scope of the appended patent application.

100‧‧‧Screen masking method

102, 104, 106 ‧ ‧ steps

Claims (10)

A screen masking method is applicable to a display, the display includes a plurality of control buttons, the screen masking method includes: displaying an initial screen on the display; and continuously receiving at least two adjacent ones of the control buttons in a forward direction After controlling the signal of the button, outputting an image data for at least one corresponding display area on the display; and replacing a portion of the initial picture in the at least one corresponding display area with the image data. The screen blanking method according to claim 1, wherein the image data is an image material including a black image. The screen masking method of claim 1, wherein the step of outputting the image data in the at least one corresponding display area is performed by using an on-screen display module (OSD module) for the at least one corresponding display area. The image data is output. The method of masking the image according to claim 1, wherein the step of outputting the image data in the at least one corresponding display area is performed by using an external image processing unit to output the image data in the at least one corresponding display area. The picture masking method of claim 1, the screen masking method further comprises: After continuously receiving the signals of at least two adjacent control buttons of the control buttons in reverse, the image data is stopped from being output to the corresponding display region to restore a portion of the initial image. The screen masking method of claim 1, the screen masking method further comprises: after continuously receiving the signals of each of the control buttons in a forward direction, respectively outputting a plurality of corresponding display areas on the display The image data; and replacing the initial picture with the image data. The picture masking method of claim 1, wherein the long side of the image described by the image data is parallel to the short side of the screen of the display. The screen masking method of claim 7, the screen masking method further comprises: after the screen of the display is rotated by 90 degrees, re-outputting an updated image data, wherein the long side of the image described by the updated image data is parallel to the The short side of the screen of the display. The picture masking method of claim 1, wherein the long side of the image described by the image data is parallel to the long side of the screen of the display. A picture masking method suitable for a display, the display package The method includes: providing a plurality of backlights, wherein the backlights respectively correspond to the display areas; and turning on the backlights to display the display areas on the display An initial screen; and after receiving the signals of at least two adjacent control buttons of the control buttons in a continuous manner, turning off the backlight corresponding to a corresponding one of the display regions to utilize a black The screen replaces a portion of the initial picture in the corresponding display area.