Display module, anti-peep display method and display device

Abstract

This invention discloses a display module, a privacy display method, and a display device. One embodiment of the display module includes a display panel, a timing controller, a driver chip, and a processor. The processor responds to user input by outputting a display signal to the driver chip and a privacy drive signal to the timing controller. The timing controller generates an adjustable angle adjustment signal based on the privacy drive signal. The driver chip generates a privacy control signal to the display panel based on the display signal and the angle adjustment signal, causing the display panel to switch to a privacy display state and adjust the viewing angle accordingly. The display module of this invention designs the processor's signal output function so that the processor can output a privacy drive signal, and the timing controller generates an adjustable angle adjustment signal based on the privacy drive signal, enabling the viewing angle to change according to the angle adjustment device, making it suitable for privacy displays in multi-user environments.

Description

Technical Field

[0001] This invention relates to the field of display technology. More specifically, it relates to a display module, a privacy display method, and a display device. Background Technology

[0002] Privacy protection technologies applied to display devices can only set the privacy display to be turned on and off. However, if two or more users need to use the screen together, the screen display cannot meet the viewing angles of multiple people at the same time. Summary of the Invention

[0003] The purpose of this invention is to provide a display module, a privacy display method, and a display device to solve at least one of the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The first aspect of this invention provides a display module, the display module including a display panel, a timing controller, a driver chip, and a processor.

[0006] The processor responds to user input by outputting a display signal to the driver chip and an anti-peeping drive signal to the timing controller.

[0007] The timing controller generates an adjustable angle adjustment signal based on the privacy protection drive signal;

[0008] The driver chip generates a privacy control signal to the display panel based on the display signal and the angle adjustment signal, so that the display panel changes to a privacy display state and adjusts the viewing angle for display based on the received privacy control signal.

[0009] In an optional embodiment, the driver chip includes:

[0010] The display signal receiver is used to receive the display signal, which includes a display enable signal and a privacy enable signal.

[0011] Angle adjustment signal receiver, used to receive angle adjustment signals;

[0012] A privacy control signal conversion module is connected at one end to the display signal receiver and at the other end to the angle adjustment signal receiver. When the privacy control signal conversion module determines that the received display signal is a privacy enable signal, it converts the privacy enable signal and the angle adjustment signal to generate a privacy control signal; and

[0013] The privacy control signal output terminal connected to the display panel.

[0014] In an optional embodiment, the angle adjustment signal includes at least two angle adjustment signals with different pulse widths. The wider the pulse width, the larger the viewing angle on the light-emitting side of the display panel.

[0015] In an optional embodiment, the display panel is a liquid crystal display panel, which controls the deflection of liquid crystals in the liquid crystal layer in response to a privacy control signal to adjust the viewing angle.

[0016] In an optional embodiment, the timing controller and the driver chip are integrated on the same driver circuit board.

[0017] In an optional embodiment, the processor is further configured to output display drive signals to a timing controller.

[0018] The timing controller generates display timing signals based on the display drive signals.

[0019] When the received display signal is a display enable signal, the driver chip generates a display control signal based on the display enable signal, so that the display panel displays according to the display timing signal and the privacy control signal.

[0020] A second aspect of the present invention provides a method for privacy display of a display module, the method comprising:

[0021] In response to user input, output display signals and output privacy protection drive signals;

[0022] An adjustable angle adjustment signal is generated based on the privacy protection drive signal;

[0023] An anti-peeping control signal is generated based on the display signal and the angle adjustment signal;

[0024] The system switches to privacy display mode and adjusts the viewing angle based on the received privacy control signal.

[0025] In an optional embodiment, the display signal includes a display enable signal and a privacy enable signal.

[0026] The step of generating the privacy control signal based on the display signal and the angle adjustment signal further includes:

[0027] Receive angle adjustment signal;

[0028] The system determines whether the received display signal is a privacy protection enable signal. When the privacy protection control signal conversion module determines that the received display signal is a privacy protection enable signal, it converts the privacy protection enable signal and the angle adjustment signal to generate a privacy protection control signal.

[0029] In an optional embodiment, the method further includes:

[0030] Output display drive signal;

[0031] Generate display timing signals based on display driver signals;

[0032] When the received display signal is a display enable signal, a display control signal is generated based on the display enable signal;

[0033] The display is based on the timing signal and the privacy control signal.

[0034] A third aspect of the present invention provides a display device, the display device comprising the display module described in the first aspect of the present invention.

[0035] The beneficial effects of this invention are as follows:

[0036] The display module of this invention is designed with the signal output function of the processor so that the processor can output a privacy protection drive signal. The timing controller generates an adjustable angle adjustment signal according to the privacy protection drive signal, so that the viewing angle changes according to the angle adjustment device, thus making it suitable for privacy protection displays in multi-person environments. Attached Figure Description

[0037] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0038] Figure 1 This diagram illustrates the system architecture of a display module according to an embodiment of the present invention.

[0039] Figure 2 A schematic diagram of the module structure of the driver chip according to an embodiment of the present invention is shown;

[0040] Figure 3 A schematic diagram showing the waveforms of the display signal and the angle adjustment signal according to an embodiment of the present invention is provided.

[0041] Figure 4 and Figure 5 A schematic diagram showing the viewing angle of the display panel corresponding to the angle adjustment signals in different embodiments of the present invention;

[0042] Figure 6 This diagram illustrates the signals used by the display module in an embodiment of the present invention to perform the display function. Detailed Implementation

[0043] To more clearly illustrate the present invention, the following description, in conjunction with embodiments and accompanying drawings, further explains the invention. Similar components in the drawings are indicated by the same reference numerals. Those skilled in the art should understand that the specific description below is illustrative rather than restrictive and should not be construed as limiting the scope of protection of the present invention.

[0044] Existing privacy technologies applied to display devices can only set the privacy display to be turned on and off. However, if two or more users need to use the screen together, the screen display cannot meet the viewing angles of multiple people at the same time. In view of this, this invention proposes a display module, a privacy display method, and a display device to solve the above problems.

[0045] The first embodiment of the present invention proposes a display module, such as... Figure 1 As shown, the display module includes a display panel, a timing controller, a driver chip, and a processor.

[0046] The processor responds to user input by outputting a display signal to the driver chip and an anti-peeping drive signal to the timing controller.

[0047] The timing controller generates an adjustable angle adjustment signal based on the privacy protection drive signal;

[0048] The driver chip generates a privacy control signal to the display panel based on the display signal and the angle adjustment signal, so that the display panel changes to a privacy display state and adjusts the viewing angle for display based on the received privacy control signal.

[0049] The display module of this invention is designed with the signal output function of the processor so that the processor can output a privacy protection drive signal. The timing controller generates an adjustable angle adjustment signal according to the privacy protection drive signal, so that the viewing angle changes according to the angle adjustment device, thus making it suitable for privacy protection displays in multi-person environments.

[0050] In an optional embodiment, such as Figure 2 As shown, the driver chip includes:

[0051] Display signal receiver 10 is used to receive the display signal, which includes a display enable signal and a privacy enable signal;

[0052] Angle adjustment signal receiver 20 is used to receive angle adjustment signals;

[0053] The privacy control signal conversion module 30 is connected at one end to the display signal receiving end 10 and at the other end to the angle adjustment signal receiving end 20. When the privacy control signal conversion module 30 determines that the received signal is a privacy enable signal, it converts the privacy enable signal and the angle adjustment signal to generate a privacy control signal; and

[0054] The privacy control signal output terminal connected to the display panel.

[0055] The driver chip in this embodiment is equipped with logic circuitry for receiving and determining anti-spy control signals. Since the display signals output by the processor include both normal display signals and display enable signals, when implementing anti-spy display mode, the processor needs to determine the display enable signal and the anti-spy enable signal. In one optional embodiment, such as... Figure 3 As shown, the signal strength of the privacy enable signal is different from that of the display enable signal, in order to distinguish between the normal display state and the privacy display state. When the privacy control signal module determines that the display signal received by the display signal receiver 10 is a privacy enable signal, it converts the angle adjustment signal received by the angle adjustment signal receiver 20 and the privacy enable signal to generate a privacy control signal to control the display panel.

[0056] like Figure 3 As shown, the angle adjustment signal in this embodiment is a pulse signal with a pulse width, and the privacy angle is adjusted by changing the pulse width. In an optional embodiment, as... Figure 4 and Figure 5 As shown, the angle adjustment signal includes at least two angle adjustment signals with different pulse widths. The wider the pulse width, the larger the viewing angle on the light-emitting side of the display panel.

[0057] Figure 4 and Figure 5 Exemplary schematic diagrams of angle adjustment signals from two embodiments are shown, over a continuous period of time. Figure 4 The pulse width of the angle adjustment signal 1 shown is greater than Figure 5 The pulse width of the angle adjustment signal shown is smaller, resulting in a larger viewing angle α on the light-emitting side of the display panel. This makes it more suitable for privacy displays when multiple users are watching. Figure 5 The pulse width of the angle adjustment signal 1 shown is relatively small, and the visible angle α on the light-emitting side of the display panel is relatively small, making it more suitable for privacy mode display scenes with fewer people. Therefore, this embodiment of the invention designs the functions of the processor and the timing controller so that the processor has the function of outputting privacy drive signals and the timing controller has the function of receiving angle adjustment signals output by the processor. A signal transmission interface is set between the timing controller and the driver chip to transmit the angle adjustment signal to the driver chip. The driver chip judges the display status and converts the privacy control signal to generate a privacy control signal to control the display angle of the display panel to be adjusted.

[0058] It is worth noting that the adjustable angle adjustment signal in this embodiment of the invention is not limited to... Figure 4 and Figure 5The pulse width arrangement shown is different for different sized display panels. The timing controller generates pulse widths corresponding to the privacy control signals of the display panel itself, depending on the actual application. This will not be elaborated further here.

[0059] In an optional embodiment, the display panel is a liquid crystal display panel, which controls the deflection of liquid crystals within the liquid crystal layer in response to a privacy control signal to adjust the viewing angle. In this embodiment, a liquid crystal display panel is used, which includes a liquid crystal layer and driving electrodes for deflecting the liquid crystals within the liquid crystal layer. The liquid crystal display panel applies a voltage to the driving electrodes according to the privacy control signal, thereby controlling the deflection of the liquid crystals and achieving a change in the viewing angle.

[0060] In an optional embodiment, such as Figure 1 As shown, the timing controller and the driver chip are integrated on the same driver circuit board.

[0061] In this embodiment of the invention, to improve the signal transmission effect between the timing controller and the driver chip, the timing controller and the driver chip are integrated into the same driver circuit board. In an optional embodiment, when the display panel integrates the touch driver chip, and when the liquid crystal display panel is a medium-sized display panel, for example, when the size of the display panel is larger than 10 inches, the touch driver chip and the timing controller are not disposed on the same driver circuit board to avoid signal interference between the signal transmission of the touch driver chip and the signal transmission of the timing controller.

[0062] In an optional embodiment, such as Figure 6 As shown, the processor is also used to output display drive signals to the timing controller.

[0063] The timing controller generates display timing signals based on the display drive signals.

[0064] When the received display signal is a display enable signal, the driver chip generates a display control signal based on the display enable signal, so that the display panel displays according to the display timing signal and the privacy control signal.

[0065] Based on the aforementioned embodiment, the display module implements a privacy display process, and the viewing angle is adjusted in the privacy display mode. This embodiment further explains the display function during the normal display process of the display panel. Therefore, the display module of this embodiment has an adjustable privacy change function in addition to the display function.

[0066] Therefore, based on the display module of the above embodiments of the present invention, a signal transmission channel is set between the processor and the timing controller, so that the processor outputs a privacy protection drive signal, and the timing controller generates an angle adjustment signal to adjust the viewing angle according to the privacy protection drive signal. This embodiment also sets a signal transmission channel between the timing controller and the driver chip and designs the internal functions of the driver chip. The driver chip can generate a privacy protection control signal to control the viewing angle of the display panel according to the angle adjustment signal, so as to be suitable for privacy protection display application scenarios with multiple people.

[0067] In an optional embodiment, the user inputs a command signal to adjust the viewing angle of the privacy display mode through the interactive interface of the display panel. For example, the user implements the operation command to change the viewing angle through the buttons or touch of the interactive interface. For example, the user switches from the checkbox of the normal display mode to the privacy display mode with a viewing angle of 60 degrees, or for example, to switch from the privacy display mode with a viewing angle of 60 degrees to the privacy display mode with a viewing angle of 120 degrees.

[0068] Based on the above embodiments, the viewing angle adjusted by the angle adjustment signal is preset. In another embodiment, the display module further includes a camera component. The processor generates a privacy enable signal in response to the user's input operation of switching to the privacy display mode. The camera component captures a viewing angle image facing the light-emitting side of the display panel according to the privacy enable signal output by the processor, and feeds back the video data corresponding to the viewing angle image to the processor. The processor identifies the face position in the viewing angle image and determines the viewing angle of the display panel according to the face position, thereby outputting a privacy drive signal suitable for the current multi-person application scenario, so that the timing controller generates an angle adjustment signal to adjust the viewing angle according to the privacy drive signal.

[0069] In an optional embodiment, the viewing image is either a picture or a video. That is, when the viewing image is a picture, it can be obtained by the camera component directly capturing the camera area; when the viewing image is a video, it can be a recording of the area to be identified by the user based on the camera component. The processor identifies the positions of each face in the video, merges and locates them, and determines the viewing angle of the display panel based on the positions of each face, thereby outputting an anti-peeping drive signal suitable for current multi-user application scenarios. Another embodiment of the present invention proposes an anti-peeping display method for a display module, the method comprising:

[0070] In response to user input, output display signals and output privacy protection drive signals;

[0071] An adjustable angle adjustment signal is generated based on the privacy protection drive signal;

[0072] An anti-peeping control signal is generated based on the display signal and the angle adjustment signal;

[0073] The system switches to privacy display mode and adjusts the viewing angle based on the received privacy control signal.

[0074] The privacy display method of the display module in this embodiment is applied to various components of the display module. For example, the hardware that outputs the display signal and the privacy drive signal is a processor, the hardware that generates the adjustable angle adjustment signal is a timing controller, and the hardware that generates the privacy control signal is a driver chip. Finally, the signal is output to the display panel for display, thereby realizing the interactive transmission of various hardware components of the display module. This privacy display method has a method for adjusting the viewing angle in the privacy display mode. The viewing angle can be adjusted according to the number of users, and it can be applied to privacy display adjustment in multi-user scenarios.

[0075] In an optional embodiment, the display signal includes a display enable signal and a privacy enable signal, and the step of generating a privacy control signal based on the display signal and the angle adjustment signal further includes;

[0076] Receive angle adjustment signal;

[0077] The system determines whether the received display signal is a privacy protection enable signal. When the privacy protection control signal conversion module 30 determines that the received signal is a privacy protection enable signal, it converts the privacy protection enable signal and the angle adjustment signal to generate a privacy protection control signal.

[0078] In this embodiment, the generation of the privacy control signal is further designed to realize the conversion of the privacy enable signal. The angle adjustment signal is not singular and unchanging. In response to the user's input operation, the timing controller generates angle adjustment signals suitable for different scenarios. The driver chip generates privacy control signals to control the change of the viewing angle of the display panel according to different angle adjustment signals.

[0079] In an optional embodiment, the method further includes:

[0080] Output display drive signal;

[0081] Generate display timing signals based on display driver signals;

[0082] Determine whether the received display signal is a display enable signal. If the received display signal is a display enable signal, generate a display control signal based on the display enable signal.

[0083] The display is based on the timing signal and the privacy control signal.

[0084] This embodiment describes the driving method for the display module during normal display. In this embodiment, the processor outputs a display driving signal, the timing controller generates a display timing signal based on the display driving signal, the driver chip determines whether the received display signal is a display enable signal, and when the received display signal is a display enable signal, the driver chip generates a display control signal based on the display enable signal, and the display panel displays according to the display timing signal and the privacy control signal, thus ensuring the normal implementation of the display function while having a privacy display function.

[0085] In an optional embodiment, the user's input operation can be a click, drag, or checkbox, which in turn causes the processor to generate a display signal. For example, the user can use a button or touchscreen on the interface to change the viewing angle. For instance, the user can switch from a checkbox in the normal display mode to a privacy display mode with a viewing angle of 60 degrees, or from a viewing angle of 60 degrees to a privacy display mode with a viewing angle of 120 degrees, causing the processor to generate a privacy enable signal. In this embodiment, the display signal includes not only the privacy enable signal but also the normal display enable signal, such as when the user switches from the privacy display mode to the normal display mode, causing the processor to generate a display enable signal.

[0086] Based on the above embodiments, the viewing angle adjusted by the angle adjustment signal is preset. In another embodiment, before outputting the privacy protection drive signal, the method further includes:

[0087] A privacy enable signal is generated in response to a user input action to switch to privacy display mode; for example, this process may be performed by a processor.

[0088] Based on the privacy enable signal output by the processor, an image of the viewing angle facing the light-emitting side of the display panel is captured. For example, this process can be implemented by the camera component of the display module.

[0089] The viewing angle of the display panel is determined based on the viewing angle image, thereby outputting an anti-peeping drive signal suitable for the current multi-user application scenario. In this embodiment, this process can be executed by a processor. For example, the processor identifies the position of a face in the viewing angle image and determines the viewing angle of the display panel based on the face position, thereby outputting an anti-peeping drive signal suitable for the current multi-user application scenario, so that the timing controller generates an angle adjustment signal to adjust the viewing angle based on the anti-peeping drive signal.

[0090] In an optional embodiment, the viewing image is either a picture or a video. That is, when the viewing image is a picture, the picture can be obtained by the camera component directly capturing the camera area. When the viewing image is a video, the video can be a recording of the area to be identified by the user based on the camera component. The processor identifies the position of each face in the video, merges and locates them, and determines the viewing angle of the display panel based on the position of each face, thereby outputting an anti-peeping drive signal suitable for the current multi-person application scenario.

[0091] Another embodiment of the present invention provides a display device, which includes the display module proposed in the first aspect of the present invention. The display device of this embodiment can be any product or component with display function, such as electronic paper, mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator; this embodiment does not limit it.

[0092] It is worth noting that the specific implementation of the driving method of the display module in the embodiments of the present invention can be found in the working principle of the display module in the foregoing embodiments, and will not be repeated here.

[0093] In the description of this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0094] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A display module, characterized by The display module comprises a display panel, a timing controller, a driving chip and a processor, The processor outputs a display signal to the driving chip and outputs a privacy protection driving signal to the timing controller in response to a user input operation; The timing controller generates an angle adjustment signal for adjusting the visual angle according to the privacy protection driving signal; The driving chip generates a privacy protection control signal to the display panel according to the display signal and the angle adjustment signal, so that the display panel changes to a privacy protection display state and adjusts the visual angle for display according to the received privacy protection control signal; The angle adjustment signal comprises at least two angle adjustment signals with different pulse widths, and the wider the pulse width, the larger the visual angle on the light-emitting side of the display panel.

2. The display module of claim 1, wherein, The driving chip comprises: a display signal receiving end for receiving the display signal, the display signal comprising a display enable signal and a privacy protection enable signal; an angle adjustment signal receiving end for receiving an angle adjustment signal; a privacy protection control signal conversion module, one end of which is connected with the display signal receiving end and the other end of which is connected with the angle adjustment signal receiving end, when the privacy protection control signal conversion module determines that the received display signal is a privacy protection enable signal, the privacy protection enable signal and the angle adjustment signal are converted to generate a privacy protection control signal; and a privacy protection control signal output end connected with the display panel.

3. The display module of claim 1, wherein, The display panel is a liquid crystal display panel, and the liquid crystal display panel controls the deflection of liquid crystals in a liquid crystal layer to adjust the visual angle in response to the privacy protection control signal.

4. The display module of claim 1, wherein, The timing controller and the driving chip are integrated on the same driving circuit board.

5. The display module of claim 1, wherein the processor is further configured to output a display driving signal to the timing controller, the timing controller generates a display timing signal according to the display driving signal, the driving chip generates a display control signal according to the display enable signal when the received display signal is a display enable signal, so that the display panel displays according to the display timing signal and the privacy protection control signal.

6. A privacy display method of a display module, the method comprising: The method comprises: outputting a display signal and a privacy protection driving signal in response to a user input operation; generating an adjustable angle adjustment signal according to the privacy protection driving signal; generating a privacy protection control signal according to the display signal and the angle adjustment signal; changing to a privacy protection display state and adjusting the visual angle for display according to the received privacy protection control signal; The angle adjustment signal comprises at least two angle adjustment signals with different pulse widths, and the wider the pulse width, the larger the visual angle on the light-emitting side of the display panel.

7. The display method according to claim 6, wherein The display signal comprises a display enable signal and a privacy protection enable signal, The generation of the privacy protection control signal according to the display signal and the angle adjustment signal further comprises: receiving an angle adjustment signal; determining whether the received display signal is a privacy protection enable signal, and when the privacy protection control signal conversion module determines that the received display signal is a privacy protection enable signal, the privacy protection enable signal and the angle adjustment signal are converted to generate a privacy protection control signal.

8. The display method according to claim 6, wherein The method further comprises: outputting a display driving signal; generating a display timing signal according to the display driving signal, determining whether the received display signal is a display enable signal, and generating a display control signal according to the display enable signal when the received display signal is the display enable signal; performing display according to the display timing signal and the anti-peep control signal.

9. A display device, characterized by comprising: The display device comprises the display module according to any one of claims 1-5.

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