CN115171581A

CN115171581A - Display panel, peep-proof display method, device, storage medium and display device

Info

Publication number: CN115171581A
Application number: CN202210749537.2A
Authority: CN
Inventors: 王宇超; 林美虹; 余艳平
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-10-11

Abstract

The application discloses a display panel, a peep-proof display method, peep-proof display equipment, a storage medium and a display device. The display panel includes: a plurality of pixels; the scanning signal control module comprises a plurality of shift register units, and the pixels on the same row are electrically connected with the corresponding shift register units; the driving chip comprises a plurality of data signal output ends, and the pixels in the same column are connected with the corresponding data signal output ends; the driving chip is used for determining a plurality of first pixels and a plurality of second pixels in each image frame in a second mode and providing a first data signal corresponding to a normal image and a second data signal corresponding to an interference image; in unit time, the ratio of the number of image frames displayed by the single pixel as the second pixel to the total number of image frames displayed by the single pixel in unit time is less than or equal to the preset proportion of interference image frames. According to the embodiment of the application, the normal watching of the user is not influenced while the leakage of the image content caused by the candid shooting of other people is avoided.

Description

Display panel, peep-proof display method, device, storage medium and display device

Technical Field

The application belongs to the technical field of display, and particularly relates to a display panel, a peep-proof display method, a peep-proof display device, a peep-proof display equipment, a storage medium and a display device.

Background

Currently, a display panel is generally composed of a plurality of pixels arranged in an array, and the pixels include pixel circuits and light emitting elements. When the display panel normally displays an image, the image may be surreptitiously photographed by others by means of illegal photographing, thereby causing leakage of image contents.

In the existing anti-candid technology, the angle of light rays emitted from a display panel is mainly limited, so that the contraction of a display visual angle is realized, and a display image can be watched only from the front visual angle direction of the display panel.

However, when the display viewing angle is limited, since the display image can be viewed at the front viewing angle position of the display panel, the image content displayed on the display panel can be captured by other people through the front shooting mode, and thus the image content leaks.

Disclosure of Invention

The embodiment of the application provides a display panel, a peep-proof display method, a device, a storage medium and a display device, and can solve the technical problem that display contents cannot be prevented from being captured secretly in the prior art.

In a first aspect, an embodiment of the present application provides a display panel, including:

the pixel array comprises a plurality of pixels, a plurality of pixel array and a plurality of pixel array;

the scanning signal control module comprises a plurality of shifting register units, and the scanning signal ends of the pixels in the same row are electrically connected with the corresponding shifting register units;

the driving chip comprises a plurality of data signal output ends, and the data signal ends of the pixels in the same column are respectively connected with the corresponding data signal output ends;

a driving chip for determining a plurality of first pixels displaying a normal image and a plurality of second pixels displaying an interference image in each image frame in a second mode, and supplying a first data signal to the plurality of first pixels and a second data signal to the plurality of second pixels; the first data signal is a data signal corresponding to a normal image, and the second data signal is a data signal corresponding to an interference image;

in unit time, the ratio of the number of image frames displayed by the single pixel as the second pixel to the total number of image frames displayed by the single pixel in unit time is less than or equal to the preset proportion of interference image frames.

In a second aspect, an embodiment of the present application provides a peep-proof display method, which is applied to the display panel, and the method includes:

in a second mode, acquiring a preset interference pixel proportion;

determining a plurality of first pixels displaying a normal image and a plurality of second pixels displaying an interference image in each image frame according to the proportion of the interference pixels; in unit time, the ratio of the number of image frames displayed by a single pixel as a second pixel to the total number of image frames displayed by the single pixel in unit time is less than or equal to the preset proportion of interference image frames;

the method includes providing a first data signal to a plurality of first pixels and providing a second data signal to a plurality of second pixels according to a corresponding plurality of first pixels and a corresponding plurality of second pixels in each image frame.

In a third aspect, an embodiment of the present application provides a privacy protection display device, where the privacy protection display device includes: a processor and a memory storing computer program instructions;

the processor implements the above-described privacy display method when executing the computer program instructions.

In a fourth aspect, an embodiment of the present application provides a computer storage medium, where computer program instructions are stored on the computer storage medium, and when the computer program instructions are executed by a processor, the computer storage medium implements the above-mentioned peep-proof display method.

In a fifth aspect, an embodiment of the present application provides a display device, which includes the above display panel.

Compared with the prior art, the display panel, the peep-proof display method, the device, the storage medium and the display device provided by the embodiment of the application can determine the plurality of first pixels and the plurality of second pixels in each image frame in the second mode, provide the corresponding first data signals to the first pixels and provide the corresponding second data signals to the second pixels. The first pixels may display a normal image under the first data signal, and the second pixels may display an interference image under the second data signal. The ratio of the number of image frames in which a single pixel in the display panel is the second pixel to the number of total image frames it displays in the unit time may be set to be equal to or less than a preset interference image frame ratio. When the secret photography is carried out by others, the shot image is formed by mixing the normal image and the interference image, thereby hiding partial content of the normal image and preventing the leakage of the image content. By setting an appropriate proportion of the disturbing pixels, the proportion of the image frame of which the single pixel displays the disturbing image in unit time to the total image frame displayed therein in unit time can be made lower than the degree recognizable by the human eye. Due to the influence of the effect of the persistence of vision of human eyes, the pixels displaying the interference images are difficult to recognize by the human eyes and cannot influence the normal watching of a user, when the user takes a candid photograph by other people, the photographed images are mixed images formed by mixing the normal images displayed by the first pixels and the interference images displayed by the second pixels, and the interference images can effectively shield or neutralize the image contents of the normal images, so that the leakage of the image contents caused by the candid photograph by other people is avoided.

Optionally, the interference image is not related to the content of the normal image, for example, when the interference image is a fixed image, the display panel displays the interference image in the second data signal by using the plurality of second pixels in the second mode, and compared with the normal image displayed in the first mode, the pixel positions corresponding to the plurality of second pixels in the second mode do not display the image content of the normal image any more, but display the image content of the interference image, thereby implementing the shielding coverage on the normal image.

Optionally, when the interference image is generated after the normal image is subjected to parameter adjustment, the interference image and the normal image have a correlation, for example, the interference image may be an image generated after parameters such as RGB color values, luminance values, or color coordinate values of the normal image are adjusted. In the second mode, in the two image frames, because the normal image and the interference image are superposed at the same position, even if a candid camera exposes the candid camera for a long time, the pixels of the two image frames are neutralized by color or brightness, so that the image content displayed by the normal image cannot be identified in the mixed image obtained by candid camera.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram illustrating a portion of pixels of a display panel receiving a first data signal in a first mode according to an embodiment of the present application;

FIG. 3 is the image content shown by a portion of the pixels in FIG. 2;

FIG. 4 is a diagram illustrating a portion of pixels of a display panel receiving a first data signal and a second data signal in a second mode according to an embodiment of the present disclosure;

FIG. 5 is the image content shown by a portion of the pixels in FIG. 4;

FIG. 6 is a normal image in an embodiment of the present application;

FIG. 7 is a reverse color image in an embodiment of the present application;

FIG. 8 is a blended image of a normal image and a reverse image in an embodiment of the present application;

FIG. 9 is identification information of an interference image in an embodiment of the present application;

FIG. 10 is a blended image of a normal image and an interference image in an embodiment of the present application;

fig. 11 is a schematic flow chart illustrating a privacy-preserving display method according to an embodiment of the present disclosure;

fig. 12 is a schematic flowchart of a privacy display method according to another embodiment of the present application;

fig. 13 is a schematic hardware structure diagram of a privacy display apparatus according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a display device according to an embodiment of the present application.

Detailed Description

Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The embodiments will be described in detail below with reference to the accompanying drawings.

An existing display panel product generally includes a plurality of pixels arranged in an array, where each pixel may include a pixel circuit and a light emitting element, and the pixel circuit may provide a driving current for the light emitting element to make the light emitting element emit light.

When the display panel normally displays image content, the image content may be candid by others in front of the display panel by means of illegal shooting, thereby causing leakage of the image content. In the existing anti-candid technology, the emergent angle of light emitted by the display panel is mainly limited, so that the display visual angle is limited, and the image content displayed by the display panel can be viewed only at the front angle of the display panel.

However, even if the display angle of view is narrowed, when another person is located at a normal angle position, the image content displayed on the display panel can be captured by way of frontal shooting, resulting in leakage of the image content.

In order to solve the above technical problem, embodiments of the present application provide a display panel, a peep-proof display method, a device, a storage medium, and a display apparatus. The following first describes a display panel provided in an embodiment of the present application.

Fig. 1 illustrates a schematic structural diagram of a display panel according to an embodiment of the present application. The display panel includes a scan signal control module 30, a driving chip 20, and a plurality of pixels 10.

The plurality of pixels 10 in the display panel may be arranged in an array.

The scan signal control module 30 may include a plurality of shift register units. In the plurality of pixels 10, the scan signal terminals of the pixels 10 located in the same row may be electrically connected to the corresponding shift register units. That is, each shift register unit may be electrically connected to a corresponding row of pixels 10.

The driving chip 20 may include a plurality of data signal output terminals, and the data signal terminals of the pixels 10 located in the same column among the plurality of pixels 10 may be connected to the corresponding data signal output terminals. That is, the data signal terminals of the pixels 10 in the same column are connected to the same data signal output terminal.

It can be understood that, in order to reduce the number of ports of the data signal output terminal of the driving chip 20 or the number of signal traces in the data fan-out area of the display panel, a plurality of multiplexers MUX may be further disposed in the display panel, and the multiplexers MUX may gate one data signal output terminal of the driving chip 20 to the plurality of pixel columns, respectively, so as to provide data signals for the plurality of pixel columns through one data signal output terminal.

The display panel may perform display of image contents in a first mode and a second mode. In the first mode, the display panel may normally display image content. In the second mode, the display panel may display the normal image and the interference image by controlling some of the pixels 10 and some of the pixels 10 such that the displayed actual image is a mixture of the normal image and the interference image. In the second mode, even if other people shoot the image content displayed by the display panel through the shooting equipment, the shot image is formed by mixing the normal image and the interference image, and the interference image part in the actual image can shield, cover or neutralize the specific image content, so that the candid cannot shoot the complete normal image content, the candid can be effectively prevented, and the leakage of the image content can be avoided.

It is understood that the interference image may be image content unrelated to the normal image, or may be generated from the normal image after parameter adjustment.

Optionally, the interference image is not related to the content of the normal image, when the interference image is a fixed image, the display panel displays the interference image in the second data signal by using the plurality of second pixels in the second mode, and compared with the normal image displayed in the first mode, the pixel positions corresponding to the plurality of second pixels in the second mode do not display the image content of the normal image any more, but display the image content of the interference image, thereby implementing the mask coverage on the normal image.

Optionally, when the interference image is generated by a normal image after parameter adjustment, the interference image has a correlation with the normal image, for example, the interference image may be an image generated by adjusting parameters such as an RGB color value, a brightness value, or a color coordinate value of the normal image. In the second mode, in the two image frames, because the normal image and the interference image are superposed at the same position, even if a candid camera exposes the candid camera for a long time, the two image frames will be neutralized in color or brightness, so that the image content displayed by the normal image cannot be identified in the mixed image obtained by candid camera.

In each image frame in the second mode, the driving chip 20 may determine a plurality of first pixels and a plurality of second pixels in the image frame. The first pixel and the second pixel are both part of a plurality of pixels 10 in the display panel. And the first pixel and the second pixel do not coincide. That is, in a single image frame, when a certain pixel 10 emits light, the pixel 10 is one of the first pixel and the second pixel. The total number of pixels 10 emitting light in the image frame is the sum of the number of first pixels and the number of second pixels.

In each image frame, the first pixel may display a normal image and the second pixel may display an interference image. The driving chip 20 may provide the corresponding first data signal to each first pixel and provide the corresponding second data signal to each second pixel after determining the corresponding first pixels and second pixels in the image frame.

It will be appreciated that the drive signal may determine a normal image and an interference image for each image frame. When a certain pixel 10 in the image frame is determined to be a first pixel, a corresponding data signal is determined according to a target display parameter corresponding to the pixel 10 in a normal image, and the data signal is a first data signal corresponding to the first pixel. Correspondingly, when a certain pixel 10 in the image frame is determined to be a second pixel, a corresponding data signal is determined according to the target display parameter corresponding to the pixel 10 under the interference image, and the data signal is a second data signal corresponding to the second pixel.

Since each image frame is driven line by line in a line scanning driving manner. Taking one row of pixels 10 as an example, the driving chip 20 may determine first pixels and second pixels in the row of pixels 10, and output corresponding first data signals through data signal output terminals corresponding to the first pixels and output corresponding second data signals through data signal output terminals corresponding to the second pixels when the shift register units corresponding to the row of pixels 10 output scanning signals. A number of first pixels in the row of pixels 10 display a normal image and a number of second pixels display an interference image. For each row of pixels 10, the driving chip 20 may provide a first data signal to a first pixel in each row of pixels 10 and provide a second data signal to a second pixel in each row of pixels 10 when the shift register unit corresponding to each row of pixels 10 outputs a scan signal. In the image frame, each first pixel realizes the display of a normal image through the corresponding first data signal, and each second pixel realizes the display of an interference image through the corresponding second data signal.

It is to be understood that in each image frame in the second mode, there are a plurality of second pixels, which receive the respective second data signals, so that the interference image is displayed at pixel positions corresponding to the plurality of second pixels. When someone shoots the display area of the display panel, the image content displayed at the pixel position corresponding to each second pixel in the shot image frame is not a normal image but an interference image. Therefore, even if others shoot the display panel, the complete normal image cannot be shot, and the leakage of the image content is avoided.

Referring to fig. 2 and fig. 3, in an example, fig. 2 shows a portion of pixels 10 of a display panel in a first mode, where the portion of pixels 10 all receive a corresponding first data signal. Fig. 3 shows a normal image displayed by the portion of the pixels 10 under the first data signal.

Referring to fig. 4 and fig. 5, in another example, fig. 4 shows a portion of the pixels 10 of the display panel in the second mode, where the portion of the pixels 10 includes a plurality of first pixels and a plurality of second pixels, where the first pixels receive corresponding first data signals, and the second pixels receive corresponding second data signals. Fig. 5 shows a mixed image of a normal image and an interference image displayed by the part of the pixels 10 under the first data signal and the second data signal.

By comparing the image contents shown in fig. 3 and 5, it can be determined that the display panel can display the corresponding interference image through the plurality of second pixels in the second mode, so that a large difference exists between the mixed image formed by the normal image and the interference image and the original normal image, and even if another person shoots the display panel, the complete normal image cannot be shot.

For a single pixel in the display panel, the ratio of the number of image frames displayed as second pixels in a unit time to the total number of image frames displayed in the unit time should be set to be equal to or less than a preset interference image frame ratio. The proportion of the interference image frames refers to a ratio of the number of the image frames of the interference image displayed by the second pixel to the number of the total image frames on the premise that human eyes cannot perceive the interference image. When the ratio of the image frame displayed by the second pixel of the single pixel in the display panel to the total image frame is smaller than or equal to the ratio of the interference image frame, human eyes can not perceive that the single pixel displays the interference image all the time.

For example, when the preset ratio of the interference image frames is 1.. It can be known through calculation that when the unit time is 1 second, the refresh frequency of the display panel is 60Hz, and the image frame displayed as the second pixel by a single pixel in the unit time is 5, the ratio of the image frame displayed as the second pixel to the total image frame is 1. And when the image frame displayed as the second pixel in 1 second by a single pixel is 6, the ratio of the image frame displayed as the second pixel to the total image frame is 1. Therefore, when the preset ratio of the interference image frames is 1.

It is understood that, when the preset ratio of the interference image frames is 1. Similarly, in the case where the preset ratio of the interference image frames is not changed, if the refresh frequency of the display panel is 144Hz, the number of image frames displayed by a single pixel as the second pixel should be set to be 12 or less per one second of unit time.

It should be noted that, because the human eye has a phenomenon of persistence of vision, that is, when the human eye observes a scene, a light signal is transmitted to a brain nerve, a short period of time is needed, after the action of light is finished, the visual image does not disappear immediately, the residual vision is called "afterimage", and the phenomenon of vision is called "persistence of vision". Typically the time for persistence of vision of the human eye is approximately between 0.1s and 0.4 s. That is, the content displayed by the normal image will stay in the human eye for about 0.1s-0.4s, and when the display time of the interference image is shorter than the time of the stay of the human eye, the interference image will not be perceived by the human eye, so that the normal viewing of the normal image by the human eye will not be affected. For example, when the refresh frequency of the display panel exceeds 11Hz, the display duration of each image frame is about 0.09s, and if 11 image frames are set to 10 normal images and 1 interference image, for example, a single pixel is displayed, the human eye does not perceive that the single pixel displays the interference image because the display duration of the interference image is lower than the time of the human eye's persistence of vision. Correspondingly, when the refreshing frequency is 48Hz, the number of image frames of the interference image is within 4 frames, the display time length of the interference image does not exceed 0.1s, and the normal viewing experience is not influenced; when the refreshing frequency is 60Hz, the number of image frames of the interference image is within 5 frames, and the display time length of the interference image does not exceed 0.1s, so that the normal viewing experience is not influenced. According to the actual refreshing frequency of the display panel, the corresponding proportion of the interference image frames can be set, so that the display time of the image frames of the interference images displayed by the single pixel in the display panel in unit time is shorter than the time of the visual persistence of human eyes, and the human eyes are prevented from perceiving the interference images.

It is understood that the number of image frames displayed by a single pixel as the second pixel may also be 0 per unit time. That is, in the second mode, a part of the pixels 10 may continuously display the normal image as the first pixels without displaying the interference image as the second pixels.

In this embodiment, the display panel may determine the plurality of first pixels and the plurality of second pixels in each image frame when displaying the image frame in the second mode. The driving chip 20 of the display panel may provide a corresponding first data signal or second data signal depending on whether the pixel 10 belongs to the first pixel or the second pixel, so that the first pixel displays a normal image in the image frame and the second image displays an interference image in the image frame. And the ratio of the number of the image frames of the single pixel serving as the second image to the total number of the image frames in the unit time in the display panel is not more than the preset proportion of the interference image frames, so that the single pixel cannot be perceived by human eyes when displaying the interference image, and the normal watching of the display content by the human eyes is not influenced. And for the shooting device, the shot image is a mixed image formed by mixing the normal image displayed by the first pixel and the interference image displayed by the second pixel, and the interference image can effectively shield or neutralize the image content of the normal image, so that the leakage of the image content caused by the candid shooting of other people is avoided.

In some embodiments, in each image frame in the second mode, the number of first pixels and the number of second pixels may be set to satisfy the following first formula:

1/3>n/m>1/10；

wherein m is the number of the first pixels, and n is the number of the second pixels. That is, in each image frame, the ratio of the number of second pixels displaying the interference image to the number of first pixels displaying the normal image may be set to range from one tenth to one third.

When the ratio of the number of the second pixels to the number of the first pixels is one third, it indicates that the number of the second pixels is one fourth of all the lighted pixels in the image frame. And when the ratio of the number of the second pixels to the number of the first pixels is one tenth, the number of the second pixels is one eleventh of all the luminous pixels in the image frame. When the ratio of the number of the first pixels to the number of the second pixels is within the range, the interference image displayed by the second pixels in the image frame can effectively perform shielding coverage and neutralization influence on the content displayed by the normal image, so that the image content of the normal image is prevented from leaking during candid shooting.

It can be understood that, in a single image frame, if the number of second pixels displaying the interference image is larger, the normal image content included in the image content captured by the capturing device is smaller, and the anti-candid effect is better.

In a single image frame, the ratio of the number of second pixels to the number of first pixels should be at least greater than 1. When the ratio of the number of second pixels to the number of first pixels reaches 1. And when the ratio of the number of the second pixels to the number of the first pixels is greater than or equal to 1:3, the ratio of the interference image in the corresponding image frame to the total display area is relatively large, and in this case, in order to avoid that the single pixel displays the interference image as the second pixel for too long time and is perceived by human eyes to display the interference image, the number of the second pixels needs to be reduced in other image frames. When the number of the second pixels in the other image frames is small, the formed interference image cannot effectively shield or neutralize the normal image, which will result in the reduction of the anti-candid effect in the other image frames.

In some embodiments, in the at least two image frames in the second mode, the at least one first pixel in the previous image frame is changed to the second pixel in the subsequent image frame. I.e. at least one pixel displays a normal image in a previous image frame and an interference image in a subsequent image frame.

Accordingly, in at least two image frames in the second mode, at least one second pixel in a previous image frame is changed into a first pixel in a subsequent image frame. That is, at least one pixel displays an interference image in a previous image frame and a normal image in a subsequent image frame.

It can be understood that, in the above two conversion methods of the previous and subsequent image frames, when at least one of the two conversion methods is satisfied, the display area of the interference image of the previous image frame is different from the display area of the interference image of the subsequent image frame.

The purpose is to prevent the image content from being shot by a candid photographer and not to influence the normal watching of the image content displayed by the display panel by human eyes. The time during which a single pixel within the display panel displays the interference image as a second pixel should be below the time frame of the human eye's persistence of vision. When the time for displaying the interference image by using the single pixel as the second pixel is within the time range of the persistence of vision of human eyes, the content of the interference image can be observed by human eyes, so that the normal image can be observed.

It will be appreciated that in order to make the time for which a single pixel is displayed as a second pixel less than the duration of the persistence of vision of the human eye, the single pixel needs to be switched between the first pixel and the second pixel in different image frames so that none of the pixels causes the disturbing image to be perceived by the human eye because the time for which the disturbing image is displayed as a second pixel is too long. Therefore, at least two image frames exist in the second mode, so that there is a difference in the number of second pixels or the pixel position of each second pixel between the two image frames.

When at least one first pixel in the previous image frame is changed into a second pixel in the next image frame, the pixel position shows that a normal image and an interference image are respectively displayed in the two image frames before and after the pixel position, and the displayed image is changed at least on the pixel position between the two image frames. Similarly, when at least one second pixel in the previous image frame becomes the first pixel in the next image frame, this pixel position indicates that the interference image and the normal image are displayed in the two image frames before and after, respectively, and the displayed image also changes at least at this pixel position between the two image frames.

It should be noted that the at least two image frames in the second mode may be two adjacent image frames or two non-adjacent image frames. For example, when the refresh frequency of the display panel is 120Hz, even if the number and position of the first pixels and the number and position of the second pixels do not change in 2 consecutive image frames, since the display duration of the 2 image frames is less than 0.02s, human eyes cannot perceive the existence of the interference pixels even if the position and number of the second pixels do not change. That is, when the position and the number of each second pixel in the plurality of consecutive image frames are not changed, if the display duration of each second pixel in the plurality of image frames is shorter than the persistence duration of vision of human eyes, the second pixel is not perceived by human eyes.

It will be appreciated that the number of image frames displayed when the number and position of the second pixels are changed may also be adjusted according to the refresh frequency of the display panel. For example, when the refresh frequency of the display panel is low, the number and the position of the second pixels may be changed in every two adjacent image frames, so that the number and the position of the second pixels are not completely consistent in any two adjacent image frames. When the refresh frequency of the display panel is high, the number and the position of the second pixels can be changed at intervals of a plurality of image frames, the number and the position of the second pixels in the image frames are not changed, and the driving chip can provide second data signals for the same plurality of second pixels in the image frames, so that the power consumption of the display panel is saved.

In some embodiments, in the at least two image frames in the second mode, all of the second pixels in a previous image frame become the first pixels in a subsequent image frame. That is, the pixels in the previous image frame that display the interference image as the second pixels become to display the normal image in the subsequent image frame.

It is understood that the two previous and next image frames may be two adjacent image frames, or two non-adjacent image frames. A plurality of pixel positions in the previous image frame where the interference image is displayed become to display the normal image in the subsequent image frame. Accordingly, among a plurality of first pixels displaying a normal image in a previous image frame, a part of the first pixels become second pixels in the next image frame, and an interference image is displayed.

In some embodiments, the interference image may be a reverse image obtained by performing a reverse color process on the normal image.

When the candid photographer shoots through the shooting equipment, the shot image content is an image formed by mixing a normal image and a reverse color image of the normal image. For each local area of the display panel, the light emitting colors of the pixels displaying the normal image and the pixels displaying the reverse color image around the pixels are neutralized, so that the image content displayed by each local area in the shot image cannot be identified in the reverse color, and the image content cannot be acquired from the shot image.

It is to be understood that the above-mentioned color inversion process may be a color inversion process of the RGB color values displayed by the pixel in the normal image. For example, if a pixel in the normal image displays an RGB color value of (R, G, B), the pixel in the reverse image displays a color value of (255-R, 255-G, 255-B).

Referring to fig. 6 to 8, fig. 6 is a corresponding normal image when a certain image frame is displayed on the display panel. And performing reverse color processing on the RGB color value of each pixel in the normal image to obtain a reverse color image corresponding to the image frame displayed in fig. 7. After determining the first and second pixels of the plurality of pixels, the display panel may provide a first data signal corresponding to a normal image according to a pixel position of each of the first pixels and a second data signal corresponding to a counter image according to a pixel position of each of the second pixels. The image displayed by the display panel is a mixed image of the normal image and the reverse image shown in fig. 8. It can be understood that, in the mixed image shown in fig. 8, due to the neutralization of the normal image and the reverse image thereof, the image content in the normal image can be effectively masked, thereby preventing the image content from leaking.

In some embodiments, the interference image may include identification information, and the identification information may include at least one of a character, a picture, and a pattern. The identification information may be used to indicate that the image was captured in an abnormal manner. For example, the identification information may include the producer of the displayed normal image to indicate the owner of the image. The identification information may include text content or watermark content indicating that the image was obtained by unauthorized shooting, so that another person can recognize that the image was obtained by unauthorized shooting from the display area of the interference image after viewing the image formed by mixing the normal image and the interference image.

As shown in fig. 9, after the watermark content is formed by at least one of characters, numbers or patterns, the watermark content may be used as identification information, and a plurality of identification information may be uniformly arranged in the interference image. In the second mode, the display panel may provide the second data signal corresponding to the interference image according to pixel positions corresponding to the plurality of second pixels in each pixel frame, so that each second pixel displays part of the identification information at the corresponding pixel position. As shown in fig. 10, the content of the image displayed in the image frame by the display panel is the identification information displayed by each second pixel, so that when viewing the image obtained by the candid shooting, others can read the content expressed by the identification information.

In the above-described embodiment, the interference image may include a plurality of identification information arranged uniformly or a plurality of identification information arranged irregularly.

Since the interference image is displayed by only a part of the second pixels in the display panel, the distribution positions of the respective second pixels may be uniformly distributed, may be intensively distributed, or may be randomly distributed. The identification information in the interference images is only arranged at a fixed position, and when no second pixel exists in the area of the fixed position or the number of the second pixels is small, the content expressed by the identification information cannot be accurately identified from the shot images. The interference image is composed of a plurality of identification information which are uniformly or irregularly arranged, so that the identification information can be displayed in the image shot by the candid camera when the number and the position of the second pixels are constantly changed.

It is understood that, if the number of the second pixels in a single image frame is small, when the second pixels are not distributed in a certain area in a concentrated manner, but distributed, the human eye may not recognize the identification information from the interference image displayed by the distributed second pixels in the captured image. Therefore, in order to enable the human eye to recognize the identification information from the interference image portion in the captured image, it is necessary to set a lower limit of the ratio of the second pixel to the total pixel or the ratio of the second pixel to the first pixel in a single image frame. For example, the lower limit of the ratio of the number of the second pixels to the number of the first pixels may be set to one tenth, that is, the number of the second pixels should be at least one eleventh of the pixels emitting light in the display panel, so as to avoid that the identification information cannot be recognized from the interference image displayed by the second pixels due to the small number of the second pixels.

The embodiment of the application also provides an anti-peeping display method which is applied to the display panel in the embodiment. Fig. 11 shows a schematic flow chart of a privacy display method according to an embodiment of the present application. The method comprises the following steps:

s1110, in a second mode, acquiring a preset interference pixel proportion;

s1120, determining a plurality of first pixels for displaying a normal image and a plurality of second pixels for displaying an interference image in each image frame according to the proportion of the interference pixels; in unit time, the ratio of the number of image frames displayed by a single pixel as a second pixel to the total number of image frames displayed by the single pixel in the unit time is less than or equal to a preset interference image frame ratio;

s1130, according to a plurality of first pixels and a plurality of second pixels corresponding to each image frame, a first data signal is provided to the plurality of first pixels and a second data signal is provided to the plurality of second pixels.

In this embodiment, the display panel may determine the first pixel and the second pixel in each image frame according to a preset ratio of the interference pixels in the second mode, and provide the first pixel with a corresponding first data signal and provide the second pixel with a corresponding second data signal in the image frame, so that the first pixel displays a normal image and the second pixel displays an interference image in the image frame. And the ratio of the number of the image frames of the single pixel serving as the second image to the total number of the image frames in the unit time in the display panel is not more than the preset proportion of the interference image frames, so that the single pixel cannot be perceived by human eyes when displaying the interference image, and the normal watching of the display content by the human eyes is not influenced. And for the shooting device, the shot image is a mixed image formed by mixing the normal image displayed by the first pixels and the interference image displayed by the second pixels. In the mixed image, the interference image can effectively shield or neutralize the image content of the normal image, thereby avoiding the leakage of the image content when other people take candid pictures.

In S1110, the display panel may normally display image content in the first mode. In the second mode, the display panel can acquire a preset interference pixel proportion, and control part of pixels to display a normal image and part of pixels to display an interference image according to the interference pixel proportion.

It can be understood that the proportion of the interference pixels may be preset when the display panel leaves a factory, or may be adjusted when a user triggers a corresponding adjustment instruction.

In S1120, after acquiring the preset interference pixel ratio, the driving chip of the display panel may determine the number and the position of the plurality of first pixels and the number and the position of the plurality of second pixels in each image frame according to the interference pixel ratio. The plurality of first pixels may display a normal image, and the plurality of second pixels may display an interference image.

The reason why the display panel displays the mixed image formed by the normal image and the interference image in the second mode is to prevent the contents of the image captured by the photographer from being captured by the other person, so that the normal image is shielded or neutralized by the interference image, and the contents of the image are not leaked. It is necessary to prevent the leakage of image content due to candid photography and avoid affecting the normal viewing of the image content displayed on the display panel by human eyes. Due to the phenomenon of human visual persistence, in unit time, if the number of image frames displayed by a single pixel as a second pixel is low, human eyes cannot perceive the interference image. When the number of image frames displayed by a single pixel as a second pixel is high, the human eye will perceive the interference image, thereby influencing normal viewing. Therefore, the ratio of the number of image frames displayed by a single pixel in the display panel as a second pixel to the total number of image frames displayed by the single pixel in the display panel in the unit time should be less than or equal to the preset ratio of the interference image frames. The proportion of the interference image frame can be adjusted according to the time range of the visual persistence of human eyes and the current refreshing frequency of the display panel, so that when a single pixel in unit time is used as a second pixel to display the interference image, the interference image cannot be perceived by human eyes.

As an alternative embodiment, referring to fig. 12, the step S1120 may include:

s1210, dividing a plurality of pixels of the display panel into a plurality of pixel groups according to a preset pixel combination mode;

and S1220, determining the number of the first pixels and the number of the second pixels in each pixel group according to the interference pixel proportion.

In this embodiment, the display panel may divide the plurality of pixels into a plurality of pixel groups according to a preset pixel combination manner, and respectively determine the number of the first pixels and the number of the second pixels in each pixel group according to the ratio of the interference pixels.

In S1210, the display panel may determine the first pixel and the second pixel in a single image frame by dividing a plurality of pixels of the display panel into a plurality of pixel groups according to a preset pixel combination manner and respectively dividing the plurality of pixels in each pixel group into the first pixel and the second pixel.

As an alternative embodiment, the step S1210 may include:

dividing i pixels of the same row into a pixel group; i is a positive integer greater than or equal to 4;

or dividing j pixels in the same column into a pixel group; j is a positive integer greater than or equal to 4;

or dividing k × p pixels of k rows and p columns into a pixel group; k. p is a positive integer of 2 or more.

In this embodiment, the preset pixel combination manner may be at least one of the following three division manners:

i) Dividing i pixels of the same row into a pixel group; i is a positive integer greater than or equal to 4;

in this division manner, the display panel may divide a plurality of pixels in the same row into a pixel group, one or more pixels in the pixel group may serve as the second pixels, and other pixels serve as the first pixels. And the position and the number of the second pixels in the pixel group can be changed in different image frames, so that the condition that the human eyes perceive the interference image due to the fact that the single pixel in the pixel group is used as the second pixel to display the interference image for too long is avoided.

It is understood that when a single pixel group includes a second pixel, the number of pixels in the pixel group may be set to be greater than or equal to 4, i.e., i ≧ 4, where the proportion of the second pixel in the pixel group to the total pixels is less than or equal to one-fourth. At this time, for the mixed image displayed by the display panel, the proportion of the interference image displayed by the second pixel is less than or equal to one fourth, so that the situation that the proportion of the second pixel in some image frames is too large to cause less second pixels in other image frames can be avoided, and the interference image displayed by the second pixel in each image frame can achieve the shielding or neutralizing effect on the normal image.

ii) dividing j pixels of the same column into one pixel group; j is a positive integer greater than or equal to 4;

similar to the above dividing manner, the display panel may divide a plurality of pixels in the same column into a pixel group, where one or more pixels in the pixel group may be used as the second pixels, and other pixels may be used as the first pixels. Similarly, when a single pixel group includes a second pixel, the number of pixels of the pixel group may be set to be greater than or equal to 4, that is, j is greater than or equal to 4, and at this time, for the mixed image displayed by the display panel, the display area of the interference image displayed by the second pixel is less than or equal to a quarter of the entire display area, which does not result in too small proportion of the second pixel in some image frames, so that the interference image displayed by the second pixel in each image frame can achieve the effect of shading or neutralizing the normal image.

iii) Dividing k × p pixels of k rows and p columns into a pixel group; k. p is a positive integer of 2 or more.

In this division manner, the display panel may divide a pixel matrix formed by k × p pixels in k rows and p columns into a pixel group, where one or more pixels in the pixel group may serve as the second pixels, and other pixels serve as the first pixels. Similar to the reason for setting the number of the pixel groups, when a single pixel group includes one second pixel, the number of the pixels of the pixel group can be set to be greater than or equal to 4, and because a matrix dividing mode of k rows and p columns is adopted, when k and p are positive integers greater than or equal to 2, namely k is greater than or equal to 2 and p is greater than or equal to 2, the number of the pixels in the formed pixel matrix is greater than or equal to 4, at this time, for a mixed image displayed by the display panel, the display area of an interference image displayed by the second pixel is less than or equal to one fourth of the whole display area, the proportion of the second pixel in some image frames is not too small, and the interference image displayed by the second pixel in each image frame can achieve the shielding or neutralizing effect on a normal image.

The above-described pixel combination methods may be applied alone or in combination. That is, each pixel in the display panel may be divided into pixel groups by one of the above-described plural pixel combination methods, or may be divided into pixel groups by two or three combinations.

In S1220, after the pixel groups of the plurality of pixels in the display panel are divided according to the preset pixel combination manner, the number of the first pixels and the number of the second pixels in each pixel group may be determined according to the preset interference pixel ratio.

It is understood that after determining the number of the first pixels and the number of the second pixels in each pixel group, the positions of the second pixels in different image frames may be switched, so that the number and the positions of the second pixels in the same pixel group in different image frames are unchanged. For example, when 6 pixels on the same line are divided into one pixel group, if the number of second pixels in the pixel group is determined to be 1, the pixel position of the second pixel may be changed in different image frames. The pixel position of the second pixel may be shifted in a manner that the second pixel is cyclically shifted to the left or to the right every one or more image frames, or the second pixel is randomly shifted among six pixel positions.

In the above embodiment, it can be understood that, in different image frames, the proportion of a plurality of pixels is not changed, and the number of second pixels in the same pixel group is not changed, and at this time, the pixel position of only the second pixels in different image frames is changed. In different image frames, the proportion of the plurality of interference pixels is also changed, so that the number of the second pixels in the same pixel group is also changed along with the proportion of the interference pixels, and at the moment, the number of the second pixels in the same pixel group is also changed correspondingly in different image frames.

As an alternative embodiment, the step S1220 may include:

and determining the number of the first pixels and the number of the second pixels according to the number of the pixels in each pixel group, so that the ratio of the number of the second pixels to the number of the first pixels is equal to the proportion of the interference pixels.

In this embodiment, after determining the proportion of the interference pixels, the number of the first pixels and the number of the second pixels may be determined according to the number of pixels in each pixel group, so that the ratio of the number of the second pixels to the number of the first pixels is equal to the proportion of the interference pixels. For example, when the number of pixels in a certain pixel group is 6 and the ratio of the number of interference pixels is 1, it may be determined that the number of first pixels is 5 and the number of second pixels is 1, and the ratio of the number of second pixels to the number of first pixels is equal to the ratio of interference pixels. In another example, when the number of pixels in the pixel group is 12 and the ratio of interference pixels is 1.

It is to be understood that the above-mentioned ratio of the interference pixels may be a ratio of the first pixels to the total number of pixels of the pixel group, or the above-mentioned ratio of the interference pixels may also be a ratio of the second pixels to the total number of pixels of the pixel group. According to the specific correspondence expressed by the proportion of the interference pixels, the number of the first pixels and the number of the second pixels can be respectively determined according to the total number of the pixels in the pixel group.

In S1130, after determining a plurality of corresponding first pixels and a plurality of second pixels in each image frame, the display panel may provide the respective first data signals to the plurality of first pixels and the respective second data signals to the plurality of second pixels, respectively.

The line-by-line driving is carried out on the pixels of each line in each image frame in a line scanning driving mode. Taking one row of pixels as an example, the driving chip of the display panel may determine the first pixels and the second pixels in the row of pixels, and output corresponding first data signals through the data signal output terminals corresponding to the first pixels and output corresponding second data signals through the data signal output terminals corresponding to the second pixels when the shift register units corresponding to the row of pixels output the scan signals. A plurality of first pixels in the row of pixels display a normal image and a plurality of second pixels display an interference image. For each row of pixels, the driving chip may provide a first data signal to a first pixel in the row of pixels and provide a second data signal to a second pixel in the row of pixels when the shift register unit corresponding to each row of pixels outputs a scan signal.

As an alternative embodiment, the display panel may be provided with a camera area for accommodating the camera, the camera area is provided with a front camera, and before S1110, the method may further include:

responding to a peep-proof instruction triggered by a user, and entering a second mode;

or when the number of the faces recognized by the front camera is greater than 1, entering a second mode.

In this embodiment, a camera area for accommodating the camera may be provided on the display panel, and the camera area may be provided with a front camera, and the front camera may capture the light emitting direction of the display panel. The display panel may treat each pixel in each image frame as a first pixel in the first mode, thereby normally displaying image content. In the first mode, the display panel may enter a second mode when a preset condition is satisfied, and determine respective pixels in each image frame as first pixels or second pixels in the second mode to display a normal image through the first pixels and an interference image through the second pixels.

It is understood that the condition for entering the second mode may be that the user actively controls the display panel to enter the second mode, or that the display panel enters the second mode when detecting that the corresponding condition is currently satisfied. For example, the user may control the display panel to enter the second mode by triggering a privacy instruction, and the display panel may enter the second mode in response to the privacy instruction.

The display panel can also shoot the light-emitting direction of the display panel through the front camera in a non-second mode so as to shoot a user watching the display panel. In the shooting process, the display panel can also perform face recognition according to the shot images and determine the number of faces in the images. When the number of the recognized human faces is more than 1, the display panel shows that two or more viewers are in front of the display panel. At this moment, the display panel can enter a second mode, so that under the condition that the normal watching experience of a viewer is not influenced, the display panel can avoid the condition that the display content leaks due to the fact that a candid person takes candid pictures on the image content of the display panel by displaying the mixed image of the normal image and the interference image.

Fig. 13 shows a hardware structure schematic diagram of the peep-proof display device provided in the embodiment of the present application.

The privacy display device may include a processor 1301 and a memory 1302 that stores computer program instructions.

Specifically, the processor 1301 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured to implement one or more Integrated circuits of the embodiments of the present Application.

Memory 1302 may include mass storage for data or instructions. By way of example, and not limitation, memory 1302 may include a Hard Disk Drive (HDD), a floppy Disk Drive, flash memory, an optical Disk, a magneto-optical Disk, magnetic tape, or a Universal Serial Bus (USB) Drive or a combination of two or more of these. Memory 1302 may include removable or non-removable (or fixed) media, where appropriate. Memory 1302 may be internal or external to the privacy display device, where appropriate. In a particular embodiment, the memory 1302 is non-volatile solid-state memory.

The memory may include Read Only Memory (ROM), random Access Memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical, or other physical/tangible memory storage devices. Thus, in general, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software comprising computer-executable instructions and when the software is executed (e.g., by one or more processors), it is operable to perform operations described with reference to the methods according to an aspect of the present disclosure.

The processor 1301 reads and executes the computer program instructions stored in the memory 1302 to implement any one of the above embodiments of the privacy display method.

In one example, the privacy display device can also include a communications interface 1303 and a bus 1310. As shown in fig. 13, the processor 1301, the memory 1302, and the communication interface 1303 are connected via a bus 1310 to complete communication therebetween.

The communication interface 1303 is mainly used to implement communication between modules, apparatuses, units and/or devices in this embodiment of the application.

The bus 1310 includes hardware, software, or both that couple the components of the privacy display device to each other. By way of example, and not limitation, a bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hypertransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus or a combination of two or more of these. Bus 1310 may include one or more buses, where appropriate. Although specific buses are described and shown in the embodiments of the application, any suitable buses or interconnects are contemplated by the application.

The peep-proof display device can be based on the above embodiments, so as to realize the peep-proof display method described in fig. 11 and 12.

In addition, with the peep-proof display method in the above embodiment, the embodiment of the present application can be implemented by providing a computer storage medium. The computer storage medium having computer program instructions stored thereon; the computer program instructions, when executed by a processor, implement any of the privacy display methods of the embodiments described above.

Referring to fig. 14, the display device may be a PC, a television, a display, a mobile terminal, a tablet computer, a wearable device, or the like, and the display device may include the display panel provided in the embodiment of the present application.

It is to be understood that the present application is not limited to the particular arrangements and instrumentality described above and shown in the attached drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps, after comprehending the spirit of the present application.

The functional blocks shown in the above structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments can be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include an electronic circuit, a semiconductor memory device, a ROM, a flash memory, an Erasable ROM (EROM), a floppy disk, a CD-ROM, an optical disk, a hard disk, an optical fiber medium, a Radio Frequency (RF) link, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.

The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments can be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present application are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present application. It should be noted that there are no specific structures but rather a few limited ones due to the limited nature of the words used in this application and that many modifications, adaptations, and variations are possible and can be made by one skilled in the art without departing from the principles of this application and the foregoing teachings can be combined in any suitable manner; such modifications, variations, combinations, or adaptations of the present invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.

Claims

1. A display panel, comprising:

a plurality of pixels arranged in an array;

the driving chip comprises a plurality of data signal output ends, and the data signal ends of the pixels in the same row are respectively connected with the corresponding data signal output ends;

the driving chip is used for determining a plurality of first pixels displaying a normal image and a plurality of second pixels displaying an interference image in each image frame in a second mode, and providing a first data signal to the plurality of first pixels and a second data signal to the plurality of second pixels; the first data signal is a data signal corresponding to a normal image, and the second data signal is a data signal corresponding to an interference image;

in unit time, the ratio of the number of image frames displayed by a single pixel as a second pixel to the total number of image frames displayed by the single pixel in the unit time is less than or equal to a preset interference image frame ratio.

2. The display panel according to claim 1, wherein in each image frame in the second mode, the number of the first pixels and the number of the second pixels satisfy a first formula, the first formula including:

1/3>n/m>1/10；

wherein m is the number of the first pixels, and n is the number of the second pixels.

3. The display panel according to claim 1, wherein, in at least two image frames in the second mode, at least one first pixel in a previous image frame becomes a second pixel in a subsequent image frame;

and/or, in at least two image frames in the second mode, at least one second pixel in a previous image frame becomes a first pixel in a subsequent image frame.

4. The display panel of claim 3, wherein in at least two image frames in the second mode, all second pixels in a previous image frame become first pixels in a subsequent image frame.

5. The display panel according to claim 1, wherein the interference image is a reverse image obtained by performing a reverse color process on the normal image.

6. The display panel according to claim 1, wherein the interference image contains identification information including at least one of a character, a picture, and a pattern.

7. The display panel according to claim 6, wherein the interference image includes a plurality of identification information arranged uniformly or a plurality of identification information arranged irregularly.

8. A privacy display method applied to the display panel according to any one of claims 1 to 7, the method comprising:

in a second mode, acquiring a preset interference pixel proportion;

determining a plurality of first pixels displaying a normal image and a plurality of second pixels displaying an interference image in each image frame according to the interference pixel proportion; in unit time, the ratio of the number of image frames displayed by a single pixel as a second pixel to the total number of image frames displayed by the single pixel in the unit time is less than or equal to a preset interference image frame ratio;

according to a plurality of corresponding first pixels and a plurality of second pixels in each image frame, a first data signal is provided to the plurality of first pixels and a second data signal is provided to the plurality of second pixels.

9. The privacy display method of claim 8, wherein the determining a plurality of first pixels displaying a normal image and a plurality of second pixels displaying an interference image in each image frame according to the interference pixel ratio comprises:

dividing a plurality of pixels of the display panel into a plurality of pixel groups according to a preset pixel combination mode;

and determining the number of the first pixels and the number of the second pixels in each pixel group according to the interference pixel proportion.

10. The privacy display method according to claim 9, wherein the determining the number of first pixels and the number of second pixels in each pixel group according to the interference pixel ratio comprises:

11. The privacy display method of claim 9, wherein the predetermined pixel combination comprises:

or, dividing j pixels of the same column into a pixel group; j is a positive integer greater than or equal to 4;

12. The peep-proof display method according to claim 8, wherein the display panel has a camera area for accommodating a camera, the camera area is provided with a front camera, and before acquiring the preset interference pixel ratio in the second mode, the method further comprises:

or when the number of the faces recognized by the front camera is larger than 1, entering a second mode.

13. A privacy display device, comprising: a processor and a memory storing computer program instructions;

the processor, when executing the computer program instructions, implements the privacy display method of any one of claims 8-12.

14. A computer storage medium having computer program instructions stored thereon that, when executed by a processor, implement the privacy display method of any one of claims 8-12.

15. A display device characterized in that it comprises a display panel according to any one of claims 1 to 7.