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

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, privacy-proof display method, apparatus, storage medium, and display device

technical field

The present application belongs to the field of display technology, and in particular relates to a display panel, a privacy-preventing display method, equipment, a storage medium and a display device.

Background technique

At present, a display panel is usually composed of a plurality of pixels arranged in an array, and the pixels include pixel circuits and light-emitting elements. When the display panel displays an image normally, the image may be secretly photographed by others through illegal photography, resulting in the leakage of the image content.

In the existing anti-candid photography technology, the angle of the light emitted from the display panel is mainly narrowed, so that the display angle of view is reduced, so that the display image can only be viewed from the front angle of view 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, others can secretly photograph the image content displayed on the display panel by front-facing photography, resulting in leakage of the image content.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a display panel, a privacy-preventing display method, equipment, a storage medium, and a display device, which can solve the technical problem in the prior art that the displayed content cannot be prevented from being secretly photographed.

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

Multiple pixels, multiple pixels are arranged in an array;

The scanning signal control module includes a plurality of shift register units, and the scanning signal terminals of the pixels in the same row are electrically connected with the corresponding shift register units;

a driver chip, the driver chip includes a plurality of data signal output terminals, and the data signal terminals of the pixels in the same column are respectively connected with the corresponding data signal output terminals;

a driving chip for determining, in the second mode, a plurality of first pixels displaying a normal image and a plurality of second pixels displaying an interference image in each image frame, and providing a first data signal to the plurality of first pixels; providing a second data signal to a 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 a unit time, the ratio of the number of image frames displayed by a single pixel as the second pixel to the total number of image frames displayed in the unit time is less than or equal to a preset ratio of interference image frames.

In a second aspect, an embodiment of the present application provides a privacy-preventing display method, which is applied to the above-mentioned display panel, and the method includes:

In the second mode, obtain the preset interference pixel ratio;

According to the ratio of disturbing pixels, determine multiple first pixels displaying normal images and multiple second pixels displaying disturbing images in each image frame; in unit time, the number of image frames displayed by a single pixel as a second pixel is the same as the number of image frames displayed in unit time. The ratio of the total number of image frames displayed in time is less than or equal to the preset interference image frame ratio;

The first data signals are provided to the plurality of first pixels and the second data signals are provided to the plurality of second pixels according to the corresponding plurality of first pixels and the plurality of second pixels in each image frame.

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

The above-mentioned anti-privacy display method is implemented when the processor executes 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 thereon, and when the computer program instructions are executed by a processor, the above privacy-preventing display method is implemented.

In a fifth aspect, an embodiment of the present application provides a display device including the above-mentioned display panel.

Compared with the prior art, the display panel, anti-peep display method, device, storage medium, and display device provided by the embodiments of the present application can determine the plurality of first pixels and the plurality of first pixels in each image frame in the second mode. A second pixel is provided, a corresponding first data signal is provided to the first pixel, and a corresponding second data signal is provided to the second pixel. The first pixel can display a normal image under the first data signal, and the second pixel can display an interference image under the second data signal. In a unit time, the ratio of the number of image frames in which a single pixel in the display panel is used as the second pixel to the total number of image frames displayed in the unit time may be set to be less than or equal to a preset interference image frame ratio. When someone else takes a candid photo, the captured image is formed by mixing the normal image and the interference image, so that part of the normal image can be hidden and the image content can be prevented from leaking. By setting a suitable interference pixel ratio, the ratio of the image frame of the interference image displayed by a single pixel in a unit time to the total image frame displayed in the unit time can be lower than the degree that the human eye can recognize. Due to the effect of human visual persistence, the pixels displaying the interfering image are difficult to be recognized by the human eye and will not affect the normal viewing of the user. When someone else takes a candid photo, the captured image is displayed by the first pixel. The mixed image is formed by mixing the normal image and the interference image displayed by the second pixel, and the interference image can effectively block or neutralize the image content of the normal image, so as to avoid leakage of the image content when others can secretly take pictures.

Optionally, the content of the interference image is not related to the content of the normal image. For example, when the interference image is a fixed image, a plurality of second pixels of the display panel in the second mode display the interference image under the second data signal. In the normal image displayed in one mode, the pixel positions corresponding to the plurality of second pixels in the second mode no longer display the image content of the normal image, but display the image content of the interfering image, thereby realizing the shading coverage of the normal image.

Optionally, when the interference image is generated from a normal image after parameter adjustment, the interference image is correlated with the normal image. For example, the interference image can be adjusted by adjusting parameters such as the RGB color value, brightness value, or color coordinate value of the normal image. post-generated image. In the second mode, when the normal image and the interference image are superimposed at the same position in the two image frames, even if the candid photographer makes the candid camera take a long exposure, the pixels of the two frames will have color or brightness changes. Neutralization, so that the image content displayed by the normal image cannot be recognized in the mixed image obtained by candid photography.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following briefly introduces the drawings required in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a display panel provided by an embodiment of the present application;

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

Fig. 3 is the image content displayed by some pixels in Fig. 2;

4 is a schematic diagram illustrating that some pixels of a display panel in a second mode receive a first data signal and a second data signal according to an embodiment of the present application;

Fig. 5 is the image content displayed by some pixels in Fig. 4;

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

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

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

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

10 is a mixed image of a normal image and an interference image in an embodiment of the present application;

11 is a schematic flowchart of a privacy-preventing display method provided by an embodiment of the present application;

12 is a schematic flowchart of a privacy-preventing display method provided by another embodiment of the present application;

13 is a schematic diagram of a hardware structure of a privacy-prevention display device provided by an embodiment of the present application;

FIG. 14 is a schematic structural diagram of a display device provided by an embodiment of the present application.

Detailed ways

The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application more clear, 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 only intended to explain the present application, but not to limit the present application. It will be apparent to those 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 to provide a better understanding of the present application by illustrating examples of the present application.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element defined by the phrase "comprises" does not preclude the presence of additional identical elements in a process, method, article, or device that includes the element.

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The embodiments will be described in detail below with reference to the accompanying drawings.

Existing display panel products are usually composed of a plurality of pixels arranged in an array. The pixels may include a pixel circuit and a light-emitting element. The pixel circuit may provide a driving current for the light-emitting element, so that the light-emitting element emits light.

When the display panel normally displays the image content, the image content may be secretly photographed by other persons in front of the display panel by illegally photographing, thereby resulting in the leakage of the image content. In the existing anti-candid photography technology, the exit angle of the light emitted by the display panel is mainly limited, thereby limiting the display viewing angle, and the image content displayed on the display panel can be viewed only at the front angle of the display panel.

However, even if the display angle of view is limited, when someone else is at the frontal angle of view, the image content displayed on the display panel can be photographed secretly by means of front-facing photography, resulting in leakage of the image content.

In order to solve the above technical problems, embodiments of the present application provide a display panel, a privacy-proof display method, equipment, a storage medium, and a display device. The display panel provided by the embodiment of the present application is first introduced below.

FIG. 1 shows a schematic structural diagram of a display panel provided by 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. Among the plurality of pixels 10, the scan signal terminals of the pixels 10 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 end of the driver chip 20 or the number of signal lines in the data fan-out area of the display panel, a plurality of multiplexers MUX can also be set in the display panel. A data signal output terminal of the driving chip 20 can be connected to a plurality of pixel columns by gating respectively, so as to provide data signals for the plurality of pixel columns respectively through one data signal output terminal.

The display panel can display the image content in the first mode and the second mode. In the first mode, the display panel can normally display image content. In the second mode, the display panel can control some of the pixels 10 to display a normal image and some of the pixels 10 to display an interference image, so that the displayed actual image is a mixture of the normal image and the interference image. In the second mode, even if someone else shoots the image content displayed on the display panel through the shooting device, the captured image is formed by mixing the normal image and the interference image, and the part of the interference image in the actual image can affect the specific image content. Covering or neutralizing the effect, so that the candid shooter cannot capture the complete normal image content, effectively preventing others from taking photos secretly and avoiding the leakage of the image content.

It can be understood that the interference image may be image content that is not related to the normal image, or may be generated by adjusting the parameters of the normal image.

Optionally, the interference image is not related to the content of the normal image, and when the interference image is a fixed image, a plurality of second pixels of the display panel in the second mode display the interference image under the second data signal, which is compared with the first In the normal image displayed in the second mode, the pixel positions corresponding to the plurality of second pixels in the second mode no longer display the image content of the normal image, but display the image content of the interference image, thereby realizing the shading coverage of the normal image.

Optionally, when the interference image is generated from a normal image after parameter adjustment, the interference image is correlated with the normal image. For example, the interference image can be adjusted by adjusting parameters such as the RGB color value, brightness value, or color coordinate value of the normal image. post-generated image. In the second mode, since the normal image and the interference image are superimposed at the same position in the two image frames, even if the candid photographer makes the candid camera take a long-time exposure, the two frames of images will have intermediate color or brightness. and, so that the image content displayed by the normal image cannot be recognized in the mixed image obtained by candid photography.

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. Wherein, both the first pixel and the second pixel are part of the plurality of pixels 10 in the display panel. And there is no overlap between the first pixel and the second pixel. That is, in a single image frame, if 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 that emit 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 the normal image and the second pixel may display the disturbing image. After determining the plurality of first pixels and the plurality of second pixels corresponding to the image frame, the driving chip 20 may provide corresponding first data signals to each first pixel and provide corresponding first data signals to each second pixel respectively. Two data signals.

It can be understood that the driving signal can determine the normal image and the interference image corresponding to each image frame. When it is determined that a certain pixel 10 in the image frame is the first pixel, the corresponding data signal is determined according to the target display parameter corresponding to the pixel 10 in the normal image, and the data signal is the first data signal corresponding to the first pixel . Correspondingly, when it is determined that a certain pixel 10 in the image frame is the second pixel, the corresponding data signal is determined according to the target display parameter corresponding to the pixel 10 in the interference image, and the data signal is the first pixel corresponding to the second pixel. Two data signals.

In each image frame, each row of pixels 10 is driven row by row in a row scanning driving manner. Taking one row of pixels 10 as an example, the driving chip 20 can determine the first pixel and the second pixel in the row of pixels 10, and when the shift register unit corresponding to the row of pixels 10 outputs a scan signal, the corresponding first pixels are used for each pixel. The corresponding first data signal is output from the data signal output terminal of each second pixel, and the corresponding second data signal is output through the corresponding data signal output terminal of each second pixel. Then, the plurality of first pixels in the row of pixels 10 display the normal image, and the plurality of second pixels display the disturbed image. For each row of pixels 10 , when the shift register unit corresponding to each row of pixels 10 outputs a scan signal, the driving chip 20 can provide the first data signal to the first pixel in the row of pixels 10 , and provide the second data signal to the second row of pixels 10 in the row of pixels 10 . The pixel provides the second data signal. In this image frame, each first pixel implements the display of a normal image through the corresponding first data signal, and each second pixel implements the display of the interference image through the corresponding second data signal.

It can be understood that, in each image frame in the second mode, there are a plurality of second pixels, and the plurality of second pixels receive corresponding second data signals, so that at pixel positions corresponding to the plurality of second pixels Interference images are displayed on the display. When someone else takes a picture of the display area of the display panel, the image content displayed on the pixel position corresponding to each second pixel in the obtained image frame is not a normal image, but an interference image. Therefore, even if someone else takes a picture of the display panel, a complete normal image cannot be obtained by taking a picture, thereby avoiding the leakage of the image content.

Referring to FIG. 2 and FIG. 3 , in an example, FIG. 2 shows part of the pixels 10 of the display panel in the first mode, and each of the part of the pixels 10 receives the corresponding first data signal. FIG. 3 shows a normal image displayed by the part of the pixels 10 under the first data signal.

Please refer to FIG. 4 and FIG. 5. In another example, FIG. 4 shows a part of the pixels 10 of the display panel in the second mode, and the part of the pixels 10 includes a plurality of first pixels and a plurality of second pixels, wherein The first pixel receives the corresponding first data signal, and the second pixel receives the corresponding second data signal. 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 FIG. 5 , it can be determined that, in the second mode, the display panel can display the corresponding interference image through a plurality of second pixels, so that the normal image and the interference image are formed. There is a big difference between the mixed image and the original normal image. Even if someone else shoots the display panel, a complete normal image cannot be obtained.

For a single pixel in the display panel, the ratio of the number of image frames displayed as the second pixel per unit time to the total number of image frames displayed in the unit time should be set to be less than or equal to the preset interference Image frame scale. The interfering image frame ratio refers to the ratio of the number of image frames in which the second pixel displays the interfering image to the total number of image frames on the premise that the human eye cannot perceive the interfering 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 less than or equal to the ratio of the interference image frame, the human eye can always be unable to perceive that the single pixel displays the interference image.

For example, when the preset interference image frame ratio is 1:11, in order to prevent human eyes from perceiving that a single pixel displays an interference image, the number of image frames displayed by a single pixel as a second pixel in a unit time is related to the unit time. The ratio of the number of total image frames displayed within the frame should be set to be less than or equal to 1:11. . After calculation, it can be seen that when the unit time is 1 second, the refresh frequency of the display panel is 60Hz, and the number of image frames displayed by a single pixel as the second pixel in the unit time is 5, the difference between the image frame displayed as the second pixel and the total image frame is The ratio is 1:12. At this time, the ratio is less than 1:11, which satisfies the requirement that the ratio is less than or equal to the ratio of the interference image frame. However, when the image frame displayed by a single pixel as the second pixel in 1 second is 6, the ratio of the image frame displayed as the second pixel to the total image frame is 1:10. At this time, the ratio is greater than 1:11, which does not satisfy the The ratio is less than or equal to the requirement of the frame ratio of the interference image. Therefore, when the preset interference image frame ratio is 1:11, if the refresh frequency of the display panel is 60 Hz, the number of image frames displayed by a single pixel as the second pixel in one second per unit time should be less than or equal to 5.

It can be understood that when the preset interference image frame ratio is 1:11, if the refresh rate of the display panel is 120Hz, the number of image frames displayed by a single pixel as the second pixel within one second per unit time should be set to Less than or equal to 10. Similarly, under the condition that the preset interference image frame ratio remains unchanged, if the refresh frequency of the display panel is 144 Hz, the number of image frames displayed by a single pixel as the second pixel within one second per unit time should be set to be less than or equal to 12.

It should be noted that due to the phenomenon of persistence of vision in the human eye, that is, when the human eye observes the scene, the light signal is transmitted to the brain nerve, and it takes a short period of time. After the effect of the light ends, the visual image does not disappear immediately. This residual vision is called "afterimage", and this phenomenon of vision is called "persistence of vision". Usually, the duration of human vision is about 0.1s-0.4s. That is, the content displayed by the normal image will remain in the human eye for about 0.1s-0.4s. When the display time of the disturbing image is shorter than the dwelling time of the human eye, the disturbing image will not be perceived by the human eye. It will not affect the normal viewing of normal images by the human eye. For example, when the refresh rate of the display panel exceeds 11Hz, the display duration of each image frame is about 0.09s. Taking a single pixel display as an example, if 11 image frames are set as 10 normal images and 1 interference image, then The human eye does not perceive that the single pixel displays the disturbing image because the display time of the disturbing image is shorter than the duration of the human eye's visual persistence. Correspondingly, when the refresh frequency is 48Hz, the number of image frames of the interfering image is within 4 frames, and its display time will not exceed 0.1s, which does not affect the normal viewing experience; when the refresh frequency is 60Hz, the number of image frames of the interfering image is Within 5 frames, the display time will not exceed 0.1s, which will not affect the normal viewing experience. According to the actual refresh frequency of the display panel, the corresponding interfering image frame ratio can be set, so that the display duration of the image frame in which a single pixel in the display panel displays the interfering image per unit time is shorter than the duration of human vision, thereby avoiding The human eye perceives disturbing images.

It can be understood that, in a unit time, the number of image frames displayed by a single pixel as the second pixel may also be 0. That is, in the second mode, some of the pixels 10 can continue to display a normal image as the first pixel, but will not display an interference image as the second pixel.

In this embodiment, when displaying each image frame in the second mode, the display panel may determine a plurality of first pixels and a plurality of second pixels in the image frame. The driver chip 20 of the display panel can provide the corresponding first data signal or the second data signal according to 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 is displayed in the image frame. Interference images are displayed in this image frame. And the ratio of the number of image frames displayed as the second image by a single pixel in the display panel to the total number of image frames in a unit time is not greater than the preset interference image frame ratio, so that a single pixel will not be disturbed when displaying the interference image. Perceived by the eye, it does not affect the normal viewing of the display content by the human eye. For the photographing device, the captured 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. The interference image can effectively block or neutralize the image content of the normal image, thereby avoiding Leakage of image content when others secretly take pictures.

In some embodiments, in each image frame in the above second mode, the number of first pixels and the number of second pixels can 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 the second pixels displaying the disturbance image to the number of the first pixels displaying the normal image may be set in a range of 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 means that the number of the second pixels accounts for one-fourth of all the emitting pixels in the image frame. When the ratio of the number of the second pixels to the number of the first pixels is one tenth, it means that the number of the second pixels accounts for one eleventh of all the emitting pixels in the image frame. When the ratio of the number of the first pixel to the second pixel is within the above range, the interference image displayed by the second pixel in the image frame can effectively cover and neutralize the content displayed by the normal image, so as to prevent normal The image content of the image was leaked during candid photography.

It can be understood that, in a single image frame, if the number of second pixels displaying the interference image is greater, the image content captured by the photographing device contains less normal image content, and the anti-candid shooting 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 1:10 and less than 1:3. When the ratio of the number of the second pixels to the number of the first pixels reaches 1:10, the image area of the interfering image in a single image frame is sufficient to achieve the effect of preventing candid photography. 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 interference images in the image frame corresponding to this ratio account for a larger proportion of the total display area. At this time, in order to avoid a single pixel as the first pixel The display time of the two pixels is too long and the human eye perceives that the single pixel displays an interfering image, and the number of the second pixels needs to be reduced in other image frames. However, when the number of second pixels in other image frames is small, the formed interference image cannot effectively shield or neutralize the normal image, which will reduce the anti-candid shooting effect in other image frames.

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

Correspondingly, in the at least two image frames in the above-mentioned second mode, at least one second pixel in the previous image frame becomes the first pixel in the subsequent image frame. That is, at least one pixel displays an interference image in a previous image frame and displays a normal image in a subsequent image frame.

It can be understood that, when at least one of the above-mentioned transformation methods of the preceding and following image frames is satisfied, there is a difference between the display area of the interference image of the previous image frame and the display area of the interference image of the following image frame.

In order to prevent the candid photographer from capturing the image content, it does not affect the normal viewing of the image content displayed on the display panel by the human eye. The time for a single pixel in the display panel to display the disturbing image as the second pixel should be lower than the time range of human visual persistence. When the time when a single pixel is used as the second pixel to display the interference image is within the time range of human visual persistence, the content of the interference image will be viewed by the human eye, thereby affecting the viewing of the normal image.

It can be understood that, in order to make the display time of a single pixel as the second pixel shorter than the duration of human visual persistence, in different image frames, a single pixel needs to be switched between the first pixel and the second pixel, Therefore, each pixel will not cause the interference image to be perceived by the human eye because the time for displaying the interference image as the second pixel is too long. Therefore, there are at least two image frames in the second mode, so that there is a difference in the number of second pixels or the pixel positions of the respective second pixels between the two image frames.

When at least one first pixel in the previous image frame becomes the second pixel in the subsequent image frame, it means that the pixel position displays the normal image and the interference image in the two image frames before and after respectively, then the difference between the two image frames At least at this pixel position, the displayed image has changed. Similarly, when at least one second pixel in the previous image frame becomes the first pixel in the subsequent image frame, it means that the pixel position displays an interference image and a normal image in the two image frames before and after, respectively. At least at this pixel location between frames, the displayed image also changes.

It should be noted that, the at least two image frames in the second mode may be two adjacent image frames, or may be two non-adjacent image frames. For example, when the refresh frequency of the display panel is 120 Hz, even if the number and position of the first pixels in two consecutive image frames do not change, and the number and position of the second pixels do not change, due to the When the display time is less than 0.02s, even if the position and number of the second pixel have not changed, the human eye cannot perceive the existence of the interfering pixel. That is, in multiple consecutive image frames, when the position and number of each second pixel do not change, if the display duration of each second pixel in multiple image frames is shorter than the duration of human visual persistence, it will not be detected. perceived by the human eye.

It can be understood that, according to the refresh frequency of the display panel, the number of image frames displayed when the number and position of the second pixels are changed can also be adjusted. For example, when the refresh frequency of the display panel is low, the number and position of the second pixels may be changed in every two adjacent image frames, so that in any two adjacent image frames, the Neither the number nor the location will be exactly the same. When the refresh frequency of the display panel is high, the number and position of the second pixels can be changed every several image frames, and the number and position of the second pixels in the several image frames do not change, and the driver chip can The second data signals are provided for the same plurality of second pixels in the several image frames, thereby saving the power consumption of the display panel.

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

It can be understood that, the two image frames before and after may be two adjacent image frames, or may be two non-adjacent image frames. The multiple pixel positions where the interference image is displayed in the previous image frame are changed to display the normal image in the subsequent image frame. Correspondingly, among the plurality of first pixels displaying the normal image in the previous image frame, some of the first pixels become second pixels in the subsequent image frame, and the disturbing image is displayed.

In some embodiments, the above-mentioned interference image may be an inverse color image obtained after a normal image undergoes color inversion processing.

When a candid photographer shoots with a shooting device, the content of the captured image is an image formed by mixing a normal image and an inverse-color image of the normal image. For each local area of the display panel, the light emitting color of the pixels displaying the normal image and the surrounding pixels displaying the inverted color image are neutralized, so that the image content displayed in each local area in the captured image cannot be in and out of the inverted color. recognition, so that the image content cannot be obtained from the captured image.

It can be understood that, the above-mentioned inversion processing may be inversion processing of the RGB color value displayed by the pixel in the normal image. For example, the RGB color value displayed by a pixel in the normal image is (R, G, B), then the color value displayed by the pixel in the inverted image is (255-R, 255-G, 255-B ).

Please refer to FIG. 6 to FIG. 8 . FIG. 6 is a normal image corresponding to a certain image frame displayed on the display panel. By performing inverse color processing on the RGB color value of each pixel in the normal image, the inverse color image corresponding to the image frame shown in FIG. 7 can be obtained. After determining the first pixel and the second pixel in the plurality of pixels, the display panel can provide the first data signal corresponding to the normal image according to the pixel position of each first pixel, and the corresponding inverse color image according to the pixel position of each second pixel. the second data signal. Then, the image displayed on the display panel is the mixed image of the normal image and the inverted 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 its inverse color image, the image content in the normal image can be effectively shielded, thereby avoiding the leakage of the image content.

In some embodiments, the above-mentioned interference image may contain identification information, and the identification information may include at least one of characters, pictures and patterns. The identification information can be used to indicate that the image is captured in an abnormal manner. For example, the identification information may include the maker of the displayed normal image to indicate the owner of the image. The identification information may also include text content or watermark content indicating that the image is obtained by illegal shooting, so that other people can understand the image from the display area of the disturbed image after viewing the image formed by mixing the normal image and the disturbed image. Obtained for illegal filming.

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

In the above-mentioned embodiment, the interference image may include multiple pieces of identification information arranged uniformly or multiple pieces of identification information arranged irregularly.

Since the interference image is only displayed by a part of the second pixels in the display panel, and the distribution positions of the respective second pixels may be uniformly distributed, or may be centrally distributed or randomly distributed. If the identification information in the interference image is only set at a fixed position, if there is no second pixel or the number of second pixels is small in the area where the fixed position is located, it is impossible to accurately identify the identification information from the captured image. content expressed. By setting the interference image to be composed of a plurality of evenly arranged or irregularly arranged identification information, the identification information can still be displayed in the image captured by the candid photographer when the number and position of the second pixels are constantly changing.

It is understandable that, if the number of second pixels in a single image frame is small, when the second pixels are not concentrated in a certain area, but distributed, the human eye may not be able to disperse them from the captured image. The identification information is identified in the interference image displayed by the second pixel. Therefore, in order to enable the human eye to recognize the identification information from the disturbing image part in the captured image, it is necessary to set the ratio of the second pixels to the total pixels or the lower limit of the ratio of the second pixels to the first pixels in a single image frame. For example, the lower limit of the ratio of the number of second pixels to the number of first pixels can be set to one-tenth, that is, the number of second pixels should be at least one-eleventh of the pixels that emit light in the display panel, so as to avoid The number of pixels is too small to identify identification information from the interference image displayed by the second pixel.

The embodiment of the present application also provides a privacy-preventing display method, which is applied to the display panel in the above-mentioned embodiment. FIG. 11 shows a schematic flowchart of a privacy-preventing display method provided by an embodiment of the present application. The method includes the following steps:

S1110, in the second mode, obtain a preset interference pixel ratio;

S1120: Determine 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; within a unit time, a single pixel is used as the image frame displayed by the second pixel The ratio of the number to the total number of image frames displayed in the unit time is less than or equal to the preset interference image frame ratio;

S1130, according to a plurality of first pixels and a plurality of second pixels corresponding to each image frame, provide a first data signal to the plurality of first pixels and a second data signal to the plurality of second pixels.

In this embodiment, in the second mode, the display panel can determine the first pixel and the second pixel in each image frame according to the preset interference pixel ratio, and provide the first pixel with the corresponding first pixel in the image frame. The data signal provides the second pixel with a corresponding second data signal, so that the first pixel in the image frame displays a normal image, and the second pixel displays an interference image. And the ratio of the number of image frames displayed as the second image by a single pixel in the display panel to the total number of image frames in a unit time is not greater than the preset interference image frame ratio, so that a single pixel will not be disturbed when displaying the interference image. Perceived by the eye, it does not affect the normal viewing of the display content by the human eye. As for the photographing device, the photographed 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. In the mixed image, the interfering image can effectively block or neutralize the image content of the normal image, so as to avoid the leakage of the image content when others secretly take pictures.

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

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

In S1120, after obtaining the preset interference pixel ratio, the driver chip of the display panel may determine the number and position of the plurality of first pixels and the number of the plurality of second pixels in each image frame according to the interference pixel ratio ,Location. The plurality of first pixels may display normal images, and the plurality of second pixels may display disturbing images.

It should be noted that the display panel displays the mixed image formed by the normal image and the interference image in the second mode, in order to prevent others from taking pictures secretly, so that in the content of the image captured by the candid photographer, the normal image is obscured by the interference image. or neutralized so that the image content does not leak. While preventing the leakage of the image content due to candid photography, it is also necessary to avoid affecting the normal viewing of the image content displayed on the display panel by the human eye. Due to the phenomenon of human eye persistence, in a unit time, if the number of image frames displayed by a single pixel as the second pixel is low, the human eye will not perceive the interference image. However, when the number of image frames displayed by a single pixel as the second pixel is relatively high, the human eye will perceive the disturbing image, thereby affecting normal viewing. Therefore, in a unit time, the ratio of the number of image frames displayed by a single pixel in the display panel as the second pixel to the total number of image frames displayed in a unit time should be less than or equal to the preset interference image frame ratio. The frame ratio of the interference image can be adjusted according to the time range of human visual persistence and the current refresh frequency of the display panel, so that when a single pixel is used as the second pixel to display the interference image per unit time, it will not be perceived by the human eye.

As an optional embodiment, please refer to FIG. 12 , the above 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;

S1220: Determine the number of first pixels and the number of second pixels in each pixel group according to the ratio of the interference pixels.

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 determine the number of first pixels and the number of second pixels in each pixel group according to the ratio of disturbing pixels.

In S1210, the manner in which the display panel determines the first pixel and the second pixel in the single image frame may be to divide the plurality of pixels of the display panel into a plurality of pixel groups according to a preset pixel combination manner, and to assign each pixel The plurality of pixels in the group are divided into first pixels and second pixels.

As an optional embodiment, the foregoing S1210 may include:

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

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

Or, divide k*p pixels in k rows and p columns into a pixel group; k and p are positive integers greater than or equal to 2.

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

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 be used as the second pixel, and other pixels may be used as the first pixel. And in different image frames, the position and number of the second pixels in the pixel group can be changed, so as to avoid a single pixel in the pixel group from being perceived by the human eye due to the long time of displaying the disturbing image as the second pixel. interfere with the image.

It can be understood that when a single pixel group includes a second pixel, the number of pixels in the pixel group can be set to be greater than or equal to 4, that is, i≥4, at this time, the ratio of the second pixel to the total pixels in the pixel group is less than equal to a quarter. At this time, for the mixed image displayed on the display panel, the proportion of the interference image displayed by the second pixel is less than or equal to one-fourth, so as to prevent the proportion of the second pixel in some image frames from being too large to cause other image frames. There are fewer second pixels in each image frame, so that the interference images displayed by the second pixels in each image frame can achieve the effect of shading or neutralizing the normal image.

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

Similar to the above division method, the display panel may divide multiple pixels in the same column into a pixel group, one or more pixels in the pixel group may be used as the second pixel, and other pixels may be used as the first pixel. Similarly, when a single pixel group includes a second pixel, the number of pixels in the pixel group can be set to be greater than or equal to 4, that is, j≥4. At this time, for the mixed image displayed by the display panel, the second pixel displays The display area of the interference image is less than or equal to a quarter of the overall display area, which will not cause the proportion of the second pixel in some image frames to be too small, so that the interference image displayed by the second pixel in each image frame can be achieved. Masking or neutralizing effects for normal images.

iii) Divide k*p pixels in k rows and p columns into a pixel group; k and p are positive integers greater than or equal to 2.

In this division method, the display panel can divide a pixel matrix formed by k*p pixels in k rows and p columns into a pixel group, one or more pixels in the pixel group can be used as the second pixel, and other pixels are as the first pixel. Similar to the reason for setting the number of pixel groups above, when a single pixel group includes a second pixel, the number of pixels in the pixel group can be set to be greater than or equal to 4. Due to the matrix division method of k rows and p columns, in k, p is a positive integer greater than or equal to 2, that is, when k≥2 and p≥2, the number of pixels in the formed pixel matrix is greater than or equal to 4. At this time, for the mixed image displayed by the display panel, the second pixel displays The display area of the interference image is less than or equal to a quarter of the overall display area, which will not cause the proportion of the second pixel in some image frames to be too small, so that the interference image displayed by the second pixel in each image frame can be achieved. Masking or neutralizing effects for normal images.

It should be noted that, the above-mentioned respective pixel combination manners may be applied individually or in combination. That is, each pixel in the display panel can be divided into pixel groups by using one of the above-mentioned multiple pixel combination methods, or can be divided into pixel groups by using two or three combination methods.

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

It can be understood that after determining the number of first pixels and the number of second pixels in each pixel group, the positions of the second pixels can be switched in different image frames, so that the same pixel group in different image frames , the number of the second pixel remains unchanged, and the position changes. For example, when 6 pixels in the same row are divided into a pixel group, if it is determined that the number of second pixels in the pixel group is 1, the pixel position of the second pixel in different image frames can be changed. . The moving manner of the pixel position of the second pixel may be that the second pixel moves circularly to the left or to the right at every interval of one or more image frames, or the second pixel moves randomly among six pixel positions.

In the above-mentioned embodiment, it can be understood that, in different image frames, if the ratio of interfering pixels does not change, the number of second pixels in the same pixel group remains unchanged. The pixel position of the pixel changes. In different image frames, if the ratio of interference pixels also changes, the number of second pixels in the same pixel group will also change with the ratio of interference pixels. At this time, the same pixel group is in different image frames. , the number of second pixels will also change accordingly.

As an optional embodiment, the above S1220 may include:

The number of the first pixels and the number of the second pixels are 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 ratio of the interference pixels.

In this embodiment, after determining the proportion of interfering pixels, the number of first pixels and the number of second pixels may be determined according to the number of pixels in each pixel group, so that the ratio of the number of second pixels to the number of first pixels Equal to the ratio of interference pixels. For example, when the number of pixels in a certain pixel group is 6 and the ratio of interference pixels is 1:5, it can be determined that the number of first pixels is 5 and the number of second pixels is 1, then the number of second pixels is the same as that of first pixels. The ratio of the numbers is equal to the ratio of the interference pixels. In another example, when the number of pixels in the pixel group is 12 and the ratio of interference pixels is 1:5, it can be determined that the number of first pixels is 10 and the number of second pixels is 2.

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

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

In each image frame, each row of pixels is driven row by row by means of row scanning driving. Taking one row of pixels as an example, the driver chip of the display panel can determine the first pixel and the second pixel in the row of pixels, and when the shift register unit corresponding to the row of pixels outputs the scan signal, the corresponding first pixel is passed through the pixel. The data signal output terminal outputs the corresponding first data signal, and the corresponding second data signal is output through the data signal output terminal corresponding to each second pixel. Then, 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, when the shift register unit corresponding to each row of pixels outputs a scan signal, the driving chip can provide the first data signal to the first pixel in the row of pixels, and provide the second data to the second pixel of the row of pixels Signal.

As an optional embodiment, the display panel may be provided with a camera area for accommodating a camera, and the camera area is provided with a front camera. Before the above S1110, it may further include:

Enter the second mode in response to the privacy-prevention instruction triggered by the user;

Or, when the number of faces recognized by the front camera is greater than 1, enter the second mode.

In this embodiment, a camera area for accommodating a camera may be provided on the display panel, and a front camera may be provided in the camera area, and the front camera may photograph the light emitting direction of the display panel. In the first mode, the display panel can use each pixel in each image frame as the first pixel, so as to display the image content normally. In the first mode, the display panel may enter the second mode when a preset condition is met, and determine each pixel in each image frame as the first pixel or the second pixel in the second mode, so as to pass the first The pixel displays the normal image and the second pixel displays the disturbed image.

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

In the non-second mode, the display panel can also use the front camera to photograph the light emitting direction of the display panel, so as to photograph the user viewing the display panel. During the shooting process, the display panel can also perform face recognition according to the captured image, and determine the number of faces in the image. When the number of recognized faces is greater than 1, it means that there are two or more viewers in front of the display panel. At this time, the display panel can enter the second mode, so as to avoid the leakage of the display content caused by candid photography of the image content of the display panel by displaying the mixed image of the normal image and the interference image without affecting the normal viewing experience of the viewer. .

FIG. 13 shows a schematic diagram of a hardware structure of a privacy-prevention display device provided by an embodiment of the present application.

The privacy-preventing display device may include a processor 1301 and a memory 1302 storing computer program instructions.

Specifically, the above-mentioned processor 1301 may include a central processing unit (CPU), or a specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured as one or more integrated circuits implementing 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, optical disk, magneto-optical disk, magnetic tape, or Universal Serial Bus (USB) drive or two or more A combination of more than one of the above. Memory 1302 may include removable or non-removable (or fixed) media, where appropriate. Memory 1302 may be internal or external to the privacy-resistant display device, where appropriate. In certain embodiments, memory 1302 is non-volatile solid state memory.

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, typically, a memory includes one or more tangible (non-transitory) computer-readable storage media (eg, memory devices) encoded with software including computer-executable instructions, and when the software is executed (eg, by a or multiple processors), it is operable to perform the operations described with reference to a method 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 of the anti-privacy display methods in the foregoing embodiments.

In one example, the privacy-proof display device may further include a communication interface 1303 and a bus 1310 . Among them, as shown in FIG. 13 , the processor 1301 , the memory 1302 , and the communication interface 1303 are connected through the bus 1310 and complete the mutual communication.

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

The bus 1310 includes hardware, software, or both, coupling the components of the privacy-resistant display device to each other. By way of example and not limitation, the bus may include Accelerated Graphics Port (AGP) or other graphics bus, Enhanced Industry Standard Architecture (EISA) bus, Front Side Bus (FSB), HyperTransport (HT) Interconnect, Industry Standard Architecture (ISA) Bus, Infiniband Interconnect, Low Pin Count (LPC) Bus, Memory Bus, Microchannel Architecture (MCA) Bus, Peripheral Component Interconnect (PCI) Bus, PCI-Express (PCI-X) Bus, Serial Advanced Technology Attachment (SATA) bus, Video Electronics Standards Association Local (VLB) bus or other suitable bus or a combination of two or more of the above. Bus 1310 may include one or more buses, where appropriate. Although embodiments of this application describe and illustrate a particular bus, this application contemplates any suitable bus or interconnect.

The anti-privacy display device can be based on the above-mentioned embodiment, so as to realize the anti-privacy display method described in FIG. 11 and FIG. 12 .

In addition, in combination with the anti-privacy display method in the above embodiments, the embodiments of the present application may provide a computer storage medium for implementation. Computer program instructions are stored on the computer storage medium; when the computer program instructions are executed by the processor, any one of the anti-privacy display methods in the foregoing embodiments is implemented.

An embodiment of the present application further provides a display device, see FIG. 14 , the display device may be a PC, a TV, a monitor, a mobile terminal, a tablet computer, a wearable device, etc., and the display device may include the display device provided by the embodiment of the present application panel.

To be clear, the present application is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above-described embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the sequence of 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, a plug-in, a function card, or the like. When implemented in software, elements of the present application are programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted over a transmission medium or communication link by a data signal carried in a carrier wave. A "machine-readable medium" may include any medium that can store or transmit information. Examples of machine-readable media 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 the like. The code segments may be downloaded via a computer network such as the Internet, an intranet, or the like.

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, a plug-in, a function card, or the like. When implemented in software, elements of the present application are programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted over a transmission medium or communication link by a data signal carried in a carrier wave. A "machine-readable medium" may include any medium that can store or transmit information. Examples of machine-readable media 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 the like. The code segments may be downloaded via a computer network such as the Internet, an intranet, or the like.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus.

Specific examples are used herein to illustrate the principles and implementations of the present application, and the descriptions of the above examples are only used to help understand the methods and core ideas of the present application. The above are only the preferred embodiments of the present application. It should be pointed out that, due to the limitation of written expressions, there are objectively unlimited specific structures. For those of ordinary skill in the art, without departing from the principles of the present application, Several improvements, modifications or changes can also be made, and the above-mentioned technical features can also be combined in an appropriate manner; these improvements, modifications, or combinations, or the ideas and technical solutions of the present application are directly applied to other occasions without improvement. , shall be regarded as the protection scope of this application.

Claims (15)

1. A display panel, comprising:

a plurality of pixels arranged in an 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 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:

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.

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

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 of 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.

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:

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 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.

Images