WO2023011123A1 - Display driving method and apparatus, and electronic device - Google Patents

Abstract

A display driving method and apparatus, and an electronic device. The method comprises: when a display duration of a display image reaches a duration threshold, adjusting a pixel value of at least one color channel of the display image to obtain an intermediate image corresponding to each time interval, using a preset duration as the time interval (S11), and driving the display panel to display according to the intermediate image at each time interval (S12). The problem of image persistence caused by a display image displayed for a long time can be improved or even eliminated, and the display position of the display image on the screen is not changed. Furthermore, by means of adjusting the pixel value of at least one color channel of the display image, dynamic display of the display image is achieved. While still preventing screen burn-in, the picture does not bounce, shake, etc., and the required software and hardware resources are relatively low, and are characterized by high efficiency and low cost.

Description

Display driving method and device, electronic device technical field

The present disclosure relates to the field of display technology, and in particular, to a display driving method and device, and electronic equipment.

Background technique

Ordinary displays, such as LED displays, OLED displays, or LCD displays, all have the problem of image retention. For example, for TFT-LCD displays, when the same static image is displayed for a long time, the liquid crystal is polarized due to long-term driving, making the liquid crystal Molecules cannot rotate normally under the control of signal voltage. Therefore, after displaying the same pattern (for example, TV channel logo, screen saver, etc.) The normal display of the next frame image on the monitor.

Contents of the invention

According to an aspect of the present disclosure, there is provided a display driving method applied to a display panel, the method comprising:

When the display duration of the displayed image reaches the duration threshold, the preset duration is used as the time interval to change the pixel value of at least one color channel of the displayed image to obtain intermediate images corresponding to each time interval, wherein adjacent The intermediate images of the time intervals are different;

At each time interval, the display panel is driven to display according to the intermediate image.

In a possible implementation manner, the changing the pixel value of at least one color channel of the display image to obtain an intermediate image corresponding to each time interval includes:

Obtain the pixel adjustment value corresponding to each time interval;

The pixel value of at least one color channel of the display image is adjusted according to the pixel adjustment value to obtain an intermediate image corresponding to each time interval.

In a possible implementation manner, the acquiring pixel adjustment values corresponding to each time interval includes:

Use a random number generator to generate random numbers to obtain pixel adjustment values corresponding to each time period; or

Obtain the pixel adjustment value corresponding to each time interval from the preset adjustment value set.

In a possible implementation manner, the driving the display panel to display according to the intermediate image includes:

When the intermediate image is not an RGB image, performing color space conversion processing on the intermediate image to convert the intermediate image into an RGB image;

A drive signal is generated according to the intermediate image after color space conversion, and the display panel is driven to perform dynamic display at preset time intervals.

In a possible implementation manner, the method also includes:

Converting the initial display image from the RGB color space to another color space to obtain the display image.

In a possible implementation manner, the image format of the display image includes any one of RGB image, YUV image, HSV image, HSL image and YCbCr image.

According to an aspect of the present disclosure, a display driving device is provided, which is applied to a display panel, and the device includes:

An adjustment module, configured to: change the pixel value of at least one color channel of the displayed image with the preset duration as the time interval when the display duration of the displayed image reaches the duration threshold, and obtain the intermediate value corresponding to each time interval images, wherein intermediate images of adjacent time intervals are different;

A driving module, connected to the adjusting module, configured to drive the display panel to display according to the intermediate image at each time interval.

In a possible implementation manner, the adjustment module includes:

an acquisition unit, configured to acquire pixel adjustment values corresponding to each time interval;

An adjustment unit, configured to adjust the pixel value of at least one color channel of the display image according to the pixel adjustment value, to obtain intermediate images corresponding to each time interval.

In a possible implementation manner, the acquiring unit is further configured to:

Use a random number generator to generate random numbers to obtain pixel adjustment values corresponding to each time period; or

Obtain the pixel adjustment value corresponding to each time interval from the preset adjustment value set.

According to an aspect of the present disclosure, an electronic device is provided, the electronic device includes the display driving device.

In a possible implementation manner, the electronic device includes a display, a smart phone, or a portable device.

In a possible implementation manner, the display includes any one of a liquid crystal display, an organic light emitting diode display, a quantum dot light emitting diode display, a mini light emitting diode display, and a micro light emitting diode display.

In the embodiment of the present disclosure, when the display duration of the displayed image reaches the duration threshold, the preset duration is used as the time interval to change the pixel value of at least one color channel of the displayed image to obtain the intermediate image corresponding to each time interval , at each time interval, drive the display panel to display according to the intermediate image, which can improve or even eliminate the image sticking problem caused by the display image displayed for a long time, and the embodiment of the present disclosure does not change the display of the display image on the screen Position, by changing the pixel value of at least one color channel of the displayed image, the dynamic display of the displayed image can be realized. Under the premise of effectively avoiding the phenomenon of screen burn-in, the screen will not jump, shake, etc., and the required software and hardware resources are relatively small. Low, with the characteristics of high efficiency and low cost.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings.

Description of drawings

The accompanying drawings here are incorporated into the description and constitute a part of the present description. These drawings show embodiments consistent with the present disclosure, and are used together with the description to explain the technical solution of the present disclosure.

FIG. 1 shows a flowchart of a display driving method according to an embodiment of the present disclosure.

FIG. 2 shows a flowchart of a display driving method according to an embodiment of the present disclosure.

3a and 3b show schematic diagrams of image display.

FIG. 4 shows a block diagram of a display driving device according to an embodiment of the present disclosure.

FIG. 5 shows a block diagram of a display driving device according to an embodiment of the present disclosure.

Fig. 6 shows a block diagram of an electronic device according to an embodiment of the present disclosure.

Fig. 7 shows a block diagram of an electronic device according to an embodiment of the present disclosure.

Detailed ways

Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

In describing the present disclosure, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, and It is not to indicate or imply that a device or element referred to must have a particular orientation, be constructed, or operate in a particular orientation, and thus should not be construed as limiting the present disclosure.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present disclosure, "plurality" means two or more, unless otherwise specifically defined.

In this disclosure, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection unless otherwise clearly defined and limited. , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present disclosure according to specific situations.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the term "at least one" herein means any one of a variety or any combination of at least two of the more, for example, including at least one of A, B, and C, which may mean including from A, Any one or more elements selected from the set formed by B and C.

In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, components and circuits that are well known to those skilled in the art have not been described in detail so as to obscure the gist of the present disclosure.

Please refer to FIG. 1 , which shows a flowchart of a display driving method according to an embodiment of the present disclosure.

The method is applied to a display panel, as shown in Figure 1, the method includes:

Step S11, when the display duration of the displayed image reaches the duration threshold, the preset duration is used as the time interval to change the pixel value of at least one color channel of the displayed image to obtain intermediate images corresponding to each time interval, wherein , the intermediate images of adjacent time intervals are different;

Step S12, at each time interval, drive the display panel to display according to the intermediate image.

In the embodiment of the present disclosure, when the display duration of the displayed image reaches the duration threshold, the preset duration is used as the time interval to change the pixel value of at least one color channel of the displayed image to obtain the intermediate image corresponding to each time interval , at each time interval, driving the display panel to display according to the intermediate image can improve or even eliminate the image sticking (Image Sticking/Setention) problem caused by the display image displayed for a long time, and the embodiment of the present disclosure does not change the display The display position of the image on the screen, by changing the pixel value of at least one color channel of the displayed image, realizes the dynamic display of the displayed image. Under the premise of effectively avoiding the phenomenon of screen burn-in, the screen will not jump, shake, etc., and The required software and hardware resources are low, and it has the characteristics of high efficiency and low cost.

In one example, effect sticking may also be referred to as image sticking, screen burn-in, and the like.

In a possible implementation manner, the display panel may include any one or more of a liquid crystal display panel, an organic light emitting diode display panel, a quantum dot light emitting diode display panel, a mini light emitting diode display panel, and a micro light emitting diode display panel The combination.

The method of the embodiment of the present disclosure can also be applied to an electronic device including the display panel. For example, the electronic device can include a terminal, a server, etc. In an example, the terminal is also called user equipment (User Equipment, UE), mobile Station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), etc., is a device that provides voice and/or data connectivity to users, for example, handheld devices with wireless connection functions, vehicle-mounted devices, etc. At present, examples of some terminals are: mobile phone (Mobile Phone), tablet computer, notebook computer, handheld computer, mobile Internet device (Mobile Internet device, MID), wearable device, virtual reality (Virtual Reality, VR) device, augmented reality ( Augmented reality (AR) equipment, wireless terminals in Industrial Control, wireless terminals in Selfdriving, wireless terminals in Remote Medical Surgery, wireless terminals in Smart Grid , wireless terminals in Transportation Safety, wireless terminals in Smart City, wireless terminals in Smart Home, wireless terminals in Internet of Vehicles, etc.

In a possible implementation manner, step S11 changes the pixel value of at least one color channel of the displayed image to obtain intermediate images corresponding to each time interval, which may include:

Obtain the pixel adjustment value corresponding to each time interval;

The pixel value of at least one color channel of the display image is adjusted according to the pixel adjustment value to obtain an intermediate image corresponding to each time interval.

In a possible implementation manner, the obtaining the pixel adjustment value corresponding to each time interval may include:

Use a random number generator to generate random numbers to obtain pixel adjustment values corresponding to each time period; or

Obtain the pixel adjustment value corresponding to each time interval from the preset adjustment value set.

In an example, the embodiment of the present disclosure may use a timer for timing, and when the timing reaches a preset duration, the pixel value of at least one color channel of the displayed image is changed to obtain an intermediate image of the next time interval, And drive the display panel to display. The embodiment of the present disclosure does not limit the specific size of the preset duration, which can be set by those skilled in the art according to needs, for example, the preset duration can be 30 seconds (s), and when the timing reaches 30 seconds, the display image The pixel value of at least one color channel is changed to obtain an intermediate image of the next time interval, and the display panel is driven to display.

In an example, the embodiment of the present disclosure may first obtain pixel adjustment values corresponding to multiple time intervals, and change the pixel value of at least one color channel of the displayed image according to the pixel adjustment value when the timing duration reaches a preset duration , to obtain the intermediate image of the next time interval, and drive the display panel to display it.

In an example, adjusting the pixel value of at least one color channel of the display image according to the pixel adjustment value may include:

The pixel adjustment value is added to the pixel value of at least one color channel of the display image, so as to adjust the pixel value of the at least one color channel of the display image.

In an example, the embodiment of the present disclosure may set multiple adders to adjust the pixel value of each pixel. Exemplarily, an adding unit composed of multiple adders may combine the display data corresponding to at least one color channel with the The pixel adjustment value is added to obtain the adjusted pixel value.

In an example, the random number generator can generate random numbers based on the clock, or can generate random numbers according to other arbitrary parameters. The embodiment of the present disclosure does not limit the specific implementation of the random number generator. The specific generation of random numbers The manner is also not limited, and those skilled in the art can implement it according to related technologies.

In an example, the embodiments of the present disclosure may also set a storage module in advance to store a set of preset adjustment values, and when acquiring pixel adjustment values from the set of preset adjustment values, it may be acquired cyclically or randomly. Ways, for example, the preset adjustment value combined with 16 pixel adjustment values, the embodiment of the present disclosure can follow a certain order (for example, from reg[0]->reg[1]->...-> reg[14]->reg[15]->reg[0]->reg[1]) obtains the pixel adjustment value from the storage module, and can also be randomly selected.

The pixel adjustment value is exemplarily introduced below with a specific example.

Assuming that the display image display duration exceeds 32 frames, for the initial input data (a certain pixel of the display image), that is, the (R, G, B) pixel values (253, 253, 253) respectively, can be adjusted each time At this time, one or more adjustment values of each pixel channel are increased or decreased to realize dynamic adjustment. In the embodiment of the present disclosure, different pixel adjustment values (also called adjustment levels, such as Level0～ Level15), when adjusting the initial input data sequentially, you can set an increased or decreased adjustment value as needed, and the size of the adjustment value can be obtained cyclically from the preset adjustment value set, or randomly obtained, or obtained in other ways, Exemplarily, the adjustment value can be fixed (for example, the adjustment value is 1), for example, each pixel channel can be reduced by 1 from the first frame to the 16th frame, and each pixel channel can be sequentially reduced from the 17th frame to the 32nd frame Increase by 1 (as shown in Table 1); of course, you can also select any number of frames to adjust according to your needs, such as selecting 4 frames first to reduce the pixel channels of each frame by 1 in turn, and then to each of the subsequent three frames The pixel channel of the frame increases by 11 in turn, and the cycle is adjusted repeatedly (as shown in Table 2). Table 1

data	adjustment value	R	G	B
initial input data	the	253	253	253
Output data in frame 1	Level 0	252	252	252
Output data in frame 2	Level 1	251	251	251
Output data at frame 3	Level 2	250	250	250
Output data at frame 4	Level 3	249	249	249
Output data at frame 5	Level 4	248	248	248
Output data at frame 6	Level 5	247	247	247
Output data at frame 7	Level 6	246	246	246
Output data at frame 8	Level 7	245	245	245
Output data at frame 9	Level 8	244	244	244
Output data at frame 10	Level 9	243	243	243
Output data at frame 11	Level 10	242	242	242
Output data at frame 12	Level 11	241	241	241
Output data at frame 13	Level 12	240	240	240
Output data at frame 14	Level 13	239	239	239
Output data at frame 15	Level 14	238	238	238
Output data at frame 16	Level 15	237	237	237
Output data at frame 17	Level 14	238	238	238
Output data at frame 18	Level 13	239	239	239
Output data at frame 19	Level 12	240	240	240
Output data at frame 20	Level 11	241	241	241
Output data at frame 21	Level 10	242	242	242
Output data at frame 22	Level 9	243	243	243
Output data at frame 23	Level 8	244	244	244
Output data at frame 24	Level 7	245	245	245
Output data at frame 25	Level 6	246	246	246
Output data at frame 26	Level 5	247	247	247
Output data at frame 27	Level 4	248	248	248
Output data at frame 28	Level 3	249	249	249
Output data at frame 29	Level 2	250	250	250
Output data at frame 30	Level 1	251	251	251
Output data at frame 31	Level 0	252	252	252

Table 2

data	adjustment value	R	G	B
initial input data	the	253	253	253
Output data in frame 1	Level 0	252	252	252
Output data in frame 2	Level 1	251	251	251
Output data at frame 3	Level 2	250	250	250
Output data at frame 4	Level 3	249	249	249
Output data at frame 5	Level 4	250	250	250
Output data at frame 6	Level 5	251	251	251
Output data at frame 7	Level 6	252	252	252
Output data at frame 8	Level 7	253	253	253
Output data at frame 9	Level 8	252	252	252
Output data at frame 10	Level 9	251	251	251
Output data at frame 11	Level 10	250	250	250
Output data at frame 12	Level 11	249	249	249
Output data at frame 13	Level 12	250	250	250
Output data at frame 14	Level 13	251	251	251
Output data at frame 15	Level 14	252	252	252
Output data at frame 16	Level 15	253	253	253
Output data at frame 17	Level 14	252	252	252
Output data at frame 18	Level 13	251	251	251
Output data at frame 19	Level 12	250	250	250
Output data at frame 20	Level 11	249	249	249
Output data at frame 21	Level 10	250	250	250
Output data at frame 22	Level 9	251	251	251
Output data at frame 23	Level 8	252	252	252
Output data at frame 24	Level 7	253	253	253
Output data at frame 25	Level 6	252	252	252
Output data at frame 26	Level 5	251	251	251
Output data at frame 27	Level 4	250	250	250
Output data at frame 28	Level 3	249	249	249
Output data at frame 29	Level 2	250	250	250
Output data at frame 30	Level 1	251	251	251
Output data at frame 31	Level 0	252	252	252

Of course, the above example is exemplary, and those skilled in the art can also use other adjustment modes to adjust the displayed image, such as the adjustment value for each adjustment can be different, or set different adjustment values for different regions of the image. In an example, for different color regions of an image, the embodiments of the present disclosure may have different adjustment ranges, so as to improve the adaptability and flexibility of processing, improve user experience, and improve the authenticity of image display, for example, displaying image The adjustment value of the pixels in the non-color area may be greater than the adjustment value of the colored pixels, for example, the adjustment value of the black area may be greater than the adjustment value of the color area.

In one example, a storage module may include a computer-readable storage medium, which may be a tangible device that can hold and store instructions for use by an instruction execution device. A computer readable storage medium may be, for example, but is not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer diskettes, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or flash memory), static random access memory (SRAM), programmable read-only memory (PROM), portable compact disk read-only memory (CD-ROM), digital versatile disk (DVD), memory stick, floppy disk, mechanically encoded device , such as a punched card with instructions stored thereon, or a raised structure in a groove, and any suitable combination of the foregoing. In one example, the storage module may also include a register bank.

In an example, in the set of preset adjustment values, the size of each pixel adjustment value may be different, or the pixel adjustment values at intervals may be the same, but the adjacent pixel adjustment values are different. For this, the embodiment of the present disclosure does not Do limited. The embodiment of the present disclosure does not limit the specific size of each pixel adjustment value in the preset adjustment value set, which can be determined by those skilled in the art according to needs or actual conditions.

In one example, when the display image is an RGB image, the embodiments of the present disclosure can directly adjust each pixel of the display image in RGB image format to obtain an intermediate image, and according to the pixels of the R, G, and B channels of the intermediate image The value generates a driving signal to drive the corresponding pixel light.

In a possible implementation manner, the driving the display panel to display according to the intermediate image includes: performing color space conversion processing on the intermediate image when the intermediate image is not an RGB image, The intermediate image is converted into an RGB image; a drive signal is generated according to the intermediate image after color space conversion, and the display panel is driven to perform dynamic display at intervals of a preset time.

The embodiment of the present disclosure can process display images of various image formats, and has high adaptability.

Please refer to FIG. 2 , which shows a flowchart of a display driving method according to an embodiment of the present disclosure.

In a possible implementation manner, as shown in FIG. 2, the method may further include:

Step S21, converting the initial display image from the RGB color space to another color space to obtain the display image.

The other color spaces include color spaces other than the RGB color space, for example, may include YUV color space, HSV color space, HSL color space, or YCbCr color space, etc., which are not limited in this embodiment of the present disclosure.

The embodiment of the present disclosure does not limit the specific conversion method of the color space, and those skilled in the art can implement it according to related technologies.

In this embodiment of the disclosure, the display image is obtained by converting the initial display image from the RGB color space to another color space, so as to process the image in the other color space, which can improve the efficiency of pixel adjustment. Of course, the embodiment of the disclosure can also The RGB image is directly processed, which is not limited in this embodiment of the present disclosure.

The embodiment of the present disclosure can trigger the processing of the displayed image according to the display duration of the displayed image. For example, the display duration can be counted to obtain the display duration. When the display duration is greater than or equal to the duration threshold, the processing of each channel pixel of the image can be triggered. Of course, the display duration may also be determined according to the set screen saver time and the time when the electronic device is not operated, which is not limited in this embodiment of the present disclosure.

In a possible implementation manner, the image format of the displayed image includes any one of RGB image, YUV image, HSV image, HSL image and YCbCr image, etc., and the embodiment of the present disclosure does not limit the image format of the displayed image . In one example, taking an RGB image as an example, embodiments of the present disclosure may adjust at least one of the R channel, G channel, and B channel of the displayed image; taking an HSV image as an example, embodiments of the present disclosure may adjust the H channel of the displayed image. channel, S channel, and V channel to adjust at least one; taking the HSL image as an example, the embodiment of the present disclosure can adjust at least one of the H channel, S channel, and L channel of the displayed image; taking the YCbCr image as an example, the present disclosure An embodiment may adjust at least one of the Y channel, the Cb channel, and the Cr channel of the displayed image. Through the above methods, the embodiments of the present disclosure can transform the original physical space changes into color space changes, keep the position of the overall picture on the panel unchanged, achieve the rotation of pixel content, delay or place image burn-in, afterimage occurrence, improving user experience.

Please refer to Fig. 3a and Fig. 3b, Fig. 3a and Fig. 3b show schematic diagrams of image display.

In one example, if the display panel displays the display image shown in Figure 3a for a long time, the display panel will leave a screen afterimage as shown in Figure 3b. When other images are displayed on the display surface, it will inevitably affect other images. Accurate display will affect and reduce the viewing experience of the user. Through the above method, the embodiment of the present disclosure only adjusts the display color and gray scale of the pixel, and does not change the display position of each element in a frame of image on the screen. Among them, the preset duration is used as the interval to make a frame of image present a variety of color configurations or grayscale tires, avoiding the phenomenon of screen afterimage and burn-in when the image is displayed statically for a long time on the screen, for example, it can eliminate The afterimage on the screen as shown in FIG. 3 b makes the subsequent display of other displayed images more accurate and the user experience is better.

It can be understood that the above-mentioned method embodiments mentioned in this disclosure can all be combined with each other to form a combined embodiment without violating the principle and logic. Due to space limitations, this disclosure will not repeat them. Those skilled in the art can understand that, in the above method in the specific implementation manner, the specific execution order of each step should be determined according to its function and possible internal logic.

Please refer to FIG. 4 , which shows a block diagram of a display driving device according to an embodiment of the present disclosure.

The device can be applied to a display panel, as shown in Figure 4, the device includes:

The adjustment module 10 is configured to: change the pixel value of at least one color channel of the displayed image by taking the preset duration as the time interval when the display duration of the displayed image reaches the duration threshold, and obtain the pixel values corresponding to each time interval intermediate images, wherein the intermediate images of adjacent time intervals are different;

The driving module 20 is connected to the adjusting module, and is configured to drive the display panel to display according to the intermediate image at each time interval.

In the embodiment of the present disclosure, when the display duration of the displayed image reaches the duration threshold, the preset duration is used as the time interval to change the pixel value of at least one color channel of the displayed image to obtain the intermediate image corresponding to each time interval , at each time interval, drive the display panel to display according to the intermediate image, which can improve or even eliminate the image sticking problem caused by the display image displayed for a long time, and the embodiment of the present disclosure does not change the display of the display image on the screen Position, by changing the pixel value of at least one color channel of the displayed image, the dynamic display of the displayed image can be realized. Under the premise of effectively avoiding the phenomenon of screen burn-in, the screen will not jump, shake, etc., and the required software and hardware resources are relatively small. Low, with the characteristics of high efficiency and low cost.

Please refer to FIG. 5 , which shows a block diagram of a display driving device according to an embodiment of the present disclosure.

In a possible implementation manner, as shown in FIG. 5, the adjustment module 10 may include:

An acquisition unit 110, configured to acquire pixel adjustment values corresponding to each time interval;

The adjustment unit 120 is configured to adjust the pixel value of at least one color channel of the display image according to the pixel adjustment value to obtain an intermediate image corresponding to each time interval. In one example, the acquisition unit 110 may include the aforementioned random number generator, a storage module, and of course a processing component to control each device or unit. In one example, the processing component includes but is not limited to Processor alone, or discrete components, or a combination of processors and discrete components. The processor may include a controller in an electronic device having the function of executing instructions, and the processor may be implemented in any suitable manner, for example, by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs) ), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic components. Inside the processor, the executable instructions can be executed by hardware circuits such as logic gates, switches, application specific integrated circuits (ASIC), programmable logic controllers, and embedded microcontrollers.

In an example, the adjusting unit 120 may include the aforementioned adding unit, so as to add and subtract the pixel adjustment value to the pixel value of at least one color channel of the display image.

In a possible implementation manner, the acquiring unit 110 is further configured to:

Use a random number generator to generate random numbers to obtain pixel adjustment values corresponding to each time period; or

Obtain the pixel adjustment value corresponding to each time interval from the preset adjustment value set.

In a possible implementation manner, the acquiring pixel adjustment values corresponding to each time interval includes:

Use a random number generator to generate random numbers to obtain pixel adjustment values corresponding to each time period; or

Obtain the pixel adjustment value corresponding to each time interval from the preset adjustment value set.

In a possible implementation manner, the driving the display panel to display according to the intermediate image includes: performing color space conversion processing on the intermediate image when the intermediate image is not an RGB image, The intermediate image is converted into an RGB image; a drive signal is generated according to the intermediate image after color space conversion, and the display panel is driven to perform dynamic display at intervals of a preset time.

In a possible implementation manner, the device may also include:

The conversion module is used to convert the initial display image from the RGB color space to other color spaces to obtain the display image.

In a possible implementation manner, the image format of the display image includes any one of RGB image, YUV image, HSV image, HSL image and YCbCr image.

The embodiments of the present disclosure can effectively solve the problems that may occur when the display panel displays static patterns for a long time without changing the display position of a frame of image on the display panel and only dynamically changing the display color or gray scale of its pixels. Image retention problem.

According to an aspect of the present disclosure, an electronic device is provided, the electronic device includes the display driving device.

In a possible implementation manner, the electronic device includes a display, a smart phone, or a portable device.

In a possible implementation manner, the display includes any one of a liquid crystal display, an organic light emitting diode display, a quantum dot light emitting diode display, a mini light emitting diode display, and a micro light emitting diode display.

In some embodiments, the functions or modules included in the device provided by the embodiments of the present disclosure can be used to execute the methods described in the method embodiments above, and its specific implementation can refer to the description of the method embodiments above. For brevity, here No longer.

Electronic devices may be provided as terminals, servers, or other forms of devices.

Please refer to FIG. 6 , which shows a block diagram of an electronic device according to an embodiment of the present disclosure.

For example, the electronic device 800 may be a terminal such as a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, or a personal digital assistant.

6, electronic device 800 may include one or more of the following components: processing component 802, memory 804, power supply component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814 , and the communication component 816.

The processing component 802 generally controls the overall operations of the electronic device 800, such as those associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above method. Additionally, processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802 .

The memory 804 is configured to store various types of data to support operations at the electronic device 800 . Examples of such data include instructions for any application or method operating on the electronic device 800, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.

The power supply component 806 provides power to various components of the electronic device 800 . Power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for electronic device 800 .

The multimedia component 808 includes a screen providing an output interface between the electronic device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or swipe action, but also detect duration and pressure associated with the touch or swipe action. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. When the electronic device 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a microphone (MIC), which is configured to receive external audio signals when the electronic device 800 is in operation modes, such as call mode, recording mode and voice recognition mode. Received audio signals may be further stored in memory 804 or sent via communication component 816 . In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.

Sensor assembly 814 includes one or more sensors for providing status assessments of various aspects of electronic device 800 . For example, the sensor component 814 can detect the open/closed state of the electronic device 800, the relative positioning of components, such as the display and the keypad of the electronic device 800, the sensor component 814 can also detect the electronic device 800 or a Changes in position of components, presence or absence of user contact with electronic device 800 , electronic device 800 orientation or acceleration/deceleration and temperature changes in electronic device 800 . Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. Sensor assembly 814 may also include an optical sensor, such as a complementary metal-oxide-semiconductor (CMOS) or charge-coupled device (CCD) image sensor, for use in imaging applications. In some embodiments, the sensor component 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

The communication component 816 is configured to facilitate wired or wireless communication between the electronic device 800 and other devices. The electronic device 800 can access a wireless network based on a communication standard, such as a wireless network (WiFi), a second generation mobile communication technology (2G) or a third generation mobile communication technology (3G), or a combination thereof. In an exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wide Band (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, electronic device 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation for performing the methods described above.

In an exemplary embodiment, there is also provided a non-volatile computer-readable storage medium, such as the memory 804 including computer program instructions, which can be executed by the processor 820 of the electronic device 800 to implement the above method.

Please refer to FIG. 7 , which shows a block diagram of an electronic device according to an embodiment of the present disclosure.

For example, electronic device 1900 may be provided as a server. Referring to FIG. 7 , electronic device 1900 includes processing component 1922 , which further includes one or more processors, and a memory resource represented by memory 1932 for storing instructions executable by processing component 1922 , such as application programs. The application programs stored in memory 1932 may include one or more modules each corresponding to a set of instructions. In addition, the processing component 1922 is configured to execute instructions to perform the above method.

Electronic device 1900 may also include a power supply component 1926 configured to perform power management of electronic device 1900, a wired or wireless network interface 1950 configured to connect electronic device 1900 to a network, and an input-output (I/O) interface 1958 . The electronic device 1900 can operate based on the operating system stored in the memory 1932, such as a server operating system (Windows Server ^™ ), a graphical user interface-based operating system (Mac OS X ^™ ), a multi-user and multi-process computer operating system (Unix ^™ ), A free and open source Unix-like operating system (Linux ^™ ), an open source Unix-like operating system (FreeBSD ^™ ), or the like.

In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium, such as the memory 1932 including computer program instructions, which can be executed by the processing component 1922 of the electronic device 1900 to implement the above method.

The present disclosure can be a system, method and/or computer program product. A computer program product may include a computer readable storage medium having computer readable program instructions thereon for causing a processor to implement various aspects of the present disclosure.

A computer readable storage medium may be a tangible device that can retain and store instructions for use by an instruction execution device. A computer readable storage medium may be, for example, but is not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer diskettes, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or flash memory), static random access memory (SRAM), compact disc read only memory (CD-ROM), digital versatile disc (DVD), memory stick, floppy disk, mechanically encoded device, such as a printer with instructions stored thereon A hole card or a raised structure in a groove, and any suitable combination of the above. As used herein, computer-readable storage media are not to be construed as transient signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., pulses of light through fiber optic cables), or transmitted electrical signals.

Computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or downloaded to an external computer or external storage device over a network, such as the Internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and/or edge servers. A network adapter card or a network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in each computing/processing device .

Computer program instructions for performing the operations of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or Source or object code written in any combination, including object-oriented programming languages—such as Smalltalk, C++, etc., and conventional procedural programming languages—such as the “C” language or similar programming languages. Computer readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server implement. In cases involving a remote computer, the remote computer can be connected to the user computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (such as via the Internet using an Internet service provider). connect). In some embodiments, an electronic circuit, such as a programmable logic circuit, field programmable gate array (FPGA), or programmable logic array (PLA), can be customized by utilizing state information of computer-readable program instructions, which can Various aspects of the present disclosure are implemented by executing computer readable program instructions.

Aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It should be understood that each block of the flowcharts and/or block diagrams, and combinations of blocks in the flowcharts and/or block diagrams, can be implemented by computer-readable program instructions.

These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine such that when executed by the processor of the computer or other programmable data processing apparatus , producing an apparatus for realizing the functions/actions specified in one or more blocks in the flowchart and/or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium, and these instructions cause computers, programmable data processing devices and/or other devices to work in a specific way, so that the computer-readable medium storing instructions includes An article of manufacture comprising instructions for implementing various aspects of the functions/acts specified in one or more blocks in flowcharts and/or block diagrams.

It is also possible to load computer-readable program instructions into a computer, other programmable data processing device, or other equipment, so that a series of operational steps are performed on the computer, other programmable data processing device, or other equipment to produce a computer-implemented process , so that instructions executed on computers, other programmable data processing devices, or other devices implement the functions/actions specified in one or more blocks in the flowcharts and/or block diagrams.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in a flowchart or block diagram may represent a module, a portion of a program segment, or an instruction that includes one or more Executable instructions. In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. It should also be noted that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by a dedicated hardware-based system that performs the specified function or action , or may be implemented by a combination of dedicated hardware and computer instructions.

The computer program product can be specifically realized by means of hardware, software or a combination thereof. In an optional embodiment, the computer program product is embodied as a computer storage medium, and in another optional embodiment, the computer program product is embodied as a software product, such as a software development kit (Software Development Kit, SDK) etc. wait.

Having described various embodiments of the present disclosure above, the foregoing description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and alterations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principle of each embodiment, practical application or improvement of technology in the market, or to enable other ordinary skilled in the art to understand each embodiment disclosed herein.

Claims (12)

1. A display driving method, characterized in that it is applied to a display panel, the method comprising:

   When the display duration of the displayed image reaches the duration threshold, the preset duration is used as the time interval to change the pixel value of at least one color channel of the displayed image to obtain intermediate images corresponding to each time interval, wherein adjacent The intermediate images of the time intervals are different;

   At each time interval, the display panel is driven to display according to the intermediate image.
2. The method according to claim 1, wherein said changing the pixel value of at least one color channel of said display image to obtain an intermediate image corresponding to each time interval comprises:

   Obtain the pixel adjustment value corresponding to each time interval;

   The pixel value of at least one color channel of the display image is adjusted according to the pixel adjustment value to obtain an intermediate image corresponding to each time interval.
3. The method according to claim 2, wherein said obtaining pixel adjustment values corresponding to each time interval comprises:

   Use a random number generator to generate random numbers to obtain pixel adjustment values corresponding to each time period; or

   Obtain the pixel adjustment value corresponding to each time interval from the preset adjustment value set.
4. The method according to claim 1, wherein the driving the display panel to display according to the intermediate image comprises:

   When the intermediate image is not an RGB image, performing color space conversion processing on the intermediate image to convert the intermediate image into an RGB image;

   A drive signal is generated according to the intermediate image after color space conversion, and the display panel is driven to perform dynamic display at preset time intervals.
5. The method according to claim 1, further comprising:

   Converting the initial display image from the RGB color space to another color space to obtain the display image.
6. The method according to claim 1, wherein the image format of the displayed image includes any one of RGB image, YUV image, HSV image, HSL image and YCbCr image.
7. A display driving device is characterized in that it is applied to a display panel, and the device includes:

   An adjustment module, configured to: change the pixel value of at least one color channel of the displayed image with the preset duration as the time interval when the display duration of the displayed image reaches the duration threshold, and obtain the intermediate value corresponding to each time interval images, wherein intermediate images of adjacent time intervals are different;

   A driving module, connected to the adjusting module, configured to drive the display panel to display according to the intermediate image at each time interval.
8. The device according to claim 7, wherein the adjustment module comprises:

   an acquisition unit, configured to acquire pixel adjustment values corresponding to each time interval;

   An adjustment unit, configured to adjust the pixel value of at least one color channel of the display image according to the pixel adjustment value, to obtain intermediate images corresponding to each time interval.
9. The device according to claim 8, wherein the acquisition unit is also used for:

   Use a random number generator to generate random numbers to obtain pixel adjustment values corresponding to each time period; or

   Obtain the pixel adjustment value corresponding to each time interval from the preset adjustment value set.
10. An electronic device, characterized in that the electronic device comprises the display driving device according to any one of claims 7-9.
11. The electronic device according to claim 10, wherein the electronic device comprises a display, a smart phone or a portable device.
12. The electronic device according to claim 11, wherein the display comprises any one of a liquid crystal display, an organic light emitting diode display, a quantum dot light emitting diode display, a mini light emitting diode display and a micro light emitting diode display.

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