CN115831042A

CN115831042A - Image display method and system, display driving device, and storage medium

Info

Publication number: CN115831042A
Application number: CN202310092317.1A
Authority: CN
Inventors: 孟雄飞; 陈弈星; 刘诗瑶
Original assignee: Nanjing Xinshiyuan Electronics Co ltd
Current assignee: Nanjing Xinshiyuan Electronics Co ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-03-21
Anticipated expiration: 2043-02-10
Also published as: CN115831042B

Abstract

The application relates to an image display method and system, a display driving device and a storage medium. The method comprises the following steps: acquiring a target image frame sequence; determining a current image frame from a target image frame sequence, and dividing the current image frame into a plurality of pixel area blocks; marking the characteristic value of each pixel region block of the current image frame to obtain a current characteristic value matrix; determining a last eigenvalue matrix; comparing the current characteristic value matrix with the previous characteristic value matrix, and determining a display pixel area block to be updated of the current image frame according to the comparison result; updating the last eigenvalue matrix; generating mapping pixel data for each pixel of a display pixel area block to be updated; and transmitting the mapping pixel data to an image display device, and displaying the current image frame. By adopting the method, the refresh rate can be obviously reduced, the display power consumption is reduced as much as possible, and the increasingly improved low-power-consumption display requirements are met.

Description

Image display method and system, display driving device, and storage medium

Technical Field

The present application relates to the field of micro-display technologies, and in particular, to an image display method and system, a display driving apparatus, and a storage medium.

Background

With the continuous development of display technology, the performance of the intelligent device is optimized continuously, and meanwhile, a scene with higher requirements on low power consumption appears. Therefore, endurance improvement, low power consumption and energy conservation become the direction of force of numerous terminal manufacturers, the image display device serves as a power consumption consumer in equipment, and the improvement of low power consumption technology becomes a new main stream of competition of display manufacturers.

Conventional methods of reducing power consumption include: dynamically adjusting the backlight brightness of the screen according to the characteristics of the display image; and dynamically switching clocks, power supplies and the like of all logic circuits according to actual needs.

However, the above method has a limited reduction in power consumption, and further reduction in display power consumption is still required.

Disclosure of Invention

In view of the foregoing, it is necessary to provide an image display method and system, a display driving device, and a computer-readable storage medium to reduce display power consumption as much as possible and meet the increasingly high low power consumption display requirements, in view of the above technical problems.

In a first aspect, the present application provides an image display method. The method comprises the following steps: acquiring a target image frame sequence; determining a current image frame from a target image frame sequence, and dividing the current image frame into a plurality of pixel area blocks; marking the characteristic values of a plurality of pixel area blocks of the current image frame to obtain a current characteristic value matrix; determining a last eigenvalue matrix; comparing the current characteristic value matrix with the previous characteristic value matrix, and determining a display pixel area block to be updated of the current image frame according to the comparison result; updating the last eigenvalue matrix; generating mapping pixel data for each pixel of a display pixel area block to be updated; and transmitting the mapping pixel data to a display device, and displaying the current image frame.

In one embodiment, marking feature values of a plurality of pixel region blocks of a current image frame comprises: extracting a characteristic value of each pixel from pixel data of each pixel of a current image frame; respectively generating a characteristic value mean value of each pixel in each pixel area block of the current image frame, and using the characteristic value mean value as a characteristic value of a corresponding pixel area block of the current image frame.

In one embodiment, the method further comprises: and after determining the pixel area block to be updated of the current image frame according to the comparison result, generating a mark to be updated for the pixel area block to be updated of the current image frame.

In one embodiment, updating the last eigenvalue matrix comprises: and updating the eigenvalue of the corresponding position in the previous eigenvalue matrix by using the eigenvalue corresponding to the display pixel area block to be updated in the current eigenvalue matrix to obtain a new previous eigenvalue matrix.

In one embodiment, the method further comprises: after dividing each image frame of the target image frame sequence into a plurality of pixel area blocks, the plurality of pixel area blocks are alternately stored in different storage units in blocks.

In one embodiment, alternately storing the plurality of pixel region blocks in different storage units comprises: storing pixel data of each pixel in a pixel area block of an odd-numbered row in a first storage unit, and storing pixel data of each pixel in a pixel area block of an even-numbered row in a second storage unit; the generation of the mapped pixel data of each pixel in the pixel area block of the previous odd-numbered line or the previous even-numbered line is completed at the time when the storage of the pixel data of each pixel in the pixel area block of the next odd-numbered line or the next even-numbered line is started.

In one embodiment, generating mapped pixel data for each pixel of a display pixel area block to be updated includes: determining the type of the display device and the structure of pixel components in the display device; determining gray scale representation of each display component of each pixel of a display pixel area block to be updated; based on the determined type of display device and the structure of the pixel assembly, mapped pixel data is generated for each pixel of the block of display pixel area to be updated from the grayscale representation.

In a second aspect, the present application further provides a display driving apparatus. The display driving device includes: the acquisition module is used for acquiring a target image frame sequence, determining a current image frame from the target image frame sequence, dividing the current image frame into a plurality of pixel area blocks, marking characteristic values of the plurality of pixel area blocks of the current image frame, and obtaining a current characteristic value matrix; the comparison module is used for determining a previous characteristic value matrix, comparing the current characteristic value matrix with the previous characteristic value matrix, and determining a to-be-updated display pixel area block of the current image frame according to the comparison result; updating the last eigenvalue matrix; the mapping pixel data generation module is used for generating mapping pixel data for each pixel of the display pixel area block to be updated; and the transmission module is used for transmitting the mapping pixel data to the display device so as to display the current image frame.

In a third aspect, the present application further provides an image display system. The image display system comprises a memory and a processor, the memory stores a computer program, and the processor realizes the following steps when executing the computer program: acquiring a target image frame sequence; determining a current image frame from a target image frame sequence, and dividing the current image frame into a plurality of pixel area blocks; marking the characteristic value of each pixel region block of the current image frame to obtain a current characteristic value matrix; determining a last eigenvalue matrix; comparing the current characteristic value matrix with the previous characteristic value matrix, and determining a display pixel area block to be updated of the current image frame according to the comparison result; updating the last eigenvalue matrix; generating mapping pixel data for each pixel of a display pixel area block to be updated; and transmitting the mapping pixel data to a display device to display the current image frame.

In one embodiment, the image display system further includes: a display device including a plurality of pixel components, each of the plurality of pixel components including a plurality of sub-pixel structures; the display device is used for controlling the on-off of each sub-pixel structure of the corresponding pixel component according to the mapping pixel data.

In a fourth aspect, the present application further provides a computer-readable storage medium. A computer readable storage medium having stored thereon a computer program, the computer program being executable by a processor to perform the steps of: acquiring a target image frame sequence; determining a current image frame from a target image frame sequence, and dividing the current image frame into a plurality of pixel area blocks; marking the characteristic value of each pixel region block of the current image frame to obtain a current characteristic value matrix; determining a last eigenvalue matrix; comparing the current characteristic value matrix with the previous characteristic value matrix, and determining a display pixel area block to be updated of the current image frame according to the comparison result; updating the last eigenvalue matrix; generating mapping pixel data for each pixel of a display pixel area block to be updated; and transmitting the mapping pixel data to a display device to display the current image frame.

According to the image display method and system, the display driving device and the computer readable storage medium, the pixel area block to be updated in the current image frame is determined by judging the change conditions of the characteristic values of the corresponding pixels in the current image frame and the last image frame to be displayed, mapping pixel data is generated according to the pixel data of each pixel in the pixel area block to be updated and is sent to the display device to display the current image frame; for pixels except for pixels in a pixel area block to be updated in the current image frame, corresponding mapping pixel data are not generated, and a sending process of the mapping pixel data is not generated, so that the power consumption of the system is greatly reduced. Meanwhile, in the generation process of the mapping pixel data, the pixel data of each image frame is stored in a blocking and alternating mode, so that the processing efficiency of the pixel data is improved, and the output data stream is ensured to be uninterrupted. Further, a pixel component in the display device as a receiver of the mapped pixel data includes a plurality of sub-pixel structures and a plurality of storage elements corresponding to the plurality of sub-pixel structures; the mapping pixel data related to the corresponding sub-pixel structure can be stored through the storage element and transmitted to each sub-pixel structure for displaying, so that the display device can meet the display requirement of low power consumption under the driving of the mapping pixel data.

Drawings

FIG. 1 is a diagram illustrating an exemplary environment in which an image display method may be implemented;

FIG. 2 is a schematic diagram of a memory element in one embodiment;

FIG. 3 is an arrangement of sub-pixel structures in a pixel assembly of a monochrome display device having a uniform sub-pixel structure according to one embodiment;

FIG. 4 is a layout of sub-pixel structures in a pixel assembly of a monochrome display device having non-uniform sub-pixel structures according to one embodiment;

FIG. 5 is a schematic diagram illustrating an arrangement of uniform sub-pixel structures in a pixel element of a color display device with a uniform sub-pixel structure according to an embodiment;

FIG. 6 is a schematic diagram illustrating an arrangement of non-uniform sub-pixel structures in a pixel assembly of a color display device having non-uniform sub-pixel structures according to an embodiment;

FIG. 7 is a flowchart illustrating an exemplary image display method;

FIG. 8 is a diagram illustrating the arrangement of pixel area blocks according to an embodiment;

FIG. 9 is a diagram of an eigenvalue matrix for one embodiment;

FIG. 10 is a flowchart illustrating a feature value extracting step in one embodiment;

FIG. 11 is a flowchart illustrating the mapped pixel generation step in one embodiment;

FIG. 12 is a diagram illustrating the relationship between different display states and corresponding gray levels of sub-pixel structures in a pixel element having a uniform pixel structure for a monochrome display device according to an embodiment;

FIG. 13 is a diagram illustrating the relationship between different illumination states and corresponding gray levels for non-uniform sub-pixel structures within a pixel element of a monochrome display device in accordance with one embodiment;

FIG. 14 is a block diagram showing the construction of a display driving device according to an embodiment;

fig. 15 is an internal structural view of an image display system in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The image display method provided by the embodiment of the application can be applied to the application environment shown in fig. 1. The image display system 100 includes a display driving device 102 and an image display device 104, where the display driving device 102 is configured to obtain original data of an image frame sequence to be displayed from a data source, convert the original data into a target image frame sequence in a required format, generate a driving signal according to the target image frame sequence, and send the driving signal to the image display device 104 for display. The image display device 104 includes a plurality of pixel components. The image display device 104 is used for controlling the display state of the corresponding pixel component according to the driving signal to display. Wherein the drive signals comprise mapped pixel data associated with corresponding pixel elements of the image display device 104.

The image display device 104 includes a display screen using a MICRO display chip for display, which may be, but is not limited to, an LCoS, OLED, MICRO-LED, Q-LED display screen. The display driving apparatus 102 may be implemented by a driving chip independent from the micro display chip, or may be integrated in the micro display chip as a part of the micro display chip. In addition, the display screen related to the image display device 104 can be applied not only to the field of micro display but also to other fields related to display such as mobile phones and pads.

The image display device 104 is roughly classified into a monochrome display device and a color display device by type. Among them, the monochrome display device can perform image display only by adjusting the luminance of one color, and the color display device can generally independently adjust the luminance of display components of respective colors, thereby realizing color image display by a combination of the luminances of the display components of the respective colors.

The pixel assembly may have a variety of structural types. Conventional pixel components applied to monochrome display devices typically have only one display area; conventional pixel elements applied to color display devices typically correspond to only one display area for each component. Monochrome or color display can be achieved by individually adjusting the brightness of each display region by the drive signal (e.g., by adjusting current or voltage).

In order to reduce display power consumption, a novel pixel assembly applied to a monochrome or color display device may be provided. Specifically, for a monochrome display device, the novel pixel assembly has a display area therein, and the display area corresponds to the plurality of sub-pixel structures 1042; for a color display device, the novel pixel assembly has display regions corresponding to the display components, each display region corresponding to a plurality of sub-pixel structures 1042. The sub-pixel structures 1042 can be divided into a uniform sub-pixel structure and a non-uniform sub-pixel structure according to the arrangement of the sub-pixel structures 1042.

FIG. 3 is an arrangement of sub-pixel structures 1042 in a pixel assembly of a monochrome display device having a uniform sub-pixel structure, according to one embodiment.

The pixel assembly in fig. 3 only has a single display area for displaying a single color, the display area has 16 sub-pixel structures 1042 therein, and the areas occupied by the 16 sub-pixel structures 1042 are completely the same. Since the area size ratio occupied by each sub-pixel structure 1042 is the same, under the assumption that the luminance of the sub-pixel structures 1042 conforms to the normal distribution and the luminance of the sub-pixel structures 1042 does not affect each other, each sub-pixel structure 1042 contributes the same to the luminance of the whole pixel element.

FIG. 4 is an arrangement diagram of sub-pixel structures in a pixel assembly of a monochrome display device having a non-uniform sub-pixel structure in one embodiment.

As shown in fig. 4, through a specific process structure, each pixel component may have 4 sub-pixel structures 1042 with different areas, as shown in display areas 1 to 4 in fig. 4. The area ratio of the 4 sub-pixel structures 1042 is 1. Since each new sub-pixel structure 1042 occupies a different area size in proportion, each new sub-pixel structure 1042 contributes a different luminance to the whole pixel, and different gray scale (luminance) gradients can be generated by the combination of the lighting states of the sub-pixel structures 1042.

Fig. 5 is a schematic diagram illustrating an arrangement of sub-pixel structures 1042 in a pixel element having a uniform sub-pixel structure of a color display device according to an embodiment. FIG. 6 is a diagram illustrating an arrangement of sub-pixel structures 1042 in a pixel assembly having a non-uniform sub-pixel structure of a color display device according to an embodiment of the disclosure.

As shown in fig. 5 and 6, one pixel element of the color display device has four display regions, i.e., an R (red) display region, a G (green) display region, a B (blue) display region, and a Y (other color) display region. Wherein, the four display regions of fig. 5 each have 16 uniform sub-pixel structures therein, and the four display regions of fig. 6 each have 4 non-uniform sub-pixel structures therein. By lighting up different sub-pixel structures 1042 in each display region, colors with different gray scale gradients can be displayed in each display region, thereby realizing color display of the whole pixel assembly.

It should be noted that, although in the embodiments shown in fig. 3 and fig. 5, the number of the sub-pixel structures 1042 of each display area in the pixel assembly is 16, and the sub-pixel structures are arranged in a 4 × 4 matrix, this is only exemplary. In other embodiments, the sub-pixel structures 1042 in the pixel assembly can be M × N, where M and N are positive integers, and M may be equal to N or may not be equal to N.

It should be noted that the pixel element of the color display device is not necessarily limited to the case of including RGBY four display regions. In fact, in other embodiments, the Y display area may be replaced by a display area of another color, or may be a display area including only three RGB display areas.

In one embodiment, the pixel assembly of the novel image display device 104 further includes a plurality of storage elements 1043. The plurality of storage elements 1043 are in one-to-one correspondence with the plurality of sub-pixel structures 1042 in the pixel assembly, and are used for storing mapping pixel data related to the corresponding sub-pixel structures 1042 in the driving signal sent by the display driving apparatus 102. FIG. 2 is a schematic diagram of a memory element 1043 in an embodiment.

As shown in fig. 2, the memory element 1043 includes 4N-

type MOS transistors

2121, 2124, 2125, 2126 and 2P-type MOS transistors 2122, 2123. The N-

type MOS transistors

2121 and 2124 are respectively used as a first switch and a second switch, and gates of the N-

type MOS transistors

2121 and 2124 receive an address signal ADDR for turning on when the address signal ADDR is high. P-type MOS transistor 2122 and N-type MOS transistor 2125 are connected to form a first inverter, and P-type MOS transistor 2123 and N-type MOS transistor 2126 are connected to form a second inverter. The first inverter and the second inverter are connected to form a latch, and the latch is respectively connected with the first switching tube and the second switching tube. The specific process of the storage element 1043 for implementing the storage function is as follows: when address signal ADDR is high, N-

type MOS transistors

2121 and 2124, which serve as the first switch and the second switch, respectively, are turned on, and data 1 and data 2 enter the latch formed by

MOS transistors

2122, 2123, 2125, 2126 through N-

type MOS transistors

2121 and 2124, respectively. Since data 1 and data 2 are always opposite to each other, when the address signal ADDR becomes low after data 1 and data 2 enter the memory device, the N-

type MOS transistors

2121 and 2124 serving as the first switch and the second switch, respectively, are turned off, and the latch latches data 1 and data 2 without loss. Output signal 1 and output signal 2 output from the latch are equal to data 1 and data 2, respectively, and output signal 1 and output signal 2 are provided to the corresponding sub-pixel structure 1042 to control the display of the corresponding sub-pixel structure 1042. In one embodiment, the data 1 may represent mapped pixel data associated with the sub-pixel structure 1042 corresponding to the storage element 1043 in the driving signal transmitted by the display driving apparatus 102. In another embodiment, the opposite case may be also true, that is, the data 2 represents the mapped pixel data related to the sub-pixel structure 1042 corresponding to the storage element 1043 in the driving signal sent by the display driving apparatus 102.

With the above novel display device, the display states of the sub-pixel structures 1042 in each pixel element can be respectively controlled (i.e., "on" or "off") by the mapped pixel data in the driving signal, so as to realize the combination of different display states of the sub-pixel structures 1042, thereby realizing different display states of the corresponding pixel elements.

Compared with the conventional monochrome or color display device, the novel monochrome or color display device does not need complicated current or voltage control, can realize monochrome or color display through a simple binary digital signal (for example, a "0" or "1" signal), and can reduce the refresh rate of a display chip adopted by the image display device 104, thereby greatly reducing the display power consumption.

In one embodiment, as shown in fig. 7, an image display method is provided, which is described by taking the method as an example applied to the display driving apparatus 102 in fig. 1, and includes the following steps:

s701: a sequence of target image frames is acquired.

In this step, the target image frame sequence includes a plurality of target image frames, and the target image frame refers to image data of one frame of image that meets the required format requirement.

In one embodiment, acquiring the sequence of target image frames may comprise: the method includes receiving initial data from a data source, and converting the data from the data source into data that conforms to a desired format requirement, i.e., a sequence of target image frames. Wherein the initial data may be retrieved from the data source via the data input interface. The conversion of the data source into data that meets the requirements of the required format may be achieved by the video decoding unit. In a more specific embodiment, the video decoding unit may be implemented by a driver-level decoding chip.

S702: a current image frame is determined from a sequence of target image frames, and the current image frame is divided into a plurality of pixel region blocks.

In this step, the target image frame sequence is usually displayed frame by frame in the order of arrangement of the frames. The current image frame may refer to the image frame being displayed in the sequence of target image frames. An image frame may comprise a plurality of pixels, which may be understood as elementary data elements constituting the image frame, the data in the elementary data elements being referred to as pixel data. The number of pixels included in an image frame is the resolution of the image frame. The pixel area block is an area block composed of a plurality of pixels in one image frame.

In one embodiment, the dividing of the current image frame into a plurality of pixel region blocks may be dividing the current image frame into a plurality of pixel region blocks arranged in a plurality of rows, or into a plurality of pixel region blocks arranged in a plurality of columns, or into a plurality of pixel region blocks arranged in a plurality of rows and a plurality of columns. Preferably, the plurality of pixel region blocks have the same size. As a specific example, if the resolution of each image frame of the target image frame sequence is m × n (i.e. comprises m × n pixels), the original image can be divided equally into several k × j pixel region blocks according to actual needs, where m, n, k, j are positive integers, k is less than or equal to m, j is less than or equal to n, and k × j is less than or equal to m × n.

More specifically, taking a 480 × 270 resolution data source as an example, after converting the HDMI data source data, a target image frame sequence in RGB format may be obtained, where each image frame has 480 × 270 resolution, i.e., includes 480 × 270 pixels. If the image frame after format conversion is selected to be divided equally into 30 rows and 20 columns, the original image is divided equally into 600 pixel area blocks each containing 24 × 9 pixels.

Fig. 8 shows a schematic arrangement diagram of pixel region blocks after dividing a current image frame into 30 rows and 20 columns in one embodiment. Wherein qyi-h represents a corresponding pixel area block, i and h are positive integers, i is more than or equal to 1 and less than or equal to 30, and h is more than or equal to 1 and less than or equal to 20.

It is understood that in other embodiments, the data source may have other resolution values, including but not limited to 480 x 270; the blocking method of the pixel area block includes, but is not limited to, equally dividing the image frame into 30 rows and 20 columns.

S703: and marking the characteristic values of a plurality of pixel area blocks of the current image frame to obtain a current characteristic value matrix.

In this step, marking the feature values of the plurality of pixel region blocks of the current image frame means determining the feature value of each pixel region block of the current image frame. The feature value of each pixel region block of the current image frame may be extracted from the pixel data of each pixel region block. For example, from RGB components in the pixel data or a combination of these components.

And combining the characteristic values corresponding to each pixel region block of the current image frame to obtain a current characteristic value matrix. In other words, each element of the current eigenvalue matrix is an eigenvalue corresponding to each pixel region block of the current image frame. The arrangement of each element in the current eigenvalue matrix should be consistent with the arrangement of each corresponding pixel region block in the current image frame.

Fig. 9 is a schematic diagram illustrating a corresponding current eigenvalue matrix after dividing a current image frame into 30 rows and 20 columns in one embodiment. Wherein tzi-h represents the characteristic value of the corresponding pixel region block, i and h are positive integers, i is more than or equal to 1 and less than or equal to 30, and j is more than or equal to 1 and less than or equal to 20.

S704: the last eigenvalue matrix is determined.

In this step, the previous eigenvalue matrix is used to reflect the global characteristics of all image frames displayed before the current image frame. The arrangement of each element in the previous eigenvalue matrix should be consistent with the arrangement of each element in the current eigenvalue matrix. When the current image frame is the first image frame in the target image frame sequence, the last eigenvalue matrix needs to be initialized because there is no last image frame displayed. The initialization includes assigning initial values to elements in the last eigenvalue matrix. For example, in one embodiment, each element in the last eigenvalue matrix may be set to 0.

S705: and comparing the current characteristic value matrix with the previous characteristic value matrix, and determining a display pixel area block to be updated of the current image frame according to the comparison result.

In this step, the comparison result may refer to a difference degree between corresponding elements in the current eigenvalue matrix and the previous eigenvalue matrix. For example, referring to fig. 9, tz2-3 in the current eigenvalue matrix and tz2-3 in the previous eigenvalue matrix are corresponding elements. When the difference between the corresponding eigenvalue elements of the current eigenvalue matrix and the previous eigenvalue matrix is large, it is indicated that the corresponding pixel region block of the corresponding eigenvalue element in the current image frame needs to be updated and displayed, otherwise, the corresponding pixel region block does not need to be updated and displayed.

In one embodiment, the difference degree may be obtained by comparing the difference between corresponding elements in the current eigenvalue matrix and the previous eigenvalue matrix with a threshold. Accordingly, the comparison result may refer to a size relationship between a difference between corresponding elements in the current eigenvalue matrix and the previous eigenvalue matrix and the threshold. According to the comparison result, when the difference between the corresponding eigenvalue elements in the current eigenvalue matrix and the previous eigenvalue matrix is greater than the threshold, the pixel region block represented by the corresponding eigenvalue elements in the current image frame may be used as the pixel region block to be updated of the current image frame.

In a preferred embodiment, the threshold may be dynamically configured on line according to an overall gray scale variation trend of the acquired target image frame sequence.

It can be understood that, in addition to the above comparison method, other methods may be used to compare the current eigenvalue matrix with the previous eigenvalue matrix, as long as the purpose of determining the difference degree between corresponding eigenvalue elements in the current eigenvalue matrix and the previous eigenvalue matrix can be achieved.

S706: and updating the last eigenvalue matrix.

In this step, updating the previous eigenvalue matrix means updating elements in the previous eigenvalue matrix. Since the subsequent image frame may need to be displayed after the current image frame is displayed, and the current image frame will become a displayed previous image frame relative to the subsequent image frame at this time, the previous eigenvalue matrix needs to be updated, and the previous eigenvalue matrix may be updated based on the current eigenvalue matrix corresponding to the current image frame.

S707: mapping pixel data is generated for each pixel of the display pixel area block to be updated.

In this step, the mapped pixel data serves to control the display state of the pixel elements corresponding to each pixel of the display pixel area block to be updated in the image display device 104. The mapped pixel data may be generated from pixel data for each pixel of the block of display pixel area to be updated.

S708: the mapped pixel data is transmitted to the image display device 104, and the current image frame is displayed.

In the image display method, the image frame in the target image frame sequence is divided into a plurality of pixel area blocks, the display pixel area block to be updated in the current image frame is determined by judging the change conditions of the characteristic values of the corresponding pixel area blocks in the current image frame and the displayed previous image frame, mapping pixel data is generated for each pixel in the display pixel area block to be updated to serve as a driving signal, and the driving signal is sent to the image display device 104 to display the current image frame; for the pixels in the pixel area blocks except the display pixel area block to be updated in the current image frame, corresponding mapping pixel data are not generated, and the sending process of the mapping pixel data is not generated, so that the power consumption of the system is greatly reduced. Meanwhile, the image frame is partitioned, and the characteristic values of the pixel region blocks are compared according to the partitions, so that compared with a pixel-by-pixel characteristic value comparison mode, the calculation amount is greatly reduced, and the system power consumption is further reduced.

In one embodiment, as shown in fig. 10, marking the eigenvalues of a plurality of pixel region blocks of the current image frame, and obtaining the current eigenvalue matrix further comprises:

s1001: a feature value of each pixel is extracted from pixel data of each pixel of a current image frame.

Regarding the pixel data, in general, data of each display component in the pixel data in RGB format is generally represented by an 8-bit 2-ary number, so that each display component can represent 256-level gray scale.

In a preferred embodiment, the Y component in the pixel data of each pixel of the current image frame may be taken as the feature value of each pixel. Wherein, the Y component and the RGB component have the following relations:

wherein the content of the first and second substances,

。

since the Y component is a linear combination of RGB components, the gradation characteristics of the corresponding pixel can be better reflected.

Alternatively, in other embodiments, other components besides the Y component may be used as the feature value of each pixel of the current image frame.

S1002: and respectively generating a characteristic value mean value of each pixel in each pixel area block of the current image frame, and using the characteristic value mean value as a characteristic value of a corresponding pixel area block of the current image frame.

As an example of this step, the step is explained with an image frame including 30 × 20 pixel region blocks each including 24 × 9 pixels. Since the feature value of each pixel of the current image frame in this step is already found in step S1001, the mean value of the feature values of 24 × 9 pixels in any one pixel region block (e.g., the pixel region block qy1-1 in fig. 8) of the 30 × 20 pixel region blocks can be found, and the mean value of the feature values of 24 × 9 pixels is the feature value of the corresponding pixel region block (i.e., qy 1-1). Further, the feature values of all the 30 × 20 pixel region blocks in the current image frame may be found.

In this embodiment, the feature value of each pixel area block can be determined relatively quickly and conveniently by extracting the feature value of each pixel and generating the mean value of the feature value of each pixel in each pixel area block.

In one embodiment, comparing the current eigenvalue matrix with the previous eigenvalue matrix, and determining the to-be-updated display pixel area block of the current image frame according to the comparison result further comprises: after determining the pixel area block to be updated, generating a mark to be updated for the pixel area block to be updated of the current image frame.

In this embodiment, the mark to be updated is generated for the pixel region block to be updated of the current image frame, which can help to determine the position of the pixel region block to be updated more quickly and accurately when the eigenvalue matrix of the previous image frame is updated and when the pixel region block to be updated is subjected to subsequent processing.

In one embodiment, updating the last eigenvalue matrix further comprises: and updating the characteristic value of the corresponding position in the previous characteristic value matrix by using the characteristic value corresponding to the display pixel area block to be updated in the current characteristic value matrix to obtain a new previous characteristic value matrix.

In this way, since the eigenvalue at the corresponding position in the previous eigenvalue matrix is updated only with the eigenvalue corresponding to the display pixel area block to be updated, the refresh rate can be reduced, thereby reducing power consumption.

In one embodiment, the image display method of the present application further includes: after a current image frame is determined from a target image frame sequence and the current image frame is divided into a plurality of pixel area blocks, the plurality of pixel area blocks are alternately stored in different storage units in blocks.

In this embodiment, the different storage units are preferably dynamic cache units. By alternately storing a plurality of pixel region blocks in different storage units in blocks, the efficiency of pixel data storage can be improved.

Alternatively, in other embodiments, storage may be performed in other ways than block interleaved storage.

As a specific example, in conjunction with fig. 8 and 9, the alternately storing the plurality of pixel area blocks in the different storage units in blocks may include: storing pixel data of pixel area blocks qy1-1 to qy1-20 in a first storage unit, storing pixel data of pixel area blocks qy2-1 to qy2-20 in a second storage unit, storing pixel data of pixel area blocks qy3-1 to qy3-20 in the first storage unit, and so on, and alternately storing the pixel data of each row of pixel area blocks in the first storage unit and the second storage unit, thereby realizing the ping-pong storage operation of the pixel area blocks. The first storage unit and the second storage unit have the same capacity. In a preferred embodiment, the first storage unit and the second storage unit are Random Access Memories (RAMs).

Updating the mapping pixel data of 1 to 20 pixel area blocks qy1-1 to qy1-20 at the moment of starting to store the pixel data of the 41 st pixel area block qy 3-1; at the time of starting to store the pixel data of the 61 st pixel area block qy4-1, updating the mapping pixel data of the 21 st to 40 th pixel area blocks qy2-1 to qy2-20 is completed, and so on.

In this embodiment, by completing the generation of the mapped pixel data of each pixel in the pixel area block of the previous odd-numbered line or the previous even-numbered line at the time of starting the storage of the pixel data of each pixel in the pixel area block of the next odd-numbered line or the next even-numbered line, the generation efficiency of the mapped pixel data can be effectively improved without waiting until the storage of all the pixel area blocks is completed and then starting the generation step of the mapped pixel data.

In one embodiment, as shown in fig. 11, generating the mapping pixel data for each pixel of the display pixel area block to be updated further includes:

s1101: the type of image display device 104 and the structure of pixel components in the image display device 104 are determined.

As described above, the types of the image display device 104 include a monochrome display device and a color display device. The structure of the pixel assembly may include a conventional pixel structure and the aforementioned novel pixel structure, wherein the novel pixel structure may be further divided into a pixel assembly including a uniform sub-pixel structure and a pixel assembly including a non-uniform sub-pixel structure.

S1102: a gray scale representation of each display component of each pixel of the block of display pixel area to be updated is determined.

As mentioned above, the pixel data of each pixel in RGB format at least includes three display components of R, G, and B, or may further include other display components (e.g., Y display components), and the data of each display component is usually represented by an 8-bit 2-ary number, that is, the 8-bit 2-ary number is a gray scale representation of the corresponding display component.

S1103: based on the determined type of the image display device 104 and the structural type of the pixel assembly, mapped pixel data is generated for each pixel of the block of the display pixel area to be updated from the grayscale representation.

For monochrome or color display devices with conventional pixel elements, a Pulse Width Modulation (PWM) method may be generally used to generate mapping pixel data of corresponding pixels according to pixel data of each pixel of a display pixel area block to be updated.

For monochrome or color display devices having novel pixel components, it is also necessary to generate mapped pixel data of corresponding pixels according to the types of sub-pixel structures (i.e., uniform sub-pixel structures and non-uniform sub-pixel structures) included in each pixel component.

In the following, how to generate the mapping pixel data for each pixel of the display pixel area block to be updated is described for four different cases, i.e., monochrome display device-uniform sub-pixel structure, color display device-uniform sub-pixel structure, monochrome display device-non-uniform sub-pixel structure, and color display device-non-uniform sub-pixel structure.

The first condition is as follows: monochrome display device-uniform sub-pixel structure

In this case, the pixel elements of the image display device 104 include only one color display region, which typically has M × N uniform sub-pixel structures. Wherein, M and N are positive integers, M can be equal to N, or not equal to N.

Accordingly, in one embodiment, the generating of the mapping pixel data for each pixel of the display pixel area block to be updated in step S1103 includes the steps of:

(1) Determining a decimal value n corresponding to the upper X bits of the gray scale representation of the Y component in the pixel data of each pixel of the display pixel area block to be updated, wherein 2 ^X Less than or equal to M × N.

(2) The mapped pixel data is determined such that N of the M × N subpixel structures 1042 are in an on state and the other subpixel structures 1042 are in an off state.

As an example, assuming that there are 4 × 5 uniform sub-pixel structures within the pixel component of the image display device 104, the above steps can be embodied as: firstly, assuming that the high 4 bits of the Y component in the pixel data of one pixel in the display pixel block to be updated are "1010", it can be determined that the high 4 of the Y component in the pixel data of the pixel is 10 as the corresponding decimal value; next, 10 uniform sub-pixel structures are selected from the 4 × 5 uniform sub-pixel structures within the pixel assembly, and the corresponding location is assigned a first value (e.g., "1") indicating that it should be in the "on" display state, and the other locations are assigned a second value (e.g., "0") indicating that it should be in the "off" display state.

In particular, when M = N (i.e., having N × N uniform sub-pixel structures within a pixel assembly), mapping pixel data of a corresponding pixel region block may also be generated using a patterning method. The pattern method refers to a method of representing the gray level of an original pixel (the original pixel may be understood as a pixel in a target image frame) by using a region composed of black and white dots in a certain ratio, and the representation method of the gray level of the pixel is called as a pattern.

Accordingly, in one embodiment, when the pixel assembly has N × N uniform sub-pixel structures therein, the generating of the mapping pixel data for each pixel of the display pixel area block to be updated in step S1103 includes the steps of:

(1) And determining a decimal value N corresponding to the high N bits of the gray scale representation of the Y component of the pixel data of each pixel of the display pixel area block to be updated.

(2) And constructing an N multiplied by N standard pattern matrix, comparing N with each element in the N multiplied by N standard pattern matrix respectively, and obtaining mapping pixel data of the corresponding pixel component according to a comparison result.

Wherein, the comparison process includes: when n is greater than the corresponding element, the comparison result is marked as a first value, otherwise, the comparison result is marked as a second value different from the first value. Thus, the mapped pixel data of a pixel element will be a matrix of the first value and the second value. The first and second values are substantially indicative of the display states of the sub-pixel structures 1042 in the corresponding pixel element.

As an example, assuming that there are 4 × 4 uniform sub-pixel structures within the pixel component of the image display device 104, the above steps can be embodied as:

firstly, a decimal value n corresponding to the high 4 bits of the Y component in the pixel data of each pixel of the display pixel area block to be updated is determined. Next, a 4 × 4 standard pattern matrix is used

Implementing pixel region block dataAnd (6) mapping. Wherein n × n standard pattern matrix

Can be derived by a recursive formula:

，

since the 2 × 2 standard pattern matrix is:

，

therefore, the 4 × 4 standard pattern matrix is:

。

the upper 4 bits Y [7 ] of the Y component in the pixel data of each pixel of the display pixel area block to be updated]Corresponding decimal value n respectively and matrix

Is compared, when n is greater than the corresponding value, the first value "1" is assigned to the corresponding position of the mapped pixel data, otherwise the second value "0" is assigned to the corresponding position.

FIG. 12 is a diagram illustrating the relationship between different display states and corresponding gray levels of sub-pixel structures 1042 in a pixel element having a uniform pixel structure of a monochrome display device according to an embodiment.

As shown in fig. 12, the 4 × 4 standard pattern can represent 17-level gray (luminance) in total, and the decimal value n corresponding to the upper 4 bits Y [7 ] of the Y component corresponds to the gray value. A first value "1" obtained according to the comparison result substantially indicates that the sub-pixel structure 1042 at the corresponding position should be in the "on" display state, and a second value "0" substantially indicates that the sub-pixel structure 1042 at the corresponding position should be in the "off" display state.

More specifically, if the upper 4 bits of the Y component in the pixel data of one pixel in the display pixel block to be updated are "1010", and the corresponding decimal value is 10, the corresponding gray scale should be 10. At this time, the matrix corresponding to the gray level 10 in fig. 12 may be used as the mapped pixel data of the pixel in the display pixel block to be updated. Meanwhile, the matrix corresponding to the gray scale 10 indicates that, when displaying according to the mapped pixel data, in the corresponding pixel element, the sub-pixel structure 1042 at the position of the row 1, the row 4, the row 2, the row 1 and the row 3, the row 2, the row 4, the row 1 and the row 3 should correspond to the "off" display state, and the other sub-pixel structures 1042 should correspond to the "on" display state.

In the case where the pixel assembly of the image display apparatus 104 has only one display area and the display area has 4 × 4 uniform sub-pixel structures, the original resolution of the target image frame is assumed to be m × n, and the resolution of the output image is assumed to be 4m × 4n.

It should be noted that the above method for generating the mapped pixel data using the 4 × 4 standard pattern matrix is merely exemplary. In other embodiments, the dimension of the standard pattern matrix may be changed according to actual requirements, including but not limited to 4 × 4, and the numerical arrangement in the standard pattern matrix may be modified according to actual display effects, including but not limited to the above-mentioned specific numerical arrangement.

It should be noted that the above-mentioned operations of setting the first value to "1" and setting the second value to "0" are merely exemplary, and in actual operation, the first value may be set to "0" and the second value may be set to "1", and it is only necessary to ensure that the first value can make the corresponding sub-pixel structure 1042 in the display state of "on" and the second value can make the corresponding sub-pixel structure 1042 in the display state of "off".

Case two: color display device-uniform sub-pixel structure

In this case, the image display device 104 has a plurality of display regions within the pixel assembly, each display region having an M × N uniform sub-pixel structure. Wherein, M and N are both positive integers, M may be equal to N, or not equal to N. At this time, the mapped pixel data may be determined with reference to case one.

(1) Respectively determining decimal values corresponding to high X bits of gray scale representation of each display component of pixel data of the pixels to be updated for specific pixels to be updated in all the pixels to be updated, wherein 2 ^X Less than or equal to M × N.

(2) The mapped pixel data is determined such that N subpixel structures 1042 are in an on state and the other subpixel structures 1042 are in an off state in the M × N subpixel structures of each display area.

In particular, when M = N (i.e., having N × N uniform sub-pixel structures within a pixel assembly), mapping pixel data of a corresponding pixel region block may also be generated using a patterning method. At this time, the generating of the mapped pixel data for each pixel of the display pixel region block to be updated in step S1103 includes the steps of:

(1) And respectively determining decimal values corresponding to the high N bits of the gray scale representation of each display component of the pixel data of the pixel to be updated according to the specific pixel to be updated in all the pixels to be updated.

(2) And constructing an N multiplied by N standard pattern matrix, comparing decimal values corresponding to high N bits expressed by the gray scale of each display component with each element in the N multiplied by N standard pattern matrix respectively, and obtaining mapping pixel data according to the comparison result.

In particular, in the case where there are 4 display areas each configured with a 4 × 4 uniform sub-pixel structure in the pixel assembly of the image display device, it is assumed that the original resolution of the target image frame is m × n and the resolution of the output image is 8m × 8n.

Case three: monochrome display device-non-uniform sub-pixel structure

In this case, the pixel assembly of the monochrome display device usually has N non-uniform sub-pixel structures therein, and the area ratio of each non-uniform sub-pixel structure is 1 ^(N-1) 。

Accordingly, in one embodiment, the generating of mapping pixel data for each pixel of the block of the display pixel area to be updated in step S1103 includes: and taking the upper N bits of the gray scale representation of the Y component in the pixel data of each pixel of the display pixel area block to be updated as mapping pixel data.

As an example, assuming that the pixel assembly of the image display apparatus 104 has 4 non-uniform sub-pixel structures therein and is arranged in a 2 × 2 matrix, the arrangement of the non-uniform sub-pixel structures in the pixel assembly will be as shown in fig. 4, where the area ratio of each non-uniform sub-pixel structure is 1. According to the above steps, it is necessary to take the upper 4 bits of the gradation representation of the Y component in the pixel data of each pixel of the display pixel area block to be updated as the mapped pixel data.

FIG. 13 is a diagram illustrating the relationship between different display states and corresponding gray levels of non-uniform sub-pixel structures in a pixel element of a monochrome display device in accordance with one embodiment.

As shown in fig. 13, the pixel component of the monochrome display device having 2 × 2 non-uniform sub-pixel structures can display 16-level gray scale (brightness), and the high 4-bit value of the gray scale representation of the Y component in the pixel data in the display pixel area block to be updated corresponds to the gray scale value. In fig. 13, the area labeled 0 indicates that the corresponding sub-pixel structure 1042 is in the "off" display state, and the area labeled 1 indicates that the corresponding sub-pixel structure 1042 is in the "on" display state.

More specifically, when the high 4-bit value of the gray scale representation of the Y component in the pixel data in the display pixel area block to be updated is "0001", the gray scale value thereof is 1, and the corresponding mapped pixel data is "0001". At this time, according to fig. 13, of the 4 non-uniform sub-pixel structures corresponding to the pixel components, only the non-uniform sub-pixel structure corresponding to the upper left corner region is turned on, that is, the value of the sub-pixel structure of the mapped pixel data in the upper left corner region corresponds to "1", and the values of the three non-uniform sub-pixel structures in the other regions correspond to "0", that is, the three non-uniform sub-pixel structures are in the "off" display state.

In the case where only one display area is included in the pixel assembly of the

image display device

104 and 4 non-uniform sub-pixel structures of 2 × 2 are configured in the display area, assuming that the original resolution of the target image frame is m × n, the resolution of the output image is 2m × 2n.

Case four: color display device-non-uniform sub-pixel structure

In this case, a plurality of display regions are usually provided in the pixel assembly of the color display device, each display region has N non-uniform sub-pixel structures, and the area ratio of each non-uniform sub-pixel structure is 1 ^(N-1) . At this time, the corresponding numerical values of the mapped pixel data in the respective display regions of the corresponding pixel elements may be determined separately with reference to case three.

Accordingly, in one embodiment, the generating mapped pixel data for each pixel of the display pixel area block to be updated in step S1103 includes: and taking the high N bits of the gray scale representation of each display component in the pixel data of each pixel of the display pixel area block to be updated as mapping pixel data.

Among the pixel data of each pixel in the display pixel region block to be updated, the mapped pixel data obtained from the high N bits expressed by the gray scale of each display component is used to control the display state of each sub-pixel structure 1042 in each display region of the pixel assembly.

In the case where the pixel assembly of the color display device includes four display regions RGBY, each of which is configured with 4 non-uniform sub-pixel structures of 2 × 2, the resolution of the output image is 4m × 4n, assuming that the original resolution of the target image frame is m × n.

In this embodiment, through the above manner, for different types of the image display apparatus 104 and different structure types of the pixel components in the image display apparatus 104, generating corresponding mapping pixel data for the pixels in each to-be-updated display pixel region block can be realized, so as to control the display of each sub-pixel structure 1042 of each corresponding pixel component in the image display apparatus 104, so as to realize the display of the current image frame.

It should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a part of the steps or stages in other steps.

For example, in one embodiment, step S703 (i.e., marking the feature values of a plurality of pixel region blocks of the current image frame to obtain a current feature value matrix) may be performed alternately or alternately with at least a portion of each of step S704 (i.e., determining the previous feature value matrix), step S705 (i.e., comparing the current feature value matrix and the previous feature value matrix, determining the pixel region block to be updated of the current image frame according to the comparison result), and step S706 (i.e., updating the previous feature value matrix).

As an example, when the pixel data of the pixel area block qy1-1 of the current image frame is stored, an intermediate variable in the characteristic value extraction process can be synchronously obtained, after the storage of the pixel area block qy1-1 is finished, a characteristic value corresponding to the pixel area block qy1-1 of the current image frame can be marked, if the value is tz1-1 current, the difference value between the tz1-1 current and the tz1-1 in the previous characteristic value matrix is compared, if the value exceeds the artificially set threshold, the corresponding element value in the previous characteristic value matrix is updated to be tz1-1 current, and an update mark of the corresponding pixel area block is generated at the same time. If the value is lower than the threshold value threshold set by people, the corresponding element value in the characteristic value matrix is kept unchanged, and meanwhile, the updating mark of the corresponding pixel area block is not generated. By analogy, the same operation can be performed on each pixel region block without waiting until the feature values of all pixel region blocks of the current image frame are marked, and then performing the operation of comparing the current feature value matrix with the previous feature value matrix.

Based on the same inventive concept, the embodiment of the present application further provides a display driving apparatus for implementing the image display method as described above. The implementation scheme for solving the problem provided by the display driving apparatus is similar to the implementation scheme described in the above method, so specific limitations in one or more embodiments of the display driving apparatus provided below can be referred to the limitations of the image display method in the foregoing, and details are not described herein again.

In one embodiment, as shown in fig. 14, there is provided a display driving apparatus 102 including: an obtaining module 1401, a block storing module 1402, a feature value extracting module 1403, a comparing module 1404, a mapped pixel data generating module 1405 and a transmitting module 1406, wherein:

an obtaining module 1401 configured to obtain a target image frame sequence.

A block storage module 1402, configured to determine a current image frame from the target image frame sequence, and divide the current image frame into a plurality of pixel region blocks.

A feature value extracting module 1403, configured to mark feature values of multiple pixel region blocks of the current image frame to obtain a current feature value matrix.

The comparing module 1404 is configured to determine a previous eigenvalue matrix, compare the current eigenvalue matrix with the previous eigenvalue matrix, determine a to-be-updated display pixel region block of the current image frame according to the comparison result, and update the previous eigenvalue matrix.

A mapping pixel data generating module 1405, configured to generate mapping pixel data for each pixel of the display pixel area block to be updated.

The transmitting module 1406 is configured to transmit the mapped pixel data to the image display device to display the current image frame.

In one embodiment, the feature value extraction module 1403 includes a pixel feature value extraction unit and a pixel region block feature value extraction unit. The pixel feature value extraction unit is configured to extract a feature value of each pixel from pixel data of each pixel of a current image frame. The pixel area block feature value extracting unit is used for respectively generating a feature value mean value of each pixel in each pixel area block of the current image frame, and marking the feature value of the corresponding pixel area block of the current image frame by using the feature value mean value.

In one embodiment, the comparison module 1404 is further configured to: and after determining the pixel area block to be updated of the current image frame according to the comparison result, generating a mark to be updated for the pixel area block to be updated of the current image frame.

In one embodiment, the comparison module 1404 is further configured to: and updating the eigenvalue of the corresponding position in the previous eigenvalue matrix by using the eigenvalue corresponding to the display pixel area block to be updated in the current eigenvalue matrix to obtain a new previous eigenvalue matrix.

In one embodiment, the block storage module 1402 is further configured to: after dividing each image frame of the target image frame sequence into a plurality of pixel area blocks, the plurality of pixel area blocks are alternately stored in different storage units in blocks.

In one embodiment, the block storage module 1402 is further configured to: storing pixel data of each pixel in a pixel area block of an odd-numbered row in a first storage unit, and storing pixel data of each pixel in a pixel area block of an even-numbered row in a second storage unit; the generation of the mapped pixel data of each pixel in the pixel area block of the previous odd-numbered line or the previous even-numbered line is completed at the time when the storage of the pixel data of each pixel in the pixel area block of the next odd-numbered line or the next even-numbered line is started.

In one embodiment, the mapped pixel data generation module 1405 is further configured to: determining the type of the image display device and the structure of pixel components in the image display device; based on the determined type of image display device and the structure of the pixel assembly, mapped pixel data is generated for each pixel of the display pixel area block to be updated.

The modules in the display driving device can be wholly or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent of a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, an image display system is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 15. The image display system includes a processor, a memory, an input/output interface, a communication interface, an image display device, and an input device. The processor, the memory and the input/output interface are connected by a system bus, and the communication interface, the image display device and the input device are connected by the input/output interface to the system bus. Wherein the processor of the image display system is configured to provide computing and control capabilities. The memory of the image display system includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The input/output interface of the image display system is used for exchanging information between the processor and an external device. The communication interface of the image display system is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement an image display method. The image display device of the image display system is used for forming a visual visible picture and can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the image display system can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the image display system, an external keyboard, a touch pad or a mouse and the like.

It will be understood by those skilled in the art that the configuration shown in fig. 15 is a block diagram of only a portion of the configuration relevant to the present application, and does not constitute a limitation on the image display system to which the present application is applied, and a particular image display system may include more or less components than those shown in the drawings, or combine certain components, or have a different arrangement of components.

In one embodiment, an image display system is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the steps of the above method embodiments when executing the computer program.

In one embodiment, the image display system further comprises an image display device. The image display device comprises a plurality of pixel components, each pixel component of the plurality of pixel components comprises a plurality of sub-pixel structures; the image display device is used for controlling the on-off of each sub-pixel structure of the corresponding pixel component according to the mapping pixel data.

In one embodiment, a computer-readable storage medium is provided, comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the above-described method embodiments when executing the computer program.

In an embodiment, a computer program product is provided, comprising a computer program which, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, databases, or other media used in the embodiments provided herein can include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high-density embedded nonvolatile Memory, resistive Random Access Memory (ReRAM), magnetic Random Access Memory (MRAM), ferroelectric Random Access Memory (FRAM), phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others. The databases referred to in various embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the various embodiments provided herein may be, without limitation, general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, or the like.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not to be understood as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. An image display method, characterized in that the method comprises:

acquiring a target image frame sequence;

determining a current image frame from the target image frame sequence, and dividing the current image frame into a plurality of pixel area blocks;

marking the characteristic values of the pixel area blocks of the current image frame to obtain a current characteristic value matrix;

determining a last eigenvalue matrix;

comparing the current characteristic value matrix with the previous characteristic value matrix, and determining a display pixel area block to be updated of the current image frame according to the comparison result;

updating the last eigenvalue matrix;

generating mapping pixel data for each pixel of the display pixel area block to be updated;

and transmitting the mapping pixel data to an image display device to display the current image frame.

2. The method of claim 1, wherein said marking feature values of said plurality of pixel region blocks of a current image frame comprises:

extracting a characteristic value of each pixel from pixel data of each pixel of a current image frame;

respectively generating a characteristic value mean value of each pixel in each pixel area block of the current image frame, and using the characteristic value mean value as a characteristic value of a corresponding pixel area block of the current image frame.

3. The method of claim 1, further comprising:

and after determining the pixel area block to be updated of the current image frame according to the comparison result, generating a mark to be updated for the pixel area block to be updated of the current image frame.

4. The method of claim 1, wherein the updating the previous eigenvalue matrix comprises:

and updating the eigenvalue of the corresponding position in the previous eigenvalue matrix by using the eigenvalue corresponding to the display pixel area block to be updated in the current eigenvalue matrix to obtain a new previous eigenvalue matrix.

5. The method of claim 1, further comprising:

after dividing each image frame of the target image frame sequence into a plurality of pixel region blocks, the plurality of pixel region blocks are alternately stored in different storage units in blocks.

6. The method of claim 5, wherein the alternately storing the plurality of pixel area blocks in different storage units comprises:

storing pixel data of each pixel in a pixel area block of an odd-numbered row in a first storage unit, and storing pixel data of each pixel in a pixel area block of an even-numbered row in a second storage unit;

the generation of the mapped pixel data of each pixel in the pixel area block of the previous odd-numbered line or the previous even-numbered line is completed at the time when the storage of the pixel data of each pixel in the pixel area block of the next odd-numbered line or the next even-numbered line is started.

7. The method according to claim 1, wherein the generating mapped pixel data for each pixel of the block of display pixel area to be updated comprises:

determining the type of the image display device and the structure of pixel components in the image display device;

determining gray scale representation of each display component of each pixel of the display pixel area block to be updated;

generating mapped pixel data for each pixel of the block of display pixel area to be updated from the grayscale representation based on the determined type of image display device and structure of pixel components.

8. A display driving apparatus, comprising:

the acquisition module is used for acquiring a target image frame sequence;

the characteristic value extraction module is used for determining a current image frame from the target image frame sequence, dividing the current image frame into a plurality of pixel region blocks, marking characteristic values of the plurality of pixel region blocks of the current image frame and obtaining a current characteristic value matrix;

the comparison module is used for determining a previous eigenvalue matrix, comparing the current eigenvalue matrix with the previous eigenvalue matrix, and determining a to-be-updated display pixel area block of the current image frame according to the comparison result; updating the last eigenvalue matrix;

a mapping pixel data generating module, configured to generate mapping pixel data for each pixel of the display pixel area block to be updated;

and the transmission module is used for transmitting the mapping pixel data to an image display device so as to display the current image frame.

9. An image display system comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 7.

10. The system of claim 9, further comprising:

an image display device including a plurality of pixel components, each of the plurality of pixel components including a plurality of sub-pixel structures; and the image display device is used for controlling the on-off of each sub-pixel structure of the corresponding pixel component according to the mapping pixel data.

11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.