Micro display screen

Abstract

The invention provides a micro display screen, and relates to the technical field of micro display. According to the scheme, the geometric arrangement of the pixel electrodes correspondingly connected with all the pixel circuits is adjusted while low power consumption is guaranteed, that is, all the pixel electrodes in the same pixel electrode group are arranged in a central symmetry mode, so that the pixel electrodes are more symmetrical and uniform, the brightness difference caused by inconsistent areas or unreasonable distribution of the pixel electrodes is avoided, and the display quality is improved. Meanwhile, an input video source is analyzed through a data processing module, the state values of the pixel electrodes correspondingly connected with all the pixel circuits are generated, and all the pixel electrodes are driven to be lightened based on the state values of the pixel electrodes correspondingly connected with all the pixel circuits, so that it is ensured that when each pixel electrode is lightened, all the pixel electrodes are lightened; the stability of the visual center can be kept, and the problem that the visual center drifts in a micro display screen provided by a related technology is solved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a micro display screen. Background Art

[0002] In low-power display systems, such as smart watches and e-book readers, extending battery life is an important goal. Typically, this is achieved by reducing the power consumption of the micro-display system to reduce battery consumption and extend battery life.

[0003] In related technologies, in order to reduce power consumption, multiple pixel circuits are generally used to jointly complete the display of a certain grayscale depth, so as to reduce the workload of a single pixel circuit, thereby reducing the refresh rate and ultimately achieving the purpose of saving power consumption.

[0004] However, since the positions of the pixel electrodes corresponding to the pixel circuits are different, when multiple pixel circuits jointly complete grayscale display, the positions of the pixel electrodes involved in the work may change, causing the visual center of the entire display unit to shift. Summary of the Invention

[0005] The purpose of the present invention is to provide a micro display screen to address the above-mentioned deficiencies in the prior art, so as to solve the problem that the visual center of the micro display screen provided by the related art may be offset.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are as follows:

[0007] In a first aspect, an embodiment of the present application provides a micro display screen, comprising: a data processing module, a plurality of pixel circuit groups, and a plurality of pixel electrode groups; the plurality of pixel circuit groups are located in the same layer of the micro display screen, the plurality of pixel electrode groups are located in the same layer of the micro display screen, and the plurality of pixel circuit groups and the plurality of pixel electrode groups are located in different layers;

[0008] The plurality of pixel circuit groups are arranged in a two-dimensional manner of M rows and N columns;

[0009] Each of the pixel electrode groups includes k pixel electrodes, and the k pixel electrodes in the same pixel electrode group are arranged in a centrally symmetrical structure; each of the pixel circuit groups includes k pixel circuits, and the k pixel circuits are arranged in a two-dimensional manner in L rows and Q columns;

[0010] One end of each pixel circuit in the pixel circuit group is connected to a target pixel electrode in the corresponding pixel electrode group, and the other end of each pixel circuit in the pixel circuit group is connected to a common electrode;

[0011] The output end of the data processing module is connected to the control end of each pixel circuit;

[0012] The input end of the data processing module is used to access the video source data to be displayed, and process the video source data to generate control signals for all pixel circuits in each pixel circuit group, so that all pixel circuits in each pixel circuit group drive the target pixel electrodes in the pixel electrode group corresponding to all pixel circuits in each pixel circuit group to light up under the action of the control signal.

[0013] Optionally, each of the pixel electrode groups includes 4 pixel electrodes, each of the pixel circuit groups includes 4 pixel circuits, and the 4 pixel circuits included in each of the pixel circuit groups are arranged in a two-dimensional manner of 2 rows and 2 columns.

[0014] Optionally, all pixel electrodes in each of the pixel electrode groups are pixel electrodes of the same primary color; and all pixel circuits in each of the pixel circuits are pixel circuits of the same primary color.

[0015] Optionally, the ratio of areas of adjacent pixel electrodes in the same pixel electrode group is 2.

[0016] Optionally, the state value of the pixel electrode includes 0 or 1.

[0017] Optionally, the centrally symmetrical structure includes: a square, a rectangle, a hexagon or a circle.

[0018] Optionally, the control signal includes: a state value of a pixel electrode;

[0019] The processing of the video source data to generate control signals for all pixel circuits in each pixel circuit group includes:

[0020] determining the number of pixel electrodes in the pixel electrode group and the ratio of areas of adjacent pixel electrodes;

[0021] The state value of the target pixel electrode in the pixel electrode group corresponding to all pixel circuits in the pixel circuit group is determined according to the grayscale value of the video source data, the number of pixel electrodes in the pixel electrode group and the ratio of the areas of adjacent pixel electrodes.

[0022] Optionally, the structure of each pixel circuit in the same pixel circuit group includes: L-type or field-type.

[0023] Optionally, the micro display screen further comprises: a substrate layer, a liquid crystal layer and a base;

[0024] The liquid crystal layer is located at the bottom of the substrate layer, the layer where the multiple pixel electrode groups are located is located at the bottom of the liquid crystal layer, the layer where the multiple pixel circuit groups are located is located at the bottom of the layer where the multiple pixel electrode groups are located, and is located on the top of the base;

[0025] A common electrode is provided in the substrate layer.

[0026] The beneficial effects of this application are:

[0027] The present application provides a micro display screen, which proposes adjusting the geometric arrangement of pixel electrodes connected to all pixel circuits while ensuring low power consumption, such as all pixel electrodes in the same pixel electrode group are arranged in a centrally symmetrical manner, making them more symmetrical and uniform, avoiding brightness differences caused by inconsistent pixel electrode areas or unreasonable distribution. At the same time, the input video source is analyzed through a data processing module to generate state values of pixel electrodes connected to all pixel circuits, and based on the state values of pixel electrodes connected to all pixel circuits, each pixel electrode is driven to light up, so as to ensure that the stability of the visual center is maintained when each pixel electrode is lit, thereby solving the problem of visual center drift in the micro display screen provided by the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 Schematic diagram of the layout structure of pixel electrodes on a micro display screen provided for related technology Figure 1 ;

[0030] Figure 2 Schematic diagram of the layout structure of pixel electrodes on a micro display screen provided for related technology Figure 2 ;

[0031] Figure 3 A schematic structural diagram of a micro display screen provided in this application;

[0032] Figure 4 is a schematic diagram of the layers where multiple pixel circuit groups and multiple pixel electrode groups are located;

[0033] Figure 5 A schematic diagram of the structure of another micro display screen provided in this application;

[0034] Figure 6 A schematic structural diagram of another micro display screen provided in this application;

[0035] Figure 7 A schematic diagram of a square pixel electrode provided in this application;

[0036] Figure 8 A schematic diagram of a rectangular pixel electrode provided in this application;

[0037] Figure 9 A schematic diagram of a hexagonal pixel electrode provided in this application;

[0038] Figure 10 This is a schematic diagram of the layer structure in a micro display screen provided in this application. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of illustration and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowcharts can be implemented out of sequence, and steps without logical context can be reversed or implemented simultaneously. In addition, those skilled in the art, under the guidance of the contents of this application, can add one or more other operations to the flowchart, or remove one or more operations from the flowchart.

[0040] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0041] Before introducing the technical solution provided by this application, the terms involved in this application are first explained.

[0042] First, the background technology involved in this application is introduced.

[0043] In the field of display technology, especially in OLED displays, the structural design of pixel circuits and pixel electrodes has a significant impact on display quality, power consumption, and visual stability. Generally, the design of pixel electrodes needs to consider the following aspects:

[0044] 1. Refresh rate and power consumption: By optimizing the pixel electrode area and layout, the screen refresh rate can be reduced, thereby reducing power consumption;

[0045] 2. Visual stability: Ensure that the geometric arrangement of pixel electrodes does not cause visual center drift or instability perceived by the human eye.

[0046] In related technologies, in order to reduce power consumption, multiple pixel circuits are generally used to jointly complete the display of a certain grayscale depth, so as to reduce the workload of a single pixel circuit, thereby reducing the refresh rate and ultimately achieving the purpose of saving power consumption.

[0047] refer to Figure 1 and Figure 2 As shown in FIG, there are two common low-power micro display screen layout diagrams provided in the related art. Figure 1 As shown, in the first layout structure, the positional relationship between each pixel electrode and the pixel circuit corresponds one to one, and the area of each pixel electrode is the same; the layout structure is relatively simple, the manufacturing process is easy to implement, and the luminous intensity of each pixel is consistent; and the advantages of this layout structure are: since all pixel electrodes have the same area, theoretically the brightness of each pixel is consistent, which helps to maintain the overall uniformity of the display screen, and by optimizing the total area of the pixel electrodes, the screen refresh rate can be reduced, thereby reducing power consumption.

[0048] Continue to refer Figure 2 As shown, in the second layout structure, the areas of each pixel electrode are not exactly the same. Each pixel circuit still corresponds to a pixel electrode, but the areas of different pixel electrodes may be different. This design can adjust the area of the pixel electrode according to the actual display content, further optimize power consumption and display effects, and significantly reduce the overall power consumption of the screen by reducing the pixel electrode area in non-essential areas.

[0049] However, the above two layout methods have the following disadvantages:

[0050] 1. In the first layout structure, although the pixel electrodes have the same area, if the geometric position relationship of the pixel electrodes is not properly optimized, it may cause the visual center to be unstable. For example, at certain viewing angles, the human eye may perceive the image center to be offset, especially in dynamic images.

[0051] 2. In the second layout structure, the unequal pixel electrode areas may result in different luminous intensities across different pixels. This difference can exacerbate the phenomenon of visual center drift, especially in high-contrast or dynamic images.

[0052] Therefore, in both of the above-mentioned layout structures, there may be a problem of visual center drift. The reasons are as follows:

[0053] 1. Geometric position deviation: If the physical arrangement of pixel electrodes does not conform to the visual habits of the human eye (such as symmetry or uniform distribution), it may cause the visual center to shift.

[0054] 2. Uneven brightness: Even if the pixel electrode areas are the same or different, if the luminous intensity is unevenly distributed, it will cause the visual center to drift.

[0055] 3. Dynamic picture effect: In fast-moving pictures, the visual center drift phenomenon is more obvious, affecting the user experience.

[0056] In response to the problem of unstable visual center drift in related technologies, the present application proposes to adjust the geometric arrangement of pixel electrodes corresponding to all pixel circuits while ensuring low power consumption, so as to make them more symmetrical and uniform, and avoid brightness differences caused by inconsistent pixel electrode areas or unreasonable distribution. At the same time, the input video source is analyzed through the data processing module to generate state values of pixel electrodes corresponding to all pixel circuits, and based on the state values of pixel electrodes corresponding to all pixel circuits, each pixel electrode is driven to light up to ensure that the visual center can be kept stable when each pixel electrode is lit, thereby solving the problem of visual center drift in the micro display screen provided by related technologies.

[0057] The structure of the micro display screen of the present application is described in detail below through multiple embodiments.

[0058] refer to Figure 3 As shown in FIG, it is a schematic diagram of the structure of the micro display screen provided by this application, such as Figure 3 As shown, the micro display screen includes: a data processing module, multiple pixel circuit groups and multiple pixel electrode groups.

[0059] The plurality of pixel circuit groups may be arranged in a pixel circuit module, and the plurality of pixel electrode groups may be arranged in a pixel electrode group.

[0060] Wherein, the plurality of pixel circuit groups are located in the same layer of the micro display screen, the plurality of pixel electrode groups are located in the same layer of the micro display screen, and the plurality of pixel circuit groups and the plurality of pixel electrode groups are located in different layers. For example, Figure 4 As shown, multiple pixel circuit groups are located in the M2 layer of the micro display screen, and multiple pixel electrode groups are located in the M1 layer.

[0061] The plurality of pixel circuit groups are arranged in a two-dimensional manner of M rows and N columns; illustratively, the plurality of pixel circuit groups are arranged in a two-dimensional manner of 5 rows and 6 columns.

[0062] Each of the pixel electrode groups includes: k pixel electrodes, and the k pixel electrodes in the same pixel electrode group are arranged in a centrally symmetrical structure; exemplarily, each pixel electrode group includes 6 pixel electrodes, and the 6 pixel electrodes in the same pixel electrode group are arranged in a centrally symmetrical structure, such as the 6 pixel electrodes in the first pixel electrode group are arranged in a circularly symmetrical structure. In this way, no matter which pixel electrode is lit, the visual center of the display screen is located at the center point, ensuring the stability of the visual center.

[0063] Each of the pixel circuit groups includes: k pixel circuits, and the k pixel circuits are arranged in a two-dimensional manner of L rows and Q columns; exemplarily, each pixel circuit group includes 6 pixel circuits, that is, the number of pixel circuits included in each pixel circuit group is consistent with the number of pixel electrodes included in the pixel electrode group, that is, each pixel circuit is connected to the pixel electrode one-to-one; at the same time, the 6 pixel circuits in the same pixel circuit group can be arranged in a two-dimensional manner of 3 rows and 2 columns.

[0064] Optionally, multiple pixel circuits in the same row can be grouped as a pixel circuit group, or multiple pixel circuits in the same column can be grouped as a pixel circuit group, that is, multiple pixel circuits in adjacent rows and columns are grouped together and connected to the target pixel electrode in the corresponding pixel electrode group.

[0065] One end of each pixel circuit in the pixel circuit group is connected to the target pixel electrode in the corresponding pixel electrode group, and the other end of each pixel circuit in the pixel circuit group is connected to the common electrode; for example, referring to Figure 4 As shown, one end of each pixel circuit in pixel circuit group 1 is respectively connected to the target pixel electrode in pixel electrode group 1. For example, pixel circuit group 1 includes: pixel circuit 11, pixel circuit 12, pixel circuit 21, pixel circuit 22, pixel electrode 1, pixel electrode 2, pixel electrode 3 and pixel electrode 4 in pixel electrode group 1, one end of pixel circuit 11 is connected to pixel electrode 1, one end of pixel circuit 12 is connected to pixel electrode 2, one end of pixel circuit 21 is connected to pixel electrode 3, and one end of pixel circuit 22 is connected to pixel electrode 4. At this point, the connection between each pixel circuit and the corresponding pixel electrode is realized. After receiving the pixel electrode status value sent by the data processing module, pixel circuit 11 drives pixel electrode 1 in pixel electrode group 1 corresponding to pixel circuit 11 to light up under the action of the pixel electrode status value, and is combined with the silicon-based substrate chip through the subsequent process to complete the monochrome or color low-power display of the micro display system.

[0066] Among them, the post-process display materials can be liquid crystal, LED, OLED, micro LED and Q-LED.

[0067] Continue to refer Figure 3As shown, the output end of the data processing module is connected to the control end of each pixel circuit;

[0068] The input end of the data processing module is used to access the video source data to be displayed, and process the video source data to generate control signals for all pixel circuits in each pixel circuit group, so that all pixel circuits in each pixel circuit group drive the target pixel electrodes in the pixel electrode group corresponding to all pixel circuits in each pixel circuit group to light up under the action of the control signal.

[0069] In one feasible method, a segment of video source data includes a picture frame containing RGB color information. The data processing module processes the video source data to generate control signals for all pixel circuits in each pixel circuit group, wherein the control signals include: column drive signals, row drive signals and pixel electrode state values. The column drive signals and row drive signals are used to control the working order of each pixel circuit, thereby avoiding confusion or delay in the display image; the pixel electrode state values are in accordance with the geometric position relationship of the centrally symmetrical pixel circuit module, thereby ensuring that each pixel circuit can accurately display the corresponding content.

[0070] Then, the control signals of all pixel circuits in each pixel circuit group are sent down to each pixel circuit. Each pixel circuit in each pixel circuit group works in sequence according to the specific order represented by its own column drive signal and row drive signal, and drives the pixel electrodes corresponding to each pixel circuit to light up according to its own pixel electrode state value, thereby finally realizing the display of the image. For example, if the grayscale value of the video source data is 1, the pixel electrode state values of each pixel circuit in pixel circuit group 1 are respectively 0 for pixel circuit 11, 1 for pixel circuit 12, 0 for pixel circuit 21, and 0 for pixel circuit 22; after receiving its own pixel electrode state value, pixel circuit 12 drives the pixel electrode 2 corresponding to pixel circuit 12 to light up, realizing the correct grayscale display, and at the same time, ensuring the stability of the visual center of the display image and the image quality.

[0071] Therefore, in the present application, by optimizing the layout of each pixel electrode in the pixel electrode group corresponding to each pixel circuit in each pixel circuit group, that is, each pixel electrode in the same pixel electrode group adopts a centrally symmetrical design, the stability of the visual center can be ensured even at a low refresh rate; at the same time, by precisely controlling each pixel electrode in the pixel electrode group corresponding to each pixel circuit in each pixel circuit group, low-power consumption display of monochrome or color is achieved.

[0072] In summary, the embodiment of the present application provides a micro display screen, which proposes to adjust the geometric arrangement of pixel electrodes corresponding to all pixel circuits while ensuring low power consumption, such as all pixel electrodes in the same pixel electrode group are arranged in a centrally symmetrical manner, making them more symmetrical and uniform, avoiding brightness differences caused by inconsistent pixel electrode areas or unreasonable distribution. At the same time, the input video source is analyzed through a data processing module to generate state values of pixel electrodes corresponding to all pixel circuits, and based on the state values of pixel electrodes corresponding to all pixel circuits, each pixel electrode is driven to light up to ensure that the stability of the visual center is maintained when each pixel electrode is lit, thereby solving the problem of visual center drift in the micro display screen provided by the related technology.

[0073] Optionally, each pixel electrode group includes four pixel electrodes, each pixel circuit group includes four pixel circuits, and the four pixel circuits included in each pixel circuit group are arranged in a two-dimensional manner of two rows and two columns.

[0074] In one achievable way, continue to refer to Figure 4 As shown, in order to support the display of high grayscale video source data, exemplarily, the grayscale value of the video source data is 16 grayscales, and it is proposed that each pixel electrode group can include 4 pixel electrodes, and each pixel circuit group also includes 4 pixel circuits, and each pixel circuit in each pixel circuit group is correspondingly connected to the target pixel electrode in the corresponding pixel electrode group, such as pixel electrode 1, pixel electrode 2, pixel electrode 3 and pixel electrode 4 in pixel electrode group 1, pixel circuit group 1 includes: pixel circuit 11, pixel circuit 12, pixel circuit 21, pixel circuit 22, one end of pixel circuit 11 is connected to pixel electrode 1 in pixel electrode group 1, one end of pixel circuit 12 is connected to pixel electrode 2, one end of pixel circuit 21 is connected to pixel electrode 3, and one end of pixel circuit 22 is connected to pixel electrode 4.

[0075] The four pixel circuits included in each pixel circuit group are arranged in a two-dimensional manner of two rows and two columns. In this way, the connection layout between each pixel circuit and the corresponding pixel electrode can be more reasonable.

[0076] Optionally, all pixel electrodes in each of the pixel electrode groups are pixel electrodes of the same primary color; and all pixel circuits in each of the pixel circuit groups are pixel circuits of the same primary color.

[0077] In one achievable manner, as referenced Figure 5As shown, all pixel electrodes in pixel electrode group 1 are red primary color pixel electrodes, all pixel electrodes in pixel electrode group 2 are green primary color pixel electrodes, and all pixel electrodes in pixel electrode group 3 are blue primary color pixel electrodes; and all pixel circuits in pixel circuit group 1 are red primary color pixel circuits, all pixel circuits in pixel circuit group 2 are green primary color pixel circuits, and all pixel circuits in pixel circuit group 3 are blue primary color pixel circuits.

[0078] Each red primary color pixel circuit in the pixel circuit group 1 is connected to the corresponding red primary color pixel electrode in the pixel electrode group 1, such as the red primary color pixel circuit 11 is connected to the corresponding red primary color pixel electrode 1 in the pixel electrode group 1, the red primary color pixel circuit 12 is connected to the corresponding red primary color pixel electrode 2 in the pixel electrode group 1, the red primary color pixel circuit 21 is connected to the corresponding red primary color pixel electrode 3 in the pixel electrode group 1, and the red primary color pixel circuit 22 is connected to the corresponding red primary color pixel electrode 4 in the pixel electrode group 1; similarly, each primary color circuit in other primary color circuit groups is also connected to the target pixel electrode in the corresponding primary color electrode group.

[0079] In another possible implementation, continue to refer to Figure 5 As shown, a structural schematic diagram of a long strip micro LED low-power micro display screen that can maintain a stable visual center is provided. It is assumed that the pixel circuit is in the M2 layer and the pixel electrode is in the M1 layer. The four pixel circuits in each adjacent row and adjacent column form a basic unit, which is divided into basic unit R, basic unit G, and basic unit B. Among them, the basic unit R includes: pixel circuit R and pixel electrode R; the basic unit G includes: pixel circuit G and pixel electrode G; the basic unit B includes: pixel circuit B and pixel electrode B.

[0080] Figure 5 The arrangement of the middle positions is, in order, pixel circuit 11, pixel circuit 12, pixel circuit 21, and pixel circuit 22 of the basic unit R;

[0081] Pixel circuits 13, 14, 23, and 24 of the basic unit G;

[0082] Pixel circuits 15, 16, 25, and 26 of basic unit B;

[0083] Figure 5 The pixel circuit 11 is connected to the pixel electrode 1 of the basic unit R, the pixel circuit 12 is connected to the pixel electrode 2 of the basic unit R, the pixel circuit 21 is connected to the pixel electrode 3 of the basic unit R, and the pixel circuit 22 is connected to the pixel electrode 4 of the basic unit R;

[0084] Figure 5The pixel circuit 13 is connected to the pixel electrode 1 of the basic unit G, the pixel circuit 14 is connected to the pixel electrode 2 of the basic unit G, the pixel circuit 23 is connected to the pixel electrode 3 of the basic unit G, and the pixel circuit 24 is connected to the pixel electrode 4 of the basic unit G;

[0085] Figure 5 Pixel circuit 15 is connected to pixel electrode 1 of basic unit B, pixel circuit 16 is connected to pixel electrode 2 of basic unit B, pixel circuit 25 is connected to pixel electrode 3 of basic unit B, and pixel circuit 26 is connected to pixel electrode 4 of basic unit B.

[0086] Optionally, the area ratio of the pixel electrodes is pixel electrode 1: pixel electrode 2: pixel electrode 3: pixel electrode 4 = 1:2:4:8; the connection between the pixel circuit and the pixel electrode can be changed.

[0087] In another possible implementation, refer to Figure 6 As shown in FIG, a schematic diagram of the structure of a low-power micro-display with a field-shaped micro LED that can maintain a stable visual center is provided. Figure 6 As shown, assuming that the pixel circuit is in the M2 layer and the pixel electrode is in the M1 layer, the four pixel circuits in each adjacent row and adjacent column form a basic unit, which is divided into basic unit R, basic unit G, basic unit B, and basic unit W, wherein the basic unit R includes a pixel circuit R and a pixel electrode R, the basic unit G includes a pixel circuit G and a pixel electrode G, the basic unit B includes a pixel circuit B and a pixel electrode B, and the basic unit W includes a pixel circuit W and a pixel electrode W.

[0088] Figure 6 The positions are arranged in order: pixel circuit 11, pixel circuit 12, pixel circuit 21, and pixel circuit 22 of basic unit R; pixel circuit 13, pixel circuit 14, pixel circuit 23, and pixel circuit 24 of basic unit G; pixel circuit 31, pixel circuit 32, pixel circuit 41, and pixel circuit 42 of basic unit B; and pixel circuit 33, pixel circuit 34, pixel circuit 43, and pixel circuit 44 of basic unit W.

[0089] Figure 6 The pixel circuit 11 is connected to the pixel electrode 1 of the basic unit R, the pixel circuit 12 is connected to the pixel electrode 2 of the basic unit R, the pixel circuit 21 is connected to the pixel electrode 3 of the basic unit R, and the pixel circuit 22 is connected to the pixel electrode 4 of the basic unit R;

[0090] Figure 6 The pixel circuit 13 is connected to the pixel electrode 1 of the basic unit G, the pixel circuit 14 is connected to the pixel electrode 2 of the basic unit G, the pixel circuit 23 is connected to the pixel electrode 3 of the basic unit G, and the pixel circuit 24 is connected to the pixel electrode 4 of the basic unit G;

[0091] Figure 6 The pixel circuit 31 is connected to the pixel electrode 1 of the basic unit B, the pixel circuit 32 is connected to the pixel electrode 2 of the basic unit B, the pixel circuit 41 is connected to the pixel electrode 3 of the basic unit B, and the pixel circuit 42 is connected to the pixel electrode 4 of the basic unit B;

[0092] Figure 6 The pixel circuit 33 is connected to the pixel electrode 1 of the basic unit W, the pixel circuit 34 is connected to the pixel electrode 2 of the basic unit W, the pixel circuit 43 is connected to the pixel electrode 3 of the basic unit W, and the pixel circuit 44 is connected to the pixel electrode 4 of the basic unit W;

[0093] Optionally, the area ratio of the pixel electrodes is pixel electrode 1: pixel electrode 2: pixel electrode 3: pixel electrode 4 = 1:2:4:8; the connection between the pixel circuit and the pixel electrode can be changed.

[0094] Optionally, the ratio of areas of adjacent pixel electrodes in the same pixel electrode group is 2.

[0095] Optionally, the state value of the pixel electrode includes 0 or 1.

[0096] Optionally, the centrally symmetrical structure includes: a square, a rectangle, a hexagon or a circle, etc. whose geometric relationship is centrally symmetrical. The type selection needs to be comprehensively considered based on the relationship between the chip area and the pixel electrode arrangement.

[0097] In one achievable manner, reference Figure 7 As shown, a schematic diagram of a square pixel electrode is provided, such as Figure 7 As shown in the figure, from the inside to the outside, there are pixel electrode I, pixel electrode II, pixel electrode III, and pixel electrode IV. Among them, pixel electrode I represents bit 0, with an area of s, pixel electrode II represents bit 1, with an area of 2s, pixel electrode III represents bit 2, with an area of 4s, and pixel electrode IV represents bit 3, with an area of 8s.

[0098] In another possible implementation, refer to Figure 8 As shown, a schematic diagram of a rectangular pixel electrode is provided, such as Figure 8 As shown, from the inside to the outside are pixel electrode I, pixel electrode II, pixel electrode III, and pixel electrode IV. Pixel electrode I represents bit0, and its area is s. Pixel electrode II represents bit1, and its area is 2s. Pixel electrode III represents bit2, and its area is 4s. Pixel electrode IV represents bit3, and its area is 8s.

[0099] In another possible implementation, referring to Figure 9 As shown, this embodiment provides a schematic diagram of a hexagonal pixel electrode, as shown in FIG. Figure 9 As shown, from the inside to the outside are pixel electrode I, pixel electrode II, pixel electrode III, and pixel electrode IV. Pixel electrode I represents bit0, and its area is s. Pixel electrode II represents bit1, and its area is 2s. Pixel electrode III represents bit2, and its area is 4s. Pixel electrode IV represents bit3, and its area is 8s.

[0100] Optionally, the control signal includes: a state value of a pixel electrode;

[0101] Processing the video source data to generate control signals for all pixel circuits in each pixel circuit group includes:

[0102] Determine the number of pixel electrodes in the pixel electrode group and the ratio of the areas of adjacent pixel electrodes; determine the state value of the target pixel electrode in the pixel electrode group corresponding to all pixel circuits in the pixel circuit group based on the grayscale value of the video source data, the number of pixel electrodes in the pixel electrode group and the ratio of the areas of adjacent pixel electrodes.

[0103] Among them, several pixel circuits constitute a basic unit, the corresponding pixel electrodes are arranged in a centrally symmetrical manner, and the electrode area is proportional to the grayscale size. This can reduce the refresh rate while keeping the visual center stable, achieving a stable display of the visual center at a low refresh rate and ensuring that the picture display effect remains basically unchanged.

[0104] Optionally, the refresh rate of the micro display screen is reduced, at least to 1 / n of the original value, and the resolution is reduced to 1 / n of the original value.

[0105] Among them, the display grayscale depth of the video source data is 2n, that is, n bits require n pixel electrodes connected by n pixel circuits, where the area ratio of the n pixel electrodes is that the ratio of the area of the pixel electrodes connected to adjacent high-bit and low-bit grayscales is 2:1.

[0106] In one achievable manner, the number of pixel electrodes in the pixel electrode group is 4, and the ratio of the areas of adjacent pixel electrodes is 2. If the grayscale value of the video source data is 1-16, the state value of the target pixel electrode in the pixel electrode group corresponding to all pixel circuits in the pixel circuit group can be determined as follows:

[0107] Among them, the 0 state of pixel electrode 1, pixel electrode 2, pixel electrode 3, and pixel electrode 4 indicates no display, and the 1 state indicates display.

[0108] Map the 16 grayscales of the source 4 bits one by one, grayscale 0 is mapped to 0-state pixel electrode 1, 0-state pixel electrode 2, 0-state pixel electrode 3, and 0-state pixel electrode 4;

[0109] Grayscale 1 is mapped to pixel electrode 1 in state 1, pixel electrode 2 in state 0, pixel electrode 3 in state 0, and pixel electrode 4 in state 0;

[0110] Grayscale 2 is mapped to pixel electrode 1 in state 0, pixel electrode 2 in state 1, pixel electrode 3 in state 0, and pixel electrode 4 in state 0;

[0111] Grayscale 3 is mapped to pixel electrode 1 in state 1, pixel electrode 2 in state 1, pixel electrode 3 in state 0, and pixel electrode 4 in state 0;

[0112] Grayscale 5 is mapped to pixel electrode 1 in state 1, pixel electrode 2 in state 0, pixel electrode 3 in state 1, and pixel electrode 4 in state 0;

[0113] Grayscale 6 is mapped to pixel electrode 1 in state 0, pixel electrode 2 in state 1, pixel electrode 3 in state 1, and pixel electrode 4 in state 0;

[0114] Grayscale 7 is mapped to pixel electrode 1 in state 1, pixel electrode 2 in state 1, pixel electrode 3 in state 1, and pixel electrode 4 in state 0;

[0115] Grayscale 8 is mapped to pixel electrode 1 at state 0, pixel electrode 2 at state 0, pixel electrode 3 at state 0, and pixel electrode 4 at state 1;

[0116] Grayscale 9 is mapped to pixel electrode 1 in state 1, pixel electrode 2 in state 0, pixel electrode 3 in state 0, and pixel electrode 4 in state 1;

[0117] Grayscale 10 is mapped to pixel electrode 1 in state 0, pixel electrode 2 in state 1, pixel electrode 3 in state 0, and pixel electrode 4 in state 1;

[0118] Grayscale 11 is mapped to pixel electrode 1 in state 1, pixel electrode 2 in state 1, pixel electrode 3 in state 0, and pixel electrode 4 in state 1;

[0119] Grayscale 12 is mapped to pixel electrode 1 at state 0, pixel electrode 2 at state 0, pixel electrode 3 at state 1, and pixel electrode 4 at state 1;

[0120] Grayscale 13 is mapped to pixel electrode 1 in state 1, pixel electrode 2 in state 0, pixel electrode 3 in state 1, and pixel electrode 4 in state 1;

[0121] Grayscale 14 is mapped to pixel electrode 1 in state 0, pixel electrode 2 in state 1, pixel electrode 3 in state 1, and pixel electrode 4 in state 1;

[0122] The grayscale 15 is mapped to 1-state pixel electrode 1, 1-state pixel electrode 2, 1-state pixel electrode 3, and 1-state pixel electrode 4.

[0123] For details, please refer to the following Table 1:

[0124] Table 1 shows the corresponding relationship between the grayscale value of the video source data and the state value of the target pixel electrode in the pixel electrode group corresponding to all pixel circuits in the pixel circuit group.

[0125]

[0126]

[0127] Therefore, in this embodiment, in order to achieve stability of the visual center of the micro display screen, unnecessary energy consumption can be reduced by optimizing the state configuration of the pixel electrodes while ensuring that grayscale information can be accurately transmitted.

[0128] In this embodiment, each grayscale value is mapped to a different combination of states of four pixel electrodes (pixel electrodes 1, 2, 3, and 4). Each pixel electrode has two states: 0 or 1, where 0 represents no display (off) and 1 represents display (on). This mapping method allows for precise control of grayscale values, resulting in low power consumption and visual stability.

[0129] Among them, different grayscale values correspond to different pixel electrode combinations, and some electrodes can be selectively lit according to actual needs, thereby reducing the overall power consumption of the micro display screen; the state value of each pixel electrode in the same group of pixel electrodes is obtained based on the central symmetry of each pixel electrode, which can ensure that no obvious visual flicker or distortion will occur when the grayscale changes.

[0130] Optionally, the structure of each pixel circuit in the same pixel circuit group includes: L-type or field-type.

[0131] In one achievable way, continue to refer to Figure 4 As shown, the structure of each pixel circuit in pixel circuit group 1 is a square shape; for another example, the structure of each pixel circuit in pixel circuit group 1 is an L shape. Therefore, the structure of each pixel circuit in each pixel circuit group provided by the present application can support a variety of different structures and is independent of the shape of the centrosymmetric pixel electrode.

[0132] Optionally, the micro display screen further comprises: a substrate layer, a liquid crystal layer and a base;

[0133] The liquid crystal layer is located at the bottom of the substrate layer, the layer where the multiple pixel electrode groups are located is located at the bottom of the liquid crystal layer, and the layer where the multiple pixel circuit groups are located is located at the bottom of the layer where the multiple pixel electrode groups are located and is located on the top of the base;

[0134] A common electrode is provided in the substrate layer.

[0135] In one achievable manner, as referenced Figure 10As shown, the micro display screen includes multiple layers, from top to bottom: substrate layer, liquid crystal layer, pixel electrode layer, pixel circuit layer, and base. The substrate layer is transparent glass made of indium tin oxide (ITO), a transparent conductive material, and the common electrode for all pixel electrodes is located on the substrate layer.

[0136] The substrate is made of highly integrated single-crystal silicon and contains built-in CMOS circuitry, responsible for signal processing and pixel driving. For example, the CMOS circuitry within the silicon substrate receives image data from an external processor, processes it, distributes it to each pixel circuit, and ultimately drives the pixel electrodes.

[0137] Therefore, in the micro display screen provided in the present application, the pixel circuit and the pixel electrode are arranged in different layers, and the micro display screen includes a total of 5 layers.

[0138] In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0139] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0140] In addition, the functional units in various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or hardware plus software functional units.

[0141] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) or a processor (English: processor) to perform some steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (English: Read-Only Memory, abbreviated: ROM), a random access memory (English: Random Access Memory, abbreviated: RAM), a magnetic disk or an optical disk, and other media that can store program code.

Claims

1. A micro display screen, characterized in that: The micro display screen includes: a data processing module, a plurality of pixel circuit groups, and a plurality of pixel electrode groups; the plurality of pixel circuit groups are located in the same layer of the micro display screen, the plurality of pixel electrode groups are located in the same layer of the micro display screen, and the plurality of pixel circuit groups and the plurality of pixel electrode groups are located in different layers; The plurality of pixel circuit groups are arranged in a two-dimensional manner of M rows and N columns; Each of the pixel electrode groups includes k pixel electrodes, and the k pixel electrodes in the same pixel electrode group are arranged in a centrally symmetrical structure; each of the pixel circuit groups includes k pixel circuits, and the k pixel circuits are arranged in a two-dimensional manner in L rows and Q columns; One end of each pixel circuit in the pixel circuit group is connected to a target pixel electrode in the corresponding pixel electrode group, and the other end of each pixel circuit in the pixel circuit group is connected to a common electrode; The output end of the data processing module is connected to the control end of each pixel circuit; The input end of the data processing module is used to access the video source data to be displayed, and process the video source data to generate control signals for all pixel circuits in each pixel circuit group, so that all pixel circuits in each pixel circuit group drive the target pixel electrodes in the pixel electrode group corresponding to all pixel circuits in each pixel circuit group to light up under the action of the control signal.

2. The micro display screen according to claim 1, wherein: Each of the pixel electrode groups includes four pixel electrodes, each of the pixel circuit groups includes four pixel circuits, and the four pixel circuits in each of the pixel circuit groups are arranged in a two-dimensional manner of two rows and two columns.

3. The micro display screen according to claim 1, wherein: All pixel electrodes in each of the pixel electrode groups are pixel electrodes of the same primary color; and all pixel circuits in each of the pixel circuits are pixel circuits of the same primary color.

4. The micro display screen according to claim 1, wherein: The ratio of the areas of adjacent pixel electrodes in the same pixel electrode group is 2.

5. The micro display screen according to claim 1, wherein: The state value of the pixel electrode includes 0 or 1.

6. The micro display screen according to claim 1, wherein: The central symmetrical structure includes: square, rectangle, hexagon or circle.

7. The micro display screen according to any one of claims 1 to 6, characterized in that: in, The control signal includes: a state value of a pixel electrode; The processing of the video source data to generate control signals for all pixel circuits in each pixel circuit group includes: determining the number of pixel electrodes in the pixel electrode group and the ratio of areas of adjacent pixel electrodes; The state value of the target pixel electrode in the pixel electrode group corresponding to all pixel circuits in the pixel circuit group is determined according to the grayscale value of the video source data, the number of pixel electrodes in the pixel electrode group and the ratio of the areas of adjacent pixel electrodes.

8. The micro display screen according to claim 1, wherein: The structure of each pixel circuit in the same pixel circuit group includes: L-type or field-type.

9. The micro display screen according to claim 1, wherein: The micro display screen further comprises: a substrate layer, a liquid crystal layer and a base; The liquid crystal layer is located at the bottom of the substrate layer, the layer where the multiple pixel electrode groups are located is located at the bottom of the liquid crystal layer, the layer where the multiple pixel circuit groups are located is located at the bottom of the layer where the multiple pixel electrode groups are located, and is located on the top of the base; A common electrode is provided in the substrate layer.

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