Display module and control method of display module

Abstract

The display module and the control method of the display module provided by the present disclosure belong to the technical field of display, and the display module comprises a display panel and a backlight module; the display panel comprises a display area, the display area comprises a plurality of arrayed sub-pixels, the backlight module comprises a plurality of light emitting units, each light emitting unit comprises a plurality of light emitting elements emitting different color monochromatic light, and the light emitting unit corresponds to a plurality of adjacent sub-pixels in the display panel position; the plurality of light emitting elements are configured to be lit at different time points; wherein when a first light emitting element in the light emitting unit is lit, the total area of the sub-pixels in a target display area of the display area in a light transmission state is greater than the total area of the sub-pixels in a light transmission state when a second light emitting element is lit; the sub-pixels in the target display area correspond to the same display color, the monochromatic light emitted by the first light emitting element is different from the monochromatic light emitted by the second light emitting element, and the second light emitting element is any light emitting element except the first light emitting element in the light emitting unit.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and in particular to a display module and a control method for the display module. Background Technology

[0002] Currently, the methods for achieving color display in liquid crystal display devices are divided into red (R), green (G), and blue (B) filter layer display methods and field sequence display methods.

[0003] Among them, the liquid crystal display device using field sequence display is also called a field sequence display module. In the field sequence display module, the backlight of the display module includes three primary color lamp groups, such as red lamp, green lamp and blue lamp. The three primary color lamp groups are controlled to emit three primary color light at the same time. The liquid crystal screen controls the color and brightness of the transmitted light according to the information displayed to achieve additive color mixing in time, thereby using the visual persistence characteristic of the human eye to synthesize a color image. Summary of the Invention

[0004] A first aspect of this disclosure provides a display module, including a display panel and a backlight module for providing a backlight for the display panel;

[0005] The display panel includes a display area, which includes a plurality of sub-pixels arranged in an array;

[0006] The backlight module includes multiple light-emitting units, each of which includes multiple light-emitting elements that emit different colors of monochromatic light. The light-emitting units correspond to multiple adjacent sub-pixels on the display panel. The multiple light-emitting elements are configured to be lit in a time-division manner.

[0007] Wherein, when the first light-emitting element in the light-emitting unit is lit, the total area occupied by the sub-pixels in the light-transmitting state in the target display area of ​​the display area is greater than the total area occupied by the sub-pixels in the light-transmitting state when the second light-emitting element is lit; the sub-pixels in the target display area correspond to the same display color, the monochromatic light emitted by the first light-emitting element is different from the monochromatic light emitted by the second light-emitting element, and the second light-emitting element is any light-emitting element in the light-emitting unit other than the first light-emitting element.

[0008] For example, the plurality of light-emitting elements include a green light-emitting element, a red light-emitting element, and a blue light-emitting element, wherein the first light-emitting element is the green light-emitting element.

[0009] For example, when the first light-emitting element is lit, the number of sub-pixels in the target display area that are in a light-transmitting state is greater than the number of sub-pixels in a light-transmitting state when the second light-emitting element is lit.

[0010] For example, the plurality of light-emitting elements include a green light-emitting element, a red light-emitting element, and a blue light-emitting element; the first light-emitting element is the green light-emitting element;

[0011] When the blue light-emitting element is lit, the number of sub-pixels in the target display area that are in a light-transmitting state is equal to the number of sub-pixels in a light-transmitting state when the red light-emitting element is lit.

[0012] For example, some sub-pixels in the target display area that are in a light-transmitting state when the first light-emitting element is lit are also in a light-transmitting state when the second light-emitting element is lit.

[0013] For example, when the first light-emitting element is lit, the sub-pixels in the target display area that are in a light-transmitting state are different from the sub-pixels that are in a light-transmitting state when the second light-emitting element is lit.

[0014] For example, the plurality of light-emitting elements include a green light-emitting element, a red light-emitting element, and a blue light-emitting element; the first light-emitting element is the green light-emitting element;

[0015] When the green light-emitting element is lit, multiple first sub-pixels in the target display area are in a light-transmitting state; when the blue light-emitting element is lit, multiple second sub-pixels in the target display area are in a light-transmitting state; when the red light-emitting element is lit, multiple third sub-pixels in the target display area are in a light-transmitting state.

[0016] Wherein, the first sub-pixel, the second sub-pixel, and the third sub-pixel are arranged periodically; and, in one arrangement period, the number of the first sub-pixel is greater than the number of the second sub-pixel and the third sub-pixel.

[0017] For example, when the first light-emitting element is lit, the aperture ratio of a single sub-pixel in the target display area that is in a light-transmitting state is greater than the aperture ratio of a single sub-pixel in a light-transmitting state when the second light-emitting element is lit.

[0018] For example, the plurality of said sub-pixels includes: a fourth sub-pixel, a fifth sub-pixel, and a sixth sub-pixel;

[0019] The fourth sub-pixel, the fifth sub-pixel, and the sixth sub-pixel are arranged periodically in the display area, and the fourth sub-pixel, the fifth sub-pixel, and the sixth sub-pixel each have a different aperture ratio.

[0020] When the first light-emitting element is lit, the sub-pixel with the largest aperture ratio among the fourth, fifth, and sixth sub-pixels is in the light-transmitting state.

[0021] For example, when the first light-emitting element is lit, the number of sub-pixels in the target display area that are in a light-transmitting state is equal to the number of sub-pixels in a light-transmitting state when the second light-emitting element is lit.

[0022] A second aspect of this disclosure provides a control method for a display module, used to control the display module described in any embodiment of the first aspect, comprising:

[0023] Determine the target display area in the image to be displayed, where all sub-pixels in the target display area have the same display color;

[0024] The display data of the target display area is divided into multiple sub-display data, each of which corresponds to a color component in the display screen, and different color components correspond to different color light-emitting elements in the light-emitting unit;

[0025] For each of the sub-display data, after controlling a portion of the sub-pixels in the target display area to be in a light-transmitting state, the light-emitting element corresponding to that sub-display data is controlled to light up;

[0026] Wherein, when the first light-emitting element in the light-emitting unit is lit, the total area occupied by the sub-pixels in the target display area that are in a light-transmitting state is greater than the total area occupied by the sub-pixels in the light-transmitting state when the second light-emitting element is lit, the monochromatic light emitted by the first light-emitting element is different from the monochromatic light emitted by the second light-emitting element, and the second light-emitting element is any light-emitting element in the light-emitting unit other than the first light-emitting element.

[0027] For example, controlling a portion of the sub-pixels in the target display area to be in a light-transmitting state for each of the sub-display data includes:

[0028] Determine the current performance parameters of the target light-emitting element in the light-emitting unit that corresponds to the sub-display data. The performance parameters are used to characterize the correlation between current magnitude and luminous brightness.

[0029] Based on the performance parameters, determine the target number of sub-pixels to be transmitted in the target display area;

[0030] The target number of sub-pixels in the target display area is controlled to be in a light-transmitting state.

[0031] The display module of the above embodiment includes a display panel and a backlight module; wherein the display area of ​​the display panel includes a plurality of sub-pixels arranged in an array; the backlight module includes a plurality of light-emitting units, each light-emitting unit including a plurality of light-emitting elements emitting monochromatic light of different colors, and the light-emitting units correspond to a plurality of sub-pixels in adjacent positions; the plurality of light-emitting elements are configured to be lit in a time-division manner in a display cycle; wherein, when the first light-emitting element in the light-emitting unit is lit, the total area occupied by the sub-pixels in the light-transmitting state in the target display area of ​​the display area is greater than the total area occupied by the sub-pixels in the light-transmitting state when the second light-emitting element is lit; the sub-pixels in the target display area correspond to the same display color, the monochromatic light emitted by the first light-emitting element is different from the monochromatic light emitted by the second light-emitting element, and the second light-emitting element is any light-emitting element in the light-emitting unit other than the first light-emitting element.

[0032] In this design, when light-emitting elements of different colors emit light, the total area of ​​the target display area of ​​the display panel that transmits the colored light can vary. A larger light-transmitting area allows more colored light to pass through. Therefore, the amount of light transmitted through the display panel from the first light-emitting element can be greater than the amount of light transmitted through the display panel from the second light-emitting element. On one hand, this configuration allows more light emitted by the first light-emitting element to pass through the display panel under the same driving current, increasing the transmittance of the light emitted by the first light-emitting element. This reduces the driving current of the first light-emitting element while maintaining the brightness of the display panel, thus reducing power consumption. On the other hand, the reduced driving current of the first light-emitting element also ensures its lifespan. Furthermore, because the light-transmitting area of ​​the first light-emitting element is larger than that of the second light-emitting element, the target area can be a mixture of colors from different sized areas over time, thereby reducing jagged edges and improving image quality.

[0033] The above description is merely an overview of the technical solution disclosed herein. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this disclosure more apparent and understandable, specific embodiments of this disclosure are described below. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments or related technologies of this disclosure, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the scale in the drawings is for illustration only and does not represent the actual scale.

[0035] Figure 1 A cross-sectional schematic diagram of the display module is shown;

[0036] Figure 2 and Figure 3 Top-view schematic diagrams of several display modules are shown respectively;

[0037] Figure 4 The diagram shows the light-transmitting area of ​​the display module in three field sequences;

[0038] Figure 5 It shows Figure 4 The diagram shows the light transmission of the display module in three field sequences;

[0039] Figure 6 , Figure 7 and Figure 10 The diagrams illustrate the process of the cross-shaped display pattern in several field sequence displays.

[0040] Figure 8 and Figure 9 The diagrams show the process of L255 screen in several field sequence displays;

[0041] Figure 11 A planar schematic diagram of a sub-pixel is shown;

[0042] Figure 12 A schematic diagram of the system architecture of the display module is shown;

[0043] Figure 13 A flowchart illustrating the steps of the control method for the display module is shown. Detailed Implementation

[0044] To make the above-mentioned objectives, features, and advantages of this disclosure more apparent and understandable, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0045] In this specification, "electrical connection" and "coupling" include situations where components are connected together by elements that have some electrical function. There are no particular limitations on what constitutes an "electrical function," as long as it allows for the transmission and reception of electrical signals between the connected components. Examples of "electrical functions" include not only electrodes and wiring, but also switching elements such as transistors, resistors, inductors, capacitors, and other components with various functions.

[0046] In this specification, "parallel" refers to the state where the angle formed by two straight lines is greater than or equal to -10° and less than 10°, and therefore also includes the state where the angle is greater than or equal to -5° and less than 5°. Similarly, "perpendicular" refers to the state where the angle formed by two straight lines is greater than or equal to 80° and less than 100°, and therefore also includes the state where the angle is greater than or equal to 85° and less than 95°.

[0047] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open and encompassing, that is, "including, but not limited to".

[0048] In this application, "same layer" refers to the relationship between multiple film layers formed from the same material after undergoing the same step (e.g., a patterning process). "Same layer" here does not always mean that multiple film layers have the same thickness or the same height in a cross-sectional view. The polygons used in this specification are not strictly defined; they can be approximate triangles, parallelograms, trapezoids, pentagons, or hexagons, and may have minor deformations due to tolerances.

[0049] In the embodiments of this application, since the source and drain of the transistor are symmetrical, their source and drain can be interchanged. In the embodiments of this application, one of the source and drain of the transistor can also be called the first electrode, and the other of the source and drain can be called the second electrode.

[0050] Field-Sequential Color (FSC) LCDs use three backlights that are lit sequentially. The LCD screen controls the color and brightness of the transmitted light according to the information being displayed, achieving additive color mixing over time. It employs a flicker frequency higher than the threshold acceptable to the human eye, sequentially displaying red, green, and blue images within the same display area, and synthesizing a color image using the persistence of vision characteristic of the human eye. Therefore, it eliminates the need for color filters, reducing the pixel count to one-third that of ordinary transmissive LCDs, making it easier to achieve high-capacity, large-screen displays.

[0051] Among them, the three-color backlight can be LED (Light-Emitting Diode Light), which is a commonly used light-emitting device that releases energy through the recombination of electrons and holes to emit light. The three primary color LEDs can include green LED, red LED and blue LED.

[0052] In some examples, the tri-color backlight can also use an OLED (Organic Light-Emitting Diode) substrate. The OLED substrate includes multiple light-emitting units, each of which includes a cathode, an anode, and an organic light-emitting layer located between the cathode and the anode. The organic light-emitting layer emits light under the action of a driving current between the anode and the cathode. The OLED light-emitting units also include three primary color light-emitting units, such as a light-emitting unit that emits blue light, a light-emitting unit that emits green light, and a light-emitting unit that emits red light.

[0053] In related technologies, taking LEDs as the backlight for field-sequence displays as an example, the brightness of LEDs of different colors does not match under the same current. Moreover, as the backlight of the display panel, the current requirements of the RGB three-color LEDs of the backlight are not consistent, and the lifespan of the three-color LEDs is also different. Therefore, for field-sequence displays, it is particularly important to improve the overall lifespan of the field-sequence display.

[0054] In view of this, the inventors, through in-depth research, have provided a display module and a control method for the display module. In the display module and the control method for the display module, it can be set that when the display module displays red, green, and blue primary colors in a time-division manner, the area of ​​the display panel that transmits red, green, and blue primary color light is different, so that the transmission area of ​​the target color light is greater than the transmission area of ​​other color light, thereby ensuring the light transmittance of the whole machine and improving the lifespan of the light-emitting element that emits the target color light.

[0055] For example, taking green light as the target color, when the red, green and blue primary colors are displayed in a time-division manner, the green light transmission area in the display panel is the largest, thereby ensuring that the green light transmittance is maintained even when the driving current of the green light-emitting LED is relatively small, thus ensuring the overall display brightness. In this way, not only is power consumption reduced, but the lifespan of the green LED is also guaranteed, making the lifespan of the green LED, red LED and blue LED tend to be consistent.

[0056] The display module and its control method according to embodiments of this disclosure will now be described by way of example, with reference to the accompanying drawings.

[0057] First, in one embodiment, a display module is provided. Please refer to... Figures 1-4 As shown, Figure 1 A cross-sectional schematic diagram of the display module is shown. Figure 2 and Figure 3 Several top-view schematic diagrams of display modules are shown respectively. Figure 4 The diagram shows the light-transmitting area of ​​the display module in three field sequences.

[0058] like Figures 1-3 As shown, the display module includes a display panel 10 and a backlight module 20 that provides a backlight for the display panel.

[0059] The display panel 10 includes a display area, which includes multiple sub-pixels P arranged in an array.

[0060] The backlight module 20 includes multiple light-emitting units 220, each light-emitting unit 220 including multiple light-emitting elements 22 that emit monochromatic light of different colors, and the light-emitting units 220 correspond to multiple adjacent sub-pixels P in the display panel; the multiple light-emitting elements 22 are configured to be lit in a time-division manner.

[0061] When the first light-emitting element 221 in the light-emitting unit 220 is lit, the total area occupied by the sub-pixels P in the target display area of ​​the display area that are in a light-transmitting state is greater than the total area occupied by the sub-pixels P in the light-transmitting state when the second light-emitting element 222 is lit; the sub-pixels P in the target display area correspond to the same display color; the monochromatic light emitted by the first light-emitting element 221 is different from the monochromatic light emitted by the second light-emitting element 222; the second light-emitting element 222 is any light-emitting element 22 in the light-emitting unit 220 other than the first light-emitting element 221.

[0062] like Figure 2 As shown, the display panel 10 may include a display area and a non-display area. The non-display area may surround or partially surround the display area. The display area includes multiple sub-pixels P, which are arranged in an array. For example, the multiple sub-pixels P may be arranged in a first direction x and a second direction y. The first direction x may be a row direction and the second direction y may be a column direction. In this way, the multiple sub-pixels P can be arranged into a rectangular array with multiple rows and columns.

[0063] One sub-pixel P can be used as a pixel in the display area.

[0064] The display panel 10 can be a liquid crystal display panel, such as... Figure 1 As shown, the display panel may include a first substrate 11 and a second substrate 12 disposed opposite to each other, and a liquid crystal 13 located between the first substrate 11 and the second substrate 12. In the area where each sub-pixel P is located, the display panel may include a common electrode 121, a pixel electrode 112, and a liquid crystal 13 located between the common electrode 121 and the pixel electrode 112.

[0065] The second substrate 12 includes a second substrate 122, and a common electrode 121 is located on the side of the second substrate 122 close to the liquid crystal 13. The first substrate 11 includes a first substrate 111, and a pixel electrode 112 is located on the side of the first substrate 111 close to the liquid crystal 13. The pixel electrode 112 and the common electrode 121 can be made of a light-transmitting conductive material.

[0066] The second substrate 122 also includes a light-shielding layer, which can also be called a black matrix layer. The orthographic projection of the light-shielding layer on the first substrate 111 can overlap with the signal lines (such as the gate lines and data lines of the display area) disposed on one side of the first substrate. The light-shielding layer includes an opening OP. The orthographic projection of the opening OP on the first substrate 111 can overlap with the orthographic projection of the pixel electrode 112 on the first substrate 111. The opening OP is the opening of the sub-pixel P. The light emitted by the backlight can be emitted from the opening OP. Figure 1 The illustration only shows an embodiment where the pixel electrode and the common electrode are disposed on different substrates. Optionally, the pixel electrode and the common electrode can also be disposed on one side of the first substrate 111. In this case, the pixel electrode and the common electrode can be disposed on the same layer or on different layers.

[0067] The first substrate 111 may also include a pixel driving circuit, and a gate line GL and a data line DL connected to the pixel driving circuit. The gate line GL and the data line DL intersect to define a plurality of sub-pixels P. The pixel electrode 112 is located in the region defined by the intersection of the data line DL and the gate line GL. The pixel driving circuit may include a thin film transistor T. The gate of the thin film transistor T is connected to the gate line GL, the source can be connected to the data line DL, and the drain can be connected to the thin film transistor T.

[0068] The pixel driving circuit can provide a driving voltage to the pixel electrode 112. The liquid crystal 13 can be deflected under the action of the electric field formed between the pixel electrode 112 and the common electrode 121. The deflection of the liquid crystal 13 can control the transmittance of the light emitted by the backlight, thereby realizing the grayscale adjustment of each color light by the sub-pixel P.

[0069] The backlight module 20 may include a third substrate 21 and multiple light-emitting units 220 located on one side of the third substrate 21. Each light-emitting unit 220 includes multiple light-emitting elements 22, and different light-emitting elements 22 in the same light-emitting unit 220 can emit light of different colors. For example, as shown... Figure 1 As shown, the light-emitting unit 220 can emit three primary colors of light, and the light-emitting unit 220 can include three light-emitting elements 22, namely a green light-emitting element G, a red light-emitting element R and a blue light-emitting element B.

[0070] The light-emitting element 22 can be an LED lamp bead or an OLED light-emitting unit 220.

[0071] The LED light can have a size of 100 micrometers to 300 micrometers, or even larger than 300 micrometers. The OLED light-emitting unit 220 can include a cathode, an anode, and an organic light-emitting layer located between the cathode and anode. In this case, the backlight module 20 can include a substrate and multiple light-emitting units 220 located on the substrate. The substrate can include a driving circuit corresponding to each light-emitting element 22, and the driving circuit can include a thin-film transistor T. In some examples, the substrate can have a structure similar to that of the first substrate.

[0072] In an exemplary embodiment, a light-emitting unit 220 may contain one or more light-emitting elements 22 of the same color. For example, the light-emitting unit 220 may include multiple green light-emitting elements 22, multiple red light-emitting elements 22, and multiple blue light-emitting elements 22, wherein the number of light-emitting elements 22 of different colors may be the same. For example, the number of green light-emitting elements 22, red light-emitting elements 22, and blue light-emitting elements 22 may all be j, where j is a positive integer.

[0073] In this exemplary embodiment, in each field, all light-emitting elements 22 emitting the same color of light may be lit, or at least partially lit. For example, in the display of a green field, all light-emitting elements 22 emitting green light may be lit, or at least some of the green light-emitting elements G may be lit.

[0074] In this context, one light-emitting unit 220 can correspond to a display block in the display area, which is called a sub-display area A1. For example, as shown in the figure... Figure 1 As shown, the display area can be divided into multiple sub-display areas A1. Each sub-display area A1 can include multiple sub-pixels P that are adjacent to each other. The multiple sub-pixels P in the sub-display area A1 can be arranged in a matrix. One light-emitting unit 220 can correspond to one sub-display area A1. The light-emitting units 220 of different sub-display areas A1 can be isolated to avoid color crosstalk caused by the light-emitting unit 220 corresponding to one sub-display area A1 to another sub-display area A1.

[0075] like Figure 2 As shown, the backlight can be a direct-lit backlight, and the multiple sub-pixels P in the sub-display area A1 can be arranged in a 5*5 array or a 4*4 array. For example, a sub-display area A1 can be arranged in a 5*5 array, and a sub-display area A1 corresponds to a light-emitting unit 220. The orthographic projection of the light-emitting unit 220 on the display panel can be located within the sub-display area A1.

[0076] like Figure 3As shown, the backlight can be a side-lit backlight, and multiple sub-display areas A1 can be arranged along the second direction y. Each sub-display area A1 includes n rows of sub-pixels P; one sub-display area A1 corresponds to one light-emitting unit 220.

[0077] In this embodiment, the display panel can be configured to display images. For example, the display panel may include a display driver chip. The display driver chip can split the image data into three color component maps based on the incoming image data, such as splitting it into a green component map, a blue component map, and a red component map. The green component map may include the grayscale value of each sub-pixel P in the green channel, the red component map may include the grayscale value of each sub-pixel P in the red channel, and the blue component map may include the grayscale value of each sub-pixel P in the blue channel.

[0078] When driving the display, the colors of the display panel can be refreshed sequentially according to the three color component diagrams. For example, driving in the order of green component diagram, blue component diagram, and red component diagram: When displaying according to the green component diagram, the liquid crystal 13 in the sub-pixel P can be driven to deflect to the corresponding angle first. Then, the green light-emitting element G in the light-emitting unit 220 of the backlight module 20 is driven to emit light, so that green light passes through the liquid crystal 13 with a certain deflection angle at the sub-pixel P; When displaying according to the blue component diagram, the liquid crystal 13 in the sub-pixel P can be driven to deflect to the corresponding angle first. Then, the blue light-emitting element B in the light-emitting unit 220 of the backlight module 20 is driven to emit light, so that blue light passes through the liquid crystal 13 with a certain deflection angle at the sub-pixel P; When displaying according to the red component diagram, the liquid crystal 13 in the sub-pixel P can be driven to deflect to the corresponding angle first. Then, the red light-emitting element R in the light-emitting unit 220 of the backlight module 20 is driven to emit light, so that red light passes through the liquid crystal 13 with a certain deflection angle at the sub-pixel P. The green, blue, and red light that passes through are mixed over time, and the corresponding display colors are displayed by utilizing the visual pause effect of the human eye.

[0079] In this embodiment, the multiple light-emitting elements 22 in the light-emitting unit 220 are configured to be lit in a time-division manner, which can be understood as the multiple light-emitting elements 22 being lit sequentially in the display of one frame.

[0080] In the light-emitting unit 220, when a light-emitting element 22 of a certain color is lit, the light-emitting elements 22 of other colors may not be lit. For example, when the green light-emitting element G is lit, the red light-emitting element R and the blue light-emitting element B are not lit.

[0081] In this embodiment, during the display of at least one frame, the display panel can be configured such that when the first light-emitting element 221 in the light-emitting unit 220 is lit, the area occupied by the sub-pixel P in the target display area that is in a light-transmitting state is greater than the area occupied by the sub-pixel P in a light-transmitting state when the second light-emitting element 222 is lit.

[0082] In this context, sub-pixels P within the target display area correspond to the same display color. Display color refers to the color displayed by sub-pixel P in that frame, which can be white, black, yellow, etc. The grayscale value of sub-pixel P in the three color component maps is obtained through the display color of that sub-pixel P.

[0083] For example, such as Figure 4 As shown, taking a cross-shaped graphic as the target display area as an example, the display color of the cross-shaped graphic can be any color among black, white, gray, and color. In the image data to be displayed, the display color of each pixel in the cross-shaped graphic can be consistent.

[0084] In this embodiment, when displaying the target display area, the area occupied by the sub-pixel P that transmits light through the first light-emitting element 221 in the target display area is greater than the area occupied by the sub-pixel P that emits light through the second light-emitting element 222.

[0085] For example, such as Figure 5 As shown, the light-emitting unit 220 includes three light-emitting elements 22 of different colors, which are lit sequentially. One second light-emitting element 222 is lit first, and the sub-pixel P in the target area that allows light from this second light-emitting element 222 to pass through is designated as P1. Next, the first light-emitting element 221 is lit, and the sub-pixel P in the target area that allows light from this first light-emitting element 221 to pass through is designated as P2. Finally, the last second light-emitting element 222 is lit, and the sub-pixel P in the target area that allows light from this second light-emitting element 222 to pass through is designated as P3. The number of sub-pixels P1 and P3 is less than the number of sub-pixels P2, maximizing the light transmission area emitted by the second light-emitting element 222.

[0086] The area of ​​subpixel P can refer to the planar area of ​​the opening of subpixel P projected onto the display panel; for example... Figure 4 As shown, the total area occupied by the sub-pixel P in the light-transmitting state can refer to the total area of ​​the opening OP of the sub-pixel P in the light-transmitting state within the display area. For example, assuming the opening area of ​​the sub-pixel P is i and the number of sub-pixels P in the light-transmitting state is m, the total area occupied by the sub-pixels P in the light-transmitting state can be i*m.

[0087] Then, such as Figure 4As shown, the area occupied by the sub-pixel P through the light emitted by the first light-emitting element 221 is greater than the area occupied by the sub-pixel P through the light emitted by the second light-emitting element 222. This can be understood as: the light-transmitting area of ​​the target display area through the light emitted by the first light-emitting element 221 is greater than the light-transmitting area of ​​the target display area through the light emitted by the second light-emitting element 222.

[0088] In one example, it can also be expressed as follows: when the first light-emitting element 221 is lit, the area ratio of the sub-pixel P in the target display area that is in a transparent state is greater than the area ratio of the sub-pixel P in the transparent state when the second light-emitting element 222 is lit.

[0089] The proportion of the area occupied by the light-transmitting sub-pixels P can refer to the proportion of the total area of ​​the light-transmitting sub-pixels P to the planar area of ​​the target display area. For example, assuming the planar area of ​​the target display area is K, the opening area of ​​the sub-pixels P is i, and the number of light-transmitting sub-pixels P is m, then the proportion of the area occupied by the light-transmitting sub-pixels P can be: i*m / K.

[0090] In this light-emitting unit 220, the monochromatic light emitted by the first light-emitting element 221 is different from the monochromatic light emitted by the second light-emitting element 222, which is any light-emitting element 22 other than the first light-emitting element 221. Thus, in the light-emitting unit 220, the light emitted by the first light-emitting element 221 has the largest transmittance area in the target display area.

[0091] The light-emitting elements 22 of different colors in the light-emitting unit 220 may have different brightness levels under the same driving current. Thus, in an exemplary embodiment, the first light-emitting element 221 may be the light-emitting element 22 with the lowest current-to-brightness cost-effectiveness in the light-emitting unit 220, that is, the first light-emitting element 221 is the light-emitting element 22 with the lowest brightness among all the light-emitting elements 22 in the light-emitting unit 220 under the same driving current.

[0092] In related technologies, to improve the brightness of the light emitted by the first light-emitting element 221, the driving current of the first light-emitting element 221 is generally increased. However, increasing the driving current will shorten the lifespan of the first light-emitting element 221, causing it to fail earlier than the second light-emitting element 222. In this embodiment, by increasing the light-transmitting area of ​​the first light-emitting element 221, not only can the brightness of the light emitted to the display panel be guaranteed, but the first light-emitting element 221 can also operate with a smaller driving current. This ensures the lifespan of the first light-emitting element 221, making the actual lifespan of each light-emitting element 22 in the light-emitting unit 220 more consistent; and it can also reduce the overall power consumption of the display module.

[0093] Please combine Figure 4 As shown, in the display of the target display area, different colored lights emitted by different light-emitting elements 22 pass through areas of different sizes in sequence, so that the colors on areas of different sizes are mixed in time, thereby reducing the jaggedness of the image and improving the image quality.

[0094] It should be noted that, Figure 4 The image displays the transmission of a single frame across different color fields at different times, facilitating understanding. It's understood that the time intervals between the colors displayed in these different color fields are very small, thus utilizing the visual pause effect of the human eye to display the corresponding color crosshair.

[0095] In one embodiment, please refer to Figure 12 As shown, Figure 12 A schematic diagram of the drive system for the display module is shown, such as... Figure 12 As shown, the display panel may include a processor, a timing drive module, and a backlight drive module. The processor can be configured to decompose incoming image data into color component maps of three colors. The data of the three color component maps can enter the timing drive module. The timing drive module can generate a first timing control signal corresponding to each color component map based on each color component map. The first timing control signal is used to control the deflection angle of the liquid crystal 13 in each sub-pixel P in the display panel, which can be driven by scanning line by line.

[0096] The timing drive module can also generate a second timing control signal corresponding to each color component map. This second timing control signal is sent to the backlight drive module, which then controls the corresponding light-emitting elements 22 in each light-emitting unit 220 of the backlight module 20 to emit light according to the second timing control. Specifically, the second timing control signal can control the light-emitting units 220 in the backlight module 20 to illuminate in sections, such as illuminating the light-emitting elements 22 in the display block driven by the current first timing control signal.

[0097] In one exemplary embodiment, the plurality of light-emitting elements 22 include a green light-emitting element G, a red light-emitting element R, and a blue light-emitting element B, wherein the first light-emitting element 221 is the green light-emitting element G, and the second light-emitting element 222 is the red light-emitting element R and the blue light-emitting element B.

[0098] This increases the area through which green light can pass in the target display area.

[0099] This increases the brightness of the green light, improving poor image quality. The increased brightness is due to the increased transmittance of the green light, allowing the green light-emitting element G to operate at a lower wick current, preventing damage to the wick and extending its lifespan. This makes the actual lifespan of the green light-emitting element G consistent with that of the red light-emitting element R and the blue light-emitting element B.

[0100] In an exemplary embodiment, the maximum light transmission area emitted by the first light-emitting element 221 can mean that the number of sub-pixels P that transmit light through the first light-emitting element 221 is the largest. For example, when the first light-emitting element 221 is lit, the number of sub-pixels P in the target display area that are in a light-transmitting state is greater than the number of sub-pixels P in a light-transmitting state when the second light-emitting element 222 is lit.

[0101] In this embodiment, the area of ​​each sub-pixel P can be the same, that is, the aperture ratio of each sub-pixel P can be the same. The aperture ratio refers to the proportion of the planar area of ​​the opening of the sub-pixel P to the area of ​​the display area.

[0102] like Figure 4 As shown, this case represents the situation where the number of sub-pixels P that transmit light through the first light-emitting element 221 is maximized, thereby maximizing the light transmission area emitted by the first light-emitting element 221.

[0103] In one example of this embodiment, the sub-pixel P of light emitted through the first light-emitting element 221 and the sub-pixel P of light emitted through the second light-emitting element 222 can be different sub-pixels P. For example, they can be combined. Figure 4 and Figure 7 As shown, Figure 7 The diagram illustrates the field sequence display process of a single frame, as shown below. Figure 7 As shown, the sub-pixel P of light emitted through the first light-emitting element 221 and the sub-pixel P of light emitted through the second light-emitting element 222 are independent of each other.

[0104] Mutually independent can mean that a sub-pixel P that is in a transparent state when the first light-emitting element 221 emits light is in an opaque state when the second light-emitting element 222 emits light. For example, as... Figure 5 As shown, when the first light-emitting element 221 emits light, sub-pixel P2 is in a transparent state, and when the second light-emitting element 222 emits light, sub-pixel P2 is in an opaque state. Similarly, when the second light-emitting element 222 emits light, sub-pixel P1 is in a transparent state, and when the first light-emitting element 221 emits light, sub-pixel P1 is in an opaque state.

[0105] This simplifies the display driver of the display panel, reduces the mixing of multiple colors by the same sub-pixel P, and thus improves the uniformity of color mixing in the overall picture of the target display area.

[0106] In one example of this embodiment, multiple sub-pixels P in the display area can be grouped to obtain multiple pixel groups, each pixel group may include at least 4 adjacent sub-pixels P in the row direction. Exemplarily, the multiple pixel groups may be arranged in the row direction, each pixel group includes multiple columns of sub-pixels P, and a pixel group includes at least 4 columns of sub-pixels P.

[0107] Furthermore, each pixel group can be divided into multiple sub-pixel groups, and each sub-pixel group corresponds to multiple light-emitting elements 22 that emit different colors of light. That is, the number of sub-pixel groups is the same as the number of light-emitting elements 22 in the light-emitting unit 220. Thus, in the row direction, each sub-pixel group can include at least one sub-pixel P, wherein the sub-pixel group corresponding to the first light-emitting element 221 includes the maximum number of sub-pixels P.

[0108] For example, such as Figure 4 As shown, each group consists of 9 columns of subpixels P, and each pixel group is further divided into 3 subpixel groups. In the row direction, the number of subpixels P included in the three subpixel groups are 2, 5, and 2, respectively. Therefore, a subpixel group containing 5 subpixels P corresponds to the first light-emitting element 221, and a subpixel group containing 2 subpixels P corresponds to the second light-emitting element 222. Thus, the ratio of the number of subpixels P emitting light through the first light-emitting element 221 to the number of subpixels P emitting light through the second light-emitting element 222 can be 2:5:2.

[0109] Of course, in other examples, the proportion of subpixels P included in each subpixel group within a pixel group can also be other proportions, for example, such as... Figure 9 As shown, Figure 9 The diagram shows the light-transmitting area of ​​the display area in three field sequences when using an L255 screen, as shown below. Figure 9 As shown, each group consists of 9 columns of subpixels P, and each pixel group is further divided into 3 subpixel groups. In the row direction, the number of subpixels P included in the three subpixel groups are 2, 4, and 3 respectively. Therefore, the ratio of the number of subpixels P included in each subpixel group is 2:4:3. Specifically, in one row of subpixels P, the first light-emitting element 221 corresponds to 4 subpixels P, one second light-emitting element 222 corresponds to 2 subpixels P, and another second light-emitting element 223 corresponds to 3 subpixels P. The first light-emitting element 221 can be a green light-emitting element G, the second light-emitting element 222 can be a red light-emitting element R, and the second light-emitting element 223 can be a blue light-emitting element B.

[0110] In this embodiment, multiple pixel groups can be arranged in the row direction, so that all sub-pixel groups in the display area can be regarded as a periodic arrangement structure.

[0111] For example, the plurality of light-emitting elements 22 include a green light-emitting element G, a red light-emitting element R, and a blue light-emitting element B; wherein, the first light-emitting element 221 is a green light-emitting element G; thus, as Figure 5 As shown, when the green light-emitting element G is lit, multiple first sub-pixels P2 in the target display area are in a light-transmitting state; when the blue light-emitting element B is lit, multiple second sub-pixels P3 in the target display area are in a light-transmitting state; when the red light-emitting element R is lit, multiple third sub-pixels P1 in the target display area are in a light-transmitting state.

[0112] The first sub-pixel P2, the second sub-pixel P3, and the third sub-pixel P1 are arranged periodically; and in one arrangement period, the number of the first sub-pixel P2 is greater than the number of the second sub-pixel P3 and the third sub-pixel P1.

[0113] like Figure 7 and Figure 8 As shown, Figure 8 The diagram illustrates the field sequence of the L255 display. The backlight is activated in the order of red, green, and blue fields. In the red field (R), multiple third sub-pixels P1 are in a transparent state, and each pair of third sub-pixels P1 forms a sub-pixel group R, arranged at intervals in the display area. In the green field (G), multiple first sub-pixels P2 are in a transparent state, and each pair of first sub-pixels P2 forms a sub-pixel group G, arranged at intervals in the display area. In the blue field (B), multiple second sub-pixels P3 are in a transparent state, and each pair of second sub-pixels P3 forms a sub-pixel group B, arranged at intervals in the display area.

[0114] In this way, sub-pixel groups R, G, and B are arranged periodically in the display area, which improves the uniformity of the displayed colors in the target display area.

[0115] Of course, in order to improve the uniformity of displayed colors and the fineness of the displayed colors seen by the human eye, the fewer the number of sub-pixels P included in a pixel group, the more uniform the screen color will be. For example, when a pixel group includes 4 sub-pixels P, the ratio of the number of sub-pixels P included in sub-pixel group R, sub-pixel group G and sub-pixel group B can be 1:2:1.

[0116] In some other embodiments, when the number of sub-pixels P that emit light through the first light-emitting element 221 is maximized, sub-pixels P1 that emit light through the first light-emitting element 221 may have overlapping sub-pixels P with sub-pixels P2 that emit light through the second light-emitting element 222. For example, some sub-pixels P in the target display area that are in a light-transmitting state when the first light-emitting element 221 is lit are also in a light-transmitting state when the second light-emitting element 222 is lit.

[0117] It should be noted that the sub-pixel P1 emitting light through the first light-emitting element 221 and the sub-pixel P2 emitting light through the second light-emitting element 222 can partially overlap. That is, some sub-pixels P1 can be in a light-transmitting state when the second light-emitting element 222 emits light, while the remaining sub-pixels P can be in an opaque state. Similarly, some sub-pixels P2 can be in a light-transmitting state when the first light-emitting element 221 emits light, while the remaining sub-pixels P can be in an opaque state, or all sub-pixels P2 can be in a light-transmitting state when the first light-emitting element 221 emits light.

[0118] Using this example, some sub-pixels in the target display area can simultaneously mix the light emitted by the first light-emitting element 221 and the light emitted by the second light-emitting element 222, thereby improving the color saturation of the target display area.

[0119] In this embodiment, the first light-emitting element 221 may be a green light-emitting element G, and the second light-emitting element 222 may include a blue light-emitting element B and a red light-emitting element R.

[0120] In an exemplary embodiment, the second sub-pixel P2 emitting light through the blue light-emitting element B and the second sub-pixel P2 emitting light through the red light-emitting element R may be different; that is, the second sub-pixel P2 emitting light through the blue light-emitting element B and the second sub-pixel P2 emitting light through the red light-emitting element R may be independent sub-pixels P.

[0121] For example, such as Figure 6 As shown, Figure 6 This shows a schematic diagram of the field sequence display process for another frame, as shown below. Figure 6 As shown, it includes a green light-emitting element G, a blue light-emitting element B, and a red light-emitting element R, among which the number of sub-pixels P emitting light through the green light-emitting element G is the largest.

[0122] like Figure 6As shown, the backlight is activated in the order of red, green, and blue fields. In the red field R, multiple third sub-pixels P1 are in a transparent state, and each pair of third sub-pixels P1 forms a sub-pixel group R, which is arranged at intervals in the display area. In the green field G, multiple first sub-pixels P2 are in a transparent state, and the multiple first sub-pixels P2 are all the sub-pixels P in the target display area. In the blue field B, multiple second sub-pixels P3 are in a transparent state, and each pair of second sub-pixels P3 forms a sub-pixel group B, which is arranged at intervals in the display area.

[0123] In this way, subpixel group R, subpixel group B, and multiple first subpixels P2 all have overlapping subpixels P. For example, the multiple first subpixels P2 include all the subpixels P in subpixel group R and subpixel group B. Therefore, after the three colors are mixed in a time-division manner, the display color of the target display area can be presented.

[0124] In an exemplary embodiment, taking a plurality of light-emitting elements 22 including a green light-emitting element G, a red light-emitting element R and a blue light-emitting element B as an example, wherein the first light-emitting element 221 may be a green light-emitting element G, wherein when the blue light-emitting element B is lit, the number of sub-pixels P in the target display area that are in a light-transmitting state is equal to the number of sub-pixels P in a light-transmitting state when the red light-emitting element R is lit.

[0125] By adopting this embodiment, the service life of the green light-emitting element G can be extended, and the transmittance of the light emitted by the red light-emitting element R and the blue light-emitting element B can be kept consistent, so that the two light-emitting elements 22 can operate under the same driving current, thereby ensuring that the actual service life of the two light-emitting elements 22 is consistent.

[0126] Of course, in some other examples, the number of sub-pixels P emitting light through the blue light-emitting element B can be less than the number of sub-pixels P emitting light through the red light-emitting element R. Alternatively, the number of sub-pixels P emitting light through the blue light-emitting element B can be greater than the number of sub-pixels P emitting light through the red light-emitting element R.

[0127] In an exemplary embodiment, the light transmission area emitted through the first light-emitting element 221 can also be increased by increasing the aperture ratio of the sub-pixel P that passes through the first light-emitting element 221.

[0128] Please combine Figure 11 As shown, Figure 11 A top-view schematic diagram of three sub-pixels P is shown, as follows: Figure 11 As shown, when the first light-emitting element 221 is lit, the aperture ratio of a single sub-pixel P in the target display area that is in a transparent state is greater than the aperture ratio of a single sub-pixel P in a transparent state when the second light-emitting element 222 is lit.

[0129] like Figure 11 As shown, the aperture of subpixel P refers to the area defined by the opening on the black matrix, in which light is allowed to pass through. The aperture ratio refers to the proportion of the planar area of ​​the aperture of subpixel P to the area of ​​the display area.

[0130] When the aperture ratio of the sub-pixel P that emits light through the first light-emitting element 221 is maximized, the light-emitting area of ​​the first light-emitting element 221 can be guaranteed to be larger.

[0131] Among them, the aperture ratio of a single sub-pixel P that is in a transparent state when the second light-emitting element 222 is lit is relatively small.

[0132] In one example, the maximum difference between the aperture ratio of the sub-pixel P emitting light through the first light-emitting element 221 and the aperture ratio of the single sub-pixel P emitting light through the second light-emitting element 222 can be around 7%, such as 6%, 7%, or 8%.

[0133] like Figure 11 As shown, in an exemplary embodiment, each sub-pixel P in the display area can correspond to a different aperture ratio. For example, the display area can include three types of sub-pixels P, such as the fourth sub-pixel 1121, the fifth sub-pixel 1123, and the sixth sub-pixel 1122.

[0134] Among them, the fourth sub-pixel 1121, the fifth sub-pixel 1123 and the sixth sub-pixel 1122 are arranged periodically in the display area, and the fourth sub-pixel 1121, the fifth sub-pixel 1123 and the sixth sub-pixel 1122 correspond to different aperture ratios;

[0135] When the first light-emitting element 221 is lit, the sub-pixel P with the largest aperture ratio among the fourth sub-pixel 1121, the fifth sub-pixel 1123, and the sixth sub-pixel 1122 is in a light-transmitting state.

[0136] like Figure 11 As shown, each sub-pixel P in the display area can correspond to three aperture ratios. The fourth sub-pixel 1121, the fifth sub-pixel 1123, and the sixth sub-pixel 1122, corresponding to the three aperture ratios, are arranged periodically in the display area. For example, the fourth sub-pixel 1121, the fifth sub-pixel 1123, and the sixth sub-pixel 1122 are arranged periodically in the row direction x. Their arrangement in the row direction can be: fourth sub-pixel 1121, fifth sub-pixel 1123, sixth sub-pixel 1122, fourth sub-pixel 1121, fifth sub-pixel 1123, sixth sub-pixel 1122, fourth sub-pixel 1121, fifth sub-pixel 1123, sixth sub-pixel 1122... In other words, every two adjacent sub-pixels P in the row direction correspond to different aperture ratios.

[0137] refer to Figure 11 , Figure 11 The illustration only shows that the pixel electrode 112 is provided with a pixel electrode layer including multiple slits, and the common electrode 121 is provided with a block structure. Taking the pixel electrode 112 and the common electrode 121 as being located on the same side of the liquid crystal, such as both being located on the same side of the first substrate 111, the pixel electrode 112 can be located on the side of the common electrode 121 away from the first substrate 111. Adjacent common electrodes 121 are electrically connected through a common electrode line CL1 in the same layer as the gate line GL. Optionally, the common electrode line CL1 and the common electrode 121 can be directly electrically connected.

[0138] In one example, the way to achieve different aperture ratios for two adjacent sub-pixels P in this case is to design the area of ​​the pixel electrode 112 of the sub-pixel region differently, such as the area of ​​the orthographic projection of the pixel electrode 112 of two adjacent sub-pixels P on the first substrate 111 being different, thereby achieving a differentiated aperture ratio design.

[0139] In one example, the light-shielding layer in two adjacent sub-pixels P can block different areas to achieve different aperture ratios. For instance, in two adjacent sub-pixels P, the black matrix of the second substrate 122 blocks different areas of the sub-pixel region of the first substrate 111, thus achieving a difference in aperture ratio. (Continuing with...) Figure 11 In this case, the aperture ratio of the green sub-pixel (fourth sub-pixel 1121) is greater than that of the other two color sub-pixels.

[0140] In cases where the occlusion area of ​​the black matrix on the sub-pixel region of the first substrate 111 varies, the connection points of the signal lines on the first substrate can be designed specifically. For example, the electrical connection points of the signal lines (the connection between the signal line and the corresponding electrode) can be located near the sub-pixels with smaller aperture ratios. For instance, as shown... Figure 11 As shown, for the blue sub-pixel (fifth sub-pixel 1123), the connecting electrode portion CL2 that connects the adjacent row common electrode 121 can be set in the area corresponding to the blue sub-pixel. In this way, the aperture ratio of the green sub-pixel (fourth sub-pixel 1121) can be preserved.

[0141] in, Figure 11 This shows that each pair of adjacent sub-pixels P in the row direction corresponds to a different aperture ratio.

[0142] In this context, a column of sub-pixels P in the column direction can correspond to the same aperture ratio.

[0143] In one example, each pair of adjacent sub-pixels P in the column direction can correspond to different aperture ratios.

[0144] like Figure 11As shown, the aperture ratio of the aperture OP of the fourth sub-pixel 1121 can be 63%, the aperture ratio of the aperture OP of the fifth sub-pixel 1123 can be 57.2%, and the aperture ratio of the aperture OP of the sixth sub-pixel 1122 can be 55.6%. The difference between the aperture ratio of the sub-pixel P with the largest aperture ratio and the sub-pixel P with the smallest aperture ratio is 7.4%.

[0145] When the first light-emitting element 221 is lit, the sub-pixel P with the largest aperture ratio among the fourth sub-pixel 1121, the fifth sub-pixel 1123, and the sixth sub-pixel 1122 is in a light-transmitting state, such as... Figure 11 As shown, when the first light-emitting element 221 is lit, the fourth sub-pixel 1121 is in a light-transmitting state.

[0146] Taking multiple light-emitting elements 22, including a green light-emitting element G, a red light-emitting element R, and a blue light-emitting element B, as an example, the green light-emitting element G is the first light-emitting element 221. When the green light-emitting element G emits light, each fourth sub-pixel 1121 is in a light-transmitting state, and the fifth sub-pixel 1123 and the sixth sub-pixel 1122 are in an opaque state. When the blue light-emitting element B emits light, the fifth sub-pixel 1123 is in a light-transmitting state, and the fourth sub-pixel 1121 and the sixth sub-pixel 1122 are in an opaque state. When the red light-emitting element R emits light, the sixth sub-pixel 1122 is in a light-transmitting state, and the fourth sub-pixel 1121 and the fifth sub-pixel 1123 are in an opaque state.

[0147] In this embodiment, when the first light-emitting element 221 is lit, the number of sub-pixels P in the target display area that are in a light-transmitting state can be equal to the number of sub-pixels P in a light-transmitting state when the second light-emitting element 222 is lit.

[0148] In one example, every three adjacent sub-pixels P in the row direction can be a pixel group. Each pixel group can include a fourth sub-pixel 1121, a fifth sub-pixel 1123, and a sixth sub-pixel 1122. In each field sequence, one of the fourth sub-pixel 1121, the fifth sub-pixel 1123, and the sixth sub-pixel 1122 in each pixel group is in a light-transmitting state. In this way, the number of sub-pixels P that emit light through the light-emitting element 22 of each color can be the same. For example, the number of sub-pixels P that emit light through each green light-emitting element G, red light-emitting element R, and blue light-emitting element B is M.

[0149] In this example, it is only necessary to ensure that the sub-pixel P with the largest aperture ratio in each pixel group is in a light-transmitting state when the first light-emitting element 221 emits light. This can increase the light transmission area of ​​the first light-emitting element 221 by increasing the aperture ratio of the sub-pixel P that emits light through the first light-emitting element 221.

[0150] In yet another example, such as Figure 10As shown, every three adjacent sub-pixels P in the row direction can form a pixel group. Each pixel group can include multiple sub-pixels P with the same aperture ratio, and different pixel groups can correspond to different aperture ratios. For example, it includes a first pixel group, a second pixel group, and a third pixel group. The first pixel group includes three fourth sub-pixels 1121, the second pixel group includes three fifth sub-pixels 1123, and the third pixel group includes three sixth sub-pixels 1122. The first pixel group, the second pixel group, and the third pixel group can be arranged periodically in the display area.

[0151] In this example, the pixel group with the largest aperture ratio among multiple pixel groups is in a transparent state when the first light-emitting element 221 emits light. For example... Figure 10 As shown, the number of sub-pixels P passing through the first light-emitting element 221 and the second light-emitting element 222 is the same, but the aperture ratios of the sub-pixels P passing through the first light-emitting element 221 and the second light-emitting element 222 are different, which makes the light-transmitting area of ​​the first light-emitting element 221 larger than the light-transmitting area of ​​the second light-emitting element 222.

[0152] In one embodiment, a control method for a display module is also provided, such as... Figure 13 As shown, a flowchart illustrating the steps of the control method is presented, such as... Figure 13 As shown, this control method can be applied to Figures 1-12 Any of the aforementioned display modules may specifically include the following steps:

[0153] Step S100: Determine the target display area in the screen to be displayed;

[0154] Step S200: The display data of the target display area is divided into multiple sub-display data. Each sub-display data corresponds to a color component in the display screen. Different color components correspond to different color light-emitting elements 22 in the light-emitting unit 220.

[0155] Step S300: For each sub-display data, after controlling a portion of the sub-pixels P in the target display area to be in a light-transmitting state, control the light-emitting element 22 corresponding to that sub-display data to be lit;

[0156] When the first light-emitting element 221 in the light-emitting unit 220 is lit, the area occupied by the sub-pixel P in the target display area that is in a light-transmitting state is greater than the area occupied by the sub-pixel P in the light-transmitting state when the second light-emitting element 222 is lit. The monochromatic light emitted by the first light-emitting element 221 is different from the monochromatic light emitted by the second light-emitting element 222. The second light-emitting element 222 is any light-emitting element 22 in the light-emitting unit 220 other than the first light-emitting element 221.

[0157] In this embodiment, each sub-pixel P in the target display area has the same display color.

[0158] The display data of the target display area can be divided into multiple sub-display data. Each sub-display data corresponds to a color component in the display screen. The sub-display data can refer to the color component map described in the above embodiment. Different color components correspond to different color light-emitting elements 22 in the light-emitting unit 220. In other words, different color component maps correspond to different color light-emitting elements 22.

[0159] The display data may include the display color data of each sub-pixel P in the display area, and the display color data may include the grayscale values ​​in the red channel, green channel and blue channel.

[0160] Specifically, for each sub-display data, a first timing control signal and a second timing control signal can be generated. The first timing control signal is used to control the deflection angle of the liquid crystal 13 of each sub-pixel P in the display area, that is, to apply the corresponding driving voltage to the pixel electrode 112 of each sub-pixel P through the first timing control signal.

[0161] The second timing control signal is used to control the light-emitting elements 22 of different colors in the backlight to emit light in different timing sequences based on each color component map, i.e., time-division light emission.

[0162] Specifically, for each sub-display data, some sub-pixels P in the target display area can be controlled to be in a light-transmitting state at the first time, and the light-emitting element 22 corresponding to the sub-display data can be controlled to be lit at the second time after the first time.

[0163] For example, with Figure 4 For example, the data includes red sub-display data of the red component, green sub-display data of the green component, and blue sub-display data of the blue component. In the field sequence of the red sub-display data, the liquid crystal 13 of multiple third sub-pixels P1 in the cross-shaped display area is first deflected to make them transparent, while the remaining sub-pixels P in the cross-shaped display area are opaque. Then, the red light-emitting element R is controlled to emit light. In the field sequence of the green sub-display data, the liquid crystal 13 of multiple first sub-pixels P2 in the cross-shaped display area is first deflected to make them transparent, while the remaining sub-pixels P in the cross-shaped display area are opaque. Then, the green light-emitting element G is controlled to emit light. In the field sequence of the blue sub-display data, the liquid crystal 13 of multiple second sub-pixels P3 in the cross-shaped display area is first deflected to make them transparent, while the remaining sub-pixels P in the cross-shaped display area are opaque. Then, the blue light-emitting element B is controlled to emit light.

[0164] This allows the cross-shaped pattern to undergo temporal color mixing, and the color mixing scheme uses global color mixing. For example, if a sub-pixel P is in a transparent state in one of the three field sequences, the light transmitted by multiple sub-pixels P will be mixed together to form the display color of the target display area.

[0165] In this embodiment, when the first light-emitting element 221 in the light-emitting unit 220 is lit, the area occupied by the sub-pixel P in the light-transmitting state in the target display area is greater than the area occupied by the sub-pixel P in the light-transmitting state when the second light-emitting element 222 is lit. The monochromatic light emitted by the first light-emitting element 221 is different from the monochromatic light emitted by the second light-emitting element 222. The second light-emitting element 222 is any light-emitting element 22 in the light-emitting unit 220 other than the first light-emitting element 221.

[0166] In this embodiment, in each scene sequence, some sub-pixels P in the target display area can be controlled to be in a light-transmitting state, while the remaining sub-pixels P in the target display area can be in a light-blocking state.

[0167] In one example, the aperture ratio of each sub-pixel P in the display area can be the same. In order to ensure the transmittance of light emitted by the first light-emitting element 221, the number of sub-pixels P that emit light through the first light-emitting element 221 can be maximized.

[0168] For example, in each sequence, the performance parameters of the target light-emitting element 22 in the light-emitting unit 220 corresponding to the sub-display data are determined at the current time, and based on the performance parameters, the target number of sub-pixels P to be transparent in the target display area is determined; then, the target number of sub-pixels P in the target display area are controlled to be in a transparent state.

[0169] Among them, performance parameters are used to characterize the relationship between current magnitude and luminous intensity.

[0170] Generally, there is a direct proportionality between current magnitude and luminous intensity, meaning their relationship can be approximated as linear. The correlation between current magnitude and luminous intensity can be defined as the slope of this linear relationship. For example, the correlation can be expressed as follows:

[0171] L = a * I + b, where a and b are constants.

[0172] With L as a constant, the larger a is, the smaller the current, and the smaller a is, the larger the current. This correlation can characterize the degree of lifespan decay and power consumption of the light-emitting element 22. For example, the larger a is, the slower the lifespan decay may be and the lower the power consumption may be; the smaller a is, the faster the lifespan decay may be and the higher the power consumption may be.

[0173] Therefore, based on the correlation, the lifetime decay rate and power consumption of the light-emitting element 22 targeted by the current field sequence can be determined. Thus, based on the lifetime decay rate and power consumption, the target number of sub-pixels P in the target display area that emit light through the current light-emitting element 22 can be determined. Then, the target number of sub-pixels P are controlled to be in a light-transmitting state.

[0174] For example, the light-emitting element 22, which has a higher lifespan decay rate and power consumption, can correspond to a larger number of sub-pixels P.

[0175] In this embodiment, the light-emitting element 22 with higher lifespan decay and power consumption is the first light-emitting element 221. For example, a green light-emitting element G can generally be used as the first light-emitting element 221.

[0176] In this embodiment, the number of sub-pixels P corresponding to the current light-emitting element 22 can be dynamically determined in each field sequence, thereby adapting the light-transmitting area to the lifespan decay and power consumption of the current light-emitting element 22, thus achieving the ultimate power saving.

[0177] In one embodiment, a display device is also provided, which may include... Figures 1-12 Any of the aforementioned display modules.

[0178] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0179] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0180] The above provides a detailed description of a display module and a control method for the display module provided by this disclosure. Specific examples have been used to illustrate the principles and implementation methods of this disclosure. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this disclosure. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this disclosure. Therefore, the content of this specification should not be construed as a limitation of this disclosure.

[0181] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0182] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

[0183] The terms "an embodiment," "embodiment," or "one or more embodiments" as used herein mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this disclosure. Furthermore, please note that the examples of the phrase "in one embodiment" do not necessarily all refer to the same embodiment.

[0184] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of this disclosure may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0185] In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. This disclosure can be implemented by means of hardware comprising a plurality of different elements and by means of a suitably programmed computer. In a unit claim enumerating a plurality of means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words may be interpreted as names.

[0186] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A display module, characterized by The display panel comprises a display area, and the display area comprises a plurality of arrayed sub-pixels. The display panel comprises a display area, and the display area comprises a plurality of arrayed sub-pixels. The backlight module comprises a plurality of light emitting units, each of which comprises a plurality of light emitting elements emitting different color monochromatic light, and the light emitting units correspond to a plurality of adjacent sub-pixels of the display panel; a plurality of light emitting elements are configured to be lit at different time points. When the first light emitting element in the light emitting unit is lit, the total area of the sub-pixels in the target display area of the display area in a light transmission state is greater than the total area of the sub-pixels in a light transmission state when the second light emitting element is lit; the sub-pixels in the target display area correspond to the same display color, and the monochromatic light emitted by the first light emitting element is different from the monochromatic light emitted by the second light emitting element; the second light emitting element is any light emitting element in the light emitting unit except the first light emitting element. When the first light emitting element is lit, the number of sub-pixels in the target display area in a light transmission state is greater than the number of sub-pixels in a light transmission state when the second light emitting element is lit. When the first light emitting element is lit, the sub-pixels in the target display area in a light transmission state are different from the sub-pixels in a light transmission state when the second light emitting element is lit.

2. The display module of claim 1, wherein, The plurality of light emitting elements comprise green light emitting elements, red light emitting elements, and blue light emitting elements, and the first light emitting element is the green light emitting element.

3. The display module of claim 1, wherein, The plurality of light emitting elements comprise green light emitting elements, red light emitting elements, and blue light emitting elements; the first light emitting element is the green light emitting element; When the blue light emitting element is lit, the number of sub-pixels in the target display area in a light transmission state is equal to the number of sub-pixels in a light transmission state when the red light emitting element is lit.

4. The display module of claim 1, wherein, The plurality of light emitting elements comprise green light emitting elements, red light emitting elements, and blue light emitting elements; the first light emitting element is the green light emitting element; When the green light emitting element is lit, a plurality of first sub-pixels in the target display area are in a light transmission state; when the blue light emitting element is lit, a plurality of second sub-pixels in the target display area are in a light transmission state; and when the red light emitting element is lit, a plurality of third sub-pixels in the target display area are in a light transmission state. The first sub-pixels, the second sub-pixels, and the third sub-pixels are periodically arranged; and in one arrangement period, the number of first sub-pixels is greater than the number of second sub-pixels and third sub-pixels.

5. The display module of any of claims 1-4, wherein, When the first light emitting element is lit, the aperture ratio of a single sub-pixel in the target display area in a light transmission state is greater than the aperture ratio of a single sub-pixel in a light transmission state when the second light emitting element is lit.

6. The display module of claim 5, wherein, The plurality of sub-pixels comprise fourth sub-pixels, fifth sub-pixels, and sixth sub-pixels. The fourth sub-pixel, the fifth sub-pixel and the sixth sub-pixel are periodically arranged in the display area, and the fourth sub-pixel, the fifth sub-pixel and the sixth sub-pixel correspond to different opening rates. When the first light-emitting element is turned on, the sub-pixel with the largest opening rate among the fourth sub-pixel, the fifth sub-pixel and the sixth sub-pixel is in the light-transmitting state.

7. The display module of claim 5, wherein, When the first light-emitting element is turned on, the number of sub-pixels in the light-transmitting state in the target display area is equal to the number of sub-pixels in the light-transmitting state when the second light-emitting element is turned on.

8. A control method of a display module, characterized by, The display module is used for controlling the display module as claimed in any one of claims 1-7, comprising: determining a target display area in a to-be-displayed picture, each sub-pixel in the target display area having the same display color; splitting display data of the display picture of the target display area into a plurality of sub-display data, each sub-display data corresponding to a color component in the display picture, and different color components corresponding to light-emitting elements of different colors in the light-emitting unit; for each sub-display data, controlling part of the sub-pixels in the target display area to be in the light-transmitting state, and then controlling the light-emitting element corresponding to the sub-display data to be turned on; When the first light-emitting element in the light-emitting unit is turned on, the total area of the sub-pixels in the light-transmitting state in the target display area is greater than the total area of the sub-pixels in the light-transmitting state when the second light-emitting element is turned on, the monochromatic light emitted by the first light-emitting element is different from the monochromatic light emitted by the second light-emitting element, and the second light-emitting element is any light-emitting element in the light-emitting unit except the first light-emitting element.

9. The control method of the display module according to claim 8, wherein The control of part of the sub-pixels in the target display area to be in the light-transmitting state for each sub-display data comprises: determining a target performance parameter of the target light-emitting element in the light-emitting unit corresponding to the sub-display data, the performance parameter being used to represent the correlation between the current size and the light-emitting brightness; based on the performance parameter, determining a target number of sub-pixels to be in the light-transmitting state in the target display area; controlling the target number of sub-pixels in the target display area to be in the light-transmitting state.

Images