Color film substrate, display panel, display device and brightness partition control method

Abstract

The application provides a color film substrate, a display panel, a display device and a brightness partition control method, and belongs to the technical field of display. The color film substrate comprises a light-transmitting substrate, a conductive layer, a color resistance liquid layer and a plurality of interval plates. The conductive layer comprises a plurality of conductive parts, and at least one via hole is formed in each conductive part. The color resistance liquid layer comprises a plurality of color resistance liquid parts, and one color resistance liquid part is arranged on each conductive part. The interval plate is arranged between adjacent color resistance liquid parts and adjacent conductive parts to isolate the adjacent color resistance liquid parts and the adjacent conductive parts. The color resistance liquid layer comprises a charged color resistance liquid layer or a magnetic color resistance liquid layer. By applying a voltage to the corresponding conductive part, the charged color resistance liquid layer or the magnetic color resistance liquid layer can be gathered to the corresponding conductive part, so that the via hole position formed in the conductive part is no longer filled with the color resistance liquid. The white light emitted by the backlight can pass through the via hole of the conductive part, so that the transmittance of the backlight can be improved, and the brightness of the display partition corresponding to the conductive part can be improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a color filter substrate, display panel, display device, and brightness zoning control method. Background Technology

[0002] Liquid crystal displays (LCDs) are widely used in various electronic devices, such as televisions and computer monitors. The color filter substrate is a key component for colorization in LCDs and accounts for the highest cost of the display. Typically, the color filter substrate includes a glass substrate, a black matrix, and color resist layers. Different colored resists transmit light of their corresponding color wavelengths, ultimately achieving color display on the screen.

[0003] Related technologies can increase backlight brightness by reducing the width of the black matrix, thereby improving the display brightness of the screen. However, adjusting the width of the black matrix can only adjust the overall display brightness of the screen, and cannot adjust the brightness of different areas of the screen separately. Summary of the Invention

[0004] The main objective of this application is to provide a color filter substrate, a display panel, a display device, and a brightness zoning control method, which aims to improve the color filter substrate so as to enable zoning adjustment of image brightness in different areas of the display screen.

[0005] To achieve the above objectives, a first aspect of this application provides a color filter substrate, comprising:

[0006] Transparent substrate and multiple spacers;

[0007] A conductive layer is formed on the light-transmitting substrate. The conductive layer includes a plurality of conductive portions. A spacer is disposed between adjacent conductive portions to isolate adjacent conductive portions. Each conductive portion has at least one via.

[0008] The color resist liquid layer includes multiple color resist liquid sections, with one color resist liquid section corresponding to each of the conductive sections. The spacer is disposed between adjacent color resist liquid sections to isolate them. The color resist liquid layer includes an charged color resist liquid layer or a magnetic color resist liquid layer.

[0009] In one embodiment of this application, the color filter substrate further includes a transparent solution layer, the transparent solution layer includes a plurality of transparent solution portions, each of the color resist liquid portions having a corresponding transparent solution portion formed thereon, the spacer plate is disposed between adjacent transparent solution portions to isolate adjacent transparent solution portions, the transparent solution in the transparent solution layer is immiscible with the color resist liquid in the color resist liquid layer, and the density of the transparent solution is less than the density of the color resist liquid.

[0010] In one embodiment of this application, the color filter substrate further includes an insulating layer disposed between the conductive layer and the light-transmitting substrate, and the insulating layer has at least one opening at each of the conductive portions.

[0011] In one embodiment of this application, the color filter substrate further includes a control line layer, the control line layer includes a plurality of control line portions, each of the conductive portions is provided with a corresponding control line portion, and the control line portion is electrically connected to the corresponding conductive portion through a corresponding opening on the insulating layer.

[0012] In one embodiment of this application, the control line layer is disposed between the light-transmitting substrate and the insulating layer.

[0013] In one embodiment of this application, the conductive layer is made of a transparent conductive material.

[0014] In one embodiment of this application, the color filter substrate further includes a glass cover plate disposed on the color resist layer.

[0015] To achieve the above objectives, a second aspect of this application provides a display panel, comprising:

[0016] The color filter substrate provided in any embodiment of this application;

[0017] Array substrate;

[0018] A liquid crystal layer is encapsulated between the color filter substrate and the array substrate.

[0019] To achieve the above objectives, a third aspect of the present application provides a display device including the display panel described in the embodiments of the present application.

[0020] To achieve the above objectives, a fourth aspect of this application provides a brightness zoning control method for a display panel, executed based on the display panel provided in this application. The display panel includes multiple display sub-regions, each sub-region corresponding to a conductive part. The control method includes:

[0021] Based on the display information and brightness information of each display sub-region, a first instruction or a second instruction is generated to adjust the display brightness of each of the display sub-regions;

[0022] In response to the first instruction, control the input of a conductive voltage to the conductive part corresponding to the corresponding display sub-region, or in response to the second instruction, control the non-input of a conductive voltage to the conductive part corresponding to the corresponding display sub-region.

[0023] In the technical solution provided in this application embodiment, the color filter substrate includes a light-transmitting substrate, a conductive layer, a color resist layer, and multiple spacers. The conductive layer is formed on the light-transmitting substrate and includes multiple conductive portions. Spacers are disposed between adjacent conductive portions to isolate them. Each conductive portion has at least one via. The color resist layer includes multiple color resist portions, with one color resist portion corresponding to each conductive portion. Spacers are disposed between adjacent color resist portions to isolate them. The color resist layer includes a charged color resist layer or a magnetic color resist layer. Therefore, by improving the configuration of the color filter substrate, by applying a voltage to the corresponding conductive portion, the charged or magnetic color resist layer can accumulate at the corresponding conductive portion, causing the via positions on the conductive portion to no longer be filled with color resist. This allows white light emitted from the backlight to pass through the vias of the conductive portion, thereby improving the backlight transmittance and increasing the brightness of the display zone corresponding to that conductive portion. By not applying voltage to the corresponding conductive parts, the color resist liquid flows horizontally onto the conductive parts. The vias on the conductive parts are filled with color resist liquid, so that the white light emitted by the backlight must pass through the color resist liquid to become light of the corresponding color, thus maintaining the display contrast. In other words, by making the conductive parts corresponding to different areas of the display screen conductive or non-conductive, the brightness of the image in different areas of the display screen can be adjusted in zones, achieving higher dynamic contrast and color saturation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the color filter substrate provided in Embodiment 1 of this application;

[0025] Figure 2 This is a schematic diagram of the structure of the color filter substrate provided in Embodiment 2 of this application;

[0026] Figure 3 This is a schematic diagram of the state of the color filter substrate when the conductive layer is not conductive, as provided in the embodiments of this application;

[0027] Figure 4 This is a schematic diagram of the state of the color filter substrate after the conductive layer has been made conductive, provided in an embodiment of this application.

[0028] Figure 5 This is a schematic diagram of the structure of the color filter substrate provided in Embodiment 3 of this application;

[0029] Figure 6 This is a schematic diagram of the structure of the color filter substrate provided in Embodiment 4 of this application;

[0030] Figure 7 This is a schematic diagram of the structure of the color filter substrate provided in Embodiment 5 of this application;

[0031] Figure 8 This is a schematic diagram of the structure of the display panel provided in an embodiment of this application;

[0032] Figure 9 This is a schematic diagram of the structure of the display device provided in the embodiments of this application;

[0033] Figure 10 This is a flowchart of a brightness zoning control method for a display panel provided in an embodiment of this application.

[0034] Figure label:

[0035] Transparent substrate-110; conductive layer-120; color resist layer-130; color resist portion-131; spacer-140; conductive portion-121; via-1211; transparent solution layer-150; transparent solution portion-151; insulating layer-160; opening-161; control line layer-170; control line portion-171; glass cover plate-180; color filter substrate-100; array substrate-200; liquid crystal layer-300; display device-900. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0037] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0039] With the development of technology, electronic products (such as smart terminals) are increasingly being used in people's lives; and some smart terminals with image display functions (such as monitors, televisions, etc.) are also pursuing higher and higher image display effects (such as brightness, color, etc.); in order to achieve high-quality image display effects, a batch of smart terminals with local dimming function have emerged, that is, to realize regional adjustment of the display screen and to control the brightness or color of the image in different areas separately.

[0040] Liquid crystal displays (LCDs) are widely used in various electronic devices, such as televisions and computer monitors. The color filter substrate is a key component for colorization in LCDs and accounts for the highest cost of the display. Typically, the color filter substrate includes a glass substrate, a black matrix, and color resist layers. Different colored resists transmit light of their corresponding color wavelengths, ultimately achieving color display on the screen.

[0041] Related technologies can increase backlight brightness by reducing the width of the black matrix, thereby improving the display brightness of the screen. However, adjusting the width of the black matrix can only adjust the overall display brightness of the screen, and cannot adjust the brightness of different areas of the screen separately.

[0042] Based on this, embodiments of this application provide a color filter substrate, which, through improved settings of the color filter substrate, enables zoned adjustment of image brightness in different areas of the display screen.

[0043] Example 1

[0044] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of the color filter substrate provided in Embodiment 1 of this application. Figure 1 As shown, the color filter substrate includes a light-transmitting substrate 110, a conductive layer 120, a color resist layer 130, and a plurality of spacers 140. The conductive layer 120 is formed on the light-transmitting substrate 110 and includes a plurality of conductive portions 121. The spacers 140 are disposed between adjacent conductive portions 121 to isolate them. Each conductive portion 121 has at least one via 1211. The color resist layer 130 includes a plurality of color resist portions 131. Each conductive portion 121 has a corresponding color resist portion 131. The spacers 140 are disposed between adjacent color resist portions 131 to isolate them. The color resist layer 130 includes an charged color resist layer or a magnetic color resist layer.

[0045] In this embodiment, the color filter substrate includes a conductive layer 120, wherein the conductive layer 120 includes a plurality of conductive portions 121, each of which corresponds to a different display sub-region of the display image. Therefore, by applying a voltage to the conductive portion 121 corresponding to the display sub-region, the color resist liquid portions 131 corresponding to the conductive portion 121 can accumulate at the corresponding conductive portion 121, causing the vias 1211 on the conductive portion 121 to no longer be filled with color resist liquid portions 131. This allows white light emitted from the backlight to pass through the vias 1211 of the conductive portion 121, thereby improving the backlight transmittance and increasing the brightness of the display sub-region corresponding to the conductive portion 121. By not applying voltage to the conductive part 121 corresponding to the display sub-area, the color resist liquid part 131 corresponding to the conductive part 121 flows horizontally onto the conductive part 121. The vias 1211 opened on the conductive part 121 are filled with color resist liquid part 131 at the positions corresponding to the color resist liquid part 131, so that the white light emitted by the backlight needs to pass through the color resist liquid to become light of the corresponding color, thus maintaining the display contrast. In other words, by making the conductive part 121 corresponding to different display sub-areas of the display screen conductive or non-conductive, the image brightness of different display sub-areas of the display screen can be adjusted in zones, thereby achieving higher dynamic contrast and color saturation.

[0046] It should be noted that the color resist liquid part 131 is a fluid color resist liquid. The vias 1211 formed in each conductive part 121 can be square, circular, or other irregular shapes. This embodiment does not limit the specific location, number, or shape of the vias 1211 formed on the conductive part 121, but it must at least satisfy the requirement that the total area of ​​the orthographic projection of the vias 1211 formed at the corresponding conductive part 121 location of each pixel area on the light-transmitting substrate 110 should not exceed the area of ​​the orthographic projection of the pixel area on the light-transmitting substrate 110. Therefore, it is possible to achieve zoned adjustment of image brightness in different areas of the display screen without affecting the normal display of the image.

[0047] In one embodiment of this application, a via 1211 can be formed at the location of the conductive portion 121 corresponding to each pixel region, that is, the number of vias 1211 is the same as the number of pixel regions. Thus, after a voltage is applied to the conductive portion 121, the white light generated by the backlight of each pixel region can be controlled to pass through the corresponding via 1211, thereby improving brightness uniformity.

[0048] In one embodiment of this application, the conductive layer 120 is made of a transparent conductive material. Transparent conductive materials include transparent metal films, transparent metal oxide films, non-metal oxide films, and conductive particle-dispersed ferroelectric materials, etc. The film can be in the form of a single-layer film, a two-layer film, a multi-layer film or a multilayer film, undoped, doped, or multi-element. Preferably, the transparent conductive material is a metal oxide film, such as indium tin oxide (ITO) film.

[0049] Example 2

[0050] In one embodiment of this application, reference is made to Figure 2 , Figure 2 This is a schematic diagram of the structure of the color filter substrate provided in Embodiment 2 of this application. Figure 2 As shown, the color filter substrate includes a light-transmitting substrate 110, a conductive layer 120, a color resist layer 130, multiple spacers 140, and a transparent solution layer 150. The conductive layer 120 is formed on the light-transmitting substrate 110 and includes multiple conductive portions 121. Spacers 140 are disposed between adjacent conductive portions 121 to isolate them. Each conductive portion 121 has at least one via 1211. The color resist layer 130 includes multiple color resist portions 131, with one color resist portion 131 corresponding to each conductive portion 121. Spacers 140 are disposed between adjacent color resist portions 131 to isolate them. The color resist layer 130 includes an charged color resist layer or a magnetic color resist layer. The transparent solution layer 150 includes a plurality of transparent solution sections 151, and a corresponding transparent solution section 151 is formed on each color resist liquid section 131. A spacer plate 140 is disposed between adjacent transparent solution sections 151 to isolate adjacent transparent solution sections 151. The transparent solution in the transparent solution layer 150 is immiscible with the color resist liquid in the color resist liquid layer 130, and the density of the transparent solution is less than the density of the color resist liquid.

[0051] In this embodiment, a transparent solution layer 150 is formed on the color filter substrate. The transparent solution layer 150 includes multiple transparent solution portions 151, with one transparent solution portion 151 corresponding to each color resist portion 131. When a voltage is applied to the conductive portion 121 corresponding to the display sub-region, the color resist portions 131 on the conductive portion 121 accumulate on the corresponding conductive portion 121. Simultaneously, the transparent solution portions 151 fill the unfilled spaces of the color resist portions 131, that is, fill the positions of the vias 1211 on the conductive portion 121 corresponding to the color resist portions 131. This further limits the vias 1211 on the conductive portion 121 from being filled with color resist, allowing white light emitted from the backlight to pass through the vias 1211 of the conductive portion 121, thereby improving the backlight transmittance and increasing the brightness of the display sub-region corresponding to the conductive portion 121. When no voltage is applied to the conductive portion 121 corresponding to the display sub-area, the color resist liquid portion 131 on the conductive portion 121 flows horizontally onto the conductive portion 121. Simultaneously, since the transparent solution in the transparent solution layer 150 is immiscible with the color resist liquid in the color resist liquid layer 130, and the density of the transparent solution is less than the density of the color resist liquid, the transparent solution portion 151 flows horizontally onto the corresponding color resist liquid portion 131. At this time, the vias 1211 opened on the conductive portion 121 are filled with color resist liquid portions 131 at the corresponding positions, so that the white light emitted by the backlight needs to pass through the color resist liquid to become light of the corresponding color, maintaining the display contrast. In other words, by making the conductive portion 121 corresponding to different display sub-areas of the display screen conductive or non-conductive, the image brightness in different display sub-areas of the display screen can be adjusted in zones, achieving higher dynamic contrast and color saturation.

[0052] It should be noted that the color resist liquid section 131 is a color resist liquid in a fluid state, and the transparent solution section 151 is a transparent solution in a fluid state. (Refer to...) Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the state of the color filter substrate when the conductive layer is not conductive, as provided in the embodiments of this application. Figure 4 This is a schematic diagram of the state of the color filter substrate after the conductive layer has been made conductive, as provided in an embodiment of this application. Figure 3 As shown, when no voltage is applied to the conductive layer 120, that is, when no conductive part 121 is conductive, the color resist liquid part 131 fills the conductive part 121 and the via 1211 opened on the conductive part 121. Figure 4 As shown, when a voltage is applied to the conductive layer 120, that is, when all conductive parts 121 are conductive, the color resist liquid part 131 only fills the conductive parts 121, and the through holes 1211 opened on the conductive parts 121 are filled by the transparent solution part 151.

[0053] Example 3

[0054] In one embodiment of this application, reference is made to Figure 5 , Figure 5 This is a schematic diagram of the structure of the color filter substrate provided in Embodiment 3 of this application. Figure 5 As shown, the color filter substrate includes a light-transmitting substrate 110, a conductive layer 120, a color resist layer 130, multiple spacers 140, a transparent solution layer 150, and an insulating layer 160. The conductive layer 120 is formed on the light-transmitting substrate 110 and includes multiple conductive portions 121. Spacers 140 are disposed between adjacent conductive portions 121 to isolate them. Each conductive portion 121 has at least one via 1211. The color resist layer 130 includes multiple color resist portions 131, with one color resist portion 131 corresponding to each conductive portion 121. Spacers 140 are disposed between adjacent color resist portions 131 to isolate them. The color resist layer 130 includes an charged color resist layer or a magnetic color resist layer. The transparent solution layer 150 includes a plurality of transparent solution portions 151, with one transparent solution portion 151 corresponding to each color resist portion 131. Spacers 140 are disposed between adjacent transparent solution portions 151 to isolate them. The transparent solution in the transparent solution layer 150 is immiscible with the color resist in the color resist layer 130, and the density of the transparent solution is less than the density of the color resist. An insulating layer 160 is disposed between the conductive layer 120 and the light-transmitting substrate 110, and the insulating layer 160 has at least one opening 161 corresponding to each conductive portion 121.

[0055] In this embodiment, an insulating layer 160 is provided on the color filter substrate, wherein the insulating layer 160 is disposed between the conductive layer 120 and the light-transmitting substrate 110. Thus, the conductive layer 120 can be isolated from the light-transmitting substrate 110 by the insulating layer 160, meaning that each conductive portion 121 can be isolated from the light-transmitting substrate 110 by the insulating layer 160. Based on the display panel formation process, the light-transmitting substrate 110 is generally a coated substrate, and a transparent electrode (indium tin oxide, ITO) is deposited on the light-transmitting substrate 110. Simultaneously, the liquid crystal layer is formed on the side of the light-transmitting substrate 110 away from the conductive layer 120. Therefore, since the insulating layer 160 can isolate the conductive layer 120 from the light-transmitting substrate 110, the electric field generated by the conductive portion 121 will not affect the liquid crystal layer after a voltage is applied to it, thereby ensuring display quality. Meanwhile, at least one opening 161 is provided in the insulating layer 160 corresponding to each conductive part 121, so that a wire harness (such as an electric wire) can be introduced through the opening 161 to connect to the conductive part 121 so as to conduct electricity to the conductive part 121.

[0056] It should be noted that the openings 161 provided on the insulating layer 160 corresponding to each conductive part 121 should not overlap with the through holes 1211 provided on the conductive part 121, so as to prevent the color resist liquid part 131 (when it is not conductive) or the transparent solution part 151 (when it is conductive) filled in the through hole 1211 from flowing onto the light-transmitting substrate 110 through the openings 161, which would affect the normal display of the display screen.

[0057] Example 4

[0058] In one embodiment of this application, reference is made to Figure 6 , Figure 6 This is a schematic diagram of the structure of the color filter substrate provided in Embodiment 4 of this application. Figure 6 As shown, the color filter substrate includes a light-transmitting substrate 110, a conductive layer 120, a color resist layer 130, multiple spacers 140, a transparent solution layer 150, an insulating layer 160, and a control line layer 170. The conductive layer 120 is formed on the light-transmitting substrate 110 and includes multiple conductive portions 121. Spacers 140 are disposed between adjacent conductive portions 121 to isolate them. Each conductive portion 121 has at least one via 1211. The color resist layer 130 includes multiple color resist portions 131, with one color resist portion 131 corresponding to each conductive portion 121. Spacers 140 are disposed between adjacent color resist portions 131 to isolate them. The color resist layer 130 includes an charged color resist layer or a magnetic color resist layer. The transparent solution layer 150 includes a plurality of transparent solution portions 151, with one transparent solution portion 151 corresponding to each color resist liquid portion 131. A spacer 140 is disposed between adjacent transparent solution portions 151 to isolate them. The transparent solution in the transparent solution layer 150 is immiscible with the color resist liquid in the color resist liquid layer 130, and the density of the transparent solution is less than the density of the color resist liquid. An insulating layer 160 is disposed between the conductive layer 120 and the light-transmitting substrate 110. The insulating layer 160 has at least one opening 161 corresponding to each conductive portion 121. The control line layer 170 includes a plurality of control line portions 171, with one control line portion 171 corresponding to each conductive portion 121. The control line portions 171 are electrically connected to the corresponding conductive portions 121 through the corresponding openings 161 on the insulating layer 160.

[0059] In this embodiment, a control line layer 170 is provided on the color filter substrate. The control line layer 170 includes multiple control line portions 171, with each conductive portion 121 corresponding to a control line portion 171. Each control line portion 171 is electrically connected to its corresponding conductive portion 121 through a corresponding opening 161 on the insulating layer 160. Thus, each conductive portion 121 can be electrically connected to its corresponding control line portion 171 through the opening 161 on the insulating layer 160. By controlling whether the corresponding conductive portion 121 is conductive or not conductive through each control line portion 171, the conductive portion 121 corresponding to the display sub-area can be made conductive, thereby improving the display brightness of the display sub-area. Alternatively, the control line portion 171 can be used to control the conductive portion 121 corresponding to the display sub-area to be non-conductive, thereby maintaining the display contrast of the display sub-area.

[0060] In this embodiment, when the image is bright, the overall brightness is high, and the brightness changes of different display sub-regions are relatively insignificant. If zoned brightness control is not used to adjust the brightness of different display sub-regions separately, the details of brightness variations in the image may be overlooked, leading to a decrease in image contrast. Conversely, when the displayed image is dark, the brightness and color variations are subtle. However, the significant difference in brightness between different display sub-regions can cause large differences in display brightness, resulting in flickering and color banding at varying brightness levels. Therefore, zoned brightness control of different display sub-regions is necessary to achieve higher dynamic contrast and color saturation. Specifically, this embodiment proposes a color filter substrate that can control the conductivity of the corresponding conductive portion 121 via the control line 171 to achieve zoned brightness adjustment of different display sub-regions.

[0061] It should be noted that, in this embodiment of the application, one end of each control line portion 171 of the control line layer 170 is electrically connected to the corresponding conductive portion 121 through the corresponding opening 161 on the insulating layer 160, and the other end of each control line portion 171 is connected to the driver chip (Driver IC). That is, the driver chip controls the conduction or non-conduction of each conductive portion 121, thereby realizing the zoned adjustment of the display brightness of different display sub-areas of the display screen.

[0062] It should be noted that the other end of each control line 171 can be directly connected to the driver IC, or it can be connected to the COF or A-side substrate and then connected to the driver IC.

[0063] It should be noted that the wiring position of the control line layer 170 coincides with the position of the data line (i.e. TFT circuit) on the array substrate in the display panel, so there will be no additional loss in pixel aperture ratio.

[0064] In one embodiment of this application, the control line layer 170 is disposed between the light-transmitting substrate 110 and the insulating layer 160. That is, the control line layer 170 and the conductive layer 120 are separated only by the insulating layer 160. Therefore, only corresponding openings 161 need to be provided on the insulating layer 160, so that each control line portion 171 in the control line layer 170 can be connected by metal wires through the openings 161, which can save the wiring length of the metal wires.

[0065] Example 5

[0066] In one embodiment of this application, reference is made to Figure 7 , Figure 7 This is a schematic diagram of the structure of the color filter substrate provided in Embodiment 5 of this application. Figure 7 As shown, the color filter substrate includes a light-transmitting substrate 110, a conductive layer 120, a color resist layer 130, multiple spacers 140, a transparent solution layer 150, an insulating layer 160, a control line layer 170, and a glass cover plate 180. The conductive layer 120 is formed on the light-transmitting substrate 110 and includes multiple conductive portions 121. Spacers 140 are disposed between adjacent conductive portions 121 to isolate them. Each conductive portion 121 has at least one via 1211. The color resist layer 130 includes multiple color resist portions 131, with one color resist portion 131 corresponding to each conductive portion 121. Spacers 140 are disposed between adjacent color resist portions 131 to isolate them. The color resist layer 130 includes an charged color resist layer or a magnetic color resist layer. The transparent solution layer 150 includes a plurality of transparent solution portions 151, with one transparent solution portion 151 corresponding to each color resist liquid portion 131. A spacer 140 is disposed between adjacent transparent solution portions 151 to isolate them. The transparent solution in the transparent solution layer 150 is immiscible with the color resist liquid in the color resist liquid layer 130, and the density of the transparent solution is less than the density of the color resist liquid. An insulating layer 160 is disposed between the conductive layer 120 and the light-transmitting substrate 110. The insulating layer 160 has at least one opening 161 corresponding to each conductive portion 121. The control line layer 170 includes a plurality of control line portions 171, with one control line portion 171 corresponding to each conductive portion 121. The control line portions 171 are electrically connected to the corresponding conductive portion 121 through the corresponding opening 161 on the insulating layer 160. A glass cover plate 180 is disposed on the color resist liquid layer 130.

[0067] In this embodiment, the color filter substrate further includes a glass cover plate 180, which is disposed on the color resist layer 130. Thus, the conductive layer 120 and the color resist layer 130 are formed between the light-transmitting substrate 110 and the glass cover plate 180. Therefore, by controlling whether the conductive portion 121 is conductive or not, the flow of the color resist in the color resist layer 130 between the light-transmitting substrate 110 and the glass cover plate 180 is controlled.

[0068] It should be noted that when there is no transparent solution layer 150, the glass cover plate 180 is disposed on the upper surface of the color resist liquid layer 130; and when a transparent solution layer 150 is disposed on the color resist liquid layer 130, the glass cover plate 180 is disposed on the upper surface of the transparent solution layer 150.

[0069] In this embodiment, by improving the color filter substrate, without changing the existing display panel architecture, the white light transmittance is greatly increased while avoiding the drawbacks of decreased color detail and potentially low display contrast caused by RGBW four-color pixels. Furthermore, depending on the usage scenario, transmittance can be selectively increased or contrast maintained in different display sub-areas of the displayed image.

[0070] Reference Figure 8 , Figure 8 This is a schematic diagram of the structure of the display panel provided in the embodiments of this application. Figure 6 As shown, the display panel includes the color filter substrate 100 provided in any embodiment of this application.

[0071] In this embodiment, since the display panel includes the color filter substrate 100 provided in any embodiment of this application, the display panel of this application can adjust the image brightness in different areas of the display screen by controlling the conductivity or non-conductivity of each conductive part 121.

[0072] Reference Figure 8 The display panel also includes an array substrate 200 and a liquid crystal layer 300, wherein the liquid crystal layer 300 is encapsulated between the color filter substrate 100 and the array substrate 200.

[0073] In this embodiment, the array substrate 200 typically has a thin-film transistor structure to deflect liquid crystal molecules in the liquid crystal layer 300 by controlling changes in the electric field. The color filter substrate 100 is used to achieve the color display effect of the display panel. Furthermore, by controlling the conductivity or non-conductivity of each conductive part 121, the brightness of the image in different areas of the display screen can be adjusted in zones. In addition, polarizers are also provided on the color filter substrate 100 and the array substrate 200. Polarizers play an important role in the display panel; a display panel without a polarization structure cannot display images properly.

[0074] Reference Figure 9, Figure 9 This is a schematic diagram of the structure of the display device provided in the embodiments of this application. Figure 9 As shown, the display device 900 includes the display panel provided in the embodiments of this application.

[0075] In addition, the display device 900 also includes a backlight module, a main control circuit board, and a frame, wherein the main control circuit board is connected to the input circuit of the display panel through a flexible circuit board.

[0076] The display device 900 provided in this application can be any product or component with display function, such as an LCD panel, electronic paper, OLED panel, LCD TV, LCD monitor, digital photo frame, mobile phone, or tablet computer.

[0077] Reference Figure 10 , Figure 10 This is a flowchart of a brightness zoning control method for a display panel provided in an embodiment of this application, which is executed by a display panel provided in any embodiment of this application, including but not limited to steps S1010 to S1020.

[0078] Step S1010: Based on the display information and brightness information of each display sub-region, generate a first instruction or a second instruction to adjust the display brightness of each display sub-region;

[0079] In step S1020, in response to the first instruction, control the input of a conductive voltage to the conductive part corresponding to the corresponding display sub-region, or in response to the second instruction, control the non-input of a conductive voltage to the conductive part corresponding to the corresponding display sub-region.

[0080] In this embodiment, the display panel includes multiple display sub-regions, each corresponding to a conductive part. The timing control module (TCON board) generates a first or second instruction to adjust the display brightness of each display sub-region based on the display information and brightness information of each sub-region. This first or second instruction is then sent to the driver chip. The driver chip, according to the first instruction, controls the input of a conductive voltage to the conductive part corresponding to the corresponding display sub-region. This causes the corresponding color resist liquid to accumulate on the conductive part, preventing the vias on the conductive part from being filled with color resist liquid. This allows white light emitted from the backlight to pass through the vias of the conductive part, thereby improving the backlight transmittance and increasing the brightness of the display zone corresponding to the conductive part. Alternatively, the driver chip, according to the second instruction, controls the input of no conductive voltage to the conductive part corresponding to the corresponding display sub-region. This allows the color resist liquid to flow horizontally on the conductive part, filling the vias on the conductive part with color resist liquid. This ensures that the white light emitted from the backlight passes through the color resist liquid to become light of the corresponding color, maintaining display contrast.

[0081] For example, the display panel includes three display sub-regions, namely display sub-region A, display sub-region B, and display sub-region C from left to right. Display sub-region A corresponds to conductive part 1, display sub-region B corresponds to conductive part 2, and display sub-region C corresponds to conductive part 3. For the current frame, the timing control module (TCON board) generates instructions to adjust the display brightness of each display sub-region based on the display information and brightness information of display sub-regions A, B, and C. For instance, when the overall brightness of the current frame is high, the brightness changes of different display sub-regions are relatively insignificant, resulting in low contrast. In this case, to improve the contrast, the timing control module (TCON board) generates a first instruction for display sub-region A, and a second instruction for display sub-regions B and C, and sends the generated first and second instructions to the driver chip. This causes the driver chip to control conductive part 1 to apply voltage according to the first instruction corresponding to display sub-region A, thereby increasing the display brightness of display sub-region A. The driver chip also controls conductive parts 2 and 3 to remain unvoltageed according to the second instructions corresponding to display sub-regions B and C, thus maintaining the brightness of display sub-regions B and C. This allows for partial improvement of the display's contrast through zonal brightness control of each display sub-region. When the overall brightness of the current frame is low, the changes in brightness and color are subtle. However, significant differences in brightness between different display sub-regions can cause flickering and color banding issues. To address this uneven brightness, the brightness of each display sub-region can be adjusted zonal. For example, if display sub-region A is relatively dark, the timing control module (TCON board) can generate a corresponding first instruction. Conversely, if display sub-regions B and C are relatively bright, the timing control module (TCON board) can generate corresponding second instructions. These first and second instructions are then sent to the driver chip. The driver chip controls the conductive part 1 to apply voltage according to the first instruction corresponding to display sub-region A, thereby increasing the display brightness of display sub-region A. The driver chip also controls the conductive parts 2 and 3 to not apply voltage according to the second instructions corresponding to display sub-regions B and C, thus maintaining the display brightness of display sub-regions B and C. By controlling the brightness of each display sub-region in a zonal manner, the display brightness of each display sub-region can be made closer, thereby improving the problem of uneven display brightness.

[0082] It should be noted that, in the embodiments of this application, the white light transmittance of the corresponding display sub-region can also be controlled by controlling the voltage delivered to the conductive part of different magnitudes, thereby allowing the display brightness of each display sub-region to be adjusted to different degrees.

[0083] For example, the display panel includes three display sub-areas, namely display sub-area A, display sub-area B, and display sub-area C from left to right. Display sub-area A corresponds to conductive part 1, display sub-area B corresponds to conductive part 2, and display sub-area C corresponds to conductive part 3. For the current frame, the timing control module (TCON board) can generate instructions to adjust the display brightness of each display sub-area based on the display information and brightness information of display sub-areas A, B, and C. For example, when the overall brightness of the current frame is low, the changes in brightness and color are subtle. Because the brightness of different display sub-areas differs significantly, the display brightness of different zones may also vary considerably, causing flickering and color banding issues. To solve this uneven brightness problem, the display brightness of each display sub-area can be adjusted accordingly. For example, if the display brightness of display sub-area A is very low, the timing control module (TCON board) can generate a corresponding first instruction. For display sub-region B, whose display brightness is relatively dim, the timing control module (TCON board) can generate a corresponding second instruction. For display sub-region C, whose display brightness is relatively bright, the timing control module (TCON board) can generate a corresponding third instruction. Simultaneously, the driver chip sends the generated first, second, and third instructions to the driver chip. This causes the driver chip to control conductive part 1 to apply a first voltage according to the first instruction corresponding to display sub-region A, control conductive part 2 to apply a second voltage according to the second instruction corresponding to display sub-region B, and control conductive part 3 to not apply voltage according to the third instruction corresponding to display sub-region C. The first voltage is greater than the second voltage, thus significantly increasing the display brightness of display sub-region A, relatively slightly increasing the display brightness of display sub-region B, and not changing the display brightness of display sub-region C. This allows the display brightness of display sub-regions A and B to be close to that of display sub-region C, thereby improving the problem of uneven display brightness.

[0084] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0085] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of this application, and may include more or fewer steps than shown, or combine certain steps, or different steps.

[0086] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0087] Those skilled in the art will understand that all or some of the steps in the methods disclosed above, as well as the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, or suitable combinations thereof.

[0088] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0089] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0090] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication bonding shown or discussed between the devices or units may be through some interfaces, and the indirect coupling or communication bonding may be electrical, mechanical, or other forms.

[0091] The units described above as separate components may or may not be physically separate. 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 the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0092] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A color filter substrate, characterized in that, include: Transparent substrate and multiple spacers; A conductive layer is formed on the light-transmitting substrate. The conductive layer includes a plurality of conductive portions. A spacer is disposed between adjacent conductive portions to isolate adjacent conductive portions. Each conductive portion has at least one via. A color resist liquid layer includes multiple color resist liquid portions, with one color resist liquid portion corresponding to each of the conductive portions. The spacer is disposed between adjacent color resist liquid portions to isolate adjacent color resist liquid portions. The color resist liquid layer includes an charged color resist liquid layer or a magnetic color resist liquid layer. The color filter substrate further includes an insulating layer and a control line layer. The insulating layer is disposed between the conductive layer and the light-transmitting substrate, and the insulating layer has at least one opening at each of the conductive portions. The control line layer includes a plurality of control line sections, and each conductive section is provided with a corresponding control line section. The control line section is electrically connected to the corresponding conductive section through a corresponding opening on the insulating layer. By controlling the corresponding conductive part to be conductive or non-conductive through the control line, the display brightness of different display sub-regions of the display screen can be adjusted in zones. The control line layer is disposed between the light-transmitting substrate and the insulating layer, and the conductive layer is made of a transparent conductive material.

2. The color filter substrate according to claim 1, characterized in that, The color filter substrate further includes a transparent solution layer, which includes a plurality of transparent solution portions. Each of the color resist liquid portions has a corresponding transparent solution portion formed thereon. The spacer is disposed between adjacent transparent solution portions to isolate adjacent transparent solution portions. The transparent solution in the transparent solution layer is immiscible with the color resist liquid in the color resist liquid layer, and the density of the transparent solution is less than the density of the color resist liquid.

3. The color filter substrate according to claim 1, characterized in that, The color filter substrate also includes a glass cover plate, which is disposed on the color resist liquid layer.

4. A display panel, characterized in that, include: The color filter substrate according to any one of claims 1-3; Array substrate; A liquid crystal layer is encapsulated between the color filter substrate and the array substrate.

5. A display device, characterized in that, Includes the display panel as described in claim 4.

6. A method for controlling the brightness of a display panel in a zonal manner, characterized in that, Based on the display panel according to claim 4, the display panel includes a plurality of display sub-regions, each display sub-region corresponding to a conductive part, and the control method includes: Based on the display information and brightness information of each display sub-region, a first instruction or a second instruction is generated to adjust the display brightness of each of the display sub-regions; In response to the first instruction, the control line portion of the control line layer is controlled to input a conductive voltage to the conductive portion corresponding to the corresponding display sub-region, or in response to the second instruction, the control line portion is controlled not to input a conductive voltage to the conductive portion corresponding to the corresponding display sub-region. The method further includes: The control line is controlled to deliver different voltages to the conductive part to control the white light transmittance of the corresponding display sub-region, thereby adjusting the display brightness of each display sub-region to different degrees.

Images