Color film substrate, display module and display terminal

Abstract

The utility model provides a color film substrate, a display module and a display terminal.The color film substrate comprises a glass substrate, a protective layer and a color filter layer located between the glass substrate and the protective layer, and the color filter layer comprises a plurality of color units which are symmetrically arranged; each color unit comprises a first color area, a second color area, a third color area, a first antireflection film, a second antireflection film and a third antireflection film, the first color area, the second color area and the third color area are sequentially arranged, and the first antireflection film, the second antireflection film and the third antireflection film are thickened in a stepped mode. According to the color film substrate, the reflectivity of light with the same color as the corresponding color area in a backlight source is reduced, the light transmittance of the backlight source is increased, the two color units of the color film unit of the color film substrate are symmetrically arranged, the first anti-reflection film, the second anti-reflection film and the third anti-reflection film are thickened in a stepped mode, and the manufacturing process is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of display technology, specifically relating to a color filter substrate, a display module, and a display terminal. Background Technology

[0002] Compared to traditional cathode ray tube (CRT) displays, LCDs (Liquid Crystal Displays) offer advantages such as high display quality, no electromagnetic radiation, small size, and low power consumption. With technological advancements and cost reductions, LCDs have gradually become the mainstream display device. Currently, LCDs are widely used in both stationary and portable display devices. In recent years, portable display devices (such as mobile phones and tablets) have become a consumer hotspot.

[0003] Traditional color filter substrates typically consist of a glass substrate, a color filter layer, and a protective layer. The color filter layer generally comprises red, green, and blue filter units, used to decompose the white light emitted from the backlight into the three primary colors, thereby achieving color display. However, existing traditional color filter substrates suffer from complex manufacturing processes, low backlight utilization, and significant energy waste. Utility Model Content

[0004] The purpose of this utility model is to provide a color filter substrate, a display module, and a display terminal. The color filter substrate can simplify the manufacturing process, improve the light transmittance, thereby improving the utilization rate of backlight and reducing energy waste.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: The first aspect of this utility model provides a color filter substrate, including a glass substrate and a protective layer, and a color filter layer located between the glass substrate and the protective layer. The color filter layer includes a plurality of color filter units, and each color filter unit includes two color units symmetrically arranged.

[0006] The color unit includes a first color region, a second color region, and a third color region arranged sequentially, and a first antireflective film, a second antireflective film, and a third antireflective film stacked corresponding to the first color region, the second color region, and the third color region, respectively. The first antireflective film, the second antireflective film, and the third antireflective film are thickened in a stepped manner. The first antireflective film, the second antireflective film, and the third antireflective film are used to reduce the reflectivity of light with the same color as the corresponding color region in the backlight.

[0007] In one embodiment, the first color region is a green region, the second color region is a blue region, and the third color region is a red region. The first color region is located in the middle of the color filter unit, and the third color region is located at the edge of the color filter unit.

[0008] In one embodiment, the first color region is a green region, the second color region is a blue region, and the third color region is a red region. The first color region is located at the edge of the color filter unit, and the third color region is located at the center of the edge of the color filter unit.

[0009] In one embodiment, the first antireflection film, the second antireflection film, and the third antireflection film are located on the light-incident surface side of the corresponding color, or the first antireflection film, the second antireflection film, and the third antireflection film are located on the light-outcrystal surface side of the corresponding color.

[0010] In one embodiment, a black matrix is ​​provided between adjacent color regions.

[0011] In one embodiment, the cross-section of the black matrix is ​​in the shape of an inverted trapezoid in the direction of the protective layer toward the glass substrate.

[0012] In one embodiment, the inverted trapezoidal black matrix includes an upper bottom surface and two side surfaces located on both sides of the upper bottom surface, and the inner walls of the upper bottom surface and the two side surfaces are provided with a reflective film layer.

[0013] A second aspect of this utility model provides a display module, including a backlight and a liquid crystal layer, and a color filter substrate located between the backlight and the liquid crystal layer, wherein the color filter substrate is the color filter substrate as described above.

[0014] In one embodiment, the system further includes filter color blocks, which include a first color block, a second color block, and a third color block corresponding to the first color region, the second color region, and the third color region, respectively, and a black matrix is ​​provided between adjacent color blocks.

[0015] The third aspect of this utility model provides a display terminal, which includes the display module described above.

[0016] The color filter substrate provided by this utility model includes a glass substrate, a protective layer, and a color filter layer located between the glass substrate and the protective layer. The color filter layer includes a plurality of symmetrically arranged color units. Each color unit includes a first color region, a second color region, and a third color region arranged sequentially, and a first anti-reflection film, a second anti-reflection film, and a third anti-reflection film respectively stacked corresponding to the first color region, the second color region, and the third color region. The first anti-reflection film, the second anti-reflection film, and the third anti-reflection film are thickened in a stepped manner. The first anti-reflection film, the second anti-reflection film, and the third anti-reflection film are used to reduce the reflectivity of light with the same color as the corresponding color region in the backlight. In this color filter unit, each color unit has a corresponding anti-reflection film in its first color region, the second color region, and the third color region, which reduces the reflectivity of light with the same color as the corresponding color region in the backlight and increases the transmittance of the backlight. In this color filter substrate, the two color units are symmetrically arranged, and the first anti-reflection film, the second anti-reflection film, and the third anti-reflection film are thickened in a stepped manner, which facilitates the manufacturing process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional structural diagram of the display module provided in an embodiment of the present utility model;

[0019] Figure 2 A schematic cross-sectional view of the first antireflective film, the second antireflective film, and the third antireflective film in the color filter unit provided in this embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the outer contour structure of the black matrix of the display module provided in an embodiment of the present invention.

[0021] The following are the labeling elements in the figure:

[0022] 1-Glass substrate; 2-Protective layer; 3-Color filter unit; 4-Black matrix; 5-Backlight; 6-Liquid crystal layer; 31-First color area; 32-Second color area; 33-Third color area; 311-First antireflective coating; 321-Second antireflective coating; 331-Third antireflective coating. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In the description of this utility model, it should be understood that the terms "comprising" and "having" as used herein, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. It should be understood that the term "and / or" as used herein is merely a description of the relationship between related objects, indicating that three relationships may exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0027] The color filter substrate, display module, and display terminal provided by this utility model will be described in detail below with reference to specific embodiments.

[0028] Figure 1 This is a cross-sectional structural diagram of the display module provided in an embodiment of the present utility model. Figure 2 For a cross-sectional structural diagram of the first antireflective film, the second antireflective film, and the third antireflective film in the color filter unit provided in this embodiment of the present invention, please refer to... Figure 1 , Figure 2, in the first aspect of this embodiment, a color film substrate is provided, which is applied to a display module. The color film substrate includes a glass substrate 1, a protective layer 2, and a color filter layer located between the glass substrate 1 and the protective layer 2. The color filter layer includes a plurality of color film units 3. Each color film unit 3 includes two symmetrically arranged color units. Each color unit includes a first color region 31, a second color region 32, and a third color region 33 arranged in sequence, and a first anti-reflection film 311, a second anti-reflection film 321, and a third anti-reflection film 331 corresponding to the first color region 31, the second color region 32, and the third color region 33 respectively. The first anti-reflection film 311, the second anti-reflection film 321, and the third anti-reflection film 331 are thickened in a stepped manner.

[0029] Specifically, the color film substrate of this embodiment includes a glass substrate 1 and a protective layer 2. A color filter layer is provided between the glass substrate 1 and the protective layer 2. The color filter layer includes a plurality of color film units 3. The glass substrate 1 can be made of ordinary soda-lime glass or alkali-free glass, and its thickness is generally 0.5 mm to 1.1 mm. The protective layer 2 can be made of a transparent resin material, such as polyester, polycarbonate, polymethyl methacrylate, etc., and its thickness is generally 0.1 mm to 0.5 mm. Each color film unit 3 includes two symmetrically arranged color units, and the two color units are symmetrically arranged with respect to the center line of the color film unit 3. Each color unit includes a first color region 31, a second color region 32, and a third color region 33 arranged in sequence. In this embodiment, the first color region 31 is located in the middle of the color film unit 3, the second color region 32 is located between the first color region 31 and the third color region 33, and the third color region 33 is located at the edge of the color film unit 3.

[0030] The first color region 31, the second color region 32, and the third color region 33 of this embodiment correspond to different colors. The first color region 31 of this embodiment is a green region, the second color region 32 is a blue region, and the third color region 33 is a red region. The color film substrate further includes a first anti-reflection film 311, a second anti-reflection film 321, and a third anti-reflection film 331 corresponding to the first color region 31, the second color region 32, and the third color region 33 respectively. The first anti-reflection film 311, the second anti-reflection film 321, and the third anti-reflection film 331 are thickened in a stepped manner, that is, the thickness of the first anti-reflection film 311 is less than the thickness of the second anti-reflection film 321, and the thickness of the second anti-reflection film 321 is less than the thickness of the third anti-reflection film 331. Specifically, the thickness of the first anti-reflection film 311 is h1, the thickness of the second anti-reflection film 321 is h2, and the thickness of the third anti-reflection film 331 is h3, where h1 < h2 < h3. Exemplarily, the range of h1 is 50 nm to 100 nm, the range of h2 is 100 nm to 150 nm, and the range of h3 is 150 nm to 200 nm.

[0031] The antireflective coating can be made of transparent dielectric materials such as silicon dioxide, titanium dioxide, and aluminum oxide, with a refractive index between that of the glass substrate 1 and each color region. In this embodiment, the first antireflective coating 311, the second antireflective coating 321, and the third antireflective coating 331 are made of the same material. The function of the antireflective coating is to reduce the reflectivity of backlight light passing through the color filter substrate, thereby increasing the light transmittance. The antireflective coating can be located on the light-incident surface of the color region and / or on the light-emitting surface of the color region. In this embodiment, the antireflective coating is located on the light-incident surface of the color region, that is, between the protective layer and each color region.

[0032] The fabrication process of the color filter substrate in this embodiment is as follows: a first antireflective coating is deposited on a glass substrate; a second antireflective coating is then deposited on top of the first antireflective coating; a third antireflective coating is then deposited on top of the second antireflective coating; a first color region 31 is deposited at a position corresponding to the first antireflective coating 311; a second color region 32 is deposited on the second antireflective coating 321; and a third color region 33 is deposited on the third antireflective coating 331. The thicknesses of the first antireflective coating 311, the second antireflective coating 321, and the third antireflective coating 331, as well as the thicknesses of the first color region 31, the second color region 32, and the third color region 33, can be preset in advance based on the refractive index of the antireflective coating and the types of the first color region 31, the second color region 32, and the third color region 33.

[0033] In this embodiment, each color filter unit has two symmetrically arranged color units. Each color unit includes a first color region 31, a second color region 32, and a third color region 33 arranged sequentially, and a first antireflective coating 311, a second antireflective coating 321, and a third antireflective coating 331 arranged in a stepped manner, respectively superimposed on the first color region 31, the second color region 32, and the third color region 33. Since the first antireflective coating 311, the second antireflective coating 321, and the third antireflective coating 331 of each color filter unit are arranged in a stepped manner, and the first antireflective coating 311, the second antireflective coating 321, and the third antireflective coating 331 are fabricated by a deposition process, the fabrication process of the photomask is simplified during the fabrication of the second antireflective coating 321 and the third antireflective coating 331. In this embodiment, the two first color regions 31 are connected together, and the two third color regions 33 are connected together, which simplifies the fabrication process of the photomask during the fabrication of the first color regions 31 and the third color regions 33.

[0034] The working principle of the color filter substrate in this embodiment is as follows: After the light emitted from the backlight passes through the glass substrate, it first passes through anti-reflection films. The first anti-reflection film 311, the second anti-reflection film 321, and the third anti-reflection film 331 reduce the reflectivity of light of the same color as the corresponding color region in the backlight, allowing more light to enter each color region. When the light passes through each color region, each color region filters the light, allowing only light of specific wavelengths to pass through. Finally, the filtered light passes through the protective layer and is emitted to form the desired colored light. Because the color filter substrate in this embodiment adds anti-reflection films to the light-incident surface of the color film, and the anti-reflection films are thickened in a stepped manner, the reflectivity of different colors of light can be effectively reduced, and the light transmittance can be increased, thereby improving the display effect.

[0035] The color filter substrate of this embodiment includes a glass substrate, a protective layer, and a color filter layer located between the glass substrate and the protective layer. The color filter layer includes a plurality of symmetrically arranged color units. Each color unit includes a first color region, a second color region, and a third color region arranged sequentially, and a first anti-reflection film, a second anti-reflection film, and a third anti-reflection film respectively stacked corresponding to the first color region, the second color region, and the third color region. The first anti-reflection film, the second anti-reflection film, and the third anti-reflection film are stepped thickened. The first anti-reflection film, the second anti-reflection film, and the third anti-reflection film are used to reduce the reflectivity of light with the same color as the corresponding color region in the backlight. In this color filter unit, each color unit has a corresponding anti-reflection film in its first color region, the second color region, and the third color region, which reduces the reflectivity of light with the same color as the corresponding color region in the backlight and increases the transmittance of the backlight. In this color filter substrate, the two color units are symmetrically arranged, and the first anti-reflection film, the second anti-reflection film, and the third anti-reflection film are stepped thickened, which facilitates the manufacturing process.

[0036] Optionally, the first color region 31 is located at the edge of the color filter unit, and the third color region 33 is located in the middle of the color filter unit. Alternatively, the first color region 31 is located in the middle of the color filter unit, and the third color region 33 is located at the edge of the color filter unit.

[0037] Specifically, in this embodiment, each color filter unit includes two symmetrically arranged color units, and each color unit includes a first color region 31, a second color region 32, and a third color region 33 arranged sequentially. The first color region 31 is located at the edge of the color filter unit, the second color region 32 is located between the first color region 31 and the third color region 33, and the third color region 33 is located in the middle of the color filter unit.

[0038] In this embodiment, the first color region 31 is a green region, the second color region 32 is a blue region, and the third color region 33 is a red region. The color filter substrate also includes a first antireflective film 311, a second antireflective film 321, and a third antireflective film 331, which correspond to the first color region 31, the second color region 32, and the third color region 33, respectively. The first antireflective film 311, the second antireflective film 321, and the third antireflective film 331 are thickened in a stepped manner.

[0039] In one specific embodiment, a black matrix 4 is provided between adjacent color areas.

[0040] Specifically, in this embodiment, each color filter unit 3 includes two symmetrically arranged color units, and each color unit includes a first color region 31, a second color region 32, and a third color region 33 arranged sequentially. A black matrix 4 is provided between adjacent color regions to isolate different color regions and prevent color confusion. For example, the black matrix 4 can be made of materials such as metallic chromium, chromium oxide, or carbon black, and its thickness is generally 0.1μm to 0.5μm, which can be adjusted according to display requirements.

[0041] In this embodiment, the color filter substrate can effectively prevent color confusion and improve the clarity of the display effect by setting a black matrix 4 between adjacent color areas.

[0042] Furthermore, the cross-section of the black matrix 4 is inverted trapezoidal in the direction of the protective layer 2 toward the glass substrate 1.

[0043] Specifically, Figure 3 This is a schematic diagram of the outer contour cross-sectional structure of the black matrix of the display module provided in this embodiment of the present invention. (See attached diagram.) Figure 1 and Figure 3 In this embodiment, the cross-section of the black matrix 4 is an inverted trapezoidal shape in the direction of the protective layer 2 toward the glass substrate 1. The inverted trapezoidal black matrix 4 includes an upper bottom surface and two side surfaces located on both sides of the upper bottom surface. The inner walls of the upper bottom surface and the two side surfaces are provided with a reflective film layer.

[0044] The width of the upper base of the inverted trapezoidal black matrix 4 is generally 10μm to 25μm, and the height is generally 0.1μm to 0.5μm. The angle between the two sides of the inverted trapezoidal black matrix 4 and the horizontal plane is generally 30° to 60°.

[0045] Preferably, the bottom surface of the inverted trapezoidal black matrix 4 and the inner walls of the two sides are provided with a reflective film layer.

[0046] Specifically, in this embodiment, a reflective film layer is provided on the top bottom surface and the inner sidewalls of the two sides of the inverted trapezoidal black matrix 4. The reflective film layer can be made of metal materials such as aluminum, silver, and chromium, and its thickness is generally 0.05μm to 0.2μm. The function of the reflective film layer is to reflect light leaking from the sides of each color area and allow it to re-enter each color area. By using an inverted trapezoidal black matrix 4, the color filter substrate of this embodiment can increase the light reflection area, improve the light utilization rate, and thus improve the display effect.

[0047] In this embodiment, the color filter substrate can further improve light utilization and thus improve the display effect by setting a reflective film layer on the top bottom surface and the inner sidewalls of the two sides of the inverted trapezoidal black matrix 4.

[0048] The second aspect of this embodiment provides a display module; please refer to [link to relevant documentation]. Figure 1 The display module includes a backlight 5, a liquid crystal layer 6, and a color filter substrate located between the backlight 5 and the liquid crystal layer 6. The color filter substrate is the color filter substrate described in the above embodiment. Specifically, the color filter substrate includes a glass substrate 1, a protective layer 2, and a color filter layer located between the glass substrate 1 and the protective layer 2. The color filter layer includes a plurality of color filter units 3, each color filter unit 3 including two symmetrically arranged color units. Each color unit includes a first color region 31, a second color region 32, and a third color region 33 arranged sequentially, and a first anti-reflection film 311, a second anti-reflection film 321, and a third anti-reflection film 331 corresponding to the first color region 31, the second color region 32, and the third color region 33, respectively. The first anti-reflection film 311, the second anti-reflection film 321, and the third anti-reflection film 331 are thickened in a stepped manner.

[0049] In this embodiment, each color filter unit 3 of the color filter substrate has a corresponding antireflection film provided in its first color region 31, second color region 32, and third color region 33. This reduces the reflectivity of light with the same color as the corresponding color region in the backlight and increases the transmittance of the backlight. The two color units of the color filter substrate are symmetrically arranged, and the first antireflection film 311, the second antireflection film 321, and the third antireflection film 331 are thickened in a stepped manner, which facilitates the manufacturing process.

[0050] For example, the backlight 5 includes components such as a light source, a light guide plate, a reflective sheet, a diffuser sheet, and a brightness enhancement film. The light source can be a cold cathode fluorescent lamp or a light-emitting diode, etc. The light guide plate is used to evenly distribute the light emitted by the light source across the entire display area. The reflective sheet is located on the back of the light guide plate and is used to reflect light leaking from the back of the light guide plate, allowing it to re-enter the light guide plate. The diffuser sheet is located above the light guide plate and is used to make the light more uniform. The brightness enhancement film is located above the diffuser sheet and is used to increase the brightness of the light.

[0051] The liquid crystal layer 6 includes liquid crystal molecules and electrodes for controlling the alignment direction of the liquid crystal molecules. The alignment direction of the liquid crystal molecules determines the polarization state of light, thereby controlling the light transmittance and realizing the display function. The color filter substrate is located between the backlight 5 and the liquid crystal layer 6, and is used to convert the white light emitted by the backlight 5 into red, green, and blue primary color light, thereby realizing color display.

[0052] The display module of this embodiment can improve light transmittance and thus improve display effect by using the color filter substrate described in the above embodiment.

[0053] Furthermore, the display module also includes color filter blocks, which include a first color block, a second color block, and a third color block corresponding to the first color region 31, the second color region 32, and the third color region 33, respectively, and a black matrix is ​​provided between adjacent color blocks.

[0054] Specifically, in this embodiment, the color filter blocks are located between the color filter substrate and the liquid crystal layer 6 to further filter out stray light and improve the purity of the display effect. The color filter blocks include a first color block, a second color block, and a third color block, respectively corresponding to the first color region 31, the second color region 32, and the third color region 33. The materials and thicknesses of the first, second, and third color blocks can be adjusted according to display requirements. A black matrix is ​​provided between adjacent color blocks to isolate different color blocks and prevent color confusion. The material and structure of the black matrix can be the same as or different from the black matrix in the color filter substrate.

[0055] The display module in this embodiment can further improve the purity of the display effect by adding filter color blocks, thereby improving the display quality.

[0056] A third aspect of this embodiment provides a display terminal, including the display module described in the above embodiment.

[0057] Specifically, a display terminal can be any electronic device with display capabilities, such as a television, computer monitor, mobile phone, or tablet computer. Besides the display module, a display terminal also includes components such as a power module, control module, and signal processing module. The power module provides electrical energy to the display terminal. The control module coordinates the operation of all components within the display terminal. The signal processing module processes the input video signal and converts it into a signal format suitable for display by the display module.

[0058] The display terminal in this embodiment can improve the display effect and thus enhance the user experience by adopting the display module described in the above embodiment.

[0059] In the above description, the terms "an embodiment," "some embodiments," "example," "specific example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A color filter substrate, characterized in that: It includes a glass substrate and a protective layer, and a color filter layer located between the glass substrate and the protective layer. The color filter layer includes multiple color filter units, and each color filter unit includes two color units arranged symmetrically. The color unit includes a first color region, a second color region, and a third color region arranged sequentially, and a first antireflective film, a second antireflective film, and a third antireflective film stacked corresponding to the first color region, the second color region, and the third color region, respectively. The first antireflective film, the second antireflective film, and the third antireflective film are thickened in a stepped manner. The first antireflective film, the second antireflective film, and the third antireflective film are used to reduce the reflectivity of light with the same color as the corresponding color region in the backlight.

2. The color filter substrate according to claim 1, characterized in that: The first color region is a green region, the second color region is a blue region, and the third color region is a red region. The first color region is located in the middle of the color filter unit, and the third color region is located at the edge of the color filter unit.

3. The color filter substrate according to claim 1, characterized in that: The first color region is a green region, the second color region is a blue region, and the third color region is a red region. The first color region is located at the edge of the color filter unit, and the third color region is located at the center of the edge of the color filter unit.

4. The color filter substrate according to any one of claims 1-3, characterized in that: The first antireflective coating, the second antireflective coating, and the third antireflective coating are located on the light-incident surface side of the corresponding color, or the first antireflective coating, the second antireflective coating, and the third antireflective coating are located on the light-outcrystal surface side of the corresponding color.

5. The color filter substrate according to claim 1, characterized in that: A black matrix is ​​set between adjacent color areas.

6. The color filter substrate according to claim 5, characterized in that: The cross-section of the black matrix is ​​in the shape of an inverted trapezoid in the direction of the protective layer toward the glass substrate.

7. The color filter substrate according to claim 6, wherein: The inverted trapezoidal black matrix includes an upper bottom surface and two side surfaces located on both sides of the upper bottom surface. The inner walls of the upper bottom surface and the two side surfaces are provided with a reflective film layer.

8. A display module, characterized by: It includes a backlight and a liquid crystal layer, and a color filter substrate located between the backlight and the liquid crystal layer, wherein the color filter substrate is the color filter substrate according to any one of claims 1-7.

9. The display module of claim 8, wherein: It also includes filter color blocks, which include a first color block, a second color block, and a third color block corresponding to the first color region, the second color region, and the third color region, respectively, and a black matrix is ​​set between adjacent color blocks.

10. A display terminal, characterized by: The display terminal includes the display module as described in claim 8 or 9.

Images