Display panel and its manufacturing method, display device

Abstract

This application belongs to the field of display technology, specifically relating to a display panel and its manufacturing method, and a display device. The display panel includes a first substrate and a second substrate disposed opposite each other. The first substrate includes a first sub-substrate and a first photoresist layer and a spacer layer sequentially formed on the first sub-substrate. The first sub-substrate is divided into pixel areas and light-shielding areas. The first photoresist layer includes a black matrix disposed in the light-shielding areas. The spacer layer includes a barrier and a main spacer pillar. The barrier is disposed at least on one side of each pixel area in the row or column direction. The orthogonal projections of the barrier and the main spacer pillar on the first sub-substrate are both located in the light-shielding areas. A receiving groove for filling dye liquid crystal is formed on the side of the barrier away from the first sub-substrate. The barrier is spaced from the second substrate. The dye liquid crystal is disposed in the receiving groove. In the ultraviolet light alignment process of the liquid crystal, the black matrix can block the light irradiating the dye liquid crystal, preventing the dye liquid crystal from decomposing under light, thereby improving the contrast of the display panel.

Description

Technical Field

[0001] This application belongs to the field of display technology, specifically relating to a display panel, its manufacturing method, and a display device. Background Technology

[0002] Liquid crystal display (LCD) panels can be mainly classified into twisted nematic (TN) liquid crystals, in-plane switching (IPS) liquid crystals, and vertical alignment (VA) liquid crystals, based on the initial orientation arrangement of liquid crystal molecules and the deflection motion mode driven by an electric field.

[0003] Polymer-stabilized vertically aligned liquid crystals (PSVA) are a type of vertically aligned liquid crystal. They achieve stable anchoring of liquid crystal molecules by adding a small amount of reactive mesoderm (RM) to the liquid crystal and then polymerizing it under ultraviolet (UV) light to form a polymer network. PSVA offers advantages such as fast response time, high contrast, and high transmittance, making it widely applicable to mid-to-high-end display applications such as large-screen TVs, gaming monitors, and automotive displays.

[0004] Adding dye-based liquid crystals to polymer-stabilized vertically aligned liquid crystals can reduce dark-state brightness, thereby improving the contrast of the display panel. However, dye-based liquid crystals are highly sensitive to ultraviolet light. During the ultraviolet alignment process of polymer-stabilized vertically aligned liquid crystals, dye-based liquid crystals are easily decomposed, leading to a decrease in the contrast of the display panel. Summary of the Invention

[0005] The purpose of this application is to provide a display panel and its manufacturing method and display device, which improves the contrast of the display panel by solving the problem of decomposition of dye liquid crystal in the ultraviolet light alignment process of polymer stable vertically aligned liquid crystal.

[0006] To achieve the above objectives, this application provides a display panel, including a first substrate and a second substrate, wherein the second substrate is disposed on one side of the first substrate, and one of the first substrate and the second substrate is an array substrate and the other is an opposing substrate. The first substrate includes:

[0007] A first substrate has a plurality of spaced pixel regions and a light-shielding region surrounding the pixel regions. A first photoresist layer is formed on the side of the first substrate near the second substrate. The first photoresist layer includes a black matrix, which is disposed in the light-shielding area. A spacer layer is formed on the side of the first substrate away from the first photoresist layer. The spacer layer includes a barrier wall and a main spacer pillar. The barrier wall is disposed on at least one side of each pixel area in the row or column direction. The orthogonal projections of the barrier wall and the main spacer pillar on the first substrate are both located in the light-shielding area. A receiving groove for filling dye liquid crystal is formed on the side of the barrier wall away from the first substrate. The main spacer pillar is in contact with the second substrate, and the barrier wall is spaced from the second substrate.

[0008] Optionally, the distance between the barrier and the second substrate is 0.1 micrometers to 0.5 micrometers.

[0009] Optionally, the first photoresist layer further includes multiple color resists of different colors, which are disposed in the pixel area.

[0010] Optionally, the second substrate includes a second substrate, a driving circuit layer, and a second photoresist layer. The driving circuit layer is formed between the second substrate and the second photoresist layer. The second photoresist layer includes multiple color resists of different colors, and the positions of the color resists correspond one-to-one with the pixel areas.

[0011] Optionally, the driving circuit layer includes a metal line, the orthographic projection of the metal line on the first substrate is located within the light-shielding area, the color resist includes a red color resist, a green color resist and a blue color resist, and the red color resist and the blue color resist are stacked on the side of the metal line near the first substrate.

[0012] Optionally, the second photoresist layer includes a shunt column, the orthographic projection of which onto the first photoresist layer is located within the receiving groove, and a portion of which is inserted into the receiving groove.

[0013] Optionally, multiple color resists are spaced apart along the row direction, the barrier is disposed between adjacent color resists in the row direction, and the main spacer is disposed between adjacent pixel areas in the column direction.

[0014] Optionally, the retaining wall is provided at least on one side of each pixel area in the row direction and on one side of each pixel area in the column direction, and the main spacer post is provided in the receiving groove.

[0015] This application also provides a method for manufacturing a display panel, including: A first substrate and a second substrate are fabricated. The first substrate includes a first substrate, a first photoresist layer, and a spacer layer. The first substrate is divided into a plurality of spaced pixel regions and a light-shielding region surrounding the pixel regions. The first photoresist layer is formed on the side of the first substrate close to the second substrate and includes a black matrix disposed in the light-shielding region. The spacer layer is formed on the side of the first photoresist layer away from the first substrate and includes a barrier wall and a main spacer pillar. The barrier wall is disposed at least on one side of each pixel region in the row or column direction. The orthographic projections of the barrier wall and the main spacer pillar on the first substrate are both located in the light-shielding region. A receiving groove is formed on the side of the barrier wall away from the first substrate, and the height of the barrier wall is less than the height of the main spacer pillar. Before or after the first substrate and the second substrate are assembled, with the first substrate at the bottom, dye liquid crystal is first poured into the receiving groove, and then light-controlling liquid crystal is poured between the first substrate and the second substrate. The light-controlling liquid crystal includes negative liquid crystal and reactive mesocrystalline. The light-controlling liquid crystal is irradiated from one side of the first substrate with ultraviolet light, causing the reactive mesocrystalline polymerization to achieve the alignment of the negative liquid crystal; The first substrate and the second substrate are flipped to mix the light-controlling liquid crystal and the dye liquid crystal.

[0016] This application also provides a display device, including: Backlight module; The display panel is located on the light-emitting side of the backlight module.

[0017] The display panel, its manufacturing method, and the display device disclosed in this application have the following beneficial effects: In this application, the display panel includes a first substrate and a second substrate disposed opposite each other. The first substrate includes a first sub-substrate, a first photoresist layer, and a spacer layer. The first sub-substrate is divided into multiple spaced-apart pixel regions and light-shielding regions surrounding the pixel regions. The first photoresist layer is formed on the side of the first sub-substrate closest to the second substrate and includes a black matrix disposed in the light-shielding region. The spacer layer is formed on the side of the first sub-substrate away from the first photoresist layer and includes a barrier wall and a main spacer pillar. The barrier wall is disposed at least on one side of each pixel region in the row or column direction. The orthogonal projections of the barrier wall and the main spacer pillar on the first sub-substrate are both located in the light-shielding region. A receiving groove for filling dye-based liquid crystal is formed on the side of the barrier wall away from the first substrate, and the barrier wall is spaced from the second substrate. The dye-based liquid crystal is disposed in the receiving groove. During the ultraviolet alignment process of the liquid crystal, the black matrix can block the light illuminating the dye-based liquid crystal, preventing the dye-based liquid crystal from decomposing under light and improving the contrast of the display panel.

[0018] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0021] Figure 1 This is a schematic diagram of the structure of the first substrate in the embodiments of this application.

[0022] Figure 2 This is a top view of the first substrate in an embodiment of this application.

[0023] Figure 3 This is a schematic diagram of the structure of the display panel in an embodiment of this application.

[0024] Figure 4 This is a top view schematic diagram of another first substrate in an embodiment of this application.

[0025] Figure 5 This is a schematic diagram of the display panel structure in Embodiment 2 of this application.

[0026] Figure 6 This is a schematic diagram of another display panel structure in Embodiment 2 of this application.

[0027] Figure 7 This is a schematic diagram of the manufacturing process of the display panel in Embodiment 3 of this application.

[0028] Figure 8 This is a schematic diagram of liquid crystal filling in Embodiment 3 of this application.

[0029] Figure 9 This is a schematic diagram of the ultraviolet light alignment process of the liquid crystal in Embodiment 3 of this application.

[0030] Figure 10 This is a schematic diagram of the display device in Embodiment 4 of this application.

[0031] Explanation of reference numerals in the attached figures: 100, First substrate; 110, First substrate substrate; 120, First photoresist layer; 121, Black matrix; 122, Color resist; 130, Spacer layer; 131, Barrier; 1311, Receiving groove; 132, Main spacer pillar; 140, First alignment layer; 200, Second substrate; 210, Second substrate; 220, Driving circuit layer; 230, Second photoresist layer; 231, Shunt column; 240, Second alignment layer; 310. Dye-based liquid crystal display (LCD); 320. Light-controlled LCD; 400. Frame adhesive; 10. Display panel; 20. Backlight module. Detailed Implementation

[0032] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0033] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0034] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.

[0035] Example 1 See Figures 1 to 3 As shown, in this embodiment, the display panel 10 includes a first substrate 100 and a second substrate 200. The second substrate 200 is disposed on one side of the first substrate 100. One of the first substrate 100 and the second substrate 200 is an array substrate and the other is a counter substrate. The first substrate 100 can be an array substrate or a counter substrate.

[0036] The first substrate 100 includes a first substrate 110, a first photoresist layer 120, and a spacer layer 130. The first substrate 110 may be a transparent substrate such as a glass substrate or a polyimide substrate. The first substrate 110 is divided into a plurality of spaced-apart pixel regions and light-shielding regions surrounding the pixel regions. The first photoresist layer 120 is formed on the side of the first substrate 110 near the second substrate 200. The first photoresist layer 120 includes a black matrix 121, which is disposed in the light-shielding regions.

[0037] A spacer layer 130 is formed on the side of the first substrate 110 away from the first photoresist layer 120. The spacer layer 130 includes a barrier wall 131 and a main spacer pillar 132. The barrier wall 131 is disposed on at least one side of each pixel area in the row or column direction. The orthogonal projections of the barrier wall 131 and the main spacer pillar 132 on the first substrate 110 are both located in the light-shielding area. A receiving groove 1311 for filling dye liquid crystal 310 is formed on the side of the barrier wall 131 away from the first substrate 110. The depth of the receiving groove 1311 can penetrate the spacer layer 130 and extend to the first photoresist layer 120. The main spacer pillar 132 is in contact with the second substrate 200, and the barrier wall 131 is spaced apart from the second substrate 200.

[0038] The display panel 10 also includes a frame adhesive 400 and a liquid crystal layer. The frame adhesive 400 is disposed around the edges of the first substrate 100 and the second substrate 200. The liquid crystal layer is disposed between the first substrate 100 and the second substrate 200 and is located in the area enclosed by the frame adhesive 400. The liquid crystal layer includes a dye liquid crystal 310 and a light-controlling liquid crystal 320.

[0039] During the fabrication of the display panel 10, a dye-based liquid crystal 310 is disposed in a receiving groove 1311, while a light-controlling liquid crystal 320 (i.e., the liquid crystal used in the polymer-stabilized vertically aligned liquid crystal display panel 10) is disposed outside the receiving groove 1311. The light-controlling liquid crystal 320 comprises reactive mesonic crystals and negative liquid crystals. Ultraviolet light is used to irradiate the light-controlling liquid crystal 320 from one side of the first substrate 100, causing the reactive mesonic crystals to polymerize and align the negative liquid crystals. During the ultraviolet alignment process of the liquid crystal, a black matrix 121 blocks the light irradiating the dye-based liquid crystal 310, preventing its decomposition under illumination. After the liquid crystal alignment is completed, the display panel 10 can be flipped, allowing the dye-based liquid crystal 310 and the light-controlling liquid crystal 320 to mix through a gap formed by the barrier 131 with the second substrate 200. This adds dye-based liquid crystal 310 to the light-controlling liquid crystal 320, reducing the dark-state brightness of the display panel 10 and improving its contrast.

[0040] Adding dye-based liquid crystal 310 to a polymer-stabilized vertically aligned liquid crystal can reduce dark-state brightness, thereby improving the contrast of the display panel 10. However, dye-based liquid crystal 310 is highly sensitive to ultraviolet light. During the ultraviolet light alignment process of the polymer-stabilized vertically aligned liquid crystal, dye-based liquid crystal 310 is easily decomposed, resulting in a decrease in the contrast of the display panel 10.

[0041] In this embodiment, the display panel 10 includes a first substrate 100 and a second substrate 200 disposed opposite each other. The first substrate 100 includes a first substrate 110, a first photoresist layer 120, and a spacer layer 130. The first substrate 110 is divided into a plurality of spaced pixel regions and light-shielding regions surrounding the pixel regions. The first photoresist layer 120 is formed on the side of the first substrate 110 near the second substrate 200. The first photoresist layer 120 includes a black matrix 121 disposed in the light-shielding region, which... A spacer layer 130 is formed on the side of the first substrate 110 away from the first photoresist layer 120. The spacer layer 130 includes a barrier 131 and a main spacer pillar 132. The barrier 131 is disposed on at least one side of each pixel area in the row or column direction. The orthogonal projections of the barrier 131 and the main spacer pillar 132 on the first substrate 110 are both located in the light-shielding area. A receiving groove 1311 for filling the dye liquid crystal 310 is formed on the side of the barrier 131 away from the first substrate 110. The barrier 131 is spaced from the second substrate 200. The dye liquid crystal 310 is disposed in the receiving groove 1311. In the ultraviolet light alignment process of the liquid crystal, the black matrix 121 can block the light irradiating the dye liquid crystal 310, preventing the dye liquid crystal 310 from decomposing under light and improving the contrast of the display panel 10.

[0042] In some embodiments, the distance between the barrier 131 and the second substrate 200 is 0.1 micrometer to 0.5 micrometer.

[0043] The distance between the barrier 131 and the second substrate 200 is 0.1 micrometer to 0.5 micrometer, such as 0.1 micrometer, 0.4 micrometer, 0.5 micrometer, etc., to ensure that the gap between the barrier 131 and the second substrate 200 is sufficient to allow the dye liquid crystal 310 and the light-controlling liquid crystal 320 to mix uniformly.

[0044] Furthermore, the spacer layer 130 includes a main spacer pillar 132 and a secondary spacer pillar, with the secondary spacer pillar being lower in height than the main spacer pillar 132. When the display panel 10 is compressed, the main spacer pillar 132 initially bears all the pressure. When the pressure reaches the threshold that the main spacer pillar 132 can withstand, the secondary spacer pillar assists the main spacer pillar 132 in bearing part of the pressure. In this embodiment, the distance between the baffle wall 131 and the second substrate 200 is 0.1 micrometers to 0.5 micrometers. The baffle wall 131 can act as a secondary spacer pillar, assisting the main spacer pillar 132 in supporting the first substrate 100 and the second substrate 200, thus maintaining the thickness of the liquid crystal cell.

[0045] In some embodiments, the first photoresist layer 120 further includes a plurality of color resists 122 of different colors, which are disposed in the pixel area. The plurality of color resists 122 of different colors include red color resist 122 (R), green color resist 122 (G), and blue color resist 122 (B). In addition, the first substrate 100 may also include a common electrode layer and a first alignment layer 140, wherein the first alignment layer 140 is formed on the side of the first photoresist layer 120 away from the first substrate 110, and the common electrode layer is formed between the first alignment layer 140 and the first photoresist layer 120.

[0046] The first photoresist layer 120 includes multiple color resists 122 of different colors, meaning that the first substrate 100 can be a color filter substrate.

[0047] It should be noted that the color resist 122 can be disposed on the first photoresist layer 120 of the first substrate 100, but is not limited thereto. The color resist 122 can also be disposed on the second substrate 200, that is, using the color filter on array (COA) technology, depending on the specific situation. The liquid crystal display panel 10 with COA structure does not have the alignment problem between the color filter substrate and the array substrate, so it can reduce the difficulty of the cell alignment process in the manufacturing process of the display panel 10 and avoid errors during cell alignment. The black matrix 121 in the COA structure can be designed with a narrow linewidth, which improves the aperture ratio.

[0048] In some embodiments, multiple color resists 122 are spaced apart along the row direction, with baffles 131 positioned between adjacent color resists 122 in the row direction, and main spacers 132 positioned between adjacent pixel areas in the column direction. For each column or row pixel area, one color resist 122 can be provided. The color resists 122 are distributed in the pixel area and the light-blocking area between the pixel areas, with the black matrix 121 blocking the portion of the color resist 122 located in the light-blocking area. It should be noted that one color resist 122 can be provided for each column pixel area, but this is not limited to this; one color resist 122 can also be provided for each pixel area, depending on the specific situation.

[0049] When a barrier wall 131 is provided between adjacent color resists 122 in the row direction, the main spacer pillar 132 is provided between adjacent pixel areas in the column direction, and the positions of the barrier wall 131 and the main spacer pillar 132 do not interfere with each other.

[0050] In some embodiments, see Figure 4 As shown, the barrier wall 131 is provided at least on one side of the row direction of each pixel area and on one side of the column direction of each pixel area, and the main spacer 132 is provided in the receiving groove 1311, specifically at the junction of four adjacent pixel areas.

[0051] The barrier 131 is provided at least on one side of the row direction of each pixel area and on one side of the column direction of each pixel area, which can ensure that the dye liquid crystal 310 and the light-controlling liquid crystal 320 can be mixed more easily and uniformly.

[0052] Example 2 The main difference between Embodiment 2 and Embodiment 1 is that the color resist 122 is disposed on the second substrate 200.

[0053] See Figure 5 As shown, the second substrate 200 includes a second substrate 210, a driving circuit layer 220, and a second photoresist layer 230. The driving circuit layer 220 is formed between the second substrate 210 and the second photoresist layer 230, and includes structures such as thin-film transistors, pixel electrodes, storage capacitors, data lines, and scan lines. The second photoresist layer 230 includes multiple color resists 122 of different colors, and the positions of the color resists 122 correspond one-to-one with the pixel areas. In addition, the second substrate 200 also includes a second alignment layer 240, which is formed on the side of the second photoresist layer 230 away from the second substrate 210.

[0054] The color filter 122 is disposed on the second substrate 200, that is, the color filter on array (COA) technology is adopted. The liquid crystal display panel 10 with COA structure does not have the alignment problem between the color filter substrate and the array substrate, so the difficulty of cell alignment process in the manufacturing process of display panel 10 can be reduced and the error during cell alignment can be avoided. The black matrix 121 in COA structure can be designed with narrow linewidth, which improves the aperture ratio.

[0055] In some embodiments, see Figure 6 As shown, the driving circuit layer 220 includes metal lines such as scan lines and data lines. The orthogonal projection of the metal lines on the first substrate 110 is located in the light-shielding area. The color resist 122 includes red color resist 122, green color resist 122 and blue color resist 122. Stacked red color resist 122 and blue color resist 122 are disposed on the side of the metal lines near the first substrate 100.

[0056] The stacked arrangement of red and blue color resists 122 provides good light-blocking effect, preventing metal lines from reflecting light onto the dye-based liquid crystal 310 and preventing the dye-based liquid crystal 310 from decomposing under light, thereby improving the contrast of the display panel 10.

[0057] It should be noted that red and blue color resist 122 can be stacked for shielding metal wires, but this is not the only option. A combination of red and green color resist 122, or a combination of blue and green color resist 122, can also be used for shielding metal wires, depending on the specific situation. Specifically, red and blue color resist 122 can be stacked for shielding metal wires, but this is not the only option. A color resist of the first color, or stacked with three colors of color resist 122, can also be used for shielding metal wires, depending on the specific situation.

[0058] In some embodiments, the second photoresist layer 230 includes a current-splitting column 231. The orthographic projection of the current-splitting column 231 on the first photoresist layer 120 is located within a receiving groove 1311, and a portion of the current-splitting column 231 is inserted into the receiving groove 1311. When color resists 122 are respectively provided on both sides of the current-splitting column 231 in the row direction, the cross-section of the current-splitting column 231 in the column direction is triangular or trapezoidal, and the tip of the triangular or trapezoidal cross-section of the current-splitting column 231 points towards the first substrate 100.

[0059] The second photoresist layer 230 includes a shunt column 231. The orthogonal projection of the shunt column 231 on the first photoresist layer 120 is located in the receiving groove 1311. After the liquid crystal alignment is completed, the display panel 10 can be flipped so that when the dye liquid crystal 310 and the light-controlling liquid crystal 320 are mixed with the second substrate 200 through the barrier 131, the shunt column 231 can make the dye liquid crystal 310 diffuse into the light-controlling liquid crystal 320 more quickly, thereby accelerating the uniform mixing of the dye liquid crystal 310 and the light-controlling liquid crystal 320.

[0060] Example 3 This embodiment provides a method for manufacturing a display panel 10, used to manufacture the display panel 10 disclosed in Embodiment 1 or Embodiment 2. See also... Figures 7 to 9 As shown, the method for manufacturing the display panel 10 includes: S100: Fabricate a first substrate 100 and a second substrate 200. The first substrate 100 includes a first substrate 110, a first photoresist layer 120, and a spacer layer 130. The first substrate 110 is divided into a plurality of pixel regions spaced apart, and a light-shielding region located around the pixel regions. The first photoresist layer 120 is formed on the side of the first substrate 110 close to the second substrate 200. The first photoresist layer 120 includes a black matrix 121, which is disposed in the light-shielding region. The spacer layer 130 is formed on the side of the first photoresist layer 120 away from the first substrate 110. The spacer layer 130 includes a barrier wall 131 and a main spacer pillar 132. The barrier wall 131 is disposed at least on one side of each pixel region in the row direction or column direction. The orthographic projections of the barrier wall 131 and the main spacer pillar 132 on the first substrate 110 are both located in the light-shielding region. A receiving groove 1311 is formed on the side of the barrier wall 131 away from the first substrate 110. The height of the barrier wall 131 is less than the height of the main spacer pillar 132. S200: Before or after the first substrate 100 and the second substrate 200 are assembled, with the first substrate 100 at the bottom, first fill the receiving groove 1311 with dye liquid crystal 310, and then fill the space between the first substrate 100 and the second substrate 200 with light-controlling liquid crystal 320, which includes negative liquid crystal and reactive mesocrystalline. S300: Ultraviolet light is used to irradiate the light-controlling liquid crystal 320 from one side of the first substrate 100, so that reactive mesocrystalline polymerization is achieved to align the negative liquid crystal. S400: Flip the first substrate 100 and the second substrate 200 to make the light-controlling liquid crystal 320 and the dye liquid crystal 310 mix evenly.

[0061] It should be noted that dye liquid crystal 310 is first poured into the receiving tank 1311, and then light-controlling liquid crystal 320 is poured between the first substrate 100 and the second substrate 200. The dye liquid crystal 310 does not need to fill the receiving tank 1311. When pouring the light-controlling liquid crystal 320, the amount of liquid crystal needs to make up for the space inside the cell thickness, and some of it will flow into the receiving tank 1311.

[0062] After assembly, with the first substrate 100 facing down, the ultraviolet light alignment process of the liquid crystal is completed within 24 hours to prevent the dye liquid crystal 310 from diffusing into the pixel area before the ultraviolet light alignment process is completed. When the first substrate 100 and the second substrate 200 are flipped to uniformly mix the light-controlling liquid crystal 320 and the dye liquid crystal 310, they can be vibrated to accelerate the mixing. After mixing, the fabrication of the display panel 10 is completed.

[0063] During the fabrication of the display panel 10, a dye-based liquid crystal 310 is disposed in a receiving tank 1311, and a light-controlling liquid crystal 320 is disposed outside the receiving tank 1311. Ultraviolet light is used to irradiate the light-controlling liquid crystal 320 from one side of the first substrate 100, enabling reactive mesocrystalline polymerization to achieve the alignment of the negative liquid crystal. In the ultraviolet alignment process of the liquid crystal, the black matrix 121 can block the light irradiating the dye-based liquid crystal 310, preventing the dye-based liquid crystal 310 from decomposing under light and improving the contrast of the display panel 10.

[0064] Example 4 See Figure 10 As shown, the display device in this embodiment includes a display panel 10 and a backlight module 20 as disclosed in Embodiment 1 or Embodiment 2, with the display panel 10 disposed on the light-emitting side of the backlight module 20.

[0065] In this embodiment, the display device includes a display panel 10. The display panel 10 includes a first substrate 100 and a second substrate 200 disposed opposite each other. The first substrate 100 includes a first substrate 110, a first photoresist layer 120, and a spacer layer 130. The first substrate 110 is divided into a plurality of spaced pixel regions and light-shielding regions located around the pixel regions. The first photoresist layer 120 is formed on the side of the first substrate 110 near the second substrate 200. The first photoresist layer 120 includes a black matrix 121. The black matrix 121 is disposed... In the light-shielding area, a spacer layer 130 is formed on the side of the first substrate 110 away from the first photoresist layer 120. The spacer layer 130 includes a barrier 131 and a main spacer pillar 132. The barrier 131 is disposed on at least one side of each pixel area in the row or column direction. The orthogonal projections of the barrier 131 and the main spacer pillar 132 on the first substrate 110 are both located in the light-shielding area. A receiving groove 1311 for filling the dye liquid crystal 310 is formed on the side of the barrier 131 away from the first substrate 110. The barrier 131 is spaced from the second substrate 200. The dye liquid crystal 310 is disposed in the receiving groove 1311. In the ultraviolet light alignment process of the liquid crystal, the black matrix 121 can block the light irradiating the dye liquid crystal 310, preventing the dye liquid crystal 310 from decomposing under light, thereby improving the contrast of the display panel 10 and the display device.

[0066] The terms "first," "second," etc., 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. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0067] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0068] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any 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.

[0069] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of this patent application.

Claims

1. A display panel, comprising a first substrate and a second substrate, the second substrate being arranged on one side of the first substrate, one of the first substrate and the second substrate being an array substrate and the other being a counter substrate, characterized in that, The first substrate includes: A first substrate is provided, wherein a plurality of pixel regions are spaced apart and a light-shielding region is located around the pixel regions. A first photoresist layer is formed on the side of the first substrate near the second substrate. The first photoresist layer includes a black matrix, which is disposed in the light-shielding area. A spacer layer is formed on the side of the first substrate away from the first photoresist layer. The spacer layer includes a barrier wall and a main spacer pillar. The barrier wall is disposed on at least one side of each pixel area in the row or column direction. The orthogonal projections of the barrier wall and the main spacer pillar on the first substrate are both located in the light-shielding area. A receiving groove for filling dye liquid crystal is formed on the side of the barrier wall away from the first substrate. The main spacer pillar is in contact with the second substrate, and the barrier wall is spaced from the second substrate.

2. The display panel of claim 1, wherein, The distance between the retaining wall and the second substrate is 0.1 micrometer to 0.5 micrometer.

3. The display panel of claim 1, wherein, The first photoresist layer also includes multiple color resists of different colors, which are disposed in the pixel area.

4. The display panel of claim 1, wherein, The second substrate includes a second substrate, a driving circuit layer, and a second photoresist layer. The driving circuit layer is formed between the second substrate and the second photoresist layer. The second photoresist layer includes multiple color resists of different colors, and the positions of the color resists correspond one-to-one with the pixel areas.

5. The display panel of claim 4, wherein, The driving circuit layer includes metal lines, the orthographic projection of the metal lines on the first substrate is located within the light-shielding area, the color resist includes red color resist, green color resist and blue color resist, and stacked red color resist and blue color resist are disposed on the side of the metal lines near the first substrate.

6. The display panel of claim 4, wherein, The second photoresist layer includes a shunt column, the orthographic projection of which onto the first photoresist layer is located within the receiving groove, and a portion of which is inserted into the receiving groove.

7. The display panel according to any one of claims 3 to 6, characterized in that, Multiple color resists are spaced apart along the row direction, the barrier is disposed between adjacent color resists in the row direction, and the main spacer is disposed between adjacent pixel areas in the column direction.

8. The display panel of claim 7, wherein, The retaining wall is provided at least on one side of the row direction of each pixel area and on one side of the column direction of each pixel area, and the main septum post is provided in the receiving groove.

9. A manufacturing method of a display panel, comprising: include: A first substrate and a second substrate are fabricated. The first substrate includes a first substrate, a first photoresist layer, and a spacer layer. The first substrate is divided into a plurality of spaced pixel regions and a light-shielding region surrounding the pixel regions. The first photoresist layer is formed on the side of the first substrate close to the second substrate and includes a black matrix disposed in the light-shielding region. The spacer layer is formed on the side of the first photoresist layer away from the first substrate and includes a barrier wall and a main spacer pillar. The barrier wall is disposed at least on one side of each pixel region in the row or column direction. The orthographic projections of the barrier wall and the main spacer pillar on the first substrate are both located in the light-shielding region. A receiving groove is formed on the side of the barrier wall away from the first substrate, and the height of the barrier wall is less than the height of the main spacer pillar. Before or after the first substrate and the second substrate are assembled, with the first substrate at the bottom, dye liquid crystal is first poured into the receiving groove, and then light-controlling liquid crystal is poured between the first substrate and the second substrate. The light-controlling liquid crystal includes negative liquid crystal and reactive mesocrystalline. The light-controlling liquid crystal is irradiated from one side of the first substrate with ultraviolet light, causing the reactive mesocrystalline polymerization to achieve the alignment of the negative liquid crystal; The first substrate and the second substrate are flipped to mix the light-controlling liquid crystal and the dye liquid crystal.

10. A display device, characterized by comprising: include: Backlight module; The display panel as described in any one of claims 1 to 8 is disposed on the light-emitting side of the backlight module.

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