Display panel, preparation method of color film substrate, and display device

Abstract

The application discloses a display panel, a preparation method of a color film substrate and a display device, and relates to the technical field of display. The display panel comprises a first substrate and a second substrate arranged oppositely, the second substrate comprises a second substrate body and a plurality of pixel units, the plurality of pixel units are arranged at intervals on the second substrate body, the display panel further comprises a spacer structure arranged between the first substrate and the second substrate, wherein the spacer structure comprises a plurality of first spacer walls and a plurality of second spacer walls, the plurality of first spacer walls are arranged between adjacent pixel units along a scanning line direction, the plurality of second spacer walls are arranged between adjacent pixel units along a data line direction, the plurality of first spacer walls and the plurality of second spacer walls are arranged in a cross manner to form a grid-shaped spacer structure. Through the above design, the application improves the non-uniformity of the box thickness caused by the inclination of the spacer and improves the display quality.

Description

Technical Field

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

[0002] With the development of thin-film transistor liquid crystal display (TFT-LCD) technology, TFT-LCD screens have become widely used in people's lives and work due to their low cost, high reliability, and good display effect. The liquid crystal cell of a TFT-LCD is formed by bonding an array substrate and a color filter substrate together with adhesive, and then injecting liquid crystal into the cell. Generally, TFT-LCD panels have pillar-shaped spacers (PS pillars) on the color filter substrate to support the array substrate and the color filter substrate, maintain the cell thickness, and provide surface pressure resistance.

[0003] As people's demands for display quality increase, TFT-LCD panels are easily subjected to external forces during shipping and handling or during back-end LCM processing and production. This causes deformation of the glass substrate, which in turn causes the columnar spacers on the color filter glass substrate at the stress point to move and become misaligned due to tilting. This is because the support area of ​​the columnar spacers (PS columns) on the array substrate is limited. If they exceed the stress point, they will cut other film layers in the array substrate, causing light leakage or dead pixels. If the columnar spacers themselves are damaged or cannot return to their original positions, it will lead to uneven thickness of the liquid crystal cell, resulting in uneven brightness around the surface and causing mura problems when subjected to external forces. Summary of the Invention

[0004] The purpose of this application is to provide a method for preparing a display panel and a color filter substrate, as well as a display device, which improves the display quality by reducing uneven cell thickness caused by the tilt of the spacer.

[0005] This application discloses a display panel, including a first substrate and a second substrate disposed opposite to each other. The second substrate includes a second substrate body and a plurality of pixel units, which are spaced apart on the second substrate body. The display panel also includes a spacer structure disposed between the first substrate and the second substrate. The spacer structure includes a plurality of first spacer walls and a plurality of second spacer walls. The plurality of first spacer walls are disposed between adjacent pixel units along the scan line direction, and the plurality of second spacer walls are disposed between adjacent pixel units along the data line direction. The plurality of first spacer walls and the plurality of second spacer walls are intersected to form a grid-like spacer structure. A portion of the first spacer wall is higher than the other portions, forming a first main spacer wall, and a portion of the second spacer wall is higher than the other portions, forming a second main spacer wall.

[0006] Optionally, the pixel unit includes red sub-pixels, green sub-pixels, and blue sub-pixels spaced apart. The first partition wall is disposed between adjacent red sub-pixels, blue sub-pixels, and green sub-pixels along the scan line direction, and the second partition wall is disposed between adjacent red sub-pixels, blue sub-pixels, and green sub-pixels along the data line direction.

[0007] Optionally, the display panel further includes a plurality of first black matrices and a plurality of second black matrices. The plurality of first black matrices are disposed between adjacent red sub-pixels, green sub-pixels and blue sub-pixels along the scan line direction. The plurality of second black matrices are disposed between adjacent adjacent red sub-pixels, green sub-pixels and blue sub-pixels along the data line direction. The plurality of first partition walls are disposed in a one-to-one correspondence with the plurality of first black matrices. The plurality of second partition walls are disposed in a one-to-one correspondence with the plurality of second black matrices.

[0008] Optionally, the first substrate is an array substrate, the second substrate is a color filter substrate, the spacer structure is fixed on the color filter substrate, and the first spacer wall and the second spacer wall are provided with multiple notches on the side near the color filter substrate, and the multiple notches are respectively provided for the red sub-pixel, the green sub-pixel and the blue sub-pixel.

[0009] Optionally, the first substrate is an array substrate, the second substrate is a color filter substrate, the spacer structure is fixed on the color filter substrate, and the first spacer wall and the second spacer wall are provided with multiple notches on the side near the array substrate, and the multiple notches are respectively provided for the red sub-pixel, the green sub-pixel and the blue sub-pixel.

[0010] Optionally, let the height of the auxiliary support wall be H1 and the height of the notch be H2, where H1 / 3≦H2≦H1 / 2.

[0011] Optionally, the first main partition wall and the second main partition wall are provided with multiple top structures on the side away from the color filter substrate, and the multiple top structures are provided for red sub-pixels, green sub-pixels and blue sub-pixels; wherein, the top structures are arc-shaped.

[0012] Optionally, the first partition wall and the second partition wall are arranged to intersect to form an intersection, and the height of the intersection is greater than the height of other positions of the first partition wall and the second partition wall.

[0013] Optionally, the spacer structure further includes a first reinforcement structure and a second reinforcement structure. The first reinforcement structure is disposed on the side of the first spacer wall and the second spacer wall near the color filter substrate, and the first spacer wall and the second spacer wall are fixedly connected to the color filter substrate through the first reinforcement structure. The second reinforcement structure is disposed on the side of the first spacer wall and the second spacer wall near the array substrate.

[0014] This application also discloses a method for preparing a color filter substrate for use in the display panel described above, comprising the following steps:

[0015] A filler material is deposited on a color filter substrate, and then etched to form a grid-shaped filler layer.

[0016] A septum material is deposited above the filler layer to form a grid-shaped septum structure;

[0017] The filler layer is removed using a filler etching solution or a dissolving solution, so that a gap is formed in the spacer structure on the side close to the color filter substrate;

[0018] The spacer structure includes a plurality of first spacer walls and a plurality of second spacer walls. The plurality of first spacer walls are disposed between adjacent pixel units along the scan line direction, and the plurality of second spacer walls are disposed between adjacent pixel units along the data line direction. The plurality of first spacer walls and the plurality of second spacer walls are intersected.

[0019] One part of the first partition wall is higher than the other parts, forming the first main partition wall; one part of the second partition wall is higher than the other parts, forming the second main partition wall.

[0020] This application also discloses a display device, including a backlight module and a display panel as described above, wherein the backlight module is disposed opposite to the display panel and the backlight module provides a backlight source for the display panel.

[0021] Compared to existing technologies that use columnar spacers to support the array substrate and color filter substrate, the spacer structure of this application includes multiple first spacer walls and multiple second spacer walls. The multiple first spacer walls are disposed between adjacent pixel units along the scan line direction, and the multiple second spacer walls are disposed between adjacent pixel units along the data line direction. The multiple first spacer walls and multiple second spacer walls are intersected to form a grid-like spacer structure. Furthermore, a portion of the first spacer wall is higher than the other portions, forming a first main spacer wall, and a portion of the second spacer wall... The height of the partition wall is higher than that of the other parts, forming a second main partition wall, while the other parts are auxiliary partition walls. In this way, when the display panel is subjected to external force, the grid-like partition structure can transmit the external force to the surrounding first and second partition walls, reducing the effect of the external force. Moreover, the grid-like partition structure is not easy to misalign after being subjected to external force. Even if some partition walls are misaligned, they can be easily restored to their original position under the action of other connected partition walls. This improves the problem of uneven cell thickness caused by the tilt of the partition wall and enhances the display quality. Attached Figure Description

[0022] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, 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 creative effort. In the drawings:

[0023] Figure 1 This is a block diagram of the display device provided in the first embodiment of this application;

[0024] Figure 2 This is a schematic cross-sectional view of the display panel provided in the first embodiment of this application;

[0025] Figure 3 This is a bottom view of the display panel provided in the first embodiment of this application;

[0026] Figure 4 yes Figure 3 A magnified schematic diagram of a portion of region A in the middle;

[0027] Figure 5 for Figure 4 A schematic diagram of the three-dimensional structure;

[0028] Figure 6 This is a structural schematic diagram of the auxiliary partition wall provided in the first embodiment of this application;

[0029] Figure 7This is a schematic diagram of the structure of the first main spacer or the second main spacer provided in the first embodiment of this application;

[0030] Figure 8 This is a schematic flowchart of the method for preparing the color filter substrate provided in the first embodiment of this application;

[0031] Figure 9 This is provided in the second embodiment of the present application. Figure 3 A schematic diagram of the three-dimensional structure of region A in the middle;

[0032] Figure 10 This is a schematic flowchart of the method for preparing a color filter substrate according to the second embodiment of this application;

[0033] Figure 11 This is a bottom view of the display panel provided in the third embodiment of this application;

[0034] Figure 12 yes Figure 11 A magnified schematic diagram of a portion of region B in the middle;

[0035] Figure 13 This is a structural schematic diagram of the first or second main spacer provided in the fourth embodiment of this application;

[0036] Figure 14 This is a schematic flowchart of the method for preparing a color filter substrate according to the fourth embodiment of this application;

[0037] Figure 15 This is provided in the fifth embodiment of this application. Figure 3 A schematic diagram of the three-dimensional structure of region A in the middle.

[0038] Wherein, 10 is a display device; 100 is a display panel; 110 is a first substrate; 120 is a second substrate; 121 is a second substrate body; 130 is a pixel unit; 131 is a red sub-pixel; 132 is a green sub-pixel; 133 is a blue sub-pixel; 140 is a liquid crystal molecule; 200 is a spacer structure; 210 is a first spacer wall; 220 is a second spacer wall; 230 is a first main spacer wall; and 240 is a second main spacer. Wall; 250, Auxiliary partition wall; 260, Roof structure; 261, First partition wall; 262, Second partition wall; 263, Third partition wall; 264, Fourth partition wall; 270, Abutment part; 280, First reinforcing structure; 290, Second reinforcing structure; 300, First black matrix; 400, Second black matrix; 500, Notch; 600, Top structure; 700, Intersection; 800, Backlight module. Detailed Implementation

[0039] It should be understood that the terminology, specific structural and functional details used herein are merely for describing particular embodiments and are representative. However, this application may be implemented in many alternative forms and should not be construed as being limited to the embodiments set forth herein.

[0040] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of technical features indicated. Therefore, unless otherwise stated, a feature specified as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. Furthermore, terms indicating orientation or positional relationships, such as "upper," "lower," "left," "right," "vertical," and "horizontal," are described based on the orientation or relative positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description of this application, not indicating that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments.

[0042] First embodiment:

[0043] Figure 1 This is a block diagram of the display device provided in the first embodiment of this application, as shown below. Figure 1 As shown, this application discloses a display device 10, including a backlight module 800 and a display panel 100. The backlight module 800 is disposed opposite to the display panel 100, and the backlight module 800 provides a backlight source for the display panel 100.

[0044] Specifically, Figure 2 This is a schematic cross-sectional view of the display panel provided in the first embodiment of this application. Figure 3 This is a bottom view structural diagram of the display panel provided in the first embodiment of this application; combined with Figures 2-3It is understood that the display panel 100 includes a first substrate 110 and a second substrate 120 disposed opposite to each other. The second substrate 120 includes a second substrate body 121 and a plurality of pixel units 130, which are spaced apart on the second substrate body 121. The display panel 100 also includes a spacer structure 200 disposed between the first substrate 110 and the second substrate 120. The spacer structure 200 includes a plurality of first spacer walls 210 and a plurality of second spacer walls 220. The first partition wall 210 is disposed between adjacent pixel units 130 along the scan line direction, and a plurality of second partition walls 220 are disposed between adjacent pixel units 130 along the data line direction. The plurality of first partition walls 210 and the plurality of second partition walls 220 are intersected to form a grid-like partition structure 200. A portion of the first partition wall 210 is higher than the other portions to form a first main partition wall 230, and a portion of the second partition wall 220 is higher than the other portions to form a second main partition wall 240.

[0045] Compared to existing technologies that use columnar spacers to support the array substrate and color filter substrate, the spacer structure 200 of this application includes multiple first spacer walls 210 and multiple second spacer walls 220. The multiple first spacer walls 210 are disposed between adjacent pixel units 130 along the scan line direction, and the multiple second spacer walls 220 are disposed between adjacent pixel units 130 along the data line direction. The multiple first spacer walls 210 and multiple second spacer walls 220 are intersected to form a grid-like spacer structure 200. Furthermore, a portion of the first spacer wall 210 is higher than the other portions, forming a first main spacer wall 230. The second spacer walls 210... One part of the 20 is higher than the others, forming a second main partition wall 240, while the others are auxiliary partition walls 250. In this way, when the display panel 100 is subjected to external force, the grid-like partition structure 200 can transmit the external force to the surrounding first partition walls 210 and second partition walls 220, reducing the effect of the external force. Moreover, the grid-like partition structure 200 is not easy to misalign after being subjected to external force. Even if some partition walls are misaligned, they can be easily restored to their original position under the action of other connected partition walls, thereby improving the problem of uneven cell thickness caused by the tilt of the partition and improving the display quality.

[0046] in, Figure 4 yes Figure 3 A magnified schematic diagram of a portion of region A in the middle. Figure 5 for Figure 4 A three-dimensional structural diagram, combined with Figure 2 and Figures 4-5It is understood that the pixel unit 130 includes red sub-pixels 131, green sub-pixels 132, and blue sub-pixels 133 spaced apart. The first partition wall 210 is disposed along the scan line direction between adjacent red sub-pixels 131, green sub-pixels 132, and blue sub-pixels 133. The second partition wall 220 is disposed along the data line direction between adjacent red sub-pixels 131, green sub-pixels 132, and blue sub-pixels 133. That is, the first partition wall 210 and the second partition wall 220 are disposed around each sub-pixel, forming a roof-shaped structure 260 around each sub-pixel. This results in higher stability of the partition structure 200 within the entire display panel 100. The partition structure 200 is made of resin material, possessing a certain degree of elasticity. While providing support within the display panel 100, it prevents scratching of the opposite substrate after pressure.

[0047] The display panel 100 also includes liquid crystal molecules 140, which are filled between the first substrate 110 and the second substrate 120. Under the action of an electric field, the alignment direction of the liquid crystal molecules 140 changes, thereby changing the light transmittance of the light source to complete the electro-optical conversion. Then, by utilizing the different excitations of the red, green, and blue primary color signals, and passing through the red, green, and blue primary color filter films, color reproduction in the temporal and spatial domains is completed, achieving the display effect. Therefore, the spacer of the formed roof structure 260 also contains liquid crystal molecules 140.

[0048] like Figure 2 As shown, the display panel 100 further includes a plurality of first black matrices 300 and a plurality of second black matrices 400. The plurality of first black matrices 300 are disposed along the scan line direction between adjacent red sub-pixels 131, green sub-pixels 132 and blue sub-pixels 133. The second black matrices 400 are disposed along the data line direction between adjacent red sub-pixels 131, green sub-pixels 132 and blue sub-pixels 133. A plurality of first partition walls 210 are disposed one-to-one with the plurality of first black matrices 300, and a plurality of second partition walls 220 are disposed one-to-one with the plurality of second black matrices 400.

[0049] By setting a black matrix, light mixing is avoided by blocking light between sub-pixels of different colors. Figure 3 As shown, the widths of the first partition wall 210 and the second partition wall 220 are smaller than the widths of the first black matrix 300 and the second black matrix 400. If the widths of the first partition wall 210 and the second partition wall 220 are made to exceed the black matrix area, the aperture ratio of the liquid crystal display screen will decrease, and the light transmittance will also decrease.

[0050] in, Figure 6 This is a structural schematic diagram of the auxiliary partition wall provided in the first embodiment of this application. Figure 7 This is a schematic diagram of the structure of the first main spacer or the second main spacer provided in the first embodiment of this application. The first substrate 110 is an array substrate, and the second substrate 120 is a color filter substrate. The spacer structure 200 is fixed on the color filter substrate. Both the first spacer wall 210 and the second spacer wall 220 have multiple notches 500 on the side closest to the color filter substrate. These multiple notches 500 correspond to the red sub-pixel 131, the green sub-pixel 132, and the blue sub-pixel 133, respectively. Specifically, the spacers of each roof-shaped structure 260 have the notches 500 on the auxiliary spacer wall 250, the first main spacer wall 230, and the second main spacer wall 240. The following explanation uses one of the spacers of a roof-shaped structure 260 as an example:

[0051] like Figure 5 As shown, the spacer structure 200 of the roof structure 260 includes a first spacer wall 261, a second spacer wall 262, a third spacer wall 263, and a fourth spacer wall 264. The first spacer wall 261 and the third spacer wall 263 are arranged opposite to each other, and the second spacer wall 262 and the fourth spacer wall 264 are arranged opposite to each other. The first spacer wall 261 and the third spacer wall 263 are part of the first spacer wall 210 and can be auxiliary spacer walls 250. The second spacer wall 262 and the fourth spacer wall 264 are part of the second spacer wall 220. The second spacer wall 262 can be an auxiliary spacer wall 250. A primary partition wall 230 and a fourth partition wall 264, which can be a second primary partition wall 240, are provided with notches 500 on the side of the four partition walls closest to the color filter substrate. Liquid crystal molecules 140 between the array substrate and the color filter substrate can enter and exit through these notches 500. Moreover, the height of the auxiliary partition wall 250 is shorter than that of the first primary partition wall 230 and the second primary partition wall 240. There is a gap between the auxiliary partition wall 250 and the array substrate. Therefore, the notches 500 and the gaps cooperate to make it easier for liquid crystal molecules 140 to enter and exit, and the fluidity of liquid crystal molecules 140 is better, thereby ensuring the uniformity of the distribution of liquid crystal molecules 140 in the entire display panel 100 and ensuring the display effect.

[0052] The auxiliary spacer wall 250 and the main spacer wall of the next spacer structure 260 can be arranged in the opposite direction to the spacer of the aforementioned spacer structure 260, so that the spacer structure 200 formed in a row or column can balance the liquid crystal molecules 140.

[0053] Of course, it is also possible for the first partition wall 261 and the second partition wall 262 to be auxiliary partition walls 250, the third partition wall 263 to be the first main partition wall, and the fourth partition wall 264 to be the second main partition wall 240. When this design is adopted, the positions of the main and auxiliary partition walls of the partitions of the next connected roof structure 260 can be reversed.

[0054] Combination Figures 5-7 Let the height of the first septum wall 210 or the second septum wall 220 be H1, and the height of the notch 500 be H2, where H1 / 3 ≤ H2 ≤ H1 / 2. That is, regardless of whether the septum wall is a main septum wall or an auxiliary septum wall 250, the relationship between the height of the notch 500 and the height of the corresponding septum wall is always H1 / 3 ≤ H2 ≤ H1 / 2. In this way, while ensuring that liquid crystal molecules 140 can enter and exit, the stability of the entire septum structure 200 is also guaranteed.

[0055] Furthermore, the sidewall of the notch 500 is arc-shaped, and the size of the notch 500 gradually decreases away from the color filter substrate. In conjunction with the black matrix above, it reduces the light mixing between sub-pixels. Let the width of the largest opening of the notch 500 be a, and the width of the first septum wall 210 or the second septum wall 220 be b, where b / 3≦a≦b / 2.

[0056] The first main partition wall 230 and the second main partition wall 240 have multiple top structures 600 on the side away from the color filter substrate. These multiple top structures 600 correspond to the red sub-pixel 131, the green sub-pixel 132, and the blue sub-pixel 133, respectively. Each top structure 600 is arc-shaped. Since the first main partition wall 230 and the second main partition wall 240 need to abut against the array substrate to provide support between the array substrate and the color filter substrate, making the abutting ends of the first main partition wall 230 and the second main partition wall 240 arc-shaped structures results in a relatively small abutting area on the upper surface of the array substrate. This means that even if the ends of the arc-shaped structures slide under pressure when subjected to external force, it is less likely to damage the upper surface of the array substrate. Furthermore, the subsequent restoration and reset speed is relatively fast.

[0057] Figure 8 This is a schematic diagram of the fabrication process of the color filter substrate according to the first embodiment of this application, as shown below. Figure 8 As shown in the embodiments, this application also discloses a method for preparing a color filter substrate, including the following steps:

[0058] S1: Deposit filler material on the color filter substrate and etch to form a grid-shaped filler layer;

[0059] S2: Deposit septum material over the filler layer to form a grid-shaped septum structure 200;

[0060] S3: Remove the filler layer using a filler etching solution or a dissolving solution, so that the spacer structure forms multiple gaps on the side close to the color filter substrate;

[0061] The spacer structure 200 includes a plurality of first spacer walls 210 and a plurality of second spacer walls 220. The plurality of first spacer walls 210 are disposed between adjacent pixel units 130 along the scan line direction, and the plurality of second spacer walls 220 are disposed between adjacent pixel units 130 along the data line direction. The plurality of first spacer walls 210 and the plurality of second spacer walls 220 are intersected.

[0062] A portion of the first partition wall 210 is higher than the other portions, forming a first main partition wall 230. A portion of the second partition wall 220 is higher than the other portions, forming a second main partition wall 240.

[0063] The top structure 600 can also be formed by etching the first main partition wall 230 and the second main partition wall 240 with an etching solution.

[0064] In addition, other film structures such as common electrodes and active switches are also present on the color filter substrate. Since these film structures are not the focus of this invention, they will not be described in detail here. The spacer structure 200 can also be deposited on the array substrate.

[0065] Second embodiment:

[0066] Figure 9 This is provided in the second embodiment of the present application. Figure 3 A schematic diagram of the three-dimensional structure of region A in the middle, as shown below. Figure 9 As shown, as a second embodiment of this application, this embodiment differs from the first embodiment in that the first partition wall 210 and the second partition wall 220 are provided with a plurality of notches 500 on the side near the array substrate, and the plurality of notches 500 are respectively provided for the red sub-pixel 131, the blue sub-pixel 133 and the green sub-pixel 132.

[0067] Both the auxiliary spacer wall 250 and the main spacer wall have notches 500 on the side closest to the array substrate. The auxiliary spacer wall 250 itself has a gap with the array substrate, and with the addition of the notches 500, the gap between them is increased, which facilitates the entry and exit of liquid crystal molecules 140. Moreover, the end of the main spacer wall that abuts against the array substrate is divided into two abutting parts 270 by the notches 500, which reduces the abutting area between the main spacer wall and the array substrate. This also reduces damage to the array substrate when the main spacer wall slides.

[0068] Figure 10 This is a schematic flowchart of the fabrication method of the color filter substrate provided in the second embodiment of this application, as shown below. Figure 10 As shown, the method for preparing the color filter substrate in this embodiment includes the following steps:

[0069] S1: Deposit a semi-permeable film material on the color filter substrate and form a grid-shaped spacer structure by exposure and development;

[0070] S2: Using a semi-permeable membrane etching solution, a notch is formed on the side of the spacer structure away from the substrate.

[0071] The spacer structure 200 includes a plurality of first spacer walls 210 and a plurality of second spacer walls 220. The plurality of first spacer walls 210 are disposed between adjacent pixel units 130 along the scan line direction, and the plurality of second spacer walls 220 are disposed between adjacent pixel units 130 along the data line direction. The plurality of first spacer walls 210 and the plurality of second spacer walls 220 are intersected.

[0072] A portion of the first partition wall 210 is higher than the other portions, forming a first main partition wall 230. A portion of the second partition wall 220 is higher than the other portions, forming a first auxiliary partition wall 250.

[0073] In order to further reduce frictional damage, the two abutting parts 270 of the main partition wall can also be etched into an arc-shaped structure using etching solution. In this way, the two abutting parts 270 can make the support more stable, while the friction during sliding can be relatively reduced.

[0074] Third embodiment:

[0075] Figure 11 This is a bottom view of the display panel structure provided in the third embodiment of this application. Figure 12 yes Figure 11 A magnified schematic diagram of a portion of region B, combined with... Figures 11-12As a third embodiment of this application, this embodiment differs from the first and second embodiments in that the first spacer wall 210 and the second spacer wall 220 are intersected to form an intersection 700. The height of the intersection 700 is greater than the height of other positions of the first spacer wall 210 and the second spacer wall 220. That is, the intersection 700 is the first main spacer wall 230 and the second main spacer wall 240. In this case, in the spacer structure 200 corresponding to a sub-pixel, the four corners form main spacer walls for support, while the other four sides can form lower auxiliary spacer walls 250 for the entry and exit of liquid crystal molecules 140.

[0076] Fourth embodiment:

[0077] Figure 13 This is a structural schematic diagram of the first or second main spacer provided in the fourth embodiment of this application, as shown below. Figure 13 As shown, to further reinforce the spacer structure 200, as a fourth embodiment of this application, this embodiment differs from the first embodiment in that the spacer structure 200 further includes a first reinforcing structure 280 and a second reinforcing structure 290. The first reinforcing structure 280 is disposed on the side of the first spacer wall 210 and the second spacer wall 220 near the color filter substrate, and the first spacer wall 210 and the second spacer wall 220 are fixedly connected to the color filter substrate through the first reinforcing structure 280. The second reinforcing structure 290 is disposed on the side of the first spacer wall 210 and the second spacer wall 220 near the array substrate, and the first spacer wall 210 and the second spacer wall 220 are fixedly connected to the top structure 600 through the second reinforcing structure 290. Both the first reinforcing structure 280 and the second reinforcing structure 290 are made of a reinforced mixed resin material.

[0078] Since the notch 500 is located on the side of the spacer structure 200 close to the color filter substrate, each roof structure 260 is only partially fixed to the color filter substrate, resulting in poor fixing effect. Therefore, the first reinforcing structure 280 made of reinforced mixed resin can reinforce and fix the spacer structure 200 to the color filter substrate; while the second fixing structure 290 is close to the array substrate, increasing the support strength and making it less prone to breakage.

[0079] The second reinforcing structure 290 corresponds to the height of the first main partition wall 230 and the second main partition wall 240, and is 1 / 4 to 1 / 3 of the height of the first main partition wall 230 and the second main partition wall 240. The second reinforcing structure corresponds to the height of the auxiliary partition wall 250, and is 1 / 4 to 1 / 3 of the height of the auxiliary partition wall 250, ensuring the bonding strength with the top structure 600 and avoiding the risk of the top structure 600 falling off. The height of the first reinforcing structure 280 is 1 / 4 to 1 / 3 of the height of the second reinforcing structure 290. While increasing the bonding effect between the partition structure 200 and the color filter substrate, it also cooperates with the notch to allow the liquid crystal molecules 140 to freely enter and exit.

[0080] Figure 14 This is a schematic flowchart of the fabrication method of the color filter substrate provided in the fourth embodiment of this application, as shown below. Figure 14 As shown in the embodiments, this application also discloses a method for preparing a color filter substrate, including the following steps:

[0081] S1: A first reinforcement structure is formed by depositing a reinforcing hybrid resin material on a color filter substrate and etching it to form a grid shape;

[0082] S2: Deposit filler material on the first reinforced structure and etch to form a grid-shaped filler layer;

[0083] S3: Deposit septum material over the filler layer and etch to form a grid-shaped septum structure;

[0084] S4: Deposit a reinforcing hybrid resin material on top of the septum structure and etch it to form a second reinforcing structure in a grid shape;

[0085] S5: The filler layer is removed using a filler etching solution or a dissolving solution, so that the spacer structure forms multiple gaps on the side close to the color filter substrate.

[0086] Fifth embodiment:

[0087] Figure 15 This is provided in the fifth embodiment of this application. Figure 3 A schematic diagram of the three-dimensional structure of region A in the middle, as shown below. Figure 15As shown, as the fifth embodiment of this application, this embodiment differs from the fourth embodiment in that the notch 500 is provided on the side of the spacer structure 200 near the array substrate, and the side of the spacer structure 200 near the array substrate does not have a top structure 600. The height of the first reinforcing structure 280 can be set to 1 / 4 to 1 / 3 of the height of the first main spacer wall 230 and the second main spacer wall 240 to ensure the bonding strength between the spacer structure 200 and the color filter substrate. The height of the second reinforcing structure 290 can be set to 1 / 4 to 1 / 3 of the height of the first reinforcing structure to ensure that liquid crystal molecules can freely enter and exit.

[0088] The thickness of the cell between normal display panels 100 is fixed. When the first reinforcing structure 280 and the second reinforcing structure 290 are provided, the height of the entire spacer structure 200 needs to be reduced to match the height of the first reinforcing structure 280 and the second reinforcing structure 290. Therefore, the height of the spacer structure 200 and the height of the first reinforcing structure 280 and the second reinforcing structure 290 can also be designed according to actual production needs, and are not limited here.

[0089] It should be noted that the limitations on each step involved in this solution are not considered as limiting the order of steps, provided that they do not affect the implementation of the specific solution. The steps listed first can be executed first, later, or even simultaneously. As long as this solution can be implemented, it should be considered to fall within the scope of protection of this application.

[0090] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.

[0091] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A display panel, comprising a first substrate and a second substrate disposed opposite to each other, the second substrate comprising a second substrate body and a plurality of pixel units, the plurality of pixel units being disposed at intervals on the second substrate body, characterized in that, The display panel further includes a spacer structure disposed between the first substrate and the second substrate, wherein... The septum structure includes a plurality of first septum walls and a plurality of second septum walls. The plurality of first septum walls are arranged between adjacent pixel units along the scan line direction, and the plurality of second septum walls are arranged between adjacent pixel units along the data line direction. The plurality of first septum walls and the plurality of second septum walls are arranged intersectingly to form a grid-like septum structure. One part of the first partition wall is higher than the other parts, forming the first main partition wall; one part of the second partition wall is higher than the other parts, forming the second main partition wall. The pixel unit includes red sub-pixels, green sub-pixels and blue sub-pixels arranged at intervals. The first partition wall is arranged between adjacent red sub-pixels, green sub-pixels and blue sub-pixels along the scan line direction. The second partition wall is arranged between adjacent red sub-pixels, blue sub-pixels and green sub-pixels along the data line direction. The other parts of the first partition wall and the other parts of the second partition wall are auxiliary partition walls; corresponding to the sub-pixel, the auxiliary partition walls of the first partition wall, the auxiliary partition walls of the second partition wall, the first main partition wall, and the second main partition wall are arranged to form a roof structure; the auxiliary partition walls, the first main partition wall, and the second main partition wall of another roof structure that are spaced apart can be arranged in reverse.

2. The display panel according to claim 1, characterized in that, The display panel further includes a plurality of first black matrices and a plurality of second black matrices. The plurality of first black matrices are arranged along the scan line direction between adjacent red sub-pixels, green sub-pixels and blue sub-pixels. The plurality of second black matrices are arranged along the data line direction between adjacent red sub-pixels, green sub-pixels and blue sub-pixels. The plurality of first partition walls are arranged in a one-to-one correspondence with the plurality of first black matrices. The plurality of second partition walls are arranged in a one-to-one correspondence with the plurality of second black matrices.

3. The display panel according to claim 2, characterized in that, The first substrate is an array substrate, the second substrate is a color filter substrate, the spacer structure is fixed on the color filter substrate, and the first spacer wall and the second spacer wall are provided with multiple notches on the side near the color filter substrate, and the multiple notches are respectively provided for the red sub-pixel, the green sub-pixel and the blue sub-pixel.

4. The display panel according to claim 2, characterized in that, The first substrate is an array substrate, the second substrate is a color filter substrate, the spacer structure is fixed on the color filter substrate, and the first spacer wall and the second spacer wall are provided with multiple notches on the side near the array substrate, and the multiple notches are respectively provided for the red sub-pixel, the green sub-pixel and the blue sub-pixel.

5. The display panel according to claim 3 or 4, characterized in that, it is provided with The height of the first or second partition wall is H1, and the height of the gap is H2, wherein H1 / 3 ≦ H2 ≦ H1 / 2.

6. The display panel according to claim 5, characterized in that, The sidewall of the notch is arc-shaped, and the size of the notch gradually decreases away from the color filter substrate. Let the width of the largest opening of the notch be a, and the width of the first septum wall or the second septum wall be b, where b / 3≦a≦b / 2.

7. The display panel according to claim 3, characterized in that, The first main partition wall and the second main partition wall have multiple top structures on the side away from the color filter substrate, and the multiple top structures are arranged corresponding to the red sub-pixel, the green sub-pixel and the blue sub-pixel; wherein, the top structure is arc-shaped.

8. The display panel according to claim 1, characterized in that, The first diaphragm wall and the second diaphragm wall are arranged to intersect to form an intersection, and the height of the intersection is greater than the height of the first diaphragm wall and the second diaphragm wall at other locations.

9. The display panel according to claim 3 or 4, characterized in that, The spacer structure further includes a first reinforcement structure and a second reinforcement structure. The first reinforcement structure is disposed on the side of the first spacer wall and the second spacer wall near the color filter substrate, and the first spacer wall and the second spacer wall are fixedly connected to the color filter substrate through the first reinforcement structure. The second reinforcement structure is disposed on the side of the first spacer wall and the second spacer wall near the array substrate.

10. A method for preparing a color filter substrate, used in a display panel according to any one of claims 1-9, characterized in that, Including the following steps: A filler material is deposited on a color filter substrate, and then etched to form a grid-shaped filler layer. A septum material is deposited above the filler layer to form a grid-shaped septum structure; The filler layer is removed using a filler etching solution or a dissolving solution, resulting in multiple gaps in the spacer structure on the side near the color filter substrate. The spacer structure includes a plurality of first spacer walls and a plurality of second spacer walls. The plurality of first spacer walls are disposed between adjacent pixel units along the scan line direction, and the plurality of second spacer walls are disposed between adjacent pixel units along the data line direction. The plurality of first spacer walls and the plurality of second spacer walls are intersected. One part of the first partition wall is higher than the other parts, forming the first main partition wall; one part of the second partition wall is higher than the other parts, forming the second main partition wall.

11. A display device, comprising a backlight module and a display panel as claimed in any one of claims 1-9, characterized in that, The backlight module is disposed opposite to the display panel, and the backlight module provides a backlight source for the display panel.

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