Display substrate, display panel and display device

Abstract

The present invention discloses a display substrate, a display panel and a display device, wherein the display substrate comprises: a base substrate and a color resist layer arranged on the base substrate, wherein the color resist layer comprises a plurality of color resist portions arranged side by side and at intervals in a first direction, wherein the color resist portions are extended in a second direction, and are mutually perpendicular in the first direction, the second direction and the thickness direction of the base substrate; wherein the color resist portions have a plurality of spaced openings in the second direction, and the spaced openings are through in the first direction; or, the width of the orthographic projection of the color resist portion on the base substrate in the first direction gradually decreases from one end to the other end of the color resist portion in the second direction. Such an arrangement ensures that the developer quickly flows out, avoids the developer accumulating on one side of the color resist portion to cause over-display, and thus overcomes the problem of uneven chamfering on both sides of the color resist portion.

Description

Technical Field

[0001] The present invention generally relates to the field of display technology, and in particular to a display substrate, a display panel and a display device. Background Art

[0002] The liquid crystal panel is made by filling liquid crystal between the array substrate and the color filter substrate, and then assembling the array substrate and the color filter substrate and cutting them. The color filter substrate includes various film layers, and the production of most of the film layers involves processes such as photoresist coating, pre-baking, exposure, development, and post-baking. The development process refers to the contact between the substrate and the developer so that a chemical reaction occurs between the photoresist and the developer coated on the surface of the substrate, thereby forming a pattern on the substrate. When the color filter substrate enters the development process, the developer is evenly sprayed on the color filter substrate by spraying, and the developer will flow down from the color filter substrate.

[0003] In the layout of the entire panel, the arrangement of the color resist in the color film substrate corresponds to the arrangement of the pixels. When the side-by-side direction of different color resists is perpendicular to the flow direction of the developer, the developer is likely to accumulate on one side of the color resist, causing over-display, resulting in uneven chamfers on both sides of the color resist, which can easily cause the film layer above the over-display area to rupture due to stress concentration, and easily produce risks such as the release of harmful gases in the over-display area. Summary of the invention

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide a display substrate, a display panel and a display device.

[0005] In a first aspect, an embodiment of the present invention provides a display substrate, comprising: a base substrate and a color resist layer disposed on the base substrate, the color resist layer comprising a plurality of color resist portions arranged side by side and spaced apart in a first direction, the color resist portions extending in a second direction and having a plurality of spaced apart openings in the second direction, the spaced apart openings being through in the first direction;

[0006] The first direction, the second direction, and the thickness direction of the base substrate are perpendicular to each other.

[0007] In some examples, the orthographic projection of the color resist portion on the base substrate is in the shape of a long strip.

[0008] In some examples, the orthographic projection of the color resist portion on the base substrate is in the shape of a zigzag line, and the orthographic projection of the color resist portion on the base substrate includes a plurality of first bending portions and second bending portions that are alternately arranged and have opposite protrusion directions, and the orthographic projection of the spacing opening on the base substrate falls on at least one of the first bending portion and the second bending portion.

[0009] In some examples, a width of an orthographic projection of at least some of the color resist portions in the plurality of color resist portions on the base substrate in the first direction gradually decreases from one end to the other end of the color resist portion in the second direction.

[0010] In some examples, the orthographic projection of the color resist portion on the base substrate is in a trapezoidal shape.

[0011] In some examples, the spaced openings on the color resist portions are arranged in a one-to-one correspondence in the first direction.

[0012] In some examples, the orthographic projection of the spacing opening on the substrate is rectangular, trapezoidal, arc-shaped, or wavy.

[0013] In a second aspect, an embodiment of the present invention provides a display substrate, comprising: a base substrate and a color resist layer disposed on the base substrate, the color resist layer comprising a plurality of color resist portions arranged side by side and spaced apart in a first direction, the color resist portions extending in a second direction, and the first direction, the second direction, and a thickness direction of the base substrate being perpendicular to each other;

[0014] The width of the orthographic projection of the color resist portion on the base substrate in the first direction gradually decreases from one end to the other end of the color resist portion in the second direction;

[0015] In the first direction, the tapering direction of the width of the orthographic projection of the i-th color resist portion on the base substrate is opposite to the tapering direction of the width of the orthographic projection of the i+1-th color resist portion on the base substrate, and i is a natural number greater than or equal to 1.

[0016] In some examples, the orthographic projection of the color resist portion on the base substrate is in a trapezoidal shape.

[0017] In a third aspect, an embodiment of the present invention provides a display panel, comprising the display substrate as described above.

[0018] In a fourth aspect, an embodiment of the present invention provides a display device, comprising the display panel as described above.

[0019] The technical solution provided by the embodiments of the present invention may have the following beneficial effects:

[0020] In the display substrate, display panel and display device provided by the embodiments of the present invention, the color resist portion has a plurality of spaced openings in its extension direction, or the width of the color resist portion gradually decreases from one end to the other end in its extension direction, thereby ensuring that the developer flows out quickly and avoiding the developer from accumulating on one side of the color resist portion and causing over-display, thereby overcoming the problem of uneven chamfers on both sides of the color resist portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0022] Figure 1 It is a schematic diagram of the structure of a display substrate in the prior art;

[0023] Figure 2 It is a schematic diagram of the principle of removing the developing solution from the display substrate in the prior art;

[0024] Figure 3 A schematic structural diagram of a display substrate provided in a first embodiment of the present invention;

[0025] Figure 4 A schematic structural diagram of a display substrate provided in a second embodiment of the present invention;

[0026] Figure 5 A schematic structural diagram of a color resist portion provided in a second embodiment of the present invention;

[0027] Figure 6 Another schematic structural diagram of a display substrate provided in accordance with the second embodiment of the present invention;

[0028] Figure 7 A schematic structural diagram of a display substrate provided in a third embodiment of the present invention;

[0029] Figure 8 A schematic structural diagram of a display substrate provided in a fourth embodiment of the present invention. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] like Figure 1 and Figure 2 As shown, in the prior art, the display substrate is placed at an inclined angle in the developing section, for example, the inclined angle is 5°. Figure 1 The upper side of the display substrate is raised relative to the lower side, and after the developer is sprayed, the developer flows from top to bottom.

[0033] The display substrate has a first substrate 10, and the first substrate 10 has a plurality of sub-pixels distributed in an array, such as red sub-pixels R, green sub-pixels G, and blue sub-pixels B. For example, sub-pixels of different colors are arranged side by side in a direction M. The display substrate also includes a color resist layer, and the color resist layer includes a plurality of red color resists 11, a plurality of green color resists 12, and a plurality of blue color resists 13. The color resists of different colors are also arranged side by side in a direction M. In order to simplify the arrangement process of the color resist layer in the prior art, each color resist is extended in a direction N. Specifically, a red color resist covers a plurality of red sub-pixels R, a green color resist covers a plurality of green sub-pixels G, and a blue color resist covers a plurality of blue sub-pixels B. Figure 1 , direction M is the up and down direction, direction N is the left and right direction; refer to Figure 2 When the developer 14 flows, it is easy to accumulate on one side of each color resist, causing over-development.

[0034] Accordingly, in order to avoid overdevelopment caused by accumulation of developer, the present invention provides the following display substrate.

[0035] like Figure 3 As shown, the first embodiment of the present invention provides a display substrate, including: a base substrate and a color resist layer arranged on the base substrate, the color resist layer including a plurality of color resist portions 2 arranged side by side and spaced apart in a first direction, the color resist portions 2 extending in a second direction and having a plurality of spaced openings 3 in the second direction, the spaced openings 3 passing through in the first direction; the first direction, the second direction and the thickness direction of the base substrate are perpendicular to each other.

[0036] Specifically, the base substrate has multiple sub-pixels, such as a red sub-pixel R, a green sub-pixel G and a blue sub-pixel B; a black matrix 4 is provided on one side of the base substrate, the black matrix 4 defines multiple sub-pixel openings, and the color resist layer is located on the side of the black matrix 4 away from the base substrate and fills the sub-pixel openings.

[0037] In this embodiment, the multiple color resistance portions 2 include a red color resistance portion 21 for filtering red light, a green color resistance portion 22 corresponding to filtering green light, and a blue color resistance portion 23 for filtering blue light. The red color resistance portion 21, the green color resistance portion 22, and the blue color resistance portion 23 respectively have multiple spaced openings 3 that pass through in the first direction in the second direction.

[0038] It should be noted that the spacing opening can separate the color resist portion where it is located into multiple sections, and the orthographic projection of the spacing opening on the base substrate is located between two adjacent sub-pixels in the second direction.

[0039] When the display substrate enters the developing section and one end of the display substrate in the first direction is lifted up and tilted, the spacing opening 3 helps the developer to flow out quickly, thereby preventing the developer from accumulating and causing over-development.

[0040] In some exemplary embodiments, the display substrate may be a color film substrate.

[0041] In some exemplary embodiments, the display substrate may also be an array substrate, and the display substrate has a COA structure, which refers to a structure in which the structure of a color filter substrate is integrated on an array substrate, and its English expression is Color Filter on Array, or COA for short. Specifically, in an array substrate with a COA structure, a black matrix and a color resist layer are disposed on the array substrate.

[0042] Furthermore, the orthographic projection of the color resist portion 2 on the base substrate is in the shape of a long strip. This arrangement allows the sub-pixels on the display substrate to maintain an array distribution, effectively reducing the complexity of the structure and the manufacturing cost while increasing the outflow speed of the developer.

[0043] Furthermore, the orthographic projection of the spacing opening 3 on the substrate is rectangular, trapezoidal, arc-shaped or wavy, which is beneficial to draining the developer and improving the outflow speed of the developer.

[0044] In some exemplary embodiments, the spaced openings 3 on each color resist portion 2 are arranged one by one in the first direction. Compared with staggering the spaced openings on different color resist portions 2, the spaced openings 3 on each color resist portion 2 are arranged one by one in the first direction, which can further increase the outflow speed of the developer.

[0045] like Figure 4 and Figure 5 As shown, a second embodiment of the present invention provides a display substrate.

[0046] The difference from the display substrate provided in the first embodiment is that in the display substrate provided in this embodiment, the orthographic projection of the color resist portion 2 on the base substrate is in the shape of a zigzag line, the orthographic projection of the color resist portion 2 on the base substrate includes a plurality of first bending portions 5 and second bending portions 6 which are alternately arranged and have opposite protrusion directions, and the orthographic projection of the spacing opening 3 on the base substrate falls on at least one of the first bending portion 5 and the second bending portion 6.

[0047] Specifically, the color blocking portion 2 is divided into multiple sections by the spacing openings 3, and each section is inclined relative to the first direction and the second direction. Figure 5 Taking the red color resist portion 21 as an example, the red color resist portion 21 is divided into multiple sections by the spacing openings 3, each section is inclined relative to the first direction and the second direction, and the orthographic projection of the red color resist portion 21 on the substrate is a sawtooth broken line.

[0048] Assuming that the upper side of the display substrate in the first direction is raised relative to the lower side, the first bending portion 5 is a confluence portion, and the orthographic projection of the spacing opening 3 on the base substrate can be set to fall on the first bending portion 5 .

[0049] In addition, if the lower side of the display substrate in the first direction is raised relative to the upper side, the second bending portion 6 is a confluence portion, and the orthographic projection of the spacing opening 3 on the base substrate can be set to fall on the second bending portion 6 .

[0050] Of course, it is also possible to preferably have the orthographic projection of the spacing opening 3 on the base substrate fall on the first bending portion 5 and the second bending portion 6, so that one side of the display substrate can be raised arbitrarily in the first direction. Figure 4 and Figure 5 The orthographic projection of the spacing opening 3 on the substrate falls on the first bending portion 5 and the second bending portion 6 .

[0051] In this embodiment, since the segments of the color resist portion 2 separated by the separation openings 3 are arranged in an inclined manner, the sub-pixels covered by the corresponding color resist portion 2 are also arranged in an inclined manner. Figure 2 The red color resist portion 21 is partitioned into four sections by the partition openings 3 , and each section covers a red sub-pixel R.

[0052] Of course, it can also be designed that each segment covers two red sub-pixels R or three red sub-pixels R, etc. Figure 6 As shown, the red color resist portion 21 is partitioned into four sections by the partition openings 3 , and each section covers two red sub-pixels R.

[0053] Regarding other specific structures of the display substrate in this embodiment, reference may be made to the relevant structures of the display substrate in the first embodiment, which will not be described in detail here.

[0054] like Figure 7 As shown, the third embodiment of the present invention provides a display substrate.

[0055] The difference from the display substrate provided in the first embodiment is that in the display substrate provided in this embodiment, the width of the orthographic projection of at least part of the color resist portions 2 among the multiple color resist portions on the base substrate in the first direction gradually decreases from one end to the other end of the color resist portion 2 in the second direction.

[0056] On the basis that the color resist portion 2 has the spacing openings 3, such an arrangement can further drain the developer in the second direction, accelerate the discharge of the developer, and avoid overdevelopment caused by accumulation of the developer.

[0057] Further, in the first direction, the tapering direction of the width of the orthographic projection of the i-th color resist portion 2 on the base substrate is opposite to the tapering direction of the width of the orthographic projection of the i+1-th color resist portion 2 on the base substrate, and i is a natural number greater than or equal to 1. Specifically, the two edges of the color resist portion 2 in the first direction are respectively inclined relative to the second direction.

[0058] Reference Figure 7, the five color resistance portions 2 of the display substrate in the first direction are respectively a red color resistance portion 21, a blue color resistance portion 22, a green color resistance portion 23, a red color resistance portion 21 and a blue color resistance portion 22 from top to bottom;

[0059] The widths of the orthographic projections of the first color resist portion 2, the third color resist portion 2, and the fifth color resist portion 2 on the substrate in the first direction gradually decrease from left to right in the second direction; the widths of the orthographic projections of the second color resist portion 2 and the fourth color resist portion 2 on the substrate in the first direction gradually decrease from right to left in the second direction.

[0060] Furthermore, the orthographic projection of the color resist portion 2 on the base substrate is in a trapezoidal shape. This arrangement facilitates the formation of the color resist portion 2; and in this embodiment, the sub-pixels can be kept in an array distribution, which effectively reduces the complexity of the structure and the preparation cost while increasing the outflow speed of the developer.

[0061] like Figure 8 As shown, a fourth embodiment of the present invention provides a display substrate, comprising: a base substrate and a color resist layer arranged on the base substrate, the color resist layer comprising a plurality of color resist portions 2 arranged side by side and spaced apart in a first direction, the color resist portions 2 extending in a second direction, and the first direction, the second direction and the thickness direction of the base substrate being perpendicular to each other;

[0062] The width of the orthographic projection of the color resist portion 2 on the base substrate in the first direction gradually decreases from one end to the other end of the color resist portion 2 in the second direction;

[0063] In the first direction, the shrinking direction of the width of the orthographic projection of the i-th color resist portion 2 on the base substrate is opposite to the shrinking direction of the width of the orthographic projection of the i+1-th color resist portion 2 on the base substrate, where i is a natural number greater than or equal to 1.

[0064] Compared with the first embodiment and the third embodiment, the color resist portion in this embodiment is not provided with a spacing opening, and the width of the color resist portion in the first direction gradually decreases from one end to the other end of the color resist portion in the second direction. Specifically, the two edges of the color resist portion 2 in the first direction are respectively inclined relative to the second direction. Such a setting can play a role in draining the developer in the second direction, accelerate the discharge of the developer, and avoid overdevelopment caused by accumulation of the developer.

[0065] Furthermore, the orthographic projection of the color resist portion 2 on the base substrate is in a trapezoidal shape. This arrangement facilitates the formation of the color resist portion 2; and in this embodiment, the sub-pixels can be kept in an array distribution, which effectively reduces the complexity of the structure and the preparation cost while increasing the outflow speed of the developer.

[0066] It should be noted that, in any of the above embodiments of the present invention, when understanding the orthographic projection of the color resist portion 2 on the base substrate, the gap formed by the orthographic projection of the spacing opening 3 thereon on the base substrate is ignored.

[0067] Based on the same inventive concept, an embodiment of the present invention further provides a display substrate, comprising the above display substrate, and further comprising an opposing substrate placed opposite to the display substrate.

[0068] When the display substrate is a color filter substrate, the opposing substrate may correspondingly be an array substrate;

[0069] When the display substrate is an array substrate, the opposite substrate may correspondingly be a cover glass.

[0070] Based on the same inventive concept, an embodiment of the present invention further provides a display device, including the above display substrate. The specific type of the display device is not particularly limited, and any type of display device commonly used in the art can be used, such as mobile devices such as mobile phones, wearable devices such as watches, VR devices, etc. Those skilled in the art can make corresponding choices according to the specific purpose of the display device, which will not be repeated here.

[0071] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0072] The present invention uses first, second, etc. to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.

[0073] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can also be the internal connection of two components, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] The above description is only a preferred embodiment of the present invention and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present invention is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present invention (but not limited to) to form a technical solution.

Claims

1. A display substrate, characterized in that: include: A base substrate and a color resist layer disposed on the base substrate, wherein the color resist layer comprises a plurality of color resist portions arranged side by side and spaced apart in a first direction, the color resist portions are extended in a second direction and have a plurality of spaced apart openings in the second direction, and the spaced apart openings are connected in the first direction; The first direction, the second direction and the thickness direction of the substrate are perpendicular to each other; The base substrate has a plurality of sub-pixels distributed in an array, sub-pixels of different colors are arranged side by side in a first direction, sub-pixels of the same color are located in the same second direction, and each color resist portion covers a plurality of sub-pixels in the second direction; The display substrate is configured such that when entering the developing section, any end of the display substrate in a first direction is lifted up to be in an inclined state; The orthographic projection of the color resist portion on the base substrate is in a sawtooth fold line shape, and the orthographic projection of the color resist portion on the base substrate includes a plurality of first bending portions and second bending portions which are alternately arranged and have opposite protrusion directions, and the orthographic projection of the spacing opening on the base substrate falls on the first bending portions and the second bending portions; The color resist portion is divided into multiple sections by the spacing openings, and each section of the color resist portion is inclined relative to the first direction and the second direction.

2. The display substrate according to claim 1, characterized in that: The spaced openings on each of the color resist portions are arranged in a one-to-one correspondence in the first direction.

3. The display substrate according to claim 1, characterized in that: The orthographic projection of the spacing opening on the base substrate is rectangular, trapezoidal, arc-shaped or wavy.

4. A display substrate, characterized in that: include: A base substrate and a color resist layer disposed on the base substrate, wherein the color resist layer comprises a plurality of color resist portions arranged side by side and spaced apart in a first direction, the color resist portions are extended in a second direction and have a plurality of spaced apart openings in the second direction, and the spaced apart openings are connected in the first direction; The first direction, the second direction and the thickness direction of the substrate are perpendicular to each other; The base substrate has a plurality of sub-pixels distributed in an array, sub-pixels of different colors are arranged side by side in a first direction, sub-pixels of the same color are located in the same second direction, and each color resist portion covers a plurality of sub-pixels in the second direction; The display substrate is configured such that when entering the developing section, one end of the display substrate in a first direction is lifted up to be in an inclined state; The width of at least some of the color resist portions among the plurality of color resist portions, which are orthographically projected on the base substrate in the first direction, gradually decreases from one end to the other end of the color resist portion in the second direction; The orthographic projection of the color resist portion on the base substrate is in a trapezoidal shape.

5. The display substrate according to claim 4, characterized in that: The spaced openings on each of the color resist portions are arranged in a one-to-one correspondence in the first direction.

6. The display substrate according to claim 4, characterized in that: The orthographic projection of the spacing opening on the base substrate is rectangular, trapezoidal, arc-shaped or wavy.

7. A display substrate, characterized in that: include: A base substrate and a color resist layer disposed on the base substrate, wherein the color resist layer comprises a plurality of color resist portions arranged side by side and spaced apart in a first direction, the color resist portions extending in a second direction, and the first direction, the second direction and a thickness direction of the base substrate being perpendicular to each other; The width of the orthographic projection of the color resist portion on the base substrate in the first direction gradually decreases from one end to the other end of the color resist portion in the second direction; In the first direction, the tapering direction of the width of the orthographic projection of the i-th color resist portion on the base substrate is opposite to the tapering direction of the width of the orthographic projection of the i+1-th color resist portion on the base substrate, where i is a natural number greater than or equal to 1; The base substrate has a plurality of sub-pixels distributed in an array, sub-pixels of different colors are arranged side by side in a first direction, sub-pixels of the same color are located in the same second direction, and each color resist portion covers a plurality of sub-pixels in the second direction; The display substrate is configured such that when entering the developing section, one end of the display substrate in a first direction is lifted up to be in an inclined state; The orthographic projection of the color resist portion on the base substrate is in a trapezoidal shape.

8. A display panel, characterized in that: It comprises the display substrate described in any one of claims 1 to 3, the display substrate described in any one of claims 4 to 6, or the display substrate described in claim 7.

9. A display device, characterized in that: Comprising the display panel as claimed in claim 8.

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