CN210954541U

CN210954541U - Display panel

Info

Publication number: CN210954541U
Application number: CN202020006623.0U
Authority: CN
Inventors: 邵喜斌; 干泉; 王章涛; 马睿; 邵贤杰; 王永灿
Original assignee: BOE Technology Group Co Ltd; Hefei Xinsheng Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Hefei Xinsheng Optoelectronics Technology Co Ltd
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2020-07-07
Anticipated expiration: 2030-01-02

Abstract

A display panel, the display panel comprising: the first substrate and the second substrate are oppositely arranged; the bulge part is arranged on the surface of the first substrate facing the second substrate; the spacer is arranged on the surface of the second substrate facing the first substrate; the projection comprises a first color resistance layer and a second color resistance layer which are overlapped along a first direction perpendicular to the first substrate, the orthographic projection of the spacer on the second substrate is at least partially overlapped with the orthographic projection of the projection on the second substrate, and the height of the spacer abutted against the projection is obviously lower than the box thickness of the liquid crystal display panel by arranging the projection on the display panel, so that the generation of PS Mura is avoided.

Description

Display panel

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display substrate.

Background

A liquid crystal display panel is a conventional flat display panel, and in recent years, it has been widely used in display devices such as notebook personal computers, cellular phones, televisions, monitors, and the like, because of advantages such as lightness, thinness, and low power consumption of the liquid crystal display panel.

SUMMERY OF THE UTILITY MODEL

Some embodiments of the present disclosure provide a display panel, including: the first substrate and the second substrate are oppositely arranged; the bulge part is arranged on the surface of the first substrate facing the second substrate; the spacer is arranged on the surface of the second substrate facing the first substrate; the raised part comprises a first color resistance layer and a second color resistance layer which are overlapped along a first direction perpendicular to the first substrate, and the orthographic projection of the spacer on the second substrate is at least partially overlapped with the orthographic projection of the raised part on the second substrate.

In some embodiments, the protrusion further includes a third color-resist layer, wherein the first color-resist layer, the second color-resist layer, and the third color-resist layer are stacked in the first direction.

In some embodiments, an orthographic projection of the protrusion on the second substrate is elongated and extends in a second direction parallel to the second substrate, and an orthographic projection of the spacer on the second substrate is elongated and extends in a third direction parallel to the second substrate, wherein the orthographic projection of the protrusion on the second substrate and the orthographic projection of the spacer on the second substrate intersect with each other.

In some embodiments, the width of the orthographic projection of the convex part on the second substrate is 5-50 μm, and the length is more than 15 μm, and the width of the orthographic projection of the spacer on the second substrate is 3-50 μm, and the length is more than 15 μm.

In some embodiments, the display panel further comprises: the black matrix is arranged on the first substrate and located on one side, close to the second substrate, of the first substrate, the protruding portion is arranged on one side, close to the second substrate, of the black matrix, and the orthographic projections of the protruding portion and the spacer on the second substrate fall into the orthographic projections of the black matrix on the second substrate.

In some embodiments, the display panel has a shielding region provided with a black matrix and an opening region surrounded by the shielding region and arranged in an array, and the display panel further includes a liquid crystal layer disposed between the first substrate and the second substrate, wherein the spacer has a thickness in the first direction smaller than a thickness of the liquid crystal layer in the opening region in the first direction.

In some embodiments, the display panel further comprises: and a data line and a gate line disposed on the second substrate and located at a side of the second substrate facing the first substrate, wherein one of the data line and the gate line extends in the second direction and the other extends in the third direction.

In some embodiments, the gate line extends along the second direction, an orthographic projection of the spacer on the second substrate at least partially overlaps an orthographic projection of the data line on the second substrate, and an orthographic projection of the protrusion on the second substrate at least partially overlaps an orthographic projection of the gate line on the second substrate; or the data line extends along the second direction, the orthographic projection of the convex part on the second substrate at least partially overlaps with the orthographic projection of the data line on the second substrate, and the orthographic projection of the spacer on the second substrate at least partially overlaps with the orthographic projection of the gate line on the second substrate.

In some embodiments, a first overlapping portion of an orthographic projection of the protrusion on the second substrate and an orthographic projection of the spacer on the second substrate at least partially overlaps a second overlapping portion of an orthographic projection of the data line on the second substrate and an orthographic projection of the gate line on the second substrate.

In some embodiments, the display panel has a display area and a non-display area around the display area, wherein an orthographic projection of the protrusion on the second substrate is continuous in the second direction and intersects the display area.

In some embodiments, a plurality of the protrusions are arranged on the display panel, and the plurality of the protrusions are arranged at intervals along the second direction; or a plurality of protruding parts arranged in an array are arranged on the display panel.

In some embodiments, an orthographic projection of the first color-resist layer on the second substrate coincides with an orthographic projection of the second color-resist layer on the second substrate.

In some embodiments, orthographic projections of the first color-resisting layer, the second color-resisting layer and the third color-resisting layer on the second substrate are all mutually coincident.

In some embodiments, orthographic projections of two of the first color-resist layer, the second color-resist layer and the third color-resist layer on the second substrate coincide, and orthographic projections of the other one on the second substrate fall within the orthographic projections of the two on the second substrate.

In some embodiments, the display panel further comprises: and the black matrix is arranged on the first substrate and positioned on one side of the first substrate close to the second substrate, wherein the orthographic projection of the bulge part on the second substrate is not overlapped with the orthographic projection of the black matrix on the second substrate.

In some embodiments, the spacer abuts the boss and the spacer is in a compressed state in the first direction.

In the embodiment, the protruding portion is arranged, so that the height of the spacer abutting against the protruding portion is obviously lower than the box thickness of the liquid crystal display panel, even if the array substrate and the color film substrate are dislocated when the liquid crystal display panel is extruded by an external force, the spacer is separated from the protruding portion and is in a non-compression state, the spacer cannot scratch an alignment layer in the sub-pixels of the opposite substrate, and the generation of PS Mura is avoided.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly described below, and it should be understood that the drawings described below relate only to some embodiments of the present disclosure, and not to limit the present disclosure, wherein:

fig. 1 is a schematic top view of a liquid crystal display panel according to the related art;

FIG. 2 is a cross-sectional view of the LCD panel of FIG. 1 taken along line B-B;

FIG. 3 is a cross-sectional view taken along line B-B of the LCD panel of FIG. 1 when it is bent under pressure;

FIG. 4 is a schematic top view of a liquid crystal display panel according to some embodiments of the present disclosure;

FIG. 5 is a cross-sectional view of the LCD panel of FIG. 4 taken along line C-C;

fig. 6 is a cross-sectional view of the liquid crystal display panel of fig. 4 taken along D-D.

Fig. 7 is a cross-sectional view of the liquid crystal display panel of fig. 4 taken along E-E.

Fig. 8 is a cross-sectional view of the liquid crystal display panel of fig. 4 taken along F-F.

FIG. 9 is a cross-sectional view of a liquid crystal display panel according to some embodiments of the present disclosure;

FIG. 10 is a cross-sectional view of a liquid crystal display panel according to some embodiments of the present disclosure;

FIG. 11 is a schematic top view of a liquid crystal display panel according to some embodiments of the present disclosure;

FIG. 12 is a schematic top view of a liquid crystal display panel according to some embodiments of the present disclosure;

FIG. 13 is a flow chart of a method of manufacturing a liquid crystal display panel according to some embodiments of the present disclosure;

fig. 14 is a detailed flowchart of step S10 in fig. 13.

Detailed Description

To more clearly illustrate the objects, aspects and advantages of the present disclosure, embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It is to be understood that the following description of the embodiments is intended to illustrate and explain the general concepts of the disclosure and should not be taken as limiting the disclosure. In the specification and drawings, the same or similar reference numerals refer to the same or similar parts or components. The figures are not necessarily to scale and certain well-known components and structures may be omitted from the figures for clarity.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "a" or "an" does not exclude a plurality. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", "top" or "bottom", etc. are used merely to indicate relative positional relationships, which may change when the absolute position of the object being described changes. When an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present.

Fig. 1 illustrates a schematic top view of a liquid crystal display panel according to the related art, and fig. 2 illustrates a cross-sectional view of the liquid crystal display panel in fig. 1 taken along B-B. As shown in fig. 1 and 2, the conventional liquid crystal display panel 100 includes an array substrate 10 and a color filter substrate 20 which are oppositely disposed, and a liquid crystal layer LC interposed between the array substrate 10 and the color filter substrate 20. The side of the color film substrate 20 facing the array substrate 10 is provided with a black matrix BM and a color film CF.

The liquid crystal display panel 100 has a display area AA and a non-display area NA, in the display area AA, the black matrix BM encloses a plurality of sub-pixels P, the color film layer CF is disposed in each sub-pixel P, and the color film layer CF in each sub-pixel P may be one of a red color film layer, a green color film layer and a blue color film layer.

As shown in fig. 2, a data line DL for providing a data signal to the sub-pixel P is disposed on a side of the array substrate 10 facing the color filter substrate 20. In the related art, the array substrate 10 and the color filter substrate 20 need to be kept parallel as much as possible, so that the cell thicknesses of the liquid crystal display panel at the sub-pixels P are kept substantially consistent (that is, the thicknesses of the liquid crystal layers in the sub-pixels P are substantially consistent), and uniform display can be further achieved. In order to achieve the above effect, it is usually necessary to provide a spacer PS on the side of the color filter substrate 20 facing the array substrate 10. For example, as shown in fig. 2, the cross section of the columnar spacers PS is an inverted trapezoid, and the surface of the spacers PS facing the array substrate 10 abuts on the data lines DL provided on the array substrate 10, thereby maintaining the cell thickness of the liquid crystal display panel 100.

The inventors have found that the liquid crystal display panel 100 in the related art may cause some display defects, such as PS Mura, when bent by an external force. The inventors have found through a large number of experiments that the principle of generation of PS Mura is as follows:

when the liquid crystal display panel 100 is in a normal state, the spacers PS abut against the data lines DL on the array substrate 10, and are in a compressed state and maintain a certain compression ratio, thereby supporting the cell thickness of the liquid crystal display panel 100 and ensuring uniformity of the cell thickness. When the liquid crystal display panel 100 is subjected to an external force, the liquid crystal display panel 100 may be bent, and the array substrate 10 and the color filter substrate 20 may be relatively displaced in a direction parallel to the display surface, as shown in fig. 3, at this time, the spacer PS in a compressed state may contact the alignment layer PI (made of a polyimide material) on the array substrate 10 in the adjacent sub-pixel P and deviate from the corresponding data line DL, so that the alignment layer PI is scratched. The damaged alignment film PI may affect the anchoring alignment of the liquid crystal molecules on the surface thereof, and affect the normal display of the sub-pixel P, resulting in PS Mura (moire). Although only the alignment layer PI located in the sub-pixel P and on the array substrate 10 is shown in fig. 2 and 3, it can be understood by those skilled in the art that, in the entire display area AA, the alignment layer is formed on the entire surface of the side of the array substrate 10 facing the color filter substrate 20, and the alignment layer is also formed on the entire surface of the side of the color filter substrate 20 facing the array substrate 10.

In order to overcome the above-mentioned PS Mura in the related art, a manner of widening the black matrix BM is generally adopted, and even if the spacer PS scratches the alignment layer PI on the counter substrate, for example, the array substrate 10, the scratched area of the alignment layer PI is covered by the widened black matrix BM, which does not affect the normal display of the liquid crystal display panel, but the improvement measure reduces the aperture ratio of the liquid crystal display panel.

In the above related art, the spacer PS disposed on the color filter substrate 20 and abutting against the data line DL in the normal state of the liquid crystal display panel is exemplified, and in other related arts, the spacer PS disposed on the color filter substrate may also abut against the gate line of the array substrate or the thin film transistor of the sub-pixel P.

In order to overcome the above problems, the present disclosure provides a liquid crystal display panel including: the first substrate and the second substrate are oppositely arranged; the bulge part is arranged on the surface of the first substrate facing the second substrate; and the spacer is arranged on the surface of the second substrate facing the first substrate. The protruding portion comprises a first color resistance layer and a second color resistance layer which are overlapped along a first direction perpendicular to the first substrate, and the orthographic projection of the spacer on the second substrate is at least partially overlapped with the orthographic projection of the protruding portion in a second direction. In the present disclosure, "the first color-resist layer and the second color-resist layer stacked in the first direction perpendicular to the first substrate" means that an orthographic projection of the first color-resist layer on the first substrate at least partially overlaps, i.e., may completely overlap, or may partially overlap, an orthographic projection of the second color-resist layer on the first substrate. By arranging the bulge part, the height of the spacer abutted against the bulge part is obviously lower than the box thickness of the liquid crystal display panel, and even if the array substrate and the color film substrate are dislocated when the liquid crystal display panel is extruded by external force to cause the spacer to be separated from the bulge part and be in a non-compression state, the spacer cannot scratch an alignment layer in the sub-pixels of the opposite substrate, so that the generation of PS Mura is avoided. In addition, the color resistance material is adopted to form the bulge on the color film substrate, so that the bulge can be formed simultaneously when the color film layer is formed, the bulge is prevented from being formed by adopting an additional process, and the manufacturing cost is reduced as much as possible.

Some embodiments of the present disclosure provide a display panel, in particular, a liquid crystal display panel, fig. 4 shows a schematic top view of the liquid crystal display panel according to some embodiments of the present disclosure, wherein the gate lines GL extending along the X direction and the data lines DL extending along the Y direction shielded by the black matrix BM are not shown in fig. 4, fig. 5 is a cross-sectional view of the liquid crystal display panel along C-C in fig. 4, fig. 6 is a cross-sectional view of the liquid crystal display panel along D-D in fig. 4, fig. 7 is a cross-sectional view of the liquid crystal display panel along E-E in fig. 4, and fig. 8 is a cross-sectional view of the liquid crystal display panel along F-F in fig. 4.

As shown in fig. 4 to 8, the liquid crystal display panel 200 includes a first substrate, such as a color filter substrate 20, and a second substrate, such as an array substrate 10, disposed in parallel and opposite to each other, and a liquid crystal layer LC interposed between the first substrate and the second substrate. For convenience of description, the color filter substrate 20 is used as a first substrate, and the array substrate 10 is used as a second substrate in the following examples. The side of the color film substrate 20 facing the array substrate 10 is provided with a black matrix BM and a color film layer CF, the side of the array substrate 10 facing the color film substrate is provided with a data line DL and a gate line GL which are arranged in a crossing manner, for example, the data line DL and the gate line GL are arranged perpendicular to each other, and an insulating layer 11 is arranged between the data line DL and the gate line GL to prevent the data line DL and the gate line GL from being electrically connected.

The liquid crystal display panel 200 has a display area AA in which the black matrix BM encloses a plurality of sub-pixels P, color film layers CF are disposed in the respective sub-pixels P, and the color film layer CF in each sub-pixel P may be one of a first color film layer CF1, for example, a red color film layer allowing only red light to transmit, a second color film layer CF2, for example, a green color film layer allowing only green light to transmit, and a third color film layer CF3, for example, a blue color film layer allowing only blue light to transmit. In some embodiments, the sub-pixels P in the same pixel column have color film layers of the same color, in the same pixel row, the first color film layer CF1, the second color film layer CF2 and the third color film layer CF3 are sequentially and periodically arranged, and adjacent three sub-pixels P respectively include the first color film layer CF1, the second color film layer CF2 and the third color film layer CF3, thereby realizing color display. In this embodiment, the first color film layer CF1, the second color film layer CF2, and the third color film layer CF3 are a red color film layer, a green color film layer, and a blue color film layer, respectively, but the disclosure is not limited thereto, and in other embodiments, the first color film layer CF1, the second color film layer CF2, and the third color film layer CF3 are all red color film layers, and one of the green color film layer and the blue color film layer, that is, the first color film layer CF1 is one of the three color film layers, the second color film layer CF2 is another one of the three color film layers, and the third color film layer CF3 is the remaining one of the three color film layers.

As shown in fig. 4 to 8, a protruding portion 21 is disposed on a side of the color filter substrate 20 facing the array substrate 10, the protruding portion 21 is of a stacked design and includes a first color resist layer 211 and a second color resist layer 212 stacked along a first direction perpendicular to the color filter substrate 20, for example, a Z direction, and an orthogonal projection of the protruding portion 21 on the array substrate 10 falls within an orthogonal projection of the black matrix BM on the array substrate 10. The first color resist layer 211 may be made of the same material as one of the first color film layer CF1, the second color film layer CF2 and the third color film layer, and the second color resist layer 212 may be made of the same material as any one of the other two of the first color film layer CF1, the second color film layer CF2 and the third color film layer CF 3. Therefore, the convex part 21 can be synchronously formed in the process of forming the color film layer CF, so that the convex part is prevented from being formed by adopting an additional process, and the manufacturing cost is reduced as much as possible.

In this embodiment, as shown in fig. 5 and 6, an orthographic projection of the first color resist layer 211 on the array substrate 10 coincides with an orthographic projection of the second color resist layer 212 on the array substrate 10, and the protrusion 21 formed in this way is opaque, and at this time, a black matrix portion where the orthographic projection on the array substrate 10 coincides with the orthographic projection of the protrusion 21 on the array substrate 10 can be removed to reduce material cost when forming the black matrix, and at this time, the orthographic projection of the protrusion 21 on the array substrate 10 does not coincide with the orthographic projection of the black matrix on the array substrate 10. However, the present disclosure is not limited thereto, and in other embodiments, an orthogonal projection of the first color resist layer 211 on the array substrate 10 at least partially overlaps an orthogonal projection of the second color resist layer 212 on the array substrate 10, and the overlapping portion may form a protrusion.

As shown in fig. 4 to 8, a spacer PS is disposed on a side of the array substrate 10 facing the color filter substrate 20, a surface of the spacer PS facing the color filter substrate 20 abuts against the protrusion 21 and is in a compressed state, so that the box thickness of the liquid crystal display panel 200 is maintained, and an orthographic projection of the spacer PS on the array substrate 10 falls into an orthographic projection of the black matrix BM on the array substrate 10.

Specifically, as shown in fig. 4 to 8, the gate line GL extends in an X direction on the array substrate 10, the data line DL extends in a Y direction on the array substrate 10, the X direction is, for example, perpendicular to the Y direction, an orthographic projection of the gate line GL on the array substrate 10 falls within an orthographic projection of the black matrix BM on the array substrate 10, an orthographic projection of the data line DL on the array substrate 10 falls within an orthographic projection of the black matrix BM on the array substrate 10, and the orthographic projection of the data line DL on the array substrate 10 perpendicularly intersects the orthographic projection of the gate line GL on the array substrate 10.

In some embodiments, as shown in fig. 4 to 8, an orthogonal projection of the protrusion 21 on the array substrate 10 is elongated and extends parallel to the second direction of the array substrate 10, for example, the X direction, and an orthogonal projection of the spacer PS on the array substrate 10 is elongated and extends parallel to the third direction of the array substrate 10, for example, the Y direction. The orthographic projection of the convex part 21 on the array substrate 10 intersects with the orthographic projection of the spacer PS on the array substrate 10, for example, the projections intersect perpendicularly. A first overlapping portion of an orthographic projection of the convex portion 21 on the array substrate 10 and an orthographic projection of the spacer PS on the array substrate 10 at least partially overlaps a second overlapping portion of an orthographic projection of the data line DL on the array substrate 10 and an orthographic projection of the gate line GL on the array substrate 10, and an abutting portion of the spacer PS and the convex portion 21 is located at an intersection region of the data line DL and the gate line GL. The term "an orthographic projection is at least partially overlapped with another orthographic projection" means that at least a part of an orthographic projection and another orthographic projection have an overlapping region, and may include various situations that the orthographic projection falls within the another orthographic projection, the another orthographic projection falls within the orthographic projection, the orthographic projection and the another orthographic projection are overlapped, and a part of the orthographic projection and a part of the another orthographic projection are overlapped.

In some embodiments, an orthographic projection of the protrusion 21 on the array substrate 10 at least partially overlaps with an orthographic projection of the gate line GL on the array substrate 10, for example, as shown in fig. 5 and 7, the orthographic projection of the protrusion 21 on the array substrate 10 falls within the orthographic projection of the gate line GL on the array substrate 10. The orthographic projection of the spacer PS on the array substrate 10 at least partially overlaps the orthographic projection of the data line DL on the array substrate 10, for example, as shown in fig. 6 and 8, the orthographic projection of the spacer PS on the array substrate 10 falls within the orthographic projection of the data line DL on the array substrate 10.

As shown in fig. 7, the spacer PS is disposed on a side of the data line DL away from the array substrate 10, and when the liquid crystal panel 200 is in a normal state, the spacer PS (depicted by a solid line) is completely shielded by the black matrix BM, and does not affect the alignment layers PI in the sub-pixels P on both sides of the spacer PS. When the liquid crystal panel is bent under the action of an external force, the array substrate 10 and the color filter substrate 20 are relatively displaced in a direction parallel to the display surface, the protrusion 21 and the spacer PS are also relatively displaced, and the spacer PS (depicted by a solid line) may enter an adjacent sub-pixel P, even if the protrusion 21 disposed on the color filter substrate 20 and the spacer PS disposed on the array substrate 10 are in a long strip shape in the orthographic projection on the array substrate, and the two are vertically crossed, the spacer PS entering the sub-pixel P generally cannot be separated from the protrusion 21, that is, the spacer PS generally always abuts against the protrusion 21 and is in a compressed state in the first direction, and at this time, the spacer PS does not contact with the alignment layer PI in the sub-pixel P, and cannot scratch the alignment layer PI. Even if the array substrate 10 and the color filter substrate 20 are relatively displaced in a direction parallel to the display surface, so that the spacer PS entering the sub-pixel P is separated from the protrusion 21 and is in a non-compressed state, due to the design that the spacer PS and the protrusion 21 are in contact, the thickness d of the spacer PS in the first direction Z in the embodiment is significantly lower than that of the spacer in the conventional art, and even if the spacer PS in the embodiment is in the non-compressed state, the thickness d1 is also significantly smaller than the cell thickness g of the liquid crystal display panel 200, that is, the thickness of the liquid crystal layer LC in the sub-pixel P. Therefore, the spacers PS entering the sub-pixel P do not contact the alignment layer PI in the sub-pixel P, and the alignment layer PI is not scratched. By adopting the liquid crystal display panel 200 in the embodiment, the generation of the PS Mura can be avoided, and the display quality can be improved.

It is understood that the liquid crystal display panel has a shielding region provided with the black matrix BM and an opening region surrounded by the shielding region and arranged in an array, the sub-pixel P is disposed in the opening region, and the cell thickness g of the liquid crystal display panel 200 is the thickness of the liquid crystal layer LC in the first direction in the opening region.

In the above embodiments, only the alignment layer PI disposed on the side of the color filter substrate 20 facing the array substrate 10 is shown in fig. 7 and fig. 8, and it can be understood by those skilled in the art that, in the entire display area AA, the alignment layer is formed on the entire surface of the side of the array substrate 10 facing the color filter substrate 20, and the alignment layer is also formed on the entire surface of the side of the color filter substrate 20 facing the array substrate 10. The aforementioned situation that the spacer PS abuts against the protruding portion 21 includes not only the situation that the two are in direct contact, but also the situation that other layer structures such as an alignment layer and a protection layer are further disposed between the two.

In some embodiments, the sizes of the protruding portions 21 and the spacers PS may be set according to actual needs, and specifically, for example, the width of the orthographic projection (the strip pattern) of the protruding portions 21 on the array substrate 10 may be 5 μm to 50 μm, the length may be 15 μm or more, the width of the orthographic projection (the strip pattern) of the spacers PS on the array substrate 10 may be 3 μm to 50 μm, and the length may be 15 μm or more.

In some embodiments, as shown in fig. 4, there are a plurality of the protruding portions 21, a plurality of the spacers PS corresponding to the protruding portions 21 one by one are also provided, the plurality of protruding portions 21 are arranged in an array, and the plurality of protruding portions 21 arranged along the second direction, for example, the X direction, are arranged at intervals. As shown in fig. 4, not all crossing regions of the gate lines GL and the data lines DL are provided with the protrusions 21 and the spacers PS, and it will be understood by those skilled in the art that in other embodiments, all crossing regions of the gate lines GL and the data lines DL may be provided with the protrusions 21 and the spacers PS.

Some embodiments of the present disclosure provide a liquid crystal display panel 300, as shown in fig. 9, which is substantially the same as the liquid crystal display panel 200 in the embodiment corresponding to fig. 4 to 8, and the differences between the liquid crystal display panel in the embodiment and the liquid crystal display panel 200 in the embodiment corresponding to fig. 4 to 8 are mainly described below, and the same parts are not repeated.

Fig. 9 corresponds to fig. 5 of the previous embodiment, and as shown in fig. 9, the protruding portion 21' further includes a third color-resist layer 213 in addition to the first color-resist layer 211 and the second color-resist layer 212. The first color resist 211, the second color resist 212, and the third color resist 213 are sequentially stacked along a first direction perpendicular to the color filter substrate 20, for example, a Z direction. In the present disclosure, "the first color-resist layer, the second color-resist layer, and the third color-resist layer are stacked in the first direction perpendicular to the first substrate" means that any two of an orthographic projection of the first color-resist layer on the first substrate, an orthographic projection of the second color-resist layer on the first substrate, and an orthographic projection of the third color-resist layer on the first substrate at least partially overlap, that is, may completely overlap, and may partially overlap. The first color resist layer 211, the second color resist layer 212 and the third color resist layer 213 may be made of the same material as the first color film layer CF1, the second color film layer CF2 and the third color film layer CF3, respectively. The first color film layer CF1, the second color film layer CF2 and the third color film layer CF3 are all red color film layers, and one of the green color film layer and the blue color film layer, namely, the first color film layer CF1 is one of the three color film layers, the second color film layer CF2 is the other one of the three color film layers, and the third color film layer CF3 is the remaining one of the three color film layers. Therefore, the convex part 21 can be synchronously formed in the process of forming the color film layer CF, so that the convex part is prevented from being formed by adopting an additional process, and the manufacturing cost is reduced as much as possible. In addition, the protrusion 21 'formed in this embodiment has a larger thickness than the protrusion 21 in the liquid crystal display panel 200 in the embodiment corresponding to fig. 4 to 8, and the spacer PS disposed on the array substrate 10 and abutting against the protrusion 21' may have a smaller thickness, so as to further reduce the possibility that the spacer PS scratches the alignment layer PI on the opposite substrate side when the array substrate 10 and the color filter substrate 20 are relatively displaced in the direction parallel to the display surface due to bending of the liquid crystal panel under the action of external force.

In this embodiment, as shown in fig. 9, the orthographic projection of the first color resist layer 211 on the array substrate 10, the orthographic projection of the second color resist layer 212 on the array substrate 10, and the orthographic projection of the third color resist layer 213 on the array substrate 10 are all overlapped, the protrusion 21 formed in this way is opaque, at this time, a black matrix part where the orthographic projection on the array substrate 10 and the orthographic projection of the protrusion 21 on the array substrate 10 are overlapped can be removed to reduce the material cost when forming the black matrix, at this time, the orthographic projection of the protrusion 21 on the array substrate 10 and the orthographic projection of the black matrix on the array substrate 10 are not overlapped. However, the disclosure is not limited thereto, in some embodiments, the light-tight protrusion of the protruding portion 21 can be achieved by overlapping the orthographic projection of the first color-resist layer 211 on the array substrate 10, the orthographic projection of the second color-resist layer 212 on the array substrate 10, and the orthographic projection of the third color-resist layer 213 on the array substrate 10, and the orthographic projection of the other one on the array substrate 10 falls into the orthographic projections of the two array substrates 10, for example, as shown in fig. 10, the area of the orthographic projection of the first color-resist layer 211 on the array substrate 10 and the area of the orthographic projection of the second color-resist layer 212 on the array substrate 10 are both larger than the area of the orthographic projection of the third color-resist layer 213 on. At this time, a black matrix portion where an orthographic projection on the array substrate 10 coincides with an orthographic projection of the protrusion 21 on the array substrate 10 may be removed to reduce material cost when forming the black matrix, and at this time, the orthographic projection of the protrusion 21 on the array substrate 10 does not coincide with the orthographic projection of the black matrix on the array substrate 10. In other embodiments, the orthographic projection of the first color-resist layer 211 on the array substrate 10 at least partially overlaps with the orthographic projection of the second color-resist layer 212 on the array substrate 10 and the orthographic projection of the third color-resist layer 213 on the array substrate 10, and the overlapping portion may form a protrusion.

Some embodiments of the present disclosure provide a liquid crystal display panel 400, as shown in fig. 11, which is substantially the same as the liquid crystal display panel 200 in the embodiment corresponding to fig. 4 to 8, and the differences between the liquid crystal display panel in the embodiment and the liquid crystal display panel 200 in the embodiment corresponding to fig. 4 to 8 are mainly described below, and the same parts are not repeated.

Fig. 11 corresponds to fig. 4 of the foregoing embodiment, in which an orthographic projection of the protrusion 21 of the liquid crystal display panel 400 on the array substrate 10 is in a shape of an elongated bar, and extends parallel to the second direction of the array substrate 10, for example, the Y direction, and an orthographic projection of the spacers PS on the array substrate 10 is in a shape of an elongated bar, and extends parallel to the second direction of the array substrate 10, for example, the Y direction. The orthographic projection of the convex part 21 on the array substrate 10 intersects with the orthographic projection of the spacer PS on the array substrate 10, for example, the projections intersect perpendicularly. A first overlapping portion of an orthographic projection of the convex portion 21 on the array substrate 10 and an orthographic projection of the spacer PS on the array substrate 10 at least partially overlaps a second overlapping portion of an orthographic projection of the data line DL on the array substrate 10 and an orthographic projection of the gate line GL on the array substrate 10, and an abutting portion of the spacer PS and the convex portion 21 is located at an intersection region of the data line DL and the gate line GL.

In the present embodiment, an orthogonal projection of the protruding portion 21 on the array substrate 10 at least partially overlaps an orthogonal projection of the data line DL on the array substrate 10, for example, the orthogonal projection of the protruding portion 21 on the array substrate 10 falls within the orthogonal projection of the data line DL on the array substrate 10. The orthographic projection of the spacer PS on the array substrate 10 at least partially overlaps the orthographic projection of the gate line GL on the array substrate 10, for example, the orthographic projection of the spacer PS on the array substrate 10 falls within the orthographic projection of the gate line GL on the array substrate 10.

In this embodiment, the protrusion portion may also adopt a three-layer stacked structure of the protrusion portion 21' in the embodiment corresponding to fig. 9 and the embodiment corresponding to fig. 10, which is not described herein again.

Generally, the orthographic projection of the gate line GL on the array substrate 10 is wider than the orthographic projection of the data line DL on the array substrate 10, the width of the black matrix portion corresponding to the gate line GL is wider than the width of the black matrix portion corresponding to the data line DL, and it is not easy to obtain a smaller size when the protrusion portion is formed by using the color-resist material than when the spacer PS is formed by using the resin material, so that the liquid crystal display panel 200 is more advantageous to manufacture in the embodiment corresponding to fig. 4 to 8.

Some embodiments of the present disclosure provide a liquid crystal display panel 500, as shown in fig. 12, which is substantially the same as the liquid crystal display panel 200 in the embodiment corresponding to fig. 4 to 8, and the differences between the liquid crystal display panel in the embodiment and the liquid crystal display panel 200 in the embodiment corresponding to fig. 4 to 8 are mainly described below, and the same parts are not repeated.

Fig. 12 corresponds to fig. 4 of the foregoing embodiment, and the orthographic projection of the protruding portion 21 on the array substrate 10 is continuous in the second direction, for example, the X direction or the Y direction, and penetrates the display area AA, and in fig. 12, the second direction is the X direction. Since the protruding portion 21 is continuously disposed in the second direction and is opaque, the protruding portion 21 may be designed to have a specific width instead of a lateral black matrix portion, thereby reducing the material in the step of forming the black matrix BM.

In the above embodiment, the projections of the protruding portions 21, 21 ' and the spacers PS on the array substrate 10 are both in a long shape, and are arranged to intersect with each other, for example, to intersect perpendicularly, so that the spacers PS are not easy to detach from the protruding portions 21, 21 ', the spacers PS always abut against the protruding portions 21, 21 ', and are in a compressed state in the first direction, and the spacers PS do not contact with the alignment layer PI in the sub-pixel P, and do not scratch the alignment layer PI. However, the disclosure is not limited thereto, and in some embodiments, the protrusion 21, 21' and the spacer PS may also take other shapes, such as a column shape, so long as the height of the spacer PS is ensured to be significantly smaller than the thickness of the liquid crystal layer LC in the opening region, so as to reduce the probability that the spacer PS enters the sub-pixel P to scratch the alignment film PI on the opposite substrate to some extent, and reduce the probability that PS Mura occurs.

Some embodiments of the present disclosure provide a display device, which may include the liquid crystal display panel in the foregoing embodiments, and the display device may be: the mobile phone comprises any product or component with a display function and a camera shooting function, such as a television, a display, a digital photo frame, a mobile phone, an intelligent watch, a tablet personal computer and the like.

Some embodiments of the present disclosure provide a method for manufacturing a display panel, which may be a liquid crystal display panel in a display embodiment. As shown in fig. 13, the manufacturing method includes the steps of:

s10: forming a protrusion on a first substrate;

specifically, referring to fig. 4 to 8, the first substrate is, for example, a color filter substrate 20, a color resist material is used on the color filter substrate 20 to form a protrusion 21 by a patterning process, and the protrusion 21 may be formed on a side of the black matrix BM away from the color filter substrate 20. The protruding portion 21 formed on the color filter substrate 20 includes a first color resist layer 211 and a second color resist layer 212 stacked in a first direction perpendicular to the color filter substrate 20.

S20: forming a spacer on the second substrate;

specifically, referring to fig. 4 to 8, the first substrate is, for example, an array substrate 20, and a spacer PS is formed on the array substrate 10 by using a patterning process, where the spacer PS may be formed on a side of the data line DL away from the array substrate 10.

S30: and a first substrate and a second substrate are oppositely arranged.

Specifically, with reference to fig. 4 to 8, a color filter substrate 20 on which a protruding portion 21 is formed and an array substrate 10 on which a spacer PS is formed are paired and boxed, so that the spacer PS abuts against the protruding portion 21, and an orthographic projection of the spacer PS on the array substrate 10 at least partially overlaps with an orthographic projection of the protruding portion 21 on the array substrate 10.

In some embodiments, the order of steps S10 and S20 may be reversed, or both steps may be performed simultaneously.

In some embodiments, as shown in fig. 14, step S10 specifically includes:

s11: forming a first color resistance layer on a first substrate;

specifically, with reference to fig. 4-8, a first color resist layer 211 is formed on the color film substrate 20 by using the same material as the first color film layer CF1 and using the same composition process, wherein the first color resist layer 211 is formed on a side of the black matrix BM away from the color film substrate 20, and the first color film layer CF1 is one of a red color film layer, a green color film layer, and a blue color film layer.

S12: forming a second color resistance layer on one side of the first color resistance layer, which is far away from the first substrate;

specifically, with reference to fig. 4-8, the second color resist layer 212 is formed on the side of the first color resist layer 211 away from the color film substrate 20 by using the same material as the second color film layer CF2 and using the same composition process, and the second color film layer CF2 is another one of the red color film layer, the green color film layer and the blue color film layer.

In some embodiments, as shown in fig. 9, the protruding portion 21' further includes a third color resist layer 213 stacked on the first color resist layer 211 and the second color resist layer 212 along a first direction perpendicular to the color filter substrate 20, and in this case, as shown in fig. 14, the step S10 may further include:

s13: forming a third color resistance layer on one side of the second color resistance layer far away from the first substrate;

specifically, as shown in fig. 9, the third color resist layer 213 is formed on the side of the second color resist layer 212 away from the color film substrate 20 by using the same material and the same composition process as the third color film layer CF3, where the third color film layer CF3 is the remaining one of the red color film layer, the green color film layer, and the blue color film layer.

According to the manufacturing method of the display device, the photoresist layers forming the protruding parts are synchronously formed when the color film layers are formed, so that the protruding parts are prevented from being formed by adopting an additional process, and the manufacturing cost is reduced as much as possible.

Although the present disclosure is described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of the embodiments of the disclosure, and should not be construed as a limitation of the disclosure. The dimensional proportions in the drawings are merely schematic and are not to be understood as limiting the disclosure.

The foregoing embodiments are merely illustrative of the principles and configurations of this disclosure and are not to be construed as limiting thereof, it being understood by those skilled in the art that any variations and modifications of the disclosure may be made without departing from the general concept of the disclosure. The protection scope of the present disclosure shall be subject to the scope defined by the claims of the present application.

Claims

1. A display panel, comprising:

the first substrate and the second substrate are oppositely arranged;

the bulge part is arranged on the surface of the first substrate facing the second substrate; and

the spacer is arranged on the surface of the second substrate facing the first substrate;

wherein the protrusion portion includes a first color resist layer and a second color resist layer stacked in a first direction perpendicular to the first substrate,

the orthographic projection of the spacer on the second substrate is at least partially overlapped with the orthographic projection of the convex part on the second substrate.

2. The display panel of claim 1, wherein the protrusion further comprises a third color-resist layer, wherein the first, second, and third color-resist layers are stacked in the first direction.

3. The display panel according to claim 1 or 2, wherein an orthographic projection of the protrusion on the second substrate is elongated and extends in a second direction parallel to the second substrate, and an orthographic projection of the spacer on the second substrate is elongated and extends in a third direction parallel to the second substrate, wherein the orthographic projection of the protrusion on the second substrate intersects with the orthographic projection of the spacer on the second substrate.

4. The display panel according to claim 3, wherein an orthogonal projection of the protrusion on the second substrate has a width of 5 μm to 50 μm and a length of 15 μm or more, and an orthogonal projection of the spacer on the second substrate has a width of 3 μm to 50 μm and a length of 15 μm or more.

5. The display panel of claim 3, further comprising:

the black matrix is arranged on the first substrate and is positioned on one side of the first substrate close to the second substrate,

the projection part is arranged on one side, close to the second substrate, of the black matrix, and the orthographic projections of the projection part and the spacer on the second substrate fall into the orthographic projection of the black matrix on the second substrate.

6. The display panel of claim 5, wherein the display panel has a blocking area provided with a black matrix and open areas surrounded by the blocking area and arranged in an array, and further comprising a liquid crystal layer disposed between the first substrate and the second substrate, wherein the spacer has a thickness in the first direction smaller than that of the liquid crystal layer in the open area.

7. The display panel of claim 3, further comprising:

data lines and gate lines disposed on the second substrate at a side of the second substrate facing the first substrate,

wherein one of the data line and the gate line extends in the second direction and the other extends in the third direction.

8. The display panel of claim 7,

the gate line extends along the second direction, an orthographic projection of the spacer on the second substrate at least partially overlaps with an orthographic projection of the data line on the second substrate, and an orthographic projection of the projection on the second substrate at least partially overlaps with an orthographic projection of the gate line on the second substrate; or

The data line extends along the second direction, the orthographic projection of the convex part on the second substrate at least partially overlaps with the orthographic projection of the data line on the second substrate, and the orthographic projection of the spacer on the second substrate at least partially overlaps with the orthographic projection of the gate line on the second substrate.

9. The display panel of claim 7, wherein a first overlapping portion of an orthographic projection of the protrusion on the second substrate and an orthographic projection of the spacer on the second substrate at least partially overlaps a second overlapping portion of an orthographic projection of the data line on the second substrate and an orthographic projection of the gate line on the second substrate.

10. The display panel according to claim 3, wherein the display panel has a display area and a non-display area around the display area, wherein an orthographic projection of the projection on the second substrate is continuous in the second direction and penetrates the display area.

11. The display panel of claim 3,

the display panel is provided with a plurality of convex parts which are arranged at intervals along a second direction; or

The display panel is provided with a plurality of protruding parts arranged in an array.

12. The display panel of claim 1, wherein an orthographic projection of the first color-resist layer on the second substrate coincides with an orthographic projection of the second color-resist layer on the second substrate.

13. The display panel according to claim 2, wherein orthographic projections of the first color-resist layer, the second color-resist layer and the third color-resist layer on the second substrate are all coincident with each other.

14. The display panel according to claim 2, wherein orthographic projections of two of the first color-resist layer, the second color-resist layer and the third color-resist layer on the second substrate coincide, and an orthographic projection of the other on the second substrate falls within the orthographic projections of the two on the second substrate.

15. The display panel of any of claims 12-14, further comprising:

wherein an orthographic projection of the convex part on the second substrate is not overlapped with an orthographic projection of the black matrix on the second substrate.

16. The display panel according to claim 1 or 2, wherein the spacer abuts the boss, and the spacer is in a compressed state in the first direction.