CN111736386B

CN111736386B - Color film substrate, display panel and display device

Info

Publication number: CN111736386B
Application number: CN202010533618.XA
Authority: CN
Inventors: 黄其; 周荣生; 吴继耀
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2022-09-23
Anticipated expiration: 2040-06-12
Also published as: CN111736386A

Abstract

The invention discloses a color film substrate, a display panel and a display device, and relates to the technical field of display, wherein a color film comprises: a first substrate; the first light shielding layer comprises a first hollow-out part and a second hollow-out part; the color resistor is arranged in the first hollow part; the first light-transmitting layers cover the color resistors and are filled in the second hollow parts, wherein the total volume of the first light-transmitting layers filled in the second hollow parts is V1; the auxiliary structure comprises a second light-shielding layer and a second light-transmitting layer, the second light-shielding layer comprises a third hollowed-out part located in the second light-transmitting area, the orthographic projections of the third hollowed-out part and the second hollowed-out part on the first substrate are overlapped, at least part of the second light-transmitting layer is filled in the third hollowed-out part, and the total volume of the second light-transmitting layers filled in the third hollowed-out parts is V2; and the compensation parts are positioned in the light shielding area, the total volume of the compensation parts is V0, wherein V0 is V1+ V2. Therefore, the warping phenomenon of the color film substrate is favorably improved, and the production yield of products is improved.

Description

Color film substrate, display panel and display device

Technical Field

The invention relates to the technical field of display, in particular to a color film substrate, a display panel and a display device.

Background

From the CRT (Cathode Ray Tube) era to the liquid crystal era and now to the OLED (Organic Light-Emitting Diode) era, the display industry has been developing over decades. The display industry is closely related to our lives, and display technologies cannot be separated from traditional mobile phones, flat panels, televisions and PCs, to current intelligent wearable devices and VRs.

In order to meet the use requirements of users on display devices, more and more display devices have a fingerprint identification function. Generally, when a touch occurs on the display panel, light reflected by the touch body is transmitted to the fingerprint recognition unit through the light transmission hole on the display panel, and the fingerprint recognition unit realizes a fingerprint recognition function by sensing the intensity of a light signal. In the prior art, a transparent material is usually filled in the transparent hole on one side of the color film substrate, and due to the existence of the transparent hole, the volume of the transparent material filled in the area where the transparent hole is formed for realizing planarization is larger than the volume of the transparent material filled in the area where the transparent hole is not formed for realizing planarization in a unit area of the light-emitting surface of the color film substrate, so that the color film substrate is likely to warp due to the difference in the filling volume of the transparent material, and the production yield of the color film substrate and the display panel is affected.

Disclosure of Invention

In view of this, the invention provides a color film substrate, a display panel and a display device, in which a compensation portion is introduced into a light-shielding region, and the volume of the introduced compensation portion is the same as the volume of a first light-transmitting layer and a second light-transmitting layer added by the introduction of a second light-transmitting region, so as to balance the volumes of the light-transmitting layers in the second light-transmitting region and the light-shielding region, thereby being beneficial to reducing the possibility of warpage of the color film substrate.

In a first aspect, the present application provides a color filter substrate, including a first light-transmitting region, a second light-transmitting region and a light-shielding region, the color filter substrate includes:

a first substrate;

the first light shielding layer comprises a plurality of first hollow parts and a plurality of second hollow parts, the first hollow parts are positioned in the first light transmission area, the second hollow parts are positioned in the second light transmission area, and orthographic projections of the second hollow parts and the second light transmission area on the first substrate are overlapped;

the color resistor is arranged in the first hollow part;

the first light-transmitting layer is positioned on the first light-shielding layer and one side of the color resistor, which is far away from the first substrate, covers the color resistor and is filled in the second hollow parts, wherein the total volume of the first light-transmitting layer filled in each second hollow part is V1;

at least one auxiliary structure, which is located between the color resistor and the first substrate along a direction perpendicular to the first substrate, and/or is located at a side of the first light-transmitting layer away from the first substrate; the auxiliary structure comprises a second light shielding layer and a second light-transmitting layer, and the second light-transmitting layer is positioned on one side, away from the first substrate, of the second light shielding layer along a direction perpendicular to the first substrate; the second light shielding layer comprises a third hollowed-out part positioned in the second light-transmitting area, orthographic projections of the third hollowed-out part and the second hollowed-out part on the first substrate are overlapped, at least part of the second light-transmitting layer is filled in the third hollowed-out part, and the total volume of the second light-transmitting layers filled in the third hollowed-out parts is V2;

and a plurality of compensation portions located on a side of the first light-transmitting layer or the second light-transmitting layer facing the first substrate and located in the light-shielding region, wherein a total volume of the compensation portions is V0, where V0 is V1+ V2.

In a second aspect, the present application further provides a display panel, including a fingerprint identification unit, an array substrate and a color film substrate, where the array substrate and the color film substrate are arranged oppositely, and the color film substrate is provided by the present application;

the array substrate comprises a second substrate, and the fingerprint identification unit is positioned on one side, facing the color film substrate, of the second substrate along a direction perpendicular to the plane of the second substrate;

the fingerprint identification unit comprises a plurality of photosensitive devices which are arranged in an array mode, and the orthographic projection of the photosensitive devices to the plane where the second substrate is located is at least partially overlapped with the orthographic projection of the second hollow parts to the second substrate.

In a third aspect, the present application further provides a display device including the display panel provided in the present application.

Compared with the prior art, the color film substrate, the display panel and the display device provided by the invention at least realize the following beneficial effects:

in the color film substrate, the display panel and the display device provided by the application, orthographic projections of the second hollow parts on the first light shielding layers and the third hollow parts on the second light shielding layers on the first substrate are overlapped, light transmission holes are formed in the color film substrate, the first light shielding layers are filled in the second hollow parts, and the second light shielding layers are filled in the third hollow parts. Particularly, the compensation part is introduced into the shading area, and the total volume of the introduced compensation part is equal to the total volume of the first light shielding layer filled in each second hollow part and the second light shielding layer filled in each third hollow part, so that the compensation part is utilized to balance the volume of the light transmission layer increased by the first light transmission layer and the second light transmission layer filled in the second hollow part and the third hollow part, the space volume of the material filled for realizing planarization is kept consistent in the light transmission hole area (the second light transmission area) and the non-light transmission hole area on the color film substrate, and the problem of substrate warping caused by volume difference in the prior art is further favorably solved, and the production yield of products is favorably improved.

Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic diagram illustrating an area of a color filter substrate with a light hole according to the prior art;

fig. 2 is a schematic diagram illustrating a region of a color filter substrate without a light hole according to the prior art;

fig. 3 is a top view of a color filter substrate according to an embodiment of the present disclosure;

fig. 4 is an AA' cross-sectional view of the color filter substrate of fig. 3;

fig. 5 is a cross-sectional view BB' of the color filter substrate shown in fig. 3;

fig. 6 is another cross-sectional view AA' of the color filter substrate of fig. 3;

fig. 7 is another BB' cross-sectional view of the color filter substrate of fig. 3, corresponding to fig. 6;

fig. 8 is a schematic view illustrating a pixel arrangement in a color filter substrate according to an embodiment of the present disclosure;

FIG. 9 is a diagram showing a relative position of the color resists, the light holes and the compensation portions;

FIG. 10 is a diagram showing another relative position of the color resists, the light holes and the compensation portions;

FIG. 11 is a diagram showing another relative position of the color resists, the light holes and the compensation portions;

fig. 12 is another BB' cross-sectional view of the color filter substrate of fig. 3;

fig. 13 is a top view of a display panel according to an embodiment of the present application;

FIG. 14 is a cross-sectional view of the display panel of FIG. 13, taken along line CC';

fig. 15 is a structural diagram of a display device according to an embodiment of the present application.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In order to meet the use requirements of users on display devices, more and more display devices have a fingerprint identification function. Generally, when a touch occurs on the display panel, light reflected by the touch body is transmitted to the fingerprint recognition unit through the light transmission hole on the display panel, and the fingerprint recognition unit realizes a fingerprint recognition function by sensing the intensity of a light signal. Fig. 1 is a schematic diagram of a region Z1 in which light holes are formed in a color filter substrate in the prior art, and fig. 2 is a schematic diagram of a region Z2 in which light holes are not formed in the color filter substrate in the prior art, when the light holes 70 are formed in a fingerprint identification area of the color filter substrate, inner walls of the light holes 70 are composed of multiple black light-shielding layers 71, and an optical adhesive 72 is disposed between two adjacent light-shielding layers 71 along a direction X in the viewing angles shown in fig. 1 and fig. 2. Compared with the area Z2 without the light hole, the area Z1 with the light hole 70 has a larger volume of the optical glue required for realizing the planarization, and the area 74 in fig. 2 has no light hole, and the corresponding area is covered by the light shielding layer 71, so that the area 74 has a smaller volume of the optical glue 72 required for realizing the planarization; therefore, the area of the color film substrate provided with the light holes and the area of the color film substrate not provided with the light holes have a difference in the planarization space volume of the optical adhesive, which may cause the color film substrate to warp, thereby affecting the yield of the product.

The following detailed description is to be read in connection with the drawings and the detailed description.

Fig. 3 is a top view of a color filter substrate provided in an embodiment of the present application, fig. 4 is an AA 'cross-sectional view of the color filter substrate in fig. 3, fig. 5 is a BB' cross-sectional view of the color filter substrate in fig. 3, please refer to fig. 3 to fig. 5, a color filter substrate 100 provided in the present invention includes a first light-transmitting area 10, a second light-transmitting area 20, and a light-shielding area 30, the color filter substrate 100 includes:

a first substrate 90;

the first light shielding layer 31 includes a plurality of first hollow portions 11 and a plurality of second hollow portions 22, the first hollow portions 11 are located in the first light transmitting areas 10, the second hollow portions 22 are located in the second light transmitting areas 20, and orthographic projections of the second hollow portions 22 and the second light transmitting areas 20 on the first substrate 90 are overlapped;

a color resistor 60 disposed in the first hollow portion 11;

the first transparent layer 41 is located on one side of the first light-shielding layer 31 and the color resistor 60 away from the first substrate 90, covers the color resistor 60, and is filled in the second hollow-out portions 22, wherein the total volume of the first transparent layer 41 filled in each second hollow-out portion 22 is V1;

at least one auxiliary structure 50, wherein the auxiliary structure 50 is located between the color resistor 60 and the first substrate 90 along a direction perpendicular to the first substrate 90, and/or the auxiliary structure 50 is located at a side of the first light-transmitting layer 41 away from the first substrate 90; the auxiliary structure 50 includes a second light-shielding layer 32 and a second light-transmitting layer 42, and the second light-transmitting layer 42 is located on a side of the second light-shielding layer 32 away from the first substrate 90 along a direction perpendicular to the first substrate 90; the second light-shielding layer 32 includes third hollow portions 23 located in the second light-transmitting regions 20, orthogonal projections of the third hollow portions 23 and the second hollow portions 22 on the first substrate 90 are overlapped, at least a portion of the second light-transmitting layer 42 is filled in the third hollow portions 23, and the total volume of the second light-transmitting layers 42 filled in the third hollow portions 23 is V2;

referring to fig. 5, the compensation portions 40 are located on one side of the first transparent layer 41 or the second transparent layer 42 facing the first substrate 90 and located in the light shielding region 30, and a total volume of the compensation portions 40 is V0, where V0 is V1+ V2.

It should be noted that the first light-transmitting area 10 refers to an opening area on the color filter substrate, and is color-blocked by a preset value. Fig. 3 only shows a relative position relationship between the first light-transmitting area 10 and the second light-transmitting area 20 in the color filter substrate 100 provided by the present invention, and does not represent actual sizes and numbers of the first light-transmitting area 10 and the second light-transmitting area 20, and the second light-transmitting area 20 may be distributed in a certain area in the display area, or may be distributed in the entire display area, which is not specifically limited in this application. In the color filter substrate, except for the first light-transmitting area 10 and the second light-transmitting area 20, the other areas are light-shielding areas 30, and the light-shielding areas 30 are covered by light-shielding layers, in order to more clearly embody the present invention, the light-shielding layers located in the light-shielding areas 30 are not embodied in the top view shown in fig. 3, and the arrangement manner of the light-shielding layers can be seen in the cross-sectional views of fig. 4 and 5.

The color film substrate 100 provided by the invention comprises a first light-transmitting area 10 and a second light-transmitting area 20, wherein the first light-transmitting area 10 corresponds to an area where the color resistor 60 is located and is used for transmitting light in the display process; the second light-transmitting region 20 may correspond to, for example, a light-transmitting hole 80 area required for fingerprint recognition, for transmitting light reflected by a touch subject to a fingerprint recognition sensor during fingerprint recognition. The first light-shielding layer 31 on the color filter substrate 100 may be, for example, a black matrix layer, and the black matrix layer is provided with a plurality of first hollow portions 11 and second hollow portions 22, where the first hollow portions 11 are used to place the color resistors 60, and the second hollow portions 22 are used as a part of the light-transmitting holes 80. In order to enable the light holes 80 to form a collimating hole structure, at least one auxiliary structure 50 is further introduced into the color film substrate 100 of the present application, the auxiliary structure 50 includes a second light shielding layer 32, the second light shielding layer 32 includes a third hollow portion 23 located in the second light transmitting area 20, and orthographic projections of the third hollow portion 23 and the second hollow portion 22 on the first substrate 90 are overlapped, so that the light holes 80 of the second light transmitting area 20 form the light holes 80 with the same inner diameter, thereby being beneficial to transmitting light reflected by a touch subject to a fingerprint identification sensor in a concentrated manner, and improving the sensitivity of fingerprint identification.

In the color filter substrate 100 provided by the invention, the first light-shielding layer 31 is arranged on the side of the first light-shielding layer 31 away from the first substrate 90, and meanwhile, the first light-shielding layer 31 is filled in each second hollow part 22; the second light-shielding layer 32 is disposed on a side of the second light-shielding layer 32 away from the first substrate 90, and the second light-shielding layer 32 is filled in each third hollow portion 23. It should be noted that, in the present application, the first light-shielding layer 31 and the second light-shielding layer 32 may be formed of the same material, and may be embodied as an optical adhesive, for example, in some other embodiments of the present application, the materials of the first light-shielding layer 31 and the second light-shielding layer 32 may also be different, as long as it is ensured that the materials have high transmittance.

Referring to fig. 4, in the second light transmitting area 20, due to the existence of the second hollow portion 22 and the third hollow portion 23, the second hollow portion 22 is filled with the first light transmitting layer 41, the third hollow portion 23 is filled with the second light transmitting layer 42, and since the second hollow portion 22 and the third hollow portion 23 need to be filled with the first light transmitting layer 41 and the second light transmitting layer 42 respectively, the volumes of the first light transmitting layer 41 and the second light transmitting layer 42 required for the second light transmitting area 20 to achieve planarization are larger than the volumes of the first light transmitting layer 41 and the second light transmitting layer 42 required for the other areas to achieve planarization, in view of this, the compensation portion 40 is introduced into the light shielding area 30, and the total volume of the introduced compensation portion 40 is equal to the total volume of the first light shielding layer 31 filled in each second hollow portion 22 and the second light transmitting layer 32 filled in each third hollow portion 23, so that the total volume of the first light transmitting layer 41 and the second light transmitting layer 42 filled in each second hollow portion 22 and the third hollow portion 23 is balanced by the compensation portion 40, and the total volume of the light transmitting layer 42 is increased The volume of the layers makes the space volumes of the materials filled in the light-transmitting hole 80 region (the second light-transmitting region 20) and the non-light-transmitting hole 80 region for realizing planarization on the color film substrate 100 consistent, so that the problem of substrate warpage caused by volume difference in the prior art is favorably solved, and the production yield of products is favorably improved.

It should be noted that, when the compensation portion 40 is introduced, when the first light-transmitting layer 41 or the second light-transmitting layer 42 is filled on the side of the compensation portion 40 away from the first substrate 90, since the compensation portion 40 occupies a certain space, the first light-transmitting layer or the second light-transmitting layer will move upward toward the side away from the first substrate 90, so that the volumes of the light-transmitting layers required for implementing planarization in the region where the light-transmitting hole is disposed and the region where the light-transmitting hole is not disposed are the same.

It should be further noted that fig. 4 and 5 illustrate a case where the color filter substrate 100 includes one auxiliary structure 50, the auxiliary structure 50 is located on a side of the first light shielding layer 31 facing the first substrate 90, and in some other embodiments of the present application, the number of the auxiliary structures 50 included in the color filter substrate 100 may also be 2 or more, for example, fig. 6 shows another AA 'cross-sectional view of the color filter substrate 100 in fig. 3, fig. 7 shows another BB' cross-sectional view of the color filter substrate 100 in fig. 3 corresponding to fig. 6, the number of the auxiliary structures 50 included in the color filter substrate 100 in this embodiment is 2, one of the auxiliary structures 50 is located on the side of the first light shielding layer 31 facing the first substrate 90, the other auxiliary structure 50 is located on the side of the color resistor 60 facing away from the first substrate 90, such a second hollow 22 and two third hollows 23 together form a light hole 80. Taking fig. 3, fig. 6, and fig. 7 as an example, assuming that volumes of light-transmitting layers filled in one second hollow portion 22 and one third hollow portion 23 are equal, in the embodiment shown in fig. 6 and fig. 7, one light-transmitting hole 80 corresponds to one second hollow portion 22 and two third hollow portions 23, and assuming that the number of light-transmitting holes 80 on the color filter substrate 100 is n, a total volume of the light-transmitting layers filled in all light-transmitting holes 80 corresponding to the second hollow portion 22 and the third hollow portions 23 is n times a volume of the first light-transmitting layer filled in a single second hollow portion 22. After the compensation part 40 is introduced into the light-shielding region 30, it is sufficient to ensure that the total volume of the introduced compensation part 40 is equal to the above total volume.

The top view provided by the present invention only shows that the orthographic projection of the light-transmitting hole 80 (corresponding to the second hollow portion 22 and the third hollow portion 23) on the first substrate 90 is rectangular, and in some other embodiments of the present application, the orthographic projection of the light-transmitting hole 80 on the first substrate 90 may also be circular, and the present application is not limited to this. In addition, the top view provided by the present invention only shows that the orthographic projection of the compensation portion 40 on the first substrate 90 is a circle, in some other embodiments of the present application, the orthographic projection of the compensation portion 40 on the first substrate 90 may also be a triangle, a trapezoid or an irregular shape, which is not specifically limited in the present application as long as the total volume of the compensation portion 40 is equal to the total volume of the light-transmitting layers filled in the second hollow portion 22 and the third hollow portion 23.

In an optional embodiment of the present invention, fig. 8 is a schematic diagram illustrating a pixel arrangement in a color filter substrate 100 provided in this embodiment of the present application, where color resistors 60 form a plurality of color resistor rows 81 and a plurality of color resistor columns 82, the color resistors 60 in the same color resistor row 81 are arranged along a first direction, and the color resistors 60 in the same color resistor column 82 are arranged along a second direction;

the second hollow-out portion 22 and the third hollow-out portion 23 overlapped in the orthographic projection of the first substrate 90 form a collimation hole, the orthographic projection of the collimation hole on the first substrate 90 is located between two adjacent color resist rows 81, the distance between any two adjacent collimation holes along the first direction is equal, and the distance between any two adjacent collimation holes along the second direction is equal.

Specifically, please continue to refer to fig. 8, when the liquid crystal display device has a fingerprint identification function, a fingerprint identification area may be disposed on the color film substrate 100, a fingerprint identification sensor is disposed in the fingerprint identification area, the second hollow portion 22 and the third hollow portion 23 in this application are disposed in the fingerprint identification area, when the second hollow portion 22 and the third hollow portion 23 form a collimating hole, an orthographic projection of the collimating hole on the first substrate may overlap with the fingerprint identification sensor, and the collimating hole has a function of converging light rays. In addition, in fingerprint identification district, the distance between two arbitrary collimation holes adjacent along first direction/second direction equals, that is to say, the collimation hole that this application set up is evenly arranged in fingerprint identification district, so is favorable to promoting the fingerprint identification homogeneity in each region in the fingerprint identification district.

In an alternative embodiment of the present invention, with continued reference to fig. 8, the front projection of the compensation portion 40 on the first substrate 90 is located between two adjacent color resist rows 81 and/or between two adjacent color resist columns 82.

Specifically, fig. 8 shows a scheme in which the compensation portions 40 are each disposed between two adjacent color resist rows 81, and in some other embodiments of the present application, the compensation portions 40 may also be disposed only between two adjacent color resist columns 82, or the compensation portions 40 may also be disposed between two adjacent color resist columns 82 and between two adjacent color resist rows 81 at the same time. Of course, if the width of the space between two adjacent color resist rows 81 is greater than the width of the space between two adjacent color resist columns 82, it is preferable to dispose the compensation part 40 between two adjacent color resist rows 81 having a greater width in order to simplify the manufacturing process. In any way, it is only necessary to ensure that the total volume of the introduced compensation portions 40 is equal to the total volume of the transparent layers filled in the second and third

hollow portions

22 and 23.

In an alternative embodiment of the present invention, referring to fig. 7, at least a portion of the compensation portion 40 is located on a surface of the first light shielding layer 31 away from the first substrate 90.

Specifically, with reference to fig. 7, when at least part of the compensation portion 40 is disposed on the surface of the first light shielding layer 31 away from the first substrate 90, since the color resist layer is also disposed on the side of the first light shielding layer 31 away from the first substrate 90, at this time, the compensation portion 40 and at least part of the color resist layer can be disposed in the same layer, which is beneficial to simplifying the production process of the compensation portion 40 and improving the production efficiency.

In an alternative embodiment of the present invention, referring to fig. 7 and 8, the color resistor 60 includes a first color resistor 61, a second color resistor 62 and a third color resistor 63, and at least a portion of the compensation portion 40 is disposed in the same layer as at least one of the first color resistor 61, the second color resistor 62 and the third color resistor 63.

With reference to fig. 8, the color resistor 60 includes at least three color resistors 60 of different colors, and in the manufacturing process of the color resistor 60, the color resistor 60 of the same color is manufactured in the same process, in the present application, when at least part of the compensation portion 40 and at least one of the first color resistor 61, the second color resistor 62 and the third color resistor 63 are disposed in the same layer, and if the compensation portion is disposed in the same layer as the first color resistor 61, the manufacturing of the compensation portion 40 can be completed while the first color resistor 61 is manufactured, and a new production flow does not need to be introduced into the compensation portion 40, so that the production flow of the color filter substrate 100 is simplified, and the production efficiency of the color filter substrate 100 is improved. Of course, fig. 7 only shows the case where the compensation portion 40 and the second color resist 62 are disposed on the same layer, and in other embodiments of the present application, the arrangement manner of the compensation portion 40 may also be: a part of the compensation part 40 and the first color resistor 61 are arranged in the same layer, a part of the compensation part 40 and the second color resistor 62 are arranged in the same layer, and another part of the compensation part 40 and the third color resistor 63 are arranged in the same layer, or a part of the compensation part 40 and one of the three colors are arranged in the same layer, and another part of the compensation part 40 and any one of the remaining two colors in the three color resistors 60 are arranged in the same layer, so that the compensation part 40 does not introduce a separate production flow, thereby being beneficial to saving the production process of the color film substrate 100 and improving the production efficiency of the color film substrate 100.

It should be noted that, in the present application, the first color resistor 61, the second color resistor 62 and the third color resistor 63 may be a red resistor, a green resistor and a blue resistor, respectively, in some other embodiments of the present application, in addition to the red resistor, the green resistor and the blue resistor, the color resistor on the color filter substrate 100 may further include color resistors of other colors, such as a white resistor, and the compensation portion 40 may also be disposed in the same layer as the white resistor, which is not specifically limited in this application.

In an actual production process, for example, referring to fig. 8, one compensation portion 40 may be respectively disposed for each light hole 80, that is, the volume of one compensation portion 40 may be designed to be equal to the total volume of the light-transmitting layers filled in the second hollow portion 22 and the third hollow portion 23 in one light hole 80, at this time, the shape of the orthogonal projection of the compensation portion 40 and the light hole 80 on the first substrate 90 may be set to be the same, or may be different according to actual conditions, the compensation portion 40 corresponding to the light hole 80 may be disposed between the same two adjacent color resist rows 81 and may be disposed adjacent to the light hole 80, that is, the light hole 80 and the compensation portion 40 are disposed in the region corresponding to the two adjacent color resist rows 82; the compensation portion 40 can also be disposed at an interval with the light hole 80, that is, the compensation portion 40 and the color-resistor row 82 are disposed in the corresponding area of two color-resistor rows 82 that are not adjacent to each other, for example, please refer to fig. 9, in which fig. 9 shows a relative position diagram of the color resistor, the light hole, and the compensation portion.

In some other embodiments of the present application, for example, referring to fig. 10, fig. 10 shows another relative position relationship diagram of the color resists, the light holes and the compensation portions, and two or more compensation portions 40 may be respectively disposed for each light hole 80, for example, one light hole 80 and two compensation portions 40 corresponding to the light hole 80 are outlined by a dashed frame in fig. 10, at this time, the total volume of the two or more compensation portions 40 corresponding to one light hole 80 may be designed to be equal to the total volume of the light transmission layers filled in the second hollow portion 22 and the third hollow portion 23 in one light hole, the orthogonal projection shapes of the two or more compensation portions 40 corresponding to one light hole 80 on the first substrate 90 may be set to be the same or different, for example, in the embodiment shown in fig. 10, the orthogonal projection shapes of the two compensation portions 40 corresponding to the same light hole 80 on the first substrate 90 may be respectively embodied as a triangle and an ellipse, of course, in some other embodiments of the present application, other shapes may be provided as long as the volume correspondence is equal.

In an alternative embodiment of the present invention, please refer to fig. 9 and 10, the compensation portion 40 and the color resistor 60 are not connected to each other. In the present application, when the compensation portion 40 is disposed, and when the compensation portion 40 is disposed on the same layer as the color resistor 60 of a certain color, the compensation portion 40 is disposed on a surface of the first light shielding layer 31 away from the substrate, that is, a surface of the compensation portion 40 facing the first substrate 90 is provided with a light shielding layer, for example, please refer to fig. 7, and the introduction of the compensation portion 40 does not affect the normal display. In this case, the compensation unit 40 and the color resistor 60 may be provided independently, that is, the compensation unit 40 and the color resistor 60 are not connected to each other. When the compensation portion 40 is disposed on the same layer as the color resist 60 of a certain color, a color resist layer is formed on the first side of the first light shielding layer 31 away from the first substrate 90, and then the color resist layer at an unnecessary position is removed, leaving the color resist 60 and the compensation portion 40. The arrangement mode that the compensation portion 40 is not connected with the color resistor 60 is beneficial to independently calculating the volume of the compensation portion 40, and is beneficial to ensuring that the volume of the compensation portion 40 introduced on the color film substrate 100 is consistent with the total volume of the light transmission layers filled in the second hollow portion 22 and the third hollow portion 23 in the collimation hole, so that the phenomenon that the color film substrate 100 is warped is favorably improved.

In an alternative embodiment of the present invention, fig. 11 is a diagram showing another relative position relationship of the color resistor 60, the collimating holes and the compensating portion 40, and at least a portion of the compensating portion 40 is connected to the color resistor 60. In this embodiment, a part of the compensation portion 40 introduced on the color filter substrate 100 is connected to at least a part of the color resistor 60, it should be noted that a surface of the compensation portion 40 connected to the color resistor 60 facing the first substrate 90 is provided with the first light shielding layer 31, and a surface of the color resistor 60 facing the first substrate 90 is not provided with the first light shielding layer 31, when the color resistor 60 and the compensation structure are manufactured, an unnecessary color resistor layer is removed from the formed color resistor layer, and a partial structure of the color resistor 60 connected to the color resistor 60 structure is remained, where the partial structure connected to the color resistor 60 structure is the compensation portion 40. Since the overall thickness of the color resist layer is consistent, and the size of the color resist 60 itself is fixed, even if the compensation portion 40 is connected to the color resist 60, the total volume of the compensation portion 40 connected to the color resist 60 can be accurately calculated to be equal to the total volume of the light transmission layers filled in the second hollow portion 22 and the third hollow portion 23 in each collimating hole, so that the phenomenon of warping of the color filter substrate 100 is effectively improved.

In an alternative embodiment of the present invention, with continued reference to fig. 11, the color resistors 60 in the same color resistor row 82 have the same color, and at least a portion of the compensation portion 40 is connected to two adjacent color resistors 60 in the same color resistor row 82.

Specifically, referring to fig. 11, the compensation portion 40 is located in different color resistor rows 82, and the compensation portion 40 is connected to two adjacent color resistors 60 in the color resistor row 82, so that in the process of manufacturing the color resistors 60 and the compensation portion 40, when an unnecessary color resistor layer is removed, a portion of the color resistor layer located between two adjacent color resistors 60 in the color resistor row 82 is reserved as the compensation portion 40, and it is not necessary to separately manufacture the compensation portion 40, which is also beneficial to simplify the manufacturing process of the compensation portion 40 and improve the production efficiency of the color filter substrate 100. It should be noted that, when the compensation portion is connected to any two adjacent color resistors in the color resistor array, the two color resistors connected to the compensation portion may be located at any position on the color filter substrate, which is not specifically limited in this application.

In the above embodiment, the compensation portion 40 is located on the side of the first light-shielding layer 31 away from the first substrate 90, and in an alternative embodiment of the present invention, fig. 12 is another BB' cross-sectional view of the color filter substrate 100 in fig. 3, and at least a part of the compensation portion 40 is located on the surface of the second light-shielding layer 32 away from the first substrate 90.

In some other embodiments of the present application, the compensation portion 40 may be disposed only on a side of the second light shielding layer 32 away from the first substrate 90, or disposed on both a side of the first light shielding layer 31 away from the first substrate 90 and a side of the second light shielding layer 32 away from the first substrate 90, for example, please refer to fig. 12, and the total volume of the introduced compensation portion 40 is only equal to the total volume of the light-transmitting layers filled in the second hollow portion 22 and the third hollow portion 23 in the collimation hole. When at least part of the compensation portion 40 is disposed on the surface of the second light shielding layer 32 away from the first substrate 90, the compensation portion 40 needs to be manufactured separately, but as long as the total volume of the introduced compensation portion 40 and the total volume of the transparent layers filled in each alignment hole and filled in the second hollow portion 22 and the third hollow portion 23 are kept consistent, the warpage of the color film substrate 100 can be improved.

In an alternative embodiment of the present invention, referring to fig. 6, the first light shielding layer 31 and the second light shielding layer 32 have the same thickness along a direction perpendicular to the first substrate 90. When the thicknesses of the first light-shielding layer 31 and the second light-shielding layer 32 are set to be the same, the thicknesses of the light-shielding layers in the color film substrate 100 are kept consistent, so that the first light-transmitting layer 41 and the second light-transmitting layer 42 are filled based on the light-shielding layers with the consistent thicknesses, when the first light-shielding layer 31 and the second light-shielding layer 32 are filled in the second hollow portion 22 and the third hollow portion 23, when orthographic projections of the second hollow portion 22 and the third hollow portion 23 on the first substrate 90 are overlapped and the thicknesses of the first light-shielding layer 31 and the second light-shielding layer 32 are the same, so that the volume of the first light-transmitting layer 41 filled in the second hollow portion 22 and the volume of the second light-transmitting layer 42 filled in the third hollow portion 23 are kept consistent, and therefore, as long as the number of the alignment holes and the number of the second hollow portion 22 and the third hollow portion 23 included in one alignment hole are known, the color film can conveniently calculate the total number of the light-transmitting layers filled in the second hollow portion 22 and the third hollow portion 23 on the color film substrate 100 And the product is obtained, so that the volume calculation difficulty is favorably reduced.

In an alternative embodiment of the present invention, the first light-shielding layer 31 and the second light-shielding layer 32 are formed by using the same mask. Specifically, when the first light-shielding layer 31 and the second light-shielding layer 32 are manufactured by using the same mask, the manufacture of one first light-shielding layer 31 and at least one second light-shielding layer 32 on the color film substrate 100 can be completed by using one mask, which is beneficial to simplifying the production process of the color film substrate 100 and improving the production efficiency of the color film substrate 100. In addition, when the first light-shielding layer 31 and the second light-shielding layer 32 are manufactured by using the same mask, the volumes of the first light-shielding layer 31 and the second light-shielding layer 32 in the color film substrate 100 are kept consistent, and meanwhile, the volumes of the second hollow-out portion 22 and the third hollow-out portion 23 are kept consistent, which is also beneficial to simplifying the calculation process of the total volume of the light-transmitting layers filled in the second hollow-out portion 22 and the third hollow-out portion 23.

Based on the same inventive concept, the present application further provides a display panel 200, fig. 13 is a top view of the display panel 200 provided in the present application, where the display panel 200 includes a fingerprint identification area 201, fig. 14 is a CC 'cross-sectional view of the display panel 200 in fig. 13, that is, a CC' cross-sectional view corresponding to the fingerprint identification area, please refer to fig. 13 and fig. 14, the display panel 200 provided in the present application includes a fingerprint identification unit 202, an array substrate 300 and a color filter substrate 100, where the color filter substrate 100 is the color filter substrate 100 provided in any one of the embodiments;

the array substrate 300 comprises a second substrate 302, and the fingerprint identification unit 202 is located on one side of the second substrate 302 facing the color filter substrate 100 along a direction perpendicular to a plane of the second substrate 302;

the fingerprint identification unit 202 comprises a plurality of photosensitive devices 301 arranged in an array, and a forward projection of the photosensitive devices 301 to a plane where the second substrate 302 is located and a forward projection of the second hollow portion to the second substrate 302 at least partially overlap.

Specifically, in the embodiment of the display panel 200 provided in the present application, reference may be made to the embodiment of the color film substrate 100, and repeated descriptions are not repeated. The display panel 200 of the present application includes a color filter substrate 100 and an array substrate 300 that are disposed opposite to each other, a photosensitive device 301 is introduced on one side of a second substrate 302 of the array substrate 300 facing the color filter substrate 100, an orthographic projection of the photosensitive device 301 to the second substrate 302 overlaps with an orthographic projection of a second hollow portion and a third hollow portion in the color filter substrate 100 to the second substrate 302, and the second hollow portion and the third hollow portion form a collimating aperture structure through which light passes. So, at fingerprint identification's in-process, after the light entering collimation pore structure of touching the main part reflection, collimation pore structure assembles the light, sends sensitization device 301 to be favorable to promoting fingerprint identification's sensitivity.

Based on the same inventive concept, the present application further provides a display device 400, and fig. 15 is a structural diagram of the display device 400 provided in the embodiment of the present application, and referring to fig. 15, the display device 400 includes a display module, which is the display panel 200 provided in the embodiment of the present application. It should be noted that, for the embodiment of the display device 400 provided in the embodiment of the present application, reference may be made to the embodiment of the display panel 200, and repeated descriptions are omitted. The display device 400 provided by the present application may be: any product or component with practical functions such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.

In summary, the color film substrate, the display panel and the display device provided by the invention at least achieve the following beneficial effects:

in the color film substrate, the display panel and the display device provided by the application, orthographic projections of the second hollow parts on the first light shielding layers and the third hollow parts on the second light shielding layers on the first substrate are overlapped, light transmission holes are formed in the color film substrate, the first light shielding layers are filled in the second hollow parts, and the second light shielding layers are filled in the third hollow parts. Particularly, the compensation part is introduced into the shading area, and the total volume of the introduced compensation part is equal to the total volume of the first light shielding layer filled in each second hollow part and the second light shielding layer filled in each third hollow part, so that the compensation part is utilized to balance the volumes of the light transmission layers increased by the first light transmission layer and the second light transmission layer filled in the second hollow part and the third hollow part, the space volumes of materials filled for realizing planarization on the color film substrate in the light transmission hole area (the second light transmission area) and the non-light transmission hole area are kept consistent, the problem of substrate warping caused by volume difference in the prior art is further favorably solved, and the production yield of products is favorably improved.

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. The color film substrate is characterized by comprising a first light-transmitting area, a second light-transmitting area and a shading area, and the color film substrate comprises:

a first substrate;

the first light shielding layer comprises a plurality of first hollow parts and a plurality of second hollow parts, the first hollow parts are positioned in the first light transmission areas, the second hollow parts are positioned in the second light transmission areas, and orthographic projections of the second hollow parts and the second light transmission areas on the first substrate are superposed;

the color resistor is arranged in the first hollow part;

the first light-transmitting layer is positioned on one side, away from the first substrate, of the first light-shielding layer and the color resistor, covers the color resistor and is filled in the second hollow parts, and the total volume of the first light-transmitting layers filled in the second hollow parts is V1;

at least one auxiliary structure, which is located between the color resistor and the first substrate along a direction perpendicular to the first substrate, and/or is located on a side of the first light-transmitting layer away from the first substrate; the auxiliary structure comprises a second light-shielding layer and a second light-transmitting layer, and the second light-transmitting layer is positioned on one side, away from the first substrate, of the second light-shielding layer along a direction perpendicular to the first substrate; the second light-shielding layer comprises a third hollow-out portion located in the second light-transmitting area, orthographic projections of the third hollow-out portion and the second hollow-out portion on the first substrate are overlapped, at least part of a second light-transmitting layer is filled in the third hollow-out portion, and the total volume of the second light-transmitting layers filled in the third hollow-out portions is V2;

and a plurality of compensation portions located at a side of the first light-transmitting layer or the second light-transmitting layer facing the first substrate and located in the light-shielding region, wherein a total volume of the compensation portions is V0, where V0= V1+ V2.

2. The color filter substrate according to claim 1, wherein the color resistors form a plurality of color resistor rows and a plurality of color resistor columns, the color resistors in the same color resistor row are arranged along a first direction, and the color resistors in the same color resistor column are arranged along a second direction;

and forming a collimation hole in the second hollow-out part and the third hollow-out part which are superposed in the orthographic projection of the first substrate, wherein the orthographic projection of the collimation hole on the first substrate is positioned between two adjacent color barriers, the distance between any two collimation holes adjacent in the first direction is equal, and the distance between any two collimation holes adjacent in the second direction is equal.

3. The color filter substrate according to claim 2, wherein the orthographic projection of the compensation portion on the first substrate is located between two adjacent color resist rows, and/or located between two adjacent color resist columns.

4. The color filter substrate according to claim 2, wherein at least part of the compensation portion is located on a surface of the first light shielding layer away from the first substrate.

5. The color filter substrate according to claim 4, wherein the color resistors comprise a first color resistor, a second color resistor and a third color resistor, and at least part of the compensation portion is disposed in the same layer as at least one of the first color resistor, the second color resistor and the third color resistor.

6. The color filter substrate according to claim 4, wherein the compensation portion and the color resistor are not connected to each other.

7. The color filter substrate according to claim 4, wherein at least part of the compensation portion is connected to the color resistor.

8. The color filter substrate of claim 7, wherein the color of each color resistor in the same color resistor row is the same, and at least part of the compensation portion is connected to two adjacent color resistors in the same color resistor row.

9. The color filter substrate according to claim 1, wherein at least part of the compensation portion is located on a surface of the second light shielding layer away from the first substrate.

10. The color filter substrate according to claim 1, wherein the first light-shielding layer and the second light-shielding layer have the same thickness in a direction perpendicular to the first substrate.

11. The color filter substrate according to claim 1, wherein the first light-shielding layer and the second light-shielding layer are formed by using the same mask.

12. A display panel, comprising a fingerprint identification unit, an array substrate and a color film substrate, wherein the array substrate and the color film substrate are oppositely arranged, and the color film substrate is the color film substrate provided by any one of claims 1 to 11;

13. A display device characterized by comprising the display panel according to claim 12.