CN110928023A

CN110928023A - Color film substrate and display panel

Info

Publication number: CN110928023A
Application number: CN201911170213.8A
Authority: CN
Inventors: 王威
Original assignee: Wuhan China Star Optoelectronics Technology Co Ltd
Current assignee: Wuhan China Star Optoelectronics Technology Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-03-27

Abstract

The color film substrate comprises a black matrix and a color filter, wherein the black matrix comprises a plurality of groups of openings, the plurality of groups of openings are sequentially arranged, each group of openings comprises a first opening, a second opening and a third opening, the color filter comprises a plurality of groups of pixel layers, each group of pixel layers comprises a blue sub-pixel layer, a red sub-pixel layer and a green sub-pixel layer, the blue sub-pixel layer, the red sub-pixel layer and the green sub-pixel layer respectively correspond to the first opening, the second opening and the third opening, and the black matrix can widen towards the first opening, the second opening and the third opening. By adopting the color film substrate provided by the embodiment of the application, when the array substrate and the color film substrate are not accurately combined, the color film substrate can be prevented from generating color cast.

Description

Color film substrate and display panel

Technical Field

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

Background

As the electronic device industry grows faster and faster, more and more companies are added to the industry, more and more products are purchased by consumers, and the competition of the industry becomes more and more intense. Meanwhile, the quality demand and experience requirements of the product for consumers are getting higher and higher. Our products also require more and more precision. The precision is also required to be improved, and more precise technology is also required to monitor the quality of the product. In a display panel of an electronic device, an array substrate and a color film substrate need to be accurately aligned. Therefore, color cast of the color film substrate can be avoided, in the prior art, the assembling precision is usually limited by the capability of a machine, and the manufacturing process is fluctuated. The improvement of the accuracy of the stack is greatly limited.

Therefore, it is an urgent need to solve the technical problem of color shift of a color filter substrate.

Disclosure of Invention

The embodiment of the application provides a color film substrate and a display panel. The color deviation of the color film substrate can be avoided.

An embodiment of the present application provides a color film substrate, including:

the black matrix comprises a plurality of groups of openings which are arranged in sequence, wherein each group of openings comprises a first opening, a second opening and a third opening;

the color filter comprises a plurality of groups of pixel layers, each group of pixel layers comprises a blue sub-pixel layer, a red sub-pixel layer and a green sub-pixel layer, and the blue sub-pixel layer, the red sub-pixel layer and the green sub-pixel layer respectively correspond to the first opening, the second opening and the third opening;

wherein the black matrix may be widened toward the first, second, and third openings.

In some embodiments, the black matrix widens towards the third opening, and a black matrix width between the second opening and the third opening is greater than a black matrix width between the first opening and the second opening.

In some embodiments, the black matrix widens towards the second opening, and a black matrix width between the first opening and the second opening is greater than a black matrix width between the second opening and the third opening.

In some embodiments, the blue subpixel layer is disposed within the first opening, the red subpixel layer is disposed within the second opening, and the green subpixel layer is disposed within the third opening.

In some embodiments, further comprising a glass substrate, the black matrix disposed on the glass substrate.

In some embodiments, a first transparent layer is disposed on the glass substrate and located in the first opening, the second opening, and the blue sub-pixel layer, the red sub-pixel layer, and the green sub-pixel layer are disposed on the first transparent layer.

In some embodiments, a second transparent layer is disposed between the blue, red, and green sub-pixel layers.

In some embodiments, sub-black matrices are embedded within the first, second, and third openings to widen the black matrix.

The embodiment of the application further provides a display panel, which comprises a color film substrate and an array substrate, wherein the array substrate is provided with a first surface and a second surface which are oppositely arranged, the color film substrate is arranged on the first surface, and the color film substrate is the color film substrate.

In some embodiments, the second surface is further provided with a backlight module for providing backlight.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below.

Fig. 1 is a schematic structural diagram of a color film substrate in an embodiment of the present application.

Fig. 2 is another schematic structural diagram of a color filter substrate in the embodiment of the present application.

Fig. 3 is a schematic structural diagram of a display panel in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a color film substrate and a display panel. The color filter substrate according to the embodiment of the present application is described in detail below.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a color film substrate in an embodiment of the present application. The color filter substrate 10 provided in this application includes a black matrix 11 and a color filter 12, where the black matrix 11 includes a plurality of sets of openings 111, the plurality of sets of openings 111 are sequentially arranged, each set of opening 111 includes a first opening 111a, a second opening 111b, and a third opening 111c, the color filter 12 includes a plurality of sets of pixel layers, each set of pixel layers includes a blue sub-pixel layer 121a, a red sub-pixel layer 121b, and a green sub-pixel layer 121c, the blue sub-pixel layer 121a, the red sub-pixel layer 121b, and the green sub-pixel layer 121c respectively correspond to the first opening 111a, the second opening 111b, and the third opening 111c, and the black matrix 11 may be widened toward the first opening 111a, the second opening 111b, and the third opening 111 c.

It should be noted that the black matrix 11 may be formed by depositing and patterning a light-shielding material, and the black matrix 11 may increase the contrast of the display panel 100, and details about the preparation method of the black matrix 11 are not repeated in this embodiment.

In addition, the color filter 12 may also be formed by depositing corresponding materials and then patterning, wherein the blue, red, and

green sub-pixel layers

121a, 121b, and 121c may be respectively prepared from blue, red, and green resins, wherein the blue, red, and green resins are all preferably photosensitive materials.

In addition, the black matrix 11 may be widened toward the first, second, and

third openings

111a, 111b, and 111 c. When the black matrix 11 is widened, the widths of the blue, red, and

green sub-pixel layers

121a, 121b, and 121c are not changed.

The display principle of the display is that circularly polarized light emitted by the backlight source is changed into linearly polarized light through the polarizer. When linearly polarized light passes through the liquid crystal whose deflection is controlled by a TFT (thin film transistor switch), the polarization direction is deflected, and the light passes through another vertical polarizing plate smoothly, and the display region is lit. Since light also passes through the color filter substrate 10 at the same time. Thus forming the corresponding color. As we see when the red subpixel layer 121b is lit, is red light. In general, the relative positions of the color filter substrate 10 and the array substrate 20 are not precisely aligned, because there is a deviation in the process of assembling the color filter substrate and the array substrate. When the relative position of the color filter substrate 10 and the array substrate 20 is shifted. The color filter substrate 10 is shifted to the left with respect to the array substrate 20. At this time, when a TFT (thin film transistor switch) switch corresponding to the red color resistor is turned on, light emitted from the backlight passes through the display panel 100, and the red sub-pixel layer 121b is in a lit state, but since the color filter substrate 10 is shifted with respect to the array substrate 20, the color resistor located at the side of the red sub-pixel layer 121b is also lit. The human eye does not see the pure red color because of the other colors of light inside. I.e. a color shift is produced. In the embodiment of the present invention, when color shift occurs, the black matrix 11 can be widened to block the traitorous color blockage of the blue sub-pixel layer 121a, the red sub-pixel layer 121b and the green sub-pixel layer 121c from being lighted, so that the color shift is avoided and the quality of the display panel 100 is improved.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Wherein the black matrix 11 widens toward the third opening 111c, and a width of the black matrix 11 between the second opening 111b and the third opening 111c is greater than a width of the black matrix 11 between the first opening 111a and the second opening 111 b.

When the red sub-pixel layer 121b is turned on, the color filter substrate 10 is shifted from the array substrate 20, and the green sub-pixel layer 121c located on the right side of the red sub-pixel layer is also turned on. The human eye now sees no pure red because of the green light inside. While red and green are superimposed as yellow. Therefore, human eyes can see that the picture is yellow, namely color cast is generated. When the human eye sees the picture yellow, the black matrix 11 can be widened toward the third opening 111c, and the width of the black matrix 11 between the second opening 111b and the third opening 111c is larger than the width of the black matrix 11 between the first opening 111a and the second opening 111 b. Thus, the black matrix 11 can block light from passing through the green sub-pixel layer 121c, and ensure that the human eyes see pure color, so that the human eyes can avoid that the picture seen by the human eyes is yellow, the color cast can be avoided, and the display quality of the display panel 100 is improved.

Wherein the black matrix 11 widens toward the second opening 111b, and a width of the black matrix 11 between the first opening 111a and the second opening 111b is greater than a width of the black matrix 11 between the second opening 111b and the third opening 111 c.

When the blue subpixel layer 121a is turned on, the color filter substrate 10 is shifted from the array substrate 20, and the red subpixel layer 121b located on the right side of the blue subpixel layer 121a is also turned on. The human eye does not see the pure blue color because of the red color. While blue and red are superimposed to violet. Therefore, human eyes can see that the picture is purple, namely, color cast is generated. When human eyes see that the picture is purple, the black matrix 11 may be widened toward the second opening 111b, and the width of the black matrix 11 between the first opening 111a and the second opening 111b is greater than the width of the black matrix 11 between the second opening 111b and the third opening 111 c. Thus, the black matrix 11 can block light from passing through the red sub-pixel layer 121b, and ensure that the human eyes see pure colors, so that the phenomenon that the pictures seen by the human eyes are purple is avoided, the generation of color cast is avoided, and the display quality of the display panel 100 is improved.

The blue sub-pixel layer 121a is disposed in the first opening 111a, the red sub-pixel layer 121b is disposed in the second opening 111b, and the green sub-pixel layer 121c is disposed in the third opening 111 c.

It should be noted that the blue sub-pixel layer 121a, the red sub-pixel layer 121b, and the green sub-pixel layer 121c are respectively disposed in the first opening 111a, the second opening 111b, and the third opening 111c, so that the thickness of the color filter substrate 10 can be reduced, and the thickness of the display panel 100 can be reduced.

The sub-black matrix 15 is embedded in the first opening 111a, the second opening 111b, and the third opening 111c to widen the black matrix 11.

When the color filter substrate 10 is color shifted, the sub-black matrix 15 is embedded in the black matrix 11 to widen the black matrix 11. Of course, it is also possible to widen the black matrix 11 by attaching the black matrix to the glass substrate 12, or to widen the black matrix 11 during the production process. In the embodiment of the present application, how to widen the black matrix 11 is not described in detail.

Referring to fig. 2, fig. 2 is another schematic structural diagram of a color film substrate in the embodiment of the present disclosure. The color film substrate 10 further comprises a glass substrate 12, and the black matrix 11 is arranged on the glass substrate 12.

Note that the black matrix 11 may be formed by depositing a light shielding material on the selected glass substrate 12 and then patterning the deposited light shielding material.

A first transparent layer 13 is disposed on the glass substrate 12, the first transparent layer 13 is disposed in the first opening 111a, the second opening 111b and the second opening 111b, and the blue sub-pixel layer 121a, the red sub-pixel layer 121b and the green sub-pixel layer 121c are disposed on the first transparent layer 13.

It should be noted that the first transparent layer 13 may be fully covered with the corresponding opening 111, for example, the first transparent layer 13 may be fully covered with the first opening 111a, the second opening 111b and the third opening 111c, and in addition, the first transparent layer 13 may be made of a transparent material. An organic resin material such as polymethyl methacrylate or ITO. It can be understood that by disposing the first transparent layers 13 in the corresponding openings 111, the angular segment difference between the black matrix 11 and the color filter 12 can be better eliminated, thereby improving the display quality of the display panel 100.

A second transparent layer 14 is disposed between the blue sub-pixel layer 121a, the red sub-pixel layer 121b and the green sub-pixel layer 121 c.

It should be noted that the second transparent layer 14 may be made of a transparent material such as an organic resin material such as polymethyl methacrylate or ITO. It will be appreciated that by providing the second transparent layer 14, colour mixing between the coloured sub-pixel layers is effectively prevented.

The color filter substrate 10 provided in this application includes a black matrix 11 and a color filter 12, where the black matrix 11 includes a plurality of sets of openings 111, the plurality of sets of openings 111 are sequentially arranged, each set of opening 111 includes a first opening 111a, a second opening 111b, and a third opening 111c, the color filter 12 includes a plurality of sets of pixel layers, each set of pixel layers includes a blue sub-pixel layer 121a, a red sub-pixel layer 121b, and a green sub-pixel layer 121c, the blue sub-pixel layer 121a, the red sub-pixel layer 121b, and the green sub-pixel layer 121c respectively correspond to the first opening 111a, the second opening 111b, and the third opening 111c, and the black matrix 11 may be widened toward the first opening 111a, the second opening 111b, and the third opening 111 c. By adopting the color film substrate 10 of the embodiment of the application, when the pair of the array substrate 20 and the color film substrate 10 is not accurate enough, the color film substrate 10 can be prevented from generating color cast.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure. The display panel 100 includes a color film substrate 10 and an array substrate 20, where the array substrate 20 has a first surface and a second surface opposite to each other, the color film substrate 10 is disposed on the first surface, and the color film substrate 10 is the color film substrate 10. The color filter substrate 10 is described in detail in the above embodiments. In the embodiment of the present application, details of the color film substrate 10 are not repeated.

The color filter substrate 10 is shifted to the left with respect to the array substrate 20. At this time, when a TFT (thin film transistor switch) switch corresponding to the red color resistor is turned on, light emitted from the backlight passes through the display panel 100, and the red sub-pixel layer is in a lit state, but since the color filter substrate 10 is shifted with respect to the array substrate 20, the color resistor located at the side of the red sub-pixel layer is also lit. The human eye does not see the pure red color because of the other colors of light inside. I.e. a color shift is produced. In the embodiment of the present invention, when color shift occurs, the black matrix 11 can be widened to block the traitorous color blockage of the blue sub-pixel layer 121a, the red sub-pixel layer 121b and the green sub-pixel layer 121c from being lighted, so that the color shift is avoided and the quality of the display panel 100 is improved.

The second surface is further provided with a backlight module 30, and the backlight module 30 is used for providing backlight.

The color film substrate and the display panel provided by the embodiment of the application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A color film substrate is characterized by comprising:

2. The color filter substrate according to claim 1, wherein the black matrix widens towards the third opening, and a width of the black matrix between the second opening and the third opening is greater than a width of the black matrix between the first opening and the second opening.

3. The color filter substrate according to claim 1, wherein the black matrix widens towards the second opening, and a width of the black matrix between the first opening and the second opening is greater than a width of the black matrix between the second opening and the third opening.

4. The color filter substrate according to claim 1, wherein the blue subpixel layer is disposed in the first opening, the red subpixel layer is disposed in the second opening, and the green subpixel layer is disposed in the third opening.

5. The color filter substrate according to claim 1, further comprising a glass substrate, wherein the black matrix is disposed on the glass substrate.

6. The color filter substrate according to claim 5, wherein a first transparent layer is disposed on the glass substrate, the first transparent layer is located in the first opening, the second opening, and the blue sub-pixel layer, the red sub-pixel layer, and the green sub-pixel layer are disposed on the first transparent layer.

7. The color filter substrate according to claim 6, wherein a second transparent layer is disposed between the blue sub-pixel layer, the red sub-pixel layer and the green sub-pixel layer.

8. The color filter substrate according to any one of claims 1 to 7, wherein sub-black matrices are embedded in the first opening, the second opening, and the third opening to widen the black matrix.

9. A display panel, comprising a color filter substrate and an array substrate, wherein the array substrate has a first surface and a second surface which are oppositely arranged, the color filter substrate is arranged on the first surface, and the color filter substrate is the color filter substrate according to any one of claims 1 to 8.

10. The display panel according to claim 9, wherein the second surface is further provided with a backlight module, and the backlight module is used for providing backlight.