CN107102471B - Color filter substrate, manufacturing method thereof and liquid crystal panel - Google Patents
Color filter substrate, manufacturing method thereof and liquid crystal panel Download PDFInfo
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- CN107102471B CN107102471B CN201710522670.3A CN201710522670A CN107102471B CN 107102471 B CN107102471 B CN 107102471B CN 201710522670 A CN201710522670 A CN 201710522670A CN 107102471 B CN107102471 B CN 107102471B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
- G02F1/133516—Methods for their manufacture, e.g. printing, electro-deposition or photolithography
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Optical Filters (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a color filter substrate, which comprises: a substrate; a black matrix disposed on the substrate, the black matrix defining a plurality of pixel regions on the substrate; the color photoresist blocks are arranged in the corresponding pixel regions, and photochromic materials are arranged in the color photoresist blocks; wherein, under the irradiation of ultraviolet light with the light quantity not less than a preset light quantity, the photochromic material is transparent; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material is in the same color as that of the color photoresist block corresponding to the photochromic material. The invention also discloses a manufacturing method of the color filter substrate and a liquid crystal panel. The photochromic material is added in the color photoresist block, so that under the irradiation of outdoor strong light, the photochromic material in the color photoresist block is transparent, thereby improving the display brightness and further improving the visibility.
Description
Technical Field
The invention belongs to the technical field of liquid crystal display, and particularly relates to a color filter substrate, a manufacturing method thereof and a liquid crystal panel.
Background
With the development of the optoelectronic and semiconductor technology, the development of flat panel displays (LCD) has been increased, and among many flat panel displays, LCD (Liquid Crystal Display) has been applied to various aspects of production and living due to its excellent characteristics, such as high space utilization efficiency, low power consumption, no radiation, and low electromagnetic interference.
The lcd is generally a backlight type lcd, which includes an lcd panel and a backlight module disposed opposite to each other. The liquid crystal panel has a working principle that liquid crystal molecules are placed in two parallel glass substrates (namely a color filter substrate (CF substrate) and an Array substrate (Array substrate) of a pair of boxes), and the two glass substrates control the liquid crystal molecules to change directions by electrifying the liquid crystal molecules, so that light rays of the backlight module are refracted out to generate an image.
After the LCD is manufactured, the contrast and brightness of the LCD are determined. Thus, when the liquid crystal display is used outdoors, due to the influence of outdoor strong light, and in addition, the contrast and brightness of the liquid crystal display cannot be adjusted, so that the visibility of the liquid crystal display is very poor.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a color filter substrate capable of improving visibility in outdoor strong light, a method for manufacturing the same, and a liquid crystal panel.
According to an aspect of the present invention, there is provided a color filter substrate including: a substrate; a black matrix disposed on the substrate, the black matrix defining a plurality of pixel regions on the substrate; the color photoresist blocks are arranged in the corresponding pixel regions, and photochromic materials are arranged in the color photoresist blocks; wherein, under the irradiation of ultraviolet light with the light quantity not less than a preset light quantity, the photochromic material is transparent; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material is in the same color as that of the color photoresist block corresponding to the photochromic material.
Optionally, the plurality of color resist blocks includes a red resist block, a blue resist block, and a green resist block.
Optionally, under the irradiation of ultraviolet light with the light quantity not less than the preset light quantity, the photochromic material in the red light resistance block is transparent; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material in the red light resistance block is red.
Optionally, under the irradiation of ultraviolet light with the light quantity not less than the preset light quantity, the photochromic material in the green light resistance block is transparent; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material in the green light resistance block is green.
Optionally, under the irradiation of ultraviolet light with the light quantity not less than the preset light quantity, the photochromic material in the blue light resistance block is transparent; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material in the blue light resistance block is blue.
According to another aspect of the present invention, there is also provided a liquid crystal panel, including an array substrate and a color filter substrate, which are arranged to a cell, wherein the color filter substrate is the above color filter substrate.
According to another aspect of the present invention, there is provided a method for manufacturing a color filter substrate, including the steps of: providing a substrate; manufacturing and forming a black matrix on the substrate, wherein the black matrix defines a plurality of pixel areas on the substrate; forming a color photoresist block in each pixel region; injecting a photochromic material into the color light resistance block; wherein, under the irradiation of ultraviolet light with the light quantity not less than a preset light quantity, the photochromic material is transparent; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material is in the same color as that of the color photoresist block corresponding to the photochromic material.
Optionally, at least one of the color photoresist blocks is a red photoresist block, wherein under the irradiation of ultraviolet light with the light quantity not less than the preset light quantity, the photochromic material in the red photoresist block is transparent; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material in the red light resistance block is red.
Further, at least one color photoresist block is a green photoresist block, wherein under the irradiation of ultraviolet light with the light quantity not less than the preset light quantity, the photochromic material in the green photoresist block is transparent; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material in the green light resistance block is green.
Further, at least one color photoresist block is a blue photoresist block, wherein under the irradiation of ultraviolet light with the light quantity not less than the preset light quantity, the photochromic material in the blue photoresist block is transparent; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material in the blue light resistance block is blue.
The invention has the beneficial effects that: the photochromic material is added in the color photoresist block, so that under the irradiation of outdoor strong light, the photochromic material in the color photoresist block is transparent, thereby improving the display brightness and further improving the visibility.
Drawings
The above and other aspects, features and advantages of embodiments of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural view of a color filter substrate according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a liquid crystal panel according to an embodiment of the present invention;
fig. 3A to 3D are process diagrams of a color filter substrate according to an embodiment of the invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, these embodiments are provided to explain the principles of the invention and its practical application to thereby enable others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to the particular use contemplated.
In the drawings, the thickness of layers and regions are exaggerated for clarity of the devices. It will be understood that when an element is referred to as being "on" or "over" another element, it can be directly on the other element or intervening elements may also be present.
Fig. 1 is a schematic structural view of a color filter substrate according to an embodiment of the present invention.
Referring to fig. 1, a color filter substrate 100 according to an embodiment of the present invention includes: the color filter comprises a first substrate 110, a black matrix 120 and a plurality of color photoresist blocks. It should be understood that the color filter substrate 100 may also include other suitable types of elements.
Specifically, the first substrate 110 may be, for example, a transparent glass substrate or a resin substrate, but the present invention is not limited thereto.
The black matrix 120 is disposed on the first substrate 110. The black matrix 120 defines a plurality of pixel areas PX on the first substrate 110. Generally, the pixel regions PX are arranged in an array.
A plurality of color resist blocks are disposed on the first substrate 110. Each color photoresist block is located in its corresponding one of the pixel areas PX.
In the present embodiment, the plurality of color resist blocks include a red resist block 130A, a green resist block 130B, and a blue resist block 130C, but the present invention is not limited thereto, and for example, the plurality of color resist blocks 130 may further include resist blocks of other suitable colors, such as white. Further, the red light block 130A, the green light block 130B, and the blue light block 130C are the same in number, and may be arranged in an array of light block units with the red light block 130A, the green light block 130B, and the blue light block 130C.
In this embodiment, each color resist block has a photochromic material 140 therein. Here, the photochromic material 140 is transparent under the irradiation of ultraviolet light having a light amount not less than a predetermined light amount; and under the irradiation of the ultraviolet light with the light quantity less than the predetermined light quantity, the photochromic material 140 presents the same color as that of the corresponding color photoresist block.
Further, under irradiation of ultraviolet light having a light amount not less than the predetermined light amount, the photochromic material 140 in the red light blocking block 130A is transparent; the photochromic material 140 in the red light block 130A is colored red by the irradiation of ultraviolet light having a light amount smaller than the predetermined light amount.
Further, the photochromic material 140 in the green resist block 130B is transparent under irradiation of ultraviolet light having a light amount not less than the predetermined light amount; the photochromic material 140 in the green resist block 130B is colored green under the irradiation of ultraviolet light having a light amount smaller than the predetermined light amount.
In addition, under the irradiation of ultraviolet light with the light quantity not less than the predetermined light quantity, the photochromic material 140 in the blue light block 130C is transparent; under the irradiation of the ultraviolet light having the light amount smaller than the predetermined light amount, the photochromic material 140 in the blue light block 130C is blue.
Thus, under the irradiation of outdoor strong light, the photochromic material in the color photoresist block is transparent, thereby improving the display brightness and further improving the visibility.
Fig. 2 is a schematic structural diagram of a liquid crystal panel according to an embodiment of the present invention.
Referring to fig. 2, the liquid crystal panel according to the embodiment of the present invention includes a color filter substrate 100, an array substrate 200, and a liquid crystal 300, wherein the color filter substrate 100 and the array substrate 200 are arranged in a cell, and the liquid crystal 300 is filled between the color filter substrate 100 and the array substrate 200.
Specifically, the array substrate 200 according to an embodiment of the present invention includes: a second substrate 210, a plurality of thin film transistors 220, an insulating protective layer 230, and a pixel electrode 240.
The second substrate 210 may be, for example, a transparent glass substrate or a resin substrate, but the present invention is not limited thereto.
A plurality of thin film transistors 220 are arranged in an array on the second substrate 210, wherein one thin film transistor 220 corresponds to one pixel area PX, that is, one thin film transistor 220 supplies a voltage to the liquid crystal 300 in the corresponding pixel area PX. As an embodiment of the present invention, each thin film transistor 220 includes: a gate electrode 221 formed on the second substrate 210, a gate insulating layer 222 formed on the gate electrode 221 and the second substrate 210, a semiconductor layer (or active layer) 223 formed on the gate insulating layer 222 and corresponding to the gate electrode 221, and a source electrode 224 and a drain electrode 225 formed on the semiconductor layer 223 and the gate insulating layer 222, wherein the source electrode 224 and the drain electrode 225 are respectively in contact with two ends of the semiconductor layer 223. Note that the structure of the thin film transistor in the present invention is not limited to the structure of the thin film transistor 220 shown in fig. 2, and a thin film transistor having another structure may be used.
In the present embodiment, the semiconductor layer 223 is preferably made of amorphous silicon (a-Si).
An insulating protection layer 230 is formed on the source electrode 224, the drain electrode 225, the semiconductor layer 223, and the gate insulating layer 222. A via hole 231 is formed on the insulating protection layer 230 above the drain electrode 225.
The pixel electrode 240 is formed on the insulating protection layer 230, wherein the pixel electrode 240 contacts the drain electrode 225 through the via 231.
It is to be understood that the array substrate 200 of the present embodiment may further include a gate line formed simultaneously with the gate electrode 221, a data line formed simultaneously with the source and drain electrodes 224 and 225, and other suitable types of elements.
In addition, the pixel electrode 240 is made of one or more of indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, and indium germanium zinc oxide, but the present invention is not limited thereto.
The black matrix 120 of the color filter substrate 100 is disposed opposite to the thin film transistors 220, that is, a projection of each thin film transistor 220 on the black matrix 120 is entirely located within the black matrix 120.
Fig. 3A to 3D are process diagrams of a color filter substrate according to an embodiment of the invention.
The method for manufacturing the color filter substrate according to the embodiment of the invention comprises the following steps:
the method comprises the following steps: referring to fig. 3A, a first substrate 110 is provided. Here, the first substrate 110 may be, for example, a transparent glass substrate or a resin substrate, but the present invention is not limited thereto.
Step two: referring to fig. 3B, a black matrix 120 is formed on the first substrate 110, and the black matrix 120 defines a plurality of pixel areas PX on the first substrate 110. Generally, the pixel regions PX are arranged in an array.
Step three: referring to fig. 3C, a plurality of color photoresist blocks are formed on the first substrate 110, and each color photoresist block is located in a corresponding one of the pixel regions PX.
In the present embodiment, the plurality of color resist blocks include a red resist block 130A, a green resist block 130B, and a blue resist block 130C, but the present invention is not limited thereto, and for example, the plurality of color resist blocks 130 may further include resist blocks of other suitable colors, such as white. Further, the red light block 130A, the green light block 130B, and the blue light block 130C are the same in number, and may be arranged in an array of light block units with the red light block 130A, the green light block 130B, and the blue light block 130C.
Step three: referring to fig. 3D, a photochromic material 140 is injected into each color photoresist block. Here, the photochromic material 140 is transparent under the irradiation of ultraviolet light having a light amount not less than a predetermined light amount; and under the irradiation of the ultraviolet light with the light quantity less than the predetermined light quantity, the photochromic material 140 presents the same color as that of the corresponding color photoresist block.
Further, under irradiation of ultraviolet light having a light amount not less than the predetermined light amount, the photochromic material 140 in the red light blocking block 130A is transparent; the photochromic material 140 in the red light block 130A is colored red by the irradiation of ultraviolet light having a light amount smaller than the predetermined light amount. The photochromic material 140 in the green resist block 130B is transparent under the irradiation of ultraviolet light having a light quantity not less than the predetermined light quantity; the photochromic material 140 in the green resist block 130B is colored green under the irradiation of ultraviolet light having a light amount smaller than the predetermined light amount. Under the irradiation of ultraviolet light with the light quantity not less than the predetermined light quantity, the photochromic material 140 in the blue light block 130C is transparent; under the irradiation of the ultraviolet light having the light amount smaller than the predetermined light amount, the photochromic material 140 in the blue light block 130C is blue.
In summary, according to the embodiments of the present invention, the color resist block is added with the photochromic material, so that under the irradiation of strong outdoor light, the photochromic material in the color resist block is transparent, thereby improving the display brightness and further improving the visibility.
While the invention has been shown and described with reference to certain embodiments, those skilled in the art will understand that: various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. A color filter substrate, comprising:
a substrate;
a black matrix disposed on the substrate, the black matrix defining a plurality of pixel regions on the substrate;
the color photoresist blocks are arranged in the corresponding pixel regions, and photochromic materials are arranged in the color photoresist blocks;
wherein, under the irradiation of ultraviolet light with the light quantity not less than a preset light quantity, the photochromic material is transparent; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material is in the same color as that of the color photoresist block corresponding to the photochromic material.
2. The color filter substrate of claim 1, wherein the plurality of color resist blocks comprises a red resist block, a blue resist block, and a green resist block.
3. The color filter substrate according to claim 2, wherein the photochromic material in the red resist block is transparent under irradiation of ultraviolet light having a light amount not less than the predetermined light amount; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material in the red light resistance block is red.
4. The color filter substrate according to claim 2, wherein the photochromic material in the green resist block is transparent under irradiation of ultraviolet light having a light amount not less than the predetermined light amount; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material in the green light resistance block is green.
5. The color filter substrate according to claim 2, wherein the photochromic material in the blue resist block is transparent under irradiation of ultraviolet light having a light amount not less than the predetermined light amount; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material in the blue light resistance block is blue.
6. A liquid crystal panel comprising an array substrate and a color filter substrate provided in a pair of cells, wherein the color filter substrate is the color filter substrate according to any one of claims 1 to 5.
7. A method for manufacturing a color filter substrate is characterized by comprising the following steps:
providing a substrate;
manufacturing and forming a black matrix on the substrate, wherein the black matrix defines a plurality of pixel areas on the substrate;
forming a color photoresist block in each pixel region;
injecting a photochromic material into the color light resistance block;
wherein, under the irradiation of ultraviolet light with the light quantity not less than a preset light quantity, the photochromic material is transparent; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material is in the same color as that of the color photoresist block corresponding to the photochromic material.
8. The method of claim 7, wherein at least one of the color resist blocks is a red resist block, and wherein the photochromic material in the red resist block is transparent under the irradiation of ultraviolet light having a light amount not less than the predetermined light amount; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material in the red light resistance block is red.
9. The method of claim 8, wherein at least one of the color resist blocks is a green resist block, and wherein the photochromic material in the green resist block is transparent under the irradiation of ultraviolet light having a light amount not less than the predetermined light amount; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material in the green light resistance block is green.
10. The method of claim 9, wherein at least one of the color resist blocks is a blue resist block, wherein the photochromic material in the blue resist block is transparent under the irradiation of ultraviolet light having a light quantity not less than the predetermined light quantity; under the irradiation of ultraviolet light with the light quantity smaller than the preset light quantity, the photochromic material in the blue light resistance block is blue.
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| CN201710522670.3A CN107102471B (en) | 2017-06-30 | 2017-06-30 | Color filter substrate, manufacturing method thereof and liquid crystal panel |
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| CN201710522670.3A CN107102471B (en) | 2017-06-30 | 2017-06-30 | Color filter substrate, manufacturing method thereof and liquid crystal panel |
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| CN109240016A (en) * | 2018-09-30 | 2019-01-18 | 广州奥翼材料与器件研究院有限公司 | A kind of electrophoretic display device (EPD) |
| CN109407390B (en) * | 2018-11-28 | 2020-12-04 | 武汉华星光电技术有限公司 | Liquid crystal display panel and manufacturing method thereof |
| CN111596495B (en) * | 2020-06-10 | 2023-04-14 | 武汉京东方光电科技有限公司 | Array substrate, liquid crystal display panel and preparation method thereof |
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