CN107505760B - Pixel structure of array substrate and liquid crystal display panel - Google Patents

Pixel structure of array substrate and liquid crystal display panel Download PDF

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Publication number
CN107505760B
CN107505760B CN201710841425.9A CN201710841425A CN107505760B CN 107505760 B CN107505760 B CN 107505760B CN 201710841425 A CN201710841425 A CN 201710841425A CN 107505760 B CN107505760 B CN 107505760B
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sub
pixel
color
area
layer
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CN107505760A (en
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单剑锋
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HKC Co Ltd
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HKC Co Ltd
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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
    • G02F1/133512—Light shielding layers, e.g. black matrix

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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)
  • Liquid Crystal (AREA)
  • Optical Filters (AREA)

Abstract

The embodiment of the invention provides a pixel structure of an array substrate and a liquid crystal display panel, which are used for improving color cast, wherein the pixel structure of the array substrate comprises a plurality of pixel units arranged in an array manner, each pixel unit comprises a plurality of sub-pixels, and each sub-pixel comprises: the pixel structure comprises a first sub-pixel region and a second sub-pixel region, wherein the area of the first region of the first sub-pixel region is larger than the area of the second region of the second sub-pixel region.

Description

Pixel structure of array substrate and liquid crystal display panel
Technical Field
The embodiment of the invention relates to the field of liquid crystal display, in particular to a pixel structure of an array substrate and a liquid crystal display panel.
Background
The Liquid Crystal display panel is generally composed of a Color Filter (CF) substrate, a Thin Film Transistor (TFT) array substrate, and a Liquid Crystal Layer (LC Layer) disposed between the two substrates, and the Liquid Crystal display panel operates by applying a driving voltage to the two glass substrates to control the rotation of Liquid Crystal molecules in the Liquid Crystal Layer, so as to refract light from the backlight module to generate a picture.
Currently, the wide viewing angle lcd panel can be of the following types: a Multi-domain Vertical Alignment (MVA) type, an In-Plane Switching (IPS) type, and a Fringe Field Switching (FFS) type.
A Multi-domain Vertical Alignment (MVA) lcd divides a pixel into a plurality of regions, and uses protrusions or a specific pattern structure to tilt the liquid crystal molecules in different regions in different directions, so as to achieve the effect of wide viewing angle and improved transmittance, but such a design causes gray scale whitening or color shift.
In the IPS mode or the FFS mode, the liquid crystal molecules are driven accordingly in a direction parallel to the plane of the substrates by applying an electric field having a component substantially parallel to the substrates. The IPS mode liquid crystal display panel and the FFS mode liquid crystal display panel have advantages of wide viewing angle. However, since the wavelength of blue light is shorter, the phase difference (Retardation) required to achieve the same Transmittance (Transmittance) is smaller than that of red light and green light, and the Transmittance-voltage (V-T) curves of red light, green light and blue light are different; in addition, red light, green light and blue light have different transmittances on the surfaces of a Polyimide (PI) film, a planarization layer (PFA), a coating layer (OC) and the like in the panel, which also causes a color shift problem.
Therefore, there is a need to provide a design that improves the color shift problem.
Disclosure of Invention
The embodiment of the invention provides a pixel structure of an array substrate and a liquid crystal display panel, which can solve the problem of gray scale whitening or color cast at a wide viewing angle.
In order to achieve the above object, an embodiment of the present invention provides a pixel structure of an array substrate, including a plurality of pixel units arranged in an array, each pixel unit including a plurality of sub-pixels, each sub-pixel including: the pixel structure comprises a first sub-pixel region and a second sub-pixel region, wherein the area of the first region of the first sub-pixel region is larger than the area of the second region of the second sub-pixel region.
In one embodiment, the ratio of the area of the first region to the area of the second region is between 1.5 and 2.3.
In one embodiment, the plurality of sub-pixels are red, green, and blue sub-pixels.
In one embodiment, the plurality of sub-pixels are a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a yellow sub-pixel; alternatively, the first and second electrodes may be,
the plurality of sub-pixels are a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel.
Another embodiment of the invention provides a liquid crystal display panel, which includes an array substrate and a color filter layer; the array substrate includes: the array substrate comprises a common line, a data line, a scanning line and a pixel structure of the array substrate, wherein the pixel structure of the array substrate is coupled with the data line and the scanning line respectively; the color filter layer is arranged on the array substrate.
In one embodiment, the color filter layer includes: a black matrix layer and a color resist layer; the black matrix layer is arranged on the array substrate; the color resistance layer is arranged on the array substrate and the black matrix layer, the color resistance layer comprises a plurality of color filter layers with different colors, each color filter layer comprises a plurality of color resistors, each color resistor comprises a first sub color resistance area and a second sub color resistance area, the first sub color resistance area is provided with a first thickness, the second sub color resistance area is provided with a second thickness, the first thickness is smaller than the second thickness, the first sub color group area is aligned with the first sub pixel area, and the second sub color resistance area is aligned with the second sub pixel area.
In one embodiment, a difference in thickness between the first thickness and the second thickness is between 0.3 microns and 0.5 microns.
In one embodiment, the color filter layer further comprises: and the conducting layer is arranged on the color resistance layer.
In one embodiment, the color filter layer further comprises: and the protective layer is arranged between the color resistance layer and the conductive layer.
Another embodiment of the invention provides a liquid crystal display panel, which includes an array substrate and a color filter layer; the array substrate includes: the array substrate comprises a common line, a data line, a scanning line and a pixel structure of the array substrate, wherein the pixel structure of the array substrate is coupled with the data line and the scanning line respectively; the pixel structure of the array substrate comprises a plurality of pixel units arranged in an array, each pixel unit comprises a plurality of sub-pixels, and each sub-pixel comprises: the pixel structure comprises a first sub-pixel region and a second sub-pixel region, wherein the first region area of the first sub-pixel region is larger than the second region area of the second sub-pixel region, and the ratio of the first region area to the second region area is between 1.5 and 2.3; the colored filter layer set up in on the array substrate, the colored filter layer includes: a black matrix layer and a color resist layer; the black matrix layer is arranged on the array substrate; the color resistance layer is arranged on the array substrate and the black matrix layer, the color resistance layer comprises a plurality of color filter layers with different colors, each color filter layer comprises a plurality of color resistors, each color resistor comprises a first sub color resistance area and a second sub color resistance area, the first sub color resistance area is provided with a first thickness, the second sub color resistance area is provided with a second thickness, the first thickness is smaller than the second thickness, the first sub color group area is aligned with the first sub pixel area, the second sub color resistance area is aligned with the second sub pixel area, and the thickness difference between the first thickness and the second thickness is 0.3-0.5 micron.
According to the pixel structure of the array substrate and the liquid crystal display panel provided by the embodiment of the invention, each pixel unit in the plurality of pixel units arranged in an array comprises a plurality of sub-pixels, each sub-pixel comprises two sub-pixel regions, and the two sub-pixel regions have different areas, so that the bright area and the dark area of the light-transmitting region of the pixel can be better controlled, and the effect of low color cast is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic view of a liquid crystal display panel according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a color resistor according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for manufacturing a color filter layer according to an embodiment of the invention;
FIG. 4 is a method for forming a color filter layer according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for fabricating a color filter layer according to another embodiment of the invention;
fig. 6 to 15 are schematic views illustrating a manufacturing process of the color filter layer;
fig. 16 is a flowchart illustrating a method for fabricating a liquid crystal display panel according to an embodiment of the invention;
fig. 17 is a schematic diagram of a sub-pixel according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc. refer to directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
The drawings and description are to be regarded as illustrative in nature, and not as restrictive. In the drawings, elements having similar structures are denoted by the same reference numerals. In addition, the size and thickness of each component shown in the drawings are arbitrarily illustrated for understanding and ease of description, but the present invention is not limited thereto.
In the drawings, the thickness of layers, films, panels, regions, etc. are exaggerated for clarity. In the drawings, the thickness of some layers and regions are exaggerated for understanding and convenience of description. It will be understood that when an element such as a layer, film, region or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present.
In addition, in the description, unless explicitly described to the contrary, the word "comprise" will be understood to mean that the recited components are included, but not to exclude any other components. Further, in the specification, "on.
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the pixel structure of the array substrate, the array substrate and the liquid crystal display panel according to the present invention will be provided with reference to the accompanying drawings and preferred embodiments.
Fig. 1 is a schematic partial structure diagram of a liquid crystal display panel according to an embodiment of the invention; fig. 2 is a schematic diagram of a color resistor according to an embodiment of the invention. As shown in fig. 1, the lcd panel includes an array substrate 10 and a color filter layer, the color filter layer is disposed on the array substrate 10, and the array substrate 10 is specifically a TFT array substrate on which an array of active switching devices such as TFTs is formed. The color filter layer may include a black matrix layer and a color resist layer. The black matrix layer is disposed on the array substrate 10, and includes a plurality of black matrices 21. The color resistance layer is disposed on the array substrate 10 and the black matrix layer, the color resistance layer includes a plurality of color filter layers of different colors, each color filter layer includes a plurality of color resistors, each color resistor includes a first sub color resistance region and a second sub color resistance region, the first sub color resistance region has a first thickness, the second sub color resistance region has a second thickness, and the first thickness is smaller than the second thickness, which is described in detail below with reference to fig. 1 and 2.
In fig. 1, two sub color resistance regions in the same color resistance are separated by a dotted line, in fig. 1, the color resistance layer includes a first color filter layer, a second color filter layer and a third color filter layer, the first color filter layer includes a plurality of first color resistances 22, each first color resistance 22 includes a sub color resistance region 221, 222, the second color filter layer includes a plurality of second color resistances 23, each second color resistance 23 includes a sub color resistance region 231, 232, the third color filter layer includes a plurality of third color resistances 24, each third color resistance 24 includes a sub color resistance region 241, 242, and a thickness d1 of the sub color resistance region 221, 232, 241 is smaller than a thickness d2 of the sub color resistance region 222, 232, 242. Referring to fig. 2, the sub-color-resist region 221 of the first color resist 22 has a thickness smaller than that of the sub-color-resist region 222.
In fig. 1, the color resist layer is described as having a plurality of color filter layers of different colors, which have the same thickness. In another embodiment of the present invention, the color resistance layer may include a plurality of color filter layers of different colors, but the color resistance in each color filter layer includes a first sub-color resistance region and a second sub-color resistance region, and a first thickness of the first sub-color resistance region is smaller than a second thickness of the second sub-color resistance region, for example, a thickness of the blue color filter layer is greater than a thickness of the red color filter layer and a thickness of the green color filter layer, a thickness of the first blue sub-color resistance region included in the blue color resistance in the blue color filter layer is smaller than a thickness of the second blue sub-color resistance region, a thickness of the first red sub-color resistance region included in the red color resistance in the red color filter layer is smaller than a thickness of the second red sub-color resistance region, and a thickness of the second blue sub-color resistance region is greater than a thickness of the second red sub-color resistance region.
In an embodiment of the present invention, the first color filter layer, the second color filter layer, and the third color filter layer may be different and are respectively a red color filter layer, a green color filter layer, and a blue color filter layer, and the corresponding first color resist 22, the second color resist 23, and the third color resist 24 are different and are respectively a red color resist, a green color resist, and a blue color resist. Illustratively, the first color filter layer is a red color filter layer, the first color resistor 22 is a red color resistor, the second color filter layer is a blue color filter layer, the second color resistor 23 is a blue color resistor, the third color filter layer is a green color filter layer, and the third color resistor 24 is a green color resistor.
The invention also provides a liquid crystal display device which can comprise the liquid crystal display panel and the backlight module. The penetration rate of light emitted by the backlight module is relatively high when the light passes through the first sub color resistance area with the first thickness, so that a pixel light-transmitting bright area is formed, and the penetration rate of light emitted by the backlight module is relatively low when the light passes through the second sub color resistance area with the second thickness, so that a pixel light-transmitting dark area is formed.
The main principle of the conventional low color shift technology is to cut the conventional 4 regions into 8 regions by voltage division or additional driving, but the design is relatively complicated. According to the liquid crystal display panel and the liquid crystal display device, the color resistance layer is arranged on the array substrate, the color resistance is arranged into the areas with different thicknesses, the pixel light-transmitting area is divided into the light-transmitting brightness and the light-transmitting dark area by utilizing the difference of the penetration rate of light rays passing through the areas with different thicknesses, the structure is simple, the effect of low color cast is achieved, and the aperture opening rate and the penetration rate are improved.
In one embodiment of the present invention, the difference between the first thickness d1 and the second thickness d2 is between 0.3 μm (micrometer) and 0.5 μm.
In an embodiment of the present invention, the color resist layer may include a red color filter layer, a green color filter layer, and a blue color filter layer. Of course, in another embodiment of the present invention, the color resist layer may include a red color filter layer, a green color filter layer, a blue color filter layer, and a yellow color filter layer. In another embodiment of the present invention, the color resist layer may include a red color filter layer, a green color filter layer, a blue color filter layer, and a white color filter layer.
In one embodiment of the present invention, a first area of a surface of the first sub color-resistant region parallel to the array substrate 10 is larger than a second area of a surface of the second sub color-resistant region parallel to the array substrate 10, and for example, as shown in fig. 2, a first area a1 of the surface of the first sub color-resistant region 221 parallel to the array substrate 10 is larger than a second area a2 of the surface of the second sub color-resistant region 222 parallel to the array substrate 10. Specifically, the ratio of the first area to the second area is between 1.5 and 2.3.
In an embodiment of the invention, the color filter layer may further include a conductive layer disposed on the color resist layer. Optionally, the conductive layer is an Indium Tin Oxide (ITO) conductive layer.
In an embodiment of the invention, as shown in fig. 1, the color filter layer may further include a conductive layer 30 and a protection layer 40, the protection layer 40 is disposed on the color resist layer, and the conductive layer 30 is disposed on the protection layer 40, that is, the protection layer 40 is disposed between the color resist layer and the conductive layer 30. In this embodiment, the protective layer 40 also serves as a planarization layer.
In an embodiment of the invention, the liquid crystal display panel may further include a liquid crystal layer, and the liquid crystal layer is disposed on the color filter layer.
Fig. 3 is a flowchart of a method for manufacturing a color filter layer according to an embodiment of the invention. The method for manufacturing the color filter layer shown in fig. 3 may include the following steps:
step 102, forming a black matrix layer on the array substrate 10, wherein the black matrix layer includes a plurality of black matrices 21.
Step 104, forming a color resistance layer on the array substrate 10 and the black matrix layer, wherein the color resistance layer includes a plurality of color filter layers of different colors, each color filter layer includes a first color filter region and a second color filter region, the first color filter region has a first thickness, the second color filter region has a second thickness, and the first thickness is smaller than the second thickness.
Through the colored filter layer of this embodiment preparation, the color resists the layer and sets up on array substrate, and every color filter layer in the color resists the layer all includes two color filter regions, and two color filter regions have different thickness, like this, the light penetration rate that utilizes the color resists the layer of different thickness is different, divides into bright zone and dark space with pixel light transmission zone, simple structure, reach the effect of low colour cast and improved aperture ratio and transmissivity.
In an embodiment of the present invention, the method for manufacturing a color filter layer may further include: and forming a conductive layer on the color resistance layer.
In another embodiment of the present invention, the method for manufacturing a color filter layer may further include: a passivation layer 40 is formed on the photoresist layer, and a conductive layer 30 is formed on the passivation layer.
Fig. 4 is a method for manufacturing a color filter layer according to an embodiment of the invention. In the following description, taking a first color filter layer of a plurality of color filter layers of different colors as an example, as shown in fig. 4, a method for manufacturing the first color filter layer may include the following steps:
step 202, forming a first color film layer on the array substrate 10 and the black matrix layer.
And 204, exposing and developing the first color film layer to different degrees by using masks with various light transmittances.
Step 206, etching the exposed and developed first color film layer, such that a first region of the first color film layer is partially etched to form a first color filter region, a second region of the first color film layer forms a second color filter region, and a third region of the first color film layer is completely etched to form a first color filter layer.
In one embodiment of the present invention, the mask is a half tone (half tone) mask.
Fig. 5 is a flowchart of a method for fabricating a color filter layer according to another embodiment of the invention; fig. 6 to 15 are schematic views illustrating a manufacturing process of the color filter layer. In the following, taking the color filter layer with three colors as an example of the color resistance layer and referring to fig. 5 to fig. 15, a method for manufacturing a color filter layer is described, where the method for manufacturing a color filter layer may include the following steps:
step 301, forming a black matrix layer on the array substrate 10, as shown in fig. 6, the black matrix layer includes a plurality of black matrices 21.
Step 302 is to form a first color film 400 on the array substrate 10 and the black matrix layer, as shown in fig. 7.
Step 303, using a first mask 500 with multiple transmittances, exposing and developing the first color film 400 to different degrees, as shown in fig. 8.
Step 304, etching the exposed and developed first color film layer 400, such that the first region E1 of the first color film layer 400 is partially etched to form the first color filter region 411, the second region E2 of the first color film layer 400 forms the second color filter region 412, and the third region E3 of the first color film layer 400 is completely etched to form the first color filter layer 410, wherein the first color filter region 411 has a first thickness, and the second color filter region 412 has a second thickness, and the first thickness is smaller than the second thickness, as shown in fig. 9. The first mask 500 has a first mask region X1, a second mask region X2, and a third mask region X3, the first mask region X1 represents a region through which part of light can pass, the second mask region X2 represents a region through which light cannot pass, the third mask region X3 represents a region through which all of light can pass, various regions of the first color film 400 are exposed and developed by the first mask 500 to different degrees, illustratively, the first mask region X1 is aligned with a first region E1 from which part of the first color film 400 is to be removed, the second mask region X2 is aligned with a second region E2 from which the first color film 400 is not to be removed at all, and the third mask region X3 is aligned with a third region E3 from which all of the first color film 400 is to be removed. Due to the difference in light transmittance among the first, second, and third mask regions X1, X2, and X3 of the first mask 500, after the exposure development and etching are performed, as shown in fig. 9, the first color film layer 400 of the first region E1 is partially etched, the first color film layer 400 of the second region E2 is completely remained, and the first color film layer 400 of the third region E3 is completely etched and removed.
Step 305, forming a second color film 600 on the array substrate 10, the black matrix layer and the first color filter layer, as shown in fig. 10.
Step 306, using a second mask 700 with multiple transmittances, exposing and developing the second color film 600 to different degrees, as shown in fig. 11.
Step 307, the exposed and developed second color film layer 600 is etched such that the first region F1 of the second color film layer 600 is partially etched to form the first color filter region 611, the second region F2 of the second color film layer 600 forms the second color filter region 612, and the third region F3 of the second color film layer 600 is completely etched to form the second color filter layer 610, as shown in fig. 12. The second mask 700 has a first mask region Y1, a second mask region Y2, and a third mask region Y3, the first mask region Y1 represents a region through which part of light can pass, the second mask region Y2 represents a region through which light cannot pass, the third mask region Y3 represents a region through which all of light can pass, and various regions of the second color film 600 are exposed and developed by the second mask 700 to different degrees, for example, the first mask region Y1 is aligned with a first region F1 from which part of the second color film 600 is to be removed, the second mask region Y2 is aligned with a second region F2 from which the second color film 600 is not to be removed at all, and the third mask region Y3 is aligned with a third region F3 from which the second color film 600 is to be removed completely. Due to the difference in light transmittance among the first, second, and third mask regions Y1, Y2, and Y3 of the second mask 700, after the exposure development and etching are performed, as shown in fig. 12, the second color film layer 600 of the first region F1 is partially etched, the second color film layer 600 of the second region F2 is completely remained, and the second color film layer 600 of the third region F3 is completely etched and removed.
Step 308 is to form a third color film layer 800 on the array substrate, the black matrix layer, the first color filter layer, and the second color filter layer, as shown in fig. 13.
Step 309, using a third mask 900 with multiple transmittances, exposing and developing the third color film layer 800 to different degrees, as shown in fig. 14.
In step 310, the exposed and developed third color film layer 800 is etched, such that the first region G1 of the third color film layer 800 is partially etched to form a first color filter region 811, the second region G2 of the third color film layer 800 forms a second color filter region 812, and the third region G3 of the third color film layer 800 is completely etched to form a third color filter layer 810, and the first color filter layer 410, the second color filter layer 610, and the third color filter layer 810 constitute a color resist layer, as shown in fig. 15. The third mask 900 has a first mask region Z1, a second mask region Z2, and a third mask region Z3, the first mask region Z1 represents regions through which some light can pass, the second mask region Z2 represents regions through which light cannot pass, the third mask region Z3 represents regions through which all light can pass, and various regions of the third color film 800 are exposed and developed to different degrees using the third mask 900. illustratively, the first mask region Z1 is aligned with a first region G1 from which part of the third color film 800 is to be removed, the second mask region Z2 is aligned with a second region G2 from which the third color film 800 is not to be removed at all, and the third mask region Z3 is aligned with a third region G3 from which all of the third color film 800 is to be removed. Due to the difference in light transmittance of the first, second, and third mask regions Z1, Z2, and Z3 of the third mask 900, after the exposure development and etching are performed, as shown in fig. 15, the third color film layer 800 of the first region G1 is partially etched, the third color film layer 800 of the second region G2 is completely remained, and the third color film layer 800 of the third region G3 is completely etched and removed.
In one embodiment of the present invention, the transmittance of the mask in a first portion corresponding to the first region is between five percent and ten percent, the transmittance of the mask in a second portion corresponding to the second region is zero percent, and the transmittance of the mask in a third portion corresponding to the third region is one hundred percent. For example, the first mask region X1 of the first mask 500 has a light transmittance of between five to ten percent, the second mask region X2 has a light transmittance of zero percent, and the third mask region X3 has a light transmittance of one hundred percent.
In an embodiment of the invention, the first color film 400 is one of a red film, a green film and a blue film, the second color film 600 is another one of the red film, the green film and the blue film, and the third color film 800 has a color different from the first color film 400 and the second color film 600. Illustratively, the first color filter layer 410 is a red filter layer, the second color filter layer 610 is a green filter layer, and the third color filter layer 810 is a blue filter layer, respectively. The red color filter layer includes a plurality of red color resists, the green color filter layer includes a plurality of green color resists, and the blue color filter layer includes a plurality of blue color resists. In one embodiment of the present invention, one red color resist, one green color resist, and one blue color resist form one pixel unit on the color filter layer.
Fig. 16 is a flowchart of a method for manufacturing a liquid crystal display panel according to an embodiment of the invention. The method for manufacturing the liquid crystal display panel shown in fig. 16 may include the following steps:
step 402, providing the array substrate 10.
Step 404, forming a black matrix layer on the array substrate 10, wherein the black matrix layer includes a plurality of black matrices 21.
Step 406, forming a color resistance layer on the array substrate 10 and the black matrix layer, where the color resistance layer includes a plurality of color filter layers of different colors, each color filter layer includes a first color filter region and a second color filter region, the first color filter region has a first thickness, the second color filter region has a second thickness, and the first thickness is smaller than the second thickness.
Step 408, forming a liquid crystal display panel based on the array substrate 10, the black matrix layer and the color resist layer.
In an embodiment of the present invention, step 408 may include: forming a conductive layer on the color resistance layer; and forming a liquid crystal display panel based on the array substrate, the black matrix layer, the color resistance layer and the conductive layer. In another embodiment of the present invention, the step of forming the conductive layer on the color resist layer may include: forming a protective layer on the color resistance layer; and forming a conductive layer on the protective layer.
The invention also provides a pixel structure of the array substrate, which comprises a plurality of pixel units arranged in an array, wherein each pixel unit comprises a plurality of sub-pixels. Fig. 17 is a schematic diagram of a sub-pixel according to an embodiment of the invention. As shown in fig. 17, the sub-pixel 100 includes a first sub-pixel region 1001 and a second sub-pixel region 1002, and a first region area of the first sub-pixel region 1001 is larger than a second region area of the second sub-pixel region 1002.
Through the embodiment, each pixel unit in the pixel units arranged in the plurality of arrays comprises the plurality of sub-pixels 100, each sub-pixel comprises two sub-pixel regions, the areas of the two sub-pixel regions are different, the bright area and the dark area which are distinguished by the light transmission of the pixels can be better controlled, the effect of low color cast is achieved, the structure is simple, and the effect of low color cast is achieved.
In an embodiment of the present invention, a ratio of the area of the first region to the area of the second region is between 1.5 and 2.3.
In one embodiment of the present invention, the first sub-pixel region 1001 is aligned with the first sub-color-resist region, and the second sub-pixel region 1002 is aligned with the second sub-color-resist region.
In an embodiment of the present invention, the plurality of sub-pixels are a red sub-pixel, a green sub-pixel and a blue sub-pixel.
In another embodiment of the present invention, the plurality of sub-pixels are a red sub-pixel, a green sub-pixel, a blue sub-pixel and a yellow sub-pixel.
In another embodiment of the present invention, the plurality of sub-pixels are a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel.
The present invention also provides an array substrate, which may include: the array substrate comprises a common line, a data line, a scanning line and the pixel structure of the array substrate, wherein the pixel structure of the array substrate is respectively coupled with the data line and the scanning line.
The terms "in some embodiments" and "in various embodiments" are used repeatedly. The terms generally do not refer to the same embodiment; it may also refer to the same embodiment. The terms "comprising," "having," and "including" are synonymous, unless the context dictates otherwise.
Although the present invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (7)

1. A liquid crystal display panel, comprising:
an array substrate, comprising: the array substrate comprises a common line, a data line, a scanning line and a pixel structure of the array substrate, wherein the pixel structure of the array substrate is coupled with the data line and the scanning line respectively; the pixel structure of the array substrate comprises a plurality of pixel units arranged in an array, each pixel unit comprises a plurality of sub-pixels, and each sub-pixel comprises:
a first sub-pixel region; and
a second sub-pixel region, an area of the first sub-pixel region being greater than an area of the second sub-pixel region;
the color filter layer is arranged on the array substrate and comprises:
the black matrix layer is arranged on the array substrate;
the color resistance layer is arranged on the array substrate and the black matrix layer, the color resistance layer comprises a plurality of color filter layers with different colors, each color filter layer comprises a plurality of color resistors, each color resistor comprises a first sub color resistance area and a second sub color resistance area, the first sub color resistance area has a first thickness, the second sub color resistance area has a second thickness, the first thickness is smaller than the second thickness, the area of the surface, parallel to the array substrate, of the first sub color resistance area is larger than the area of the surface, parallel to the array substrate, of the second sub color resistance area, the first sub color group area is aligned with the first sub pixel area, and the second sub color resistance area is aligned with the second sub pixel area;
the protective layer is arranged on the color resistance layer and serves as a planarization layer so as to planarize the height difference between the first sub color resistance region and the second sub color resistance region;
the light ray penetrates through the first sub-color resistance area with a transmittance larger than that of the light ray penetrating through the second sub-color resistance area, so that the first sub-color resistance area forms a pixel light-transmitting bright area, and the second sub-color resistance area forms a pixel light-transmitting dark area.
2. The LCD panel of claim 1, wherein the difference between the first thickness and the second thickness is between 0.3 microns and 0.5 microns.
3. The liquid crystal display panel according to claim 1, wherein the color filter layer further comprises:
and the conducting layer is arranged on the protective layer.
4. The liquid crystal display panel according to claim 1, wherein a ratio of an area of the first sub-pixel region to an area of the second sub-pixel region is between 1.5 and 2.3.
5. The panel of claim 1, wherein the plurality of sub-pixels are a red sub-pixel, a green sub-pixel, and a blue sub-pixel.
6. The liquid crystal display panel of claim 1, wherein the plurality of sub-pixels are a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a yellow sub-pixel; alternatively, the first and second electrodes may be,
the plurality of sub-pixels are a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel.
7. A liquid crystal display panel, comprising:
an array substrate, comprising: the pixel structure of the array substrate comprises a plurality of pixel units arranged in an array, each pixel unit comprises a plurality of sub-pixels, and each sub-pixel comprises:
a first sub-pixel region; and
a second sub-pixel region, wherein the area of the first sub-pixel region is larger than that of the second sub-pixel region, and the ratio of the area of the first sub-pixel region to that of the second sub-pixel region is between 1.5 and 2.3;
the color filter layer is arranged on the array substrate and comprises:
the black matrix layer is arranged on the array substrate;
the color resistance layer is arranged on the array substrate and the black matrix layer, the color resistance layer comprises a plurality of color filter layers with different colors, each color filter layer comprises a plurality of color resistors, each color resistor comprises a first sub color resistance area and a second sub color resistance area, the first sub color resistance area has a first thickness, the second sub color resistance area has a second thickness, the first thickness is smaller than the second thickness, the first sub color resistance area is aligned with the first sub pixel area, the second sub color resistance area is aligned with the second sub pixel area, the thickness difference between the first thickness and the second thickness is 0.3-0.5 micron, and the area of the surface, parallel to the array substrate, of the first sub color resistance area is larger than the area of the surface, parallel to the array substrate, of the second sub color resistance area;
the protective layer is arranged on the color resistance layer and serves as a planarization layer so as to planarize the height difference between the first sub color resistance region and the second sub color resistance region;
the light ray penetrates through the first sub-color resistance area with a transmittance larger than that of the light ray penetrating through the second sub-color resistance area, so that the first sub-color resistance area forms a pixel light-transmitting bright area, and the second sub-color resistance area forms a pixel light-transmitting dark area.
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