CN111240107A - Pixel structure, array substrate, display panel and manufacturing method of display panel - Google Patents
Pixel structure, array substrate, display panel and manufacturing method of display panel Download PDFInfo
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- CN111240107A CN111240107A CN202010191731.4A CN202010191731A CN111240107A CN 111240107 A CN111240107 A CN 111240107A CN 202010191731 A CN202010191731 A CN 202010191731A CN 111240107 A CN111240107 A CN 111240107A
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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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
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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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
Abstract
The present disclosure provides a pixel structure, an array substrate, a display panel and a manufacturing method of a display panel, where the pixel structure includes a plurality of first strip electrodes and a plurality of second strip electrodes for driving liquid crystal molecules to rotate, where the first strip electrodes are arranged in a column, and each of the first strip electrodes is arranged in a first direction; the second strip-shaped electrodes are sequentially arranged on two sides of each row of the first strip-shaped electrodes, and are arranged in a second direction, wherein a certain angle is formed between the second direction and the first direction. According to the liquid crystal display device, the pixel structure drives the liquid crystal molecules inside to form the arrangement of the initial anchoring state consistent with the arrangement direction of the strip electrodes, so that the color deviation is reduced or eliminated, in addition, under the horizontal large visual angle and the vertical large visual angle, the displayed optical phase delay delta n x d is close to delta n x d of the positive visual angle, and along with the increase of the visual angle, the color of the liquid crystal display device cannot generate larger deviation relative to the front observation.
Description
Technical Field
The disclosure relates to the technical field of liquid crystal display, in particular to a pixel structure, an array substrate, a display panel and a manufacturing method of the display panel.
Background
Liquid Crystal Displays (LCDs) have many advantages such as power saving, low radiation, and soft image quality, and are widely used. Among them, in-plane switching liquid crystal displays (IPS-LCDs) are one of the most mainstream displays at present due to their advantages such as wide viewing angle, and in-vehicle liquid crystal displays have a higher demand for color shift because drivers are not front view liquid crystal displays. Color shift is a common phenomenon in poor display of a thin film transistor liquid crystal display (TFT-LCD), and as the viewing angle of a display panel increases, the color of the display panel greatly deviates from that of a front view.
At present, the pixel arrangement mode of an in-plane switching (IPS) product mainly includes a horizontal mode and a vertical mode, as shown in fig. 1, the horizontal pixels and the vertical pixels are arranged in a dark state, as shown in fig. 2, the change trends of optical phase delays Δ n × d of the horizontal pixels and the vertical pixels are different, Δ n2 of the horizontal pixels is smaller than Δ n1 of the vertical pixels, the vertical pixels are closer to the optical phase delays Δ n × d of a positive viewing angle, and the color cast is lighter. However, in a large vertical viewing angle, Δ n2 of the horizontal pixel is greater than Δ n1 of the vertical pixel, and the vertical pixel is farther away from the positive viewing angle light phase retardation Δ n × d and has heavier color cast. Therefore, color cast of the horizontal pixel and the vertical pixel in a dark state is not ideal at present.
Disclosure of Invention
In order to solve the technical problem that color cast of the current horizontal pixel and the vertical pixel is not ideal in a dark state, the embodiment of the disclosure provides the following technical scheme:
a first aspect of the present disclosure provides a pixel structure including a plurality of first stripe electrodes and a plurality of second stripe electrodes for driving liquid crystal molecules to rotate, wherein,
the first strip-shaped electrodes are arranged in columns, and each first strip-shaped electrode is arranged in a first direction; the second strip-shaped electrodes are sequentially arranged on two sides of each row of the first strip-shaped electrodes, and are arranged in a second direction, wherein a certain angle is formed between the second direction and the first direction.
In some embodiments, the second direction is 90 ° from the first direction.
In some embodiments, the display device comprises n display areas connected in sequence, each column of the first strip-shaped electrodes sequentially penetrates through the n display areas, the first strip-shaped electrodes in each display area are arranged according to a third direction, the third direction deflects for a predetermined angle based on the first direction, and n is greater than or equal to 2 and is a natural number.
In some embodiments, the second strip-shaped electrodes in each of the display regions are arranged in a fourth direction, and an included angle is formed between the fourth direction and the third direction.
In some embodiments, the included angle between the fourth direction and the third direction is 90 °.
Another aspect of the present disclosure provides an array substrate, which includes the pixel structure described in any one of the above.
In another aspect, the present disclosure provides a display panel, which includes a color film substrate, the array substrate, and a liquid crystal layer located between the color film substrate and the array substrate.
In some embodiments, liquid crystal molecules in the liquid crystal layer are arranged and form an initial anchoring state based on an alignment direction of the first strip-shaped electrodes and/or the second strip-shaped electrodes under driving of each corresponding first strip-shaped electrode or second strip-shaped electrode.
In some embodiments, the initial anchoring state is a 90 ° arrangement between the liquid crystal molecules driven by the first strip-shaped electrodes and the liquid crystal molecules driven by the second strip-shaped electrodes.
Yet another aspect of the present disclosure provides a method for manufacturing a display panel, including:
respectively manufacturing a color film substrate and an array substrate;
exposing the array substrate through a polarizing plate;
and arranging a liquid crystal layer between the color film substrate and the array substrate to form a coplanar conversion liquid crystal substrate.
Based on the disclosure of the above embodiments, it can be known that the embodiments of the present disclosure have the following beneficial effects:
according to the liquid crystal display device, the pixel structure drives the liquid crystal molecules inside to form the arrangement of the initial anchoring state consistent with the arrangement direction of the strip electrodes, so that the color deviation is reduced or eliminated, in addition, under the horizontal large visual angle and the vertical large visual angle, the displayed optical phase delay delta n x d is close to delta n x d of the positive visual angle, and along with the increase of the visual angle, the color of the liquid crystal display device cannot generate larger deviation relative to the front observation.
Drawings
FIG. 1 is a schematic diagram of a dark state liquid crystal arrangement of horizontal and vertical pixels of a conventional LCD;
FIG. 2 is a schematic cross-sectional view of a liquid crystal molecule of a conventional LCD with a large horizontal viewing angle;
FIG. 3 is a schematic diagram of the arrangement of the strip electrodes and the liquid crystal molecules in the pixel structure according to the embodiment of the disclosure;
FIG. 4 is a flowchart of a method for implementing different anchoring directions of liquid crystal in a pixel structure according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a liquid crystal display panel according to an embodiment of the disclosure.
Reference symbols of the drawings
A-a display area; b-a display area; 51-a light source; 52-incident light; 53-barrier type light-blocking black matrix; 54-photo-alignment exposure film; 55-polarized light; 56-color film substrate; 57-an array substrate; 58-polarizer.
Detailed Description
Specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, but the present disclosure is not limited thereto.
It will be understood that various modifications may be made to the embodiments disclosed herein. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Other modifications will occur to those skilled in the art within the scope and spirit of the disclosure.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.
These and other characteristics of the present disclosure will become apparent from the following description of preferred forms of embodiment, given as non-limiting examples, with reference to the attached drawings.
It should also be understood that, although the present disclosure has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the disclosure, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely examples of the disclosure that may be embodied in various forms. Well-known and/or repeated functions and structures have not been described in detail so as not to obscure the present disclosure with unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.
The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.
Example 1
The embodiment of the present disclosure provides a pixel structure, as shown in fig. 3, the pixel structure specifically includes a plurality of first stripe electrodes 10 and a plurality of second stripe electrodes 20 for driving liquid crystal molecules to rotate, where the plurality of first stripe electrodes 10 are arranged in columns, a column pitch between the first stripe electrodes 10 is a set value, each first stripe electrode 10 is arranged in a first direction, where the first direction represents a longitudinal extension direction of each first stripe electrode 10; the second stripe electrodes 20 are sequentially disposed at both sides of each row of the first stripe electrodes 10, and each of the second stripe electrodes 20 is arranged in a second direction, where the second direction represents a longitudinal extension direction of each of the second stripe electrodes 20, and the second direction forms an angle with the first direction, so that a phase delay Δ n × d of displayed light approaches Δ n × d of a positive viewing angle under a horizontal large viewing angle and a vertical large viewing angle. Thereby playing a role in reducing color cast.
In particular, in the pixel structure, an arrangement of first strip-shaped electrodes and second strip-shaped electrodes is provided, wherein an angle is formed between a longitudinal extension direction (i.e. a first direction) of the first strip-shaped electrode arranged in the middle and a longitudinal extension direction (i.e. a second extension direction) of the second strip-shaped electrodes arranged on both sides, wherein the angle between the second direction and the first direction is preferably arranged at 90 °. The arrangement is such that the liquid crystal molecules filled in the pixel structure form an angle with each other under the driving of the first strip-shaped electrode 10 and the second strip-shaped electrode 20, respectively, so as to form an arrangement with a predetermined direction, wherein the predetermined direction is optimally the case that the axial direction of the liquid crystal molecules in the middle is perpendicular to the axial direction of the liquid crystal molecules on both sides, so as to reduce or eliminate color deviation at different viewing angles to the maximum.
Furthermore, in order to improve the effect of reducing or eliminating color deviation under different viewing angles for different display positions on the display area, different display areas can be divided into the pixel structures, and the division of the display areas can be reasonably divided according to the size of the display area and the size of the pixel structures. Specifically, the pixel structure may include n display regions connected in sequence, where n is greater than or equal to 2 and is a natural number, each row of the first strip-shaped electrodes 10 sequentially passes through the n display regions, the first strip-shaped electrodes 10 in each display region are arranged in a third direction, the third direction is deflected by a certain angle based on the first direction, the second strip-shaped electrodes 20 in each display region are arranged in a fourth direction, and a certain angle is formed between the fourth direction and the third direction, where an angle between the fourth direction and the third direction is preferably 90 °. The arrangement is such that within each of the display areas, at large horizontal and large vertical viewing angles, the phase retardation Δ n × d of the displayed light approaches Δ n × d at a positive viewing angle. Therefore, the color cast can be reduced at any display position of the display area.
In the pixel structure of the embodiment shown in fig. 1, the pixel structure is divided into 2 display regions for example. The first stripe electrodes 10 in the display area a are arranged in a third direction, which is inclined at an angle of +8 ° based on the first direction, and the second stripe electrodes 20 in the display area a are arranged in a fourth direction, which is inclined at an angle of +8 ° based on the second direction, such that an angle between the third direction and the fourth direction is maintained; the first stripe electrodes 10 in the display region B are arranged in a third direction inclined at an angle of-8 ° based on the first direction, and the second stripe electrodes 20 in the display region B are arranged in a fourth direction inclined at an angle of-8 ° based on the second direction, so that the angle between the third direction and the fourth direction is maintained.
According to the liquid crystal display device, the pixel structure drives the liquid crystal molecules inside to form the arrangement of the initial anchoring state consistent with the arrangement direction of the strip electrodes, so that the color deviation is reduced or eliminated, in addition, under the horizontal large visual angle and the vertical large visual angle, the displayed optical phase delay delta n x d is close to delta n x d of the positive visual angle, and along with the increase of the visual angle, the color of the liquid crystal display device cannot generate larger deviation relative to the front observation.
Example 2
The embodiment of the present disclosure further provides an array substrate, including the pixel structure in embodiment 1 above. The array substrate may be a TFT array substrate, and specifically, the TFT array substrate may include a glass substrate, a gate layer, a source drain layer, a semiconductor layer, a gate insulating layer, a common electrode layer, and a pixel electrode layer. The pixel electrode layer includes the pixel structure in embodiment 1.
According to the liquid crystal display device, the pixel structure drives the liquid crystal molecules inside to form the arrangement of the initial anchoring state consistent with the arrangement direction of the strip electrodes, so that the color deviation is reduced or eliminated, in addition, under the horizontal large visual angle and the vertical large visual angle, the displayed optical phase delay delta n x d is close to delta n x d of the positive visual angle, and along with the increase of the visual angle, the color of the liquid crystal display device cannot generate larger deviation relative to the front observation.
Example 3
The embodiment of the present disclosure further provides a display panel, which includes a color film substrate (i.e., a CF substrate), the array substrate in embodiment 2, and a liquid crystal layer between the color film substrate and the array substrate, wherein the color film substrate is used for realizing color display; the array substrate is used for carrying out active driving on the strip electrodes, so that liquid crystal molecules in the liquid crystal layer are arranged in an initial anchoring state consistent with the arrangement direction of the strip electrodes. The color film substrate and the array substrate are attached to form a coplanar conversion liquid crystal substrate. Specifically, the color film substrate comprises a glass substrate, a black matrix layer, a color resist layer, a planarization layer and a spacer, wherein the spacer is used for forming a gap between the color film substrate and the array substrate.
Further, liquid crystal molecules in the liquid crystal layer are arranged and form an initial anchoring state based on the arrangement direction of the first strip-shaped electrodes 10 and/or the second strip-shaped electrodes 20 under the driving of each corresponding first strip-shaped electrode 10 or second strip-shaped electrode 20.
Specifically, the rotation angle and the arrangement direction of the liquid crystal molecules in one row are controlled to be consistent with the direction of the first strip-shaped electrodes 10 by the first strip-shaped electrodes 10; the rotation angle and the arrangement direction of the liquid crystal molecules on both sides of the column of liquid crystal molecules are controlled to be consistent with the direction of the second strip-shaped electrodes 20 by the second strip-shaped electrodes 20.
In some embodiments, when the angle between the second direction of the second stripe electrodes 20 and the first direction of the first stripe electrodes 10 is controlled to be 90 °, the first stripe electrodes 10 in the middle of each pixel structure are arranged in a horizontal inclined manner, the second stripe electrodes 20 on both sides are arranged in a vertical inclined manner, and liquid crystal molecules filled in the liquid crystal layer are aligned in a horizontal manner in the middle and in a vertical manner on both sides by the photo-alignment technique. Thus, under the horizontal large viewing angle and the vertical large viewing angle, the displayed optical phase delay delta n can be maximally close to delta n x d of the positive viewing angle. Thereby playing a role in reducing color cast.
According to the liquid crystal display device, the pixel structure drives the liquid crystal molecules inside to form the arrangement of the initial anchoring state consistent with the arrangement direction of the strip electrodes, so that the color deviation is reduced or eliminated, in addition, under the horizontal large visual angle and the vertical large visual angle, the displayed optical phase delay delta n x d is close to delta n x d of the positive visual angle, and along with the increase of the visual angle, the color of the liquid crystal display device cannot generate larger deviation relative to the front observation.
Example 4
and S1, respectively manufacturing a color film substrate and an array substrate.
In this step, as shown in fig. 5, a color filter substrate 56 and an array substrate 57 need to be manufactured, and the manufacturing processes of the color filter substrate 56 and the array substrate 57 are similar to those of a color filter substrate and an array substrate in a conventional in-plane switching liquid crystal display (IPS LCD), where the manufacturing of the color filter substrate 56 specifically includes: laying back indium tin oxide on a glass substrate; forming a black matrix layer on a glass substrate with back-plated indium tin oxide by an exposure and development technology, and forming a color filter layer on the black matrix layer, wherein the color filter layer is formed by arranging a blue film, a green film and a red film at intervals, the black matrix layer has the function of shading the glass substrate, preventing the substrate from generating a photoelectric effect and further generating false operation, preventing two colors from being mixed and improving the contrast of the colors; arranging a planarization layer on the color filter layer, wherein the planarization layer has a protection effect; arranging a gap control material layer on the planarization layer, wherein the gap control material layer can be a photoreaction type gap control material layer, and the photoreaction type gap control material layer is used for arranging a gap between the attached color film substrate and the array substrate so that liquid crystal molecules can rotate for a certain angle in the middle; the manufacturing of the array substrate 57 specifically includes: a grid layer, a source drain layer, a semiconductor layer, a grid insulating layer, a common electrode layer and a pixel electrode layer are sequentially formed on a glass substrate through an exposure and development technology. Preferably, an alignment film (PI) is coated on the color filter substrate 56 and the array substrate 57. The above steps are all consistent with the process of the conventional coplanar conversion liquid crystal display.
The difference from the conventional manufacturing process of the in-plane switching liquid crystal display is that, in the process of manufacturing the array substrate 57, when the electrode pixel layer is formed, the pixel structures in the electrode pixel layer are arranged in a matrix arrangement, and the pixel structures are arranged in the following manner: the plurality of first strip-shaped electrodes 10 are arranged in columns, the column spacing between the first strip-shaped electrodes 10 is a set value, and each first strip-shaped electrode 10 is arranged in a first direction, wherein the first direction represents the longitudinal extension direction of each first strip-shaped electrode 10; the second strip-shaped electrodes 20 are sequentially arranged on both sides of each row of the first strip-shaped electrodes 10, and each second strip-shaped electrode 20 is arranged in a second direction, where the second direction represents a longitudinal extension direction of each second strip-shaped electrode 20, and the second direction forms an angle with the first direction, and the angle between the second direction and the first direction is preferably 90 °.
Furthermore, in order to improve the effect of reducing or eliminating color deviation under different viewing angles for different display positions on the display area, the display area can be divided into the pixel structures, and the division of the display area can be reasonably divided according to the size of the display area and the size of the pixel structures. Specifically, the pixel structure may include n display regions connected in sequence, where n is greater than or equal to 2 and is a natural number, each row of the first strip-shaped electrodes 10 sequentially passes through the n display regions, the first strip-shaped electrodes 10 in each display region are arranged in a third direction, the third direction is deflected by a certain angle based on the first direction, the second strip-shaped electrodes 20 in each display region are arranged in a fourth direction, and a certain angle is formed between the fourth direction and the third direction, where an angle between the fourth direction and the third direction is preferably 90 °.
On the array substrate 57, a plurality of the pixel structures may be distributed in different matrix manners, and the number of the pixel structures depends on the product process requirements, so that the pixel structures can form an arrangement of an initial anchoring state consistent with the arrangement direction of the strip-shaped electrodes for the liquid crystal molecules by using a photo-alignment technique. Modifications and variations to the above-described pixel structures are well within the scope of this disclosure, as modifications will occur to those skilled in the art and are readily accomplished.
And S2, exposing the array substrate through a polarizing plate.
In this step, before exposing the electrode pixel layer on the array substrate 57 through the polarizer, firstly, a polarizer needs to be manufactured, as shown in fig. 5, the manufacturing process specifically includes disposing a barrier type light-blocking black matrix 53 on a photo-alignment exposure film 54 by using a photo-alignment technology, so as to form a polarizer 58 with a polarization function, where the barrier type light-blocking black matrix 53 includes a plurality of light-blocking units, an arrangement manner of light-blocking black blocks in each light-blocking unit is consistent with an arrangement manner of the strip-shaped electrodes of the pixel structure, and specifically, a first light-blocking area, a second light-blocking area, and a middle light-blocking area are disposed in the light-blocking units; the first light-blocking areas are provided with a plurality of first light-blocking black blocks, the first light-blocking black blocks are arranged in a linear mode by taking the long axis direction of the first light-blocking areas as the axis, the second light-blocking areas opposite to the first light-blocking areas are provided with a plurality of second light-blocking black blocks, the second light-blocking black blocks are arranged symmetrically with the first light-blocking black blocks of the first light-blocking areas, the middle light-blocking areas are provided with a plurality of third light-blocking black blocks, and the long axis direction of the third light-blocking black blocks is perpendicular to the long axis direction of the first light-blocking black blocks and the long axis direction of the second light-blocking black blocks. In another embodiment, the light-blocking unit may be rotated by 90 degrees, and the arrangement of the light-blocking black blocks inside the light-blocking unit is not changed. The number of the first light-isolating black blocks of the first light-isolating area, the number of the second light-isolating black blocks of the second light-isolating area and the number of the third light-isolating black blocks of the middle light-isolating area are determined according to the technological requirements of products.
In this way, the electrode pixel layer on the array substrate 57 is exposed by the polarizer 58, specifically, the polarizer 58 converts the incident light 52 emitted from the light source 51 into polarized light 55 having a direction, wherein the direction of the polarized light 55 is consistent with the predetermined arrangement direction of the strip-shaped electrodes; all the strip electrodes in the electrode pixel layer of the array substrate 57 are exposed through the polarizer 58, so that the strip electrodes in the electrode pixel layer form different predetermined arrangement directions according to a set scheme.
And S3, arranging a liquid crystal layer between the color film substrate and the array substrate to form a coplanar conversion liquid crystal substrate. Here, the subsequent packaging process is consistent with the production of conventional LCDs, and this process includes, for example: seal glue coating → liquid crystal dripping → vacuum bonding, specifically, as shown in fig. 5, Seal glue is coated on the borders of the color film substrate 56 and the array substrate 57 to prevent liquid crystal from leaking, and liquid crystal is dripped to form a liquid crystal layer; and (5) vacuum-laminating the color film substrate 56 formed in the step (S1) and the array substrate 57, filling up a gap between the substrates by using a photoreaction type gap control material on the color film substrate 56, and bonding and drying to form the coplanar conversion liquid crystal substrate. The in-plane switching liquid crystal substrate is formed by laminating a color filter substrate 56 and an array substrate 57 with a liquid crystal layer interposed therebetween.
Further, polarization selection and analysis are performed by the polarizing plates 58 on one side or both sides of the in-plane switching liquid crystal substrate, and the incident light 52 is converted into linearly polarized light 55 and irradiated into the in-plane switching liquid crystal substrate. The color film substrate 56 of the coplanar switching liquid crystal substrate is used for color display, and the array substrate 57 is used for performing active driving on the strip-shaped electrodes, so that liquid crystal molecules are arranged in the initial anchoring direction, and the effect of reducing color cast is achieved.
According to the liquid crystal display device, the pixel structure drives the liquid crystal molecules inside to form the arrangement of the initial anchoring state consistent with the arrangement direction of the strip electrodes, so that the color deviation is reduced or eliminated, in addition, under the horizontal large visual angle and the vertical large visual angle, the displayed optical phase delay delta n x d is close to delta n x d of the positive visual angle, and along with the increase of the visual angle, the color of the liquid crystal display device cannot generate larger deviation relative to the front observation.
The above embodiments are merely exemplary embodiments of the present disclosure, which is not intended to limit the present disclosure, and the scope of the present disclosure is defined by the claims. Various modifications and equivalents of the disclosure may occur to those skilled in the art within the spirit and scope of the disclosure, and such modifications and equivalents are considered to be within the scope of the disclosure.
Claims (10)
1. A pixel structure comprises a plurality of first strip electrodes and a plurality of second strip electrodes for driving liquid crystal molecules to rotate,
the first strip-shaped electrodes are arranged in columns, and each first strip-shaped electrode is arranged in a first direction; the second strip-shaped electrodes are sequentially arranged on two sides of each row of the first strip-shaped electrodes, and are arranged in a second direction, wherein a certain angle is formed between the second direction and the first direction.
2. The pixel structure according to claim 1, wherein the second direction is 90 ° from the first direction.
3. The pixel structure according to claim 1, comprising n display regions connected in sequence, wherein each column of the first stripe electrodes sequentially passes through the n display regions, the first stripe electrodes in each display region are arranged according to a third direction, the third direction is deflected by a predetermined angle based on the first direction, and n is a natural number greater than or equal to 2.
4. The pixel structure according to claim 3, wherein the second stripe electrodes in each of the display regions are arranged in a fourth direction, and an included angle is formed between the fourth direction and the third direction.
5. The pixel structure according to claim 4, wherein the angle between the fourth direction and the third direction is 90 °.
6. An array substrate comprising the pixel structure of any one of claims 1-5.
7. A display panel, comprising a color filter substrate, the array substrate according to claim 6, and a liquid crystal layer between the color filter substrate and the array substrate.
8. The display panel according to claim 7, wherein liquid crystal molecules in the liquid crystal layer are arranged and form an initial anchoring state based on an alignment direction of the first strip-shaped electrodes and/or the second strip-shaped electrodes under driving of each corresponding first strip-shaped electrode or second strip-shaped electrode.
9. The display panel according to claim 8, wherein the initial anchoring state is a 90 ° arrangement between the liquid crystal molecules driven by the first stripe electrodes and the liquid crystal molecules driven by the second stripe electrodes.
10. A method for manufacturing a display panel according to claims 7 to 9, comprising:
respectively manufacturing a color film substrate and an array substrate;
exposing the array substrate through a polarizing plate;
and arranging a liquid crystal layer between the color film substrate and the array substrate to form a coplanar conversion liquid crystal substrate.
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| CN112631031A (en) * | 2020-12-18 | 2021-04-09 | 京东方科技集团股份有限公司 | Array substrate, preparation method thereof and display device |
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