CN105652524A - Liquid crystal display panel alignment method - Google Patents
Liquid crystal display panel alignment method Download PDFInfo
- Publication number
- CN105652524A CN105652524A CN201610188886.6A CN201610188886A CN105652524A CN 105652524 A CN105652524 A CN 105652524A CN 201610188886 A CN201610188886 A CN 201610188886A CN 105652524 A CN105652524 A CN 105652524A
- Authority
- CN
- China
- Prior art keywords
- sub
- row
- pixel unit
- ultraviolet radiation
- liquid crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
Abstract
The invention provides a liquid crystal display panel alignment method. A liquid crystal display substrate comprises a TFT side substrate body, a CF side substrate body and liquid crystal clamped between the TFT side substrate body and the CF side substrate body, wherein both the TFT side substrate body and the CF side substrate body comprises a plurality of opposite pixel units, and each pixel unit comprises a plurality of sub-pixel units in different colors. Taking the arrangement direction of the sub-pixel units in different colors as the line direction and the direction perpendicular to the horizontal direction as the longitudinal direction, the alignment method comprises the steps of irradiating the left half portion of the sub-pixel units in each row with the cross range of the sub-pixel units of every two rows as the period of a TFT side UV2A photomask, and then irradiating the right half portion of the sub-pixel units in each row; irradiating the upper half portion of the sub-pixel units in each row with the longitudinal distance of the sub-pixel units of every two lines as the period of a CF side UV2A photomask, and then irradiating the lower half portion of the sub-pixel units in each row.
Description
Technical field
The present invention relates to the alignment method of a kind of liquid crystal panel.
Background technology
Light orientation in lcd technology is the high molecular polymer alignment film utilizing the irradiation under ultraviolet ray of linear polarization to have photoperceptivity, makes high molecular polymer have orientation ability. Its advantage is that of avoiding in contact friction matching process the glass baseplate surface being likely to result in and pollutes, simultaneously that the restriction ratio of orientation area is relatively low, light shield can be passed through and realize multidomain orientation, utilize the angle of incident illumination and the length of irradiation time to control the parameter (such as tilt angle, surface orientation power etc.) of liquid crystal cells.
In existing smooth allocating process, including UV2A allocating process, UV2A (UltraVioletVerticalAlignment) technology is a kind of VA (VerticalAlignment adopting ultraviolet (UV=UltraViolet) to carry out LCD alignment, vertical orientation) panel technology, its title derives from being multiplied of ultraviolet (UV) and liquid crystal panel VA pattern. After importing UV2A technology, can save in current VA mode liquid crystal panel for controlling slit and the projection of liquid crystal alignment, therefore can be largely increased by the aperture opening ratio of UV2A technology liquid crystal panel, contrast and response speed, and can significantly cut down production routine.
In UV2A allocating process, for reaching the display effect of wide viewing angle, polarization state UV is needed to irradiate light with certain angle of inclination, the single sub-pixel subregion of same substrate is performed twice at or more times carries out two-way irradiation and (first carries out first time unidirectional irradiation, then rotary plate 180o, carry out the unidirectional irradiation of secondary again, twice unidirectional irradiation gathers the two-way irradiation of formation), the direction of illumination of color membrane substrates and thin-film transistor array base-plate is orthogonal, thus forming 4Domain, 8Domain orientation effect of whole liquid crystal panel.
For 4Domain orientation, alignment method the more commonly used at present, as it is shown in figure 1, respectively color membrane substrates and thin-film transistor array base-plate are carried out two-way irradiation exposure, forms the 4Domain LCD alignment of single sub-pixel.In Fig. 1, first row is the light alignment direction of electric crystal array film substrate; The second light alignment direction being classified as color membrane substrates; 3rd row be TFT side with the group of CF sidelight alignment structure and. A, B, C, D direction of arrow as shown in Figure 2 is the alignment direction of liquid crystal after sub-pixel 4Domain orientation. Owing to four LCD alignment region openings areas of sub-pixel 4Domain are identical, and the LCD alignment direction in four regions is mutually orthogonal, so that liquid crystal panel each angled-view offset is identical, to reach to expand panel visual angle, eliminates the effect of visual angle aberration.
But, in the actual production and application process of liquid crystal panel, there is color membrane substrates and thin-film transistor array base-plate group founds the problem of skew, especially when liquid crystal panel is applied on curved face product, the skew between upper and lower base plate can become apparent from. As it is shown on figure 3, when there is skew between upper and lower base plate, the sub-pixel of 4Domain design, its four LCD alignment region openings areas are different, then viewing angle compensation value there are differences, thus causing panel visual angle aberration. Same, when picture element size is not absolute rectangle, or due to the impact of the periphery components and parts such as thin film transistor (TFT) (TFT), when causing tetra-LCD alignment region openings areas of 4Domain of picture element different, panel visual angle aberration all can be caused.
Summary of the invention
The present invention takes off the alignment method of a kind of liquid crystal VA pattern, liquid crystal display substrate includes TFT side substrate, CF side substrate and is located in the liquid crystal between TFT side substrate and CF side substrate, TFT side substrate all includes relative some pixel cells with CF side substrate, each pixel cell all includes the sub-pixel unit that several are not homochromy, definition is line direction along not homochromy sub-pixel unit orientation, the direction of vertical transverse direction is longitudinal direction, and its orientation step is as follows:
The first step: in the cycle being TFT side UV2A light shield with the lateral separation of the sub-pixel unit of two row, the left side of the sub-pixel unit that the light leak gap of TFT side UV2A light shield covers every string is irradiated; Afterwards, the right-hand part of the sub-pixel unit that the light leak gap of TFT side UV2A light shield covers this every string is irradiated; Wherein, when left and right two parts of every string sub-pixel unit carry out ultraviolet radiation, direction of illumination is contrary; And ultraviolet radiation in opposite direction or identical of two row of same period;
Second step: the cycle with the fore-and-aft distance of the sub-pixel unit of two row for CF side UV2A light shield, the first half of the sub-pixel unit that the light leak gap of CF side UV2A light shield covers every a line is irradiated; Afterwards, the lower half of the sub-pixel unit that the light leak gap of CF side UV2A light shield covers this every a line is irradiated; Wherein, when two parts up and down of every a line sub-pixel unit carry out ultraviolet radiation, direction of illumination is contrary; And the ultraviolet radiation of two row of same period is in opposite direction or identical; The ultraviolet radiation direction of color membrane substrates CF and array base palte TFT is orthogonal;
When ultraviolet radiation in opposite direction of two row of same period, the ultraviolet radiation of two row of same period in opposite direction or identical; When same period two row ultraviolet radiation direction simultaneously, the ultraviolet radiation of two row of same period in opposite direction.
Beneficial effect: by the light alignment method of the present invention, can efficiently solve because of array base version TFT and color membrane substrates CF group immediately, the left and right occurred or the impact of downward shift, bending or picture element periphery components and parts, after in turn resulting in orientation, 4 Domain openings of sizes differences of single pixel make the visual angle aberration problem of the unbalanced formation of viewing angle compensation value.
Accompanying drawing explanation
Fig. 1 is the light alignment method of prior art;
Fig. 2 is the alignment direction of liquid crystal after prior art sub-pixel 4Domain orientation;
Fig. 3 is tetra-region openings area difference schematic diagrams of 4Domain of prior art sub-pixel;
Fig. 4 is the light orientation combination of one embodiment of the present of invention;
Fig. 5 be the present invention sub-pixel 4Domain orientation after the alignment direction of liquid crystal;
Fig. 6 is the light orientation combination of a kind of array base palte of the present invention and color membrane substrates;
Fig. 7 is the light orientation combination of a kind of array base palte of the present invention and color membrane substrates;
Fig. 8 is the light orientation combination of a kind of array base palte of the present invention and color membrane substrates;
Fig. 9 is the light orientation combination of a kind of array base palte of the present invention and color membrane substrates.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, it is further elucidated with the present invention, it should be understood that these embodiments are merely to illustrate the present invention rather than restriction the scope of the present invention, after having read the present invention, the amendment of the various equivalent form of values of the present invention is all fallen within the application claims limited range by those skilled in the art.
The present invention will utilize light alignment technique to form multiple domain orientation, and liquid crystal display substrate includes TFT side substrate, CF side substrate and is located in the liquid crystal between TFT side substrate and CF side substrate.
In the present invention, definition is line direction along the sub-pixel unit orientation that RGB tri-is not homochromy, and the direction of vertical transverse direction is longitudinal direction. With the distance of laterally two row sub-pixel unit for TFT side UV2The distance of the cycle of A light shield and longitudinally two row sub-pixel unit is CF side UV2In the cycle of A light shield, the orientation step of the liquid crystal display substrate shown in Fig. 4 is as follows:
The first step: with the lateral separation of the sub-pixel unit of two row for TFT side UV2The cycle of A light shield, TFT side UV2The left side of the sub-pixel unit that the light leak gap of A light shield covers every string is irradiated; Afterwards, TFT side UV2The right-hand part of the sub-pixel unit that the light leak gap of A light shield covers this every string is irradiated; Wherein, when left and right two parts of every string sub-pixel unit carry out ultraviolet radiation, direction of illumination is contrary; And ultraviolet radiation in opposite direction or identical of two row of same period.
Second step: with the fore-and-aft distance of the sub-pixel unit of two row for CF side UV2The cycle of A light shield, CF side UV2The first half of the sub-pixel unit that the light leak gap of A light shield covers every a line is irradiated; Afterwards, CF side UV2The lower half of the sub-pixel unit that the light leak gap of A light shield covers this every a line is irradiated; Wherein, when two parts up and down of every a line sub-pixel unit carry out ultraviolet radiation, direction of illumination is contrary; And the ultraviolet radiation of two row of same period is in opposite direction or identical. The ultraviolet radiation direction of color membrane substrates CF and array base palte TFT is orthogonal.
When ultraviolet radiation in opposite direction of two row of same period, the ultraviolet radiation of two row of same period in opposite direction or identical; When same period two row ultraviolet radiation direction simultaneously, the ultraviolet radiation of two row of same period in opposite direction.
Shown in Fig. 4 is the one of TFT side and the combination of CF sidelight alignment structure, and wherein the square of first row represents the alignment direction of TFT side both alignment layers, and the square of the 2nd row represents the alignment direction of CF side both alignment layers, and the square of the 3rd row represents the situation of both overlaps. The alignment direction of TFT side both alignment layers be fixed as from left to right lower up and down on, and the alignment direction of CF side both alignment layers respectively left and right, left and right from top to bottom.After completing light orientation according to this alignment direction and above-mentioned steps, two substrates cooperatively form LCD alignment, A, B, C, D are the alignment direction of 4 Domain liquid crystal that single sub-pixel is formed after orientation, as shown in Figure 5, adjacent two Domain picture elements compensate mutually, by the liquid crystal panel that this light alignment method is formed, despite the presence of the situation of left and right skew, but the viewing angle compensation value of entirety is identical, thus avoid visual angle aberration.
Change according to the direction that light irradiates, also will obtain such as four kinds of TFT side of Fig. 6 to Fig. 9 and the combination of CF sidelight alignment structure, wherein the square of first row represents the alignment direction of TFT side both alignment layers, and the square of the 2nd row represents the alignment direction of CF side both alignment layers, and the square of the 3rd row represents the situation of both overlaps.
Various combination according to above-mentioned smooth alignment structure, can efficiently solve because of array base version TFT and color membrane substrates CF group immediately, the left and right occurred or the impact of downward shift, bending or picture element periphery components and parts, after in turn resulting in orientation, 4 Domain openings of sizes differences of single pixel make the visual angle aberration problem of the unbalanced formation of viewing angle compensation value.
By the light matching method of the present invention, without again picture element being carried out the design adjustment of complexity, without updating apparatus, have only to change UV light in light process of alignment the direction of illumination of substrate just can be reached, such that it is able to simplify the process requirements of liquid crystal panel, improve and produce yield and display quality, strengthen factory's benefit.
Claims (1)
1. the alignment method of a liquid crystal panel, liquid crystal display substrate includes TFT side substrate, CF side substrate and is located in the liquid crystal between TFT side substrate and CF side substrate, TFT side substrate all includes relative some pixel cells with CF side substrate, each pixel cell all includes the sub-pixel unit that several are not homochromy, definition is line direction along not homochromy sub-pixel unit orientation, the direction of vertical transverse direction is longitudinal direction, and its orientation step is as follows:
The first step: in the cycle being TFT side UV2A light shield with the lateral separation of the sub-pixel unit of two row, the left side of the sub-pixel unit that the light leak gap of TFT side UV2A light shield covers every string is irradiated; Afterwards, the right-hand part of the sub-pixel unit that the light leak gap of TFT side UV2A light shield covers this every string is irradiated; Wherein, when left and right two parts of every string sub-pixel unit carry out ultraviolet radiation, direction of illumination is contrary; And ultraviolet radiation in opposite direction or identical of two row of same period;
Second step: the cycle with the fore-and-aft distance of the sub-pixel unit of two row for CF side UV2A light shield, the first half of the sub-pixel unit that the light leak gap of CF side UV2A light shield covers every a line is irradiated; Afterwards, the lower half of the sub-pixel unit that the light leak gap of CF side UV2A light shield covers this every a line is irradiated; Wherein, when two parts up and down of every a line sub-pixel unit carry out ultraviolet radiation, direction of illumination is contrary; And the ultraviolet radiation of two row of same period is in opposite direction or identical; The ultraviolet radiation direction of color membrane substrates CF and array base palte TFT is orthogonal;
When ultraviolet radiation in opposite direction of two row of same period, the ultraviolet radiation of two row of same period in opposite direction or identical; When same period two row ultraviolet radiation direction simultaneously, the ultraviolet radiation of two row of same period in opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610188886.6A CN105652524B (en) | 2016-03-29 | 2016-03-29 | A kind of alignment method of liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610188886.6A CN105652524B (en) | 2016-03-29 | 2016-03-29 | A kind of alignment method of liquid crystal display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105652524A true CN105652524A (en) | 2016-06-08 |
| CN105652524B CN105652524B (en) | 2019-05-14 |
Family
ID=56496544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610188886.6A Active CN105652524B (en) | 2016-03-29 | 2016-03-29 | A kind of alignment method of liquid crystal display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105652524B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459891A (en) * | 2018-12-29 | 2019-03-12 | 成都中电熊猫显示科技有限公司 | The light alignment method and display panel and display device of display panel |
| CN110045548A (en) * | 2019-06-06 | 2019-07-23 | 成都中电熊猫显示科技有限公司 | Exposure mask equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150055063A1 (en) * | 2013-08-23 | 2015-02-26 | Innolux Corporation | Display apparatus |
| CN104423096A (en) * | 2013-08-23 | 2015-03-18 | 群创光电股份有限公司 | Liquid crystal display panel |
| CN105158983A (en) * | 2015-09-29 | 2015-12-16 | 南京中电熊猫液晶显示科技有限公司 | Alignment method for liquid crystal ultra violet vertical alignment (UV2A) mode |
-
2016
- 2016-03-29 CN CN201610188886.6A patent/CN105652524B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150055063A1 (en) * | 2013-08-23 | 2015-02-26 | Innolux Corporation | Display apparatus |
| CN104423096A (en) * | 2013-08-23 | 2015-03-18 | 群创光电股份有限公司 | Liquid crystal display panel |
| CN105158983A (en) * | 2015-09-29 | 2015-12-16 | 南京中电熊猫液晶显示科技有限公司 | Alignment method for liquid crystal ultra violet vertical alignment (UV2A) mode |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459891A (en) * | 2018-12-29 | 2019-03-12 | 成都中电熊猫显示科技有限公司 | The light alignment method and display panel and display device of display panel |
| CN109459891B (en) * | 2018-12-29 | 2022-05-03 | 成都中电熊猫显示科技有限公司 | Light alignment method of display panel, display panel and display device |
| CN110045548A (en) * | 2019-06-06 | 2019-07-23 | 成都中电熊猫显示科技有限公司 | Exposure mask equipment |
| CN110045548B (en) * | 2019-06-06 | 2021-12-07 | 成都中电熊猫显示科技有限公司 | Mask equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105652524B (en) | 2019-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100582901C (en) | Liquid crystal display panel and method for producing same | |
| KR101675372B1 (en) | Liquid crystal display | |
| CN104238195A (en) | Orientation method of liquid crystal VA (Vertical Alignment) mode | |
| CN106444131A (en) | Display panel | |
| CN105652506A (en) | Color filter and making method thereof and photomask used for making color filter | |
| US10126602B2 (en) | Curved display device and fabricating method thereof | |
| US9810955B2 (en) | Array substrate and display device | |
| JP6386082B2 (en) | Liquid crystal display device and manufacturing method thereof | |
| CN103869547A (en) | Optical alignment equipment and manufacturing method thereof | |
| JP6386081B2 (en) | Liquid crystal display panel alignment method and corresponding liquid crystal display device | |
| CN105158983B (en) | A kind of liquid crystal UV2The alignment method of mode A | |
| CN103728782A (en) | Liquid crystal display device and corresponding manufacturing method | |
| CN104880850A (en) | Color filter substrate and curved-surface liquid crystal display panel with same | |
| CN107065317A (en) | Liquid crystal display panel and its manufacture method and curved-surface display equipment | |
| CN105372879A (en) | LCD (liquid crystal display) panel and manufacture method of alignment films of LCD panel | |
| CN105652524A (en) | Liquid crystal display panel alignment method | |
| JP6386083B2 (en) | Liquid crystal display device and manufacturing method thereof | |
| CN104516162B (en) | Vertical alignment liquid crystal display panel | |
| KR101900814B1 (en) | Array substrate for fringe field switching mode liquid crystal display device | |
| US11024503B2 (en) | Laser annealing device, mask, thin film transistor, and laser annealing method | |
| KR20150086821A (en) | Liquid crystal display and manufacturing method thereof | |
| KR20170072303A (en) | Liquid crystal display and array substrate thereof | |
| CN114185201B (en) | Liquid crystal display mother board, alignment method thereof and liquid crystal display panel | |
| US10261365B2 (en) | Liquid crystal display panel and manufacturing method thereof | |
| KR20110050038A (en) | Apparatus for fringe field switching mode lcd device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |