CN1095822A - A kind of method of controlling thickness of liquid crystal box - Google Patents
A kind of method of controlling thickness of liquid crystal box Download PDFInfo
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- CN1095822A CN1095822A CN 93106313 CN93106313A CN1095822A CN 1095822 A CN1095822 A CN 1095822A CN 93106313 CN93106313 CN 93106313 CN 93106313 A CN93106313 A CN 93106313A CN 1095822 A CN1095822 A CN 1095822A
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- liquid crystal
- box
- crystal cell
- thickness
- crystal box
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Abstract
The invention belongs to the method for making control thickness of liquid crystal box in the liquid crystal display device technology.This method instructs control procedure to control and test integrator with test value, guarantees the homogeneity of box thickness of LCD, can guarantee the parameter of liquid crystal display device effectively.
Description
The invention belongs to the liquid crystal device method for making.
At present, the thickness of two kinds of method control of industrial general employing liquid crystal cell, a kind of is pneumatic process, a kind of is that metal plate directly pressurizes.The envelope box glue that uses has two kinds of thermosetting resin and the solid type resins of light (this positive one, the very outstanding census of manufacturing meeting in Jiao Tian city of " liquid crystal basis と uses " pine).Pneumatic process utilizes gas flow and compressibility to the seal capsule qi of chong channel ascending adversely, and with the pressurization of capsule contact liquid crystal cell, pressure is determined by giving gas pressure intensity and liquid crystal cell area; Dull and stereotyped pressurization is to clamp liquid crystal cell with the higher metal of two flatness or the flat board of other relatively hard materials, and flat board is exerted pressure up.There are the following problems for these two kinds of methods:
1. because the own quality of pressing plate of pneumatic process seal capsule and dull and stereotyped pressurization is inhomogeneous, cause each zone pressurization of liquid crystal cell inhomogeneously, make the whole box of liquid crystal cell inhomogeneous;
2. owing to there is not observation device, can not determine in pressure process that the thick difference that occurs of which position box is also adjusted.
The method that the purpose of this invention is to provide a kind of simple and reliable control thickness of liquid crystal box both can be used for the envelope box glue laminated box of the solid type of light, also can be used for the envelope box glue laminated box of heat curing-type.
The present invention adopts following technical scheme:
With a wavelength coverage is that the monochromatic source of 390-400nm serves as to interfere light source.Liquid crystal cell is owing to the monochromatic irradiation in bottom, and the surface can be observed equal thick interference fringe.Can calculate the liquid crystal cell difference by △ h=λ/2n.Wherein △ h is the thickness of liquid crystal box difference, and λ is monochromatic wavelength, and n is a glass refraction.Adjust screw rod, observe interference fringe and distribute, the different striate regions of interfering apply different pressures, and the density of exerting pressure is 0.5-2 point/cm
2, the scope of exerting pressure is 0.5-2Kg/cm
2, the thickness range of liquid crystal cell is 0.8-10.0um, makes whole liquid crystal cell reach the thickness difference of technological requirement.After pressure mixes up,, make the adhesive curing of envelope box to the liquid crystal cell heating.
Below in conjunction with drawings and Examples the present invention is done concrete description.
Fig. 1 is the used apparatus and method synoptic diagram of the present invention.
(1) is monochromatic source among the figure; (2) be a normal glass plate; (3) but be increased pressure frame; (4) be screw rod; (5) be liquid crystal cell.
With a wavelength coverage is that the monochromatic source of 390-400nm serves as to interfere light source, but the increased pressure frame of making base plate with a normal glass plate is equipped with in the light source top, press the size of liquid crystal cell area and add percent consolidation zoning territory by quilt, there is a screw in each zone, liquid crystal cell is pressurizeed by screw with screw rod.
Example 1.TN-LCD: the glass bead with 7um and 9um is the middle chock insulator matter of liquid crystal cell, and the density of exerting pressure is 1 point/cm
2, exerting pressure is 1Kg/cm
2, the box thickness difference is controlled at 0.3-0.5um.
Example 2.STN-LCD: the glass bead with 6um and 7um is the middle chock insulator matter of liquid crystal cell, and the density of exerting pressure is 2 points/cm
2, exerting pressure is 2Kg/cm
2, the box thickness difference is controlled at 0.1-0.2um.
Claims (1)
1, a kind of method of controlling thickness of liquid crystal box is characterized in that: with a wavelength coverage is that the monochromatic source of 390-400nm serves as to interfere light source, distributes according to interference fringe, and the different striate regions of interfering apply different pressures, and the density of exerting pressure is 0.5-2 point/cm
2, the scope of exerting pressure is 0.5-2Kg/cm
2, the thickness range of liquid crystal cell is 0.8-10.0um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93106313 CN1095822A (en) | 1993-05-28 | 1993-05-28 | A kind of method of controlling thickness of liquid crystal box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93106313 CN1095822A (en) | 1993-05-28 | 1993-05-28 | A kind of method of controlling thickness of liquid crystal box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1095822A true CN1095822A (en) | 1994-11-30 |
Family
ID=4986174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93106313 Pending CN1095822A (en) | 1993-05-28 | 1993-05-28 | A kind of method of controlling thickness of liquid crystal box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1095822A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327277C (en) * | 2002-08-15 | 2007-07-18 | 温景梧 | Liqiud crystal dimmer and its manufacturing method |
| CN103673831A (en) * | 2013-12-20 | 2014-03-26 | 合肥京东方光电科技有限公司 | Thickness detection jig and thickness detection method |
| CN114609815A (en) * | 2022-02-07 | 2022-06-10 | 中国科学院上海光学精密机械研究所 | Manufacturing method of thick glass substrate liquid crystal box |
-
1993
- 1993-05-28 CN CN 93106313 patent/CN1095822A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327277C (en) * | 2002-08-15 | 2007-07-18 | 温景梧 | Liqiud crystal dimmer and its manufacturing method |
| CN103673831A (en) * | 2013-12-20 | 2014-03-26 | 合肥京东方光电科技有限公司 | Thickness detection jig and thickness detection method |
| CN114609815A (en) * | 2022-02-07 | 2022-06-10 | 中国科学院上海光学精密机械研究所 | Manufacturing method of thick glass substrate liquid crystal box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |