JPS54110864A - Method and apparatus for detecting patterns for liquid crystal display element - Google Patents
Method and apparatus for detecting patterns for liquid crystal display elementInfo
- Publication number
- JPS54110864A JPS54110864A JP1767178A JP1767178A JPS54110864A JP S54110864 A JPS54110864 A JP S54110864A JP 1767178 A JP1767178 A JP 1767178A JP 1767178 A JP1767178 A JP 1767178A JP S54110864 A JPS54110864 A JP S54110864A
- Authority
- JP
- Japan
- Prior art keywords
- positioning
- objective lens
- lower sheet
- glasses
- sheet glass
- 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
Abstract
PURPOSE: To enhance the positioning precision and product yield, by making the objective lens to be reciprocatable along the optical axis thereof.
CONSTITUTION: An objective lens 4 is made to be reciprocatable along the optical axis thereof. Upper and lower sheet glasses 1, 2 are disposed at a propev spacing (d), and the illumination light from an optical fiber 7 is caused to light a positioning pattern 1a on the upper sheet glass 1 by way of condenser lens 6, half mirror 5, objective lens 4, and mirror 3. After detecting this pattern position with a TV camera 10, the objective lens 4 is moved to light and detect a positioning pattern 2a on the lower sheet glass 2. The lower sheet glass 2 is moved in the directions of x, y, θ so that the positions of both positioning patterns 1a, 2a may concide with each other. After perfect coincidence, the upper and lower sheet glasses 1, 2 are adhered together tightly. Thus, high precision positioning may be realized without causing contact abrasion between both glasses 1, 2, so that the intended purpose may be achieved.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1767178A JPS54110864A (en) | 1978-02-20 | 1978-02-20 | Method and apparatus for detecting patterns for liquid crystal display element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1767178A JPS54110864A (en) | 1978-02-20 | 1978-02-20 | Method and apparatus for detecting patterns for liquid crystal display element |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54110864A true JPS54110864A (en) | 1979-08-30 |
JPS6311601B2 JPS6311601B2 (en) | 1988-03-15 |
Family
ID=11950310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1767178A Granted JPS54110864A (en) | 1978-02-20 | 1978-02-20 | Method and apparatus for detecting patterns for liquid crystal display element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54110864A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63212806A (en) * | 1987-03-02 | 1988-09-05 | Tokyo Inst Of Technol | Optical system for non-contact type three-dimensional coordinates detecting apparatus and method of generating position signal automatically |
US5172254A (en) * | 1988-12-05 | 1992-12-15 | Sharp Kabushiki Kaisha | Projection-type liquid crystal display apparatus |
-
1978
- 1978-02-20 JP JP1767178A patent/JPS54110864A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63212806A (en) * | 1987-03-02 | 1988-09-05 | Tokyo Inst Of Technol | Optical system for non-contact type three-dimensional coordinates detecting apparatus and method of generating position signal automatically |
US5172254A (en) * | 1988-12-05 | 1992-12-15 | Sharp Kabushiki Kaisha | Projection-type liquid crystal display apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6311601B2 (en) | 1988-03-15 |
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