EP0258848A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Liquid crystal device and method for manufacturing same with spacers formed by printing
Assignee: Semiconductor Energy Laboratory Co Ltd
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Filing: 1987-08-28
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Granted: —
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Expires: 2007-08-28
Abstract
Abstract An improved liquid crystal device and manufacturing method for same are described. In the device, a pair of substrates, between which a liquid crystal layer is disposed, is joined with pillars inbetween functioning as spacers which are provided of a resin by printing. With this structure, the spacers can be in surface contact with the inside surfaces of the substrates on which electrode arrangement and active devices are formed.
Inventors
- 👤 Masahiko Sato
- 👤 Akira Mase
- 👤 Hiroyuki Sakayori
- 👤 Shunpei Yamazaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 23:49
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1339; G02F1/13394; G02F1/13392; Y; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
85 words
A liquid crystal device comprising: a pair of substrate; a liquid crystal layer disposed between said pair of substrates; electrode arrangement provided on said substrate to apply a voltage to said liquid crystal layer; a sealing member provided on the perimeter of said pair of substrates; and a plurality of spacers disposed between said pair of substrates, said device characterized in that said spacers are pillars, each having bottom and upper flat surfaces by which said pair of substrates are fixed with a constant distance.
Claim 2
Dependent Claim
85 words
A liquid crystal device comprising: a pair of substrate; a liquid crystal layer disposed between said pair of substrates; electrode arrangement provided on said substrate to apply a voltage to said liquid crystal layer; a sealing member provided on the perimeter of said pair of substrates; and a plurality of spacers disposed between said pair of substrates, said device characterized in that said spacers are pillars, each having bottom and upper flat surfaces by which said pair of substrates are fixed with a constant distance.
Claim 3
Dependent Claim
18 words
A device of claim 1 wherein the distance between said pair of substrates is less than 3 microns.
Claim 4
Dependent Claim
14 words
A device of claim 2 wherein said liquid crystal is a ferroelectric liquid crystal
Claim 5
Dependent Claim
14 words
A device of claim 1 wherein said pillars are formed by a printing machine.
Claim 6
Dependent Claim
22 words
A device of claim 4 wherein said electrode arrangement is formed in a plurality of pixels which are arranged in a matrix.
Claim 7
Dependent Claim
36 words
A device of claim 5 wherein said pixels are constituted between a plurality of first parallel electrode strips, and a plurality of second parallel strips which are elongated in the direction perpendicular to said first strips.
Claim 8
Dependent Claim
13 words
A device of claim 5 wherein one pillar is provided on each pixel.
Claim 9
Dependent Claim
13 words
A device of claim 4 wherein said pillar has a rectangular cross section.
Claim 10
Dependent Claim
13 words
A device of claim 4 wherein said pillar has a circular cross section.
Claim 11
Dependent Claim
14 words
A device of claim 2 wherein said pillar is made of an epoxy resin.
Claim 12
Dependent Claim
13 words
A device of claim 5 wherein said pillars are placed between adjacent pixels.
Claim 13
Dependent Claim
30 words
A device of claim 1 wherein said pillar comprises a spherical member and an adhesive by means of which the pillar is fixed to the inside surface of said pillar.
Claim 14
Independent Claim
71 words
A method for manufacturing a liquid crystal device comprising the step of: forming electrode arrangement on the inside surfaces of a pair of substrates; printing a priscribed pattern of the material to be pillars and sealing member for said lqiud crystal device with a suitable thickness on the inside surface of one of said substrate; joining and uniting said pair of substrates; disposing a liquid crystal between said pair of substrates.
Claim 15
Independent Claim
71 words
A method for manufacturing a liquid crystal device comprising the step of: forming electrode arrangement on the inside surfaces of a pair of substrates; printing a priscribed pattern of the material to be pillars and sealing member for said lqiud crystal device with a suitable thickness on the inside surface of one of said substrate; joining and uniting said pair of substrates; disposing a liquid crystal between said pair of substrates.
Claim 16
Dependent Claim
78 words
A method of claim 13 wherein said printing step is implemented by means of a printing press machine comprising a container holding said material, a cylinder capable of rotating and receiving said material on the surface thereof which is scratched in accordance with said pattern, a squeegee for pushing off the said material other than trapped in the scratched pattern and a printing roll engaged with said cylinder and which receives the said material in the scratched pattern.
Claim 17
Dependent Claim
41 words
A method of claim 14 wherein said printing press machine further comprising an accompanying roll which is located adjacent to said printing roll with a suitable interval and rotates with said printing roll so that a substrate can be transported therebetween.
Claim 18
Dependent Claim
11 words
A method of claim 13 wherein said material is a resin.
Claim 19
Dependent Claim
12 words
A method of claim 16 wherein said resin is an epoxy adhesive.
Claim 20
Dependent Claim
18 words
A method of claim 13 wherein the distance between said pair of substrates is less than 3 microns.
Claim 21
Dependent Claim
14 words
A method of claim 18 wherein said liquid crystal is a ferroelectric liquid crystal.
Claim 22
Dependent Claim
13 words
A method of claim 18 wherein said distance is 2.2 ± 0.5 microns.
Claim 23
Dependent Claim
21 words
21 A method of claim 13 further comprising a step of prebaking said substrates which are united by said united step.
References Cited (Backward Citations)
No citation records indexed.
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