US5995186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parallel field liquid crystal display with substantially straight data and common electrodes inclined at an angle to a gate line
Assignee: LG Display Co Ltd
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Filing: 1997-04-04
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Granted: 1999-11-30
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Expires: 2017-04-04
Abstract
Abstract A liquid crystal display including: a first transparent substrate coated with a first alignment layer, a second transparent substrate coated with a second alignment layer, the second substrate facing the first transparent substrate, a liquid crystal layer between the substrates, a polarizer attached on the outer surfaces of the substrates, a pair of electrodes formed on the first substrates, and a driving circuit applying signal voltage to the electrodes. The liquid crystal molecules adjacent to the first substrate is rotated by applying the voltage, but, the liquid crystal molecule adjacent to the second substrate is fixed regardless of the applied voltage. The electrode pair, substantially straight data and common electrodes, are inclined at an angle with respect to a gate line.
Inventors
- 👤 Komatsu Hiroshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:35
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1343; G02F1/134309; G02F1/134363
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
93 words
A liquid crystal display device comprising: a first substrate; a first alignment layer on the first substrate; a second substrate; a second alignment layer on the second substrate; a liquid crystal layer between the first substrate and the second substrate; a gate line on the first substrate; and substantially straight data and common electrodes on the first substrate, the data and common electrodes being inclined at an angle with respect to the gate line, the data electrode being connected to a data line and the comon electrode being connected to a common line.
Claim 2
Dependent Claim
93 words
A liquid crystal display device comprising: a first substrate; a first alignment layer on the first substrate; a second substrate; a second alignment layer on the second substrate; a liquid crystal layer between the first substrate and the second substrate; a gate line on the first substrate; and substantially straight data and common electrodes on the first substrate, the data and common electrodes being inclined at an angle with respect to the gate line, the data electrode being connected to a data line and the comon electrode being connected to a common line.
Claim 3
Dependent Claim
34 words
The liquid crystal display device according to claim 1, further including: a polarizer on the first substrate and having a transmittance axis; and an analyzer on the second substrate and having a transmittance axis.
Claim 4
Dependent Claim
25 words
The liquid crystal display device according to claim 2, wherein the transmittance axis of the polarizer is perpendicular to the transmittance axis of the analyzer.
Claim 5
Dependent Claim
36 words
The liquid crystal display device according to claim 2, wherein the transmittance axis of the polarizer is parallel to an alignment direction of liquid crystal molecules of the liquid crystal layer adjacent to the first substrate.
Claim 6
Dependent Claim
28 words
The liquid crystal display device according to claim 1, wherein molecules of the liquid crystal layer adjacent to the first substrate are aligned parallel to the gate line.
Claim 7
Dependent Claim
28 words
The liquid crystal display device according to claim 1, wherein molecules of the liquid crystal layer adjacent to the first substrate are aligned perpendicular to the gate line.
Claim 8
Dependent Claim
20 words
The liquid crystal display device according to claim 1, wherein the angle is in a range of 0° to 90°.
Claim 9
Dependent Claim
14 words
The liquid crystal display device according to claim 1, wherein the angle is 85°.
Claim 10
Dependent Claim
20 words
The liquid crystal display device according to claim 1, wherein the angle is in a range of 90° to 180°.
Claim 11
Dependent Claim
14 words
The liquid crystal display device according to claim 9, wherein the angle is 95°.
Claim 12
Dependent Claim
60 words
The liquid crystal display device according to claim 1, wherein the first alignment layer is a different material from the second alignment layer, and the material for the first alignment layer has a smaller anchoring energy with respect to liquid crystal molecules than the anchoring energy with respect to liquid crystal molecules of the material for the second alignment layer.
Claim 13
Dependent Claim
18 words
The liquid crystal display device according to claim 11, wherein the second alignment layer includes a polyamic-based material.
Claim 14
Dependent Claim
126 words
A liquid crystal display device comprising: a first substrate; a first alignment layer on the first substrate; a second substrate; a second alignment layer on the second substrate; a liquid crystal layer between the first substrate and the second substrate; a gate line on the first substrate; substantially straight data and common electrodes on the first substrate, the data and common electrodes being parallel to each other and inclined at an angle with respect to the gate line, the data electrode being connected to a data line and the comon electrode being connected to a common line; a polarizer on a surface of the first substrate opposite the first alignment layer; and an analyzer on a surface of the substrate second opposite the second alignment layer.
Claim 15
Dependent Claim
126 words
A liquid crystal display device comprising: a first substrate; a first alignment layer on the first substrate; a second substrate; a second alignment layer on the second substrate; a liquid crystal layer between the first substrate and the second substrate; a gate line on the first substrate; substantially straight data and common electrodes on the first substrate, the data and common electrodes being parallel to each other and inclined at an angle with respect to the gate line, the data electrode being connected to a data line and the comon electrode being connected to a common line; a polarizer on a surface of the first substrate opposite the first alignment layer; and an analyzer on a surface of the substrate second opposite the second alignment layer.
Claim 16
Dependent Claim
34 words
The liquid crystal display device in accordance with claim 13, wherein an alignment direction of liquid crystal molecules of the liquid crystal layer adjacent to the first substrate is parallel to the gate line.
Claim 17
Dependent Claim
33 words
The liquid crystal display device according to claim 13, wherein an alignment direction of liquid crystal molecules of the liquid crystal layer adjacent to the first substrate is perpendicular to the gate line.
Claim 18
Dependent Claim
23 words
The liquid crystal device according to claim 13, wherein the polarizer has a transmittance axis perpendicular to a transmittance axis of the analyzer.
Claim 19
Dependent Claim
35 words
The liquid crystal display device according to claim 13, wherein the polarizer has a transmittance axis parallel to an alignment direction of liquid crystal molecules of the liquid crystal layer adjacent to the first substrate.
Claim 20
Dependent Claim
19 words
The liquid crystal display device according to claim 13, the angle is in a range of 0° to 90°.
Claim 21
Dependent Claim
13 words
The liquid crystal device according to claim 18, wherein the angle is 85°.
Claim 22
Dependent Claim
19 words
The liquid crystal device according to claim 13, wherein the angle is in a range of 90° to 180°.
Claim 23
Dependent Claim
13 words
The liquid crystal device according to claim 20, wherein the angle is 95°.
Claim 24
Dependent Claim
55 words
The liquid crystal device according to claim 13, wherein the first alignment layer and the second alignment layer are made of different materials, and wherein the material of the first alignment layer has a smaller anchoring energy with respect to liquid crystal molecules than an anchoring energy of the material of the second alignment layer.
Claim 25
Dependent Claim
18 words
The liquid crystal display device according to claim 22, wherein the second alignment layer includes a polyamic-based material.
Claim 26
Dependent Claim
25 words
The liquid crystal display device according to claim 13, wherein a distance between the electrodes is less than the thickness of the liquid crystal layer.
Claim 27
Dependent Claim
107 words
A liquid crystal display device comprising: a first substrate; a gate line on the first substrate; a first alignment layer on the first substrate; a second substrate; a second alignment layer on the second substrate, an anchoring energy of the second alignment layer being greater than an anchoring energy of the first alignment layer; a liquid crystal layer between the first substrate and the second substrate; and substantially straight data and common electrodes on the first substrate and inclined at an angle with respect to the gate line, the data electrode being connected to a data line and the comon electrode being connected to a common line.
Claim 28
Dependent Claim
107 words
A liquid crystal display device comprising: a first substrate; a gate line on the first substrate; a first alignment layer on the first substrate; a second substrate; a second alignment layer on the second substrate, an anchoring energy of the second alignment layer being greater than an anchoring energy of the first alignment layer; a liquid crystal layer between the first substrate and the second substrate; and substantially straight data and common electrodes on the first substrate and inclined at an angle with respect to the gate line, the data electrode being connected to a data line and the comon electrode being connected to a common line.
Claim 29
Dependent Claim
18 words
The liquid crystal display device according to claim 25, wherein the second alignment layer includes a polyamic-based material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-11-29 | 2003-05-31 | 2003-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-29 | 2007-05-31 | 2007-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-29 | 2011-05-31 | 2011-11-30 | $7700.00 | Window Closed / Lapsed |