Patent US6580488B2 successfully refreshed from Google Patents.
US6580488B2
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Dual sided liquid crystal display device
Assignee: LG Electronics Inc
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Filing: 2002-08-20
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Granted: 2003-06-17
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Expires: 2022-08-20
Abstract
Abstract A liquid crystal display device and a mobile telecommunication terminal using the same can display messages such as information on a calling party, a received message, and temporal information even when a folding cover is not open by using a double-faced liquid crystal display device. The double-faced liquid crystal display device includes a first substrate having a common electrode, a second substrate having n scan electrodes and m signal electrodes, a liquid crystal layer disposed between the first and second substrates, a polarizer, and a reflector, wherein the liquid crystal display device is divided into a first region and a second region, and the polarizer and the reflector are symmetrically disposed so that the first region is displayed in a first direction and the second region is displayed in a second direction.
Inventors
- 👤 Hong Joo Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:45
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133553; H; H04; H04M; H04M1/00; H04M1/02; H04M1/0202; H04M1/0206; H04M1/0208; H04M1/0214; H04M1/0241; H04M1/0245; G02F1/133342; G02F1/133528; G02F1/133541; H04M2250/00; H04M2250/16
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
126 words
A liquid crystal display device comprising: a first substrate having a common electrode; a second substrate having n scan electrodes and m signal electrodes; a liquid crystal layer disposed between the first and second substrates; a first reflector; a first polarizer between the first substrate and the first reflector; a second reflector; a second polarizer between the second substrate and the second reflector, wherein the liquid crystal display device is divided into a first region and a second region, and the first and second polarizers and the first and second reflectors are respectively divided and disposed so that the first region is displayed in a first direction and the second region is displayed in a second direction, the first direction being opposite from the second direction.
Claim 2
Dependent Claim
126 words
A liquid crystal display device comprising: a first substrate having a common electrode; a second substrate having n scan electrodes and m signal electrodes; a liquid crystal layer disposed between the first and second substrates; a first reflector; a first polarizer between the first substrate and the first reflector; a second reflector; a second polarizer between the second substrate and the second reflector, wherein the liquid crystal display device is divided into a first region and a second region, and the first and second polarizers and the first and second reflectors are respectively divided and disposed so that the first region is displayed in a first direction and the second region is displayed in a second direction, the first direction being opposite from the second direction.
Claim 3
Dependent Claim
54 words
The liquid crystal display device as claimed in claim 1 , wherein the first region and the second region commonly include the m signal electrodes, the first region includes first to kth scan electrodes of the n scan electrodes, and the second region includes k+1th to nth scan electrodes of the n scan electrodes.
Claim 4
Dependent Claim
54 words
The liquid crystal display device as claimed in claim 1 , wherein the first region and the second region commonly include the n scan electrodes, the first region includes first to kth signal electrodes of the m signal electrodes, and the second region includes k+1 to mth signal electrodes of the m signal electrodes.
Claim 5
Dependent Claim
31 words
The liquid crystal display device as claimed in claim 1 , wherein at least a portion of the signal electrodes and the scan electrodes are formed in a dot matrix pattern.
Claim 6
Dependent Claim
30 words
The liquid crystal display device as claimed in claim 1 , wherein at least a portion of the signal electrodes and the scan electrodes are formed in a segment pattern.
Claim 7
Dependent Claim
60 words
The liquid crystal display device as claimed in claim 1 , wherein at least a portion of the signal electrodes and the scan electrodes are formed such that a first portion of the signal and scan electrodes are formed in a dot matrix pattern and a second portion of the signal and scan electrodes are formed in a segment pattern.
Claim 8
Dependent Claim
49 words
The liquid crystal display device of claim 1 , wherein the liquid crystal layer has a first switching state in which a phase of light is changed while passing through it and a second switching state in which the phase of light is not changed while passing through it.
Claim 9
Dependent Claim
25 words
The liquid crystal display device of claim 1 , further comprising first and second electrodes for applying an electric field to the liquid crystal layer.
Claim 10
Dependent Claim
133 words
A liquid crystal display device comprising: a first substrate; a second substrate disposed below the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a first front polarizer disposed above and extending over a first portion of the first substrate; a first rear polarizer disposed above and extending over a second portion of the first substrate; a first reflector disposed above the first rear polarizer and extending over the second portion of the first substrate; a second rear polarizer disposed below and extending under a first portion of the second substrate; a second reflector disposed below the second rear polarizer and extending under the first portion of the second substrate; and a second front polarizer disposed below and extending under a second portion of the second substrate.
Claim 11
Dependent Claim
133 words
A liquid crystal display device comprising: a first substrate; a second substrate disposed below the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a first front polarizer disposed above and extending over a first portion of the first substrate; a first rear polarizer disposed above and extending over a second portion of the first substrate; a first reflector disposed above the first rear polarizer and extending over the second portion of the first substrate; a second rear polarizer disposed below and extending under a first portion of the second substrate; a second reflector disposed below the second rear polarizer and extending under the first portion of the second substrate; and a second front polarizer disposed below and extending under a second portion of the second substrate.
Claim 12
Dependent Claim
26 words
The liquid crystal display device of claim 9 , wherein the first front polarizer is substantially aligned with the second rear polarizer and the second reflector.
Claim 13
Dependent Claim
26 words
The liquid crystal display device of claim 9 , wherein the second front polarizer is substantially aligned with the first rear polarizer and the first reflector.
Claim 14
Dependent Claim
149 words
A liquid crystal display device, comprising: a planar first substrate having a common electrode; a planar second substrate having scan electrodes and signal electrodes; and a liquid crystal layer disposed between the first and second substrates; wherein the first substrate and the second substrate are divided into a first region and a contiguous second region; a first polarizer over the first region; a first reflector over the first region; a second polarizer over the second region; and a second reflector over the second region wherein the first region is for displaying images that are visible from a first direction; wherein the second region is for displaying images that are visible from a second direction that is opposite the first direction; wherein images in the first region are blocked from view from the second direction; and wherein images in the second region are blocked from view from the first direction.
Claim 15
Dependent Claim
149 words
A liquid crystal display device, comprising: a planar first substrate having a common electrode; a planar second substrate having scan electrodes and signal electrodes; and a liquid crystal layer disposed between the first and second substrates; wherein the first substrate and the second substrate are divided into a first region and a contiguous second region; a first polarizer over the first region; a first reflector over the first region; a second polarizer over the second region; and a second reflector over the second region wherein the first region is for displaying images that are visible from a first direction; wherein the second region is for displaying images that are visible from a second direction that is opposite the first direction; wherein images in the first region are blocked from view from the second direction; and wherein images in the second region are blocked from view from the first direction.
Claim 16
Dependent Claim
22 words
A liquid crystal display device according to claim 12 , wherein the second substrate includes n scan electrodes and m signal electrodes.
Claim 17
Dependent Claim
51 words
A liquid crystal display device according to claim 13 , wherein the m signal electrodes extend over the first region and over the second region, wherein the first region includes the first to the kth scan electrodes, and the wherein the second region includes the k+1th to the nth scan electrodes.
Claim 18
Dependent Claim
50 words
A liquid crystal display device according to claim 13 , wherein the n scan electrodes extend over the first region and over the second region, wherein the first region includes the first to the kth signal electrodes, and wherein the second region includes the k+1 to the mth signal electrodes.
Claim 19
Dependent Claim
38 words
A liquid crystal display device according to claim 12 , wherein the first and second polarizers are on opposite sides of the first substrate; and wherein the first and second reflectors are opposite the first and second polarizers.
Claim 20
Dependent Claim
28 words
A liquid crystal display device according to claim 12 , wherein at least a portion of the signal electrodes and the scan electrodes form a dot matrix pattern.
Claim 21
Dependent Claim
27 words
A liquid crystal display device according to claim 12 , wherein at least a portion of the signal electrodes and the scan electrodes form a segment pattern.
Claim 22
Dependent Claim
28 words
A liquid crystal display device according to claim 18 , wherein at least a portion of the signal electrodes and the scan electrodes form a dot matrix pattern.
Claim 23
Dependent Claim
60 words
A liquid crystal display device according to claim 12 , wherein the liquid crystal layer has a first switching state in which a phase of light is changed as the light passes through the liquid crystal layer, and a second switching state in which the phase of light is not changed as the light passes through the liquid crystal layer.
Claim 24
Dependent Claim
23 words
A liquid crystal display device according to claim 12 , further comprising electrodes for applying an electric field across the liquid crystal layer.
Claim 25
Dependent Claim
108 words
A liquid crystal display device, comprising: a first substrate having a first portion and a second portion; a second substrate adjacent the first substrate and having a first portion and a second portion; a liquid crystal layer disposed between the first substrate and the second substrate; a front polarizer extending over the first portion of the first substrate; a rear polarizer extending over the first portion of the second substrate; a front reflector disposed opposite the rear polarizer and extending over the first portion of the second substrate; and a rear reflector disposed opposite the first front polarizer and extending over the first portion of the first substrate.
Claim 26
Dependent Claim
108 words
A liquid crystal display device, comprising: a first substrate having a first portion and a second portion; a second substrate adjacent the first substrate and having a first portion and a second portion; a liquid crystal layer disposed between the first substrate and the second substrate; a front polarizer extending over the first portion of the first substrate; a rear polarizer extending over the first portion of the second substrate; a front reflector disposed opposite the rear polarizer and extending over the first portion of the second substrate; and a rear reflector disposed opposite the first front polarizer and extending over the first portion of the first substrate.
Claim 27
Dependent Claim
21 words
A liquid crystal display device according to claim 22 , wherein the front polarizer is substantially planar with the front reflector.
Claim 28
Dependent Claim
21 words
A liquid crystal display device according to claim 22 , wherein the rear polarizer is substantially aligned with the rear reflector.
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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) | 2006-06-16 | 2006-12-16 | 2007-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-06-16 | 2010-12-16 | 2011-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-06-16 | 2014-12-16 | 2015-06-17 | $7700.00 | Window Closed / Lapsed |