Transflective liquid crystal display device and fabricating method thereof
First Claim
1. A transflective liquid crystal display device, comprising:
- first and second substrates facing and spaced apart from each other, the first and second substrates having reflective and transmissive portions;
a first retardation film on an outer surface of the first substrate, the first retardation film having a first optical axis;
a first polarizing plate on the first retardation film, the first polarizing plate having a first transmissive axis;
a common electrode on an inner surface of the first substrate;
a pixel electrode on an inner surface of the second substrate;
a second retardation film on an outer surface of the second substrate, the second retardation film having a second optical axis;
a second polarizing plate on the second retardation film, the second polarizing plate having a second transmissive axis; and
a liquid crystal layer between the common electrode and the pixel electrode, the liquid crystal layer having a director, wherein the first optical axis has a first angle of θ
with respect to the first transmissive axis, the director has a second angle of 2θ
+45°
with respect to the first transmissive axis, the second optical axis has a third angle of 3θ
+90°
with respect to the first transmissive axis, and the second transmissive axis has a fourth angle of 4θ
with respect to the first transmissive axis.
2 Assignments
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Accused Products
Abstract
A transflective liquid crystal display device includes: first and second substrates facing and spaced apart from each other, the first and second substrates having reflective and transmissive portions; a first retardation film on an outer surface of the first substrate, the first retardation film having a first optical axis; a first polarizing plate on the first retardation film, the first polarizing plate having a first transmissive axis; a common electrode on an inner surface of the first substrate; a pixel electrode on an inner surface of the second substrate; a second retardation film on an outer surface of the second substrate, the second retardation film having a second optical axis; a second polarizing plate on the second retardation film, the second polarizing plate having a second transmissive axis; and a liquid crystal layer between the common electrode and the pixel electrode, the liquid crystal layer having a director, wherein the first optical axis has a first angle of θ with respect to the first transmissive axis, the director has a second angle of 2θ+45° with respect to the first transmissive axis, the second optical axis has a third angle of 3θ+90° with respect to the first transmissive axis, and the second transmissive axis has a fourth angle of 4θ with respect to the first transmissive axis.
12 Citations
14 Claims
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1. A transflective liquid crystal display device, comprising:
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first and second substrates facing and spaced apart from each other, the first and second substrates having reflective and transmissive portions;
a first retardation film on an outer surface of the first substrate, the first retardation film having a first optical axis;
a first polarizing plate on the first retardation film, the first polarizing plate having a first transmissive axis;
a common electrode on an inner surface of the first substrate;
a pixel electrode on an inner surface of the second substrate;
a second retardation film on an outer surface of the second substrate, the second retardation film having a second optical axis;
a second polarizing plate on the second retardation film, the second polarizing plate having a second transmissive axis; and
a liquid crystal layer between the common electrode and the pixel electrode, the liquid crystal layer having a director, wherein the first optical axis has a first angle of θ
with respect to the first transmissive axis, the director has a second angle of 2θ
+45°
with respect to the first transmissive axis, the second optical axis has a third angle of 3θ
+90°
with respect to the first transmissive axis, and the second transmissive axis has a fourth angle of 4θ
with respect to the first transmissive axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A fabricating method of a transflective liquid crystal display device, comprising:
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forming a common electrode on a first substrate having reflective and transmissive portions;
forming a pixel electrode on a second substrate having the reflective and transmissive portions;
attaching the first and second substrates such that the common electrode faces the pixel electrode;
forming a liquid crystal layer between the common electrode and the pixel electrode, the liquid crystal layer having a director, forming a first retardation film on an outer surface of the first substrate, the first retardation film having a first optical axis;
forming a first polarizing plate on the first retardation film, the first polarizing plate having a first transmissive axis;
forming a second retardation film on an outer surface of the second substrate, the second retardation film having a second optical axis; and
forming a second polarizing plate on the second retardation film, the second polarizing plate having a second transmissive axis, wherein the first optical axis has a first angle of θ
with respect to the first transmissive axis, the director has a second angle of 2θ
+45°
with respect to the first transmissive axis, the second optical axis has a third angle of 3θ
+90°
with respect to the first transmissive axis, and the second transmissive axis has a fourth angle of 4θ
with respect to the first transmissive axis. - View Dependent Claims (12, 13, 14)
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Specification
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- Resources
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Current AssigneeLG Display Co., Ltd.
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Original AssigneeLG Philips LCD Company Limited (LG Display Co., Ltd.)
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InventorsBaek, Heum-II
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Primary Examiner(s)Dudek, James A.
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Application NumberUS10/421,723Publication NumberTime in Patent Office922 DaysField of Search349/114, 349/102, 349/121, 349/103, 349/119US Class Current349/114CPC Class CodesG02F 1/133555 TransflectorsG02F 1/13362 providing polarized light, ...G02F 1/133638 Waveplates, i.e. plates wit...
