Liquid crystal device and electronic apparatus
First Claim
Patent Images
1. A liquid crystal device, comprising:
- a first substrate and a second substrate facing each other;
a liquid crystal layer disposed between the first substrate and the second substrate;
an aligning film which is disposed on a liquid crystal layer side surface of the second substrate and on which a rubbing processing is performed;
a plurality of sub-pixels arranged in planar regions of the first substrate and the second substrate;
source lines extending in a first direction;
gate lines extending in a second direction that is perpendicular to the first direction; and
a first electrode and a second electrode which are disposed on a liquid crystal layer side surface of the first substrate and which generate an electric field therebetween,wherein the second electrode includes a plurality of electrode line-shaped portions extending in the second direction, arranged in parallel to each other, and spaced apart from each other,wherein each sub-pixel includes a reflective display region in which a light reflective film is disposed and a transmissive display region in which a light reflective film is not disposed,wherein a layer thickness adjusting film, which allows the liquid crystal layer to have different layer thicknesses in the reflective display region and in the transmissive display region, is disposed between the second substrate and the aligning film,wherein the layer thickness adjusting film is disposed in a band form over a plurality of sub-pixels and extends in the second direction, the layer thickness adjusting film having a step portion with a step plane extending in a thickness direction of the layer thickness adjusting film near boundary portions between the reflective display region and the transmissive display region,wherein an angle between a rubbing direction in which a rubbing processing is performed and an extending direction of a boundary between the reflective display region and the transmissive display region is defined as α
, 0°
≦
α
≦
20°
,wherein ends of liquid crystal molecules, which are on a leading side of rubbing, are arranged so as to direct toward the step plane when a voltage is applied across the first electrode and the second electrode, andwherein the electrode line-shaped portions and the step plane extend in the second direction which is parallel to a lateral direction of the sub-pixels and parallel to the boundaries between the reflective display regions and the transmissive display regions, and an angle between the rubbing direction and the extending direction of the electrode line-shaped portion is defined as β
, 5°
≦
β
≦
20°
.
3 Assignments
0 Petitions
Accused Products
Abstract
A liquid crystal device includes a first substrate and a second substrate facing each other, a liquid crystal layer disposed between the first substrate and the second substrate, an aligning film which is disposed on a liquid crystal layer side surface of the second substrate and on which a rubbing processing is performed, a plurality of sub-pixels arranged in planar regions of the first substrate and the second substrate, a first electrode and a second electrode which are disposed on a liquid crystal layer side surface of the first substrate and which generate an electric field therebetween, in which the second electrode includes a plurality of electrode line-shaped portions arranged in parallel to each other and spaced apart from each other, each sub-pixel includes a reflective display region in which a light reflective film is disposed and a transmissive display region in which a light reflective film is not disposed.
7 Citations
17 Claims
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1. A liquid crystal device, comprising:
-
a first substrate and a second substrate facing each other; a liquid crystal layer disposed between the first substrate and the second substrate; an aligning film which is disposed on a liquid crystal layer side surface of the second substrate and on which a rubbing processing is performed; a plurality of sub-pixels arranged in planar regions of the first substrate and the second substrate; source lines extending in a first direction; gate lines extending in a second direction that is perpendicular to the first direction; and a first electrode and a second electrode which are disposed on a liquid crystal layer side surface of the first substrate and which generate an electric field therebetween, wherein the second electrode includes a plurality of electrode line-shaped portions extending in the second direction, arranged in parallel to each other, and spaced apart from each other, wherein each sub-pixel includes a reflective display region in which a light reflective film is disposed and a transmissive display region in which a light reflective film is not disposed, wherein a layer thickness adjusting film, which allows the liquid crystal layer to have different layer thicknesses in the reflective display region and in the transmissive display region, is disposed between the second substrate and the aligning film, wherein the layer thickness adjusting film is disposed in a band form over a plurality of sub-pixels and extends in the second direction, the layer thickness adjusting film having a step portion with a step plane extending in a thickness direction of the layer thickness adjusting film near boundary portions between the reflective display region and the transmissive display region, wherein an angle between a rubbing direction in which a rubbing processing is performed and an extending direction of a boundary between the reflective display region and the transmissive display region is defined as α
, 0°
≦
α
≦
20°
,wherein ends of liquid crystal molecules, which are on a leading side of rubbing, are arranged so as to direct toward the step plane when a voltage is applied across the first electrode and the second electrode, and wherein the electrode line-shaped portions and the step plane extend in the second direction which is parallel to a lateral direction of the sub-pixels and parallel to the boundaries between the reflective display regions and the transmissive display regions, and an angle between the rubbing direction and the extending direction of the electrode line-shaped portion is defined as β
, 5°
≦
β
≦
20°
. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A liquid crystal device, comprising:
-
a first substrate and a second substrate facing each other; a liquid crystal layer disposed between the first substrate and the second substrate; an aligning film which is disposed on a liquid crystal layer side surface of the second substrate and on which a rubbing processing is performed; a plurality of sub-pixels arranged in planar regions of the first substrate and the second substrate; and source lines extending in a first direction; gate lines extending in a second direction that is perpendicular to the first direction; and a first electrode and a second electrode disposed on a liquid crystal layer side surface of the first substrate and which generates an electric field therebetween; wherein the second electrode includes a plurality of electrode line-shaped portions extending in the second direction, arranged in parallel to each other and spaced apart from each other, wherein each sub-pixel includes a reflective display region in which a light reflective film is disposed and a transmissive display region in which a light reflective film is not disposed, wherein a layer thickness adjusting film which intends to make the liquid crystal layer have different layer thicknesses in the reflective display region and the transmissive display layer is disposed between the second substrate and the aligning film, wherein the layer thickness adjusting film is disposed in a band form over a plurality of sub-pixels and extends in the second direction, the layer thickness adjusting film having a step portion having a step plane extending in a thickness direction of the layer thickness adjusting film near boundary portions of the reflective display region and the transmissive display region, wherein an angle between a rubbing direction and an extending direction of a boundary between the reflective display region and the transmissive display region is defined as α
, 0°
≦
α
≦
20°
,wherein the step plane is disposed at a position where ends of liquid crystal molecules, which are disposed on a leading side in a rubbing direction and move when a voltage is applied across the first electrode and the second electrode in the transmissive display region, abut against, and wherein the electrode line-shaped portions and the step plane extend in the second direction which is parallel to a lateral direction of the sub-pixels and parallel to the boundaries between the reflective display regions and the transmissive display regions, and an angle between the rubbing direction and the extending direction of the electrode line-shaped portion is defined as β
, 5°
≦
β
≦
20°
.
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17. A liquid crystal device, comprising:
-
a first substrate and a second substrate facing each other; a liquid crystal layer disposed between the first substrate and the second substrate; an aligning film on which a rubbing processing is performed and which is disposed on a liquid crystal layer side surface of the second substrate; a plurality of sub-pixels arranged in planar regions of the first substrate and the second substrate, source lines extending in a first direction; gate lines extending in a second direction that is perpendicular to the first direction; and a first electrode and a second electrode disposed on a liquid crystal side surface of the first substrate and which generates an electric field therebetween, wherein the second electrode has a plurality of electro line-shaped portions extending in the second direction, arranged in parallel with each other, and spaced apart from each other, wherein each sub-pixel includes a reflective display region in which a light reflective film is disposed and a transmissive display region in which the light reflective film is not disposed, wherein a layer thickness adjusting film is disposed in a band form over a plurality of sub-pixels and extends in the second direction, the layer thickness adjusting film being formed between the second substrate and the aligning film in order to make the liquid crystal layer have different layer thicknesses in the reflective display region and in the transmissive display region different, wherein the layer thickness adjusting film has a step portion having a step plane extending in a layer thickness direction of the layer thickness adjusting film near boundary portions of the reflective display region and the transmissive display region, wherein an angle between a rubbing direction and an extending direction of boundaries between the reflective display region and the transmissive display region is defined as α
,0°
≦
α
≦
20°
,wherein liquid crystal molecules in the liquid crystal layer are initially aligned at a pre-tilt angle to a surface of the aligning film, and wherein the step plane is arranged at a position where ends of the liquid crystal molecules, which are separated from the surface of the aligning film, of both ends of the liquid crystal molecules aligned at the pre-tilt angle when an electric field is generated between the first electrode and the second electrode, move in the transmissive display region, and wherein the electrode line-shaped portions and the step plane extend in the second direction which is parallel to a lateral direction of the sub-pixels and parallel to the boundaries between the reflective display regions and the transmissive display region, and an angle between the rubbing direction and the extending direction of the electrode line-shaped portion is defined as β
, 5°
≦
β
≦
20°
.
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Specification
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Current AssigneeJapan Display West Incorporated (Japan Display Incorporated)
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Original AssigneeSony Corporation (Sony Group Corp.)
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InventorsWada, Hiroshi
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Primary Examiner(s)Merlin, Jessica M
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Application NumberUS11/979,001Publication NumberTime in Patent Office1,904 DaysField of Search349/114, 349/126, 349/141US Class Current349/114CPC Class CodesG02F 1/133555 TransflectorsG02F 1/133784 by rubbingG02F 1/134363 for applying an electric fi...
