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US 8,134,672 B2Granted
Liquid crystal device and electronic apparatus
AssigneeSony Corporation
InventorsShin Fujita, Shin Koide
Life of this patent
Estimating the term…
Abstract
A liquid crystal device includes a substrate for holding a liquid crystal. The substrate includes switching elements, a first insulating layer which overlies the switching elements and which has contact holes located at positions corresponding to the switching elements, first transparent electrodes which overlie the first insulating layer and which are electrically connected to the switching elements through the contact holes, a second insulating layer overlying the first transparent electrodes, and second transparent electrodes which overlie the second insulating layer and which each have a plurality of slits for generating electric fields between the first and second transparent electrodes, the second transparent electrodes not overlapping the contact holes in plan view.
Claims12
A liquid crystal device comprising:
- a substrate for holding a liquid crystal, the substrate including:
- (a) switching elements,
- (b) a first insulating layer which overlies the switching elements and which has contact holes located at positions corresponding to the switching elements,
- (c) first transparent electrodes which overlie the first insulating layer and which are electrically connected to the switching elements through the contact holes,
- (d) a second insulating layer overlying and in contact with the first transparent electrodes both in and outside the contact holes, and
- (e) second transparent electrodes which overlie the second insulating layer and which each has a plurality of slits for generating electric fields between the first and second transparent electrodes, the second transparent electrodes not overlapping the contact holes in plan view, the second transparent electrodes having notches with an area greater than that of the contact holes, the notches each being (1) located at a position corresponding to a respective one of the contact holes and (2) connected to a slit in the second transparent electrode that is located near the contact hole, wherein
- (i) a film thickness of a portion of the second insulating layer which is inside the contact holes and is also in contact with the first transparent electrodes is thinner than the film thickness of another portion of the second insulating layer which is outside the contact holes and is also in contact with the first transparent electrodes, and
- (ii) a direction of the film thickness is normal to the substrate.
5 more elements
An electronic apparatus comprising:
- a display section including a liquid crystal device which includes a substrate for holding a liquid crystal, the substrate including:
- (a) switching elements,
- (b) a first insulating layer which overlies the switching elements and which has contact holes located at positions corresponding to the switching elements,
- (c) first transparent electrodes which overlie the first insulating layer and which are electrically connected to the switching elements through the contact holes,
- (d) a second insulating layer overlying and in contact with the first transparent electrodes both in and outside the contact holes, and
- (e) second transparent electrodes which overlie the second insulating layer and which each has a plurality of slits for generating electric fields between the first and second transparent electrodes, the second transparent electrodes not overlapping the contact holes in plan view, the second transparent electrodes having notches with an area greater than that of the contact holes, the notches each being (1) located at a position corresponding to a respective one of the contact holes and (2) connected to a slit in the second transparent electrode that is located near the contact hole, wherein
- (i) a film thickness of a portion of the second insulating layer which is inside the contact holes and is also in contact with the first transparent electrodes is thinner than the film thickness of another portion of the second insulating layer which is outside the contact holes and is also in contact with the first transparent electrodes, and
- (ii) a direction of the film thickness is normal to the substrate.
5 more elements
A liquid crystal device comprising:
- a color filter substrate;
- a substrate for holding liquid crystal including:
- (a) a switching element;
- (b) a first insulating layer disposed above the switching element, the insulating layer containing a contact hole at a position corresponding to the switching element;
- (c) a first electrode overlying the first insulating layer and electrically connected to the switching element through the contact hole;
- (d) a second insulating layer overlying and in contact with the first electrode both in and outside the contact hole;
- and
- (e) a second electrode disposed above the first electrode, the second electrode having a plurality of slits and an opening at a position corresponding to the contact hole, the opening being larger than the contact hole, wherein
- (i) a film thickness of a portion of the second insulating layer which is inside the contact hole and is also in contact with the first electrode is thinner than the film thickness of another portion of the second insulating layer which is outside the contact hole and is also in contact with the first electrode, and
- (ii) a direction of the film thickness is normal to the substrate;
- and
- (iii) the color filter substrate includes a light-shielding layer disposed above the liquid crystal, the light-shielding layer having a portion that overlaps the opening and a portion that overlaps the first or second lines, and
- liquid crystal disposed between the color filter substrate and the substrate for holding liquid crystal.
10 more elements
Dependencies are inferred from the claim text.