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US 9,316,872 B2Granted
Liquid crystal display device that expands the transmissive area
AssigneeJapan Display Inc.
InventorJin Hirosawa
Life of this patent
Estimating the term…
Abstract
An array substrate includes a semiconductor layer, a first insulating film covering the semiconductor layer, a gate line extending in a first direction on the first insulating film, a second insulating film covering the gate line, a source line extending in a second direction orthogonally crossing the first direction on the second insulating film. A contact portion is formed on the second insulating film. The contact portion contacts with the semiconductor layer. A third insulating film covers the source line and exposing the contact portion and the second insulating film in a circumference of the contact portion.
Claims19
A liquid crystal display device, comprising:
- a first substrate including;
- a semiconductor layer,
- a first insulating film covering the semiconductor layer,
- a gate line extending in a first direction on the first insulating film,
- a second insulating film covering the gate line,
- a source line extending in a second direction orthogonally crossing the first direction on the second insulating film,
- a contact portion formed on the second insulating film, the contact portion contacting with the semiconductor layer,
- a third insulating film covering the source line and exposing the contact portion and the second insulating film in a circumference of the contact portion,
- a sub-common electrode extending in the first direction so as to face the gate line and crossing the source line on the third insulating film,
- a first main-common electrode connected with the sub-common electrode and extending along the source line in the second direction on the third insulating film,
- a fourth insulating film covering the sub-common electrode and the first main-common electrode,
- a second main-common electrode extending in the second direction on the fourth insulating film, the second main-common electrode facing the source line and being set to the same potential as the first main-common electrode,
- a pixel electrode including a main pixel electrode apart from the second main-common electrode and extending in the second direction on the fourth insulating film, the pixel electrode being electrically connected with the contact portion, and
- a first alignment film covering the second main-common electrode and the pixel electrode,
- a second substrate arranged so as to face the first substrate;
- and
- a liquid crystal layer held between the first substrate and the second substrate.
14 more elements
A liquid crystal display device, comprising:
- a first substrate including;
- a semiconductor layer,
- a first insulating film covering the semiconductor layer,
- a gate line formed on the first insulating film and extending in a first direction,
- a second insulating film covering the gate line,
- a source line extending in a second direction orthogonally crossing the first direction on the second insulating film,
- a contact portion formed on the second insulating film, the contact portion contacting with the semiconductor layer,
- a third insulating film covering the source line and exposing the contact portion and the second insulating film in a circumference of the contact portion,
- a first main-common electrode extending along the source line in the second direction on the third insulating film,
- a fourth insulating film covering the first main-common electrode,
- a second main-common electrode extending in the second direction on the fourth insulating film, the second main-common electrode facing the source line and being set to the same potential as the first main-common electrode, and
- a pixel electrode including a main pixel electrode apart from the second main-common electrode and extending in the second direction on the fourth insulating film, the pixel electrode being electrically connected with the contact portion, and
- a first alignment film covering the second main-common electrode and the pixel electrode,
- a second substrate arranged so as to face the first substrate;
- and
- a liquid crystal layer held between the first substrate and the second substrate.
13 more elements
A liquid crystal display device, comprising:
- a first substrate including;
- a semiconductor layer,
- a first insulating film covering the semiconductor layer,
- a gate line extending in a first direction on the first insulating film,
- a second insulating film covering the gate line,
- a source line extending in a second direction orthogonally crossing the first direction on the second insulating film,
- a contact portion formed on the second insulating film, the contact portion contacting with the semiconductor layer,
- a third insulating film covering the source line, and exposing the contact portion and the second insulating film in a circumference of the contact portion,
- a sub-common electrode extending in the first direction so as to face the gate line and crossing the source line on the third insulating film,
- a fourth insulating film covering the sub-common electrode,
- a first main-common electrode extending in the second direction on the fourth insulating film, the first main-common electrode facing the source line, and
- a pixel electrode including a main pixel electrode apart from the first main-common electrode and extending in the second direction on the fourth insulating film, the pixel electrode being electrically connected with the contact portion, and
- a first alignment film covering the first main-common electrode and the pixel electrode,
- a second substrate arranged so as to face the first substrate, and
- a liquid crystal layer held between the first substrate and the second substrate.
12 more elements
Dependencies are inferred from the claim text.