Liquid crystal display apparatus

• US 20060109408A1
• Filed: 11/08/2005
• Published: 05/25/2006
• Est. Priority Date: 11/25/2004
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sekiuchi, Toshinobu, Akagi, Makoto, Kaida, Hirokazu
• Granted Patent: US 7,623,210 B2
• Time in Patent Office: Days
• US Class Current: 349/139
• CPC Class Codes: G02F 1/1362 Active matrix addressed cells G02F1/134336, G02F1/134363 take precedence
• CPC Class Codes: G02F 1/136218 Shield electrodes

Abstract

A liquid crystal display apparatus according to the present embodiment has pixel electrodes arranged in a first and a second directions crossed each other; a signal line formed in a lower layer of the pixel electrode and extending in the second direction between the pixel electrodes arranged in the first direction; a scan line formed in a lower layer of the pixel electrode and extending in the first direction; a switching device formed so as to correspond to the pixel electrodes and connected to the signal line, the scan line, and the pixel electrode; and an insulating layer formed between the pixel electrode and a lower layer including the signal line and the scan line, and having a surface step in a region between the pixel electrodes. An edge portion of the pixel electrode is formed to overlap the surface step of the insulating layer.

Claims

1. A liquid crystal display apparatus comprising:

a plurality of pixel electrodes arranged in a first direction and in a second direction perpendicular to the first direction;

a signal line formed in a lower layer of the pixel electrode and extending in the second direction between the pixel electrodes arranged in the first direction;

a scan line formed in a lower layer of the pixel electrode and extending in the first direction;

a switching device formed so as to correspond to the pixel electrodes and connected to the signal line, the scan line, and the pixel electrode; and

an insulating layer formed between the pixel electrode and a lower layer including the signal line and the scan line, and having a surface step in a region between the pixel electrodes arranged in the first direction,

wherein an edge portion of the pixel electrode is formed to overlap the surface step of the insulating layer.

2. A liquid crystal display apparatus as set forth in claim 1 further comprising a shield interconnection formed in a position corresponding to the signal line and the scan line in the insulating layer.

3. A liquid crystal display apparatus as set forth in claim 1, wherein a data signal of reversing a polarity of the pixel electrodes arranged in the second direction is supplied to the signal line.

4. A liquid crystal display apparatus comprising:

a plurality of pixel electrodes arranged in a first direction and in a second direction perpendicular to the first direction;

a signal line formed in a lower layer of the pixel electrode and extending in the second direction between the pixel electrodes arranged in the first direction;

a scan line formed in a lower layer of the pixel electrode and extending in the first direction;

a switching device formed so as to correspond to the pixel electrodes and connected to the signal line, the scan line, and the pixel electrode; and

an insulating layer formed between the pixel electrode and a lower layer including the signal line and the scan line,

wherein a distance from the signal line to a surface of the insulating layer is defined as 400 to 1200 nm in thickness.

5. A liquid crystal display apparatus as set forth in claim 4, wherein a data signal of reversing a polarity of the pixel electrodes arranged in the second direction is supplied to the signal line.

6. A liquid crystal display apparatus comprising:

a plurality of pixel electrodes arranged in a first direction and in a second direction perpendicular to the first direction;

a signal line formed in a lower layer of the pixel electrode and extending in the second direction between the pixel electrodes arranged in the first direction;

a scan line formed in a lower layer of the pixel electrode and extending in the first direction;

a switching device formed so as to correspond to the pixel electrodes and connected to the signal line, the scan line, and the pixel electrode;

an insulating layer formed among the pixel electrode and a lower layer including the signal line and the scan line, and having a surface step in a region between the pixel electrodes arranged in the first direction; and

a shield line formed at a position corresponding to the signal line and the scan line in the insulating layer,

wherein a distance from the shield line to a surface of the insulating layer is defined as 400 to 1200 nm in thickness.

7. A liquid crystal display apparatus as set forth in claim 6, wherein a data signal of reversing a polarity of the pixel electrodes arranged in the second direction is supplied to the signal line.