LIQUID CRYSTAL DISPLAY PANEL

• US 20140340605A1
• Filed: 05/02/2014
• Published: 11/20/2014
• Est. Priority Date: 05/15/2013
• Status: Abandoned Application

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: TAKEDA, Kazuhiro, NAGANO, Shingo, HOKA, Naruhito, MIYAKE, Shiro
• Application Number:
  US14/268,268
• Publication Number:
  US 20140340605A1
• Time in Patent Office: Days
• US Class Current: 349/43
• CPC Class Codes: G02F 1/134363 for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
• CPC Class Codes: G02F 2202/22 Antistatic materials or arrangements

Abstract

A liquid crystal panel includes a TFT array substrate and an opposite substrate, which are arranged opposite to each other. The TFT array substrate has a gate lead wire that draws a gate wire, connected to a gate electrode of a TFT, to a frame area outside a display area. A conductive layer that covers an outermost surface of the TFT array substrate is provided in the frame area on all sides including a side where the gate lead wire is not arranged.

Claims

1. A liquid crystal display panel of a transverse electric field mode comprising:

a TFT array substrate on which a TFT (Thin Film Transistor) for each pixel is arranged;

an opposite substrate arranged opposite to said TFT array substrate, said opposite substrate including a shield conductive layer on an outer surface; and

a liquid crystal layer sandwiched between said TFT array substrate and said opposite substrate, wherein

said TFT array substrate comprises;

a gate wire connected to a gate electrode of said TFT;

a gate lead wire that draws said gate wire to a frame area outside a display area; and

a conductive layer that covers an outermost surface of said TFT array substrate in said frame area on all sides including a side where said gate lead wire is not arranged.

2. The liquid crystal display panel according to claim 1, wherein said shield conductive layer is in a floating condition not fixed to a specific potential.

3. The liquid crystal display panel according to claim 1, wherein a common potential that is a potential of a common electrode of each pixel is supplied to said conductive layer.

4. The liquid crystal display panel according to claim 1, wherein said conductive layer is made of a transparent conductive film same as that of a pixel electrode or a common electrode of each pixel.

5. The liquid crystal display panel according to claim 1, wherein said conductive layer is made of a metal film.

6. The liquid crystal display panel according to claim 1, wherein said opposite substrate further comprises a black matrix, which is formed by dispersing black particles into resin, on a surface close to said liquid crystal layer.

7. The liquid crystal display panel according to claim 2, wherein said shield conductive layer is a light-shielding conductive film forming a parallax barrier.

8. The liquid crystal display panel according to claim 2, wherein said shield conductive layer is a transparent conductive film provided between a touch panel arranged on a front surface of said opposite substrate and said opposite substrate as a noise shield.

9. The liquid crystal display panel according to claim 1, further comprising:

a seal material that is formed on said frame area between said TFT array substrate and said opposite substrate for sealing said liquid crystal layer, wherein

a resistance value on a surface of said seal material is smaller than a resistance value of said liquid crystal layer.

10. The liquid crystal display panel according to claim 1, further comprising:

a seal material that is formed on said frame area between said TFT array substrate and said opposite substrate for sealing said liquid crystal layer, wherein

said seal material is made of a conductive material.