LIQUID CRYSTAL DISPLAY DEVICE AND TELEVISION RECEIVER

• US 20090046212A1
• Filed: 09/29/2006
• Published: 02/19/2009
• Est. Priority Date: 01/30/2006
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Tsubata, Toshihide, Hirata, Mitsuaki
• Application Number:
  US12/095,869
• Publication Number:
  US 20090046212A1
• Time in Patent Office: Days
• US Class Current: 348/790
• CPC Class Codes: G02F 1/13471 in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells G02F1/13475 takes precedence
• CPC Class Codes: G02F 1/136209 Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
• CPC Class Codes: G09G 2300/023 Display panel composed of stacked panels
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence
• CPC Class Codes: H04N 5/645 Mounting of picture tube on chassis or in housing
• CPC Class Codes: H04N 5/66 Transforming electric information into light information scanning details H04N3/00

Abstract

A liquid crystal display device of the present invention combines two active matrix type liquid crystal panels (a first panel and a second panel). A data signal wiring (4) of each panel is formed by a transparent conductive film, and an island-like black matrix (24) is formed so as to cover a TFT element (3). By such structure, a moire which markedly occurs when combining two or more active matrix type liquid crystal panels is restrained, and the transmittance is improved. Thus, a high display quality liquid crystal display device is provided.

Claims

1. A liquid crystal display device in which two or more active matrix liquid crystal panels are combined, wherein:

at least one of the two or more liquid crystal panels includes signal wiring made of transparent conductive film.

2. The liquid crystal display device as set forth in claim 1, wherein the two or more liquid crystal panels are first and second liquid crystal panels, and at least one of the first and second liquid crystal panels includes signal wiring formed by a transparent electrode.

3. The liquid crystal display device as set forth in claim 1, wherein each of the liquid crystal panels is sandwiched between polarized light absorbing layers, and polarized light absorbing layers form crossed Nicols.

4. The liquid crystal display device as set forth in claim 1, wherein a light blocking layer is formed on an upper part and/or a lower part of a switching element of an active matrix substrate which constitutes each of the liquid crystal panels.

5. A television receiver comprising:

a tuner section that receives television broadcast; and

a display device that displays the television broadcast received by the tuner section, wherein;

the display device is a liquid crystal display device in which two or more active matrix liquid crystal panels are combined, wherein at least one of the two more liquid crystal panels includes signal wiring made of transparent conductive film