Thin film transistor panel and liquid crystal display using the same

• US 7,633,473 B2
• Filed: 12/14/2005
• Issued: 12/15/2009
• Est. Priority Date: 12/14/2004
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Cha, Sung-Eun, Jeong, Ki-Hun, Uh, Kee-Han, Yun, Hae-Young, Kim, Sang-Woo, Kim, Hyung-Guel, Kim, Jae-Hyun, Lee, Seung-Kyu, Lee, Jae-Young, Park, Won-Sang, Chang, Young-Joo, Lim, Jae-Ik, An, Bo-Young, Irina, Poundaleva
• Primary Examiner(s): Hjerpe; Richard
• Assistant Examiner(s): Shapiro; Leonid
• Application Number:
  US11/302,968
• Publication Number:
  US 20060158588A1
• Time in Patent Office: 1,462 Days
• Field of Search: 345 87- 89, 345/103
• US Class Current: 345/87
• CPC Class Codes: G02F 1/1333 Constructional arrangements; Manufacturing methodsG02F1/135, G02F1/136 take precedence
• CPC Class Codes: G02F 1/133317 Intermediate frames, e.g. between backlight housing and front frame
• CPC Class Codes: G02F 1/133391 Constructional arrangement for sub-divided displays
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/133555 Transflectors
• CPC Class Codes: G02F 1/133615 Edge-illuminating devices, i.e. illuminating from the side
• CPC Class Codes: G02F 1/13439 characterised by their electrical, optical, physical properties; materials therefor; method of making
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line

Abstract

An LCD device includes a transmissive LCD panel assembly, a backlight assembly for supplying light to the LCD panel assembly, and a selective reflection film provided between the backlight assembly and the LCD panel assembly. A display region of the LCD has a low-resolution area and a high-resolution area, and a pixel formed in the low-resolution area that is larger than a pixel formed in the high-resolution area.

Claims

1. A liquid crystal display device, comprising:

a low-resolution area;

a high-resolution area, wherein a pixel formed in the low resolution area is larger than a pixel formed in the high resolution area;

a transmissive liquid crystal display panel assembly, comprising;

a thin film transistor panel;

a color filter panel that is opposed to the thin film transistor panel with a predetermined interval therebetween;

a liquid crystal layer interposed between the thin film transistor panel and the color filter panel; and

a first polarizer and a second polarizer that are respectively provided on outer surfaces of the thin film transistor panel and the color filter panel;

a backlight assembly for supplying light to the liquid crystal display panel assembly; and

a selective reflection film provided between the backlight assembly and the liquid crystal display panel assembly;

a data driving chip mounted on the thin film transistor panel;

a first gate driving chip mounted on the thin film transistor panel to drive the low-resolution area; and

a second gate driving chip mounted on the thin film transistor panel to drive the high-resolution area.

2. A liquid crystal display device, comprising:

a low-resolution area;

a high-resolution area, wherein a pixel formed in the low resolution area is lager than a pixel formed in the high resolution area;

a transmissive liquid crystal display panel assembly, comprising;

a thin film transistor panel;

a color filter panel that is opposed to the thin film transistor panel with a predetermined interval therebetween;

a liquid crystal layer interposed between the thin film transistor panel and the color filter panel; and

a first polarizer and a second polarizer that are respectively provided on outer surfaces of the thin film transistor panel and the color filter panel;

a backlight assembly for supplying light to the liquid crystal display panel assembly; and

a selective reflection film provided between the backlight assembly and the liquid crystal display panel assembly;

a data driving chip mounted on the thin film transistor panel;

a first gate driving circuit formed in the thin film transistor panel to drive the low-resolution area; and

a second gate driving circuit formed in the thin film transistor panel to drive the high-resolution area.

3. A liquid crystal display device, comprising:

a low-resolution area;

a high-resolution area, wherein a pixel formed in the low resolution area is larger than a pixel formed in the high resolution area;

a transmissive liquid crystal display panel assembly, comprising;

a thin film transistor panel;

a color filter panel that is opposed to the thin film transistor panel with a predetermined interval therebetween;

a liquid crystal layer interposed between the thin film transistor panel and the color filter panel; and

a first polarizer and a second polarizer that are respectively provided on outer surfaces of the thin film transistor panel and the color filter panel;

a backlight assembly for supplying light to the liquid crystal display panel assembly; and

a selective reflection film provided between the backliqht assembly and the liquid crystal display panel assembly;

wherein the thin film transistor panel comprises;

a plurality of first gate lines formed in the low-resolution area;

a plurality of second gate lines formed in the high-resolution area;

a plurality of first data lines intersected with the first gate lines and the second gate lines, the plurality of first data lines being insulated from the first and second gate lines; and

a plurality of second data lines intersected with and insulated from the second gate lines, and not intersected with the first gate lines.

4. The liquid crystal display device of claim 3, wherein the first data lines and the second data lines are alternately arranged one by one.

5. The liquid crystal display device of claim 3, wherein an interval between two adjacent first gate lines is about twice as large as an interval between two adjacent second gate lines.

6. A liquid crystal display device, comprising:

a low-resolution area;

a high-resolution area, wherein a pixel formed in the low resolution area is larger than a pixel formed in the high resolution area;

a transflective liquid crystal display panel assembly, comprising;

a thin film transistor panel that includes a reflective electrode formed on a transparent electrode and having a transmissive window;

a color filter panel that is opposed to the thin film transistor panel with a predetermined interval therebetween;

a liquid crystal layer interposed between the thin film transistor panel and the color filter panel; and

a first polarizer and a second polarizer that are respectively provided on outer surfaces of the thin film transistor panel and the color filter panel;

a backlight assembly for supplying light to the liquid crystal display panel assembly;

wherein the thin film transistor panel comprises;

a plurality of first gate lines formed in the low-resolution area;

a plurality of second gate lines formed in the high-resolution area;

a plurality of first data lines that are intersected with and insulated from the first gate lines and the second gate lines; and

a plurality of second data lines that are intersected with and insulated from the second gate lines, and not intersected with the first gate lines.

7. The liquid crystal display device of claim 6, wherein the first data lines and the second data lines are alternately arranged one by one.

8. The liquid crystal display device of claim 6, wherein an interval between two adjacent first gate lines is about twice as large as an interval between two adjacent second gate lines.