Matrix-driven display apparatus and a method for driving the same

• US 6,225,967 B1
• Filed: 06/11/1997
• Issued: 05/01/2001
• Est. Priority Date: 06/19/1996
• Status: Expired due to Term

• Current Assignee: Kamdes IP Holding LLC, LG Display Co., Ltd.
• Original Assignee: ALPS Electric Company Limited (Alps Alpine Co., Ltd.)
• Inventors: Hebiguchi, Hiroyuki
• Primary Examiner(s): Cuchlinski, Jr., William A.
• Assistant Examiner(s): Marc-Coleman, Marthe Y.
• Application Number:
  US08/872,730
• Time in Patent Office: 1,420 Days
• Field of Search: 345/88, 345/89, 345/83, 345/211
• US Class Current: 345/88
• CPC Class Codes: G09G 2300/0408 Integration of the drivers onto the display substrate
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2310/0227 related to multiple interlacing, i.e. involving more fields than just one odd field and one even field
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 3/3607 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127
• CPC Class Codes: G09G 3/3648 using an active matrix G09G3/367 - G09G3/3696 take precedence
• CPC Class Codes: G09G 3/3677 suitable for active matrices only
• CPC Class Codes: G09G 3/3688 suitable for active matrices only

Abstract

Disclosed herein are a liquid-crystal display capable of reducing the required number of source drivers expensive and having large power consumption, which are used in the display, and providing a cost reduction and less power consumption of the display, and a method of driving the display.

In the display according to the present invention, pixels for displaying one color by utilizing a plurality of fundamental colors in combination are arranged in large numbers. The large number of pixels are matrix-driven by a large number of scanning lines and a large number of signal lines. Further, the combinations of the plurality of fundamental colors are repeatedly arranged along the directions of the respective signal lines. The number of the scanning lines is set to several times the number of the fundamental colors with respect to the total number of pixels arranged along the signal lines.

Claims

1. A display comprising:

a plurality of pixels arranged in a matrix, each pixel containing a set of three dots, each of said three dots having any one fundamental color among three fundamental colors respectively being red, green and blue, the plurality of pixels operative to display one color by utilizing said three fundamental colors in combination;

a plurality of scanning lines, each scanning line defining a row of the matrix and being separated by a dot; and

a plurality of signal lines, each signal line defining a column of the matrix, each pixel being driven by a signal line and three scanning lines and each dot being driven by a scanning line and a signal line;

wherein the pixels are arranged along the signal lines such that the set of three dots contained in the pixels disposed along each signal line are repeated in each pixel in a set order and the dots disposed along each scanning line are repeated in a predetermined order; and

the number of the scanning lines is set to the number of pixels arranged along the signal lines multiplied by the number of fundamental colors, the number of dots arranged along each signal line is set to the multiplied number, and the number of dots arranged along each scanning line is set to be equal to the number of pixels arranged along each scanning line.

2. A display according to claim 1, wherein the three fundamental colors respectively being red, green and blue, arranged along the signal lines, are repeatedly set to the same sequence along the signal lines and the same fundamental colors are arranged along the scanning lines.

3. A display according to claim 1, wherein the three fundamental colors respectively being red, green and blue, arranged along the signal lines, are repeatedly set to the same sequence along the signal lines, the same fundamental colors are respectively arranged diagonally with respect to the signal lines, and fundamental colors different from each others are arranged to adjoint along the scanning lines.

4. A display having the structure according to claim 1 further comprising a scanning mechanism to successively scan all of scanning lines over one frame upon driving said display.

5. A display having the structure according to claim 4 further comprising:

a dividing mechanism to divide one frame into a plurality of fields, and to perform interlaced scanning for each of the plurality of fields; and

a switching mechanism to change between said scanning mechanism and said dividing mechanism.

6. A display having the structure according to claim 1 further comprising a dividing mechanism to divide one frame into a plurality of fields, and to perform interlaced scanning for each of the plurality of fields.

7. A display having the structure according to claim 1 further comprising:

a dividing mechanism to divide one frame into a plurality of fields, and to perform interlaced scanning for each of the plurality of fields; and

a scanning mechanism to successively scan all of scanning lines associated with one frame; and

a switching mechanism to change between said said dividing mechanism and scanning mechanism.