KR100760133B1 - 전력소모가 적은 에스티엔 엘시디 구동 드라이버 - Google Patents
전력소모가 적은 에스티엔 엘시디 구동 드라이버 Download PDFInfo
- Publication number
- KR100760133B1 KR100760133B1 KR1020010038821A KR20010038821A KR100760133B1 KR 100760133 B1 KR100760133 B1 KR 100760133B1 KR 1020010038821 A KR1020010038821 A KR 1020010038821A KR 20010038821 A KR20010038821 A KR 20010038821A KR 100760133 B1 KR100760133 B1 KR 100760133B1
- Authority
- KR
- South Korea
- Prior art keywords
- reference voltage
- liquid crystal
- driving signal
- multiplexer
- buffer
- Prior art date
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0297—Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Description
Claims (4)
- 다수의 기준전압을 생성하는 저항열;액정반전 구동신호에 응답하여 상기 저항열로 부터 제공되는 2개의 기준전압중 어느 하나를 출력하는 입력 선택부;상기 입력 선택부로부터 제공되는 기준전압을 입력받아 버퍼링하는 버퍼부; 및상기 액정반전 구동신호에 의하여 상기 버퍼부의 출력중 어느 하나를 출력하는 출력 선택부를 구비하는 전력소모가 적은 LCD 구동 드라이버.
- 제 1 항에 있어서,상기 입력 선택부는,두개의 짝수번째 기준전압을 입력으로 하고 액정 반전 구동신호에 응답하여 상기 두개의 짝수번째 기준전압중 하나를 출력하는 제1 멀티플렉서; 및두개의 홀수번째 기준전압을 입력으로 하고 액정 반전 구동신호에 응답하여 상기 두개의 홀수번째 기준전압중 하나를 출력하는 제2 멀티플렉서를 포함하는 전력소모가 적은 LCD 구동 드라이버.
- 제 2 항에 있어서,상기 버퍼부는,제1 기준전압을 입력으로 하는 제1 버퍼;상기 제1 기준전압을 제외한 상기 제1 멀티플렉서의 출력을 입력으로 하는 제2 버퍼; 및상기 제1 기준전압을 제외한 상기 제2 멀티플렉서의 출력을 입력으로 하는 제3 버퍼를 포함하는 전력소모가 적은 LCD 구동 드라이버.
- 제 3 항에 있어서,상기 출력 선택부는,액정 반전 구동신호에 응답하여 상기 제2 버퍼의 출력중 하나를 짝수번째 출력단중 첫번째 또는 두번째에 출력하는 제3 멀티플렉서; 및액정 반전 구동신호에 응답하여 상기 제3 버퍼의 출력중 하나를 짝수번째 출력단중 첫번째 또는 두번째에 출력하는 제4 멀티플렉서를 포함하는 전력소모가 적은 LCD 구동 드라이버.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010038821A KR100760133B1 (ko) | 2001-06-30 | 2001-06-30 | 전력소모가 적은 에스티엔 엘시디 구동 드라이버 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010038821A KR100760133B1 (ko) | 2001-06-30 | 2001-06-30 | 전력소모가 적은 에스티엔 엘시디 구동 드라이버 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030002083A KR20030002083A (ko) | 2003-01-08 |
KR100760133B1 true KR100760133B1 (ko) | 2007-09-18 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020010038821A KR100760133B1 (ko) | 2001-06-30 | 2001-06-30 | 전력소모가 적은 에스티엔 엘시디 구동 드라이버 |
Country Status (1)
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KR (1) | KR100760133B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100465539B1 (ko) * | 2001-12-27 | 2005-01-13 | 매그나칩 반도체 유한회사 | 에스티엔 엘시디 패널 구동 회로 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10260664A (ja) * | 1997-01-16 | 1998-09-29 | Nec Corp | 液晶駆動回路とこれを用いた液晶装置 |
JPH1195729A (ja) * | 1997-09-24 | 1999-04-09 | Texas Instr Japan Ltd | 液晶ディスプレイ用信号線駆動回路 |
KR19990026585A (ko) * | 1997-09-25 | 1999-04-15 | 윤종용 | 액정 표시 장치의 계조 전압 발생 회로 |
KR100614471B1 (ko) * | 1999-08-19 | 2006-08-22 | 후지쯔 가부시끼가이샤 | Lcd패널 구동 회로 |
-
2001
- 2001-06-30 KR KR1020010038821A patent/KR100760133B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10260664A (ja) * | 1997-01-16 | 1998-09-29 | Nec Corp | 液晶駆動回路とこれを用いた液晶装置 |
JPH1195729A (ja) * | 1997-09-24 | 1999-04-09 | Texas Instr Japan Ltd | 液晶ディスプレイ用信号線駆動回路 |
KR19990026585A (ko) * | 1997-09-25 | 1999-04-15 | 윤종용 | 액정 표시 장치의 계조 전압 발생 회로 |
KR100614471B1 (ko) * | 1999-08-19 | 2006-08-22 | 후지쯔 가부시끼가이샤 | Lcd패널 구동 회로 |
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KR20030002083A (ko) | 2003-01-08 |
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