KR20000055940A - 엘씨디 소스 드라이버 - Google Patents
엘씨디 소스 드라이버 Download PDFInfo
- Publication number
- KR20000055940A KR20000055940A KR1019990004854A KR19990004854A KR20000055940A KR 20000055940 A KR20000055940 A KR 20000055940A KR 1019990004854 A KR1019990004854 A KR 1019990004854A KR 19990004854 A KR19990004854 A KR 19990004854A KR 20000055940 A KR20000055940 A KR 20000055940A
- Authority
- KR
- South Korea
- Prior art keywords
- node
- decoder
- digital
- signal
- digital data
- Prior art date
Links
Classifications
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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
- G09G3/3685—Details of drivers for data electrodes
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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
- G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
-
- 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
- G09G2310/0286—Details of a shift registers arranged for use in a driving circuit
-
- 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
- G09G2310/0289—Details of voltage level shifters arranged for use in a driving circuit
-
- 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
- G09G2310/0291—Details of output amplifiers or buffers arranged for use in a driving circuit
-
- 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
Landscapes
- 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)
Abstract
Description
Claims (4)
- 디지털 데이터가 입력되면 이를 내부 레지스터에 저장한후 그 디지털 데이터를 출력하는 디지털제어부와, 상기 디지털제어부의 디지털데이터를 입력받아 저항열에 의해 변환하고자 하는 상위비트에 대하여만 디코딩한후 이를 아나로그신호로 변환하여 출력하는 다수의 채널과, 상기 다수의 채널중 6개 채널씩 연결되어 그 각 채널에 상기 디지털제어부의 디지털데이터를 래치제어신호에 의해 저장하는 다수의 시프트레지스터와, 상기 다수의 채널에 대한 변환을 위해 상위 비트수에 대한 저항수만으로 전압을 분할하는 전압분할부로 구성한 것을 특징으로 하는 엘씨디 소스 드라이버.
- 제1 항에 있어서, 채널은 디지털 데이터를 입력받아 이를 저장하는 2라인래치와, 상기 2라인래치로부터 데이터를 입력받아 이를 디코딩하는 디코더와, 상기 디코더의 출력신호를 입력받아 이 신호가 하이전압에서 동작가능하도록 레벨을 상승시키는 레벨시프터와, 상기 레벨시프터의 출력신호를 입력받아 상위 소정 비트에 해당하는 저항열에서 저항양단의 전압을 선택하여 디코딩하는 P-디코더및 N-디코더와, 상기 P-디코더및 N-디코더의 출력신호를 입력받아 극성에 따라 다중송신하여 그에 따른 포지티브신호및 네가티브신호를 출력하는 멀티플렉서와, 상기 멀티플렉서의 포지티브신호및 네가티브신호를 입력받아 이를 하위비트에 의한 스위치 온/오프 동작에 의해 변환하여 커패시터에 분할하여 충전하는 C-디지털/아나로그변환기와, 상기 C-디지털/아나로그변환기의 출력신호를 버퍼링하여 출력하는 버퍼로 구성한 것을 특징으로 하는 엘씨디 소스 드라이버.
- 제1 항에 있어서, 전압분할부는 하이전압과 로우전압 사이에 상위 소정비트수에 해당하는 소정개의 저항이 직렬 연결되어 구성한 것을 특징으로 하는 엘씨디 소스 드라이버.
- 제2 항에 있어서, C-디지털/아나로그변환기는 포지티브신호를 제1 스위치를 통해 노드A에 인가하고, 네카티브신호를 제2 스위치를 노드B에 인가하며, 포지티브신호를 제3 스위치를 통해 노드C에 인가하고, 상기 노드A와 노드B 사이에 제3 스위치를 접속하며, 상기 노드B와 노드C 사이에 제4 스위치를 접속하고, 상기 노드A,B,C를 각기 제1,제2,제3 커패시터를 통해 노드D에 접속하며, 상기 노드B와 노드D 사이에 제5 스위치를 접속하고, 상기 노드D에서 출력신호가 출력되도록 구성한 것을 특징으로 하는 엘씨디 소스 드라이버.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990004854A KR100295676B1 (ko) | 1999-02-11 | 1999-02-11 | 엘씨디 소스 드라이버 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990004854A KR100295676B1 (ko) | 1999-02-11 | 1999-02-11 | 엘씨디 소스 드라이버 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000055940A true KR20000055940A (ko) | 2000-09-15 |
KR100295676B1 KR100295676B1 (ko) | 2001-07-12 |
Family
ID=19574142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019990004854A KR100295676B1 (ko) | 1999-02-11 | 1999-02-11 | 엘씨디 소스 드라이버 |
Country Status (1)
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KR (1) | KR100295676B1 (ko) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100396427B1 (ko) * | 2001-08-20 | 2003-09-02 | (주)픽셀칩스 | 기준 전위 버스 라인의 수를 감소시키는 엘씨디 소스드라이버 |
KR100422593B1 (ko) * | 2001-05-03 | 2004-03-12 | 주식회사 하이닉스반도체 | 디코딩 장치 및 방법과 이를 사용한 저항열디지털/아날로그 컨버팅 장치 및 방법 |
KR100975814B1 (ko) * | 2008-11-14 | 2010-08-13 | 주식회사 티엘아이 | 레이아웃 면적을 감소시키는 소스 드라이버 |
US8963905B2 (en) | 2009-10-27 | 2015-02-24 | Silicon Works Co., Ltd. | Liquid crystal display panel driving circuit |
US9666155B2 (en) | 2014-01-24 | 2017-05-30 | Samsung Display Co., Ltd. | Data lines driver of display apparatus includng the same and method of driving display panel using the same |
-
1999
- 1999-02-11 KR KR1019990004854A patent/KR100295676B1/ko not_active IP Right Cessation
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100422593B1 (ko) * | 2001-05-03 | 2004-03-12 | 주식회사 하이닉스반도체 | 디코딩 장치 및 방법과 이를 사용한 저항열디지털/아날로그 컨버팅 장치 및 방법 |
KR100396427B1 (ko) * | 2001-08-20 | 2003-09-02 | (주)픽셀칩스 | 기준 전위 버스 라인의 수를 감소시키는 엘씨디 소스드라이버 |
KR100975814B1 (ko) * | 2008-11-14 | 2010-08-13 | 주식회사 티엘아이 | 레이아웃 면적을 감소시키는 소스 드라이버 |
US8963905B2 (en) | 2009-10-27 | 2015-02-24 | Silicon Works Co., Ltd. | Liquid crystal display panel driving circuit |
US9666155B2 (en) | 2014-01-24 | 2017-05-30 | Samsung Display Co., Ltd. | Data lines driver of display apparatus includng the same and method of driving display panel using the same |
Also Published As
Publication number | Publication date |
---|---|
KR100295676B1 (ko) | 2001-07-12 |
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