KR970076229A - System for Horizontal Scrolling of Display Data - Google Patents
System for Horizontal Scrolling of Display Data Download PDFInfo
- Publication number
- KR970076229A KR970076229A KR1019970019764A KR19970019764A KR970076229A KR 970076229 A KR970076229 A KR 970076229A KR 1019970019764 A KR1019970019764 A KR 1019970019764A KR 19970019764 A KR19970019764 A KR 19970019764A KR 970076229 A KR970076229 A KR 970076229A
- Authority
- KR
- South Korea
- Prior art keywords
- data
- horizontal
- shift
- lcd
- scroll
- Prior art date
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/34—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators for rolling or scrolling
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
-
- 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
- G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
- G09G3/16—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source
- G09G3/18—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source using liquid crystals
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
마이크로컨트롤러(20)가 전체 RAM를 재기록하지 않고도 LCD 패널(27) 상의 메시지의 수평 스크롤링이 가능하도록 하기 위하여, 수평 시프트 값(HSV)보다 적은 수의 사이클로 수평 시프트 값(HSV)만큼 데이터가 시프트될 수 있도록 수평 스크롤링 컨트롤러(24)와 수평 스크롤링 시프트 레지스터(28)가 제공된다. 이는 수평 스크롤링 컨트롤러(24) 내에 수평 시프트 값(HSV)로부터 하향 카운트하는 MSB(35) 및 LSB(36) 카운터들을 제공함으로써 가능해지는데, MSB 카운터(35)는 하향 카운트하는 동안 수평 스크롤링 시프트 레지스터(28)에 시프트-바이-8 신호(Shift-by-8 signal)들을 제공하고 LSB 카운터(36)는 하향 카운트하는 동안 수평 스크롤링 시프트 레지스터(28)에 시프트-바이-1 신호(Shift-by-1 signal)들을 제공하며, 그에 따라 수평 스크롤링 시프트 레지스터(29)내의 데이터는 8의 블록 단위로 그리고 1의 블록 단위로 시프트될 수 있어 필요한 클록 사이클들이 저감된다.In order for the microcontroller 20 to be able to horizontally scroll messages on the LCD panel 27 without rewriting the entire RAM, data may be shifted by the horizontal shift value (HSV) in fewer cycles than the horizontal shift value (HSV). Horizontal scrolling controller 24 and horizontal scrolling shift register 28 are provided. This is made possible by providing MSB 35 and LSB 36 counters in the horizontal scrolling controller 24 that count down from the horizontal shift value (HSV), which is the horizontal scrolling shift register 28 during the down count. Shift-by-8 signals and the LSB counter 36 sends a shift-by-1 signal to the horizontal scrolling shift register 28 during down counting. ), So that the data in the horizontal scrolling shift register 29 can be shifted in blocks of 8 and in blocks of 1 so that the required clock cycles are reduced.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 LCD 드라이버 내의 수평 스크롤링 메커니즘의 일 실시예에 대한 기능 블록도.1 is a functional block diagram of one embodiment of a horizontal scrolling mechanism in an LCD driver.
제2도는 제1도의 메커니즘에 사용되는 수평 스크롤링 컨트롤러의 상세한 블록도.2 is a detailed block diagram of the horizontal scrolling controller used in the mechanism of FIG.
제3도는 제1도의 메커니즘에 사용되는 수평 스크롤링 시프트 레지스터의 상세한 블록도.3 is a detailed block diagram of the horizontal scrolling shift register used in the mechanism of FIG.
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG9609849-6 | 1996-05-21 | ||
SG1996098496 | 1996-05-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970076229A true KR970076229A (en) | 1997-12-12 |
KR100252446B1 KR100252446B1 (en) | 2000-04-15 |
Family
ID=20429411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970019764A KR100252446B1 (en) | 1996-05-21 | 1997-05-21 | A system for horizontal scrolling of display data |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP4001659B2 (en) |
KR (1) | KR100252446B1 (en) |
CN (1) | CN1139025C (en) |
SG (1) | SG49954A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100414033B1 (en) * | 2001-02-09 | 2004-01-07 | 가부시끼가이샤 도시바 | Ram embedding type display driver and display device mounting thereof |
JP4148170B2 (en) * | 2004-03-23 | 2008-09-10 | セイコーエプソン株式会社 | Display driver and electronic device |
CN100565661C (en) * | 2006-02-24 | 2009-12-02 | 奇景光电股份有限公司 | Driving circuit and method for making picture horizontally rolling and electronic device using same |
CN108152166B (en) * | 2017-11-24 | 2020-05-15 | 中国电子科技集团公司第四十八研究所 | Elastic flow type gas-liquid two-phase flow gas-phase volume measuring device and measuring method |
TWI745757B (en) * | 2018-10-01 | 2021-11-11 | 矽創電子股份有限公司 | Source driver and composite level shifter |
-
1996
- 1996-05-21 SG SG1996009849A patent/SG49954A1/en unknown
-
1997
- 1997-05-20 CN CNB971131139A patent/CN1139025C/en not_active Expired - Fee Related
- 1997-05-21 JP JP14856097A patent/JP4001659B2/en not_active Expired - Fee Related
- 1997-05-21 KR KR1019970019764A patent/KR100252446B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP4001659B2 (en) | 2007-10-31 |
KR100252446B1 (en) | 2000-04-15 |
SG49954A1 (en) | 1998-06-15 |
CN1170183A (en) | 1998-01-14 |
CN1139025C (en) | 2004-02-18 |
JPH1055157A (en) | 1998-02-24 |
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