KR890007557A - Cursor Generation Circuit of LCD Monitor - Google Patents

Cursor Generation Circuit of LCD Monitor Download PDF

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Publication number
KR890007557A
KR890007557A KR870011804A KR870011804A KR890007557A KR 890007557 A KR890007557 A KR 890007557A KR 870011804 A KR870011804 A KR 870011804A KR 870011804 A KR870011804 A KR 870011804A KR 890007557 A KR890007557 A KR 890007557A
Authority
KR
South Korea
Prior art keywords
cursor
signal
output
comparator
flip
Prior art date
Application number
KR870011804A
Other languages
Korean (ko)
Other versions
KR940010480B1 (en
Inventor
한영진
Original Assignee
안시환
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 안시환, 삼성전자 주식회사 filed Critical 안시환
Priority to KR1019870011804A priority Critical patent/KR940010480B1/en
Publication of KR890007557A publication Critical patent/KR890007557A/en
Application granted granted Critical
Publication of KR940010480B1 publication Critical patent/KR940010480B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/14—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by means of electrically scanned solid-state devices

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

내용 없음No content

Description

액정 모니터의 커서 발생회로Cursor Generation Circuit of LCD Monitor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제 1 도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

제 2 도는 본 발명에 대한 커서의 발생을 나타내는 도면.2 shows the generation of a cursor for the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1-3 : 비교기 4-6 : D플립플롭1-3: Comparator 4-6: D flip flop

G1: 앤드게이트G 1 : Endgate

Claims (1)

액정 모니터의 커서를 발생하는데 있어서, 액정 콘트롤러내의 레지스터에서 커서의 상측 스타트라인을지정하는 신호(CUSU)와 라스터어드레스를 나타내는 실호(RA)가 인가되는 비교기(1)와 커서의 하측 앤드 라인을 지정하는 신호(CUSL)와 상기 신호(RA)가 인가되는 비교기(2)의 출력을 앤드게이트(G1)에 각각 연결하고, 커서의 위치를 지정하는 신호(CADR)와 비데오램을 액세스하는 신호(MADR)가 입력되는 비교기(3)의 출력을 앤드게이트(G1)에 연결하며, 앤드게이트(G1)의 출력을 플립플롭(4,6)의 입력(D1,D2)에 각각 연결하고, 플립플롭(4)의 출력(Q1)을 플립플롭(5)의 입력(D2)에 인가하여 클럭단자에 인가되는 신호(URD)에 의해 읽혀진 스크린의 상측 데이타가 신호(LRD)에 의해 스크린의 하측 데이타와 함께 출력되는 것을 특징으로 하는 액정모니터의 커서발생회로.In generating the cursor of the LCD monitor, a comparator 1 to which a signal CUSU specifying the upper start line of the cursor and a symbol RA representing a raster address are applied to a register in the LCD controller, and a lower end line of the cursor. The signal CUSL and the output of the comparator 2 to which the signal RA is applied are connected to the AND gate G 1 , respectively, and the signal CADR and the video for specifying the position of the cursor are accessed. The output of the comparator 3 to which the (MADR) is input is connected to the AND gate G 1 , and the output of the AND gate G 1 is connected to the inputs D 1 and D 2 of the flip-flops 4 and 6, respectively. The upper data of the screen read by the signal URD applied to the clock terminal by applying the output Q 1 of the flip-flop 4 to the input D 2 of the flip-flop 5. Cursor generation of the liquid crystal monitor characterized in that is outputted together with the lower data of the screen by A. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019870011804A 1987-10-23 1987-10-23 Cursor generating circuit for lcd monitor KR940010480B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019870011804A KR940010480B1 (en) 1987-10-23 1987-10-23 Cursor generating circuit for lcd monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019870011804A KR940010480B1 (en) 1987-10-23 1987-10-23 Cursor generating circuit for lcd monitor

Publications (2)

Publication Number Publication Date
KR890007557A true KR890007557A (en) 1989-06-20
KR940010480B1 KR940010480B1 (en) 1994-10-22

Family

ID=19265410

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870011804A KR940010480B1 (en) 1987-10-23 1987-10-23 Cursor generating circuit for lcd monitor

Country Status (1)

Country Link
KR (1) KR940010480B1 (en)

Also Published As

Publication number Publication date
KR940010480B1 (en) 1994-10-22

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