KR970017142A - Liquid Crystal Driving Voltage Generator - Google Patents

Liquid Crystal Driving Voltage Generator Download PDF

Info

Publication number
KR970017142A
KR970017142A KR1019950031416A KR19950031416A KR970017142A KR 970017142 A KR970017142 A KR 970017142A KR 1019950031416 A KR1019950031416 A KR 1019950031416A KR 19950031416 A KR19950031416 A KR 19950031416A KR 970017142 A KR970017142 A KR 970017142A
Authority
KR
South Korea
Prior art keywords
voltage
liquid crystal
generator
voltage generator
driving
Prior art date
Application number
KR1019950031416A
Other languages
Korean (ko)
Inventor
박상호
Original Assignee
김광호
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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019950031416A priority Critical patent/KR970017142A/en
Publication of KR970017142A publication Critical patent/KR970017142A/en

Links

Landscapes

  • Liquid Crystal (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

이 발명은 액정 구동용 전압 발생기에 관한 것으로서, 더욱 상세하게 말하자면 집적 회로으로 인가되는 두가지의 전압중에 낮은 레벨의 로직 전압을 높은 레벨의 액정 구동용 전압보다 먼저 인가되도록 하여 집적 회로의 오동작이 발생되는 것을 방지하는 액정 구동용 전압 발생기에 관한 것으로, 이 발명의 실시예에서, 집적 회로로 인가되는 두가지의 전압에서 3V의 주전압원(100)을 인가받아 상대적으로 저레벨의 전압인 -5V의 전압을 제1직류 전압 변환기(200)에서 출력하고, 상기 제1직류 전압 변환기(200)의 출력 전압을 상기 제2직류 전압 변환기(300)에서 입력받아 순간적으로 발생하는 돌입 전류에 대한 회로가 오동작으로 하게 되는 요소를 방지하는 효과를 가진 액정 구동용 전안 발생기를 제공할 수 있다.The present invention relates to a voltage generator for driving a liquid crystal. More specifically, a logic voltage of a low level is applied before a high level liquid crystal driving voltage among two voltages applied to an integrated circuit. The present invention relates to a voltage generator for driving a liquid crystal, and in this embodiment of the present invention, a voltage of -5V, which is a relatively low level voltage, is received by receiving the main voltage source 100 of 3V from two voltages applied to an integrated circuit. The circuit for the inrush current that is output from the first DC voltage converter 200 and the output voltage of the first DC voltage converter 200 is input from the second DC voltage converter 300 to generate an instant is malfunctioning. It is possible to provide a liquid crystal driving vision generator having an effect of preventing an element.

Description

액정 구동용 전압 발생기Liquid Crystal Driving Voltage Generator

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래의 액정 구동용 전압 발생기의 블럭도이고,1 is a block diagram of a conventional liquid crystal driving voltage generator,

제2도는 이 발명의 실시예에 따른 액정 구동용 전압 발생기의 블럭도이고,2 is a block diagram of a voltage generator for driving a liquid crystal according to an embodiment of the present invention,

제5도는 피 웰 구조를 갖는 집적 회로내에서의 전류 흐름도이다.5 is a flow diagram of current in an integrated circuit having a well well structure.

Claims (2)

기준 전압에 대하여 제1직류 전압을 발생하는 제1직류 전압 발생기와, 기준 전압에 대하여 제2직류 전압을 발생하는 제2직류 전압 발생기와, 상기 제1직류 전압 발생기와 상기 제2직류 전압 발생기에 일정 전압을 공급하는 작용을 하는 주전압원을 포함하여 이루어지는 것을 특징으로 하는 액정 구동용 전압 발생기.A first DC voltage generator for generating a first DC voltage with respect to a reference voltage, a second DC voltage generator for generating a second DC voltage with respect to a reference voltage, a first DC voltage generator, and a second DC voltage generator for A voltage generator for driving a liquid crystal, characterized by comprising a main voltage source which serves to supply a constant voltage. 제1항에 있어서, 상기 액정 구동용 전압 발생기는, 집적 회로로 인가되는 두가지의 전압에서 상기 주전압원의 전압을 인가받아 상대적으로 저레벨의 전압인 전압을 제1직류 전압 변환기에서 출력하고, 상기 제1직류 전압 변환기의 출력 전압을 상기 제2직류 전압 변환기에서 입력받아 순간적으로 발생하는 돌입 전류에 대한 회로가 오동작으로 하게 되는 요소를 방지하는 효과를 갖는 것을 특징으로 하는 액정 구동용 전압 발생기.The voltage generator of claim 1, wherein the liquid crystal driving voltage generator receives a voltage of the main voltage source from two voltages applied to an integrated circuit, and outputs a voltage having a relatively low voltage from the first DC voltage converter. A voltage generator for driving a liquid crystal, characterized in that it has an effect of preventing an element from causing an incorrect circuit of an inrush current generated by receiving an output voltage of a first DC voltage converter from the second DC voltage converter. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950031416A 1995-09-22 1995-09-22 Liquid Crystal Driving Voltage Generator KR970017142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950031416A KR970017142A (en) 1995-09-22 1995-09-22 Liquid Crystal Driving Voltage Generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950031416A KR970017142A (en) 1995-09-22 1995-09-22 Liquid Crystal Driving Voltage Generator

Publications (1)

Publication Number Publication Date
KR970017142A true KR970017142A (en) 1997-04-30

Family

ID=66615756

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950031416A KR970017142A (en) 1995-09-22 1995-09-22 Liquid Crystal Driving Voltage Generator

Country Status (1)

Country Link
KR (1) KR970017142A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100590748B1 (en) * 1998-12-04 2006-09-18 삼성전자주식회사 Low voltage input voltage compensation circuit of thin film transistor liquid crystal display driving circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100590748B1 (en) * 1998-12-04 2006-09-18 삼성전자주식회사 Low voltage input voltage compensation circuit of thin film transistor liquid crystal display driving circuit

Similar Documents

Publication Publication Date Title
KR910019334A (en) Reference generator
KR940010463A (en) Charge pumps operate on low voltage power supplies
KR960035403A (en) Driving device of thin film transistor liquid crystal display
KR950025773A (en) Semiconductor integrated circuit device
KR970051145A (en) Potential generator
KR950021481A (en) Internal step-down power circuit
KR970076801A (en) Boost circuit
KR940010488A (en) Charge pump circuit
KR920018758A (en) Integrated semiconductor circuit
KR870001505A (en) Ignition reset circuit
KR960008666A (en) Display drive device
KR960706219A (en) Boosting Circuit
KR970017142A (en) Liquid Crystal Driving Voltage Generator
KR920008765A (en) Semiconductor integrated circuit
KR920022711A (en) High voltage generator
KR970701947A (en) LOW LOSS INTEGRATED CIRCUIT WITH REDUCED CLOCK SWING
KR950702075A (en) CMOS CURRENT STEERING CIRCUIT
KR970072695A (en) Input Buffer Stabilizer
KR960025760A (en) Charge pump circuit
KR970072611A (en) A plurality of constant voltage source generators
KR950015744A (en) High Voltage Generation Circuit of Semiconductor Integrated Circuits
KR920009081A (en) Low Power TTL Input Buffer
KR960016391A (en) Flyback transformer
KR920015728A (en) Voltage level detection circuit
JPH01295519A (en) Semiconductor integrated circuit

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination