DE69420520D1 - Graupegelwählende Schaltung für eine Anzeigesteuerschaltung - Google Patents

Graupegelwählende Schaltung für eine Anzeigesteuerschaltung

Info

Publication number
DE69420520D1
DE69420520D1 DE69420520T DE69420520T DE69420520D1 DE 69420520 D1 DE69420520 D1 DE 69420520D1 DE 69420520 T DE69420520 T DE 69420520T DE 69420520 T DE69420520 T DE 69420520T DE 69420520 D1 DE69420520 D1 DE 69420520D1
Authority
DE
Germany
Prior art keywords
display control
gray level
circuit
control circuit
level selecting
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69420520T
Other languages
English (en)
Other versions
DE69420520T2 (de
Inventor
Hisao Okada
Yuji Yamamoto
Mitsuyoshi Seo
Kuniaki Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
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
Priority claimed from JP29710393A external-priority patent/JP2869315B2/ja
Application filed by Sharp Corp filed Critical Sharp Corp
Application granted granted Critical
Publication of DE69420520D1 publication Critical patent/DE69420520D1/de
Publication of DE69420520T2 publication Critical patent/DE69420520T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • 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
    • G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated 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
    • G09G2310/027—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
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2011—Display of intermediate tones by amplitude modulation
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2014—Display of intermediate tones by modulation of the duration of a single pulse during which the logic level remains constant
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
DE69420520T 1993-11-26 1994-10-27 Graupegelwählende Schaltung für eine Anzeigesteuerschaltung Expired - Fee Related DE69420520T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29710393A JP2869315B2 (ja) 1993-05-14 1993-11-26 表示装置の駆動回路

Publications (2)

Publication Number Publication Date
DE69420520D1 true DE69420520D1 (de) 1999-10-14
DE69420520T2 DE69420520T2 (de) 2000-01-20

Family

ID=17842253

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69420520T Expired - Fee Related DE69420520T2 (de) 1993-11-26 1994-10-27 Graupegelwählende Schaltung für eine Anzeigesteuerschaltung

Country Status (5)

Country Link
EP (1) EP0655726B1 (de)
KR (1) KR0150262B1 (de)
CN (1) CN1080912C (de)
DE (1) DE69420520T2 (de)
TW (1) TW306998B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3517503B2 (ja) * 1995-12-21 2004-04-12 株式会社日立製作所 Ｔｆｔ液晶ディスプレイの駆動回路
JP4637315B2 (ja) 1999-02-24 2011-02-23 株式会社半導体エネルギー研究所 表示装置
US7193594B1 (en) 1999-03-18 2007-03-20 Semiconductor Energy Laboratory Co., Ltd. Display device
US7145536B1 (en) 1999-03-26 2006-12-05 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display device
US6952194B1 (en) 1999-03-31 2005-10-04 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal display device
CN110534054B (zh) * 2019-07-31 2021-06-22 华为技术有限公司 显示驱动方法及装置、显示装置、存储介质、芯片

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6125184A (ja) * 1984-07-13 1986-02-04 株式会社　アスキ− 表示制御装置
JP2642204B2 (ja) * 1989-12-14 1997-08-20 シャープ株式会社 液晶表示装置の駆動回路
EP0515191B1 (de) * 1991-05-21 1998-08-26 Sharp Kabushiki Kaisha Verfahren und Einrichtung zum Steuern einer Anzeigeeinrichtung
JPH05100635A (ja) * 1991-10-07 1993-04-23 Nec Corp アクテイブマトリクス型液晶デイスプレイの駆動用集積回路と駆動方法
DE69419070T2 (de) * 1993-05-14 1999-11-18 Sharp Kk Steuerungsverfahren für Anzeigevorrichtung

Also Published As

Publication number Publication date
EP0655726A1 (de) 1995-05-31
EP0655726B1 (de) 1999-09-08
DE69420520T2 (de) 2000-01-20
KR950014957A (ko) 1995-06-16
CN1080912C (zh) 2002-03-13
KR0150262B1 (ko) 1998-10-15
CN1122934A (zh) 1996-05-22
TW306998B (de) 1997-06-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee