KR950023016A - 계조 표현방법 - Google Patents

계조 표현방법 Download PDF

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Publication number
KR950023016A
KR950023016A KR1019940035549A KR19940035549A KR950023016A KR 950023016 A KR950023016 A KR 950023016A KR 1019940035549 A KR1019940035549 A KR 1019940035549A KR 19940035549 A KR19940035549 A KR 19940035549A KR 950023016 A KR950023016 A KR 950023016A
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KR
South Korea
Prior art keywords
gradation
light
intensity
response
pixel
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KR1019940035549A
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English (en)
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KR100289023B1 (ko
Inventor
고지 아사자끼
Original Assignee
오오가 노리오
소니 가부시끼 가이샤
스즈끼 구니조
텍사스 인스트루먼츠 인코포레이티드
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Publication of KR950023016A publication Critical patent/KR950023016A/ko
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Publication of KR100289023B1 publication Critical patent/KR100289023B1/ko

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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
    • G09G3/3433—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 light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
    • G09G3/346—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 light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on modulation of the reflection angle, e.g. micromirrors
    • 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
    • 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
    • G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames
    • G09G3/2029—Display of intermediate tones by time modulation using two or more time intervals using sub-frames the sub-frames having non-binary weights
    • 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
    • G09G3/3406—Control of illumination source
    • 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
    • H04N3/12—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7458—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of deformable mirrors, e.g. digital micromirror device [DMD]
    • 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
    • G09G2310/0237—Switching ON and OFF the backlight within one frame
    • 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
    • G09G2310/06—Details of flat display driving waveforms
    • G09G2310/066—Waveforms comprising a gently increasing or decreasing portion, e.g. ramp
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude modulation of the brightness of the illumination source
    • 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

Abstract

[목적] 본 발명은 계조 표현 방법에 있어서, 온 오프형 공간 광 변조 소자(2)를 사용해서 계조 표현할 때, 플리커의 발생을 유효하게 희피해서 다계조를 확실히 표현한다.
[구성] 온 오프형 광 변조 소자(2)를 사용해서 계조 표현할때, 광의 강도를 변조할 수 있는 광원(6) 또는 광원으로부터의 광의 강도를 변경하는 변조 수단을 사용해 화상데이타의 화소마다의 계조에 응해서 광원(6)으로부터의 광을 광강도 변조해서 계조 표현하도록 했다.

Description

계조 표현방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 계조 표현 방법을 실시하는 화소표시 장치의 구성을 나타내는 블록도,
제2(A)도 내지 제2(F)도는 펄스폭 변조에 의해 계조 표시 방법의 설명에 제공하는 타이밍챠트,
제3(A)도 내지 제3(F)도는 본 발명에 의한 계조 표시 방법의 제1실시예의 설명에 제공하는 타이밍챠트.

Claims (4)

  1. 화상데이타의 화소에 응해서 배치된 온 오프형 공간 광 변조 소자를 사용한 화상 표현 장치로 계조를 표현하는 계조 표현 방법에 있어서, 광의 강도를 변조할 수 있는 광원을 사용해 상기 화상데이터의 상기 화소의 마다의 계조에 응해서 상기 광원으로부터의 상기 광을 광강도 변조해서 계조 표현하도록 것을 특징으로 하는 계조 표현방법.
  2. 화상데이타의 화소에 응해서 배치된 온 오프형 공간 광 변조 소자를 사용한 화상 표현 장치로 계조를 표현하는 계조 표현 방법에 있어서, 광원으로부터의 광의 강도를 변경하는 변조 수단을 사용해, 상기 화상 데이타의 상기 화소마다의 계조에 응해서 상기 광원으로부터의 상기 광을 광강도 변조해서 계조 표현하도록 한 것을 특징으로 하는 계조 표현 방법.
  3. 화상 데이터의 화소에 응해서 배치된 온 오프형 공간 광 변조 소자를 사용한 화상 표현 장치로 계조를 표현하는 계조 표현 방법에 있어서, 광의 강도를 변조할 수 있는 광원을 사용해, 상기 화상 데이타의 상기 화소마다의 계조에 응해 상기 온.오프형 공간 광 변조 소자를 펄스폭 변조함과 함께 당해 광원으로 부터의 상기 광을 광강도 변조해서 계조 표현하도록 항 것을 특징으로 하는 계조 표현 방법.
  4. 화상 데이타의 화소에 응해서 배치된 온 오프형 공간 광 변조 소자를 사용한 화상 표현 장치로 계조를 표현하는 계조 표현 방법에 있어서, 광원으로부터의 광의 강도를 변경하는 변조 수단을 사용해, 상기 화상 데이타의 상기 화소마다의 계조에 응해서 상기 온 오프형 공간 광 변조 소자를 펄스폭 변조함과 함께 당해 과아원으로부터의 상기 광을 광강도 변조해서 계조 표현하도록 한 것을 특징으로 하는 계조 표현 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940035549A 1993-12-24 1994-12-21 계조 표현 방법 KR100289023B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP93-347576 1993-12-24
JP34757693A JP3351888B2 (ja) 1993-12-24 1993-12-24 階調表現方法及び画像表現装置

Publications (2)

Publication Number Publication Date
KR950023016A true KR950023016A (ko) 1995-07-28
KR100289023B1 KR100289023B1 (ko) 2001-05-02

Family

ID=18391156

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Application Number Title Priority Date Filing Date
KR1019940035549A KR100289023B1 (ko) 1993-12-24 1994-12-21 계조 표현 방법

Country Status (4)

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EP (1) EP0660593B1 (ko)
JP (1) JP3351888B2 (ko)
KR (1) KR100289023B1 (ko)
DE (1) DE69423036T2 (ko)

Families Citing this family (12)

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Publication number Priority date Publication date Assignee Title
US5990983A (en) * 1994-09-30 1999-11-23 Laser Power Corporation High resolution image projection system and method employing lasers
US5668611A (en) * 1994-12-21 1997-09-16 Hughes Electronics Full color sequential image projection system incorporating pulse rate modulated illumination
WO1998020475A1 (en) * 1996-11-01 1998-05-14 Laser Power Corporation Projection display with gradation levels obtained by modulation of beamlets
US6154259A (en) * 1996-11-27 2000-11-28 Photera Technologies, Inc. Multi-beam laser scanning display system with speckle elimination
JP2001337311A (ja) 2000-05-29 2001-12-07 Sony Corp 液晶表示素子の駆動方法
US7564874B2 (en) * 2004-09-17 2009-07-21 Uni-Pixel Displays, Inc. Enhanced bandwidth data encoding method
EP1650736A1 (en) * 2004-10-25 2006-04-26 Barco NV Backlight modulation for display
JP5798707B2 (ja) 2008-01-28 2015-10-21 セイコーエプソン株式会社 画像表示装置、その制御方法及び電子機器
JP2010091895A (ja) * 2008-10-10 2010-04-22 Toppoly Optoelectronics Corp アクティブマトリクス型ディスプレイ装置
WO2014112032A1 (ja) * 2013-01-15 2014-07-24 Ｎｅｃディスプレイソリューションズ株式会社 画像表示装置および画像表示方法
JP6102992B2 (ja) * 2015-07-09 2017-03-29 セイコーエプソン株式会社 画像表示装置、その制御方法及び電子機器
WO2020039954A1 (ja) * 2018-08-20 2020-02-27 ソニー株式会社 表示装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3785813T2 (de) * 1986-09-20 1993-11-11 Emi Plc Thorn Anzeigevorrichtung.
US5032924A (en) * 1989-04-10 1991-07-16 Nilford Laboratories, Inc. System for producing an image from a sequence of pixels
GB9024978D0 (en) * 1990-11-16 1991-01-02 Rank Cintel Ltd Digital mirror spatial light modulator
US5151718A (en) * 1990-12-31 1992-09-29 Texas Instruments Incorporated System and method for solid state illumination for dmd devices
GB2251511A (en) * 1991-01-04 1992-07-08 Rank Brimar Ltd Display device.

Also Published As

Publication number Publication date
JP3351888B2 (ja) 2002-12-03
DE69423036D1 (de) 2000-03-23
DE69423036T2 (de) 2000-06-29
EP0660593B1 (en) 2000-02-16
KR100289023B1 (ko) 2001-05-02
JPH07212686A (ja) 1995-08-11
EP0660593A1 (en) 1995-06-28

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