JP4917066B2 - 表示装置 - Google Patents
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- JP4917066B2 JP4917066B2 JP2008096888A JP2008096888A JP4917066B2 JP 4917066 B2 JP4917066 B2 JP 4917066B2 JP 2008096888 A JP2008096888 A JP 2008096888A JP 2008096888 A JP2008096888 A JP 2008096888A JP 4917066 B2 JP4917066 B2 JP 4917066B2
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- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
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- G09G3/22—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 using controlled light sources
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- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
この発明に依る表示装置は、前記デジタルの映像信号とは別の信号によって、前記第2の電流を前記発光素子に流さないようにする手段を有することを含む。
また、前記表示装置は、前記画素を複数有し、前記第1の電流の電流値は、複数の前記画素の少なくとも一部において同じであることを含む。
本発明の表示装置の画素構成の一例を示す。各画素に配置した電流源回路の構成例を図4に示す。なお、図4において、図3と同じ部分は同じ符号を用いて示す。図4ではカレントミラー方式の電流源回路の例を示す。電流源回路102は、電流源容量111、電流源トランジスタ112、カレントトランジスタ1405、電流入力トランジスタ1403、電流保持トランジスタ1404、電流線CL、信号線GN、信号線GHとによって構成される。電流源トランジスタ112とカレントトランジスタ1405は一対でカレントミラー回路を構成するので、極性は等しくなくてはならない。また、同一画素内のこれら2つのトランジスタの電流特性は等しいことが望まれる。ここで本実施の形態1では、簡単のため、電流源トランジスタ112とカレントトランジスタ1405の電流特性は等しいとする。
本実施の形態では、同一トランジスタ方式の電流源回路の構成例を図12に示す。なお、ここでは実施の形態1と異なる部分について主に説明し、重複する部分は説明を省略する。従って、図12において図3と同じ部分は同じ符号を用いて示す。
本実施の形態ではマルチゲート方式の電流源回路について説明する。なお、ここでは実施の形態1や実施の形態2と異なる部分について主に説明し共通する部分の説明は省略する。
Claims (3)
- 第1の電流をトランジスタに入力して前記トランジスタのドレイン電流とし、前記トランジスタのゲート電圧を保持する機能を有する手段と、
デジタルの映像信号によって前記トランジスタのソースとドレイン間に電圧を印加するか否かを制御して、保持された前記ゲート電圧によって定まる前記トランジスタのドレイン電流を発光素子に流すか否かを制御する手段と、を有する画素を複数有し、
複数の前記画素のそれぞれに設けられた前記発光素子は互いに異なる色に発光し、
複数の前記画素において、前記第1の電流の電流値は互いに異なることを特徴とする表示装置。 - 請求項1において、
前記トランジスタのゲートとドレインを電気的に接続する手段を有することを特徴とする表示装置。 - 請求項1又は請求項2において、
前記画素に入力される前記デジタルの映像信号は、1ビットの信号であることを特徴とする表示装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008096888A JP4917066B2 (ja) | 2001-09-21 | 2008-04-03 | 表示装置 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001289983 | 2001-09-21 | ||
JP2001289983 | 2001-09-21 | ||
JP2008096888A JP4917066B2 (ja) | 2001-09-21 | 2008-04-03 | 表示装置 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003531449A Division JP4197647B2 (ja) | 2001-09-21 | 2002-09-12 | 表示装置及び半導体装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2011130851A Division JP5683042B2 (ja) | 2001-09-21 | 2011-06-13 | 表示装置 |
Publications (2)
Publication Number | Publication Date |
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JP2008181159A JP2008181159A (ja) | 2008-08-07 |
JP4917066B2 true JP4917066B2 (ja) | 2012-04-18 |
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ID=19112391
Family Applications (11)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003531449A Expired - Fee Related JP4197647B2 (ja) | 2001-09-21 | 2002-09-12 | 表示装置及び半導体装置 |
JP2008096888A Expired - Fee Related JP4917066B2 (ja) | 2001-09-21 | 2008-04-03 | 表示装置 |
JP2011130851A Expired - Fee Related JP5683042B2 (ja) | 2001-09-21 | 2011-06-13 | 表示装置 |
JP2013135323A Withdrawn JP2013238868A (ja) | 2001-09-21 | 2013-06-27 | 半導体装置 |
JP2015027562A Withdrawn JP2015129956A (ja) | 2001-09-21 | 2015-02-16 | 半導体装置 |
JP2016248856A Withdrawn JP2017076143A (ja) | 2001-09-21 | 2016-12-22 | 表示装置 |
JP2017244892A Withdrawn JP2018087983A (ja) | 2001-09-21 | 2017-12-21 | 表示装置 |
JP2018139992A Expired - Lifetime JP6675446B2 (ja) | 2001-09-21 | 2018-07-26 | 表示装置 |
JP2018235669A Withdrawn JP2019074750A (ja) | 2001-09-21 | 2018-12-17 | 表示装置 |
JP2019221531A Expired - Lifetime JP6815472B2 (ja) | 2001-09-21 | 2019-12-06 | 表示装置 |
JP2020152022A Withdrawn JP2021002060A (ja) | 2001-09-21 | 2020-09-10 | 表示装置 |
Family Applications Before (1)
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JP2015027562A Withdrawn JP2015129956A (ja) | 2001-09-21 | 2015-02-16 | 半導体装置 |
JP2016248856A Withdrawn JP2017076143A (ja) | 2001-09-21 | 2016-12-22 | 表示装置 |
JP2017244892A Withdrawn JP2018087983A (ja) | 2001-09-21 | 2017-12-21 | 表示装置 |
JP2018139992A Expired - Lifetime JP6675446B2 (ja) | 2001-09-21 | 2018-07-26 | 表示装置 |
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JP2019221531A Expired - Lifetime JP6815472B2 (ja) | 2001-09-21 | 2019-12-06 | 表示装置 |
JP2020152022A Withdrawn JP2021002060A (ja) | 2001-09-21 | 2020-09-10 | 表示装置 |
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CN102290005B (zh) | 2017-06-20 |
TW569176B (en) | 2004-01-01 |
JP4197647B2 (ja) | 2008-12-17 |
JP2017076143A (ja) | 2017-04-20 |
US7859520B2 (en) | 2010-12-28 |
CN1556976A (zh) | 2004-12-22 |
CN102290005A (zh) | 2011-12-21 |
JP6675446B2 (ja) | 2020-04-01 |
CN107230450A (zh) | 2017-10-03 |
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