JP2009037230A - アクティブマトリクス型表示装置及びそれを用いた電子機器 - Google Patents
アクティブマトリクス型表示装置及びそれを用いた電子機器 Download PDFInfo
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- JP2009037230A JP2009037230A JP2008175868A JP2008175868A JP2009037230A JP 2009037230 A JP2009037230 A JP 2009037230A JP 2008175868 A JP2008175868 A JP 2008175868A JP 2008175868 A JP2008175868 A JP 2008175868A JP 2009037230 A JP2009037230 A JP 2009037230A
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Images
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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0876—Supplementary capacities in pixels having special driving circuits and electrodes instead of being connected to common electrode or ground; Use of additional capacitively coupled compensation electrodes
-
- 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
- G09G2310/0278—Details of driving circuits arranged to drive both scan and data electrodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/04—Display protection
Abstract
【解決手段】各画素に対し設けられた画素容量と、各画素に対し前記画素容量とは別個に設けられたN個(Nは2以上の自然数)の蓄積容量と、第1のグループのトランジスタと、第2のグループのトランジスタと、データ線とを有し、第1のグループのトランジスタがオン状態で第2のグループのトランジスタがオフ状態のとき画素容量及びN個の蓄積容量はデータ線と基準電位との間に互いに並列に接続され、第1のグループのトランジスタがオフ状態で第2のグループのトランジスタがオン状態のときN個の蓄積容量は直列接続され、この直列接続体の一端は基準電位に接続され他端は画素容量の一端に接続され、画素容量の他端は基準電位に接続される構成とする。
【選択図】図2
Description
Q2−Q2′=Q1−Q1′=Q′−Q 式(1)
(Q2′/Cs2)+(Q1′/Cs1)=Q′/Cliq 式(2)
(−Q′+Q+Q2)/Cs2+(−Q′+Q+Q1)/Cs1=Q′/Cliq 式(3)
Q′/Cliq
=[Cs1(Q+Q2)+Cs2(Q+Q1)]
/[Cs1Cs2+Cs1Cliq+Cs2Cliq] 式(4)
Q′/Cliq
=[(Q+Q2)/Cs2+(Q+Q1)/Cs1]
/[1+Cliq/Cs2+Cliq/Cs1] 式(5)
Cliq 液晶容量
Cs1 第1の蓄積容量
Cs2 第2の蓄積容量
Cs3 第3の蓄積容量
N1〜N5 N型トランジスタ
P1、P2 P型トランジスタ
11 走査線
12 データ線
Claims (7)
- 各画素に対し設けられた画素容量と、
各画素に対し前記画素容量とは別個に設けられたN個(Nは2以上の自然数)の蓄積容量と、
第1のグループのトランジスタと、
第2のグループのトランジスタと、
データ線とを有し、
前記第1のグループのトランジスタがオン状態で前記第2のグループのトランジスタがオフ状態のとき、前記画素容量及びN個の蓄積容量は前記データ線と基準電位との間に互いに並列に接続され、
前記第1のグループのトランジスタがオフ状態で前記第2のグループのトランジスタがオン状態のとき、前記N個の蓄積容量は直列接続され、この直列接続体の一端は前記基準電位に接続され他端は前記画素容量の第1端子に接続され、前記画素容量の第2端子は前記基準電位に接続されることを特徴とするアクティブマトリクス型表示装置。 - 各画素に対し設けられた画素容量と、
各画素に対し前記画素容量とは別個に設けられたN個(Nは2以上の自然数)の蓄積容量と、
第1の導電型のトランジスタからなる第1のグループのトランジスタと、
前記第1の導電型とは逆の導電型の第2の導電型のトランジスタからなる第2のグループのトランジスタと、
データ線と、
走査線とを有し、
前記第1のグループのトランジスタは、前記N個の蓄積容量のうち第1番目の蓄積容量の第1端子と前記データ線との間に接続されたトランジスタと、
前記N個の蓄積容量のうち第i番目(2≦i≦N、iは自然数)の蓄積容量の第1端子と、第(i−1)番目の蓄積容量の第1端子との間に接続されたトランジスタと、
前記第i番目の蓄積容量の第2端子と前記基準電位との間に接続されたトランジスタとを有し、
前記第2のグループのトランジスタは、前記N個の蓄積容量のうち第j番目(1≦j≦(N−1)、jは自然数)の蓄積容量の第1端子と、第(j+1)番目の蓄積容量の第2端子との間に接続されたトランジスタを有し、
前記第1番目の蓄積容量の第2端子は前記基準電位に接続され、第N番目の蓄積容量の第1端子は前記画素容量に接続され、前記画素容量の第2端子は前記基準電位に接続され、
前記第1の導電型のトランジスタ及び前記第2の導電型のトランジスタの各々のゲートは共通の前記走査線に接続されていることを特徴とするアクティブマトリクス型表示装置。 - 前記N個の蓄積容量の静電容量が前記画素容量の静電容量より大きいことを特徴とする請求項1または請求項2に記載のアクティブマトリクス型表示装置。
- 少なくとも2つの異なる画素は、それぞれ前記蓄積容量の静電容量が異なっていることを特徴とする請求項1乃至3のいずれか一項に記載のアクティブマトリクス型表示装置。
- 前記画素容量は、画素電極、対向電極、及び液晶からなる液晶容量であることを特徴とする請求項1乃至4のいずれか一項に記載のアクティブマトリクス型表示装置。
- 各画素の画素電極と対向電極の間に自発光材料が設けられていることを特徴とする請求項1乃至4のいずれか一項に記載のアクティブマトリクス型表示装置。
- 請求項1乃至6のいずれか一項に記載のアクティブマトリクス型表示装置を有する電子機器。
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JP2009128900A (ja) * | 2007-11-26 | 2009-06-11 | Samsung Electronics Co Ltd | 液晶表示装置 |
WO2019171204A1 (ja) * | 2018-03-06 | 2019-09-12 | 株式会社半導体エネルギー研究所 | 表示装置および電子機器 |
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JP5391106B2 (ja) * | 2010-02-25 | 2014-01-15 | 株式会社ジャパンディスプレイ | 画素回路、液晶装置及び電子機器 |
CN103680447B (zh) * | 2013-12-12 | 2016-01-13 | 深圳市华星光电技术有限公司 | 液晶显示设备及其像素驱动方法 |
CN105261638A (zh) * | 2015-08-04 | 2016-01-20 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | 一种具有鳍型沟道结构的薄膜晶体管及其制备方法 |
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US11822198B2 (en) | 2018-03-06 | 2023-11-21 | Semiconductor Energy Laboratory Co., Ltd. | Display device and electronic device |
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