JP2011248352A - 液晶表示装置及び電子機器 - Google Patents
液晶表示装置及び電子機器 Download PDFInfo
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- JP2011248352A JP2011248352A JP2011099674A JP2011099674A JP2011248352A JP 2011248352 A JP2011248352 A JP 2011248352A JP 2011099674 A JP2011099674 A JP 2011099674A JP 2011099674 A JP2011099674 A JP 2011099674A JP 2011248352 A JP2011248352 A JP 2011248352A
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Abstract
【解決手段】赤、緑、青のカラーフィルタを有する副画素と、白色の光の透過を制御するための副画素とを有する複数の画素が設けられた表示パネルと、赤、緑、青、及び白の光源を有するバックライト部と、表示パネルを動画モードで表示するか、または静止画モードで表示するかを切り替える画像切替回路と、動画モードでは画像信号に応じてバックライト部の赤、緑、青の輝度の制御をし、静止画モードでは画像信号に応じてバックライト部の白の光源の輝度の制御をする表示制御回路と、有する構成とする。
【選択図】図1
Description
以下、静止画モードと動画モードとを切り替えて表示をする本実施の形態の液晶表示装置について説明する。なお、液晶表示装置が液晶表示装置に入力される画像信号を静止画として表示を行う動作を静止画モード、動画として表示を行う動作を動画モードとする。
本実施の形態では、上記実施の形態1で述べた画素110を構成する副画素の色要素の組み合わせとして、RGBWでなく、Wの代わりに黄色の副画素を追加した構成について説明する。なお上記実施の形態1と重複する説明については、本実施の形態での説明を省略するものとする。
本実施の形態では、上記実施の形態1で説明した表示パネルの構成、及び副画素の回路構成の一例について説明する。
本実施の形態では、表示パネルの画素の平面図及び断面図の一例について図面を用いて説明する。なお本実施の形態でいう画素は、上記実施の形態1で説明した副画素に相当するものである。
本実施の形態では、本明細書に開示する液晶表示装置に適用できるトランジスタの例を示す。本明細書に開示する液晶表示装置に適用できるトランジスタの構造は特に限定されず、例えばゲート電極が、ゲート絶縁層を介して、酸化物半導体層の上側に配置されるトップゲート構造、又はゲート電極が、ゲート絶縁層を介して、酸化物半導体層の下側に配置されるボトムゲート構造のスタガ型及びプレーナ型などを用いることができる。また、トランジスタはチャネル形成領域が一つ形成されるシングルゲート構造でも、二つ形成されるダブルゲート構造もしくは三つ形成されるトリプルゲート構造であっても良い。また、チャネル領域の上下にゲート絶縁層を介して配置された2つのゲート電極層を有する、デュアルゲート型でもよい。なお、図12(A)乃至(D)にトランジスタの断面構造の一例を以下に示す。図12(A)乃至(D)に示すトランジスタは、半導体層として酸化物半導体を用いるものである。酸化物半導体を用いることのメリットは、トランジスタのオン状態において高い電界効果移動度(最大値で5cm2/Vsec以上、好ましくは最大値で10cm2/Vsec〜150cm2/Vsec)と、トランジスタのオフ状態において低い単位チャネル幅あたりのオフ電流(例えば単位チャネル幅あたりのオフ電流が1aA/μm未満、さらに好ましくは10zA/μm未満、且つ、85℃にて100zA/μm未満)が得られることである。
本実施の形態は、酸化物半導体層を含むトランジスタ、及び作製方法の一例について、図13を用いて詳細に説明する。上記実施の形態と同一部分又は同様な機能を有する部分、繰り返しの説明は省略する。また同じ箇所の詳細な説明は省略する。
本明細書に開示する液晶表示装置は、さまざまな電子機器(遊技機も含む)に適用することができる。電子機器としては、例えば、テレビジョン装置(テレビ、またはテレビジョン受信機ともいう)、コンピュータ用などのモニタ、デジタルカメラ、デジタルビデオカメラ等のカメラ、デジタルフォトフレーム、携帯電話機(携帯電話、携帯電話装置ともいう)、携帯型ゲーム機、携帯情報端末、音響再生装置、パチンコ機などの大型ゲーム機などが挙げられる。上記実施の形態で説明した液晶表示装置を具備する電子機器の例について説明する。
本実施の形態においては、上記実施の形態7で説明した電子書籍の構成について、具体例を示し説明する。
102 表示パネル
103 偏光板
104 偏光板
106 拡散板
107 画素部
108 走査線駆動回路
109 信号線駆動回路
110 画素
111 副画素
112 FPC
113 外部基板
115 回路部
120 液晶表示装置
121 表示切替回路
122 表示制御回路
123 バックライト部
124 表示パネル
125 画像信号供給源
143 書き込み期間
144 保持期間
201 測定系
211 トランジスタ
212 トランジスタ
213 容量素子
214 トランジスタ
215 トランジスタ
300 外部切替手段
301 記憶回路
302 比較回路
303 選択回路
311 画素部
312 駆動回路
313 副画素
322 バックライト
400 基板
401 ゲート電極層
402 ゲート絶縁層
403 酸化物半導体層
407 絶縁膜
408 容量配線層
409 保護絶縁層
410 トランジスタ
413 層間膜
420 トランジスタ
427 絶縁層
430 トランジスタ
437 絶縁層
440 トランジスタ
441 基板
442 基板
444 液晶層
447 透明電極層
448 共通電極層
449 導電層
450 トランジスタ
505 基板
506 保護絶縁層
507 ゲート絶縁層
510 トランジスタ
511 ゲート電極層
516 絶縁層
530 酸化物半導体膜
531 酸化物半導体層
601 画素部
602 走査線
603 信号線
606 走査線側駆動回路
607 信号線側駆動回路
610 副画素
612 画素トランジスタ
613 液晶素子
614 容量素子
618 共通電極
619 容量線
710 画像信号変換回路
711 表示制御切替回路
712 動画表示制御回路
713 静止画表示制御回路
714 動画タイミング信号生成回路
715 動画バックライト制御回路
716 静止画タイミング信号生成回路
717 静止画バックライト制御回路
801 期間
802 期間
830 画素部
831 表示画像
840 バックライト
911 表示画像
912 表示画像
913 表示画像
105B 光源
105R 光源
105G 光源
105W 光源
105Y 光源
111B 副画素
111G 副画素
111R 副画素
111W 副画素
111Y 副画素
114B 光透過部
114G 光透過部
114R 光透過部
114W 光透過部
114Y 光透過部
1700 筐体
1701 筐体
1702 表示部
1703 表示部
1704 蝶番
1705 電源入力端子
1706 操作キー
1707 スピーカ
1711 筐体
1712 表示部
1721 筐体
1722 表示部
1723 スタンド
1731 筐体
1732 表示部
1733 操作ボタン
1734 外部接続ポート
1735 スピーカ
1736 マイク
1737 操作ボタン
405a ソース電極層
405b ドレイン電極層
436a 配線層
436b 配線層
460a 配向膜
460b 配向膜
515a ソース電極層
515b ドレイン電極層
9630 筐体
9631 表示部
9632 操作キー
9633 太陽電池
9634 充放電制御回路
9635 バッテリー
9636 コンバータ
9637 コンバータ
Claims (8)
- 赤のカラーフィルタを有する副画素と、緑のカラーフィルタを有する副画素と、青のカラーフィルタを有する副画素と、白色の光の透過を制御するための副画素とを有する複数の画素が設けられた表示パネルと、
赤、緑、青、及び白の光源を有するバックライト部と、
前記表示パネルを動画モードで表示するか、または静止画モードで表示するかを切り替える画像切替回路と、
前記動画モードでは画像信号に応じて前記バックライト部の前記赤、前記緑、及び前記青の光源の輝度の制御をし、前記静止画モードでは前記画像信号に応じて前記バックライト部の前記白の光源の輝度の制御をする表示制御回路と、
を有することを特徴とする液晶表示装置。 - 赤のカラーフィルタを有する副画素と、緑のカラーフィルタを有する副画素と、青のカラーフィルタを有する副画素と、白色の光の透過を制御するための副画素とを有する複数の画素が設けられた表示パネルと、
赤、緑、青、及び白の光源を有するバックライト部と、
前記表示パネルを動画モードで表示するか、または静止画モードで表示するかを切り替える画像切替回路と、
第1の画像信号を前記副画素に供給するための第2の画像信号に変換するための画像信号変換回路と、前記動画モードで前記第2の画像信号に応じて前記バックライト部の前記赤、前記緑、及び前記青の光源の輝度の制御及び前記表示パネルの制御をする動画表示制御回路と、前記静止画モードで前記第2の画像信号に応じて前記白の光源の輝度の制御及び前記表示パネルの制御をする静止画表示制御回路と、を含む表示制御回路と、
を有することを特徴とする液晶表示装置。 - 赤のカラーフィルタを有する副画素と、緑のカラーフィルタを有する副画素と、青のカラーフィルタを有する副画素と、白色の光の透過を制御するための副画素とを有する複数の画素が設けられた表示パネルと、
赤、緑、青、及び白の光源を有するバックライト部と、
前記表示パネルを動画モードで表示するか、または静止画モードで表示するかを切り替える画像切替回路と、
第1の画像信号を前記副画素に供給する第2の画像信号に変換するための画像信号変換回路と、前記動画モードで前記第2の画像信号を複数の書き込み期間により表示するよう前記表示パネルの制御を行う動画タイミング信号生成回路と、前記動画モードで前記第2の画像信号に応じて前記バックライト部の前記赤、前記緑、及び前記青の光源の輝度の制御を行う動画バックライト制御回路と、前記静止画モードで前記第2の画像信号を複数の書き込み期間及び保持期間により表示するよう前記表示パネルの制御を行う静止画タイミング信号生成回路と、前記静止画モードで前記第2の画像信号に応じて前記バックライト部の前記白の光源の輝度の制御を行う静止画バックライト制御回路と、を含む表示制御回路と、
を有することを特徴とする液晶表示装置。 - 赤のカラーフィルタを有する副画素と、緑のカラーフィルタを有する副画素と、青のカラーフィルタを有する副画素と、黄のカラーフィルタを有する副画素と、を有する複数の画素が設けられた表示パネルと、
赤、緑、青、及び黄の光源を有するバックライト部と、
前記表示パネルを動画モードで表示するか、または静止画モードで表示するかを切り替える画像切替回路と、
第1の画像信号を前記副画素に供給する第2の画像信号に変換するための画像信号変換回路と、前記動画モードで前記第2の画像信号を複数の書き込み期間により表示するよう前記表示パネルの制御を行う動画タイミング信号生成回路と、前記動画モードで前記第2の画像信号に応じて前記バックライト部の前記赤、前記緑、及び前記青の光源の輝度の制御を行う動画バックライト制御回路と、前記静止画モードで前記第2の画像信号を複数の書き込み期間及び保持期間により表示するよう前記表示パネルの制御を行う静止画タイミング信号生成回路と、前記静止画モードで前記第2の画像信号に応じて前記バックライト部の前記青及び前記黄の光源の輝度の制御を行う静止画バックライト制御回路と、を含む表示制御回路と、
を有することを特徴とする液晶表示装置。 - 請求項3または請求項4において、前記保持期間は1分以上であることを特徴とする液晶表示装置。
- 請求項1乃至請求項5のいずれか一において、前記副画素は、酸化物半導体でなる半導体層を有するトランジスタを具備することを特徴とする液晶表示装置。
- 請求項1乃至6のいずれか一において、前記バックライト部の前記光源は、発光ダイオードであることを特徴とする液晶表示装置。
- 請求項1乃至請求項7のいずれか一に記載の液晶表示装置を具備する電子機器。
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Publication number | Publication date |
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TWI559285B (zh) | 2016-11-21 |
TW201142804A (en) | 2011-12-01 |
TWI616864B (zh) | 2018-03-01 |
JP5730117B2 (ja) | 2015-06-03 |
TW201701266A (zh) | 2017-01-01 |
WO2011136018A1 (en) | 2011-11-03 |
JP5913679B2 (ja) | 2016-04-27 |
US9019320B2 (en) | 2015-04-28 |
JP6138310B2 (ja) | 2017-05-31 |
US20110267381A1 (en) | 2011-11-03 |
JP2016136276A (ja) | 2016-07-28 |
JP2015132850A (ja) | 2015-07-23 |
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