JP7007121B2 - 表示装置 - Google Patents
表示装置 Download PDFInfo
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- JP7007121B2 JP7007121B2 JP2017134817A JP2017134817A JP7007121B2 JP 7007121 B2 JP7007121 B2 JP 7007121B2 JP 2017134817 A JP2017134817 A JP 2017134817A JP 2017134817 A JP2017134817 A JP 2017134817A JP 7007121 B2 JP7007121 B2 JP 7007121B2
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Computer Hardware Design (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
- Electroluminescent Light Sources (AREA)
- Liquid Crystal Display Device Control (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of El Displays (AREA)
- Position Input By Displaying (AREA)
Description
図1は、第1の実施形態に係る表示装置の一構成例を示すブロック図である。本実施形態の表示装置1は、被検出体の表示面への接触や近接を検出する検出機能が内蔵されている。図1に示すように、表示装置1は、表示パネル10と、制御部11と、ゲートドライバ12と、ソースドライバ13と、駆動回路14と、検出部40とを備える。
図18は、第2の実施形態に係る表示装置の分解斜視図である。図18に示すように、本実施形態の表示装置1Aにおいて、第1電極33、第2電極TDL、第3電極24及び信号線SGLの構成や積層の順番は、第1の実施形態と同様である。
図28は、第3の実施形態に係る表示装置の分解斜視図である。図29は、第3の実施形態に係る表示装置の概略断面構造を表す断面図である。図30は、第3電極、信号線及び導通部を模式的に示す平面図である。
図31は、第4の実施形態に係る表示装置の分解斜視図である。本実施形態の表示装置1Cにおいても、第1基板21C、複数の第3電極24C、複数の信号線SGL、複数の画素電極25、表示機能層としての液晶層6、共通電極COMLC、複数の第1電極33C及び複数の第2電極TDLCは、この順で重なって設けられる。
図36は、第5の実施形態に係る表示装置の分解斜視図である。本実施形態の表示装置1Dにおいて、第1基板21C、複数の第3電極24C、複数の信号線SGL、複数の画素電極25、表示機能層としての液晶層6、共通電極COMLC、複数の第1電極33C及び複数の第2電極TDLCの構成や積層の順番は、第4の実施形態と同様である。
図37は、第6の実施形態に係る表示装置の分解斜視図である。図38は、第6の実施形態に係る表示装置の概略断面構造を表す断面図である。図37に示すように、本実施形態の表示装置1Eにおいて、第1基板21C、複数の信号線SGL、複数の第3電極24C、複数の画素電極25、表示機能層としての液晶層6、共通電極COMLC、複数の第1電極33C及び複数の第2電極TDLCは、この順で重なって設けられる。言い換えると、第1基板21Cの表面に垂直な方向において、第1基板21Cと第3電極24Cとの間に信号線SGLが設けられる。
図39は、第7の実施形態に係る表示装置の分解斜視図である。図40は、第7の実施形態に係る表示装置の概略断面構造を表す断面図である。図41は、第7の実施形態に係る第1電極及び第2電極を模式的に示す平面図である。本実施形態の表示装置1Fは、有機発光ダイオード(OLED:Organic Light-Emitting Diode)を用いた表示パネルである。つまり、表示装置1Fは、バックライト等の光源は設けられていない。
2 画素基板
3 対向基板
6 液晶層
6B 電気泳動層
10 表示パネル
11 制御部
12 ゲートドライバ
12A ゲート走査回路
13 ソースドライバ
14 駆動回路
14A 第1電極走査回路
19 駆動IC
21、21B、21C、121 第1基板
24、24B、24C 第3電極
25、25B 画素電極
26a 金属層
26b 透光性導電層
29 平坦化膜
31、31B 第2基板
32 カラーフィルタ
33、33B、33C 第1電極
39 遮光層
40 検出部
47A 第1AFE
47B 第2AFE
48 マルチプレクサ
49 タッチIC
50 カバー部材
50a 第1面
72 接続電極
80 周辺回路領域
81 導通部
100 タッチペン
110 フレキシブル基板
COML、COMLB 共通電極
TDL 第2電極
CTx 送信コイル
CRx 受信コイル
SGL、SGLB、SGLF 信号線
GCL、GCLF ゲート線
VTP 第1駆動信号
TSVcom 第2駆動信号
Claims (11)
- 基板と、複数の第1電極と、複数の信号線と、複数のゲート線と、複数の画素電極と、表示機能層と、前記画素電極に対向する共通電極と、複数の第2電極と、制御部と、を備え、
前記基板、複数の前記画素電極、前記表示機能層及び前記共通電極はこの順で重なって設けられており、
前記共通電極の上に絶縁層が設けられ、前記絶縁層の上に前記第1電極と、前記第1電極と間隔を有して対向する前記第2電極とが設けられ、
前記基板と前記画素電極との間には、複数の第3電極が設けられ、
複数の前記第3電極は、平面視で複数の前記ゲート線に沿って設けられ、
前記制御部は、画像を表示する複数の表示期間と、センサ期間とを時分割で実行し、夫々の期間に応じて前記画素電極、前記共通電極、前記信号線、前記第1電極、前記第2電極及び第3電極を制御し、
前記表示期間には、前記制御部からの制御信号に応じて、前記信号線を介して前記画素電極に画素信号が供給されると共に、前記共通電極に共通信号が供給され、複数の前記第3電極には、前記共通電極に供給される前記共通信号と同じ電位の信号が供給され、
前記センサ期間には、前記制御部からの制御信号に応じて、前記信号線に第1駆動信号が供給されて電磁誘導を形成し、前記第3電極には前記電磁誘導に基づく起電力が発生し、
前記表示期間又は前記センサ期間に同期して、前記制御部からの制御信号に応じて前記第1電極に第2駆動信号が供給されて前記第2電極との間に静電容量を形成する、
表示装置。 - 前記複数の信号線のうち、一対の信号線の同側の端部を接続するスイッチ部が設けられており、
前記制御部は、前記センサ期間に、前記スイッチ部の動作により前記一対の信号線どうしを接続し、前記センサ期間とは異なる期間に前記スイッチ部の動作により前記一対の信号線どうしを非接続状態とする、
請求項1に記載の表示装置。 - 前記複数の信号線に第1電圧を供給する第1電圧供給部と、前記複数の信号線に前記第1電圧よりも小さい第2電圧を供給する第2電圧供給部と、を備え、
前記制御部からの制御信号に応じて、前記センサ期間に、少なくとも1つの前記信号線の一端側に前記第1電圧供給部が接続され、他端側に前記第2電圧供給部が接続され、少なくとも1つの前記信号線の他の前記信号線の一端側に前記第2電圧供給部が接続され、他端側に前記第1電圧供給部が接続される、
請求項1又は請求項2に記載の表示装置。 - 前記第2電極に接続されたアナログフロントエンド回路をさらに備えている、
請求項1から請求項3のいずれか1項に記載の表示装置。 - 前記第2電極、前記第3電極、及び前記アナログフロントエンド回路の間には、これらの接続状態を切り換えるスイッチ回路が設けられており、
前記センサ期間に、前記スイッチ回路は、前記第3電極と、前記アナログフロントエンド回路とを接続し、
前記センサ期間と異なる期間に、前記スイッチ回路は、前記第2電極と前記アナログフロントエンド回路とを接続する、
請求項4に記載の表示装置。 - 前記複数の第3電極は、平面視で前記信号線と交差して設けられる、
請求項1から請求項5のいずれか1項に記載の表示装置。 - 前記第1電極と前記第2電極との間には絶縁基板が設けられており、
前記第1電極は、平面視で前記信号線と交差して設けられ、
前記第2電極は、平面視で前記第1電極と交差して設けられる、
請求項1から請求項6のいずれか1項に記載の表示装置。 - 前記センサ期間とは異なる期間に、前記第1電極に第2駆動信号を供給して前記第1電極と前記第2電極との間に静電容量を形成する
請求項1から請求項7のいずれか1項に記載の表示装置。 - 前記第2電極は、平面視で前記信号線に交差して設けられ、
前記第1電極は、平面視で前記第2電極に交差して設けられる、
請求項1から請求項6のいずれか1項に記載の表示装置。 - 前記第1電極と前記第2電極とは同層に設けられ、前記第1電極及び前記第2電極と、前記共通電極との間には絶縁基板が設けられており、
前記第1電極は接続線を介して第1方向に連結されており、前記第2電極は、前記第1電極及び前記第2電極とは異なる層に形成されるブリッジ配線を介して前記第1方向と交差する第2方向に連結されている
請求項1から請求項6のいずれか1項に記載の表示装置。 - 前記表示機能層は、高分子有機材料を含む自発光層である請求項10に記載の表示装置。
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