JP2016200659A - トランジスタ基板および表示装置 - Google Patents
トランジスタ基板および表示装置 Download PDFInfo
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- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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Abstract
【解決手段】表示装置のトランジスタ基板において、ゲート信号または映像信号の一方の駆動信号が供給される複数の信号線は、同一の駆動信号が供給される第1信号線を含む。第1信号線は、駆動ドライバに接続され、基板の端部と画素領域との間に位置する縁領域および画素領域に形成されている。縁領域において、第1信号線は、第2層に形成された第2配線から第1層に形成された第1配線を経由するように形成されている。
【選択図】図6
Description
本実施の形態で説明する技術は、表示素子層が設けられた表示領域の複数の素子に、表示領域の周囲から信号を供給する構成を備える表示装置に広く適用可能である。なお、表示素子層は光の出力をコントロールできるものであればどのような構造でも良い。表示素子層の例としては液晶分子、有機EL(Electro-Luminescence)、Micro Electro Mechanical System(MEMS)シャッターが挙げられる。本実施の形態では、表示素子層及び表示装置の代表例として、液晶表示装置を取り上げて説明する。
まず、表示装置の基本構成について説明する。図1は、本実施の形態の表示装置の一例を示す平面図である。図2は、図1のA−A線に沿った断面図である。図3は、図2のB部の拡大断面図である。図4は、図2のC部の拡大断面図である。
次に、図1に示す引出配線部LDの詳細について説明する。図5は、図1に示す引出配線部のレイアウトを模式的に示す拡大平面図である。図6は、図5に示す引出配線部において、複数の配線を2層の配線層で引き回した場合のレイアウト例を示す拡大平面図である。図7〜図12は、図6に示すレイアウト例の配線の各部(A部、B部、C部、D部、E部、F部)を示す拡大平面図である。図13は、図9に示す配線のG部を詳細に示す拡大平面図である。図14は、図13のA−A線に沿った拡大断面図である。
本実施の形態の表示装置LCD1における変形例について説明する。変形例においては、上述した図6〜図16に示す表示装置LCD1との相違点を主に説明する。図22は、図6(図14)に対する変形例であって、5本の配線が一組の複数の配線を2層の配線層で引き回した場合のレイアウト例を示す拡大断面図である。図23は、図6(図14)に対する変形例であって、4本の配線が一組の複数の配線を3層の配線層で引き回した場合のレイアウト例を示す拡大断面図である。
以上説明した本実施の形態の表示装置LCD1(LCD3、LCD4)によれば、表示装置LCD1の額縁部FLにおいて、表示装置LCD1の性能への影響を抑制しながら、複数の配線WLを効率的にレイアウトする技術を提供することができる。より詳細には、以下の通りである。
BM 遮光膜
BS、FS 基板
BSb、FSb 背面
BSf、FSf 前面
BSg、FSg 基材
BSs1、BSs2、BSs3、BSs4 辺
CC 回路部
CE 共通電極
CF カラーフィルタ
CFr、CFg、CFb カラーフィルタ画素
CHP 半導体チップ
CNT1 制御回路
CR 変換部
CA 変換領域
DP 表示部
DPQ 表示素子部
DR1 駆動回路
DT ドレイン電極
EG11、EG12、EG21、EG22 端部
FL 額縁部
GP 隙間
GT ゲート電極
IL1、IL2、IL3 絶縁膜
IPC 入力部
L1、L2、L3 配線層
LCD1、LCD2、LCD3、LCD4 表示装置
LCL 液晶層
LD 引出配線部
LS 光源
OC1、OC2 樹脂層
OP1 開口部
P21、P22 位置
PE 画素電極
PL1、PL2 偏光板
PS 部材
Q1 トランジスタ
S1、S2、S3 離間距離
SCL 半導体層
SL シール部
SLp シール材
ST ソース電極
SW1、SW2 信号線
VW 観者
W1、W2、W3 配線幅
WL、WL1、WL2、WL3 配線
Claims (12)
- 基板と、
トランジスタを有し、画像を表示させる画素が形成された画素領域と、
前記基板の端部と前記画素領域との間に位置する縁領域と、
ゲート信号または映像信号の一方の駆動信号が供給される複数の信号線と、
前記信号線を覆う絶縁膜と、
前記縁領域に設けられ、少なくとも前記駆動信号を供給する駆動ドライバと、
第1層に形成された第1配線と、
前記第1層とは前記絶縁膜を介して異なる層にある第2層に形成された第2配線と、
を備え、
複数の前記信号線は、同一の前記駆動信号が供給される第1信号線を含み、
前記第1信号線は、前記駆動ドライバに接続され、前記縁領域および前記画素領域に形成されており、
前記縁領域において、
前記第1信号線は、前記第2配線から前記第1配線を経由するように形成されている、トランジスタ基板。 - 請求項1に記載のトランジスタ基板において、
平面視において、前記第1配線と前記第2配線とは重畳している、トランジスタ基板。 - 請求項1または2に記載のトランジスタ基板において、
前記第1配線の材料と前記第2配線の材料とは、互いに異なっており、
前記第2配線の材料の比抵抗は、前記第1配線の材料の比抵抗よりも低い、トランジスタ基板。 - 請求項1ないし3のいずれか一項に記載のトランジスタ基板において、
前記第1配線の線幅は、前記第2配線の線幅よりも広い、トランジスタ基板。 - 請求項1ないし4のいずれか一項に記載のトランジスタ基板において、
前記第2配線の厚みは、前記第1配線の厚みよりも厚い、トランジスタ基板。 - 請求項1ないし5のいずれか一項に記載のトランジスタ基板において、
前記第2層における前記第2配線の配線密度は、前記第1層における前記第1配線の配線密度よりも高い、トランジスタ基板。 - 請求項1ないし6のいずれか一項に記載のトランジスタ基板において、
前記縁領域において、複数の前記信号線を交差させて、前記信号線の配列順番を変更する交差部がある、トランジスタ基板。 - 請求項1ないし7のいずれか一項に記載のトランジスタ基板において、
平面視の前記縁領域において、
前記駆動ドライバは、前記画素領域に対して第1方向に設けられ、
前記第1信号線は、配線層を変換する変換部を介して前記第2配線から前記第1配線を経由し、
前記駆動ドライバの端部と前記画素領域の端部との間の前記第1方向の領域に前記変換部がある、トランジスタ基板。 - 請求項1ないし8のいずれか一項に記載のトランジスタ基板において、
平面視の前記縁領域において、
前記駆動ドライバは、前記画素領域に対して第1方向に設けられ、
前記第1信号線は、配線層を変換する変換部を介して前記第2配線から前記第1配線を経由し、
前記駆動ドライバの端部と前記画素領域の端部との間の、前記第1方向に交差する第2方向の半分の位置から、当該画素領域の端部までの間に前記変換部がない、トランジスタ基板。 - 請求項1ないし9のいずれか一項に記載のトランジスタ基板において、
隣り合う前記第1信号線が前記第1配線を経由し、
隣り合う前記第1信号線の前記第1配線内における経由長さは実質的に同一である、トランジスタ基板。 - 請求項1ないし10のいずれか一項に記載のトランジスタ基板において、
第2信号線において、前記第2配線を経由し、前記第1配線を経由しない、トランジスタ基板。 - 請求項1ないし11のいずれか一項に記載のトランジスタ基板を備えた表示装置であって、
前記縁領域には、紫外線硬化樹脂が形成されており、
前記基板は、光透過性であり、
前記信号線が形成された領域と前記紫外線硬化樹脂が形成された領域とが重畳した重畳領域において、前記基板を介して紫外光を前記紫外線硬化樹脂に照射可能な隙間を作るように、前記信号線が形成されている、表示装置。
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