JP2017146449A - 液晶表示装置 - Google Patents
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- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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- G—PHYSICS
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- G02F1/00—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
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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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- G02F1/133776—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers having structures locally influencing the alignment, e.g. unevenness
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- G—PHYSICS
- G02—OPTICS
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- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134372—Electrodes characterised by their geometrical arrangement for fringe field switching [FFS] where the common electrode is not patterned
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- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
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Abstract
Description
Claims (16)
- 走査線と、
映像信号線と、
前記走査線と前記映像信号線とに接続されたTFTと、を有するTFT基板と、
対向基板と、
前記TFT基板と前記対向基板との間に挟持された液晶と、を有する液晶表示装置であって、
前記TFT基板には、前記走査線と前記映像信号線と、前記液晶との間には有機絶縁膜が形成され、
前記有機絶縁膜と前記液晶との間には、前記TFTと接続した第1電極が形成され、
前記第1電極と前記液晶との間には配向膜が形成され、
前記第1の電極と前記TFTとは、前記有機絶縁膜に形成されたコンタクトホールを介して接続し、
前記有機絶縁膜は、断面において、前記第1の電極と前記TFTとの接続箇所に近い側から、凸部と凹部とが形成されていることを特徴とする液晶表示装置。 - 前記凸部と前記凹部とは、前記コンタクトホールにおける前記有機絶縁膜の端部から4乃至10μmの範囲に存在していることを特徴とする請求項1に記載の液晶表示装置。
- 前記凸部と前記凹部は、前記コンタクトホールにおける前記有機絶縁膜の端部から3乃至8μmの範囲に存在していることを特徴とする請求項1に記載の液晶表示装置。
- 前記凸部の頂点と前記凹部の底点との高さの差は0.3μm以上、1μm以下であることを特徴とする請求項1に記載の液晶表示装置。
- 前記凸部と前記凹部とは、前記接続箇所から、前記映像信号線の延在方向に離間した領域に形成されている、ことを特徴とする請求項1乃至4の何れか1項に記載の液晶表示装置
- 前記凸部は、前記走査線の延在方向に、複数個形成されている、ことを特徴とする請求項5に記載の液晶表示装置。
- 前記対向基板は、遮光層を有しており、
前記凸部は、前記遮光層と前記TFT基板との間に設けられていることを特徴とする請求項1乃至6の何れか1項に記載の液晶表示装置。 - 走査線と、
映像信号線と、
前記走査線と前記映像信号線とに接続されたTFTと、を有するTFT基板と、
対向基板と、
前記TFT基板と前記対向基板との間に挟持された液晶と、を有する液晶表示装置であって、
前記走査線と前記映像信号線と、前記液晶との間には、有機絶縁膜が形成され、
前記有機絶縁膜と前記液晶との間の上には、前記TFTと接続した第1電極が形成され、
前記第1電極と前記液晶との間には、配向膜が形成され、
前記第1の電極と前記TFTとは、前記有機絶縁膜に形成されたコンタクトホールを介して接続し、
前記有機絶縁膜と前記配向膜と間には、前記コンタクトホールを含む前記映像信号線の延在する方向の断面において、前記コンタクトホールのテーパ部分において、凸部を形成するための物質が積層されていることを特徴とする液晶表示装置。 - 前記凸部を形成するための物質は、前記コンタクトホールにおける前記有機絶縁膜の端部から4乃至10μmの範囲において、前記有機絶縁膜に積層されていることを特徴とする請求項8に記載の液晶表示装置。
- 前記凸部を形成するための物質は、前記コンタクトホールにおける前記有機絶縁膜の端部から3乃至8μmの範囲において、前記有機絶縁膜に積層されていることを特徴とする請求項8に記載の液晶表示装置。
- 前記凸部を形成するための物質の高さは、0.3μm以上、1μm以下であることを特徴とする請求項8に記載の液晶表示装置。
- 前記凸部を形成するための物質は金属によって構成されていることを特徴とする請求項8に記載の液晶表示装置。
- 前記凸部を形成するための物質は有機材料によって構成されていることを特徴とする請求項8に記載の液晶表示装置。
- 第1の方向に延在し、第2の方向に配列した走査線と、第2の方向に延在し、第1の方向に配列した映像信号線の間に画素が形成されたTFT基板と、対向基板の間に液晶が挟持された液晶表示装置であって、
前記画素には、TFTを覆って、有機絶縁膜が形成され、前記有機絶縁膜の上には、第1の電極と、第2の電極が無機絶縁膜を介して対向して形成され、その上に配向膜が形成され、
前記第2の電極と前記TFTは、前記有機絶縁膜に形成されたコンタクトホールを介して接続し、
前記有機絶縁膜の上に形成された前記配向膜の上辺の曲線は、前記コンタクトホールを含む前記第2の方向の断面において、前記有機絶縁膜の前記コンタクトホール内の端部を原点とし、前記TFT基板の平面と平行な方向をxとし、前記配向膜の上辺を示す曲線をf(x)とした場合、
前記f(x)の2次微分の符号が少なくとも1回変化し、
前記符号の変化する範囲は、前記原点から前記x方向において、4乃至10μmの範囲であることを特徴とする液晶表示装置。 - 前記符号の変化する範囲は、前記原点から前記x方向において、3乃至8μmの範囲であることを特徴とする請求項14に記載の液晶表示装置。
- 前記f(x)をax2+bx4で近似した場合に、前記2次微分の符号が少なくとも1回変化することを特徴とする請求項14または15に記載の液晶表示装置。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016027833A JP6649788B2 (ja) | 2016-02-17 | 2016-02-17 | 液晶表示装置 |
| US15/423,729 US10409112B2 (en) | 2016-02-17 | 2017-02-03 | Liquid crystal display device |
| CN201710078984.9A CN107092113B (zh) | 2016-02-17 | 2017-02-14 | 液晶显示装置 |
| JP2020005662A JP6960002B2 (ja) | 2016-02-17 | 2020-01-17 | 液晶表示装置 |
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| JP2016027833A JP6649788B2 (ja) | 2016-02-17 | 2016-02-17 | 液晶表示装置 |
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| JP2020005662A Division JP6960002B2 (ja) | 2016-02-17 | 2020-01-17 | 液晶表示装置 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020008742A (ja) * | 2018-07-09 | 2020-01-16 | 株式会社ジャパンディスプレイ | 表示装置 |
| JP2024055647A (ja) * | 2022-10-07 | 2024-04-18 | 株式会社ジャパンディスプレイ | 表示装置 |
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| JP2020008742A (ja) * | 2018-07-09 | 2020-01-16 | 株式会社ジャパンディスプレイ | 表示装置 |
| JP7096718B2 (ja) | 2018-07-09 | 2022-07-06 | 株式会社ジャパンディスプレイ | 表示装置 |
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| US11762243B2 (en) | 2018-07-09 | 2023-09-19 | Japan Display Inc. | Display device |
| US12066719B2 (en) | 2018-07-09 | 2024-08-20 | Japan Display Inc. | Display device |
| US12436430B2 (en) | 2018-07-09 | 2025-10-07 | Magnolia White Corporation | Display device |
| JP2024055647A (ja) * | 2022-10-07 | 2024-04-18 | 株式会社ジャパンディスプレイ | 表示装置 |
| JP7834339B2 (ja) | 2022-10-07 | 2026-03-24 | 株式会社Magnolia White | 表示装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107092113B (zh) | 2021-05-14 |
| US20170235167A1 (en) | 2017-08-17 |
| CN107092113A (zh) | 2017-08-25 |
| US10409112B2 (en) | 2019-09-10 |
| JP6649788B2 (ja) | 2020-02-19 |
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