JP2018036295A - 液晶表示装置及び液晶表示装置の製造方法 - Google Patents
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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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- G02F1/1333—Constructional arrangements; Manufacturing methods
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- G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
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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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- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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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
- G02F1/01—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
- 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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- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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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
- G02F1/01—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
- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
- G02F1/133723—Polyimide, polyamide-imide
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- 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
- G02F1/01—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
- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- 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
- G02F1/01—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
- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134318—Electrodes characterised by their geometrical arrangement having a patterned common electrode
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- 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
- G02F1/01—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
- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- 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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- 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
- G09G3/3406—Control of illumination source
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- 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
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Abstract
Description
第1実施形態に係る液晶表示装置について図1〜図6を用いて説明する。図1は、第1実施形態に係る液晶表示装置の構成を示す模式図である。本実施形態の液晶表示装置は、液晶パネル1、バックライトユニット2、プリズムシート3、及び光学フィルム4を備えて構成される。バックライトユニット2とプリズムシート3の間には、光拡散シート等を更に配置してもよい。
次に、第2実施形態に係る液晶表示装置について図7及び図8を用いて説明する。図7は、第2実施形態に係る液晶表示装置の構成を示す模式図である。図7に示す液晶表示装置は、図1に示す第1実施形態の液晶表示装置と比較して、主に電極10の構造が異なっている。また、横電界方式の液晶パネル1bであればその他の構成等に関わらず本発明の効果が得られることを示すために、ネマティック液晶の材料等を変えている。以下、第1実施形態と異なる構成について説明する。
次に、第3実施形態に係る液晶表示装置について図9を用いて説明する。図9は、第3実施形態に係る液晶表示装置の構成を示す模式図である。図9に示す液晶表示装置は、図1に示す第1実施形態の液晶表示装置と比較して、バックライトユニット2bがいわゆるローカルディミング(Local Dimming)機能に対応している点が異なっている。以下、第1実施形態と異なる構成について説明する。
上述の実施形態は、何れも本発明を実施するにあたっての具体化の例を示したものに過ぎず、これらによって本発明の技術的範囲が限定的に解釈されてはならないものである。すなわち、本発明はその技術思想、又はその主要な特徴から逸脱することなく、様々な形で実施することができる。
2、2b :バックライトユニット
3 :プリズムシート
4 :光学フィルム
10 :電極
10a、10c :画素電極
10b、10d :共通電極
11 :液晶層
12a、12b :ガラス基板
13 :絶縁層
14a、14b :偏光板
15 :カラーフィルタ
21 :導光板
22 :LED光源
Claims (11)
- 液晶層を挟んで対向する一対のガラス基板を有し、前記一対のガラス基板のうちの1つのガラス基板に形成された複数の電極間に電圧を印加して、前記液晶層と平行な電界を生成することで表示を制御する液晶パネルを備える液晶表示装置であって、
前記液晶パネルを背面又は側面から照射するバックライトユニットと前記液晶パネルとの間に、長軸方向と短軸方向とで分子の光吸収率が異なる二色性色素を含む光学フィルムを備え、
前記二色性色素の光吸収率が相対的に大きい長軸方向が前記光学フィルムのフィルム面に対して垂直に配向している
液晶表示装置。 - 前記電極は、前記一対のガラス基板のうちの前記バックライトユニットの側のガラス基板に形成された線状の画素電極及び線状の共通電極を含み、
前記画素電極と前記共通電極との間に電圧を印加して表示を制御する
請求項1に記載の液晶表示装置。 - 前記電極は、前記一対のガラス基板のうちの前記バックライトユニットの側のガラス基板に形成された線状の画素電極、及び前記画素電極と異なる配線層に形成された矩形状の共通電極を含み、
前記画素電極と前記共通電極との間に電圧を印加して表示を制御する
請求項1に記載の液晶表示装置。 - 前記バックライトユニットは、前記液晶パネルを照射する領域が複数の区画に分割され、
前記液晶パネルに表示する映像の明るさ分布に応じて、前記液晶パネルを照射する光量を前記区画ごとに調整する
請求項1から3のいずれか1項に記載の液晶表示装置。 - 前記光学フィルムは、前記二色性色素が添加された高分子液晶を含み、前記高分子液晶が前記光学フィルムのフィルム面に対して垂直に配向している
請求項1から4のいずれか1項に記載の液晶表示装置。 - 前記高分子液晶に添加される前記二色性色素の濃度が、2.0重量%以上である
請求項5に記載の液晶表示装置。 - 前記光学フィルムは、可視光領域における吸収波長が互いに異なる2種類以上の前記二色性色素を含む
請求項1から6のいずれか1項に記載の液晶表示装置。 - 前記光学フィルムと前記バックライトユニットの間に、前記バックライトユニットからの光を前記液晶パネルの正面方向に集光するプリズムシートを更に備える
請求項1から7のいずれか1項に記載の液晶表示装置。 - 前記一対のガラス基板のうちの、一方のガラス基板に設けられた偏光板の吸収軸と、他方のガラス基板に設けられた偏光板の吸収軸とが互いに直交している
請求項1から8のいずれか1項に記載の液晶表示装置。 - 液晶層を挟んで対向する一対のガラス基板を有し、前記一対のガラス基板のうちの1つのガラス基板に形成された複数の電極間に電圧を印加して、前記液晶層と平行な電界を生成することで表示を制御する液晶パネルを備える液晶表示装置の製造方法であって、
長軸方向と短軸方向とで分子の光吸収率が異なる二色性色素を含む光学フィルムを、前記二色性色素の光吸収率が相対的に大きい長軸方向が前記光学フィルムのフィルム面に対して垂直に配向するように形成するステップと、
前記液晶パネルを背面又は側面から照射するバックライトユニットと前記液晶パネルとの間に、前記光学フィルムを配置するステップと、
を有する液晶表示装置の製造方法。 - 前記光学フィルムを形成するステップは、
垂直配向性ポリイミドの配向膜をベースフィルムに形成するステップと、
前記二色性色素を添加した高分子液晶の溶液を前記配向膜にコーティングして、前記ベースフィルムにコーティング膜を形成するステップと、
前記コーティング膜に紫外光を照射して前記コーティング膜を硬化させるステップと、
を有する請求項10に記載の液晶表示装置の製造方法。
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| JP2016166591A JP6777463B2 (ja) | 2016-08-29 | 2016-08-29 | 液晶表示装置及び液晶表示装置の製造方法 |
| KR1020170068361A KR101904355B1 (ko) | 2016-08-29 | 2017-06-01 | 액정 표시 장치 및 액정 표시 장치의 제조 방법 |
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| JPWO2022176803A1 (ja) * | 2021-02-16 | 2022-08-25 | ||
| WO2022176803A1 (ja) * | 2021-02-16 | 2022-08-25 | 富士フイルム株式会社 | 光学異方性膜、光学フィルムおよび表示装置 |
| US12032188B2 (en) | 2021-02-16 | 2024-07-09 | Fujifilm Corporation | Optically anisotropic film, optical film, and display device |
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| Publication number | Publication date |
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| KR20180025147A (ko) | 2018-03-08 |
| KR101904355B1 (ko) | 2018-11-28 |
| JP6777463B2 (ja) | 2020-10-28 |
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