JPH0392821A - Liquid crystal device - Google Patents
Liquid crystal deviceInfo
- Publication number
- JPH0392821A JPH0392821A JP22929489A JP22929489A JPH0392821A JP H0392821 A JPH0392821 A JP H0392821A JP 22929489 A JP22929489 A JP 22929489A JP 22929489 A JP22929489 A JP 22929489A JP H0392821 A JPH0392821 A JP H0392821A
- Authority
- JP
- Japan
- Prior art keywords
- light
- liquid crystal
- crystal device
- electrode
- transmitting electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 40
- 238000009792 diffusion process Methods 0.000 claims abstract description 5
- 230000010287 polarization Effects 0.000 claims description 6
- 239000011521 glass Substances 0.000 abstract description 6
- 238000005286 illumination Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 239000011230 binding agent Substances 0.000 abstract description 3
- 239000000945 filler Substances 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 3
- 239000013078 crystal Substances 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は偏光子及び光透過電極によって挟まれた液晶が
、電圧のかかり方によって偏光状態が変わることを利用
した液晶デバイスに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid crystal device that utilizes the fact that the polarization state of a liquid crystal sandwiched between a polarizer and a light-transmitting electrode changes depending on how a voltage is applied.
［従来の技術］
従来の液晶デバイスは第３図に示すように、互いに偏光
方向が直角となっている偏光子２および６と透明な光透
過電極３で液晶４を挟み、液晶４にかかる電圧の状態に
よって液晶４の透過光の偏光面を変えて、光が透過する
状態及び光が透過しない状態をつくるようになっており
、このオン・オフの組合せによって信号を伝達する装置
、特に表示装置として多く使われている。[Prior Art] As shown in FIG. 3, in a conventional liquid crystal device, a liquid crystal 4 is sandwiched between polarizers 2 and 6 whose polarization directions are perpendicular to each other and a transparent light-transmitting electrode 3, and the voltage applied to the liquid crystal 4 is Depending on the state of It is often used as
［発明が解決しようとする諜題コ
しかしながら、このような従来の液晶デバイスは、透過
してきた光は第４図に示すように指向性が強く、正面か
ら見た時は明るく見えるが少し斜めから見る場合は暗く
なってしまうため、多人数で一度で見る表示装置に使用
するには不向きであり、また、一人で見る場合でも見る
方向が限定ざれ、使いづらいものとな−ってしまうとい
う欠点をもっていた。[The secret problem that the invention aims to solve]However, in such conventional liquid crystal devices, the transmitted light is highly directional as shown in Figure 4, and although it looks bright when viewed from the front, it is difficult to see when viewed from a slight angle. Since it becomes dark when viewed, it is not suitable for use in a display device that can be viewed by many people at once, and even when viewed by one person, the viewing direction is limited, making it difficult to use. had.
本発明の目的は、この従来技術の欠点に鑑み、見る方向
が限定されない使い易い表示装置を可能とする液晶デバ
イスを提供することにある。SUMMARY OF THE INVENTION In view of the drawbacks of the prior art, an object of the present invention is to provide a liquid crystal device that enables an easy-to-use display device that is not limited to viewing directions.
［課題を解決するための手段］
上記目的を達成するため本発明では、７夜晶と、この液
晶を挟んで対向する光透Ａ７ａ極と、さらにこの液晶お
よび光透過電極を間に配置して対向する偏光子とを備え
、この液晶は、光透過電極を介して印加される電圧によ
って透過光の偏光状態が変化する、液晶デバイスに於い
て、光透過電極に拡散処理を施すようにしている。[Means for Solving the Problems] In order to achieve the above object, the present invention includes a seven-night crystal, a light-transmitting A7a pole facing each other with this liquid crystal in between, and further disposing this liquid crystal and a light-transmitting electrode between them. In a liquid crystal device, the polarization state of transmitted light is changed by a voltage applied through the light-transmitting electrode, and the light-transmitting electrode is subjected to a diffusion process. .
［作用］
この構成において、光源を発した光は、偏光子、光透過
電極および液晶を透過する際に、光透過電極によって印
加される電圧に応じた偏光機能の状態の液晶によって、
印加電圧に応じた情報が含められ、そして液晶デバイス
から射出するのであるが、射出光は光透過電極の光拡散
性によって拡散されてより広範囲の方向へ進む。したが
って、射出光はより広い範囲の角度から観察される。す
なわち、液晶デバイスから出てくる光の指向性は減少し
、したがって表示装置に適したイ夜晶デバイスとなる。[Function] In this configuration, when the light emitted from the light source passes through the polarizer, the light-transmitting electrode, and the liquid crystal, the light is polarized by the liquid crystal, which has a polarization function according to the voltage applied by the light-transmitting electrode.
Information corresponding to the applied voltage is included and is emitted from the liquid crystal device, but the emitted light is diffused by the light diffusing properties of the light-transmitting electrode and travels in a wider range of directions. Therefore, the emitted light is observed from a wider range of angles. That is, the directivity of light coming out of the liquid crystal device is reduced, thus making it a night crystal device suitable for display devices.
［実施例］ 以下、図面を用いて本発明の実施例を説明する。[Example] Embodiments of the present invention will be described below with reference to the drawings.
実ｌ口』工
第１図は木発明の第１の実施例に係る液晶デバイスを示
す。同図に於いて、１は照明光源、２は第１の偏光子、
３は光透過電極、４は液晶材料、５は拡散処理をした光
透過電極、６は第１の偏光子の偏光方向と直角方向の偏
光を透過させる第２の偏光子である。Figure 1 shows a liquid crystal device according to a first embodiment of the invention. In the figure, 1 is an illumination light source, 2 is a first polarizer,
3 is a light-transmitting electrode, 4 is a liquid crystal material, 5 is a light-transmitting electrode subjected to diffusion treatment, and 6 is a second polarizer that transmits polarized light in a direction perpendicular to the polarization direction of the first polarizer.
光透Ａ電極５は薄いガラス板にＳｉ０２ｌｌｉをディッ
ピング法によって付け高熱処理をした後、酸化インジウ
ム膜（以後，−．ＩＴＯ膜と呼ぶ）が真空蒸着法又はス
パッタリング法によりガラス表面に均一に付けられてい
る。本実施例では、ガラス板に紫外線硬化型のバインダ
ー内にフィラーを混合させたものを均一に塗布し紫外線
を照射して硬化させた後、これにＩＴＯ膜を付けてある
。The light-transmitting A electrode 5 is made by applying Si02lli to a thin glass plate by a dipping method and subjecting it to high heat treatment, and then an indium oxide film (hereinafter referred to as an ITO film) is uniformly applied to the glass surface by a vacuum evaporation method or a sputtering method. ing. In this example, a mixture of a filler and an ultraviolet curable binder is uniformly applied to a glass plate, cured by irradiation with ultraviolet rays, and then an ITO film is attached thereto.
この処理により光透過電極５は光拡散性を有するため、
照明光源１を発した光は、偏光子２、光透過電極３およ
び液晶材料４を透過した後、光透過電極５を透過する際
にこの光拡散作用を受け、光透過電極５を透過した後は
第２図に示すような配光分布となる。Due to this treatment, the light-transmitting electrode 5 has light diffusing properties, so
The light emitted from the illumination light source 1 passes through the polarizer 2, the light-transmitting electrode 3, and the liquid crystal material 4, and then receives the light diffusion effect when passing through the light-transmitting electrode 5. has a light distribution as shown in FIG.
したがって、光拡散透過電極５を備えた本実施例の液晶
デバイスにおいては、光拡散電極５の光拡散作用により
、液晶デバイスに対し正面以外の位置でも明るい画像が
得られる。すなわちこの液晶デバイスを用いた表示装置
は、多人数が同時に見ることができ、又、個人的な表示
装置としても見易いものとなる。Therefore, in the liquid crystal device of this embodiment including the light diffusing and transmitting electrode 5, a bright image can be obtained even at positions other than in front of the liquid crystal device due to the light diffusing effect of the light diffusing electrode 5. In other words, a display device using this liquid crystal device can be viewed by a large number of people at the same time, and can also be easily viewed as a personal display device.
犬旌里ユ
本発明の第２の実施例においては、ガラス板の表面を砂
かけによって荒らしてから洗浄し、その上にＳｔ○２膜
をディッピング法によって付けて高熱処理をした後、さ
らｌ，：ＩＴＯＩ１Ｍを真空蒸着法又はスパッタリング
法によって付けることによって光透過拡散性電極がつく
られる。そして、この電極を第１実施例の場合と同様に
観察側の光透過電極５として使用する。In the second embodiment of the present invention, the surface of the glass plate is roughened by sanding, then washed, a St○2 film is applied thereon by a dipping method, and then subjected to high heat treatment. , :ITOI1M is applied by vacuum evaporation or sputtering to create a light-transmissive and diffusive electrode. Then, this electrode is used as the light-transmitting electrode 5 on the viewing side as in the first embodiment.
これによって、液晶デバイスからの出射光の指向性は減
少するため、この液晶デバイスは第１実施例と同様に見
易く、又、多人数で見る表示装置に使用可能となる。As a result, the directivity of the light emitted from the liquid crystal device is reduced, so that this liquid crystal device is easy to see as in the first embodiment and can be used in a display device that can be viewed by a large number of people.
実』０Ｉ１
ここでは、ガラス板を数ｕｍの厚さのテフロン層で被覆
した後、Ｓｉｎ，膜をディッピング法により付け、さら
に高温熱処理をした後、ＩＴＯ膜を真空蒸着法又はスパ
ッタリング法によって付ける。そして、これを第１実施
例の場合と同様に観察側の光透過電極５としーで液晶デ
バイスに使用する。この液晶デバイスも、液晶デバイス
からの出射光の指向性は減少し、第１実施例と同様に見
易く、又多人数で見る表示装置に使用可能となる。Here, a glass plate is coated with a Teflon layer several micrometers thick, a Sin film is applied by a dipping method, and after further high-temperature heat treatment, an ITO film is applied by a vacuum evaporation method or a sputtering method. Then, as in the case of the first embodiment, this is used in a liquid crystal device as the light-transmitting electrode 5 on the observation side. This liquid crystal device also has a reduced directivity of the light emitted from the liquid crystal device, is easy to see as in the first embodiment, and can be used in a display device that can be viewed by a large number of people.
［発明の効果コ
以上説明したように本発明によれば、液晶デバイスで使
用されている光透過電極に拡散性をもたせるようにした
ため、液晶デバイスからの出射光の指向性が減少し、し
たがって本発明の液晶デバイスを使った表示装置では、
見る方向によって明るさが大きく変るという特性が減っ
て見易くなり、又多人数が同時に見ることができる。[Effects of the Invention] As explained above, according to the present invention, the light-transmitting electrode used in the liquid crystal device is made to have diffusive properties, so that the directivity of the light emitted from the liquid crystal device is reduced. In the display device using the liquid crystal device of the invention,
The characteristic that the brightness changes greatly depending on the viewing direction is reduced, making it easier to see, and it can be viewed by many people at the same time.
第１図は、本発明の第１の実施例に係る液晶デバイスの
構成図、
第２図は、第１図の装置の場合の出射光の配光特性を示
すグラフ、
第３図は、従来の液晶デバイスの構成図、そして
第４図は、従来の液晶デバイスにおける出射光の配光特
性を示すグラフである。
照明光源、
６・偏光子、
光透過電極、
７夜晶、
拡散如埋した光透過電極。FIG. 1 is a configuration diagram of a liquid crystal device according to a first embodiment of the present invention, FIG. 2 is a graph showing the light distribution characteristics of emitted light in the case of the device shown in FIG. 1, and FIG. 3 is a graph showing a conventional liquid crystal device. FIG. 4 is a diagram showing the configuration of a liquid crystal device, and FIG. 4 is a graph showing the light distribution characteristics of emitted light in a conventional liquid crystal device. Illumination light source, 6. Polarizer, light transmitting electrode, 7 night crystal, diffused buried light transmitting electrode.
Claims (1)
、さらにこの液晶および光透過電極を間に配置して対向
する偏光子とを備え、この液晶は、光透過電極を介して
印加される電圧によって透過光の偏光状態が変化する、
液晶デバイスに於いて、光透過電極に拡散処理を施した
ことを特徴とする液晶デバイス。(1) Comprising a liquid crystal, light-transmitting electrodes facing each other with this liquid crystal in between, and a polarizer facing each other with the liquid crystal and light-transmitting electrode interposed therebetween; The polarization state of transmitted light changes depending on the applied voltage.
A liquid crystal device characterized in that a light transmitting electrode is subjected to a diffusion treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22929489A JPH0392821A (en) | 1989-09-06 | 1989-09-06 | Liquid crystal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22929489A JPH0392821A (en) | 1989-09-06 | 1989-09-06 | Liquid crystal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0392821A true JPH0392821A (en) | 1991-04-18 |
Family
ID=16889879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22929489A Pending JPH0392821A (en) | 1989-09-06 | 1989-09-06 | Liquid crystal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0392821A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5779913A (en) * | 1980-11-07 | 1982-05-19 | Fujitsu Ltd | Liquid crystal display device |
-
1989
- 1989-09-06 JP JP22929489A patent/JPH0392821A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5779913A (en) * | 1980-11-07 | 1982-05-19 | Fujitsu Ltd | Liquid crystal display device |
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