JPS58125015A - Reflection type guest-host type color liquid crystal panel - Google Patents
Reflection type guest-host type color liquid crystal panelInfo
- Publication number
- JPS58125015A JPS58125015A JP57008099A JP809982A JPS58125015A JP S58125015 A JPS58125015 A JP S58125015A JP 57008099 A JP57008099 A JP 57008099A JP 809982 A JP809982 A JP 809982A JP S58125015 A JPS58125015 A JP S58125015A
- Authority
- JP
- Japan
- Prior art keywords
- crystal panel
- liquid crystal
- guest
- glass
- liq
- 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
Classifications
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は反射型ゲストホスト型カラー液晶パネルに関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reflective guest-host color liquid crystal panel.
第１図に従来の反射型ゲストホスト型カラー液晶パネル
を示す。図において、１は前面ガラス、２は裏面ガラス
、３はシール樹脂、４は前面電極、５は裏面電極、６は
液晶、７は反射膜である。この従来の液晶パネルにおい
て反射膜７は、裏面ガラス２の外面（液晶パネル外面）
に紙反射板を貼り合わせたり、無機物質を印刷焼成、蒸
着、溶射。FIG. 1 shows a conventional reflective guest-host color liquid crystal panel. In the figure, 1 is a front glass, 2 is a back glass, 3 is a sealing resin, 4 is a front electrode, 5 is a back electrode, 6 is a liquid crystal, and 7 is a reflective film. In this conventional liquid crystal panel, the reflective film 7 is formed on the outer surface of the back glass 2 (the outer surface of the liquid crystal panel).
Paste a paper reflective plate on the surface, or print an inorganic material by firing, vapor deposition, or thermal spraying.
スパッタリングなどを行い形成している。It is formed by sputtering, etc.
前面ガラス１および裏面ガラス２を構成する液晶パネル
用の板ガラスとしては、例えば板厚１．１ｊｆｌｌｌ。The plate glass for the liquid crystal panel constituting the front glass 1 and the rear glass 2 has a plate thickness of, for example, 1.1jflll.
Ｘ ＝９０，２５． Ｙ ＝＝９２−１４．Ｚ ＝
１０８−１２＋Ｊ＝０．３１０７１ 、！／＝０．３
１７２ （色のＸ、 Ｙ。X =90,25. Y==92-14. Z =
108-12+J=0.31071,! /=0.3
172 (Color X, Y.
２表示）のものを用いる。この板ガラスの透過率は第２
図に示すように１００％でないため、裏面ガラス２の外
面に反射膜γを形成した従来の液晶パネルにおいては、
裏面カラス２を往復する間に光が吸収され十分な反射光
が得られなくなり、表示が全体として暗くなり、まだ表
示部と非表示部とのコントラスト（明るさの比）も小さ
くなり、見に〈〈表示品質が低下するという欠点を有し
ていた。2) is used. The transmittance of this plate glass is second
As shown in the figure, since it is not 100%, in a conventional liquid crystal panel in which a reflective film γ is formed on the outer surface of the back glass 2,
Light is absorbed while traveling back and forth through the back glass 2, making it impossible to obtain sufficient reflected light, making the display darker as a whole, and the contrast (ratio of brightness) between the display and non-display areas becoming smaller, making it difficult to see. 〈It had the disadvantage that display quality deteriorated.
本発明は以上のような欠点を除き、表示品質の優れた反
射型ゲストホスト型カラー液晶パネルを提供することを
目的とする。An object of the present invention is to eliminate the above-mentioned drawbacks and provide a reflective guest-host type color liquid crystal panel with excellent display quality.
以下、本発明の一実施例について第３図を用いて説明す
る。図において、８は前面ガラス、９は裏面ガラス、１
ｏはシール樹脂である。１１は前面ガラス８に形成され
た前面電極、１２は裏面ガラス９の内面（液晶パネル内
面）に形成された反射膜である。この反射膜１２は、材
料としてＴｌＯ２を使用し、溶射により１６〜１７μｍ
厚に形成した。なお反射面は乱反射面に形成している。An embodiment of the present invention will be described below with reference to FIG. In the figure, 8 is the front glass, 9 is the back glass, 1
o is a sealing resin. 11 is a front electrode formed on the front glass 8, and 12 is a reflective film formed on the inner surface of the back glass 9 (the inner surface of the liquid crystal panel). This reflective film 12 is made of 16 to 17 μm by thermal spraying using TlO2 as a material.
Formed thickly. Note that the reflective surface is formed into a diffusely reflective surface.
１３は反射膜１２上に形成された裏面電極である。１４
はオルソジシアノ系エステル型の液晶（Ｎｎ型液晶）で
あり、アントラキノン系ブルーの色素が１・６重量％含
まれる。13 is a back electrode formed on the reflective film 12. 14
is an orthodicyano ester type liquid crystal (Nn type liquid crystal) and contains 1.6% by weight of anthraquinone blue pigment.
このようにして構成された液晶パネルのコントラストは
１．８５（６４Ｈ２，実効値３ｖの矩形波電圧印加）で
あり、従来の液晶パネルの同一条件でのコントラストは
１．６０であった。すなわちコントラストは約１５％向
上した。The contrast of the liquid crystal panel constructed in this way was 1.85 (64H2, square wave voltage application with an effective value of 3 V), and the contrast of the conventional liquid crystal panel under the same conditions was 1.60. That is, the contrast was improved by about 15%.
なお前記実施例においては反射膜１２の材料としてＴｌ
Ｏ２を用いだが、ＭｇＯ，ＢａＳＯ４など反射率の高い
他の材料を用いても良く、寸だスパッタリング、蒸着な
ど溶射以外の方法で付着させても良い。膜厚はできる限
り均一であるのが望捷しく、捷だ数μｍ以上あれば良い
が、ガラスからのアルカリ成分溶出防止や反射率の点か
ら厚い方がより良好である。この反射膜１２により従来
アルカリ成分の溶出防止のために形成していた５ｉ０２
膜は不要となり、工程が簡略化される。まだ前記実施例
においては、裏面電極１３は反射膜１２の上に形成した
が、液晶の動作電圧などからＴｌＯ２などの誘電率の大
きい材料の場合には、裏面電極１３の上に反射膜１２を
形成しても良い。々お第１図。In the above embodiment, Tl is used as the material of the reflective film 12.
Although O2 is used, other materials with high reflectivity such as MgO and BaSO4 may be used, and they may be deposited by a method other than thermal spraying such as sputtering or vapor deposition. It is desirable that the film thickness be as uniform as possible, and a thickness of several micrometers or more is sufficient, but the thicker the better from the viewpoint of prevention of alkali component elution from the glass and reflectance. 5i02, which was conventionally formed to prevent elution of alkaline components, by this reflective film 12.
No membrane is required, simplifying the process. In the above embodiment, the back electrode 13 was formed on the reflective film 12, but in the case of a material with a high dielectric constant such as TlO2 due to the operating voltage of the liquid crystal, the reflective film 12 may be formed on the back electrode 13. It may be formed. Figure 1.
第３図において１５は観測者を示している。In FIG. 3, 15 indicates an observer.
以上のように本発明の反射型ゲストホスト型カラー液晶
パネルは液晶パネル内面の裏面ガラス側に反射膜を設け
て構成しだので、裏面ガラスでの光の吸収がなくなり、
従って表示が全体的に明るくなり、捷だ表示部と非表示
部とのコントラストが大きくなり、見やすく表示品質に
優れた反射型ゲストホスト型カラー液晶パネルを提供す
ることができる。As described above, the reflective guest-host color liquid crystal panel of the present invention is constructed by providing a reflective film on the back glass side of the inner surface of the liquid crystal panel, so that light absorption on the back glass is eliminated.
Therefore, the display becomes brighter overall, the contrast between the blurred display area and the non-display area increases, and it is possible to provide a reflective guest-host type color liquid crystal panel that is easy to see and has excellent display quality.
第１図は従来の反射型ゲストホスト型カラー液晶パネル
の断面図、第２図は液晶パネル用板ガラスの透過率−波
長特性図、第３図は本発明における一実施例の反射型ゲ
ストホスト型カラー液晶パネルの断面図である。
８・・・・・・前面ガラス、９・・・・・・裏面ガラス
、１２・・・・・反射膜、１４・・・・・・液晶。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名ｗＪ
１図 ６
／ ３２
第２図Fig. 1 is a cross-sectional view of a conventional reflective guest-host color liquid crystal panel, Fig. 2 is a transmittance-wavelength characteristic diagram of a plate glass for liquid crystal panels, and Fig. 3 is a reflective guest-host type according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a color liquid crystal panel. 8... Front glass, 9... Back glass, 12... Reflective film, 14... Liquid crystal. Name of agent: Patent attorney Toshio Nakao and one other person wJ
Figure 1 6/32 Figure 2
Claims (1)
ゲストホスト型カラー液晶パネル。A reflective guest-host color LCD panel with a reflective film on the back glass side of the inner surface of the LCD panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57008099A JPS58125015A (en) | 1982-01-20 | 1982-01-20 | Reflection type guest-host type color liquid crystal panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57008099A JPS58125015A (en) | 1982-01-20 | 1982-01-20 | Reflection type guest-host type color liquid crystal panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58125015A true JPS58125015A (en) | 1983-07-25 |
Family
ID=11683853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57008099A Pending JPS58125015A (en) | 1982-01-20 | 1982-01-20 | Reflection type guest-host type color liquid crystal panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58125015A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63264725A (en) * | 1987-04-22 | 1988-11-01 | Matsushita Electric Ind Co Ltd | Reflection type liquid crystal display panel |
| US5680188A (en) * | 1993-06-07 | 1997-10-21 | Casio Computer Co., Ltd. | Reflective liquid crystal display device |
-
1982
- 1982-01-20 JP JP57008099A patent/JPS58125015A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63264725A (en) * | 1987-04-22 | 1988-11-01 | Matsushita Electric Ind Co Ltd | Reflection type liquid crystal display panel |
| US5680188A (en) * | 1993-06-07 | 1997-10-21 | Casio Computer Co., Ltd. | Reflective liquid crystal display device |
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