JPS60254026A - Liquid crystal antidazzle mirror device - Google Patents
Liquid crystal antidazzle mirror deviceInfo
- Publication number
- JPS60254026A JPS60254026A JP11030984A JP11030984A JPS60254026A JP S60254026 A JPS60254026 A JP S60254026A JP 11030984 A JP11030984 A JP 11030984A JP 11030984 A JP11030984 A JP 11030984A JP S60254026 A JPS60254026 A JP S60254026A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- mirror device
- reflectivity
- glare
- glass substrate
- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13725—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on guest-host interaction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
- B60R1/083—Anti-glare mirrors, e.g. "day-night" mirrors
- B60R1/088—Anti-glare mirrors, e.g. "day-night" mirrors using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Optical Elements Other Than Lenses (AREA)
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
く技術分野〉
本発明は、液晶の電気光学効果を応用した防眩ミラー装
置に関する。詳しくは、相転移型ゲストホストモードを
利用して構成した防眩ミラー装置に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an anti-glare mirror device that utilizes the electro-optic effect of liquid crystal. Specifically, the present invention relates to an anti-glare mirror device configured using a phase change guest-host mode.
く従来技術〉
液晶の電気光学効果を応用して防眩ミラーを構成した例
としては、特許出願公告 昭４８−３５３８４や特許出
願公告、昭５２Ｌ−２０ｓ・５４等があるが、いずれも
動的散乱モード（以下、ｐｓＭと略す）を利用している
ために防眩時の表示かにとっておシ、拡散反射となって
しまう。そのため防眩ミ、ラーに写つｔ像がボケてしま
い、良質な反射像が得られないという欠点がある。Prior art> Examples of anti-glare mirrors that utilize the electro-optic effect of liquid crystals include patent application announcement 1984-35384, patent application announcement 1984-20L-20S/54, etc., but all of them are dynamic mirrors. Since the scattering mode (hereinafter abbreviated as psM) is used, the display during anti-glare will result in diffuse reflection. As a result, the t-images reflected in the anti-glare mirrors and mirrors become blurred, resulting in a drawback that a high-quality reflected image cannot be obtained.
〈目 的〉
本発明はこれらの欠点全解決したもので、その目的は、
実用性のある液晶防眩ミラー装置を提供する事にある。<Purpose> The present invention has solved all of these drawbacks, and its purpose is to:
The purpose is to provide a practical liquid crystal anti-glare mirror device.
く構 成〉
本発明の液晶防眩ミラーは、液晶のｔ気５を学効果を応
用し、相転位型ゲストホストモード音用いたものである
。Structure> The liquid crystal anti-glare mirror of the present invention applies the optical effect of the liquid crystal and uses a phase transition type guest-host mode sound.
つまり、本発明の液“晶防眩ミラー装置は、透明電極を
設けた上基板と鏡面反射性を有する電極を設けた下基板
をシール材によって挾持し、七の間に二色性染料を溶解
させたコレステリック液晶を封入したものである。この
様な構造の相転移型ゲストホストパネルに電圧を印加す
ると、印加電圧に応じて反射率が変化するが、これを防
眩ミラーとして利用するわけである。In other words, the liquid crystal anti-glare mirror device of the present invention has an upper substrate provided with a transparent electrode and a lower substrate provided with a specularly reflective electrode, which are sandwiched by a sealing material, and a dichroic dye is dissolved between them. When a voltage is applied to a phase change type guest-host panel with this structure, the reflectance changes depending on the applied voltage, and this is used as an anti-glare mirror. be.
く実癩例〉 以下、本発明による液晶防眩ミラーについて述べる。Leprosy case> The liquid crystal anti-glare mirror according to the present invention will be described below.
（実捲例１） 第１図は、本発明による防眩ミラー装置である。(Example 1) FIG. 1 shows an anti-glare mirror device according to the present invention.
第１図において、透明電極４が形成された上ガラス基板
１と、銀、アルミニウム、クロム等ヲ用いて鏡面反射性
を有する電極５が形成された下ガラス基板２をシール材
乙によって挾持し、その間に第１表の様な分子構造を持
つ二色性染料を溶解させた、第２表の様な組成を持つ液
晶を封入した。In FIG. 1, an upper glass substrate 1 on which a transparent electrode 4 is formed, and a lower glass substrate 2 on which a specularly reflective electrode 5 made of silver, aluminum, chromium, etc. is formed, are sandwiched by a sealing material B. In between, a dichroic dye having a molecular structure as shown in Table 1 was dissolved, and a liquid crystal having a composition as shown in Table 2 was sealed.
〔第 １ 表） （第 ２ 表） なお、第１表の様な混合比により、色調は黒色になる。[Table 1] (Table 2) Note that the color tone becomes black according to the mixing ratio shown in Table 1.
第３表は、第１図の様な構造を持つ液晶防眩ミラー装置
におｈて、第１表の混合比の二色性染料濃度を１％、１
．５俤、２％、５チとした場合の、駆動電圧に対する反
射率の変化を示すものであシ、第２図はそれをグラフに
表わしたも”のである。Table 3 shows the dichroic dye concentration of 1%, 1
．． It shows the change in reflectance with respect to the driving voltage in the case of 5cm, 2%, and 5cm, and FIG. 2 is a graphical representation of this.
（第 ３ 表） なお、駆動は６４Ｈ２のスタティック駆動である。(Table 3) Note that the drive is 64H2 static drive.
一般に、非防眩時の反射率は１５％前後、防眩時の反射
率は４５％前後が、自動車用防、舷ミラー装置として適
当であると言われているので、第３表あるいは第２図か
られ〃）るように、染料濃度を１．５％程度にして、非
防眩時には１０Ｖ駆動で、防眩時にはＯｖ駆動にずれば
、液晶防眩ミラー装置が形成できる。又、その中間の４
ｖ程度と６Ｖ程度で駆動すれば、反射率に階調性を持た
せる事も可能である。 “
（実崩例２）
第１図の様な構造金持つセルに、第４表の様な分子構造
を持つ二色性染料を溶解させた、第５表の様な組成を持
つ液晶を封入した。なお、第４表の様な混合比により、
色調は濃紺になる。In general, it is said that a reflectance of around 15% when not anti-glare and a reflectance of around 45% when anti-dazzling is appropriate for an automobile anti-glare and side mirror device. As shown in the figure, a liquid crystal anti-glare mirror device can be formed by setting the dye concentration to about 1.5% and driving at 10V when not anti-glare and shifting to Ov drive when anti-glare. Also, the 4 in between
By driving at about V and about 6 V, it is possible to give gradation to the reflectance. (Example 2) A liquid crystal with a composition as shown in Table 5, in which a dichroic dye with a molecular structure as shown in Table 4 is dissolved, is sealed in a cell with a metal structure as shown in Figure 1. In addition, according to the mixing ratio as shown in Table 4,
The color becomes dark blue.
（第 ４ 表）
第６表は、第１図の様な構造を持つ液晶防眩ミラー装置
において、第４表の混合比の二色性染料全１％、１．５
係、２％、６％とした場合の、駆動電圧に対する反射率
を示すものであり、第３図はそれをグラフに表わしたも
のである。(Table 4) Table 6 shows that in the liquid crystal anti-glare mirror device having the structure shown in Figure 1, dichroic dyes with the mixing ratios of Table 4 total 1% and 1.5
FIG. 3 shows the reflectance with respect to the drive voltage in the case of 2% and 6%.
（第 ５ 表）
第６表あるいは第３図かられかるように、染料濃度を１
．５％程度にして［１〜１０Ｖの範囲で駆動すれば、液
晶防眩ミラー装置が形成できる。(Table 5) As shown in Table 6 or Figure 3, the dye concentration was
．． If the voltage is set to about 5% and driven in the range of 1 to 10 V, a liquid crystal anti-glare mirror device can be formed.
（第 ６ 表）
（実権例３）
第４図に示す様な構造にして液晶防眩ミラー装置を構成
した。第４図において、透明電極４が形成された、上ガ
ラス基板１と下ガシス基板２ｒシール材３によって挾持
し、その間に相転移型ゲストホスト用液晶６を封入した
。７はいわゆる鏡であり、その上の相転移型ゲストホス
トパネルの透過率の変化により、防眩ミラーとなる。(Table 6) (Example 3) A liquid crystal anti-glare mirror device was constructed with the structure shown in FIG. In FIG. 4, an upper glass substrate 1 and a lower glass substrate 2 on which transparent electrodes 4 are formed are sandwiched between sealing materials 3, and a phase change type guest-host liquid crystal 6 is sealed between them. Reference numeral 7 denotes a so-called mirror, which becomes an anti-glare mirror by changing the transmittance of the phase change guest-host panel above it.
（実権例４）
可とり性のフィルム基板ｒガラス基板の代シに用すて、
液晶防眩ミラー装置を構成した。(Real example 4) Used as a substitute for a removable film substrate r glass substrate,
A liquid crystal anti-glare mirror device was constructed.
（実施例５）
第５図は１本発明によシ液晶防眩ミラー装置の一実施例
である。第５図において、８は相転移型ゲストホストモ
ードを利用した液晶防眩ミラーである。９はフォトセン
サーであシ、入射光の強度に応じて８の液晶防眩ミラー
の反射率を調節するためのセンサーの役目をする。１０
はミラ一本体をささえる支持体であるが、この中に自動
調光回路を内蔵しておく。(Embodiment 5) FIG. 5 shows an embodiment of a liquid crystal anti-glare mirror device according to the present invention. In FIG. 5, 8 is a liquid crystal anti-glare mirror that utilizes a phase change type guest-host mode. Reference numeral 9 is a photosensor, which serves as a sensor for adjusting the reflectance of the liquid crystal anti-glare mirror 8 in accordance with the intensity of incident light. 10
is a support that supports the main body of the mirror, and an automatic dimming circuit is built into it.
く効 果〉
以上述べてきたように本発明によれば、防眩ミラーとし
て必要な反射率を確保しながらも、良質な反射像を得ら
れるという効果がある。又、構造が簡単であるため、製
造コストが安いという利点もある。Effects> As described above, according to the present invention, there is an effect that a high-quality reflected image can be obtained while ensuring the reflectance necessary as an anti-glare mirror. Furthermore, since the structure is simple, manufacturing costs are low.
第１図は、本発明の液晶防眩ミシー装置の実権例を示す
。
第２図および第６図は、それぞれ本発明による液晶防眩
ミラー装置の駆動電圧−反射率特性を示す。
第４図及び第５図は、それぞれ本発明の液晶防眩ミラー
装置の他の実施例を示す。
１・・・上ガシス基板 ２・・・下ガラス基板３・・・
シール材 ４・・・透明電極
５・・・鏡面反射性會有する電極
６・・・相転移型ゲストホスト用液晶
以上
出願人 株式会社東海理化電機製作所
エプソン株式会社
第１図
ょｐｌｆゆ、 州勧
第３図FIG. 1 shows a practical example of the liquid crystal anti-glare device of the present invention. FIG. 2 and FIG. 6 each show the drive voltage-reflectance characteristics of the liquid crystal anti-glare mirror device according to the present invention. 4 and 5 respectively show other embodiments of the liquid crystal anti-glare mirror device of the present invention. 1... Upper glass substrate 2... Lower glass substrate 3...
Sealing material 4... Transparent electrode 5... Electrode with specular reflection 6... Phase change type liquid crystal for guest host Applicant: Tokai Rika Denki Seisakusho Co., Ltd. Epson Corporation (Fig. 1) Figure 3
Claims (1)
いて、相転移型ゲストホストモードを用いた事を特徴と
する液晶防眩ミラー装置。A liquid crystal anti-glare mirror device characterized in that an anti-glare mirror configured by applying the electro-optic effect of liquid crystal uses a phase change type guest-host mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11030984A JPS60254026A (en) | 1984-05-30 | 1984-05-30 | Liquid crystal antidazzle mirror device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11030984A JPS60254026A (en) | 1984-05-30 | 1984-05-30 | Liquid crystal antidazzle mirror device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60254026A true JPS60254026A (en) | 1985-12-14 |
Family
ID=14532438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11030984A Pending JPS60254026A (en) | 1984-05-30 | 1984-05-30 | Liquid crystal antidazzle mirror device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60254026A (en) |
-
1984
- 1984-05-30 JP JP11030984A patent/JPS60254026A/en active Pending
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