JPS5949549U - Automotive liquid crystal display device - Google Patents
Automotive liquid crystal display deviceInfo
- Publication number
- JPS5949549U JPS5949549U JP14654882U JP14654882U JPS5949549U JP S5949549 U JPS5949549 U JP S5949549U JP 14654882 U JP14654882 U JP 14654882U JP 14654882 U JP14654882 U JP 14654882U JP S5949549 U JPS5949549 U JP S5949549U
- Authority
- JP
- Japan
- Prior art keywords
- detection means
- liquid crystal
- crystal display
- light source
- display device
- 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
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案に係る自動車用液晶表示装置が適用され
た実施例の回路図。第２図は第１図の回路の動作を示し
たタイムチャート。
２・・・・・・電源、４・・・・・・半透過式液晶表示
器、６・・・・・・照明ランプ、８・・・・・・フォト
センサ部、１０・・・・・・ヘッドライトスイッチ部、
１２・・・・・・制御回路。FIG. 1 is a circuit diagram of an embodiment to which an automotive liquid crystal display device according to the present invention is applied. FIG. 2 is a time chart showing the operation of the circuit shown in FIG. 2... Power supply, 4... Transflective liquid crystal display, 6... Illumination lamp, 8... Photo sensor section, 10...・Headlight switch part,
12...Control circuit.
Claims (2)
方に配設された光源とを含み、前記光源の光によって夜
間の照明を行なう自動車用液晶表示装置において、薄暮
時にオン信号が出力される薄暮検出手段と、夜間時にオ
ン信号が出力される夜間検出手段と、上記２つの検出手
段の出力信号が共にオフ信号である期間は前記光源を消
灯状態とし、薄暮検出手段の出力信号のみオン信号であ
る期間は前記光源を高輝度で点灯さ゛せ、さらに薄暮検
出手段及び夜間検出手段の出力信号が共にオン信号であ
る期間は前記光源を低輝度で点灯させる制御手段とを設
けたことを特徴とする自動車用液晶表示装置。 −(1) In a liquid crystal display device for an automobile that includes a transflective liquid crystal display and a light source disposed behind the display panel and illuminates at night with the light of the light source, an on signal is output at dusk. The twilight detection means outputs an ON signal during nighttime, and during the period when the output signals of the two detection means are both OFF signals, the light source is turned off, and only the output signal of the twilight detection means is turned on. A control means is provided for lighting the light source at high brightness during a period when the signal is ON, and further lighting the light source at low brightness during a period when the output signals of the twilight detection means and the nighttime detection means are both ON signals. Automotive liquid crystal display device. −
暮検出手段は周囲の明るさが設定値以下になったことを
検出するフォトセンサ、夜間検出手段はヘッドライトス
イッチであることを特徴とする自動車用液晶表示装置。(2) Scope of Utility Model Registration Claim 1, wherein the twilight detection means is a photo sensor that detects when the surrounding brightness has fallen below a set value, and the nighttime detection means is a headlight switch. Automotive liquid crystal display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14654882U JPS5949549U (en) | 1982-09-27 | 1982-09-27 | Automotive liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14654882U JPS5949549U (en) | 1982-09-27 | 1982-09-27 | Automotive liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5949549U true JPS5949549U (en) | 1984-04-02 |
Family
ID=30326166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14654882U Pending JPS5949549U (en) | 1982-09-27 | 1982-09-27 | Automotive liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5949549U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117944B1 (en) * | 1971-07-09 | 1976-06-05 | ||
| JPS5532280B2 (en) * | 1975-07-10 | 1980-08-23 |
-
1982
- 1982-09-27 JP JP14654882U patent/JPS5949549U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117944B1 (en) * | 1971-07-09 | 1976-06-05 | ||
| JPS5532280B2 (en) * | 1975-07-10 | 1980-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5949549U (en) | Automotive liquid crystal display device | |
| JPS608155U (en) | Automotive instrument display illuminance adjustment device | |
| JPS58140840U (en) | Vehicle display device | |
| JPH0439075Y2 (en) | ||
| JPS6313072Y2 (en) | ||
| JP2523274Y2 (en) | Vehicle display device | |
| JPS5989293U (en) | Automotive digital clock dimmer circuit | |
| JPS58112654U (en) | Vehicle display device | |
| JPS628133U (en) | ||
| JPS60164451U (en) | Vehicle back mirror - lighting system for internal camera | |
| JPS588641U (en) | Vehicle lamp automatic lighting device | |
| JPS581163U (en) | Speedometer display dimming device | |
| JPS6159454U (en) | ||
| JPS58126544U (en) | Vehicle display device | |
| JPS5836780U (en) | Lighting equipment for liquid crystal display elements | |
| JPH01170028U (en) | ||
| JPS6214494U (en) | ||
| JPS60166650U (en) | lighting equipment | |
| JPS5825242U (en) | Automatic lighting control device for vehicles | |
| JPS5875050U (en) | Warning lamp brightness switching device | |
| JPS6055552U (en) | automatic light on/off device | |
| JPS60138846U (en) | Vehicle display device | |
| JPS5937144U (en) | Dimmer device for vehicle display device | |
| JPS58189217U (en) | Internally illuminated flashing road sign | |
| JPS58168007U (en) | Vehicle lights |