JPH0373986U - - Google Patents
Info
- Publication number
- JPH0373986U JPH0373986U JP13533589U JP13533589U JPH0373986U JP H0373986 U JPH0373986 U JP H0373986U JP 13533589 U JP13533589 U JP 13533589U JP 13533589 U JP13533589 U JP 13533589U JP H0373986 U JPH0373986 U JP H0373986U
- Authority
- JP
- Japan
- Prior art keywords
- brightness
- light emitting
- emitting diode
- switching
- diode array
- 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 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Liquid Crystal Display Device Control (AREA)
Description
第１図は本考案の表示装置の原理ブロツク図、
第２図は本考案の一実施例の概略構成図、第３図
は第２図における液晶パネルとＬＥＤアレイの平
面図である。
１……液晶パネル、２……ＬＥＤアレイ、３…
…駆動手段、４……スイツチング手段、４ａ……
光電変換素子、１１……液晶パネル、１１ａ……
文字領域、１２……ＬＥＤアレイ、１２ａ……Ｌ
ＥＤ、１３……駆動回路、１４……スイツチング
回路、１４ａ……光電変換素子、１４ｂ……スイ
ツチ部。
Figure 1 is a block diagram of the principle of the display device of the present invention.
FIG. 2 is a schematic configuration diagram of an embodiment of the present invention, and FIG. 3 is a plan view of the liquid crystal panel and LED array in FIG. 2. 1...Liquid crystal panel, 2...LED array, 3...
...driving means, 4...switching means, 4a...
Photoelectric conversion element, 11...Liquid crystal panel, 11a...
Character area, 12...LED array, 12a...L
ED, 13...drive circuit, 14...switching circuit, 14a...photoelectric conversion element, 14b...switch section.
Claims (1)
に切り換え可能な液晶パネル１と、 該液晶パネルの裏面側に配設され、該液晶パネ
ルの文字領域と対応する箇所に複数個の発光ダオ
ードを配列してなる発光ダイオードアレイ２と、 前記液晶パネル及び前記発光ダイオードアレイ
を駆動する駆動手段３と、 周囲の明るさを光電変換素子４ａで検出して、
所定の明るさ以上の時に前記発光ダイオードアレ
イを所定の輝度以下に切り換え、それ以外の時は
前記発光ダイオードアレイを通常の輝度に切り換
えるスイツチング手段４とを備えたことを特徴と
する表示装置。[Scope of Claim for Utility Model Registration] A liquid crystal panel 1 capable of switching a predetermined character area between a light transmitting state and a non-light transmitting state; a light emitting diode array 2 formed by arranging a plurality of light emitting diodes at a location; a driving means 3 for driving the liquid crystal panel and the light emitting diode array; detecting ambient brightness with a photoelectric conversion element 4a;
A display device comprising switching means 4 for switching the light emitting diode array to a brightness below a predetermined brightness when the brightness is above a predetermined brightness, and switching the light emitting diode array to normal brightness at other times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13533589U JPH0373986U (en) | 1989-11-24 | 1989-11-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13533589U JPH0373986U (en) | 1989-11-24 | 1989-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0373986U true JPH0373986U (en) | 1991-07-25 |
Family
ID=31682609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13533589U Pending JPH0373986U (en) | 1989-11-24 | 1989-11-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0373986U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003215534A (en) * | 2002-01-23 | 2003-07-30 | Seiko Epson Corp | Backlight control device for liquid crystal display |
-
1989
- 1989-11-24 JP JP13533589U patent/JPH0373986U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003215534A (en) * | 2002-01-23 | 2003-07-30 | Seiko Epson Corp | Backlight control device for liquid crystal display |