JPH021896U - - Google Patents
Info
- Publication number
- JPH021896U JPH021896U JP1988080380U JP8038088U JPH021896U JP H021896 U JPH021896 U JP H021896U JP 1988080380 U JP1988080380 U JP 1988080380U JP 8038088 U JP8038088 U JP 8038088U JP H021896 U JPH021896 U JP H021896U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- electroluminescent lamp
- frequency
- conditions
- usage conditions
- 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 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Liquid Crystal (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
第１図は本考案装置の略示ブロツク線図、第２
図はＥＬパネル点灯時の発光波長と相対輝度の関
係を示すグラフ、第３図は発光点のシフト状態を
説明する色度図、第４図はＥＬパネルの部分縦断
面図である。
１……電界発光灯（ＥＬパネル）、１１……半
透過型ＬＣＤ、１２……電圧および周波数の変換
器、１３……交流電源。
Fig. 1 is a schematic block diagram of the device of the present invention;
The figure is a graph showing the relationship between the emission wavelength and relative brightness when the EL panel is turned on, FIG. 3 is a chromaticity diagram explaining the shift state of the light emitting point, and FIG. 4 is a partial vertical cross-sectional view of the EL panel. 1... Electroluminescent lamp (EL panel), 11... Transflective LCD, 12... Voltage and frequency converter, 13... AC power supply.
Claims (1)
用される電界発光灯であつて、この電界発光灯と
その駆動電源との間に、駆動電圧および周波数を
、明るい使用条件下で低電圧高周波に、また暗い
使用条件下で高電圧低周波に切替える電圧および
周波数の変換器を接続したことを特徴とする電界
発光灯。 This is an electroluminescent lamp used as a backlight for a transflective liquid crystal display device, and between this electroluminescent lamp and its driving power source, the driving voltage and frequency can be changed to low voltage and high frequency under bright usage conditions, and under dark usage conditions. An electroluminescent lamp characterized in that it is connected to a voltage and frequency converter that switches to high voltage and low frequency under the conditions of use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988080380U JPH021896U (en) | 1988-06-16 | 1988-06-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988080380U JPH021896U (en) | 1988-06-16 | 1988-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH021896U true JPH021896U (en) | 1990-01-09 |
Family
ID=31305209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988080380U Pending JPH021896U (en) | 1988-06-16 | 1988-06-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH021896U (en) |
-
1988
- 1988-06-16 JP JP1988080380U patent/JPH021896U/ja active Pending
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