JPH0210131U - - Google Patents
Info
- Publication number
- JPH0210131U JPH0210131U JP8904388U JP8904388U JPH0210131U JP H0210131 U JPH0210131 U JP H0210131U JP 8904388 U JP8904388 U JP 8904388U JP 8904388 U JP8904388 U JP 8904388U JP H0210131 U JPH0210131 U JP H0210131U
- Authority
- JP
- Japan
- Prior art keywords
- viewing angle
- display device
- vehicle
- angle control
- control filter
- 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
- 230000010287 polarization Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 2
Description
第１図は本考案の実施例の構成図、第２図は１
／２波長板の作用を表す図、第３図は１／２波長
板による反射率の計算例のための説明図、第４図
は２枚の１／４波長板を作用を示す図、第５図は
従来の視角制御フイルタを装着した構成を示す図
である。
１１……ＣＲＴ（表示装置）、１２……液晶パ
ネル（視角制御フイルタ）、１３……（液晶パネ
ル）駆動制御装置、１４……１／２波長板。
Fig. 1 is a configuration diagram of an embodiment of the present invention, and Fig. 2 is a 1
Figure 3 is an explanatory diagram for an example of calculating reflectance using a 1/2 wavelength plate. Figure 4 is a diagram showing the effect of two 1/4 wavelength plates. FIG. 5 is a diagram showing a configuration in which a conventional viewing angle control filter is installed. 11...CRT (display device), 12...Liquid crystal panel (viewing angle control filter), 13...(liquid crystal panel) drive control device, 14...1/2 wavelength plate.
Claims (1)
置の前面に配置され、電圧の印加に伴い運転者の
方向の視認域を制限する視角制御フイルタと、該
視角制御フイルタの前面に置かれ、前記視角制御
フイルタを通過した光の偏光方向を前記ＣＲＴの
中心からの光がフロントガラスで反射して運転者
のアイポイントに入るまでの光路から作られる入
射面と平行な方向の偏光方向近傍にする波長板と
、車両の走行と停止の検出信号から、前記視角制
御フイルタを駆動制御する、駆動制御装置とから
なる車両用表示装置。 a CRT display device mounted on a vehicle; a viewing angle control filter placed in front of the display device to limit the visible range in the driver's direction as a voltage is applied; The polarization direction of the light that has passed through the viewing angle control filter is made to be near the polarization direction in a direction parallel to the plane of incidence created by the optical path of the light from the center of the CRT reflected by the windshield and entering the driver's eye point. A vehicle display device comprising a wavelength plate and a drive control device that drives and controls the viewing angle control filter based on detection signals of running and stopping of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8904388U JPH0210131U (en) | 1988-07-06 | 1988-07-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8904388U JPH0210131U (en) | 1988-07-06 | 1988-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0210131U true JPH0210131U (en) | 1990-01-23 |
Family
ID=31313598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8904388U Pending JPH0210131U (en) | 1988-07-06 | 1988-07-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0210131U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009080321A (en) * | 2007-09-26 | 2009-04-16 | Xanavi Informatics Corp | Display device and polarization control method |
| JP2010060674A (en) * | 2008-09-02 | 2010-03-18 | Hayashi Telempu Co Ltd | On-vehicle liquid crystal display |
| WO2010101141A1 (en) * | 2009-03-04 | 2010-09-10 | 林テレンプ株式会社 | Vehicle-mounted display device |
-
1988
- 1988-07-06 JP JP8904388U patent/JPH0210131U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009080321A (en) * | 2007-09-26 | 2009-04-16 | Xanavi Informatics Corp | Display device and polarization control method |
| JP2010060674A (en) * | 2008-09-02 | 2010-03-18 | Hayashi Telempu Co Ltd | On-vehicle liquid crystal display |
| WO2010101141A1 (en) * | 2009-03-04 | 2010-09-10 | 林テレンプ株式会社 | Vehicle-mounted display device |
| JP5357958B2 (en) * | 2009-03-04 | 2013-12-04 | 林テレンプ株式会社 | In-vehicle display device |
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