JPH0442688U - - Google Patents
Info
- Publication number
- JPH0442688U JPH0442688U JP8399290U JP8399290U JPH0442688U JP H0442688 U JPH0442688 U JP H0442688U JP 8399290 U JP8399290 U JP 8399290U JP 8399290 U JP8399290 U JP 8399290U JP H0442688 U JPH0442688 U JP H0442688U
- Authority
- JP
- Japan
- Prior art keywords
- cover
- light absorbing
- backlight device
- light
- absorbing means
- 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
- 239000003973 paint Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
第１図は本考案に係るバツクライトの基本構成
を説明する横断面図、第２図は本考案の効果を説
明するための要部拡大図、第３図は従来技術との
比較において本考案の効果を実験的に示す線図、
第４図は従来のバツクライトの構成を示す斜視図
。
１……導光板、２……冷陰極管、４……拡散板
、６……カバー、７……密閉空間、１１……光吸
収部材。
Fig. 1 is a cross-sectional view illustrating the basic structure of the backlight according to the present invention, Fig. 2 is an enlarged view of the main parts to explain the effects of the present invention, and Fig. 3 is a comparison of the present invention with the conventional technology. Diagram showing the effect experimentally,
FIG. 4 is a perspective view showing the structure of a conventional backlight. DESCRIPTION OF SYMBOLS 1... Light guide plate, 2... Cold cathode tube, 4... Diffusion plate, 6... Cover, 7... Sealed space, 11... Light absorption member.
Claims (1)
も一端部にカバー６を取り付けて密閉空間７を形
成し、該密閉空間に冷陰極管２を封入したバツク
ライト装置において、上記カバーと導光板との接
合部に光吸収手段１１を設けたことを特徴とする
バツクライト装置。 ２ 上記光吸収手段１１はカバーの内面に塗布さ
れる光吸収色の塗料により形成されることを特徴
とする請求項１に記載のバツクライト装置。 ３ 上記光吸収手段１１はカバーの内面に付着さ
れる光吸収色のテープにより形成されることを特
徴とする請求項１に記載のバツクライト装置。 ４ 上記光吸収手段１１は冷陰極管の軸線方向に
延びるカバーと導光板との接合縁部にのみ設けら
れることを特徴とする請求項１に記載のバツクラ
イト装置。[Claims for Utility Model Registration] 1. A backlight device in which a cover 6 is attached to at least one end of a light guide plate 1 having a diffuser plate 4 on its surface to form a closed space 7, and a cold cathode tube 2 is enclosed in the closed space. . A backlight device characterized in that a light absorbing means 11 is provided at the joint between the cover and the light guide plate. 2. The back light device according to claim 1, wherein the light absorbing means 11 is formed of a light absorbing colored paint applied to the inner surface of the cover. 3. The backlight device according to claim 1, wherein the light absorbing means 11 is formed of a light absorbing colored tape attached to the inner surface of the cover. 4. The backlight device according to claim 1, wherein the light absorbing means 11 is provided only at a joint edge between the cover and the light guide plate extending in the axial direction of the cold cathode tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8399290U JPH0442688U (en) | 1990-08-10 | 1990-08-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8399290U JPH0442688U (en) | 1990-08-10 | 1990-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0442688U true JPH0442688U (en) | 1992-04-10 |
Family
ID=31632117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8399290U Pending JPH0442688U (en) | 1990-08-10 | 1990-08-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0442688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008071626A (en) * | 2006-09-14 | 2008-03-27 | Fujifilm Corp | Planar lighting device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5616175A (en) * | 1979-07-18 | 1981-02-16 | Matsushita Electric Ind Co Ltd | Transmission type display unit |
| JPS6028788B2 (en) * | 1977-12-08 | 1985-07-06 | 株式会社クボタ | Manufacturing method of inorganic board material |
-
1990
- 1990-08-10 JP JP8399290U patent/JPH0442688U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6028788B2 (en) * | 1977-12-08 | 1985-07-06 | 株式会社クボタ | Manufacturing method of inorganic board material |
| JPS5616175A (en) * | 1979-07-18 | 1981-02-16 | Matsushita Electric Ind Co Ltd | Transmission type display unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008071626A (en) * | 2006-09-14 | 2008-03-27 | Fujifilm Corp | Planar lighting device |
| JP4680857B2 (en) * | 2006-09-14 | 2011-05-11 | 富士フイルム株式会社 | Surface lighting device |