JP2000338483A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JP2000338483A JP2000338483A JP11152227A JP15222799A JP2000338483A JP 2000338483 A JP2000338483 A JP 2000338483A JP 11152227 A JP11152227 A JP 11152227A JP 15222799 A JP15222799 A JP 15222799A JP 2000338483 A JP2000338483 A JP 2000338483A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- backlight
- diffusion plate
- crystal panel
- 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
- Liquid Crystal (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、液晶表示装置に係
り、特に、２つの液晶パネルを用いて両方向で表示する
液晶表示装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display, and more particularly, to a liquid crystal display using two liquid crystal panels to display images in both directions.
【０００２】[0002]
【従来の技術】従来（図示せず）の液晶表示装置は、両
面表示を行なう場合、液晶パネル，制御基板，バックラ
イトが組み込まれた２つの液晶モジュ−ルへ、ホストシ
ステムからの画像信号を入力し、２つ組み合わせて画像
信号を両面表示して一方の面及び他方の面に各々表示し
ていた。2. Description of the Related Art A conventional liquid crystal display device (not shown) transmits an image signal from a host system to two liquid crystal modules including a liquid crystal panel, a control board, and a backlight when performing double-sided display. The image signal is input, the two are combined, and the image signal is displayed on both sides and displayed on one side and the other side, respectively.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、液晶表
示装置は、両面表示を行なう場合、液晶パネル，制御基
板，バックライトが組み込まれた２つの液晶モジュ−ル
が必要となるため、コスト高になり、かつ制御基板及び
バックライトが２つ必要になるため、装置の厚みが増大
するという課題があった。However, the liquid crystal display device requires two liquid crystal modules including a liquid crystal panel, a control board, and a backlight when performing double-sided display. In addition, since two control boards and two backlights are required, there is a problem that the thickness of the device increases.
【０００４】そこで、本発明の目的は、低コストで薄型
を実現した両面表示を行なう液晶表示装置を提供するこ
とにある。An object of the present invention is to provide a low-cost, thin, liquid crystal display device that performs double-sided display.
【０００５】[0005]
【課題を解決するための手段】上述の課題を解決するた
めに、本発明の液晶表示装置は、画像信号を出力する制
御基板と、この制御基板から出力された画像信号を表示
する透過型の第１液晶パネルと、この第１液晶パネルの
裏面に配置された第１拡散板と、この第１拡散板に対向
して配置された第２拡散板と、この第２拡散板の裏面に
設けた上記画像信号を表示する透過型の第２液晶パネル
と、上記第１拡散板及び第２拡散板間にランプを設けて
上記第１液晶パネル及び第２液晶パネルを照明するバッ
クライトとで構成されたことを特徴とする。In order to solve the above-mentioned problems, a liquid crystal display device according to the present invention comprises a control board for outputting an image signal, and a transmissive type for displaying the image signal output from the control board. A first liquid crystal panel, a first diffusion plate disposed on the back surface of the first liquid crystal panel, a second diffusion plate disposed opposite to the first diffusion plate, and provided on a back surface of the second diffusion plate. A second transmissive liquid crystal panel for displaying the image signal, and a backlight for illuminating the first and second liquid crystal panels by providing a lamp between the first and second diffusers. It is characterized by having been done.
【０００６】[0006]
【発明の実施の形態】次に、本発明の一実施の形態によ
る液晶表示装置を図面を参照して説明する。Next, a liquid crystal display according to an embodiment of the present invention will be described with reference to the drawings.
【０００７】図１は、本発明の一実施の形態による液晶
表示装置の構成図である。FIG. 1 is a configuration diagram of a liquid crystal display device according to an embodiment of the present invention.
【０００８】図２は、本発明の一実施の形態による液晶
表示装置の分解図である。FIG. 2 is an exploded view of a liquid crystal display according to an embodiment of the present invention.
【０００９】本発明の一実施の形態による液晶表示装置
は、図１及び図２に示すように、画像信号を出力する制
御基板４と、この制御基板４から出力された画像信号を
表示する透過型の第１液晶パネル１１と、この第１液晶
パネル１１の裏面に配置された第１拡散板２１と、この
第１拡散板２１に対向して配置された第２拡散板２２
と、この第２拡散板２２の裏面に設けた画像信号を表示
する透過型の第２液晶パネル１２と、第１拡散板２１及
び第２拡散板２２間にランプ３１を設けて第１液晶パネ
ル１１及び第２液晶パネル１２を照明するバックライト
３とで構成される。As shown in FIGS. 1 and 2, a liquid crystal display according to an embodiment of the present invention has a control board 4 for outputting an image signal and a transmission board for displaying the image signal output from the control board 4. First liquid crystal panel 11, a first diffusion plate 21 disposed on the back surface of the first liquid crystal panel 11, and a second diffusion plate 22 disposed opposite to the first diffusion plate 21.
A transmission type second liquid crystal panel 12 provided on the back surface of the second diffusion plate 22 for displaying an image signal; and a lamp 31 provided between the first diffusion plate 21 and the second diffusion plate 22 to provide a first liquid crystal panel. 11 and a backlight 3 for illuminating the second liquid crystal panel 12.
【００１０】次に、本発明の一実施の形態による液晶表
示装置の構成を図面を参照して説明する。Next, the configuration of a liquid crystal display device according to an embodiment of the present invention will be described with reference to the drawings.
【００１１】本発明の一実施の形態による液晶表示装置
の構造は、図１及び図２に示すように、透過型の第１液
晶パネル１１及び第２液晶パネル１２を背面同士を向か
い合わせる形で配置し、両方向に光を取出せるようにし
たバックライト３を第１液晶パネル１１及び第２液晶パ
ネル１２の中間に配置させ、バックライト３が冷陰極管
で構成されている場合、ランプイメ−ジを消すために、
第１拡散板２１及び第２拡散板２２をバックライト３と
第１液晶パネル１１及び第２液晶パネル１２の間に入
れ、制御基板４は、バックライト３から第１液晶パネル
１１及び第２液晶パネル１２への光を遮断しないように
配置する。As shown in FIGS. 1 and 2, the structure of a liquid crystal display device according to an embodiment of the present invention is such that a first liquid crystal panel 11 and a second liquid crystal panel 12 of a transmission type are arranged so that the back faces thereof. A backlight 3 arranged so as to be able to extract light in both directions is arranged between the first liquid crystal panel 11 and the second liquid crystal panel 12, and when the backlight 3 is constituted by a cold cathode tube, a lamp image is formed. To erase
The first diffusion plate 21 and the second diffusion plate 22 are inserted between the backlight 3 and the first liquid crystal panel 11 and the second liquid crystal panel 12, and the control substrate 4 controls the first liquid crystal panel 11 and the second liquid crystal from the backlight 3. The panel 12 is arranged so as not to block light.
【００１２】従って、バックライト３より放出される光
は、第１拡散板２１及び第２拡散板２２を通過すること
により、輝度ムラの少ない面光源となって第１液晶パネ
ル１１及び第２液晶パネル１２透過型液晶パネルに到達
し、１つのバックライトユニットで２つの透過型の液晶
パネル１１，１２を表示させることができる。Therefore, the light emitted from the backlight 3 passes through the first diffusion plate 21 and the second diffusion plate 22 to become a surface light source with less luminance unevenness, and the first liquid crystal panel 11 and the second liquid crystal The panel 12 reaches the transmissive liquid crystal panel, and two transmissive liquid crystal panels 11 and 12 can be displayed by one backlight unit.
【００１３】なお、本発明の一実施の形態では、バック
ライトとして冷陰極管を用いた直下型バックライトとし
て説明したが、エッジライト型で導光板を使った方式で
も導光板より両方向に光を取出すことにより、同様の効
果を得られ、かつ必要に応じてＤＢＥＦシ−ト及び拡散
シ−トなどを組み合わせることにより、輝度を高めるこ
とも可能である。In one embodiment of the present invention, a direct type backlight using a cold cathode tube as a backlight has been described. However, even in an edge light type using a light guide plate, light is transmitted in both directions from the light guide plate. The same effect can be obtained by taking out, and the luminance can be increased by combining a DBEF sheet and a diffusion sheet as required.
【００１４】[0014]
【発明の効果】以上説明したように、本発明の液晶表示
装置によれば、両面表示を構成する上で資材が減ること
になってコストが低減でき、かつバックライトが１つに
なることにより、装置の厚さが低減できるとともに、消
費電力を低減する効果がある。As described above, according to the liquid crystal display device of the present invention, the number of materials for forming a double-sided display can be reduced, the cost can be reduced, and a single backlight can be provided. This has the effect of reducing the thickness of the device and reducing power consumption.
【図１】本発明の一実施の形態による液晶表示装置の構
成図である。FIG. 1 is a configuration diagram of a liquid crystal display device according to an embodiment of the present invention.
【図２】本発明の一実施の形態による液晶表示装置の分
解図である。FIG. 2 is an exploded view of the liquid crystal display device according to the embodiment of the present invention.
【符号の説明】 ３ バックライト ４ 制御基板 １１ 第１液晶パネル １２ 第２液晶パネル ２１ 第１拡散板 ２２ 第２拡散板 ３１ ランプ[Description of Signs] 3 Backlight 4 Control board 11 First liquid crystal panel 12 Second liquid crystal panel 21 First diffusion plate 22 Second diffusion plate 31 Lamp
Claims (1)
御基板から出力された画像信号を表示する透過型の第１
液晶パネルと、この第１液晶パネルの裏面に配置された
第１拡散板と、この第１拡散板に対向して配置された第
２拡散板と、この第２拡散板の裏面に設けた上記画像信
号を表示する透過型の第２液晶パネルと、上記第１拡散
板及び第２拡散板間にランプを設けて上記第１液晶パネ
ル及び第２液晶パネルを照明するバックライトとで構成
されたことを特徴とする液晶表示装置。1. A control board for outputting an image signal, and a transmission-type first board for displaying an image signal output from the control board.
A liquid crystal panel, a first diffusion plate disposed on the back surface of the first liquid crystal panel, a second diffusion plate disposed opposite to the first diffusion plate, and the second diffusion plate provided on the back surface of the second diffusion plate. A second liquid crystal panel of a transmission type for displaying an image signal, and a backlight for illuminating the first and second liquid crystal panels by providing a lamp between the first and second diffusion plates. A liquid crystal display device characterized by the above-mentioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11152227A JP2000338483A (en) | 1999-05-31 | 1999-05-31 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11152227A JP2000338483A (en) | 1999-05-31 | 1999-05-31 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000338483A true JP2000338483A (en) | 2000-12-08 |
Family
ID=15535878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11152227A Pending JP2000338483A (en) | 1999-05-31 | 1999-05-31 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000338483A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100445670B1 (en) * | 2001-11-30 | 2004-08-21 | 아이에스하이텍 주식회사 | Dual Back Light Unit |
| US7090365B2 (en) | 2003-11-06 | 2006-08-15 | Nec Lcd Technologies, Ltd. | Backlight unit having an inclined light emission surface |
| US7106394B2 (en) | 2003-03-27 | 2006-09-12 | Nec Lcd Technologies, Ltd. | Backlight unit in a liquid crystal display device |
| US7123318B2 (en) | 2002-10-24 | 2006-10-17 | Alps Electric Co., Ltd. | Double-sided emissive liquid crystal display module containing double-sided illumination plate and multiple display panels |
| US7150557B2 (en) | 2004-07-06 | 2006-12-19 | Au Optronics Corp | Back light module for use in a dual-sided display |
| CN1301434C (en) * | 2003-06-18 | 2007-02-21 | 友达光电股份有限公司 | Double-faced type backlight assembly and LCD apparatus |
| CN1322363C (en) * | 2003-05-19 | 2007-06-20 | Nec液晶技术株式会社 | Back light unit capable of rapid mounting and dismounting luminous device |
| US7237923B2 (en) | 2004-04-22 | 2007-07-03 | Nec Lcd Technologies, Ltd. | Backlight unit having a cooling member |
| CN100381912C (en) * | 2004-07-13 | 2008-04-16 | 友达光电股份有限公司 | Back light module for double side display |
| CN104019401A (en) * | 2013-02-28 | 2014-09-03 | 联想(北京)有限公司 | Backlight modules, double-display-screen structure and electronic equipment |
-
1999
- 1999-05-31 JP JP11152227A patent/JP2000338483A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100445670B1 (en) * | 2001-11-30 | 2004-08-21 | 아이에스하이텍 주식회사 | Dual Back Light Unit |
| US7123318B2 (en) | 2002-10-24 | 2006-10-17 | Alps Electric Co., Ltd. | Double-sided emissive liquid crystal display module containing double-sided illumination plate and multiple display panels |
| US7106394B2 (en) | 2003-03-27 | 2006-09-12 | Nec Lcd Technologies, Ltd. | Backlight unit in a liquid crystal display device |
| CN1322363C (en) * | 2003-05-19 | 2007-06-20 | Nec液晶技术株式会社 | Back light unit capable of rapid mounting and dismounting luminous device |
| US7940347B2 (en) | 2003-05-19 | 2011-05-10 | Nec Corporation | Backlight units with quick installation and removal of light emitting structures |
| CN1301434C (en) * | 2003-06-18 | 2007-02-21 | 友达光电股份有限公司 | Double-faced type backlight assembly and LCD apparatus |
| US7090365B2 (en) | 2003-11-06 | 2006-08-15 | Nec Lcd Technologies, Ltd. | Backlight unit having an inclined light emission surface |
| CN100437271C (en) * | 2003-11-06 | 2008-11-26 | Nec液晶技术株式会社 | Backlight unit having an inclined light emission surface |
| US7237923B2 (en) | 2004-04-22 | 2007-07-03 | Nec Lcd Technologies, Ltd. | Backlight unit having a cooling member |
| US7150557B2 (en) | 2004-07-06 | 2006-12-19 | Au Optronics Corp | Back light module for use in a dual-sided display |
| CN100381912C (en) * | 2004-07-13 | 2008-04-16 | 友达光电股份有限公司 | Back light module for double side display |
| CN104019401A (en) * | 2013-02-28 | 2014-09-03 | 联想(北京)有限公司 | Backlight modules, double-display-screen structure and electronic equipment |
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