JPH02111922A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPH02111922A JPH02111922A JP63265694A JP26569488A JPH02111922A JP H02111922 A JPH02111922 A JP H02111922A JP 63265694 A JP63265694 A JP 63265694A JP 26569488 A JP26569488 A JP 26569488A JP H02111922 A JPH02111922 A JP H02111922A
- Authority
- JP
- Japan
- Prior art keywords
- light
- light guide
- liquid crystal
- display device
- crystal display
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 38
- 238000000149 argon plasma sintering Methods 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 239000003086 colorant Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000004040 coloring Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000012792 core layer Substances 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000000411 transmission spectrum Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔概 要〕
液晶表示装置に係り、特に液晶表示パネルに背面から光
を照射するバックライトの新規な構成に関し、
液晶表示装置のカラー化手段とバックライト光源とを一
体化することを目的とし、
光を全反射により内部に閉じ込める構成と、内部に光散
乱反射部材とを合わせ具備する棒状の導光部材を、複数
本平行に配設して導光体と、前記導光部材の端面に対向
配置した光源とを具備し、該光源から前記導光部材内に
導入された光が、前記導光部材内部において前記光散乱
反射部材により散乱し、該散乱光が当該導光部材の壁面
より外部に放射される如く構成したバックライト光源を
具備する構成とする。[Detailed Description of the Invention] [Summary] This invention relates to a liquid crystal display device, and in particular, to a new configuration of a backlight that irradiates light to a liquid crystal display panel from the back side. A plurality of bar-shaped light guide members each having a configuration that confines light inside by total reflection and a light scattering/reflecting member inside are arranged in parallel to form a light guide and the aforementioned light guide. and a light source disposed opposite to the end face of the light guide member, the light introduced into the light guide member from the light source is scattered by the light scattering and reflecting member inside the light guide member, and the scattered light is The structure includes a backlight light source configured to emit light to the outside from the wall surface of the light guide member.
本発明は液晶表示装置に係り、特に液晶表示パネルに背
面から光を照射するバックライトの新規な構成に関する
。The present invention relates to a liquid crystal display device, and more particularly to a novel configuration of a backlight that irradiates light onto a liquid crystal display panel from the back side.
従来の液晶表示装置において、表示をカラー化するため
には、表示の最小単位である各ドツト（絵素）をＲ，Ｇ
、Ｂの３つの画素で構成し、この各画素にカラーフィル
タを組み合わせていた。In conventional liquid crystal display devices, in order to display in color, each dot (pixel), which is the smallest unit of display, is divided into R, G,
, B, and each pixel was combined with a color filter.
一方、表示画面を明るくし、且つ、コントラストを高め
るため、バックライト方式の液晶表示装置が実用化され
ている。このバックライト方式の一つとして、バンクラ
イト光源を導光板を使用して構成したものがある。即ち
、蛍光灯などの光を導光板の端面から導入し、内部に設
けた散乱反射手段で散乱させ、この散乱光を壁面より外
部に放出して、液晶表示パネルを裏側から照明するよう
にしたものである。On the other hand, backlight type liquid crystal display devices have been put into practical use in order to brighten the display screen and increase contrast. As one of these backlight systems, there is one in which a bank light light source is constructed using a light guide plate. That is, light from a fluorescent lamp or the like is introduced from the end face of the light guide plate, scattered by the scattering and reflecting means provided inside, and the scattered light is emitted to the outside from the wall surface to illuminate the liquid crystal display panel from the back side. It is something.
〔発明が解決しようとする課題〕
従来のカラー化手段であるカラーフィルタは、高価であ
るばかりでなく、Ｒ，Ｇ、Ｂのカラーフィルタの高さが
揃わないため、液晶の透過光量変化の闇値電圧がずれる
などの問題がある。[Problem to be solved by the invention] Color filters, which are conventional colorization means, are not only expensive, but also because the heights of the R, G, and B color filters are not the same, which makes it difficult to change the amount of light transmitted through the liquid crystal. There are problems such as value voltage deviation.
また、従来はカラー化の手段とバックライト手段は相互
に関係なく、別個に設けられていた。そのため、液晶表
示装置の構成が複雑化し、価格低減を妨げていた。Furthermore, conventionally, the coloring means and the backlighting means were provided separately and had no relation to each other. Therefore, the configuration of the liquid crystal display device has become complicated, which has hindered price reduction.
本発明は、液晶表示装置のカラー化手段とバックライト
光源とを一体化することを目的とする。An object of the present invention is to integrate a coloring means and a backlight source of a liquid crystal display device.
〔課題を解決するための手段］ 本発明の構成を第１図（ａ）〜（Ｃ）により説明する。[Means to solve the problem] The configuration of the present invention will be explained with reference to FIGS. 1(a) to (C).
本発明に係るバックライト光源は、第１図（ａ）の要部
断面図に見られる如く、導光体１０の端面に対向して蛍
光灯のような光源１１を配置した構成を有する。上記導
光体１０は、同図ら）に示す如く、光ファイバのような
光を全反射させて内部に閉じ込める導光部材１３を平行
に並べて構成したものであって、内部に光を散乱反射す
る光散乱反射部材１４が設けられている。また、導光体
１０の端面と光ｒ１．１１との間には、カラーフィルタ
１２や光開閉手段等を介在させることもできる。The backlight light source according to the present invention has a configuration in which a light source 11 such as a fluorescent lamp is disposed opposite the end surface of a light guide 10, as seen in the cross-sectional view of the main part in FIG. 1(a). The light guide 10, as shown in FIG. A light scattering and reflecting member 14 is provided. Further, a color filter 12, a light opening/closing means, or the like may be interposed between the end face of the light guide 10 and the light r1.11.
かかる構成としたことにより、光源１１から出た光１５
は、光散乱反射部材１４に当たって散乱し、この散乱光
１６は導光部材１３の壁面より外部に放射され、図示は
していないが、液晶パネルを背面より照明する。With this configuration, the light 15 emitted from the light source 11
is scattered upon hitting the light scattering/reflecting member 14, and this scattered light 16 is radiated to the outside from the wall surface of the light guide member 13, illuminating the liquid crystal panel from the back side, although not shown.
上記構成で、第１図（Ｃ）に示す如＜Ｒ，Ｇ、Ｂのカラ
ーフィルタ１２−１．１２−２．１２−３． ・・・
が設けられている場合には、各導光部材１３−１．１３
−２．１３−３゜・・・内に導入される光は、それぞれ
端面に没けられたカラーフィルタに対応してＲ，Ｇ、Ｂ
となり、液晶セルの表示電極を図示したようにストライ
ブ状の透明電極１８とし、これを各導光部材１３−１゜
１３−２．１３−３．・・・に対応して設けておけば、
各画素列はＲ，Ｇ、Ｂのいずれかの光によってのみ照明
されることとなり、液晶表示装置がカラー化される。With the above configuration, as shown in FIG. 1(C), <R, G, B color filters 12-1.12-2.12-3. ...
is provided, each light guide member 13-1.13
-2.13-3゜... The light introduced into the inside is R, G, and B, corresponding to the color filters sunk in the end faces.
As shown in the figure, the display electrode of the liquid crystal cell is made into a striped transparent electrode 18, and each of the light guide members 13-1, 13-2, 13-3. If you set it up in response to...
Each pixel column is illuminated only by R, G, or B light, and the liquid crystal display device is colored.
なお、１７は遮光手段であって、例えば金属膜をもって
構成することができ、導光部材１３から外部に放射され
る散乱光１６を反射するミラーの役割をなす。従って、
これを隣接する２つの導光部材１３間に配設すれば、隣
接する２つの導光部材１３間で光が混合するのを防止す
る。Incidentally, reference numeral 17 denotes a light shielding means, which can be made of, for example, a metal film, and serves as a mirror that reflects the scattered light 16 emitted from the light guide member 13 to the outside. Therefore,
If this is disposed between two adjacent light guide members 13, mixing of light between the two adjacent light guide members 13 can be prevented.
本発明では、入射光１５はまず全反射により光を内部に
閉じ込める棒状の導光部材１３の中を外に洩れることな
く進んでいく。そして光散乱反射体１４により散乱され
て、図に参照符号１６で示す如く、外部に出てくる。In the present invention, the incident light 15 first travels through the rod-shaped light guiding member 13 that confines the light inside by total reflection without leaking to the outside. The light is then scattered by the light scattering reflector 14 and comes out to the outside as shown by reference numeral 16 in the figure.
ところで、このような棒状の導光部材１３−１．１３−
２．１３−３． ・・・を平行に並べ、且つ、内部に
光散乱反射体１７を設けることにより、特定の導光部材
。By the way, such a rod-shaped light guide member 13-1.13-
2.13-3. ... are arranged in parallel and a light scattering reflector 17 is provided inside, thereby forming a specific light guide member.
例えば導光部材１３−１に光源１１から入った光１５は
、その導光部材１３−１の中のみを進み、導光部材１３
−１からのみ外部に出てくる。そして、各導光部材１３
１、１３−２．１３−３． ・・・の端面にカラーフ
ィルタ１２１、１２−２．１２−３． ・・・が配設
されているために、各導光部材はそれぞれ異なった色の
光を外部に出す。For example, light 15 entering the light guide member 13-1 from the light source 11 travels only within the light guide member 13-1, and the light 15 enters the light guide member 13-1.
It comes out only from -1. And each light guide member 13
1, 13-2.13-3. Color filters 121, 12-2, 12-3. ... are arranged, each light guide member emits light of a different color to the outside.
このことからカラーフィルをＲ，Ｇ、Ｂの順に繰り返し
配設することにより、ＲＯＢの棒状光源を繰り返し配置
したバックライト光源を実現することができる。Therefore, by repeatedly arranging color fills in the order of R, G, and B, it is possible to realize a backlight source in which ROB rod-shaped light sources are repeatedly arranged.
そして、この棒状光源に合わせて透明ストライプ状電極
１８を設けた液晶パネルを構成することにより、カラー
液晶デイスプレィが実現される。A color liquid crystal display is realized by configuring a liquid crystal panel in which transparent stripe-shaped electrodes 18 are provided in accordance with this rod-shaped light source.
以下本発明の第１の実施例を第２図（ａ）、 （ｂ）に
より説明する。A first embodiment of the present invention will be described below with reference to FIGS. 2(a) and 2(b).
第２図（ａ）、 （ｂ）は、本発明一実施例の要部断面
図および要部斜視図である。FIGS. 2(a) and 2(b) are a sectional view and a perspective view of a main part of an embodiment of the present invention.
本実施例は、遮光膜１７を間に介在させて複数個の棒状
の導光部材１３を並べて構成した導光体１０を、対向す
る一対の絶縁性基板の一方として使用した液晶表示装置
の例である。他方の絶縁性基板は通常の如くガラス基板
４１を使用した。This embodiment is an example of a liquid crystal display device in which a light guide 10, which is constructed by arranging a plurality of rod-shaped light guide members 13 with a light shielding film 17 interposed therebetween, is used as one of a pair of opposing insulating substrates. It is. As the other insulating substrate, a glass substrate 41 was used as usual.
上記導光体１０の端面にはカラーフィルタ１２を設け、
これに対向して蛍光灯のような光源１１を配置した。導
光部材１３は図示の如く、所定の屈折率を有するコア部
４９と、これより小さい屈折率を有するクラッド部４８
からなり、端面から導入された光を外部に洩れることな
く内部を伝播する如く構成され、更に内部に光散乱反射
板１４を設け、これにより伝播してきた光を散乱させる
よう構成されている。そして、この散乱光は図の上面よ
り外部に放射され、液晶［４５を背面から照明する。A color filter 12 is provided on the end face of the light guide 10,
A light source 11 such as a fluorescent lamp was placed opposite to this. As shown in the figure, the light guide member 13 includes a core portion 49 having a predetermined refractive index and a cladding portion 48 having a smaller refractive index.
It is constructed so that the light introduced from the end face propagates inside without leaking to the outside, and is further provided with a light scattering/reflecting plate 14 inside, so as to scatter the propagated light. This scattered light is then radiated to the outside from the top surface of the figure, illuminating the liquid crystal [45] from the back.
光源１１から出た光は、第２図（ｂ）に見られるように
、各導光部材１３の端面に、Ｒ，Ｇ、Ｂのカラーフィル
タ１２−１．１２−２．１２−３が配置されているので
、このフィルタに対応する光成分のみが各導光部材１３
内に導入される。そこで、ストライプ状の表示電極１８
を各導光部材１３上に対応付けて形成しておくことによ
り、各画素列はＲ，Ｇ、Ｂのいずれか一つの色の光で照
明され、その色を呈することとなる。従って、本実施例
によれば、従来各画素ごとに設けていたカラーフィルタ
を省略することができる。As shown in FIG. 2(b), the light emitted from the light source 11 is filtered through R, G, and B color filters 12-1.12-2.12-3 arranged on the end face of each light guide member 13. Therefore, only the light component corresponding to this filter is transmitted to each light guide member 13.
be introduced within. Therefore, the striped display electrode 18
By forming these on each light guide member 13 in association with each other, each pixel column is illuminated with light of one color of R, G, or B, and exhibits that color. Therefore, according to this embodiment, the color filter that was conventionally provided for each pixel can be omitted.
なお、各導光部材１３内部で散乱された光は、図の上面
だけでなく側面からも外部に放射され、隣接する導光部
材１３に向かうが、各導光部材１３間に設けられた遮光
膜１７で反射され、隣接導光部材１３にこの光が入りこ
むことはなく、色が混合するおそれはない。Note that the light scattered inside each light guide member 13 is radiated to the outside not only from the top surface of the figure but also from the side surface and heads toward the adjacent light guide member 13. This light is reflected by the film 17 and does not enter the adjacent light guide member 13, so there is no risk of color mixing.
なお、同図の４２は対向電極、４３．４６は配向膜、４
４はシール材である。In addition, 42 in the figure is a counter electrode, 43.46 is an alignment film, and 4
4 is a sealing material.
上記第１の実施例では、各導光部材１３の端部にカラー
フィルタを設けた例を説明したが、カラーフィルタを省
略し、これに変えて、導光部材１３自身の中に、特定の
波長の光を出射する蛍光材を含む構成としてもよく、或
いは、各導光部材１３を特定の色に着色しておく構成と
しても、カラー化することが可能である。In the first embodiment, a color filter is provided at the end of each light guide member 13. However, the color filter is omitted and instead, a specific color filter is provided in the light guide member 13 itself. It is also possible to use a configuration that includes a fluorescent material that emits light of the same wavelength, or to color each light guide member 13 in a specific color.
更に、第３図は本発明の第２の実施例を示す図で、前述
のカラーフィルタおよび光源に変えて、ＬＥＤ （発光
ダイオード）６０２を各導光部材１３の端面に対向して
配設した例である。Furthermore, FIG. 3 is a diagram showing a second embodiment of the present invention, in which an LED (light emitting diode) 602 is disposed facing the end surface of each light guide member 13 instead of the color filter and light source described above. This is an example.
本実施例は、複数個の導光部材１３の一つ一つに対し、
発光色が異なる光源を配設した例であって、前記第１図
の実施例と同様に液晶表示装置をカラー化できる。In this embodiment, for each of the plurality of light guide members 13,
This is an example in which light sources emitting light of different colors are provided, and the liquid crystal display device can be colored in the same manner as the embodiment shown in FIG.
以上説明した各側は、表示電極１８および導光部材１３
の双方を、ともに画素列対応に配設したものであり、こ
の両者の数は同一である。しかし、両者は目的によって
は必ずしも同数とする必要はない。Each side described above includes the display electrode 18 and the light guide member 13.
Both are arranged corresponding to the pixel columns, and the number of both is the same. However, depending on the purpose, it is not necessary that the number of both be the same.
第４図は本発明の第３の実施例を示す図で、本実施例で
は、透明導電膜からなる表示電極１８と導光部材１３と
の対応関係を、キャラクタ列ごとに一定とした例である
。FIG. 4 is a diagram showing a third embodiment of the present invention. In this embodiment, the correspondence between the display electrode 18 made of a transparent conductive film and the light guide member 13 is fixed for each character row. be.
表示電極１８を画素列ごとに設けることは当然であるが
、１個のキャラクタを表示するのに例えば縦横とも４８
ドツトを使用するとすると、キャラクタ列は４８画素列
で構成される。この場合、表示電極群を４８本単位でグ
ループに分け、これに対して所定数の導光部材１３を対
応させる。例えば、４本の表示電極１８に対して導光部
材１３を１本対応さ廿るとすれば、導光部材１３はキャ
ラクタ列ごとに１２本となる。この１２本の導光部材１
３を端から順にＲ２Ｏ，Ｂに対応付けておき、更に、こ
れら導光部材１３と表示電極１８との間に拡散板６１を
配設しておけば、導光部材Ｉ３から出た光は拡散板６１
内で混合し、この混合した光によって液晶層が照明され
る。It goes without saying that display electrodes 18 are provided for each pixel column, but in order to display one character, for example, 48
If dots are used, the character string consists of 48 pixel columns. In this case, the display electrode group is divided into groups of 48, and a predetermined number of light guide members 13 are associated with each group. For example, if one light guide member 13 is provided for each of the four display electrodes 18, there will be 12 light guide members 13 for each character row. These 12 light guide members 1
3 corresponds to R2O and B in order from the end, and furthermore, if a diffusion plate 61 is arranged between these light guide members 13 and display electrodes 18, the light emitted from the light guide member I3 is diffused. Board 61
The mixed light illuminates the liquid crystal layer.
このような構成としておき、Ｒ，Ｇ、Ｂのどの色を点灯
させるかにより、一つのキャラクタ列の色を制御するこ
とができ、その列の表示を強調するといったことが可能
である。With this configuration, the color of one character string can be controlled by lighting up which color of R, G, or B, and the display of that string can be emphasized.
なお、上記説明における列を行としてもよいことは特に
言うまでもない。Note that it goes without saying that the columns in the above description may be used as rows.
また、上記第３の実施例では、遮光膜１７を各導光部材
１３間に設ける必要はな（、各キャラクタ列の境界部に
のみ設ければよく、これでキャラクタ列間で色が混じる
ことはない。In addition, in the third embodiment, it is not necessary to provide the light shielding film 17 between each light guide member 13 (it is only necessary to provide it at the boundary between each character row, and this prevents colors from mixing between character rows). There isn't.
第５図は本発明の第４の実施例を示す図で、本実施例で
は、導光部材１３とカラーフィルタ１２との間に液晶シ
ャンク６３を配設した例である。FIG. 5 is a diagram showing a fourth embodiment of the present invention, and in this embodiment, a liquid crystal shank 63 is disposed between the light guide member 13 and the color filter 12.
かかる構成とすることにより、液晶シャッタ６３を開閉
してバックライトの色を所望の如く制御することが可能
である。例えば、カラーフィルタＲおよびＧ部分の液晶
シャッタを閉じ、Ｂのみを開けておくと、バックライト
の色を青色とすることができる。With this configuration, it is possible to control the color of the backlight as desired by opening and closing the liquid crystal shutter 63. For example, by closing the liquid crystal shutters of color filters R and G and leaving only B open, the color of the backlight can be set to blue.
また、液晶シャッタ６３の開は方を調整することによっ
て、バックライトの色を自由に変えることが可能であり
、これを利用して、例えば液晶パネルの光透過スペクト
ルが平坦でないような場合にも、バックライトの色を調
整して、表示色を補正すること等もできる。Furthermore, by adjusting the opening direction of the liquid crystal shutter 63, it is possible to freely change the color of the backlight.Using this, for example, when the light transmission spectrum of the liquid crystal panel is not flat, it is possible to change the color of the backlight freely. You can also adjust the color of the backlight to correct the displayed color.
上記各実施例はすべて何らかのカラー化手段を設けた例
を説明したが、本発明はモノクロームの表示装置にも使
用できる。Although all of the above embodiments have been described as examples in which some kind of coloring means is provided, the present invention can also be used in monochrome display devices.
即ち、導光体１０が複数個の導光部材１３から構成され
るので、導光部材１３と液晶シャッタ６３を組み合わせ
ることにより、即ち、上記第４の実施例においてカラー
フィルタを除いた構成とすることにより、各画素列の輝
度を制御することや、階調制御を行うことも可能である
。That is, since the light guide body 10 is composed of a plurality of light guide members 13, the light guide member 13 and the liquid crystal shutter 63 are combined, that is, the color filter is removed from the fourth embodiment. By doing so, it is also possible to control the brightness of each pixel column and perform gradation control.
以上説明した如く本発明によれば、バックライトとカラ
ー化手段を統合することができ、各画素ごとのカラーフ
ィルタを設ける必要がなく、明るいカラー表示が実現さ
れる。As described above, according to the present invention, the backlight and the colorizing means can be integrated, and there is no need to provide a color filter for each pixel, and a bright color display can be realized.
第１図（ａ）〜（Ｃ）は本発明の構成説明図、第２図（
ａ）、 （ｂ）は本発明の第１の実施例説明図、第３図
、第４図、第５図はそれぞれ本発明の第２、第３．第４
の実施例説明図である。
図において、１０は導光体、１１は光源、１２はカラー
フィルタ、１３は棒状の導光部材、１４は光散乱反射部
材（光散乱反射板）、１５は光源から出た光、１６は散
乱光、１７は遮光手段（遮光膜）、１８は表示電極、４
５は液晶層、４８はクラッド層、４９はコア層、６１は
拡散板、６２はＬＥＤ、６３は液晶シャフタを示す。
冷卓明の７４へ放明図
／￥発ｅ月す２（ｋ紐例叙ＯＨの
第３図
斗頃りＧ月−２３／１声でｊ金側ｔｌ−ｃｉ巧図第４図
＋ｂ）
；＋発明″７′４＾失眺例捜明ｍ
第５図Figures 1 (a) to (C) are explanatory diagrams of the configuration of the present invention, and Figure 2 (
a) and (b) are explanatory diagrams of the first embodiment of the present invention, and FIGS. 3, 4, and 5 are explanatory diagrams of the second and third embodiments of the present invention, respectively. Fourth
It is an explanatory diagram of an example. In the figure, 10 is a light guide, 11 is a light source, 12 is a color filter, 13 is a rod-shaped light guide member, 14 is a light scattering and reflecting member (light scattering and reflecting plate), 15 is light emitted from the light source, and 16 is scattering light, 17 is a light shielding means (light shielding film), 18 is a display electrode, 4
5 is a liquid crystal layer, 48 is a cladding layer, 49 is a core layer, 61 is a diffusion plate, 62 is an LED, and 63 is a liquid crystal shutter. Rei Zhuo Ming's 74 to Hōbakuzu / ￥ departure e month su 2 (k string example OH's 3rd picture Dokorori G month - 23/1 voice j gold side tl-ci skill figure 4 + b) ；+Invention''7'4^ Search for cases of lost view m Figure 5
Claims (8)
に光散乱反射部材（１４）とを合わせ具備する棒状の導
光部材（１３）を、複数本平行に配設した導光体（１０
）と、 前記導光部材（１３）の端面に対向配置した光源（１１
）とを具備し、 前記光源（１１）から前記導光部材（１３）内に導入さ
れた光（１５）が、前記導光部材内部において前記光散
乱反射部材（１４）により散乱し、該散乱光（１６）が
当該導光部材の壁面より外部に放射される如く構成した
バックライト光源を具備することを特徴とする液晶表示
装置。(1) A light guide (10
), and a light source (11) disposed opposite to the end surface of the light guide member (13).
), the light (15) introduced into the light guide member (13) from the light source (11) is scattered by the light scattering and reflective member (14) inside the light guide member, A liquid crystal display device comprising a backlight source configured such that light (16) is radiated to the outside from a wall surface of the light guiding member.
干渉することを防止するための遮光手段（１７）を、前
記導光部材間に配設したことを特徴とする請求項１記載
の液晶表示装置。(2) A light shielding means (17) for preventing the light emitted from the light guide member (13) from interfering with each other is disposed between the light guide members. The liquid crystal display device described.
間に、カラーフィルタ（１２）を設けたことを特徴とす
る請求項１記載の液晶表示装置。(3) The liquid crystal display device according to claim 1, characterized in that a color filter (12) is provided between the end face of the light guide member (13) and the light source (11).
ることを特徴とする請求項１記載の液晶表示装置。(4) The liquid crystal display device according to claim 1, wherein the light guide member (13) is colored in a desired color.
を有する蛍光材を含むことを特徴とする請求項１記載の
液晶表示装置。(5) The liquid crystal display device according to claim 1, wherein the light guiding member (13) contains a fluorescent material having a predetermined emission wavelength.
材（１３）からなる導光体（１０）が、液晶を挟持する
一対の基板の一方を兼ねることを特徴とする請求項１記
載の液晶表示装置。(6) The light guide (10) made up of a plurality of light guide members (13) arranged parallel to each other and adjacent to each other also serves as one of a pair of substrates sandwiching the liquid crystal. LCD display device.
１８）が、前記各導光部材（１３）に対応して配設され
ていることを特徴とする請求項１記載の液晶表示装置。(7) Striped transparent electrodes for driving the liquid crystal (
2. The liquid crystal display device according to claim 1, wherein a light guide member (18) is provided corresponding to each of the light guide members (13).
配置された光源（１１）との間に、光路開閉手段を介在
させたことを特徴とする請求項１記載の液晶表示装置。(8) A liquid crystal display according to claim 1, characterized in that an optical path opening/closing means is interposed between the end face of the light guiding member (13) and the light source (11) arranged opposite to the end face. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63265694A JP2770350B2 (en) | 1988-10-20 | 1988-10-20 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63265694A JP2770350B2 (en) | 1988-10-20 | 1988-10-20 | Liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02111922A true JPH02111922A (en) | 1990-04-24 |
| JP2770350B2 JP2770350B2 (en) | 1998-07-02 |
Family
ID=17420711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63265694A Expired - Lifetime JP2770350B2 (en) | 1988-10-20 | 1988-10-20 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2770350B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0530837U (en) * | 1991-08-20 | 1993-04-23 | スタンレー電気株式会社 | Display color display |
| JPH10269822A (en) * | 1998-04-15 | 1998-10-09 | Nichia Chem Ind Ltd | Planar light source |
| JP2000098371A (en) * | 1998-09-17 | 2000-04-07 | Omron Corp | Reflection type picture display element and substrate therefor |
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| US7071616B2 (en) | 1996-07-29 | 2006-07-04 | Nichia Kagaku Kogyo Kabushiki Kaisha | Light emitting device with blue light led and phosphor components |
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| WO2000060408A1 (en) * | 1999-03-31 | 2000-10-12 | Sharp Kabushiki Kaisha | Light-control device and method of driving |
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| JP2002270021A (en) * | 2001-03-13 | 2002-09-20 | Nec Corp | Display device |
| JP2005530196A (en) * | 2002-06-18 | 2005-10-06 | サムスン エレクトロニクス カンパニー リミテッド | Liquid crystal display device of time division color display system, driving method thereof and backlight device |
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|---|---|
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