JPH03184019A - lcd display device - Google Patents
lcd display deviceInfo
- Publication number
- JPH03184019A JPH03184019A JP1322485A JP32248589A JPH03184019A JP H03184019 A JPH03184019 A JP H03184019A JP 1322485 A JP1322485 A JP 1322485A JP 32248589 A JP32248589 A JP 32248589A JP H03184019 A JPH03184019 A JP H03184019A
- Authority
- JP
- Japan
- Prior art keywords
- lcd
- aperture ratio
- lenticular sheet
- aperture
- light
- 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
Landscapes
- Liquid Crystal (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、マトリックス状に構成された液晶セル群より
成るパネル型の液晶表示デバイス（以下、ＬＣＤと記す
〉に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a panel-type liquid crystal display device (hereinafter referred to as LCD) comprising a group of liquid crystal cells arranged in a matrix.
［従来の技術］
従来、マトリックス状に構成された液晶セル群より成る
パネル型のＬＣＤは、各液晶セルを駆動するＴＰＴ 、
補助容量、配線パターン等を各液晶セルの周辺に配置し
た構成からなっている。この様な構成が必要とされてい
るために、光の透過に右動な領域、いわゆる開口率は１
００％とはなりえず、通常は５０〜７０％程度となり、
従って、光の利用率もほぼ開口率に匹敵する値しか得ら
れないのが現状であった。[Prior Art] Conventionally, a panel type LCD consisting of a group of liquid crystal cells arranged in a matrix has a TPT,
It consists of a structure in which auxiliary capacitors, wiring patterns, etc. are arranged around each liquid crystal cell. Because such a configuration is required, the area where light transmission shifts to the right, the so-called aperture ratio, is 1.
It cannot be 00%, usually it is around 50-70%,
Therefore, the current situation is that the light utilization ratio can only be obtained at a value that is almost comparable to the aperture ratio.
［発明が解決しようとする課題］
特に、画素数が増し、超高密度化したＬＣＤの場合には
、現状では製造プロセスにおける限界等から、開口率が
益々低下し、それに伴って光の利用効率も著しく低下し
てしまうという欠点があった。[Problems to be solved by the invention] In particular, in the case of LCDs with increased pixel count and ultra-high density, the aperture ratio is currently decreasing due to limitations in the manufacturing process, and the light usage efficiency is decreasing accordingly. However, there was a drawback in that the value also decreased significantly.
本発明は、この様な従来技術の欠点を改善するためにな
されたものであり、光の利用効率を向上させたＬＣＤを
提供することを目的とするものである。The present invention has been made in order to improve the drawbacks of the prior art, and it is an object of the present invention to provide an LCD with improved light utilization efficiency.
［課題を解決するための手段］
即ち、本発明は、ＬＣＤの開口部の開口に異方性を持た
せると共に、開口部の線開口率の大きな方向とレンチキ
ュラーシートの柱状レンズの長手力向とが同方向となる
ようにレンチキュラーシートを組み合わせてなることを
特徴とする［、ＣＤである。[Means for Solving the Problems] That is, the present invention provides anisotropy in the aperture of the LCD, and also makes the direction of the aperture with a large linear aperture ratio and the longitudinal force direction of the columnar lenses of the lenticular sheet. This CD is characterized by being formed by combining lenticular sheets such that the lenticular sheets are in the same direction.
［作用］
本発明のＬＣＤは、ＬＣＤの開口部の縦方向の線開口率
と横方向の線開口率が異なるようにして開口に異方性を
持たせ、かつ縦方向又は横方向のいずれかの線開口率の
大きな方向とレンチキュラーシートの柱状レンズの長手
方向とが同方向となるように、該レンチキュラーシート
なＬＣＤに組み合わせることにより、レンチキュラーシ
ートの柱状レンズの集光効果により、照射された光を開
口部に集束させることができ、開口率（面積率）は従来
のＬＣＤと同じであっても、著しく光の利用効率を向上
することが可能となる。[Function] The LCD of the present invention has anisotropy in the opening by making the vertical linear aperture ratio and the horizontal linear aperture ratio of the opening of the LCD different, and By combining the lenticular sheet with an LCD so that the direction of the large linear aperture ratio and the longitudinal direction of the columnar lenses of the lenticular sheet are in the same direction, the irradiated light is can be focused on the aperture, and even if the aperture ratio (area ratio) is the same as that of a conventional LCD, it is possible to significantly improve the light utilization efficiency.
［実施例］
以下、図面に示す実施例に基づいて、本発明をさらに具
体的に説明する。[Example] Hereinafter, the present invention will be described in more detail based on the example shown in the drawings.
実施例１
第１図は本発明のＬＣＤの一実施例を示す平面概略構成
図、第２図はＡＡ線断面図である。同図において、１は
ＬＣＤ、２は開口部、３は非開口部を示す。Embodiment 1 FIG. 1 is a schematic plan view showing an embodiment of the LCD of the present invention, and FIG. 2 is a sectional view taken along the line AA. In the figure, 1 indicates an LCD, 2 indicates an opening, and 3 indicates a non-opening section.
各液晶セルの横方向のピッチはａであり、縦方向のピッ
チはＣとなっている。又開口部の横幅はｂ、縦幅はｄで
ある。従って、このＬＣＤにおける開口率（面積率）は
ｂ−ｄ／ａ−ｃとなり、この例では約５０％になってい
る。The horizontal pitch of each liquid crystal cell is a, and the vertical pitch is C. The width of the opening is b and the width of the opening is d. Therefore, the aperture ratio (area ratio) in this LCD is bd/ac, which is about 50% in this example.
ここで、ｂ／ａを開口部の横方向の線開口率、ｄ／ｃを
開口部の縦方向の線開口率と定義すれば、このＬＣＤは
縦方向の線開口率（ｄ／ｃ） ＞横方向の線開口率（ｂ
／ａ）となり、かつ縦方向の線開口率（ｄ／ｃ）がなる
べく大きくなるように設計されている。この開口部の例
では、ｄ／ｃ〜９０％、ｂ／ａ〜６０％、つまり異方的
な開口になっている。Here, if b/a is defined as the linear aperture ratio in the horizontal direction of the aperture and d/c is the linear aperture ratio in the vertical direction of the aperture, then this LCD has a linear aperture ratio in the vertical direction (d/c)> Horizontal linear aperture ratio (b
/a), and the vertical line aperture ratio (d/c) is designed to be as large as possible. In this example, the opening is d/c ~90% and b/a ~60%, that is, it is an anisotropic opening.
第２図は、このＬＣＤの断面図であり、同図において、
４，５はガラス基板、６は液晶層、７は非開口部に相当
するブラックマスク、８はＴＦ丁である。 １０はレン
チキュラーシートであり、その柱状レンズの長手力向か
縦方向になるように、すなわち開口部の縦方向の大きな
線開口率（ｄ／ｃ）の方向と同方向に、つまり横方向に
レンズ効果を発揮する方向で、ガラス基板５の表面上に
貼付されている。また、このレンチキュラーシートのピ
ッチは各液晶セルの横方向のピッチａと同じになってお
り、さらに柱状レンズの中心位置がＬＣＤの開口部の中
心位置に一致するようにレジ合わせされている。FIG. 2 is a cross-sectional view of this LCD, and in the same figure,
4 and 5 are glass substrates, 6 is a liquid crystal layer, 7 is a black mask corresponding to a non-opening portion, and 8 is a TF plate. 10 is a lenticular sheet, and the lens is attached in the longitudinal direction of the columnar lens, that is, in the same direction as the direction of the large linear aperture ratio (d/c) in the vertical direction of the aperture, that is, in the horizontal direction. It is pasted on the surface of the glass substrate 5 in the direction in which it exhibits its effect. Further, the pitch of this lenticular sheet is the same as the lateral pitch a of each liquid crystal cell, and furthermore, the center position of the columnar lens is registered so as to coincide with the center position of the opening of the LCD.
従って、第２図の如＜、ＬＣＤにテレセントリックな照
明光９が照射されると、該照明光はレンチキュラーシー
トｌＯの各柱状レンズの集光効果により、全てＬＣＤの
各開口部に集束する。このため、このＬＣＤにおいては
少なくとも横方向の線開口率に左右されることなく、照
明光がＬＣＤの表示に利用されることになる。但し、縦
方向については、このような集光は起こらないため、結
局全体的な光の利用効率は縦方向の線開口率（ｄ／Ｃ）
にのみ匹敵する値になる。Therefore, as shown in FIG. 2, when the LCD is irradiated with telecentric illumination light 9, the illumination light is all focused on each opening of the LCD due to the condensing effect of each columnar lens of the lenticular sheet 10. Therefore, in this LCD, illumination light is used for display on the LCD without being influenced by the linear aperture ratio at least in the horizontal direction. However, since such light concentration does not occur in the vertical direction, the overall light utilization efficiency is determined by the linear aperture ratio (d/C) in the vertical direction.
The value is comparable only to
このＬＣＤにおいては、前述したように開口率（面積率
）ｂ−ｄ／ａ−Ｃは５０％であるにもかかわらず、縦方
向の線開口率ｄ／ｃは９０％であるため、光の利用効率
は９０％に近い非常に大きな値が得られる。In this LCD, as mentioned above, although the aperture ratio (area ratio) b-d/a-c is 50%, the vertical linear aperture ratio d/c is 90%, so the light A very large value of utilization efficiency close to 90% can be obtained.
実施例２゛
第３図は本発明のＬＣＤの他の実施例を表わす部分断面
図である。同図において、１０．１１はレンチキュラー
シートであり、実施例１と同じ開ロバターンのＬＩＣＤ
の両面のガラス基板上に、それぞれ対称的に貼付されて
いる。レンチキュラーシート′１０のピッチ及び貼付位
置・方法は実施例１と全く同様である。但し、各柱状レ
ンズの集点距離はレンチキュラーシート１０と１１との
間隔（ＬＣＤ本体の厚さ）の１／２に設定されている。Embodiment 2 FIG. 3 is a partial sectional view showing another embodiment of the LCD of the present invention. In the figure, 10.11 is a lenticular sheet, and the LICD has the same open pattern as in Example 1.
are attached symmetrically to glass substrates on both sides. The pitch and attachment position/method of the lenticular sheet '10 are exactly the same as in the first embodiment. However, the focal distance of each columnar lens is set to 1/2 of the distance between the lenticular sheets 10 and 11 (thickness of the LCD main body).
レンチキュラーシート１１はレンチキュラーシート１０
と全く同じ仕様のものであり、図の如く、完全な面対称
配置となっている。このようなＬＩＣＤに対して、テレ
セントリックな照明光９か入射した場合、実施例１と同
様にレンチキュラーシート１０を経ることにより各光束
は開口部の中心の液晶層に集光し、クロスした後、液晶
層６を経てレンチキュラーシート１１に達する。このレ
ンチキュラーシート１１によりクロス後、拡散してくる
光束は再び集光され１元のテレセントリックな状態に戻
って出射する。The lenticular sheet 11 is the lenticular sheet 10
It has exactly the same specifications as the one shown in the figure, and has a completely symmetrical arrangement as shown in the figure. When telecentric illumination light 9 is incident on such an LICD, each light beam passes through the lenticular sheet 10 as in Example 1, converges on the liquid crystal layer at the center of the opening, and after crossing, It reaches the lenticular sheet 11 via the liquid crystal layer 6. After crossing by this lenticular sheet 11, the diffused light beam is condensed again, returns to the original telecentric state, and is emitted.
ここでの光利用率も実施例１と全く同様に、面積開口率
によらず、縦方向の線開口率によるため、高い光利用率
が得られる。The light utilization rate here is not based on the area aperture ratio but on the vertical line aperture ratio, just as in Example 1, so that a high light utilization efficiency can be obtained.
尚、ＬＣＤの応用形態は各種様々であるが１本実施例は
、テレセントリックな出射光が望ましいような応用形態
（例えば、プロジェクタ−等）に適している。Although there are various applications for LCDs, this embodiment is suitable for applications where telecentric emitted light is desirable (for example, a projector, etc.).
また１本発明は上記の実施例に限定される訳ではなく、
以下のように変形することも可能である。Furthermore, the present invention is not limited to the above embodiments,
It is also possible to modify it as follows.
（１）横方向の線開口率を大きく設定し、レンチキュラ
ーシートの柱状レンズの方向も横方向にする。(1) The linear aperture ratio in the lateral direction is set large, and the direction of the columnar lenses of the lenticular sheet is also oriented in the lateral direction.
（２）第４図に示すように、出射側のレンチキュラーシ
ートとして、凹状レンチ構造のものを用いて、出射光を
テレセン化するか、または出射光を広げる。(2) As shown in FIG. 4, a concave lenticular structure is used as the lenticular sheet on the output side to telecenter or spread the output light.
（３）第５図に示すように、反射型ＬＣＤに応用する。(3) Application to reflective LCD as shown in FIG.
この場合、柱状レンズによる集点が反射ミラー面１３に
一致するように設定すれば、照明光による人出射光を共
にテレセン化できる。In this case, if the focal point of the columnar lens is set to coincide with the reflection mirror surface 13, the light emitted from the person by the illumination light can be telecentered.
［発明の効果］
以上説明したように、本発明によれば、ＬＣＤの開口部
の開口に異方性を持たせ、開口部の線開口率の大きな方
向とレンチキュラーシートの柱状レンズの長平方向とが
同方向となるようにレンチキュラーシートを該ＬＣＤに
組み合わせることにより、著しくその光利用効率を向上
させる効果が得られる。[Effects of the Invention] As explained above, according to the present invention, the aperture of the LCD has anisotropy, and the direction in which the linear aperture ratio of the aperture is large and the longitudinal direction of the columnar lens of the lenticular sheet are By combining a lenticular sheet with the LCD so that the rays are in the same direction, the effect of significantly improving the light utilization efficiency can be obtained.
第１図は本発明のＬＣＤの一実施例を示す平面概略構成
図、第２図はＡＡ線断面図、第３図〜第５図は各々本発
明のＬＣＤの他の実施例を表わす部分断面図である。
ｌ・・・ＬＣＤ
２・・・開口部
３・・・非開口部
４．５・・・ガラス基板
６・・・液晶層
７・・・ブラックマスク
８・−ＴＰＴ
９・・・照明光
１０、１１−・・レンチキュラーシート１２・・・凹状
レンチキュラーシート
１３−・・反射ミラー面FIG. 1 is a schematic plan view showing one embodiment of the LCD of the present invention, FIG. 2 is a cross-sectional view taken along line AA, and FIGS. 3 to 5 are partial cross-sections showing other embodiments of the LCD of the present invention. It is a diagram. l...LCD 2...Aperture 3...Non-aperture 4.5...Glass substrate 6...Liquid crystal layer 7...Black mask 8...-TPT 9...Illumination light 10, 11-... Lenticular sheet 12... Concave lenticular sheet 13-... Reflective mirror surface
Claims (1)
共に、開口部の線開口率の大きな方向とレンチキュラー
シートの柱状レンズの長手方向とが同方向となるように
レンチキュラーシートを組み合わせてなることを特徴と
する液晶表示デバイス。A combination of lenticular sheets in which the aperture of the liquid crystal display device has anisotropy and the direction of the large linear aperture ratio of the aperture is in the same direction as the longitudinal direction of the columnar lenses of the lenticular sheet. A liquid crystal display device featuring:
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1322485A JP2888358B2 (en) | 1989-12-14 | 1989-12-14 | Liquid crystal display device |
| US07/625,973 US5101279A (en) | 1989-12-14 | 1990-12-11 | Liquid crystal display apparatus having lenticular elements oriented in relation to LC pixel aperture dimensions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1322485A JP2888358B2 (en) | 1989-12-14 | 1989-12-14 | Liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03184019A true JPH03184019A (en) | 1991-08-12 |
| JP2888358B2 JP2888358B2 (en) | 1999-05-10 |
Family
ID=18144162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1322485A Expired - Fee Related JP2888358B2 (en) | 1989-12-14 | 1989-12-14 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2888358B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07191312A (en) * | 1993-11-10 | 1995-07-28 | Minnesota Mining & Mfg Co <3M> | Liquid crystal projection panel having microlens arrangement |
| KR20040025154A (en) * | 2002-09-18 | 2004-03-24 | 김재창 | Light-guide pattern with high optical efficiency to use transflective LCD display |
| JP2004513380A (en) * | 1998-02-17 | 2004-04-30 | サーノフ コーポレイション | Improvement of contrast of electronic display device |
| KR100436818B1 (en) * | 2000-11-22 | 2004-06-23 | 세이코 엡슨 가부시키가이샤 | Electro-optical apparatus and electronic device |
| WO2005083503A1 (en) * | 2004-02-27 | 2005-09-09 | Sharp Kabushiki Kaisha | Display apparatus and electronic device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60262131A (en) * | 1984-06-08 | 1985-12-25 | Sharp Corp | Liquid-crystal display device |
-
1989
- 1989-12-14 JP JP1322485A patent/JP2888358B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60262131A (en) * | 1984-06-08 | 1985-12-25 | Sharp Corp | Liquid-crystal display device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07191312A (en) * | 1993-11-10 | 1995-07-28 | Minnesota Mining & Mfg Co <3M> | Liquid crystal projection panel having microlens arrangement |
| JP2004513380A (en) * | 1998-02-17 | 2004-04-30 | サーノフ コーポレイション | Improvement of contrast of electronic display device |
| KR100436818B1 (en) * | 2000-11-22 | 2004-06-23 | 세이코 엡슨 가부시키가이샤 | Electro-optical apparatus and electronic device |
| KR20040025154A (en) * | 2002-09-18 | 2004-03-24 | 김재창 | Light-guide pattern with high optical efficiency to use transflective LCD display |
| WO2005083503A1 (en) * | 2004-02-27 | 2005-09-09 | Sharp Kabushiki Kaisha | Display apparatus and electronic device |
| US7715102B2 (en) | 2004-02-27 | 2010-05-11 | Sharp Kabushiki Kaisha | Display apparatus and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2888358B2 (en) | 1999-05-10 |
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Legal Events
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |