JPH06230356A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPH06230356A JPH06230356A JP1405893A JP1405893A JPH06230356A JP H06230356 A JPH06230356 A JP H06230356A JP 1405893 A JP1405893 A JP 1405893A JP 1405893 A JP1405893 A JP 1405893A JP H06230356 A JPH06230356 A JP H06230356A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- diffusion film
- display device
- crystal layer
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は液晶表示装置に関する。
さらに詳しくは、像のぼけを防ぎ解像度を向上させた液
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 device.
More specifically, the present invention relates to a liquid crystal display device that prevents image blurring and improves resolution.
【０００２】[0002]
【従来の技術】従来より用いられる液晶表示装置のパネ
ル部は、図４に示されるように、透明導電膜からなる電
極を有する２枚の透明基板11ａ、11ｂのあいだに液晶材
料が封入されて液晶層12が設けられ、かつ２枚の透明基
板11ａ、11ｂの外側にそれぞれ偏光板13ａ、13ｂが設け
られ、さらに偏光板13ａの前面側には拡散フィルム14が
設けられて構成されている。このパネル部を使用した液
晶表示装置は、駆動回路により両透明基板の電極に電圧
が印加されることにより、液晶分子の配向方向が変化
し、後方に配置された光源の光を透過したり遮断して、
文字または図形などの表示を行っている。液晶表示装置
を透過する光は、最終的に拡散フィルム14により、あら
ゆる角度に分散され、視角特性（パネル表面からの見る
角度によるコントラスト比など）が平均化される。2. Description of the Related Art As shown in FIG. 4, a panel portion of a conventionally used liquid crystal display device has a liquid crystal material enclosed between two transparent substrates 11a and 11b having electrodes made of a transparent conductive film. A liquid crystal layer 12 is provided, polarizing plates 13a and 13b are provided outside the two transparent substrates 11a and 11b, respectively, and a diffusion film 14 is provided on the front side of the polarizing plate 13a. A liquid crystal display device using this panel section changes the alignment direction of liquid crystal molecules when a voltage is applied to the electrodes of both transparent substrates by a drive circuit, and transmits or blocks the light of a light source arranged behind. do it,
Characters or figures are displayed. The light transmitted through the liquid crystal display device is finally dispersed by the diffusion film 14 at all angles, and the viewing angle characteristics (contrast ratio depending on the viewing angle from the panel surface) are averaged.
【０００３】この液晶表示装置は低電力消費で、高寿命
であるため、駅や飛行場などでの行先表示や街頭での案
内板など、大型の表示ボードへの使用について検討され
ている。Since this liquid crystal display device consumes low power and has a long life, its use for a large display board such as a destination display at a station or an airfield or a guide board on the street is being studied.
【０００４】[0004]
【発明が解決しようとする課題】前述の構造の液晶表示
装置では、拡散フィルム14に、光を乱反射させ、拡散効
果をもたせているため、たとえば図４においてＰ方向か
ら表示パネルを見るばあい、Ａ方向からの光のみでな
く、Ｂ方向など他の方向からの光も目に入り、輝度の均
一化が図られている。しかし、一画素をＡ方向から透過
した光はＰ方向から見たばあい、ｍの範囲で視覚される
が、Ｂ方向からの光はｎの範囲で視覚され、一画素を透
過した光は光の進入方向によってｑの範囲のズレが生じ
る。そのため、像がぼけて解像度が低下するという問題
がある。In the liquid crystal display device having the above-described structure, since the diffusion film 14 diffuses light to have a diffusion effect, for example, when the display panel is viewed from the P direction in FIG. Not only the light from the A direction but also the light from other directions such as the B direction enter the eye, and the brightness is made uniform. However, when light passing through one pixel from the A direction is viewed in the P direction, it is visible in the range of m, but light from the B direction is viewed in the range of n, and light passing through one pixel is the light. A deviation in the range of q occurs depending on the approach direction of. Therefore, there is a problem that the image is blurred and the resolution is lowered.
【０００５】とくに駅などの表示ボードなどに用いられ
るばあい、下方から見上げることが多く、表示画面の法
線方向とのなす角度（以下、視角という）が大きい方向
から見ることになり、像のぼけが顕著となる。In particular, when it is used for a display board of a station or the like, it is often looked up from below, and the angle formed with the normal line direction of the display screen (hereinafter, referred to as a viewing angle) is viewed from a large direction. Blurring becomes noticeable.
【０００６】本発明は、叙上の問題を解消するためにな
されたものであり、拡散フィルムによる視角特性の拡大
を図るとともに、解像度の低下を防止できる液晶表示装
置を提供することを目的とする。The present invention has been made in order to solve the above problem, and an object of the present invention is to provide a liquid crystal display device capable of enlarging the viewing angle characteristics by the diffusion film and preventing the deterioration of the resolution. .
【０００７】[0007]
【課題を解決するための手段】本発明の液晶表示装置
は、２枚の透明基板のあいだに液晶層が挟持され、該両
透明基板の両外面側に偏光板が設けられ、表示面である
前面側の前記偏光板上にさらに拡散フィルムが設けられ
てなる液晶表示装置であって、前記前面側の透明基板が
0.1 〜0.3 mmの厚さに形成されていることを特徴とする
ものである。In the liquid crystal display device of the present invention, a liquid crystal layer is sandwiched between two transparent substrates, and polarizing plates are provided on both outer surface sides of the both transparent substrates to form a display surface. A liquid crystal display device further comprising a diffusion film provided on the polarizing plate on the front side, wherein the transparent substrate on the front side is
It is characterized in that it is formed to a thickness of 0.1 to 0.3 mm.
【０００８】[0008]
【作用】本発明の液晶表示装置では、液晶表示パネルの
前面側の透明基板が0.1 〜0.3mmの厚さに形成されてい
るため、液晶層から拡散フィルムまでの距離が短縮され
る。すなわち、たとえば視角60°の方向から見たばあ
い、後述するように、像のぼけは透明基板の厚さの２倍
となるため、一画素分の液晶層を透過して直進し視覚さ
れる光の像と別の方向から同画素分の液晶層を透過して
拡散フィルムにより拡散されて視覚される光の像とのず
れは、透明基板の厚さが0.1 〜0.3mm と薄くなることに
より、小さくなり、かつ、大型液晶表示装置に用いられ
る液晶表示パネルの画素の間隔（たとえば 0.5mm程度）
と同程度以下になり、解像度が向上する。In the liquid crystal display device of the present invention, since the transparent substrate on the front side of the liquid crystal display panel is formed to have a thickness of 0.1 to 0.3 mm, the distance from the liquid crystal layer to the diffusion film is shortened. That is, for example, when viewed from the direction of a visual angle of 60 °, the image blur is twice the thickness of the transparent substrate, as will be described later, so that the image passes through the liquid crystal layer for one pixel and goes straight to be viewed. The difference between the image of light and the image of light that is viewed by being transmitted through the liquid crystal layer for the same pixels from a different direction and being diffused by the diffusion film is due to the thinness of the transparent substrate being 0.1 to 0.3 mm. , The pixel spacing of the liquid crystal display panel used for large-sized liquid crystal display devices (for example, about 0.5 mm)
And the resolution is improved.
【０００９】[0009]
【実施例】つぎに図面を参照しながら、本発明の液晶表
示装置の説明を行う。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the liquid crystal display device of the present invention will be described with reference to the drawings.
【００１０】図１は、本発明の液晶表示装置の一実施例
を示す液晶表示装置のパネル部分を示す断面説明図、図
２は図１の液晶表示装置の要部拡大断面図である。FIG. 1 is a sectional explanatory view showing a panel portion of a liquid crystal display device showing an embodiment of the liquid crystal display device of the present invention, and FIG. 2 is an enlarged sectional view of a main part of the liquid crystal display device of FIG.
【００１１】図１に示されるように本発明の液晶表示装
置のパネル部分１は、透明電極膜を有する２枚の透明基
板２ａ、２ｂのあいだに液晶材料が封入されて液晶層３
が挟持され、その前面（表示面側）および背面にはそれ
ぞれ偏光板４ａ、４ｂが設けられ、偏光板４ａの前方に
はさらに拡散フィルム５が設けられて構成されている。
透明基板２ａ、２ｂとしては、たとえばガラス基板やポ
リエステルフィルムなどが採用される。さらに、拡散フ
ィルム５は、ポリエステル樹脂、ポリ塩化ビニル樹脂ま
たはアクリル樹脂などからなり、白い顔料などを混入し
たり、表面を粗面にした透明の樹脂からなっている。こ
の構成で、図示されていない駆動回路により両電極間に
電圧が印加されることにより、各画素ごとに点灯する。As shown in FIG. 1, in the panel portion 1 of the liquid crystal display device of the present invention, a liquid crystal material is enclosed between two transparent substrates 2a and 2b having a transparent electrode film, and a liquid crystal layer 3 is formed.
Are sandwiched, and polarizing plates 4a and 4b are respectively provided on the front surface (display surface side) and the back surface thereof, and a diffusion film 5 is further provided in front of the polarizing plate 4a.
As the transparent substrates 2a and 2b, for example, glass substrates or polyester films are adopted. Further, the diffusion film 5 is made of a polyester resin, a polyvinyl chloride resin, an acrylic resin, or the like, and is mixed with a white pigment or the like, or a transparent resin having a roughened surface. With this configuration, a driving circuit (not shown) applies a voltage between both electrodes to turn on each pixel.
【００１２】本実施例では、前面側の前記透明基板２ａ
が、通常より薄く、0.1 〜0.3 mmの厚さに形成されてい
ることに特徴がある。In this embodiment, the transparent substrate 2a on the front side is used.
However, it is characterized by being formed thinner than usual and having a thickness of 0.1 to 0.3 mm.
【００１３】すなわち、本発明者は鋭意検討した結果、
従来は前面側の透明基板２ａも背面側の透明基板２ｂと
同じ厚さの 0.7〜 1.1mm程度のものが使用されていた
が、本発明では前面側の透明基板２ａの厚さを 0.1〜
0.3mmにすることにより、像のぼけを防ぎ解像度が向上
すると共に、歩留も低下しないことを見出したものであ
る。That is, as a result of the earnest study by the present inventor,
Conventionally, the front transparent substrate 2a has the same thickness as the rear transparent substrate 2b of about 0.7 to 1.1 mm, but in the present invention, the front transparent substrate 2a has a thickness of 0.1 to 1.1 mm.
It has been found that by setting the thickness to 0.3 mm, the image blur is prevented, the resolution is improved, and the yield is not reduced.
【００１４】前面側の透明基板２ａを薄くすることによ
り、像のぼけが少なくなる理由を図２を参照しながら説
明する。表示画面を見る方向の延長上のＡ方向から液晶
層３を透過し、拡散フィルム５を直進してくる光Ｔと、
別のＢ方向から液晶層３を透過して拡散フィルム５で拡
散して見る方向にくる光Ｒ1 との間隔ｔ1 は光Ｂの入射
角をθとし、前面側の透明基板２ａの厚さをｈ1 とする
とThe reason why the image blur is reduced by thinning the transparent substrate 2a on the front side will be described with reference to FIG. The light T that passes through the liquid crystal layer 3 from the direction A, which is an extension of the viewing direction of the display screen, and goes straight through the diffusion film 5,
The distance t 1 with the light R 1 which is transmitted from the other B direction through the liquid crystal layer 3 and is diffused by the diffusion film 5 in the viewing direction is the incident angle of the light B being θ, and the thickness of the transparent substrate 2a on the front side. Be h 1
【００１５】[0015]
【数１】 [Equation 1]
【００１６】となる。一方、前面側の透明基板２ａの厚
さを従来の厚さｈ2 とするとズレの間隔ｔ2 は[0016] On the other hand, the interval t 2 of the deviation when the thickness of the front side of the transparent substrate 2a and conventional thickness h 2 is
【００１７】[0017]
【数２】 [Equation 2]
【００１８】となる。[0018]
【００１９】したがって、表示パネルの垂直方向から見
れば像のぼけは生じないが、たとえば駅などの表示ボー
ドを下方から見上げるようなばあいは視角が大きくな
り、θが大きくなる。そのため視角が60°の方向から見
ると、像のズレの間隔は透明基板２ａの厚さの２倍とな
る。一方、駅などの大型表示ボードに用いられる液晶表
示装置では、液晶表示モジュールが多数個並べられて形
成され、表示画面の大型化に伴い、各液晶表示モジュー
ルはたとえば図３に表示パネルの画素部分の平面図を示
すように、たとえば約2.9mm 角の画素７が約0.5mm の間
隔で24×24個形成されている。この画素間隔８は本来狭
い程表示特性が良く好ましいが、各画素駆動用の薄膜ト
ランジスタの配線などのため、前述のような0.5mm 程度
の間隔で設けられている。前述の像のぼけがこの間隔以
下であれば画像の視認特性にそれ程影響を及ぼさない
が、この間隔以上にぼけると像がオーバラップして視認
特性が低下する。θ＝60°を式（１）に代入し、ｔ1 ＝
0.5mm とすると透明基板２ａの厚さｈ1 は0.25mmとなる
が、θ＝60°は極端のばあいであり、視角が小さければ
ｔ1 は小さくなるため、透明基板２ａの厚さは0.3mm 以
下であれば良い。Therefore, the image is not blurred when viewed from the vertical direction of the display panel, but when the display board such as a station is looked up from below, the viewing angle becomes large and θ becomes large. Therefore, when viewed from the direction of a visual angle of 60 °, the gap between image shifts is twice the thickness of the transparent substrate 2a. On the other hand, in a liquid crystal display device used for a large display board at a station or the like, a large number of liquid crystal display modules are arranged and formed, and as the display screen becomes larger, each liquid crystal display module is shown in FIG. As shown in the plan view of FIG. 3, 24 × 24 pixels 7 of about 2.9 mm square are formed at intervals of about 0.5 mm. The narrower the pixel interval 8 is, the better the display characteristic is, which is preferable. However, the pixel interval 8 is provided at an interval of about 0.5 mm as described above because of the wiring of the thin film transistor for driving each pixel. If the above-described image blur is less than or equal to this interval, the visual recognition characteristics of the image are not so affected, but if the blur is greater than this interval, the images overlap and the visual recognition characteristics are degraded. Substituting θ = 60 ° into equation (1), t 1 =
If the thickness h is 0.5 mm, the thickness h 1 of the transparent substrate 2a is 0.25 mm, but θ = 60 ° is an extreme case, and the smaller the viewing angle is, the smaller t 1 is, so the thickness of the transparent substrate 2a is 0.3. It should be less than mm.
【００２０】像のずれの点からは透明基板２ａは薄い程
好ましいが、透明基板２ａは液晶材料を挟持しなければ
ならないため、透明基板のそりまたは製造上の透明基板
の破損などを考慮すると、 0.1mm程度が限度になる。こ
の厚さを確保すれば歩留りの低下を防ぐことができる。
そのため、 0.1〜 0.3mm程度の厚さにすることが好まし
い。From the viewpoint of image shift, the thinner the transparent substrate 2a is, the more preferable it is. However, since the transparent substrate 2a has to sandwich the liquid crystal material, in consideration of the warpage of the transparent substrate or the breakage of the transparent substrate during manufacture, The limit is about 0.1 mm. If this thickness is secured, it is possible to prevent a decrease in yield.
Therefore, it is preferable to set the thickness to about 0.1 to 0.3 mm.
【００２１】前述の構造で透明基板２ａの厚さが0.1mm
、0.2mm 、0.3mm 、0.35mm、0.4mmの５種類を作成し
て、50cm頭上の表示ボードを50cm前方から観察した結
果、0.3mm 以下のばあいは非常に良好に視認でき、0.35
mmのばあいはやや視認特性が低下し、0.4mm のばあいは
見づらくなった。その結果を表１にまとめる。表１にお
いて、「視認性が非常に良好」が○印、「やや視認性が
低下する」が△印、「見づらくなる」が×印で示されて
いる。With the above structure, the transparent substrate 2a has a thickness of 0.1 mm.
, 5 mm of 0.2 mm, 0.3 mm, 0.35 mm, and 0.4 mm were created, and as a result of observing the display board 50 cm overhead from the front of 50 cm, when it is 0.3 mm or less, it can be seen very well.
In the case of mm, the visual characteristics deteriorated a little, and in the case of 0.4 mm, it became difficult to see. The results are summarized in Table 1. In Table 1, “Very good visibility” is indicated by a circle, “Slightly reduced visibility” is indicated by a Δ, and “It is difficult to see” is indicated by a cross.
【００２２】[0022]
【表１】 [Table 1]
【００２３】つぎに、本発明の液晶表示装置の表示パネ
ル部の製法について説明する。Next, a method of manufacturing the display panel portion of the liquid crystal display device of the present invention will be described.
【００２４】まず、通常の表示パネル部の製法と同様に
たとえば大きなガラス板に複数個のパネル分の電極膜、
配向膜などを設け、シール剤を塗布すると共にスペーサ
を介在させ、同様に電極膜や配向膜などが設けられた他
方のガラス板を圧接して接着する。そののち大きなガラ
ス板から各パネルの大きさに切断し両基板の間隔に液晶
材料を注入し、注入口を封止する。First, in the same manner as in the usual display panel manufacturing method, for example, a large glass plate is used to form electrode films for a plurality of panels.
An alignment film or the like is provided, a sealant is applied, a spacer is interposed, and the other glass plate similarly provided with the electrode film, the alignment film, and the like is pressed and bonded. After that, a large glass plate is cut into the size of each panel, a liquid crystal material is injected into the space between both substrates, and the injection port is sealed.
【００２５】ついで前面側のガラス基板２ａの表面をア
ルミナ粉末をまいた研磨剤の上で研磨する。この研磨に
より 0.7〜 1.1mmのガラス基板２ａを 0.1〜 0.3mmの厚
さになるように研磨する。このガラス基板２ａの厚さ
は、前述の像のずれの点からは薄い程よい。Next, the surface of the glass substrate 2a on the front side is polished with an abrasive agent coated with alumina powder. By this polishing, the glass substrate 2a having a thickness of 0.7 to 1.1 mm is polished to a thickness of 0.1 to 0.3 mm. The thickness of the glass substrate 2a is preferably as thin as possible in view of the above-described image shift.
【００２６】つぎに、偏光板４ａ、４ｂを接着剤で貼り
つけたり、ケースに固定したりして設け、さらに前面側
に拡散フィルム５を同様に設けることにより、図１に示
されるパネル部分が完成する。さらに周知の方法によ
り、バックライトや駆動用回路基板などを取りつけ、ケ
ース内に組み立てるなどして液晶表示装置となる。Next, the polarizing plates 4a and 4b are attached by an adhesive or fixed to a case, and a diffusion film 5 is similarly provided on the front side to complete the panel portion shown in FIG. To do. Further, by a well-known method, a backlight, a driving circuit board, and the like are attached and assembled in a case to form a liquid crystal display device.
【００２７】[0027]
【発明の効果】本発明によれば、前面側の透明基板を薄
くしたため、液晶層を透過して直接視認方向に進んでき
た光と拡散フィルムで拡散された光とのずれが小さくな
り、その結果像の輪郭のぼけも小さくなり、解像度が向
上する。したがって、繊細な文字または図形などのパタ
ーンの表示が可能になり、駅などの行先表示用の表示ボ
ードに適用したばあいでも鮮明な表示が常にえられる。
また他の分野として近年開発されている液晶ＴＶなどの
高解像度の液晶表示装置の普及に寄与する。According to the present invention, since the transparent substrate on the front side is thinned, the deviation between the light transmitted through the liquid crystal layer and directly traveling in the viewing direction and the light diffused by the diffusion film is reduced. The blur of the contour of the resulting image is also reduced, and the resolution is improved. Therefore, it becomes possible to display patterns such as delicate characters or figures, and clear display can always be obtained even when applied to a display board for destination display such as a station.
It also contributes to the widespread use of high-resolution liquid crystal display devices such as liquid crystal TVs that have been recently developed as another field.
【図１】本発明の一実施例である液晶表示装置のパネル
部分を示す断面説明図である。FIG. 1 is a cross-sectional explanatory view showing a panel portion of a liquid crystal display device which is an embodiment of the present invention.
【図２】図１の液晶表示装置の要部拡大断面説明図であ
る。FIG. 2 is an enlarged cross-sectional explanatory view of a main part of the liquid crystal display device of FIG.
【図３】大型表示ボード用液晶表示モジュールの画素部
分を説明する平面説明図である。FIG. 3 is a plan view illustrating a pixel portion of a liquid crystal display module for a large display board.
【図４】従来の液晶表示装置の要部拡大断面説明図であ
る。FIG. 4 is an enlarged cross-sectional explanatory view of a main part of a conventional liquid crystal display device.
１ 液晶表示パネル ２ａ、２ｂ 透明基板 ３ 液晶層 ４ａ、４ｂ 偏光板 ５ 拡散フィルム 1 Liquid crystal display panel 2a, 2b Transparent substrate 3 Liquid crystal layer 4a, 4b Polarizing plate 5 Diffusion film
Claims (1)
され、該両透明基板のそれぞれの外面側に偏光板が設け
られ、表示面である前面側の前記偏光板上にさらに拡散
フィルムが設けられてなる液晶表示装置であって、前記
前面側の透明基板が0.1 〜0.3 mmの厚さに形成されてな
る液晶表示装置。1. A liquid crystal layer is sandwiched between two transparent substrates, a polarizing plate is provided on the outer surface side of each of the transparent substrates, and a diffusion film is further provided on the polarizing plate on the front side which is a display surface. A liquid crystal display device comprising: a front transparent substrate having a thickness of 0.1 to 0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1405893A JPH06230356A (en) | 1993-01-29 | 1993-01-29 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1405893A JPH06230356A (en) | 1993-01-29 | 1993-01-29 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06230356A true JPH06230356A (en) | 1994-08-19 |
Family
ID=11850494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1405893A Pending JPH06230356A (en) | 1993-01-29 | 1993-01-29 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06230356A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100386856B1 (en) * | 1998-12-14 | 2003-06-09 | 엔이씨 엘씨디 테크놀로지스, 엘티디. | Liquid crystal display device |
| WO2003098580A1 (en) * | 2002-05-17 | 2003-11-27 | Toshiba Matsushita Display Technology Co., Ltd. | Display device and method of manufacturing the display device |
| JP2007025200A (en) * | 2005-07-15 | 2007-02-01 | Toshiba Matsushita Display Technology Co Ltd | Liquid crystal display element and manufacturing method thereof |
| WO2008078425A1 (en) * | 2006-12-22 | 2008-07-03 | Sharp Kabushiki Kaisha | Display unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5217793A (en) * | 1975-07-31 | 1977-02-09 | Matsushita Electric Ind Co Ltd | Liquid crystal display device |
| JPS55110218A (en) * | 1979-02-19 | 1980-08-25 | Casio Comput Co Ltd | Display cell |
| JPS60247618A (en) * | 1984-05-24 | 1985-12-07 | Seiko Epson Corp | Liquid crystal display device |
-
1993
- 1993-01-29 JP JP1405893A patent/JPH06230356A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5217793A (en) * | 1975-07-31 | 1977-02-09 | Matsushita Electric Ind Co Ltd | Liquid crystal display device |
| JPS55110218A (en) * | 1979-02-19 | 1980-08-25 | Casio Comput Co Ltd | Display cell |
| JPS60247618A (en) * | 1984-05-24 | 1985-12-07 | Seiko Epson Corp | Liquid crystal display device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100386856B1 (en) * | 1998-12-14 | 2003-06-09 | 엔이씨 엘씨디 테크놀로지스, 엘티디. | Liquid crystal display device |
| US7030944B2 (en) | 1998-12-14 | 2006-04-18 | Nec Lcd Technologies, Ltd. | Liquid crystal display device with roughened surfaces to reduce moiré fringe effects |
| WO2003098580A1 (en) * | 2002-05-17 | 2003-11-27 | Toshiba Matsushita Display Technology Co., Ltd. | Display device and method of manufacturing the display device |
| US7148944B2 (en) | 2002-05-17 | 2006-12-12 | Toshiba Matsushita Display Technology Co., Ltd. | Bendable display apparatus and method of manufacturing the same |
| US7369209B2 (en) | 2002-05-17 | 2008-05-06 | Toshiba Matsushita Display Technology Co., Ltd. | Bendable display apparatus and method of manufacturing the same |
| JP2007025200A (en) * | 2005-07-15 | 2007-02-01 | Toshiba Matsushita Display Technology Co Ltd | Liquid crystal display element and manufacturing method thereof |
| WO2008078425A1 (en) * | 2006-12-22 | 2008-07-03 | Sharp Kabushiki Kaisha | Display unit |
| JPWO2008078425A1 (en) * | 2006-12-22 | 2010-04-15 | シャープ株式会社 | Display device |
| US8199285B2 (en) | 2006-12-22 | 2012-06-12 | Sharp Kabushiki Kaisha | Display device |
| JP5037530B2 (en) * | 2006-12-22 | 2012-09-26 | シャープ株式会社 | Display device |
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