JP3204642B2 - Method for determining arrangement position of concave portion or convex portion of uneven scattering reflection electrode - Google Patents
Method for determining arrangement position of concave portion or convex portion of uneven scattering reflection electrodeInfo
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- JP3204642B2 JP3204642B2 JP14978798A JP14978798A JP3204642B2 JP 3204642 B2 JP3204642 B2 JP 3204642B2 JP 14978798 A JP14978798 A JP 14978798A JP 14978798 A JP14978798 A JP 14978798A JP 3204642 B2 JP3204642 B2 JP 3204642B2
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- concave
- liquid crystal
- convex
- uneven scattering
- reflection
- Prior art date
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Description
【０００１】[0001]
【発明の属する技術分野】本発明は、反射型液晶表示装
置に適用される凹凸散乱反射電極の凹部または凸部の配
置位置決定方法に関するものである。The present invention relates to relates to a position determination method of the concave or convex portion of the uneven scattering reflective electrode is applied to a reflection type liquid crystal display device.
【０００２】[0002]
【従来の技術】近年、液晶表示装置は目ざましい進歩を
遂げ、ノート型パソコン、小型ＴＶなどに積極的に応用
されている。反射型液晶表示装置は、光源となるバック
ライトが不要であるため、透過型液晶表示装置よりもよ
り低消費電力化、薄型軽量化が可能であるために注目さ
れている。2. Description of the Related Art In recent years, liquid crystal display devices have made remarkable progress, and have been actively applied to notebook personal computers, small TVs, and the like. The reflective liquid crystal display device has attracted attention because it does not require a backlight as a light source, and thus can consume less power and can be thinner and lighter than the transmissive liquid crystal display device.
【０００３】反射型液晶表示装置では、外部から入射し
た光を反射させるための反射板が必須であるが、どの角
度から見ても明るく、かつぼけのない表示を得るために
は、反射と散乱の両方の機能を有する凹凸散乱反射電極
を液晶層に隣接して設け、かつその凹凸形状を最適にし
て、あらゆる方向からの入射光を、効率的に液晶表示装
置前方に反射させる必要がある。In a reflection type liquid crystal display device, a reflection plate for reflecting light incident from the outside is indispensable. However, in order to obtain a bright display without any blur from any angle, reflection and scattering are required. It is necessary to provide an uneven scattering reflective electrode having both functions adjacent to the liquid crystal layer, optimize the uneven shape, and efficiently reflect incident light from all directions toward the front of the liquid crystal display device.
【０００４】光散乱層を利用した反射型液晶表示装置の
従来例としては、特開昭５８−１２５０８４号公報に記
載された凹凸散乱反射電極を用いたものがある。高分子
樹脂からなる凹凸をフォトリソグラフィ技術により形成
し、その上に反射膜となる金属膜を成膜することによ
り、凹凸散乱反射電極を実現している。[0004] As a conventional example of a reflection type liquid crystal display device using a light scattering layer, there is one using an uneven scattering reflection electrode described in JP-A-58-125084. Irregularity scattering reflective electrodes are realized by forming irregularities made of a polymer resin by photolithography technology and forming a metal film as a reflective film thereon.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、反射板
表面の凹凸が同一形状で規則的に並んだ構造を有する前
記従来例のような反射型液晶表示装置では、反射光の干
渉が発生し、反射板に色付きが発生するという問題があ
った。However, in the reflection type liquid crystal display device of the prior art having a structure in which the irregularities on the surface of the reflection plate are regularly arranged in the same shape, interference of reflected light occurs, There is a problem that coloring occurs on the plate.
【０００６】本発明は、上記従来技術の問題点を解消す
るもので、反射板に色付きが発生しない凹凸散乱反射電
極の凹部または凸部の配置位置決定方法を提供すること
を目的とする。[0006] The present invention is intended to solve the problems of the prior art, and aims to have colored reflector to provide a position determination method of recesses or protrusions of I凹 convex scattering reflective electrode such occurred I do.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に本発明は、反射型液晶表示装置に備えられる凹凸散乱
反射電極の凹部または凸部の配置位置決定方法であっ
て、前記凹部または凸部の中心位置を正方格子または最
密充填格子の各格子点に配置した後、前記格子点をラン
ダムに移動させ、その後、前記各格子点の一部をランダ
ムに取り除き、残った格子点を前記凹部または凸部の中
心位置とすることを特徴とするものである。SUMMARY OF THE INVENTION The present invention in order to achieve the above object, a position determination method of the concave or convex portion of the uneven scattering reflective electrode provided in reflection-type liquid crystal display device, the recess or After arranging the center position of the convex portion at each lattice point of a square lattice or close-packed lattice, the lattice points are moved randomly, and then a part of each lattice point is randomly removed, and the remaining lattice points are removed. It is characterized in that it is a central position of the concave portion or the convex portion.
【０００８】この構成によれば、反射光の干渉による色
付きのない反射板を得ることができる。[0008] According to this configuration, it is possible to obtain a reflector having no coloring due to interference of reflected light.
【０００９】[0009]
【発明の実施形態】以下、本発明の実施の形態につい
て、図面を参照にしながら詳細に説明する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【００１０】（実施の形態１）図１は、本発明の実施の
形態１における反射型液晶表示装置の単位画素の凹凸散
乱反射電極の平面図を示したものである。円で表してい
る凹凸散乱反射電極の凹部または凸部を、図２に示した
ような正方格子の各格子点に位置させたものをランダム
に移動させて図３に示したような配置にし、さらにその
円の一部をランダムに取り除いて、図１の配置にしたも
のである。(Embodiment 1) FIG. 1 is a plan view of an uneven scattering reflection electrode of a unit pixel of a reflection type liquid crystal display device according to Embodiment 1 of the present invention. The concave / convex portions of the concave / convex scattering / reflection electrode represented by circles are arranged at the respective lattice points of the square lattice as shown in FIG. 2 and randomly moved to the arrangement as shown in FIG. Further, a part of the circle is removed at random, and the arrangement shown in FIG. 1 is obtained.
【００１１】図４は、凹凸散乱反射電極の形成方法を示
したものである。まず、図４（ａ）に示したように、ガ
ラス基板１上にアクリル系樹脂（日本合成ゴム、商品名
ＰＣ３３５）を１０００ｒｐｍで３０秒間スピンナー塗
布し、感光性有機絶縁膜２を形成する。９０℃で２分間
のプリベークをした後、図４（ｂ）に示したように、マ
スク３を用いてＵＶ露光し、更に図４（ｃ）に示したよ
うに、現像、リンスをして凸部２ａを形成する。次に、
図４（ｄ）に示したように、ホットプレートにて１６０
℃で２分間のポストベークをして丸みを持った凸部２ｂ
とし、更に２２０℃で１時間の本硬化を行う。更に図４
（ｅ）に示したように、アルミニウムをスパッタ成膜し
て約２００ｎｍの金属薄膜を形成し、凹凸散乱反射電極
４を形成する。凹凸散乱反射電極４の反射面は所定の形
状の凹凸面となる。FIG. 4 shows a method of forming the uneven scattering reflective electrode. First, as shown in FIG. 4A, an acrylic resin (Japanese synthetic rubber, trade name: PC335) is spin-coated on the glass substrate 1 at 1000 rpm for 30 seconds to form the photosensitive organic insulating film 2. After pre-baking at 90 ° C. for 2 minutes, as shown in FIG. 4B, UV exposure is performed using a mask 3, and further, as shown in FIG. The part 2a is formed. next,
As shown in FIG. 4 (d), 160
Post bake for 2 minutes at ℃ and rounded convex part 2b
Then, main curing is performed at 220 ° C. for 1 hour. FIG. 4
As shown in (e), an aluminum film is formed by sputtering to form a metal thin film of about 200 nm, and the uneven scattering reflective electrode 4 is formed. The reflection surface of the concave / convex scattering / reflection electrode 4 is a concave / convex surface having a predetermined shape.
【００１２】このようにして形成した凹凸散乱反射電極
の反射特性の測定結果を図５に示す。この結果から、本
実施の形態による凹凸散乱反射電極は、非常に明るいこ
とがわかる。また、このようにして形成した凹凸散乱反
射電極を白色ランプのもとで観察したところ、干渉によ
る色付きは観察されなかった。FIG. 5 shows the measurement results of the reflection characteristics of the uneven scattering reflection electrode formed as described above. From this result, it can be seen that the uneven scattering reflective electrode according to the present embodiment is very bright. In addition, when the uneven scattering reflective electrode thus formed was observed under a white lamp, no coloring due to interference was observed.
【００１３】図６は、本発明の実施の形態１における反
射型液晶表示装置の断面を示したものである。図６にお
いて、５は偏光板、６は複屈折フィルム、７は上側透明
基板、８はカラーフィルタ、９は透明電極、１０は配向
膜、１１は液晶層、１２は凹凸散乱反射電極、１３は感
光性有機絶縁膜、１４は下側基板である。ここでは、上
側透明基板７および下側基板１４としてガラス基板を用
いた。FIG. 6 shows a cross section of the reflective liquid crystal display device according to the first embodiment of the present invention. In FIG. 6, 5 is a polarizing plate, 6 is a birefringent film, 7 is an upper transparent substrate, 8 is a color filter, 9 is a transparent electrode, 10 is an alignment film, 11 is a liquid crystal layer, 12 is an uneven scattering reflective electrode, and 13 is The photosensitive organic insulating film 14 is a lower substrate. Here, a glass substrate was used as the upper transparent substrate 7 and the lower substrate 14.
【００１４】透明電極９および凹凸散乱反射電極１２の
上にポリイミド樹脂を印刷、熱硬化した後、ラビングが
互いに反平行になるように、レーヨン布を用いたラビン
グ法による配向処理を行うことにより配向膜１０を形成
した。After a polyimide resin is printed on the transparent electrode 9 and the uneven scattering / reflection electrode 12 and cured by heat, an alignment process is performed by a rubbing method using a rayon cloth so that the rubbing is antiparallel to each other. The film 10 was formed.
【００１５】次に、上側透明基板７上の表示画素領域の
周囲部分に、直径５．７μｍのガラスファイバを１．５
重量％混合させた熱硬化性シール樹脂をスクリーン印刷
し、下側基板１４上には直径４．５μｍの樹脂ビーズを
１５０個／ｍｍ2の密度で散布し、上側透明基板７と下
側基板１４を互いに貼り合わせ、１５０℃でシール樹脂
を硬化させた。その後、屈折率異方性Δｎが０．１４の
ネマティック液晶を真空注入し、紫外線硬化樹脂で封口
した後、紫外線を照射して硬化させた。Next, a glass fiber having a diameter of 5.7 μm is placed around the display pixel area on the upper transparent substrate 7 by 1.5 μm.
The thermosetting sealing resin mixed by weight% is screen printed, and resin beads having a diameter of 4.5 μm are sprayed on the lower substrate 14 at a density of 150 / mm 2 , and the upper transparent substrate 7 and the lower substrate 14 are dispersed. Were bonded together, and the sealing resin was cured at 150 ° C. Thereafter, a nematic liquid crystal having a refractive index anisotropy Δn of 0.14 was vacuum-injected, sealed with an ultraviolet curable resin, and then cured by irradiating ultraviolet rays.
【００１６】[0016]
【発明の効果】以上のことから明らかなように、本発明
の凹凸散乱反射電極の凹部または凸部の配置位置決定方
法では、凹凸散乱反射電極の凹部または凸部の中心位置
を正方格子または最密充填格子の各格子点に配置した
後、前記格子点をランダムに移動させ、その後、前記各
格子点の一部をランダムに取り除き、残った格子点を前
記凹部または凸部の中心位置とすることにより、非常に
明るく、かつ干渉による色付きのない、優れた反射特性
を得ることができる。As is apparent from the above description, the present invention
The concave convex recess of scattering reflective electrode or protrusion position determination method, after placing the center positions of the recesses or protrusions of the uneven scattering reflective electrode on each lattice point of the square lattice or close-packed lattice, the lattice points Is moved randomly, and thereafter, a part of each of the lattice points is randomly removed, and the remaining lattice points are used as the center positions of the concave portions or the convex portions, thereby being extremely bright and free from coloring due to interference. Reflective characteristics can be obtained.
【００１７】偏光板５側から入射した光は、複屈折フィ
ルム６、液晶層１１を通過して凹凸散乱反射電極１２に
到達する。複屈折フィルム６と液晶層１１のリタデーシ
ョンの差を光の波長の１／４に設定しているがために、
反射面においては光は円偏光状態になり、反射光が再び
偏光板５に到達したところでは入射直線偏光とは直交す
る方向の直線偏光状態となる。このとき、暗状態が実現
できる。Light incident from the polarizing plate 5 side passes through the birefringent film 6 and the liquid crystal layer 11 and reaches the uneven scattering reflective electrode 12. Since the difference in retardation between the birefringent film 6 and the liquid crystal layer 11 is set to １ ／ of the wavelength of light,
On the reflection surface, the light is in a circularly polarized state, and when the reflected light reaches the polarizing plate 5 again, the light is in a linearly polarized state in a direction orthogonal to the incident linearly polarized light. At this time, a dark state can be realized.
【００１８】さらに、液晶層１１に電圧を印加すること
により、液晶層１１を通過する光を変調することができ
る。印加する電圧とともに液晶層１１の有効なリタデー
ション値は減少する。液晶層１１と複屈折フィルム６の
リタデーション値が等しくなった時、反射光は再び偏光
板５に到達したところでは入射直線偏光状態と同じ方向
の直線偏光状態となる。この時、明状態が実現できる。Further, by applying a voltage to the liquid crystal layer 11, light passing through the liquid crystal layer 11 can be modulated. The effective retardation value of the liquid crystal layer 11 decreases with the applied voltage. When the retardation values of the liquid crystal layer 11 and the birefringent film 6 become equal, when the reflected light reaches the polarizing plate 5 again, it becomes a linearly polarized light in the same direction as the incident linearly polarized light. At this time, a bright state can be realized.
【００１９】以上のように、凹凸散乱反射電極の形状を
最適にすることにより、非常に明るい反射特性が得られ
た。As described above, an extremely bright reflection characteristic was obtained by optimizing the shape of the uneven scattering reflection electrode.
【００２０】（比較例１）１画素の凹凸散乱反射電極の
平面構造が、図３に示したような凹凸散乱反射電極を実
施の形態１と同様の方法で形成した。この凹凸散乱反射
電極を白色ランプのもとで観察したところ、干渉による
色付きが観察された。(Comparative Example 1) An uneven scattering reflective electrode having a planar structure as shown in FIG. When the uneven scattering reflective electrode was observed under a white lamp, coloring due to interference was observed.
【００２１】このことから、凹凸散乱反射電極の凹部ま
たは凸部の中心の配置が、正方格子の各格子点をランダ
ムに移動させただけの配置である場合には、反射光の干
渉を完全に抑制することができないことがわかった。From this, if the arrangement of the centers of the concave portions or convex portions of the concave / convex scattering / reflecting electrode is such that the lattice points of the square lattice are only randomly moved, the interference of the reflected light is completely eliminated. It was found that it could not be suppressed.
【００２２】（実施の形態２）図７は、本発明の実施の
形態２における反射型液晶表示装置の単位画素の凹凸散
乱反射電極の平面図を示したものである。ここでは、凹
凸散乱反射電極の凹部または凸部を表す円の配置は、図
８に示したような最密充填格子の各格子点に位置させた
ものをランダムに移動させて図９に示したような配置に
し、さらにその円の一部をランダムに取り除いて、図７
の配置にしたものである。(Embodiment 2) FIG. 7 is a plan view of an uneven scattering reflection electrode of a unit pixel of a reflection type liquid crystal display device according to Embodiment 2 of the present invention. Here, the arrangement of the circles representing the concave portions or the convex portions of the concave-convex scattering reflection electrode is shown in FIG. 9 by randomly moving the one positioned at each lattice point of the close-packed lattice as shown in FIG. 7 and a part of the circle is removed at random.
This is the arrangement.
【００２３】凹凸散乱反射電極は、図４の実施の形態１
と同様の方法により形成した。このようにして形成した
凹凸散乱反射電極の反射特性の測定結果を図１０に示
す。このことから、本実施の形態２における凹凸散乱反
射電極は、非常に明るいことがわかる。また、この凹凸
散乱反射電極を白色ランプのもとで観察したところ、干
渉による色付きは観察されなかった。The uneven scattering reflection electrode is the same as the first embodiment shown in FIG.
It was formed by the same method as described above. FIG. 10 shows the measurement results of the reflection characteristics of the uneven scattering reflection electrode formed as described above. This indicates that the uneven scattering reflective electrode according to the second embodiment is very bright. When the uneven scattering reflective electrode was observed under a white lamp, no coloration due to interference was observed.
【００２４】また、このようにして形成した凹凸散乱反
射電極を用いて、実施の形態１と同様の方法により反射
型液晶表示装置を作製したところ、実施の形態１におけ
る反射型液晶表示装置と同様に、非常に明るい反射特性
が得られた。A reflection type liquid crystal display device was manufactured by the same method as in the first embodiment using the concave / convex scattering / reflection electrode thus formed, and was similar to the reflection type liquid crystal display device in the first embodiment. In addition, a very bright reflection characteristic was obtained.
【００２５】（比較例２）１画素の凹凸散乱反射電極の
平面構造が、図９に示したような凹凸散乱反射電極を実
施の形態２と同様の方法で作製した。この凹凸散乱反射
電極を白色ランプのもとで観察したところ、干渉による
色付きが観察された。COMPARATIVE EXAMPLE 2 An uneven scattering reflective electrode having a planar structure of one pixel as shown in FIG. 9 was produced in the same manner as in the second embodiment. When the uneven scattering reflective electrode was observed under a white lamp, coloring due to interference was observed.
【００２６】このことから、凹凸散乱反射電極の凹部ま
たは凸部の中心の配置が、最密充填格子の各格子点をラ
ンダムに移動させただけの配置である場合には、反射光
の干渉を完全に抑制することができないことがわかっ
た。From this, if the arrangement of the centers of the concave or convex portions of the uneven scattering / reflection electrode is an arrangement in which each lattice point of the closest-packed lattice is simply moved at random, interference of reflected light is reduced. It was found that it could not be completely suppressed.
【００２７】なお、本発明の実施の形態１、２におい
て、液晶の動作モードとしては、電界制御複屈折効果を
利用した例で説明したが、この動作モードに限定される
ものではなく、１枚偏光板構成のＴＮモード、ＳＴＮモ
ード、または偏光板を用いない動作モードであるゲスト
ホストモード、高分子分散型液晶モードなどで、凹凸散
乱反射面を用いた構成においても実質的に同様の効果を
得ることができる。In the first and second embodiments of the present invention, the operation mode of the liquid crystal has been described by using the electric field control birefringence effect, but is not limited to this operation mode. Substantially the same effect can be obtained even in a configuration using an uneven scattering / reflection surface in a TN mode or STN mode having a polarizing plate configuration, a guest host mode which is an operation mode not using a polarizing plate, or a polymer dispersion type liquid crystal mode. Obtainable.
【００２８】また、本発明の実施の形態１、２におい
て、凹凸散乱反射電極の凹部または凸部の平面形状を円
としたが、発明のねらいとする効果はそれによって限定
的に得られるものではなく、例えば三角形、四角形、五
角形、六角形、八角形、楕円においても同様の効果を得
ることができる。Further, in the first and second embodiments of the present invention, the concave and convex portions of the concave / convex scattering / reflecting electrode have a planar shape of a circle, but the effect aimed at by the invention is not limited to this. For example, a similar effect can be obtained in a triangle, a quadrangle, a pentagon, a hexagon, an octagon, and an ellipse.
【００２９】また、本発明の実施の形態１、２におい
て、反射膜としてアルミニウムを構成金属とする反射電
極を用いたが、発明のねらいとする効果はそれによって
限定的に得られるものではなく、例えば銀を構成金属と
する反射電極を用いても同様の効果を得ることができ
る。Further, in Embodiments 1 and 2 of the present invention, a reflective electrode using aluminum as a constituent metal is used as the reflective film. However, the effects aimed at by the present invention are not limited to these. For example, a similar effect can be obtained by using a reflective electrode containing silver as a constituent metal.
【００３０】さらに、本発明の内容は、単純マトリクス
駆動、ＴＦＴなどのスイッチング素子による駆動のいず
れに対しても適用できることは明らかである。Further, it is clear that the contents of the present invention can be applied to any of simple matrix driving and driving by a switching element such as a TFT.
【００３１】[0031]
【発明の効果】以上のことから明らかなように、本発明
の反射型液晶表示装置では、凹凸散乱反射電極の凹部ま
たは凸部の中心が、正方格子または最密充填格子の各格
子点をランダムに移動させ、かつその格子点の一部をラ
ンダムに取り除いてなる格子点位置に配置されることに
より、非常に明るく、かつ干渉による色づきのない、優
れた反射特性を得ることができる。As is apparent from the above, in the reflection type liquid crystal display device of the present invention, the center of the concave or convex portion of the concave / convex scattering reflective electrode is formed by randomly setting each lattice point of the square lattice or the close-packed lattice. , And arranged at the lattice point positions where some of the lattice points are removed at random, it is possible to obtain excellent reflection characteristics that are very bright and free from coloring due to interference.
【図１】本発明の実施の形態１における反射型液晶表示
装置の１画素の凹凸散乱反射電極の平面図FIG. 1 is a plan view of an uneven scattering reflective electrode of one pixel of a reflective liquid crystal display device according to a first embodiment of the present invention.
【図２】凹部または凸部を表す円を正方格子状に配列さ
せた図FIG. 2 is a diagram in which circles representing concave portions or convex portions are arranged in a square lattice shape.
【図３】正方格子状に配列させた円をランダムに移動さ
せた図FIG. 3 is a diagram in which circles arranged in a square lattice are randomly moved.
【図４】本発明の実施の形態１における凹凸散乱反射電
極の形成方法を示す工程断面図FIG. 4 is a process cross-sectional view illustrating a method for forming the uneven scattering reflective electrode according to the first embodiment of the present invention.
【図５】本発明の実施の形態１における凹凸散乱反射電
極の反射特性図FIG. 5 is a reflection characteristic diagram of the uneven scattering reflective electrode according to the first embodiment of the present invention.
【図６】本発明の実施の形態１における反射型液晶表示
装置の基本構成を示す断面図FIG. 6 is a cross-sectional view illustrating a basic configuration of a reflective liquid crystal display device according to Embodiment 1 of the present invention.
【図７】本発明の実施の形態２における反射型液晶表示
装置の１画素の凹凸散乱反射電極の平面図FIG. 7 is a plan view of a concavo-convex scattering reflection electrode of one pixel of the reflection type liquid crystal display device according to the second embodiment of the present invention.
【図８】凹部または凸部を表す円を最密充填格子状に配
列させた図FIG. 8 is a diagram in which circles representing concave portions or convex portions are arranged in a close-packed lattice shape.
【図９】最密充填格子状に配列させた円をランダムに移
動させた図FIG. 9 is a diagram in which circles arranged in a close-packed lattice shape are randomly moved.
【図１０】本発明の実施の形態２における凹凸散乱反射
電極の反射特性図FIG. 10 is a graph showing a reflection characteristic of an uneven scattering reflective electrode according to the second embodiment of the present invention.
１ ガラス基板 ２，１３ 感光性有機絶縁膜 ３ マスク ４，１２ 凹凸散乱反射電極 ５ 偏光板 ６ 複屈折フィルム ７ 上側透明基板 ８ カラーフィルタ ９ 透明電極 １０ 配向膜 １１ 液晶層 １４ 下側基板 DESCRIPTION OF SYMBOLS 1 Glass substrate 2,13 Photosensitive organic insulating film 3 Mask 4,12 Irregular scattering reflection electrode 5 Polarizer 6 Birefringent film 7 Upper transparent substrate 8 Color filter 9 Transparent electrode 10 Alignment film 11 Liquid crystal layer 14 Lower substrate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小川 鉄 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 昭57−66473（ＪＰ，Ａ) 特開 平６−273800（ＪＰ，Ａ) 特開 平５−323371（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) G02F 1/1343 G02F 1/1335 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Ogawa Tetsudo 1006 Kazuma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-57-66473 (JP, A) JP-A-6- 273800 (JP, A) JP-A-5-323371 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) G02F 1/1343 G02F 1/1335
Claims (2)
乱反射電極の凹部または凸部の配置位置決定方法であっ
て、前記凹部または凸部の中心位置を正方格子の各格子
点に配置した後、前記格子点をランダムに移動させ、そ
の後、前記各格子点の一部をランダムに取り除き、残っ
た格子点を前記凹部または凸部の中心位置とすることを
特徴とする凹凸散乱反射電極の凹部または凸部の配置位
置決定方法。 An uneven scattering provided in a reflection type liquid crystal display device.
This is a method for determining the arrangement position of the concave or convex portions of the irregular reflection electrode.
The center position of the concave portion or the convex portion is determined by each of the square lattices.
After arranging the grid points, the grid points are moved randomly, and
After, a part of each grid point is removed at random and the remaining
That the lattice point is the central position of the concave or convex portion.
Characteristic position of concave or convex part of uneven scattering reflective electrode
Placement decision method.
乱反射電極の凹部または凸部の配置位置決定方法であっ
て、前記凹部または凸部の中心位置を最密充填格子の各
格子点に配置した後、前記格子点をランダムに移動さ
せ、その後、前記各格子点の一部をランダムに取り除
き、残った格子点を前記凹部または凸部の中心位置とす
ることを特徴とする凹凸散乱反射電極の凹部または凸部
の配置位置決定方法。 2. An uneven scattering provided in a reflection type liquid crystal display device.
This is a method for determining the arrangement position of the concave or convex portions of the irregular reflection electrode.
The center position of the concave or convex portion is defined by each of the closest-packed grids.
After placing the grid points, the grid points are moved randomly.
And then randomly remove some of the grid points.
The remaining grid points are used as the center positions of the concave portions or convex portions.
Recesses or protrusions of the uneven scattering / reflection electrode
Placement position determination method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14978798A JP3204642B2 (en) | 1998-05-29 | 1998-05-29 | Method for determining arrangement position of concave portion or convex portion of uneven scattering reflection electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14978798A JP3204642B2 (en) | 1998-05-29 | 1998-05-29 | Method for determining arrangement position of concave portion or convex portion of uneven scattering reflection electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11337964A JPH11337964A (en) | 1999-12-10 |
| JP3204642B2 true JP3204642B2 (en) | 2001-09-04 |
Family
ID=15482713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14978798A Expired - Lifetime JP3204642B2 (en) | 1998-05-29 | 1998-05-29 | Method for determining arrangement position of concave portion or convex portion of uneven scattering reflection electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3204642B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW548689B (en) | 2001-01-25 | 2003-08-21 | Fujitsu Display Tech | Reflection type liquid crystal display device and manufacturing method thereof |
| US7480019B2 (en) | 2001-01-25 | 2009-01-20 | Sharp Kabushiki Kaisha | Method of manufacturing a substrate for an lcd device |
| KR20020094829A (en) * | 2001-06-13 | 2002-12-18 | 대성전기공업 주식회사 | Method for forming scattering pattern of light guide plate for liquid crystal display |
| JP3753673B2 (en) | 2001-06-20 | 2006-03-08 | セイコーエプソン株式会社 | Manufacturing method of liquid crystal display device |
| JP3990141B2 (en) | 2001-11-08 | 2007-10-10 | Ｎｅｃ液晶テクノロジー株式会社 | Liquid crystal display |
| JP2003302742A (en) | 2002-04-10 | 2003-10-24 | Seiko Epson Corp | Mark, substrate with light reflection film, method for manufacturing light reflection film, and liquid crystal display device, and electronic apparatus |
| JP3733923B2 (en) | 2002-04-10 | 2006-01-11 | セイコーエプソン株式会社 | Mask and display device manufacturing method |
| JP4480599B2 (en) | 2005-02-14 | 2010-06-16 | Ｎｅｃ液晶テクノロジー株式会社 | Reflector, method for manufacturing the same, and liquid crystal display device |
| JP4883525B2 (en) | 2006-08-02 | 2012-02-22 | Ｎｌｔテクノロジー株式会社 | Reflector and liquid crystal display device |
-
1998
- 1998-05-29 JP JP14978798A patent/JP3204642B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11337964A (en) | 1999-12-10 |
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