JP2003270623A5

JP2003270623A5 - Liquid crystal display device and method of manufacturing liquid crystal display device

Info

Publication number: JP2003270623A5
Application number: JP2003007627A
Authority: JP
Filing date: 2003-01-15
Publication date: 2005-04-28
Anticipated expiration: 2016-11-11

Description

【００１８】
【課題を解決するための手段】
上記課題を解決するために本発明が講じた手段は、対向する一対の基板間に液晶を挟持してなり、前記基板の内面に形成された一対の電極によって形成される画素領域を複数有する液晶表示装置において、複数の色を含むカラーフィルタと、前記画素領域に対応して設けられた反射層と、を具備し、前記画素領域は、前記カラーフィルタの着色パターンが形成された部位、及び前記着色パターンが形成されない部位を有し、前記着色パターンが形成された部位の面積が、前記色同士で互いに異なることを特徴とする。
[0018]
[Means for Solving the Problems]
The means taken by the present invention in order to solve the above problems is a liquid crystal having a liquid crystal sandwiched between a pair of opposing substrates and having a plurality of pixel regions formed by a pair of electrodes formed on the inner surface of the substrate. The display device includes: a color filter including a plurality of colors; and a reflective layer provided corresponding to the pixel region, wherein the pixel region is a portion where a coloring pattern of the color filter is formed, and It has a part in which a coloring pattern is not formed, and areas of a part in which the coloring pattern is formed are characterized in that the colors are mutually different.

本発明によれば、カラーフィルタが画素領域内において所定の平面パターンで部分的に形成されているため、一方の基板から入射された光は、カラーフィルタを透過する際に、各画素領域内においてそれぞれカラーフィルタの形成されている部分と形成されていない部分とによって色調的に変調されるので、液晶層が透明状態になっても、背景が映し込まれたり、直射光がそのままの状態で目に入ったりすることがなくなるから、画素領域によって形成される表示に影響を与えることなく、しかも、表示の明るさを犠牲にすることなく、液晶表示装置の視認性を向上させることができる。また、カラーフィルタの形成されていない部分も存在するため、電極の電界をカラーフィルタを介することなく直接に液晶に印加することができるため、駆動電圧の低減と駆動電圧のマージンの拡大を図ることも可能である。
According to the present invention, since the color filter is partially formed in a predetermined plane pattern in the pixel area, light incident from one of the substrates is transmitted in the color filter in each pixel area. The color filter is modulated in color tone by the portion where the color filter is formed and the portion where the color filter is not formed, so even if the liquid crystal layer is in the transparent state, the background is reflected or the direct light remains as it is Therefore, the visibility of the liquid crystal display device can be improved without affecting the display formed by the pixel region and without sacrificing the brightness of the display. In addition, since there is a portion in which the color filter is not formed, the electric field of the electrode can be applied directly to the liquid crystal without the color filter, so the drive voltage can be reduced and the drive voltage margin can be increased. Is also possible.

ここで、液晶層は液晶分子の中に高分子が分散した構成であり、電圧の印加状態により光透過状態と光散乱状態とを制御してなるものである。さらに、前記カラーフィルタが赤、青、緑の色要素、もしくはイエロー、マゼンダ、シアン、の色要素からなる。前記画素領域内における前記カラーフィルタの形成面積の割合が前記色要素のうち少なくとも２種について相互に異なることが好ましい。この手段によれば、カラーフィルタの形成面積の割合を色同士で互いに異ならせることによって、形成面積の割合によって色調を相互に調整することができ、色要素自体の色調を変えることなくカラーフィルタの色調特性を調整することができるから、高品位のカラー表示を実現することができる。
Here, the liquid crystal layer has a configuration in which a polymer is dispersed in liquid crystal molecules, and is formed by controlling a light transmission state and a light scattering state according to an applied state of a voltage. Furthermore, the color filter is composed of red, blue and green color elements, or yellow, magenta and cyan color elements. It is preferable that the ratio of the formation area of the color filter in the pixel area is mutually different for at least two of the color elements. According to this means, the color tone can be mutually adjusted by the ratio of the formation area by making the ratio of the formation area of the color filter mutually different, and it is possible to change the color filter without changing the color tone of the color element itself. Since color tone characteristics can be adjusted, high-quality color display can be realized.

また、前記カラーフィルタの平面パターンは、前記画素領域内において単一の島状に形成されていることが好ましい。
Preferably, the plane pattern of the color filter is formed in a single island in the pixel area.

この場合には、カラーフィルタを単一の島状に形成することによって、例えばマスクパターンの大きさを変更するなどの軽微な変更のみで対応することができるため、従来の製造工程をほとんど変えることなく製造することができる。
In this case, by forming the color filter into a single island, it is possible to cope with only minor changes such as changing the size of the mask pattern, for example. can do.

さらに、前記着色パターンが形成されない部位が、前記着色パターンが形成された部位の周囲に設けられていることが望ましい。
Furthermore, it is desirable that a portion where the colored pattern is not formed be provided around the portion where the colored pattern is formed.

また、前記着色パターンは複数の着色パターンでなるようにしても良い。
Further, the colored pattern may be a plurality of colored patterns.

この手段においても、画素領域内に複数の分割パターン部を備えたカラーフィルタが形成されているため、入射光又は反射光を充分に変調することができ、表示品位を確実に向上させることができる。
Also in this means, since the color filter having a plurality of divided pattern portions is formed in the pixel area, the incident light or the reflected light can be sufficiently modulated, and the display quality can be surely improved. .

また、本発明においては前記カラーフィルタが赤、青、緑の色を含むことが望ましい。
Further, in the present invention, it is desirable that the color filters include red, blue and green colors.

また、本発明が講じた手段は対向する一対の基板間に液晶を挟持してなり、前記基板の内面に形成された一対の電極によって形成される画素領域を複数有する液晶表示装置の製造方法において、複数の色を含むカラーフィルタを形成する工程と、前記画素領域に反射層を形成する工程と、を具備し、前記カラーフィルタを形成する工程において、前記画素領域に、前記カラーフィルタの着色パターンを部分的に形成し、前記着色パターンが形成された部分の面積を、前記色同士で互いに異ならせることを特徴とする。
Further, according to the method of the present invention, there is provided a method of manufacturing a liquid crystal display device comprising a plurality of pixel regions formed by sandwiching liquid crystal between a pair of opposed substrates and formed by a pair of electrodes formed on the inner surface of the substrate. Forming a color filter including a plurality of colors, forming a reflective layer in the pixel area, and forming the color filter, wherein the color pattern of the color filter is formed in the pixel area. Are partially formed, and the areas of the portions where the colored patterns are formed are made different among the colors.

Claims

In a liquid crystal display device having a plurality of pixel regions formed by sandwiching liquid crystal between a pair of opposing substrates and formed by a pair of electrodes formed on the inner surface of the substrate,
Color filters containing multiple colors ,
Anda reflective layer provided corresponding to the pixel region,
The pixel region has a collar portion colored pattern of the filter is formed, and the portion on which the colored pattern is not formed,
The liquid crystal display device characterized in that the areas of the portions where the colored patterns are formed are different among the colors .

The liquid crystal display device according to claim 1, wherein the colored pattern is a single island-shaped colored pattern.

In the liquid crystal display device according to claim 2, the liquid crystal display device portion where the colored pattern is not formed, characterized by comprising provided around the site where the colored pattern has been formed.

The liquid crystal display device according to claim 1, wherein the colored pattern comprises a plurality of colored patterns.

The liquid crystal display device according to any one of claims 1 to 4, wherein the color filter includes red, blue and green colors.

In a method of manufacturing a liquid crystal display device, the liquid crystal is sandwiched between a pair of opposing substrates, and a plurality of pixel regions are formed by the pair of electrodes formed on the inner surface of the substrate,
  Forming a color filter including a plurality of colors;
  Forming a reflective layer in the pixel area;
  In the step of forming the color filter,
Partially forming a colored pattern of the color filter in the pixel area;
  A method of manufacturing a liquid crystal display device, wherein the areas of the portions where the colored patterns are formed are made different among the colors.

The method of manufacturing a liquid crystal display device according to claim 6, wherein the colored pattern is formed in a single island shape.

The method of manufacturing a liquid crystal display device according to claim 6, wherein the colored pattern is formed of a plurality of colored patterns.