JP2000231112A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JP2000231112A JP2000231112A JP11032764A JP3276499A JP2000231112A JP 2000231112 A JP2000231112 A JP 2000231112A JP 11032764 A JP11032764 A JP 11032764A JP 3276499 A JP3276499 A JP 3276499A JP 2000231112 A JP2000231112 A JP 2000231112A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- injection
- display device
- crystal display
- injection port
- 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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- Liquid Crystal (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、一対のガラス基板
間に液晶を迅速に注入することができる液晶表示装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device capable of rapidly injecting a liquid crystal between a pair of glass substrates.
【０００２】[0002]
【従来の技術】 従来、液晶表示装置の一対のガラス基
板間への液晶の注入は、平面図である図４に示すよう
に、上下のガラス基板３１,３２(図５(Ｂ)参照)間に注
入口３５をもち,液晶材料を囲い込むためのシール樹脂
からなる矩形枠３４を挟み込み、注入口３５から真空注
入法により枠内に液晶を注入した後、注入口３５を紫外
線硬化樹脂やエポキシ樹脂で封止して行なわれている。
矩形枠３４は、液晶の囲い込みのほか、表示特性に密接
に関係するセル厚さの調整機能をもつため、一対のガラ
ス基板の矩形枠３４を挟み込む対向面は、予め平坦に仕
上げられる。2. Description of the Related Art Conventionally, liquid crystal is injected between a pair of glass substrates of a liquid crystal display device, as shown in FIG. 4 which is a plan view, between upper and lower glass substrates 31 and 32 (see FIG. 5B). A rectangular frame 34 made of a sealing resin for enclosing the liquid crystal material is sandwiched therebetween, and liquid crystal is injected into the frame from the injection port 35 by a vacuum injection method. It is performed by sealing with resin.
Since the rectangular frame 34 has a function of adjusting the cell thickness closely related to the display characteristics, in addition to surrounding the liquid crystal, the opposing surfaces of the pair of glass substrates that sandwich the rectangular frame 34 are finished to be flat beforehand.
【０００３】上記注入口３５は、上側のガラス基板を透
かして見た図５(Ａ)の詳細平面図に示すように、矩形枠
３４の開口両端を外方へ直角に曲げてなる端部リブ３
６,３６と、これらの中間に平行に設けた中間リブ３７
と、開口の内側に注入流を左右に分岐させるように設け
た横リブ３８からなる。また、注入口３５の縦断面は、
図５(Ａ)のb−b線断面図である図５(Ｂ)に示すとおりで
あり、図示しない対向電極をもつ上側のガラス基板３１
と、図示しない薄膜トランジスタ等をもつ下側のガラス
基板３２との間に、注入口３５をもつシール樹脂製の矩
形枠３４が挟み込まれている。下側のガラス基板３２の
上面には、透明アクリル樹脂からなる層間絶縁膜３３が
形成されており、この層間絶縁膜３３は、図示しない下
方の薄膜トランジスタおよびこれを駆動するゲート信号
線,ソース信号線と、上方の表示画素電極とを、上記両
信号線が各表示画素電極の周辺と上下に揃った状態で分
離して、各画素間の遮光をブラックマトリックスなしで
実現して、液晶表示装置の開口率向上を図るものであ
る。[0005] As shown in a detailed plan view of FIG. 5A through the upper glass substrate, an inlet rib 35 is formed by bending both ends of an opening of a rectangular frame 34 outward at right angles. 3
6, 36 and an intermediate rib 37 provided in parallel between them.
And a lateral rib 38 provided inside the opening so as to branch the injection flow to the left and right. The vertical section of the injection port 35 is
5 (B), which is a cross-sectional view taken along the line bb of FIG. 5 (A), and the upper glass substrate 31 having a not-shown counter electrode.
A rectangular frame 34 made of a sealing resin having an injection port 35 is interposed between the lower glass substrate 32 having a thin film transistor and the like (not shown). An interlayer insulating film 33 made of a transparent acrylic resin is formed on the upper surface of the lower glass substrate 32. The interlayer insulating film 33 includes a lower thin film transistor (not shown) and a gate signal line and a source signal line for driving the thin film transistor. The upper display pixel electrode is separated from the upper display pixel electrode in a state in which the two signal lines are vertically aligned with the periphery of each display pixel electrode, thereby realizing light shielding between the pixels without a black matrix. The purpose is to improve the aperture ratio.
【０００４】[0004]
【発明が解決しようとする課題】さて、液晶表示装置
は、高画質化,大画面化への傾向が最近とみに顕著とな
ってきた。高画質化は、必然的に液晶表示装置の画素数
および取出し電極端子数の増大をもたらし、大画面化
は、必然的に製造時の液晶注入時間の増大をもたらす。
ここで、上記従来の液晶表示装置について、液晶注入時
間を増大させずに大画面化を図ろうとすると、図４,図
５(Ｂ)から判るように、注入口３５が１つしかなく、そ
の注入口３５の断面積も、(低い矩形枠の高さ×狭い開
口幅)と小さいため、新たな注入口を矩形枠３４に増設
しなければならない。しかし、注入口の増設は、矩形枠
３４のシール性能を低下させるうえ、注入口付近には取
出し電極端子を配置できないから、取出し電極端子数を
増やして高画質化を図ることもできなくなる。つまり、
従来の液晶表装置は、液晶注入時間の短縮を図ったり、
液晶注入時間を増大させずに大画面化,高画質化を図っ
たりできないという問題がある。The tendency of the liquid crystal display device to have a higher image quality and a larger screen has recently become remarkable. Higher image quality necessarily increases the number of pixels and the number of extraction electrode terminals of the liquid crystal display device, and enlargement of the screen necessarily increases the liquid crystal injection time during manufacturing.
Here, in the above-mentioned conventional liquid crystal display device, if an attempt is made to increase the screen size without increasing the liquid crystal injection time, as can be seen from FIGS. Since the cross-sectional area of the inlet 35 is as small as (low rectangular frame height × narrow opening width), a new inlet needs to be added to the rectangular frame 34. However, the addition of the injection port deteriorates the sealing performance of the rectangular frame 34, and the extraction electrode terminals cannot be arranged near the injection port. Therefore, it is not possible to increase the number of extraction electrode terminals to achieve high image quality. That is,
Conventional liquid crystal display devices reduce the liquid crystal injection time,
There is a problem that it is impossible to increase the screen size and the image quality without increasing the liquid crystal injection time.
【０００５】そこで、本発明の目的は、一対の基板の注
入口付近の構造を工夫することによって、注入口を増設
することなく、液晶注入時間を短縮することができ、液
晶注入時間を増大させずに大画面化,高画質化を図るこ
とができる液晶表示装置を提供することにある。Accordingly, an object of the present invention is to improve the structure near the injection port of a pair of substrates so that the liquid crystal injection time can be shortened without increasing the injection port, and the liquid crystal injection time can be increased. It is an object of the present invention to provide a liquid crystal display device capable of achieving a large screen and high image quality without using a liquid crystal display device.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、請求項１の発明は、一対の基板の間に、シール枠に
囲まれた液晶層を設け、上記基板のうちの少なくとも一
方の基板の液晶層側に透明な樹脂絶縁膜が形成された液
晶表示装置において、上記シール枠に設けられた液晶注
入口に連なる注入溝を、上記樹脂絶縁膜に設けたことを
特徴とする。According to a first aspect of the present invention, a liquid crystal layer surrounded by a seal frame is provided between a pair of substrates, and at least one of the substrates is provided. In the liquid crystal display device in which a transparent resin insulating film is formed on the liquid crystal layer side, an injection groove connected to a liquid crystal injection port provided in the seal frame is provided in the resin insulating film.
【０００７】請求項１の液晶表示装置では、少なくとも
一方の基板の液晶層側の樹脂絶縁膜に、シール枠の液晶
注入口に連なる注入溝が設けられているので、注入口の
数を増やさなくても、注入溝の分だけ注入口の断面積が
大きくなるから、液晶注入時間を短縮することができ、
また液晶注入時間を増大させずに大画面化,高画質化を
図ることができる。In the liquid crystal display device according to the first aspect, at least one of the substrates has an injection groove connected to the liquid crystal injection port of the seal frame in the resin insulating film on the liquid crystal layer side, so that the number of the injection ports is not increased. However, since the cross-sectional area of the injection port is increased by the injection groove, the liquid crystal injection time can be reduced,
In addition, a large screen and high image quality can be achieved without increasing the liquid crystal injection time.
【０００８】請求項２の発明は、一対の基板の間に、シ
ール枠に囲まれた液晶層を設け、上記基板のうちの一方
の基板の液晶層側に、薄膜トランジスタおよびこの薄膜
トランジスタを駆動するための配線パターンと表示画素
電極とを分離する透明樹脂からなる層間絶縁膜が形成さ
れたアクティブマトリックス型液晶表示装置において、
上記シール枠に設けられた液晶注入口に連なる注入溝
を、上記層間絶縁膜に設けたことを特徴とする。According to a second aspect of the present invention, a liquid crystal layer surrounded by a seal frame is provided between a pair of substrates, and a thin film transistor and a thin film transistor are provided on one of the substrates on the liquid crystal layer side. In an active matrix type liquid crystal display device in which an interlayer insulating film made of a transparent resin for separating a wiring pattern and a display pixel electrode is formed,
An injection groove connected to a liquid crystal injection port provided in the seal frame is provided in the interlayer insulating film.
【０００９】請求項２のアクティブマトリックス型液晶
表示装置では、一方の基板の液晶層側に設けられ、薄膜
トランジスタ等と表示画素電極とを分離する層間絶縁膜
に、シール枠の液晶注入口に連なる注入溝が設けられて
いるので、注入口の数を増やさなくても、注入溝の分だ
け注入口の断面積が大きくなるから、液晶注入時間を短
縮することができ、また液晶注入時間を増大させずに大
画面化,高画質化を図ることができる。In the active matrix type liquid crystal display device according to the present invention, an injection is provided on the liquid crystal layer side of one of the substrates and is continuous with the liquid crystal injection port of the seal frame in an interlayer insulating film for separating a thin film transistor or the like from a display pixel electrode. Since the grooves are provided, the liquid crystal injection time can be shortened and the liquid crystal injection time can be increased without increasing the number of injection holes, because the cross-sectional area of the injection holes is increased by the amount of the injection grooves. It is possible to achieve a large screen and high image quality without the need.
【００１０】請求項３の発明は、一対の基板の間に、シ
ール枠に囲まれた液晶層を設け、上記基板のうちの一方
の基板の液晶層側に、カラーフィルタが設けられ、この
カラーフィルタの表面に平坦性を改善するための透明な
平坦化膜が形成されたカラー液晶表示装置において、上
記シール枠に設けられた液晶注入口に連なる注入溝を、
上記平坦化膜に設けたことを特徴とする。According to a third aspect of the present invention, a liquid crystal layer surrounded by a seal frame is provided between a pair of substrates, and a color filter is provided on a liquid crystal layer side of one of the substrates. In a color liquid crystal display device in which a transparent flattening film for improving flatness is formed on the surface of the filter, an injection groove connected to a liquid crystal injection port provided in the seal frame is provided.
It is characterized in that it is provided on the flattening film.
【００１１】請求項３のカラー液晶表示装置では、一方
の基板の液晶層側のカラーフィルタの表面の平坦化膜
に、シール枠の液晶注入口に連なる注入溝が設けられて
いるので、注入口の数を増やさなくても、注入溝の分だ
け注入口の断面積が大きくなるから、液晶注入時間を短
縮することができ、また液晶注入時間を増大させずに大
画面化,高画質化を図ることができる。In the color liquid crystal display device according to the third aspect of the present invention, an injection groove connected to the liquid crystal injection port of the seal frame is provided in the flattening film on the surface of the color filter on the liquid crystal layer side of one of the substrates. Even if the number of liquid crystal is not increased, the cross-sectional area of the injection port is increased by the amount of the injection groove, so the liquid crystal injection time can be shortened, and a large screen and high image quality can be achieved without increasing the liquid crystal injection time. Can be planned.
【００１２】請求項４の発明は、一対のガラス基板の間
に、シール枠に囲まれた液晶層を設け、上記基板のうち
の一方の基板の液晶層側に、薄膜トランジスタおよびこ
の薄膜トランジスタを駆動するための配線パターンと表
示画素電極とを分離する透明樹脂からなる層間絶縁膜が
形成され、上記基板のうちの他方の基板の液晶層側に、
カラーフィルタが設けられ、このカラーフィルタの表面
に平坦性を改善するための透明な平坦化膜が形成された
薄膜トランジスタカラー液晶表示装置において、上記シ
ール枠に設けられた液晶注入口に連なる注入溝を、上記
層間絶縁膜および平坦化膜に設けたことを特徴とする。According to a fourth aspect of the present invention, a liquid crystal layer surrounded by a seal frame is provided between a pair of glass substrates, and the thin film transistor and the thin film transistor are driven on the liquid crystal layer side of one of the substrates. An interlayer insulating film made of a transparent resin for separating a wiring pattern and a display pixel electrode from each other is formed, and on the liquid crystal layer side of the other one of the substrates,
In a thin film transistor color liquid crystal display device in which a color filter is provided and a transparent flattening film for improving flatness is formed on the surface of the color filter, an injection groove connected to a liquid crystal injection port provided in the seal frame is formed. , Provided on the interlayer insulating film and the flattening film.
【００１３】請求項４の薄膜トランジスタカラー液晶表
示装置では、一方の基板の液晶層側の層間絶縁膜および
他方の基板の液晶層側の平坦化膜に、シール枠の液晶注
入口に連なる注入溝が設けられているので、注入口の数
を増やさなくても、これら注入溝の分だけ注入口の断面
積がより大きくなるから、液晶注入時間をより短縮する
ことができ、また液晶注入時間を増大させずに大画面
化,高画質化をより図ることができる。In the thin film transistor color liquid crystal display device according to the present invention, an injection groove connected to a liquid crystal injection port of the seal frame is formed in the interlayer insulating film on the liquid crystal layer side of one substrate and the flattening film on the liquid crystal layer side of the other substrate. Since the cross-sectional area of the injection port is increased by the size of these injection grooves without increasing the number of injection ports, the liquid crystal injection time can be further reduced and the liquid crystal injection time can be increased without increasing the number of injection ports It is possible to achieve a larger screen and higher image quality without doing so.
【００１４】請求項５の発明は、請求項１乃至４のいず
れか１つに記載の液晶表示装置において、上記注入溝
が、上記液晶注入口よりもさらに液晶層側に延在し、か
つ、幅方向に末広がりになっていることを特徴とする。According to a fifth aspect of the present invention, in the liquid crystal display device according to any one of the first to fourth aspects, the injection groove extends further toward the liquid crystal layer than the liquid crystal injection port, and It is characterized by widening in the width direction.
【００１５】請求項５の液晶表示装置では、シール枠の
液晶注入口に連なる注入溝が、液晶層側に幅方向に末広
がりになってさらに延在しているので、液晶の注入経路
の断面積が一層大きくなって、液晶注入時間を一層短縮
することができ、また液晶注入時間を増大させずに大画
面化,高画質化を一層図れるうえ、注入が容易化され
る。In the liquid crystal display device of the present invention, since the injection groove connected to the liquid crystal injection port of the seal frame extends further in the width direction toward the liquid crystal layer and further extends, the sectional area of the liquid crystal injection path is increased. Is further increased, so that the liquid crystal injection time can be further shortened, and a larger screen and a higher image quality can be achieved without increasing the liquid crystal injection time, and the injection is facilitated.
【００１６】[0016]
【実施例】以下、本発明を図示の実施の形態により詳細
に説明する。図１は、本発明の請求項１,２,５に記載の
液晶表示装置の一例の液晶注入口の詳細平面図および断
面図である。この液晶表示装置は、下側のガラス基板２
の構造が異なる点を除いて、図４,５で述べた従来のア
クティブマトリックス型液晶表示装置と同じ構成である
ので、同じ部材には同一番号を付している。上記液晶表
示装置の液晶注入口３５の付近は、図１(Ｂ)の詳細断面
図に示すように、図示しない対向電極をもつ上側のガラ
ス基板３１と、上面に透明アクリル樹脂からなる層間絶
縁膜３をもち,図示しない薄膜トランジスタ等が形成さ
れた下側のガラス基板２との間に、単一の液晶注入口３
５をもち,液晶を取り囲んで封止するシール枠としての
シール樹脂製の矩形枠３４が挟み込まれている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. FIG. 1 is a detailed plan view and a sectional view of a liquid crystal injection port of an example of the liquid crystal display device according to the first, second, and fifth aspects of the present invention. This liquid crystal display device has a lower glass substrate 2
Since the structure is the same as that of the conventional active matrix type liquid crystal display device described with reference to FIGS. 4 and 5 except that the structure is different, the same members are given the same numbers. As shown in the detailed sectional view of FIG. 1B, an upper glass substrate 31 having a counter electrode (not shown) and an interlayer insulating film made of a transparent acrylic resin on the upper surface are provided near the liquid crystal injection port 35 of the liquid crystal display device. A single liquid crystal injection port 3 between the lower glass substrate 2 having a thin film transistor (not shown) and the like.
5, a rectangular frame 34 made of a seal resin as a seal frame for surrounding and sealing the liquid crystal is sandwiched.
【００１７】上記層間絶縁膜３は、表示部の開口率を向
上させるべく、図示しない薄膜トランジスタおよびこれ
を駆動するゲート,ソース信号線と表示画素電極とを分
離するが、液晶注入口３５近傍の層間絶縁膜３は、図１
(Ａ)に破線で示すように、矩形枠３４の端部リブ３６,
中間リブ３７,横リブ３８等で作られる注入経路に亘っ
て除去され、液晶注入口３５よりもさらに液晶層側に延
在し,かつ幅方向に末広がりになった注入溝４が形成さ
れている。この注入溝４によって、図１(Ｂ)に示すよう
に液晶注入口の断面積が大きくなり、単位時間当たりの
液晶注入量が増えるとともに注入が容易化されることが
判る。アクティブマトリックス型液晶表示装置について
は、例えば出願人の先願特開平９−８０４１６号公報に
詳述されているが、上記注入溝４は、表示画素電極を薄
膜トランジスタのドレイン等に接続すべく層間絶縁膜３
にコンタクトホールを形成する際に、同時にパターニン
グ,エッチングして形成される。The interlayer insulating film 3 separates a thin film transistor (not shown), a gate and a source signal line for driving the thin film transistor, and a display pixel electrode from each other in order to improve the aperture ratio of the display portion. As shown in FIG.
(A), as shown by the broken lines, the end ribs 36 of the rectangular frame 34,
The injection groove 4 which is removed over the injection path formed by the intermediate rib 37, the lateral rib 38, and the like, extends further toward the liquid crystal layer than the liquid crystal injection port 35, and widens in the width direction is formed. . As shown in FIG. 1B, the injection groove 4 increases the cross-sectional area of the liquid crystal injection port, increases the liquid crystal injection amount per unit time, and facilitates the injection. The active matrix type liquid crystal display device is described in detail in, for example, Japanese Unexamined Patent Application Publication No. 9-80416 filed by the applicant. The injection groove 4 is provided with an interlayer insulating film to connect a display pixel electrode to a drain of a thin film transistor. Membrane 3
When a contact hole is formed, it is formed by patterning and etching at the same time.
【００１８】上記構成の液晶表示装置は、製造時に次の
ような効果をもたらす。図１の液晶表装置では、下側の
ガラス基板２の上面の層間絶縁膜３が、矩形枠３４の液
晶注入口３５近傍で除去されてこの注入口と一体化した
注入溝４をなしているので、液晶注入口の断面積が大き
くなり、製造時に単位時間当たりの液晶注入量が増加す
るとともに、注入が容易化される。従って、液晶注入時
間を従来より短縮でき、あるいは、液晶表示装置が大画
面になっても、注入口の数を増やすことなく液晶注入時
間を従来と同程度に抑えることができるとともに、注入
口の数が増えないので、その分、矩形枠のシール性能が
低下せず、取出し電極端子を多く配設できて、高画質化
にも寄与する。なお、上記実施の形態では、注入溝４の
ために下側のガラス基板２の層間絶縁膜３を除去した
が、本発明では、上側のガラス基板の下面または下側の
ガラス基板の上面の透明な樹脂絶縁膜を除去することも
できる。The liquid crystal display device having the above configuration has the following effects during manufacturing. In the liquid crystal display device of FIG. 1, the interlayer insulating film 3 on the upper surface of the lower glass substrate 2 is removed near the liquid crystal injection port 35 of the rectangular frame 34 to form an injection groove 4 integrated with this injection port. Therefore, the cross-sectional area of the liquid crystal injection port is increased, and the amount of liquid crystal injected per unit time during manufacturing is increased, and the injection is facilitated. Therefore, the liquid crystal injection time can be shortened as compared with the conventional case, or even if the liquid crystal display device has a large screen, the liquid crystal injection time can be suppressed to the same level as before without increasing the number of the injection ports, and the injection port can be reduced. Since the number does not increase, the sealing performance of the rectangular frame does not decrease by that much, and a large number of extraction electrode terminals can be arranged, which also contributes to high image quality. In the above-described embodiment, the interlayer insulating film 3 of the lower glass substrate 2 is removed for the injection groove 4. However, in the present invention, the transparent surface of the lower surface of the upper glass substrate or the upper surface of the lower glass substrate is removed. The unnecessary resin insulating film can also be removed.
【００１９】図２は、本発明の請求項３に記載の液晶表
示装置の一例の液晶注入口の詳細断面図である。この液
晶表示装置は、下側のガラス基板３２に代えて、上側の
ガラス基板１の平坦化膜に注入溝６を設けた点が図１の
ものと異なる。上記注入溝６は、図２の上側のガラス基
板１上に模式的に示したＲ,Ｇ,Ｂのカラーフィルタ７の
表面を平坦化するため設けられた透明な平坦化膜５を、
矩形枠３４で形成される液晶注入経路に亘って除去して
形成される。FIG. 2 is a detailed sectional view of a liquid crystal injection port of an example of the liquid crystal display device according to the third aspect of the present invention. This liquid crystal display device differs from that of FIG. 1 in that an injection groove 6 is provided in the flattening film of the upper glass substrate 1 instead of the lower glass substrate 32. The injection groove 6 is provided with a transparent flattening film 5 provided for flattening the surface of the R, G, B color filter 7 schematically shown on the upper glass substrate 1 in FIG.
It is formed by removing over the liquid crystal injection path formed by the rectangular frame 34.
【００２０】図２の液晶表装置でも、上側のガラス基板
１の上面の平坦化膜５が、矩形枠３４の液晶注入口３５
空間と一体化した注入溝６をなしているので、液晶注入
口の断面積が大きくなり、製造時に単位時間当たりの液
晶注入量が増加する。従って、液晶注入時間を従来より
短縮でき、あるいは、液晶常時装置が大画面になって
も、注入口の数を増やすことなく液晶注入時間を従来と
同程度に抑えることができるとともに、注入口の数が増
えないので、その分、矩形枠のシール性能が低下せず、
取出し電極端子を多く配設できて、高画質化にも寄与す
る。In the liquid crystal display device of FIG. 2, the flattening film 5 on the upper surface of the upper glass substrate 1 is
Since the injection groove 6 is integrated with the space, the cross-sectional area of the liquid crystal injection port is increased, and the amount of liquid crystal injected per unit time during manufacturing is increased. Therefore, the liquid crystal injection time can be shortened as compared with the conventional one, or even if the liquid crystal continuous device has a large screen, the liquid crystal injection time can be suppressed to the same level as before without increasing the number of the injection ports, and the number of the injection ports can be reduced. Since the number does not increase, the sealing performance of the rectangular frame does not decrease,
A large number of extraction electrode terminals can be provided, which contributes to high image quality.
【００２１】図３は、本発明の請求項４に記載の液晶表
示装置の一例の液晶注入口の詳細断面図である。この液
晶表示装置は、図１,図２の装置の両方の特徴をもつも
ので、下側のガラス基板２の上面の層間絶縁膜３および
上側のガラス基板１の下面の平坦化膜５に夫々注入溝
４,６を有する。FIG. 3 is a detailed sectional view of a liquid crystal injection port of an example of the liquid crystal display device according to the fourth aspect of the present invention. This liquid crystal display device has both features of the devices shown in FIGS. 1 and 2, and has an interlayer insulating film 3 on the upper surface of the lower glass substrate 2 and a flattening film 5 on the lower surface of the upper glass substrate 1, respectively. It has injection grooves 4 and 6.
【００２２】図３の液晶表示装置では、上側のガラス基
板１の平坦化膜５および下側のガラス基板２の層間絶縁
膜３が、夫々液晶注入口３５空間と一体化した注入溝
４,６を有するので、液晶注入口の断面積が一層大きく
なり、製造時に単位時間当たりの液晶注入量が一層増加
する。従って、液晶注入時間を従来より一層短縮でき、
あるいは、液晶常時装置が更に大画面になっても、注入
口の数を増やすことなく液晶注入時間を従来と同程度に
抑えることができるとともに、注入口の数が増えないの
で、その分、矩形枠のシール性能が低下せず、取出し電
極端子を多く配設できて、高画質化にも一層寄与する。In the liquid crystal display device shown in FIG. 3, the flattening film 5 of the upper glass substrate 1 and the interlayer insulating film 3 of the lower glass substrate 2 are formed by injection grooves 4 and 6 integrated with the space of the liquid crystal injection hole 35, respectively. , The cross-sectional area of the liquid crystal injection port is further increased, and the amount of liquid crystal injected per unit time during manufacturing is further increased. Therefore, the liquid crystal injection time can be further reduced than before,
Alternatively, even if the liquid crystal continuous device has a larger screen, the liquid crystal injection time can be suppressed to the same level as before without increasing the number of injection ports, and the number of injection ports does not increase. The sealing performance of the frame does not decrease, and a large number of extraction electrode terminals can be provided, which further contributes to high image quality.
【００２３】[0023]
【発明の効果】以上の説明で明らかなように、請求項１
の液晶表示装置は、少なくとも一方の基板の液晶層側の
樹脂絶縁膜に、シール枠の液晶注入口に連なる注入溝が
設けられているので、注入口の数を増やさなくても、注
入溝の分だけ注入口の断面積が大きくなって、液晶注入
時間を短縮することができ、また液晶注入時間を増大さ
せずに大画面化,高画質化を図ることができる。As is apparent from the above description, claim 1
In the liquid crystal display device, an injection groove connected to the liquid crystal injection port of the seal frame is provided in the resin insulating film on the liquid crystal layer side of at least one substrate, so that the injection groove can be formed without increasing the number of the injection ports. The liquid crystal injection time can be shortened by increasing the cross-sectional area of the injection port, and a larger screen and higher image quality can be achieved without increasing the liquid crystal injection time.
【００２４】請求項２のアクティブマトリックス型液晶
表示装置は、一方の基板の液晶層側に設けられ、薄膜ト
ランジスタ等と表示画素電極とを分離する層間絶縁膜
に、シール枠の液晶注入口に連なる注入溝が設けられて
いるので、注入口の数を増やさなくても、注入溝の分だ
け注入口の断面積が大きくなるから、液晶注入時間を短
縮することができ、また液晶注入時間を増大させずに大
画面化,高画質化を図ることができる。According to a second aspect of the present invention, there is provided an active matrix type liquid crystal display device which is provided on a liquid crystal layer side of one substrate and is connected to a liquid crystal injection port of a seal frame in an interlayer insulating film for separating a thin film transistor or the like from a display pixel electrode. Since the grooves are provided, the liquid crystal injection time can be shortened and the liquid crystal injection time can be increased without increasing the number of injection holes, because the cross-sectional area of the injection holes is increased by the amount of the injection grooves. It is possible to achieve a large screen and high image quality without the need.
【００２５】請求項３のカラー液晶表示装置は、一方の
基板の液晶層側のカラーフィルタの表面の平坦化膜に、
シール枠の液晶注入口に連なる注入溝が設けられている
ので、注入口の数を増やさなくても、注入溝の分だけ注
入口の断面積が大きくなるから、液晶注入時間を短縮す
ることができ、また液晶注入時間を増大させずに大画面
化,高画質化を図ることができる。According to a third aspect of the present invention, the flattening film on the surface of the color filter on the liquid crystal layer side of one of the substrates is
Since the injection groove connected to the liquid crystal injection port of the seal frame is provided, the cross-sectional area of the injection port is increased by the injection groove without increasing the number of injection ports, so that the liquid crystal injection time can be shortened. In addition, a large screen and high image quality can be achieved without increasing the liquid crystal injection time.
【００２６】請求項４の薄膜トランジスタカラー液晶表
示装置は、一方の基板の液晶層側の層間絶縁膜および他
方の基板の液晶層側の平坦化膜に、シール枠の液晶注入
口に連なる注入溝が設けられているので、注入口の数を
増やさなくても、これら注入溝の分だけ注入口の断面積
が一層大きくなるから、液晶注入時間を一層短縮するこ
とができ、また液晶注入時間を増大させずに大画面化,
高画質化を一層図ることができる。In a thin film transistor color liquid crystal display device according to a fourth aspect of the present invention, an injection groove connected to a liquid crystal injection port of a seal frame is formed in the interlayer insulating film on the liquid crystal layer side of one substrate and the flattening film on the liquid crystal layer side of the other substrate. Since the injection port is provided, even if the number of injection ports is not increased, the cross-sectional area of the injection port is further increased by the size of the injection groove, so that the liquid crystal injection time can be further reduced and the liquid crystal injection time can be increased. Large screen without letting it go,
Higher image quality can be further achieved.
【００２７】請求項５の液晶表示装置は、シール枠の液
晶注入口に連なる注入溝が、液晶層側に幅方向に末広が
りになってさらに延在しているので、液晶の注入経路の
断面積が一層大きくなって、液晶注入時間を一層短縮す
ることができ、また液晶注入時間を増大させずに大画面
化,高画質化を一層図れるうえ、注入が容易化される。In the liquid crystal display device according to the fifth aspect, the injection groove connected to the liquid crystal injection port of the seal frame extends further in the width direction toward the liquid crystal layer and further extends. Is further increased, so that the liquid crystal injection time can be further shortened, and a larger screen and a higher image quality can be achieved without increasing the liquid crystal injection time, and the injection is facilitated.
【図１】 本発明の請求項１,２,５に記載の液晶表示装
置の一例の液晶注入口の詳細平面図および断面図であ
る。FIG. 1 is a detailed plan view and a sectional view of a liquid crystal injection port of an example of a liquid crystal display device according to the first, second, and fifth aspects of the present invention.
【図２】 本発明の請求項３に記載の液晶表示装置の一
例の液晶注入口の詳細断面図である。FIG. 2 is a detailed sectional view of a liquid crystal injection port of an example of the liquid crystal display device according to claim 3 of the present invention.
【図３】 本発明の請求項４に記載の液晶表示装置の一
例の液晶注入口の詳細断面図である。FIG. 3 is a detailed cross-sectional view of a liquid crystal injection port of an example of the liquid crystal display device according to claim 4 of the present invention.
【図４】 従来の液晶表示装置の液晶を囲い込む矩形枠
の平面図である。FIG. 4 is a plan view of a rectangular frame surrounding a liquid crystal of a conventional liquid crystal display device.
【図５】 図４の矩形枠の液晶注入口の詳細平面図およ
び断面図である。5A and 5B are a detailed plan view and a cross-sectional view of a liquid crystal injection port having a rectangular frame in FIG.
１…上側のガラス基板、２…下側のガラス基板、３…層
間絶縁膜、４…注入溝、５…平坦化膜、６…注入溝、７
…カラーフィルタ、３１…上側のガラス基板、３２…下
側のガラス基板、３３…層間絶縁膜、３４…矩形枠、３
５…液晶注入口、３６…端部リブ、３７…中間リブ、３
８…横リブ。Reference Signs List 1 upper glass substrate, 2 lower glass substrate, 3 interlayer insulating film, 4 injection groove, 5 flattening film, 6 injection groove, 7
.., Color filter, 31 upper glass substrate, 32 lower glass substrate, 33 interlayer insulating film, 34 rectangular frame, 3
5 ... liquid crystal inlet, 36 ... end rib, 37 ... intermediate rib, 3
8 ... horizontal rib.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０４Ｎ 9/30 Ｇ０２Ｆ 1/136 ５００ Ｆターム(参考） 2H089 LA21 LA22 LA28 LA29 NA19 QA12 TA09 TA12 2H091 FA02Y GA09 GA13 GA16 LA12 2H092 KB25 KB26 NA27 PA04 PA08 5C058 AA06 AB03 AB04 BA23 BA35 5C060 BA03 BA04 BA09 BC01 DA04──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) H04N 9/30 G02F 1/136 500 F term (Reference) 2H089 LA21 LA22 LA28 LA29 NA19 QA12 TA09 TA12 2H091 FA02Y GA09 GA13 GA16 LA12 2H092 KB25 KB26 NA27 PA04 PA08 5C058 AA06 AB03 AB04 BA23 BA35 5C060 BA03 BA04 BA09 BC01 DA04
Claims (5)
液晶層を設け、上記基板のうちの少なくとも一方の基板
の液晶層側に透明な樹脂絶縁膜が形成された液晶表示装
置において、 上記シール枠に設けられた液晶注入口に連なる注入溝
を、上記樹脂絶縁膜に設けたことを特徴とする液晶表示
装置。1. A liquid crystal display device in which a liquid crystal layer surrounded by a seal frame is provided between a pair of substrates, and a transparent resin insulating film is formed on a liquid crystal layer side of at least one of the substrates. A liquid crystal display device, wherein an injection groove connected to a liquid crystal injection port provided in the seal frame is provided in the resin insulating film.
液晶層を設け、上記基板のうちの一方の基板の液晶層側
に、薄膜トランジスタおよびこの薄膜トランジスタを駆
動するための配線パターンと表示画素電極とを分離する
透明樹脂からなる層間絶縁膜が形成されたアクティブマ
トリックス型液晶表示装置において、上記シール枠に設
けられた液晶注入口に連なる注入溝を、上記層間絶縁膜
に設けたことを特徴とするアクティブマトリックス型液
晶表示装置。2. A liquid crystal layer surrounded by a seal frame is provided between a pair of substrates, and a thin film transistor and a wiring pattern for driving the thin film transistor are displayed on a liquid crystal layer side of one of the substrates. In an active matrix type liquid crystal display device in which an interlayer insulating film made of a transparent resin separating a pixel electrode is formed, an injection groove connected to a liquid crystal injection port provided in the seal frame is provided in the interlayer insulating film. Active matrix liquid crystal display device.
液晶層を設け、上記基板のうちの一方の基板の液晶層側
に、カラーフィルタが設けられ、このカラーフィルタの
表面に平坦性を改善するための透明な平坦化膜が形成さ
れたカラー液晶表示装置において、 上記シール枠に設けられた液晶注入口に連なる注入溝
を、上記平坦化膜に設けたことを特徴とするカラー液晶
表示装置。3. A liquid crystal layer surrounded by a seal frame is provided between a pair of substrates, a color filter is provided on one of the substrates, and a color filter is provided on a surface of the color filter. A color liquid crystal display device provided with a transparent flattening film for improving the liquid crystal display, wherein an injection groove connected to a liquid crystal injection port provided in the seal frame is provided in the flattening film. Liquid crystal display.
まれた液晶層を設け、上記基板のうちの一方の基板の液
晶層側に、薄膜トランジスタおよびこの薄膜トランジス
タを駆動するための配線パターンと表示画素電極とを分
離する透明樹脂からなる層間絶縁膜が形成され、上記基
板のうちの他方の基板の液晶層側に、カラーフィルタが
設けられ、このカラーフィルタの表面に平坦性を改善す
るための透明な平坦化膜が形成された薄膜トランジスタ
カラー液晶表示装置において、 上記シール枠に設けられた液晶注入口に連なる注入溝
を、上記層間絶縁膜および平坦化膜に設けたことを特徴
とする薄膜トランジスタカラー液晶表示装置。4. A liquid crystal layer surrounded by a seal frame is provided between a pair of glass substrates, and a thin film transistor and a wiring pattern for driving the thin film transistor are provided on one of the substrates on the liquid crystal layer side. An interlayer insulating film made of a transparent resin separating the display pixel electrode is formed, and a color filter is provided on the liquid crystal layer side of the other of the above-described substrates. A thin film transistor color liquid crystal display device having a transparent flattening film formed thereon, wherein an injection groove connected to a liquid crystal injection port provided in the seal frame is provided in the interlayer insulating film and the flattening film. Color liquid crystal display.
液晶表示装置において、上記注入溝は、上記液晶注入口
よりもさらに液晶層側に延在し、かつ、幅方向に末広が
りになっていることを特徴とする液晶表示装置。5. The liquid crystal display device according to claim 1, wherein the injection groove extends further toward the liquid crystal layer than the liquid crystal injection port, and diverges in the width direction. A liquid crystal display device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03276499A JP3663068B2 (en) | 1999-02-10 | 1999-02-10 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03276499A JP3663068B2 (en) | 1999-02-10 | 1999-02-10 | Liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000231112A true JP2000231112A (en) | 2000-08-22 |
| JP3663068B2 JP3663068B2 (en) | 2005-06-22 |
Family
ID=12367921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03276499A Expired - Fee Related JP3663068B2 (en) | 1999-02-10 | 1999-02-10 | Liquid crystal display |
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| Country | Link |
|---|---|
| JP (1) | JP3663068B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7388643B2 (en) | 2001-10-11 | 2008-06-17 | Hitachi, Ltd. | Liquid crystal display device |
| JP2010145897A (en) * | 2008-12-22 | 2010-07-01 | Epson Imaging Devices Corp | Liquid crystal display device |
| US20120146886A1 (en) * | 2010-12-13 | 2012-06-14 | Sony Corporation | Display apparatus and electronic apparatus |
| CN104035244A (en) * | 2014-06-24 | 2014-09-10 | 成都天马微电子有限公司 | Liquid-crystal display panel and manufacturing method thereof |
| CN104678661A (en) * | 2013-11-29 | 2015-06-03 | 信利半导体有限公司 | Liquid crystal display device |
-
1999
- 1999-02-10 JP JP03276499A patent/JP3663068B2/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7388643B2 (en) | 2001-10-11 | 2008-06-17 | Hitachi, Ltd. | Liquid crystal display device |
| US7796231B2 (en) | 2001-10-11 | 2010-09-14 | Hitachi, Ltd. | Liquid crystal display device with sealing material having spacer therein |
| JP2010145897A (en) * | 2008-12-22 | 2010-07-01 | Epson Imaging Devices Corp | Liquid crystal display device |
| US9608215B2 (en) * | 2010-12-13 | 2017-03-28 | Joled Inc. | Display apparatus and electronic apparatus |
| US20120146886A1 (en) * | 2010-12-13 | 2012-06-14 | Sony Corporation | Display apparatus and electronic apparatus |
| US9755168B2 (en) | 2010-12-13 | 2017-09-05 | Joled Inc. | Display apparatus and electronic apparatus |
| US10069092B2 (en) | 2010-12-13 | 2018-09-04 | Joled Inc. | Display apparatus and electronic apparatus |
| US10276814B2 (en) | 2010-12-13 | 2019-04-30 | Joled Inc. | Display apparatus and electronic apparatus |
| US10516122B2 (en) | 2010-12-13 | 2019-12-24 | Joled Inc. | Display apparatus and electronic apparatus |
| US10784453B2 (en) | 2010-12-13 | 2020-09-22 | Joled Inc. | Display apparatus and electronic apparatus |
| US11239436B2 (en) | 2010-12-13 | 2022-02-01 | Joled Inc. | Display apparatus and electronic apparatus |
| CN104678661A (en) * | 2013-11-29 | 2015-06-03 | 信利半导体有限公司 | Liquid crystal display device |
| CN104035244A (en) * | 2014-06-24 | 2014-09-10 | 成都天马微电子有限公司 | Liquid-crystal display panel and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3663068B2 (en) | 2005-06-22 |
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