JPS63179324A - Liquid crystal display panel - Google Patents
Liquid crystal display panelInfo
- Publication number
- JPS63179324A JPS63179324A JP62011552A JP1155287A JPS63179324A JP S63179324 A JPS63179324 A JP S63179324A JP 62011552 A JP62011552 A JP 62011552A JP 1155287 A JP1155287 A JP 1155287A JP S63179324 A JPS63179324 A JP S63179324A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- display panel
- color
- crystal display
- panel
- 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.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 50
- 210000002858 crystal cell Anatomy 0.000 claims abstract description 3
- 239000000758 substrate Substances 0.000 abstract description 27
- 238000002347 injection Methods 0.000 abstract description 8
- 239000007924 injection Substances 0.000 abstract description 8
- 235000019646 color tone Nutrition 0.000 abstract 3
- 239000003086 colorant Substances 0.000 abstract 2
- 238000004040 coloring Methods 0.000 abstract 2
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000002845 discoloration Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000005262 ferroelectric liquid crystals (FLCs) Substances 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【発明の詳細な説明】
〔概要〕
本発明はカラータイプ、或いはモノクロームタイプ等の
液晶表示パネルにおいて、対向基板間距離（液晶層の厚
さ等）の不均一性や液晶注入口近傍領域での配向膜面の
異変等に起因して生じる色むらを解消するため、該表示
パネルの表面、若しくは裏面に、色むらに対応した色つ
きフィルムを貼設することより、該パネル全面にわたり
色むらのない均一な色調に補正し得るようにしたもので
ある。[Detailed Description of the Invention] [Summary] The present invention solves the problem of unevenness in the distance between opposing substrates (thickness of the liquid crystal layer, etc.) and in the area near the liquid crystal injection port in color type or monochrome type liquid crystal display panels. In order to eliminate color unevenness caused by abnormalities on the surface of the alignment film, a colored film corresponding to color unevenness is pasted on the front or back side of the display panel, thereby eliminating color unevenness over the entire surface of the panel. This makes it possible to correct the color tone to a uniform color tone.
本発明は液晶表示パネルに係り、特にＴＮ型のカラー液
晶パネル、或いは強誘電性液晶パネルの色むらを簡便に
補正したパネル構造に関するものである。The present invention relates to a liquid crystal display panel, and particularly to a panel structure in which color unevenness in a TN type color liquid crystal panel or a ferroelectric liquid crystal panel is easily corrected.
ＴＮ型のカラー液晶パネル、或いは強誘電性液晶パネル
等の各種液晶表示パネルにおいては、色むらのないもの
が要求されるが、液晶パネルの液晶注入口付近の領域で
の配向膜面の異変などや液晶層の厚さの変動等によって
色むらが生じる傾向がある。このため、そのような色む
らを簡便に、かつ安価に色調補正する構成が必要とされ
ている。Various liquid crystal display panels such as TN-type color liquid crystal panels or ferroelectric liquid crystal panels are required to have no color unevenness, but there are problems such as abnormalities in the alignment film surface in the area near the liquid crystal injection port of the liquid crystal panel. There is a tendency for color unevenness to occur due to changes in the thickness of the liquid crystal layer, etc. Therefore, there is a need for a configuration that can easily and inexpensively correct color tone for such color unevenness.
従来のＴＮ型のカラー液晶パネルは第３図に示すように
、例えば赤色フィルタＲ２緑色フィルタＧ、青色フィル
タＢからなる３色のフィルタが繰り返して順に配置され
たその上に、配向膜３により被覆された透明電極２が配
設された上側透明基板１と、配向膜６により被覆された
透明電極５が配設された下側透明基板４とがスペーサ７
を介して対向配置され、その内幕板１．４間にＴＮ型液
晶８が充填されている。As shown in FIG. 3, a conventional TN type color liquid crystal panel has three color filters, for example, a red filter R2, a green filter G, and a blue filter B, which are repeatedly arranged in order and covered with an alignment film 3. An upper transparent substrate 1 on which a transparent electrode 2 is disposed, and a lower transparent substrate 4 on which a transparent electrode 5 covered with an alignment film 6 is disposed are separated by a spacer 7.
TN type liquid crystal 8 is filled between the inner curtain plates 1.4.
そして表示動作に際しては当該表示パネルの上側、或い
は下側から光を入射させてコントラスト良く表示を行っ
ている。During the display operation, light is incident from above or below the display panel to provide a display with good contrast.
尚、上記構成の３色のフィルタＲ，Ｇ、Ｂは、有機色素
を含むゼラチン膜等からなり、透過する光の強度が色に
よって異なることから、第４図の概念図に示すように上
側透明基板１に配置された前記３色のフィルタＲ，Ｇ、
Ｂの厚さを異ならせて、その領域での基板間距離、即ち
厚さの異なる各色フィルタＲ，Ｇ、Ｂと下側透明基板４
間の距ｉ４ｄ＊、ｄｃ、ｄ＊を制御することによって、
色調の違いを調整している。The three color filters R, G, and B of the above configuration are made of gelatin films containing organic dyes, and the intensity of transmitted light differs depending on the color. The three color filters R and G arranged on the substrate 1,
By making the thickness of B different, the distance between the substrates in that area, that is, each color filter R, G, B with different thickness and the lower transparent substrate 4.
By controlling the distances i4d*, dc, d* between
Adjusting the difference in color tone.
ところで上記した従来のＴＮ型カラー液晶表示パネルで
は、上側透明基板１に前記各厚さの異なる３色のフィル
タＲ，Ｇ、Ｂを配設した後、該上側透明基板ｌと下側透
明基板４とを液晶充填用空間を介して封着しているため
、その封着により対向基板１． ４間の距離が不均一に
なると、色むらが発生ずる問題があり、この色むらを解
消させるための該基板間距離の変動に対応して色調を調
整することが困難であった。By the way, in the above-described conventional TN type color liquid crystal display panel, after the three color filters R, G, and B having different thicknesses are disposed on the upper transparent substrate 1, the upper transparent substrate 1 and the lower transparent substrate 4 are arranged. are sealed together through the liquid crystal filling space, so that the opposite substrate 1. If the distance between the two substrates becomes uneven, there is a problem that color unevenness occurs, and it is difficult to adjust the color tone in response to the variation in the distance between the substrates in order to eliminate this color unevenness.
またこのような現象は、当該ＴＮ型カラー液晶表示パネ
ルの場合の他に、例えば強誘電性液晶表示パネル等にお
いても液晶層の厚さのバラツキにより色づきが起こると
いう問題があった。更にこれらの各液晶パネルにおいて
は、パネル内部に液晶を充填した後の、所謂液晶を注入
した注入口近傍の領域に配向膜面の異変等による色むら
が発生する欠点があり、かかる現象の解消を困難にして
いる。In addition to the TN type color liquid crystal display panel, this phenomenon also poses a problem in that, for example, ferroelectric liquid crystal display panels and the like also suffer from discoloration due to variations in the thickness of the liquid crystal layer. Furthermore, each of these liquid crystal panels has the disadvantage that after the inside of the panel is filled with liquid crystal, color unevenness occurs in the area near the injection port where the liquid crystal is injected due to abnormalities in the surface of the alignment film, etc., and it is necessary to eliminate this phenomenon. making it difficult.
本発明は上記従来の実情に鑑み、各種液晶パネルにおけ
る基板間距離の変動や液晶注入口近傍領域での色むら、
或いは液晶層の厚さのバラツキに起因する色づき等を、
簡便に均一な色調に補正可能な新規な液晶表示パネルを
提供することを目的とするものである。The present invention has been developed in view of the above-mentioned conventional circumstances, and has been developed to prevent variations in the distance between substrates in various liquid crystal panels and color unevenness in the area near the liquid crystal injection port.
Or discoloration caused by variations in the thickness of the liquid crystal layer, etc.
It is an object of the present invention to provide a novel liquid crystal display panel that can be easily corrected to have a uniform color tone.
本発明は上記目的を達成するため、液晶表示パネルの表
面に、該パネルの色むらを、該色むらに合わせて均一な
色調に補正す、る色つきフィルムを貼設したパネル構成
とする。In order to achieve the above object, the present invention has a panel configuration in which a colored film is pasted on the surface of a liquid crystal display panel to correct the color unevenness of the panel to a uniform color tone in accordance with the color unevenness.
本発明の液晶表示パネルでは、基板間距離の変動や液晶
注入口近傍領域に発生する色むらの領域での透過光量が
小さくなることから、該色むらがある液晶パネルの表面
に、該色むらの発生領域では透過光量が大きく、その他
の領域では少ない透過光量となるような色つきフィルム
を貼設した構成とすることにより、パネル全面にわたっ
て透過光量が均一化され、色調が補正されることから色
むらが解消される。In the liquid crystal display panel of the present invention, since the amount of transmitted light is small in the area of color unevenness that occurs due to variations in the distance between the substrates and the area near the liquid crystal injection port, the color unevenness occurs on the surface of the liquid crystal panel where the color unevenness is present. By attaching a colored film that transmits a large amount of light in the areas where it occurs and decreases the amount of transmitted light in other areas, the amount of transmitted light is made uniform over the entire panel, and the color tone is corrected. Color unevenness is eliminated.
以下図面を用いて本発明の実施例について詳細に説明す
る。Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は本発明に係る液晶表示パネルの一実施例を示す
平面図、第２図はその側面図である。FIG. 1 is a plan view showing an embodiment of a liquid crystal display panel according to the present invention, and FIG. 2 is a side view thereof.
これら両図において、２１はＴＮ型カラー液晶表示パネ
ル、１は上側透明基板、４は下側透明基板、２２は封着
シール部であり、その間に従来と同様に図示しない各厚
さの異なる３色のフィルタＲ，Ｇ。In both of these figures, 21 is a TN type color liquid crystal display panel, 1 is an upper transparent substrate, 4 is a lower transparent substrate, and 22 is a sealing part, between which, as in the conventional case, three parts having different thicknesses (not shown) are provided. Color filters R and G.
ＢとＴＮ型液晶セルが構成されている。B and a TN type liquid crystal cell are constructed.
そして例えば上側透明基板ｌの表面には、色つきフィル
ム２３が貼設されている。For example, a colored film 23 is pasted on the surface of the upper transparent substrate l.
該色つきフィルム２３としては、第１図に示すように上
側透明基板１面に生じた基板間距離の変動による色むら
Ａ（鎖線で囲まれている領域）や液晶注入口近傍領域に
発生した色むらＢ（鎖線で囲まれている領域）が白色表
示、または無表示状態で黒っぽく見え、しかもこれら色
むらＡ、Ｂの領域での透過光量が小さいことから、該色
むらＡ及びＢ対応領域では透過光量が大きく、かつその
他の領域では少ない透過光量となるようにして、パネル
全面にわたって均一な透過光量が得られる、例えば灰色
の色つきフィルムを用いている。As shown in FIG. 1, the colored film 23 includes color unevenness A (area surrounded by a chain line) caused by variations in the distance between the substrates on one surface of the upper transparent substrate and an area near the liquid crystal injection port. Color unevenness B (area surrounded by a chain line) appears white or black when not displayed, and since the amount of transmitted light in these color unevenness A and B areas is small, the area corresponding to color unevenness A and B is In this case, a colored film, for example, gray, is used so that the amount of transmitted light is large and the amount of transmitted light is small in other areas, so that a uniform amount of transmitted light can be obtained over the entire surface of the panel.
従って、かかる構成によって色調が補正されることから
色むらが解消される。Therefore, since the color tone is corrected by this configuration, color unevenness is eliminated.
尚、この色つきフィルム２３は必要に応じて当該パネル
２１の下側透明基板４の表面に貼設してもよ（、同様の
効果が得られる。Note that this colored film 23 may be attached to the surface of the lower transparent substrate 4 of the panel 21 if necessary (the same effect can be obtained).
更に他の例として液晶層の厚さのバラツキにより黄色な
どの色づきが起こる強誘電性液晶表示パネルなどにおい
ては、その上側透明基板、または下側透明基板の表面に
、例えば黄色と合わせて補色となる青色の色つきフィル
ムを貼設したパネル構成とすることにより、前記色づき
を容易に解消することができる。As another example, in a ferroelectric liquid crystal display panel, which is colored yellow or the like due to variations in the thickness of the liquid crystal layer, a complementary color may be applied to the surface of the upper transparent substrate or the lower transparent substrate. By configuring the panel to have a blue colored film attached thereto, the discoloration can be easily eliminated.
以上の説明から明らかなように、本発明に係る液晶表示
パネルによれば、カラー液晶表示パネルにおける基板間
距離の変動や液晶注入口近傍領域での色むら、或いはモ
ノクロームタイプの液晶表示パネルでの液晶層の厚さの
バラツキに起因する色づき等を簡便に、かつ安価に均一
な色調に補正することが可能となる優れた利点を有し、
色むら、色づきによるパネル製造歩留まりの低下を防止
することができる等、実用上顕著なる効果を奏する。As is clear from the above description, according to the liquid crystal display panel according to the present invention, variations in the distance between the substrates in a color liquid crystal display panel, color unevenness in the area near the liquid crystal injection port, or monochrome type liquid crystal display panels can be avoided. It has the excellent advantage of being able to easily and inexpensively correct discoloration caused by variations in the thickness of the liquid crystal layer to a uniform color tone.
This has significant practical effects, such as being able to prevent a decrease in panel manufacturing yield due to color unevenness and discoloration.
第１図は本発明に係る液晶表示パネルの一実施例を示す
平面図、
第２図は第１図に示す液晶表示パネルの側面図、第３図
は従来のＴＮ型カラー液晶表示パネルを説明するための
要部断面図、
第４図は従来のＴＮ型カラー液晶表示パネルの色調調整
構造を説明するための概念図
である。
第１図及び第２図において、
１は上側透明基板、４は下側透明基板、２１はＴＮ型カ
ラー液晶表示パネル、２２は封着シール部、２３は色つ
きフィルム、Ａ。
ｆｆｌ！＃ｉ％ｔｆｆｉｌｌｆ７３ｔｌＳＪｆｒｉ［第
３図Fig. 1 is a plan view showing an embodiment of the liquid crystal display panel according to the present invention, Fig. 2 is a side view of the liquid crystal display panel shown in Fig. 1, and Fig. 3 illustrates a conventional TN type color liquid crystal display panel. FIG. 4 is a conceptual diagram for explaining the color tone adjustment structure of a conventional TN type color liquid crystal display panel. 1 and 2, 1 is an upper transparent substrate, 4 is a lower transparent substrate, 21 is a TN type color liquid crystal display panel, 22 is a sealing part, 23 is a colored film, and A. ffl! #i%tffillf73tlSJfri [Fig.
Claims (1)
面、若しくは裏面に、該パネル（２１）の色むらを均一
な色調に補正する色つきフィルム（２３）を貼設してな
ることを特徴とする液晶表示パネル。A colored film (23) is pasted on the front or back side of a liquid crystal display panel (21) having a plurality of liquid crystal cells to correct uneven color of the panel (21) to a uniform color tone. LCD display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62011552A JPS63179324A (en) | 1987-01-20 | 1987-01-20 | Liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62011552A JPS63179324A (en) | 1987-01-20 | 1987-01-20 | Liquid crystal display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63179324A true JPS63179324A (en) | 1988-07-23 |
Family
ID=11781110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62011552A Pending JPS63179324A (en) | 1987-01-20 | 1987-01-20 | Liquid crystal display panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63179324A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006091422A (en) * | 2004-09-24 | 2006-04-06 | Fuji Photo Film Co Ltd | Display device in which hue of regular reflected light color is controlled |
| EP1805745A1 (en) * | 2004-10-25 | 2007-07-11 | Barco NV | Optical correction for high uniformity panel lights |
-
1987
- 1987-01-20 JP JP62011552A patent/JPS63179324A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006091422A (en) * | 2004-09-24 | 2006-04-06 | Fuji Photo Film Co Ltd | Display device in which hue of regular reflected light color is controlled |
| EP1805745A1 (en) * | 2004-10-25 | 2007-07-11 | Barco NV | Optical correction for high uniformity panel lights |
| JP2008518388A (en) * | 2004-10-25 | 2008-05-29 | バルコ・ナムローゼ・フエンノートシャップ | Optical correction of highly uniform panel light |
| EP1805745B1 (en) * | 2004-10-25 | 2014-03-19 | Barco NV | Optical correction for high uniformity panel lights |
| US9070316B2 (en) | 2004-10-25 | 2015-06-30 | Barco Nv | Optical correction for high uniformity panel lights |
| US9384710B2 (en) | 2004-10-25 | 2016-07-05 | Barco N. V. | Optical correction for high uniformity panel lights |
| US9916795B2 (en) | 2004-10-25 | 2018-03-13 | Barco N.V | Optical correction for high uniformity panel lights |
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