JPS58117586A - Liquid crystal display element - Google Patents
Liquid crystal display elementInfo
- Publication number
- JPS58117586A JPS58117586A JP36382A JP36382A JPS58117586A JP S58117586 A JPS58117586 A JP S58117586A JP 36382 A JP36382 A JP 36382A JP 36382 A JP36382 A JP 36382A JP S58117586 A JPS58117586 A JP S58117586A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- transparent conductive
- resistance
- conductive film
- crystal display
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は液晶表示素子に係り、特に薄膜透明導電膜の引
き回し抵抗の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid crystal display element, and more particularly to improving the routing resistance of a thin transparent conductive film.
従来の薄膜透明導電膜の引き回し抵抗は、ライン毎に異
なり、一様になっていなかったので、ライン毎の引き回
し抵抗分の違いが輝度ムラになって現われ、ライン毎に
コントラストの違いが現われるというような欠点があっ
た。The routing resistance of conventional thin transparent conductive films differs from line to line and is not uniform, so differences in routing resistance from line to line appear as uneven brightness, and differences in contrast appear from line to line. There were some drawbacks.
本発明の目的は、薄膜透明導電膜の引き回し抵抗をライ
ン毎で等しくしたことによって、従来抵抗外の違いによ
って起っていた輝度ムラをなくすことにある。An object of the present invention is to eliminate uneven brightness that conventionally occurs due to differences other than resistance by equalizing the wiring resistance of the thin transparent conductive film for each line.
以下、本発明の一実施例を図により説明する。Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
実線は上板電極部の走査側電極１と走査側上板電極引き
回し部２を、破線は下板電極部の信号側電し、端部より
電源を供給している。このため、走査側電極１は、上板
透明導電膜と下板透明導電膜の導通を得るためＩこ端部
の位置に導電性Ａｇペースト５を配置する。また、この
走査側電極１はＡｇペースト５を通して、信号側電極３
が配置する下板内で引き回し部４を通って各端子までの
びている。信号側電極３は図の各ライン毎で端子部まで
の長さ太さが一様で、その結果抵抗分は等しくなる。と
ころが、走査側電極ｌは図からも明らかなように、引き
回し部２．４の透明導電膜は、長さが異なり、引き回し
抵抗分は等しくならない。The solid line connects the scanning side electrode 1 and the scanning side upper electrode lead-out section 2 of the upper plate electrode section, and the broken line connects the signal side of the lower plate electrode section, and power is supplied from the end. For this reason, in the scanning side electrode 1, a conductive Ag paste 5 is placed at the end of the electrode 1 in order to obtain conduction between the upper transparent conductive film and the lower transparent conductive film. In addition, this scanning side electrode 1 is passed through the Ag paste 5 to the signal side electrode 3.
It extends to each terminal through the lead-out portion 4 within the lower plate where it is placed. The length and thickness of the signal side electrode 3 up to the terminal portion are uniform for each line in the figure, and as a result, the resistance is equal. However, as is clear from the figure, the lengths of the transparent conductive films of the routing portions 2.4 of the scanning side electrodes 1 are different, and the routing resistances are not equal.
ところで、透明導電膜の抵抗は以下の式に示すような値
が得られる。By the way, the resistance of the transparent conductive film has a value as shown in the following formula.
Ｒ＝「−
Ｒ：抵抗（Ω）
「：透明導電膜の抵抗常数（Ω）
−ｅ：引き同し透明導電膜の長さ
ａ：引き回し透明導電膜の幅
したがって、抵抗Ｒは引き回し透明導電膜の長さと幅で
決定され、長さの大きいものは幅を大きくし、長さの小
さいものは幅を小さくする。という計算を行ない、図中
、引き回し部２．４の透明導電膜の長さの異なるものは
、幅を調整することによって、この部分の抵抗値を全て
のラインで等しくすることができる。R = "- R: Resistance (Ω) ": Resistance constant of the transparent conductive film (Ω) -e: Length of the transparent conductive film in the lead a: Width of the transparent conductive film in the lead, therefore, resistance R is the transparent conductive film in the lead It is determined by the length and width of the transparent conductive film of the leading part 2.4 in the figure. By adjusting the width, the resistance value of this part can be made equal for all lines.
以上のようにして、走査側と信号側の透明導電膜の引き
回し抵抗をそれぞれのラインで等しくすることができた
。In the manner described above, the routing resistance of the transparent conductive film on the scanning side and the signal side could be made equal for each line.
本発明ｌこよれば、透明導電膜の信号側、走査側の引き
回し抵抗を端子部からそれぞれ等しくしたことによって
、抵抗分、容量分による波形なまりが等しくなり、この
結果として輝度ムラをなくす効果がある。例として、走
査側の引き回し抵抗にバラツキがあると、グラフィック
液晶表示素子等で走査ラインが６４本程度あるものでは
、ライ／毎に液晶にかかる電圧の波形のなまりが異なり
、この結果として、ライン毎に輝度ムラが起こるという
現象が表われる。このような現象を避けるためには、ラ
イン毎に液晶にかかる波形を補正しなければならない。According to the present invention, by making the wiring resistances on the signal side and the scanning side of the transparent conductive film equal from the terminal portion, the waveform rounding due to the resistance and capacitance becomes equal, and as a result, it is possible to eliminate uneven brightness. be. For example, if there are variations in the wiring resistance on the scanning side, in a graphic liquid crystal display device with about 64 scanning lines, the waveform of the voltage applied to the liquid crystal will be different for each line, and as a result, the line The phenomenon of uneven brightness occurs every time. In order to avoid such a phenomenon, it is necessary to correct the waveform applied to the liquid crystal for each line.
しかし、液晶は容量負荷であり、透明導電膜の抵抗分を
なくすことはできない。そこで波形なまり（波形歪）は
必ず生ずることになる。この波形歪は各ライン毎の引き
回し抵抗を等しくすること憂こよって一様にし、その結
果として輝度ムラをなくすことができるという効果が得
られる。However, the liquid crystal is a capacitive load, and the resistance of the transparent conductive film cannot be eliminated. Therefore, waveform rounding (waveform distortion) will inevitably occur. This waveform distortion can be made uniform by equalizing the routing resistance for each line, and as a result, it is possible to obtain the effect that brightness unevenness can be eliminated.
図は本発明の一実施例を示す透明導電電極の平面説明に
である。
１・・・走査側電極部、 ２・・・走査側上板電極
引き回し部、 ３・・・信号側電極、 ４・・・走
査側下板電極引き回し部、 ５・・・Ａｇペースト
部。
代理人 弁理士 薄 １）利 ｑ；ｙ、ｚ。The figure is a plan view of a transparent conductive electrode showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Scanning side electrode part, 2...Scanning side upper plate electrode routing part, 3...Signal side electrode, 4...Scanning side lower plate electrode routing part, 5...Ag paste part. Agent Patent Attorney Bo 1) Li q; y, z.
Claims (1)
ールし、内部に液晶を封入封止してなる液晶表示素子に
おいて、薄膜透明導電膜の抵抗を信号側電極および走査
側電極において端子部からの抵抗値を等しくしたことを
特徴とする液晶表示素子。In a liquid crystal display element in which a glass substrate on which a thin film transparent conductive film is formed is sealed with a sealing material and a liquid crystal is sealed inside, the resistance of the thin film transparent conductive film is measured from the terminal part at the signal side electrode and the scanning side electrode. A liquid crystal display element characterized by having equal resistance values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36382A JPS58117586A (en) | 1982-01-06 | 1982-01-06 | Liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36382A JPS58117586A (en) | 1982-01-06 | 1982-01-06 | Liquid crystal display element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58117586A true JPS58117586A (en) | 1983-07-13 |
Family
ID=11471708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36382A Pending JPS58117586A (en) | 1982-01-06 | 1982-01-06 | Liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58117586A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005157353A (en) * | 2003-11-20 | 2005-06-16 | Samsung Oled Co Ltd | Organic field light emitting element provided with low resistance wiring |
-
1982
- 1982-01-06 JP JP36382A patent/JPS58117586A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005157353A (en) * | 2003-11-20 | 2005-06-16 | Samsung Oled Co Ltd | Organic field light emitting element provided with low resistance wiring |
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