JP2946664B2 - Liquid crystal display - Google Patents
Liquid crystal displayInfo
- Publication number
- JP2946664B2 JP2946664B2 JP18652490A JP18652490A JP2946664B2 JP 2946664 B2 JP2946664 B2 JP 2946664B2 JP 18652490 A JP18652490 A JP 18652490A JP 18652490 A JP18652490 A JP 18652490A JP 2946664 B2 JP2946664 B2 JP 2946664B2
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- Prior art keywords
- connection electrode
- liquid crystal
- tfd
- signal wiring
- insulating layer
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は液晶表示装置に関する。The present invention relates to a liquid crystal display device.
第７図に従来の液晶表示装置を示す。画素電極８と信
号配線３の間には間隙があり、その間隙にTFD素子１が
一つ形成され、TFD素子１は第一の接続電極と第二の接
続電極によって、それぞれ信号配線３と画素電極８に接
続されている。第８図は第７図切線Ａ−Ｂの断面図であ
る。FIG. 7 shows a conventional liquid crystal display device. There is a gap between the pixel electrode 8 and the signal wiring 3, and one TFD element 1 is formed in the gap, and the TFD element 1 is connected to the signal wiring 3 and the pixel by a first connection electrode and a second connection electrode, respectively. It is connected to the electrode 8. FIG. 8 is a sectional view taken along section line AB in FIG.
TFD素子の電気的特性は、TFDの絶縁体の物性と、TFD
の絶縁体とTFDの接続電極との界面の状態によって決ま
る。TFD素子の第一の接続電極３とTFDの絶縁体５との界
面と、TFD素子の第二の接続電極４とTFDの絶縁体５との
界面とでは、その状態が互いに異なるため、TFD素子に
電気信号を印加した時、その印加方向によってTFD素子
は異なった電気的特性を示す、この電気信号の印加方向
による電気的特性の違いを極性差とよぶ。極性差は、液
晶表示装置に画像を表示した時のちらつき（フリッカ）
を引き起こしたり、液晶や配向膜の劣化を引き起こし、
表示品質の劣化を引き起こす。The electrical characteristics of a TFD element depend on the properties of the TFD insulator and the TFD.
Is determined by the state of the interface between the insulator and the connection electrode of the TFD. The interface between the first connection electrode 3 of the TFD element and the TFD insulator 5 and the interface between the second connection electrode 4 of the TFD element and the TFD insulator 5 are different from each other. When an electric signal is applied to the TFD element, the TFD element shows different electric characteristics depending on the application direction. The difference in the electric characteristic depending on the application direction of the electric signal is called a polarity difference. The polarity difference is caused by flickering when displaying an image on a liquid crystal display device (flicker).
Cause deterioration of the liquid crystal and alignment film,
This causes deterioration of display quality.
従来のように一つのTFD素子を介して信号配線と画素
電極が接続されている場合には原理的に極性差が存在す
る。接続電極の材質や、熱工程によってある程度極性差
を減らすことはできるが完全に無くすことはできない。
液晶や配向膜の劣化に対しては微量の極性差が重大な影
響を及ぼす、従って極性差を完全になくすことが望まれ
る。When the signal wiring and the pixel electrode are connected via one TFD element as in the related art, there is a difference in polarity in principle. The polarity difference can be reduced to some extent by the material of the connection electrode and the heat process, but it cannot be completely eliminated.
A minute polarity difference has a significant effect on the deterioration of the liquid crystal and the alignment film. Therefore, it is desired to completely eliminate the polarity difference.
また従来のTFDのように第一の接続電極と第二の接続
電極が十字に交差する構造では、しばしば第９図９に示
す場所で第二の接続電極が断線し、歩留り低下の最も大
きな原因のひとつとなっていた。In a structure in which the first connection electrode and the second connection electrode cross each other like a conventional TFD, the second connection electrode often breaks at the place shown in FIG. It was one of.
本発明はこの様な課題を解決するためになされるもの
で、第一のTFD素子，第二のTFD素子を互いの極性差が相
殺されるように直列に接続し、該直列に接続された二つ
のTFD素子を介して信号配線と画素電極を接続すること
により、極性差のない高品質の液晶表示装置を提供し、
同時に接続電極の十字の交差部分をなくし、接続電極の
断線による歩留り低下を解決することを目的とする。The present invention has been made to solve such a problem, and a first TFD element and a second TFD element are connected in series so that a polarity difference therebetween is offset, and the first TFD element and the second TFD element are connected in series. By connecting the signal wiring and the pixel electrode via two TFD elements, a high quality liquid crystal display device with no polarity difference is provided,
At the same time, an object of the present invention is to eliminate a cross portion of a cross of a connection electrode and to solve a reduction in yield due to disconnection of a connection electrode.
本発明の第１の液晶表示装置は、一対の基板間に、液
晶または、液晶を含有するポリマーが挟持され、前記一
対の基板の一方の基板上には、信号配線と、該信号配線
に接続された非線形素子と、該非線形素子に接続された
画素電極とが配置される液晶表示装置であって、 前記非線形素子は、前記信号配線の一部からなる第一
の接続電極と、一層または多層の絶縁体または半導体ま
たはその両者からなる第一の絶縁層と、第二の接続電極
とが積層された前記信号配線の少なくとも一部と接続さ
れる第１の素子及び、前記第二の接続電極と、前記第一
の絶縁層と、第三の接続電極とが積層され前記画素電極
の少なくとも一部と接続される第２の素子からなり、 前記第一の絶縁層上には、第二の絶縁層が配置され、
前記第一の接続電極及び前記第三の接続電極は、前記第
二の絶縁層に設けられたスルーホールを通じて前記第一
の絶縁層と接することを特徴とする。In a first liquid crystal display device of the present invention, a liquid crystal or a polymer containing a liquid crystal is sandwiched between a pair of substrates, and a signal wiring and a connection to the signal wiring are provided on one of the pair of substrates. A non-linear element and a pixel electrode connected to the non-linear element are arranged, wherein the non-linear element includes a first connection electrode formed from a part of the signal wiring, and a single or multi-layer structure. A first element connected to at least a part of the signal wiring in which a first insulating layer made of an insulator or a semiconductor or both of them and a second connection electrode are stacked, and the second connection electrode And a second element in which the first insulating layer and a third connection electrode are stacked and connected to at least a part of the pixel electrode. On the first insulating layer, a second element is provided. An insulating layer is arranged,
The first connection electrode and the third connection electrode are in contact with the first insulating layer through through holes provided in the second insulating layer.
また、本発明の第２の液晶表示装置は、一対の基板間
に、液晶または、液晶を含有するポリマーが挟持され、
前記一対の基板の一方の基板上には、信号配線と、該信
号配線に接続された非線形素子と、該非線形素子に接続
された画素電極とが配置される液晶表示装置であって、 前記非線形素子は、前記信号配線の一部からなる第一
の接続電極と、一層または多層の絶縁体または半導体ま
たはその両者からなる第一の絶縁層と、第二の接続電極
とが積層され前記信号配線の少なくとも一部と接続され
る第１の素子及び前記第二の接続電極と、前記第一の絶
縁層と、前記画素電極の一部からなる第三の接続電極と
が積層される第２の素子からなり、 前記第一の絶縁層上には、第二の絶縁層が配置され、
前記第一の接続電極及び前記第三の接続電極は、前記第
二の絶縁層に設けられたスルーホールを通じて前記第一
の絶縁層と接することを特徴とする。In the second liquid crystal display device of the present invention, a liquid crystal or a polymer containing a liquid crystal is sandwiched between a pair of substrates,
A liquid crystal display device in which a signal wiring, a non-linear element connected to the signal wiring, and a pixel electrode connected to the non-linear element are arranged on one of the pair of substrates, The element comprises a first connection electrode composed of a part of the signal wiring, a first insulation layer composed of one or more insulators or semiconductors or both, and a second connection electrode laminated on the signal wiring. A first element connected to at least a part of the first element, the second connection electrode, the first insulating layer, and a second connection electrode in which a third connection electrode including a part of the pixel electrode is stacked. A second insulating layer is disposed on the first insulating layer,
The first connection electrode and the third connection electrode are in contact with the first insulating layer through through holes provided in the second insulating layer.
第13図にTFD素子１の等価回路を示す。並列回路10と1
1は電気的特性が異なるため、電気信号をＣ→Ｄと、Ｄ
→Ｃ方向とに印加した時TFD素子１には極性差が現われ
る。第14図，第15図は第13図の等価回路で表されるTFD
素子１の電気特性を示している。FIG. 13 shows an equivalent circuit of the TFD element 1. Parallel circuits 10 and 1
1 has different electrical characteristics.
→ When applied in the C direction, a polarity difference appears in the TFD element 1. Figures 14 and 15 show the TFD expressed by the equivalent circuit of Figure 13.
2 shows the electrical characteristics of the element 1.
実線はＣ→Ｄ、破線はＤ→Ｃに信号を印加した時の特
性を示している。第14図は電流−電圧特性（Ｉ−Ｖ特
性）を示す。Ｘ軸が電圧、Ｙ軸が電流である。第15図は
容量−電圧特性（Ｃ−Ｖ特性）を示す。Ｘ軸が電圧、Ｙ
軸が容量である。TFD素子の極性差はこの様な形で現
れ、この極性差が液晶に対して直流分となって液晶、配
向膜を劣下させる。The solid line shows the characteristics when a signal is applied from C to D, and the broken line shows the characteristics when a signal is applied from D to C. FIG. 14 shows current-voltage characteristics (IV characteristics). The X axis is voltage and the Y axis is current. FIG. 15 shows capacitance-voltage characteristics (CV characteristics). X-axis is voltage, Y is
The axis is capacity. The polarity difference of the TFD element appears in such a form, and this polarity difference becomes a DC component with respect to the liquid crystal, and deteriorates the liquid crystal and the alignment film.
本発明の液晶表示装置は、第10図に示すように二つの
TFD素子を互いの極性差が相殺されるように直列に接続
することによって、第11図、第12図に示すような極性差
の無い、±対称なＩ−Ｖ特性、Ｃ−Ｖ特性が得られる。
また、第１図，第２図，第５図に示すように第一のTFD
素子、第二のTFD素子はそれぞれ信号配線、画素電極の
下（上）に形成されている為、接続電極の十字の交差部
分がない、したがって接続電極の断線による歩留り低下
は起こらない。The liquid crystal display device of the present invention has two
By connecting the TFD elements in series so that the polarity difference between them is offset, ± symmetric IV characteristics and CV characteristics without polarity differences as shown in FIGS. 11 and 12 can be obtained. Can be
Also, as shown in FIGS. 1, 2 and 5, the first TFD
Since the element and the second TFD element are formed below (above) the signal wiring and the pixel electrode respectively, there is no intersection of the cross of the connection electrode, and therefore, the yield does not decrease due to the disconnection of the connection electrode.
以下、実施例に基づき本発明を詳細に説明する。 Hereinafter, the present invention will be described in detail based on examples.
（実施例） 第１図は本発明による液晶表示装置の平面図である。
１は第一のTFD素子、２は第二のTFD素子、３は信号配
線、４は第二の接続電極、８は画素電極である。ここで
信号配線３の一部はTFD素子の第一の接続電極を兼ねて
いる。(Example) FIG. 1 is a plan view of a liquid crystal display device according to the present invention.
1 is a first TFD element, 2 is a second TFD element, 3 is a signal wiring, 4 is a second connection electrode, and 8 is a pixel electrode. Here, a part of the signal wiring 3 also serves as a first connection electrode of the TFD element.
第２図は、第１図に於ける切片Ａ−Ｂの断面図であ
る。５はTFDの絶縁体、６はTFDの絶縁体５に比べて十分
に抵抗の高い（３倍以上）絶縁体、７はTFD素子の第三
の接続電極、８は画素電極である。ここで、第一のTF
D、第二のTFDはそれぞれ信号配線、画素電極の下に形成
されており、かつ該二つのTFD素子は、第二の接続電極
４の上に形成されている。信号配線３と第三の接続電極
７は、同一の材料で同時に形成される。したがって、二
つTFD素子1,2は等価回路的に第10図に示すような構造で
接続され、互いの極性差が相殺される。FIG. 2 is a sectional view of section AB in FIG. 5 is an insulator of TFD, 6 is an insulator having sufficiently higher resistance (three times or more) than the insulator 5 of TFD, 7 is a third connection electrode of the TFD element, and 8 is a pixel electrode. Where the first TF
D and the second TFD are formed below the signal wiring and the pixel electrode, respectively, and the two TFD elements are formed on the second connection electrode 4. The signal wiring 3 and the third connection electrode 7 are simultaneously formed of the same material. Therefore, the two TFD elements 1 and 2 are connected in an equivalent circuit structure as shown in FIG. 10, and the polarity difference therebetween is canceled.
また第一の接続電極と第二の接続電極、第二の接続電
極と第三の接続電極は、第二の接続電極上で、絶縁膜６
にもうけられたコンタクトホールを通してTFD素子1,2を
形成している。したがって、接続電極の十字の交差部分
がないため接続電極の断線が起こらない。Further, the first connection electrode and the second connection electrode, and the second connection electrode and the third connection electrode are formed on the insulating film 6 on the second connection electrode.
TFD elements 1 and 2 are formed through contact holes formed in the TFD. Therefore, there is no crossing of the connecting electrode, so that there is no disconnection of the connecting electrode.
第４図は実施例１の製造工程を示す。 FIG. 4 shows a manufacturing process of the first embodiment.
（ａ）基板上に第二の接続電極４を形成するための金属
とTFDの絶縁膜５を堆積させる。TFDの絶縁膜５は、接続
電極４を陽極酸化または熱酸化するか、接続電極４上に
絶縁膜または半導体をスパッタまたは、蒸着により一層
または多層得る。(A) A metal and TFD insulating film 5 for forming the second connection electrode 4 are deposited on the substrate. The insulating film 5 of the TFD can be obtained by anodizing or thermally oxidizing the connection electrode 4 or by sputtering or vapor-depositing an insulating film or a semiconductor on the connection electrode 4 to obtain one or more layers.
（ｂ）エッチングにより第二の接続電極４とTFDの絶縁
膜５を形成する。(B) The second connection electrode 4 and the TFD insulating film 5 are formed by etching.
（ｃ）絶縁体６を基板上に堆積させる。(C) deposit insulator 6 on the substrate;
（ｄ）絶縁体６をエッチングし、TFD素子を形成するた
めのコンタクトホールを設ける。(D) The insulator 6 is etched to provide a contact hole for forming a TFD element.
（ｅ）第一の接続電極を兼ねる信号配線３と第三の接続
電極７を同一金属で同時に形成する。(E) The signal wiring 3 also serving as the first connection electrode and the third connection electrode 7 are simultaneously formed of the same metal.
（ｆ）画素電極８を形成する。(F) The pixel electrode 8 is formed.
（ｇ）〜（ｌ）図は、（ａ）〜（ｆ）図の断面図であ
る。(G)-(l) are sectional views of (a)-(f).
（実施例２） 第５図は、第１図に於ける切片Ａ−Ｂの他の断面図で
ある。ここで第一のTFD、第二のTFDはそれぞれ信号配線
３、画素電極８の上に形成されており、かつ該二つのTF
D素子は第二の接続電極４の下に形成されている。(Example 2) Fig. 5 is another sectional view of section AB in Fig. 1. Here, the first TFD and the second TFD are formed on the signal line 3 and the pixel electrode 8, respectively.
The D element is formed below the second connection electrode 4.
第６図は実施例２の製造工程を示す。 FIG. 6 shows a manufacturing process of the second embodiment.
（ａ）画素電極８を形成する。(A) The pixel electrode 8 is formed.
（ｂ）第４図工程（ａ）（ｂ）と同様な工程で、第一の
接続電極を兼ねる信号配線３と、第三の接続電極７とTF
Dの絶縁膜５を同時に形成する。(B) In a step similar to steps (a) and (b) of FIG. 4, the signal wiring 3 also serving as the first connection electrode, the third connection electrode 7 and the TF
The D insulating film 5 is formed at the same time.
（ｃ）第４図工程（ｃ）（ｄ）と同様に、TFD素子を形
成するためのコンタクトホールの設けられた絶縁体６を
堆積させる。(C) As in steps (c) and (d) of FIG. 4, an insulator 6 provided with a contact hole for forming a TFD element is deposited.
（ｄ）第二の接続電極４を形成する。(D) The second connection electrode 4 is formed.
（ｅ）〜（ｈ）図は、（ａ）〜（ｄ）図の断面図であ
る。(E)-(h) are sectional views of (a)-(d).
（実施例３） 第３図は本発明による実施例３の断面を示す図であ
る。平面図は第１図と同じであるが、画素電極８は、TF
Dの第三の接続電極をかねており、第一の接続電極を兼
ねる信号配線３と同一材質で同時に形成される。したが
って、信号配線３を別に形成する工程が省略できるため
歩留りの向上とコストの削減が出来る。Third Embodiment FIG. 3 is a view showing a cross section of a third embodiment according to the present invention. The plan view is the same as that of FIG.
The signal wiring 3 which also serves as the third connection electrode of D and also serves as the first connection electrode is simultaneously formed of the same material. Therefore, since the step of separately forming the signal wiring 3 can be omitted, the yield can be improved and the cost can be reduced.
以上述べたように、本発明によれば、二つのTFD素子
を互いの極性差が相殺されるように直列に接続し、該直
列に接続された二つのTFD素子を介して信号配線と画素
電極を接続することにより、極性差のない高品質の液晶
表示装置を提供し、同時に接続電極の十字の交差部分を
なくし、接続電極の断線による歩留り低下を解決するこ
とができる。As described above, according to the present invention, two TFD elements are connected in series so that the polarity difference therebetween is canceled, and the signal wiring and the pixel electrode are connected via the two TFD elements connected in series. By connecting the electrodes, a high quality liquid crystal display device having no polarity difference can be provided, and at the same time, the intersections of the connection electrodes at the crosses can be eliminated and the reduction in the yield due to the disconnection of the connection electrodes can be solved.
第１図：本発明による液晶表示装置の平面図 第２図：（実施例１）において第１図切片Ａ−Ｂに於け
る断面図 第３図：（実施例３）において第１図切片Ａ−Ｂに於け
る断面図 第４図：実施例１に於ける製造工程を示す図 第５図：（実施例２）において第１図切片Ａ−Ｂに於け
る断面図 第６図：実施例２に於ける製造工程を示す図 第７図：従来の液晶表示装置の平面図 第８図：第８図切片Ａ−Ｂに於ける断面図 第９図：第８図切片Ａ−Ｂに於ける断面図 第10図：本発明による液晶表示装置のTFD素子を表す等
価回路図 第11図：本発明による液晶表示装置のTFD素子のＩ−Ｖ
特性を表す図 第12図：本発明による液晶表示装置のTFD素子のＣ−Ｖ
特性を表す図 第13図：従来の液晶表示装置のTFD素子を表す等価回路
図 第14図：従来の液晶表示装置のTFD素子のＩ−Ｖ特性を
表す図 第15図：従来の液晶表示装置のTFD素子のＣ−Ｖ特性を
表す図 １……第一のTFD素子 ２……第二のTFD素子 ３……信号配線 ４……TFDの第二の接続電極 ５……TFDの一層または多層の絶縁体または半導体また
はその両者 ６……TFDの絶縁体層５に比べ抵抗の高い絶縁層 ７……TFDの第三の接続電極 ８……画素電極 ９……TFD素子に於ける接続電極の断線不良 10……TFD素子の等価回路図の一部分 11……TFD素子の等価回路図の一部分FIG. 1: a plan view of a liquid crystal display device according to the present invention FIG. 2: a sectional view taken along section AB of FIG. 1 in (Example 1) FIG. 3: a section A of FIG. 1 in (Example 3) FIG. 4 is a view showing a manufacturing process in the first embodiment. FIG. 5 is a sectional view in section AB of FIG. 1 in (the second embodiment). FIG. 6 is an embodiment. FIG. 7 is a plan view of a conventional liquid crystal display device. FIG. 8 is a sectional view taken along section AB of FIG. 8. FIG. 9 is a sectional view taken along section AB of FIG. FIG. 10: Equivalent circuit diagram showing the TFD element of the liquid crystal display device according to the present invention FIG. 11: IV of the TFD element of the liquid crystal display device according to the present invention
Fig. 12: CV of TFD element of liquid crystal display device according to the present invention
Fig. 13: Equivalent circuit diagram showing TFD elements of conventional liquid crystal display device Fig. 14: Diagram showing IV characteristics of TFD elements of conventional liquid crystal display device Fig. 15: Conventional liquid crystal display device 1... First TFD element 2... Second TFD element 3... Signal wiring 4... Second connection electrode of TFD 5. 6... An insulating layer having a higher resistance than the insulating layer 5 of the TFD 7... A third connecting electrode 8 of the TFD 8. Disconnection failure 10 Part of the equivalent circuit diagram of the TFD element 11 Part of the equivalent circuit diagram of the TFD element
Claims (2)
するポリマーが挟持され、前記一対の基板の一方の基板
上には、信号配線と、該信号配線に接続された非線形素
子と、該非線形素子に接続された画素電極とが配置され
る液晶表示装置であって、 前記非線形素子は、前記信号配線の一部からなる第一の
接続電極と、一層または多層の絶縁体または半導体また
はその両者からなる第一の絶縁層と、第二の接続電極と
が積層され前記信号配線の少なくとも一部と接続される
第１の素子及び、前記第二の接続電極と、前記第一の絶
縁層と、第三の接続電極とが積層され前記画素電極の少
なくとも一部と接続される第２の素子からなり、 前記第一の絶縁層上には、第二の絶縁層が配置され、前
記第一の接続電極及び前記第三の接続電極は、前記第二
の絶縁層に設けられたスルーホールを通じて前記第一の
絶縁層と接することを特徴とする液晶表示装置。A liquid crystal or a polymer containing a liquid crystal is sandwiched between a pair of substrates, and a signal wiring, a non-linear element connected to the signal wiring, are provided on one of the pair of substrates. A liquid crystal display device in which a pixel electrode connected to the non-linear element is disposed, wherein the non-linear element includes a first connection electrode formed from a part of the signal wiring, and a single or multilayer insulator or semiconductor. A first element in which a first insulating layer composed of both of them and a second connection electrode are stacked and connected to at least a part of the signal wiring, and the second connection electrode, A second element in which a layer and a third connection electrode are stacked and connected to at least a part of the pixel electrode; a second insulating layer is disposed on the first insulating layer; The first connection electrode and the third connection electrode, The liquid crystal display device, characterized in that through a through hole provided in the second insulating layer in contact with said first insulating layer.
するポリマーが挟持され、前記一対の基板の一方の基板
上には、信号配線と、該信号配線に接続された非線形素
子と、該非線形素子に接続された画素電極とが配置され
る液晶表示装置であって、 前記非線形素子は、前記信号配線の一部からなる第一の
接続電極と、一層または多層の絶縁体または半導体また
はその両者からなる第一の絶縁層と、第二の接続電極と
が積層され前記信号配線の少なくとも一部と接続される
第１の素子及び、前記第二の接続電極と、前記第一の絶
縁層と、前記画素電極の一部からなる第三の接続電極と
が積層される第２の素子からなり、 前記第一の絶縁層上には、第二の絶縁層が配置され、前
記第一の接続電極及び前記第三の接続電極は、前記第二
の絶縁層に設けられたスルーホールを通じて前記第一の
絶縁層と接することを特徴とする液晶表示装置。2. A liquid crystal or a polymer containing a liquid crystal is sandwiched between a pair of substrates, and a signal wiring, a non-linear element connected to the signal wiring, on one of the pair of substrates, A liquid crystal display device in which a pixel electrode connected to the non-linear element is disposed, wherein the non-linear element includes a first connection electrode formed from a part of the signal wiring, and a single or multilayer insulator or semiconductor. A first element in which a first insulating layer composed of both of them and a second connection electrode are stacked and connected to at least a part of the signal wiring, and the second connection electrode, A second element in which a layer and a third connection electrode that is a part of the pixel electrode are stacked, a second insulating layer is disposed on the first insulating layer, The connection electrode and the third connection electrode, the second insulating layer The liquid crystal display device, characterized in that through the provided through-hole in contact with the first insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18652490A JP2946664B2 (en) | 1990-07-13 | 1990-07-13 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18652490A JP2946664B2 (en) | 1990-07-13 | 1990-07-13 | Liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0473716A JPH0473716A (en) | 1992-03-09 |
| JP2946664B2 true JP2946664B2 (en) | 1999-09-06 |
Family
ID=16190005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18652490A Expired - Lifetime JP2946664B2 (en) | 1990-07-13 | 1990-07-13 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2946664B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07152049A (en) * | 1993-11-29 | 1995-06-16 | Sharp Corp | Liquid crystal display device and its production |
| US5734452A (en) * | 1994-09-26 | 1998-03-31 | Sharp Kabushiki Kaisha | Two-terminal non-linear resistive device and a method for producing the same in which nickel or iron is an impurity in the zinc sulfide layer |
-
1990
- 1990-07-13 JP JP18652490A patent/JP2946664B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0473716A (en) | 1992-03-09 |
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