KR820001139B1 - Liquid crystal display device - Google Patents

Liquid crystal display device Download PDF

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Publication number
KR820001139B1
KR820001139B1 KR7902539A KR790002539A KR820001139B1 KR 820001139 B1 KR820001139 B1 KR 820001139B1 KR 7902539 A KR7902539 A KR 7902539A KR 790002539 A KR790002539 A KR 790002539A KR 820001139 B1 KR820001139 B1 KR 820001139B1
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South Korea
Prior art keywords
liquid crystal
crystal display
terminal
display device
electrode
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KR7902539A
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Korean (ko)
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히로나리 다나까
시게루 마쓰야마
다다시 이시바시
기요시게 기누가와
유끼히로 사도우
Original Assignee
요시야마 히로기찌
가부시기 가이샤 히다찌세이사구쇼
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Priority to KR7902539A priority Critical patent/KR820001139B1/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

Abstract

The substrate arrangement which enables LCD element to simple connection with external circuit, comprises the transparent conductive film electrodes (7), the leads (8) formed on the flexible substrate (9) and island-shaped conductive portion (11). The conductive portion consists of the mixture, mixed the hot melt adhesives with >=10 V/V % of the Ag (or Au, or Pd). The long & narrow plate-shaped hot melt adhesives (12) is formed by the insulated hot melt adhesive (13) with conductive portion (11).

Description

액정 표시 장치Liquid crystal display

제1도는 종래의 돌출 인출선이 있는 액정표시소자를 표시한 사시도.1 is a perspective view showing a conventional liquid crystal display device with protruding lead lines.

제2도, 제3도는 종래, 액정표시소자 단자부와 회로기관 인출선 단자부 사이에 개재시켰던 접속용 패드의 사시도.2 and 3 are perspective views of a connection pad interposed between a liquid crystal display element terminal portion and a circuit engine lead-out terminal portion.

제4도, 제5도는 본 발명의 실시예도.4 and 5 are embodiments of the present invention.

제6도는 본 발명에 사용되는 판상 고열용(Hot melt)접착제를 표시한 도면.6 is a diagram showing a plate hot melt adhesive used in the present invention.

제7도는 본 발명을 실시하는 액정표시소자 단자부의 평면도 및 측단면도.7 is a plan view and a side sectional view of a liquid crystal display device terminal portion according to the present invention.

본 발명은 미세한 간격으로 다수의 인출전극이 나란히 이어지는 액정표시소자와 외부 회로와의 접속을 용이하게 한 액정표시장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device which facilitates a connection between a liquid crystal display device and an external circuit in which a plurality of lead electrodes are connected side by side at minute intervals.

종래 액정표시소자와 외부회로와의 접속에는, 다음과 같은 구조가 사용되고 있었다.Conventionally, the following structure has been used for the connection between a liquid crystal display element and an external circuit.

제1도는 액정표시소자(1)의 전극단자의 간격이 1.5mm정도의 경우까지 사용되는 단자구조를 표시하고, 금속선(2)으로 되는 돌출된 인출선을 소켓에 삽입하거나, 회로기판에 납땜해서 외부회로와 접속한다.FIG. 1 shows the terminal structure used until the electrode terminal of the liquid crystal display device 1 is about 1.5 mm apart, and inserts a protruding lead wire made of metal wire 2 into a socket or solders it to a circuit board. Connect with external circuit.

확실하게 접속을 할 수 있으나, 단자간격이 좁게되면 인접전극 사이가 접촉이 싫게 되어서 채용할 수 없게 된다.Although the connection can be securely performed, when the terminal spacing becomes narrow, contact between adjacent electrodes becomes unsatisfactory and cannot be adopted.

액정표시소자의 단자간 거리가 1.0mm정도의 경우까지는, 제2도에 표시함과 같은 도전성고무(3)와, 절연성고무(4)가, 상기 단자간 거리에 맞추어서 교호로 결합된 패드를, 액정표시소자 단자와 회로 기관(도시 않음)에 형성된 인출선 단자사이에, 상기 패드의 도전성고무(3)가 개재하도록 배치하고, 상기 양단자부 사이에 기계적 압력을 가해서, 이들 양단자 사이를 전기적으로 접속한다. 이러한 구조의 경우, 인접한 도전성고무(3)의 피치를 매우 좁게 하는 것은 곤란하므로, 단자사이의 거리가 더욱 짧을 경우는, 제3도에 표시함과 같은, 금도금 등을 처리한 금속세선(5)을 절연성고무시이트(6)에 매입한 패드를, 액정표시소자 단자와 회로기판에 인쇄된 인출선 단자 사이에 상기 금속세선(6)이 개재하도록 배치하고, 양단자 사이에 압력을 가해서, 이들 양단자 사이를 접속한다.Until the distance between the terminals of the liquid crystal display element is about 1.0 mm, pads in which the conductive rubber 3 and the insulating rubber 4 as shown in FIG. 2 are alternately coupled in accordance with the distance between the terminals, Between the liquid crystal display device terminal and the lead wire terminal formed in the circuit engine (not shown), the conductive rubber 3 of the pad is interposed, and mechanical pressure is applied between the both terminal portions to electrically connect the two terminals. Connect. In such a structure, it is difficult to make the pitch of the adjacent conductive rubber 3 very narrow. Therefore, when the distance between terminals is shorter, the fine metal wire 5 which processed gold plating etc. as shown in FIG. Pads embedded in the insulating rubber sheet 6 are disposed so that the metal thin wires 6 are interposed between the liquid crystal display element terminal and the lead wire terminal printed on the circuit board, and the pressure is applied between both terminals. Connect between terminals.

이 구조는 단자 사이의 거리를 0.5mm정도까지 적용할 수 있다. 그러나 액정표시소자의 전극단자수가 많고 외형치수가 긴 경우에는, 제2도나 제3도에 표시한 패드를 사용하는 구조는, 전단자부에 균등하게 압력을 가해서 각 단자사이의 양호한 도통을 얻는 것이 곤란하게 되어, 양호한 도통을 얻을려고 압력을 크게 하면 액정표시소자를 파손할 경우가 생기기 쉽다.This structure can apply the distance between terminals up to 0.5mm. However, in the case where the number of electrode terminals of the liquid crystal display element is large and the external dimension is long, it is difficult for the structure using the pads shown in Figs. When the pressure is increased to obtain good conduction, the liquid crystal display element is likely to be damaged.

본 발명은 상기와 같은 문제가 없는, 미세한 간격으로 다수의 인출 전극이 나란히 이어진 액정표시소자와 외부회로와의 접속을 용이하게 할 수 있게한 액정표시장치를 제공하는 것을 목적으로 한다.SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid crystal display device which makes it possible to easily connect a liquid crystal display element and an external circuit in which a plurality of lead electrodes are connected side by side at minute intervals without the above problems.

상기 목적을 달성하기 위해서 본 발명에 있어서는, 액정표시소자의 기판에 착설한 전극단자를, 이 전극단자의 배열에 맞추어서, 그 판의 두께를 관통하는 도전성부분을 섬(島)모양으로 배설한 가늘고 긴판상 고열용융접착제에 의해, 가요성 기판상에 형성된 전극인출용 배선의 상기 전극단자에 맞추어서 배설된 단자에 접속하고, 이 인출용배선을 개재하여 상기 액정표시소자를 외부회로에 접속하도록 하였다.In order to achieve the above object, in the present invention, the electrode terminal placed on the substrate of the liquid crystal display element is thin, in which the conductive portion penetrating the thickness of the plate is arranged in an island shape in accordance with the arrangement of the electrode terminal. The long plate-like high-temperature melt adhesive was connected to a terminal disposed in accordance with the electrode terminal of the electrode lead-out wiring formed on the flexible substrate, and the liquid crystal display element was connected to an external circuit via the lead-out wire.

제4도는 본 발명의 일실시예시도이고, 제5a도는 제4도중의 A부의 확대평면도, 제5b도는 A부의 측단면도이다.4 is an exemplary view of the present invention. FIG. 5A is an enlarged plan view of part A in FIG. 4, and FIG. 5B is a side cross-sectional view of part A. FIG.

도면중, (1)은 액정표시소자, (7)은 투명도전막 전극단자, (8)은 가요성기판 (9)위에 형성된 인출용배선(11)은 가늘고 긴 판상 고열용융접착제(12)중에 섬모양으로 배설된 도전성부분으로, 고열용융 접착제 또는 점착제(粘着劑)에 예를 들면 은(또는 Au, 또는 Pd)분을 10용량%이상 혼합한 것이다.In the drawing, reference numeral 1 denotes a liquid crystal display device, 7 a transparent conductive electrode electrode terminal, 8 a lead-out wiring 11 formed on a flexible substrate 9, and a thin and long plate-like hot-melt adhesive 12. The conductive portion disposed in the shape of, for example, silver (or Au, or Pd) powder is mixed with a high-temperature melting adhesive or a pressure-sensitive adhesive for at least 10% by volume.

(13)은 통상의 절연성 고열용융접착제로, 도전성부분(11)과 함께 제6도에 표시함과 같은 가늘고 긴 판상 고열용융접착제(12)를 형성하고 있다.Reference numeral 13 denotes a normal insulating hot melt adhesive, which together with the conductive portion 11 forms an elongated plate-like high hot melt adhesive 12 as shown in FIG.

(15)는 액정표시소자(1)의 상판(上板)기판, (16)은 소자(1)의 하판(下板)기판, (17)은 소자(1)의 상하 기판을 주변에서 봉착하는 봉착제, (18)은 액정이다.Reference numeral 15 denotes an upper substrate of the liquid crystal display device 1, 16 a lower substrate of the device 1, and 17 a sealing member of the upper and lower substrates of the device 1 around. The sealing agent and 18 are liquid crystals.

고열용융접착제는, EVA, 나일론계 수지, 폴리에스테르계 수지, 폴리비닐부틸알 등을 들 수 있으나, 특히 한정할 필요는 없다. 통상 액정표시소자는 전력소비가 극히 적으며, 통전량은 근소하므로, 판상 고열용융접착제중의 도전성부분(11)의 저항이 다소 높아도 저장은 없다.Examples of the high-temperature melt adhesive include EVA, nylon resin, polyester resin, polyvinyl butylal, and the like, but are not particularly limited. In general, the liquid crystal display device consumes very little power and has a small amount of energization. Therefore, there is no storage even if the resistance of the conductive portion 11 in the plate-like hot melt adhesive is slightly higher.

또한 액정표시소자(1)의 전극단자부의 평면도를 제7a도에, 측단면도를 제7b도에 표시한다.In addition, the top view of the electrode terminal part of the liquid crystal display element 1 is shown in FIG. 7A, and the side cross-sectional view is shown in FIG. 7B.

본 발명 장치에 사용되는 연출용배선(8)은 가요성기판(9)위에 형성되어 있으므로 취급이 용이하고, 더우기 도전성부분(11)을 착설한 판상 고열용융접착제(12)를 사용해서, 액정표시소자(1)의 상판기판(15) 주변단부에 배설된 투명전도막 전극단자(7)에 순차 가열 접속해가면 되므로, 접속작업도 용이하고, 압력을 너무 가해서 액정표시소자(1)를 파손할 염려도 없다.Since the wiring 8 for use in the apparatus of the present invention is formed on the flexible substrate 9, it is easy to handle, and furthermore, using the plate-like high-temperature melting adhesive 12 having the conductive portion 11 installed thereon, a liquid crystal display is provided. Since it is only necessary to connect to the transparent conductive film electrode terminal 7 disposed at the peripheral end of the upper substrate 15 of the element 1 in order, the connection work is easy and the liquid crystal display element 1 can be damaged by applying too much pressure. There is no worry.

또한, 단자를 동일선상에 배열하지 않고 제5a도, 제7a도에 표시함과 같이 지그재그로 배치하면, 인출선의 선단에 비교적 큰 면적의 접속용단자를 착설할 수 있고, 또 가열시에 고열용융접착제의 도전성 부분(11)이 녹아서 다소 옆방향으로 흘렀다고해도 인접하는 전극을 단락할 염려가 없다.If the terminals are arranged in a zigzag as shown in Figs. 5A and 7A without arranging the terminals on the same line, a connection terminal having a relatively large area can be installed at the tip of the lead wire, and high-temperature melting at the time of heating Even if the conductive portion 11 of the adhesive melts and flows laterally, there is no fear of shorting the adjacent electrodes.

이상 설명한 바와 같이 본 발명에 의하면, 미세한 간격으로 다수의 연출전극이 나란히 이어져 있는 액정표시소자를 용이하고, 또한 확실하게 외부회로에 접속할 수 있게 되는 효과가 있다.As described above, according to the present invention, it is possible to easily and reliably connect an external circuit with a liquid crystal display device in which a plurality of directing electrodes are connected side by side at minute intervals.

Claims (1)

액정표시소자의 기판에 착설한 전극단자를, 이 전극단자의 배열에 맞추어서, 그 판의 두께를 관통하는 도전성부분을 섬모양으로 배설한 가늘고 긴 판상 고열용융착제에 의해, 가요성기판위에 형성된 전극인출용 배선의 상기 전극단자에 맞추어서 배설된 단자에 접속하고, 이 전극인출용 배선을 개재하여 상기 액정표시소자를 외부회로에 접속하도록 하고, 상기 액정표시소자의 인접하는 전극단자를 단자배열 방향에 직각으로 원근(遠近)교호로 지그재그로 배치한 것을 특징으로 하는 액정표시장치.The electrode terminal placed on the substrate of the liquid crystal display element is formed on the flexible substrate by an elongated plate-like high-temperature melting agent in which island-like conductive portions penetrating the thickness of the plate are arranged in accordance with the arrangement of the electrode terminals. A terminal arranged in accordance with the electrode terminal of the electrode lead-out wiring, connected to the external circuit via the electrode lead-out wiring, and an adjacent electrode terminal of the liquid crystal display element in the terminal arrangement direction A liquid crystal display device arranged in a zigzag form with alternating perspective at right angles to the surface.
KR7902539A 1979-07-26 1979-07-26 Liquid crystal display device KR820001139B1 (en)

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KR7902539A KR820001139B1 (en) 1979-07-26 1979-07-26 Liquid crystal display device

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KR7902539A KR820001139B1 (en) 1979-07-26 1979-07-26 Liquid crystal display device

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KR820001139B1 true KR820001139B1 (en) 1982-06-26

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