KR20060109145A - A connecting structure of organic electro display panel and flexible pcb - Google Patents

A connecting structure of organic electro display panel and flexible pcb Download PDF

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KR20060109145A
KR20060109145A KR1020050031452A KR20050031452A KR20060109145A KR 20060109145 A KR20060109145 A KR 20060109145A KR 1020050031452 A KR1020050031452 A KR 1020050031452A KR 20050031452 A KR20050031452 A KR 20050031452A KR 20060109145 A KR20060109145 A KR 20060109145A
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South Korea
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panel
circuit board
printed circuit
flexible printed
display panel
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KR1020050031452A
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Korean (ko)
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KR100732558B1 (en
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장진호
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주식회사 대우일렉트로닉스
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10—Substrates, e.g. flexible substrates
    • H10K77/111—Flexible substrates
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/36—Assembling printed circuits with other printed circuits
    • H05K3/361—Assembling flexible printed circuits with other printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10—Details of semiconductor or other solid state devices to be connected
    • H01L2924/11—Device type
    • H01L2924/12—Passive devices, e.g. 2 terminal devices
    • H01L2924/1204—Optical Diode
    • H01L2924/12044—OLED
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

A structure for connecting an organic EL(ElectroLuminescent) display panel to a flexible PCB are provided to increase a life of substrate by preventing a durability decrease of the substrate due to a bending unit of narrow width. In a structure for connecting an organic EL display panel to a flexible PCB(Printed Circuit Board), a front part of a cover unit(22) is attached to a rear part of a panel unit(21). A pad(23) is formed on a front part of the panel unit(21). A flexible PCB(25) is curved at an end of the panel unit(21) and is placed on a rear part of the cover unit(22).

Description

유기 ＥＬ 디스플레이 패널과 플렉시블 인쇄회로기판의 결합구조{A CONNECTING STRUCTURE OF ORGANIC ELECTRO DISPLAY PANEL AND FLEXIBLE PCB}A CONNECTING STRUCTURE OF ORGANIC ELECTRO DISPLAY PANEL AND FLEXIBLE PCB

도 1은 일반적인 유기 EL 디스플레이 패널과 플렉시블 인쇄회로기판의 결합을 나타내는 도면.1 is a view showing a combination of a general organic EL display panel and a flexible printed circuit board.

도 2는 본 발명에 따른 유기 EL 디스플레이 패널과 플렉시블 인쇄회로기판의 결합관계를 나타내는 사시도.2 is a perspective view showing a coupling relationship between an organic EL display panel and a flexible printed circuit board according to the present invention;

도 3은 도 2의 결합된 상태를 나타내는 측면도.3 is a side view showing the combined state of FIG.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

21 : 패널부 22 : 커버부21 panel portion 22 cover portion

23 : 패드 25 : 인쇄회로기판23: pad 25: printed circuit board

26 : 벤딩부26: bending part

본 발명은 플렉시블 인쇄회로기판이 패널부의 전면에 결합된 상태에서 패널부 또는 패널부와 커버부의 두께만큼 벤딩 영역이 형성되어 기판의 수명을 연장하고 불량률을 낮추어주는 유기 EL 디스플레이 패널과 플렉시블 인쇄회로기판의 결합구조에 관한 것이다.The present invention provides an organic EL display panel and a flexible printed circuit board, in which a bending region is formed by the thickness of the panel portion or the panel portion and the cover portion while the flexible printed circuit board is coupled to the front surface of the panel portion, thereby extending the life of the substrate and reducing the defect rate. It relates to the coupling structure of.

일반적으로, 유기 EL 디스플레이는 평판 디스플레이 소자 중 하나로 웨이퍼 상의 양전극층(anode layer)과 음전극층(cathode layer) 사이에 유기 전계 발광층인 유기 박막층을 개재하여 구성하며, 매우 얇은 두께의 매트릭스 형태를 이룬다.In general, an organic EL display is one of flat panel display devices, and is formed between an anode layer and a cathode layer on a wafer through an organic thin film layer, which is an organic electroluminescent layer, and forms a matrix having a very thin thickness.

이러한 유기 EL 디스플레이는 낮은 전압에서 구동이 가능하고, 박형 등의 장점이 있다. 또한, 좁은 광 시야각, 느린 응답 속도 등 종래에 LCD에서 문제로 지적되어 온 결점을 해결할 수 있으며, 다른 형태의 디스플레이와 비교하여, 특히, 중형 이하에서 다른 디스플레이와 동등하거나(예를 들어, "TFT LCD") 그 이상의 화질을 가질 수 있을 뿐만 아니라, 제조 공정이 단순하다는 점에서, 차세대 평판 디스플레이로 주목받고 있다.Such an organic EL display can be driven at a low voltage and has advantages such as thinness. In addition, it is possible to solve the drawbacks that have been conventionally pointed out in LCDs such as narrow wide viewing angles and slow response speeds, and compared to other forms of displays, in particular, below mid-size or other displays (eg, "TFT"). LCD ") has attracted attention as a next-generation flat panel display because it can not only have a higher image quality but also a simpler manufacturing process.

도 1은 일반적인 유기 EL 디스플레이 패널과 플렉시블 인쇄회로기판의 결합을 나타내는 도면이다.1 is a view showing a combination of a general organic EL display panel and a flexible printed circuit board.

도시된 바와 같이, 일반적인 유기 EL 디스플레이 패널은 패널부(11) 및 커버부(12)로 이루어지고, 상기 패널부(11)에는 다수의 화소로 이루어진 소자(14)가 구비되며, 상기 커버부(12)는 소자(14)를 커버하면서 패널부(11)와 접착된다.As shown in the drawing, a general organic EL display panel includes a panel portion 11 and a cover portion 12. The panel portion 11 is provided with elements 14 including a plurality of pixels, and the cover portion ( 12 is bonded to the panel portion 11 while covering the element 14.

이때, 통상 패널부(11)의 크기가 커버부(12)의 크기보다 큰데, 커버부(12)를 통해 커버되지 않는 패널부(11)에는 플렉시블 인쇄회로기판(15)과 접촉하기 위한 패드(13)가 형성된다.In this case, the size of the panel portion 11 is generally larger than that of the cover portion 12. The panel portion 11, which is not covered by the cover portion 12, has a pad for contacting the flexible printed circuit board 15 ( 13) is formed.

상기 패드(13)는 소자(14)와 전극으로 서로 연결되어 있고, 기판과 결합함으로써, 기판의 제어에 의해 소자가 작동하여 영상이 표현된다.The pad 13 is connected to each other by an element 14 and an electrode, and by combining with the substrate, the element is operated by the control of the substrate to display an image.

따라서, 플렉시블 인쇄회로기판(15)이 상기 패널부(11)의 패드(13)와 접촉된 상태에서 별도의 전원공급수단을 통해 전원이 공급되면, 다스플레이 패널을 통해 사용자가 시청이 가능해진다.Therefore, when the flexible printed circuit board 15 is supplied with power through a separate power supply means in contact with the pad 13 of the panel unit 11, the user can view the display panel through the display panel.

한편, 상기한 패널부(11)와 기판(15)의 결합상태에서 제품 생성시 플렉시블 인쇄회로기판(15)은 접히면서 커버부(12)의 상측에 위치하게 되는데, 이를 위해 플렉시블 인쇄회로기판(15) 상에는 벤딩부(16)가 형성되고, 상기 벤딩부(16) 부분이 접히면서 기판(15)의 일부가 커버부(12)의 상측에 위치하게 된다.On the other hand, the flexible printed circuit board 15 is located on the upper side of the cover portion 12 while being folded when the product is generated in the combined state of the panel unit 11 and the substrate 15, for this purpose, the flexible printed circuit board ( A bending part 16 is formed on the part 15, and a part of the substrate 15 is positioned above the cover part 12 while the bending part 16 is folded.

그러나, 상기한 벤딩부는 폭이 좁은 관계로 장기간 플렉시블 인쇄회로기판이 접혀 있는 상태를 유지하게 되면, 기판의 수명이 짧아지거나 불량이 발생하는 문제점이 있다.However, when the bending part maintains a state in which the flexible printed circuit board is folded for a long time due to its narrow width, the life of the substrate may be shortened or a defect may occur.

이에 본 발명은 상기와 같은 문제점들을 해소하기 위해 안출된 것으로서, 본 발명은 플렉시블 인쇄회로기판이 패널부의 전면으로 접착되도록 하여 패널부의 두께만큼의 벤딩 영역이 기판에 형성됨으로써, 기판의 불량률을 낮추어주고 수명을 연장시키는 것을 목적으로 한다.Accordingly, the present invention has been made to solve the above problems, the present invention is to allow the flexible printed circuit board to be bonded to the front surface of the panel portion to form a bending area equal to the thickness of the panel portion on the substrate, thereby lowering the defect rate of the substrate The purpose is to extend the life.

상기와 같은 목적을 달성하기 위한 본 발명은 패널부의 배면에 커버부의 전면이 부착되되, 상기 패널부의 전면에 패드가 형성되고, 상기 패드와 접합하는 플렉시블 인쇄회로기판이 패널부의 끝단부에서 굴곡되어 커버부의 배면에 위치하도록 하는 것을 특징으로 하는 유기 EL 디스플레이 패널과 플렉시블 인쇄회로기판의 결합구조를 제공한다.The present invention for achieving the above object is the front of the cover portion is attached to the back of the panel portion, the pad is formed on the front of the panel portion, the flexible printed circuit board bonded to the pad is bent at the end of the panel cover A coupling structure of an organic EL display panel and a flexible printed circuit board is provided so as to be located at the rear side of the part.

상기한 결합구조는 플렉시블 인쇄회로기판이 패널부의 두께만큼의 벤딩부 영역을 형성하기 때문에, 기판의 안정성이 제고되어 제품의 불량률을 낮추어주고 수명을 연장시켜주게 된다.Since the bonded structure of the flexible printed circuit board forms a bending area as much as the thickness of the panel part, the stability of the substrate is improved, thereby lowering the defective rate of the product and extending the service life.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 설명한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

또한, 본 실시예는 본 발명의 권리범위를 한정하는 것이 아니라 단지 예시로 제시된 것이며, 종래 구성과 동일한 부분은 동일한 부호 또는 명칭을 사용한다.In addition, this embodiment is presented by way of example only, not limiting the scope of the present invention, the same parts as the conventional configuration uses the same reference numerals or names.

그리고, 본 기술사상을 통해 구현되는 다양한 실시예가 있을 수 있다.In addition, there may be various embodiments implemented through the technical idea.

도 2는 본 발명에 따른 유기 EL 디스플레이 패널과 플렉시블 인쇄회로기판의 결합관계를 나타내는 사시도이고, 도 3은 도 2의 결합된 상태를 나타내는 측면도이다.FIG. 2 is a perspective view showing a coupling relationship between an organic EL display panel and a flexible printed circuit board according to the present invention, and FIG. 3 is a side view showing a coupled state of FIG.

도시한 바와 같이, 패널부(21)의 배면상에는 색상 표현을 위한 다수의 화소로 이루어진 소자(24)가 형성되고, 이러한 화소를 보호하기 위한 커버부(22)가 패널부(21)의 배면에 부착된다.As shown in the figure, an element 24 made up of a plurality of pixels for color expression is formed on the back of the panel portion 21, and a cover portion 22 for protecting such pixels is provided on the back of the panel portion 21. Attached.

그리고, 상기 패널부(21)의 전면에는 후술할 기판과 접촉하기 위한 패드(23) 가 형성되는데, 이러한 패드(23)는 소자(24)와 전극으로 서로 연결되어 있고 기판과 결합함으로써, 인쇄회로기판의 제어에 의해 소자가 작동하여 영상을 표현하게 된다.In addition, a pad 23 is formed on the front surface of the panel unit 21 to contact a substrate, which will be described later. The pad 23 is connected to each other by an element 24 and an electrode and is coupled to a substrate, thereby printing a circuit Under the control of the substrate, the device operates to represent an image.

한편, 연성 재질의 플렉시블 인쇄회로기판(25)의 일끝단부는 상기 패드(23)와 결합하고, 상기 플렉시블 인쇄회로기판(25)에 형성된 벤딩부(26)는 굴곡되어 커버부(21)의 배면에 위치한다.On the other hand, one end of the flexible printed circuit board 25 of the flexible material is coupled to the pad 23, the bending portion 26 formed on the flexible printed circuit board 25 is bent to the back of the cover portion 21 Located in

상기와 같은 유기 EL 디스플레이 패널과 플렉시블 인쇄회로기판의 결합과정을 설명하면 다음과 같다.Referring to the coupling process of the organic EL display panel and the flexible printed circuit board as described above are as follows.

먼저, 패널부(21)와 커버부(22)를 결합시키고, 패널부(21)의 전면에 형성되는 패드(23)와 플렉시블 인쇄회로기판(25)을 결합시킨다.First, the panel unit 21 and the cover unit 22 are coupled, and the pad 23 formed on the front surface of the panel unit 21 and the flexible printed circuit board 25 are coupled.

상기한 상태에서, 상기 플렉시블 인쇄회로기판(25)에 형성된 벤딩부(26)를 이용하여 기판을 절곡시켜 플렉시블 인쇄회로기판(25)이 커버부(22)의 배면에 위치하도록 한다.In the above state, the substrate is bent using the bending part 26 formed on the flexible printed circuit board 25 so that the flexible printed circuit board 25 is positioned on the rear surface of the cover part 22.

이때, 상기 벤딩부(26)는 플렉시블 인쇄회로기판(25)의 설계시 글라스의 두께를 제고하여 적절하게 폭을 설정하는 것이 바람직하다.In this case, it is preferable that the bending part 26 sets the width appropriately by increasing the thickness of the glass when designing the flexible printed circuit board 25.

즉, 종래 도 1의 도면과 같이 패널부의 크기가 커버부 보다 큰 경우, 벤딩부(26)를 패널부의 두께만큼 설계하면, 플렉시블 인쇄회로기판(25)은 패널부의 측면을 따라 접히면서 커버부에 위치하게 되므로, 벤딩부의 두께에 여유가 생겨 기판의 불량률을 낮출 수 있게 된다.That is, when the size of the panel portion is larger than the cover portion, as shown in FIG. 1, when the bending portion 26 is designed as the thickness of the panel portion, the flexible printed circuit board 25 is folded along the side surface of the panel portion, Since the position is located, the thickness of the bent portion is provided to reduce the defective rate of the substrate.

그리고, 패드(23)가 패널부(21)의 전면에 형성되는 경우, 패널부,커버부 (21,22)의 크기가 동일해도 무방하므로, 도 3과 같이 벤딩부(26)를 패널부 및 커버부(21,22)의 두께만큼 되도록 설계하면, 플렉시블 인쇄회로기판(25)은 패널부와 커버부(21,22)의 측면을 따라 접히면서 커버부의 배면에 위치하게 되므로, 벤딩부의 두께에 여유가 생겨 기판의 불량률을 낮출 수 있게 된다.In addition, when the pads 23 are formed on the front surface of the panel portion 21, the panel portions and the cover portions 21 and 22 may have the same size. When designed to be as thick as the cover portions 21 and 22, the flexible printed circuit board 25 is located on the back side of the cover portion while being folded along the side surfaces of the panel portion and the cover portions 21 and 22. Clearances can be made to lower the defect rate of the substrate.

상기한 바와 같이 본 발명에 따른 유기 EL 디스플레이 패널과 플렉시블 인쇄회로기판의 결합구조는 기판이 패널부의 전면과 결합하면서 패널부 또는 패널부와 커버부의 두께만큼의 벤딩부를 가지도록 구부러짐으로써, 좁은 폭의 벤등부에 의한 기판의 내구성 저하를 방지하여 기판 수명을 연장시키고 수명을 연장시키는 효과가 있다.As described above, the coupling structure of the organic EL display panel and the flexible printed circuit board according to the present invention is bent so as to have a bending portion equal to the thickness of the panel portion or the panel portion and the cover portion while the substrate is bonded to the front surface of the panel portion. It is possible to prevent the degradation of the substrate due to the back portion to extend the life of the substrate and to extend the life.

Claims (1)

패널부의 배면에 커버부의 전면이 부착되되, 상기 패널부의 전면에 패드가 형성되고, 상기 패드와 접합하는 플렉시블 인쇄회로기판이 패널부의 끝단부에서 굴곡되어 커버부의 배면에 위치하도록 하는 것을 특징으로 하는 유기 EL 디스플레이 패널과 플렉시블 인쇄회로기판의 결합구조.The front of the cover portion is attached to the back of the panel portion, the pad is formed on the front of the panel portion, the flexible printed circuit board to be bonded to the pad is bent at the end of the panel portion is characterized in that the organic Combined structure of EL display panel and flexible printed circuit board.
KR1020050031452A 2005-04-15 2005-04-15 A connecting structure of organic electro display panel and flexible pcb KR100732558B1 (en)

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KR20110067448A (en) * 2009-12-14 2011-06-22 엘지디스플레이 주식회사 Display device and manufacturing method of the same

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KR20110067448A (en) * 2009-12-14 2011-06-22 엘지디스플레이 주식회사 Display device and manufacturing method of the same

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