KR20100018428A - Substrate for driving display device and display set having the same - Google Patents

Substrate for driving display device and display set having the same Download PDF

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Publication number
KR20100018428A
KR20100018428A KR1020080077184A KR20080077184A KR20100018428A KR 20100018428 A KR20100018428 A KR 20100018428A KR 1020080077184 A KR1020080077184 A KR 1020080077184A KR 20080077184 A KR20080077184 A KR 20080077184A KR 20100018428 A KR20100018428 A KR 20100018428A
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KR
South Korea
Prior art keywords
ground
folding
driving
extension part
extension
Prior art date
Application number
KR1020080077184A
Other languages
Korean (ko)
Inventor
최진우
Original Assignee
엘지이노텍 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 엘지이노텍 주식회사 filed Critical 엘지이노텍 주식회사
Priority to KR1020080077184A priority Critical patent/KR20100018428A/en
Publication of KR20100018428A publication Critical patent/KR20100018428A/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements

Abstract

A driving substrate for driving a display device and a display set including the same are disclosed. The driving substrate includes a body portion on which driving elements for driving the display device are mounted; And a connection part connected to the body part, the connection part extending from the body part; A folding part extending from the extension part and folding; A ground portion extending from the folding portion and facing the extension portion; And a reinforcing plate interposed between the extension part and the ground part.

Description

A driving substrate for driving a display device and a display set including the same {SUBSTRATE FOR DRIVING DISPLAY DEVICE AND DISPLAY SET HAVING THE SAME}

Embodiments relate to a driving substrate for driving a display device and a display set including the same.

As information processing technology develops, display devices such as LCD, PDP and AMOLED are widely used. In particular, LCDs and AMOLEDs are used as devices for displaying images of portable mobile communication devices.

In this case, when an electric shock such as static electricity is applied to the portable mobile communication device, the LCD may be damaged.

Embodiments provide a driving substrate and a display set capable of driving a display device and efficiently reducing an electric shock applied to the display device.

In example embodiments, a driving substrate may include: a body part in which driving elements for driving a display device are mounted; And a connection part connected to the body part, wherein the connection part extends from the body part; A folding part extending from the extension part and folding; A ground part extending from the folding part and facing the extension part; And a reinforcing plate interposed between the extension part and the ground part.

The display set according to the embodiment includes a display panel, the driving substrate, and a system connected to the driving substrate.

Since the driving substrate according to the embodiment has a folding structure, the ground pad can be formed in the ground portion. That is, since the extension part is formed with connection pads and circuits for connecting to the substrate on which the system is formed, and the ground pad is formed in the ground part, a ground pad having a large area can be formed.

Therefore, the driving substrate according to the embodiment can easily discharge the static electricity applied to the display device through the ground pad or the ground structure connected to the ground pad.

Therefore, the driving substrate according to the embodiment can protect the display device from electric shock. In addition, the display set according to the embodiment is resistant to electric shock.

In the description of the embodiments, it is described that each panel, part, layer, substrate or pad or the like is formed “on” or “under” of each panel, part, layer, substrate or pad or the like. In the case, “on” and “under” include both being formed “directly” or “indirectly” through other components. In addition, the criteria for the top or bottom of each component will be described with reference to the drawings. The size of each component in the drawings may be exaggerated for description, and does not mean a size that is actually applied.

1 is a perspective view illustrating a liquid crystal display module according to an embodiment. 2 is an exploded perspective view showing the connecting portion. 3 is a perspective view showing the connection portion. FIG. 4 is a cross-sectional view illustrating a cross section taken along line AA ′ in FIG. 3.

Referring to FIG. 1, the liquid crystal display module includes a backlight unit, a liquid crystal panel 20, and a driving substrate 30.

The backlight unit generates light and emits the light toward the liquid crystal panel 20. The backlight unit may include a mold frame 11, a reflective sheet, a light guide plate, a light emitting diode, an optical sheet, and the like.

The liquid crystal panel 20 is disposed on the backlight unit. The liquid crystal panel 20 is disposed inside the mold frame 11. The liquid crystal panel 20 displays an image by adjusting the intensity of light passing through each pixel.

The liquid crystal panel 20 includes a TFT substrate, a color filter substrate, a liquid crystal layer interposed between the TFT substrate and the color filter substrate, and polarization filters disposed below the TFT substrate and on the color filter substrate.

The driving substrate 30 is connected to the liquid crystal panel 20. The driving substrate 30 mounts driving elements for driving the liquid crystal panel 20. The driving substrate 30 is a flexible printed circuit board (FPCB). The driving substrate 30 includes a body 300 and a connection 400.

The body portion 300 is connected to the liquid crystal panel 20. Driving elements for driving the liquid crystal panel 20 may be mounted on the body portion 300.

The connection part 400 is connected to the body part 300. In addition, the connection unit 400 is connected to the cellular phone PCB in which the system for controlling the liquid crystal display module according to the embodiment is embedded. The connection part 400 has a folded structure. The connection part 400 includes an extension part 410, a folding part 420, a ground part 430, and a reinforcing plate 440.

The extension part 410 extends from the side of the body part 300. The extension part 410 is integrally formed with the body part 300. The extension part 410 includes a connection pad 411. The driving substrate 30 is connected to the mobile phone PCB through the connection pad 411.

The folding part 420 extends laterally from the extension part 410. The thickness T2 of the folding part 420 is smaller than the thickness T1 of the extension part 410. In addition, the width W2 of the folding part 420 is smaller than the width W1 of the extension part 410 and smaller than the width W3 of the ground part 430.

The folding unit 420 is folded. In this case, since the folding part 420 has a thickness T2 thinner than the extension part 410 and has a smaller width W2 than the extension part 410 and the ground part 430, the folding process Less cracking occurs at

Through the wires formed inside the folding unit 420, the folding unit 420 electrically connects the ground unit 430 and the extension unit 410.

The ground part 430 extends from the folding part 420 and faces the extension part 410. The ground part 430 includes a ground pad 431. The ground pad 431 is electrically connected to the extension part 410 through a wire formed in the folding part 420.

The driving substrate 30 includes a top layer 31 and a bottom layer 32. In this case, the top layer 31 includes a first wiring layer 33, and the bottom layer 32 includes a second wiring layer 34. In addition, the driving substrate 30 may include a first passivation layer 35 disposed on the first wiring layer 33, a second passivation layer disposed between the first wiring layer 33 and the second wiring layer 34. 36 and a third passivation layer 37 disposed under the second wiring layer 34.

At this time, the body portion 300 and the extension portion 410 is composed of the top layer 31 and the bottom layer 32, the folding portion 420 and the ground portion 430 is the top layer It consists of 31 only.

The folding part 420 extends from the top layer 31 of the extension part 410.

In addition, the body part 300, the extension part 410, the folding part 420, and the ground part 430 are electrically connected by the first wiring layer 33.

The connection pad 411 and the ground pad 431 are part of the first wiring layer 33 exposed to the outside by removing a portion of the first passivation layer 35.

The reinforcement plate 440 is interposed between the extension part 410 and the ground part 430. Examples of the material used as the reinforcing plate 440 include a metal or a polyimide (PI) resin.

The reinforcing plate 440 is attached to the ground portion 430 and the extension portion 410 by double-sided tapes (441, 442). The reinforcement plate 440 reinforces the strength of the connection part 400.

Electrical shock such as static electricity applied to the liquid crystal panel 20 is applied to the ground pad 431 through the first wiring layer 33 or the second wiring layer 34. In this case, the ground pad 431 may absorb an electrical shock or transmit an electrical shock to a ground structure connected to the ground pad 431.

In addition, since the connection part 400 has a folding structure, the ground pad 431 may be wider. That is, a circuit pattern for connecting to the connection pad 411 and the mobile phone PCB may be formed in the extension part 410, and only the ground pad 431 may be formed in the ground part 430.

In addition, since the ground pad 431 and the ground structure are directly connected to each other, an electric shock applied to the liquid crystal display module may be more efficiently emitted. When the ground pad and the ground structure are connected by another member, for example, a reinforcing plate or the like, the contact resistance between the ground pad and the ground structure is increased than in the present embodiment. In this case, the ground structure may be a case for accommodating the liquid crystal display module and the phone PCB.

Accordingly, the driving substrate 30 can efficiently discharge the electric shock applied to the liquid crystal display module, and the liquid crystal display module according to the embodiment is resistant to electric shock such as static electricity.

A mobile phone set including a liquid crystal display module and the mobile phone PCB according to the embodiment is implemented. In this case, the system embedded in the cellular phone PCB may drive not only the liquid crystal display module but also a keypad and a communication device. In addition, the mobile phone set is a display set having a display function for displaying an image.

In this case, the mobile phone set including the liquid crystal display module according to the embodiment may efficiently discharge an electric shock such as static electricity by the driving substrate 30.

Although the above description has been made based on the embodiments, these are merely examples and are not intended to limit the present invention. Those skilled in the art to which the present invention pertains may not have been exemplified above without departing from the essential characteristics of the present embodiments. It will be appreciated that many variations and applications are possible. For example, each component specifically shown in the embodiment can be modified. And differences relating to these modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

1 is a perspective view illustrating a liquid crystal display module according to an embodiment.

2 is an exploded perspective view showing the connecting portion.

3 is a perspective view showing the connection portion.

FIG. 4 is a cross-sectional view illustrating a cross section taken along line AA ′ in FIG. 3.

Claims (10)

A body part on which driving elements for driving the display device are mounted; And It includes a connecting portion connected to the body portion, The connecting portion An extension part extending from the body part; A folding part extending from the extension part and folding; A ground part extending from the folding part and facing the extension part; And And a reinforcing plate interposed between the extension part and the ground part. The driving substrate of claim 1, wherein the extension part comprises a top layer including a first wiring layer and a bottom layer including a second wiring layer. The driving substrate of claim 2, wherein the folding part extends from the top layer. The driving substrate of claim 3, wherein the ground part is exposed to the outside and includes a ground pad made of a conductor. The driving substrate of claim 4, wherein the folding part comprises a wiring for connecting the extension part and the ground pad. The driving substrate of claim 1, wherein the folding portion has a width smaller than that of the ground portion. The driving substrate of claim 1, wherein the folding part has a thickness smaller than that of the extension part. Display panel; A body part connected to the display panel and having driving elements mounted thereon to drive the display panel; And a driving board including a connection part connected to the body part. And A system connected to the connection, The connecting portion An extension part extending from the body part; A folding part extending from the extension part and folding; A ground part extending from the folding part and facing the extension part; And And a reinforcing plate interposed between the extension part and the ground part. The display set of claim 8, further comprising a ground structure connected to the ground portion. The display set of claim 9, wherein the ground structure is a case accommodating the display panel, the driving substrate, and the system.
KR1020080077184A 2008-08-06 2008-08-06 Substrate for driving display device and display set having the same KR20100018428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080077184A KR20100018428A (en) 2008-08-06 2008-08-06 Substrate for driving display device and display set having the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080077184A KR20100018428A (en) 2008-08-06 2008-08-06 Substrate for driving display device and display set having the same

Publications (1)

Publication Number Publication Date
KR20100018428A true KR20100018428A (en) 2010-02-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160149355A (en) * 2015-06-17 2016-12-28 삼성디스플레이 주식회사 Display device
US11527597B2 (en) 2019-09-09 2022-12-13 Samsung Display Co., Ltd. Display device having conductive tape connecting window or display panel to metal layer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160149355A (en) * 2015-06-17 2016-12-28 삼성디스플레이 주식회사 Display device
US11527597B2 (en) 2019-09-09 2022-12-13 Samsung Display Co., Ltd. Display device having conductive tape connecting window or display panel to metal layer

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