JP2007108346A - Display device - Google Patents

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JP2007108346A
JP2007108346A JP2005298019A JP2005298019A JP2007108346A JP 2007108346 A JP2007108346 A JP 2007108346A JP 2005298019 A JP2005298019 A JP 2005298019A JP 2005298019 A JP2005298019 A JP 2005298019A JP 2007108346 A JP2007108346 A JP 2007108346A
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cover plate
frame member
display device
chassis
projections
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JP2005298019A
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Japanese (ja)
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Koichi Matsumoto
浩一 松本
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Sharp Corp
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Sharp Corp
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Priority to JP2005298019A priority Critical patent/JP2007108346A/en
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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device that can suppress the resonance of a cover plate of a chassis that supports backlight section due to the vibration of the backlight section. <P>SOLUTION: The chassis supporting a backlight section disposed in the backside of a display unit, having an image display screen in the front side, is constituted of a frame member 31 in a rectangular parallelepiped form, a cover plate 32 closing an opening of the frame member 31, and reinforcing bars 33, 34 bonded to a plurality of circumference positions of the frame member 31, wherein first projections 37, 37 are formed protruding at both the ends in the longitudinal direction of the reinforcing bars 33, 34, and second projections 38 shorter than the first projections 37 are formed between the first projections 37, 37. By bonding the cover plate 32 to the top ends of the first projections 37, 37 and the second projections 38, the cover plate 32 is warped and is suppressed from resonating due to the vibration of the backlight section. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は液晶表示装置等の表示装置に関する。   The present invention relates to a display device such as a liquid crystal display device.

テレビ等の表示装置は、画像を表示する画像表示面を前側に有する表示部の裏側にバックライト部と、該バックライト部を支持するシャーシと、該シャーシの後側に取着された電気部品とを備える（例えば、特許文献１参照。）。   A display device such as a television includes a backlight unit on the back side of a display unit having an image display surface for displaying an image on the front side, a chassis that supports the backlight unit, and an electrical component attached to the rear side of the chassis. (For example, refer to Patent Document 1).

バックライト部は両端部に電極を有する複数の蛍光管を備え、該蛍光管が表示部のパネルと平行的に並置されており、夫々の蛍光管の電極にインバータ回路基板が接続され、パルス幅変調信号により明るさが制御されるように構成されている。また、シャーシは直方体をなし前記蛍光管の両端部を支持する枠部材、及び該枠部材の一端を閉鎖するアルミニウム製の蓋板を備える。
特開２００２−６７５５号公報 The backlight unit includes a plurality of fluorescent tubes having electrodes at both ends, the fluorescent tubes are juxtaposed in parallel with the panel of the display unit, and an inverter circuit board is connected to the electrodes of each fluorescent tube, and the pulse width The brightness is controlled by the modulation signal. The chassis has a rectangular parallelepiped shape and includes a frame member that supports both ends of the fluorescent tube, and an aluminum lid plate that closes one end of the frame member.
JP 2002-6755 A

ところで、バックライト部を支持するシャーシの蓋板は、シャーシの軽量化を図るべくアルミニウム板により形成されているが、この蓋板の周縁が結合された枠部材内には前記表示部の光源であるバックライト部が配置支持されるため、蛍光管が放射する放射光により蓋板が熱膨張し、変形する。また、表示装置が比較的大形の場合、蛍光管の明るさがパルス幅変調信号により制御されるとき蛍光管が振動し、該蛍光管の振動がシャーシに伝播され、熱膨張により変形した前記蓋板が共振することになる。   By the way, the cover plate of the chassis that supports the backlight unit is formed of an aluminum plate in order to reduce the weight of the chassis. The light source of the display unit is provided in the frame member to which the periphery of the cover plate is coupled. Since a certain backlight portion is arranged and supported, the cover plate is thermally expanded and deformed by the radiated light emitted from the fluorescent tube. Further, when the display device is relatively large, the fluorescent tube vibrates when the brightness of the fluorescent tube is controlled by a pulse width modulation signal, and the vibration of the fluorescent tube is propagated to the chassis and deformed by thermal expansion. The lid plate resonates.

本発明は斯かる事情に鑑みてなされたものであり、主たる目的はバックライト部を支持するシャーシを、直方体をなす枠部材と、該枠部材の開放部を閉鎖する蓋板とを備え、該蓋板を反らせることにより、バックライト部の振動により蓋板が共振するのを抑制できる表示装置を提供することにある。   The present invention has been made in view of such circumstances, and a main object thereof is to provide a chassis that supports the backlight portion, a frame member that forms a rectangular parallelepiped, and a lid plate that closes an open portion of the frame member, An object of the present invention is to provide a display device that can suppress the resonance of the cover plate due to the vibration of the backlight unit by warping the cover plate.

また、他の目的は枠部材の複数の周方向位置に結合された補強桟を設け、蓋板を反らせる手段を補強桟に設けることにより、枠部材及び蓋板のバックライト部との共振を低減することができる表示装置を提供することにある。   Another object is to reduce the resonance between the frame member and the backlight portion of the cover plate by providing reinforcing bars coupled to a plurality of circumferential positions of the frame member and providing means for deflecting the cover plate on the reinforcing bars. It is an object of the present invention to provide a display device that can do the above.

また、他の目的は補強桟の長手方向両側に二つの第１突起を設け、第１突起間に該第１突起より短い長さの第２突起を設け、第１突起及び第２突起の先端に蓋板を結合することにより、蓋板を簡易に反らせることができる表示装置を提供することにある。   Another object is to provide two first protrusions on both sides in the longitudinal direction of the reinforcing bar, and to provide a second protrusion having a length shorter than the first protrusion between the first protrusions, and to the tips of the first protrusion and the second protrusion. An object of the present invention is to provide a display device that can easily warp the lid plate by coupling the lid plate to the lid.

本発明に係る表示装置は、前側に画像表示面を有する表示部の後側に配されたバックライト部と、該バックライト部を支持するシャーシとを備える表示装置において、前記シャーシは、直方体をなす枠部材と、該枠部材の開放部を閉鎖する蓋板とを備え、前記蓋板は熱膨張による変形を抑制すべく反っていることを特徴とする。   A display device according to the present invention is a display device including a backlight unit disposed on the rear side of a display unit having an image display surface on the front side, and a chassis that supports the backlight unit, and the chassis includes a rectangular parallelepiped. And a cover plate that closes an open portion of the frame member. The cover plate is warped to suppress deformation due to thermal expansion.

この発明にあっては、シャーシの蓋板は強制的に反らしてあり、予め変形させて面方向の張力を加えてあるため、バックライト部が発生する熱により蓋板が変形するのを抑制できる。従って、バックライト部の振動により蓋板が共振するのを抑制でき、蓋板の共振による音鳴りを低減できる。   In the present invention, the cover plate of the chassis is forcibly warped, and since it is deformed in advance and is applied with a tension in the surface direction, the cover plate can be prevented from being deformed by heat generated by the backlight portion. . Therefore, it is possible to suppress the resonance of the cover plate due to the vibration of the backlight portion, and it is possible to reduce the sound produced by the resonance of the cover plate.

また、本発明に係る表示装置は、前記シャーシは、前記枠部材の複数の周方向位置に結合された補強桟を備え、前記蓋板を反らせる手段を前記補強桟に設けてあることを特徴とする。   Further, in the display device according to the present invention, the chassis includes a reinforcing bar coupled to a plurality of circumferential positions of the frame member, and the reinforcing bar is provided with means for warping the lid plate. To do.

この発明にあっては、シャーシの枠部材、及び蓋板を補強桟により補強することができる。従って、バックライト部の振動により枠部材及び蓋板が振動するのを抑制でき、枠部材及び蓋板のバックライト部との共振を低減することができ、共振による音鳴りをより一層低減できる。   In this invention, the frame member of the chassis and the lid plate can be reinforced by the reinforcing bar. Therefore, it is possible to suppress the vibration of the frame member and the cover plate due to the vibration of the backlight portion, it is possible to reduce the resonance of the frame member and the cover plate with the backlight portion, and to further reduce the noise caused by the resonance.

また、本発明に係る表示装置は、前記手段は、前記補強桟の長手方向両側に突設され先端が前記蓋板に結合された二つの第１突起と、第１突起間に該第１突起より短い長さに突設され先端が前記蓋板に結合された第２突起を有することを特徴とする。   Further, in the display device according to the present invention, the means includes two first protrusions projecting on both sides in the longitudinal direction of the reinforcing bar and having tips connected to the lid plate, and the first protrusion between the first protrusions. It has a 2nd processus | protrusion provided in the shorter length, and the front-end | tip was couple | bonded with the said cover plate.

この発明にあっては、補強桟を枠部材に結合することにより蓋板を反らせる第１突起及び第２突起を組込むことができ、しかも、第１突起及び第２突起の先端に蓋板を結合することにより該蓋板を反らせることができるとともに、この反り状態を維持することができるため、蓋板を簡易に反らせることができる。従って、蓋板の共振による音鳴りを低減できる割に表示装置のコストを低減できる表示装置を提供することにある。   In this invention, the first projection and the second projection that warp the lid plate can be incorporated by coupling the reinforcing bar to the frame member, and the lid plate is coupled to the tips of the first projection and the second projection. By doing so, the cover plate can be warped and the warped state can be maintained, so that the cover plate can be easily warped. Accordingly, it is an object of the present invention to provide a display device capable of reducing the cost of the display device while reducing the noise caused by the resonance of the cover plate.

以上詳述したように本発明によれば、シャーシの蓋板を反らし、予め変形させてあるため、バックライト部の振動により蓋板が共振するのを抑制でき、蓋板の共振による音鳴りを低減できる。   As described above in detail, according to the present invention, since the cover plate of the chassis is warped and deformed in advance, it is possible to suppress the resonance of the cover plate due to the vibration of the backlight portion, and the sound due to the resonance of the cover plate can be suppressed. Can be reduced.

また、本発明によれば、バックライト部の振動により枠部材及び蓋板が振動するのを抑制でき、枠部材及び蓋板のバックライト部との共振を低減することができ、共振による音鳴りをより一層低減できる。   Further, according to the present invention, it is possible to suppress the vibration of the frame member and the cover plate due to the vibration of the backlight portion, it is possible to reduce the resonance between the frame member and the backlight portion of the cover plate, and the sound due to the resonance. Can be further reduced.

また、本発明によれば、補強桟に突設された第１突起及び第２突起により蓋板を簡易に反らせることができ、蓋板の共振による音鳴りを低減できる割に表示装置のコストを低減できる。   In addition, according to the present invention, the cover plate can be easily warped by the first protrusion and the second protrusion provided on the reinforcing bar, and the cost of the display device can be reduced while the noise caused by the resonance of the cover plate can be reduced. Can be reduced.

以下本発明をその実施の形態を示す図面に基づいて詳述する。図１は本発明に係る表示装置のシャーシの構成を示す概略図、図２は要部の構成を示す断面図、図３は表示装置の一部を拡大した断面図、図４は表示装置の全体の構成を示す分解した概略斜視図である。   Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. 1 is a schematic diagram showing the configuration of a chassis of a display device according to the present invention, FIG. 2 is a cross-sectional view showing the configuration of a main part, FIG. 3 is an enlarged cross-sectional view of a part of the display device, and FIG. It is the disassembled schematic perspective view which shows the whole structure.

図示した表示装置はテレビ画像を表示し、略直方体をなす表示部１と、該表示部１の後側に配されたバックライト部２と、該バックライト部２を支持するアルミニウム製のシャーシ３と、該シャーシ３の後側に取着された電気部品４と、表示部１の前側周縁部を取囲むフロントキャビネット５と、バックライト部２及びシャーシ３の後側を覆うバックキャビネット６と、シャーシ３に取着され表示部１及びバックライト部２を起立状態で支持したスタンド７とを備える液晶テレビである。   The illustrated display device displays a television image, a display unit 1 having a substantially rectangular parallelepiped shape, a backlight unit 2 disposed on the rear side of the display unit 1, and an aluminum chassis 3 that supports the backlight unit 2. An electrical component 4 attached to the rear side of the chassis 3, a front cabinet 5 that surrounds the front peripheral edge of the display unit 1, a back cabinet 6 that covers the backlight unit 2 and the rear side of the chassis 3, The liquid crystal television includes a stand 7 attached to the chassis 3 and supporting the display unit 1 and the backlight unit 2 in an upright state.

表示部１は前側に画像表示面を有する液晶のパネル１ａと、該パネル１ａの後側に配置された光学シート１ｂ及び拡散板１ｃを有する。   The display unit 1 includes a liquid crystal panel 1a having an image display surface on the front side, an optical sheet 1b and a diffusion plate 1c arranged on the rear side of the panel 1a.

バックライト部２は両端部に電極を有する複数の蛍光管２ａ及び蛍光管２ａが放射した光を前記拡散板１ｃ側に反射させる反射板２ｂを備え、蛍光管２ａがパネル１ａと平行的に並置され、夫々の蛍光管２ａの両端部がシャーシ３に支持されており、また、夫々の蛍光管２ａの電極にインバータ回路基板が接続され、パルス幅変調信号により明るさが制御されるように構成されている。   The backlight unit 2 includes a plurality of fluorescent tubes 2a having electrodes at both ends and a reflecting plate 2b that reflects light emitted from the fluorescent tubes 2a toward the diffusion plate 1c, and the fluorescent tubes 2a are juxtaposed in parallel with the panel 1a. Further, both ends of each fluorescent tube 2a are supported by the chassis 3, and an inverter circuit board is connected to the electrode of each fluorescent tube 2a so that the brightness is controlled by a pulse width modulation signal. Has been.

シャーシ３は直方体をなすアルミニウム製の枠部材３１と、周縁部が枠部材３１に結合され該枠部材３１の後側端を閉鎖するアルミニウム製の蓋板３２と、枠部材３１の中央側に離隔配置され、両端が枠部材３１の対向する二辺部に結合された二つの第１の補強桟３３，３３と、枠部材３１の他の二辺部及び第１の補強桟３３，３３の間に配置され、両端が二辺部及び第１の補強桟３３，３３に結合された帯板状の第２の補強桟３４，３４…と、第１の補強桟３３，３３の両端部間に結合された二つの補強板３５，３５と、補強板３５，３５間に結合された第３の補強桟３６とを有する。第１〜第３の補強桟３３，３４，３６及び補強板３５は蓋板３２の後側に配されている。   The chassis 3 is separated from an aluminum frame member 31 having a rectangular parallelepiped shape, an aluminum lid plate 32 whose peripheral portion is coupled to the frame member 31 and closing a rear end of the frame member 31, and a center side of the frame member 31. Between the two first reinforcing bars 33 and 33 arranged at both ends and coupled to the two opposite sides of the frame member 31, and between the other two sides of the frame member 31 and the first reinforcing bars 33 and 33 Between the both ends of the first reinforcing bars 33, 33 and the second reinforcing bars 34, 34. Two reinforcing plates 35 and 35 coupled to each other and a third reinforcing bar 36 coupled between the reinforcing plates 35 and 35 are provided. The first to third reinforcing bars 33, 34, 36 and the reinforcing plate 35 are disposed on the rear side of the lid plate 32.

第２の補強桟３４，３４…は帯板状に形成されており、該補強桟３４，３４…の長手方向両側に二つの第１突起３７，３７が突設され、第１突起３７，３７間に第１突起３７，３７より短い長さの第２突起３８が突設されており、第１突起３７，３７及び第２突起３８の先端に蓋板３２の後面を結合手段により結合し、該蓋板３２を強制的に反らせて蓋板３２の熱膨張による変形を抑制するように面方向の張力を加え、蓋板３２の熱膨張を抑制するようにしてある。第１突起３７，３７及び第２突起３８は補強桟３４に明けられた貫通孔にカシメ加工により固定されているが、その他、補強桟３４と一体に成形された構成としてもよいし、また、補強桟３４に溶接された構成としてもよい。また、蓋板３２は第１突起３７，３７及び第２突起３８に溶着により結合してあるが、その他、カシメ加工、クランプ等の結合手段により結合してもよい。
また、第１及び第３の補強桟３３，３６にも第１突起３７，３７及び第２突起３８が設けられており、夫々の第１突起３７，３７、第２突起３８の先端が蓋板３２の後面に結合され、蓋板３２を反らしている。 The second reinforcing bars 34, 34... Are formed in a band plate shape, and two first protrusions 37, 37 are provided on both sides in the longitudinal direction of the reinforcing bars 34, 34. A second projection 38 having a length shorter than the first projections 37 and 37 is provided therebetween, and the rear surface of the lid plate 32 is coupled to the tips of the first projections 37 and 37 and the second projection 38 by coupling means. The cover plate 32 is forcibly warped to apply surface tension so as to suppress deformation due to thermal expansion of the cover plate 32, thereby suppressing thermal expansion of the cover plate 32. The first protrusions 37 and 37 and the second protrusion 38 are fixed to the through-holes opened in the reinforcing bar 34 by caulking. Alternatively, the first protrusions 37 and 37 and the second protrusion 38 may be formed integrally with the reinforcing bar 34. A configuration welded to the reinforcing bar 34 may be adopted. Further, the lid plate 32 is coupled to the first projections 37, 37 and the second projection 38 by welding, but may be coupled by other coupling means such as caulking and clamping.
The first and third reinforcing bars 33, 36 are also provided with first protrusions 37, 37 and second protrusions 38, and the tips of the first protrusions 37, 37 and the second protrusions 38 are the cover plates. The cover plate 32 is warped by being coupled to the rear surface of the cover 32.

電気部品４はインバータ回路基板及び電源基板等を有し、蓋板３２の裏面に取着され、前記インバータ回路基板及び電源基板に前記電源線が接続されている。   The electric component 4 has an inverter circuit board, a power supply board, and the like, is attached to the back surface of the cover plate 32, and the power supply line is connected to the inverter circuit board and the power supply board.

以上のように構成された表示装置のバックライト部２はシャーシ３の枠部材３１内に支持されている。シャーシ３は枠部材３１が第１〜第３の補強桟３３，３４，３６及び補強板３５により補強されているため、パルス幅変調信号により蛍光管２ａの明るさが制御されるとき、該蛍光管２ａが振動するとしても、枠部材３１の共振を抑制することができ、しかも、周縁部が枠部材３１に結合された蓋板３２の中途は、第１〜第３の補強桟３３，３４，３６に設けられた第１突起３７，３７及び第２突起３８の先端に結合されて反っており面方向の張力が加えられているため、蛍光管２ａの放射光による蓋板３２の熱膨張を抑制できる。従って、蛍光管２ａの振動により蓋板３２が共振するのを低減でき、共振による音鳴りを低減できる。   The backlight unit 2 of the display device configured as described above is supported in the frame member 31 of the chassis 3. Since the frame member 31 of the chassis 3 is reinforced by the first to third reinforcing bars 33, 34, and 36 and the reinforcing plate 35, when the brightness of the fluorescent tube 2a is controlled by a pulse width modulation signal, Even if the tube 2a vibrates, the resonance of the frame member 31 can be suppressed, and the middle of the cover plate 32 whose peripheral portion is coupled to the frame member 31 is the first to third reinforcing bars 33 and 34. , 36 are coupled to the tips of the first projections 37, 37 and the second projection 38, and are warped and applied with a tension in the surface direction, so that the thermal expansion of the cover plate 32 due to the emitted light of the fluorescent tube 2a. Can be suppressed. Therefore, it is possible to reduce the resonance of the cover plate 32 due to the vibration of the fluorescent tube 2a, and it is possible to reduce the noise caused by the resonance.

尚、以上説明した実施の形態の蓋板３２はアルミニウム製であるが、その他蓋板３２は例えば板厚１〜２の鉄板であってもよい。また、シャーシ３の補強桟の個数、及び配置形態は特に制限されない。   In addition, although the cover plate 32 of embodiment described above is a product made from aluminum, the other cover plate 32 may be a steel plate of plate | board thickness 1-2, for example. Further, the number of reinforcing bars of the chassis 3 and the arrangement form are not particularly limited.

本発明に係る表示装置のシャーシの構成を示す概略図である。It is the schematic which shows the structure of the chassis of the display apparatus which concerns on this invention. 本発明に係る表示装置の要部の構成を示す断面図である。It is sectional drawing which shows the structure of the principal part of the display apparatus which concerns on this invention. 本発明に係る表示装置の一部を拡大した断面図である。It is sectional drawing to which some display apparatuses based on this invention were expanded. 本発明に係る表示装置の全体の構成を示す分解した概略斜視図である。1 is an exploded schematic perspective view showing an overall configuration of a display device according to the present invention.

符号の説明Explanation of symbols

１ 表示部
２ バックライト部
３ シャーシ
３１ 枠部材
３２ 蓋板
３３ 第１の補強桟（補強桟）
３４ 第２の補強桟（補強桟）
３６ 第３の補強桟（補強桟）
３７ 第１突起
３８ 第２突起 DESCRIPTION OF SYMBOLS 1 Display part 2 Backlight part 3 Chassis 31 Frame member 32 Cover plate 33 1st reinforcement bar (reinforcement bar)
34 Second reinforcement bar (Reinforcement bar)
36 Third reinforcing bar (Reinforcing bar)
37 1st protrusion 38 2nd protrusion

Claims (3)

前側に画像表示面を有する表示部の後側に配されたバックライト部と、該バックライト部を支持するシャーシとを備える表示装置において、前記シャーシは、直方体をなす枠部材と、該枠部材の開放部を閉鎖する蓋板とを備え、前記蓋板は熱膨張による変形を抑制すべく反っていることを特徴とする表示装置。   In a display device comprising a backlight unit disposed on the rear side of a display unit having an image display surface on the front side, and a chassis that supports the backlight unit, the chassis includes a frame member that forms a rectangular parallelepiped, and the frame member And a cover plate that closes the opening of the display device, wherein the cover plate is warped to suppress deformation due to thermal expansion. 前記シャーシは、前記枠部材の複数の周方向位置に結合された補強桟を備え、前記蓋板を反らせる手段を前記補強桟に設けてある請求項１記載の表示装置。   The display device according to claim 1, wherein the chassis includes reinforcing bars coupled to a plurality of circumferential positions of the frame member, and means for warping the lid plate is provided on the reinforcing bars. 前記手段は、前記補強桟の長手方向両側に突設され先端が前記蓋板に結合された二つの第１突起と、第１突起間に該第１突起より短い長さに突設され先端が前記蓋板に結合された第２突起を有する請求項２記載の表示装置。   The means includes two first protrusions projecting on both sides in the longitudinal direction of the reinforcing bar, and a tip projecting between the first protrusions to a length shorter than the first protrusion. The display device according to claim 2, further comprising a second protrusion coupled to the lid plate.
JP2005298019A 2005-10-12 2005-10-12 Display device Pending JP2007108346A (en)

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Publication number Priority date Publication date Assignee Title
WO2009037885A1 (en) * 2007-09-20 2009-03-26 Sharp Kabushiki Kaisha Display unit and television receiver
JP2010068338A (en) * 2008-09-11 2010-03-25 Sharp Corp Display device
CN101241266B (en) * 2008-03-19 2010-10-13 友达光电股份有限公司 Backlight module and its lamp tube supporting structure
WO2013181849A1 (en) * 2012-06-05 2013-12-12 深圳市华星光电技术有限公司 Back frame and liquid crystal display device

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JP2001019862A (en) * 1999-07-07 2001-01-23 Matsushita Electric Ind Co Ltd Thermally expansible paste, cushioning layer using the paste and electronic unit using the cushioning layer
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JPH027332A (en) * 1988-06-27 1990-01-11 Toshiba Corp Color picture tube
JPH04280044A (en) * 1991-03-06 1992-10-06 Mitsubishi Electric Corp Color selecting electrode device for color cathode-ray tube and manufacture thereof
JP2001019862A (en) * 1999-07-07 2001-01-23 Matsushita Electric Ind Co Ltd Thermally expansible paste, cushioning layer using the paste and electronic unit using the cushioning layer
JP2004112378A (en) * 2002-09-19 2004-04-08 Nec Corp Filter, composite filter, filter mounter carrying them, integrated circuit chip, electronic device, and frequency characteristic changing method for them

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Publication number Priority date Publication date Assignee Title
WO2009037885A1 (en) * 2007-09-20 2009-03-26 Sharp Kabushiki Kaisha Display unit and television receiver
US8144288B2 (en) 2007-09-20 2012-03-27 Sharp Kabushiki Kaisha Display unit and television receiver
CN101241266B (en) * 2008-03-19 2010-10-13 友达光电股份有限公司 Backlight module and its lamp tube supporting structure
JP2010068338A (en) * 2008-09-11 2010-03-25 Sharp Corp Display device
WO2013181849A1 (en) * 2012-06-05 2013-12-12 深圳市华星光电技术有限公司 Back frame and liquid crystal display device

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