JP4549358B2 - Backlight device and display device - Google Patents

Backlight device and display device Download PDF

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JP4549358B2
JP4549358B2 JP2007039850A JP2007039850A JP4549358B2 JP 4549358 B2 JP4549358 B2 JP 4549358B2 JP 2007039850 A JP2007039850 A JP 2007039850A JP 2007039850 A JP2007039850 A JP 2007039850A JP 4549358 B2 JP4549358 B2 JP 4549358B2
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backlight
plate
diffusion plate
display
protrusion
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JP2008204818A (en
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昭浩 金谷
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シャープ株式会社
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本発明は、バックライトが点灯するか又は消灯したときに発生する軋み音を低減するバックライト装置及び表示装置に関する。   The present invention relates to a backlight device and a display device that reduce squeaking noise that occurs when a backlight is turned on or off.
従来の液晶表示装置に使用されているバックライト装置にあっては、バックライトを収容してある筐体と、該筐体の内部に設けてある保持枠と、該保持枠に保持してあり、バックライトの光を反射する反射板と、該反射板に対向させて設けてあり、バックライトの光を拡散する拡散板とを備える。前記反射板は前記拡散板に向けて立ち上がった側面部と、該側面部に連なる鍔部とを備えており、該鍔部と前記拡散板とが互いに密着している(特許文献1参照)。   In a backlight device used in a conventional liquid crystal display device, a casing that houses the backlight, a holding frame provided inside the casing, and a holding frame that is held by the holding frame And a reflecting plate that reflects the light of the backlight, and a diffusion plate that is provided to face the reflecting plate and diffuses the light of the backlight. The reflection plate includes a side portion that rises toward the diffusion plate and a flange portion that continues to the side surface portion, and the flange portion and the diffusion plate are in close contact with each other (see Patent Document 1).
特許文献1に記載の液晶表示装置にあっては、前記拡散板及び反射板は互いに密着しており、液晶表示装置の組立を行っている途中に両者が離れて、組立作業が中断し、組立効率が低下することを防いでいた。
特開2004−55182号公報
In the liquid crystal display device described in Patent Document 1, the diffusion plate and the reflection plate are in close contact with each other, and the two are separated during the assembly of the liquid crystal display device, and the assembly operation is interrupted. The efficiency was prevented from decreasing.
JP 2004-55182 A
特許文献1に記載の液晶表示装置では、筐体に収容されるバックライトの光源として、冷陰極管が使用されている。冷陰極管が点灯したときには、該冷陰極管の近傍に位置する反射板及び拡散板は、冷陰極管が発する熱を吸収し、冷陰極管が消灯したときには熱を放出するので、前記冷陰極管が点灯するか又は消灯した場合には、反射板及び拡散板は熱変化により伸縮する。   In the liquid crystal display device described in Patent Document 1, a cold cathode tube is used as a light source of a backlight housed in a housing. When the cold cathode tube is turned on, the reflector and the diffusion plate located in the vicinity of the cold cathode tube absorb the heat generated by the cold cathode tube, and release the heat when the cold cathode tube is turned off. When the tube is turned on or off, the reflecting plate and the diffusing plate expand and contract due to thermal changes.
反射板及び拡散板の材質が異なる場合には、両者の熱膨張率も異なり、両者の伸縮に差が生じる。伸縮に差が生じたときには両者の間で摩擦が生じて、軋み音が発生し、両者は互いに密着していることから、軋み音は無視できない大きさになるという問題点があった。   When the materials of the reflecting plate and the diffusing plate are different, the coefficients of thermal expansion of the two are also different, resulting in a difference in expansion and contraction between the two. When there is a difference in expansion and contraction, friction occurs between the two and a squeaking noise is generated. Since both are in close contact with each other, there is a problem that the squeaking noise becomes a level that cannot be ignored.
本発明は斯かる事情に鑑みてなされたものであり、反射板を支持する支持台に突起部を設け、該突起部を挿入する貫通部を前記反射板に設けることにより、該突起部が貫通部を通って、反射板に対向する拡散板に接触し、反射板と拡散板との密着を抑制し軋み音を低減することができるバックライト装置を提供することを目的とする。   The present invention has been made in view of such circumstances, and a protrusion is provided on a support base that supports the reflector, and a protrusion through which the protrusion is inserted is provided in the reflector so that the protrusion penetrates. An object of the present invention is to provide a backlight device that can pass through the portion and contact the diffusion plate facing the reflection plate to suppress adhesion between the reflection plate and the diffusion plate and reduce squeaking noise.
また本発明は、前記貫通部としての孔を開設することにより、前記突起部を前記孔に挿通して、突起部を前記拡散板に接触させ、反射板と拡散板との密着を抑制して軋み音を低減することができるバックライト装置を提供することを目的とする。   In the present invention, by opening a hole as the through portion, the protrusion is inserted into the hole, the protrusion is brought into contact with the diffusion plate, and adhesion between the reflection plate and the diffusion plate is suppressed. An object of the present invention is to provide a backlight device capable of reducing squeaking noise.
また本発明は、前記貫通部としての切欠を設けることにより、前記突起部を前記切欠に挿通して、突起部を前記拡散板に接触させ、反射板と拡散板との密着を抑制して軋み音を低減することができるバックライト装置を提供することを目的とする。   Further, the present invention provides a notch as the penetrating portion, and inserts the protruding portion into the notched portion to bring the protruding portion into contact with the diffusing plate, thereby suppressing adhesion between the reflecting plate and the diffusing plate. An object of the present invention is to provide a backlight device capable of reducing sound.
また本発明は、前記バックライト装置のいずれかを表示部の背面側に設けることにより、軋み音を低減することができる表示装置を提供することを目的とする。   Another object of the present invention is to provide a display device that can reduce the squeaking noise by providing any one of the backlight devices on the back side of the display unit.
本発明に係るバックライト装置は、バックライトを収容してある筐体及び該筐体の内部に設けてある支持台を備えるバックライトシャーシと、前記支持台にて支持されており、光を反射する反射板と、該反射板に対向して設けてあり、光を拡散する拡散板とを備えるバックライト装置において、前記支持台の前記反射板を支持している部分に突起部が設けてあり、該突起部を挿入する貫通部が前記反射板に設けてあって、前記突起部を前記貫通部に挿入して前記拡散板に接触させてあることを特徴とする。   A backlight device according to the present invention includes a casing that houses a backlight and a backlight chassis that includes a support base provided in the casing, and is supported by the support base and reflects light. In a backlight device provided with a reflecting plate that is opposed to the reflecting plate and that diffuses light, a protrusion is provided on a portion of the support base that supports the reflecting plate. A through-hole for inserting the protruding portion is provided in the reflecting plate, and the protruding portion is inserted into the through-hole to be in contact with the diffusion plate.
本発明にあっては、反射板を支持する支持台に突起部を設け、該突起部を挿入する貫通部を前記反射板に設けることにより、該突起部が貫通部を通って、反射板に対向する拡散板に接触し、反射板と拡散板との密着を抑制する。   In the present invention, a protrusion is provided on the support base that supports the reflector, and a penetrating portion into which the protrusion is inserted is provided in the reflector so that the protrusion passes through the penetrating portion to the reflector. It contacts the opposing diffusion plate and suppresses the close contact between the reflection plate and the diffusion plate.
また本発明に係るバックライト装置は、前記貫通部は孔であることを特徴とする。   In the backlight device according to the present invention, the through portion is a hole.
本発明にあっては、前記貫通部として孔を開設することにより、前記突起部を該孔に挿通して、突起部を前記拡散板に接触させ、反射板と拡散板との密着を抑制する。   In the present invention, by opening a hole as the penetrating portion, the protruding portion is inserted into the hole, the protruding portion is brought into contact with the diffusion plate, and adhesion between the reflection plate and the diffusion plate is suppressed. .
また本発明に係るバックライト装置は、前記貫通部は切欠であることを特徴とする。   The backlight device according to the present invention is characterized in that the penetrating portion is a notch.
本発明にあっては、前記貫通部として切欠を設けることにより、前記突起部を該切欠に挿通して、突起部を前記拡散板に接触させ、反射板と拡散板との密着を抑制する。   In the present invention, by providing a notch as the penetrating portion, the protruding portion is inserted into the notched portion, the protruding portion is brought into contact with the diffusion plate, and adhesion between the reflecting plate and the diffusion plate is suppressed.
また本発明に係る表示装置は、表示部と、該表示部の背面側に設けてある前述のバックライト装置とを備えることを特徴とする。   In addition, a display device according to the present invention includes a display unit and the above-described backlight device provided on the back side of the display unit.
本発明にあっては、前記バックライト装置のいずれかを表示部の背面側に設けることにより、バックライト装置の反射板と拡散板との密着は抑制してあり、バックライトが点灯するか又は消灯したときに発生する軋み音が低減される。   In the present invention, by providing any one of the backlight devices on the back side of the display unit, adhesion between the reflector and the diffusion plate of the backlight device is suppressed, and the backlight is turned on or The squeaking noise that occurs when the light is turned off is reduced.
本発明に係るバックライト装置においては、反射板を支持する支持台に突起部を設け、該突起部を挿入する貫通部を前記反射板に設けることにより、該突起部が貫通部を通って、反射板に対向する拡散板に接触し、反射板と拡散板との密着を抑制し、反射板と拡散板との摩擦により生じる軋み音を低減することができる。   In the backlight device according to the present invention, the protrusion is provided on the support base that supports the reflector, and the protrusion is inserted into the reflector so that the protrusion passes through the penetration. The diffusion plate facing the reflection plate is brought into contact, the adhesion between the reflection plate and the diffusion plate is suppressed, and the squeaking noise caused by the friction between the reflection plate and the diffusion plate can be reduced.
また本発明に係るバックライト装置においては、前記貫通部として孔を開設することにより、前記突起部を該孔に挿通して、突起部を前記拡散板に接触させ、反射板と拡散板との密着を抑制し、反射板と拡散板との摩擦により生じる軋み音を低減することができる。   Further, in the backlight device according to the present invention, by opening a hole as the penetrating portion, the protruding portion is inserted into the hole, the protruding portion is brought into contact with the diffusion plate, and the reflection plate and the diffusion plate are It is possible to suppress adhesion and reduce the squeaking noise caused by the friction between the reflecting plate and the diffusing plate.
また本発明に係るバックライト装置においては、前記貫通部として切欠を設けることにより、前記突起部を前記切欠に挿通して、突起部を前記拡散板に接触させ、反射板と拡散板との密着を抑制し、反射板と拡散板との摩擦により生じる軋み音を低減することができる。   Further, in the backlight device according to the present invention, by providing a notch as the penetrating portion, the projecting portion is inserted into the notch, the projecting portion is brought into contact with the diffusion plate, and the reflection plate and the diffusion plate are in close contact with each other. It is possible to suppress the squeaking noise caused by the friction between the reflecting plate and the diffusing plate.
また本発明に係る表示装置においては、前記バックライト装置のいずれかを表示部の背面側に設けることにより、バックライト装置の反射板と拡散板との密着は抑制してあり、バックライトが点灯するか又は消灯したときに発生する軋み音を低減し、軋み音による不快感を緩和することができる。   Further, in the display device according to the present invention, by providing one of the backlight devices on the back side of the display unit, the close contact between the reflection plate and the diffusion plate of the backlight device is suppressed, and the backlight is turned on. It is possible to reduce the squeaking sound that occurs when it is turned off or when it is turned off, and to relieve the discomfort caused by the squeaking sound.
(実施の形態1)
以下本発明に係るバックライト装置及び表示装置を実施の形態1を示す図面に基づいて詳述する。図1は実施の形態1に係るバックライト装置及び表示装置の断面図、図2は支持台の正面図、図3は反射板の正面図である。
(Embodiment 1)
Hereinafter, a backlight device and a display device according to the present invention will be described in detail with reference to the drawings illustrating Embodiment 1. 1 is a cross-sectional view of a backlight device and a display device according to Embodiment 1, FIG. 2 is a front view of a support base, and FIG. 3 is a front view of a reflector.
図において1は、バックライト装置及び表示装置のバックライトシャーシであり、該バックライトシャーシ1は、バックライトの光源である冷陰極管31、31、・・・を収容してある矩形の筐体10と、該筐体10の内部にて、筐体10の側面部に沿って設けてあり、後述する反射板2、拡散板3、光学シート4、5及び液晶パネル6を支持する枠状の支持台11とを有する。   In FIG. 1, reference numeral 1 denotes a backlight chassis of a backlight device and a display device, and the backlight chassis 1 is a rectangular casing that houses cold cathode tubes 31, 31,. 10 and a frame-like shape that is provided along the side surface of the housing 10 inside the housing 10 and supports a reflector 2, a diffusion plate 3, optical sheets 4, 5 and a liquid crystal panel 6 described later. And a support base 11.
該支持台11は、前記筐体10の側面部に沿って、正面寄りに設けてある矩形の枠部11aと、該枠部11aの長手側面に沿って、該長手側面に対し直角に連なっており、内側に適長延出した板状の支持部11bと、該支持部11bに対し直角に連なっており、該支持部11bと筐体10の背面部とを隔てている板状のスペーサ部11cとを備えている。前記支持部11bには、正面側に突起した円錐形の突起部11d、11d、・・・が長手方向に等配されている。   The support base 11 is connected to the rectangular frame portion 11a provided near the front side along the side surface portion of the housing 10, and is connected to the longitudinal side surface at a right angle along the longitudinal side surface of the frame portion 11a. A plate-like support portion 11b extending to the inside for an appropriate length, and a plate-like spacer portion 11c that is connected to the support portion 11b at a right angle and separates the support portion 11b and the back surface portion of the housing 10. And. Conical protrusions 11d, 11d,... Protruding in the front side are equally arranged on the support part 11b in the longitudinal direction.
前記支持台11には前記冷陰極管31、31、・・・の光を反射するための矩形の反射板2が支持されている。該反射板2は、前記支持台11の中央にて、前記筐体10の背面部に近接して対向する矩形の底面部2aと、該底面部2aの長手縁部に連なっており、前記スペーサ部11cと略同じ高さに立ち上がった側面部2bと、該側面部2bに連なって外向きに適長延出しており、前記支持部11bに支持されている鍔部2cとを備える。該鍔部2cには前記突起部11d、11d、・・・を挿入する円形の貫通孔2d、2d、・・・が開設してあり、前記突起部11dの先端は該貫通孔2dから僅かに突出している。   A rectangular reflector 2 for reflecting light from the cold cathode tubes 31, 31,... Is supported on the support base 11. The reflecting plate 2 is connected to the rectangular bottom surface portion 2a facing the back surface portion of the housing 10 in the center of the support base 11 and the longitudinal edge of the bottom surface portion 2a, and the spacer The side part 2b which stood up to the substantially same height as the part 11c, and the collar part 2c which extended outside for a suitable length connected to this side part 2b, and are supported by the said support part 11b are provided. In the flange 2c, circular through holes 2d, 2d,... For inserting the protrusions 11d, 11d,... Are opened, and the tip of the protrusion 11d is slightly extended from the through hole 2d. It protrudes.
前記冷陰極管31、31、・・・の光を拡散する拡散板3が、前記反射板2の正面に対向して設けてあり、該拡散板3は前記突起部11dに接触している。前記冷陰極管31は、前記筐体10に設けてある支持クリップ30により、前記拡散板3及び反射板2の間にて支持されており、前記バックライトシャーシ1、反射板2、拡散板3、支持クリップ30及び冷陰極管31はバックライト装置を構成している。   A diffusing plate 3 for diffusing light from the cold cathode tubes 31, 31,... Is provided opposite to the front surface of the reflecting plate 2, and the diffusing plate 3 is in contact with the protruding portion 11d. The cold cathode tube 31 is supported between the diffusion plate 3 and the reflection plate 2 by a support clip 30 provided in the housing 10, and the backlight chassis 1, the reflection plate 2, and the diffusion plate 3. The support clip 30 and the cold cathode tube 31 constitute a backlight device.
前記拡散板3の正面には二枚の光学シート4、5及び液晶パネル6が重ねてある。該液晶パネル6の正面周縁に接触させて、ベゼル7が前記筐体10の正面に取付けられており、前記バックライト装置、光学シート4、5、液晶パネル6及びベゼル7は前記表示装置を構成している。   Two optical sheets 4 and 5 and a liquid crystal panel 6 are stacked on the front surface of the diffusion plate 3. The bezel 7 is attached to the front surface of the casing 10 so as to contact the front peripheral edge of the liquid crystal panel 6, and the backlight device, the optical sheets 4, 5, the liquid crystal panel 6 and the bezel 7 constitute the display device. is doing.
実施の形態1に係るバックライト装置及び表示装置にあっては、冷陰極管31は点灯した場合に発熱するので、冷陰極管31の点灯又は消灯により、拡散板3及び反射板2に熱変化が生じ、拡散板3及び反射板2は伸縮する。両者の熱膨張率が異なる場合には両者の伸縮に差が生じるが、支持台11に突起部11dを設け、貫通孔2dを鍔部2cに開設することにより、拡散板3は前記突起部11dに接触し、拡散板3の前記鍔部2cとの密着は抑制され、前記拡散板3と前記鍔部2cとの摩擦による軋み音を低減することができる。   In the backlight device and the display device according to the first embodiment, the cold cathode tube 31 generates heat when it is turned on, so that the diffusion plate 3 and the reflector 2 are thermally changed by turning on or off the cold cathode tube 31. Occurs, and the diffusion plate 3 and the reflection plate 2 expand and contract. When the coefficients of thermal expansion of the two are different, there is a difference between the expansion and contraction of the two. However, by providing the support 11 with the protrusion 11d and opening the through hole 2d in the flange 2c, the diffusion plate 3 can be used as the protrusion 11d. The contact between the diffusion plate 3 and the flange portion 2c is suppressed, and the squeaking noise caused by friction between the diffusion plate 3 and the flange portion 2c can be reduced.
なお支持台11は筐体10と一体に成形されていても良い。また突起部11dの形状は円錐形に限らず、柱形等その他の突起した形状であっても良く、貫通孔2dの形状は円形に限らず、四角形等その他の突起部11dを挿入可能な形状であれば良い。   The support base 11 may be formed integrally with the housing 10. Further, the shape of the protruding portion 11d is not limited to a conical shape, and may be a protruding shape such as a column shape. The shape of the through hole 2d is not limited to a circular shape, and a shape such as a quadrangular shape that allows other protruding portions 11d to be inserted. If it is good.
また支持台11の支持部11bを枠部11aの側面全体に連ね、反射板2の側面部2bを底面部2aの全周に連ねて、該側面部2bに鍔部2cを連ねる構成としても良く、スペーサ部11cは板状に限らず、角材状であっても良い。また光源としてLEDランプを使用しても良い。また表示装置は透過型液晶表示装置、半透過型液晶表示装置のいずれでも良い。なお反射板2、拡散板3及び冷陰極管30はバックライトを構成している。   Further, the support portion 11b of the support base 11 may be connected to the entire side surface of the frame portion 11a, the side surface portion 2b of the reflector 2 may be connected to the entire circumference of the bottom surface portion 2a, and the flange portion 2c may be connected to the side surface portion 2b. The spacer portion 11c is not limited to a plate shape but may be a square shape. An LED lamp may be used as the light source. The display device may be either a transmissive liquid crystal display device or a transflective liquid crystal display device. The reflection plate 2, the diffusion plate 3, and the cold cathode tube 30 constitute a backlight.
(実施の形態2)
以下本発明に係る液晶表示装置を実施の形態2を示す図面に基づいて詳述する。図4は実施の形態2に係るバックライト装置及び表示装置の反射板の正面図である。
(Embodiment 2)
Hereinafter, a liquid crystal display device according to the present invention will be described in detail with reference to the drawings showing a second embodiment. FIG. 4 is a front view of the reflector of the backlight device and the display device according to the second embodiment.
液晶表示装置の支持台11に冷陰極管31の光を反射するための矩形の反射板2が支持されている。反射板2の鍔部2cには突起部11d、11d、・・・を挿入する略円形の切欠20d、20d、・・・が設けてあり、前記突起部11dの先端は前記切欠20dの中央から僅かに突出している。   A rectangular reflector 2 for reflecting light from the cold cathode tubes 31 is supported on a support 11 of the liquid crystal display device. The flange 2c of the reflecting plate 2 is provided with substantially circular cutouts 20d, 20d,... For inserting the projections 11d, 11d,..., And the tip of the projection 11d extends from the center of the cutout 20d. It protrudes slightly.
実施の形態2に係るバックライト装置及び表示装置にあっては、切欠20dを鍔部2cに設けることにより、前記突起部11dを前記切欠20dに挿通して、突起部11dを拡散板3に接触させ、反射板2と拡散板3との密着を抑制し、反射板2と拡散板3との摩擦により生じる軋み音を低減することができる。   In the backlight device and the display device according to Embodiment 2, by providing the notch 20d in the flange 2c, the protrusion 11d is inserted into the notch 20d, and the protrusion 11d is brought into contact with the diffusion plate 3. Thus, it is possible to suppress the close contact between the reflecting plate 2 and the diffusing plate 3, and to reduce the squeaking noise caused by the friction between the reflecting plate 2 and the diffusing plate 3.
実施の形態2に係る液晶表示装置の構成の内、実施の形態1と同様の構成については同じ符号を付し、その詳細な説明を省略する。   Among the configurations of the liquid crystal display device according to the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
実施の形態1に係るバックライト装置及び表示装置の断面図である。2 is a cross-sectional view of the backlight device and the display device according to Embodiment 1. FIG. 実施の形態1に係るバックライト装置及び表示装置の支持台の正面図である。3 is a front view of a backlight device and a support base of the display device according to Embodiment 1. FIG. 実施の形態1に係るバックライト装置及び表示装置の反射板の正面図である。FIG. 3 is a front view of the backlight device and the reflecting plate of the display device according to the first embodiment. 実施の形態2に係るバックライト装置及び表示装置の反射板の正面図である。It is a front view of the reflecting plate of the backlight apparatus and display apparatus which concern on Embodiment 2. FIG.
符号の説明Explanation of symbols
1 バックライトシャーシ
2 反射板
2a 底面部
2b 側面部
2c 鍔部
2d 貫通孔
3 拡散板
4、5 光学シート
6 液晶パネル
7 ベゼル
10 筐体
11 支持台
11a 枠部
11b 支持部
11c スペーサ部
11d 突起部
20d 切欠
30 支持クリップ
31 冷陰極管
DESCRIPTION OF SYMBOLS 1 Backlight chassis 2 Reflecting plate 2a Bottom surface part 2b Side surface part 2c Edge part 2d Through-hole 3 Diffusion plate 4, 5 Optical sheet 6 Liquid crystal panel 7 Bezel 10 Housing | casing 11 Support stand 11a Frame part 11b Support part 11c Spacer part 11d Protrusion part 20d Notch 30 Support clip 31 Cold cathode tube

Claims (4)

  1. バックライトを収容してある筐体及び該筐体の内部に設けてある支持台を備えるバックライトシャーシと、前記支持台にて支持されており、光を反射する反射板と、該反射板に対向して設けてあり、光を拡散する拡散板とを備えるバックライト装置において、
    前記支持台の前記反射板を支持している部分に突起部が設けてあり、該突起部を挿入する貫通部が前記反射板に設けてあって、前記突起部を前記貫通部に挿入して前記拡散板に接触させてあることを特徴とするバックライト装置。
    A backlight chassis including a casing that houses a backlight and a support base provided in the casing, a reflector that is supported by the support base and reflects light, and the reflector In a backlight device that is provided facing and includes a diffusion plate that diffuses light,
    A protrusion is provided on a portion of the support base that supports the reflecting plate, and a through portion for inserting the protruding portion is provided on the reflecting plate, and the protruding portion is inserted into the through portion. A backlight device in contact with the diffusion plate.
  2. 前記貫通部は孔であることを特徴とする請求項1に記載のバックライト装置。   The backlight device according to claim 1, wherein the penetrating portion is a hole.
  3. 前記貫通部は切欠であることを特徴とする請求項1に記載のバックライト装置。   The backlight device according to claim 1, wherein the penetrating portion is a notch.
  4. 表示部と、該表示部の背面側に設けてある請求項1乃至3のいずれか一つに記載のバックライト装置とを備える表示装置。   A display device comprising: a display unit; and the backlight device according to claim 1 provided on a back side of the display unit.
JP2007039850A 2007-02-20 2007-02-20 Backlight device and display device Expired - Fee Related JP4549358B2 (en)

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KR101570238B1 (en) * 2008-12-04 2015-11-19 엘지디스플레이 주식회사 Backlight unit and liquid crystal display device having the same
EP2479477A4 (en) * 2009-09-16 2012-11-14 Sharp Kk Lighting device, display apparatus, and television receiver
JP5227944B2 (en) * 2009-12-14 2013-07-03 日立アプライアンス株式会社 Lighting device
KR102136203B1 (en) * 2014-02-03 2020-08-14 삼성디스플레이 주식회사 Backlight unit and liquid crystal display comprising the same
CN109407396A (en) * 2018-10-23 2019-03-01 惠州市华星光电技术有限公司 A kind of liquid crystal display device

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JPH06186432A (en) * 1992-12-17 1994-07-08 Nissha Printing Co Ltd Surface light emitting device
JP2004055182A (en) * 2002-07-17 2004-02-19 Sharp Corp Backlight device and liquid crystal display device
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JP2005056858A (en) * 2004-10-14 2005-03-03 Sharp Corp Illumination device and liquid crystal display device
JP2006331649A (en) * 2005-05-23 2006-12-07 Sharp Corp Flexure prevention structure of light correction sheet in planar lighting system

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Publication number Priority date Publication date Assignee Title
JPH06186432A (en) * 1992-12-17 1994-07-08 Nissha Printing Co Ltd Surface light emitting device
JP2004055182A (en) * 2002-07-17 2004-02-19 Sharp Corp Backlight device and liquid crystal display device
JP2004235103A (en) * 2003-01-31 2004-08-19 Sumitomo Rubber Ind Ltd Directly-under type backlight
JP2005056858A (en) * 2004-10-14 2005-03-03 Sharp Corp Illumination device and liquid crystal display device
JP2006331649A (en) * 2005-05-23 2006-12-07 Sharp Corp Flexure prevention structure of light correction sheet in planar lighting system

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