JPH08129174A - Illuminator for liquid crystal display device - Google Patents
Illuminator for liquid crystal display deviceInfo
- Publication number
- JPH08129174A JPH08129174A JP6266528A JP26652894A JPH08129174A JP H08129174 A JPH08129174 A JP H08129174A JP 6266528 A JP6266528 A JP 6266528A JP 26652894 A JP26652894 A JP 26652894A JP H08129174 A JPH08129174 A JP H08129174A
- Authority
- JP
- Japan
- Prior art keywords
- light
- plate
- liquid crystal
- light source
- crystal display
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はバックライト方式の液晶
表示装置に搭載される液晶表示装置用照明装置に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illumination device for a liquid crystal display device mounted on a backlight type liquid crystal display device.
【０００２】[0002]
【従来の技術】時分割方式やアクティブマトリクス方式
の液晶表示装置は、その視認性の向上をはかるためにバ
ックライト方式が採用されている。特にカラー液晶表示
装置においては、モノクロの液晶表示装置と比べてパネ
ル透過率が極めて低いため、高輝度の薄型照明装置が要
求される。2. Description of the Related Art A liquid crystal display device of a time division system or an active matrix system employs a backlight system in order to improve its visibility. In particular, a color liquid crystal display device has an extremely low panel transmittance as compared with a monochrome liquid crystal display device, and thus a thin illuminating device with high brightness is required.
【０００３】図６は、この薄型照明装置１を搭載した液
晶表示装置Ｄの一例であり、液晶パネル２に矩形状導光
板３を配設し、この導光板３の端面に蛍光ランプ４を置
く２灯タイプのエッジライト方式である。そして、金属
製ケース５のなかに照明装置１と液晶パネル２とを組み
入れたものであって、導光板３の一主面に光拡散板６を
設けるとともに、他主面と蛍光ランプ４を覆うように、
それぞれに光反射板７、光源用反射板８とを設けてい
る。導光板３の他主面の光反射板７との間には、略全面
に酸化チタンを添加した白色及至乳白色系を呈するガラ
スビーズを含有する印刷パターン（図示せず）を多数高
密度に分布するように形成し、これによって輝度を面状
に高める調整手段として光散乱性能を高めている（特開
昭５１−８８０４２号、特開昭６４−５７２４０号、特
開平２−１７号、特開平４−１０９１３号、特開平６−
６７０２５号等参照）。FIG. 6 shows an example of a liquid crystal display device D in which the thin lighting device 1 is mounted. A rectangular light guide plate 3 is arranged on a liquid crystal panel 2, and a fluorescent lamp 4 is placed on the end face of the light guide plate 3. It is a two-lamp type edge light system. In addition, the lighting device 1 and the liquid crystal panel 2 are incorporated in a metal case 5, a light diffusing plate 6 is provided on one main surface of the light guide plate 3, and the other main surface and the fluorescent lamp 4 are covered. like,
A light reflection plate 7 and a light source reflection plate 8 are provided on each. A large number of print patterns (not shown) containing white and milky white glass beads in which titanium oxide is added to almost the entire surface are densely distributed between the other main surface of the light guide plate 3 and the light reflecting plate 7. The light-scattering performance is enhanced as an adjusting means for increasing the brightness in a planar manner (Japanese Patent Application Laid-Open Nos. 51-88042, 64-57240, 2-17, and 2-17). 4-10913, JP-A-6-
67025).
【０００４】[0004]
【発明が解決しようとする問題点】しかしながら、上記
構成の液晶表示装置Ｄによれば、蛍光ランプ４が発する
熱により、液晶パネル２が局所的に加熱され、蛍光ラン
プ４に近い液晶パネル２の表面温度が上昇する傾向にあ
り、これによって温度ムラが生じ、表示パネルの動作に
大きく影響を及ぼすしきい値電圧が変動し、その結果、
表示ムラが発生するという問題点があった。。However, according to the liquid crystal display device D having the above structure, the liquid crystal panel 2 is locally heated by the heat generated by the fluorescent lamp 4, and the liquid crystal panel 2 close to the fluorescent lamp 4 is heated. The surface temperature tends to rise, which causes temperature unevenness, which changes the threshold voltage that greatly affects the operation of the display panel.
There is a problem that display unevenness occurs. .
【０００５】この問題点を解決するためには、蛍光ラン
プ４と液晶パネル２の表示部までの間隔を大きくすれば
よいが、これに伴って、大型化し、近年の薄型化および
小型化の市場要求を満たすことができないという問題点
があった。In order to solve this problem, the distance between the fluorescent lamp 4 and the display portion of the liquid crystal panel 2 may be increased. However, along with this, the size of the fluorescent lamp 4 is increased and the recent market for thinning and miniaturization. There was a problem that the demand could not be satisfied.
【０００６】したがって、本発明は上記事情に鑑みて完
成されたものであり、その目的は液晶パネルの全体にわ
たって均一に昇温するようにして、温度ムラを解消し、
これによって表示ムラをなくした液晶表示装置用照明装
置を提供することにある。Therefore, the present invention has been completed in view of the above circumstances, and an object of the present invention is to uniformly raise the temperature of the entire liquid crystal panel to eliminate temperature unevenness.
Accordingly, it is an object of the present invention to provide a lighting device for a liquid crystal display device that eliminates display unevenness.
【０００７】本発明の他の目的は、薄型軽量化ととも
に、小型化を達成した液晶表示装置用照明装置を提供す
ることにある。Another object of the present invention is to provide a lighting device for a liquid crystal display device, which is thin and lightweight and is compact.
【０００８】[0008]
【問題点を解決するための手段】請求項１の液晶表示装
置用照明装置は、端面に長尺状光源を配設した導光板の
一主面に光拡散板を形成し、他主面上にドット状光散乱
層と光反射板とを順次を設け、この光反射板上に凸部を
有する金属板を配設するとともに、この凸部の頂部と光
反射板との当接する接触面積比率が長尺状光源から遠ざ
かるにつれて、漸次大きくなることを特徴とする。According to another aspect of the present invention, there is provided a lighting device for a liquid crystal display device, wherein a light diffusing plate is formed on one main surface of a light guide plate having an elongated light source disposed on an end surface, and the light diffusion plate is formed on the other main surface. A dot-shaped light scattering layer and a light reflection plate are sequentially provided on the light reflection plate, and a metal plate having a convex portion is arranged on the light reflection plate, and the contact area ratio between the top of the convex portion and the light reflection plate is in contact. Is gradually increased as the distance from the elongated light source increases.
【０００９】[0009]
【作用】上記構成の液晶表示装置用照明装置によれば、
光反射板上に凸部を有する金属板を配設するとともに、
この凸部の頂部が光反射板と当接するした構成であっ
て、このような構成であれば、光源の発熱が金属板へ伝
導し、その伝導熱が金属板の凸部を通して導光板へ伝え
られる。そして、この凸部の接触面積比率を長尺状光源
から遠ざかるにつれて、大きくしているので、長尺状光
源から遠ざかる金属板の部分でもって、より多くの熱が
導光板へ伝導し、これにより、導光板の全体にわたって
均一に昇温され、その結果、液晶パネルに対する温度ム
ラを解消し、薄型軽量化と小型化を達成しながら、表示
ムラを解消できる。According to the illumination device for liquid crystal display device having the above structure,
While disposing a metal plate having a convex portion on the light reflecting plate,
In this configuration, the top of the convex portion is in contact with the light reflection plate, and in such a configuration, the heat generated by the light source is conducted to the metal plate, and the conduction heat is transmitted to the light guide plate through the convex portion of the metal plate. To be And, since the contact area ratio of this convex portion is made larger as it goes away from the elongated light source, more heat is conducted to the light guide plate even in the portion of the metal plate away from the elongated light source, and As a result, the temperature is uniformly raised over the entire light guide plate, and as a result, the temperature unevenness on the liquid crystal panel can be eliminated, and the display unevenness can be eliminated while achieving a reduction in thickness and weight.
【００１０】[0010]
（例１）図１は本発明の液晶表示装置Ｐ１の要部断面概
略図であり、図２はこの液晶表示装置Ｐ１に使用するア
ルミニウム製の一対の金属ケース９の一方のケース９ａ
の斜視図である。なお、図６に示す液晶表示装置Ｄと同
一部材には同一符号を付す。(Example 1) FIG. 1 is a schematic cross-sectional view of a main part of a liquid crystal display device P1 of the present invention, and FIG. 2 is one case 9a of a pair of aluminum metal cases 9 used for the liquid crystal display device P1.
It is a perspective view of. The same members as those of the liquid crystal display device D shown in FIG. 6 are designated by the same reference numerals.
【００１１】この液晶表示装置Ｐ１によれば、一対の金
属ケース９に液晶パネル２と照明装置１とを組み入れた
ものであって、この照明装置１は、厚さ３ｍｍのポリメ
チルメタアクリレート製導光板３の端面に沿って２個の
長尺円筒状光源４（管径２．５ｍｍの熱陰極型蛍光ラン
プ）を配設し、その光源４の外周に銀を蒸着したアルミ
ニウム製光源用反射板８が設けている。この光源用反射
板８は長尺円筒状光源４の長手方向に沿って横断面形状
が湾曲した反射面を有している。According to the liquid crystal display device P1, the liquid crystal panel 2 and the illuminating device 1 are assembled in a pair of metal cases 9, and the illuminating device 1 is made of polymethylmethacrylate having a thickness of 3 mm. Two long cylindrical light sources 4 (hot cathode fluorescent lamps with a tube diameter of 2.5 mm) are arranged along the end surface of the light plate 3, and an aluminum light source reflection plate in which silver is vapor-deposited on the outer circumference of the light source 4. 8 are provided. The light source reflection plate 8 has a reflection surface whose cross-sectional shape is curved along the longitudinal direction of the elongated cylindrical light source 4.
【００１２】また、この導光板３の一主面にドット状光
散乱層（図示せず）を形成している。このドット状光散
乱層は、輝度を面状に高める調整手段として、酸化チタ
ンを添加した白色及至乳白色系を呈するガラスビーズを
含有する印刷パターンを多数高密度に分布するように形
成したものである。A dot-shaped light scattering layer (not shown) is formed on one main surface of the light guide plate 3. This dot-shaped light-scattering layer is formed so that a large number of print patterns containing glass beads exhibiting white and milky white to which titanium oxide is added are distributed at high density as a means for adjusting the brightness in a planar manner. .
【００１３】そして、このドット状光散乱層の上に更に
乳白色のポリエチレンテレフタレート製光反射板７を設
けている。しかも、導光板３の他主面にポリカーボネイ
ト製の光拡散板６を設けている。A milky white polyethylene terephthalate light reflection plate 7 is further provided on the dot-shaped light scattering layer. Moreover, the light diffusion plate 6 made of polycarbonate is provided on the other main surface of the light guide plate 3.
【００１４】かくして上記構成の液晶表示装置Ｐ１によ
れば、光源４の発熱の一部が、液晶パネル２のうちその
近傍を昇温させることになるが、このような構成のケー
ス９ａ構造であれば、液晶パネル２のうち光源４から遠
かざかっている部分を昇温させることができた。Thus, according to the liquid crystal display device P1 having the above-mentioned structure, a part of the heat generated by the light source 4 causes the temperature in the vicinity of the liquid crystal panel 2 to rise, but the case 9a structure having such a structure may be used. For example, it was possible to raise the temperature of the part of the liquid crystal panel 2 that was distant from the light source 4.
【００１５】すなわち、液晶パネル２の主要部分である
ガラス基板と、導光板３と、金属ケース９のそれぞれの
熱伝導率は、２３×１０-4ｃａｌ／ｃｍ・ｓ・℃、４〜
６×１０-4ｃａｌ／ｃｍ・ｓ・℃、５０００×１０-4ｃ
ａｌ／ｃｍ・ｓ・℃であって、この金属ケース９の熱伝
導率が格段に大きく、これによって、光源４の発熱は、
この金属ケース９へ相当に伝導されることになり、更に
昇温された金属ケース９のうち一方のケース９ａについ
ては、凸部１０を通して導光板３へ伝えられるが、この
凸部１０の接触面積を大きくすることで、その接触面積
比率を光源４から遠ざかるにつれて、大きくしているの
で、そのような金属板部分でもって、より多くの熱が導
光板３へ伝導し、これにより、導光板３の全体にわたっ
て均一に昇温され、その結果、液晶パネル２に対する温
度ムラを解消できた。That is, the thermal conductivity of each of the glass substrate, which is the main part of the liquid crystal panel 2, the light guide plate 3, and the metal case 9 is 23 × 10 −4 cal / cm · s · ° C., 4 to 4.
6 × 10 -4 cal / cm ・ s ・ ° C, 5000 × 10 -4 c
al / cm · s · ° C., and the heat conductivity of the metal case 9 is remarkably large.
The metal case 9 is considerably conducted to the metal case 9, and one of the heated metal cases 9a is transmitted to the light guide plate 3 through the convex portion 10. By increasing the contact area ratio as the distance from the light source 4 increases, more heat is conducted to the light guide plate 3 by such a metal plate portion. The temperature was uniformly raised over the entire area, and as a result, temperature unevenness on the liquid crystal panel 2 could be eliminated.
【００１６】（例２）図３は本発明の液晶表示装置Ｐ２
の要部断面概略図であり、図４はこの液晶表示装置Ｐ２
に使用するアルミニウム製の一対の金属ケース１１の一
方のケース１１ａの斜視図であって、このケース１１ａ
にも凸部１２を設けている。なお、図１に示す液晶表示
装置Ｐ１と同一部材には同一符号を付す。(Example 2) FIG. 3 shows a liquid crystal display device P2 of the present invention.
FIG. 4 is a schematic cross-sectional view of a main part of the liquid crystal display device P2.
2 is a perspective view of one case 11a of a pair of metal cases 11 made of aluminum used for
Also, the convex portion 12 is provided. The same members as those of the liquid crystal display device P1 shown in FIG. 1 are designated by the same reference numerals.
【００１７】この液晶表示装置Ｐ２によれば、一対の金
属ケース１１に液晶パネル２と照明装置１ａとを組み入
れたものであって、この照明装置１ａは、厚さ３ｍｍの
ポリメチルメタアクリレート製導光板３の端面に沿って
１個の長尺円筒状光源４（管径２．５ｍｍの熱陰極型蛍
光ランプ）を配設した１灯式である。その他の構成は、
液晶表示装置Ｐ１である。According to the liquid crystal display device P2, the liquid crystal panel 2 and the illuminating device 1a are incorporated in a pair of metal cases 11, and the illuminating device 1a is made of polymethylmethacrylate having a thickness of 3 mm. It is a one-lamp type in which one long cylindrical light source 4 (hot cathode fluorescent lamp with a tube diameter of 2.5 mm) is arranged along the end surface of the light plate 3. Other configurations are
The liquid crystal display device P1.
【００１８】上記構成の液晶表示装置Ｐ２についても、
光源４の発熱の一部が、液晶パネル２のうちその近傍を
昇温させることになるが、液晶パネル２のうち光源４か
ら遠かざかっているケース１１の部分を昇温させること
ができた。Also in the liquid crystal display device P2 having the above structure,
Although a part of the heat generated by the light source 4 will raise the temperature in the vicinity of the liquid crystal panel 2, it was possible to raise the temperature in the portion of the liquid crystal panel 2 that is away from the light source 4.
【００１９】すなわち、光源４の発熱は、この金属ケー
ス１１へ相当に伝導されることになり、更に昇温された
金属ケース１１のうち一方のケース１１ａについては、
凸部１２を通して導光板３へ伝えられるが、この凸部１
２の接触面積比率を光源４から遠ざかるにつれて、大き
くしているので、そのような金属板部分でもって、より
多くの熱が導光板３へ伝導し、これにより、導光板３の
全体にわたって均一に昇温され、その結果、液晶パネル
２に対する温度ムラを解消できた。That is, the heat generated by the light source 4 is considerably conducted to the metal case 11, and the case 11a, which is one of the metal cases 11 that has been further heated,
The light is transmitted to the light guide plate 3 through the convex portion 12, and the convex portion 1
Since the contact area ratio of 2 increases as the distance from the light source 4 increases, more heat is conducted to the light guide plate 3 by such a metal plate portion, so that the entire light guide plate 3 is made uniform. The temperature was raised, and as a result, the temperature unevenness on the liquid crystal panel 2 could be eliminated.
【００２０】（例３）図５は本発明の液晶表示装置Ｐ３
の要部断面概略図であり、樹脂製の一対のケース１３
（ケース１３ａとケース１３ｂとの組合せである）の一
方のケース１３ａの内部にアルミニウム板１４を配設す
るとともに、このアルミニウム板１４にも凸部１５を設
けている。なお、図１に示す液晶表示装置Ｐ１と同一部
材には同一符号を付す。Example 3 FIG. 5 shows a liquid crystal display device P3 of the present invention.
FIG. 3 is a schematic cross-sectional view of a main part of a pair of cases 13 made of resin.
An aluminum plate 14 is provided inside one case 13a (which is a combination of the case 13a and the case 13b), and a projection 15 is also provided on the aluminum plate 14. The same members as those of the liquid crystal display device P1 shown in FIG. 1 are designated by the same reference numerals.
【００２１】上記構成の液晶表示装置Ｐ３についても、
光源４の発熱の一部が、液晶パネル２のうちその近傍を
昇温させることになるが、液晶パネル２のうち光源４か
ら遠かざかっているケース１３の部分を昇温させること
ができた。Also in the liquid crystal display device P3 having the above structure,
Although a part of the heat generated by the light source 4 causes the temperature of the vicinity of the liquid crystal panel 2 to rise, it is possible to raise the temperature of the portion of the case 13 away from the light source 4 in the liquid crystal panel 2.
【００２２】すなわち、光源４の発熱は、このケース１
３へ相当に伝導されることになり、更に昇温されたケー
ス１３のうち一方のケース１３ａについては、凸部１５
を通して導光板３へ伝えられるが、この凸部１５の接触
面積比率を光源４から遠ざかるにつれて、大きくしてい
るので、そのようなアルミニウム板１４の部分でもっ
て、より多くの熱が導光板３へ伝導し、これにより、導
光板３の全体にわたって均一に昇温され、その結果、液
晶パネル２に対する温度ムラを解消できた。That is, the heat generated by the light source 4 is generated by the case 1
3 is considerably conducted, and the case 13a, which is one of the cases 13 whose temperature is further raised, has a convex portion 15a.
However, since the contact area ratio of the convex portion 15 increases as the distance from the light source 4 increases, more heat is transmitted to the light guide plate 3 by the aluminum plate 14 portion. As a result of conduction, the temperature is uniformly raised over the entire light guide plate 3, and as a result, temperature unevenness on the liquid crystal panel 2 can be eliminated.
【００２３】本発明者が繰り返し行った実験によれば、
各液晶表示装置Ｐ１、Ｐ２、Ｐ３について、その照明装
置を１時間点灯し、その後の液晶パネル２の面内の温度
ムラを測定したところ、いずれも２℃以下であり、表示
ムラのない良好な表示が得られた。然るに、従来の液晶
表示装置Ｄでは、同条件下で７℃の温度ムラであった。According to an experiment repeated by the present inventor,
For each of the liquid crystal display devices P1, P2, and P3, the illuminating device was turned on for 1 hour, and the temperature unevenness in the plane of the liquid crystal panel 2 after that was measured. The display was obtained. However, in the conventional liquid crystal display device D, the temperature unevenness was 7 ° C. under the same conditions.
【００２４】なお、本発明は上記実施例に限定されるも
のではなく、本発明の要旨を逸脱しない範囲内で種々の
変更、改良等は何ら差し支えない。The present invention is not limited to the above embodiments, and various modifications and improvements can be made without departing from the scope of the present invention.
【００２５】[0025]
【発明の効果】以上のように、本発明によれば、光反射
板上に凸部を有する金属板を配設するとともに、この凸
部の頂部が光反射板と当接しているので、光源の発熱が
金属板へ伝導し、その伝導熱が金属板の凸部を通して導
光板へ伝えられ、そして、この凸部の接触面積比率を長
尺状光源から遠ざかるにつれて、大きくしているので、
長尺状光源から遠ざかる金属板の部分でもって、より多
くの熱が導光板へ伝導し、これにより、導光板の全体に
わたって均一に昇温され、その結果、液晶パネルに対す
る温度ムラを解消し、薄型軽量化と小型化を達成しなが
ら、表示ムラを解消できた高性能な液晶表示装置用照明
装置が提供できた。As described above, according to the present invention, since the metal plate having the convex portion is arranged on the light reflecting plate, and the top of the convex portion is in contact with the light reflecting plate, the light source. The heat generated by is conducted to the metal plate, and the conducted heat is transmitted to the light guide plate through the convex portion of the metal plate, and the contact area ratio of the convex portion is increased as the distance from the elongated light source is increased.
In the part of the metal plate away from the elongated light source, more heat is conducted to the light guide plate, thereby uniformly heating the entire light guide plate, and as a result, eliminating temperature unevenness on the liquid crystal panel, It was possible to provide a high-performance lighting device for liquid crystal display devices that was able to eliminate display unevenness while achieving a reduction in thickness, weight, and size.
【図１】実施例の液晶表示装置用照明装置の断面概略図
である。FIG. 1 is a schematic cross-sectional view of a lighting device for a liquid crystal display device of an example.
【図２】凸部を有する金属板の斜視図である。FIG. 2 is a perspective view of a metal plate having a convex portion.
【図３】他の実施例の液晶表示装置用照明装置の断面概
略図である。FIG. 3 is a schematic cross-sectional view of a lighting device for a liquid crystal display device of another embodiment.
【図４】他の実施例に用いる凸部を有する金属板の斜視
図である。FIG. 4 is a perspective view of a metal plate having a convex portion used in another embodiment.
【図５】他の実施例の液晶表示装置用照明装置の断面概
略図である。FIG. 5 is a schematic cross-sectional view of a lighting device for a liquid crystal display device of another embodiment.
【図６】従来の液晶表示装置用照明装置の断面概略図で
ある。FIG. 6 is a schematic sectional view of a conventional lighting device for a liquid crystal display device.
１ 照明装置 ２ 液晶パネル ３ 導光板 ４ 長尺円筒状光源 ６ 光拡散板 ７ 光反射板 ８ 光源用反射板 ９、１１ 金属ケース ９ａ、１１ａ ケース １０、１２、１５ 凸部 １３ 樹脂製ケース １４ アルミニウム板 1 Lighting Device 2 Liquid Crystal Panel 3 Light Guide Plate 4 Long Cylindrical Light Source 6 Light Diffusing Plate 7 Light Reflecting Plate 8 Light Source Reflecting Plate 9, 11 Metal Case 9a, 11a Case 10, 12, 15 Convex 13 Resin Case 14 Aluminum Board
Claims (1)
主面に光拡散板を形成し、他主面上にドット状光散乱層
と光反射板とを順次を設け、この光反射板上に凸部を有
する金属板を配設するとともに、この凸部の頂部と光反
射板との当接する接触面積比率が長尺状光源から遠ざか
るにつれて、漸次大きくなることを特徴とする液晶表示
装置用照明装置。1. A light diffusing plate is formed on one main surface of a light guide plate having an elongated light source arranged on an end surface, and a dot-shaped light scattering layer and a light reflecting plate are sequentially provided on the other main surface. A metal plate having a convex portion is arranged on the light reflecting plate, and the contact area ratio of the abutting portion of the convex portion and the light reflecting plate gradually increases as the distance from the elongated light source increases. Lighting device for liquid crystal display devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6266528A JPH08129174A (en) | 1994-10-31 | 1994-10-31 | Illuminator for liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6266528A JPH08129174A (en) | 1994-10-31 | 1994-10-31 | Illuminator for liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08129174A true JPH08129174A (en) | 1996-05-21 |
Family
ID=17432143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6266528A Pending JPH08129174A (en) | 1994-10-31 | 1994-10-31 | Illuminator for liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08129174A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990069599A (en) * | 1998-02-11 | 1999-09-06 | 윤종용 | LCD device backlight |
| US6867832B2 (en) * | 2000-07-06 | 2005-03-15 | Nec Lcd Technologies, Ltd. | Reflector formed with highly reliable conductive pattern, process for fabricating reflector and liquid crystal display unit using the same |
| KR100500634B1 (en) * | 1998-03-18 | 2005-10-12 | 삼성전자주식회사 | LCD Module |
| KR100497618B1 (en) * | 1998-02-06 | 2005-10-24 | 삼성전자주식회사 | Backlight Assembly of TF LCD Module |
| KR100526000B1 (en) * | 1998-05-13 | 2006-01-12 | 삼성전자주식회사 | Heat dissipation structure of backlight assembly for LCD |
| KR100628434B1 (en) * | 1998-08-26 | 2006-12-04 | 삼성전자주식회사 | Backlight Assembly of Liquid Crystal Display |
| CN102410452A (en) * | 2010-09-17 | 2012-04-11 | Lg伊诺特有限公司 | Lighting module and lighting apparatus including same |
| CN102679243A (en) * | 2012-05-15 | 2012-09-19 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| WO2012129824A1 (en) * | 2011-03-31 | 2012-10-04 | 深圳市华星光电技术有限公司 | Back light module and display apparatus |
| US20120249926A1 (en) * | 2011-03-31 | 2012-10-04 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and display apparatus |
| US20130128532A1 (en) * | 2011-11-18 | 2013-05-23 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Flat Panel Display Device and Stereoscopic Display Device |
| CN111602001A (en) * | 2018-01-12 | 2020-08-28 | Lg伊诺特有限公司 | Lighting module and lighting device with same |
-
1994
- 1994-10-31 JP JP6266528A patent/JPH08129174A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100497618B1 (en) * | 1998-02-06 | 2005-10-24 | 삼성전자주식회사 | Backlight Assembly of TF LCD Module |
| KR19990069599A (en) * | 1998-02-11 | 1999-09-06 | 윤종용 | LCD device backlight |
| KR100500634B1 (en) * | 1998-03-18 | 2005-10-12 | 삼성전자주식회사 | LCD Module |
| KR100526000B1 (en) * | 1998-05-13 | 2006-01-12 | 삼성전자주식회사 | Heat dissipation structure of backlight assembly for LCD |
| KR100628434B1 (en) * | 1998-08-26 | 2006-12-04 | 삼성전자주식회사 | Backlight Assembly of Liquid Crystal Display |
| US6867832B2 (en) * | 2000-07-06 | 2005-03-15 | Nec Lcd Technologies, Ltd. | Reflector formed with highly reliable conductive pattern, process for fabricating reflector and liquid crystal display unit using the same |
| US7136123B2 (en) | 2000-07-06 | 2006-11-14 | Nec Lcd Technologies, Ltd. | Reflector formed with highly reliable conductive pattern, process for fabricating reflector and liquid crystal display unit using the same |
| CN102410452A (en) * | 2010-09-17 | 2012-04-11 | Lg伊诺特有限公司 | Lighting module and lighting apparatus including same |
| CN102971662A (en) * | 2011-03-31 | 2013-03-13 | 深圳市华星光电技术有限公司 | Back light module and display apparatus |
| WO2012129824A1 (en) * | 2011-03-31 | 2012-10-04 | 深圳市华星光电技术有限公司 | Back light module and display apparatus |
| US20120249926A1 (en) * | 2011-03-31 | 2012-10-04 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and display apparatus |
| US20130128532A1 (en) * | 2011-11-18 | 2013-05-23 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Flat Panel Display Device and Stereoscopic Display Device |
| CN102679243A (en) * | 2012-05-15 | 2012-09-19 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN111602001A (en) * | 2018-01-12 | 2020-08-28 | Lg伊诺特有限公司 | Lighting module and lighting device with same |
| US11519568B2 (en) | 2018-01-12 | 2022-12-06 | Lg Innotek Co., Ltd. | Lighting module and lighting device having same |
| US11796139B2 (en) | 2018-01-12 | 2023-10-24 | Lg Innotek Co., Ltd. | Lighting module and lighting device having same |
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