JPH0728059A - Illumination device for liquid crystal display device - Google Patents

Illumination device for liquid crystal display device

Info

Publication number
JPH0728059A
JPH0728059A JP5167572A JP16757293A JPH0728059A JP H0728059 A JPH0728059 A JP H0728059A JP 5167572 A JP5167572 A JP 5167572A JP 16757293 A JP16757293 A JP 16757293A JP H0728059 A JPH0728059 A JP H0728059A
Authority
JP
Japan
Prior art keywords
reflection plate
liquid crystal
crystal display
shape
display device
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
Application number
JP5167572A
Other languages
Japanese (ja)
Inventor
Shintaro Aoyama
新太郎 青山
Hiroyuki Ishihara
博幸 石原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP5167572A priority Critical patent/JPH0728059A/en
Publication of JPH0728059A publication Critical patent/JPH0728059A/en
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To integrally constitute a reflection part and circuit part to reduce the size by forming recessed part on the rear surface of a reflection plate by matching the shape of the reflection plate with the shape of illumination and arranging the circuit part therein. CONSTITUTION:In the reflection plate 1 for illuminating the liquid crystal display device, two pieces of the peak-shaped ruggedness are formed and three pieces of cathode ray tubes 2 which are the illumination are arranged in the spacings thereof. The light beams emitted from the cold cathode ray tubes 2 are introduced toward the liquid crystal display device directly or after reflection by the reflection plate 1 on the illumination side surface. The shape of the reflection plate 1 is adjusted to be such a shape that the direct light and reflected light from three pieces of the cathode ray tubes 2 are uniformly introduced to the liquid crystal display device. The circuit parts 3 are arranged in the recessed parts formed on the rear surface of the reflection plate 1. Namely, the circuit parts 3 are arranged into the gaps generated on the rear surface of the reflection plate 1 by forming the shape of the reflection plate 1 constituting the illumination device to have the ruggedness meeting the shape of the illumination. Therefore, the size over the entire part is reduced.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は液晶表示装置に用いられ
る照明装置の構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a lighting device used in a liquid crystal display device.

【０００２】[0002]

【従来の技術】従来この種の、液晶表示装置用照明装置
では、それを構成する反射板は図２に示すように平坦な
形状で構成されていた。2. Description of the Related Art Conventionally, in a lighting device for a liquid crystal display device of this type, a reflecting plate constituting the lighting device has a flat shape as shown in FIG.

【０００３】[0003]

【発明が解決しようとする課題】上述した従来の照明装
置と組み合わされた液晶表示装置では、反射板が平坦で
あることから、複数の照明を使用する場合でも照明と照
明との間に必要な回路部品を配置することができず、こ
れらの回路部品を液晶表示装置周辺に配置せざるを得な
いという欠点を有していた。In the liquid crystal display device combined with the above-mentioned conventional lighting device, since the reflecting plate is flat, it is necessary between the lighting devices even when a plurality of lighting devices are used. There is a drawback in that the circuit parts cannot be arranged, and these circuit parts have to be arranged around the liquid crystal display device.

【０００４】本発明の目的は液晶表示装置用照明装置の
照明部分の反射部と回路部を一体的に構成し、小型化す
ることにある。An object of the present invention is to reduce the size of a lighting device for a liquid crystal display device by integrally forming a reflection part and a circuit part of the lighting part.

【０００５】[0005]

【課題を解決するための手段】本発明の液晶表示装置用
照明装置では照明装置を構成する反射板の形状を照明の
形状にあわせることで、反射板背面に凹部を形成し、そ
こに必要な回路部品を配置することが可能となるよう
に、照明装置を構成する。In the lighting device for a liquid crystal display device of the present invention, a concave portion is formed on the back surface of the reflecting plate by matching the shape of the reflecting plate which constitutes the lighting device with the shape of the illumination, and the necessary concave portion is formed there. The lighting device is configured so that circuit components can be arranged.

【０００６】[0006]

【実施例】本発明について図面を参照して説明する。図
１は本発明の一実施例の液晶表示装置用照明装置を示す
図である。液晶表示装置を照明するための反射板１を設
ける。反射板１には２つの山形の凹凸を施し、その間隙
に３本の照明となる冷陰極管２を配置する。冷陰極管２
から発せられた光は、直接、もしくは照明側面の反射板
１によって反射され、液晶表示装置の方向へ（例えば図
の上方で、図示していない）、導かれる。反射板１の形
状は３本の冷陰極管２からの直接光及び反射光が液晶表
示装置に対して均一に導かれるような形状に調整する。
反射板１の背面にできた凹部に回路部品３を配置する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a lighting device for a liquid crystal display device according to an embodiment of the present invention. A reflector 1 is provided to illuminate the liquid crystal display device. The reflector 1 is provided with two chevron-shaped irregularities, and three cold cathode tubes 2 serving as illuminations are arranged in the gap. Cold cathode tube 2
The light emitted from is reflected directly or by the reflector 1 on the side of the illumination and is guided toward the liquid crystal display device (for example, in the upper part of the drawing, not shown). The shape of the reflector 1 is adjusted so that the direct light and the reflected light from the three cold cathode tubes 2 are uniformly guided to the liquid crystal display device.
The circuit component 3 is arranged in the recess formed on the back surface of the reflector 1.

【０００７】[0007]

【発明の効果】以上に示したように、本発明では液晶表
示装置用の照明装置を構成する反射板の形状を、照明の
形状をあわせて凹凸を施すことで反射板の背面に生じた
空隙に回路部品を配置することで、液晶表示装置全体の
大きさを小型化することができる。As described above, according to the present invention, the shape of the reflection plate constituting the illuminating device for the liquid crystal display device is made to be uneven according to the shape of the illumination so that the voids formed on the back surface of the reflection plate. By arranging the circuit components in the liquid crystal display device, the size of the entire liquid crystal display device can be reduced.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例を説明するための図である。FIG. 1 is a diagram for explaining an embodiment of the present invention.

【図２】従来の液晶表示装置用照明装置を説明するため
の図である。FIG. 2 is a diagram illustrating a conventional illumination device for a liquid crystal display device.

【符号の説明】[Explanation of symbols]

１ 反射板 ２ 冷陰極管（照明） ３ 回路部品 1 Reflector 2 Cold cathode tube (illumination) 3 Circuit parts

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 複数の照明から発せられた光を反射する
ための反射板に照明の形状にあわせた凹凸を施し、照明
と照明の間隙にあたる反射板背面に回路部品を配置した
ことを特徴とする液晶表示装置用照明装置。1. A reflection plate for reflecting light emitted from a plurality of illuminations is provided with irregularities according to the shape of the illuminations, and circuit parts are arranged on the back surface of the reflection plate which is a gap between the illuminations. Lighting device for liquid crystal display device.
JP5167572A 1993-07-07 1993-07-07 Illumination device for liquid crystal display device Pending JPH0728059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5167572A JPH0728059A (en) 1993-07-07 1993-07-07 Illumination device for liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5167572A JPH0728059A (en) 1993-07-07 1993-07-07 Illumination device for liquid crystal display device

Publications (1)

Publication Number Publication Date
JPH0728059A true JPH0728059A (en) 1995-01-31

Family

ID=15852229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5167572A Pending JPH0728059A (en) 1993-07-07 1993-07-07 Illumination device for liquid crystal display device

Country Status (1)

Country Link
JP (1) JPH0728059A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851785B4 (en) * 1998-11-10 2005-10-13 Aeg Gesellschaft für Moderne Informationssysteme mbH Liquid crystal display device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6334512A (en) * 1986-07-30 1988-02-15 Nec Home Electronics Ltd Iluminating device for fluorescent lamp
JPH01167730A (en) * 1987-12-23 1989-07-03 Matsushita Electric Ind Co Ltd Display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6334512A (en) * 1986-07-30 1988-02-15 Nec Home Electronics Ltd Iluminating device for fluorescent lamp
JPH01167730A (en) * 1987-12-23 1989-07-03 Matsushita Electric Ind Co Ltd Display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851785B4 (en) * 1998-11-10 2005-10-13 Aeg Gesellschaft für Moderne Informationssysteme mbH Liquid crystal display device

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A02 Decision of refusal

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Effective date: 19960827