JP3019466U - Liquid crystal display backlight device - Google Patents
Liquid crystal display backlight deviceInfo
- Publication number
- JP3019466U JP3019466U JP1995007380U JP738095U JP3019466U JP 3019466 U JP3019466 U JP 3019466U JP 1995007380 U JP1995007380 U JP 1995007380U JP 738095 U JP738095 U JP 738095U JP 3019466 U JP3019466 U JP 3019466U
- Authority
- JP
- Japan
- Prior art keywords
- backlight device
- plate
- light
- crystal display
- liquid crystal
- 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.)
- Expired - Lifetime
Links
Landscapes
- Liquid Crystal (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
(57)【要約】
【目的】 液晶ディスプレイのバックライト装置。
【構成】 光伝導板の一側が光源とされ、上部は拡散板
に結合し、下部には一反射板が設けられたバックライト
装置であって、上記光伝導板の底層は光乱反射粒子を含
有し、それは光伝導板成形時に直接光乱反射粒子を液態
アクリルモノマー、望ましくは、メタクリル酸メチル、
に混合してから型内に注入して重合成形してなる。
(57) [Abstract] [Purpose] Liquid crystal display backlight device. A backlight device in which one side of a photoconductive plate serves as a light source, an upper part is coupled to a diffusion plate, and one reflective plate is provided in a lower part, wherein a bottom layer of the photoconductive plate contains diffused reflection particles. However, when the photoconductive plate is formed, the light-scattering particles are directly reflected by the liquid acrylic monomer, preferably methyl methacrylate,
After being mixed with the above, the mixture is poured into a mold and polymerized and molded.
Description
【０００１】[0001]
本考案は一種の液晶ディスプレイのバックライト装置（Ｂａｃｋ Ｌｉｇｈｔ ｉｎｇ Ｄｅｖｉｃｅ）に関し、特に光を乱反射させる粒子を直接混合して光伝 導板の底層を成形することで、透明樹脂の吸光現象を防ぎ、最良の乱反射効果を 達成してその表面輝度を高めたものに関する。 The present invention relates to a back light device of a liquid crystal display, in particular, by directly mixing particles that diffusely reflect light to form a bottom layer of a light guide plate, thereby preventing a light absorption phenomenon of a transparent resin. Achieves the best diffuse reflection effect and enhances its surface brightness.
【０００２】[0002]
周知の液晶ディスプレイ（ＬＣＤ）の光伝導板及びバックライト装置の構造は 、図１、図２に示される如きであり、図１は平板式、図２は斜板式のバックライ ト装置を示し、いずれも一つの透明アクリル板を有してそれが光伝導板１（Ｐｈ ｏｔｏ Ｃｏｎｄｕｃｔｉｖｅ Ｐｌａｔｅ）とされ、その背面には光乱反射粒 子２１を含む透明樹脂インク層２が設けられ、下部は反射板５に結合しており、 表面には拡散板が設けられている。前述の光乱反射粒子２１は屈折率の異なるア クリル樹脂の微小な球形ガラス系材料とされる。光伝導板１側方の光源１１から 照射される光線に光乱反射粒子を経させて、全体のバックライト装置に良好で均 一な輝度を得させる。 The structure of a known photoconductive plate and a backlight device of a liquid crystal display (LCD) is as shown in FIGS. 1 and 2, FIG. 1 shows a flat plate type backlight device, and FIG. 2 shows a swash plate type backlight device. It also has one transparent acrylic plate, which is a photoconductive plate 1 and has a transparent resin ink layer 2 including a diffused reflection particle 21 on its back surface and a reflection plate 5 at the bottom. It has a diffuser plate on its surface. The light diffusely reflecting particles 21 are made of fine spherical glass-based material of acrylic resin having different refractive indexes. Light rays emitted from the light source 11 on the side of the photoconductive plate 1 are caused to pass through diffused reflection particles, so that the entire backlight device can obtain good and uniform brightness.
【０００３】 ただし、従来のこのような構造では、光線はまずインク中の透明樹脂を穿過し 、さらに光乱反射粒子２１に接触して乱反射を形成するが、この過程中、透明樹 脂は吸光現象（Ｌｉｇｈｔ Ａｂｓｏｒｐｔｉｏｎ Ｂｒｉｇｈｔｎｅｓｓ）を 有するためにバックライト装置の表面輝度（Ｓｕｒｆａｃｅ Ｂｒｉｇｈｔｎｅ ｓｓ）が減る場合があり、これがその主な欠点であった。However, in such a conventional structure, a light beam first penetrates through the transparent resin in the ink and further contacts the diffused reflection particles 21 to form diffused reflection. During this process, the transparent resin absorbs light. In some cases, the surface brightness of the backlight device is reduced due to the phenomenon of “Light Absorption Brightness”, which is the main drawback.
【０００４】[0004]
本考案の主な課題は、液晶ディスプレイの光伝導板とバックライト装置に改良 を加え、完全な反射効果を達成し、バックライト装置の表面輝度を増し、実用的 な効果を高めることである。 The main problem of the present invention is to improve the photoconductive plate of the liquid crystal display and the backlight device to achieve a perfect reflection effect, increase the surface brightness of the backlight device, and enhance the practical effect.
【０００５】[0005]
本考案の液晶ディスプレイのバックライト装置は、光伝導板の一側が光源とさ れ、上部は拡散板に結合し、下部には一反射板が設けられたバックライト装置で あって、上記光伝導板の底層は光乱反射粒子を含有し、それは光伝導板成形時に 直接光乱反射粒子を液態アクリルモノマー、望ましくは、メタクリル酸メチル、 に混合してから型内に注入して重合成形してなることを特徴とする。 The backlight device for liquid crystal display of the present invention is a backlight device in which one side of the photoconductive plate is a light source, the upper part is coupled to the diffusion plate, and the one reflective plate is provided in the lower part. The bottom layer of the plate contains light-diffusive reflection particles, which are formed by directly mixing the light-diffusive reflection particles with a liquid acrylic monomer, preferably methyl methacrylate, and then injecting it into a mold to polymerize the photoconductive plate. Is characterized by.
【０００６】[0006]
本考案の液晶ディスプレイのバックライト装置は、光乱反射粒子を含む光伝導 板を利用したことで、光線を反射する時に透明樹脂層を介する必要がないため、 完全に吸光の不良現象を防ぎ、光乱反射効果とその表面輝度を高めることができ る。 The liquid crystal display backlight device of the present invention uses the photoconductive plate containing the diffused reflection particles, so that it is not necessary to interpose the transparent resin layer when reflecting light rays, so that the phenomenon of defective absorption can be completely prevented. The diffuse reflection effect and its surface brightness can be enhanced.
【０００７】[0007]
図３、４は、それぞれ本考案の平板式バックライト装置及び斜板式バックライ ト装置の実施例を示す。図３の平板式のものを以下に説明する。 3 and 4 show embodiments of a flat plate type backlight device and a swash plate type backlight device of the present invention, respectively. The flat plate type of FIG. 3 will be described below.
【０００８】 本考案は、光伝導板４、上部拡散板３及び下部の反射板５を包括し、その中、 光伝導板４の成形は、光乱反射粒子４１を直接液態のアクリルモノマー（Ｍｏｎ ｏｍｅｒ）に混入し、さらに型に注入して加温し、重合させ、内に光乱反射粒子 ４１を含有するアクリル光伝導板４となす。光乱反射粒子４１の比重は液態アク リル単体により異なり、メタクリル酸メチル（Ｍｅｔｈｙｌ Ｍｅｔｈａｃｒｙ ｌａｔｅｓ）では、成形時に光伝導板４の底層にあって完全な光乱反射層を形成 でき、並びに光源から離れることで光乱反射粒子の密度を増加し、即ち、光源か ら離れるほど密度を高く設けることで最良で均一の表面光度を得ることができる 。The present invention includes a photoconductive plate 4, an upper diffusion plate 3 and a lower reflection plate 5, in which the photoconductive plate 4 is formed by directly scattering the light scattering reflection particles 41 into a liquid monomer (monomer). ), Poured into a mold, heated and polymerized to form an acrylic photoconductive plate 4 containing light diffusely reflecting particles 41 therein. The specific gravity of the light diffuse reflection particles 41 differs depending on the liquid acrylic simple substance. With methyl methacrylate (Methyl Methacrylate plates), a perfect light diffuse reflection layer can be formed at the bottom layer of the photoconductive plate 4 at the time of molding, and by separating from the light source. It is possible to obtain the best and uniform surface luminous intensity by increasing the density of light diffusely reflecting particles, that is, by increasing the density as the distance from the light source increases.
【０００９】[0009]
【考案の効果】 本考案は、光乱反射粒子を含む光伝導板を利用し、光線を反射する時に透明樹 脂層を介する必要がないため、完全に吸光の不良現象を防ぎ、光乱反射効果とそ の表面輝度を高めることができ、便利な実用的価値を有する。[Effect of the Invention] The present invention utilizes a photoconductive plate containing light-diffusive reflection particles and does not require a transparent resin layer when reflecting a light beam, thus completely preventing the phenomenon of poor absorption and providing a light reflection effect. Its surface brightness can be increased, and it has convenient practical value.
【図面の簡単な説明】[Brief description of drawings]
【図１】従来の平板式バックライト装置の断面図であ
る。FIG. 1 is a cross-sectional view of a conventional flat panel backlight device.
【図２】従来の斜板式バックライト装置の断面図であ
る。FIG. 2 is a cross-sectional view of a conventional swash plate type backlight device.
【図３】本考案の平板式バックライト装置の断面図であ
る。FIG. 3 is a cross-sectional view of a flat panel backlight device of the present invention.
【図４】本考案の斜板式バックライト装置の断面図であ
る。FIG. 4 is a sectional view of a swash plate type backlight device of the present invention.
４・・・光伝導板 ３・・・上部拡散板 ５・・・反射
板 ４１・・・光乱反射粒子4 ... Photoconductive plate 3 ... Upper diffuser plate 5 ... Reflector plate 41 ... Diffuse reflection particles
Claims (2)
散板に結合し、下部には一反射板が設けられたバックラ
イト装置であって、上記光伝導板の底層は光乱反射粒子
を含有し、それは光伝導板成形時に直接光乱反射粒子を
液態アクリルモノマーに混合してから型内に注入して重
合成形してなることを特徴とする、液晶ディスプレイの
バックライト装置。1. A backlight device in which one side of a photoconductive plate serves as a light source, an upper part is coupled to a diffusion plate, and one reflective plate is provided in a lower part, wherein the bottom layer of the photoconductive plate is diffused reflection particles. A backlight device for a liquid crystal display, characterized in that it comprises a light-scattering particle directly mixed with a liquid acrylic monomer at the time of molding a photoconductive plate, and then is injected into a mold for polymerization molding.
メチルを原料となす、請求項１に記載の液晶ディスプレ
イのバックライト装置。2. The backlight device for a liquid crystal display according to claim 1, wherein the liquid acrylic monomer is made of methyl methacrylate as a raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995007380U JP3019466U (en) | 1995-06-15 | 1995-06-15 | Liquid crystal display backlight device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995007380U JP3019466U (en) | 1995-06-15 | 1995-06-15 | Liquid crystal display backlight device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3019466U true JP3019466U (en) | 1995-12-19 |
Family
ID=43154878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1995007380U Expired - Lifetime JP3019466U (en) | 1995-06-15 | 1995-06-15 | Liquid crystal display backlight device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3019466U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012506608A (en) * | 2008-10-21 | 2012-03-15 | アイティーアイ スコットランド リミテッド | Light guide |
-
1995
- 1995-06-15 JP JP1995007380U patent/JP3019466U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012506608A (en) * | 2008-10-21 | 2012-03-15 | アイティーアイ スコットランド リミテッド | Light guide |
| JP2015015259A (en) * | 2008-10-21 | 2015-01-22 | アイティーアイ スコットランド リミテッド | Light guides |
| JP2017033949A (en) * | 2008-10-21 | 2017-02-09 | デザイン エルイーディー プロダクツ リミテッド | Light guides |
| US9709721B2 (en) | 2008-10-21 | 2017-07-18 | Design Led Products Limited | Light guides |
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