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CN1442733A - Light tube and liquid crystal display using the light tube - Google Patents

Light tube and liquid crystal display using the light tube Download PDF

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Publication number
CN1442733A
CN1442733A CN 02106662 CN02106662A CN1442733A CN 1442733 A CN1442733 A CN 1442733A CN 02106662 CN02106662 CN 02106662 CN 02106662 A CN02106662 A CN 02106662A CN 1442733 A CN1442733 A CN 1442733A
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China
Prior art keywords
mentioned
light
tube
guide plate
opening
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CN 02106662
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Chinese (zh)
Inventor
邱怡萱
孙明申
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AUO Corp
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AU Optronics Corp
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Priority to CN 02106662 priority Critical patent/CN1442733A/en
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  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

The invention provides a lamp tube, which comprises a transparent tube and a phosphor; wherein the phosphor is formed within the cavity of the transparent tube. The lamp tube also comprises a reflecting layer coated on part of the tube wall of the transparent tube. The reflecting layer has an opening through which light is reflected by the reflecting layer on the transparent tube wall when the phosphor emits light, and the light is emitted in a concentrated direction through the opening. In the liquid crystal display using the lamp tube, the light beam entering the light guide plate can be increased, and the brightness of the liquid crystal display can be further increased.

Description

灯管及使用此灯管的液晶显示器Light tube and liquid crystal display using the light tube

                          技术领域Technical field

本发明涉及一种灯管，特别是涉及一种可增加显示器亮度的灯管。The invention relates to a lamp tube, in particular to a lamp tube capable of increasing the brightness of a display.

                          背景技术 Background technique

图1为一种现有的灯管。如图1所示，现有的灯管10包括一透明管1、设置于透明管1内的电极2a、2b以及形成于透明管1内的磷光体3。Fig. 1 is a kind of existing lamp tube. As shown in FIG. 1 , a conventional lamp tube 10 includes a transparent tube 1 , electrodes 2 a and 2 b disposed in the transparent tube 1 , and a phosphor 3 formed in the transparent tube 1 .

现有的灯管发光时，光会均匀地自灯管周围发射，形成圆形的发光场图。图2为一种具有反射罩的灯管示意图。当灯管10预定照射某一区域时，为了避免浪费非朝向指定方向发射的光，则利用一反射罩4将均匀地自灯管周围发射的光照射至指定区域，如图2所示。When the existing lamp tube emits light, the light will be evenly emitted from around the lamp tube to form a circular luminous field pattern. Fig. 2 is a schematic diagram of a lamp tube with a reflector. When the lamp tube 10 is intended to irradiate a certain area, in order to avoid wasting light emitted in a non-designated direction, a reflector 4 is used to irradiate the light emitted uniformly from around the lamp tube to the designated area, as shown in FIG. 2 .

然而，具有反射罩的灯管增加灯管的体积与空间，而且，液晶显示器使用具有反射罩的灯管，还增加液晶显示器的厚度。However, the lamp tube with the reflector increases the volume and space of the lamp tube, and the liquid crystal display uses the lamp tube with the reflector, which also increases the thickness of the liquid crystal display.

                          发明内容Contents of Invention

本发明的目的在于提供一种灯管，其中，在灯管的管壁形成具有一开口的反射层，通过具有开口的反射层，将灯管内的磷光体发射的光线，集中地自此开口发射。The object of the present invention is to provide a lamp tube, wherein a reflective layer with an opening is formed on the tube wall of the lamp tube, through the reflective layer with an opening, the light emitted by the phosphor in the lamp tube is concentrated from the opening emission.

本发明的另一目的在于提供一种灯管，其包括：一透明管、形成于此透明管内的一磷光体以及设置于透明管内的电极；其中，本发明还包括具有开口的一反射层，形成于透明管的管壁。当电极放电造成磷光体发光时，自反射层的开口发出此光。Another object of the present invention is to provide a lamp tube, which includes: a transparent tube, a phosphor formed in the transparent tube, and electrodes disposed in the transparent tube; wherein, the present invention also includes a reflective layer with an opening, Formed on the walls of transparent tubes. When the discharge of the electrodes causes the phosphor to emit light, this light emerges from the openings in the reflective layer.

本发明的再一目的在于提供一种液晶显示器，包括一液晶面板、一扩散构件、一导光板、一灯管以及一反射板；其中，灯管包括一透明管、形成于此透明管内的一磷光体、设置于透明管内的电极以及形成于透明管之管壁的一具有开口的反射层。当电极放电造成磷光体发光时，光线经反射层反射后，集中自反射层之开口发出并进入上述导光板。接着，通过导光板、反射板与扩散构件将光均匀地照射液晶面板。最后，液晶面板产生极亮的图像。Another object of the present invention is to provide a liquid crystal display, including a liquid crystal panel, a diffusion member, a light guide plate, a lamp tube and a reflector; wherein, the lamp tube includes a transparent tube, a Phosphor, electrodes arranged in the transparent tube and a reflective layer with openings formed on the tube wall of the transparent tube. When the electrode discharge causes the phosphor to emit light, after being reflected by the reflective layer, the light is concentrated and emitted from the opening of the reflective layer and enters the above-mentioned light guide plate. Next, light is uniformly irradiated to the liquid crystal panel through the light guide plate, the reflection plate and the diffusion member. Finally, the LCD panel produces extremely bright images.

本发明的一特点在于，上述具有开口的反射层形成在透明管的内壁上，以及磷光体形成于透明管内且覆盖上述反射层。A feature of the present invention is that the reflective layer with openings is formed on the inner wall of the transparent tube, and the phosphor is formed in the transparent tube and covers the reflective layer.

本发明的另一特点在于，上述具有开口的反射层形成于透明管的外壁上，且磷光体形成于透明管的内壁上。Another feature of the present invention is that the reflective layer with openings is formed on the outer wall of the transparent tube, and the phosphor is formed on the inner wall of the transparent tube.

本发明的优点在于，磷光体产生的光通过反射层的开口发射出方向集中的光。An advantage of the present invention is that the light generated by the phosphor emits direction-concentrated light through the openings of the reflective layer.

                          附图说明Description of drawings

图1为一种现有的灯管；Fig. 1 is a kind of existing lamp tube;

图2为一种具有反射罩的现有灯管；Fig. 2 is a kind of existing lamp tube with reflector;

图3A为本发明灯管的第一实施例的纵向截面图；3A is a longitudinal sectional view of the first embodiment of the lamp tube of the present invention;

图3B为本发明灯管的第一实施例的横向截面图；Fig. 3B is a transverse cross-sectional view of the first embodiment of the lamp tube of the present invention;

图3C为本发明灯管的第二实施例的纵向截面图；Fig. 3C is a longitudinal sectional view of the second embodiment of the lamp tube of the present invention;

图3D为本发明灯管的第三实施例的纵向截面图；Fig. 3D is a longitudinal sectional view of a third embodiment of the lamp tube of the present invention;

图4为使用本发明灯管的液晶显示器。Fig. 4 is a liquid crystal display using the lamp tube of the present invention.

                      具体实施方式 Detailed ways

图3A为本发明灯管的第一实施例的纵向截面图；图3B为本发明第一实施例的横向截面图。如图3A与图3B所示，本发明的灯管20包括一透明管1、一磷光体3、放电电极2以及具有开口6的反射层5。Fig. 3A is a longitudinal sectional view of the first embodiment of the lamp tube of the present invention; Fig. 3B is a transverse sectional view of the first embodiment of the present invention. As shown in FIGS. 3A and 3B , the lamp tube 20 of the present invention includes a transparent tube 1 , a phosphor 3 , a discharge electrode 2 and a reflective layer 5 with an opening 6 .

参考图3A，在透明管1的内壁1a上形成一反射层5；其中，反射层5具有一开口6。接着，磷光体3覆盖上述具有开口6的反射层5。参考图3B，电极2a、2b分别设置于透明管1的两端。Referring to FIG. 3A , a reflective layer 5 is formed on the inner wall 1 a of the transparent tube 1 ; wherein the reflective layer 5 has an opening 6 . Next, the phosphor 3 covers the above-mentioned reflective layer 5 with the opening 6 . Referring to FIG. 3B , the electrodes 2 a and 2 b are respectively disposed at both ends of the transparent tube 1 .

当电极2a、2b在透明管1内放电时，可使磷光体3发光。其中，部分光线直接由开口6发射，而大部分光线通过反射层5反射后，再经由反射层5的开口6发射出去。When the electrodes 2a, 2b are discharged in the transparent tube 1, the phosphor 3 can be made to emit light. Wherein, part of the light is directly emitted from the opening 6 , and most of the light is emitted through the opening 6 of the reflection layer 5 after being reflected by the reflective layer 5 .

图3C为本发明灯管的第二实施例的纵截面图；参考图3C，灯管30的反射层5形成于透明管1的外壁1b上，磷光体3形成于透明管1的内壁1a上，且反射层具有一开口6。图3D为本发明灯管的第三实施例的纵截面图。参考图3D，灯管40还包括一保护层7，且形成于磷光体3之上。Fig. 3 C is the longitudinal sectional view of the second embodiment of the lamp tube of the present invention; Referring to Fig. 3C, the reflection layer 5 of the lamp tube 30 is formed on the outer wall 1b of the transparent tube 1, and the phosphor 3 is formed on the inner wall 1a of the transparent tube 1 , and the reflection layer has an opening 6 . Fig. 3D is a longitudinal sectional view of the third embodiment of the lamp tube of the present invention. Referring to FIG. 3D , the lamp tube 40 further includes a protective layer 7 formed on the phosphor 3 .

图4为使用本发明灯管的液晶显示器。如图4所示，液晶显示器200包括：一液晶面板250、一导光板210、一反射板220以及一灯管20；其中，于液晶面板250与导光板210之间设置一扩散构件(diffusing means)240。导光板210具有一第一平面211、一第二平面212以及一光接收面213。第一平面211与第二平面212彼此互相对立，光接收面213位于导光板210的侧边，且邻接第一平面211与第二平面212。灯管20设置于导光板210旁，且灯管20的开口6朝向光接收面213。反射板220与第一平面211仳邻设置，且导光板210设置于液晶面板250与反射板220之间。Fig. 4 is a liquid crystal display using the lamp tube of the present invention. As shown in Figure 4, the liquid crystal display 200 comprises: a liquid crystal panel 250, a light guide plate 210, a reflector 220 and a lamp tube 20; )240. The light guide plate 210 has a first plane 211 , a second plane 212 and a light receiving surface 213 . The first plane 211 and the second plane 212 are opposite to each other, and the light receiving surface 213 is located at a side of the light guide plate 210 and adjacent to the first plane 211 and the second plane 212 . The lamp tube 20 is disposed beside the light guide plate 210 , and the opening 6 of the lamp tube 20 faces the light receiving surface 213 . The reflection plate 220 is disposed adjacent to the first plane 211 , and the light guide plate 210 is disposed between the liquid crystal panel 250 and the reflection plate 220 .

如图4所示，当灯管20发光时，光线集中自灯管的开口6入射导光板210的光接收面213。接着，进入导光板210的光通过导光板210、反射板220与扩散构件240均匀地照射液晶面板250。最后，自液晶面板250发出均匀的光线。As shown in FIG. 4 , when the lamp tube 20 emits light, the light is concentrated from the opening 6 of the lamp tube and enters the light receiving surface 213 of the light guide plate 210 . Then, the light entering the light guide plate 210 uniformly irradiates the liquid crystal panel 250 through the light guide plate 210 , the reflection plate 220 and the diffusion member 240 . Finally, uniform light is emitted from the liquid crystal panel 250 .

在本发明中，扩散构件240设置于导光板210的第二平面212上，其中扩散构件240依序包括一雾化薄板(diffusing sheet)241、一棱镜薄板(prismsheet)242及一保护薄膜(protecting film)243。保护薄膜243与导光板210的第二平面212仳邻设置，且雾化薄板241与液晶面板250仳邻设置。In the present invention, the diffusing member 240 is arranged on the second plane 212 of the light guide plate 210, wherein the diffusing member 240 includes a diffusing sheet (diffusing sheet) 241, a prism sheet (prism sheet) 242 and a protective film (protecting) in sequence. film) 243. The protective film 243 is adjacent to the second plane 212 of the light guide plate 210 , and the atomized thin plate 241 is adjacent to the liquid crystal panel 250 .

在本发明中，可在透明管的内壁上均匀形成反射层后，接着利用激光移除方式(laser blasting method)形成反射层的开口。In the present invention, after the reflective layer is uniformly formed on the inner wall of the transparent tube, a laser blasting method is used to form the opening of the reflective layer.

虽然本发明结合以上一较佳实施例揭露了本发明，然而其并非用以限定本发明，任何本领域技术人员在不脱离本发明的精神和范围，可作一些更动与润饰，因此本发明的保护范围应以权利要求所界定的为准。Although the present invention discloses the present invention in conjunction with the above preferred embodiment, it is not intended to limit the present invention. Any skilled person in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection should be defined by the claims.

Claims (12)

1. fluorescent tube comprises at least:
One transparent tube has a tube wall;
One reflection horizon has an opening, is formed on the inwall of above-mentioned tube wall;
One phosphor is formed in the above-mentioned transparent tube, covers above-mentioned reflection horizon with opening; And
A plurality of electrodes are arranged in the transparent tube;
Wherein, produce light when above-mentioned phosphor passes through above-mentioned electrode discharge, above-mentioned light is launched after being concentrated to above-mentioned opening by above-mentioned reflection horizon.
2. fluorescent tube as claimed in claim 1 also comprises a protective seam, covers above-mentioned phosphor.
3. fluorescent tube as claimed in claim 1, wherein the inwall at above-mentioned tube wall is formed uniformly above-mentioned reflection horizon, then utilizes laser to remove method and forms above-mentioned opening.
4. fluorescent tube comprises at least:
One transparent tube has a tube wall;
One reflection horizon has an opening, is formed on the outer wall of above-mentioned tube wall;
One phosphor is formed on the inwall of above-mentioned tube wall; And
A plurality of electrodes are arranged in the transparent tube;
Wherein, when above-mentioned phosphor produces light by above-mentioned electrode discharge, by above-mentioned reflection horizon above-mentioned light is concentrated and launched by above-mentioned opening.
5. fluorescent tube as claimed in claim 4 also comprises a protective seam, covers above-mentioned phosphor.
6. LCD comprises:
One light guide plate has one first plane, one second plane and a light receiving surface, the setting that opposes each other of wherein above-mentioned first plane and second plane, and above-mentioned light receiving surface is positioned at the side of this light guide plate, and in abutting connection with above-mentioned first plane and second plane;
One liquid crystal panel is with adjacent setting of the first plane part of above-mentioned light guide plate;
One reflecting plate is with adjacent setting of the second plane part of above-mentioned light guide plate; And
One fluorescent tube, it comprises at least:
One transparent tube has a tube wall;
One reflection horizon is formed on the inwall of above-mentioned tube wall and has an opening;
One phosphor is formed in the above-mentioned transparent tube and covers above-mentioned reflection horizon; And
A plurality of electrodes are arranged in the transparent tube;
The light receiving surface part of this fluorescent tube and above-mentioned light guide plate is adjacent to be provided with, and this opening is towards this light receiving surface;
When this lamp luminescence, above-mentioned phosphor produces light by above-mentioned electrode discharge, by above-mentioned reflection horizon light is concentrated and to be launched by above-mentioned opening, light is from the light receiving surface of the opening incident light guide plate of fluorescent tube, and by above-mentioned light guide plate and reflecting plate light is exposed to above-mentioned liquid crystal panel equably, make above-mentioned liquid crystal panel launch light beam equably.
7. LCD as claimed in claim 6 also comprises a pervasion component, is arranged between above-mentioned liquid crystal panel and the light guide plate.
8. LCD as claimed in claim 7, wherein above-mentioned pervasion component comprise a protective film, a prism thin plate, an atomizing thin plate in regular turn, and wherein above-mentioned protective film is arranged on the above-mentioned light guide plate.
9. LCD as claimed in claim 6, wherein above-mentioned fluorescent tube also comprises a protective seam, covers above-mentioned phosphor.
10. LCD as claimed in claim 6, wherein the inwall at above-mentioned tube wall is formed uniformly above-mentioned reflection horizon, then utilizes laser to remove method and forms above-mentioned opening in this reflection horizon.
11. a LCD comprises:
One light guide plate has one first plane, one second plane and a light receiving surface, the setting that opposes each other of above-mentioned first plane and second plane, and above-mentioned light receiving surface is positioned at the side of this light guide plate, and in abutting connection with above-mentioned first plane and second plane;
One liquid crystal panel is with adjacent setting of the first plane part of above-mentioned light guide plate;
One reflecting plate is with adjacent setting of the second plane part of above-mentioned light guide plate; And
One fluorescent tube, it comprises at least:
One transparent tube has a tube wall;
One reflection horizon is formed on the outer wall of above-mentioned tube wall and has an opening;
One phosphor is formed within the above-mentioned tube wall on the wall; And
Be arranged at a plurality of electrodes in the transparent tube
The light receiving surface part of this fluorescent tube and above-mentioned light guide plate is adjacent to be provided with, and the opening of fluorescent tube is towards this light receiving surface;
When this lamp luminescence, above-mentioned phosphor produces light by above-mentioned electrode discharge, by above-mentioned reflection horizon light is concentrated and to be launched by above-mentioned opening, light is from the light receiving surface of the opening incident light guide plate of fluorescent tube, and expose to above-mentioned liquid crystal panel equably by above-mentioned light guide plate and reflecting plate, make above-mentioned liquid crystal panel launch light beam equably.
12. LCD as claimed in claim 11, wherein above-mentioned fluorescent tube also comprises a protective seam, covers above-mentioned phosphor.
CN 02106662 2002-03-05 2002-03-05 Light tube and liquid crystal display using the light tube Pending CN1442733A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02106662 CN1442733A (en) 2002-03-05 2002-03-05 Light tube and liquid crystal display using the light tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02106662 CN1442733A (en) 2002-03-05 2002-03-05 Light tube and liquid crystal display using the light tube

Publications (1)

Publication Number Publication Date
CN1442733A true CN1442733A (en) 2003-09-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 02106662 Pending CN1442733A (en) 2002-03-05 2002-03-05 Light tube and liquid crystal display using the light tube

Country Status (1)

Country Link
CN (1) CN1442733A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109283688A (en) * 2018-11-09 2019-01-29 尚华 A kind of reflection-type light uniforming device and its preparation and application

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109283688A (en) * 2018-11-09 2019-01-29 尚华 A kind of reflection-type light uniforming device and its preparation and application
CN109283688B (en) * 2018-11-09 2019-08-16 尚华 A kind of reflection-type light uniforming device and its preparation and application

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