TWM332865U - External electrode fluorescent lamp and backlight module - Google Patents

Abstract

The present invention relates to an external electrode fluorescent lamp (EEFL) and a backlight module using the same. The EEFL includes an illuminating lamp and a pair of receivers. The illuminating lamp includes a discharging tube and a pair of electrodes located at outer sides of ends of the discharging lamp. Each of the receivers includes an insulated housing, and a lead wire received in the insulated housing. The insulated housing includes a conductive layer coated at an inner portion thereof. The lead wire is electrically connected with the conductive layer. The ends of the illuminating lamp are received in the insulated housing such that the electrodes are electrically connected with the conductive layer.

Description

M332865 VIII. New description: [New technical field] This creation is about the external electrode glory lamp and the module using the external electrode glory lamp. - [Prior technology]

Since the liquid crystal in the liquid crystal television and the liquid crystal display is too illuminating, the day itself does not emit light. Therefore, in order to achieve the display effect, the liquid crystal panel must be provided with a light source device such as a backlight module to realize the display function. The backlight module is usually a light-emitting diode, a Cold Cathode Fluorescent Lamp (CCFL) or the like as a light source. In recent years, the secret development of the optoelectronic industry, the industry is similar to the cold cathode glory light principle similar to the external electrode fluorescent lamp (External Electr〇de Flu_cent

Lamp, EEFL) 'The cold cathode fluorescent lamp has the advantages of simple structure, low cost and convenient application. Please refer to FIG. 1 , which is a perspective view of a prior art backlight module. The backlight module 1 includes a reflection sheet 120, a plurality of light sources 11A, and a diffusion sheet 130 in this order from bottom to top. The light source 110 is an external electrode fluorescent lamp, and includes a discharge tube 112 and two external electrodes 114. The two external electrodes 114 are respectively attached to the outer surface of the discharge tube 112. The discharge tube 112 is a sealed transparent glass tube filled with a discharge gas body (not shown), and the inner surface of the intermediate portion is coated with a fluorescent layer (not shown). When a high-frequency alternating voltage is applied to the two outer electrodes 114 of the light source 110, the discharge gas is ionized by the high-frequency alternating voltage, so that a plurality of conductive particles are generated in the discharge tube 112, and the discharge tube 112 is The two ends are also affected by the high frequency alternating current voltage of the two outer electrodes 114 to form a discharge electrode. The discharge electrode attracts the conductive particles, and the conductive particles move toward the discharge electrode to strike the discharge 6 M332865 electrode, thereby generating a plurality of secondary conductive particles having a certain kinetic energy - the particles collide with the molecules of the discharge gas to excite infrared enthalpy, a. The secondary conductive fluorescent layer emits visible light. The infrared light is usually connected in parallel via the unique 'complex light source 110, and the method of connecting the lamp tube on the outer electrode 114 is often used to realize the connection. This kind of ^ (π is not) welding is easy to fall off, and the H-type green sweater is reliably recorded. Moreover, the lamp line accommodates the metal sleeve and the discharge, and the end of the tube m (four) requires a higher contact between the metal sleeve and the outer electrode 114. , clothing ka is easy to lead [new content] In view of this, provide a kind of high reliability outside the electrode camp light households, provide - 郷 red material electrode county back is a must-type external electrode fluorescent lamp 'its Including - the lamp holder has a lamp holder end in the lamp holder in i. The lamp official includes a discharge tube and an electrode attached to the outer surface of the end of the discharge tube. Each lamp holder includes an insulating carrier and an electrode lead (10) disposed in the insulating carrier

The edge carrier _ is coated with a conductive layer, and the Wei pole 5 丨 outgoing line is electrically connected without a conductive coating: the end of the tube is inserted into the insulating carrier, so that the electrode outside the tube is disposed on the inner wall of the slab The conductive coating abuts. An external electrode fluorescent lamp comprising: a lamp holder for accommodating the end of the lamp tube. The tube includes a discharge tube and an electrode attached to an outer surface of the end of the discharge tube. Each of the lamp holders includes an insulating carrier and an electrode lead wire disposed in the insulating carrier, the insulating carrier includes a receiving cavity, and the receiving hollow wall is coated with a conductive surface, and the end of the light tube is received in the receiving The cavity is electrically connected to the conductive coating, and the electrode lead is electrically connected to the conductive coating. The moonlight module includes a reflection plate, a diffusion plate opposite to the reflection plate, and at least one external electrode fluorescent lamp disposed between the reflection plate and the diffusion plate. The outer electrode firefly 7 M332865 light lamp comprises a lamp tube and a lamp holder for accommodating the end of the lamp tube. The lamp tube includes a discharge tube and an electrode attached to an outer surface of the end portion of the discharge tube. Each of the lamp holders includes an electrode lead wire disposed in the insulating carrier, and the inner wall of the insulating carrier is coated with a conductive coating layer, the impurity index is electrically connected to the conductive coating, and the end of the lamp tube is inserted In the insulating carrier, the electrode outside the tube abuts against the conductive coating applied to the inner wall of the insulating carrier. The moonlight she includes a reflector, a diffuser opposite the reflector, and at least one external electrode camper disposed between the reflector and the diffuser. The outer electrode glory comprises a lamp tube and a lamp holder for accommodating the end of the lamp tube. Each lamp comprises a discharge > tube and an electrode attached to the outer surface of the end of the end of the discharge tube. The lamp holder includes an insulating carrier and an electrode lead wire disposed in the insulating carrier, the insulating carrier includes a receiving cavity, and the inner wall of the receiving cavity is coated with a conductive coating, and the end of the lamp tube is received therein The inner cavity of the receiving cavity is electrically connected to the conductive coating, and the electrode lead wire is electrically connected to the conductive coating. Compared with the prior art, the external electrode is electrically connected to the electrode lead wire by the conductive coating of the insulating carrier, which eliminates the need for a fresh wire on the outer electrode, and only needs to insert the leg tube into the insulating carrier, and the assembly is convenient. fast. I [Embodiment] Referring to FIG. 2, a perspective view of a first embodiment of the present backlight module is shown. The moonlight module 3 includes a diffusion sheet %, a plurality of external electrode fluorescent lamps 31 and a reflection sheet 32 in this order from top to bottom. Referring to Fig. 3, there is shown a perspective exploded view of the external electrode fluorescent lamp 31 shown in Fig. 2. The external electrode fluorescent lamp 31 includes a lamp tube 31 and two lamp holders 320 for receiving both ends of the lamp tube 310. The lamp tube 310 includes a discharge tube 312 and two outer electrodes 314 respectively attached to the outer surfaces of the discharge tube 312. The discharge tube 312 is a transparent glass tube which is sealed in the middle portion of the portion M 8 865 865 and is filled with a discharge gas surface coated with a fluorescent layer (not shown). Each of the lamp holders 320 includes an elastic insulating carrier and a nut 328. The outer surface of the elastic insulating carrier 322 is provided with a thread (not shown), and the thread of the insulating carrier 322 is fixed. Please refer to FIG. 4, and the insulating carrier 322 of FIG. 3 along the direction of the ^^ includes a holder and a portion 324 of the receiving portion. The receiving portion 323 is a cylindrical crucible and then includes a tube. Wall (not labeled) and one, ϋ: a groove (not labeled) with a _ distribution, the four grooves extending from the mouth to the bottom of the tube and not extending to the bottom of the tube, dividing the wall into four The same wall, the bottom of the cylinder is surrounded by a receiving cavity 325 for receiving the lamp tube and the two ends, and the receiving cavity 325 is inserted from the lamp tube to the bottom of the tube, and the diameter thereof is kept uniform. The shape of the 325 is matched with the shape of the two ends of the tube, and the inner wall of the receiving cavity 325 is coated with a conductive coating 326. The lead portion 324 is disposed at the bottom of the tube and includes a receiving hole (not labeled) for receiving The hole is in communication with the receiving cavity 325, and the receiving hole is provided with an electrode lead-out line 327, the electrode lead-out line 317 and the conductive coating 3 26 electrical connection. Please refer to Figure 5 together with the external electrode fluorescent lamp 31 shown in Figure 3. After assembling the three-dimensional, do not think about it. When assembling the external electrode fluorescent lamp 31, the external electrode fluorescent lamp The lamp holder 310 is inserted into the receiving cavity 325 of the elastic insulating carrier 322, and the nut 328 is screwed into the thread of the elastic insulating carrier 322. After being screwed, the elastic insulating carrier 322 is pressed and the lamp is pressed. The electrode 314 is tightly connected to the outer surface of the elastic insulating carrier 312, and the electrode lead 317 is electrically connected to the conductive coating 316 to form a 9 M332865 Compared with the prior art, the outer electrode 314 is electrically connected to the electrode lead 327 by the conductive coating 326 of the elastic insulating carrier 322, without the need to splicing the lamp line on the outer electrode 314, and the assembly thereof is convenient. Quickly, only the lamp tube 31〇 needs to be inserted into the elastic insulating carrier 322, and then the nut 328 can be screwed in, and the conductive coating 326 of the elastic insulating carrier-322 can be brought into contact with the electrode 3 i4 of the lamp tube 310 by elasticity. The contact is better. Please refer to Figure 6. An enlarged cross-sectional view of the elastic insulating carrier of the second embodiment of the backlight module is created. The elastic insulating carrier 422 is similar to the elastic insulating carrier of the first embodiment. The difference is that the diameter of the receiving impurity 425 is from the insertion end of the lamp tube. Increasingly. _ & : As mentioned above, this _ 符合 符合 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The person skilled in the case is assisted by the spirit of this creation. The decoration or change should be included in the scope of the following patent application. [Simplified illustration] The schematic diagram of the prior art backlight module is shown. 3: A perspective view of the first embodiment of the present backlight module. : Figure 2 is a schematic exploded view of the electrode fluorescent lamp. = Enlarged view of the cross section of the miv direction. Fig. 6 is a perspective view showing the assembly of the I external electrode fluorescent lamp. Large-scale creation backlight module Second embodiment of the elastic insulating carrier section i main component symbol description] external electrode fluorescent lamp 31 moonlight mode 3 reflection sheet 32 diffusion sheet 33 M332865 tube 310 discharge tube 312 external electrode 314 light Seat 320 elastic insulating carrier 322, 422 receiving portion 323 lead portion 324 receiving cavity 325, 425 conductive coating 326 electrode lead wire 327 nut 328 11

Claims (1)

M332865 IX. Patent application scope: 1. An external electrode fluorescent lamp, comprising: a lamp tube comprising a discharge tube and an electrode attached to an outer surface of the end portion of the discharge tube; • accommodating the end of the lamp tube Each of the lamp holders includes an insulating carrier and an electrode lead wire disposed in the insulating carrier, the inner wall of the insulating carrier is coated with a conductive coating, and the electrode lead wire is electrically connected to the conductive coating. The end of the tube is inserted into the insulating carrier such that the outer electrode of the tube abuts against the conductive coating applied to the inner wall of the insulating carrier. 2. The external electrode fluorescent lamp of claim 1, wherein the insulating carrier comprises a receiving portion, the receiving portion comprising a receiving cavity for receiving the end of the lamp, the conductive coating Applied to the inner wall of the receiving cavity. 3. The external electrode fluorescent lamp of claim 2, wherein the insulating carrier further comprises a lead portion connected to the receiving portion, the electrode lead wire being disposed in the lead portion. 4. The external electrode fluorescent lamp of claim 1, wherein the insulating carrier system is an elastic insulating carrier. 5. The external electrode fluorescent lamp of claim 3, wherein the lead-out portion includes a receiving hole that communicates with the receiving cavity, and the electrode lead wire is disposed in the receiving hole. 6. The external electrode fluorescent lamp of claim 2, wherein the diameter of the receiving cavity matches the diameter of the end of the lamp. 7. The external electrode fluorescent lamp of claim 6, wherein the diameter of the receiving cavity gradually increases inward from the insertion end of the lamp. 12 M332865 8. The diameter of the electrode chamber is the same inward from the insertion end of the lamp as described in item 6 of the patent application. The soil, wherein the accommodating space has an outer (four) surface, wherein the accommodating portion is provided with a groove corresponding to the % distribution, and the fourth portion divides the accommodating portion into four lobes. The stomach_tube inserts the inward extension ίΟ. As described in the scope of claim i, the electrode is calendered, and the outer surface of the insulating carrier is provided with '^^ for fixing. Θ I, text, the nut is screwed into the thread 11 · an external electrode fluorescent lamp, comprising: one of the outer surfaces of the end of the tube, comprising a discharge tube and attached to the outer electrode of the rose; ^ receiving The lamp holder 'in each of the lamp holders' includes a heat insulating carrier and an electrode lead wire disposed in the insulating carrier, the insulating carrier includes a receiving cavity, and the inner wall of the receiving cavity is coated with a conductive The coating has an end portion of the tube housed in the receiving cavity, and an outer electrode thereof is electrically connected to the conductive coating, and the electrode lead wire is electrically connected to the conductive coating. 12. The external electrode fluorescent lamp of claim 11, wherein the insulating carrier comprises a cylindrical receiving portion, the receiving portion comprises a cylindrical wall and a cylindrical bottom, the cylindrical wall and the bottom of the tube are enclosed The receiving cavity. The external electrode fluorescent lamp of claim 12, wherein the insulating carrier further comprises a lead portion disposed at the bottom of the tube, the electrode lead wire being disposed in the lead portion. 14. The external electrode fluorescent lamp of claim 13, wherein the lead-out portion comprises a receiving hole communicating with the receiving cavity, the electrode lead wire being disposed in the receiving hole. 13 M332865 15 The external electrode fluorescent lamp of claim 2, wherein the straight pinch of the receiving cavity matches the diameter of both ends of the lamp. The external electrode fluorescent lamp of claim 15, wherein the receiving cavity is uniform in diameter from one side of the tube wall to one side of the tube bottom. The external electrode fluorescent lamp of claim 15, wherein the receiving cavity is gradually increased in diameter from one side of the tube wall to the bottom side of the tube. 18. The external electrode fluorescent lamp of claim 5, wherein the wall of the cylinder is provided with four channels of symmetric distribution, the four grooves extending from the lateral to the bottom of the cylinder wall. The external electrode fluorescent lamp of claim 12, further comprising:: the outer surface of the insulating carrier is provided with a thread, the nut is screwed into the spiral fluorescent lamp, wherein the insulating carrier 20 • An electro-elastic system elastic insulating carrier as described in claim 1 of the patent application. 21· a backlight module, comprising: _, a plate ～ opposite to the reflector is diffused and placed on the _ plate and the louver, the external electrode luminescent lamp comprises: 汴 位 爱 爱 , , , , , , a discharge tube and an electrode attached to the outside of the diagnosis; a lamp holder on the outer surface of the end portion of the tube for accommodating the end of the lamp tube, and each of the electrodes is placed in the electrode of the 绝缘海 insulated carrier, and the 兮人 includes An insulating carrier and an electric coating layer, the electrode lead wire and the inner wall of the conductive coating edge carrier are coated and inserted into the insulating carrier, so that the second electrode of the lamp tube is connected, and the inner wall of the end portion of the lamp tube The conductive coating abuts. The backlight module of claim 21, wherein the insulating carrier includes a receiving portion, and the receiving portion includes a receiving portion for receiving the end of the lamp tube. The cavity is received, and the conductive coating is applied to the inner wall of the receiving cavity. The backlight module of claim 22, wherein the insulating carrier further comprises a lead portion connected to the receiving portion, the electrode lead line being disposed in the lead portion. The backlight module of claim 21, wherein the insulating carrier is an elastic insulating carrier. The backlight module of claim 23, wherein the lead-out portion includes a receiving hole that communicates with the receiving cavity, and the electrode lead-out wire is disposed in the receiving hole. 26. The backlight module of claim 22, wherein the diameter of the receiving cavity matches the diameter of the end of the tube. 27. The backlight module of claim 26, wherein the diameter of the receiving cavity gradually increases inward from the insertion end of the tube. 28. The backlight module of claim 26, wherein the diameter of the receiving cavity 10 is uniform inward from the insertion end of the lamp. 29. The backlight module of claim 22, wherein the receiving portion is provided with four symmetrically distributed grooves, the four grooves extending inward from the insertion end of the tube to divide the receiving portion into four valve. The backlight module of claim 21, wherein the external electrode fluorescent lamp further comprises a nut, the outer surface of the insulating carrier is provided with a thread, and the nut is screwed into the thread for fixing. 15 M332865 31. A backlight module comprising a reflector, a diffuser opposite to the reflector, and at least one external electrode fluorescent lamp disposed between the reflector and the diffuser, the external electrode fluorescent The lamp comprises: a lamp tube comprising a discharge tube and an outer electrode attached to an outer surface of the end of the discharge tube; a lamp holder for accommodating the end of the lamp tube, each lamp holder comprising an insulating carrier and An electrode lead wire disposed in the insulating carrier, the insulating carrier includes a receiving cavity, the inner wall of the receiving cavity is coated with a conductive coating, and the end of the lamp tube is received in the receiving cavity, and outside An electrode is electrically coupled to the electrically conductive coating, the electrode lead being electrically coupled to the electrically conductive coating. The backlight module of claim 31, wherein the insulating carrier comprises a cylindrical receiving portion, the receiving portion comprises a cylindrical wall and a cylindrical bottom, the cylindrical wall and the bottom of the tube enclosing the receiving Cavity. 33. The backlight module of claim 32, wherein the insulating carrier further comprises a lead portion disposed at the bottom of the tube, the electrode lead line being disposed in the lead portion. The backlight module of claim 33, wherein the lead-out portion includes a receiving hole that communicates with the receiving cavity, and the electrode lead-out wire is disposed in the receiving hole. The backlight module of claim 31, wherein the diameter of the receiving cavity matches the diameter of both ends of the tube. The backlight module of claim 35, wherein the receiving cavity has a diameter that is uniform from a side of the tube wall to a side of the bottom of the tube. The backlight module of claim 35, wherein the receiving cavity is gradually increased in diameter from one side of the tube wall to one side of the tube bottom. The backlight module of claim 32, wherein the cylinder wall is provided with four channels symmetrically distributed, the four grooves extending laterally from one of the cylinder walls to the bottom of the cylinder. 39. The backlight module of claim 31, wherein the external electrode fluorescent lamp further comprises a nut, the outer surface of the insulating carrier is provided with a thread, and the nut is screwed into the thread to be fixed. The backlight module of claim 31, wherein the insulating carrier is an elastic insulating carrier. 17