TWI339291B - Illuminant complex and back light unit incorporating the same - Google Patents

Description

1339291

达达编号号: TW2522PA IX. Description of the Invention: [Technical Field] The present invention relates to a light source assembly and a backlight module using the same, and particularly relates to a method for reducing the scratch of a lamp line and improving the heat dissipation effect The light source component and the backlight module using the same. [Prior Art] Liquid crystal displays (LCDs) have become the mainstream of the commercial market in recent years due to their small size, light weight, low power consumption, and no radiation pollution. The backlight module is used to provide a uniform light source in the liquid crystal display, so that the liquid crystal display panel presents a bright and rich picture, and the light source can be further divided into an edge light type backlight module and a direct type backlight module. Referring to Figure 1, a partial cross-sectional view of a conventional first backlight module is shown. The backlight module 1 includes a reflector cover 130, a lamp tube M, a line 15A, a first frame 110, a second frame 120, a light guide plate 160, a diffusion plate 17A, an optical film 180, and a reflection sheet 丨9. Hey. The reflector 13 and the light guide plate 丨6 are disposed between the first frame " and the second frame 120, and the reflector 130 receives one end of the light guide plate 16 with its opening. The lamp tube 140 is disposed in the reflector 130, so that the reflector 13 can reflect the light of the lamp to one side of the light guide plate 160. The reflection sheet 190 is disposed between the light guide plate 16 and the second frame 120, and reflects light from the light guide plate ι6 〇 to emit light from the top surface of the light guide plate 丨60. The diffuser plate 17 and the optical film 180 are sequentially disposed on the top surface of the light guide plate 16 to directly direct the light to the liquid crystal display panel (not shown) above the optical film 18A. At the corners of the first frame 1 and the second frame 12, two retic grooves are formed in the bend of the reflector 丨3〇 for accommodating the line 150 connecting one end of the tube 14〇. The inner groove of the reflector 13 is formed along the extending direction of the tube 14'. 1339291

Sanda number: TW2522PA In addition to the above-mentioned line configuration method, i ^ m /, there are still two types of lamp line configuration * for the industry. The respective drawings are explained below. First, please refer to Fig. 2, where A gives + = & h 八αία® ^ Jb /, ,, is not the edge of the conventional second type of backlight module. In the backlight module 2, the Han hood 230 and the light guide plate 160 are disposed between the first frame 210 and the second frame 22, and the reflection cover 230 receives the guide with its opening. end. Unlike the backlight module - the second frame 220 is downward (four) out of the carrying groove to accommodate the line 25A. The bearing groove of the second frame coffee is formed along the extension of the lamp tube 140, such that the line 250 is located between the second frame 220 and the reflector 230. That is, the continuation 9 P line 250 and the reflection cover 23 are located on the same side of the light guide plate 16A. Next, please refer to Figure 3, 1 for the dry redundancy, /, a is not the traditional third backlight module. J surface map. In the backlight module 4, the τ long-range mask 430 and the light guide plate 160 are disposed between the first frame 410 and the second frame 47n + „the wood 20, and the reflection cover 43 容纳 accommodates one end of the light guide plate 160 with the opening thereof. The difference is that the line 450 is disposed between the side plate of the reflector 43 0 , the side plate of the first dragged busy wood 41 , and the side plate of the second frame 220 . And formed along the extending direction of the lamp tube 140. Further, please refer to FIG. 4, which shows the part of the conventional fourth backlight module=face view. In the backlight module 5 wipes, the reflector 53〇 and the light guide plate _ are disposed between the first frame 5 10 and the second frame 牟9 〇g wood 520, and the reflector 53 容纳 accommodates one end of the light guide plate 160 with its opening. The group 100 is that the side plates of the reflector 53 are bent to form a groove, and the beans are used to configure the line 550. The groove of the side plate of the reflector 530 extends along the tube 14〇140. The direction is formed. The line 550 is located between the side plate of the reflective cover 530 and the side plate of the second frame 52 (). In view of their application components and source, 1,339,291 invention

- Dazhi pain * TW2522PA backlight module. The line is disposed between the top cover of the reflector cover of the reflector and the top plate of the frame of the first frame. Compared with the above-mentioned prior art, the present invention is less prone to scratching of the line. In addition, since the shape of the reflector is relatively complete, the contact area with the first frame is also increased, which greatly improves the heat dissipation efficiency of the backlight module. In addition, the circuit is disposed above the reflector and in contact with the design of the reflector, so that the distance between the reflector and the liquid crystal display panel is increased to provide better isolation. Especially under the limited thickness of the backlight module, the maximum distance between the liquid crystal display panel and the heat source of the lamp is maintained to effectively lower the temperature of the liquid crystal display panel. In accordance with the purpose of the present invention, a light source assembly is provided that includes a reflector, at least one tube, and at least one line. The lamp tube is disposed in the reflector. The line is connected to one end of the lamp and is disposed above the reflector and contacts the reflector. According to another object of the present invention, a backlight module is provided comprising a first frame, a second frame, a reflector, at least one tube, and at least one line. The second frame is disposed under the first frame, and the reflector is disposed between the first frame and the second frame. The lamp tube is disposed in the reflector. The line is connected to one end of the tube, disposed between the first frame and the reflector, and contacts the reflector. According to still another object of the present invention, a backlight module is provided, comprising a first frame, a second frame, a reflector, at least a lamp, and at least a line. The first frame has a frame top panel and a first frame side panel that is substantially perpendicular to the first frame side panel. The second frame is disposed below the first frame and has a frame bottom plate and - a second frame side panel. The frame top panel is substantially parallel to the frame bottom panel, the first frame side panel being substantially parallel to the second frame side panel. The reflector cover is disposed between the first frame and the first frame and has a reflector cover top plate, a reflector cover bottom plate, and a reflector cover side plate reflector cover top plate only. The upper frame is parallel to and separated from the reflector cover bottom plate, and the reflector cover top plate And the reflector bottom plate is perpendicular to the reflector side plates and adjacent to each other. The second frame side panel is located between the reflector side panel and the first frame side panel. The lamp system is arranged in the reflector 1339291

Sanda number: TW2522PA t line is connected to one end of the lamp official, and is disposed between the top cover of the reflector and the top plate of the frame and is in contact with the top plate of the reflector. According to still another object of the present invention, a backlight module is provided, including a frame, a μ-reflector, at least one lamp, and at least a line. The reflector is located in the frame, and the lamp is disposed in the reflector. The line is connected to one end of the tube and disposed on the upper side of the reflector and contacts the reflector. The above described objects, features, and advantages of the present invention will become more apparent and obvious. The following detailed description of the preferred embodiments and the accompanying drawings will be described in detail as follows: β [Embodiment] The present invention provides a backlight. In the module, the circuit of the lamp tube is disposed on the reflector and contacts the reflector, so that the line is not easily rubbed by the frame and is scratched. Moreover, since the contact area of the reflector and the frame is increased, the political heat effect of the backlight module is greatly improved. The following is a detailed description of a preferred embodiment, but the text and illustrations are for illustrative purposes only, and the scope of protection of the present invention is defined by the scope of the patent application, and the text and illustrations in the specification are not intended to be The scope of protection of the invention is limited. Please refer to FIG. 5, which illustrates a lamp pipeline according to a preferred embodiment of the present invention: a schematic diagram of a backlight module disposed above the reflector. The backlight module 500 includes at least a light source assembly 305 and a frame 306. The frame 306 is, for example, a first frame 3 1 〇 and a second frame 32 〇 for sandwiching the light source assembly 3 〇 5 up and down. The second frame 320 is disposed under the first frame 3丨〇. The light source assembly 3〇5 includes a reflector cover 330, at least one lamp tube 340, and at least one line 350. Here, a three-lamp 34 〇 and a three-line 350 are taken as an example for illustration. The reflector cover 33 is disposed between the first frame 3A and the second frame strip 320, and the lamp tube 340 is disposed in the reflector cover 330. The line 350 is connected to one end of the lamp tube 340 and disposed between the first frame 3 1 〇 and the reflection cover 33 ,, and 1339291

Sanda number: TW2522PA Contact reflector 330. The lamp 340 is, for example, a cold cathode fluorescent lamp (CCFL). In order to more specifically describe the position of the line 350, the configuration of the reflector 330 and the frame 306 will be described in detail below. The reflector cover 330 has a reflector cover top plate 332, a reflector cover bottom plate 334, and a reflector cover side plate 336. The reflector side panel 336 is coupled to the reflector top plate 332 and the reflector cover bottom plate 334. The reflector top plate 332 is substantially parallel to the reflector cover bottom plate 334, and the reflector cover top plate 332 and the reflector cover bottom plate 334 are substantially perpendicular to the reflector cover side plate 336. That is to say, the reflector 330 has a slightly U-shaped structure lying flat. The line 350 is disposed above the reflector top plate 332 and contacts the reflector top plate 332. In addition, the first frame system 310 has a frame top plate 314 and a first frame side plate 3 12 ′. The second frame 320 has a frame bottom plate 324 and a second frame side plate 322. The frame top plates 3 14 are substantially parallel to the frame bottom plate 324 and spaced apart from one another. The first frame side panels 3 12 are substantially parallel to the second frame side panels 322 and abut each other. The frame top plate 3 14 is substantially perpendicular to the first frame side panel 3 12 . The second frame side panel 322 is located between the reflector side panel 336 and the first frame side panel 312. More specifically, the line 35 is placed between the reflector top plate 332 of the reflector 330 and the frame top plate 314 of the first frame 310 and contacts the reflector roof 332. In addition to the above components, the backlight module 300 further includes a light guide plate 36, a diffusion plate 370, an optical film 38A, and a reflection sheet 39A. The light guide plate 36 is disposed between the first frame and the first frame 320, and the light tube 340 is disposed adjacent to one side of the light guide plate 360. The reflection sheet 39 is disposed between one of the bottom surfaces of the light guide plate 36 and the second frame 320, and the line 35() and the reflection sheet fan are located on two sides of the light guide plate 36. The diffusion plate 37 is disposed on one of the top surfaces of the light guide plate 36, and the line 35 and the expansion plate 370 are located on two sides of the light guide plate 36. The optical film (10) is disposed on the diffusion plate 370. A liquid crystal display panel can be further disposed on the diaphragm 38. (The side surface, the top surface and the bottom surface of the light guide plate 360 are respectively - the light entrance surface, 1339291

Sanda number: TW2522PA light surface and non-light surface. Therefore, the reflection cover 330 can reflect the light of the bulb 34 to the side of the light guide plate 360. The reflection sheet 390 reflects the light to the light guide plate 36, and causes the light to be directed to the diffusion plate 37 and the optical plate 38A via the top surface of the light guide plate 360, thereby homogenizing the light source and supplying the light source to the liquid crystal display panel. The light source assembly and the backlight module using the same are disposed between the reflector cover top plate of the reflector and the frame top plate of the first frame. Compared with the prior art, the embodiment is not easy to scratch the line. . Also due to the shape of the reflector, complete with the frame

The body contact area is increased to improve heat dissipation efficiency. Moreover, the line is disposed above the reflector so that the distance between the reflector and the liquid crystal display panel is increased to provide better isolation. Especially under the limited thickness of the backlight module, the liquid crystal display panel maintains the maximum distance between the heat source of the lamp and the temperature of the liquid crystal display panel. Further, the present embodiment does not need to change the shape of the reflector to set the circuit, so that the reflection is good for manufacturing, and the heat dissipation effect is good, and the circuit is not damaged. It is not necessary to lower the height of the second frame, and the structural strength of the backlight module is effectively maintained. In conclusion, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the present invention. Any subject matter of ordinary skill in the art to which the invention pertains can be made without departing from the spirit and scope of the invention, and the scope of the invention is defined by the scope of the appended claims.马平° 1339291

Sanda number: TW2522PA [Simple description of the drawing] Figure 1 shows a partial cross-sectional view of a conventional backlight module; Figure 2 shows a partial cross-sectional view of a conventional second backlight module; 3 is a partial cross-sectional view showing a conventional third backlight module; FIG. 4 is a partial cross-sectional view showing a conventional fourth backlight module; and FIG. 5 is not a preferred embodiment of the present invention. Partial section of the backlight module of the embodiment

[Main component symbol description] 100, 200, 300, 400, 500: backlight module 110, 210 '310, 410, 510: first frame 120, 220, 320, 420, 520: second frame 130, 230, 330 430, 530: reflectors 140, 340 · · lamps 150, 250, 350, 450, 550: lines 160, 360: light guide plates 170, 370: diffuser plates 180, 380: optical films 190, 390: reflective sheets 305: light source assembly 3 12: first frame side plate 314: frame top plate 322: second frame side plate 324: frame bottom plate 332: reflector cover top plate 334: reflector cover plate 1329291

TW2522PA: reflector side panel 336

Claims (1)

1339291 _ · Λ Β - January, 100 丨〇曰Revised replacement page, patent application scope: 1 · A backlight module comprising: a first frame having a frame top plate 'the top plate of the frame has a convex portion; a first frame is disposed under the first frame. A reflector is disposed between the first frame and the second frame, the reflector has a reflector cover, a reflector cover, and a reflector cover The reflector side panel is connected to the shingling top plate (4) anti-fresh silk, the spoiler cover bottom plate is longer than the reflector cover top plate, and the k-frame material protrudes from the reflective cover position to be adjacent to the frame top plate 'the convex portion faces the opposite Extending in a direction in which the end portion protrudes to form a space with the top plate of the frame, the end portion and the top plate of the reflector; ^ at least one lamp is disposed in the reflector; and to the y line, and the lamp officer One end is connected, and the circuit is disposed in the space and contacts the top plate of the reflector, and the line is not in contact with the first frame. 2. The backlight module of claim 2, wherein the reflector top plate is substantially parallel to the reflector floor, and the reflector roof and the reflector floor are substantially perpendicular to the relatively four (four) plates. The line is set up (4) above the top of the reflector. 3. The backlight module of claim 2, wherein the first frame further has a - frame-side panel, the second frame has a frame bottom plate and a second frame side plate, the frame top plate is f Parallel to the frame bottom plate, the first frame side plate is substantially parallel to the second frame side plate and adjacent to each other, the frame top plate system is perpendicular to the first frame side plate, the second frame side plate is located at the reflector cover side plate and the Between the side frames of the first frame. The backlight module of claim 3, wherein the end portion is a part of the side frame of the second frame. 5. The backlight module of claim 1, further comprising a light guide 13 January 10, 10, a correction replacement page is disposed between the first frame and the second frame, the light tube The device is disposed adjacent to one side of the light guide plate. The backlight module of claim 5, further comprising a reflective sheet disposed between the light guide plate and the second frame, the reflective sheet and the line being located on two sides of the light guide plate. 7. The backlight module of claim 6, further comprising a diffusion plate disposed on the light guide plate, the diffusion plate and the line being located on the same side of the light guide plate. 8. The backlight module of claim 7, further comprising an optical film disposed on the diffuser. The backlight module of claim 5, wherein the light guide plate is disposed on the reflector floor. 10. The backlight module of claim 1, wherein the tube is a cold cathode fluorescent tube. 11. A backlight module, comprising: a first frame having a frame top plate and a first frame side plate, the frame top plate being substantially perpendicular to the first frame side plate and having a convex portion; a first frame, Provided below the first frame, having a frame bottom plate and a first frame side plate, the frame top plate being substantially parallel to the frame bottom plate, the first frame side plate being substantially parallel to the second frame side plate and A reflector is disposed between the first frame and the second frame, and has a reflector cover top plate, a reflector cover bottom plate and a reflector cover side plate, the reflector cover side plate connecting the reflector cover top plate and the reflection a cover bottom plate, the reflector cover bottom plate is longer than the reflector cover top plate, the reflector cover top plate is substantially parallel to the reflector cover bottom plate, the reflector cover top plate and the reflector cover bottom plate are perpendicular to the reflector cover side plate, and the second frame side plate is located Between the reflector side panel and the first frame side panel, one end of the second frame side panel is abruptly recognized by the ι〇1 January ι〇日 revision replacement page. a plate adjacent to the top plate of the frame, the convex portion extending toward the opposite direction to form a space with the top plate of the frame, the end portion and the top of the reflector; the y lamp is disposed on the reflector And at least one line connected to one end of the tube, the line being disposed in the space 'and contacting the reflector cover & the line is not in contact with the frame top plate β it as claimed in the scope of the patent The backlight module further includes a guide The stop is disposed between the first frame and the second frame, and the lamp tube is disposed adjacent to one side of the light guide plate. The backlight module of claim 12, further comprising a backlight disposed between the light guide plate and the bottom plate of the frame, wherein the reflective sheet and the line are located on two sides of the light guide plate. ^ Κ 巾 请 专利 专利 专利 专利 第 第 第 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光 背光The backlight module includes a photonic film disposed on the diffusion plate. The backlight module of claim 12, wherein the light guide plate is disposed on the reflector floor. The backlight module of claim 11, wherein the tube is a cold cathode fluorescent tube. 15