TWM284012U - Backlight module structure for LEDs arranged on a big surface - Google Patents

Description

M284012

[Technical field to which the new type belongs] The present invention relates to a structure of a large-area light-emitting polar backlight module that does not produce bright spots, and is lighter and thinner. It is suitable for flat display, liquid crystal display or similar structures. • [Previous technology] Backlight module is one of the key components of liquid crystal display products. With the improvement and improvement of display manufacturing technology, liquid crystal displays (Liquid Crystal Display, LCD) with small size and low radiation have been developed in recent years. Has gradually replaced the traditional cathode ray tube display. ^ The light module is located under the display panel and has a light source and an expansion plate to provide a uniformly dispersed light source. The light source penetrates the display panel and forms an image by controlling the pixel electrodes on the display panel. Depending on where the light source is located, the light module can be divided into a direct-lit backlight module generated directly below the display panel, or The light source is an edge-lit backlight module near the side of the display panel. ^ Mingshen 8 Figure 'is a cross-sectional view of the conventional verHcal-type backlight module' The backlight module A is located below a display panel B, which includes a diffusion plate B 1, a reflection plate b 2 and the plurality of lamp tubes b ΐ 仃 are arranged in the valleys to C defined by the diffusion plate B 1 and the metal reflection plate B 2. The reflecting plate β 2 is used to reflect upward the light generated by the lamp tube 3 to increase the light utilization rate. A diffusing plate B i further scatters the reflected light into uniformly dispersed light. However, the heat generated by the lamp during operation cannot be dissipated and cause accumulation, which further shortens the service life of the lamp.

Page 5 M284012 __ 銮 号-^^ — 目 你 不 _ 4. Creation instructions (2) show that the light shielding sheet 3, light guide plate 4, reflective sheet 6, diffusion sheet 5, circuit board 1 and plural numbers It consists of two light emitting diodes (LEDs) 2. Light-emitting diodes 2 are provided on both sides of the light guide plate 4 as a light source, and the light emitted by the light-emitting diodes 2 can pass through the light-transmitting light guide plate 4 and be reflected by the reflective sheet 6 and diffused from above. 5 emission, in order to avoid the occurrence of bright bands at the light source of the light-emitting diode 2, it is covered with a light shielding sheet 3 to fix the circuit substrate 1 of the light-emitting diode 2 at the same time, and prevent light from passing out from the other side, As a result, the overall brightness of the backlight module is uneven. Such a light-emitting source is arranged on the side of the light guide plate 4, which is easy to be caused by a poor incidence angle of the light source during use. In addition, when used in a large area, a large number of light-emitting diodes 2 will be used, and the amount of power loss will be considerable. Furthermore, since the light sources are separately arranged on both sides of the whole backlight module, the middle and middle parts of the whole backlight module cannot reach the required brightness. In view of this, the author ’s professional light module structure ’enables the light that generates light to generate high temperature, or an edge-light type light-emitting diode, and devotes itself to thinking and designing to provide creative motives for research and creation. Providing a large-area light-emitting diode source does not cause uneven brightness as in the conventional direct-type lamp production, but is used by the consumer. [New Content] The main purpose of this creation. Those who have a large-area light-emitting diode backlight module structure. Face-to-face! The secondary purpose is to provide a light-weight and thinner large-capacity mono-polar backlight module structure. Big 13 It 2 Another purpose ’is to provide-a kind of environmental protection and more energy saving ^ Large area of light ^ 莫 组 姑 ， 专, |

Page 6 M284012 Case No. 94212250 Revisioning and creation instructions (3) In order to achieve this, the light pole body and the light reflection plate can be made to reduce costs and in the detailed description of this creation [Embodiment > Please refer to plate 4 0, a plate 2 0 2 0 and optics (Diffusion complex reflection plate on the light guide plate 2 on the light source 5 0 light plate 2 0 The structure is the same. The outer edge is provided with a guide, silver, tin, and a bibliographic source film. The brightness is saved, and it is advanced.] Figure 1 The lower part of the optical panel and the film she 11 0, the second polar body, this creation It is composed of a light source and an optical film. A plurality of light-emitting two sheets capable of emitting 360-degree omnidirectional light are arranged above the light source, and one of the optical film is provided at the bottom of the light source; thereby using a small amount of light-emitting two A backlight module with extremely uniform, lighter, thinner, low failure rate, and energy. His characteristics and specific embodiments can be understood in the following steps with the accompanying drawings. 'The backlight module of this creation is mainly equipped with a Display mask sheet 1 0, a light The source 50, of which 10, the optical et / Dif fuser), and the diffuser film, the upper side of the other side, that is, the light source's container, 40 of them. '3 photos' The light source 50 is composed of a plurality of 360-degree hairs, and the light guide plate (the light guide plate is provided above the light source 50 in the Light Guide, and the light guide plate 10 includes a diffusion film and a prism sheet) A prism plate and one of the reflecting plates are provided with a radiating plate (R ef 1 ect 〇) 1 1 and then 50 are provided on the reflecting plate 1 1 and the optical film 10 is provided with a photodiode. Two brackets, crystal

A bracket is used to illustrate the nickel and alloy φ + light-transmitting layer 55 composed of the substance 5 2. The two brackets and the bracket are composed of a circuit board 5 1 and the conductive substance 5 2 is selected from any group of gold. The two stent phases

M284012 PM 9421225η J. Creation instructions (4) Oppose the placement of the 5 pieces of the chip 53 and the positive and negative plates (substrate) of the chip 5 5 5 -5 3 and one. This bit is light-emitting #omnidirectional 0, guide, so the line is passed, and the width is reduced by 0 and the bottom is placed on the guide, which means that 3 and 2 and the stent line 5 2 3 connected to the stent are placed opposite to each other. The brackets are set on the same side, and the bottom of the chip 5 3 is transparent, and the conductive material 5 2 is connected through two connection lines 5 4, and finally a light-transmitting layer portion (the connection line 5 4 is combined) Parts), the wafer is overmolded, so that the wafer 5 3 is suspended. The 0 system is made into a suitable body connected to the light source 5 and the light emitting diode 2 is a light emitting board 2 0. After the electricity, each light is emitted. The light of light is the light plate 2. The source of the light-shaped light diode is atomized and reflected. The diffused display panel is formed above the size. When the size is connected, it is a reflective plate. The amount of light emitted by the light diode is the same. The optical film evenly expands the circuit of 40. When the dimension circuit 1 cooperates with the light that can be emitted, these surface light sources are radiated, and then the sheet is diffused by 10, and the size is'. Please refer to Figure 4 for the full number. Optical film 1 is not 360 degrees for the same size The elliptical light can cover each other, so the large light can directly enter the light guide plate 2 'and the periphery of the light emitting diode is introduced into the light guide plate 20 (including the diffusion film and the cymbal) to condense the light to improve the brightness. Figures 5 and 6 'It is another application example of the light source 50. A bracket is mainly provided. The bracket is composed of a circuit board 51, and a perforation 5 1 1 is provided on the left and right sides of the bottom edge of the circuit board 5 1. 1 1 is available for tin soldering, and the side of the circuit board 5 1 is provided with a conductive substance 5 2 on the opposite two sides of the front end surface, and the two conductive substances 5 2 are insulated, and the chip 5 3 is inverted. , Suspended above the circuit board 51, at this time Ι1ΗΙΙ1 page 8

M284012 Case number 94212250

3. Creation instructions (5), the electrodes of the chip 5 3 and the two conductive substances 5 2 of the circuit board 5 1 are placed on the same side, 'connecting the chip 5 3 and the two conductive substances 5 2 through two connecting wires 5 4' and finally A light transmissive substance 5 5 is used to partially overmold the chip 5 3, the two connecting wires 5 4 and the upper part of the bracket to complete the assembly. '' 'The plurality of light-emitting diodes are made into a two-dimensional circuit, as shown in Figure 7.' When the circuit is conductive, each light-emitting diode can emit an oval light of 36〇 ^, and each The light emitted by the light-emitting diodes can have a large area, and the light directly enters the light guide plate 20 to atomize the linear light into a uniform surface light source, while the light at the periphery and bottom of the light-emitting diodes is 1 reflection plate 1 1 reflection 're-introduced into the light guide plate 2 0, the optical film 1 0 (including diffusion film and diaphragm) placed above the light guide plate 2 0, which diffuses and diffuses light uniformly, and condenses the light To increase brightness. ^. Furthermore, the power source used in the light source of this creation can be used by converting six currents to direct current (AC / DC) by using a transformer. There is no need to install a DC to AC transformer on the circuit board, which can save costs. If one of the light-emitting diodes in the light source 5 3 is damaged, because the other light-emitting diodes emit light at 360 degrees in all directions, when a single light-emitting diode is damaged, it is more " 'not obvious and It will not have much impact; in addition, because the 360-degree light emitted by each light-emitting diode covers a wider and more uniform range, two light sources 1 are placed on the surface, so the light guide plate 2 of the backlight module 2 〇 No need to set. It can be known from the above that the device of this creation has the following practical advantages: 1. The light-emitting diode is used as the light source, and the light-emitting diode is directly set under the display panel to form a direct-type backlight module, and ^ Feather is a side-light backlight module when the light-emitting diode is used as the light source. $

M284012 correction

Case No. 94212250 [Creation Note (6) 2. Effectively improving the conventional direct-lit backlight module by using a lamp as a lamp, which will cause high temperature loss; At the same time, it also improves the conventional side-light operation when the light-emitting diode is used as the light source. The incident degree is not large, and the intermediate brightness cannot be uniform. ^ The amount of use is: 3, the light-emitting diodes that emit light in all directions are used as the light source: the system light: the lack of uniform brightness of the intermediate brightness, and because each luminous = area Larger and wider, so the backlight module: the light guide plate can be set without any. ≪ 4 Since each light emitting diode can emit 36 degrees and cover each other 2 can greatly reduce the amount of light emitting diodes , Reducing the power consumption t and the low failure rate of the light emitting diode itself, which further makes the backlight module composed of lighter and thinner, more effective in reducing costs and energy. The above mentioned are only for the purpose of this creation. In the preferred embodiment, when it cannot be used to limit the creation of this work,% + μm, you can only say that the 'environment that can be changed and modified by those skilled in the industry' should be considered In order not to deviate from the essence of this creation Capacity. I 2 Ϊ, the present writing can indeed achieve the intended purpose of creation, providing a proposed new modular structure with two, undoubtedly practical value law,

M284012 Case No. 94212250 _Ά Revision Modified simple illustration [Simplified illustration of the figure] The first figure is a sectional view of the creative embodiment. Figure 2 is a sectional view of the creative light source. Figure 3 is a top view of the creative light source. Figure 4 is a three-dimensional light-emitting diagram of the creative light source. Figure 5 is another application example of the creative light source. Fig. 6 is a sectional view of Fig. 5. Fig. 7 is a light emission diagram of the light source in Fig. 5. FIG. 8 is a sectional view of a conventional direct type backlight module. • Figure 9 is an exploded view of the components of a conventional edge-lit backlight module. Key component symbols 1 0, optical film 1 1, reflection plate 2 0, light guide plate 40, display panel 50, light source 1, and perforation 3 , Wafer 5, light-transmitting layer 5 1, circuit board 5 2, conductive material 5 4, connecting line A, backlight module B, display panel B 2, reflecting plate

B B diffuser

Page 11 W M284012 Amendment No. 94212250 Brief description of drawings C, Room D, Diffusion sheet 1, Circuit board 3, Light-shielding sheet 5, Diffusion sheet D1, Optical condenser film 2, Light-emitting diode 4, Light guide plate 6, reflective sheet 第 12 页

Claims (1)

M284012-Case No. 94212250 _i Modified on May 5th, Patent Application Scope 1. A large-area light-emitting diode backlight module structure is composed of a light source and an optical film, wherein the optical film is arranged on the light source, It is characterized in that: the light source is composed of a plurality of light-emitting diodes capable of emitting 360-degree omnidirectional light; the light-emitting diodes include a conductive bracket and at least one light-emitting chip; The negative electrode is set on the top surface, and the bottom substrate needs to be transparent. At least two connecting lines for connecting the light-emitting chip and the bracket, and a light-transmitting layer that covers the above components. 2 Make the chip be suspended only by the covering of light-transmitting substance, so that the chip can emit light in 360 degrees in all directions; by doing so, the backlight module is lighter and thinner, and there is no generation of puncta. More energy-saving. The large-area light-emitting diode backlight module structure described in item 1 of the scope of patent application, wherein the number of the conductive brackets is set to two, which is formed by a circuit board covered with a conductive substance, and the two brackets Set up for the appearance. 3. The structure of the large-area light-emitting diode backlight module described in item χ of the scope of the patent application: wherein the conductive bracket is composed of a circuit board, and a conductive substance is provided on two opposite sides of the front surface of the circuit board. The two > conductive materials are insulated between them. The structure of the large-area light-emitting diode backlight module described in item 4, 2 or 3 of the patent application, wherein the conductive substance is any one selected from gold, silver, tin, chromium, nickel, and alloys. A group of people. 5. The structure of the large-area light-emitting diode backlight module described in item i of the patent application scope, wherein the optical film includes a diffusion film and a cymbal M284012 _ Case No. 94212250 Range and plural reflectors. 6. The large-area light-emitting two module structure described in item 1 of the scope of patent application, wherein the optical film and the light source are light-shieldable plates. • 7. Large area hair as described in item 5 or 6 of the scope of patent application. Backlight module structure, where the diffuser film, cymbal and one are located above the light guide plate, and the other reflection plate is located on the light source polar body The backlight is provided with a bottom of a light-guiding diode reflecting plate system P. 14 a