TWI224705B - Liquid crystal display device - Google Patents

Abstract

A liquid crystal display device includes a liquid crystal panel, a backlight module, a frame, a metal plate and a fixing plate. The backlight module illuminates the liquid crystal panel. The frame is disposed outside the backlight module for receiving the backlight module. The metal plate is disposed between the frame and the backlight module. The fixing plate is disposed on the frame for fixing a system circuit board.

Description

1224705

Case No. 92104131 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a back frame for a liquid crystal display module = a kind of back frame with a replaceable metal fixing plate, and j = type and specifications can be applied LCD monitor. [Previous technology] With the advancement of electronic technology, especially in daily life, the demand for light, thin, short, and low power consumption displays is increasing: ll (^ ruArysta {Display; , Reset light, and non-continuous talk 丨 1 War _ points, often used in this type of electronic products: its, V is the excellent cathode ray tube display, etc. In the even to gradually replace the traditional example , US Patent No. 380,998 issued to Arai on April 30, 2002 # ^ ta-1 (lcd Dev.ce

Having A Back Ught ", which is incorporated herein as a support frame for a liquid crystal display. 1 ^, r ίΓ 考 Ϊ1, which depicts a conventional liquid crystal display device 10. The stateless clothing 10 mainly includes a liquid crystal Display panel 12 and a backlight =, and 20. The liquid crystal display panel 12 includes two printed circuit boards (pcB) i4, 16 for controlling and driving through a Tape Carrier package (TCP) 1 8 ' The signal is transmitted to the LCD panel. 2. The backlight module 20 mainly includes a light source (not shown), a reflective film ", a light guide plate 26, and an optical film 28 for uniformly emitting light from the light source. It is directed toward the liquid crystal display panel 12. The backlight module 20 generally has a back frame 32 for receiving the light source, the reflection

Page 5 1224705 Case No. 92104131 V. Description of the invention (2) Transmissive film 24, the light guide plate 26 1 0 In addition, it includes a casing 30, group 20, and the liquid crystal display In addition, the liquid crystal display 32 and the backlight module The entire rear surface of the device can be used. Bolt holes or projections are required for subsequent processing. However, the aluminum plate 22 2 'is used to fix the system electricity or change the material and weight of the aluminum plate 22. In addition, if it is solved by other methods, so in the above case, the liquid fixes the system circuit board. In view of this, there is a need for the above problems. [Summary of the Invention] One of the objects of the present invention is to fix the thickness of the fixing plate 'to achieve the above-mentioned object, including a liquid crystal display panel, and the optical film 28. Generally made of metal, the panel 12. The device device 10 also provides an aluminum layer between the reflective film 24 to provide heat dissipation and prevention. In the process, this liquid crystal display column (Boss) is used to fix the thin film so that there is no circuit board. Alternatively, if the material is added, the liquid crystal can be cooled or the electromagnetic wave dry crystal display device 1 can be increased. The liquid crystal display device 10 must be provided with a liquid crystal display and the liquid crystal display device must be fixed. The back-correction of the liquid crystal display device is used to accommodate the backlight template 22, and the aluminum plate 2 of the phase device device 10 arranged on the back and covering the liquid crystal display to prevent electromagnetic interference is provided. The other system circuit method provides sufficient strength. The thickness of the aluminum plate 22 and the thickness disturbance of the display device 10 can be used to remove the aluminum plate 22. In order to provide a suitable device, it is necessary to provide a liquid crystal display device, which is used to solve the device, and has a corresponding system circuit board. Crystal display device, frame, metal

1224705 Case No. 92104131

5. Description of the invention (3) This and a fixed plate. The backlight module illuminates the liquid crystal display panel. / Month [is configured on the outside of the moonlight module to accommodate the backlight module. Xi 2 film is placed between the back frame and the backlight module. The fixing plate is a workman; the μ frame is used to fix a system circuit board. The liquid crystal display device according to the present invention has a fixing plate, and the fixing plate may be the size and thickness of the unit. Circuit = fixed on the fixed plate without substantially increasing the liquid crystal display. In order to make the above and other objects, features, and advantages of the present invention more obvious, the preferred embodiments of the present invention are given below and cooperate with the accompanying drawings. As shown below. [Embodiment] Referring again to FIG. 2, a liquid crystal display device 110 according to an embodiment of the present invention is shown. The liquid crystal display device 110 mainly includes a liquid crystal display panel 112 and a backlight module 120. The liquid crystal display panel 112 includes two printed circuit boards (PCBs) 14 and 16 for transmitting control and driving signals to the liquid crystal display panel through a tape carrier package (1 ^ 1) 6 Carrier Package (TCP) 118. 11 2. The backlight module 120 mainly includes a light source (not shown), a reflective film 124, a light guide plate 126, and an optical film 28, which are used to uniformly emit light emitted from the light source to the liquid crystal display panel. 1 1 2. The backlight module 120 generally has a back frame 1 32 for receiving the light source, the reflective film 124, the light guide plate 126, and the optical film 128. The liquid crystal display device 110 also includes a housing 130, which is generally made of metal and used for

00636.ptc Page 7 1224705 ---- Case No. 92104131 Month Day Amendment V. Description of the invention (4) The backlight module 1 2 0 and the LCD panel 丨 2 are accommodated. In addition, the liquid crystal display device 丨 丨 〇 another metal sheet 丨 2 2 and a fixing plate 150 ° are provided between the back frame 132 and the reflective film 1 24 of the backlight module 120, And cover the entire back surface of the liquid crystal display device 丨 丨 〇 to provide heat dissipation and prevent electromagnetic interference. The metal sheet 2 2 is generally made of metal, preferably aluminum, and has a thickness of about 0.5 mm or less, such as between 0.3 and 0.5 mm. Considering Figs. 3a and 3b again, the fixing plate 150 is arranged inside the back frame 1 32, and is embedded in the groove 1 40 of the back frame 1 32. The groove 1 4 0 further has a positioning pin 1 4 2 ′ for positioning the fixing plate 150 in a correct position. Those skilled in the art will know that 'if the groove 14o is substantially larger than the fixing plate 150, and the position of the positioning pin 1 42 can be changed, it can be adjusted by adjusting the position of the positioning pin 4 2' Positioning the fixing plate 150 at a desired position can also make the fixing plate 150 have the function of adjusting the position. The fixing board 丨 50 has a plurality of studs (Boss) 1 5 2 for fixing external system circuit board 153, such as an analog / digital board (a / D Board) or Inverter. For example, the studs 1 52 can have a bolt shape and pass through the system circuit board 1 5 3. The system circuit board 153 may include a plurality of nuts 154 for locking the post 52, so as to fix the system circuit board 153. Referring to FIG. 3c, of course, the protruding post 1 5 2 may also be provided with a threaded hole 1 5 1 for fixing the external system circuit board 1 5 3. For example, the system circuit board 153 may include a plurality of bolts 1 56 that pass through the system circuit board 153 and are used to lock the threaded holes 15 1 to fix the system circuit board 153. Alternatively, as shown in Figs. 4a and 4b, the fixing plate 150 is fixed to the outer side of the back frame 132. The back frame 132 further has a groove 145 and a positioning pin 147 for

00636.ptc Page 8 ^ 1 ^ 92104131 V. Description of the invention (5) " Month Modification The housing 150 is accommodated, and Jiang ^ 1 50 can be located in the correct position by any known door lintel. On the fixing plate, for example, the language and right 疋 technology are firmly fixed to the back frame 1 32 I tape and so on. -σ ..., fusion or ultrasonic bonding, adhesion, bolts, double-sided | 4> Idea 'The back of the fixing plate 15 and, if necessary, W restoration of the entire liquid crystal display device 1 1 0 made of metal, and preferably: Ho shape. The fixing plate is generally thicker than 150 Å and is made. The fixing plate 150 may have a relative reference to FIG. 5 / whose degree of care is Λ at 0.5 mm. Display device 21〇. The liquid: Ermingzhi-another embodiment of the liquid crystal | display device 11 (), and the device 21 is substantially similar to the liquid crystal on the liquid crystal display device 丨 do not use similar drawing numbers. In contrast, the metal sheet is disposed on the back frame 232: the jjf indicator device 210 does not provide any metal space. ^ The reflective film 2 of the first module 220 is 24. Although the present invention has been previously described in the present invention, anyone familiar with this example reveals that it is not intended to limit the scope of the present invention as defined by the appended patent application Dangfu 00636.ptc Page 9 1224705 _ Case No. 92104131_ Year Month Date __ Brief Description of the Drawings [Simplified Description of the Drawings] Figure 1 is a three-dimensional perspective development schematic view of one of the prior art liquid crystal display devices. FIG. 2 is a three-dimensional perspective development diagram of a liquid crystal display device according to an embodiment of the present invention. FIG. 3a is a top plan view of the back frame and the fixing plate of the liquid crystal display device shown in FIG. 2. FIG. Fig. 3b is a schematic cross-sectional view of the back frame and the fixing plate of the liquid crystal display device shown in Fig. 2. Fig. 3c is a schematic cross-sectional view of a back frame and a fixing plate of the liquid crystal display device shown in Fig. 2. FIG. 4a is a top plan view of the back frame and the fixing plate of the liquid crystal display device shown in FIG. 2. FIG. Fig. 4b is a schematic cross-sectional view of a back frame and a fixing plate of the liquid crystal display device shown in Fig. 2. FIG. 5 is a three-dimensional perspective development diagram of a liquid crystal display device according to another embodiment of the present invention. Description of the drawing number: 10 liquid crystal display device 12 liquid crystal display panel 14 printed circuit board 16 printed circuit board 18 roll tape carrier package 20 back light module group 22 aluminum plate 24 reflective film 26 light guide plate 28 optical thin film

00636.ptc Page 10 1224705 _Case No. 92104131_ Year, month and day correction diagram brief description 30 case 32 back frame 110 liquid crystal display device 112 liquid crystal display panel 114 printed circuit board 116 printed circuit board 118 tape carrier package 120 backlight module 122 Metal sheet 124 Reflective film 126 Light guide plate 128 Optical film 130 Housing 132 Back frame 140 Groove 142 Positioning pin 145 Groove 147 Positioning pin 150 Fixing plate 151 Threaded hole 152 Stud 153 System circuit board 154 Nut 156 Bolt 210 LCD display device

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Claims (1)

1224705 _Case No. 92104131_Amendment of the Year and Month_ 6. Application for Patent Scope 1. A liquid crystal display device includes: a liquid crystal display panel; a backlight module to illuminate the liquid crystal display panel; a back frame configured at An outer side of the backlight module to accommodate the backlight module; a metal sheet disposed between the back frame and the backlight module; and a fixing plate disposed on the back frame for fixing an external circuit board . 2. The liquid crystal display device according to item 1 of the patent application scope, wherein the back frame further has a groove for accommodating the fixing plate. 3. The liquid crystal display device according to item 1 of the scope of patent application, wherein the back frame has positioning pins for positioning the fixing plate in the correct position. 4. The liquid crystal display device according to item 1 of the scope of patent application, wherein the fixing plate is disposed between the back frame and the backlight module. 5. The liquid crystal display device according to item 1 of the scope of patent application, wherein the fixing plate is arranged on the outer side of the back frame. 6. The liquid crystal display device according to item 1 of the scope of patent application, wherein the fixing piece further has a protruding post for fixing the external circuit board. 7. The liquid crystal display device according to item 1 of the scope of patent application, wherein the fixed 00636.ptc Page 12 1224705 _Case No. 92104131_ Year Month Amendment _ 6. Scope of Patent Application The film also has threaded holes for fixing the external circuit board. 8. The liquid crystal display device according to item 1 of the scope of patent application, wherein the fixing plate is made of metal. 9. The liquid crystal display device according to item 8 of the scope of patent application, wherein the fixing plate is made of aluminum. 10. The liquid crystal display device according to item 1 of the scope of patent application, wherein the metal sheet is made of metal. 11. The liquid crystal display device according to item 1 of the scope of patent application, wherein the thickness of the metal sheet is between 0.5 mm and 0.3 mm. 12. A liquid crystal display device, comprising: a liquid crystal display panel, a backlight module for illuminating the liquid crystal display panel; a back frame arranged outside the backlight module to accommodate the backlight module And a fixing board configured on the back frame for fixing an external circuit board. 13. The liquid crystal display device according to item 12 of the scope of patent application, wherein the back frame further has a groove for accommodating the fixing plate. 00636.ptc Page 13 1224705 _Case No. 92104131_ Year Month_i ±± _ VI. Patent application scope 1 4. Liquid crystal display device according to item 12 of patent application scope, wherein the back frame has positioning pins, It is used to position the fixing plate in the correct position. 15. The liquid crystal display device according to item 12 of the scope of patent application, wherein the fixed plate is disposed between the back frame and the backlight module. 16. The liquid crystal display device according to item 12 of the scope of patent application, wherein the fixing plate is arranged outside the back frame. 17. The liquid crystal display device according to item 12 of the scope of patent application, wherein the fixing piece further has a protruding post for fixing the external circuit board. 18. The liquid crystal display device according to item 12 of the scope of patent application, wherein the fixing piece further has a screw hole for fixing the external circuit board. 19. The liquid crystal display device according to item 12 of the scope of patent application, wherein the fixing plate is made of metal. 20. The liquid crystal display device according to item 19 of the patent application scope, wherein the fixing plate is made by Ming. 00636.ptc Page 14