CN101373287B - LCD device - Google Patents
LCD device Download PDFInfo
- Publication number
- CN101373287B CN101373287B CN 200710146814 CN200710146814A CN101373287B CN 101373287 B CN101373287 B CN 101373287B CN 200710146814 CN200710146814 CN 200710146814 CN 200710146814 A CN200710146814 A CN 200710146814A CN 101373287 B CN101373287 B CN 101373287B
- Authority
- CN
- China
- Prior art keywords
- circuit board
- pcb
- printed circuit
- access area
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The invention discloses an LCD (liquid-crystal display) at least including a backlight module, a light source group, a rubber frame, an LCD panel module and a PCB (printed-circuit board). The backlight module at least includes a metal back plate, wherein the metal back plate at least includes a bottom plate and a side plate; the light source group is arranged in the metal back plate; the rubber frame is arranged on the outer edge of the metal back plate and attached to the outer side surface of the side plate of the metal back plate, wherein the rubber frame at least include a spring pressing piece; the LCD panel module is arranged on the backlight module; and the PCB is electrically connected with the LCD panel module and arranged on the outer side of the backlight module, wherein the PCB at least includes a grounding area, and the spring pressing piece correspondingly presses the PCB for enabling the grounding area to be in direct contact with the metal back plate.
Description
Technical field
The present invention relates to a kind of flat display apparatus, and be particularly related to a kind of LCD (LCD).
Background technology
The design of LCD MODULE now (LCD Module) is towards the trend development of high-res.Under the situation of pursuing high-res, cause printed circuit board (PCB) (Printed Circuit Board; PCB) layout is more and more complicated, thereby module is to Electromagnetic Interference (Electromagnetic Interference; The requirement of protection EMI) is also harsh day by day.
Generally speaking, to obtain good ground connection be a kind of mode that can effectively solve Electromagnetic Interference to module.Grounding technology commonly used at present all additionally uses extra element, for example screw, metal clips or metallic conduction cloth (Gasket) etc., be used as the media that electrically conducts between printed circuit board (PCB) and preceding frame or the backboard, make printed circuit board (PCB) see through backboard and/or preceding frame and ground connection thus.
Yet, because present grounding technology all need use extra conductive member, therefore can cause the cost of module to increase, particularly the price of metal clips and metallic conduction cloth is not low.In addition, though it is few to utilize the mode cost of lock screw to increase, but because screw need lock on printed circuit board (PCB), therefore can account for the great arrangement space of printed circuit board (PCB), therefore such grounding technology is severely limited in application, perhaps must increase printed circuit board area and remedy screw and lock the arrangement space that is additionally occupied, can cause the increase of circuit board cost thus.
Summary of the invention
Therefore, purpose of the present invention is providing a kind of LCD exactly, utilize the plastic material rubber-like characteristic of glue frame, and the external form of design glue frame has the part that suppresses of elastic effect with formation, and utilize this elasticity of suppressing part that printed circuit board (PCB) is exerted pressure, so that the preceding frame of the access area of printed circuit board (PCB) and conduction or back of the body frame fluid-tight engagement, and then make printed circuit board (PCB) reach the ground connection effect really.
Another object of the present invention is that a kind of LCD is being provided, and sees through and can suppress printed circuit board (PCB) to the exterior design of glue frame, and make printed circuit board (PCB) reach effective grounding, need not to use in addition additional member media with being used as leading of printed circuit board (PCB).Therefore, not only can reduce the assembling complexity of LCD MODULE, effectively improve packaging efficiency, also can reduce cost, improve the utilization ratio of printed circuit board (PCB).
Another purpose of the present invention is that a kind of LCD is being provided, structure by frame before designing and backboard, printed circuit board (PCB) can closely be seized on both sides by the arms between former frame and the backboard, the access area of printed circuit board (PCB) can directly be contacted with preceding frame or backboard really, and form the good earth effect.
A further object of the present invention is that a kind of LCD is being provided, see through the structure of design backboard and Circuit Board cover, make on the opposed area of backboard and Circuit Board cover and all have outstanding structure, thereby the access area of printed circuit board (PCB) can reach reliable with the outstanding structure of backboard or Circuit Board cover and contact, and makes printed circuit board (PCB) and the external world form ground connection reliably.
A further object of the present invention is that a kind of LCD is being provided, and its printed circuit board (PCB) can form good earth with the external world, therefore can effectively solve the problem of Electromagnetic Interference.
According to above-mentioned purpose of the present invention, a kind of LCD is proposed, comprise at least: backlight module, comprise metal backing at least, wherein this metal backing comprises base plate and the side plate that is around in the edge of base plate at least; The light source group is located in the metal backing; And the glue frame, be located on the outer rim of metal backing, and fit with the lateral surface of the side plate of metal backing, wherein the glue frame comprises at least and suppresses part; Liquid crystal panel module is located on the backlight module; And printed circuit board (PCB), electrically connect with liquid crystal panel module, and be located on the outside of backlight module, wherein printed circuit board (PCB) comprises the access area at least, and the glue frame suppress the corresponding compressing of part printed circuit board (PCB) so that the access area directly contacts with metal backing.
According to one embodiment of the present invention, the above-mentioned part that suppresses comprises hook formation.
According to purpose of the present invention, a kind of LCD is proposed, comprise at least: backlight module, comprise backboard at least, wherein this backboard comprises base plate and the side plate that is around in the edge of this base plate at least; The light source group is located in the backboard; And the glue frame, be located on the outer rim of backboard, and extend and descend along the lateral surface of the side plate of backboard, wherein the glue frame comprises at least and suppresses part; Liquid crystal panel module is located on the backlight module; Printed circuit board (PCB) electrically connects with liquid crystal panel module, and is located on the outside of backlight module, and wherein printed circuit board (PCB) comprises the access area at least, and the part correspondence of suppressing of glue frame is oppressed printed circuit board (PCB); And metal front frame, be located on the outer rim of liquid crystal panel module and the periphery of printed circuit board (PCB), glue frame and backboard, wherein metal front frame comprises that at least a convex structure is convexly set in the medial surface of metal front frame and corresponding with the access area, and suppress part printed circuit board (PCB) is suppressed towards metal front frame, so that the access area directly contacts with the convex structure of metal front frame.
According to one embodiment of the present invention, the above-mentioned part that suppresses comprises first and second portion at least, first extends between backboard and the printed circuit board (PCB), and second portion is convexly set on the side of first's front end towards the direction of printed circuit board (PCB), and second portion compressing printed circuit board (PCB) is with access area and convex structural engagement.
According to purpose of the present invention, other proposes a kind of LCD, comprises at least: backlight module comprises at least: metal backing, comprise base plate and the side plate that is around in the edge of base plate at least, and its latus inframedium is provided with jut; The light source group is located in the metal backing; And the glue frame, be located on the outer rim of metal backing, and extend and descend along the lateral surface of the side plate of metal backing; Liquid crystal panel module is located on the backlight module; Printed circuit board (PCB) electrically connects with liquid crystal panel module, and is located on the outside of backlight module and with jut and engages, and wherein printed circuit board (PCB) comprises the access area at least; And metal front frame, be located on the outer rim of liquid crystal panel module and the periphery of printed circuit board (PCB), glue frame and metal backing, wherein metal front frame comprises the convex structure at least, be convexly set in the medial surface of metal front frame, the position of convex structure is corresponding to jut and access area, and printed circuit board (PCB) is folded between jut and the convex structure, so that convex structure or jut directly contact with the access area.
According to purpose of the present invention, a kind of LCD is also proposed, comprise at least: backlight module comprises at least: metal backing, comprise base plate and the side plate that is around in the edge of base plate at least, wherein base plate is provided with jut; The light source group is located in the metal backing; And the glue frame, be located on the outer rim of metal backing; Liquid crystal panel module is located on the backlight module; Printed circuit board (PCB) electrically connects with liquid crystal panel module, and is located on the lateral surface of base plate of backboard and with jut and engages, and wherein printed circuit board (PCB) comprises the access area at least; And circuit board metal housing, cover covers printed circuit board (PCB), wherein the circuit board metal housing comprises the convex structure at least, the position of convex structure is corresponding to jut and access area, and printed circuit board (PCB) is folded between jut and the convex structure, so that the access area directly contacts with jut or convex structure.
Utilize glue frame material rubber-like speciality, pass through the design to the shape and structure of glue frame again, and formation has the part of spring, because such part that suppresses has the ability of filling up the gap, therefore the gap that can prevent the variation because of assembling or part production tolerance to cause, and then the access area of printed circuit board (PCB) closely can be pressed be attached to and lead the place.In addition, in addition can be by the structure collocation of design backboard and preceding frame or the structure collocation of backboard and Circuit Board cover, reach the effect of firm clipping printed circuit board (PCB), and then make the access area of printed circuit board (PCB) be able to reliably to reach ground connection with the external world via backboard, preceding frame or Circuit Board cover.Therefore, use the application's invention, can additionally not increase under the part prerequisite, make printed circuit board (PCB) obtain good ground connection effect, further reach the purpose of improving Electromagnetic Interference.
Description of drawings
Fig. 1 is the sectional axonometric drawing that illustrates according to a kind of LCD of one embodiment of the present invention.
Fig. 2 is the amplification profile that illustrates according to the periphery of a kind of LCD of one embodiment of the present invention.
Fig. 3 is the amplification profile that illustrates according to the periphery of a kind of LCD of another preferred embodiment of the present invention.
Fig. 4 is the part amplification profile that suppresses part and printed circuit board (PCB) that illustrates according to the glue frame of a kind of LCD of the another preferred embodiment of the present invention.
Fig. 5 illustrates the part amplification profile that suppresses part and printed circuit board (PCB) of the glue frame of a kind of LCD of a preferred embodiment again according to the present invention.
Fig. 6 illustrates the amplification profile of the periphery of a kind of LCD of a preferred embodiment again according to the present invention.
Fig. 7 A illustrates the amplification profile of the periphery of a kind of LCD of a preferred embodiment again according to the present invention.
Fig. 7 B is the vertical view at the back side that illustrates the LCD of Fig. 7 A.
Description of reference numerals
100: LCD 100a: LCD
102: backlight module 102a: backlight module
104: light source group 106: backboard
106a: backboard 106b: backboard
108: liquid crystal panel module 110: optic film set
112: base plate 114: side plate
114a: side plate 114b: side plate
116: preceding frame 116a: preceding frame
116b: preceding frame 118: convex structure
118a: convex structure 120: printed circuit board (PCB)
120a: printed circuit board (PCB) 120b: printed circuit board (PCB)
120c: printed circuit board (PCB) 120d: printed circuit board (PCB)
120e: printed circuit board (PCB) 122: glue frame
122a: glue frame 122b: glue frame
122c: glue frame 124: amplifier section
126: suppress part 126a: suppress part
126b: suppress part 126c: suppress part
128: the 128a of first: hook formation
128b: the 128c of first: first
130: second portion 130b: second portion
130c: second portion 132: access area
132a: access area 132b: access area
132c: access area 132d: access area
132e: access area 134: reflector plate
136: flexible circuit board 138: jut
140: light guide plate 142: light source reflecting housing
144: Circuit Board cover 146: the convex structure
148: jut
Embodiment
The present invention discloses a kind of LCD, can not use under the additional parts, makes printed circuit board (PCB) obtain good ground connection effect, effectively improves the problem of Electromagnetic Interference.In order to make narration of the present invention more detailed and complete, can be with reference to the diagram of following description and cooperation Fig. 1 to Fig. 7 B.
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 is the sectional axonometric drawing that illustrates according to a kind of LCD of one embodiment of the present invention, and Fig. 2 then is the amplification profile of periphery of the LCD that illustrates Fig. 1.LCD 100 mainly comprises backlight module 102, liquid crystal panel module 108, preceding frame 116 and printed circuit board (PCB) 120.Backlight module 102 mainly comprises backboard 106, light source group 104 and glue frame 122, and its dorsulum 106 is mainly by base plate 112 and side plate 114, and side plate 114 is around in the edge of base plate 112 and forms disk-like structure.The material of backboard 106 can be plastic cement or metal, preferably adopts metal.Light source group 104 is arranged on the inside of backboard 106, and is positioned on the base plate 112.The inside of backboard 106 more can be according to actual state, when for example the material of backboard 106 is not had reflectivity, reflector plate 134 optionally is set between backboard 106 and light source group 104, so that the light reflection function to be provided, and then with the direction reflection of light source group 104 toward the light of backboards 106 towards display surface.
Shown in the local amplifier section 124 of LCD 100, glue frame 122 is located on the outer rim of backboard 106, and extends and descend along the lateral surface of the side plate 114 of backboard 106.In the present invention, glue frame 122 comprises at least and suppresses part 126, wherein suppresses part 126 and glue frame 122 preferred integrated structures.Glue frame 122 can for example be the polycarbonate tough and tensile and rubber-like materials of material such as (PC) with the material that suppresses part 126.In addition, also can be according to the product actual demand, and backlight module 102 more optionally arranges optic film set 110 on whole back plate 106, improves the usefulness of light source and the uniformity coefficient that improves light source thus, and wherein the outer rim of optic film set 110 is folded between glue frame 122 and the backboard 106.108 of liquid crystal panel module are arranged on the backlight module 102, and wherein the outer rim of liquid crystal panel module 108 is pressed on the glue frame 122.120 outsides of being located at backlight module 102 of printed circuit board (PCB), and with the part glue frame 122 engage, wherein printed circuit board (PCB) 120 can see through flexible circuit board and (not be illustrated among Fig. 2, but flexible circuit board 136 as shown in Figure 3) electrically connect with liquid crystal panel module 108, this flexible circuit board can for example be flip-chip film soft board (COF), coil type film circuit board (TAB) or flexible printed wiring board (FPC).Printed circuit board (PCB) 120 comprises access area 132 at least, and wherein access area 132 is provided with metal level, because the material of this metal level can for example be copper (Cu), so access area 132 is called dew copper district again.
On the other hand, 116 of preceding frames are located on the outer rim of liquid crystal panel module 108, and be located in backlight module 102 around, and cover the side of backlight module 102 printed circuit board (PCB) 120, glue frame 122, with the periphery of the side plate 114 of backboard 106, as shown in Figure 2.The material of preceding frame 116 generally can be plastic cement or metal, yet in the present embodiment, the material of preceding frame 116 is metal, reaches the effect of ground connection via preceding frame 116 in order to the access area 132 of printed circuit board (PCB) 120.In the present embodiment, preceding frame 116 comprises convex structure 118 at least, and wherein convex structure 118 can utilize for example impact briquetting mode by frame 116 before the stamped metal inwards outward, and forms the structure of the medial surface that is convexly set in metal front frame 116.The position of convex structure 118 is corresponding and relative with the access area 132 of printed circuit board (PCB) 120, in order to both contacts.The part 126 that suppresses of glue frame 122 comprises first 128 and second portion 130, wherein first 128 extends between backboard 106 and the printed circuit board (PCB) 120, and second portion 130 is convexly set on the side of first's 128 front ends towards the direction of printed circuit board (PCB) 120, and the position of second portion 130 is corresponding to the access area 132 of printed circuit board (PCB) 120.
Because printed circuit board (PCB) 120 is between the convex structure 118 of preceding frame 116 and suppressing between the part 126 of glue frame 122, therefore be placed on when suppressing on the part 126 when printed circuit board (PCB) 120, printed circuit board (PCB) 120 can be pressed to contact and be suppressed the second portion 130 that part 126 protrudes, thereby suppress the bounce that part 126 can apply towards printed circuit board (PCB) 120, and then with the access area 132 of printed circuit board (PCB) 120 forward the direction of frame 116 suppress.At this moment, because the position of the convex structure 118 of preceding frame 116 is relative with access area 132, the bounce of therefore suppressing part 126 will force the access area 132 of printed circuit board (PCB) 120 directly to contact with the convex structure 118 of metal front frame 116, thus, printed circuit board (PCB) 120 and metal front frame 116 are electrically conducted, as shown in Figure 2.Because the access area 132 of printed circuit board (PCB) 120 can contact really with metal front frame 116, so printed circuit board (PCB) 120 can obtain good ground connection effect, and then can effectively prevent Electromagnetic Interference.Therefore, use the present invention not using extra part and not take under the space of printed circuit board (PCB) 120, make printed circuit board (PCB) 120 obtain the good earth effect really and effectively.
More noticeablely be, though the part 126 that suppresses of the glue frame 122 of this embodiment is class L font structure, however the suppressing part and also can comprise hook formation of glue frame of the present invention, as shown in Figure 3, therefore scope of the present invention is not limited to above-described embodiment.
In the aforementioned embodiment, the access area of printed circuit board (PCB) directly contact with metal front frame and reach lead ground effect, yet the access area of printed circuit board (PCB) also can directly contact to carry out ground connection with backboard.Please refer to Fig. 3, it is the amplification profile that illustrates according to the periphery of a kind of LCD of another preferred embodiment of the present invention.In this embodiment, the lateral surface of the side plate 114a of glue frame 122a and backboard 106a is fitted, and printed circuit board (PCB) 120a is located on the lateral surface of side plate 114a of backboard 106a, and engages with the glue frame 122a of part and the backboard 106a of part.Be provided with flexible circuit board 136 between printed circuit board (PCB) 120a and the liquid crystal panel module 108, wherein the both sides of flexible circuit board 136 engage with liquid crystal panel module 108 with printed circuit board (PCB) 120a respectively, to electrically connect printed circuit board (PCB) 120a and liquid crystal panel module 108.Flexible circuit board 136 can for example be flip-chip film soft board (COF), coil type film circuit board (TAB) or flexible printed wiring board (FPC).The access area 132a of printed circuit board (PCB) 120a is relative with the lateral surface of the side plate 114a of backboard 106a.Therefore, for the access area 132a that makes printed circuit board (PCB) 120a can reach the effect of electrically leading ground, the material of the backboard 106a of present embodiment is metal.In addition, glue frame 122a suppresses part 126a and can comprise hook formation 128a, and the position of this hook formation 128a is corresponding with the access area 132a of printed circuit board (PCB) 120a.Because glue frame 122a is made up of tough and tensile and rubber-like material, add and suppress the exterior design that part 126a has hook formation 128a, therefore the hook formation 128a that suppresses part 126a can prop up and be compressed on the access area 132a of printed circuit board (PCB) 120a, access area 132a directly and is closely contacted with the side plate 114a of metal backing 106a, and reach the effect of ground connection.
In the present embodiment, though before the side plate of frame 116a do not have a convex structure, and only be plate-like structure, yet the side plate of the preceding frame 116a of present embodiment also can be general with the preceding frame 116 of last embodiment, direction towards printed circuit board (PCB) 120a convexes with the convex structure, and the position of this convex structure is corresponding with the position of the access area 132a of printed circuit board (PCB) 120a, with compacting glue frame 122a suppress part 126a, engage access area 132a and the metal backing 106a of printed circuit board (PCB) 120a thus more closely.
In addition, the part that suppresses that part 126a can also class L font that suppresses of the glue frame 122a of present embodiment replaces, glue frame 122b as shown in Figure 4 or glue frame 122c shown in Figure 5, wherein the discrepancy of the device of the embodiment of Fig. 4 and Fig. 5 only is the exterior design of suppressing part of glue frame, and the glue frame suppress part all between preceding frame and printed circuit board (PCB).In Fig. 4, the part 126b that suppresses of glue frame 122b comprises the 128b of first and second portion 130b, wherein the 128b of first extends between printed circuit board (PCB) 120b and the preceding frame 116a (as shown in Figure 3), and second portion 130b is convexly set on the side of the 128b of first front end towards the direction of printed circuit board (PCB) 120b, and the position of second portion 130b is corresponding to the access area 132b of printed circuit board (PCB) 120b.And in Fig. 5, glue frame 122c to suppress part 126c similar to the external form of suppressing part 126b of the glue frame 122b of Fig. 4, suppress part 126c and comprise the 128c of first and second portion 130c equally, and the 128c of first extends between printed circuit board (PCB) 120c and the preceding frame 116a (as shown in Figure 3), second portion 130c is convexly set on the side of the 128c of first front end towards the direction of printed circuit board (PCB) 120c, and the position of second portion 130c is corresponding to the access area 132c of printed circuit board (PCB) 120c.Toughness and the elasticity of the material of part 126b and 126c itself is suppressed in utilization, the elastic force pressure that respectively printed circuit board (PCB) 120b and 120c is applied towards the direction of metal backing 106a (as shown in Figure 3), and then respectively the access area 132b of printed circuit board (PCB) 120b and the access area 132c of printed circuit board (PCB) 120c are suppressed also contacting metal backboard 106a, and reach the purpose of ground connection.
Please refer to Fig. 6, it is to illustrate the amplification profile of the periphery of a kind of LCD of a preferred embodiment again according to the present invention.In this embodiment, the lateral surface of the side plate 114b of glue frame 122a and backboard 106b is fitted, and printed circuit board (PCB) 120d is located on the lateral surface of side plate 114b of backboard 106b, and engages with the glue frame 122a of part, also engages with the jut 138 of the side plate 114b of backboard 106b simultaneously.Be provided with flexible circuit board 136 between printed circuit board (PCB) 120d and the liquid crystal panel module 108, wherein the both sides of flexible circuit board 136 engage with liquid crystal panel module 108 with printed circuit board (PCB) 120d respectively, to electrically connect printed circuit board (PCB) 120d and liquid crystal panel module 108.Flexible circuit board 136 can for example be flip-chip film soft board (COF), coil type film circuit board (TAB) or flexible printed wiring board (FPC).Before frame 116b be located on the outer rim of liquid crystal panel module 108, and be located in backlight module 102 around, and cover the outside of backlight module 102 printed circuit board (PCB) 120d, glue frame 122a, with the periphery of the side plate 114b of backboard 106b.In the present embodiment, the material of preceding frame 116b is metal, reaches the effect of ground connection via preceding frame 116b in order to the access area 132d of printed circuit board (PCB) 120d, and wherein access area 132d is provided with metal level, and the material of this metal level can for example be copper.In the present embodiment, preceding frame 116b comprises convex structure 118a at least, and wherein convex structure 118a can utilize for example impact briquetting mode by frame 116b before the stamped metal inwards outward, and forms the structure of the medial surface that is convexly set in metal front frame 116b.The position of convex structure 118a is corresponding and relative with the access area 132d of printed circuit board (PCB) 120d, in order to both contacts.In addition, the position of the convex structure 118a of the metal front frame 116b preferably jut 138 with the side plate 114b of backboard 106b is corresponding, printed circuit board (PCB) 120d can be the tight clamping of convex structure 118a of jut 138 with the metal front frame 116b of side plate 114b thus, access area 132d directly and is closely contacted with the convex structure 118a of metal front frame 116b, and reach the effect of ground connection.
In another embodiment, the position of the access area 132d of printed circuit board (PCB) 120d can change the medial surface that is arranged at printed circuit board (PCB) 120d into, thereby it is corresponding and relative with the jut 138 of the side plate 114b of backboard 106b to make that access area 132d becomes, in order to contacting of access area 132d and jut 138.In addition, the material of backboard 106b is metal, reaches the effect of ground connection via backboard 106b in order to the access area 132d of printed circuit board (PCB) 120d.And, the position of the convex structure 118a of the metal front frame 116b preferably jut 138 with the side plate 114b of backboard 106b is corresponding, thus, printed circuit board (PCB) 120d can be the tight clamping of convex structure 118a of jut 138 with the metal front frame 116b of side plate 114b, access area 132d directly and is closely contacted with the jut 138 of side plate 114b, and reach the effect of ground connection.
Please refer to Fig. 7 A, it is to illustrate the amplification profile of the periphery of a kind of LCD of a preferred embodiment again according to the present invention.This LCD 100a has side incident type backlight module 102a, and wherein backlight module 102a comprises that also light guide plate 140 is located in the backboard 106 and between optical diaphragm group 110 and reflector plate 134.In addition, light source group 104 is located between the medial surface of side plate 114 of the lateral surface of light guide plate 104 and backboard 106, wherein backlight module 102a also is provided with light source reflecting housing 142, so that light source group 104 is coated between the lateral surface of light source reflecting housing 142 and light guide plate 104, and then the light reflected back light guide plate 140 that light source group 104 can be sent towards the outside.In this embodiment, the lateral surface of the side plate 114 of glue frame 122a and backboard 106 is fitted, and printed circuit board (PCB) 120e is located on the lateral surface of base plate 112 of backboard 106, and engages with the jut 148 of base plate 112.Be provided with flexible circuit board 136 between printed circuit board (PCB) 120e and the liquid crystal panel module 108, wherein the both sides of flexible circuit board 136 engage with liquid crystal panel module 108 with printed circuit board (PCB) 120e respectively, to electrically connect printed circuit board (PCB) 120e and liquid crystal panel module 108.Flexible circuit board 136 can for example be flip-chip film soft board (COF), coil type film circuit board (TAB) or flexible printed wiring board (FPC).In the present embodiment, the material of backboard 106 is metal, reaches the effect of ground connection via backboard 106 in order to the access area 132e of printed circuit board (PCB) 120e, and wherein access area 132e is provided with metal level, and the material of this metal level can for example be copper.Before frame 116a be located on the outer rim of liquid crystal panel module 108, and be located in backlight module 102a around, and cover the outside of backlight module 102a glue frame 122a, with the periphery of the side plate 114 of backboard 106.The material of preceding frame 116a generally can be plastic cement or metal.
In the present embodiment, backlight module 102a also comprises Circuit Board cover 144 at least, covers and protects printed circuit board (PCB) 120e with cover, shown in Fig. 7 A and Fig. 7 B.Circuit Board cover 144 comprises convex structure 146 at least, and wherein convex structure 146 can utilize for example impact briquetting mode by die-stamped circuit plate outer cover 144 inwards outward, and forms the structure of the medial surface that is convexly set in Circuit Board cover 144.The position of convex structure 146 is corresponding with the access area 132e of printed circuit board (PCB) 120e, in order to compacting printed circuit board (PCB) 120e, the access area 132e of printed circuit board (PCB) 120e is engaged with the base plate 112 of backboard 106.Thus, the access area 132e of printed circuit board (PCB) 120e directly and is closely contacted with the base plate 112 of backboard 106, and reach the effect of ground connection.
In another embodiment, the position of the access area 132e of printed circuit board (PCB) 120e can change the downside that is arranged at printed circuit board (PCB) 120e into, thereby it is corresponding and relative with the convex structure 146 of Circuit Board cover 144 to make that access area 132e becomes, in order to contacting of access area 132e and convex structure 146.In addition, the material of Circuit Board cover 144 is metal, can effectively isolate the electromagnetic interference (EMI) effect, reaches the effect of ground connection via Circuit Board cover 144 in order to the access area 132e of printed circuit board (PCB) 120e.And, the position of the convex structure 146 of the Circuit Board cover 144 preferably jut 148 with the base plate 112 of backboard 106 is corresponding, thus, printed circuit board (PCB) 120e can be the convex structure 146 tight clampings of jut 148 with the Circuit Board cover 144 of base plate 112, access area 132e directly and is closely contacted with the convex structure 146 of Circuit Board cover 144, and reach the effect of ground connection.
By the invention described above preferred embodiment as can be known, an advantage of the present invention is exactly because LCD of the present invention can only be utilized the plastic material rubber-like characteristic of glue frame, and the external form that is designed the glue frame has the part that suppresses of elastic effect with formation, can utilize this elasticity of suppressing part that printed circuit board (PCB) is exerted pressure thus, frame or back of the body frame fluid-tight engagement before the access area that forces printed circuit board (PCB) and the conduction, and then make printed circuit board (PCB) reach the effect of good earth.
By the invention described above preferred embodiment as can be known, another advantage of the present invention is exactly because LCD of the present invention only makes it reach effective grounding by suppressing printed circuit board (PCB) to the exterior design of glue frame, need not to use the extra ground media of leading fully.Therefore, not only can reduce cost of parts, more can reduce the assembling complexity of LCD, effectively improve packaging efficiency, improve the utilization ratio of printed circuit board (PCB), further reduce the production cost of LCD.
By the invention described above preferred embodiment as can be known, another advantage of the present invention is exactly because LCD of the present invention is only by designing the structure of preceding frame and backboard, the access area of printed circuit board (PCB) is directly contacted with preceding frame or backboard really, further obtain the good earth effect.
By the invention described above preferred embodiment as can be known, an advantage more of the present invention is exactly all to have outstanding structure because LCD of the present invention can be only makes on the opposed area of backboard and Circuit Board cover by structural design, therefore the access area of printed circuit board (PCB) can reach stable with backboard or Circuit Board cover by crossing these outstanding structures and contact, and then makes printed circuit board (PCB) and the reliable ground connection of extraneous formation.
By the invention described above preferred embodiment as can be known, an advantage more of the present invention is exactly because the printed circuit board (PCB) of LCD of the present invention can form good earth with the external world, therefore can effectively solve the problem of Electromagnetic Interference.
Though the present invention discloses as above with a preferred embodiment; so it is not in order to limit the present invention; any those of ordinary skill in this technical field; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking appended the claim person of defining.
Claims (11)
1. LCD comprises at least:
Backlight module comprises at least:
Metal backing, wherein this metal backing comprises base plate and the side plate that is around in the edge of this base plate at least;
The light source group is located in this metal backing; And
The glue frame is located on the outer rim of this metal backing, and fits with the lateral surface of this side plate of this metal backing, and wherein this glue frame comprises at least and suppresses part;
Liquid crystal panel module is located on this backlight module; And
Printed circuit board (PCB), electrically connect with this liquid crystal panel module, and be located on the lateral surface of this side plate of this metal backing and with this glue frame and be combined, wherein this printed circuit board (PCB) comprises the access area at least, this access area is relative with this side plate of this metal backing, and this of this glue frame suppresses this printed circuit board (PCB) of the corresponding compressing of part, so that this access area directly contacts with this metal backing.
2. LCD as claimed in claim 1, wherein this access area is provided with metal level.
3. LCD as claimed in claim 1, also comprise preceding frame at least, be located on the outer rim of this liquid crystal panel module and the periphery of this printed circuit board (PCB), this glue frame and this metal backing, wherein should comprise the convex structure at least by preceding frame, be convexly set in the medial surface of this preceding frame, and this suppresses part towards the corresponding pressing of this printed circuit board (PCB).
4. LCD as claimed in claim 1, also comprise preceding frame at least, be located on the outer rim of this liquid crystal panel module and the periphery of this printed circuit board (PCB), this glue frame and this metal backing, wherein this suppresses part and comprises first and second portion at least, this first extends between this preceding frame and this printed circuit board (PCB), and this second portion is convexly set on the side of this first's front end towards the direction of this printed circuit board (PCB), and this second portion is oppressed this printed circuit board (PCB).
5. LCD as claimed in claim 1 also comprises flexible circuit board at least, is bonded between this liquid crystal panel module and this printed circuit board (PCB).
6. LCD comprises at least:
Backlight module comprises at least:
Metal backing, wherein this backboard comprises base plate and the side plate that is around in the edge of this base plate at least;
The light source group is located in this backboard; And
The glue frame is located on the outer rim of this backboard, and extends and descend along the lateral surface of this side plate of this backboard, and wherein this glue frame comprises at least and suppresses part, and wherein this suppresses the structure that part and this glue frame are formed in one;
Liquid crystal panel module is located on this backlight module;
Printed circuit board (PCB) electrically connects with this liquid crystal panel module, and is located on the outside of this backlight module, and wherein this printed circuit board (PCB) comprises the access area at least, and this of this glue frame suppresses this printed circuit board (PCB) of the corresponding compressing of part; And
Metal front frame, be located on the outer rim of this liquid crystal panel module and the periphery of this printed circuit board (PCB), this glue frame and this backboard, wherein this metal front frame comprises the convex structure at least, be convexly set in the medial surface of this metal front frame and corresponding with this access area, and this suppresses part this printed circuit board (PCB) is suppressed towards this metal front frame, so that this access area directly contacts with this convex structure of this metal front frame.
7. LCD as claimed in claim 6, wherein this access area is provided with metal level.
8. LCD as claimed in claim 6, wherein this suppresses part and comprises first and second portion at least, this first extends between this backboard and this printed circuit board (PCB), and this second portion is convexly set on the side of this first's front end towards the direction of this printed circuit board (PCB), and this second portion is oppressed this printed circuit board (PCB), with this access area and this convex structural engagement.
9. LCD comprises at least:
Backlight module comprises at least:
Metal backing comprises base plate and the side plate that is around in the edge of this base plate at least, and wherein this side plate is provided with jut;
The light source group is located in this metal backing; And
The glue frame is located on the outer rim of this metal backing, and extends and descend along the lateral surface of this side plate of this metal backing;
Liquid crystal panel module is located on this backlight module;
Printed circuit board (PCB) electrically connects with this liquid crystal panel module, and is located on the outside of this backlight module and with this jut and engages, and wherein this printed circuit board (PCB) comprises the access area at least; And
Metal front frame, be located on the outer rim of this liquid crystal panel module and the periphery of this printed circuit board (PCB), this glue frame and this metal backing, wherein this metal front frame comprises the convex structure at least, be convexly set in the medial surface of this metal front frame, the position of this convex structure is corresponding to this jut and this access area, and this printed circuit board (PCB) is folded between this jut and this convex structure, so that this convex structure or this jut directly contact with this access area
Wherein this access area is provided with metal level, and this access area is arranged at the medial surface of printed circuit board (PCB), thereby this printed circuit board (PCB) is via this metal backing ground connection.
10. LCD comprises at least:
Backlight module comprises at least:
Metal backing comprises base plate and the side plate that is around in the edge of this base plate at least, and wherein this base plate is provided with jut;
The light source group is located in this metal backing; And
The glue frame is located on the outer rim of this metal backing;
Liquid crystal panel module is located on this backlight module;
Printed circuit board (PCB) electrically connects with this liquid crystal panel module, and is located on the lateral surface of this base plate of this backboard and with this jut and engages, and wherein this printed circuit board (PCB) comprises the access area at least; And
The circuit board metal housing, cover covers this printed circuit board (PCB), wherein this circuit board metal housing comprises the convex structure at least, the position of this convex structure is corresponding to this jut and this access area, and this printed circuit board (PCB) is folded between this jut and this convex structure, so that this access area directly contacts with this jut or this convex structure
Wherein this LCD also comprises preceding frame at least, is located on the outer rim of this liquid crystal panel module and the periphery of this glue frame and this metal backing.
11. LCD as claimed in claim 10, wherein this access area is provided with metal level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710146814 CN101373287B (en) | 2007-08-24 | 2007-08-24 | LCD device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710146814 CN101373287B (en) | 2007-08-24 | 2007-08-24 | LCD device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101373287A CN101373287A (en) | 2009-02-25 |
| CN101373287B true CN101373287B (en) | 2013-08-14 |
Family
ID=40447526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710146814 Active CN101373287B (en) | 2007-08-24 | 2007-08-24 | LCD device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101373287B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846822B (en) * | 2009-03-27 | 2011-08-17 | 胜华科技股份有限公司 | Structure of liquid crystal display device |
| TWI398834B (en) | 2009-12-30 | 2013-06-11 | Au Optronics Corp | Flat panel display module having anti-shock screw-tightening structure |
| CN101777287B (en) * | 2010-02-01 | 2011-12-07 | 友达光电股份有限公司 | Flat display module provided with quake-proof locking structure |
| CN102434859B (en) * | 2011-11-18 | 2013-12-18 | 深圳市华星光电技术有限公司 | Back frame and back light system |
| TWI443413B (en) * | 2011-12-14 | 2014-07-01 | Au Optronics Corp | Liquid crystal display |
| CN102621718B (en) * | 2012-02-15 | 2015-11-04 | 深圳市华星光电技术有限公司 | Liquid crystal display module |
| CN102566106B (en) * | 2012-03-15 | 2015-02-11 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| CN102720994A (en) * | 2012-06-20 | 2012-10-10 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN102891976B (en) * | 2012-09-24 | 2015-07-22 | 深圳市华星光电技术有限公司 | Display |
| CN103197449B (en) * | 2013-04-02 | 2016-08-10 | 深圳市华星光电技术有限公司 | Frame and liquid crystal module before the mixed type of a kind of plastic cement and metal |
| CN105629549A (en) * | 2016-01-26 | 2016-06-01 | 武汉华星光电技术有限公司 | Rubber frame, backlight module and display device |
| CN109116606B (en) * | 2018-09-14 | 2021-08-24 | Oppo（重庆）智能科技有限公司 | Display screen, manufacturing method of display screen and electronic equipment |
| CN111568350B (en) * | 2020-06-10 | 2023-03-24 | 重庆金山医疗技术研究院有限公司 | Capsule endoscope recorder |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6342933B1 (en) * | 1999-06-29 | 2002-01-29 | Kabushiki Kaisha Advanced Display | Liquid crystal display including driving circuit substrate held between convex portion and elastic pressing portion formed on two box members |
-
2007
- 2007-08-24 CN CN 200710146814 patent/CN101373287B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6342933B1 (en) * | 1999-06-29 | 2002-01-29 | Kabushiki Kaisha Advanced Display | Liquid crystal display including driving circuit substrate held between convex portion and elastic pressing portion formed on two box members |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2000-148028A 2000.05.26 |
| JP特开2001-265239A 2001.09.28 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101373287A (en) | 2009-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101373287B (en) | LCD device | |
| CN108259651B (en) | Display screen assembly and electronic equipment | |
| US20070252922A1 (en) | Liquid crystal display device | |
| US20070132909A1 (en) | Liquid crystal display device | |
| US8144284B2 (en) | Liquid crystal display device | |
| CN110662383B (en) | Electronic device | |
| CN101008753A (en) | Display device | |
| KR20040099604A (en) | Liquid Crystal Display Device | |
| WO2022267125A1 (en) | Display module and mobile terminal | |
| CN110648594A (en) | Electronic device | |
| CN208609029U (en) | Electronic equipment | |
| CN101655636A (en) | Side-view backlight module, liquid crystal display device and method for assembling side-view backlight module and liquid crystal display device | |
| CN216434585U (en) | Display module and display device | |
| JPH09283950A (en) | Lcd display attaching structure | |
| KR20090060707A (en) | Liquid crystal display module and portable phone having the same | |
| CN114144038A (en) | Display module and display device | |
| US20130258238A1 (en) | Fixing structure for printed circuit board assembly and liquid crystal display using the same | |
| WO2020258900A1 (en) | Under-screen fingerprint module matching flexible screen and mobile terminal | |
| CN100464228C (en) | Liquid crystal display device | |
| CN209842279U (en) | Frame, backlight module and liquid crystal display device | |
| US11740507B2 (en) | Support bracket, backlight module, and display screen | |
| CN211455148U (en) | Display device structure and display panel | |
| CN104460066B (en) | A kind of liquid crystal display | |
| TWI356932B (en) | Liquid crystal display | |
| CN113867026A (en) | Double-sided display module and double-sided display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Hsinchu Science Park, Taiwan, China Applicant after: INNOLUX DISPLAY CORP. Address before: Miaoli County, Taiwan, China Applicant before: CHI MEI OPTOELECTRONICS CORP. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: QIMEI ELECTRONIC CO LTD TO: INNOLUX DISPLAY CORPORATION |
|
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130723 Address after: Miaoli County, Taiwan, China Applicant after: CHI MEI OPTOELECTRONICS CORP. Address before: Tainan County, Taiwan, China Applicant before: CHI MEI OPTOELECTRONICS CORP. |