CN207114960U

CN207114960U - A kind of liquid crystal display die set

Info

Publication number: CN207114960U
Application number: CN201721195044.XU
Authority: CN
Inventors: 吴伟佳; 蔡培
Original assignee: Truly Semiconductors Ltd
Current assignee: Truly Semiconductors Ltd
Priority date: 2017-09-18
Filing date: 2017-09-18
Publication date: 2018-03-16
Anticipated expiration: 2027-09-18

Abstract

The utility model discloses a kind of liquid crystal display die set, it includes FPC, backlight module and LCD modules, the FPC upper surfaces are provided with binding golden finger and installing zone, formed with bent area between the binding golden finger and the installing zone, the FPC lower surfaces are provided with stiffening plate in the correspondence position of the installing zone, and the installing zone is provided with LED and peripheral circuit element.The LED groove and peripheral circuit element groove corresponding with the LED and the peripheral circuit element are provided with the backlight module.The binding golden finger is bound on the positive golden finger of LCD modules.During assembling, the FPC is folded into the back side of the LCD modules along the bent area, and the LED and the peripheral circuit element are fallen into the LED groove and the peripheral circuit element groove.It is the function that two FPC in traditional liquid crystal display module can be achieved only to need a FPC, saves parts and part installation steps, reduces the thickness and production cost of liquid crystal display die set.

Description

A kind of liquid crystal display die set

Technical field

A kind of technical field of liquid crystal display is the utility model is related to, more specifically to a kind of liquid crystal display die set.

Background technology

With the fast development of electronic industry and information technology, display screen as electronic product Important Components more next Applied in more products, production industry is also developed rapidly, and is widely used in mobile phone, digital camera, car Carry in the products such as display.The price of the liquid crystal display die set of some small sizes is more and more lower at present, and profit margin is also very It is limited, it is necessary to lift the competitiveness of product using a kind of structure of economic and reliable.In the liquid crystal display die set design of routine, The FPC of backlight FPC and LCD module is each independent, and LED is fitted on backlight FPC by SMT, LCD module peripheral circuits Element is fitted in by SMT on the FPC of LCD modules, is so needed two FPC and is descended SMT component to work twice.Its cost compared with Height, efficiency are low.

Utility model content

Technical problem to be solved in the utility model there is provided a kind of liquid crystal display die set, it is only necessary to which a FPC is The function of two FPC in traditional liquid crystal display module can be achieved, save parts and part installation steps, reduce liquid crystal Show the thickness and production cost of module, realize the lightness of liquid crystal display die set and improve the competitiveness of product.

Technical problem to be solved in the utility model is achieved by the following technical programs：

In order to solve the above technical problems, the utility model provides a kind of liquid crystal display die set, it includes FPC, backlight mould Group and LCD modules, the FPC upper surfaces are provided with binding golden finger and installing zone, the binding golden finger and the installing zone it Between formed with bent area, the FPC lower surfaces be provided with stiffening plate in the correspondence position of the installing zone, the installing zone is provided with LED and peripheral circuit element；It is provided with the backlight module corresponding with the LED and the peripheral circuit element LED groove and peripheral circuit element groove；The binding golden finger is bound on the positive golden finger of LCD modules；During assembling, The FPC is folded into the back side of the LCD modules along the bent area, and the LED and the peripheral circuit element fall into institute State in LED groove and the peripheral circuit element groove.

Further, the color of the stiffening plate is black, dark color or silver color.

Further, it is pasted with fin outside the stiffening plate.

Further, the installing zone of the FPC is provided with shading double faced adhesive tape.

Further, the LCD modules include upper polaroid, upper substrate, infrabasal plate and the lower polarisation for being sequentially overlapped setting Piece.

Further, the infrabasal plate and the down polaroid mutually stagger and formed with dead slot, the installing zones of the FPC It is placed in the dead slot.

Further, after the completion of assembling, the distance of the FPC and the infrabasal plate is d, wherein 0.03mm≤d≤ 0.08mm。

Further, the FPC includes substrate layer, and the upper surface of the substrate layer is provided with circuit layer, the substrate layer Lower surface be provided with metallic radiating layer.

Further, the FPC also dissipates including at least one through the substrate layer, the circuit layer and the metal The through hole of thermosphere, the inwall of the through hole are provided with the heat-conducting layer contacted with the circuit layer, the metallic radiating layer.

Further, the material of the stiffening plate is PI, FR4 or stainless steel.

The utility model has the advantages that：Stiffening plate can strengthen the intensity of installing zone, make installing zone be easier to pacify Dress；Because installing zone would generally be provided with the larger heater element of the caloric values such as LED, stiffening plate can lift FPC heat radiation energy Power；Stiffening plate can block the light that LED is sent simultaneously, avoid producing speck.Only need a FPC that traditional liquid crystal can be achieved Two FPC function in display module, saves parts and part installation steps, reduce liquid crystal display die set thickness and Production cost, realize the lightness of liquid crystal display die set and improve the competitiveness of product.

The light that the stiffening plate of silver color can send LED reflects back, and increases the utilization rate of light, lifts backlight module Brightness.

After the completion of assembling, in order to prevent FPC from tilting bounce-back, the distance of the FPC and infrabasal plate are d, wherein 0.03mm≤d ≤0.08mm.Such distance can just push down FPC, further realize the fixation to FPC, when distance d is larger, if hidden For light double faced adhesive tape because temperature excess viscosity reduces, FPC easily tilts bounce-back；And when distance d is smaller, FPC is easily and infrabasal plate Interfere.

Brief description of the drawings

Fig. 1 is a kind of structural representation of liquid crystal display die set provided by the utility model.

Fig. 2 is sectional view at Fig. 1 AA.

Fig. 3 is enlarged drawing at Fig. 2 B.

Fig. 4 is Fig. 1 back light module unit structure schematic diagram.

Fig. 5 is sectional view at Fig. 4 CC.

Fig. 6 is enlarged drawing at Fig. 5 D.

Fig. 7 is Fig. 1 LCD modular structure schematic diagrames.

Fig. 8 is sectional view at Fig. 7 EE.

Fig. 9 is enlarged drawing at Fig. 8 F.

Figure 10 is enlarged drawing at Fig. 3 G.

Embodiment

The utility model is described in detail with reference to embodiment, embodiment is only of the present utility model preferred real Mode is applied, is not to restriction of the present utility model.

Fig. 1 to Fig. 9 is referred to, is a kind of liquid crystal display die set provided by the utility model, the liquid crystal display die set bag FPC1, backlight module 2 and LCD modules 3 are included, the FPC1 upper surfaces are provided with binding golden finger 11 and installing zone 12, the binding Formed with bent area 13 between golden finger 11 and the installing zone 12, the FPC1 lower surfaces are in the corresponding position of the installing zone 12 Stiffening plate 14 is installed, the installing zone 12 is provided with LED 121 and peripheral circuit element 122.The stiffening plate 14 can strengthen installation The intensity in area 12, installing zone 12 is set to be easier to install；Due to installing zone 12, would generally to be provided with the caloric values such as LED 121 larger Heater element, stiffening plate 14 can lift FPC1 heat-sinking capability；Stiffening plate 14 can block the light that LED 121 is sent simultaneously, Avoid producing speck.It is provided with the backlight module 2 corresponding with the LED 121 and the peripheral circuit element 122 LED groove 21 and peripheral circuit element groove 22, light guide plate of the LED groove 21 close to the backlight module 2.The golden hand of binding Refer to 11 to be bound on the 3 positive golden finger of LCD modules.During assembling, because binding golden finger 11 is already fixed to LCD modules On 3 golden finger, the FPC1 is folded into the back side of the LCD modules 3 along the bent area 13, so can will except binding Whole FPC1 outside golden finger 11 overturns 180 °, and after the completion of upset, the LED 121 and the peripheral circuit element 122 fall Enter in the LED groove 21 and the peripheral circuit element groove 22.Liquid crystal display die set provided by the utility model, it is only necessary to One FPC1 is the function that two FPC in traditional liquid crystal display module can be achieved, and saves parts and part installation steps, is dropped The low thickness and production cost of liquid crystal display die set, realizes the lightness of liquid crystal display die set and improves the competition of product Power.

Preferably, the color of the stiffening plate 14 is black, dark color or silver color.The present embodiment is preferably silver color, silver color Stiffening plate 14 can reflect back the light that LED 121 is sent, and increase the utilization rate of light, lift the brightness of backlight module 2.

Preferably in the larger backlight module 2 of caloric value, fin 141 is pasted with outside the stiffening plate 14, can be entered One step lifts FPC1 radiating effect.

Preferably, the material of the stiffening plate is PI, FR4 or stainless steel.In other embodiments, if backlight module 2 Caloric value it is larger, can also use better heat-radiation effect heat sink material, such as aluminium foil stiffening plate.

Preferably, the installing zone 12 of the FPC1 is provided with shading double faced adhesive tape 123.The present embodiment is preferably by backlight module 2 In shading double faced adhesive tape 123 extend to installing zone 12, installing zone 12, which passes through the shading double faced adhesive tape 123, further to be realized and fixes.Together When shading double faced adhesive tape 123 be also avoided that the generation of local speck.

Preferably, the LCD modules 3 include being sequentially overlapped the upper polaroid 31 of setting, upper substrate 32, infrabasal plate 33 and under Polaroid 34.The infrabasal plate 33 and the down polaroid 34 mutually stagger and formed with dead slot 35, the installing zones of the FPC1 12 are placed in the dead slot 35.The gap of dead slot 35 between infrabasal plate 33 and down polaroid 34 can be made full use of, FPC1 is hidden Hide wherein, further reduce the thickness of liquid crystal display die set, lift the competitiveness of product.

Referring to Fig. 10, more preferably, after the completion of assembling, in order to prevent FPC1 from tilting bounce-back, the FPC1 and the lower base The distance of plate 33 is d, 0.03mm≤d≤0.08mm.Such distance can just push down FPC1, further realize to FPC1's It is fixed, when distance d is larger, if shading double faced adhesive tape, because temperature excess viscosity reduces, FPC1 easily tilts bounce-back；And when away from When smaller from d, FPC1 easily interferes with infrabasal plate 33.

Preferably, the FPC1 includes substrate layer 15, and the upper surface of the substrate layer 15 is provided with circuit layer 16, the base The lower surface of material layer 15 is provided with metallic radiating layer 17, and the LED is welded in the welding region of the circuit layer 16.Due to The thinner thickness of substrate layer 15, the heat can diffuse to metallic radiating layer 17 by substrate layer 15, the energy of metallic radiating layer 17 Enough effectively increase FPC1 area of dissipation, plays a part of Homogeneouslly-radiating, so as to improve FPC1 radiating efficiency.

Preferably, the FPC1 also runs through the substrate layer 15, the circuit layer 16 and the gold including at least one Belong to the through hole 18 of heat dissipating layer 17, the inwall of the through hole 18 is provided with to be contacted with the circuit layer 16, the metallic radiating layer 17 Heat-conducting layer.Using heat conductivility good at through hole 18, the circuit layer 16 and metal of the both sides of substrate layer 15 can be electrically connected with Heat dissipating layer 17, good heat conduction function is played, and heat-conducting layer can provide heat conduction function, to reach good radiating effect.

Preferably, be provided with the heat carrier being connected with outside conductive structure in the positioning hole, the heat carrier with it is described Heat-conducting layer is in contact, so that FPC1 heat diffuses to outside conductive structure by the heat carrier in the positioning hole, to enter One step improves FPC1 radiating efficiency.

Above example only expresses embodiment of the present utility model, and its description is more specific and detailed, but can not Therefore the limitation to the utility model patent scope is interpreted as, as long as being obtained using the form of equivalent substitution or equivalent transformation Technical scheme, all should fall within the scope of protection of the utility model.

Claims

1. a kind of liquid crystal display die set, it is characterised in that it includes：

FPC, its upper surface is provided with binding golden finger and installing zone, formed with curved between the binding golden finger and the installing zone Folding area, the FPC lower surfaces are provided with stiffening plate in the correspondence position of the installing zone, and the installing zone is provided with LED and periphery Circuit element；

Backlight module, in the backlight module provided with the LED groove corresponding with the LED and the peripheral circuit element and Peripheral circuit element groove；

LCD modules, the binding golden finger are bound on the positive golden finger of LCD modules；

During assembling, the FPC is folded into the back side of the LCD modules, the LED and the peripheral circuit along the bent area Element is fallen into the LED groove and the peripheral circuit element groove.

A kind of 2. liquid crystal display die set according to claim 1, it is characterised in that the color of the stiffening plate be black, Dark or silver color.

3. a kind of liquid crystal display die set according to claim 1, it is characterised in that be pasted with radiating outside the stiffening plate Piece.

4. a kind of liquid crystal display die set according to claim 1, it is characterised in that the installing zone of the FPC is provided with shading Double faced adhesive tape.

5. a kind of liquid crystal display die set according to claim 1, it is characterised in that the LCD modules include being sequentially overlapped Upper polaroid, upper substrate, infrabasal plate and the down polaroid of setting.

6. a kind of liquid crystal display die set according to claim 5, it is characterised in that the infrabasal plate and the down polaroid Mutually stagger and be placed in formed with dead slot, the installing zone of the FPC in the dead slot.

A kind of 7. liquid crystal display die set according to claim 5, it is characterised in that after the completion of assembling, the FPC with it is described The distance of infrabasal plate is d, wherein 0.03mm≤d≤0.08mm.

8. a kind of liquid crystal display die set according to claim 1, it is characterised in that the FPC includes substrate layer, the base The upper surface of material layer is provided with circuit layer, and the lower surface of the substrate layer is provided with metallic radiating layer.

9. a kind of liquid crystal display die set according to claim 8, it is characterised in that the FPC also includes at least one pass through The through hole of the substrate layer, the circuit layer and the metallic radiating layer is worn, the inwall of the through hole is provided with and the electricity Road floor, the heat-conducting layer of metallic radiating layer contact.

A kind of 10. liquid crystal display die set according to claim 1, it is characterised in that the material of the stiffening plate be PI, FR4 or stainless steel.