CN206115089U - Backlight and liquid crystal display module - Google Patents

Backlight and liquid crystal display module Download PDF

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Publication number
CN206115089U
CN206115089U CN201620852790.0U CN201620852790U CN206115089U CN 206115089 U CN206115089 U CN 206115089U CN 201620852790 U CN201620852790 U CN 201620852790U CN 206115089 U CN206115089 U CN 206115089U
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China
Prior art keywords
metal rack
backlight
fpc
thin film
guide plate
Prior art date
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Active
Application number
CN201620852790.0U
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Chinese (zh)
Inventor
周福新
郭文
何方根
林文峰
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Truly Semiconductors Ltd
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Truly Semiconductors Ltd
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Priority to CN201620852790.0U priority Critical patent/CN206115089U/en
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Publication of CN206115089U publication Critical patent/CN206115089U/en
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Abstract

The utility model discloses a backlight and liquid crystal display module. This backlight includes the metal frame, the metal frame has bottom surface and side, be provided with in the metal frame with light guide plate in the frame, be provided with the light emitting source between the income plain noodles of light guide plate and the side of metal frame, the light emitting source includes that FPC, welding are in the last luminescent device of FPC, paste through the heat -conducting glue FPC keeps away from the heat dissipation film of luminescent device one side. This backlight and liquid crystal display module's radiating effect is good, and the sticking effect of heat dissipation film is stable, and low in production cost, easily the volume production.

Description

A kind of backlight and liquid crystal display module
Technical field
This utility model is related to field of backlights, more particularly to a kind of backlight and liquid crystal display module.
Background technology
The backlight of liquid crystal display operationally, can generate heat by its LED lamp bar, and inside backlight, relatively closed structure is led Cause heat dissipating state bad, heat long-time timely cannot dissipate, can cause the blooming pieces such as diffusion sheet on light guide plate because High temperature is deformed upon, for example, slightly heave, and then affects the image quality for showing;And lamp bar long-time hot operation, can make The life-span of liquid crystal display is reduced, and the life-span of LED also can be impacted.
Utility model content
In order to solve above-mentioned the deficiencies in the prior art, this utility model provides a kind of backlight and liquid crystal display module.Should The radiating effect of backlight and liquid crystal display module is good, and the sticking effect of the thin film that radiates is stable, and low production cost, it is easy to measure Produce.
Technical problem to be solved in the utility model is achieved by the following technical programs:
A kind of backlight, including metal rack, the metal rack have bottom surface and side;Framework is provided with the metal rack With the light guide plate in the framework;Luminous source is provided between the side of the incidence surface and metal rack of the light guide plate;Described Light source is included FPC, the luminescent device being welded on the FPC, the FPC is pasted onto by heat-conducting glue away from the luminescent device The radiating thin film of side.
Further, the radiating thin film pastes the metal rack near the luminous source away from the side of the FPC Side on.
Further, it is described radiating thin film one end be pasted onto between the FPC and the side of metal rack, the other end along Metal rack extends, and is pasted onto on side of the bottom surface of the metal rack away from the light guide plate.
Further, the radiating thin film is graphite flake.
Further, reflector plate is provided between the bottom surface of the light guide plate and the metal rack.
Further, blooming is provided with the exiting surface of the light guide plate.
Further, brake sack is provided with the framework.
A kind of liquid crystal display module, including above-mentioned backlight.
This utility model has the advantages that:
(1)The backlight not only can strengthen FPC and radiating using the FPC and radiating thin film of heat conduction glue luminous source Sticking effect between thin film, and heat-conducting glue can quickly by the heat on FPC be transmitted to radiating thin film on, accelerate radiating;
(2)Radiating thin film is pasted on the side of metal rack, the heat in radiating thin film metal rack can be transmitted to In, using the good heat conductivility of metal rack, collaboration radiating;
(3)The radiating thin film extends bending, and pastes the outer side bottom surface of metal rack along metal rack, increases radiating The area of thin film, enhances the radiating effect of backlight, and radiating thin film is pasted onto on the bottom surface of metal rack, metal has both been increased The bonding area of frame and radiating thin film, also further enhancing the collaboration radiating effect between radiating thin film and metal rack;
(4)Graphite flake has good plane thermal conductivity performance, can quickly by heat along graphite flake planar conductive to backlight Radiated outside source.
Description of the drawings
The front view of the backlight that Fig. 1 is provided for this utility model;
A-A profiles of the Fig. 2 for backlight shown in Fig. 1;
B-B profiles of the Fig. 3 for backlight shown in Fig. 2;
The partial enlarged drawing of the folded edges of the metal rack of the backlight that Fig. 4 is provided for this utility model.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is described in detail.
Embodiment 1
As Figure 1-3, a kind of backlight, including metal rack 1, the metal rack 1 have bottom surface and side;The metal The light guide plate 3 being provided with frame 1 in framework 2 and the framework 2;Between the side of the incidence surface and metal rack 1 of the light guide plate 3 It is provided with luminous source 4;The luminous source 4 includes FPC 42, the luminescent device 41 being welded on the FPC 42, by heat-conducting glue 43 are pasted onto radiating thin film 44 of the FPC 42 away from 41 side of the luminescent device.
The backlight pastes the FPC 42 and radiating thin film 44 of luminous source 4 using heat-conducting glue 43, not only can strengthen FPC 42 and radiating thin film 44 between sticking effect, and heat-conducting glue 43 can quickly by the heat on FPC 42 be transmitted to radiate it is thin On film 44, accelerate radiating.
The FPC 42 and radiating thin film 44 can also be pasted by double faced adhesive tape or other viscoses.
The radiating thin film 44 pastes the metal rack 1 near the luminous source 4 away from the side of the FPC 42 On one side, shown in Fig. 2 and 3, the metal rack 1 is located in the framework 2, according to not near the one side of the luminous source 4 With the overall structure of product, near luminous source 4 metal rack 1 side can also in the outside of the framework 2, metal rack 1 Position has no effect on the structure of radiating thin film 44.
Radiating thin film 44 is pasted on the side of metal rack 1, the heat in radiating thin film 44 metal can be transmitted to In frame 1, using the good heat conductivility of metal rack 1, collaboration radiating.
44 one end of the radiating thin film is pasted onto between the side of the FPC 42 and metal rack 1, and the other end is along metal Frame 1 extends, and be pasted onto on side of the bottom surface of the metal rack 1 away from the light guide plate 3.
The radiating thin film 44 extends bending, and pastes the outer side bottom surface of metal rack 1 along metal rack 1, increases scattered The area of hot thin film 44, enhances the radiating effect of backlight, radiating thin film 44 is pasted onto on the bottom surface of metal rack 1, is pasted Area increase, not only sticking effect is more stable, and further enhancing radiating thin film 44 and metal rack 1 collaboration radiating Effect.
As shown in figure 4, the side of the metal rack 1 can be provided with folded edges 11, the bending part to the thin film 44 that radiates Can shield.
Preferably, for graphite flake, the plane thermal conductivity of graphite flake is functional for the thin film 44 that radiates, and will quickly can light The heat that device 41 is produced along graphite flake planar conductive to outside backlight, and distribute heat in external environment;And stone The low production cost of ink sheet, it is easy to volume production.
The luminescent device 41 is preferred but is not limited to LED;Set between the bottom surface of the light guide plate 3 and the metal rack 1 It is equipped with reflector plate 5;Brake sack 7 is provided with the framework 2;Blooming 6, this reality are provided with the exiting surface of the light guide plate 3 Apply in example, on the exiting surface of the light guide plate 3, be sequentially provided with diffusion barrier 61, lower bright enhancement film 62 and upper bright enhancement film 63, the optics The particular number and type of film 6 should not be with the present embodiment to limit.
Embodiment 2
A kind of liquid crystal display module, including the backlight described in embodiment 1.
Embodiment described above only expresses embodiment of the present utility model, and its description is more concrete and detailed, but and Therefore the restriction to this utility model the scope of the claims can not be interpreted as, as long as the institute in the form of equivalent or equivalent transformation The technical scheme of acquisition, all should fall within protection domain of the present utility model.

Claims (5)

1. a kind of backlight, it is characterised in that including metal rack, the metal rack has bottom surface and side;In the metal rack The light guide plate being provided with framework and the framework;It is provided between the side of the incidence surface and metal rack of the light guide plate luminous Source;The luminous source is included FPC, the luminescent device being welded on the FPC, the FPC is pasted onto by heat-conducting glue away from institute The radiating thin film of luminescent device side is stated, the luminescent device is emitting led for top, the radiating thin film is graphite flake;It is described to dissipate Hot thin film pastes the metal rack on the side of the luminous source away from the side of the FPC, and the metal rack is close The one side of the luminous source is located in the framework;One end of the radiating thin film is pasted onto the side of the FPC and metal rack Between face, the other end extends bending, and is pasted onto the side of the bottom surface away from the light guide plate of the metal rack along metal rack On;The side of the metal rack is provided with folded edges.
2. backlight according to claim 1, it is characterised in that set between the bottom surface of the light guide plate and the metal rack It is equipped with reflector plate.
3. backlight according to claim 1, it is characterised in that be provided with blooming on the exiting surface of the light guide plate.
4. backlight according to claim 1, it is characterised in that be provided with brake sack on the framework.
5. a kind of liquid crystal display module, it is characterised in that including arbitrary described backlight in claim 1-4.
CN201620852790.0U 2016-08-09 2016-08-09 Backlight and liquid crystal display module Active CN206115089U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620852790.0U CN206115089U (en) 2016-08-09 2016-08-09 Backlight and liquid crystal display module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620852790.0U CN206115089U (en) 2016-08-09 2016-08-09 Backlight and liquid crystal display module

Publications (1)

Publication Number Publication Date
CN206115089U true CN206115089U (en) 2017-04-19

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CN201620852790.0U Active CN206115089U (en) 2016-08-09 2016-08-09 Backlight and liquid crystal display module

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CN (1) CN206115089U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107167959A (en) * 2017-04-28 2017-09-15 深圳市南极光电子科技有限公司 A kind of LED backlight radiating subassembly, LCDs and intelligent terminal
CN107238975A (en) * 2017-07-28 2017-10-10 信利半导体有限公司 A kind of backlight module and display module
CN116256913A (en) * 2023-02-21 2023-06-13 惠科股份有限公司 Temperature adjusting method of display device and display device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107167959A (en) * 2017-04-28 2017-09-15 深圳市南极光电子科技有限公司 A kind of LED backlight radiating subassembly, LCDs and intelligent terminal
CN107238975A (en) * 2017-07-28 2017-10-10 信利半导体有限公司 A kind of backlight module and display module
CN116256913A (en) * 2023-02-21 2023-06-13 惠科股份有限公司 Temperature adjusting method of display device and display device

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