CN107238975A - A kind of backlight module and display module - Google Patents

A kind of backlight module and display module Download PDF

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Publication number
CN107238975A
CN107238975A CN201710632587.1A CN201710632587A CN107238975A CN 107238975 A CN107238975 A CN 107238975A CN 201710632587 A CN201710632587 A CN 201710632587A CN 107238975 A CN107238975 A CN 107238975A
Authority
CN
China
Prior art keywords
area
backlight module
framework
heat conduction
shield layer
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.)
Pending
Application number
CN201710632587.1A
Other languages
Chinese (zh)
Inventor
付常露
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truly Semiconductors Ltd
Original Assignee
Truly Semiconductors Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Truly Semiconductors Ltd filed Critical Truly Semiconductors Ltd
Priority to CN201710632587.1A priority Critical patent/CN107238975A/en
Publication of CN107238975A publication Critical patent/CN107238975A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133608Direct backlight including particular frames or supporting means
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0085Means for removing heat created by the light source from the package
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086Positioning aspects
    • G02B6/009Positioning aspects of the light source in the package
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133512Light shielding layers, e.g. black matrix
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133628Illuminating devices with cooling means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The invention discloses a kind of backlight module and display module.The backlight module includes framework, the light guide plate being arranged in the framework and the lamp bar being arranged on the light guide plate incidence surface, also include a high heat conduction light shield layer, the high heat conduction light shield layer includes the first area being sequentially connected, second area and the 3rd region, make high heat conduction light shield layer formation U-shaped structure after being bent between the first area and second area and between the second area and the 3rd region, the first area is pasted onto on the front of the backlight module, the second area is located at the light guide plate incidence surface and pastes the lamp bar, 3rd region is pasted onto on the back side of the backlight module.The backlight module has good heat dispersion, can reduce its internal temperature, improves service life.

Description

A kind of backlight module and display module
Technical field
The present invention relates to field of backlights, more particularly to a kind of backlight module and display module.
Background technology
Operationally, its lamp bar can generate heat the backlight module of liquid crystal module, and structure relatively closed inside backlight module Cause heat dissipating state bad, heat cannot timely dissipate for a long time, the blooming pieces such as diffusion sheet on light guide plate can be caused Because high temperature is deformed upon, for example, slightly heave, and then influence the image quality of display;And lamp bar long-time hot operation, meeting Reduce the life-span of liquid crystal module.
The content of the invention
In order to solve above-mentioned the deficiencies in the prior art, the present invention provides a kind of backlight module and display module.The backlight mould Block has good heat dispersion, can reduce its internal temperature, improves service life.
The technical problems to be solved by the invention are achieved by the following technical programs:
A kind of backlight module, including framework, the light guide plate that is arranged in the framework and it is arranged on the light guide plate incidence surface On lamp bar, an in addition to high heat conduction light shield layer, the high heat conduction light shield layer includes first area, the second area being sequentially connected With the 3rd region, make this after being bent between the first area and second area and between the second area and the 3rd region High heat conduction light shield layer formation U-shaped structure, the first area is pasted onto on the front of the backlight module, and the second area is located at At the light guide plate incidence surface and the lamp bar is pasted, the 3rd region is pasted onto on the back side of the backlight module.
Further, anti-dazzling screen is pasted with the side front of the framework, the anti-dazzling screen fixes the back of the body for stickup Optical module and display panel, and define the visible area of the backlight module.
Further, the first area is pasted onto the front of the light guide plate in the non-visible area of the lamp bar.
Further, the backlight module and display panel are fixed in the first area for stickup, and define the backlight The visible area of module.
Further, the first area is pasted onto on the front of the side of the framework.
Further, the shape of the first area is adapted with the side of the framework, and corresponding to the area of visible area Designed for hollow out in domain.
Further, the framework is set close to the position that the side of the lamp bar corresponds to the second area for hollow out Meter, so that the second area is directly exposed in the air outside the backlight module.
Further, the high heat conduction light shield layer is that single or double has sticking graphite flake, nano-carbon layer, nano-sized carbon One kind in copper foil, nanometer copper foil and nanometer aluminium foil.
Further, the high heat conduction light shield layer is to make base material with shading glue, make the new of filler with highly heat-conductive material Mixing material.
A kind of display module, including above-mentioned backlight module.
The present invention has the advantages that:The backlight module is using the high heat conduction light shield layer of one layer of U-shaped come to the lamp Bar plays a part of fixed, shading and radiating, and the heat that the lamp bar is produced is directly transferred on the second area, and is passed through Quickly it is transmitted on whole high heat conduction light shield layer by the second area, heat-transfer rate and area of dissipation is added, with good Heat dispersion, can reduce its internal temperature, improve service life.
Brief description of the drawings
The schematic diagram for the backlight module that Fig. 1 provides for the present invention;
Fig. 2 is the A-A sectional views of the backlight module shown in Fig. 1;
The schematic diagram for another backlight module that Fig. 3 provides for the present invention;
Fig. 4 is the B-B sectional views of the backlight module shown in Fig. 3;
Fig. 5 is the partial schematic diagram between framework, lamp bar and the high heat conduction shading glue in the backlight module of the present invention.
Embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
Embodiment one
As Figure 1-4, a kind of backlight module, including framework 1, the light guide plate 2 that is arranged in the framework 1 and it is arranged on institute The lamp bar 3 on the incidence surface of light guide plate 2, in addition to a high heat conduction light shield layer are stated, the high heat conduction light shield layer includes what is be sequentially connected First area 41, the region 43 of second area 42 and the 3rd, between the first area 41 and second area 42 and described second Make high heat conduction light shield layer formation U-shaped structure after being bent between the region 43 of region 42 and the 3rd, the first area 41 is pasted onto On the front of the backlight module, the second area 42 is located at the incidence surface of light guide plate 2 and pastes the lamp bar 3, institute The 3rd region 43 is stated to be pasted onto on the back side of the backlight module.
The backlight module plays fixation, shading and radiating to the lamp bar 3 using the high heat conduction light shield layer of a U-shaped Effect, the heat that the lamp bar 3 is produced is directly transferred on the second area 42, and is quickly passed via the second area 42 Lead on whole high heat conduction light shield layer, add heat-transfer rate and area of dissipation, with good heat dispersion, it can be reduced Internal temperature, improves service life.
The first area 41 is at least covered on the gap between the lamp bar 3 and the incidence surface of light guide plate 2, in gap location Shading is played a part of to the lamp bar 3, light leak is prevented.
In one embodiment, as illustrated in fig. 1 and 2, anti-dazzling screen 5 is pasted with the side front of the framework 1, it is described Anti-dazzling screen 5 fixes the backlight module and display panel for stickup, and defines the visible area of the backlight module, and its is two-sided to have Toughness.Now, the first area 41 is pasted onto in the non-visible area of the close lamp bar 3 in the front of the light guide plate 2, and And, the part anti-dazzling screen 5 positioned at the top of first area 41 can be pasted onto on the first area 41.
In another embodiment, as shown in Figures 3 and 4, the backlight module is fixed in the first area 41 for stickup And display panel, and the visible area of the backlight module is defined, to substitute existing anti-dazzling screen 5.Now, the first area 41 It is pasted onto on the front of the side of the framework 1, its shape is adapted with the side of the framework 1, and corresponding to the area of visible area Designed for hollow out in domain.
The shape of the first area 41 is depending on the framework 1, if the backlight module is conventional rectangle, and described the One region 41 is frame-shaped construction, if the backlight module is circle, and the first area 41 is loop configuration.
Existing anti-dazzling screen 5 is substituted with the first area 41 of the high heat conduction light shield layer, additionally it is possible to utilize the high heat conduction The heat conductivility of light shield layer, the heat that the lamp bar 3 is produced quickly is transmitted to the distal end of the lamp bar 3, makes heat in the back of the body It is distributed more uniform on the front of optical module, so not only contributes to improve radiating efficiency, moreover it is possible to prevent the backlight module from going out Existing localized hyperthermia and cause the down polaroid of optical film 6 inside it and display panel to deform upon.
As shown in figure 5, the framework 1 corresponds to the position of the second area 42 to engrave close to the side of the lamp bar 3 Sky design, so that the second area 42 is directly exposed in the air outside the backlight module, to improve the backlight module Heat dispersion, the power of pullling after the second area 42 is pasted by the first area 41 and second area 42 is come for the lamp Bar 3 is provided a supporting role.The lamp bar 3 is side entering type top ray structure, and its wiring board is preferred to use pcb board, and by pcb board The first area 41 is withstood on top, and the bottom surface of the framework 1 is withstood in bottom, to keep the shape of the second area 42.
The high heat conduction light shield layer is that single or double has sticking graphite flake, nano-carbon layer, nano-sized carbon copper foil, nanometer One kind in copper foil and nanometer aluminium foil etc., or, the high heat conduction light shield layer is to make base material with shading glue, made with highly heat-conductive material The mixed material material of filler, such as made base material with black shading glue, made the mixing material of filler making with aluminum metal.
An at least optical film 6, in general, the leaded light are additionally provided with the exiting surface of the light guide plate 2 of the backlight module Diffusion barrier, lower bright enhancement film and upper bright enhancement film are disposed with the exiting surface of plate 2, but the number amount and type of the optical film 6 should Depending on demand, it is not limited;Reflector plate 7 is additionally provided with the one side of the light guide plate 2 away from exiting surface.
Embodiment two
A kind of display module, including the backlight module described in embodiment one.
Embodiment described above only expresses embodiments of the present invention, and it describes more specific and detailed, but can not Therefore the limitation to the scope of the claims of the present invention is interpreted as, as long as the skill obtained using the form of equivalent substitution or equivalent transformation Art scheme, all should fall within the scope and spirit of the invention.

Claims (10)

1. a kind of backlight module, including framework, the light guide plate that is arranged in the framework and it is arranged on the light guide plate and enters light Lamp bar on face, it is characterised in that:Also include a high heat conduction light shield layer, the high heat conduction light shield layer includes first be sequentially connected Region, second area and the 3rd region, between the first area and second area and second area and the 3rd region Between bend after make the high heat conduction light shield layer formation U-shaped structure, the first area be pasted onto the backlight module front on, institute State second area to be located at the light guide plate incidence surface and paste the lamp bar, the 3rd region is pasted onto the backlight module The back side on.
2. backlight module according to claim 1, it is characterised in that:Shading is pasted with the side front of the framework Piece, the anti-dazzling screen fixes the backlight module and display panel for stickup, and defines the visible area of the backlight module.
3. backlight module according to claim 2, it is characterised in that:The first area is being pasted onto the light guide plate just Face is in the non-visible area of the lamp bar.
4. backlight module according to claim 1, it is characterised in that:The backlight mould is fixed in the first area for stickup Block and display panel, and define the visible area of the backlight module.
5. backlight module according to claim 4, it is characterised in that:The first area is pasted onto the side of the framework On front.
6. backlight module according to claim 5, it is characterised in that:The shape of the first area and the side of the framework While being adapted, and designed corresponding to the region of visible area for hollow out.
7. backlight module according to claim 1, it is characterised in that:The framework corresponds to close to the side of the lamp bar The position of the second area is designed for hollow out, so that the second area is directly exposed to the air outside the backlight module In.
8. according to any described backlight module in claim 1-7, it is characterised in that:The high heat conduction light shield layer be one side or One kind in the two-sided sticking graphite flake of tool, nano-carbon layer, nano-sized carbon copper foil, nanometer copper foil and nanometer aluminium foil.
9. according to any described backlight module in claim 1-7, it is characterised in that:The high heat conduction light shield layer is with shading Glue is made base material, is made the mixed material material of filler with highly heat-conductive material.
10. a kind of display module, it is characterised in that:Including any described backlight module in claim 1-9.
CN201710632587.1A 2017-07-28 2017-07-28 A kind of backlight module and display module Pending CN107238975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710632587.1A CN107238975A (en) 2017-07-28 2017-07-28 A kind of backlight module and display module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710632587.1A CN107238975A (en) 2017-07-28 2017-07-28 A kind of backlight module and display module

Publications (1)

Publication Number Publication Date
CN107238975A true CN107238975A (en) 2017-10-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112764255A (en) * 2021-01-23 2021-05-07 东莞市德普特电子有限公司 Novel side shading glue and attaching method thereof
US11846796B1 (en) 2022-06-22 2023-12-19 Chicony Power Technology Co., Ltd. Backlight module

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101446701A (en) * 2007-11-26 2009-06-03 奇美电子股份有限公司 Liquid crystal display device
CN102003661A (en) * 2010-11-03 2011-04-06 深圳市华星光电技术有限公司 Edge-type backlight module and liquid crystal display
CN202306066U (en) * 2011-07-27 2012-07-04 青岛海信电器股份有限公司 Liquid crystal module
CN102661554A (en) * 2012-02-10 2012-09-12 友达光电股份有限公司 Backlight module and heat dissipation design thereof
US20130258240A1 (en) * 2012-03-27 2013-10-03 Yajun Yu Backlight Module and LCD Device Comprising Backlight Module
US20130271691A1 (en) * 2012-04-11 2013-10-17 Yajun Yu Backlight Module and LCD Device
CN105473931A (en) * 2013-08-12 2016-04-06 堺显示器制品株式会社 Light source device and display device
CN205157931U (en) * 2015-11-13 2016-04-13 Tcl显示科技(惠州)有限公司 Heat radiation structure and LCD are shaded
CN206020882U (en) * 2016-09-23 2017-03-15 信利半导体有限公司 A kind of backlight and liquid crystal display module
CN206115089U (en) * 2016-08-09 2017-04-19 信利半导体有限公司 Backlight and liquid crystal display module
CN206147229U (en) * 2016-11-17 2017-05-03 信利半导体有限公司 Backlight and liquid crystal display module
CN207114969U (en) * 2017-07-28 2018-03-16 信利半导体有限公司 A kind of backlight module and display module

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101446701A (en) * 2007-11-26 2009-06-03 奇美电子股份有限公司 Liquid crystal display device
CN102003661A (en) * 2010-11-03 2011-04-06 深圳市华星光电技术有限公司 Edge-type backlight module and liquid crystal display
CN202306066U (en) * 2011-07-27 2012-07-04 青岛海信电器股份有限公司 Liquid crystal module
CN102661554A (en) * 2012-02-10 2012-09-12 友达光电股份有限公司 Backlight module and heat dissipation design thereof
US20130258240A1 (en) * 2012-03-27 2013-10-03 Yajun Yu Backlight Module and LCD Device Comprising Backlight Module
US20130271691A1 (en) * 2012-04-11 2013-10-17 Yajun Yu Backlight Module and LCD Device
CN105473931A (en) * 2013-08-12 2016-04-06 堺显示器制品株式会社 Light source device and display device
CN205157931U (en) * 2015-11-13 2016-04-13 Tcl显示科技(惠州)有限公司 Heat radiation structure and LCD are shaded
CN206115089U (en) * 2016-08-09 2017-04-19 信利半导体有限公司 Backlight and liquid crystal display module
CN206020882U (en) * 2016-09-23 2017-03-15 信利半导体有限公司 A kind of backlight and liquid crystal display module
CN206147229U (en) * 2016-11-17 2017-05-03 信利半导体有限公司 Backlight and liquid crystal display module
CN207114969U (en) * 2017-07-28 2018-03-16 信利半导体有限公司 A kind of backlight module and display module

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112764255A (en) * 2021-01-23 2021-05-07 东莞市德普特电子有限公司 Novel side shading glue and attaching method thereof
US11846796B1 (en) 2022-06-22 2023-12-19 Chicony Power Technology Co., Ltd. Backlight module

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Application publication date: 20171010