WO2019095475A1 - Structure de fixation du module de rétroéclairage et son procédé de fabrication - Google Patents

Structure de fixation du module de rétroéclairage et son procédé de fabrication Download PDF

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Publication number
WO2019095475A1
WO2019095475A1 PCT/CN2017/115685 CN2017115685W WO2019095475A1 WO 2019095475 A1 WO2019095475 A1 WO 2019095475A1 CN 2017115685 W CN2017115685 W CN 2017115685W WO 2019095475 A1 WO2019095475 A1 WO 2019095475A1
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WO
WIPO (PCT)
Prior art keywords
reflective sheet
backlight module
sheet
back plate
backing plate
Prior art date
Application number
PCT/CN2017/115685
Other languages
English (en)
Chinese (zh)
Inventor
黄北洲
Original Assignee
惠科股份有限公司
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 惠科股份有限公司 filed Critical 惠科股份有限公司
Publication of WO2019095475A1 publication Critical patent/WO2019095475A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133628—Illuminating devices with cooling means

Definitions

  • the present application relates to a fixing structure of a backlight module, and more particularly to a fixing structure of a backlight module that fixes a reflective sheet and a backing plate to each other.
  • liquid crystal display LCD
  • PDAs personal digital assistants
  • LCD liquid crystal display
  • laptops, digital cameras, digital camcorders, mobile phones, computer screens and LCD TVs and other electronic products PDAs
  • the liquid crystal display panel in the liquid crystal display is a non-self-luminous display panel, it is necessary to use the light source provided by the backlight module to generate a display function.
  • the display panel, the reflective sheet and the back sheet are relatively large, which makes the processing of the adhesive sheet on the back sheet difficult, and the reflective sheet is sticky. It is easy to produce unevenness after being attached to the back sheet. As a result, the overall illumination quality of the backlight module will be affected, resulting in a liquid crystal display that is prone to image mura.
  • the purpose of the present application is to provide a fixing structure of a backlight module, which greatly eliminates the design of the design in which the reflective sheet is adhered to the backing plate by the adhesive, and the processing work of the adhesive can be omitted. It can avoid the unevenness caused by the traditional reflective sheet after sticking to the back sheet. In this way, the overall illumination quality of the backlight module can be improved, and the phenomenon that the liquid crystal display is uneven due to the unevenness of the reflection sheet is generated, which is quite in line with the trend of the future liquid crystal display tending to a large size design.
  • the present application provides a fixing structure of a backlight module, including a reflective sheet and a back sheet.
  • Two positioning members are respectively disposed on two sides of the reflection sheet.
  • the back plate is connected to the reflective sheet, and two engaging portions are disposed on two sides of the back plate, and the positioning member is engaged with the engaging portion to fix the reflective sheet and the back plate to each other.
  • the positioning member and the reflective sheet are integrally formed.
  • the positioning members are respectively a convex member, and the engaging portions are respectively a concave portion.
  • the male member has a telescopic elastic member, and the recessed portion is provided with a groove.
  • the elastic elastic member is caught in the groove.
  • the reflective sheet is a single-transmissive reflective sheet.
  • the backing plate is made of a heat dissipating material.
  • the present application also provides a method for manufacturing a fixed structure of a backlight module, comprising the steps of: preparing a reflective sheet, forming two positioning members on opposite sides of the reflective sheet; and preparing a back sheet, which is connected to the reflective sheet, on the back Two engaging portions are formed on both sides of the plate, and the positioning member is correspondingly engaged with the engaging portion to fix the reflecting sheet and the backing plate to each other.
  • the positioning member and the reflective sheet are integrally formed.
  • the positioning members are respectively a convex member, and the engaging portions are respectively a concave portion.
  • the male member has a telescopic elastic member, and the recessed portion is provided with a groove.
  • the elastic elastic member is caught in the groove.
  • the reflective sheet is a single-transmissive reflective sheet.
  • the backing plate is made of a heat dissipating material.
  • the present application also provides a backlight module including a reflective sheet and a back sheet.
  • Two positioning members are respectively disposed on two sides of the reflective sheet, and the positioning member and the reflective sheet are integrally formed.
  • the back plate is connected to the reflective sheet.
  • the two sides of the back plate are provided with two engaging portions.
  • the positioning member is engaged with the engaging portion to fix the reflective sheet and the back plate.
  • the back plate is made of heat dissipation. Material.
  • the positioning members are respectively a convex member, and the engaging portions are respectively a concave portion.
  • the male member has a telescopic elastic member, and the recessed portion is provided with a groove.
  • the elastic elastic member is caught in the groove.
  • the reflective sheet is a single-transmissive reflective sheet.
  • the backing plate is made of aluminum.
  • the fixing structure of the backlight module of the present application is provided with two positioning members on both sides of the reflective sheet, and two engaging portions are disposed on both sides of the backing plate, and the positioning member and the card are provided.
  • the matching of the joints can overcome the problems of the prior art, and the reflection sheet and the back plate are fixed to each other to improve the overall light-emitting quality of the backlight module, and the phenomenon that the liquid crystal display is uneven due to the unevenness of the reflection sheet is generated.
  • FIG. 1 is a schematic view of an embodiment of a fixing component of a backlight module of the present application.
  • FIG. 2 is another schematic view of an embodiment of a fixing component of a backlight module of the present application.
  • FIG 3 is another schematic view of an embodiment of a fixing component of a backlight module of the present application.
  • FIG. 4 is another schematic view of an embodiment of a fixing component of a backlight module of the present application.
  • FIG. 5 is a schematic diagram of an embodiment of a fixing structure of a backlight module of the present application.
  • FIG. 6 is another schematic diagram of an embodiment of a fixing structure of a backlight module of the present application.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first” or “second” may include one or more of the described features either explicitly or implicitly.
  • a plurality means two or more unless otherwise stated.
  • the term “comprises” and its variations are intended to cover a non-exclusive inclusion.
  • connection In the description of the present application, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise specifically defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meanings of the above terms in the present application can be understood in the specific circumstances for those skilled in the art.
  • FIG. 1 is a schematic view of an embodiment of a fixing component 1 of a backlight module of the present application.
  • 2 is another schematic view of an embodiment of the fixing component 1 of the backlight module of the present application.
  • 3 is a schematic view of an embodiment of a fixing member 5 of a backlight module of the present application.
  • 4 is another schematic view of an embodiment of the fixing component 5 of the backlight module of the present application.
  • FIG. 5 is a schematic diagram of an embodiment of a fixing structure 6 of a backlight module of the present application.
  • FIG. 6 is another schematic diagram of an embodiment of the fixing structure 6 of the backlight module of the present application.
  • the fixing component 1 of the backlight module is used for fixing a reflective sheet 2 on a backing plate 3, which greatly eliminates the design flaw of the adhesive which adheres the reflective sheet to the backing plate.
  • the reflective sheet 2 has a reflective top surface 21 and a reflective bottom surface 22, and the back surface 3 has an opposite back surface 31 and a back surface 32.
  • the reflective sheet 2 further has a reflective through hole 23 penetrating through the top surface 21 of the reflective sheet and the bottom surface 22 of the reflective sheet.
  • the back plate 3 further has a back plate through hole 33 extending through the top surface 31 of the back plate and the bottom surface 32 of the back plate. The opening size of the through hole 23 corresponds to the opening size of the back plate through hole 33.
  • the fixing component 1 of the backlight module includes a first clamping portion 11, a second clamping portion 12, a stem portion 13, and a cushion pad 14.
  • the rod portion 13 connects the first clamping portion 11 and the second clamping portion 12.
  • the first clamping portion 11 has a first clamping surface 111
  • the second clamping portion 12 has a second clamping surface 121
  • the stem portion 13 has a peripheral side surface 131.
  • the peripheral side surface 131 connects the first clamping surface 111 and the second clamping surface 121
  • the first clamping surface 111 faces the second clamping surface 121 .
  • the rod portion 13 and the first clamping portion 11 further have a recessed hole 112.
  • the recessed hole 112 does not penetrate the second clamping portion 12, and the first clamping portion 11 may be a card bent toward the opening of the recessed hole 112. Hook structure. Since the rod portion 13 and the first clamping portion 11 have the recessed holes 112, the rod portion 13 and the first clamping portion 11 can be folded inwardly, so as to facilitate the user to the rod portion 13 and the first clamping portion 11 It is inserted into the reflection sheet through hole 23 and the back plate through hole 33.
  • the cushion pad 14 is disposed on the first clamping surface 111, the second clamping surface 121, and the peripheral side surface 131.
  • the user when the user wants to fix the reflective sheet 2 on the back sheet 3 , firstly, the user connects the bottom surface 22 of the reflective sheet with the reflective sheet through hole 23 and the back plate through hole 33 .
  • the top surface 31 of the board is in face-to-face contact.
  • the user inserts the rod portion 13 and the first holding portion 11 into the reflection sheet through hole 23 and the back plate through hole 33 in the direction of the arrow 4 in FIG. 1 . Since the recessed hole 112 provides a buffer space for bending and deforming the rod portion 13 and the first clamping portion 11 toward the center of the opening of the recessed hole 112, the user can easily insert the rod portion 13 and the first clamping portion 11 into the buffer space.
  • the reflection sheet through hole 23 and the back plate through hole 33 are formed. Then, as shown in FIG. 2, when the first clamping portion 11 passes through the reflective through hole 23 and the back plate through hole 33, and the rod portion 13 is located in the back plate through hole 33 and the reflection plate through hole 23, the first clamp The holding portion 11 and the second clamping portion 12 are respectively exposed on the bottom surface 32 of the backing plate and the top surface 21 of the reflecting sheet. At this time, the cushion pad 14 is in contact with a portion of the bottom surface 32 of the back plate and a portion of the top surface 21 of the reflective sheet. The first clamping portion 11 and the second clamping portion 12 sandwich the back sheet 3 of the reflective sheet 2 up to the fixed reflective sheet. 2 The purpose of the backing plate 3.
  • the technology of the embodiment is not limited thereto.
  • the first clamping portion 11, the second clamping portion 12 and the rod portion 13 are integrally formed, like the same dog bone structure.
  • the buffer pad 14 is located in the back plate through hole 33 and the reflection plate through hole 23 respectively, and is in contact with a part of the back plate bottom surface 32 and a part of the reflection sheet top surface 21, and the fixing component of the backlight module
  • the material of 1 may be a po1y methylmethacry1ate (PMMA) or a white material
  • the material of the cushion 14 is a plastic material such as rubber.
  • the height H1 of the rod portion 13 is equal to or slightly smaller than the sum of the thickness H2 of the reflection sheet 2 and the thickness H3 of the back sheet 3.
  • the outer shape of the cross section of any of the rod portions 13 in the normal direction of the arrow 4 corresponds to the opening shape of the reflection piece through hole 23 and the opening shape of the back plate through hole 33.
  • the outer shape of the cross section of any of the rod portions 13 in the normal direction of the arrow 4 is also circular.
  • the second clamping portion 12 further has a clamping portion top surface 122 opposite to the second clamping surface 121.
  • the clamping portion top surface 122 is an opening facing the second clamping surface 121. Bowl noodles or hemispheres. That is, the second clamping portion 12 is an inverted bowl-shaped structure or an upper hemispherical structure.
  • the fixing component 1 of the light-emitting module of the present application can overcome the problems of the prior art by the design of the first clamping portion 11, the second clamping portion 12 and the rod portion 13, so that the reflection sheet 2 can be It is fixed on the backboard 3 to improve the overall illumination quality of the backlight module, and avoids the phenomenon that the liquid crystal display is uneven in color due to the unevenness of the reflective sheet 2. Further, by the design of the cushion pad 14 on the first clamping surface 111, the second clamping surface 121, and the peripheral side surface 131, it is possible to prevent the reflection sheet 2 and the back sheet 3 from being damaged during the clamping and fixing.
  • the fixing component 5 of the backlight module is used to fix the reflective sheet 2 on the backboard 3, which greatly eliminates the design flaw of the conventional adhesive sheet to adhere the reflective sheet to the backboard.
  • the structure and arrangement of the reflection sheet 2 and the back sheet 3 are the same as those described above, and are not described herein again.
  • the fixing component 5 of the backlight module includes a first fixing portion 51, a second fixing portion 52, and a rod portion 53.
  • the rod portion 53 connects the first fixing portion 51 and the second fixing portion 52.
  • the second fixing portion 52 has a screw hole 521.
  • the rod portion 53 is provided with a threaded structure 531, and is screwed to the screw hole 521 to fix the first fixing portion 51 and the second fixing portion 52 to the reflection sheet 2 and the back plate 3.
  • the first fixing portion 51 may be configured as a cover to seal the reflection sheet through hole 23.
  • the cover body has a cover top surface 512 and a cover bottom surface 513 opposite to the cover top surface 512.
  • the cover bottom surface 513 faces the reflective sheet top surface 21, and the cover top surface 512 is a hemisphere with an opening facing the cover bottom surface 513. Structure.
  • the user when the user wants to fix the reflection sheet 2 on the back sheet 3, first, the user allows the reflection sheet bottom surface 22 and the back in such a manner that the reflection sheet through hole 23 and the back plate through hole 33 correspond to each other.
  • the top surface 31 of the board is in face-to-face contact.
  • the user inserts the rod portion 53 and the first fixing portion 51 into the reflection piece through hole 23 and the back plate through hole 33 in the direction of the arrow 4 in FIG. 3 . Then, as shown in FIG.
  • the first fixing portion 51 passes through the reflection sheet through hole 23 and the back plate through hole 33, and the rod portion 53 is located in the back plate through hole 33 and the reflection sheet through hole 23, the first fixing portion The 51 and the second fixing portion 52 are respectively exposed on the bottom surface 32 of the back plate and the top surface 21 of the reflection sheet.
  • the second fixing portion 52 has a screw hole 521, and the screw hole 521 and the screw structure 531 are screwed to each other, so that the first fixing portion 51 and the second fixing portion 52 fix the reflection sheet. 2 and back panel 3.
  • the first fixing portion 51 and the rod portion 53 are integrally formed; the first fixing portion 51 has a first fixing surface 511, The second fixing portion 52 has a second fixing surface 522 facing the first fixing surface 511.
  • the first fixing surface 511 and the second fixing surface 522 are used when the rod portion 53 is located in the back plate through hole 33 and the reflection plate through hole 23.
  • the surface of the back plate 32 and a portion of the top surface 21 of the reflective sheet are respectively in contact with each other, and the material of the fixing member 5 of the backlight module may be transparent acrylic (PMMA) or white material.
  • the fixing component 5 of the light-emitting module of the present application is designed by the first fixing portion 51 , the second fixing portion 52 , and the rod portion 53 , wherein the second fixing portion 52 has a screw hole 521 and a rod.
  • the portion 53 is provided with a threaded structure 531 and is screwed to the screw hole 521 to overcome the problems of the prior art, so that the reflection sheet 2 is fixed on the back plate 3 to improve the overall illumination quality of the backlight module, and the liquid crystal display is prevented from being uneven due to the reflection sheet. Produces a phenomenon in which the picture color is uneven.
  • the screw structure 531 being screwed to the screw hole 521, the tightness of the screw can be adjusted to avoid damage to the reflection sheet 2 and the back plate 3 due to unevenness of the fixing force.
  • the fixing structure 6 of the backlight module includes a reflective sheet 61 and a back plate 62 .
  • the reflective sheet 61 has a reflective top surface 612 and a reflective bottom surface 613.
  • the back surface 62 has an opposite back surface 622 and a back surface 623.
  • Two positioning members 611 are respectively disposed on both sides of the bottom surface 613 of the reflection sheet.
  • the back plate 62 is connected to the reflection sheet 61.
  • the two sides of the top surface 622 of the back plate are provided with two engaging portions 621.
  • the positioning member 611 is engaged with the engaging portion 621 so that the reflection sheet 61 and the back plate are opposite. 62 are fixed to each other.
  • the user wants to fix the reflective sheet 61 to the backing plate 62
  • the user brings the reflective sheet bottom surface 613 into face-to-face contact with the backing plate top surface 622.
  • the user inserts the positioning member 611 into the engaging portion 621 in the direction of the arrow 4 of FIG.
  • the positioning member 611 is engaged with the engaging portion 621 to achieve the purpose of fixing the reflecting sheet 61 and the backing plate 62 to each other.
  • the positioning member 611 and the reflection sheet 61 are integrally formed; the positioning member 611 is a protruding member 611', and the engaging portion 621 is a
  • the recessed portion 621' has a telescopic elastic member 614.
  • the recessed portion 621' is provided with a groove 624.
  • the sheet 61 is a single-transmissive reflective sheet; and the backing plate 62 is made of a heat-dissipating material (for example, aluminum), which increases the heat dissipation path of the backlight module, thereby improving heat dissipation efficiency.
  • a heat-dissipating material for example, aluminum
  • the fixing structure 6 of the backlight module of the present application is provided with two positioning members 611 on two sides of the reflective sheet 61 , and two engaging portions 621 are disposed on two sides of the back plate 62 .
  • the positioning member 611 is engaged with the engaging portion 621 to overcome the problems of the prior art, so that the reflective sheet 61 and the backing plate 62 are fixed to each other to improve the overall light quality of the backlight module, and the liquid crystal display is prevented from being reflected by the reflective sheet.
  • Flatness produces a phenomenon in which the picture color is uneven.

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

Abstract

La présente invention concerne une structure de fixation (6) d'un module de rétroéclairage, comprenant une feuille réfléchissante (61) et une plaque arrière (62). Deux pièces de positionnement (611) sont respectivement disposées sur deux côtés de la feuille réfléchissante (61) ; la plaque arrière (62) est reliée à la feuille réfléchissante (61) ; deux parties de serrage (621) sont disposées sur deux côtés de la plaque arrière (62) ; les pièces de positionnement (611) sont serrées de manière correspondante sur les parties de serrage (621) de telle sorte que la feuille réfléchissante (61) et la plaque arrière (62) soient fixées l'une à l'autre. L'invention concerne également un procédé de fabrication de la structure de fixation (6) du module de rétroéclairage.
PCT/CN2017/115685 2017-11-14 2017-12-12 Structure de fixation du module de rétroéclairage et son procédé de fabrication WO2019095475A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711118755.1A CN107748464A (zh) 2017-11-14 2017-11-14 背光模块的固定结构及其制造方法
CN201711118755.1 2017-11-14

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WO2019095475A1 true WO2019095475A1 (fr) 2019-05-23

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Publication number Priority date Publication date Assignee Title
CN107678211A (zh) * 2017-11-14 2018-02-09 惠科股份有限公司 背光模块及背光模块的固定元件
CN107678210A (zh) * 2017-11-14 2018-02-09 惠科股份有限公司 背光模块及背光模块的固定元件
KR102659731B1 (ko) * 2018-09-20 2024-04-23 삼성디스플레이 주식회사 표시장치

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