WO2021135519A1 - Module de rétroéclairage et dispositif d'affichage à cristaux liquides - Google Patents

Module de rétroéclairage et dispositif d'affichage à cristaux liquides Download PDF

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Publication number
WO2021135519A1
WO2021135519A1 PCT/CN2020/122026 CN2020122026W WO2021135519A1 WO 2021135519 A1 WO2021135519 A1 WO 2021135519A1 CN 2020122026 W CN2020122026 W CN 2020122026W WO 2021135519 A1 WO2021135519 A1 WO 2021135519A1
Authority
WO
WIPO (PCT)
Prior art keywords
middle frame
back plate
threaded
backlight module
hole
Prior art date
Application number
PCT/CN2020/122026
Other languages
English (en)
Chinese (zh)
Inventor
弋春城
马洪杰
Original Assignee
深圳Tcl新技术有限公司
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 深圳Tcl新技术有限公司 filed Critical 深圳Tcl新技术有限公司
Publication of WO2021135519A1 publication Critical patent/WO2021135519A1/fr

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Classifications

    • 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

Definitions

  • This application relates to the field of liquid crystal display technology, and in particular to a backlight module and a liquid crystal display device.
  • the screw holes on one side of the middle frame are through holes.
  • the backplane and the middle frame are aligned and assembled, and then the screws are tightened from the outside of the backplane.
  • the display screen there is a risk of scratching the display screen, and it is easy to cause the middle frame to be scratched during the process of tightening the screws, and since the whole of the back plate and the middle frame protrude outward, the torque to tighten the screws from the outside is too large to lock the lock
  • the back plate and the middle frame are assembled, the outer surface of the back plate is exposed to the screw caps, which affects Beautiful.
  • the main purpose of this application is to propose a backlight module and a liquid crystal display device, which aims to solve the problem of using screws to tighten the screws from the outside of the back plate during the assembly process of the back plate and the middle frame of the liquid crystal display device in the prior art. Problems such as scratching the display screen and causing local deformation of the middle frame and backplane.
  • the present application proposes a backlight module, the backlight module includes a back plate and a middle frame, the middle frame covers the edge of the back plate to shield the edge of the back plate;
  • the edge of the back plate is provided with a threaded through hole
  • the inner side of the middle frame is provided with a threaded blind hole at a position corresponding to the threaded through hole, and the threaded through hole and the threaded blind hole are connected by a threaded fastener to connect the
  • the middle frame and the back plate are detachably connected.
  • the middle frame includes a middle frame body and a first extension part connected to the outside of the middle frame body, a mounting groove is formed between the first extension part and the middle frame body, and the threaded blind hole It is arranged on the inner side of the first extension part, and the edge of the back plate is placed in the installation groove, and is detachably connected to the first extension part by the threaded fastener.
  • the middle frame body is further provided with a second extension part, and the first extension part, the middle frame body and the second extension part enclose the mounting groove; the back plate A buckle is formed on the edge of the buckle, and the buckle is engaged with the mounting groove.
  • the buckle includes a first clamping section, a connecting section, and a second clamping section that are connected in sequence, the first clamping section abuts against the first extension, and the thread A through hole is opened on the first connecting section, the connecting section is pressed against the middle frame main body, and the second connecting section is pressed against the second extension part.
  • the sky side and the left and right sides of the back plate are covered with the middle frame, and the sky side and the left and right sides of the back plate are connected with the middle frame through the threaded fasteners. Disconnect the connection.
  • the backlight module further includes a diffuser plate, the diffuser plate is arranged inside the back plate, a support block is arranged on the ground side of the back plate, and the support block abuts against the diffuser plate. Connect and make the diffuser plate.
  • the support block is formed by bending the ground side of the back plate.
  • the number of the support blocks is multiple, and the multiple support blocks are arranged at intervals along the extension direction of the ground side of the backplane.
  • the back plate and the middle frame are both integrally formed parts.
  • the application also proposes a liquid crystal display device, which includes the above-mentioned backlight module.
  • the inner side of the middle frame is tapped to form a threaded blind hole.
  • the back plate is first laid flat, and then the middle frame is along the left and right sides of the back plate. Push in the entire position until the threaded blind holes on the middle frame are aligned with the threaded through holes on the back plate, and finally use a screwdriver to lock the back plate and the middle frame.
  • the backlight module of the present application completes the assembly of the backplane and the middle frame before the display screen is installed, which effectively avoids the risk of the screen being scratched by the screws.
  • the outer surface of the backplane has no
  • the exposed screw caps have a simple and beautiful appearance, and also prevent the risk of the middle frame being scratched by the screws.
  • the screws are tightened from the inner side of the back plate, which conforms to the protruding structure of the back plate and the middle frame to the outside of the back plate. The assembly method is reasonable.
  • the outer side of the back panel is smooth and tidy, effectively preventing the local deformation of the middle frame and the back panel, ensuring that the overall force of the middle frame and the back panel is uniform, and avoiding the risk of the back panel and the middle frame being easily damaged due to uneven forces, thereby improving The service life of the liquid crystal display device is improved.
  • FIG. 1 is a three-dimensional schematic diagram of the inner side of a backlight module according to an embodiment of the application
  • Fig. 2 is an enlarged schematic diagram of area A in Fig. 1;
  • FIG. 3 is a perspective schematic diagram of the outer side of a backlight module according to an embodiment of the application.
  • FIG. 4 is a schematic cross-sectional view of a backlight module according to an embodiment of the application.
  • FIG. 5 is a three-dimensional schematic diagram of the inner side of a backlight module according to an embodiment of the application.
  • Fig. 6 is an enlarged schematic diagram of area B in Fig. 5.
  • This application proposes a backlight module.
  • the backlight module includes a back plate 1 and a middle frame 2.
  • the middle frame 2 covers the edge of the back plate 1 to cover the edge of the back plate 1; the edge of the back plate 1 A threaded through hole 11 is provided.
  • the inner side of the middle frame 2 is provided with a threaded blind hole 21 at a position corresponding to the threaded through hole 11.
  • the threaded through hole 11 and the threaded blind hole 21 are connected by threaded fasteners to connect the middle frame 2 and the back plate 1 Removable connection.
  • the threaded fastener is a screw 3.
  • the inner side of the middle frame 2 is tapped to form a threaded blind hole 21.
  • the back plate 1 is first laid flat, and then the middle frame The frame 2 is pushed in along the left and right sides of the back plate 1 until the threaded blind holes 21 on the middle frame 2 are aligned with the threaded through holes 11 on the back plate 1, and finally the back plate 1 and the middle frame 2 are connected with screws 3 Lock tightly.
  • the backlight module of this embodiment assembles the back plate 1 and the middle frame 2, which effectively avoids the risk of scratching the screen by the screws 3.
  • the middle frame 2 includes a middle frame body 223 and a first extension part 221 connected to the middle frame body 223.
  • a mounting groove 22 is formed between the first extension part 221 and the middle frame body 223, and the threaded blind hole 21 is opened in The first extension 221, the edge of the back plate 1 is placed in the mounting groove 22, and is detachably connected to the first extension 221 by threaded fasteners.
  • the first extension 221 is the wall of the mounting groove 22
  • the middle frame body 223 is the bottom of the mounting groove 22
  • the threaded blind hole 21 is opened on the first extension 221
  • the threaded through hole 11 is opened at the edge of the back plate 1.
  • the outer edge of the back plate 1 is pushed in close to the first extension 221, so that the edge of the back plate 1 is received in the mounting groove 22, Until the threaded through holes 11 on the edge of the back plate 1 are aligned with the threaded blind holes 21 on the first extension 221, the screws 3 are tightened from the inner side of the back plate 1, and the structure is reasonable, which facilitates the assembly of the middle frame 2 and the back plate 1.
  • the middle frame main body 223 is further provided with a second extension portion 222.
  • the first extension portion 221, the middle frame main body 223 and the second extension portion 222 enclose a mounting groove 22; the edge of the back plate 1 is formed with a buckle 12, The buckle 12 is engaged with the installation slot 22 in a snap fit.
  • the first extension 221 and the second extension 222 together form the groove walls on both sides of the installation groove 22,
  • the middle frame main body 223 is the groove bottom of the installation groove 22, and the edge of the back plate 1 is formed by bending
  • the buckle 12 matched with the mounting groove 22 aligns the mounting groove 22 with the buckle 12 and directly pushes the middle frame 2 onto the back plate 1 to facilitate the alignment of the back plate 1 and the middle frame 2 and improve the assembly efficiency.
  • the buckle 12 includes a first clamping section 121, a pole-connecting section 123, and a second clamping section 122 connected in sequence.
  • the first clamping section 121 abuts against the first extension 221 and has a threaded through hole. 11 is opened on the first clamping section 121, the connecting pole section 123 abuts against the middle frame main body 223, and the second clamping section 122 abuts against the second extension 222.
  • the buckle 12 is in a tight fit with the mounting groove 22.
  • the first extension 221 and the first clamping section 121 are always in tight fit with each other, ensuring the back plate 1 The overall flatness.
  • the sky side and the left and right sides of the back plate 1 are covered with the middle frame 2, and the sky and left and right sides of the back plate 1 are detachably connected to the middle frame 2 by threaded fasteners.
  • the upper side and the left and right sides of the back plate 1 are provided with a plurality of threaded through holes 11 arranged at intervals, and the inner side of the middle frame 2 is provided with threaded blind holes corresponding to the multiple threaded through holes 11 twenty one.
  • the back plate 1 and the middle frame 2 When assembling the back plate 1 and the middle frame 2, first align the mounting slots 22 on the left and right sides of the middle frame 2 with the buckles 12 on the left and right sides of the back plate 1, and then directly align the middle frame 2 along the left and right sides of the back plate 1. Push into the back plate 1, and then clamp the mounting groove 22 on the upper side of the middle frame 2 to the buckle 12 on the upper side of the upper back plate 1, and finally tighten the multiple threaded through holes 11 and threaded blind holes 21 with screws 3 respectively , The assembly of the backplane 1 and the middle frame 2 is completed, the assembly is simple and convenient, and the middle frame 2 and the backplane 1 are closely matched, which improves the overall stability of the backlight module.
  • the backplane module further includes a diffuser plate 4, the diffuser plate 4 is arranged on the inner side of the backplate 1, a support block 13 is arranged on the ground side of the backplate 1, and the support block 13 abuts against the diffuser plate 4 to form a diffuser Board 4.
  • the back plate 1 is provided with a support block 13 for supporting the diffuser plate 4 on the lower side.
  • the diffuser plate 4 can be directly lapped on the support block 13, without the need for a lower middle frame assembly, which saves you While lowering the middle frame assembly, the assembly process is simplified.
  • the reduction of structural parts not only makes the assembly process of the backlight module simpler, but also reduces the cumulative error of assembly, improves assembly efficiency, and saves material costs.
  • the supporting block 13 is formed by bending the ground side of the back plate 1. As shown in Figures 5 and 6, the bottom edge of the 13-position backplane 1 of the support block is bent toward the inner side of the backplane 1, and the structure design is reasonable. There is no need to add new assembly components, and only the backplane 1 needs to be modified. Convenient for manufacturing and installation.
  • the number of support blocks 13 is multiple, and the multiple support blocks 13 are arranged at intervals along the extension direction of the ground side of the back plate 1.
  • the multiple support blocks 13 support the diffuser plate 4 so that the multiple support blocks 13 are evenly stressed, avoiding the risk of a single support block 13 being broken due to excessive force, while ensuring the balance of the diffuser plate 4, and the structure design is reasonable.
  • the back plate 1 and the middle frame 2 are both integrally formed parts. It facilitates the manufacture of the backplane 1 and the middle frame 2. The installation can be completed by directly pushing the middle frame 2 into the backplane 1, which reduces the difficulty of assembling the backlight module and at the same time reduces the cumulative error of the backlight module assembly. Improve the overall stability of the backlight module.
  • the application also proposes a liquid crystal display device, which includes the above-mentioned backlight module. Since the liquid crystal display device adopts all the technical solutions of all the foregoing embodiments, it has at least all the beneficial effects brought about by the technical solutions of the foregoing embodiments, which will not be repeated here.

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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)
  • Liquid Crystal (AREA)

Abstract

L'invention concerne un module de rétroéclairage et un dispositif d'affichage à cristaux liquides. Le module de rétroéclairage comprend un fond de panier (1) et un cadre intermédiaire (2), le cadre intermédiaire (2) recouvre le bord du fond de panier (1) de manière à protéger le bord du fond de panier (1) ; et un trou traversant fileté (11) est disposé dans le bord du fond de panier (1), un trou borgne fileté (21) est disposé dans la position sur un côté interne du cadre intermédiaire (2) qui correspond au trou traversant fileté (11), et le trou traversant fileté (11) et le trou borgne fileté (21) sont reliés au moyen d'un élément de fixation fileté (3) pour relier de manière amovible le cadre intermédiaire (2) au fond de panier (1).
PCT/CN2020/122026 2019-12-31 2020-10-20 Module de rétroéclairage et dispositif d'affichage à cristaux liquides WO2021135519A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201922484464.5U CN211264025U (zh) 2019-12-31 2019-12-31 背光模组及液晶显示装置
CN201922484464.5 2019-12-31

Publications (1)

Publication Number Publication Date
WO2021135519A1 true WO2021135519A1 (fr) 2021-07-08

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Application Number Title Priority Date Filing Date
PCT/CN2020/122026 WO2021135519A1 (fr) 2019-12-31 2020-10-20 Module de rétroéclairage et dispositif d'affichage à cristaux liquides

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CN (1) CN211264025U (fr)
WO (1) WO2021135519A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211264025U (zh) * 2019-12-31 2020-08-14 深圳Tcl新技术有限公司 背光模组及液晶显示装置
CN112068352A (zh) * 2020-09-04 2020-12-11 深圳创维－Rgb电子有限公司 背光模组及液晶模组
CN113299189A (zh) * 2021-05-14 2021-08-24 江苏毅昌科技有限公司 一种无边框模组及显示装置
CN115413154A (zh) * 2021-05-28 2022-11-29 华为技术有限公司 电子设备及电子设备的组装方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103995384A (zh) * 2014-05-05 2014-08-20 青岛海信电器股份有限公司 一种液晶模组及显示装置
CN106154615A (zh) * 2016-09-22 2016-11-23 青岛海信电器股份有限公司 一种液晶模组及液晶显示装置
US20160342015A1 (en) * 2015-05-18 2016-11-24 Samsung Display Co., Ltd. Display device having narrow bezel structure
CN106444123A (zh) * 2016-09-22 2017-02-22 青岛海信电器股份有限公司 一种液晶模组及液晶显示装置
CN208000440U (zh) * 2018-01-24 2018-10-23 北京京东方显示技术有限公司 液晶模组及显示装置
CN110361880A (zh) * 2019-07-12 2019-10-22 深圳市万普拉斯科技有限公司 显示模组及其组装方法、显示装置
CN211264025U (zh) * 2019-12-31 2020-08-14 深圳Tcl新技术有限公司 背光模组及液晶显示装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103995384A (zh) * 2014-05-05 2014-08-20 青岛海信电器股份有限公司 一种液晶模组及显示装置
US20160342015A1 (en) * 2015-05-18 2016-11-24 Samsung Display Co., Ltd. Display device having narrow bezel structure
CN106154615A (zh) * 2016-09-22 2016-11-23 青岛海信电器股份有限公司 一种液晶模组及液晶显示装置
CN106444123A (zh) * 2016-09-22 2017-02-22 青岛海信电器股份有限公司 一种液晶模组及液晶显示装置
CN208000440U (zh) * 2018-01-24 2018-10-23 北京京东方显示技术有限公司 液晶模组及显示装置
CN110361880A (zh) * 2019-07-12 2019-10-22 深圳市万普拉斯科技有限公司 显示模组及其组装方法、显示装置
CN211264025U (zh) * 2019-12-31 2020-08-14 深圳Tcl新技术有限公司 背光模组及液晶显示装置

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