CN114779529A - Novel frameless backlight module - Google Patents

Novel frameless backlight module Download PDF

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Publication number
CN114779529A
CN114779529A CN202210490459.9A CN202210490459A CN114779529A CN 114779529 A CN114779529 A CN 114779529A CN 202210490459 A CN202210490459 A CN 202210490459A CN 114779529 A CN114779529 A CN 114779529A
Authority
CN
China
Prior art keywords
rubber frame
back plate
light guide
reflecting layer
backlight module
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
CN202210490459.9A
Other languages
Chinese (zh)
Inventor
商学华
韩智星
陈宽
潘宗强
张永辉
贺成良
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.)
Chongqing Hanbo Photoelectric Co ltd
Original Assignee
Chongqing Hanbo Photoelectric Co 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 Chongqing Hanbo Photoelectric Co ltd filed Critical Chongqing Hanbo Photoelectric Co ltd
Priority to CN202210490459.9A priority Critical patent/CN114779529A/en
Publication of CN114779529A publication Critical patent/CN114779529A/en
Pending legal-status Critical Current

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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
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light 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
    • G02B6/0081—Mechanical 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
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses

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

Abstract

A novel frameless backlight module comprises a back plate, a rubber frame, a film material group, a light shielding layer, a bonding layer, a reflecting layer and a light guide plate; the rubber frame is arranged in the back plate, the outer side face of the rubber frame is fixed on the inner side face of the rubber frame through the bonding layer, the bottom of the back plate is provided with a reflecting layer, the reflecting layer is positioned in the rubber frame, the reflecting layer is provided with a light guide plate, and the light guide plate is provided with a film material group; the upper part of the rubber frame extends outwards to form an extension part, a hidden interval is formed between the extension part and the outer side surface of the back plate, and the side edge of the back plate is positioned in the hidden interval. According to the invention, the upper part of the rubber frame extends outwards to form the extending part, the hidden area is formed between the extending part and the outer side surface of the back plate, and the side edge of the back plate is arranged in the hidden area, so that the bad phenomenon of the inward collapse of the rubber frame is effectively solved.

Description

Novel frameless backlight module
Technical Field
The invention relates to the field of backlight modules, in particular to a novel frameless backlight module.
Background
The liquid crystal display device has many advantages such as thin body, power saving, low radiation, and the like, and is widely used. Most of the liquid crystal display devices in the existing market are backlight liquid crystal display devices, which include a liquid crystal panel and a backlight module. The liquid crystal panel has the working principle that liquid crystal molecules are placed in two parallel glass substrates, a plurality of vertical and horizontal fine electric wires are arranged between the two glass substrates, the liquid crystal molecules are controlled to change directions by electrifying or not, and light rays of the backlight module are refracted out to generate pictures. Since the liquid crystal panel does not emit light, the backlight module is one of the key components of the liquid crystal display device because the light source provided by the backlight module is needed to normally display images.
The existing backlight module rubber frame is assembled in the inner frame of the back plate, as shown in fig. 1, the backlight module rubber frame comprises the following components, namely, the back plate, the rubber frame, a film material group, a shading adhesive tape, a rubber frame fixing adhesive tape, a reflective sheet and a light guide plate, and by adopting the mode, the problems are as follows:
the rubber frame is arranged in the back plate, and the phenomenon that the Panel cannot be placed in the Panel retaining wall when the MDL is thrown into the rubber frame causes frequent alarm of equipment, influences normal throwing of the module and is complained by customers.
The placement time of the rubber frame is too long, or the rubber frame is sunken due to shrinkage of the subsequent rubber frame and reduction of the viscosity of the adhesive tape, so that great influence is generated on the subsequent module screen covering.
Disclosure of Invention
The invention aims at the problem that in the prior art, the placement time of the rubber frame is too long, or the rubber frame is sunken due to the shrinkage of the subsequent rubber frame and the reduction of the viscosity of the adhesive tape, so that the subsequent module group covers the screen greatly.
The invention provides a novel frameless backlight module, which has the following specific technical scheme:
the utility model provides a novel no frame backlight unit which characterized in that: the backlight module comprises a back plate, a rubber frame, a film material group, a shading layer, a bonding layer, a reflecting layer and a light guide plate;
the rubber frame is arranged in the back plate, the outer side face of the rubber frame is fixed on the inner side face of the rubber frame through the bonding layer, the bottom of the back plate is provided with a reflecting layer, the reflecting layer is positioned in the rubber frame, the reflecting layer is provided with a light guide plate, and the light guide plate is provided with a membrane material group;
the upper part of the rubber frame extends outwards to form an extension part, a hidden interval is formed between the extension part and the outer side surface of the back plate, and the side edge of the back plate is positioned in the hidden interval.
To better implement the invention, the method can further comprise the following steps: the light shielding layer is located on the upper surface of the extending portion.
The beneficial effects of the invention are as follows:
the design that the rubber frame is laterally attached to the inner wall of the back plate has the advantages that firstly, the quality yield of the backlight module is improved, the production line efficiency is improved, and the cost is reduced.
Secondly, the upper part of the rubber frame extends outwards to form an extension part, a hidden interval is formed between the extension part and the outer side surface of the back plate, and the side edge of the back plate is arranged in the hidden interval, so that the bad phenomenon of the inward collapse of the rubber frame is effectively solved.
Thirdly, the phenomenon that Panel can not be placed in the Panel retaining wall is effectively prevented, and the quality of MDL is prevented from being improved.
Fourthly, the side edge of the rubber frame is hidden, so that the module is lighter and thinner.
Drawings
FIG. 1 is a prior art block diagram;
FIG. 2 is an overall structural view of the present invention;
the drawings in the figures are illustrated as such,
a rubber frame 1;
a back plate 2;
a membrane material group 3;
a light-shielding tape 4;
fixing the adhesive tape 5;
a reflective sheet 6;
a light guide plate 7;
an extension 8;
the section 9 is hidden.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1:
a novel frameless backlight module comprises a back plate 2, a rubber frame 1, a film material group 3, a shading adhesive tape 4, a fixing adhesive tape 5, a reflector plate 6 and a light guide plate 7;
the rubber frame 1 is arranged in the back plate 2, the outer side surface of the rubber frame 1 is fixed on the inner side surface of the rubber frame 1 through a fixing adhesive tape 5, the bottom of the back plate 2 is provided with a reflector plate 6, the reflector plate 6 is positioned in the rubber frame 1, the reflector plate 6 is provided with a light guide plate 7, and the light guide plate 7 is provided with a film material group 3;
the upper portion of the rubber frame 1 extends outward to form an extending portion 8, a hidden area 9 is formed between the extending portion 8 and the outer side surface of the back plate 2, and the side edge of the back plate 2 is located in the hidden area 9.
The working principle of the invention is as follows:
the upper portion of gluing frame 1 outwards extends and is formed with extension 8, this extension 8 is located the top of 2 frames of backplate, glue 1 inboard and paste on 2 inner walls of backplate, will glue frame 1 and backplate 2 fixed, do not have the design of frame, do not have the barricade all around, directly cover the panel on top shading sticky tape 4 with the panel, the panel guige undersize can not appear, lead to the panel rupture, according to this kind of design, can do super light thin module, can also solve the module light leak and glue frame 1 problem such as cave in
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (2)

1. The utility model provides a novel no frame backlight unit which characterized in that: the backlight module comprises a back plate, a rubber frame, a film material group, a shading layer, a bonding layer, a reflecting layer and a light guide plate;
the rubber frame is arranged in the back plate, the outer side face of the rubber frame is fixed on the inner side face of the rubber frame through the bonding layer, the bottom of the back plate is provided with a reflecting layer, the reflecting layer is positioned in the rubber frame, the reflecting layer is provided with a light guide plate, and the light guide plate is provided with a film material group;
the upper part of the rubber frame extends outwards to form an extension part, a hidden interval is formed between the extension part and the outer side surface of the back plate, and the side edge of the back plate is positioned in the hidden interval.
2. The novel frameless backlight module defined in claim 1, wherein: the light shielding layer is located on the upper surface of the extending portion.
CN202210490459.9A 2022-05-07 2022-05-07 Novel frameless backlight module Pending CN114779529A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210490459.9A CN114779529A (en) 2022-05-07 2022-05-07 Novel frameless backlight module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210490459.9A CN114779529A (en) 2022-05-07 2022-05-07 Novel frameless backlight module

Publications (1)

Publication Number Publication Date
CN114779529A true CN114779529A (en) 2022-07-22

Family

ID=82435763

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210490459.9A Pending CN114779529A (en) 2022-05-07 2022-05-07 Novel frameless backlight module

Country Status (1)

Country Link
CN (1) CN114779529A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103955086A (en) * 2014-04-17 2014-07-30 京东方科技集团股份有限公司 Liquid crystal module
CN109387969A (en) * 2018-11-30 2019-02-26 福建捷联电子有限公司 A kind of Rimless display
CN110082946A (en) * 2019-05-29 2019-08-02 重庆翰博光电有限公司 A kind of backboard, backlight module and the display module of no glue frame backlight module
CN111650770A (en) * 2020-07-07 2020-09-11 蚌埠国显科技有限公司 No frame LCM module and super narrow display

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103955086A (en) * 2014-04-17 2014-07-30 京东方科技集团股份有限公司 Liquid crystal module
CN109387969A (en) * 2018-11-30 2019-02-26 福建捷联电子有限公司 A kind of Rimless display
CN110082946A (en) * 2019-05-29 2019-08-02 重庆翰博光电有限公司 A kind of backboard, backlight module and the display module of no glue frame backlight module
CN111650770A (en) * 2020-07-07 2020-09-11 蚌埠国显科技有限公司 No frame LCM module and super narrow display

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