CN106647027A - Backlight module and liquid crystal display module - Google Patents

Backlight module and liquid crystal display module Download PDF

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Publication number
CN106647027A
CN106647027A CN201611181223.8A CN201611181223A CN106647027A CN 106647027 A CN106647027 A CN 106647027A CN 201611181223 A CN201611181223 A CN 201611181223A CN 106647027 A CN106647027 A CN 106647027A
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CN
China
Prior art keywords
support arm
light guide
guide plate
center
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.)
Granted
Application number
CN201611181223.8A
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Chinese (zh)
Other versions
CN106647027B (en
Inventor
俞刚
李德华
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.)
TCL Huaxing Photoelectric Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
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Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to CN201611181223.8A priority Critical patent/CN106647027B/en
Publication of CN106647027A publication Critical patent/CN106647027A/en
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Publication of CN106647027B publication Critical patent/CN106647027B/en
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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
    • G02F1/133615Edge-illuminating devices, i.e. illuminating from the side
    • 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

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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

The present invention provides a backlight module comprising a middle frame, a backplane disposed at the lower end of the middle frame, a reflector plate disposed in the middle frame, a light guide plate, and an optical film, wherein at least one snap-in component for fixing the light guide plate in the middle frame is disposed at the edge of the light guide plate, and an engagement part is disposed on the side surface of the middle frame that is opposite to the light guide plate; an insertion part is disposed on the surface of the side of the snap-in component that is opposite to the engagement part, which corresponds to the engagement part in position and is inserted in the engagement part; and an embodiment part is disposed at the side of the snap-in component that is opposite to the light guide plate, and the edge of the light guide plate is inserted in the engagement part. The present invention also provides a liquid crystal display module that comprises the backlight module. Compared with the prior art, limiting of the light guide plate in the Z-axis direction is achieved with guarantee on fixation of the light guide plate in limited space and improvement in reasonable reliability of module design; and also, the homogeneity of light from the backlight module is also ensured.

Description

A kind of backlight module and liquid crystal display module
Technical field
The present invention relates to a kind of liquid crystal panel module technology, particularly a kind of backlight module and liquid crystal display module.
Background technology
At present, for ultra-thin liquid crystal display die group, due to thickness direction (Z-direction) limited space, therefore need structure Be designed to it is compacter, but in current structure design, assembled or by the way of traditional, i.e., first panel put It is placed on workbench, then contraposition installs center, places into and cover again after blooming piece, light guide plate, sheet emitting backboard, fixed base Plate, finally installs front frame, and this is easy for the problem for causing annexation unstable, and the connection of light guide plate and center occurs Position has differences, and causes the situation that light is uneven.
The content of the invention
To overcome the deficiencies in the prior art, the present invention provides a kind of backlight module and liquid crystal display module, so as to realize To light guide plate and the accurate positioning of center realization in ultra-thin liquid crystal display die group, and simple structure.
The invention provides a kind of backlight module, including center, the backboard located at center lower end, the reflection in center Piece, light guide plate and blooming piece, are provided with least one for light guide plate to be fixed on into center on the edge of the light guide plate In fastener, junction surface is provided with relative with light guide plate side side in center, the fastener is relative with junction surface A side surface be provided with insertion section, the insertion section is corresponding with junction surface position, insertion section insertion junction surface in, engaging The side relative with light guide plate is provided with embedded division on part, in the edge insertion embedded division of light guide plate.
Further, the fastener is " Contraband " shape structure, and it includes two first support arms parallel with the surface of light guide plate And the second support arm of two first support arms of connection, second support arm is vertically arranged with first support arm, and second support arm is located at two the Near one end of center, by being formed after two first support arms and second support arm connection, insertion section is located at second to embedded division to one support arm On the support arm side side relative with center.
Further, the insertion section is located at the lower end of second support arm, and the junction surface is arranged on and insertion section position phase Corresponding position.
Further, the fastener and insertion section are formed in one structure.
Further, the insertion section is laminated structure.
Further, the fastener is including threeth support arm parallel with the surface of light guide plate, located at the 3rd support arm The 4th support arm on one end of center, the 4th support arm is vertical with the 3rd support arm, and the 3rd support arm extends towards backboard direction, described 4th support arm forms " L " font after being connected with the 3rd support arm, and the embedded division is formed after being connected with the 4th support arm by the 3rd support arm, 3rd support arm is provided with hole, and junction surface is oppositely arranged with hole, and the insertion section is screw, and junction surface is screw, fastener It is threadedly coupled with screw by screw, realization is fixed light guide plate with center by fastener.
Further, the 4th support arm is provided with the convex portion towards center protrusion, and hole is at convex portion.
Further, side side relative with the 4th support arm in the center is provided be adapted with lobe shape recessed Portion, screw is located on recess and hole site corresponding section.
Further, the convex portion is located at the middle part of the 4th support arm.
Present invention also offers a kind of liquid crystal display module, also including described backlight module.
The present invention compared with prior art, is fixed light guide plate with center by fastener, by fastener Junction surface on insertion section and center is attached, and realizes light guide plate in the Z-axis direction spacing so that light guide plate is consolidated In being scheduled on center, it is ensured that the fixation in the space of limitation to light guide plate, the reasonable reliability of component design is improve, and The uniformity of backlight assembly light can also be ensured.
Description of the drawings
Fig. 1 is the three-dimensional exploded view of the present invention;
Fig. 2 is the partial structural diagram of the embodiment of the present invention 1;
Fig. 3 is the sectional view of the fastener of the embodiment of the present invention 1;
Fig. 4 is the partial sectional view of the embodiment of the present invention 1;
Fig. 5 is the structural representation of the fastener of the embodiment of the present invention 1;
Fig. 6 is the partial sectional view of the embodiment of the present invention 2;
Fig. 7 is the sectional view of the fastener of the embodiment of the present invention 2.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, backlight module includes center 1, the backboard 2 on the lower surface of center 1, sets Blooming piece 5, light guide plate 4, the reflector plate 3 stacked gradually under upper in center 1, LED backlight is according to liquid crystal display mode The type of group is arranged in center 1, after the completion of above-mentioned part assembling, then liquid crystal panel 17 is pasted onto by double faced adhesive tape etc. On the upper surface of center 1 and front frame is installed, at least one is provided with the edge of light guide plate 4 for light guide plate 4 to be fixed on Fastener 7 in center 1, preferably at least relative both sides of the edge are provided with fastener 7, relative with light guide plate 4 in center 1 Side side be provided with junction surface 6, the side surface relative with junction surface 6 of the fastener 7 is provided with insertion section 8, insertion Portion 8 is corresponding with the position of junction surface 6, and the side relative with light guide plate 4 is provided with embedded division 9, the side of light guide plate 4 on fastener 7 In edge insertion embedded division 9, then insertion section 8 is inserted the (Z-direction in the Z-axis direction to light guide plate 4 is realized in junction surface 6 It is the direction perpendicular to the surface of light guide plate 4) spacing fixation.
As shown in Figure 2, Figure 3 and Figure 4, fastener 7 is " Contraband " shape structure in embodiment 1, and fastener 7 includes two with leaded light The second support arm 11 of two first support arms 10 of the parallel first support arm 10 in the surface of plate 4 and connection, second support arm 11 and first Support arm 10 is vertically arranged, second support arm 11 located at two first support arms 10 near one end of center 1, two first support arms 10 and the Two support arm 11 forms embedded division 9 after connecting, and the opening direction of embedded division 9 is relative with light guide plate 4, and insertion section 8 is located at second support arm On the 11 side sides relative with center 1.
Used as a kind of preferred version of embodiment 1, as shown in Fig. 3, Figure 4 and 5, insertion section 8 is under second support arm 11 End (side i.e. relative with backboard 4 on center 1), the junction surface 6 is arranged on and the position corresponding section of insertion section 8, junction surface 6 For the groove being opened at the lower edge of center 1;The fastener 7 and insertion section 8 can be formed in one structure, in second support arm 11 On be provided with groove 18, groove is " Jiong " font, so as to form a separation unit 19 in second support arm 11, by separation unit 19 towards in The side of frame 1 is bent to parallel with first support arm 10, and so as to form insertion section 8, insertion section 8 is laminated structure;The fastener 7 Made using stainless steel material.
As shown in Figure 6 and Figure 7, the fastener 7 in embodiment 2 includes three parallel with the surface of light guide plate 4 Arm 12, the 4th support arm 13 located at the 3rd support arm 12 on one end of center 1, the 4th support arm 13 is vertical with the 3rd support arm 12, 3rd support arm 12 extends towards the direction of backboard 2, and the 4th support arm 13 forms " L " word after being connected with the upper end of the 3rd support arm 12 Shape, is " L " font of a dextrorotation turnback from Fig. 7, the 3rd support arm 12 be connected with the 4th support arm 13 after at it Be formed with embedded division 9 (i.e. the left side of Fig. 7) in side with opening, the 3rd support arm 12 is provided with hole 14, junction surface 6 with Hole 14 is oppositely arranged, and insertion section 8 is screw at this, and junction surface 6 is screw, and fastener 7 is threadedly coupled by screw with screw, real Now light guide plate 4 is fixed with center 1 by fastener 7, specifically, after fastener 7 is fixed on center 1, the 3rd support arm 12 is pressed In the upper surface (i.e. on the side surface relative with blooming piece 5 of light guide plate 4) of light guide plate 4, in this way, realize guide-lighting The spacing and fixation in the Z-axis direction of plate 4.
For the ease of installing and aligning, as shown in fig. 7, the 4th support arm 12 is provided with the convex portion 15 towards the protrusion of center 1, hole 14 at convex portion 15, and the side side relative with the 4th support arm 12 is provided with recessed with what the shape of convex portion 15 was adapted in center 1 Portion 16, screw is located on recess 16 and the position corresponding section of hole 14, it is preferable that convex portion 15 is located at the middle part of the 4th support arm 12, hole 14 middle parts for being located at convex portion 15.
As shown in figure 1, a kind of this liquid crystal display module, also including above-mentioned backlight module, liquid crystal panel 17 passes through Double faced adhesive tape etc. is pasted onto on the upper surface of center 1.
The present invention makes together with light guide plate is relatively fixed at center 1, to be so prevented from light guide plate in Z by fastener Direction of principal axis is rocked back and forth, realizes being accurately positioned for light guide plate and center such that it is able to be reliably achieved light guide plate be fixed it is fixed Position, and the difference reduction of center connecting portion, make the light source of backlight assembly uniform.
Although illustrating and describing the present invention with reference to specific embodiment, it should be appreciated by those skilled in the art that: In the case of without departing from the spirit and scope of the present invention limited by claim and its equivalent, can here carry out form and Various change in details.

Claims (10)

1. a kind of backlight module, including center (1), the backboard (2), the reflector plate in center (1) located at center (1) lower end (3), light guide plate (4) and blooming piece (5), it is characterised in that:At least one use is provided with the edge of the light guide plate (4) In the fastener (7) that light guide plate (4) is fixed in center (1), the side side relative with light guide plate (4) in center (1) Junction surface (6) is provided with, the fastener (7) side surface relative with junction surface (6) is provided with insertion section (8), described to insert Enter portion (8) corresponding with junction surface (6) position, in insertion section (8) insertion junction surface (6), on fastener (7) and light guide plate (4) relative side is provided with embedded division (9), in edge insertion embedded division (9) of light guide plate (4).
2. backlight module according to claim 1, it is characterised in that:The fastener (7) is " Contraband " shape structure, and it includes The second support arm (11) of two first support arms (10) of two first support arms (10) parallel with the surface of light guide plate (4) and connection, Second support arm (11) is vertically arranged with first support arm (10), and second support arm (11) is located at two first support arms (10) near center (1) one end, by being formed after two first support arms (10) and second support arm (11) connection, insertion section (8) are located at for embedded division (9) On two support arms (11) the side side relative with center (1).
3. backlight module according to claim 2, it is characterised in that:The insertion section (8) is leaned on located at second support arm (11) On one end of nearly backboard 2, the junction surface (6) is arranged on and insertion section (8 (position corresponding sections.
4. the backlight module according to Claims 2 or 3, it is characterised in that:The fastener (7) is integrated with insertion section 8 Molding structure.
5. backlight module according to claim 4, it is characterised in that:The insertion section (8) is laminated structure.
6. backlight module according to claim 1, it is characterised in that:The fastener (7) includes one and light guide plate (4) Parallel the 3rd support arm (12) in surface, the 4th support arm (13) located at the 3rd support arm (12) on one end of center (1), the Four support arms (13) are vertical with the 3rd support arm (12), the 3rd support arm (12) towards backboard (2) direction extend, the 4th support arm (13) with " L " font is formed after the connection of 3rd support arm (12), after the embedded division (9) is connected by the 3rd support arm (12) with the 4th support arm (13) Formed, the 3rd support arm (12) is provided with hole (14), and junction surface (6) are oppositely arranged with hole (14), and the insertion section (8) is spiral shell Nail, junction surface (6) are screw, and fastener (7) is threadedly coupled by screw with screw, realize passing through fastener (7) by light guide plate (4) it is fixed with center (1).
7. backlight module according to claim 6, it is characterised in that:4th support arm (12) is provided with towards center (1) The convex portion (15) of protrusion, hole (14) are located at convex portion (15) place.
8. backlight module according to claim 7, it is characterised in that:It is relative with the 4th support arm (12) in the center (1) Side side be provided with the recess (16) being adapted with convex portion (15) shape, screw is on recess (16) and hole (14) position Corresponding section.
9. backlight module according to claim 8, it is characterised in that:The convex portion (15) is in the 4th support arm (12) Portion.
10. a kind of liquid crystal display module, it is characterised in that:Also include the backlight module as described in claim 1-9 any one.
CN201611181223.8A 2016-12-20 2016-12-20 A kind of backlight module and liquid crystal display die set Active CN106647027B (en)

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CN201611181223.8A CN106647027B (en) 2016-12-20 2016-12-20 A kind of backlight module and liquid crystal display die set

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Application Number Priority Date Filing Date Title
CN201611181223.8A CN106647027B (en) 2016-12-20 2016-12-20 A kind of backlight module and liquid crystal display die set

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CN106647027B CN106647027B (en) 2019-09-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112965291A (en) * 2021-02-02 2021-06-15 惠科股份有限公司 Display device and backlight module thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040041841A (en) * 2002-11-12 2004-05-20 엘지.필립스 엘시디 주식회사 Liquid crystal display
CN102155691A (en) * 2011-04-11 2011-08-17 深圳市华星光电技术有限公司 Backlight module and light guide plate fixed construction thereof
CN202158424U (en) * 2011-04-07 2012-03-07 深圳华映显示科技有限公司 Backlight module and liquid crystal display apparatus
CN102980147A (en) * 2012-11-29 2013-03-20 深圳市华星光电技术有限公司 Rubber frame, back light module and liquid crystal display device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040041841A (en) * 2002-11-12 2004-05-20 엘지.필립스 엘시디 주식회사 Liquid crystal display
CN202158424U (en) * 2011-04-07 2012-03-07 深圳华映显示科技有限公司 Backlight module and liquid crystal display apparatus
CN102155691A (en) * 2011-04-11 2011-08-17 深圳市华星光电技术有限公司 Backlight module and light guide plate fixed construction thereof
CN102980147A (en) * 2012-11-29 2013-03-20 深圳市华星光电技术有限公司 Rubber frame, back light module and liquid crystal display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112965291A (en) * 2021-02-02 2021-06-15 惠科股份有限公司 Display device and backlight module thereof

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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province

Patentee after: TCL Huaxing Photoelectric Technology Co.,Ltd.

Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province

Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd.

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