CN105425465A - Liquid crystal displayer and backlight module thereof - Google Patents
Liquid crystal displayer and backlight module thereof Download PDFInfo
- Publication number
- CN105425465A CN105425465A CN201511000638.6A CN201511000638A CN105425465A CN 105425465 A CN105425465 A CN 105425465A CN 201511000638 A CN201511000638 A CN 201511000638A CN 105425465 A CN105425465 A CN 105425465A
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- connecting portion
- backlight module
- storage tank
- center
- optical diaphragm
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a backlight module. The backlight module comprises a back plate as well as a light guide panel, a middle frame and an optical film group which are arranged above the back plate, wherein one end of the middle frame extends to the side wall of the back plate, and the other end of the middle frame extends onto the light guide panel; an accommodating groove is formed in the middle frame, a positioning mechanism is connected in the accommodating groove and comprises a first connection part and a second connection part, the first connection part is connected to the accommodating groove and extends in the direction vertical to the accommodating groove, and the second part is connected with the first connection part and extends in the direction parallel with the accommodating groove; a positioning part is arranged on the optical film group, and a positioning hole is formed in the positioning part; the optical film group is assembled on the middle frame; the positioning part is put in the accommodating groove, the positioning hole penetrates through the positioning mechanism, and the second connection part props against the positioning part. The invention further discloses a liquid crystal displayer comprising the backlight module.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly relate to a kind of liquid crystal display and backlight module thereof.
Background technology
Liquid crystal display (LiquidCrystalDisplay, LCD) is the display device of planar ultra-thin, and it is made up of the colour of some or monochrome pixels, is positioned over light source or reflecting surface front.Liquid crystal display power consumption is very low, and has high image quality, little, the lightweight feature of volume, and therefore extremely everybody favors, and becomes the main flow of display.Backlight module is the important component part of liquid crystal display, and its ultimate principle pointolite or line source is converted into high brightness and the good area source of homogeneity, thus enables the normal show image of liquid crystal panel.
As shown in Figure 1, existing a kind of backlight module, it mainly comprises backboard 1 and is positioned at reflector plate 2 on backboard 1, light guide plate 3, center 4, light source 5 and optical diaphragm group 6 (being made up of several blooming pieces), light guide plate 3 realizes display for pointolite being converted to area source, and optical diaphragm group 6 is for making uniform light and improving display brightness.Because the material of optical diaphragm group 6 own is very soft and fragile, for preventing optical diaphragm group 6 to be damaged due to dislocation and escape in assembling, handling process, need to position optical diaphragm group 6.In backlight module as the existing structure of Fig. 1, one end of center 4 extends on the sidewall of backboard 1, and the other end extends in light guide plate 3, and optical diaphragm group 6 is placed on the upper surface of center 4.Wherein, the upper surface of center 4 has protruding reference column 7, and optical diaphragm group 6 has the pilot hole 8 matched with reference column 7, pilot hole 8 is fastened on the location realizing optical diaphragm group 6 in reference column 7.This locator meams only can realize optical diaphragm group 6 location in the in-plane direction, and the location on the thickness direction of optical diaphragm group 6, then need the structural features increasing other locate or glue the disposable locating adhesive tape of note, such as, step and draw adhesive tape (Mylar).The mode increasing other structural features not only increases cost, is also unfavorable for the final narrow frame of display module and slimming design.And adopt the mode of the sticky disposable locating adhesive tape of note, due to the not reproducible utilization of disposable locating adhesive tape, needing the disposable locating adhesive tape more renewed when keeping in repair backlight module, which increasing production cost, have impact on maintenance efficiency; Further, disposable locating adhesive tape, due to its material behavior, often can pollute blooming piece, thus has influence on the quality of product.
Summary of the invention
In view of the deficiency that prior art exists, the invention provides a kind of backlight module, by the improvement to optical diaphragm group locating formation, make the location of optical diaphragm group more firm, and can production cost be reduced, also help and realize the final narrow frame of display module and slimming design.
To achieve these goals, present invention employs following technical scheme:
A kind of backlight module, comprise backboard and be arranged at the light guide plate above described backboard, center and optical diaphragm group, wherein, one end of described center extends on the sidewall of described backboard, the other end extends in described light guide plate, described center is provided with storage tank, detent mechanism is connected with in described storage tank, described detent mechanism comprises the first connecting portion and the second connecting portion, described first connecting portion is connected to described storage tank and extends along the direction perpendicular to described storage tank, described second connecting portion is connected with described first connecting portion and extends along the direction being parallel to described storage tank, described optical diaphragm group is provided with location division, and described location division is extended from the edge of described optical diaphragm group, is provided with pilot hole in described location division, described optical diaphragm group is loaded on described center, wherein, described location division is positioned in described storage tank, and described pilot hole is arranged in described detent mechanism, and described second connecting portion is pressed on described location division.
Preferably, described center is provided with a loading end, described optical diaphragm group is positioned on described loading end, is set to opening towards described blooming piece group switching centre side in the sidewall of described storage tank, and described storage tank is positioned at identical surface level with described loading end.
Preferably, the first end of described first connecting portion is connected with described storage tank, and the second end is connected with described second connecting portion; The first end of described second connecting portion is connected with the second end of described first connecting portion, and the second end extends towards the direction away from described blooming piece group switching centre.
Preferably, be skewed towards the one side of described blooming piece group switching centre in described first connecting portion, and the thickness of the first end of described first connecting portion is greater than the thickness of the second end.
Preferably, be also provided with a through hole in described storage tank, described through hole is positioned at the below of described second connecting portion.
Preferably, the thickness of described second connecting portion is 0.4 ~ 1mm, and the length that described second connecting portion extends along the direction being parallel to described storage tank is 2 ~ 4mm.
Further, described backlight module also comprises reflector plate and light source, and described reflector plate is arranged on described backboard, and described light guide plate is arranged on described reflector plate; Described light source is arranged on described backboard, between described backboard sidewall and the end face of described light guide plate.
Further, the structure that is formed in one of described center and described detent mechanism.
Further, described center extends to the one end in described light guide plate, and the side towards described light guide plate is provided with two spaced lug bosses, and described lug boss is pressed in described light guide plate.
Another aspect of the present invention is to provide a kind of liquid crystal display, it comprises liquid crystal panel and backlight module as above, described liquid crystal panel and described backlight module are oppositely arranged, and described backlight module provides display light source to described liquid crystal panel, to make described liquid crystal panel show image.
Compared to prior art, in the backlight module provided in the embodiment of the present invention, for the detent mechanism of fixed optics diaphragm group, it comprises the first connecting portion and the second connecting portion, first connecting portion can position in the horizontal direction to optical diaphragm group, second connecting portion can position optical diaphragm group in the vertical direction, the structure that first connecting portion and the second connecting portion are integrated, do not need to increase extra structural features, make the location of optical diaphragm group more firm, and can production cost be reduced, also help and realize the final narrow frame of display module and slimming design.In addition, the structure that detent mechanism and center are formed in one, can not pollute blooming piece.
Accompanying drawing explanation
Fig. 1 is the section of structure of existing a kind of backlight module;
Fig. 2 is the section of structure of the backlight module that the embodiment of the present invention provides;
Fig. 3 is the structural representation that in the embodiment of the present invention, optical diaphragm group is combined with center;
Fig. 4 is the structural representation of the center in the embodiment of the present invention;
Fig. 5 is the section of structure of the center in the embodiment of the present invention;
Fig. 6 is the structural representation of the liquid crystal display that the embodiment of the present invention provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.The example of these preferred implementations illustrates in the accompanying drawings.Shown in accompanying drawing and the embodiments of the present invention described with reference to the accompanying drawings be only exemplary, and the present invention is not limited to these embodiments.
At this, also it should be noted that, in order to avoid the present invention fuzzy because of unnecessary details, illustrate only in the accompanying drawings with according to the closely-related structure of the solution of the present invention and/or treatment step, and eliminate other details little with relation of the present invention.
Consult Fig. 2 to Fig. 5, the present embodiment provide firstly a kind of backlight module.As shown in Figure 1, this backlight module comprises backboard 10 and is arranged at light guide plate 20, center 30 and the optical diaphragm group 40 above described backboard 10.Described backlight module also comprises reflector plate 50 and light source 60, and described reflector plate 50 is arranged on described backboard 10, and described light guide plate 20 is arranged on described reflector plate 50; Described light source 60 is arranged on described backboard 10, between the sidewall 10a and the end face of described light guide plate 20 of described backboard 10.The light that light source 60 sends is forming surface light source after light guide plate 20, then through optical diaphragm group 40 to make light more evenly and to improve display brightness.Wherein, described optical diaphragm group 40 comprises prism diaphragm 40a, the anti-reflection diaphragm 40b and diffusion barrier sheet 40c that lamination is successively arranged.
Wherein, as shown in Figure 2 and Figure 5, one end of described center 30 extends on the sidewall 10a of described backboard 10, the other end extends in described light guide plate 20, described center 30 is provided with storage tank 31, detent mechanism 32 is connected with in described storage tank 31, described detent mechanism 32 comprises the first connecting portion 321 and the second connecting portion 322, described first connecting portion 321 extends from described storage tank 31 and along the direction perpendicular to described storage tank 31, described second connecting portion 322 is connected with described first connecting portion 321 and extends along the direction being parallel to described storage tank 31.
Wherein, as shown in Figures 2 to 4, described optical diaphragm group 40 is provided with location division 41, and described location division 41 is extended from the edge of described optical diaphragm group 40, is provided with pilot hole 411 in described location division 41.Described optical diaphragm group 40 is loaded on described center 30; Wherein, described location division 41 is positioned in described storage tank 31, and described pilot hole 411 is arranged in described detent mechanism 32, and described second connecting portion 322 is pressed on described location division 41.Particularly, described center 30 is provided with a loading end 34, is set to opening 311 towards side, described optical diaphragm group 40 center in the sidewall of described storage tank 31, described storage tank 31 is positioned at identical surface level with described loading end 34.Described optical diaphragm group 40 is positioned on described loading end 34, and the location division 41 of optical diaphragm group 40 is extend in storage tank 31 by opening 311.
As above in backlight module, first connecting portion 321 can position in the horizontal direction to optical diaphragm group 40, second connecting portion 322 can position optical diaphragm group 40 in the vertical direction, the structure that first connecting portion 321 and the second connecting portion 322 are integrated, do not need to increase extra structural features, make the location of optical diaphragm group 40 more firm, and can production cost be reduced, also help and realize the final narrow frame of display module and slimming design.
In the present embodiment, as shown in Figure 5, the first end 321a of described first connecting portion 321 is connected with described storage tank 31, and the second end 321b is connected with described second connecting portion 322; The first end 322a of described second connecting portion 322 is connected with the second end 321b of described first connecting portion 321, and the second end 322b extends towards the direction away from described optical diaphragm group 40 center.Further, in described first connecting portion 321 towards the one side 321c at described optical diaphragm group 40 center be skewed, and the thickness of the first end 321a of described first connecting portion 321 is greater than the thickness of the second end 321b, the location division 41 of optical diaphragm group 40 can be made so to be more easy to wear in detent mechanism 32, and the thickness of the first end 321a of the first connecting portion 321 is comparatively large, has enough physical strengths.
In the present embodiment, as shown in Figure 5, the thickness D of described second connecting portion 322 is designed to more than 0.4mm, is 0.4 ~ 1mm than more preferably scope, and the length L that described second connecting portion 322 extends along the direction being parallel to described storage tank 31 is 2 ~ 4mm than more preferably scope.
In the present embodiment, the structure that is formed in one of described center 30 and described detent mechanism 32.Further, as shown in Figure 4 and Figure 5, be also provided with a through hole 33 in described storage tank 31, described through hole 33 is positioned at the below of described second connecting portion 322.The shape of described through hole 33 and the shape approximation of the second connecting portion 322, the area of described through hole 33 is slightly larger than the second connecting portion 322 area, thus, when shaping center 30 and detent mechanism 32, the slide block of mould can be walked in through hole 33, reduce the manufacture difficulty of detent mechanism 32, and save material, reduce costs.
The present embodiment additionally provides a kind of liquid crystal display, consult Fig. 6, this liquid crystal display comprises the backlight module 200 provided in liquid crystal panel 100 and the present embodiment, described liquid crystal panel 100 is oppositely arranged with described backlight module 200, described backlight module 200 provides display light source to described liquid crystal panel 100, to make described liquid crystal panel 100 show image.
Further, in the present embodiment, as shown in Figure 2, described center 30 extends to the one end in described light guide plate 20, and be provided with two spaced lug bosses 35 towards the side of described light guide plate 20, described lug boss 35 is pressed in described light guide plate 20.Form groove between two spaced lug bosses 35, contribute to the heat radiation of backlight module; In addition, can fill some vibration-absorptive materials in groove, when making backlight module be subject to some accidental impact, inner structure member (such as light guide plate) is not fragile yet.
In sum, in the backlight module that the present embodiment provides, for the detent mechanism of fixed optics diaphragm group, it comprises the first connecting portion and the second connecting portion, first connecting portion can position in the horizontal direction to optical diaphragm group, second connecting portion can position optical diaphragm group in the vertical direction, the structure that first connecting portion and the second connecting portion are integrated, do not need to increase extra structural features, make the location of optical diaphragm group more firm, and can production cost be reduced, also help and realize the final narrow frame of display module and slimming design.In addition, the structure that detent mechanism and center are formed in one, can not pollute blooming piece.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above is only the embodiment of the application; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of the application.
Claims (10)
1. a backlight module, comprises backboard (10) and is arranged at light guide plate (20), center (30) and the optical diaphragm group (40) above described backboard (10), it is characterized in that,
One end of described center (30) extends on the sidewall (10a) of described backboard (10), the other end extends in described light guide plate (20), described center (30) is provided with storage tank (31), detent mechanism (32) is connected with in described storage tank (31), described detent mechanism (32) comprises the first connecting portion (321) and the second connecting portion (322), described first connecting portion (321) is connected to described storage tank (31) and extends along the direction perpendicular to described storage tank (31), described second connecting portion (322) is connected with described first connecting portion (321) and extends along the direction being parallel to described storage tank (31),
Described optical diaphragm group (40) is provided with location division (41), described location division (41) is extended from the edge of described optical diaphragm group (40), is provided with pilot hole (411) in described location division (41);
Described optical diaphragm group (40) is loaded on described center (30); Wherein, described location division (41) is positioned in described storage tank (31), described pilot hole (411) is arranged in described detent mechanism (32), and described second connecting portion (322) is pressed on described location division (41).
2. backlight module according to claim 1, it is characterized in that, described center (30) is provided with a loading end (34), described optical diaphragm group (40) is positioned on described loading end (34), be set to opening (311) towards described optical diaphragm group (40) side, center in the sidewall of described storage tank (31), described storage tank (31) is positioned at identical surface level with described loading end (34).
3. backlight module according to claim 1, it is characterized in that, the first end (321a) of described first connecting portion (321) is connected with described storage tank (31), and the second end (321b) is connected with described second connecting portion (322); The first end (322a) of described second connecting portion (322) is connected with second end (321b) of described first connecting portion (321), and the second end (322b) extends towards the direction away from described optical diaphragm group (40) center.
4. backlight module according to claim 3, it is characterized in that, in described first connecting portion (321) towards the one side (321c) at described optical diaphragm group (40) center in skewed, and the thickness of the first end (321a) of described first connecting portion (321) is greater than the thickness of the second end (321b).
5. according to the arbitrary described backlight module of claim 1-4, it is characterized in that, also be provided with a through hole (33) in described storage tank (31), described through hole (33) is positioned at the below of described second connecting portion (322).
6. according to the arbitrary described backlight module of claim 1-4, it is characterized in that, the thickness of described second connecting portion (322) is 0.4 ~ 1mm, and the length that described second connecting portion (322) extends along the direction being parallel to described storage tank (31) is 2 ~ 4mm.
7. according to the arbitrary described backlight module of claim 1-4, it is characterized in that, described backlight module also comprises reflector plate (50) and light source (60), described reflector plate (50) is arranged on described backboard (10), and described light guide plate (20) is arranged on described reflector plate (50); Described light source (60) is arranged on described backboard (10), is positioned between the sidewall (10a) of described backboard (10) and the end face of described light guide plate (20).
8., according to the arbitrary described backlight module of claim 1-4, it is characterized in that, the structure that described center (30) and described detent mechanism (32) are formed in one.
9. according to the arbitrary described backlight module of claim 1-4, it is characterized in that, described center (30) extends to the one end in described light guide plate (20), side towards described light guide plate (20) is provided with two spaced lug bosses (35), and described lug boss (35) is pressed in described light guide plate (20).
10. a liquid crystal display, it is characterized in that, comprise liquid crystal panel (100) and the arbitrary described backlight module (200) of claim 1-9, described liquid crystal panel (100) and described backlight module (200) are oppositely arranged, described backlight module (200) provides display light source to described liquid crystal panel (100), to make described liquid crystal panel (100) show image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000638.6A CN105425465B (en) | 2015-12-28 | 2015-12-28 | Liquid crystal display and its backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000638.6A CN105425465B (en) | 2015-12-28 | 2015-12-28 | Liquid crystal display and its backlight module |
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| Publication Number | Publication Date |
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| CN105425465A true CN105425465A (en) | 2016-03-23 |
| CN105425465B CN105425465B (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511000638.6A Active CN105425465B (en) | 2015-12-28 | 2015-12-28 | Liquid crystal display and its backlight module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110673374A (en) * | 2019-10-12 | 2020-01-10 | 深圳创维－Rgb电子有限公司 | Touch screen module and touch television |
| TWI769024B (en) * | 2021-07-23 | 2022-06-21 | 瑞儀光電股份有限公司 | Backlight module and display device |
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| TWI769024B (en) * | 2021-07-23 | 2022-06-21 | 瑞儀光電股份有限公司 | Backlight module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105425465B (en) | 2018-11-23 |
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