CN203823596U - Liquid crystal display device and backlight module thereof - Google Patents
Liquid crystal display device and backlight module thereof Download PDFInfo
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- CN203823596U CN203823596U CN201420247182.8U CN201420247182U CN203823596U CN 203823596 U CN203823596 U CN 203823596U CN 201420247182 U CN201420247182 U CN 201420247182U CN 203823596 U CN203823596 U CN 203823596U
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- led lamp
- backlight module
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- lamp pearl
- liquid crystal
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Abstract
The utility model provides a liquid crystal display device and a backlight module of the liquid crystal display device. The backlight module comprises a light guide plate and an LED lamp bar, wherein the LED lamp bar comprises an LED substrate and N LED lamp beads located on the surface of the LED substrate, the N LED lamp beads are connected end to end, and the included angles between the light outgoing faces of M LED lamp beads of the N LED lamp beads and the light incoming face of the light guide plate are respectively theta, wherein the theta is larger than 0 degree and smaller than or equal to 45 degrees, N and M are positive integers, and M is smaller than or equal to N. Due to the fact that the light outgoing faces of part or all of the N LED lamp beads and the light incoming face of the light guide plate are set with a certain angle, in other words, the LED lamp beads are obliquely arranged, and therefore the width, occupied by many of the LED lamp beads, of the backlight module is reduced, the number of the LED lamp beads arranged on per unit of width of the backlight module is increased, the number of the LED lamp beads arranged on per unit of width of the backlight module can be increased under the condition that other parameters of the backlight module are not changed, and the light-emitting brightness of the backlight module is improved.
Description
Technical field
The utility model relates to backlight technology field, relates in particular a kind of liquid crystal indicator and backlight module thereof.
Background technology
Liquid crystal display itself is not luminous, and liquid crystal display will demonstrate image normally, must adopt backlight module to provide backlight for it, and as shown in Figure 1, described backlight module comprises:
LGP 01, LGP 01 comprises the exiting surface 011 and the bottom surface 012 that are oppositely arranged, and perpendicular to described exiting surface 011 and bottom surface 012, and connects the incidence surface 013 of described exiting surface 011 and bottom surface 012;
Light source 02, is positioned at a side of the incidence surface 013 of LGP 01, and as shown in Figure 2, described light source 02 comprises multiple LED lamp pearls 021 and LED lamp bar substrate 022, and the 021 end to end setting of LED lamp pearl is arranged in a linear in a side of the incidence surface of described LGP;
The film layer structure such as bright enhancement film and diffusion barrier 03, film layer structure 03 is all positioned on the exiting surface of LGP 01, to increase backlight module outgoing uniformity of light and brightness.
Along with liquid crystal display module is towards giant-screen, ultra-thin, high-resolution future development, the display brightness deficiency of liquid crystal display module.
Utility model content
In view of this, the utility model provides a kind of backlight module, to solve the problem of display brightness deficiency of liquid crystal display module in prior art.
For achieving the above object, the utility model provides following technical scheme:
A kind of backlight module, comprising:
LGP, described LGP comprises the exiting surface and the bottom surface that are oppositely arranged, and perpendicular to the incidence surface of described exiting surface and bottom surface;
Be positioned at the LED lamp bar of incidence surface one side of described LGP, described LED lamp bar comprises LED substrate and is positioned at N LED lamp pearl on described LED substrate surface;
Wherein, the end to end setting of described N LED lamp pearl, and angle between exiting surface and the incidence surface of described LGP of M LED lamp pearl in described N LED lamp pearl is θ, and 0 ° of < θ≤45 °, N, M are positive integer, and M≤N.
Preferably, M=N, and angle theta between exiting surface and the incidence surface of described LGP of described N LED lamp pearl is 30 °.
Preferably, M=N, and angle theta between exiting surface and the incidence surface of described LGP of described N LED lamp pearl is 45 °.
Preferably, M < N, and the angle theta between exiting surface and the incidence surface of described LGP of multiple LED lamp pearls of described LED lamp bar both sides meets 0 ° of < θ≤45 °, the exiting surface of multiple LED lamp pearls that is positioned at described LED lamp bar mid portion is parallel with the incidence surface of described LGP.
Preferably, M < N, and the exiting surface of multiple LED lamp pearls that is positioned at described LED lamp bar both sides is parallel with the incidence surface of described LGP, the angle theta between exiting surface and the incidence surface of described LGP of multiple LED lamp pearls of described LED lamp bar mid portion meets 0 ° of < θ≤45 °.
The utility model also provides a kind of liquid crystal indicator simultaneously, and described liquid crystal indicator comprises liquid crystal display and be positioned at the backlight source module at the described liquid crystal display back side, and wherein, described backlight source module is the backlight module described in any one above.
Known via above-mentioned technical scheme, the backlight module that the utility model provides, comprise LGP, LED lamp bar, on described LED lamp bar, comprise N end to end LED lamp pearl, and the angle between exiting surface and the incidence surface of described LGP of M LED lamp pearl in described N LED lamp pearl is θ, and 0 ° of < θ≤45 °, N, M are positive integer, and M≤N.Be that the part or all of exit facet of LED lamp pearl and the incidence surface of LGP in described N LED lamp pearl is arranged to have certain angle, by multiple LED lamp pearl oblique arrangement, thereby reduce the width of the backlight module that multiple LED lamp pearls take, the quantity of the LED lamp pearl arranging on the unit width of backlight module is increased, thereby can be in the case of not changing other parameters of backlight module (as the width of backlight module), increase the LED lamp pearl quantity arranging on backlight module unit width, and then the backlight module being arranged side by side with respect to LED lamp pearl, improve the luminosity of backlight module.
The utility model also provides a kind of liquid crystal indicator that comprises above-mentioned backlight module, because the quantity of the LED lamp pearl on backlight module unit width increases, thereby can increase the brightness in liquid crystal indicator unit are.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
Fig. 1 is a kind of sectional structure chart that shows module;
Fig. 2 is the top view of backlight module in prior art;
The top view of a kind of backlight module that Fig. 3 provides for the utility model;
The top view of the another kind of backlight module that Fig. 4 provides for the utility model.
Detailed description of the invention
Just as described in the background section, the luminance shortage of liquid crystal display module of the prior art, especially, for the larger liquid crystal display module of screen, existing backlight illumination can not meet the requirement of client to backlight illumination.
Inventor finds, the reason that occurs above-mentioned phenomenon is, although along with the screen of liquid crystal display module becomes large gradually, the width that can hold the demonstration module of backlight also becomes large thereupon, the corresponding number that can increase backlight LED lamp pearl, but the brightness that the LED lamp pearl increasing provides far can not meet because liquid crystal display mode group screen curtain increases the demand to backlight illumination, and, along with the increase of liquid crystal display mode group screen curtain, its backlight illumination can not meet the demands.
Based on this, inventor finds through research, and a kind of backlight module is provided, and comprising:
LGP, described LGP comprises the exiting surface and the bottom surface that are oppositely arranged, and perpendicular to the incidence surface of described exiting surface and bottom surface;
Be positioned at the LED lamp bar of incidence surface one side of described LGP, described LED lamp bar comprises LED substrate and is positioned at N LED lamp pearl on described LED substrate surface;
Wherein, the end to end setting of described N LED lamp pearl, and angle between exiting surface and the incidence surface of described LGP of M LED lamp pearl in described N LED lamp pearl is θ, and 0 ° of < θ≤45 °, N, M are positive integer, and M≤N.
From above-mentioned technical scheme, the backlight module that the utility model provides, the part or all of exit facet of LED lamp pearl and the incidence surface of LGP in described N LED lamp pearl are arranged to have certain angle, by multiple LED lamp pearl oblique arrangement, thereby reduce the width of the backlight module that multiple LED lamp pearls take, the quantity of the LED lamp pearl arranging on the unit width of backlight module is increased, thereby can be in the situation that not changing other parameters of backlight module, increase the LED lamp pearl quantity arranging on backlight module unit width, and then the backlight module being arranged side by side with respect to LED lamp pearl, improve the luminosity of backlight module.
It is more than the application's core concept, below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
A lot of details are set forth in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from mode described here and implement, those skilled in the art can do similar popularization without prejudice to the utility model intension in the situation that, and therefore the utility model is not subject to the restriction of following public specific embodiment.
Secondly, the utility model is described in detail in conjunction with schematic diagram, in the time that the utility model embodiment is described in detail in detail; for ease of explanation; represent that the profile of device architecture can disobey general ratio and do local amplification, and described schematic diagram is example, it should not limit the scope of the utility model protection at this.In addition in actual fabrication, should comprise, the three-dimensional space of length, width and the degree of depth.
Specifically describe below by several embodiment liquid crystal indicator and the backlight module thereof that the utility model provides.
The disclosed a kind of backlight module of the utility model embodiment, as shown in Figure 3, comprising:
LGP 10, described LGP comprises the exiting surface and the bottom surface that are oppositely arranged, and perpendicular to the incidence surface of described exiting surface and bottom surface;
LED lamp bar, LED lamp bar is positioned at a side of the incidence surface 101 of LGP 10, and LED lamp bar comprises LED substrate and is positioned at N LED lamp pearl 20 on LED substrate surface.
In the present embodiment, the 20 end to end settings of LED lamp pearl, and angle between the exiting surface 201 of M LED lamp pearl and the incidence surface 101 of described LGP in N LED lamp pearl is θ, and 0 ° of < θ≤45 °, wherein, N, M are positive integer, and M≤N.
Please also refer to Fig. 2 and Fig. 3, wherein Fig. 2 is the arrangement mode of LED lamp bar in prior art backlight module, the arrangement mode of the LED lamp bar of the backlight module that Fig. 3 provides for the utility model, comparison diagram 2 and Fig. 3 can find out, in the present embodiment, the arrangement mode of the LED lamp bar of backlight module is different from the arrangement mode of the LED lamp pearl in prior art backlight module.In the backlight module providing in the present embodiment, the LED lamp pearl on the LED lamp bar on it is end to end, and the V-shaped arrangement of multiple LED lamp pearl, between the exiting surface of each LED lamp pearl and the incidence surface of LGP, has angle theta.For the light that makes the outgoing of each LED lamp pearl is directly injected in LGP, preferred in the present embodiment, angle between exiting surface and the incidence surface of LGP of LED lamp pearl meets 0 ° of < θ≤45 °, thereby avoid the light of LED lamp pearl outgoing before entering LGP, at other LED lamp pearl exiting surfaces, the phenomenon that reflection causes brightness to reduce has occurred.
Preferably, angle theta between exiting surface and the incidence surface of LGP of described LED lamp pearl can be 15 °, 30 ° or 45 ° of equal angles, in the present embodiment, this is not limited, angle theta between exiting surface and the incidence surface of leaded light of LED lamp pearl can arrange according to the area of actual backlight module or width, when the width of backlight module hour, preferred described angle theta can be more greatly, as get 45 °, thereby make can hold more LED lamp pearl on fixing backlight module width, and then increase to greatest extent the brightness of backlight module; In the time that the width of backlight module is larger, the value of described angle theta can be chosen relatively smaller, as long as can increase backlight illumination.
In the present embodiment all and between the incidence surface of LGP there is angle in the exiting surface of whole LED lamp pearls, the i.e. situation of M=N above, it should be noted that, in the present embodiment, do not limit angle between exiting surface and the incidence surface of described LGP of described N LED lamp pearl all identical, , angle in the present embodiment between exiting surface and the incidence surface of described LGP of N LED lamp pearl can be identical, can be not identical yet, specifically depend on the circumstances, preferred in the present embodiment, angle between exiting surface and the incidence surface of described LGP of described N LED lamp pearl is all identical.
It should be noted that, the exiting surface of the lamp of LED described in the present embodiment pearl also can exist part to tilt, the situation that all the other do not tilt, as shown in Figure 4, the angle of the existence between the exiting surface of LED lamp pearl 211 and the incidence surface 101 of LGP 10 of the two side portions on LED lamp bar 21, and described angle is greater than 0 °, be less than or equal to 45 °, and the exiting surface of LED lamp pearl 211 and the incidence surface 101 of LGP 10 that are positioned at LED lamp bar 21 mid portions are parallel to each other, in this situation, due to the LED lamp pearl that exists part to tilt, the length that LED lamp pearl is taken reduces, thereby more LED lamp pearl can be set in the space sparing again, and then increase the quantity of LED lamp pearl in unit length, the brightness of backlight module is increased.
Same, in this enforcement, do not limit only this kind of form, the arrangement mode of LED lamp pearl can also be other forms, as the LED lamp pearl that is positioned at LED lamp bar mid portion is what tilt, between the exiting surface of the LED of mid portion lamp pearl and the incidence surface of LGP, there is angle, and be positioned at the exiting surface of LED lamp pearl of LED lamp bar two side portions and the incidence surface of LGP is parallel to each other.In the present embodiment, the quantity of the LED lamp pearl tilting is not limited, as long as after the inclination of described LED lamp pearl, can reach the effect of setting up LED lamp pearl, be the protection domain of the present embodiment.
The utility model also provides a kind of liquid crystal indicator, and described liquid crystal indicator comprises liquid crystal display and be positioned at the backlight source module at the described liquid crystal display back side, and wherein, described backlight source module is the backlight module described in embodiment above.Be greater than 0 ° and be less than or equal to the angle of 45 ° owing to existing between the exiting surface of the part or all of LED lamp pearl in the LED lamp bar in described backlight module and the incidence surface of LGP, the space that LED lamp pearl is taken on LED lamp bar length direction reduces, thereby can increase the setting of LED lamp pearl, the number of LED lamp pearl in unit length is increased, and then increase the brightness of backlight module, in the situation that not changing other conditions, meet the brightness requirement of large screen display device.
In this description, various piece adopts the mode of going forward one by one to describe, and what each part stressed is and the difference of other parts, between various piece identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a backlight module, is characterized in that, comprising:
LGP, described LGP comprises the exiting surface and the bottom surface that are oppositely arranged, and perpendicular to the incidence surface of described exiting surface and bottom surface;
Be positioned at the LED lamp bar of incidence surface one side of described LGP, described LED lamp bar comprises LED substrate and is positioned at N LED lamp pearl on described LED substrate surface;
Wherein, the end to end setting of described N LED lamp pearl, and angle between exiting surface and the incidence surface of described LGP of M LED lamp pearl in described N LED lamp pearl is θ, and 0 ° of < θ≤45 °, N, M are positive integer, and M≤N.
2. backlight module according to claim 1, is characterized in that, M=N, and angle theta between exiting surface and the incidence surface of described LGP of described N LED lamp pearl is 30 °.
3. backlight module according to claim 1, is characterized in that, M=N, and angle theta between exiting surface and the incidence surface of described LGP of described N LED lamp pearl is 45 °.
4. backlight module according to claim 1, it is characterized in that, M < N, and the angle theta between exiting surface and the incidence surface of described LGP of multiple LED lamp pearls of described LED lamp bar both sides meets 0 ° of < θ≤45 °, the exiting surface of multiple LED lamp pearls that is positioned at described LED lamp bar mid portion is parallel with the incidence surface of described LGP.
5. backlight module according to claim 1, it is characterized in that, M < N, and the exiting surface of multiple LED lamp pearls that is positioned at described LED lamp bar both sides is parallel with the incidence surface of described LGP, the angle theta between exiting surface and the incidence surface of described LGP of multiple LED lamp pearls of described LED lamp bar mid portion meets 0 ° of < θ≤45 °.
6. a liquid crystal indicator, is characterized in that, described liquid crystal indicator comprises liquid crystal display and the backlight source module that is positioned at the described liquid crystal display back side, and wherein, described backlight source module is the backlight module described in claim 1-5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247182.8U CN203823596U (en) | 2014-05-14 | 2014-05-14 | Liquid crystal display device and backlight module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247182.8U CN203823596U (en) | 2014-05-14 | 2014-05-14 | Liquid crystal display device and backlight module thereof |
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| CN203823596U true CN203823596U (en) | 2014-09-10 |
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| CN201420247182.8U Active CN203823596U (en) | 2014-05-14 | 2014-05-14 | Liquid crystal display device and backlight module thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051639A (en) * | 2020-09-11 | 2020-12-08 | 深圳市利航电子有限公司 | Bright backlight source structure |
| CN114675450A (en) * | 2022-03-29 | 2022-06-28 | 北京京东方显示技术有限公司 | Light bar, backlight module and display device |
| CN114811531A (en) * | 2022-04-28 | 2022-07-29 | 富盛光电（吴江）有限公司 | Backlight module and method for reducing thickness of backlight module |
-
2014
- 2014-05-14 CN CN201420247182.8U patent/CN203823596U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051639A (en) * | 2020-09-11 | 2020-12-08 | 深圳市利航电子有限公司 | Bright backlight source structure |
| CN114675450A (en) * | 2022-03-29 | 2022-06-28 | 北京京东方显示技术有限公司 | Light bar, backlight module and display device |
| CN114811531A (en) * | 2022-04-28 | 2022-07-29 | 富盛光电（吴江）有限公司 | Backlight module and method for reducing thickness of backlight module |
| CN114811531B (en) * | 2022-04-28 | 2024-03-22 | 富盛光电（吴江）有限公司 | Backlight module and method for reducing thickness of backlight module |
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| C14 | Grant of patent or utility model | ||
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