CN203965766U - A kind of backlight module with high brightness laser site formula light guide plate - Google Patents

A kind of backlight module with high brightness laser site formula light guide plate Download PDF

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Publication number
CN203965766U
CN203965766U CN201420276899.5U CN201420276899U CN203965766U CN 203965766 U CN203965766 U CN 203965766U CN 201420276899 U CN201420276899 U CN 201420276899U CN 203965766 U CN203965766 U CN 203965766U
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CN
China
Prior art keywords
light guide
guide plate
backlight module
site formula
high brightness
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.)
Expired - Fee Related
Application number
CN201420276899.5U
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Chinese (zh)
Inventor
晏龙
张羿
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.)
DONGGUAN GUANGGU MAOHE LASER TECHNOLOGY CO LTD
Original Assignee
DONGGUAN GUANGGU MAOHE LASER TECHNOLOGY 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.)
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Publication date
Application filed by DONGGUAN GUANGGU MAOHE LASER TECHNOLOGY CO LTD filed Critical DONGGUAN GUANGGU MAOHE LASER TECHNOLOGY CO LTD
Priority to CN201420276899.5U priority Critical patent/CN203965766U/en
Application granted granted Critical
Publication of CN203965766U publication Critical patent/CN203965766U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of backlight module with high brightness laser site formula light guide plate, it comprises the diaphragm, brightness enhancement film, diffusion barrier, light guide plate and the reflecting piece that set gradually, the evenly distributed concave point of site formula that described light guide plate upper surface forms by laser dotting, described light guide plate is the thin integrated guide tabula rasa in thick center, both sides, its xsect is symmetrically arranged two right-angled trapezium, and the upper base of two right-angled trapezium overlaps; Described backlight module also comprises two groups of LED lamps, is separately positioned on the both sides of light guide plate, goes to the bottom near right-angled trapezium, is coated with reflection diaphragm in LED lamp outside.The utility model is by the mode of laser dotting, on both sides, the thin light guide plate upper surface in thick center forms the equally distributed high density circle of site formula or regular pentagon concave point, leaded light is more even, transmittance can reach more than 93%, long service life, light guide effect is better, the concave point design of site formula, make light guide plate no dark space, not light leak.

Description

A kind of backlight module with high brightness laser site formula light guide plate
Technical field
The utility model relates to the technical field of light guide plate, is specifically related to a kind of backlight module with high brightness laser site formula light guide plate.
Background technology
In display device, taking liquid crystal display as example, because liquid crystal itself is not luminous, it need to provide backlight module to make liquid crystal display can normally show image, the light source that requires backlight module high brightness to be provided and to be evenly distributed, therefore be everlasting before the light source of backlight module and add that light guide plate, diffuser plate are so that light is taken in liquid crystal panel uniformly, thereby improve image quality; And in light fixture, add that electric light source is become uniform area source by light diffusing sheet, thus avoid the even permanent injury of dazzle discomfort that human eye is caused, to reach higher lighting quality.
And current light guide plate is generally to stamp light guiding points (site) at the acryl sheet material bottom surface of optical grade UV screen printing technology, its manufacture craft is loaded down with trivial details, and the quality of printing will directly affect the light guide effect of light guide plate.
Utility model content
The utility model is for the problems of the prior art, a kind of backlight module with high brightness laser site formula light guide plate is provided, utilize the mode of laser dotting to get ready at the light guide plate upper surface of the thick intermediate thin in both sides, the concave point of the site formula of formation, light guide effect is good.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of backlight module with high brightness laser site formula light guide plate, it is characterized in that, it comprises the diaphragm, brightness enhancement film, diffusion barrier, light guide plate and the reflecting piece that set gradually, the evenly distributed high density concave point of site formula that described light guide plate upper surface forms by laser dotting, described light guide plate is the thin integrated guide tabula rasa in thick center, both sides, its xsect is symmetrically arranged two right-angled trapezium, and the upper base of two right-angled trapezium overlaps; Described backlight module also comprises two groups of LED lamps, is separately positioned on the both sides of light guide plate, goes to the bottom near right-angled trapezium, is coated with reflection diaphragm in LED lamp outside.Dot density is high, makes luminous energy efficiency higher, and brightness is higher, and light guide effect is better.
Described concave point be shaped as circle or regular pentagon.
Above diaphragm, be also provided with two-layer Rhizoma Sparganii thin plate, the seamed edge of this two-layer Rhizoma Sparganii thin plate is mutually vertical.
Described backlight module is square, and described LED lamp is rectilinear LED lamp.
Described backlight module is circular, the LED lamp that described LED lamp is circular arc.
The utility model has the advantage of, the utility model is by the mode of laser dotting, and on both sides, the thin light guide plate upper surface in thick center forms the equally distributed high density circle of site formula or regular pentagon concave point, leaded light is more even, transmittance can reach more than 93%, long service life, and light guide effect is better, the in the situation that of equal brightness, can use thinner light guide plate, cost-saving, in same homalographic luminosity situation, luminescence efficiency is higher, and power consumption is lower.The concave point design of site formula, makes light guide plate no dark space, not light leak.The mode of laser dotting, than silk-screen in the past, engraving more flexibly, better effects if.
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
brief description of the drawings
The sectional structure schematic diagram of the part-structure of the backlight module that Fig. 1 provides for the present embodiment;
The perspective view of the part-structure of the backlight module that Fig. 2 provides for the present embodiment;
The one-piece construction schematic diagram of the light guide plate that Fig. 3 provides for the present embodiment;
Fig. 4 is provided with regular pentagon concave point light conducting plate structure schematic diagram for what the present embodiment provided;
Fig. 5 is provided with circular concave point light conducting plate structure schematic diagram for what the present embodiment provided.
In figure: 1. diaphragm, 2. brightness enhancement film, 3. diffusion barrier, 4. light guide plate, 41. concave points, 5. reflecting piece, 6. Rhizoma Sparganii thin plate, 7.LED lamp.
Embodiment
Embodiment, referring to Fig. 1 ~ Fig. 5, the backlight module with high brightness laser site formula light guide plate 4 that the present embodiment provides, it comprises the diaphragm 1 setting gradually, brightness enhancement film 2, diffusion barrier 3, light guide plate 4 and reflecting piece 5, above diaphragm 1, be also provided with two-layer Rhizoma Sparganii thin plate 6, the seamed edge of this two-layer Rhizoma Sparganii thin plate 6 is mutually vertical, evenly distributed highdensity circle or the regular pentagon concave point 41 of site formula that described light guide plate 4 upper surfaces form by laser dotting, described light guide plate 4 is the thin integrated guide tabula rasa 4 in thick center, both sides, its xsect is symmetrically arranged two right-angled trapezium, and the upper base of two right-angled trapezium overlaps, described backlight module also comprises two groups of LED lamps 7, is separately positioned on the both sides of light guide plate 4, near bottom under right-angled trapezium, is coated with reflection diaphragm in LED lamp 7 outsides.Dot density is high, makes luminous energy efficiency higher, and brightness is higher, and light guide effect is better.The present embodiment is by the mode of laser dotting, on both sides, thin light guide plate 4 upper surfaces in thick center form the equally distributed high density circle of site formula or regular pentagon concave point 41, the in the situation that of light guide plate 4 equal size, the present embodiment monoblock light guide plate 4 is equivalent to be divided into two seamless spliced forming of light guide plate 4, make the light guide effect of a light guide plate 4 be equivalent to the light guide effect sum of two little light guide plate 4, the leaded light of light guide plate 4 is more even, transmittance can reach more than 93%, long service life, light guide effect is better, the in the situation that of equal brightness, can use thinner light guide plate 4, cost-saving, in same homalographic luminosity situation, luminescence efficiency is higher, power consumption is lower.The concave point 41 of site formula designs, and makes light guide plate 4 no dark spaces, not light leak.The mode of laser dotting, than silk-screen in the past, engraving more flexibly, better effects if.
Described backlight module is preferably square, and described LED lamp 7 is rectilinear LED lamp 7.Described backlight module is preferably circle, the LED lamp 7 that described LED lamp 7 is circular arc.The shape of backlight module is various, can according to client require customized, and manufacture craft is simple more than silk-screen, engraving in the past, only need be according to the shape of light guide plate, adjust the relevant parameter of laser dotting machine, can realize the making of difform light guide plate, thereby be made into difform backlight module.
The utility model is not limited to above-mentioned embodiment, adopts or approximate construction identical with the utility model above-described embodiment, and other backlight modules with high brightness laser site formula light guide plate that obtain, all within protection domain of the present utility model.

Claims (5)

1. the backlight module with high brightness laser site formula light guide plate, it is characterized in that, it comprises the diaphragm, brightness enhancement film, diffusion barrier, light guide plate and the reflecting piece that set gradually, the evenly distributed concave point of site formula that described light guide plate upper surface forms by laser dotting, described light guide plate is the thin integrated guide tabula rasa in thick center, both sides, its xsect is symmetrically arranged two right-angled trapezium, and the upper base of two right-angled trapezium overlaps; Described backlight module also comprises two groups of LED lamps, is separately positioned on the both sides of light guide plate, goes to the bottom near right-angled trapezium, is coated with reflection diaphragm in LED lamp outside.
2. the backlight module with high brightness laser site formula light guide plate according to claim 1, is characterized in that, described concave point be shaped as circle or regular pentagon.
3. the backlight module with high brightness laser site formula light guide plate according to claim 1, is characterized in that, is also provided with two-layer Rhizoma Sparganii thin plate above diaphragm, and the seamed edge of this two-layer Rhizoma Sparganii thin plate is mutually vertical.
4. the backlight module with high brightness laser site formula light guide plate according to claim 1, is characterized in that, described backlight module is square, and described LED lamp is rectilinear LED lamp.
5. the backlight module with high brightness laser site formula light guide plate according to claim 1, is characterized in that, described backlight module is circular, the LED lamp that described LED lamp is circular arc.
CN201420276899.5U 2014-05-28 2014-05-28 A kind of backlight module with high brightness laser site formula light guide plate Expired - Fee Related CN203965766U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420276899.5U CN203965766U (en) 2014-05-28 2014-05-28 A kind of backlight module with high brightness laser site formula light guide plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420276899.5U CN203965766U (en) 2014-05-28 2014-05-28 A kind of backlight module with high brightness laser site formula light guide plate

Publications (1)

Publication Number Publication Date
CN203965766U true CN203965766U (en) 2014-11-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107644601A (en) * 2016-07-22 2018-01-30 日立空调·家用电器株式会社 Display device and the refrigerator for possessing the display device
CN108581213A (en) * 2018-05-03 2018-09-28 东莞运城制版有限公司 A kind of laser of light guide plate directly carves processing technology
CN109445187A (en) * 2018-12-25 2019-03-08 厦门天马微电子有限公司 A kind of backlight module and display device
CN110546430A (en) * 2017-09-30 2019-12-06 厦门市三安光电科技有限公司 Laser packaging structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107644601A (en) * 2016-07-22 2018-01-30 日立空调·家用电器株式会社 Display device and the refrigerator for possessing the display device
CN110546430A (en) * 2017-09-30 2019-12-06 厦门市三安光电科技有限公司 Laser packaging structure
CN108581213A (en) * 2018-05-03 2018-09-28 东莞运城制版有限公司 A kind of laser of light guide plate directly carves processing technology
CN109445187A (en) * 2018-12-25 2019-03-08 厦门天马微电子有限公司 A kind of backlight module and display device

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141126

Termination date: 20160528