CN2572429Y - High-efficient uniform illumination device - Google Patents

High-efficient uniform illumination device Download PDF

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Publication number
CN2572429Y
CN2572429Y CN 02205116 CN02205116U CN2572429Y CN 2572429 Y CN2572429 Y CN 2572429Y CN 02205116 CN02205116 CN 02205116 CN 02205116 U CN02205116 U CN 02205116U CN 2572429 Y CN2572429 Y CN 2572429Y
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CN
China
Prior art keywords
light
guide plate
light guide
light source
white
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Expired - Lifetime
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CN 02205116
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Chinese (zh)
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宋义
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Individual
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Individual
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Abstract

The utility model relates to a high-efficient uniform illumination device which comprises a light source, a light guide plate and a white light adhesive layer in the light guide plate, wherein, the light source is arranged on the lateral part of the light guide plate, and the white light adhesive layer is arranged in anywhere in paths through which light in the light guide plate can pass directly or indirectly. After the light in the light source penetrates through the white light adhesive layer which can also be known as a light changing wall and becomes white light, or is reflected by the white light adhesive layer, light passing through the uniform part of light guide plate and then guided out becomes white with the color coordinate that X is from 0.160 to 0.450 and Y is from 0.15 to 0.40, or is in any combination of white light with the values of X and Y within the same range. When the utility model is designed into a backlight source, the surface of the light guide plate not emitting light indirectly is designed into a concave convex surface or is printed into any geometric form for reflecting light, or focusing light, or absorbing light, or for combined functions of light reflecting, focusing and absorbing, and a reflecting film is arranged on the surface. The surface of the light guide plate emitting light directly can be designed into a smooth mirror surface, or a hair side, or a rough surface, or the surface with various geometrical patterns, or the surface of the light guide plate is additionally provided with at least one diffusion film or a light reinforcing film or a light changing film.

Description

The uniform lighting device of high-level efficiency
Technical field
The utility model relates to the uniform lighting device of a kind of high-level efficiency, especially for the lighting device of LCD (hereinafter to be referred as LCD) flat panel display system or be used for indoor outer domestic lighting product or the commercial illuminating product or the uniform lighting device of high-level efficiency of Pointing sign board product or plate with trademark product.
Background technology
The uniform lighting device of high-level efficiency mainly is made up of local fill " white light glue " in light source, light guide plate and the light guide plate.When being applied to the LCD lighting device, domestic and international existing white background illuminating source and front light source are normally added light guide plate and are formed by white light-emitting diode (LED or white SMT) light source, if white light-emitting diode (LED) or white SMT (LED) light source are inhomogeneous, then backlight or the front light-source of producing by light guide plate is just inhomogeneous.The way of international popular is that white light-emitting diode (LED) or white SMT (LED) light source are selected its consistance by automatic fraction collector at present, if but want several electric parameters one several on all four products of parameter that fill of making peace are selected and combined, producing medium-to-high grade backlight or front light-source or medium-to-high grade light fixture or label is the comparison difficulty.Because also being stepping, automatic fraction collector selects.Because also broad of the more distribution range of parameter, wanting even more just the needs divides many more shelves, remedies " inadequate natural endowment ", and cost is just than higher like this, and production is also difficult.
Summary of the invention
The purpose of this utility model provides the uniform lighting device of a kind of high-level efficiency.This illuminating device luminous effect very evenly and to save the energy, life-span long.
The purpose of this utility model is achieved in that the uniform lighting device of a kind of high-level efficiency, comprise: light source, light guide plate and white light glue, it is characterized in that placing light source at the one or more side of light guide plate or side angle, described white light glue is filled in light directly or indirectly passes through in the light guide plate path Anywhere.
Because a surface of light guide plate is a male and fomale(M﹠F), another surface is smooth mirror surface or " hair side " or prism facets or arbitrary face, wherein said white light glue is filled in the pit or groove or through hole or groove of light guide plate in the path that " light " can pass through in the light guide plate in light source the place ahead, since these pits or groove or through hole or groove in a kind of light guide plate fully can or the same size dimension, after they add the white light glue of same density, can form one and " become the light wall " fully uniformly, when the photoelectric parameter of light source is basic identical, and luminescence efficiency is higher." become light wall " in the light guide plate or fuse with light source or leave certain distance with light source.
The utility model is mainly used in the main backlight and the front light-source of various monochromes and colour liquid crystal display device (hereinafter to be referred as LCD), TN for example, LCD such as STNT TFT go up and household electrical appliance, and communication products need on computer monitor and the various instrument and meter to show or the place of indication or decorative lighting.
The utility model also can be used on various illuminations or decorative product or branded goods or the Pointing sign board product.For example, various indoor outer lightings, indoor outer decorative lamp, lamp for lawn, escape way Pointing sign board etc.
In above-mentioned all application products, when not adding " becoming the light wall " (white light glue) in the light guide plate, the color wavelength of the light that its light guide plate is outwards sent and the color wavelength of light source are basic identical.
The utility model has the advantages that: make illumination and decorative light-source and trade mark and label more evenly attractive in appearance, all even stability of white backlight source and front light-source lighting device particularly, the consistance height, and can improve luminescence efficiency, and reduce energy resource consumption, reduce cost.
Below in conjunction with accompanying drawing the utility model is elaborated:
Description of drawings
Fig. 1-1 and Fig. 1-2 are the synoptic diagram of the utility model first embodiment, have shown the structure of light guide plate and luminescence component (comprising FPC or PCB2 and light source 3) (can be referred to as light source) and white light glue (become light wall) 4, Fig. 1-the 1st wherein, front elevation; Fig. 1-2 is the cut-open view along the A-A section of Fig. 1-1;
Fig. 2-1 and Fig. 2 the-the 2nd, and the synoptic diagram of the utility model second embodiment has shown the structure of light guide plate 1 with luminescence component (comprising FPC or PCB2 and light source 3) and white light glue (becoming the light wall) 4; Fig. 2-the 1st wherein, front elevation; Fig. 2-the 2nd is along the cut-open view of the A-A line section of Fig. 2-1;
Fig. 3-1 and Fig. 3 the-the 2nd, and the synoptic diagram of the utility model the 3rd embodiment has shown the structure of light guide plate 1 with luminescence component (comprising FPC or PCB2 and light source 3) and white light glue (becoming the light wall) 4; Fig. 3-the 1st wherein, front elevation; Fig. 3-the 2nd is along the cut-open view of the A-A line section of Fig. 3-1;
Fig. 4-1 and Fig. 4 the-the 2nd, and the synoptic diagram of the utility model the 4th embodiment has shown the structure of light guide plate 1 with luminescence component (comprising FPC or PCB2 and light source 3) and white light glue (becoming the light wall) 4; Fig. 4-the 1st wherein, front elevation; Fig. 4-the 2nd is along the cut-open view of the A-A line section of Fig. 4-1;
Fig. 5-1 and Fig. 5 the-the 2nd, and the synoptic diagram of the utility model the 5th embodiment has shown the structure of light guide plate 1 with luminescence component (comprising FPC or PCB2 and light source 3) and white light glue (becoming the light wall) 4; Fig. 5-the 1st wherein, front elevation; Fig. 5-the 2nd is along the cut-open view of the A-A line section of Fig. 5-1;
Fig. 6-1 and Fig. 6 the-the 2nd, and the synoptic diagram of the utility model the 6th embodiment has shown the structure of light guide plate 1 with luminescence component (comprising FPC or PCB2 and light source 3) and white light glue (becoming the light wall) 4; Fig. 6-the 1st wherein, front elevation; Fig. 6-the 2nd is along the cut-open view of the A-A line section of Fig. 6-1;
Fig. 7-1 and Fig. 7 the-the 2nd, and the synoptic diagram of the utility model the 7th embodiment has shown the structure of light guide plate 1 and luminescence component (comprising FPC or PCB2 and light source 3) and white light glue (change light wall) 4, Fig. 7-the 1st wherein, front elevation; Fig. 7-the 2nd is along the cut-open view of the A-A line section of Fig. 7-1;
Fig. 8-1 and Fig. 8 the-the 2nd, and the synoptic diagram of the utility model the 8th embodiment has shown the structure of light guide plate 1 and luminescence component (comprising FPC or PCB2 and light source 3) and white light glue (change light wall) 4, Fig. 8-the 1st wherein, front elevation; Fig. 8-the 2nd is along the cut-open view of the A-A line section of Fig. 8-1;
Fig. 9 is the synoptic diagram of the utility model the 9th embodiment, has shown light guide plate 1 and luminescence component (light source 3 or LED3) and white light glue (becoming the light wall) 4 or has not had the structure of white light glue (not having change light wall);
Figure 10 is the synoptic diagram of the utility model the tenth embodiment, has shown light guide plate 1 and luminescence component (light source 3 or LED3) and white light glue (becoming the light wall) 4 or has not had the structure of white light glue (not having change light wall).
Embodiment
The uniform lighting device of novel efficient described in the utility model comprises: white light glue-line in light source 3, light guide plate 1 and the light guide plate 1 or white light film (general designation white light glue 4) or light guide plate upper surface are placed white light film or light guide plate lower surface placement white light film or are not had any white light glue.The one or more side or the side angle of light guide plate have the placement light source; white light glue or white light film are arranged on " light " can directly or indirectly pass through in the light guide plate Lu Jingzhong Anywhere, the surface of non-convex-concave surface that outwards directly sends of a light of light guide plate 1 or printing net-point or place reflection diaphragm or diaphragm or other any diaphragm or do not have any diaphragm on this surface of light guide plate.The surface that another light outwards directly sends is minute surface or hair side or prism facets or random geometry face or antireflection face or places diffusion barrier sheet more than one or one on this surface or the mixing or do not have any diaphragm of add lustre to diaphragm or diffusion barrier sheet and the diaphragm that adds lustre to more than one or one.Wherein, described white light glue 4 is filled in the path that " light " can directly or indirectly pass through in the light guide plate Anywhere.
White light glue 4 is the materials that a kind of light source activation of color become " white light ", and the color coordinate scope of " white light " is: X=0.160-0.45; Y=0.150-0.400 or in these scopes X, Y value any " white light " combination.The wavelength coverage of the light source of other any color is: go into P=300nm-800nm, or the mixture light source of monochromatic wavelength or more than one wavelength.
The one or more side of light guide plate 1 or side angle have a light source or more than one light source, do one " becoming the light wall " in the light guide plate on the path that " light " of light source passes through, this " becomes the light wall " is exactly to make with " white light glue ", after " light " " becomes the light wall " by this, just become and be white light, the thickness of " become light wall " is 0.03mm-10mm, and the height of " becoming the light wall " is less than or equal to or greater than the thickness of light guide plate." become light wall " width more than or equal to or less than the width of single or whole light source, or be less than or equal to or greater than the width or the length of light guide plate.Being shaped as " the becoming the light wall " in the arc surface bodily form or cuboid or other arbitrary shape light guide plate or fusing with light source or leave certain distance of " become light wall " with light source.
The material that is filled in the light guide plate " change light wall " is a white light glue, and white light glue is the light source activation of one or more wavelength can be become any material of white light and the potpourri of any glue by a kind of." becoming the light wall " also can be a kind of change ray film.Become any position that ray film can be placed on light guide plate, make all directly or indirectly become " white light " through the light of " change ray film ".The thickness that becomes ray film is 0.01mm-5mm, the area that becomes ray film be less than or equal to or greater than the sectional area of light guide plate less than or more than or equal to the surface area of light guide plate.Shape can be an arbitrary shape.
When not placing white light glue-line (becoming the light wall) on light guide plate, the utility model sends the light with the same color of light source, and the ripple of light source is gone into P=300nm-800nm.Its light guide plate be shaped as rectangular the bodily form or the square bodily form or the anchor ring bodily form or the arc surface bodily form or the elliptical area bodily form or other random geometries.
The pit of the male and fomale(M﹠F) of light guide plate (the non-surface of directly outwards sending of light) or the shape and the size of projecting surface, it is shaped as the synthetic of circular or square or rectangle or line strip or arc or random geometry, and its size is the size of the combination of 0.002-10mm or different size or some or an above direction or is less than or equal to or greater than the length or the width of light guide plate.Its degree of depth or height dimension are 0.002-10mm or are less than or equal to or greater than the thickness of light guide plate.Arrangement mode is arranged according to certain rules according to the size of luminous its concave-convex type of homogeneity and shape and brightness.The size of routine concave-convex type from the near more light guide plate of light source is just more little or thin more, and is just big more or close more from the size of the concave-convex type of light source light guide plate far away more.
The male and fomale(M﹠F) of light guide plate also can replace with the mode of the mixing Material Used that prints reflective (or extinction) or extinction and reflectorized material, its geometric configuration and physical dimension, and size and density are arranged according to luminous homogeneity.
Below in conjunction with accompanying drawing 1-1 to Figure 10 structure of the present utility model is further described.
Referring to Fig. 1-1 and Fig. 1-2, in first embodiment, luminescence component is made up of hard wiring board PCB or soft wiring board PCB 2 and light source 3, and wherein light source 3 is arranged on the wiring board 2. Luminescence component 2 and 3 and white light glue 4 be to be placed on 1 of light guide plate 1 and 2 side angles, the white light glue 4 in its light guide plate 1 (becoming the light wall) is drawing, and white light glue 4 has certain distance with light source 3.
Referring to Fig. 2-1 and Fig. 2-2, in a second embodiment, luminescence component is made up of hard wiring board PCB or soft wiring board PCB2 and light source 3, and wherein light source 3 is arranged on the wiring board 2.Luminescence component and white light glue are 1 side angles that is placed on light guide plate, white light glue (become light wall) the 4th wherein, and planar rectangular, and white light glue 4 has certain distance with light source 3.
Referring to Fig. 3-1, Fig. 3-2, Fig. 4-1 and Fig. 4-2, luminescence component is made up of hard wiring board PCB or soft wiring board PCB 2 and light source 3, and wherein light source 3 is arranged on the wiring board 2.In the 3rd embodiment, luminescence component and white light glue 4 are to be placed on the side angle of light guide plate 1; In the 4th embodiment, luminescence component and white light glue 4 are to be placed on 2 side angles of light guide plate.In these two embodiment, the outer of white light glue (becoming the light wall) 4 is arc surface shapes, and white light glue 4 is closely connected together with light source 3 or LED3 in the light guide plate 1.
Referring to Fig. 5-1, Fig. 5-2, Fig. 6-1 and Fig. 6-2, luminescence component is made up of hard wiring board PCB or soft wiring board PCB2 and light source 3, and wherein light source 3 is arranged on the wiring board 2.In the 5th embodiment, luminescence component more than 1 and white light glue are to be placed on the side of light guide plate, and in the 6th embodiment, light source assembly more than 1 and white light glue are to be placed on 2 sides of light guide plate.In these two embodiment, white light glue (becoming the light wall) the 4th, cuboid, and white light glue 4 has certain distance with light source 3.
Referring to Fig. 7-1, Fig. 7-2, Fig. 8-1 and Fig. 8-2, luminescence component is made up of hard wiring board PCB or soft wiring board PCB2 and light source 3, and wherein light source 3 is arranged on the wiring board 2.In the 7th embodiment, 1 above light source 3 is sides that are placed on light guide plate 1 with white light glue 4.In the 8th embodiment, 1 above light source 3 is to be placed on two sides of light guide plate with white light glue 4.In these two embodiment, white light glue 4 is closely connected together with light source assembly.
Referring to Fig. 9, the light guide plate 1 of the 9th embodiment is the annulus bodily form, and the light guide plate 1 of the tenth embodiment is the plane body rectangle, and others and above-mentioned first to the 8th embodiment are basic identical, and leaded light 1 plate can also be the arc surface bodily form, various geometric configuratioies such as bodily form of curved surface.In addition, in these two embodiment, the light that light guide plate 1 is sent can also be the light source true qualities.
More than all light sources 3 can comprise: light sources such as incandescent lamp, CCFL lamp, LED, OEL, OLED.

Claims (10)

1, the uniform lighting device of a kind of high-level efficiency, comprise: light source, light guide plate and white light glue, it is characterized in that placing light source at the one or more side or the side angle of light guide plate, described white light glue is filled in light guide plate upper surface or the lower surface that is positioned in the light guide plate on the opticpath.
2, the uniform lighting device of high-level efficiency according to claim 1 is characterized in that placing reflection diaphragm or diaphragm on the light guide plate surface.
3, the uniform lighting device of high-level efficiency according to claim 1, a surface that it is characterized in that light guide plate are the non-convex-concave surface that directly outwards sends of light or the surface of printing net-point; Another surface is minute surface or hair side or the prism facets that light directly outwards sends.
4, the uniform lighting device of high-level efficiency according to claim 1 is characterized in that white light glue is the material that a kind of light source activation of color is become " white light "; The color coordinate scope of described " white light " is: X=0.160-0.45; Y=0.150-0.400.
5, the uniform lighting device of high-level efficiency according to claim 1 is characterized in that the wavelength coverage of light source is: λ p=300nm-800nm, or monochromatic wavelength; Perhaps light source is the hybrid light source of above-mentioned wavelength.
6, the uniform lighting device of high-level efficiency according to claim 1 or 5 is characterized in that the one or more side of light guide plate or side angle have a light source or more than one light source; The thickness of described white light glue is 0.03mm-10mm; White light glue in the light guide plate and light source fuses or leave certain distance with light source.
7,, it is characterized in that white light glue is the light source activation of one or more wavelength can be become the material of white light and the potpourri of glue by a kind of according to claim 1 or the uniform lighting device of 4 described high-level efficiency.
8, according to claim 1 or the uniform lighting device of 4 described high-level efficiency, it is characterized in that white light glue is a kind of change ray film, this change ray film is placed on the light guide plate; The thickness that becomes ray film is 0.01mm-5mm, and the area that becomes ray film equals the surface area of light guide plate.
9, according to claim 1 or the uniform lighting device of 3 described high-level efficiency, it is characterized in that the pit or the projecting surface of the male and fomale(M﹠F) of light guide plate is of a size of 0.002-10mm, its degree of depth or height dimension are 0.002-10mm.
10,, it is characterized in that of the material replacement of the male and fomale(M﹠F) of light guide plate with the reflective/light absorbent of printing or its mixing according to claim 1 or the even lighting device of 3 described high-level efficiency.
CN 02205116 2002-02-10 2002-02-10 High-efficient uniform illumination device Expired - Lifetime CN2572429Y (en)

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CN 02205116 CN2572429Y (en) 2002-02-10 2002-02-10 High-efficient uniform illumination device

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CN 02205116 CN2572429Y (en) 2002-02-10 2002-02-10 High-efficient uniform illumination device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1997922B (en) * 2004-04-30 2011-01-12 厄伊莫迪里斯有限公司 Ultrathin lighting element
WO2011047513A1 (en) * 2009-10-19 2011-04-28 深圳帝光电子有限公司 High brightness led lamp
CN102375548A (en) * 2010-08-18 2012-03-14 深圳富泰宏精密工业有限公司 Keyboard module group

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1997922B (en) * 2004-04-30 2011-01-12 厄伊莫迪里斯有限公司 Ultrathin lighting element
WO2011047513A1 (en) * 2009-10-19 2011-04-28 深圳帝光电子有限公司 High brightness led lamp
CN102375548A (en) * 2010-08-18 2012-03-14 深圳富泰宏精密工业有限公司 Keyboard module group

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C17 Cessation of patent right
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Expiration termination date: 20120210

Granted publication date: 20030910