CN1588207A - Back light module with light source combination and back light color switching - Google Patents

Back light module with light source combination and back light color switching Download PDF

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Publication number
CN1588207A
CN1588207A CNA2004100622256A CN200410062225A CN1588207A CN 1588207 A CN1588207 A CN 1588207A CN A2004100622256 A CNA2004100622256 A CN A2004100622256A CN 200410062225 A CN200410062225 A CN 200410062225A CN 1588207 A CN1588207 A CN 1588207A
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China
Prior art keywords
light source
light
backlight
leaded
tool
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CNA2004100622256A
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Chinese (zh)
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CN100489625C (en
Inventor
王志源
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Wintek Corp
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Wintek Corp
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Publication of CN100489625C publication Critical patent/CN100489625C/en
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Abstract

The invention discloses a backlight component with the functions of light source combination and backlight color conversion, at least including a light guide component, a light source and a color conversion layer coating the light source, where the light guide component is made of transparent substrate and has a light outgoing surface, one surface of the light guide component opposite to the light outgoing surface is defined as a light guide surface, the light guide component has a light incident surface adjacent to the light outgoing surface and the light guide surface, the light incident surface is provided with a groove corresponding to the light source for the light source to be combined in the groove, the color conversion layer is composed of a solid power material and a high molecular adhesive, where the solid power material has a preset color for converting the color of the light source. As the light emitted from the light source enters the light guide component, it can reduce the photopermeability losses of the light source so as to achieve the brightening effect.

Description

The tool light source in conjunction with the backlight assembly of look conversion backlight
Technical field
The present invention relates to a kind of tool light source in conjunction with the backlight assembly of look conversion backlight.
Background technology
As shown in Figure 4, structural representation for the LCD commonly used, it includes one group of backlight assembly 8 and one group of LCD MODULE 9, this backlight assembly 8 then has a light guide plate 81, this light guide plate 81 has an incidence surface 811, and to being provided with a light source 82 and a reflection shield 83 by incidence surface 811.
When the light of light source 82 penetrates, understanding some light is entered in the light guide plate 81 by the incidence surface 811 of light guide plate 81 through air, another light partly then can be incident upon reflection shield 83 through air, and reflection is entered in the light guide plate 81 by the incidence surface 811 of light guide plate 81 through air again.Yet, the refractive index n 1 of air dielectric, and the refractive index n 1.5~1.6 of light guide plate 81, therefore, when light advances light guide plate 81 in by air, be easy to lose penetrability because of the boundary reflection problem, and then influence the briliancy of light guide plate 81 bright dippings (promptly backlight), dark attitude increases when causing LCD MODULE 9 outputs.
Especially working as LCD MODULE 9 is the form persons with variable color film, because general variable color film just oozes the colorant that is mixed with predetermined color, though can be by mixed light effect conversion backlight color, but, colorant itself promptly has the resistance optical activity and inhales optical activity, therefore, in the conversion backlight color, also can reduce briliancy backlight, add the problem of the aforementioned loss penetrability that causes because of boundary reflection, this can make the dark attitude of LCD more add hurriedly, and the sharpness when being unfavorable for watching, so aforementioned structure has necessity of being improved in fact.
Summary of the invention
The present invention's fundamental purpose when being to provide a kind of light that sends at light source to enter in this leaded light component, can reduce the penetrability loss of light source, and can reach the backlight assembly of the combination of tool light source with the look conversion backlight of blast effect.
The present invention's a time purpose is to provide a kind of backlight assembly that reaches the combination of tool light source with the look conversion backlight of look conversion effect.
The present invention's a purpose again, being to provide a kind of can carry out in the process of look conversion in light source, reaches the backlight assembly of the combination of tool light source with the look conversion backlight of blast effect.
The present invention's another purpose, be to provide in a kind of groove that light source can be directly fixed on leaded light component the tool light source in conjunction with the backlight assembly of look conversion backlight.
For achieving the above object, the present invention takes following design proposal: the backlight assembly of a kind of tool light source combination, it is characterized in that: it comprises a leaded light component and a light source at least, this leaded light component system is made by transparent base, and this leaded light component has an exiting surface, and this leaded light component simultaneously is defined as a light guiding surface with respect to this exiting surface, and this leaded light component has an incidence surface in abutting connection with this exiting surface and this light guiding surface, this incidence surface is concaved with a groove to shape that should light source, is incorporated in this groove for light source.
A kind of tool light source in conjunction with the backlight assembly of look conversion backlight, it is characterized in that: it comprises a leaded light component at least, one light source and coat one of this light source color converting layer, this leaded light component system is made by transparent base, and this leaded light component has an exiting surface, and this leaded light component simultaneously is defined as a light guiding surface with respect to this exiting surface, and this leaded light component has an incidence surface in abutting connection with this exiting surface and this light guiding surface, this incidence surface is to being concaved with a groove by light source, in order to do being incorporated in this groove for light source, and this color converting layer system is made up of a solid powder material and a high polymer binder, and this solid powder material has predetermined color, in order to do the color for this light source of conversion.
The invention has the beneficial effects as follows:
1. because the incidence surface corresponding light source of this leaded light component is concaved with a groove, and so that light source is incorporated in the groove, the light that this light source is sent directly enters in this leaded light component, reducing the penetrability loss of light source, and can reach the effect of blast.
2. this light source outer rim is coated with one deck color converting layer, and this color converting layer dyes predetermined color is arranged, and can reach the effect of look conversion.
3. the luminous material of light that has predetermined color in this color converting layer, and can carry out in the process of look conversion in light source, reach the effect of blast.
4. the color converting layer that coats this light source has high polymer binder, and light source can be directly fixed in the groove of this leaded light component.
Description of drawings
Fig. 1 is the present invention's three-dimensional exploded view
Fig. 2 is the cross-sectional schematic of structure of the present invention
Fig. 3 is the opticpath synoptic diagram of light source of the present invention
Fig. 4 is structural representation and an opticpath synoptic diagram of commonly using LCD
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, a kind of tool light source of the present invention in conjunction with the backlight assembly of look conversion backlight, it comprises a leaded light component 1, a light source 2 at least and coats one of this light source color converting layer 3, and this backlight assembly system cooperates a LCD MODULE 4 to use.This light source 2 is several light emitting diodes that encapsulated (LED) 21 in present embodiment, this leaded light component 1 is to be made by transparent base, and this leaded light component 1 has an exiting surface 11, and this leaded light component 1 simultaneously is defined as a light guiding surface 12 with respect to this exiting surface 11, and this leaded light component 1 has an incidence surface 13 in abutting connection with this exiting surface 11 and this light guiding surface 12,13 pairs of this incidence surfaces should light source 2 each light emitting diode 21 be concaved with a groove 14 respectively, be incorporated into respectively in this groove 14 in order to do each light emitting diode 21 for light source 2.
And this color converting layer 3 is to be mixed with a high polymer binder by a solid powder material to form, make each light emitting diode 21 of this light source 2 can be by the high polymer binder of this color converting layer 3 in conjunction with being fixed in respectively in this groove 14, and in present embodiment, this solid powder material system becomes with luminous material of a light and light diffusion powder combined group, and the luminous material of this light is the person that has the predetermined color, in order to do the color for this light source of conversion.And this light spread powder system is acryl powder, TiO 2, SiO 2, BaTiO 3Wait one of them, and its concentration is 10%~50% percentage by weight.
Again, this high polymer binder is epoxy resin, polyamide resin, acryl resin, vibrin, polyether resin, halogen-containing resin, rubber, contain silicones, celluosic resin etc. one of them, and its concentration is 20%~90% percentage by weight.
Because each light emitting diode 21 of the present invention's light source 2 is in conjunction with being fixed in respectively in this groove 14 by the high polymer binder of this color converting layer 3, and the refractive index of this color converting layer 3 is close to identical with the refractive index of light guide plate 1, therefore, the light system that each light emitting diode 21 sent directly passes color converting layer 3 and enters in the light guide plate 1, as shown in Figure 3, so opticpath just can be because of the refractive index difference of medium, and the problem of generation boundary reflection phenomenon and then loss penetrability, compared to known techniques, the present invention obviously has the effect of blast.
Moreover, the luminous material of light in the present invention's the color converting layer 3 is the person that has the predetermined color, therefore, when light process color converting layer 3, not only can convert the light mixed light to predetermined color, reach function (as: the orange color converting layer of tangerine of look conversion, convertible blue-light source LED becomes white light, briliancy is 3 times to 8 times of original blue briliancy, the effect of intrinsic increase brightness), more because the luminous material of light can absorb the light of specific wavelength, and release light (as: fluorescent effect), not only make the present invention's color converting layer 3 can not reduce briliancy,, and can make the output of LCD MODULE 4 reach the effect of blast more because of the luminous material of light can discharge light because of shading and extinction.
In addition, the light source that is used among the present invention also can be the light emitting diode (LED) of not encapsulation, and is encapsulated combination behind the groove that is embedded at leaded light component, so, also can reach the effect identical with previous embodiment.
In sum, the present invention can reach following effect:
1. because incidence surface 13 corresponding light sources 2 of this leaded light component 1 are concaved with a groove 14, with light source 2 are incorporated in the groove 14, and the light that this light source is sent directly enters in this leaded light component, to reduce light source Light transmittance loss, and can reach the effect of blast.
2. these light source 2 outer rims are coated with one deck color converting layer 3, and this color converting layer dyes predetermined color is arranged, and Can reach the effect of look conversion.
3. the luminous material of light that has predetermined color in this color converting layer 3, and the mistake that can carry out in light source the look conversion In the journey, reach the effect of blast.
4. the color converting layer 3 that coats this light source 2 has high polymer binder, and light source can be directly fixed on In the groove 14 of this leaded light component 1.

Claims (10)

1. the backlight assembly of tool light source combination, it is characterized in that: it comprises a leaded light component and a light source at least, this leaded light component system is made by transparent base, and this leaded light component has an exiting surface, and this leaded light component simultaneously is defined as a light guiding surface with respect to this exiting surface, and this leaded light component has an incidence surface in abutting connection with this exiting surface and this light guiding surface, and this incidence surface is concaved with a groove to shape that should light source, is incorporated in this groove for light source.
2. the backlight assembly of tool light source combination according to claim 1, it is characterized in that: this light source is the light emitting diode that has encapsulated.
3. the backlight assembly of tool light source combination according to claim 1, it is characterized in that: this light source is the light emitting diode that does not encapsulate, and is encapsulated combination be embedded at the groove of this leaded light component in light source after.
A tool light source in conjunction with the backlight assembly of look conversion backlight, it is characterized in that: it comprises a leaded light component at least, one light source and coat one of this light source color converting layer, this leaded light component system is made by transparent base, and this leaded light component has an exiting surface, and this leaded light component simultaneously is defined as a light guiding surface with respect to this exiting surface, and this leaded light component has an incidence surface in abutting connection with this exiting surface and this light guiding surface, this incidence surface is to being concaved with a groove by light source, in order to do being incorporated in this groove for light source, and this color converting layer system is made up of a solid powder material and a high polymer binder, and this solid powder material has predetermined color, in order to do the color for this light source of conversion.
As the tool light source as described in the claim 4 in conjunction with the backlight assembly of look conversion backlight, it is characterized in that: this solid powder material system is with luminous material of a light and light diffusion powder combined group one-tenth, and the luminous material of this light is to have predetermined color.
As the tool light source as described in the claim 4 in conjunction with the backlight assembly of look conversion backlight, it is characterized in that: this high polymer binder is epoxy resin, polyamide resin, acryl resin, vibrin, polyether resin, halogen-containing resin, rubber, contain silicones, celluosic resin etc. one of them, and its concentration is 20%~90% percentage by weight.
As the tool light source as described in the claim 4 in conjunction with the backlight assembly of look conversion backlight, it is characterized in that: this light source system is fixed in this groove by the high polymer binder combination of this color converting layer.
As the tool light source as described in the claim 4 in conjunction with the backlight assembly of look conversion backlight, it is characterized in that: this light source is the light emitting diode that has encapsulated.
As the tool light source as described in the claim 4 in conjunction with the backlight assembly of look conversion backlight, it is characterized in that: this light source is the light emitting diode that does not encapsulate, and is encapsulated combination be embedded at the groove of this leaded light component in light source after.
As the tool light source as described in the claim 5 in conjunction with the backlight assembly of look conversion backlight, it is characterized in that: this light spread powder system is acryl powder, TiO 2, SiO 2, BaTiO 3Wait one of them, and its concentration is 10%~50% percentage by weight.
CNB2004100622256A 2004-06-30 2004-06-30 Back light module combining light source and back light color switching function Expired - Fee Related CN100489625C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2004100622256A CN100489625C (en) 2004-06-30 2004-06-30 Back light module combining light source and back light color switching function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2004100622256A CN100489625C (en) 2004-06-30 2004-06-30 Back light module combining light source and back light color switching function

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CN1588207A true CN1588207A (en) 2005-03-02
CN100489625C CN100489625C (en) 2009-05-20

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101165561B (en) * 2006-10-18 2010-05-12 群康科技(深圳)有限公司 Backlight module group and liquid crystal display device
CN101943352A (en) * 2009-07-03 2011-01-12 友达光电(厦门)有限公司 Display device and backlight module thereof
US8206000B2 (en) 2009-03-27 2012-06-26 Au Optronics Corporation Hollow edge-type backlight module with light-emitting array
CN101520149B (en) * 2009-04-14 2013-04-10 友达光电股份有限公司 Hollow side light type backlight module with light-emitting array and display

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101165561B (en) * 2006-10-18 2010-05-12 群康科技(深圳)有限公司 Backlight module group and liquid crystal display device
US8206000B2 (en) 2009-03-27 2012-06-26 Au Optronics Corporation Hollow edge-type backlight module with light-emitting array
CN101520149B (en) * 2009-04-14 2013-04-10 友达光电股份有限公司 Hollow side light type backlight module with light-emitting array and display
CN101943352A (en) * 2009-07-03 2011-01-12 友达光电(厦门)有限公司 Display device and backlight module thereof

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Assignee: Dongguan Master LCD Monitors Co., Ltd.

Assignor: Shenghua Science and Technology Co., Ltd.

Contract record no.: 2010990000311

Denomination of invention: Back light module combining light source and back light color switching function

Granted publication date: 20090520

License type: Exclusive License

Open date: 20050302

Record date: 20100527

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: 20090520

Termination date: 20160630