CN206725894U

CN206725894U - Blooming piece and display device

Info

Publication number: CN206725894U
Application number: CN201720590823.3U
Authority: CN
Inventors: 陈蔚轩; 杨凯钧
Original assignee: Radiant Guangzhou Opto Electronics Co Ltd
Current assignee: Radiant Guangzhou Opto Electronics Co Ltd
Priority date: 2017-05-24
Filing date: 2017-05-24
Publication date: 2017-12-08
Anticipated expiration: 2027-05-24
Also published as: TWM553821U; JP3215902U

Abstract

A kind of blooming piece and display device are the utility model is related to, blooming piece is included into photosphere；Go out photosphere；Intermediate layer, positioned at it is described enter photosphere and it is described go out photosphere between, the intermediate layer has more several channel parts and more several lattices, the channel part and the lattice intermesh arrangement, the channel part have towards it is described enter photosphere first end with towards it is described go out photosphere the second end, the lattice have towards it is described enter photosphere the 3rd end with towards it is described go out photosphere the 4th end, the first end and the 3rd end by it is described enter photosphere contact masking, the second end and the 4th end by it is described go out photosphere contact masking.The utility model also provides a kind of display device using the blooming piece.

Description

Blooming piece and display device

Technical field

A kind of blooming piece and display device are the utility model is related to, high collimation light source can be produced more particularly to one kind Blooming piece and the display device applied.

Background technology

The application of liquid crystal display is extremely wide, including mobile phone, PDA, vehicle display, notebook computer, computer screen Curtain and LCD TV etc..However, TFT-LCD (TFT-LCD) display is non-spontaneous light type (non- Emission) display, it is necessary to which additional backlight module provides planar light source in addition to the liquid crystal panel that control interface is shown.As for Traditional side light type back light module forms planar light source using light guide plate, and main member leads in addition to light source, light guide plate, reflector plate Often separately include the mutually perpendicular light harvesting prismatic lens of two chip architectures (prism sheet) and be arranged above and below the two light harvestings prismatic lens Two sides, by two diffusion sheets (Diffuser) of the two light harvestings prismatic lens sandwiched therebetween, the usual abbreviation BEF of the light harvesting prismatic lens (Brightness Enhancement Film), its role is to limit light limit injection angle so that most light is in front Visual angle ± 22~25 degree are projected, and remaining light retroeflection is recycled into (recycling), reach light harvesting brightening effect, as this Diffusion sheet, which then has, spreads even smooth function, can reduce brightness (briliancy) inhomogeneities, and cover not train wave line (Moir é ) etc pattern optical defect.

Utilized in addition, tradition improves semi-penetrating trans (transflective) backlight light using lenticule spot mode Technology, or using the grating diffraction color dispersing technology substitution absorption colored filter of conventional dyes, to lift light utilization Technology, or produce using lens pillar diaphragm the stereo display technique (3D display) of binocular vision dislocation, only it is such Know that the joint demand of technology is high collimation exiting surface type backlight, however, conventional liquid crystal backlight module light extraction light field Full width at half maximum be about 30~50 degree, and the structure of the known high collimated back source technology for providing high collimated backlight is then excessively Complicated and difficulty in process, is unfavorable for volume production.

Utility model content

The purpose of this utility model is the display device for providing a kind of blooming piece of high collimation light source and being applied.

Then, the utility model blooming piece, including enter photosphere；Go out photosphere；Intermediate layer, positioned at it is described enter photosphere with it is described Go out between photosphere, the intermediate layer has more several channel parts and more several lattices, and the channel part and the lattice are mutual Staggered arrangement, the channel part have towards it is described enter photosphere first end with towards it is described go out photosphere the second end, The lattice have towards it is described enter photosphere the 3rd end with towards it is described go out photosphere the 4th end, the first end With the 3rd end by it is described enter photosphere contact masking, the second end and the 4th end by it is described go out photosphere institute Contact masking.

The utility model also provides a kind of display device, including aforementioned optical diaphragm, light source, optical sheet, and display surface Plate, wherein, the optical sheet receives light caused by the light source and is simultaneously converted to flat light source, the blooming piece it is described Enter photosphere towards the optical sheet, the light extraction aspect of the blooming piece is to the display panel.

Brief description of the drawings

Fig. 1 shows the sectional view of the blooming piece of first embodiment of the present utility model.

Fig. 2 shows the sectional view of the blooming piece of second embodiment of the present utility model.

Fig. 3 shows the sectional view of the display device of another embodiment of the present utility model.

Embodiment

In order that above-mentioned purpose of the present utility model, feature and advantage can be more obvious understandable, preferable reality will be hereafter enumerated Apply example and refer to the attached drawing is described in detail.

As shown in figure 1, the first embodiment of the utility model blooming piece 10, including enter photosphere 12；Go out photosphere 14；It is middle Layer 16, positioned at it is described enter photosphere 12 and it is described go out photosphere 14 between, the intermediate layer 16 have more several channel parts 161 with it is most Individual lattice 162, the channel part 161 and the lattice 162 intermesh arrangement, and the channel part 161 has towards institute State first end 163 into photosphere 12 with towards it is described go out photosphere 14 the second end 164, the lattice 162 have towards It is described enter photosphere 12 the 3rd end 165 with towards it is described go out photosphere 14 the 4th end 166, the first end 163 and institute State the 3rd end 165 by it is described enter photosphere 12 contact masking, the second end 164 and the 4th end 166 are described Go out photosphere 14 and contact masking.

Wherein, the width of the first end 163 is less than the width of the second end 164, the 3rd end 165 Width is more than the width of the 4th end 166, therefore, the channel part 161 can present from it is described enter photosphere 12 towards described Go out the form that photosphere 14 gradually broadens, the lattice 162 can then present from it is described enter photosphere 12 towards it is described go out photosphere 14 by The narrow form of gradual change.

In addition, the blooming piece 10 also includes more several reflecting elements 18, is respectively arranged at the lattice 162 3rd end 165.Therefore, when light by it is described enter photosphere 12 after, the light of a portion will be by described anti- Penetrate part 18 reflect and can not be by the lattice 162, the light of another part can then pass through more narrow described One end 163, transmit among the channel part 161, then via the more broad first end 163, be finally then passed through It is described go out photosphere 14.And because the first end 163 is more narrow, so can only allow the light that angle more collimates by, It is easy for being reflected by the reflecting element 18 on the 3rd end 165 as the light that angle more dissipates, thereby Full width at half maximum (FWHM, Full Width Half Maximum) number of degrees of light extraction light field can significantly be reduced.

Furthermore the present embodiment arrange in pairs or groups again the channel part 161 refractive index be more than the lattice 162 refractive index, come The channel part 161 is allowed to turn into a kind of optically denser medium, the lattice 162 turns into a kind of optically thinner medium, when light is described logical When being transmitted among road portion 161, in optically denser medium and the intersection of optically thinner medium, the effect of total reflection is easily produced, avoids light Refract in the lattice 162, cause the loss of energy.This situation, which can be embodied in the lattice 162, has air, The channel part 161 is PET or PMMA etc plastic material, and PET or the channel part 161 made by PMMA are exactly that light is close Medium, it is then optically thinner medium compared to the air in the lattice 162.

As shown in Fig. 2 the second embodiment of the utility model blooming piece 10, similar to first embodiment, different ground Side is that the lattice 162 of second embodiment also has towards the side 167 of the channel part 161, the side 167 All there is reflection function with the 3rd end 165, there is air in the channel part 161.

When light by it is described enter photosphere 12 after, the light of a portion will be anti-by the institute of the 3rd end 165 Penetrate and can not by the lattice 162, the light of another part then can by the more narrow first end 163, Transmitted among the channel part 161, then via the more broad first end 163, be finally then passed through it is described go out photosphere 14.And because the first end 163 is more narrow, so can only allow the light that angle more collimates by, as angle compared with It is easy for being reflected by the 3rd end 165 with reflection function for the light of diverging, thereby can be by light extraction light field Full width at half maximum (FWHM, Full Width Half Maximum) number of degrees significantly reduce.

Furthermore the present embodiment arrange in pairs or groups again the lattice 162 it is overall can be as made by the material of high reflectance, or Surface is coated with the coating of high reflectance, and therefore, the side 167 all has reflection function with the 3rd end 165, works as light When line transmits among the channel part 161, it can be reflected in the side 167 because of its reflection function by the side 167, Avoid light from refracting in the lattice 162, cause the loss of energy.Now the present embodiment is utilized in optically denser medium With the total reflection principle of the intersection of optically thinner medium, but merely utilize the high reflectance of itself of lattice 162 material Or the coating of high reflectance is reached.Therefore, the present embodiment can uses the form in the channel part 161 with air, It is to have air using the lattice 162 is interior to be different from first embodiment, and the channel part 161 is PET or PMMA etc The form of plastic material.

As shown in figure 3, the display device of another embodiment of the present utility model, including blooming piece 10, light source 20, optics Plate 30, and display panel 40, wherein, the optical sheet 30 receives light caused by the light source 20 and is converted to planar light Source, the blooming piece 10 it is described enter photosphere 12 towards the optical sheet 30, the blooming piece 10 it is described go out photosphere 14 Towards the display panel 40.In the present embodiment, the optical sheet 30 is light guide plate form, to applied to side entrance back Module, in addition, if be applied to direct type backlight module, the optical sheet 30 is diffuser plate form.

In summary, the display that the utility model provides a kind of blooming piece 10 of high collimation light source and applied is set It is standby, it is more narrow using the first end 163, so the light that angle more collimates can only be allowed to pass through as angle more The light of diverging is easy for by the reflecting element 18 on the 3rd end 165 or the described 3rd with reflection function End 165 is reflected and cannot be introduced into the lattice 162, thereby can be by full width at half maximum (FWHM, the Full of light extraction light field Width Half Maximum) number of degrees significantly reduce.

Although the utility model is disclosed as above by foregoing embodiment, but it is not used for limiting this practicality newly Type.The utility model the technical staff in the technical field, do not departing from spirit and scope of the present utility model, should can Make the change and retouching of many.Therefore the scope of protection of the utility model should using protection domain that claim is defined as It is accurate.

Symbol description

10~blooming piece；

12~enter photosphere；

14~go out photosphere；

16~intermediate layer；

161~channel part；

162~lattice；

163~first end；

164~the second end；

165~the 3rd end；

166~the 4th end；

167~side；

18~reflecting element；

20~light source；

30~optical sheet；

40~display panel.

Claims

A kind of 1. blooming piece, it is characterised in that including：

Enter photosphere；

Go out photosphere；

Intermediate layer, positioned at it is described enter photosphere and it is described go out photosphere between, the intermediate layer have more several channel parts with it is more several Lattice, the channel part and the lattice intermesh arrangement, the channel part have towards it is described enter photosphere first End with towards it is described go out photosphere the second end, the lattice have towards it is described enter photosphere the 3rd end with towards institute State out the 4th end of photosphere, the first end and the 3rd end by it is described enter photosphere contact masking, described second End and the 4th end by it is described go out photosphere contact masking.
2. blooming piece as claimed in claim 1, it is characterised in that the width of the first end is less than the second end Width.
3. blooming piece as claimed in claim 1, it is characterised in that the width of the 3rd end is more than the 4th end Width.
4. blooming piece as claimed in claim 1, it is characterised in that the blooming piece also includes more several reflecting elements, point The 3rd end of the lattice is not arranged at.
5. blooming piece as claimed in claim 4, it is characterised in that the refractive index of the channel part is more than the lattice Refractive index.
6. blooming piece as claimed in claim 5, it is characterised in that there is air in the lattice.
7. blooming piece as claimed in claim 1, it is characterised in that the lattice also has towards the side of the channel part Face, the side all have reflection function with the 3rd end.
8. blooming piece as claimed in claim 7, it is characterised in that there is air in the channel part.
9. a kind of display device, including blooming piece, light source, optical sheet according to any one of claim 1-8 items, with And display panel, wherein, the optical sheet receives light caused by the light source and is converted to flat light source, the optical film Piece it is described enter photosphere towards the optical sheet, the light extraction aspect of the blooming piece is to the display panel.