CN110095834A - Backlight, backlight source preparation method and display device - Google Patents
Backlight, backlight source preparation method and display device Download PDFInfo
- Publication number
- CN110095834A CN110095834A CN201810097303.8A CN201810097303A CN110095834A CN 110095834 A CN110095834 A CN 110095834A CN 201810097303 A CN201810097303 A CN 201810097303A CN 110095834 A CN110095834 A CN 110095834A
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- light
- guide plate
- light guide
- emitting surface
- backlight
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- 230000003287 optical effect Effects 0.000 claims abstract description 9
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- 239000010408 film Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 11
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- 201000009310 astigmatism Diseases 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
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- 238000004519 manufacturing process Methods 0.000 claims description 5
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- 239000004417 polycarbonate Substances 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 238000001312 dry etching Methods 0.000 description 3
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0065—Manufacturing aspects; Material aspects
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0002—Lithographic processes using patterning methods other than those involving the exposure to radiation, e.g. by stamping
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention relates to a kind of backlights, for providing light source for display panel；Including light emitting source；And it is set to the light-emitting surface side of the light emitting source, the optical element of the light uniform for being emitted the light emitting source to display panel, the optical element includes；It is set to the light guide plate of the light-emitting surface side of the light emitting source；And it is set to the optical film material of the light emission side of the light guide plate；Wherein, at least one of the light guide plate and the optical film material are glass material.The invention further relates to a kind of display devices and backlight source preparation method.The beneficial effects of the present invention are: at least one of light guide plate and the optical film material are glass material, enhance backlight physical strength, avoids light guide plate at high operating temperatures and/or optical film material that fold occurs, improve product reliability.
Description
Technical field
The present invention relates to display product technical field more particularly to a kind of backlights, backlight source preparation method and display dress
It sets.
Background technique
Currently, backlight includes light guide plate and optical film material, light guide plate is made of PC plastic (polycarbonate), light guide plate
In the case where heated, fold is easily generated, while injected plastics material is also difficult to control uniformity during molding, will lead to
There are color difference, brightness homogeneity difference etc. bad.The material of optical film material generally uses PET plastic (polyethylene terephthalate
Ester), for optical film material in heated situation, it is bad to be easy to produce fold, Newton's ring etc., while optical film material is during cutting,
It is easily mixed into clast, cause foreign matter bad etc..
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of backlight, backlight source preparation method and display device, solutions
The problem that certainly backlight is easily deformed, reliability is low.
In order to achieve the above object, the technical solution adopted by the present invention is that: a kind of backlight, for being provided for display panel
Light source；Including
Light emitting source；And it is set to the light-emitting surface side of the light emitting source, the light for being emitted the light emitting source is equal
The even optical element for being emitted to display panel, the optical element include；
It is set to the light guide plate of the light-emitting surface side of the light emitting source；
And it is set to the optical film material of the light guide plate light emission side；
Wherein, at least one of the light guide plate and the optical film material are glass material.
Further, the light-emitting surface of the light guide plate is provided with the first diffusing structure for astigmatism；
First diffusing structure and the light guide plate are integrally formed, and the diffusing structure is to be formed in the light guide plate
Light-emitting surface frosted structure.
Further, second for astigmatism is provided on the bottom surface being oppositely arranged on the light guide plate with the light-emitting surface
Diffusing structure, second diffusing structure are the site formed using etching mode.
Further, it is coated on the bottom surface being oppositely arranged on the light guide plate with the light-emitting surface for being led to from described
The reflection layer that the light of tabula rasa outgoing is reflected.
Further, a side of the surrounding of the light guide plate be incidence surface, other the three of the surrounding of the light guide plate
Reflection layer is provided on a side.
Further, the optical film material includes the prism for being set to the side of light-emitting surface of the light guide plate, the rib
It is set at least one side in the side of the side of side of the mirror far from the light guide plate and the side of the close light guide plate
It is equipped with pyramid.
Further, the edge of the prism is provided with light-shielding structure；
The light-shielding structure is the shading rubber belt for being covered on opposite the first side and second side of the prism, the leaded light
The incidence surface of plate is adjacent with the light-emitting surface, and first side corresponds to the light-emitting surface of the light guide plate close to the incidence surface
Side.
The present invention also provides a kind of backlight source preparation methods, for making above-mentioned backlight, wherein the optical film material
Prism including being set to the side of the light-emitting surface of the light guide plate, the side of side of the prism far from the light guide plate and
Pyramid, the backlight source preparation method packet are provided at least one side in the side of the side of the light guide plate
It includes:
Pyramid is formed on prism by half-exposure etching mode, is specifically included:
Non-metallic film is formed on the glass substrate；
Half-exposure etching, the grating mask plate are carried out to the glass baseplate for being formed with non-metallic film using grating mask plate
When above having multiple portions transmission region, and using positive photoresist, the light transmission capacity of each partially transparent area is from wherein
The heart is gradually increased to edge, and when using negative photoresist, the light transmission capacity of each partially transparent area is from its center to edge
It is gradually reduced.
The present invention also provides a kind of backlight source preparation methods, for making above-mentioned backlight, wherein the optical film material
Prism including being set to the side of the light-emitting surface of the light guide plate, the side of side of the prism far from the light guide plate and
Pyramid, the backlight source preparation method packet are provided at least one side in the side of the side of the light guide plate
It includes:
Pyramid is formed on prism by rolling mode, is specifically included:
Coating UV glue on the glass substrate；
By having the rod of pyramidal structure, rolled on the UV glue, to form rib on the glass substrate
Cone.
The present invention also provides a kind of display devices, including above-mentioned backlight, or the backlight including above method production.
The beneficial effects of the present invention are: at least one of light guide plate and the optical film material are glass material, enhancing back
Light source physical strength avoids light guide plate at high operating temperatures and/or optical film material that fold occurs, improves product reliability.
Detailed description of the invention
Fig. 1 shows backlight decomposition diagrams in one embodiment of the embodiment of the present invention；
Fig. 2 indicates light conducting plate structure schematic diagram in the embodiment of the present invention；
Fig. 3 indicates prism structure schematic diagram in the embodiment of the present invention；
Fig. 4 indicates path-splitting schematic diagram in the middle part of the embodiment of the present invention；
Fig. 5 indicates backlight decomposition diagram in another embodiment of the embodiment of the present invention；
Fig. 6 indicates light conducting plate structure schematic diagram in Fig. 5；
Fig. 7 indicates the schematic diagram for forming non-metallic film on the glass substrate；
Fig. 8 shows the schematic diagrames of the coating photoresist on non-metallic film；
Fig. 9 indicates the schematic diagram being exposed to the glass baseplate after coating photoresist；
Figure 10 indicates the schematic diagram after developing to the glass baseplate after overexposure；
Figure 11 indicates to carry out the glass baseplate after exposure technology in the schematic diagram after dry etching；
Figure 12 indicates that stripping photoresist forms the schematic diagram of pyramid.
Specific embodiment
Feature and principle of the invention are described in detail below in conjunction with attached drawing, illustrated embodiment is only used for explaining this hair
It is bright, not limited the scope of protection of the present invention with this.
As shown in figs 1 to 6, the present embodiment provides a kind of backlights, for providing light source for display panel；Including
Light emitting source 2；And it is set to the light-emitting surface side of the light emitting source 2, the light for being emitted the light emitting source 2
To the optical element of display panel, the optical element includes line uniform；
It is set to the light guide plate 1 of the light-emitting surface side of the light emitting source 2；
And it is set to the optical film material of the light emission side of the light guide plate 1；
Wherein, at least one of the light guide plate 1 and the optical film material are glass material.
Glass material compared with the existing technology in the plastic materials physical strength such as PC, PET it is good, temperature distortion is very small,
It is bad to avoid occurring under the high temperature conditions fold etc., and glass material transparency is high, can improve backlight to a certain extent
Brightness.
In order to improve the problem that backlight is easily deformed and reliability is low, the light guide plate 1 uses glass material, Huo Zhesuo
Optical film material is stated using glass material, when multiple optical film materials are arranged on the light guide plate 1, multiple optical film materials
At least one of use glass material.Preferred in the present embodiment, the light guide plate 1 and the optical film material are all made of glass
Material.
In the present embodiment, the backlight further includes backboard 5, and the light guide plate 1 is set on the backboard, the leaded light
Plate 1 is provided with the optical film material far from the side of the backboard 5.
In the present embodiment, the light emitting source 2 includes LED light bar, but is not limited thereto.
In the present embodiment, in order to improve the utilization rate of light, the light-emitting surface of the light guide plate 1 is provided with first for astigmatism
Diffusing structure 11.The setting of first diffusing structure 11 can break up the light for being incident to the light-emitting surface so that from it is described go out
The light of smooth surface outgoing is uniformly incident to display panel, improves the uniformity of the brightness of display panel.
The specific constructive form of first diffusing structure 11 can there are many, can with 1 split settings of light guide plate,
It can also be wholely set with light guide plate 1, as long as the effect of astigmatism may be implemented, in the present embodiment, the first astigmatism knot
Structure 11 and the light guide plate 1 are integrally formed, and the diffusing structure is the frosted knot for being formed in the light-emitting surface of the light guide plate 1
Structure, as shown in Figure 2.
Integrally formed setting reduces assembling procedure, avoids the assembly failure that generations are not aligned etc. by assembling, and avoid institute
The first diffusing structure 11 is stated to be separately provided so that increasing product thickness.
The frosted structure can be formed using technology modes such as etching or frostings, but be not limited thereto.
In the present embodiment, in order to effectively improve the utilization rate of light, it is oppositely arranged on the light guide plate 1 with the light-emitting surface
Bottom surface on be provided with the second diffusing structure 12 for astigmatism, second diffusing structure 12 is to be formed using etching mode
Site, as shown in Figure 2.
The specific constructive form of second diffusing structure 12 can there are many, however it is not limited to the structure shape of the site
Astigmatism is played the role of in the setting of formula, the site, changes the path of light, and remoter with light emitting source 2 on the bottom surface,
The distribution of the site is more intensive, so that the light by the site is uniformly emitted to the light-emitting surface.
In an embodiment of the present embodiment, in the bottom surface of the light guide plate 1, i.e. going out far from the light guide plate 1
The side of smooth surface is provided with reflector plate, as shown in Figure 1, for the light being emitted from the bottom surface of the light guide plate 1 to be reflected back institute
It states in light guide plate 1, reduces light loss, improve light utilization.
In the another embodiment of the present embodiment, as shown in figure 5, opposite with the light-emitting surface on the light guide plate 1
The reflection layer 6 for being reflected the light being emitted from the light guide plate 1 is coated on the bottom surface of setting.The light reflection
So that being reflected back inside the light guide plate 1 from the light that 1 bottom surface of light guide plate is emitted, reduction light loss improves light for the setting of layer 6
Utilization rate.
And reflection layer 6 is directly coated on the bottom surface of the light guide plate 1, forms integral structure with the light guide plate 1, avoids
The problem on deformation as caused by high/low temperature, and be thinned relative to the reflector plate that is separately provided conducive to product.
In order to which further the effective utilization rate for improving light, reduction go out from the other faces other than light-emitting surface described in light guide plate 1
The light penetrated, a side of the surrounding of the light guide plate 1 are incidence surface, the other three side of the surrounding of the light guide plate 1
On be provided with reflection layer 6.Reflection layer 6 is set on three sides except the incidence surface of the light guide plate 1, it will be from described
The light being emitted on three sides except the incidence surface of light guide plate 1 is reflected back inside the light guide plate 1, reduces light losing,
Improve the utilization rate of light.
It should be noted that light guide plate 1 is generally rectangular parallelepiped structure, so the surrounding of the light guide plate 1 includes four sides
Face, an incidence surface as the light guide plate 1 in four sides are provided with the reflection layer on the other three side
6, reflection layer 6 is provided on the bottom surface being oppositely arranged on the light guide plate 1 with the light-emitting surface, or in the light guide plate 1
The side of the upper bottom surface being oppositely arranged with the light-emitting surface is provided with reflector plate, i.e., the incidence surface, institute are removed on the described light guide plate 1
It states the region except light-emitting surface and is coated with reflection layer 6, or setting reflector plate, the effective utilization rate for improving light.For
Light guide plates 1 of other rules or irregular shape, the region on the light guide plate 1 in addition to the incidence surface, the light-emitting surface
It is coated with reflection layer 6, or setting reflector plate, the effective utilization rate for improving light.
In the present embodiment, in order to guarantee that the light being emitted from the light-emitting surface of the light guide plate 1 can be uniformly emitted
To display panel, the optical film material includes the prism 3 for being set to the side of light-emitting surface of the light guide plate 1, and the prism 3 is remote
It is arranged at least one side in the side of the side of side from the light guide plate 1 and the side of the close light guide plate 1
There is pyramid 31.
In the present embodiment, the pyramid 31 is rectangular pyramid 31, but is not limited thereto.
Prism 3 described in the beam projecting being emitted from the light-emitting surface of the light guide plate 1 generates refraction, from the prism 3
The light of outgoing becomes uniform, and the light-emitting surface basically perpendicular to the light guide plate 1 is emitted to display panel, ensure that product
Light efficiency.
In the present embodiment, light leakage, the edge of the prism 3 are provided with light-shielding structure in order to prevent, prevent corresponding to aobvious
Show that there is beam projecting in the region except the effective display area of panel.
The specific constructive form of the light-shielding structure can there are many, in the present embodiment, in order to be suitable for Rimless show
Device, the light-shielding structure are the shading rubber belt 4 for being covered on opposite the first side and second side of the prism 3, the leaded light
The incidence surface of plate 1 is adjacent with the light-emitting surface, and first side corresponds to the light-emitting surface of the light guide plate 1 close to the incidence surface
Side.
The light path schematic diagram of the present embodiment backlight is as shown in figure 4, be represented in Fig. 4 out the light that the light emitting source 2 issues
Line enters the light guide plate 1, and the light into the light guide plate 1 occurs to dissipate on the site of the bottom surface of the light guide plate 1
It penetrates, the light being emitted from the bottom surface of the light guide plate 1 is reflected back described 1 inside (this part optical path of light guide plate through the reflector plate
Do not show in figure), alternatively, being reflected back the light guide plate 1 through the reflection layer 6 from the light that the bottom surface of the light guide plate 1 is emitted
Internal (not showing in this part index path), the light-emitting surface of beam projecting by site scattering to the light guide plate 1, via
The prism 3 is emitted to after the frosted structural scattering, via the astriction uniform of the prism 3 to display panel.
The present invention also provides a kind of display devices, including above-mentioned backlight.
Glass material compared with the existing technology in the plastic materials physical strength such as PC, PET it is good, temperature distortion is very small,
It is bad to avoid occurring under the high temperature conditions fold etc., and glass material transparency is high, can improve backlight to a certain extent
Brightness.
The present invention also provides a kind of backlight source preparation methods, which comprises the following steps:
Light guide plate 1 is made using glass；And/or
Optical film material is made using glass；
The optical film material is assembled in the light-emitting surface of the light guide plate 1.
Glass material compared with the existing technology in the plastic materials physical strength such as PC, PET it is good, temperature distortion is very small,
It is bad to avoid occurring under the high temperature conditions fold etc., and glass material transparency is high, can improve backlight to a certain extent
Brightness.
In order to improve the backlight problem low due to reliability caused by deforming in the present embodiment, the light guide plate 1 is used
Glass is made or at least one of multiple optical film materials use glass is made, it is preferred that the light guide plate 1 and the light
Membrane material is all made of glass and is made.
In the present embodiment, backlight source preparation method further include:
Frosted structure is formed by etching mode in the light-emitting surface of the light guide plate 1.It is specific as follows:
It can be translucent hair side, i.e. frosted knot by glass surface treatment by chemical etching in a kind of etching mode
Structure, it acts as break up light.Can specifically be melted away surface layer of glass Si oxide by hydrofluoric acid.
It can be translucent by glass surface treatment by chemical frost, i.e. mat etching method in a kind of etching mode
Hair side becomes little particle crystal particular by indissoluble reactant is generated after acid attack glass, is securely attached to glass surface
On, using this by glass surface treatment as hair side.
In the present embodiment, backlight source preparation method further include:
Site is formed on the bottom surface being oppositely arranged on the light guide plate 1 with the light-emitting surface of light guide plate 1 by etching mode.
Specific step is as follows:
Non-metallic film is formed in the bottom surface of the light guide plate 1, it is heavy using the method for chemical vapor deposition on the glass substrate
Product non-metallic film；
Exposure, is coated with negative photoresist on the non-metallic film, and the via regions on mask plate correspond to the leaded light
Preset dot location on plate 1, the corresponding negative sense photoresist in blocked area on mask plate is that photoresist removes region, on mask plate
The corresponding negative sense photoresist of via regions be photoresist retention area；It is irradiated through light, the via regions corresponding to mask plate
Negative sense photoresist and light reaction form insoluble material, then remove the negative photoresist that is not irradiated by light using developer solution.
Etching falls the non-metallic film corresponding to photoresist removal region using reaction gas dry etching；
Removing, using chemical liquid by the negative sense photoresist lift off of photoresist retention area；
The non-metallic film after removing negative sense photoresist is cleaned in cleaning.
In the present embodiment, the optical film material includes the prism 3 for being set to the side of light-emitting surface of the light guide plate 1, institute
The side and at least one side in the side of the side of the light guide plate 1 for stating side of the prism 3 far from the light guide plate 1
Pyramid 31, backlight source preparation method are provided on face further include:
Pyramid 31 is formed on prism 3 by way of half-exposure etching mode or rolling.
In the present embodiment, the pyramid 31 is rectangular pyramid 31, forms rectangular pyramid 31 by half-exposure etching technics mode
Specific steps are as shown in Fig. 7-Figure 12:
Non-metallic film 200 is formed on glass baseplate 100, using the method for chemical vapor deposition in the glass baseplate
Non-metallic film 200 is deposited on 100, as shown in Figure 7；
Exposure carries out half-exposure etching to the glass baseplate for being formed with non-metallic film using grating mask plate, described non-
Coating photoresist 300 on metal film 200 is penetrated as shown in figure 8, being exposed using half-exposure technique using the part of grating
Property, photoresist 300 can not exclusively be exposed, there is multiple portions transmission region on the grating mask plate, and use positivity
When photoresist, the light transmission capacity of each partially transparent area is gradually increased from its center to edge, when using negative photoresist,
The light transmission capacity of each partially transparent area is gradually reduced from its center to edge, as shown in figure 9, the light transmission of mask plate 400
The height of amount is with the altitude conversion of pyramid 31, and to match with pyramidal structure, the high region of 400 light transmission capacity of mask plate corresponds to
A lower height of position of pyramid 31, corresponding to the neighboring area of rectangular pyramid 31 on the glass baseplate 100, on mask plate 400
It is provided with complete occlusion area, by adjusting light transit dose or intensity of illumination, forms predetermined pattern；
Development, is melted away using developing liquid developing and is not irradiated to the photoresist of light, as shown in Figure 10；
Dry etching does the nonmetallic membrane material for removing the photoresist for not being irradiated to light using reaction gas
Method etching, as shown in figure 11；
Removing, is fallen photoresist lift off using chemical liquid, forms pyramid 31, as shown in figure 12；
Cleaning, cleans the nonmetallic membrane material after stripping photoresist.
In the present embodiment, the formation of the pyramid 31 can also be formed by rolling technology mode, specific steps are such as
Under:
Coating UV glue on the glass substrate；
By having the rod of tetragonous wimble structure, rolled on the UV glue, to be formed on the glass substrate
Rectangular pyramid.This technology mode is easy to operate, is also easy to volume production mode and realizes.
The above is present pre-ferred embodiments, it should be noted that those skilled in the art,
Under the premise of not departing from principle of the present invention, several improvements and modifications can also be made, these improvements and modifications also should be regarded as
The scope of the present invention.
Claims (10)
1. a kind of backlight, for providing light source for display panel；It is characterised in that it includes
Light emitting source；And it is set to the light-emitting surface side of the light emitting source, the light for being emitted the light emitting source uniformly goes out
It is incident upon the optical element of display panel, the optical element includes；
It is set to the light guide plate of the light-emitting surface side of the light emitting source；
And it is set to the optical film material of the light emission side of the light guide plate；
Wherein, at least one of the light guide plate and the optical film material are glass material.
2. backlight according to claim 1, which is characterized in that the light-emitting surface of the light guide plate is provided with for astigmatism
First diffusing structure；First diffusing structure and the light guide plate are integrally formed, and the diffusing structure is described to be formed in
The frosted structure of the light-emitting surface of light guide plate.
3. backlight according to claim 1, which is characterized in that be oppositely arranged on the light guide plate with the light-emitting surface
The second diffusing structure for astigmatism is provided on bottom surface, second diffusing structure is the site formed using etching mode.
4. backlight according to claim 1, which is characterized in that be oppositely arranged on the light guide plate with the light-emitting surface
The reflection layer for being reflected the light being emitted from the light guide plate is coated on bottom surface.
5. backlight according to claim 4, which is characterized in that a side of the surrounding of the light guide plate is into light
Face is provided with reflection layer on the other three side of the surrounding of the light guide plate.
6. backlight according to claim 1, which is characterized in that the optical film material includes being set to the light guide plate
The side of the prism of the side of light-emitting surface, the side of side of the prism far from the light guide plate and the close light guide plate
Pyramid is provided at least one side in side.
7. backlight according to claim 6, which is characterized in that the edge of the prism is provided with light-shielding structure；
The light-shielding structure is the shading rubber belt for being covered on opposite the first side and second side of the prism, the light guide plate
Incidence surface is adjacent with the light-emitting surface, and first side corresponds to the light-emitting surface of the light guide plate close to the one of the incidence surface
Side.
8. a kind of backlight source preparation method, which is characterized in that for making the described in any item backlights of claim 1-7,
In, the optical film material includes the prism for being set to the side of light-emitting surface of the light guide plate, and the prism is far from the leaded light
Pyramid, the back are provided at least one side in the side of the side of the side of plate and the side of the close light guide plate
Light source production method includes:
Pyramid is formed on prism by half-exposure etching mode, is specifically included:
Non-metallic film is formed on the glass substrate；
Half-exposure etching is carried out to the glass baseplate for being formed with non-metallic film using grating mask plate, is had on the grating mask plate
Have a multiple portions transmission region, and when using positive photoresist, the light transmission capacity of each partially transparent area from its center to
Edge is gradually increased, when using negative photoresist, the light transmission capacity of each partially transparent area from its center to edge gradually
Reduce.
9. a kind of backlight source preparation method, which is characterized in that for making the described in any item backlights of claim 1-7,
In, the optical film material includes the prism for being set to the side of light-emitting surface of the light guide plate, and the prism is far from the leaded light
Pyramid, the back are provided at least one side in the side of the side of the side of plate and the side of the close light guide plate
Light source production method includes:
Pyramid is formed on prism by rolling mode, is specifically included:
Coating UV glue on the glass substrate；
By having the rod of pyramidal structure, rolled on the UV glue, to form pyramid on the glass substrate.
10. a kind of display device, which is characterized in that wanted including the described in any item backlights of claim 1-7, or including right
The backlight of the manufacture of backlight source preparation method described in asking 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810097303.8A CN110095834A (en) | 2018-01-31 | 2018-01-31 | Backlight, backlight source preparation method and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810097303.8A CN110095834A (en) | 2018-01-31 | 2018-01-31 | Backlight, backlight source preparation method and display device |
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| Publication Number | Publication Date |
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| CN110095834A true CN110095834A (en) | 2019-08-06 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810097303.8A Pending CN110095834A (en) | 2018-01-31 | 2018-01-31 | Backlight, backlight source preparation method and display device |
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| CN (1) | CN110095834A (en) |
Cited By (1)
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|---|---|---|---|---|
| CN111045256A (en) * | 2020-01-06 | 2020-04-21 | 京东方科技集团股份有限公司 | Backlight module and display device |
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