CN109407402A - A kind of slimming Novel back optical mode group and its display device - Google Patents
A kind of slimming Novel back optical mode group and its display device Download PDFInfo
- Publication number
- CN109407402A CN109407402A CN201811543148.4A CN201811543148A CN109407402A CN 109407402 A CN109407402 A CN 109407402A CN 201811543148 A CN201811543148 A CN 201811543148A CN 109407402 A CN109407402 A CN 109407402A
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- guide plate
- light guide
- slimming
- mode group
- optical mode
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- 230000003287 optical effect Effects 0.000 title claims abstract description 54
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 238000000889 atomisation Methods 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 4
- 238000004020 luminiscence type Methods 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000011514 reflex Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000003595 mist Substances 0.000 claims 1
- 238000004806 packaging method and process Methods 0.000 abstract description 7
- 238000009792 diffusion process Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 2
- 239000012788 optical film Substances 0.000 description 2
- 230000003678 scratch resistant effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Abstract
The invention discloses a kind of slimming Novel back optical mode group, including an optical diaphragm and a light guide plate, the top of light guide plate is arranged in optical diaphragm, and optical diaphragm includes base；The lower surface of base is equipped with multiple prism bars of parallel arrangement；Multiple prism bars extend along the transverse direction of substrate surface；The bottom surface seamed edge of two adjacent prism bars is located along the same line；The upper surface of base is equipped with atomization coating；The upper surface of light guide plate is equipped with multiple V-shaped grooves of parallel arrangement, so that the upper surface of light guide plate is in continuous triangular structure；Multiple V-shaped grooves extend along the longitudinal direction of light guide plate；The lower surface of light guide plate is equipped at intervals with multiple groups array of protrusions along its transverse direction；Array of protrusions described in every group is made of multiple protrusions end to end along the longitudinal direction.The present invention can be such that the thickness of backlight module entirety reduces, and can be improved backlight module packaging efficiency and yield rate.The invention also discloses a kind of display devices with above-mentioned backlight module.
Description
Technical field
The present invention relates to field of display technology, it is specifically related to a kind of slimming Novel back optical mode group and uses the backlight mould
The display device of group.
Background technique
Backlight module is one of key component of liquid crystal display device, is widely used in mobile phone, notebook, plate, leads
In boat, video screen.As shown in Figure 1a, which show the first sidelight type backlight modules in the prior art, including a light source
1, the reflector plate 12 and the optical diaphragm group above light guide plate 11 that a light guide plate 11, one is located at 11 lower section of light guide plate, optics
Diaphragm group includes the lower diffusion sheet 13 being stacked upwards in turn, lower prismatic lens 14, upper prismatic lens 15 and upper diffusion sheet 16, light source
Light enter optical diaphragm group after light guide plate 11, light source is tentatively spread by lower diffusion sheet 13, then via lower rib
Eyeglass 14 and upper prismatic lens 15 improve the brightness of positive light out, finally by upper diffusion sheet 16 slightly diffusing light, upper diffusion sheet
16 also have the function of protecting upper prismatic lens.Thus backlight module 1 is capable of providing homogenization and the higher light of positive brightness.But
It is that the component film piece quantity of above-mentioned optical diaphragm group there are four, so that the thickness of backlight module entirety increases, and needs to composition
Diaphragm is assembled piecewise, is existed and is produced the disadvantages of time-consuming, packaging efficiency is low, fraction defective is high.
As shown in Figure 1 b, which show another sidelight type backlight modules in the prior art, including a light source 2, one to lead
The reflector plate 22 and the optical diaphragm group above light guide plate 21 that tabula rasa 21, one is located at 21 lower section of light guide plate, optical diaphragm group
Including the diffusion sheet 23, lower prismatic lens 24 and upper prismatic lens 25 being stacked upwards in turn, wherein the back side of upper prismatic lens 25 is set
There is atomization coating 26, the light of light source enters optical diaphragm group after light guide plate, and light source is tentatively expanded by diffusion sheet 23
It dissipates, then improves the brightness of positive light out via lower prismatic lens 24 and upper prismatic lens 25, atomization coating 26 can be uniform by light
Change and covers flaw.Thus backlight module 2 is capable of providing homogenization and the higher light of positive brightness.Above-mentioned optical diaphragm group
Component film piece quantity has three pieces, however it remains and the thickness of backlight module entirety increases, there is production time-consuming, packaging efficiency is low,
The disadvantages of fraction defective is high.
Shown in Fig. 1 c, which show the third sidelight type backlight module in the prior art, including a light source 3, one are guide-lighting
The reflector plate 32 and the optical diaphragm group above light guide plate 31 that plate 31, one is located at 31 lower section of light guide plate, optical diaphragm group packet
It includes and is stacked prismatic lens 33 and diffusion sheet 35 upwards in turn, wherein the front of prismatic lens 33 is equipped with atomization coating 34, light source
Light enters optical diaphragm group after light guide plate 31, and light source improves the brightness of positive light out by prismatic lens 33, and atomization back applies
Layer 34 and being used cooperatively for diffusion sheet 35 by equalizing light rays and can cover flaw.Thus backlight module 2 is capable of providing uniformly
Change and the higher light of positive brightness.The component film piece quantity of above-mentioned optical diaphragm group has two panels, however it remains backlight module is whole
The thickness of body increases, and produces the disadvantages of time-consuming, packaging efficiency is low, fraction defective is high.
Summary of the invention
For the above technical problems, the purpose of the present invention is: propose a kind of slimming Novel back optical mode group,
It only needs to include a piece of light guide plate and a piece of optical diaphragm above light guide plate, that is, can reach same in above-mentioned background technique
Optical effect.The thickness of backlight module entirety can be made to reduce, and can be improved backlight module packaging efficiency and yield rate,
The cost of production and processing link is effectively reduced simultaneously.
It is another object of the present invention to: propose a kind of display device, the backlight module having can reduce display device
Integral thickness, and can be improved the packaging efficiency and yield rate of display device, while production and processing link is effectively reduced
Cost.
The technical solution of the invention is as follows is achieved: a kind of slimming Novel back optical mode group, including an optical film
The top of light guide plate is arranged in piece and a light guide plate, the optical diaphragm, and the optical diaphragm includes base；Under the base
Surface is equipped with multiple prism bars of parallel arrangement；The multiple prism bar extends along the transverse direction of substrate surface；It is described adjacent
The bottom surface seamed edges of two prism bars be located along the same line；The upper surface of the base is equipped with atomization coating；The light guide plate
Upper surface be equipped with parallel arrangement multiple V-shaped grooves so that the upper surface of light guide plate be in continuous triangular structure；It is the multiple
V-shaped groove extends along the longitudinal direction of light guide plate；The lower surface of the light guide plate is equipped at intervals with multiple groups protrusion battle array along its transverse direction
Column；Array of protrusions described in every group is made of multiple protrusions end to end along the longitudinal direction.
Further, the haze value of the atomization coating is 10%-90%.
Further, the height of the prism bar is 10um-30um；The apex angle of the prism bar is 25 ° -65 °；The phase
Top spacing between adjacent prism bar is 15um-35um.
Further, the both sides angle of the V-shaped groove is 20 ° -100 °；The depth of the V-shaped groove is 2um-200um；Institute
The width of rebate for stating V-shaped groove is 2um-50um.
Further, the spacing between the adjacent array of protrusions is 1um-100um.
Further, the protrusion is triangular shaped, including two inclined-planes and a bottom surface；The protrusion is in transverse direction
Bottom width is 3um-100um；The vertical height of the top-to-bottom of the protrusion is 1.2um-50um；The protrusion is along longitudinal direction
The base length in direction is 5um-100um；Angle between one of them described inclined-plane and bottom surface is 1 ° -95 °.
Further, the use PET plastic of the base is made.
It further, further include a reflector plate；The lower section of light guide plate is arranged in the reflector plate, so that being incident on the reflection
The light on piece surface reflexes in the light guide plate.
It further, further include a luminescence unit；The luminescence unit corresponds to the one side of the light guide plate.
Further, the slimming Novel back optical mode including display panel and as described in any one of claim 1-9
Group.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages:
A kind of slimming Novel back optical mode group of the invention passes through the light guide plate of the two-sided structure of setting and two-sided structure
Optical diaphragm, reduces the quantity of optical diaphragm, and backlight module only needs to include a piece of light guide plate and a piece of optical diaphragm
Reach same optical effect in above-mentioned background technique.The thickness of backlight module entirety can be made to reduce, and can be improved back
The packaging efficiency and yield rate of optical mode group, while effectively reducing the cost of production and processing link.Corresponding of the invention shows
Showing device also has above-mentioned identical technical effect.
Detailed description of the invention
Technical scheme of the present invention is further explained with reference to the accompanying drawing:
Fig. 1 a is the structural schematic diagram of the first backlight module in the prior art；
Fig. 1 b is the structural schematic diagram of backlight module in second of the prior art；
Fig. 1 c is the structural schematic diagram of prior art backlight module in the third；
Fig. 2 is the structural schematic diagram of backlight module of the invention；
Fig. 3 is the schematic cross-section that optical diaphragm of the invention is observed in transverse direction；
Fig. 4 is the schematic cross-section that light guide plate of the invention is observed along the longitudinal direction；
Fig. 5 is the schematic cross-section that light guide plate of the invention is observed in transverse direction；
Fig. 6 is the schematic diagram of protrusion of the invention in light guide plate following table EDS maps；
Fig. 7 is the structural schematic diagram at another visual angle of light guide plate of the invention；
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
It is as shown in figures 2-6 a kind of slimming Novel back optical mode group of the present invention, including an optical diaphragm 5 and one is led
Tabula rasa 4, optical diaphragm 5 are arranged in the top of light guide plate 4, and optical diaphragm 5 includes base 51, base 51 by pet125um plastics
It is made, the lower surface of base 51 forms multiple prism bars 52 of parallel arrangement, and multiple prism bars 52 are along the longitudinal direction of substrate surface
Direction extends.The X-direction identified in Fig. 3 is transverse direction, and Y direction is longitudinal direction.Two adjacent prism bars 52
Bottom surface seamed edge is located along the same line.Prism bar 52 is prism structures, the bottom surface of prism bar 52 and the lower surface weight of base 51
It closes.The upper surface of base 51 is equipped with one layer of atomization coating 53.Atomization coating 53 is formed in the table of base 51 by way of coating
Face.The haze value for being atomized coating 53 is 10%-90%.By said structure design, light enables light after prism bar 52
It is enough to gather the utilization rate that light is improved to user with optimal angle.Thin intensity can be improved in atomization coating 53, realizes scratch resistant function
Can, special atomized surface effect makes emergent ray become soft, realizes concealing.
Above-mentioned light guide plate 4 is PMMA or PC material, and the thickness of light guide plate 4 is preferably 2.2mm to 20mm, and light guide plate 4 is long
Degree is preferably 3cm to 600cm, and 4 width of light guide plate is preferably 3cm to 500cm.Parallel is machined in the upper surface of light guide plate 4
Multiple V-shaped grooves 41 of cloth, so that the upper surface of light guide plate 4 is in continuous triangular structure (as shown in Figure 4).Multiple V-shaped grooves 41
Longitudinal direction along light guide plate 4 extends.The lower surface of light guide plate 4 is machined with multiple array of protrusions 42 along its transverse direction interval.
Array of protrusions 42 forms (as shown in Figure 6) by end to end along the longitudinal direction multiple raised 421.Protrusion 421 is integrally formed
On the lower surface of light guide plate.Pass through said structure design, the V-shaped groove 41 and light guide plate following table of the upper surface setting of light guide plate 4
The array of protrusions 42 of face setting, can reduce the loss of light, it is ensured that if the brightness done is consistent, make the light emission luminance of light guide plate 4
Enhanced with the light uniformity.
In the present embodiment, it can be realized same light to meet a piece of light guide plate 4 and being used cooperatively for a piece of optical film 5
Effect is learned, the height H of prism bar 51 as shown in Figure 3 is 10um-30um.The apex angle α of prism bar 51 is 25 ° -65 °.Adjacent rib
The top space D of mirror item 51 is 15um-35um.As shown in figure 4, the both sides angle β of V-shaped groove is 20 ° -100 °；The depth H 1 of V-shaped groove
For 2um-200um；The width of rebate D1 of V-shaped groove is 2um-50um.As Figure 4-Figure 6, the spacing B1 of adjacent array of protrusions 42
For 0.5um-100um.Protrusion 421 is triangular shaped, including two inclined-planes and a bottom surface, the bottom surface of protrusion 421 and light guide plate 4
Lower surface coincides.The bottom width B of protrusion 421 in transverse direction is 3um-100um；The vertical height of the top-to-bottom of protrusion
Degree H2 is 1.2um-50um；The base length S of protrusion 421 along the longitudinal direction is 5um-100um；One of inclined-plane and bottom surface
Angle δ is 1 ° -95 °.It should be noted that can be used for obtaining above-mentioned parameter relationship without any technical inspiration in the prior art,
And those skilled in the art can realize according to above-mentioned parameter model as three kinds of backlight modules are same or similar in background technique
Optical effect.
The backlight module of the present embodiment further includes a reflector plate 6, and the lower section of light guide plate 4 is arranged in reflector plate 6, so that incident
Light to 6 surface of reflector plate reflexes in the light guide plate.
It further include a luminescence unit 7 in the backlight module of the present embodiment, luminescence unit 7 corresponds to the one of above-mentioned light guide plate 4
Side.Luminescence unit 7 corresponds to the light incident sides of light guide plate 4, and 4 incident side of light guide plate is machined with incident side micro-structure, incident side
Micro-structure is similar to micro-structure in the prior art, and incident side micro-structure is rectangle structure, the length 3- of incident side micro-structure
150um, width 2um to 50um, depth 1.0 to 30um.
Corresponding, the present embodiment also provides a kind of display device, including display panel (not identifying in figure) and institute as above
The slimming backlight module stated.
The light of luminescence unit 7 enters light guide plate 4 in the present embodiment, the V-shaped groove 41 of the upper surface setting of light guide plate 4 and
The array of protrusions 42 of light guide plate lower surface setting, can reduce the loss of light, it is ensured that if the brightness done is consistent, make light guide plate 4
Light emission luminance and the light uniformity enhanced, adjusting of the light Jing Guo prism bar 51 enables light with optimal angle
Gather the utilization rate that light is improved to user.Otpical leaf semi-finals degree can be improved in atomization coating 52, realizes scratch resistant function, special
Atomized surface effect makes emergent ray become soft, realizes concealing.
The present embodiment is eliminated by the light guide plate 4 of the two-sided structure of setting and the optical diaphragm 5 of two-sided structure using more
The structure type of a optical diaphragm, backlight module are only needed to include a piece of light guide plate and a piece of optical diaphragm, that is, be can reach above-mentioned
Same optical effect in background technique.The thickness of backlight module entirety can be made to reduce, and can be improved backlight module assembling
Efficiency and yield rate, while effectively reducing the cost of production and processing link.Corresponding display device of the invention also has
Above-mentioned identical technical effect.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of slimming Novel back optical mode group, including an optical diaphragm and a light guide plate, the optical diaphragm is arranged in leaded light
The top of plate, it is characterised in that: the optical diaphragm includes base；The lower surface of the base is equipped with multiple ribs of parallel arrangement
Mirror item；The multiple prism bar extends along the transverse direction of substrate surface；The bottom surface seamed edge position of two adjacent prism bars
In on same straight line；The upper surface of the base is equipped with atomization coating；The upper surface of the light guide plate is equipped with the more of parallel arrangement
A V-shaped groove, so that the upper surface of light guide plate is in continuous triangular structure；Longitudinal direction of the multiple V-shaped groove along light guide plate
Extend；The lower surface of the light guide plate is equipped at intervals with multiple groups array of protrusions along its transverse direction；Array of protrusions described in every group is by edge
The end to end multiple protrusion compositions of longitudinal direction.
2. a kind of slimming Novel back optical mode group according to claim 1, it is characterised in that: the mist degree of the atomization coating
Value is 10%-90%.
3. a kind of slimming Novel back optical mode group according to claim 1, it is characterised in that: the height of the prism bar is
10um-30um；The apex angle of the prism bar is 25 ° -65 °；Top spacing between the adjacent prism bar is 15um-35um.
4. a kind of slimming Novel back optical mode group according to claim 1, it is characterised in that: the both sides of the V-shaped groove press from both sides
Angle is 20 ° -100 °；The depth of the V-shaped groove is 2um-200um；The width of rebate of the V-shaped groove is 2um-50um.
5. a kind of slimming Novel back optical mode group according to claim 1, it is characterised in that: the adjacent array of protrusions
Between spacing be 1um-100um.
6. a kind of slimming Novel back optical mode group according to claim 1, it is characterised in that: the protrusion is triangle shape
Shape, including two inclined-planes and a bottom surface；The bottom width of the protrusion in transverse direction is 3um-100um；The top of the protrusion
Vertical height to bottom is 1.2um-50um；The base length of the protrusion along the longitudinal direction is 5um-100um；One of them
Angle between the inclined-plane and bottom surface is 1 ° -95 °.
7. a kind of slimming Novel back optical mode group according to claim 1, it is characterised in that: the base uses PET
Plastics are made.
8. a kind of slimming Novel back optical mode group according to claim 1, it is characterised in that: further include a reflector plate；Institute
The lower section that light guide plate is arranged in reflector plate is stated, so that the light for being incident on the reflector plate surface reflexes in the light guide plate.
9. a kind of slimming Novel back optical mode group according to claim 1, it is characterised in that: further include a luminescence unit；
The luminescence unit corresponds to the one side of the light guide plate.
10. a kind of display device according to claim 1, it is characterised in that: including display panel and such as claim 1-9
Any one of described in slimming Novel back optical mode group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543148.4A CN109407402A (en) | 2018-12-17 | 2018-12-17 | A kind of slimming Novel back optical mode group and its display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543148.4A CN109407402A (en) | 2018-12-17 | 2018-12-17 | A kind of slimming Novel back optical mode group and its display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109407402A true CN109407402A (en) | 2019-03-01 |
Family
ID=65459470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811543148.4A Pending CN109407402A (en) | 2018-12-17 | 2018-12-17 | A kind of slimming Novel back optical mode group and its display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109407402A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021238906A1 (en) * | 2020-05-27 | 2021-12-02 | 京东方科技集团股份有限公司 | Backlight structure and lcd display module |
| WO2023000238A1 (en) * | 2021-07-22 | 2023-01-26 | 瑞仪光电(南京)有限公司 | Backlight module and display device |
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|---|---|---|---|---|
| WO2021238906A1 (en) * | 2020-05-27 | 2021-12-02 | 京东方科技集团股份有限公司 | Backlight structure and lcd display module |
| WO2023000238A1 (en) * | 2021-07-22 | 2023-01-26 | 瑞仪光电(南京)有限公司 | Backlight module and display device |
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