CN107179630B - A kind of backlight module reflector plate, backlight module and display unit - Google Patents
A kind of backlight module reflector plate, backlight module and display unit Download PDFInfo
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- CN107179630B CN107179630B CN201710260473.9A CN201710260473A CN107179630B CN 107179630 B CN107179630 B CN 107179630B CN 201710260473 A CN201710260473 A CN 201710260473A CN 107179630 B CN107179630 B CN 107179630B
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- reflector plate
- line
- backlight module
- plate ontology
- lens
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- 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
- G02F1/133605—Direct backlight including specially adapted reflectors
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a kind of backlight module reflector plate, backlight module and display units, backlight module reflector plate includes the reflector plate ontology in rectangle, the quadrangle of reflector plate ontology is equipped with turning transition structure, four side marginal portion of reflector plate ontology forms the bevel edge by sticking up outside the inclination of reflector plate ontology bottom surface surrounding by turning transition structure, is respectively formed smooth reflection cambered surface at each bevel edge, turning transition structure and bevel edge and reflector plate ontology bottom surface crossover position.Backlight module includes PCB circuit board, several LED light sources, lens and above-mentioned backlight module reflector plate.Display unit includes front frame, center, liquid crystal display panel, diffuser plate and above-mentioned backlight module, and backlight module is located at the back side of the diffuser plate.The present invention utilizes the reflection surface construction random scatters path of cambered surface, so that the distribution that emergent ray can more be spread, can avoid backlight will appear the layout of bright dark side, makes the whole consistent of picture, improves the beauty of picture.
Description
Technical field
The present invention is used for back light model setting technology field, more particularly to a kind of backlight module reflector plate, backlight module and shows
Show unit.
Background technique
By taking the short OD backlight module of currently used straight-down negative as an example, assembling sequence from bottom to up is followed successively by reflector plate, expands
It falls apart, composite membrane, diffusion sheet；Short OD uses reflective lens, and the reflector plate that tradition uses is due to the unexpected transition of reflecting surface and four
The processing problem at angle, since optical path principle of reflection be easy to cause the partially bright problem in four sides, reflector plate rides position and the corner of line
The splicing and existing bright border and dark angle issue concerns of position are very close, and due to four sides and the broken line of the reflector plate of corner part
The distribution for changing optical path is that bright border and dark angle are abnormal in mould group subjective expression.
Traditional typical reflection piece be mainly according to roulette and PET foamed material can secondary moulding, to realize reflection
With the cooperation of backboard optical cavity, surrounding is excessively the triangular structure of standard, and in this way due to the linear transmission principle of optical path, light is beaten
Also it will form regular light stacking after to the bevel edge of reflector plate, will appear the layout of bright dark side in entire backlight in this way, lead
It causes the entirety of picture inconsistent, influences the beauty of picture；As shown in Figure 1, be traditional reflective piece front view, by ride line distribution and
The deformation of catoptric arrangement is completed in the splicing of triangle, as shown in Fig. 2, the substantially light for traditional reflective is distributed, it can be seen that its point
Cloth has subregion, as shown in figure 3, being traditional reflective piece, matches the picture surrounding light distribution situation of reflective lens, due to
The characteristics of reflective lens, if any silk-screen and other processing is not added, the picture of mould group can show tri- regions a, b, c,
Wherein a is bright border, and b is blanking bar, and c is normal luminance area.
Summary of the invention
To solve the above problems, the present invention provides a kind of backlight module reflector plate, backlight module and display unit, utilize
The reflection surface construction random scatters path of cambered surface, so that the distribution that emergent ray can more be spread, can avoid back
Light will appear the layout of bright dark side, makes the whole consistent of picture, improves the beauty of picture.
The technical solution adopted by the present invention to solve the technical problems is: a kind of backlight module reflector plate, including is in rectangle
Reflector plate ontology, the quadrangle of the reflector plate ontology is equipped with turning transition structure, and four side marginal portion of reflector plate ontology passes through
Turning transition structure is formed by the outer bevel edge stuck up of reflector plate ontology bottom surface surrounding inclination, each bevel edge, turning transition structure with
And smooth reflection cambered surface is respectively formed at bevel edge and reflector plate ontology bottom surface crossover position.
It is further used as the improvement of technical solution of the present invention, sets at each bevel edge and reflector plate ontology bottom surface crossover position
There is first to ride line, first, which rides line first place, connects to form rectangle, first ride line include alternatively distributed first cutting line of several sections and
First does not break, and first rides line forms the first light passing section at the first cutting line, forms first reflective section at first place of not breaking.
It is further used as the improvement of technical solution of the present invention, and the length a ' of the first cutting line described in single-unit does not break with first
Length b ' ratio b '/a '=0.6~0.8.
It is further used as the improvement of technical solution of the present invention, and the turning transition structure rides line and third cutting including second
Line, third cutting line are provided with the quadrangle of the reflector plate ontology in arc-shaped, and determining in the quadrangle of reflector plate ontology can be with
Reflector plate ontology is spliced to form the fan-shaped region of reflection cambered surface, the adjacent edges shape of one end of third cutting line in reflector plate ontology
At stop, described second, which rides line, rides line angle point to corresponding reflector plate ontology angle point direction setting along first, and second rides one end of line
Extend to third cutting line, the other end, which by V-shaped third rides line and with first rides the first of line angle point two sides and ride line, to be connect.
It is further used as the improvement of technical solution of the present invention, and described second to ride line include that several sections alternatively distributed second cut open
Tangent line and second does not break, and second rides line forms the second light passing section at the second cutting line, forms second at second place of not breaking
Reflective section, it includes that the alternatively distributed third cutting line of several sections and third do not break that third, which rides line, and third rides line in third cutting
Third light passing section is formed at line, forms reflective section of third at the third place of not breaking.
A kind of backlight module including PCB circuit board, several LED light sources being located in the PCB circuit board, is located at each institute
The lens and above-mentioned backlight module reflector plate on the outside of LED light source are stated, if opening up dry lens on reflector plate ontology bottom surface
Hole, PCB circuit board are located at reflector plate ontology back side, and the lens in PCB circuit board are pierced by by lens opening to reflector plate outer body.
It is further used as the improvement of technical solution of the present invention, the reflector plate ontology underrun be located at lens and bevel edge it
Between two-sided gum be bonded with PCB circuit board, two-sided gum by reflector plate ontology it is padded with shelter from LED light source sending part
Light.
It is further used as the improvement of technical solution of the present invention, the lens include adjoin upside first ride line upside it is saturating
Mirror adjoins downside first and rides the downside lens of line, adjoins left side first and ride the left side lenticular of line, adjoin the right side that line is ridden on right side first
Side lens and the general lens for being located at upside lens, downside lens, left side lenticular and right side lenticular interior zone, the upside
Lens ride the distance d of line to upside firstOnWith upside lens to reflector plate ontology upper edge distance DOnRatio dOn/DOn=
0.25~0.65, the downside lens ride the distance d of line to downside firstUnderWith downside lens to reflector plate ontology lower edge
Distance DUnderRatio dUnder/DUnder=0.25~0.65, the left side lenticular to left side first rides the distance d of lineIt is leftWith left side lenticular to instead
Penetrate the distance D of piece ontology left side edgeIt is leftRatio dIt is left/DIt is left=0.25~0.65, the right side lenticular to right side first ride line away from
From dIt is rightWith right side lenticular to reflector plate ontology right side edge distance DIt is rightRatio dIt is right/DIt is right=0.25~0.65.
A kind of display unit including front frame, center, the liquid crystal display panel being located in the front frame, is located on the center
Diffuser plate and above-mentioned backlight module, backlight module are located at the back side of the diffuser plate.
It is further used as the improvement of technical solution of the present invention, successively sets between liquid crystal display panel and diffuser plate on the center
There are diffusion sheet, H- prismatic lens and V- prismatic lens.
Beneficial effects of the present invention: the present invention provides a kind of backlight module reflector plate, backlight module and display unit, reflection
Piece ontology is respectively formed smooth at each bevel edge, turning transition structure and bevel edge and reflector plate ontology bottom surface crossover position
Cambered surface is reflected, the reflection surface construction random scatters path of cambered surface is utilized, so that emergent ray can more be spread
Distribution, can avoid backlight will appear the layout of bright dark side, makes the whole consistent of picture, improves the beauty of picture.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is the front view of traditional reflective piece；
Fig. 2 is the light distribution map of traditional reflective piece；
Fig. 3 is the picture surrounding light distribution schematic diagram that traditional reflective piece matches reflective lens；
Fig. 4 is backlight module reflector plate structure schematic diagram of the present invention；
Fig. 5 is backlight module reflector plate edge structural schematic diagram of the present invention；
Fig. 6 is back light module unit structure schematic diagram of the present invention；
Fig. 7 is light distribution map of the present invention；
Fig. 8 is that the invention shows cellular construction schematic diagrams.
Specific embodiment
Referring to Fig. 4 to Fig. 8, that show the specific structures of the preferred embodiments of the invention.
Referring to fig. 4, Fig. 5, the present invention provides a kind of backlight module reflector plates, the reflector plate ontology 1 including being in rectangle, institute
The quadrangle for stating reflector plate ontology 1 is equipped with turning transition structure, and 1 four side marginal portion of reflector plate ontology passes through turning transition structure shape
At the bevel edge 11 by sticking up outside the inclination of 1 bottom surface surrounding of reflector plate ontology, the shape of Lai Peihe optical cavity backboard, each bevel edge 11 is turned
Smooth reflection cambered surface 2 is respectively formed at angle transition structure and bevel edge 11 and reflector plate ontology bottom surface crossover position.It utilizes arc
The reflection surface construction random scatters path in face, so that the distribution that emergent ray can more be spread, can avoid backlight
The layout that will appear bright dark side makes the whole consistent of picture, improves the beauty of picture.
Wherein, referring to Fig. 5, each bevel edge 11 rides line 12 equipped with first at the crossover position of reflector plate ontology bottom surface, the
One, which rides the first connect of line 12, forms rectangle, four corner points setting small sircle hole 13 of rectangle, and 13 diameter 1mm≤d of small sircle hole≤
2mm facilitates cross cutting positioning and stress release, while nor affecting on subjective effect.First rides line 12 is alternately distributed including several sections
The first cutting line and first do not break, first rides line forms the first light passing section at the first cutting line, the light that LED light source generates
Line can inject bevel edge 11 by the first light passing section, increase and enter light quantity at bevel edge 11, and it is reflective to form first at first place of not breaking
Section, first reflective section forms smooth reflection cambered surface.The length a ' of first cutting line described in single-unit and the first length not broken
Ratio b '/a '=0.6~0.8 of b ', to facilitate the arc-shaped transition of reflector plate.
Wherein, referring to Fig. 5, the turning transition structure rides line 14 and third cutting line 15, third cutting line including second
15 are provided with the quadrangle of the reflector plate ontology 1 in arc-shaped, and determining in the quadrangle of reflector plate ontology 1 can be with reflector plate ontology
1 is spliced to form the fan-shaped region 10 of reflection cambered surface 2, and according to the difference of size, the diameter of third cutting line 15 meets 120mm-
180mm.One end of third cutting line 15 forms stop in the adjacent edges of reflector plate ontology 1, and small sircle hole 13 is arranged at stop, small
13 diameter 1mm≤d of circular hole≤2mm, facilitates cross cutting positioning and stress release, and fan-shaped region 10 passes through stop near zone and reflection
Piece ontology 1 connects, and keeps integral structure.Described second, which rides line 14, rides 12 angle point of line to corresponding 1 angle point of reflector plate ontology along first
Direction setting, second one end for riding line 14 extend to third cutting line 15, and the other end rides line 16 and first by V-shaped third
It rides the first of 12 angle point two sides of line and rides the connection of line 12.Second rides line 14 and third rides 16 junction of line setting small sircle hole 13, roundlet
13 diameter 1mm≤d of hole≤2mm facilitates cross cutting positioning and stress release, while nor affecting on subjective effect.The present invention passes through four
Excessive and quadrangle the splicing of the arc third cutting line 15 on side mitigates and even thoroughly solves the problems, such as bright border and dark angle.Meanwhile
So that stress part can weaken with line position is ridden, is naturally drooped riding line position, it is excessive to form perfect circular arc.
Second ride line 14 and third ride line 16 and first ride line 12 using similar structures design, described second, which rides line 14, includes
Alternatively distributed second cutting line of several sections and second does not break, and second rides line 14 forms the second light passing at the second cutting line
Section forms second reflective section at second place of not breaking, and third rides line 16 and includes the alternatively distributed third cutting line of several sections and the
Three do not break, and third rides line 16 and forms third light passing section at third cutting line, form reflective section of third at the third place of not breaking.
Second light passing section and second reflective section and third light passing section and reflective section of third, the substrate suitable for meeting 0.188mm is (anti-
Penetrate piece ontology) thickness, according to condition 0.4 < b "/a "≤0.6,0.225mm substrate (reflector plate ontology) thickness meet b "/a "
≤0.4。
Referring to Fig. 6, Fig. 7, present invention simultaneously provides a kind of backlight module, including PCB circuit board 3, it is located at the PCB route
Several LED light sources 4 on plate 3, the lens 5 and above-mentioned backlight module reflector plate for being located at each 4 outside of the LED light source, institute
It states and opens up several lens openings on 1 bottom surface of reflector plate ontology, PCB circuit board 3 is located at 1 back side of reflector plate ontology, in PCB circuit board 3
Lens 5 be pierced by by lens opening to the outside of reflector plate ontology 1.In order to more effectively solve bright border part, the reflector plate ontology 1
Underrun is located at the two-sided gum 6 between lens 5 and bevel edge 11 and is bonded with PCB circuit board 3, and two-sided gum 6 is by reflector plate sheet
The padded some light to shelter from the sending of LED light source 4 of body 1.So that the part that part emergent ray is higher by by reflecting surface is blocked,
Reduce the incident ray that part injects to four edge parts.To ensure that the refracted light of sidewall sections is blocked, the thickness of two-sided gum 6
Degree meets the thickness that h=1.2~3mm(can adjust double-sided adhesive according to the situation of side bright border).The present invention is by being arranged two-sided gum
6 solve the problems, such as the mutation of reflecting surface and lead to light efficiency cataclysm.
Referring to Fig. 5, the lens 5 include adjoining upside first to ride the upside lens of line 12, adjoin downside and first ride line
Downside lens, adjoin left side first ride the left side lenticular of line, adjoin right side first ride the right side lenticular of line and be located at upside thoroughly
Mirror, downside lens, left side lenticular and right side lenticular interior zone general lens, according to the principle of luminosity and light of reflective lens
Road transmission path, the upside lens ride the distance d of line to upside firstOnWith upside lens to reflector plate ontology upper edge
Distance DOnRatio dOn/DOn=0.25~0.65, the downside lens ride the distance d of line to downside firstUnderWith downside lens to instead
Penetrate the distance D of piece ontology lower edgeUnderRatio dUnder/DUnder=0.25~0.65, the left side lenticular to left side first ride line away from
From dIt is leftWith left side lenticular to reflector plate ontology left side edge distance DIt is leftRatio dIt is left/DIt is left=0.25~0.65, the right side lenticular
The distance d of line is ridden to right side firstIt is rightWith right side lenticular to reflector plate ontology right side edge distance DIt is rightRatio dIt is right/DIt is right=0.25
~0.65.
Referring to Fig. 8, the present invention provides a kind of display unit, including front frame 71, center 72, the liquid being located in the front frame 71
Crystal panel 73, the diffuser plate 74 and above-mentioned backlight module being located on the center 72, backlight module are located at the diffuser plate
74 back side.Preferably, diffusion sheet 75, H- rib are successively arranged on the center 72 between liquid crystal display panel 73 and diffuser plate 74
Eyeglass 76 and V- prismatic lens 77, to improve display effect.
The advantage of the design is that reflector plate is usually the shape for cooperating optical cavity backboard using the mode of bending, it is contemplated that
The mutation of the reflecting surface of mould group will lead to the cataclysm of subjective effect, influence to sample；Mould group passes through tropical deterioration, diaphragm simultaneously
Certain breathing is had, the splicing of corner has very big problem, and reflector plate fixation during breathing is caused to be located proximate to
The side of reflector plate bevel edge can heave, and generate splicing seams, show the subjective stowing of mould group, dark angle, so in the design process,
Reflecting surface is solved using the fitting for riding line disconnection ratio and position and double-sided adhesive of the stiffening property feature and surrounding of reflector plate itself
Mutation and the problem of lead to light efficiency cataclysm.
Certainly, the invention is not limited to above embodiment, and those skilled in the art are without prejudice to originally
Equivalent deformation or replacement can be also made under the premise of spirit, these equivalent variation or replacement are all contained in the application right
It is required that in limited range.
Claims (7)
1. a kind of backlight module reflector plate, it is characterised in that: the reflector plate ontology including being in rectangle, the four of the reflector plate ontology
Angle is equipped with turning transition structure, and four side marginal portion of reflector plate ontology is formed by turning transition structure by reflector plate ontology bottom surface
The outer bevel edge stuck up of surrounding inclination, at each bevel edge, turning transition structure and bevel edge and reflector plate ontology bottom surface crossover position
It is respectively formed smooth reflection cambered surface, first is equipped at each bevel edge and reflector plate ontology bottom surface crossover position and rides line, first rides
Line first place connects to form rectangle, and first to ride line include that alternatively distributed first cutting line of several sections and first do not break, and first rides
Line forms the first light passing section at the first cutting line, forms first reflective section at first place of not breaking, the turning transition structure
Line and third cutting line are ridden including second, third cutting line is provided with the quadrangle of the reflector plate ontology in arc-shaped, and anti-
The fan-shaped region that reflection cambered surface can be spliced to form with reflector plate ontology is determined in the quadrangle for penetrating piece ontology, and one end of third cutting line exists
The adjacent edges of reflector plate ontology form stop, and described second, which rides line, rides line angle point to corresponding reflector plate ontology angle point side along first
To setting, second one end for riding line extends to third cutting line, and the other end rides line and first by V-shaped third and rides line angle point
The first of two sides rides line connection.
2. backlight module reflector plate according to claim 1, it is characterised in that: the length a ' of the first cutting line described in single-unit
Ratio b '/a '=0.6~0.8 for the length b ' not broken with first.
3. backlight module reflector plate according to claim 1, it is characterised in that: described second to ride line include several sections alternating
The second cutting line and second of distribution do not break, and second rides line forms the second light passing section at the second cutting line, constantly second
Second reflective section is formed at line, it includes that the alternatively distributed third cutting line of several sections and third do not break that third, which rides line, and third is ridden
Line forms third light passing section at third cutting line, forms reflective section of third at the third place of not breaking.
4. a kind of backlight module, it is characterised in that: including PCB circuit board, several LED light sources being located in the PCB circuit board,
The lens and backlight module reflector plate of any of claims 1-3 being located on the outside of each LED light source, it is described anti-
Penetrate on piece ontology bottom surface and open up several lens openings, PCB circuit board is located at reflector plate ontology back side, the lens in PCB circuit board by
Lens opening is pierced by reflector plate outer body.
5. backlight module according to claim 4, it is characterised in that: the reflector plate ontology underrun be located at lens with
Two-sided gum between bevel edge is bonded with PCB circuit board, and two-sided gum is padded to shelter from LED light source sending by reflector plate ontology
Some light.
6. backlight module according to claim 4, it is characterised in that: the lens include adjoining upside first to ride the upper of line
Side lens adjoin downside first and ride the downside lens of line, adjoin left side first and ride the left side lenticular of line, adjoin right side and first ride line
Right side lenticular and be located at upside lens, downside lens, left side lenticular and right side lenticular interior zone general lens, it is described
Upside lens ride the distance d of line to upside firstOnWith upside lens to reflector plate ontology upper edge distance DOnRatio dOn/
DOn=0.25~0.65, the downside lens ride the distance d of line to downside firstUnderWith downside lens to reflector plate ontology lower side
The distance D of edgeUnderRatio dUnder/DUnder=0.25~0.65, the left side lenticular to left side first rides the distance d of lineIt is leftIt is saturating with left side
Distance D of the mirror to reflector plate ontology left side edgeIt is leftRatio dIt is left/DIt is left=0.25~0.65, the right side lenticular to right side first
Ride the distance d of lineIt is rightWith right side lenticular to reflector plate ontology right side edge distance DIt is rightRatio dIt is right/DIt is right=0.25~0.65.
7. a kind of display unit, it is characterised in that: including front frame, center, the liquid crystal display panel being located in the front frame, be located at it is described
Backlight module described in any one of diffuser plate and claim 4-6 on center, backlight module are located at the diffuser plate
Back side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710260473.9A CN107179630B (en) | 2017-04-20 | 2017-04-20 | A kind of backlight module reflector plate, backlight module and display unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710260473.9A CN107179630B (en) | 2017-04-20 | 2017-04-20 | A kind of backlight module reflector plate, backlight module and display unit |
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| Publication Number | Publication Date |
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| CN107179630A CN107179630A (en) | 2017-09-19 |
| CN107179630B true CN107179630B (en) | 2019-11-29 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102461530B1 (en) * | 2017-11-13 | 2022-10-31 | 엘지디스플레이 주식회사 | Deformed display device |
| CN208780959U (en) | 2018-10-30 | 2019-04-23 | 京东方科技集团股份有限公司 | A kind of reflector plate, backlight module and display device |
| CN114153095A (en) | 2021-12-02 | 2022-03-08 | 上海中航光电子有限公司 | Backlight module, preparation method thereof and display device |
| CN115016169A (en) * | 2022-01-04 | 2022-09-06 | 东莞市托普莱斯光电技术有限公司 | Liquid crystal television with backlight source and lens |
| CN115728994A (en) * | 2022-12-20 | 2023-03-03 | 京东方科技集团股份有限公司 | Backlight module and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101282029B1 (en) * | 2013-01-31 | 2013-07-04 | 삼성전자주식회사 | Display module and displyay apparatus having the same |
| CN203571628U (en) * | 2013-09-29 | 2014-04-30 | 广东长虹电子有限公司 | Novel reflective sheet |
| CN204405995U (en) * | 2014-09-12 | 2015-06-17 | 康佳集团股份有限公司 | A kind of direct-light type LED backlight module and liquid crystal display |
| CN205447638U (en) * | 2015-12-22 | 2016-08-10 | 歌尔声学股份有限公司 | Backlight module and liquid crystal display device |
| CN106226950A (en) * | 2016-07-29 | 2016-12-14 | 广东长虹电子有限公司 | Solve the reflecting paper of television image bright circle phenomenon |
| CN206848643U (en) * | 2017-04-20 | 2018-01-05 | 广州毅昌科技股份有限公司 | A kind of reflector plate, backlight module and display unit |
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