CN102650706A - Reflector plate and preparation method thereof, and backlight with reflector plate - Google Patents
Reflector plate and preparation method thereof, and backlight with reflector plate Download PDFInfo
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- CN102650706A CN102650706A CN2012100612579A CN201210061257A CN102650706A CN 102650706 A CN102650706 A CN 102650706A CN 2012100612579 A CN2012100612579 A CN 2012100612579A CN 201210061257 A CN201210061257 A CN 201210061257A CN 102650706 A CN102650706 A CN 102650706A
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- reflector plate
- reflector
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- 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
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- 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
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- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a reflector plate, a preparation method thereof, and a backlight with the reflector plate, belonging to the technical field of liquid crystal display and solving the problem of large color cast of an existing backlight. The reflector plate provided by the invention is blue and is provided with a light reflecting layer used for reflecting light. The backlight provided by the invention comprises a light guide plate which is provided with the reflector plate. The preparation method of the reflector plate provided by the invention comprises the steps of adding blue pigment in the raw material of the light reflecting layer or a binder. The invention can be used for the backlight used for a liquid crystal display device and particularly used for the backlight using the side light incident type light guide plate.
Description
Technical field
The invention belongs to technical field of liquid crystal display, be specifically related to a kind of reflector plate and preparation method thereof, have the backlight of this reflector plate.
Background technology
Backlight is the significant components of liquid crystal indicator, and in various backlights, it is more common using the backlight of side incident type LGP.As shown in Figure 1; Backlight mainly comprises light source 3 and LGP 2; Light source 3 can be LED lamp bar, cold cathode fluorescent tube (CCFL) etc.; Light source 3 is located at outside the side (incidence surface 21) of LGP 2, and the light that light source 3 sends gets into LGP 2 backs from incidence surface 21 and penetrates and get into the liquid crystal display mode group from LGP upper surface (exiting surface).For the light that utilizes light source 3 to send more fully; Can (face relative) form the reflection site in LGP 2 bottom surfaces through silk-screen printing technique with exiting surface; And white reflection sheet 1 or silver-colored reflector plate 1 are set except that incidence surface 21 and other each face the exiting surface at LGP 2; Be used in LGP 2, to propagate and being mapped to the light reflected back LGP inside on LGP surface, prevent light leak, improve light utilization efficiency.
Above-mentioned reflector plate all can comprise and be used for catoptrical reflector layer and be used for reflector plate is bonded in the adhesive layer on the LGP.Wherein, The reflector layer of white reflection sheet is made up of transparent resin material and Chinese white; The most frequently used transparent resin is PET (polyethylene terephthalate); But also can adopt other aromatic polyester resins, aliphatic polyester-based resin etc., Chinese white is one or more the potpourri in the materials such as Titanium particles, polytetrafluoroethylparticle particle; The reflector layer of silver reflector plate is generally the argent of vapor deposition.Above-mentioned two kinds of reflector plates all can not change its catoptrical color.
The inventor finds to have following problem in the prior art at least: the printing-ink and the LGP material (being generally polymethylmethacrylate) of reflection site all can more absorb blue light; Therefore the light that penetrates from LGP partially Huang (white light the backlight is formed by blue light and yellow light mix; Blue light is absorbed many, and remaining light is just yellow partially), especially; The ratio of the light of warp reflection is big more from the light that penetrates LGP apart from incidence surface more at a distance; And the light path of light process is also long more, and its blue light is absorbed more, and is therefore yellow more partially from the light of LGP distance light end (away from the end of incidence surface) ejaculation; In a word, there is bigger colour cast in existing backlight, influences display quality.And for fear of colour cast, part backlight (especially large scale backlight) must be taked the mode of bilateral light inlet, and promptly two of LGP opposite sides are provided with light source (two incidence surfaces are promptly arranged) respectively, and this can increase expending of material and energy.
Summary of the invention
Technical matters to be solved by this invention comprises, has the problem of colour cast greatly to backlight in the prior art, and a kind of reflector plate that solves the colour cast problem is provided.
Solving the technical scheme that technical matters of the present invention adopted is a kind of reflector plate, and it comprises and is used for catoptrical reflector layer, and said reflector plate be a blueness.
Preferably, said reflector layer is blue.
Preferably, containing mass percent in the said reflector layer is 1% to 30% blue pigment.
Preferably, said reflector plate also comprises adhesive layer, and said adhesive layer is blue.
Preferably, containing mass percent in the said adhesive layer is 1% to 20% blue pigment.
That is to say that in the reflector plate of the present invention, reflector layer and/or adhesive layer are blue, is blue thereby make reflector plate.
Reflector plate of the present invention is blue, to the receptivity of blue light a little less than, stronger to light (like the gold-tinted) receptivity of all the other colors, the ratio of blue light increases in the light of its reflection,
Therefore when being attached to reflector plate of the present invention on the LGP, it can improve the shared ratio of blue light in the light of ejaculation, improves colour cast; And the light script colour cast that goes out from LGP distance light end-fire is more serious, and reflector plate of the present invention can make more that blue light increases from the light that the distance light end-fire goes out, and meets the needs of backlight fully; Simultaneously, reflector plate of the present invention can allow backlight that part originally can only the bilateral light inlet to adopt mode, conserve energy and the material of one-sided light inlet.
Technical matters to be solved by this invention also comprises, has the problem of colour cast greatly to backlight in the prior art, and a kind of backlight that solves the colour cast problem is provided.
Solving the technical scheme that technical matters of the present invention adopted is a kind of backlight, and it comprises LGP, and said LGP is provided with above-mentioned reflector plate.
Because the LGP of backlight of the present invention is provided with above-mentioned reflector plate, so it can improve color offset phenomenon, raising display quality, conserve energy and material.
The present invention further provides a kind of preparation method who solves the reflector plate of colour cast problem.
Solving the technical scheme that technical matters of the present invention adopted is a kind of preparation method of reflector plate, comprising:
In the reflector layer raw material, sneak into blue pigment;
Form reflector layer with the said reflector layer raw material that is mixed with blue pigment.
Preferably, in the said reflector layer raw material that is mixed with blue pigment, the mass percent of blue pigment is 1% to 20%.
Perhaps, the solution technical scheme that technical matters of the present invention adopted also can be a kind of preparation method of reflector plate, comprising:
In cementing agent, sneak into blue pigment;
The adhesive-coated that is mixed with blue pigment is formed adhesive layer on the reflector layer of reflector plate.
Preferably, in the said cementing agent that is mixed with blue pigment, the mass percent of blue pigment is 1% to 30%.
Owing among the preparation method of reflector plate of the present invention, comprise the step of in reflector layer raw material or cementing agent, sneaking into blue pigment, so the reflector plate of its preparation be blue, can improve color offset phenomenon, raising display quality, conserve energy and material.
In the present invention, said " reflector plate is for blue " is meant that reflector plate is for blue under natural light, and the light that promptly reflector plate penetrates under natural light is that (wavelength is 450～500nm) for blue light; The implication of " blue pigment " is meant that also pigment is for blue under natural light.
In the present invention, reflector layer or reflector layer raw material can be PET, also can be other reflector layer material such as aromatic polyester resins, aliphatic polyester-based resin; Blue pigment can be any blue pigments such as C.I. pigment blue 60, C.I. pigment blue 27, C.I. pigment Blue-61, C.I. alizarol saphirol 29, C.I. pigment blue 17, C.I. alizarol saphirol 9; Cementing agent can be acrylic adhesive or polyacrylic cementing agent.
The present invention is applicable to the backlight of liquid crystal indicator, in particular for using the backlight of side incident type LGP.
Description of drawings
Fig. 1 is the structural representation of the backlight of existing use side incident type LGP;
Fig. 2 is the structural representation of the reflector plate of the embodiment of the invention 3.
Embodiment
For making those skilled in the art understand technical scheme of the present invention better, the present invention is described in further detail below in conjunction with accompanying drawing and embodiment.
Embodiment 1:
Present embodiment provides a kind of reflector plate, and it comprises and is used for catoptrical reflector layer, and this reflector plate is blue.
The reflector plate of present embodiment is blue; To the receptivity of blue light a little less than; Light (like gold-tinted) receptivity to all the other colors is stronger, and the ratio of blue light increases in the light of its reflection, therefore when being attached to the reflector plate of present embodiment on the LGP; It can improve the shared ratio of blue light in the light of ejaculation, improves colour cast (can reduce colour cast 1～20 ‰); And; The light script colour cast that goes out from LGP distance light end-fire is more serious; And the reflector plate of present embodiment just in time makes blue light increases from the light that the distance light end-fire goes out more (because catoptrical ratio is more from the light that the distance light end-fire goes out), meets the needs of backlight fully; Simultaneously, the reflector plate of present embodiment can allow backlight that part originally can only the bilateral light inlet to adopt mode, conserve energy and the material of one-sided light inlet.
Embodiment 2:
Present embodiment provides a kind of reflector plate, and it comprises and is used for catoptrical reflector layer, and this reflector layer is blue.
That is to say that it is blue being used for catoptrical reflector layer in the reflector plate of present embodiment, is blue thereby make reflector plate; Certainly, as previously mentioned, this reflector layer main material can be reflector layer materials such as PET, and blue pigment can be blue pigments such as C.I. pigment blue 60.
Preferably, containing mass percent in the reflector layer is 1% to 20% blue pigment.That is to say that the reflector layer of the reflector plate of present embodiment is blue through sneaking into blue pigment, and the content of blue pigment is preferably 1～20wt% (wt%: mass percent); Because find through practice, in this content range, promptly do not influence the reflection potential of reflector layer, can make reflector layer have color again.
Certainly; The reflector plate of present embodiment also can comprise the known configurations in other reflector plate, for example be used to support reflector layer base layer, be used to protect reflector layer protective seam, be used for reflector plate is bonded in adhesive layer on the LGP, is used to be attached on the adhesive layer with the release liners that prevents unexpected bonding etc.; Because these structures all can adopt prior art, so be not described in detail at this.
Embodiment 3:
As shown in Figure 2, present embodiment provides a kind of reflector plate 1, and it comprises and is used for catoptrical reflector layer 11, also comprises adhesive layer 12, and this adhesive layer 12 is blue.
That is to say that the adhesive layer 12 that is used in the reflector plate 1 of present embodiment reflector plate 1 is bonded on the LGP is blue, thereby make reflector plate 1 for blue; Certainly, the main material of this adhesive layer 12 can be cementing agents such as acrylic adhesive, and blue pigment can be blue pigments such as C.I. pigment blue 60.
Preferably, containing mass percent in the adhesive layer 12 is 1% to 30% blue pigment.That is to say; The adhesive layer 12 of the reflector plate 1 of present embodiment is blue through sneaking into blue pigment; And the content of blue pigment is preferably 1～30wt%, because find through practice, in this content range; Promptly do not influence the cementation power of adhesive layer 12, can make adhesive layer 12 have color again.Be limited to 30wt% on the adhesive layer 12 Smalt pigment contents; The upper limit (20wt%) greater than reflector layer 11 Smalt pigment contents; This is because the effect of adhesive layer 12 is that pigment content more can not influence its cementation power more yet with reflector plate 1 and LGP bonding.
Certainly, also must comprise reflector layer 11 in the reflector plate of present embodiment, this reflector layer 11 can be the conventional reflector layer 11 that does not contain blue pigment, also can be the reflector layer 11 (reflector layer 11, the adhesive layer 12 that is reflector plate can all be blue) of the blueness among the embodiment 2.
Certainly, the reflector plate of present embodiment also can comprise the known configurations in other reflector plate, for example be used to support reflector layer base layer, be used to protect reflector layer protective seam, be used to be attached on the adhesive layer with the release liners that prevents unexpected bonding etc.; Because these structures all can adopt prior art, so be not described in detail at this.
Embodiment 4:
Present embodiment provides a kind of backlight, and it comprises LGP, and LGP is provided with above-mentioned reflector plate.
Preferably; LGP in the backlight of present embodiment is a side incident type LGP; Be that light source is located at outside the side of LGP (incidence surface is the side of LGP in other words), preferred, the bottom surface of LGP (with the exiting surface facing surfaces) is printed with the reflection site.
Certainly, above-mentioned reflector plate can be located at the diverse location of LGP according to real needs; For example, it can be located on other three sides except that incidence surface of LGP (being the lateral reflection sheet); Also can be located at (being that the bottom surface has reflection site and reflector plate simultaneously) on the bottom surface of LGP; Also can only be located at part side or bottom surface a part of first-class of LGP.
Certainly, also can comprise the well-known components in other backlight in the backlight of present embodiment, like light source, backboard, framework etc.
Because the LGP of the backlight of present embodiment is provided with above-mentioned reflector plate, so it can improve color offset phenomenon, raising display quality, conserve energy and material.
The luminescent chromaticity effect comparison of existing backlight of table 1 and backlight of the present invention
Table 1 is the luminescent chromaticity effect comparison table of existing backlight and backlight of the present invention; Wherein, " existing backlight " refers to the backlight of existing use side incident type printing LGP, and its three sides (removing incidence surface) posted conventional white reflection sheet; Backlight 1 of the present invention is the backlight that whole lateral reflection sheets of the LGP of existing backlight is changed to reflector plate (blue pigment that 15wt% is only arranged) the back formation of embodiment 3 in adhesive layer; Backlight 2 of the present invention is the backlights that whole lateral reflection sheets of the LGP of existing backlight are changed to reflector plate (blue pigment that 10wt% is only arranged) the back formation of embodiment 2 in reflector layer; X, y value are the parameter (no unit) of expression color in the CIE color space system, and its standard value (value when referring to send white light) should be respectively x=0.290 ± 0.02, x=0.295 ± 0.02; The value that colour cast calculates for the difference according to x, y and standard value, big more expression colour cast is serious more; Nine sampling spots are then represented the different point in nine positions on the backlight exiting surface; Its particular location is predetermined when dispatching from the factory according to the model of backlight; Usually the line of other eight sampling spots except that sampling spot 5 surrounds a rectangle slightly littler than backlight exiting surface, and sampling spot 5 is the mid point of backlight exiting surface.
Visible from table 1, the hue error value of the backlight of the present invention obviously colour cast than existing backlight is little.
The luminosity contrast of existing backlight of table 2 and backlight of the present invention
| Project | Existing | Backlight | 1 of the | Backlight | 2 of the present |
| Sampling spot | |||||
| 1 | 3608 | ?2766 | ?2731 | ||
| |
4306 | ?4279 | ?4255 | ||
| |
4402 | ?4422 | ?4394 | ||
| Sampling spot 4 | 3536 | ?2688 | ?2716 | ||
| Sampling spot 5 | 4718 | ?4074 | ?4656 | ||
| Sampling spot 6 | 4015 | ?4068 | ?4081 | ||
| Sampling spot 7 | 3672 | ?2871 | ?2859 | ||
| Sampling spot 8 | 4234 | ?4173 | ?4140 | ||
| Sampling spot 9 | 4391 | ?4373 | ?4393 | ||
| Mean value | 4098 | ?3816 | ?3802 |
Table 2 is the luminosity effect comparison table of existing backlight and backlight of the present invention, and wherein brill is cd/m
2(every square metre of candela), visible, the brightness of backlight of the present invention is suitable with the brightness of existing backlight, can satisfy actual needs fully.
Embodiment 5:
Present embodiment provides a kind of preparation method of reflector plate, and it may further comprise the steps:
S01, in the reflector layer raw material, sneak into blue pigment.
Wherein, the reflector layer raw material can be PET (preferred foaming PET), also can be other reflector layer materials such as aromatic polyester resins, aliphatic polyester-based resin; Blue pigment can be blue pigments such as C.I. pigment blue 60.
The reflector layer raw material that S02, usefulness are mixed with blue pigment forms reflector layer.
Preferably, in being mixed with the reflector layer raw material of blue pigment, the mass percent of blue pigment is 1% to 20%.
Wherein, the step that forms reflector layer can realize through existing technologies such as film stretchings.The preparation method of present embodiment and existing preparation method's difference are to be mixed with blue pigment in the reflector layer raw material of present embodiment; And be mixed with Chinese whites such as titanium dioxide, teflon in the reflector layer raw material of prior art; Be the two be in the raw material kind of pigment different; But on preparation technology, do not have essential distinction, so be not described in detail the concrete technology that forms reflector layer at this.
Certainly; In order to prepare complete reflector plate; Also can comprise other known steps among the reflector plate preparation technology in the method for present embodiment; As form the step of base layer, the step that forms protective seam, coating cementing agent step, attach the step of release liners, step that the reflector plate bulk is cut etc. because these steps can adopt existing technology, so be not described in detail at this.
Owing among the preparation method of the reflector plate of present embodiment, comprise the step of in the reflector layer raw material, sneaking into blue pigment, so the reflector plate of its preparation be blue, can improve color offset phenomenon, raising display quality, conserve energy and material.
Embodiment 6:
Present embodiment provides a kind of preparation method of reflector plate, and the preparation method of the reflector plate of itself and embodiment 5 is similar, and difference is that its content that is mixed with the reflector layer raw material Smalt pigment of blue pigment is 1wt%; Content by the reflector layer Smalt pigment of its reflector plate that makes also is 1wt%.
Embodiment 7:
Present embodiment provides a kind of preparation method of reflector plate, and the preparation method of the reflector plate of itself and embodiment 5 is similar, and difference is that its content that is mixed with the reflector layer raw material Smalt pigment of blue pigment is 10wt%; Content by the reflector layer Smalt pigment of its reflector plate that makes also is 10wt%.
Embodiment 8:
Present embodiment provides a kind of preparation method of reflector plate, and the preparation method of the reflector plate of itself and embodiment 5 is similar, and difference is that its content that is mixed with the reflector layer raw material Smalt pigment of blue pigment is 20wt%; Content by the reflector layer Smalt pigment of its reflector plate that makes also is 20wt%.
Embodiment 9:
Present embodiment provides a kind of preparation method of reflector plate, and it may further comprise the steps:
S11, in cementing agent, sneak into blue pigment.
Wherein, cementing agent can be cementing agents such as acrylic adhesive; And blue pigment can be blue pigments such as C.I. pigment blue 60.
S12, the adhesive-coated that will be mixed with blue pigment form adhesive layer on the reflector layer of reflector plate.
Preferably, in being mixed with the cementing agent of blue pigment, the mass percent of blue pigment is 1% to 30%.
Wherein, the step that coating forms cementing agent can be coated with through commentaries on classics and wait conventional technology realization, and the difference of itself and common process is to be mixed with blue pigment in the used cementing agent.
Certainly; In order to prepare complete reflector plate; Also can comprise other known steps among the reflector plate preparation technology in the method for present embodiment, the step that cuts like step, the step (can form existing reflector layer, also can form blue reflector layer) that forms reflector layer, the step that forms protective seam that forms base layer, the step that attaches release liners, to the reflector plate bulk etc. by the method for embodiment 5; Because these steps can adopt existing technology, so be not described in detail at this.
Owing among the preparation method of the reflector plate of present embodiment, comprise the step of in adhesive layer, sneaking into blue pigment, so the reflector plate of its preparation be blue, can improve color offset phenomenon, raising display quality, conserve energy and material.
Embodiment 10:
Present embodiment provides a kind of preparation method of reflector plate, and the preparation method of the reflector plate of itself and embodiment 9 is similar, and difference is that its content that is mixed with the cementing agent Smalt pigment of blue pigment is 1wt%; Content by the adhesive layer Smalt pigment of its reflector plate that makes also is 1wt%.
Embodiment 11:
Present embodiment provides a kind of preparation method of reflector plate, and the preparation method of the reflector plate of itself and embodiment 9 is similar, and difference is that its content that is mixed with the cementing agent Smalt pigment of blue pigment is 15wt%; Content by the adhesive layer Smalt pigment of its reflector plate that makes also is 15wt%.
Embodiment 12:
Present embodiment provides a kind of preparation method of reflector plate, and the preparation method of the reflector plate of itself and embodiment 9 is similar, and difference is that its content that is mixed with the cementing agent Smalt pigment of blue pigment is 30wt%; Content by the adhesive layer Smalt pigment of its reflector plate that makes also is 30wt%.
It is understandable that above embodiment only is the illustrative embodiments that adopts for principle of the present invention is described, yet the present invention is not limited thereto.For the one of ordinary skilled in the art, under the situation that does not break away from spirit of the present invention and essence, can make various modification and improvement, these modification also are regarded as protection scope of the present invention with improving.
Claims (10)
1. a reflector plate comprises being used for catoptrical reflector layer, it is characterized in that, said reflector plate is blue.
2. reflector plate according to claim 1 is characterized in that,
Said reflector layer is blue.
3. reflector plate according to claim 2 is characterized in that,
Contain mass percent in the said reflector layer and be 1% to 20% blue pigment.
4. according to any described reflector plate in the claim 1 to 3, it is characterized in that,
Said reflector plate also comprises adhesive layer, and said adhesive layer is blue.
5. reflector plate according to claim 4 is characterized in that,
Contain mass percent in the said adhesive layer and be 1% to 30% blue pigment.
6. a backlight comprises LGP, it is characterized in that,
Said LGP is provided with any described reflector plate in the claim 1 to 5.
7. the preparation method of a reflector plate is characterized in that, comprising:
In the reflector layer raw material, sneak into blue pigment;
Form reflector layer with the said reflector layer raw material that is mixed with blue pigment.
8. the preparation method of reflector plate according to claim 7 is characterized in that,
In the said reflector layer raw material that is mixed with blue pigment, the mass percent of blue pigment is 1% to 20%.
9. the preparation method of a reflector plate is characterized in that, comprising:
In cementing agent, sneak into blue pigment;
The adhesive-coated that is mixed with blue pigment is formed adhesive layer on the reflector layer of reflector plate.
10. the preparation method of reflector plate according to claim 9 is characterized in that,
In the said cementing agent that is mixed with blue pigment, the mass percent of blue pigment is 1% to 30%.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100612579A CN102650706A (en) | 2012-03-09 | 2012-03-09 | Reflector plate and preparation method thereof, and backlight with reflector plate |
| PCT/CN2012/084183 WO2013131378A1 (en) | 2012-03-09 | 2012-11-07 | Reflector, preparation method therefor, and backlight source with such reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100612579A CN102650706A (en) | 2012-03-09 | 2012-03-09 | Reflector plate and preparation method thereof, and backlight with reflector plate |
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| CN102650706A true CN102650706A (en) | 2012-08-29 |
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| WO (1) | WO2013131378A1 (en) |
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| WO2013131378A1 (en) * | 2012-03-09 | 2013-09-12 | 京东方科技集团股份有限公司 | Reflector, preparation method therefor, and backlight source with such reflector |
| CN105182466A (en) * | 2015-09-11 | 2015-12-23 | 京东方光科技有限公司 | Light guide plate and manufacturing method thereof, back light source and displaying device |
| CN105487291A (en) * | 2016-01-08 | 2016-04-13 | 京东方科技集团股份有限公司 | Backlight module and preparation method thereof and display device |
| CN106291789A (en) * | 2016-08-02 | 2017-01-04 | 青岛海信电器股份有限公司 | A kind of reflector plate and preparation method thereof, backlight module, display device |
| WO2019041787A1 (en) * | 2017-09-01 | 2019-03-07 | 青岛海信电器股份有限公司 | Liquid crystal display device |
| CN110675741A (en) * | 2019-09-29 | 2020-01-10 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN111752041A (en) * | 2020-07-08 | 2020-10-09 | 京东方科技集团股份有限公司 | Preparation method and reflection structure of mini-LED lamp panel |
| US10852582B2 (en) | 2018-10-26 | 2020-12-01 | Apple Inc. | Electronic device display with a backlight |
| CN112731575A (en) * | 2020-12-29 | 2021-04-30 | 宁波长阳科技股份有限公司 | Reflective film and display device |
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