CN109239837B - Light guide plate side reflector plate attaching process and light guide plate - Google Patents
Light guide plate side reflector plate attaching process and light guide plate Download PDFInfo
- Publication number
- CN109239837B CN109239837B CN201811336434.3A CN201811336434A CN109239837B CN 109239837 B CN109239837 B CN 109239837B CN 201811336434 A CN201811336434 A CN 201811336434A CN 109239837 B CN109239837 B CN 109239837B
- Authority
- CN
- China
- Prior art keywords
- light guide
- guide plate
- sheet
- powder
- reflective material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a light guide plate side reflector plate attaching process and a light guide plate, wherein the process comprises the following steps: adding 15-45% of reflective material powder by mass percent into a transparent liquid viscous raw material to prepare a liquid viscous reflective material; coating the liquid sticky reflecting material on a thin substrate to form a sheet thin film type reflecting material; attaching the sheet film type reflecting material to the end face of the light guide plate; and curing the sheet film type reflecting material on the end face of the light guide plate. The invention adopts the liquid state reflecting material with certain viscosity to be evenly processed on the plane thin sheet base material to form the sheet film type reflecting material, so that the sheet film type reflecting material can be attached to one or more light guide plates, and the processing efficiency of the side reflecting sheet of the light guide plate can be improved.
Description
Technical Field
The invention relates to the field of liquid crystal display backlight modules, in particular to a light guide plate and a process for attaching a side reflector plate of the light guide plate.
Background
In order to optimize the optical utilization of the side-entry backlight module more efficiently, the non-light-incident side end surface of the Light Guide Plate (LGP) needs to be processed and attached with side reflective sheets with a certain reflectivity. The side reflector plate mainly uses a white substrate or a silver substrate as a reflecting layer, a transparent adhesive layer with a certain thickness is processed on the reflecting surface of the reflecting substrate, and the reflecting surface is attached to the non-incident light end surface of the light guide plate through the adhesive layer, so that the optimal utilization of the light efficiency of the side-entering type backlight module is realized. However, in actual product processing and application, the side reflector sheet is attached to the end face of the LGP only one at a time, and the side reflector sheet is processed inefficiently.
Disclosure of Invention
The invention mainly aims to provide a light guide plate side reflector attaching process and a light guide plate, and aims to improve the processing efficiency of the light guide plate side reflector.
In order to achieve the above object, the invention provides an attaching process of a side reflector of a light guide plate, the attaching process of the side reflector comprising:
adding 15-45% of reflective material powder by mass percent into a transparent liquid viscous raw material to prepare a liquid viscous reflective material;
coating the liquid sticky reflecting material on a thin substrate to form a sheet thin film type reflecting material;
attaching the sheet film type reflecting material to the end face of the light guide plate;
and curing the sheet film type reflecting material on the end face of the light guide plate.
Preferably, the transparent liquid viscous raw material is one or a mixture of more of acrylic ink, epoxy resin ink, polyurethane ink, polyester ink, vinyl ink or rubber ink.
Preferably, the transparent liquid viscous raw material is one of silicone structural adhesives, polyurethane adhesives or organic silicon structural adhesives.
Preferably, the reflective material powder is one or a mixture of more of silicon dioxide, titanium dioxide, white PET (polyethylene terephthalate) fine powder or yellow fluorescent powder.
Preferably, the reflective material powder is a mixture of yellow fluorescent powder and one or more of silicon dioxide, titanium dioxide, taibai powder or white PET fine powder.
Preferably, the liquid viscous reflecting material is a spraying material with one or more of silicon dioxide, titanium dioxide, taibai powder or white PET fine powder.
Preferably, the coating thickness of the liquid viscous reflecting material is 50um to 220 um.
Preferably, the sheet-shaped film-type reflective material is cured on the end face of the light guide plate through a curing process, and the curing process is a thermal curing process or a UV curing process.
Preferably, the sheet-shaped film type reflecting material is attached to the end faces of the plurality of light guide plates which are stacked orderly.
The invention also provides a light guide plate, which comprises a light guide plate and a reflector plate attached to the non-light-incident side end surface of the light guide plate, wherein the reflector plate is attached to the light guide plate by the process as claimed in any one of claims 1 to 9.
According to the technical scheme, the liquid-state reflecting material with certain viscosity is uniformly processed on the plane sheet base material to form the sheet-shaped film-type reflecting material, so that the sheet-shaped film-type reflecting material can be attached to one or more light guide plates, and the processing efficiency of the side reflecting sheet of the light guide plate can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic process flow diagram of a first embodiment of the inventive subject matter;
FIG. 2 is a schematic diagram of a first embodiment of a product according to the present invention;
fig. 3 is an enlarged view of a portion a of fig. 2.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
200 | |
| 300 | Viscous liquid |
400 | Powder of light reflecting material |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a process for attaching a side reflector of a light guide plate 100, the process comprising:
s10, adding 15-45% by mass of reflective material powder 400 into the transparent liquid viscous raw material 300 to prepare a liquid viscous reflective material;
s20, coating the liquid sticky reflecting material on a thin sheet base material to form a sheet thin film type reflecting material;
s30, attaching the sheet film type reflecting material on the end face of the light guide plate;
and S40, curing the sheet-shaped film type reflecting material on the end face of the light guide plate.
In step S10, adding reflective material powder 400 into the transparent liquid viscous raw material 300, mixing and blending to form a liquid viscous reflective material, wherein the mass percentage of the reflective material powder 400 is 15% to 45%, and in step S20, the liquid viscous reflective material may be coated on a sheet substrate by spraying or coating to form a sheet-like thin film reflective material; in step S30, the sheet-like film-type reflective material is attached to the end face of the light guide plate 100, and at this time, the liquid sticky reflective material is covered on the non-light-incident-side end face of the light guide plate 100, and the sheet-like film-type reflective material is cured on the non-light-incident-side end face of the light guide plate 100.
Referring to fig. 2 and 3, in the above-mentioned process, a plurality of light guide plates 100 can be stacked in order, and at this time, the whole-surface reflective layer of the sheet-shaped film-type reflective material is attached and transferred onto the end surfaces of the plurality of light guide plates 100 stacked in order, so that the synchronous attachment operation of the side reflective sheets of the plurality of light guide plates 100 can be realized. The stacking manner of the light guide plates 100 may be set as required, and in the present invention, at least 50 light guide plates 100 are stacked in order, and the attaching operation of the side reflective sheets of the light guide plates 100 is realized. By adopting the sheet-shaped film type reflective material to be integrally attached to the plurality of light guide plates 100, the processing efficiency of the light guide plate side reflective sheet can be greatly improved.
In this embodiment, the coating thickness of the viscous liquid reflective material is 50um to 220um, and the specific thickness is selected according to the brightness of the actual product, which is about 150 um. In step S40, the sheet-like film-type reflective material is cured on the end face of the light guide plate by a thermal curing process or a UV curing (a "radiation hardening process" in which a chemical is irradiated with a UV light source to stimulate the "light initiator" of the scale contained in the chemical by the UV light source and to cause glue hardening of the "polymer monomer" contained in the chemical in a very short time)
In this embodiment, the transparent liquid viscous raw material 300 and the reflective material are blended according to the above formula to form a liquid viscous reflective material, which can completely avoid the liquid state of the fluid of the existing reflective material, and in the processing process, can avoid the problem that the reflective material in the existing process can enter the effective light emitting area of the product through the surface microstructure grooves of the light guide plate to affect the display performance of the product.
In this embodiment, the reflective material powder 400 is mixed with the liquid sticky raw material 300 by 15-45% by mass to form the liquid sticky reflective material, so that the reflective material powder 400 is uniformly distributed in the liquid sticky raw material 300, and a good adhesion effect and a falling-off prevention effect can be achieved.
In this embodiment, when the reflective material powder 400 with a mass percentage of 15% is used, the viscosity of the liquid viscous reflective material prepared is relatively high, and the thickness of the liquid viscous reflective material coating can be relatively reduced; when the reflecting material powder 400 with the mass percentage of 45% is adopted, the mass percentage of the liquid viscous raw material 300 is relatively low, the viscosity of the liquid viscous reflecting material is low, and the coating thickness of the liquid viscous reflecting material can be increased to achieve attachment.
When the mass percentage of the reflective material powder 400 is less than 15%, the reflective effect of the liquid viscous reflective material is affected; when the mass percentage of the reflective material powder 400 is greater than 45%, the reflective material powder in the liquid viscous reflective material may be introduced into the effective light emitting area of the light guide plate, which may affect the visual effect of the product.
The liquid sticky reflecting material is processed to the non-incident light side end face of the light guide plate through the process flow, the reflecting material has a certain strong penetrating adhesion effect on the light guide plate, and the reflecting material is different from a traditional side reflecting sheet which is adhered to the end face of the light guide plate through an adhesive tape, so that the reflecting material and the light guide plate are integrated, the possibility of falling and separation is avoided, and the problems that the reliability experiment side anti-falling and the thinning (the thickness of the light guide plate is less than 2.0mm) caused by the use of the traditional side reflecting sheet, the light guide plate side anti-peeling force is insufficient, and the product quality is influenced by the side anti-.
In another embodiment of the present invention, the transparent liquid viscous material 300 is one or a mixture of more of acrylic ink, epoxy resin ink, polyurethane ink, polyester ink, vinyl ink, and rubber ink; the reflective material powder 400 is one or more of silicon dioxide, titanium dioxide, white PET (polyethylene terephthalate) fine powder or yellow fluorescent powder. The mass percentage of the reflecting material powder 400 is controlled to be 15-45%.
For example, the smaller the distance from the edge of the light guide plate to the effective light emitting area of the television is, the more easily the light intensity and brightness of the light reflected by the side reflecting sheet can be perceived by human eyes, and the existing side reflecting products all adopt a reflection type base material, and the angle of the reflected light directly enters the visible area of the television, so that the problem of bright edge is caused. In this embodiment, the addition ratio of the reflective material powder 400 is adjusted to change the light reflection effect thereof, so as to realize multi-angle and multi-directional diffuse reflection effect, disperse the light effect of the direct reflection thereof, and achieve the effect of solving the bright edge.
In this embodiment, the viscosity of the liquid viscous reflective material can be achieved by adjusting the mass percentage of the reflective material powder 400 and adjusting the addition ratio of the diluent differently, and the requirement for the viscosity needs to be determined according to the influence of the product processing on the edge permeation effect. For example, if the viscosity is too low, the reflective material may be introduced into the effective light-emitting area of the light guide plate during coating, which may affect the quality and appearance of the product. The control of the adhesion thickness of the end face of the light guide plate is realized by controlling the viscosity, so that the edge light rays are subjected to total reflection and diffuse reflection in different degrees, and the problems of various tastes and visual effects of the edge of a product are solved.
The following is a third embodiment of the present invention, which is different from the second embodiment in that the liquid viscous raw material 300 is a transparent liquid viscous raw material 300 selected from one of silicone structural adhesives, polyurethane adhesives or silicone structural adhesives, and the reflective material powder 400 is one or a mixture of more of silicon dioxide, titanium dioxide, white powder, white PET fine powder or yellow fluorescent powder. The ratio and technical effects are the same as those of the second embodiment, and are not described again.
The following is a fourth embodiment of the present invention, in which the transparent liquid viscous material 300 is one or a mixture of more of acrylic ink, epoxy resin ink, polyurethane ink, polyester ink, vinyl ink, and rubber ink; or one of silicone structural adhesives, polyurethane adhesives or organic silicon structural adhesives; the reflective material powder 400 is a mixture of yellow fluorescent powder and one or more of silicon dioxide, titanium dioxide, taibai powder or white PET fine powder.
In this embodiment, the reflective material powder 400 must include yellow phosphor, so that the yellow phosphor and the silica, the titanium dioxide, the taibai powder or the white PET fine powder form the reflective material powder 400. The yellow phosphor has the characteristics of absorbing blue light and converting the blue light into backlight. When blue edges leak at the edges of finished quantum dot products, the excessive blue light cannot be converted into white light through the quantum film, the light guide plate cut end faces are processed by adopting materials with split fluorescent powder, and the excessive blue light at the edges of the light guide plate is converted into white light in advance, so that the problem of blue edge leakage at the edges of the quantum dot products is solved.
The following is a fourth embodiment of the present invention, in which the liquid viscous reflective material is a spray coating material with one or more of silicon dioxide, titanium dioxide powder or white PET fine powder. In this embodiment, the liquid viscous reflective material is prepared as a spray coating material, and when being processed, the spray coating material is directly sprayed on the sheet base material, so that the spray coating material can be more easily coated on the sheet base material, and then the processing is more convenient.
The invention not only limits the solution of the problem of bright lines reflected by the side edge attached to the light-emitting side of single-edge incident light, but also is suitable for solving the problem of uneven brightness of corners of any designed liquid crystal display module. The present invention is directed to a liquid reflective material with a certain viscosity for resolving the visual effect of image quality.
The liquid sticky reflecting material and the sheet substrate form the sheet film type reflecting material, so that the side edge reflecting sheet of the multi-light guide plate can be integrally attached conveniently, and the processing efficiency of the side edge reflecting sheet of the light guide plate is improved; the light efficiency of the side-entry backlight module can be effectively and optimally utilized by adopting a proportioning mode that the mass percent of the reflective material powder is 15-45%. Meanwhile, the reflectivity of the liquid viscous reflecting material is adjusted, namely the mass percentage of the reflecting material powder is adjusted, and the problem of bright edges of the ultra-narrow frame product is solved by reflecting light to different degrees; the viscosity of the liquid viscous reflecting material can be adjusted to control the attachment thickness of the end face of the light guide plate, so that the edge light can be totally reflected and diffusely reflected to different degrees, and the problem of the visual effect of a plurality of tastes of the edge of the product can be solved.
The invention also discloses a light guide plate, which comprises a light guide plate and a reflector plate attached to the non-incident side end surface of the light guide plate, wherein the reflector plate is attached to the light guide plate through the process in the embodiment. The light guide plate processed by the process can solve the problem of low processing efficiency of side-pasting and attaching of the light guide plate, and is beneficial to reducing the cost of the finished product of the light guide plate; the produced product is stable in reliable reliability experiment, and the development period of the product is shortened; the product quality is stable, and the market competitiveness of enterprises can be promoted.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a light guide plate side reflector plate attaching process, its characterized in that, the attaching process of side reflector plate includes:
adding 15-45% of reflective material powder by mass percent into a transparent liquid viscous raw material to prepare a liquid viscous reflective material;
coating the liquid sticky reflecting material on a thin substrate to form a sheet thin film type reflecting material;
attaching the sheet film type reflecting material to the end face of the light guide plate;
and curing the sheet film type reflecting material on the end face of the light guide plate.
2. The process of claim 1, wherein the transparent liquid viscous material is one or more of acrylic ink, epoxy ink, polyurethane ink, polyester ink, vinyl ink, and rubber ink.
3. The process of claim 1, wherein the transparent liquid viscous material is one of silicone structural adhesives, polyurethane adhesives, or silicone structural adhesives.
4. The process of claim 2 or 3, wherein the reflective material powder is one or more of silicon dioxide, titanium dioxide, white powder, white PET fine powder, or yellow phosphor.
5. The process of claim 2 or 3, wherein the reflective material powder is a mixture of yellow phosphor and one or more of silica, titania, taibai powder or white PET fine powder.
6. The process of claim 1, wherein the liquid viscous reflective material is a spray coating material containing one or more of silica, titanium dioxide powder or white PET fine powder.
7. The process of claim 1, wherein the thickness of the liquid viscous reflective material is 50um to 220 um.
8. The process of claim 1, wherein the sheet-like film-type reflective material is cured on the end surface of the light guide plate by a curing process, wherein the curing process is a thermal curing process or a UV curing process.
9. The process of claim 1, wherein the sheet-like film-type reflective material is integrally attached to the end surfaces of the plurality of light guide plates stacked in order.
10. A light guide plate comprising a light guide plate and a reflective sheet attached to a non-light-incident-side end surface of the light guide plate, wherein the reflective sheet is attached to the light guide plate by the process according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336434.3A CN109239837B (en) | 2018-11-09 | 2018-11-09 | Light guide plate side reflector plate attaching process and light guide plate |
| PCT/CN2019/115049 WO2020093945A1 (en) | 2018-11-09 | 2019-11-01 | Side edge reflecting plate attaching process of light guide plate and light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336434.3A CN109239837B (en) | 2018-11-09 | 2018-11-09 | Light guide plate side reflector plate attaching process and light guide plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109239837A CN109239837A (en) | 2019-01-18 |
| CN109239837B true CN109239837B (en) | 2020-11-03 |
Family
ID=65077917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811336434.3A Active CN109239837B (en) | 2018-11-09 | 2018-11-09 | Light guide plate side reflector plate attaching process and light guide plate |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109239837B (en) |
| WO (1) | WO2020093945A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109239837B (en) * | 2018-11-09 | 2020-11-03 | 深圳Tcl新技术有限公司 | Light guide plate side reflector plate attaching process and light guide plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509987A (en) * | 2009-03-19 | 2009-08-19 | 旭丽电子(广州)有限公司 | Light guide board and back light module unit using the light guide board |
| CN102116893A (en) * | 2011-03-10 | 2011-07-06 | 广州创维平面显示科技有限公司 | Light guide plate manufacturing method, light guide plate, backlight module and liquid crystal display |
| CN102707369A (en) * | 2012-06-07 | 2012-10-03 | 昆山市诚泰电气股份有限公司 | Colored light guide plate and LED (Light Emitting Diode) plane light source provided with colored light guide plate |
| CN106681051A (en) * | 2015-11-09 | 2017-05-17 | 宁波长阳科技股份有限公司 | Reflecting film for side type quantum dot display module and preparation method thereof |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003007112A (en) * | 2001-06-21 | 2003-01-10 | Casio Comput Co Ltd | Surface light source |
| CN1735637A (en) * | 2002-11-08 | 2006-02-15 | 三菱化学株式会社 | Radiation-curable resin composition and cured product thereof |
| KR20050068263A (en) * | 2003-12-29 | 2005-07-05 | 엘지.필립스 엘시디 주식회사 | Liquid crystal display device manufactured by a stacking method |
| CN101952646B (en) * | 2008-02-22 | 2014-01-29 | 3M创新有限公司 | Backlights having selected output light flux distributions and display systems using same |
| CN101747681B (en) * | 2008-12-19 | 2012-07-18 | 京东方科技集团股份有限公司 | Printing ink and preparation method thereof as well as method for preparing membrane material |
| TWI434085B (en) * | 2010-07-23 | 2014-04-11 | Entire Technology Co Ltd | Uniform reflective light-guide apparatus with micro-structure, and a backlight module and an lcd device having the same |
| CN203054415U (en) * | 2012-12-06 | 2013-07-10 | 广州奥翼电子科技有限公司 | Improved electronic paper display device |
| CN203444132U (en) * | 2013-09-24 | 2014-02-19 | 陈蕾 | Light guide plate and backlight LED module comprising same |
| CN103777261B (en) * | 2014-02-10 | 2016-03-02 | 张家港康得新光电材料有限公司 | A kind of reflectance coating |
| JP6385020B2 (en) * | 2015-03-09 | 2018-09-05 | シャープ株式会社 | Lighting device, display device, and television receiver |
| CN205103428U (en) * | 2015-10-27 | 2016-03-23 | 翰博高新材料(合肥)股份有限公司 | A device that is used for attached light guide plate terminal surface edge reflector plate |
| CN106405720A (en) * | 2016-06-21 | 2017-02-15 | 合肥惠科金扬科技有限公司 | Light guide plate, light guide plate manufacturing method, backlight module and display device |
| CN106054459A (en) * | 2016-08-18 | 2016-10-26 | 深圳创维－Rgb电子有限公司 | Ultrathin backlight module preparing method, ultrathin backlight module preparing device and television |
| CN206247159U (en) * | 2016-12-21 | 2017-06-13 | 深圳Tcl新技术有限公司 | Backlight module and display device |
| CN107420856B (en) * | 2017-07-11 | 2020-01-03 | 深圳市华星光电技术有限公司 | Reflector plate, manufacturing method thereof and backlight module |
| CN109239837B (en) * | 2018-11-09 | 2020-11-03 | 深圳Tcl新技术有限公司 | Light guide plate side reflector plate attaching process and light guide plate |
-
2018
- 2018-11-09 CN CN201811336434.3A patent/CN109239837B/en active Active
-
2019
- 2019-11-01 WO PCT/CN2019/115049 patent/WO2020093945A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509987A (en) * | 2009-03-19 | 2009-08-19 | 旭丽电子(广州)有限公司 | Light guide board and back light module unit using the light guide board |
| CN102116893A (en) * | 2011-03-10 | 2011-07-06 | 广州创维平面显示科技有限公司 | Light guide plate manufacturing method, light guide plate, backlight module and liquid crystal display |
| CN102707369A (en) * | 2012-06-07 | 2012-10-03 | 昆山市诚泰电气股份有限公司 | Colored light guide plate and LED (Light Emitting Diode) plane light source provided with colored light guide plate |
| CN106681051A (en) * | 2015-11-09 | 2017-05-17 | 宁波长阳科技股份有限公司 | Reflecting film for side type quantum dot display module and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020093945A1 (en) | 2020-05-14 |
| CN109239837A (en) | 2019-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11333314B2 (en) | Lighting apparatus having an optical module with a half-mirror member | |
| EP2737244B1 (en) | Lighting device and liquid crystal display using the same | |
| CN101270266B (en) | Adhesive double coated tape | |
| CN104864318B (en) | Backlight module and display device | |
| US20210325731A1 (en) | Backlight module, driving method thereof and display apparatus | |
| JP5616639B2 (en) | Light diffusive sheet and backlight device using the same | |
| CN101995595A (en) | Optical sheet for controlling the direction of ray of light | |
| JP2002311214A (en) | Optical film and method for manufacturing the same | |
| CN109239837B (en) | Light guide plate side reflector plate attaching process and light guide plate | |
| JP4782865B2 (en) | Backlight device | |
| EP2128662A1 (en) | Optical sheet, backlight unit, and liquid crystal display | |
| CN101595404A (en) | Optical composite and manufacture method thereof | |
| CN111258116A (en) | Display device | |
| KR101718486B1 (en) | Back Light Unit and Display Apparatus | |
| US9020315B2 (en) | Optical sheet, backlight unit using the same and method for producing the same | |
| KR101839563B1 (en) | Display Apparatus | |
| CN114236905A (en) | Backlight module and liquid crystal display device | |
| KR101987224B1 (en) | The light guide plate having pattern consisted of plural dots | |
| KR101933141B1 (en) | Optical sheet, backlight unit and display device including the same | |
| CN211786501U (en) | Display device | |
| CN210123511U (en) | Optical diaphragm group and backlight module | |
| KR20200095169A (en) | Optical sheet for backlight unit | |
| KR102038609B1 (en) | The light guide plate having pattern consisted of plural dots | |
| CN114089562B (en) | Diffusion plate, preparation method, backlight module and display device | |
| CN209989308U (en) | Light source reflection film of notebook computer display screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ji Honglei Inventor after: Deng Tianying Inventor after: Qiang Kewen Inventor after: Chen Xijun Inventor before: Ji Honglei Inventor before: Deng Tianying Inventor before: Qiang Kewen Inventor before: Chen Xijun |