CN110646974A - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN110646974A CN110646974A CN201910819467.1A CN201910819467A CN110646974A CN 110646974 A CN110646974 A CN 110646974A CN 201910819467 A CN201910819467 A CN 201910819467A CN 110646974 A CN110646974 A CN 110646974A
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- Prior art keywords
- light
- sheet
- guide plate
- diffusion sheet
- backlight module
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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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Abstract
The invention discloses a backlight module, which comprises an outer panel, an upper diffusion sheet, a light collecting sheet, a lower diffusion sheet, a light guide plate, a reflection sheet, a reflection cover and a light source lamp set, wherein the outer panel, the upper diffusion sheet, the light collecting sheet and the lower diffusion sheet are sequentially arranged from top to bottom and are arranged in a module protective shell; two sides of the light guide plate are provided with reflectors, a light source lamp group is arranged in each reflector, and the reflectors and the module protective shell are fixed with each other; the light guide plate is made of acrylic plastic and has a smooth surface; the reflection sheet is fixed at the bottom of the module protection shell, and the light guide plate is arranged above the reflection sheet; the section of the reflecting cover is of a semi-elliptical ring structure, and the light source lamp group is positioned at the focus of the elliptical structure; the invention reflects the light of the light source lamp group into the light guide plate, and supplies sufficient light sources with uniform brightness and distribution on the outer panel through the combined action of the reflector plate, the light collecting plate and the diffusion plate, so that the light guide plate can normally display images and has the advantages of high brightness, long service life and uniform light emission.
Description
Technical Field
The invention relates to the technical field of backlight module display, in particular to a backlight module.
Background
With the rapid development of display technology, liquid crystal display devices have advantages of light weight, thinness, small size, low power consumption, no radiation, relatively low manufacturing cost, and the like, and thus have been widely used in various information, communication, and consumer products due to their dominance in the current flat panel display field. Since the lcd panel of the lcd device does not have the light-emitting property, in order to adjust the brightness of the lcd device, a light source device, such as a backlight module, is provided for the lcd panel of the lcd device to provide a light beam with sufficient brightness and uniform distribution to the lcd panel.
The existing backlight module has poor light concentration of a light source of the lamp group, the utilization rate of the light source is crossed, the light source is realized by increasing the power of the light source in order to ensure the brightness, but the heat dissipation problem of high power is followed, and great inconvenience is brought to a user.
Disclosure of Invention
The present invention is directed to a backlight module, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a backlight module comprises an outer panel, an upper diffusion sheet, a light collecting sheet, a lower diffusion sheet, a light guide plate, a reflection sheet, a reflection cover and a light source lamp set, wherein the outer panel, the upper diffusion sheet, the light collecting sheet, the lower diffusion sheet and the light guide plate are sequentially arranged from top to bottom and are arranged in a module protective shell; two sides of the light guide plate are provided with reflectors, a light source lamp group is arranged in each reflector, and the reflectors and the module protective shell are fixed with each other; the light guide plate is made of acrylic plastic and has a smooth surface; the reflection sheet is fixed at the bottom of the module protection shell, and the light guide plate is arranged above the reflection sheet; the cross section of the reflector is in a semi-elliptical ring structure, and the light source lamp group is located at the focus of the elliptical structure.
Preferably, the outer panel is any one of a TN panel, a VA panel, an IPS panel, and a CPA panel.
Preferably, the upper diffusion sheet comprises an upper coating layer, a support layer and a lower coating layer, wherein the support layer is made of PET plastic, the upper coating layer is a light diffusion agent coating layer, and the lower coating layer is an antistatic agent coating layer.
Preferably, the light diffusant used in the upper coating is one or a mixture of more of nano barium sulfate, calcium carbonate and silicon dioxide, and the size of the diffusant is 10-20 μm; the antistatic agent used in the lower coating is one or a mixture of more of nano silicon carbide, nano aluminum oxide and nano indium tin oxide.
Preferably, the structure of the lower diffusion sheet is the same as that of the upper diffusion sheet, and the thickness ratio of the upper diffusion sheet to the lower diffusion sheet is 1: 0.5-0.8.
Preferably, the light collecting sheet is a continuous edge belt with a triangle on the upper side, the section of the edge belt is an isosceles triangle, the vertex angle of the triangle is 50-70 degrees, and the thickness of the light collecting sheet is 100-200 microns.
Preferably, a vacuum aluminum-plated layer is arranged on the inner side of the reflector, and the thickness of the vacuum aluminum-plated layer is not more than 10 μm.
Preferably, the ratio of the short axis to the long axis of the elliptical structure of the reflector is 1: 1-1.5, the long axis and the reflector are parallel to each other, and the light source lamp set is arranged at the focus inside the reflector.
Preferably, the bottom of the reflector plate is provided with a heat dissipation layer, the heat dissipation layer is composed of an aluminum sheet and a copper sheet, and the heat dissipation layer is arranged along the bottom of the module protection shell.
Preferably, the light source lamp set is a tubular cold cathode fluorescent lamp.
Compared with the prior art, the invention has the beneficial effects that: the invention can fully reflect the light of the light source lamp group into the light guide plate, and finally supply sufficient light sources with uniform brightness and distribution on the outer panel through the combined action of the reflector plate, the light collecting plate and the diffusion plate, so that the light source lamp can normally display images, and has the advantages of high brightness, long service life and uniform light emission.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an upper diffuser structure according to the present invention;
reference numbers in the figures: 1. an outer panel; 2. an upper diffusion sheet; 21. coating; 22. a support layer; 23. a lower coating layer; 3. a light collecting sheet; 31. a ridge belt; 4. a lower diffusion sheet; 5. a light guide plate; 6. a reflective sheet; 7. a module protective shell; 8. a reflector; 9. and a light source lamp group.
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.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-2, the present invention provides a technical solution: a backlight module comprises an outer panel 1, an upper diffusion sheet 2, a light collecting sheet 3, a lower diffusion sheet 4, a light guide plate 5, a reflection sheet 6, a reflection cover 8 and a light source lamp group 9, wherein the outer panel 1, the upper diffusion sheet 2, the light collecting sheet 3, the lower diffusion sheet 4 and the light guide plate 5 are sequentially arranged from top to bottom and are arranged in a module protective shell 7; two sides of the light guide plate 5 are provided with reflecting covers 8, a light source lamp group 9 is arranged in each reflecting cover 8, and the reflecting covers 8 and the module protective shell 7 are fixed with each other; the light guide plate 5 is made of acrylic plastic and has a smooth surface; the reflector plate 6 is fixed at the bottom of the module protective shell 7, and the light guide plate 5 is arranged above the reflector plate 6; the cross section of the reflector 8 is in a semi-elliptical ring structure, and the light source lamp group 9 is located at the focus of the elliptical structure.
Further, the outer panel 1 is any one of a TN panel, a VA panel, an IPS panel, and a CPA panel.
Further, the upper diffusion sheet 2 includes an upper coating 21, a support layer 22 and a lower coating 23, the support layer 22 is made of PET plastic, the upper coating 21 is a light diffusion agent coating, and the lower coating 23 is an antistatic agent coating.
Further, the light diffusion agent used in the upper coating 21 is one or a mixture of more of nano barium sulfate, calcium carbonate and silicon dioxide, and the size of the light diffusion agent is 10-20 μm; the antistatic agent used in the lower coating 23 is one or a mixture of nano silicon carbide, nano aluminum oxide and nano indium tin oxide.
Furthermore, the structure of the lower diffusion sheet 4 is the same as that of the upper diffusion sheet 2, and the thickness ratio of the upper diffusion sheet 2 to the lower diffusion sheet 4 is 1: 0.5-0.8.
Further, the light concentrating sheet 3 is a continuous edge belt 31 with a triangle shape arranged on the upper side, the section of the edge belt 31 is an isosceles triangle, the vertex angle of the triangle is 50-70 degrees, and the thickness of the light concentrating sheet 3 is 100-200 μm.
Further, a vacuum aluminum-plated layer is arranged on the inner side of the reflecting cover 8, and the thickness of the vacuum aluminum-plated layer is not more than 10 μm.
Furthermore, the ratio of the minor axis to the major axis of the elliptical structure of the reflector 8 is 1: 1-1.5, the major axis is parallel to the reflector 6, and the light source lamp group 9 is arranged at the focus inside the reflector 8.
Furthermore, a heat dissipation layer is arranged at the bottom of the reflector plate 6 and consists of an aluminum sheet and a copper sheet, and the heat dissipation layer is arranged along the bottom of the module protection shell 7.
Further, the light source lamp set 9 is a tubular cold cathode fluorescent lamp.
The working principle is as follows: when the LED lamp is actually used, the switch of the light source lamp group 9 is turned on, the cold cathode fluorescent lamp emits illumination, light rays enter the light guide plate 5 under the reflection of the reflecting cover 8, and the utilization rate of the light rays is increased by utilizing the principle of diffusion reflection under the action of the bottom reflecting sheet 6; after passing out of the light guide plate 5, the light enters the lower diffusion sheet 4 to uniformly diffuse the light source; the light enters the light collecting sheet 3, collects the light to increase the screen brightness, and then enters the upper diffusion sheet 2 to finally make the outer panel 1 brighten.
The upper side and the lower side of the upper diffusion sheet 2 and the lower diffusion sheet 4 are respectively provided with corresponding coatings, and the upper side is added with a light diffusant coating to enhance the diffusion of light; the lower side is added with an antistatic agent coating for preventing static electricity in the working process from interfering with illumination. The light collecting sheet 3 is provided with a triangular continuous ridge 31 at the upper side, and light is refracted through the triangular ridge 31 structure to be collected; the 8 inboard vacuum aluminum coated layers that are provided with of bowl, the vacuum aluminum coated layer structure is effectual to the reflection of light, sets up light source banks 9 in the focus department of oval bowl 8, can make light by abundant reflection. At 6 downside of reflector plate, set up the heat dissipation layer, the heat dissipation layer comprises aluminum sheet or copper sheet, and 7 bottoms of heat dissipation layer laminating module protective housing set to wear out from module protective housing 7, the banks of being convenient for generate heat and outwards distribute away via module protective housing 7, can provide a good operational environment, the long-time work of the light source banks 9 of being convenient for.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A backlight module is characterized in that: the light source module comprises an outer panel (1), an upper diffusion sheet (2), a light collecting sheet (3), a lower diffusion sheet (4), a light guide plate (5), a reflection sheet (6), a reflection cover (8) and a light source lamp group (9), wherein the outer panel (1), the upper diffusion sheet (2), the light collecting sheet (3), the lower diffusion sheet (4) and the light guide plate (5) are sequentially arranged from top to bottom and are arranged in a module protective shell (7); two sides of the light guide plate (5) are provided with reflecting covers (8), a light source lamp group (9) is arranged in each reflecting cover (8), and the reflecting covers (8) and the module protective shell (7) are fixed with each other; the light guide plate (5) is made of acrylic plastic and has a smooth surface; the reflection sheet (6) is fixed at the bottom of the module protection shell (7), and the light guide plate (5) is arranged above the reflection sheet (6); the section of the reflector (8) is of a semi-elliptical ring structure, and the light source lamp group (9) is located at the focus of the elliptical structure.
2. A backlight module according to claim 1, wherein: the outer panel (1) is any one of a TN panel, a VA panel, an IPS panel and a CPA panel.
3. A backlight module according to claim 1, wherein: the upper diffusion sheet (2) comprises an upper coating (21), a support layer (22) and a lower coating (23), wherein the support layer (22) is made of PET plastic, the upper coating (21) is a light diffusion agent coating, and the lower coating (23) is an antistatic agent coating.
4. A backlight module according to claim 3, wherein: the light diffusant used in the upper coating (21) is one or a mixture of more of nano barium sulfate, calcium carbonate and silicon dioxide, and the size of the diffusant is 10-20 mu m; the antistatic agent used in the lower coating (23) is one or a mixture of more of nano silicon carbide, nano aluminum oxide and nano indium tin oxide.
5. A backlight module according to claim 3, wherein: the structure of the lower diffusion sheet (4) is the same as that of the upper diffusion sheet (2), and the thickness ratio of the upper diffusion sheet (2) to the lower diffusion sheet (4) is 1: 0.5-0.8.
6. A backlight module according to claim 1, wherein: the light-collecting sheet (3) is a continuous edge belt (31) with a triangle on the upper side, the section of the edge belt (31) is an isosceles triangle, the vertex angle of the triangle is 50-70 degrees, and the thickness of the light-collecting sheet (3) is 100-200 mu m.
7. A backlight module according to claim 1, wherein: the inner side of the reflector (8) is provided with a vacuum aluminum-plated layer, and the thickness of the vacuum aluminum-plated layer is not more than 10 mu m.
8. A backlight module according to claim 1, wherein: the ratio of the short axis to the long axis of the elliptical structure of the reflector (8) is 1: 1-1.5, the long axis and the reflector (6) are parallel to each other, and the light source lamp group (9) is arranged at the focus inside the reflector (8).
9. A backlight module according to claim 1, wherein: the bottom of the reflector plate (6) is provided with a heat dissipation layer, the heat dissipation layer is composed of an aluminum sheet and a copper sheet, and the heat dissipation layer is arranged along the bottom of the module protection shell (7).
10. A backlight module according to claim 1, wherein: the light source lamp group (9) is a tubular cold cathode fluorescent lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910819467.1A CN110646974A (en) | 2019-08-31 | 2019-08-31 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910819467.1A CN110646974A (en) | 2019-08-31 | 2019-08-31 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110646974A true CN110646974A (en) | 2020-01-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910819467.1A Pending CN110646974A (en) | 2019-08-31 | 2019-08-31 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110646974A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030123248A1 (en) * | 2001-12-29 | 2003-07-03 | Lg.Philips Lcd Co., Ltd. | Backlight device and method of fabricating the same |
| TW200811541A (en) * | 2006-08-30 | 2008-03-01 | Univacco Technology Inc | Producing method of diffusion films and backlights in the producing method thereof |
| CN102829959A (en) * | 2012-08-16 | 2012-12-19 | 京东方科技集团股份有限公司 | Testing device and method for light transmittance spectrum of light guide plates |
| CN206133057U (en) * | 2016-09-14 | 2017-04-26 | 深圳跃升电子有限公司 | A reflection member for backlight module |
| CN206249274U (en) * | 2016-10-21 | 2017-06-13 | 广州视源电子科技股份有限公司 | Interactive intelligent tablet computer and backlight module |
-
2019
- 2019-08-31 CN CN201910819467.1A patent/CN110646974A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030123248A1 (en) * | 2001-12-29 | 2003-07-03 | Lg.Philips Lcd Co., Ltd. | Backlight device and method of fabricating the same |
| TW200811541A (en) * | 2006-08-30 | 2008-03-01 | Univacco Technology Inc | Producing method of diffusion films and backlights in the producing method thereof |
| CN102829959A (en) * | 2012-08-16 | 2012-12-19 | 京东方科技集团股份有限公司 | Testing device and method for light transmittance spectrum of light guide plates |
| CN206133057U (en) * | 2016-09-14 | 2017-04-26 | 深圳跃升电子有限公司 | A reflection member for backlight module |
| CN206249274U (en) * | 2016-10-21 | 2017-06-13 | 广州视源电子科技股份有限公司 | Interactive intelligent tablet computer and backlight module |
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Application publication date: 20200103 |
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