CN111965890A - Ultra-narrow structure of backlight frame - Google Patents

Ultra-narrow structure of backlight frame Download PDF

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Publication number
CN111965890A
CN111965890A CN202010751904.3A CN202010751904A CN111965890A CN 111965890 A CN111965890 A CN 111965890A CN 202010751904 A CN202010751904 A CN 202010751904A CN 111965890 A CN111965890 A CN 111965890A
Authority
CN
China
Prior art keywords
layer
light
screen
adhesive tape
diffusion
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.)
Pending
Application number
CN202010751904.3A
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Chinese (zh)
Inventor
李勇
马东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boxun Photoelectric Technology Hefei Co ltd
Original Assignee
Boxun Photoelectric Technology Hefei Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Boxun Photoelectric Technology Hefei Co ltd filed Critical Boxun Photoelectric Technology Hefei Co ltd
Priority to CN202010751904.3A priority Critical patent/CN111965890A/en
Publication of CN111965890A publication Critical patent/CN111965890A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133608—Direct backlight including particular frames or supporting means

Abstract

The invention discloses a backlight source frame ultra-narrow structure which comprises a diffusion silk-screen dot layer, a light absorption black adhesive tape, an LGP light guide layer, an LED light source, a composite prism layer, a light absorption adhesive tape layer, a diffusion layer and a reflection light source layer. The invention carries out dot spray printing on the diffusion layer and adds optical conduction capability, so that the distance from a point light source to a surface light source is reduced from 3.0-3.5mm to 1.0-1.5mm, the chin of the liquid crystal display is correspondingly reduced, the effect of approaching to the display effect of a full screen is achieved, and the visual enjoyment of a human body is increased; the technology is mature when the LED screen BLU is applied to the traditional LCD screen BLU, the yield is high, the related performance of the LCD screen is continuously used while the narrow chin is achieved, the screen is soft in light emitting, and the service life is long. The LCD screen can be used while the narrow jaw is achieved, the related performance of the LCD screen is kept, the screen is soft in light emitting, and the service life is longer.

Description

Ultra-narrow structure of backlight frame
Technical Field
The invention belongs to the field of module display, and particularly relates to an ultra-narrow structure of a backlight frame.
Background
OLEDs are also known as organic electroluminescent displays, organic light emitting semiconductors. The OLED is a current-type organic light emitting device, and emits light by injection and recombination of carriers, and the intensity of light emission is proportional to the injected current. Under the action of an electric field, holes generated by an anode and electrons generated by a cathode move, are respectively injected into a hole transport layer and an electron transport layer, and migrate to a light emitting layer. When the two meet at the light emitting layer, energy excitons are generated, thereby exciting the light emitting molecules to finally generate visible light.
Because the OLED screen is self-luminous through the pixel points, when the screen displays the same color for a long time, some elements can be aged due to continuous light emission, and the elements with different colors are aged, emit light, change is generated, and residual images can be left naturally. This phenomenon is commonly referred to as "burn-in".
The place of the 'screen burning' is not a burning pixel point, the surface of the 'screen burning' is a layer of organic compound film, and the organic materials have the service life and are slowly degraded and aged along with the increase of the service time and the heating. The OLED screen realizes dimming by self-luminous turning on and off the screen continuously, and in one period, the screen on time is long, the screen brightness is high, and the screen off time is long, and the screen brightness is low. The stroboscopic frequency is fast enough, and people can not distinguish, and watch for a long time and have certain injury to human eyes.
In the prior art, an industry-matched industrial chain is still immature, the production yield is low, and the popularization cannot be realized in a short time. The scheme is used for reducing the conduction distance while achieving more uniform distribution of point light sources in a required visual area plane by increasing the dot distribution of the diffusion layer, and is used for reducing the chin of the liquid crystal screen, so that the product is closer to full-screen display.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an ultra-narrow structure of a backlight frame, which can achieve the narrow chin and simultaneously use the related performance of an LCD screen, so that the screen is soft in light emission and longer in service life.
The purpose of the invention can be realized by the following technical scheme:
a backlight source frame ultra-narrow structure comprises a diffusion silk-screen dot layer, a light absorption black adhesive tape, an LGP light guide layer, an LED light emitting source, a composite prism layer, a light absorption adhesive tape layer, a diffusion layer and a reflection light source layer.
Furthermore, a diffusion silk-screen dot layer, a light absorption black adhesive tape, an LGP light guide layer, an LED light source, a composite prism layer and a diffusion layer are arranged between the shading adhesive tape layer and the reflection light source layer.
Furthermore, one side of the shading adhesive tape layer is attached to one side of the composite prism layer, the other side of the composite prism layer is attached to one side of the diffusion silk-screen dot layer and one side of the light absorption black adhesive tape, and the light absorption black adhesive tape is arranged at one end of the diffusion silk-screen dot layer and wraps the diffusion silk-screen dot layer.
Further, diffusion silk screen printing dot layer and extinction black adhesive tape's opposite side and the one side laminating of diffusion layer, the opposite side of diffusion layer and the one side laminating of LGP leaded light layer and LED light emitting source, the opposite side of LGP leaded light layer and LED light emitting source and the one side laminating of reverberation source layer, the one end on LGP leaded light layer is arranged in to the LED light emitting source to parcel LGP leaded light layer.
The invention has the beneficial effects that:
1. the invention carries out dot spray printing on the diffusion layer and adds optical conduction capability, so that the distance from a point light source to a surface light source is reduced from 3.0-3.5mm to 1.0-1.5mm, the chin of the liquid crystal display is correspondingly reduced, the effect of approaching to the display effect of a full screen is achieved, and the visual enjoyment of a human body is increased;
2. the invention is applied in the traditional LCD screen BLU, has mature technology and high yield, continues to use the related performance of the LCD screen while reaching the narrow chin, and has soft screen luminescence and long service life.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of the principle of light refraction for an embodiment of the present invention;
fig. 2 is a side view of the overall structure of an embodiment of the present invention.
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 is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
As shown in fig. 1 and 2, the ultra-narrow structure of the backlight frame includes a diffusion screen printing dot layer 1, a light absorption black adhesive tape 2, an LGP light guide layer 3, an LED light source 4, a composite prism layer 5, a light shielding adhesive tape layer 6, a diffusion layer 7, and a reflection light source layer 8.
And a diffusion silk-screen dot layer 1, a light absorption black adhesive tape 2, an LGP light guide layer 3, an LED light emitting source 4, a composite prism layer 5 and a diffusion layer 7 are arranged between the shading adhesive tape layer 6 and the reflection light source layer 8. One side of the shading adhesive tape layer 6 is attached to one side of the composite prism layer 5, the other side of the composite prism layer 5 is attached to one side of the diffusion silk-screen dot layer 1 and one side of the light absorption black adhesive tape 2, and the light absorption black adhesive tape 2 is arranged at one end of the diffusion silk-screen dot layer 1 and wraps the diffusion silk-screen dot layer 1. Diffusion silk screen printing dot layer 1 laminates with the opposite side of extinction joint strip 2 and one side of diffusion layer 7, the opposite side of diffusion layer 7 and the laminating of one side of LGP leaded light layer 3 and LED light emitting source 4, the opposite side of LGP leaded light layer 3 and LED light emitting source 4 and the laminating of one side of reflection light source layer 8, the one end on LGP leaded light layer 3 is arranged in to LED light emitting source 4 to parcel LGP leaded light layer 3.
During the actual use, send out light by LED light emitting source 4 earlier, then in light jets into LGP leaded light layer 3 to refract many times in LGP leaded light layer 3, wherein reflection light source layer 8 can go out light refraction completely, and diffusion layer 7 can be to some refractions of the light of jetting, and another part passes diffusion layer 7 and carries out the diffusion. One part of light rays diffused by the diffusion layer 7 are emitted to the light absorption black adhesive tape 2, the other part of the light rays are emitted to the diffusion silk-screen dot layer 1, light emitted into the light absorption black adhesive tape 2 is absorbed by the light absorption black adhesive tape 2, light emitted into the diffusion silk-screen dot layer 1 is refracted again through the dot structure of the diffusion silk-screen dot layer 1, and the light rays penetrate through the composite prism layer 5 and the shading adhesive tape layer 6 to be emitted to the outside. The mode can enhance the light transmission capability, so that the distance from the point light source to the surface light source is reduced from the conventional 3.0-3.5mm to 1.0-1.5mm, the chin of the liquid crystal display is correspondingly reduced, the effect of approaching to the display effect of a full screen is achieved, and the visual enjoyment of a human body is increased.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims (3)

1. A backlight source frame ultra-narrow structure is characterized by comprising a diffusion silk-screen dot layer (1), a light absorption black adhesive tape (2), an LGP light guide layer (3), an LED light emitting source (4), a composite prism layer (5), a light shielding adhesive tape layer (6), a diffusion layer (7) and a reflection light source layer (8);
and a diffusion silk-screen dot layer (1), a light absorption black adhesive tape (2), an LGP light guide layer (3), an LED light source (4), a composite prism layer (5) and a diffusion layer (7) are arranged between the shading adhesive tape layer (6) and the reflection light source layer (8).
2. The ultra-narrow structure of the backlight frame as claimed in claim 1, wherein one side of the light-shielding adhesive tape layer (6) is attached to one side of the composite prism layer (5), the other side of the composite prism layer (5) is attached to one side of the diffusion silk-screen dot layer (1) and one side of the light-absorbing black adhesive tape (2), and the light-absorbing black adhesive tape (2) is disposed at one end of the diffusion silk-screen dot layer (1) and wraps the diffusion silk-screen dot layer (1).
3. The ultra-narrow structure of backlight frame as claimed in claim 1, wherein the other side of the light absorbing black stripe layer (2) and the diffusing layer (7) are attached to the other side of the light-screen dot layer (1), the other side of the diffusing layer (7) is attached to one side of the LGP light guiding layer (3) and one side of the LED light emitting source (4), the other side of the LGP light guiding layer (3) and the LED light emitting source (4) is attached to one side of the light reflecting source layer (8), and the LED light emitting source (4) is disposed at one end of the LGP light guiding layer (3) and wraps the LGP light guiding layer (3).
CN202010751904.3A 2020-07-30 2020-07-30 Ultra-narrow structure of backlight frame Pending CN111965890A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010751904.3A CN111965890A (en) 2020-07-30 2020-07-30 Ultra-narrow structure of backlight frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010751904.3A CN111965890A (en) 2020-07-30 2020-07-30 Ultra-narrow structure of backlight frame

Publications (1)

Publication Number Publication Date
CN111965890A true CN111965890A (en) 2020-11-20

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1566686A1 (en) * 2004-02-20 2005-08-24 ETA SA Manufacture Horlogère Suisse Backlight device for display element
CN110609414A (en) * 2019-08-13 2019-12-24 深圳市德仓科技有限公司 Backlight based on diffusion printing ink and manufacturing method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1566686A1 (en) * 2004-02-20 2005-08-24 ETA SA Manufacture Horlogère Suisse Backlight device for display element
CN110609414A (en) * 2019-08-13 2019-12-24 深圳市德仓科技有限公司 Backlight based on diffusion printing ink and manufacturing method thereof

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Application publication date: 20201120