CN116381986A - Glass lamp panel assembly and method of manufacturing the same - Google Patents
Glass lamp panel assembly and method of manufacturing the same Download PDFInfo
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- CN116381986A CN116381986A CN202310374239.4A CN202310374239A CN116381986A CN 116381986 A CN116381986 A CN 116381986A CN 202310374239 A CN202310374239 A CN 202310374239A CN 116381986 A CN116381986 A CN 116381986A
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- 239000011521 glass Substances 0.000 title claims abstract description 221
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000003292 glue Substances 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 51
- 239000012790 adhesive layer Substances 0.000 claims description 13
- 238000005530 etching Methods 0.000 claims description 7
- 238000003848 UV Light-Curing Methods 0.000 claims description 3
- 239000012939 laminating adhesive Substances 0.000 claims description 3
- 238000007650 screen-printing Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 description 24
- 230000000644 propagated effect Effects 0.000 description 14
- 239000000463 material Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 239000004793 Polystyrene Substances 0.000 description 11
- 229920002223 polystyrene Polymers 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003486 chemical etching Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a glass lamp panel assembly, which comprises a glass cover plate and a glass lamp panel, wherein a first groove and a second groove are concavely arranged on one side surface of the glass cover plate, the first groove is arranged in an array manner, the second groove is arranged at the edge position of the glass cover plate, a first rough pattern and a second rough pattern are arranged on the other side surface of the glass cover plate, the first rough pattern is opposite to the first groove, and the second rough pattern is arranged at a gap position between the first grooves; the surface of the first rough pattern is provided with a reflecting layer, the second groove is filled with UV glue to form a bonding glue layer, a plurality of LED lamps which are arranged in an array are arranged on the glass lamp panel, the glass lamp panel is adhered to the glass cover plate through the bonding glue layer, and the LED lamps are correspondingly accommodated in the first groove. The glass lamp panel component can increase the transmission path of light rays in the horizontal direction, so that a uniform surface light source can be obtained, and the glass lamp panel component can bear the high heat of an LED lamp and meet the thickness requirement of thinning. The invention discloses a manufacturing method of a glass lamp panel assembly.
Description
Technical Field
The present invention relates to a backlight system for a liquid crystal display, and more particularly, to a glass lamp panel assembly capable of satisfying a thickness requirement of a slim type and bearing high heat of a lamp panel, and realizing a uniform surface light source, and a method for manufacturing the same.
Background
A backlight system is required in a Liquid Crystal Display (LCD) to provide a uniform surface light source, and a conventional scheme in the backlight system 1 'is shown in fig. 1, in which an LED light source 10' and a lens are disposed at the bottom, and then a diffusion plate 20 'is disposed at a height position of a distance h, and light of a plurality of LED light sources is changed into a uniform surface light source through the diffusion plate 20', which has a disadvantage of a large thickness.
With the development of LCD technology, in order to pursue thinning and dynamic backlight technology, in recent years, a Mini-LED technology has been developed, and an LCD system 1 ' with a Mini-LED technology is shown in fig. 2, in which the bottom is a Mini-LED Board 10 ', and the Mini-LED thereon is a blue LED with a small size, typically between 100 and 500 microns, and thousands of blue LEDs are provided on a Mini-LED Board 10 '. And a diffusion plate 20 'is placed at a position with a certain distance (OD) from the Mini-LED lamp panel 10', so as to convert the lattice blue light emitted by thousands of Mini-LEDs into a uniform surface light source. Disposed above the diffusion plate 20 'are, in order, an OD film 30', an optical film 40 ', and an LCD module 50'. In general, in order to achieve a thinner profile, it is required that the diffusion plate 20 'be placed directly on the surface of the Mini-LED lamp panel, and the thinner the diffusion plate 20', the better.
However, a commonly used diffusion plate material is Polystyrene (PS for short), and PS material is a polymer optical material with light diffusion property. The working principle of the PS diffusion plate is that the PS diffusion plate contains many diffusion particles therein, and when the optical fiber enters the diffusion plate, the diffusion particles scatter light, and when the thickness of the diffusion plate 20' is reduced, the scattering effect is reduced, so that a uniform surface light source is not easy to form. The light panel 10 'generates much heat when emitting light, and the diffusion plate 20' is directly placed on the surface of the light panel 10 'in the Mini-LED technology, so that the temperature of the diffusion plate 20' becomes high after absorbing the heat, but the PS material is an organic material and cannot bear the higher temperature. Therefore, the existing PS diffusion plate cannot meet the technical requirements of the Mini-LED backlight system based on the effects of the thinning requirement and the temperature.
Therefore, it is necessary to provide a glass lamp panel assembly and a manufacturing method thereof, which can meet the requirements of thickness reduction and high heat of a lamp panel, and have a uniform surface light source, so as to meet the technical requirements of a Mini-LED backlight system.
Disclosure of Invention
The invention aims to provide a glass lamp panel assembly which can meet the thickness requirement of thinning, can bear high heat of a lamp panel and has a uniform surface light source.
Another object of the present invention is to provide a method for manufacturing a glass lamp panel assembly having a uniform surface light source, which can satisfy the thickness requirement of a slim type and can withstand the high heat of the lamp panel.
In order to achieve the above purpose, the technical scheme of the invention is as follows: providing a glass lamp panel assembly, which comprises a glass cover plate, a reflecting layer, an adhesive layer and a glass lamp panel; the glass cover plate comprises a glass cover plate, wherein a first groove and a second groove are concavely arranged on one side surface of the glass cover plate, the first grooves are arranged in an array manner, the second groove is arranged at the edge position of the glass cover plate and surrounds the first groove, a first rough pattern and a second rough pattern are arranged on the other side surface of the glass cover plate, the first rough pattern is opposite to the first grooves, and the second rough pattern is arranged at a gap position between the first grooves; each reflecting layer is correspondingly arranged on the surface of the first rough pattern; the adhesive layer is formed in the second groove; be equipped with a plurality of LED lamps that are the array arrangement on the glass lamp plate, the glass lamp plate pass through the laminating glue film paste in the glass apron, and make the corresponding holding of LED lamp in the first recess.
Preferably, the projection areas of the reflective layer, the first rough pattern and the first groove are the same.
Preferably, the second coarse pattern is disposed around the first coarse pattern, and the second coarse pattern is arranged continuously or intermittently.
Preferably, the second grooves are arranged continuously or discontinuously.
Preferably, the distance between the centers of two adjacent first grooves corresponds to the distance between the centers of two adjacent LED lamps, and the outer diameter and the depth of the first grooves are respectively larger than the outer diameter and the height of the LED lamps.
Correspondingly, the invention also provides a manufacturing method of the glass lamp panel assembly, which comprises the following steps:
(1) Providing a glass cover plate, etching one side surface of the glass cover plate to form a first groove and a second groove, wherein the first groove is arranged in an array, and the second groove is formed at the edge position of the glass cover plate and surrounds the first groove;
(2) Etching the other side surface of the glass cover plate to form a first coarse pattern and a second coarse pattern, wherein the first coarse pattern is opposite to the first groove, and the second coarse pattern is arranged at a gap position between the first grooves;
(3) Silk-screen printing a white ink layer on the surface of the first rough pattern to form a reflecting layer;
(4) Filling UV glue in the second groove to obtain a laminating adhesive layer;
(5) Providing a glass lamp panel with a plurality of LED lamps arranged in an array, adhering the glass lamp panel with the glass cover plate through the adhesive layer, enabling the LED lamps to be correspondingly accommodated in the first grooves, and then carrying out UV curing on the glass cover plate and the glass lamp panel to obtain a glass lamp panel assembly.
Preferably, in the method for manufacturing a glass lamp panel assembly of the present invention, the projection areas of the reflective layer, the first rough pattern and the first groove are the same.
Preferably, in the method for manufacturing a glass lamp panel assembly of the present invention, the second rough pattern is disposed around the first rough pattern, and the second rough pattern is arranged continuously or intermittently.
Preferably, in the method for manufacturing a glass lamp panel assembly of the present invention, the second grooves are arranged continuously or intermittently.
Preferably, in the method for manufacturing a glass lamp panel assembly of the present invention, the distance between the centers of two adjacent first grooves corresponds to the distance between the centers of two adjacent LED lamps, and the outer diameter and the depth of the first grooves are respectively larger than the outer diameter and the height of the LED lamps.
Compared with the prior art, the glass lamp panel assembly has the advantages that the first grooves and the second grooves are concavely formed in one side face of the glass cover plate, the first grooves are arranged in an array mode, the second grooves are formed in the edge position of the glass cover plate and surround the first grooves, the first rough patterns and the second rough patterns are formed in the other side face of the glass cover plate, the first rough patterns are right opposite to the first grooves, the second rough patterns are arranged in the gap positions between the first grooves, the reflecting layer is arranged on the surface of the first rough patterns, the adhesive layer is formed in the second grooves, and then the LED lamp is correspondingly contained in the first grooves after the glass lamp panel is adhered to the glass cover plate. Therefore, light rays with larger light emitting angles emitted by the LED lamp can be subjected to total reflection propagation in the glass cover plate, and when the total reflected light rays meet the second coarse pattern, the total reflection is destroyed by the second coarse pattern so as to propagate above the glass cover plate; the light rays with smaller light emitting angles emitted by the LED lamp can be emitted to the rough reflecting surface formed by the first rough pattern and the reflecting layer above the LED lamp, so that the light rays are scattered back to the glass cover plate by the rough reflecting surface, and the angles of the light rays can be increased. That is, in the invention, a part of light rays can be totally reflected and transmitted in the glass cover plate, and the other part of light rays are scattered and returned to the glass cover plate, and then are reflected by the glass lamp plate and transmitted to the upper part of the glass cover plate again, so that the transmission path of the light rays in the horizontal direction is increased, and a uniform surface light source is realized; secondly, the glass cover plate and the glass lamp panel are directly bonded, so that the thickness of the glass lamp panel assembly is thinned, the thickness of the backlight system is reduced, and the thickness requirement of thinning can be met; finally, the high heat generated by the LED lamp does not affect the glass cover plate, and the glass lamp panel assembly can bear the high heat of the LED lamp. Therefore, the glass lamp panel assembly can meet the technical requirements of a Mini-LED backlight system.
Correspondingly, the glass lamp panel assembly manufacturing method also has the technical effects.
Drawings
Fig. 1 is a schematic diagram of a prior art backlight system.
Fig. 2 is a schematic diagram of a prior art Mini-LED backlight system.
Fig. 3 is a schematic view showing a state that a glass cover plate is molded into a first groove and a second groove.
Fig. 4 is a schematic view showing a state in which the glass cover plate in fig. 3 is molded with the first and second roughness patterns.
Fig. 5 is a schematic view showing a state of the glass cover plate molding reflective layer in fig. 4.
Fig. 6 is a schematic view of the glass cover plate in fig. 5 in a state of molding the adhesive layer.
Fig. 7 is a cross-sectional view of the glass lamp panel assembly of fig. 6 after the glass cover plate has been attached to the glass lamp panel.
FIG. 8 is a schematic diagram of a glass lamp panel assembly of the present invention.
Detailed Description
Embodiments of the present invention will now be described with reference to the drawings, wherein like reference numerals represent like elements throughout. It should be noted that, the description of the azimuth or the positional relationship indicated by the present invention, such as up, down, left, right, front, back, etc., is based on the azimuth or the positional relationship shown in the drawings, and is only for convenience in describing the technical solution of the present application and/or simplifying the description, and does not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. First, second, etc. are described solely for distinguishing between technical features and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.
Referring to fig. 3-7, the glass lamp panel assembly 100 provided by the present invention includes a glass cover plate 110, a glass lamp panel 120, a reflective layer 130, and an adhesive layer 140. A first groove 111 and a second groove 112 are concavely formed on one side surface of the glass cover plate 110, the first grooves 111 are arranged in an array, and the second groove 112 is arranged at the edge position of the glass cover plate 110 and surrounds the first groove 111; the other side surface of the glass cover plate 110 is provided with a first rough pattern 113 and a second rough pattern 114, the first rough pattern 113 is arranged opposite to the first groove 111, and the second rough pattern 114 is arranged at a gap position between the first grooves 111. Each of the reflective layers 130 is correspondingly disposed on the surface of the first rough pattern 113; the adhesive layer 140 is formed in the second groove 112. The glass lamp panel 120 is provided with a plurality of LED lamps 121 arranged in an array, the arrangement of the LED lamps 121 corresponds to that of the first groove 111, the glass lamp panel 120 is adhered to the glass cover plate 110 through the adhesive layer 140, and the LED lamps 121 are correspondingly accommodated in the first groove 111.
In an embodiment of the present invention, the shapes and outer diameters of the reflective layer 130, the first rough pattern 113, and the first groove 111 preferably correspond to each other, and the specific shapes of the three are not particularly limited, and may be circular, rectangular, etc. More preferably, the projection areas of the reflective layer 130, the first roughness pattern 113 and the first groove 111 are the same, specifically, the reflective layer 130, the first roughness pattern 113 and the first groove 111 are projected in a direction perpendicular to the upper and lower surfaces of the glass cover plate 110, and the obtained projection areas are the same. The upper and lower surfaces of the glass cover plate 110 are surfaces provided with grooves and roughness patterns. In this way, when the rough reflecting surface formed by the reflecting layer 130 and the first rough pattern 113 is formed on the other surface opposite to the first groove 111, and the light rays within a certain angle range emitted by the LED lamp 121 are emitted to the rough reflecting surface, the light rays are scattered back into the glass cover plate 110 by the rough reflecting surface due to the reflecting layer 130, and continue to propagate, as shown in fig. 8, after being reflected by the glass lamp plate 120, the light rays propagate above the glass cover plate 110, so that the propagation path of the light rays in the horizontal direction is increased, and a uniform surface light source can be obtained.
It can be understood that the reflective layer 130 and the first rough pattern 113 are not limited to the above embodiments, and the shape and the area of the reflective layer 130 and the first rough pattern 113 can be arbitrarily set according to the need, and the scattering range of the reflective layer 130 and the first rough pattern 113 can be adjusted by adjusting the area of the reflective layer and the first rough pattern, so as to realize a more uniform surface light source.
As shown in the following fig. 4 to 5, in the present invention, the second roughness pattern 114 is disposed around the first roughness pattern 113, and the second roughness pattern 114 is arranged continuously or intermittently. For example, in one embodiment, the second roughness pattern 114 has a shape of a continuous circular ring, square, rectangle, etc., the shape is not particularly limited herein, and the second roughness pattern 114 surrounds the first roughness pattern 113. In another embodiment, the second coarse patterns 114 are arranged intermittently, that is, the second coarse patterns 114 are formed by a plurality of coarse pattern subsections that are arranged at intervals, and after all the coarse pattern subsections are combined, the second coarse patterns 114 are in the shape of circular rings, square, rectangle, etc., and the shape is not limited in particular. For example, four sub-segments of the first roughness pattern 113 are disposed at the periphery of the first roughness pattern 113, and the four sub-segments of the roughness pattern are substantially enclosed into a rectangle, thereby enclosing the first roughness pattern 113 within a rectangular second roughness pattern 114.
Referring to fig. 8, the LED lamp 121 is accommodated in the first groove 111, light with a larger exit angle emitted by the LED lamp 121 may be totally reflected and propagated inside the glass cover plate 110, and, taking the glass cover plate 110 with an optical refractive index of 1.45 as an example, light with a light emission angle greater than 44 ° emitted by the LED lamp 121 enters the glass cover plate 110 and may be totally reflected and propagated inside the glass cover plate 110. By the arrangement of the second rough pattern 114, when the light beam totally reflected encounters the second rough pattern 114, the light beam is totally reflected by the rough surface of the second rough pattern 114 to propagate above the glass cover plate 110, so as to increase the brightness of the area between the LED lamps 121, thereby increasing the overall uniformity.
More specifically, the area of the second roughness pattern 114 may be adjusted according to the interval between the LED lamps 121 and the thickness of the glass cover plate 110, thereby changing the area of the light emitted from the second roughness pattern 114 to adjust the uniformity of the surface light source.
As shown in fig. 3 to 5, in the present invention, the first roughness pattern 113 and the second roughness pattern 114 are etched on the surface of the glass cover plate 110 by a chemical etching process, but of course, the present invention is not limited thereto and other methods are also possible. More preferably, the reflective layer 130 is formed by silk-screening a white ink layer on the first roughness pattern 113, but is not limited to the formation of the reflective layer 130 using the aforementioned materials, and may be formed using other materials as needed, without affecting the implementation of the scheme of the present invention.
As shown below in conjunction with fig. 3-7, in the present invention, the second grooves 112 are arranged continuously or intermittently. In one embodiment, a circle of second grooves 112 are concavely formed along the edge of the glass cover plate 110, and the shape of the second grooves 112 is not particularly limited. The second groove 112 is filled with UV glue, and bonds the glass cover plate 110 and the glass lamp panel 120 through the UV glue, so that a closed loop is formed, and external water vapor cannot enter the LED area, so that good sealing performance is achieved.
Of course, the second grooves 112 are arranged in a discontinuous arrangement, and the adhesion between the glass cover plate 110 and the glass lamp panel 120 can be achieved.
Referring to fig. 7, in the present invention, the spacing between the centers of two adjacent first grooves 111 corresponds to the spacing between the centers of two adjacent LED lamps 121, that is, the first grooves 111 are formed on the glass cover plate 110 according to the specific arrangement of the LED lamps 121 of the existing glass light plate 120. And, the outer diameter and depth of the first groove 111 are respectively larger than the outer diameter and height of the LED lamp 121. Thus, after the glass cover plate 110 is attached to the glass lamp panel 120, the LED lamp 121 can be accommodated in the first groove 111 without being squeezed or the like.
Referring to fig. 8, in the glass lamp panel assembly 100 of the present invention, since the LED lamp 121 is correspondingly accommodated in the first groove 111, a part of light emitted by the LED lamp 121 on the glass lamp panel 120 may be totally reflected and propagated inside the glass cover plate 110, and another part of light is scattered by the reflective layer 130 and the rough reflective surface formed by the first rough pattern 113, and then returns to the glass cover plate 110 to be propagated, and then is reflected by the glass lamp panel 120 and propagated again above the glass cover plate 110, thereby increasing the propagation path of light in the horizontal direction, and thus obtaining a uniform surface light source.
Taking the glass cover plate 110 with the optical refractive index of 1.45 as an example, light rays with the light emitting angle larger than 44 ° emitted by the LED lamps 121 will be totally reflected and propagated inside the glass cover plate 110, and when the totally reflected light rays reach the second rough pattern 114, the totally reflected light rays are destroyed by the second rough pattern 114 and propagated above the glass cover plate 110, thereby increasing the brightness of the area between the LED lamps 121. Meanwhile, when the light with the light emitting angle smaller than 44 ° propagates to the upper side of the glass cover plate 110, after encountering the rough reflecting surface formed by the first rough pattern 113 and the reflecting layer 130 above the LED lamp 121, the light can only be scattered back into the glass cover plate 110 by the first rough pattern 113 to propagate continuously due to the arrangement of the reflecting layer 130, and the light propagates to the upper side of the glass cover plate 110 after being reflected by the glass lamp plate 120, so that the propagation path of the light in the horizontal direction is increased. Therefore, the glass lamp panel assembly 100 of the present invention can obtain a more uniform surface light source by the arrangement of the first and second roughness patterns 113 and 114.
With continued reference to fig. 8, in the present invention, since the glass cover plate 110 and the glass lamp plate 120 are directly attached, there is no space therebetween, and compared with the backlight system (see fig. 1) having the space h between the diffusion plate 20 'and the lamp plate 10', the thickness of the glass lamp plate assembly 100 is greatly reduced, which is beneficial to the light and thin backlight system. Furthermore, the first and second roughness patterns 113 and 114 are disposed to achieve uniformity of the surface light source, and Polystyrene (PS) is not required to be used as a diffusion material, so that the glass cover plate 110 of the present invention is mounted in direct contact with the glass light plate 120, but does not affect the diffusion effect due to the high heat of the LED light 121, compared to the prior art in which PS is used as a diffusion material, and therefore the glass light plate assembly 100 of the present invention can bear the high heat of the LED light 121. In summary, the glass lamp panel assembly 100 of the present invention can provide a uniform surface light source, and can meet the thickness requirement of thinning, and can bear the high heat of the LED lamp 121, and can meet the technical requirement of the Mini-LED backlight system.
The method for manufacturing the glass lamp panel assembly provided by the invention is described below with reference to fig. 3-8, and comprises the following steps:
s01, providing a glass cover plate 110, etching one side surface of the glass cover plate 110 to form a first groove 111 and a second groove 112, wherein the first groove 111 is arranged in an array, and the second groove 112 is formed at the edge position of the glass cover plate 110 and surrounds the first groove 111;
referring to fig. 7, in the present invention, the distance between the centers of two adjacent first grooves 111 corresponds to the distance between the centers of two adjacent LED lamps 121, that is, the first grooves 111 may be formed on the glass cover plate 110 according to the specific arrangement of the LED lamps 121 of the existing glass light plate 120. And, the outer diameter and depth of the first groove 111 are respectively larger than the outer diameter and height of the LED lamp 121. Thus, after the glass cover plate 110 is attached to the glass lamp panel 120, the LED lamp 121 can be accommodated in the first groove 111 without being squeezed or the like.
As shown in fig. 3-7, in the present invention, the second grooves 112 are arranged continuously or intermittently. In one embodiment, a circle of second grooves 112 are concavely formed along the edge of the glass cover plate 110, and the shape of the second grooves 112 is not particularly limited. The second groove 112 is filled with UV glue, and bonds the glass cover plate 110 and the glass lamp panel 120 through the UV glue, so that a closed loop is formed, and external water vapor cannot enter the LED area, so that good sealing performance is achieved.
Of course, the second grooves 112 are arranged in a discontinuous arrangement, and the adhesion between the glass cover plate 110 and the glass lamp panel 120 can be achieved.
In one embodiment of the present invention, the first and second grooves 111 and 112 may be formed on the glass cover plate 110 by masking and then etching, but not limited thereto, and may be formed in other ways.
S02, etching the other side surface of the glass cover plate 110 to form a first rough pattern 113 and a second rough pattern 114, wherein the first rough pattern 113 is arranged opposite to the first groove 111, and the second rough pattern 114 is arranged at a gap position between the first grooves 111;
in an embodiment of the present invention, the shapes and the outer diameters of the first roughness pattern 113 and the first groove 111 preferably correspond to each other, and the specific shapes of the first roughness pattern and the first groove are not particularly limited, and may be circular, rectangular, etc., as shown in fig. 3-5 and 8.
More preferably, the projection areas of the first roughness pattern 113 and the first groove 111 are the same, specifically, the projection areas of the first roughness pattern 113 and the first groove 111 are the same when the first roughness pattern 113 and the first groove 111 are projected along the direction perpendicular to the upper and lower surfaces of the glass cover plate 110. The upper and lower surfaces of the glass cover plate 110 are surfaces provided with grooves and roughness patterns.
It is to be understood that the first roughness pattern 113 is not limited to the arrangement manner in the above embodiment, and may be arbitrarily arranged in shape and area according to need, and the scattering range of the first roughness pattern 113 is adjusted by adjusting the area of the first roughness pattern 113, thereby realizing a more uniform surface light source, as will be described later.
As shown in fig. 4-5 and 8, in the present invention, the second coarse pattern 114 is disposed around the first coarse pattern 113, and the second coarse pattern 114 is arranged continuously or intermittently. For example, in one embodiment, the second roughness pattern 114 has a shape of a continuous circular ring, square, rectangle, etc., the shape is not particularly limited herein, and the second roughness pattern 114 surrounds the first roughness pattern 113. In another embodiment, the second coarse patterns 114 are arranged intermittently, that is, the second coarse patterns 114 are formed by a plurality of coarse pattern subsections that are arranged at intervals, and after all the coarse pattern subsections are combined, the second coarse patterns 114 are in the shape of circular rings, square, rectangle, etc., and the shape is not limited in particular. For example, four sub-segments of the first roughness pattern 113 are disposed at the periphery of the first roughness pattern 113, and the four sub-segments of the roughness pattern are substantially enclosed into a rectangle, thereby enclosing the first roughness pattern 113 within a rectangular second roughness pattern 114. The rough surface of the second rough pattern 11 can destroy the total reflection of the light in the glass cover plate 110, so that the light propagates above the glass cover plate 110, and the brightness of the area between the LED lamps 121 can be increased, thereby increasing the overall uniformity, as will be described in detail below.
Referring to fig. 7 to 8, more specifically, the area of the second roughness pattern 114 may be adjusted according to the interval between the LED lamps 121 and the thickness of the glass cover plate 110, thereby changing the area of the light emitted from the second roughness pattern 114 to adjust the uniformity of the surface light source.
Referring again to fig. 3 to 5, in the present invention, the first roughness pattern 113 and the second roughness pattern 114 are etched on the surface of the glass cover plate 110 by a chemical etching process, but of course, the present invention is not limited thereto and other methods are also possible.
S03, silk-screen printing a white ink layer on the surface of the first rough pattern 113 to form a reflecting layer 130;
as shown in fig. 3-5 and fig. 7-8, in the present invention, the reflective layer 130 is formed on the surface of the first roughness pattern 113, and thus, the shape and area of the reflective layer and the reflective layer are the same. In a more preferred embodiment, the projection areas of the reflective layer 130, the first roughness pattern 113 and the first groove 111 are the same, specifically, the projection areas of the reflective layer 130, the first roughness pattern 113 and the first groove 111 are the same when projected in a direction perpendicular to the upper and lower surfaces of the glass cover plate 110. In this way, when the rough reflecting surface formed by the reflecting layer 130 and the first rough pattern 113 is formed on the other surface opposite to the first groove 111, and the light rays within a certain angle range emitted by the LED lamp 121 are emitted to the rough reflecting surface, the light rays are scattered back into the glass cover plate 110 by the rough reflecting surface due to the reflecting layer 130, and continue to propagate, as shown in fig. 8, after being reflected by the glass lamp plate 120, the light rays propagate above the glass cover plate 110, so that the propagation path of the light rays in the horizontal direction is increased, and a uniform surface light source can be obtained.
It is understood that the reflective layer 130 is not limited to the foregoing materials for forming the reflective layer 130, and that other materials may be used for forming the reflective layer as desired, without affecting implementation of the inventive arrangements.
S04, filling UV glue in the second groove 112 to obtain a laminating adhesive layer 140;
s05, providing a glass lamp panel 120 with a plurality of LED lamps 121 arranged in an array, adhering the glass lamp panel 120 and the glass cover plate 110 together through the adhesive layer 140, correspondingly accommodating the LED lamps 121 in the first grooves 111, and then carrying out UV curing on the glass cover plate 110 and the glass lamp panel 120 to obtain the glass lamp panel assembly 100.
Referring to fig. 7-8, after the glass cover plate 110 and the glass lamp plate 120 are attached, since the LED lamp 121 is correspondingly accommodated in the first groove 111, a part of light emitted by the LED lamp 121 may be totally reflected and propagated in the glass cover plate 110, and another part of light is scattered by the rough reflective surface formed by the reflective layer 130 and the first rough pattern 113 and then returns to the glass cover plate 110 to be propagated, and then is reflected by the glass lamp plate 120 and propagated above the glass cover plate 110 again, thereby increasing the propagation path of the light in the horizontal direction, and thus a uniform surface light source can be obtained.
Taking the glass cover plate 110 with the optical refractive index of 1.45 as an example, light rays with the light emitting angle larger than 44 ° emitted by the LED lamps 121 will be totally reflected and propagated inside the glass cover plate 110, and when the totally reflected light rays reach the second rough pattern 114, the totally reflected light rays are destroyed by the second rough pattern 114 and propagated above the glass cover plate 110, thereby increasing the brightness of the area between the LED lamps 121. Meanwhile, when the light with the light emitting angle smaller than 44 ° propagates to the upper side of the glass cover plate 110, after encountering the rough reflecting surface formed by the first rough pattern 113 and the reflecting layer 130 above the LED lamp 121, the light can only be scattered back into the glass cover plate 110 by the first rough pattern 113 to propagate continuously due to the arrangement of the reflecting layer 130, and the light propagates to the upper side of the glass cover plate 110 after being reflected by the glass lamp plate 120, so that the propagation path of the light in the horizontal direction is increased. Therefore, the glass lamp panel assembly 100 of the present invention can obtain a more uniform surface light source by the arrangement of the first and second roughness patterns 113 and 114.
7-8, in the present invention, since the glass cover plate 110 is directly attached to the glass lamp plate 120, there is no space between the two, and compared with the backlight system (see FIG. 1) having a space h between 20 'and 10', the thickness of the glass lamp plate assembly 100 is greatly reduced, which is beneficial to the light and thin backlight system. Furthermore, the first and second rough patterns 113 and 114 are arranged to achieve uniformity of the surface light source, and Polystyrene (PS) is not required to be used as a diffusion material, so that the glass cover plate 110 of the present invention is mounted in direct contact with the glass light plate 120, but does not affect the diffusion effect due to the high heat of the LED light 121, compared with the prior art in which PS is used as a diffusion material, so that the glass light plate assembly 100 of the present invention can bear the high heat of the LED light 121, and can meet the technical requirements of the Mini-LED backlight system.
In summary, in the glass lamp panel assembly 100 of the present invention, a first groove 111 and a second groove 112 are concavely disposed on one side surface of the glass cover plate 110, the first groove 111 is arranged in an array, the second groove 112 is disposed at an edge position of the glass cover plate 110 and surrounds the first groove 111, a first rough pattern 113 and a second rough pattern 114 are disposed on the other side surface of the glass cover plate 110, the first rough pattern 113 is opposite to the first groove 111, the second rough pattern 114 is disposed at a gap position between the first grooves 111, a reflective layer 130 is disposed on a surface of the first rough pattern 113, and a bonding adhesive layer 140 is formed in the second groove 112; after the glass lamp plate 120 is adhered to the glass cover plate 110, the LED lamp 121 is correspondingly accommodated in the first groove 111. Therefore, the light emitted by the LED lamp 121 with a larger light emitting angle can be totally reflected and propagated inside the glass cover plate 110, and when the totally reflected light encounters the second coarse pattern 114, the total reflection is destroyed by the second coarse pattern 114 and propagated above the glass cover plate 110; the light emitted by the LED lamp 121 with a smaller light emitting angle will exit to the rough reflective surface formed by the first rough pattern 113 and the reflective layer 130 above the LED lamp 121, so that the light is scattered back to the glass cover plate 110 by the rough reflective surface, and the angle of the light is increased. That is, in the present invention, a part of light is totally reflected and transmitted in the glass cover plate 110, and another part of light is scattered and returned to the glass cover plate 110, and then is transmitted to the upper side of the glass cover plate 110 again after being reflected by the glass lamp plate 120, so that the transmission path of the light in the horizontal direction is increased, thereby realizing a uniform surface light source; secondly, the glass cover plate 110 and the glass lamp panel 120 are directly bonded, so that the thickness of the glass lamp panel assembly 100 is thinned, the thickness of a backlight system is reduced, and the thickness requirement of thinning can be met; finally, the high heat generated by the LED lamp 121 does not affect the glass cover plate 110, and the glass lamp panel assembly 100 can withstand the high heat of the LED lamp 121. Therefore, the glass lamp panel assembly 100 of the present invention can meet the technical requirements of Mini-LED backlight systems.
Correspondingly, the method for manufacturing the glass lamp panel assembly 100 also has the technical effects.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the scope of the claims, which follow, as defined in the claims.
Claims (10)
1. A glass lamp panel assembly, comprising:
the glass cover plate is characterized in that a first groove and a second groove are concavely formed in one side face of the glass cover plate, the first grooves are arranged in an array mode, the second groove is formed in the edge position of the glass cover plate and surrounds the first groove, a first coarse pattern and a second coarse pattern are formed in the other side face of the glass cover plate, the first coarse pattern faces the first grooves, and the second coarse pattern is arranged in a gap position between the first grooves;
the reflection layers are arranged on the surface of the first rough pattern;
the adhesive layer is formed in the second groove;
the glass lamp panel is provided with a plurality of LED lamps which are arranged in an array, and the glass lamp panel is adhered to the glass cover plate through the adhesive layer, and the LED lamps are correspondingly accommodated in the first grooves.
2. The glass lamp panel assembly of claim 1, wherein the reflective layer, the first roughened pattern, and the first recess have the same projected area.
3. The glass lamp panel assembly of claim 1, wherein the second rough pattern is disposed around the first rough pattern and the second rough pattern is in a continuous arrangement or an intermittent arrangement.
4. The glass lamp panel assembly of claim 1, wherein the second grooves are in a continuous arrangement or an intermittent arrangement.
5. The glass lamp panel assembly according to claim 1, wherein the distance between the centers of two adjacent first grooves corresponds to the distance between the centers of two adjacent LED lamps, and the outer diameter and the depth of the first grooves are respectively larger than the outer diameter and the height of the LED lamps.
6. A method of manufacturing a glass lamp panel assembly, comprising the steps of:
(1) Providing a glass cover plate, etching one side surface of the glass cover plate to form a first groove and a second groove, wherein the first groove is arranged in an array, and the second groove is formed at the edge position of the glass cover plate and surrounds the first groove;
(2) Etching the other side surface of the glass cover plate to form a first coarse pattern and a second coarse pattern, wherein the first coarse pattern is opposite to the first groove, and the second coarse pattern is arranged at a gap position between the first grooves;
(3) Silk-screen printing a white ink layer on the surface of the first rough pattern to form a reflecting layer;
(4) Filling UV glue in the second groove to obtain a laminating adhesive layer;
(5) Providing a glass lamp panel with a plurality of LED lamps arranged in an array, adhering the glass lamp panel with the glass cover plate through the adhesive layer, enabling the LED lamps to be correspondingly accommodated in the first grooves, and then carrying out UV curing on the glass cover plate and the glass lamp panel to obtain a glass lamp panel assembly.
7. The method of manufacturing a glass lamp panel assembly according to claim 6, wherein the reflective layer, the first roughness pattern, and the first grooves have the same projected area.
8. The method of manufacturing a glass lamp panel assembly according to claim 6, wherein the second rough pattern is disposed around the first rough pattern, and the second rough pattern is arranged continuously or intermittently.
9. The method of manufacturing a glass lamp panel assembly according to claim 6, wherein the second grooves are arranged continuously or intermittently.
10. The method of manufacturing a glass lamp panel assembly according to claim 6, wherein the distance between the centers of two adjacent first grooves corresponds to the distance between the centers of two adjacent LED lamps, and the outer diameter and the depth of the first grooves are larger than the outer diameter and the height of the LED lamps, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310374239.4A CN116381986A (en) | 2023-04-04 | 2023-04-04 | Glass lamp panel assembly and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310374239.4A CN116381986A (en) | 2023-04-04 | 2023-04-04 | Glass lamp panel assembly and method of manufacturing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116381986A true CN116381986A (en) | 2023-07-04 |
Family
ID=86967216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310374239.4A Pending CN116381986A (en) | 2023-04-04 | 2023-04-04 | Glass lamp panel assembly and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116381986A (en) |
-
2023
- 2023-04-04 CN CN202310374239.4A patent/CN116381986A/en active Pending
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