Glass lamp panel assembly and its manufacturing method
The glass-based lamp assembly addresses thinness and heat resistance issues in Mini-LED backlights by using reflective structures to enhance light efficiency and uniformity, overcoming the limitations of conventional diffusers.
Patent Information
- Application Number
- CN202310610118.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-26
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2043-05-26
AI Technical Summary
The existing polystyrene diffusion plates are difficult to meet the thinning requirements and high heat compatibility in Mini-LED backlight systems, resulting in a reduced scattering effect and unable to provide a uniform surface light source.
A glass lamp panel assembly is adopted, including a glass cover plate and a glass lamp panel. By setting a reflective ink layer and an adhesive body on the glass cover plate, the LED lamp is embedded in the glass cover plate using the adhesive body and adhesive tape to realize the reflection and propagation of light, and combining the optical diffusion plate and the optical diaphragm to form a uniform surface light source.
A thinner backlight surface light source is achieved, which improves luminous efficiency and uniformity, and can withstand high heat and meets the technical needs of Mini-LED backlight systems.
Smart Images

Figure CN116609972B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of liquid crystal display backlight systems, and particularly to a glass lamp board assembly that can meet the thickness requirements of thinning and withstand the high heat of the lamp board, and a manufacturing method thereof. Background Art
[0002] In a liquid crystal display (LCD), a backlight system is required to provide a uniform surface light source. The commonly used solutions in the current backlight system are as Figure 1 shown. An LED light source 10` and a lens are placed at the bottom, and then a diffusion plate 20` is placed at a height position of distance h. The light of multiple LED light sources is converted into a uniform surface light source through the diffusion plate 20`.
[0003] With the development of LCD technology, in order to pursue thinning and dynamic backlight technology, Mini-LED technology has emerged in recent years. The LCD system with Mini-LED technology is as Figure 2 shown. Its bottom is a Mini-LED light board 10` (Light Board). The Mini-LEDs on it are blue LEDs with very small sizes, usually between 100 and 500 micrometers. There are thousands of blue LEDs (Blue Chip) on a Mini-LED light board 10`. And at a certain distance (optical distance, abbreviated as OD) from the Mini-LED light board 10`, a diffusion plate 20` is placed to convert the dot matrix blue light emitted by thousands of Mini-LEDs into a uniform surface light source. Above the diffusion plate 20`, an OD film 30`, an optical film 40`, and an LCD module 50` are sequentially arranged. Usually, in order to pursue thinning, it is required that OD = 0, that is, the diffusion plate 20` is directly placed on the surface of the Mini-LED light board, and at the same time, the thickness of the diffusion plate 20` is required to be as thin as possible.
[0004] However, the commonly used diffusion plate material is polystyrene (abbreviated as PS). The PS material is a polymer optical material with light diffusion properties. The working principle of the PS diffusion plate is that it contains many diffusion particles inside. When light enters the diffusion plate, the diffusion particles scatter the light. When the thickness of the diffusion plate 20` is thinned, the scattering effect will be reduced, and it is not easy to form a uniform surface light source. And a lot of heat is generated when the lamp board 10` emits light. In the Mini-LED technology, when the diffusion plate 20` is directly placed on the surface of the lamp board 10`, the temperature of the diffusion plate 20` will become high after absorbing heat, but the PS material is an organic material and cannot withstand a high temperature. Therefore, due to the requirements of thinning and the influence of temperature, the existing PS diffusion plates cannot meet the technical requirements of the Mini-LED backlight system.
[0005] Therefore, it is necessary to provide a glass lamp panel assembly that can not only meet the thickness requirements of thinning but also withstand the high heat of the lamp panel to meet the technical requirements of the Mini-LED backlight system. Summary of the Invention
[0006] An object of the present invention is to provide a glass lamp panel assembly that can not only meet the thickness requirements of thinning but also withstand the high heat of the lamp panel.
[0007] Another object of the present invention is to provide a manufacturing method for a glass lamp panel assembly that can not only meet the thickness requirements of thinning but also withstand the high heat of the lamp panel.
[0008] To achieve the above object, the technical solution of the present invention is: to provide a glass lamp panel assembly, which includes a glass lamp panel and a glass cover plate; a plurality of LED lamps arranged in an array are provided on one side surface of the glass lamp panel; a first reflective ink layer is provided on the first side surface of the glass cover plate, and a first opening window is provided on the first reflective ink layer in an array, a second reflective ink layer is provided on the second side surface corresponding to the position of the first opening window, a second opening window is provided on the second reflective ink layer, and the outer diameter of the second reflective ink layer is greater than the outer diameter of the first opening window, and the inner diameter of the second opening window is smaller than the inner diameter of the first opening window; and, a bonding body is provided in the first opening window of the glass cover plate, and the bonding body protrudes from the first reflective ink layer; a bonding band is provided in the area between the first opening windows of the glass cover plate, and the bonding band is bonded to the first reflective ink layer; the glass lamp panel is bonded to the first side surface of the glass cover plate through the bonding body, and each LED lamp is correspondingly embedded in one of the bonding bodies.
[0009] Preferably, the bonding body is disposed opposite to the second opening window, and the outer diameter of the bonding body is greater than the outer diameter of the second opening window.
[0010] Preferably, the bottom surface of the bonding body is bonded to the first side surface, and the surface of the bonding body gradually narrows from the first side surface in a direction away from the first side surface and has an arc-shaped structure. Such a structural setting enables the light emitted by the LED lamp buckled on the surface of the bonding body and embedded therein to be reflected by the bonding body as much as possible and then enter the glass cover plate for propagation and diffusion, thereby improving the light emission efficiency and reducing the power consumption.
[0011] Preferably, the bonding body has a spherical or bowl-shaped structure. The spherical or bowl-shaped bonding body can reflect the light emitted by the LED lamp as much as possible and then enter the glass cover plate, thereby improving the light emission efficiency and reducing the power consumption.
[0012] Preferably, the glass lamp panel assembly further includes a bonding tape, which is disposed in the area between the first openings and bonded to the first reflective ink layer and the glass lamp panel, and the bonding tape is used to strengthen the bond between the glass cover plate and the glass lamp panel.
[0013] Preferably, the thickness of the bonding tape is greater than the thickness of the LED lamp.
[0014] Correspondingly, the present invention also provides a method for manufacturing a glass lamp panel assembly, which includes the following steps:
[0015] (1) Provide a glass cover plate, screen-print reflective ink on the first side of the glass cover plate to obtain a first reflective ink layer, and the first reflective ink layer is provided with first openings arranged in an array;
[0016] (2) Screen-print reflective ink on the second side of the glass cover plate corresponding to the position of the first openings to obtain a second reflective ink layer, the second reflective ink layer is provided with second openings, and the outer diameter of the second reflective ink layer is greater than the outer diameter of the first openings, and the aperture of the second openings is smaller than the aperture of the first openings;
[0017] (3) Drop glue in sequence at the positions within the first openings on the first side of the glass cover plate, so as to form a bonding body within the first openings;
[0018] (4) Provide a glass lamp panel, make the LED lamps thereon face the bonding body and align them one by one, buckle the glass lamp panel on the glass cover plate, and make the LED lamps correspondingly embedded in the bonding body, so that the glass lamp panel and the glass cover plate are bonded through the bonding tape and the bonding body.
[0019] Preferably, in the method for manufacturing a glass lamp panel assembly of the present invention, the bonding body is disposed opposite to the second openings, and the outer diameter of the bonding body is greater than the outer diameter of the second openings.
[0020] Preferably, in the method for manufacturing a glass lamp panel assembly of the present invention, the bottom surface of the bonding body is bonded to the first side, and the surface of the bonding body gradually narrows from the first side towards a direction away from the first side and has an arc-shaped structure. Such a structural setting enables the light emitted by the LED lamps buckled on the surface of the bonding body and embedded therein to be reflected by the bonding body as much as possible and then enter the glass cover plate for propagation and diffusion, thereby improving the light-emitting efficiency and reducing power consumption.
[0021] Preferably, in the method for manufacturing a glass lamp panel assembly of the present invention, the bonding body has a spherical or bowl-shaped structure. The spherical or bowl-shaped bonding body can reflect the light emitted by the LED lamps as much as possible and then enter the glass cover plate, thereby improving the light-emitting efficiency and reducing power consumption.
[0022] Preferably, in the manufacturing method of the glass lamp board assembly of the present invention, the bottom surface of the bonding body is bonded to the first side surface, and the surface of the bonding body gradually narrows from the first side surface in a direction away from the first side surface and has an arc-shaped structure.
[0023] Preferably, in the manufacturing method of the glass lamp board assembly of the present invention, before the step (3), the following steps are further included:
[0024] Provide a bonding tape, and paste the bonding tape on the area between the first openings on the first reflective ink layer, and the bonding tape is used to strengthen the bonding between the glass cover plate and the glass lamp board.
[0025] Preferably, in the manufacturing method of the glass lamp board assembly of the present invention, the thickness of the bonding tape is greater than the thickness of the LED lamp.
[0026] Compared with the prior art, due to the glass lamp board assembly of the present invention, a first reflective ink layer is provided on the first side surface of the glass cover plate, and a first array of openings arranged in an array is provided on the first reflective ink layer. A second reflective ink layer is provided at a position corresponding to the first opening on the second side surface, a second opening is provided on the second reflective ink layer, and the outer diameter of the second reflective ink layer is greater than the outer diameter of the first opening, and the inner diameter of the second opening is smaller than the inner diameter of the first opening; at the same time, a bonding body is arranged in the first opening, and a bonding tape is arranged in the area between the first openings; then the glass lamp board and the glass cover plate are bonded through the bonding body and the bonding tape, and each LED lamp is correspondingly embedded in a bonding body. Therefore, the bonding body can make the light emitted by the LED lamp be reflected as much as possible into the glass cover plate, thereby improving the light-emitting efficiency and reducing the power consumption; and the second reflective ink layer on the second side surface of the glass cover plate can reflect most of the light emitted by the LED lamp back into the glass cover plate for internal propagation and diffusion, thereby improving the uniformity of light emission. After the glass lamp board assembly of the present invention is combined with an optical diffusion plate and an optical film, it can provide a uniform surface light source, achieve a thin backlight surface light source, and at the same time the high heat of the LED lamp will not affect the optical diffusion plate, so that the glass lamp board assembly of the present invention can meet the technical requirements of the Mini-LED backlight system.
[0027] Correspondingly, the manufacturing method of the glass lamp board assembly provided by the present invention also has the above technical effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 is a schematic structural diagram of a backlight system in the prior art.
[0029] Figure 2 is a schematic structural diagram of a backlight system with Mini-LEDs in the prior art.
[0030] Figure 3 It is a cross-sectional view of the first and second reflective ink layers formed on the glass cover plate in the present invention.
[0031] Figure 4 It is Figure 3 a cross-sectional view of the glass cover plate with the adhesive tape bonded thereto in
[0032] Figure 5 It is Figure 4 a cross-sectional view of the adhesive body formed on the glass cover plate in
[0033] Figure 6 It is Figure 5 a cross-sectional view of the glass lamp panel assembly obtained by bonding the glass cover plate and the glass lamp panel in
[0034] Figure 7 It is a schematic diagram of the optical path principle of the glass lamp panel assembly of the present invention Detailed implementation manners
[0035] Now, embodiments of the present invention will be described with reference to the accompanying drawings, in which like reference numerals represent like elements. It should be noted that the orientation descriptions involved in the present invention, such as up, down, left, right, front, rear, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the technical solutions of the present application or / and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. The first, second, etc. described are only used to distinguish technical features, and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.
[0036] First, in combination with Figures 3 - 6 as shown, the glass lamp panel assembly 100 provided by the present invention includes a glass lamp panel 110 and a glass cover plate 120. Among them, a plurality of LED lamps 111 arranged in an array are provided on one side surface of the glass lamp panel 110, and the arrangement manner of the LED lamps 111 is a conventional manner in the art and will not be described in detail.
[0037] In the present invention, the glass cover plate 120 has opposite first and second sides. A first reflective ink layer 121 is provided on the first side of the glass cover plate 120. An array of first openings 1211 is provided on the first reflective ink layer 121. A second reflective ink layer 122 is provided on the second side of the glass cover plate 120 at a position corresponding to the first openings 1211. A second opening 1221 is provided on the second reflective ink layer 122. Moreover, the outer diameter of the second reflective ink layer 122 is larger than the outer diameter of the first openings 1211, and the inner diameter of the second opening 1221 is smaller than the inner diameter of the first openings 1211.
[0038] In the present invention, an adhesive body 130 is further provided within the first openings 1211 of the glass cover plate 120. The adhesive body 130 is spaced apart from the first reflective ink layer 121 and protrudes from the first reflective ink layer 121. More specifically, the bottom surface of the adhesive body 130 is bonded to the first side 121 of the glass cover plate 120, and the surface of the adhesive body 130 gradually narrows from the first side 121 in a direction away from the first side 121 and has an arc-shaped structure. Meanwhile, an adhesive strip 140 is further provided in the region between the first openings 1211 of the glass cover plate 120, and the adhesive strip 140 is bonded to the first reflective ink layer 121.
[0039] When the glass lamp board 110 and the glass cover plate 120 are bonded together, the glass lamp board 110 is correspondingly disposed above the first side 121 of the glass cover plate 120, and each LED lamp 111 corresponds to one of the adhesive bodies 130. Then, the glass lamp board 110 is snapped onto the glass cover plate 120, and the two are bonded through the adhesive bodies 130 and the adhesive strip 140, and each LED lamp 111 correspondingly extends into one of the adhesive bodies 130.
[0040] As shown in Figure 3 、 Figure 7 In an embodiment of the present invention, the centers of the second openings 1221 and the first openings 1211 are vertically corresponding, and their shapes are not specifically limited. Moreover, the aperture of the second openings 1221 is smaller than the aperture of the first openings 1211. In this way, a small part of the light that enters the glass cover plate 120 after being reflected by the adhesive body 130 can directly pass through the glass cover plate 120 and the second openings 1221 and then exit; while the outer diameter of the second reflective ink layer 122 is larger than the outer diameter of the first openings 1211. In this way, most of the light that enters the glass cover plate 120 after being reflected by the adhesive body 130 can be reflected back into the glass cover plate 120 by the second reflective ink layer 122, so that most of the light propagates and diffuses inside the glass cover plate 120, improving the uniformity of light emission.
[0041] As shown in Figures 4 - 5 、 Figure 7As shown, in an embodiment of the present invention, the bonding body 130 is disposed opposite to the second opening 1221, and the outer diameter of the bonding body 130 is greater than the outer diameter of the second opening 1221. Specifically, glue is dropped successively at positions within the first opening 1211 of the glass cover plate 120. Under the action of its own gravity and surface tension, the glue will form a spherical bonding body 130 on the glass cover plate 120. That is to say, the bottom surface of the bonding body 130 is bonded to the first side surface of the glass cover plate 120, and the surface of the bonding body 130 is a spherical structure, as Figure 5 shown, such that the surface of the bonding body 130 gradually narrows from the first side surface 121 in a direction away from the first side surface 121. Such a structure enables most of the light emitted by the LED lamp 111 located inside the bonding body 130 to be reflected back into the glass cover plate 120, as Figure 7 shown, details of which will be described later.
[0042] Combined with Figures 4 - 6 shown, more preferably, the height of the bonding body 130 is substantially the same as the thickness of the bonding tape 140. The purpose of this is to ensure that the glass lamp board 110 and the glass cover plate 120 can be bonded through the bonding body 130 and the bonding tape 140, while avoiding the bonding body 130 being pressed too flat by the glass cover plate 120, details of which will be described later. In the present invention, the glue can be selected as a high refractive index one such as epoxy resin, or it can also be silicone, which is not specifically limited herein. By using a high refractive index glue to form the bonding body 130 to bond the glass lamp board 110 and the glass cover plate 120, the external quantum efficiency of the LED lamp 111 is improved, and the light loss at the glass-air interface is avoided, thereby improving the luminous efficiency of the LED lamp 111.
[0043] As follows, combined with Figures 4 - 6 shown, in an embodiment of the present invention, the bonding tape 140 is preferably a double-sided tape, but is not limited thereto, and other bonding strips can also be used for bonding. And, the thickness of the bonding tape 140 is greater than the thickness of the LED lamp 111. For example, if the thickness of the LED lamp 111 is between 0.1 - 0.15 mm, then the thickness of the bonding tape 140 is preferably 0.3 mm, so as to ensure that the glass lamp board 110 and the glass cover plate 120 can be stably bonded, and the LED lamp 111 can be embedded in the bonding body 130 without being extruded.
[0044] Combined with Figures 6 - 7As shown, in the present invention, when the glass lamp panel 110 is bonded to the glass cover plate 120, the glass lamp panel 110 is buckled downward on the first side surface of the glass cover plate 120, and the positions of the LED lamps 111 are made to correspond one by one to the bonding bodies 130, so as to ensure that each LED lamp 111 is embedded in the corresponding spherical bonding body 130. At this time, the spherical bonding body 130 forms an inverted bowl-shaped under the pressing of the glass cover plate 120. Specifically, the bowl mouth position of the bonding body 130 is bonded to the glass cover plate 120, and its bowl bottom position is connected to the glass lamp panel 110, as Figure 6 shown. At the same time, the glass lamp panel 110 and the glass cover plate 120 are also bonded through a bonding tape 140. Then the glue is cured at high temperature, so that the glass lamp panel 110 and the glass cover plate 120 are bonded together by the bonding bodies 130 and the bonding tape 140. The bowl-shaped bonding body 130 enables the large-angle light emitted by the LED lamp 111 to be reflected and then enter the glass cover plate 120, improving the light utilization rate, as Figure 7 shown.
[0045] Of course, the bonding body 130 is not limited to the bowl shape, and forming a spherical shape can also reflect the large-angle light emitted by the LED lamp 111 and then enter the glass cover plate 120.
[0046] Next, in conjunction with Figures 3 - 7 shown, in the present invention, the glass lamp panel assembly 100, the optical diffuser plate 200, and the optical film 300 can be combined to obtain a backlight module. Specifically, referring to Figure 7 shown, the optical diffuser plate 200 is disposed on the second side surface of the glass cover plate 120, and then the optical film 300 is disposed above the optical diffuser plate 200, thereby obtaining a backlight module. Among them, the setting methods of the optical diffuser plate 200 and the optical film 300 are conventional technologies well known to those skilled in the art, and will not be described in detail here.
[0047] Next, referring to Figure 7 shown, for the glass lamp panel assembly 100 of the present invention, when the LED lamp 111 emits light, the bowl-shaped bonding body 130 reflects the large-angle light emitted by the LED lamp 111 and then enters the glass cover plate 120, improving the light utilization rate; and the second reflective ink layer 122 on the second side surface of the glass cover plate 120 can reflect most of the light emitted by the LED lamp 111 passing through the glass cover plate 120 back into the interior of the glass cover plate 120 for propagation and diffusion, improving the light utilization rate and the uniformity of light emission. The glass lamp panel assembly 100 of the present invention is combined with the optical diffuser plate 200 and the optical film 300, can provide a uniform surface light source, and further achieve a thin backlight surface light source. At the same time, the high heat of the LED lamp 111 will not affect the optical diffuser plate 200, and the manufacturing process of the glass lamp panel assembly 100 of the present invention is simple and the cost is low.
[0048] Next, in combination with Figures 3 - 7 shown below, the manufacturing method of the glass lamp panel assembly provided by the present invention will be described. The manufacturing method of the glass lamp panel assembly includes the following steps:
[0049] S01. Provide a glass cover plate 120, screen-print a reflective ink on the first side of the glass cover plate 120 to obtain a first reflective ink layer 121, and a first opening 1211 arranged in an array is provided on the first reflective ink layer 121;
[0050] Refer to Figure 3 shown below. In an embodiment of the present invention, the arrangement mode of the first openings 1211 corresponds to the arrangement mode of the LED lamps 111 on the glass lamp panel 110, and the arrangement mode of the glass lamp panel 110 and the LED lamps 111 thereon is a conventional setting mode in the art.
[0051] Meanwhile, the inner diameter of the first opening 1211 is relatively large, and its inner diameter is large enough to accommodate the bonding body 130 for the LED lamp 111.
[0052] S02. Screen-print a reflective ink on the second side of the glass cover plate 120 at a position corresponding to the first opening 1211 to obtain a second reflective ink layer 122. A second opening 1221 is provided on the second reflective ink layer 122, and the outer diameter of the second reflective ink layer 122 is larger than the outer diameter of the first opening 1211, and the aperture of the second opening 1221 is smaller than the aperture of the first opening 1211;
[0053] In combination with Figure 3 , Figure 7 shown below. In an embodiment of the present invention, the centers of the second opening 1221 and the first opening 1211 are arranged vertically corresponding to each other, and their shapes are not specifically limited. And, the aperture of the second opening 1221 is smaller than the aperture of the first opening 1211, so that a small part of the light that enters the glass cover plate 120 after being reflected by the bonding body 130 can directly pass through the glass cover plate 120 and the second opening 1221 and then exit; while the outer diameter of the second reflective ink layer 122 is larger than the outer diameter of the first opening 1211, so that most of the light that enters the glass cover plate 120 after being reflected by the bonding body 130 can be reflected back into the glass cover plate 120 by the second reflective ink layer 122, so that most of the light propagates and diffuses inside the glass cover plate 120, improving the uniformity of light emission.
[0054] S03. Provide a bonding tape 140, and paste the bonding tape 140 on the area between the first openings 1211 on the first reflective ink layer 121;
[0055] In combination with Figures 4 - 6As shown, in an embodiment of the present invention, first, the first side of the glass cover plate 120 is turned upwards, and then the bonding tape 140 is pasted in the area between the first openings 1211. Through the longitudinally and transversely arranged bonding tapes 140, a plurality of areas arranged in an array are separated on the glass cover plate 120, and the first openings 1211 are located in each area. Of course, the bonding tape 140 is not limited to this setting method, as long as it is arranged in the area between the first openings 1211 and can bond the glass cover plate 120 and the glass lamp board 110.
[0056] In the present invention, the bonding tape 140 is preferably a double-sided tape, but is not limited thereto, and other bonding strips can also be used for bonding. Moreover, the thickness of the bonding tape 140 is greater than the thickness of the LED lamp 111. For example, if the thickness of the LED lamp 111 is between 0.1 - 0.15 mm, the thickness of the bonding tape 140 is preferably 0.3 mm, so as to ensure that the glass lamp board 110 and the glass cover plate 120 can be stably bonded, and the LED lamp 111 can be embedded in the bonding body 130 without being squeezed.
[0057] S04. Glue is dripped in sequence at positions within the first openings 1211 on the first side of the glass cover plate 120, so as to form a bonding body 130 within the first openings 1211;
[0058] Combined Figures 5 - 7 As shown, in an embodiment of the present invention, the bonding body 130 is arranged opposite to the second opening 1221, and the outer diameter of the bonding body 130 is greater than the outer diameter of the second opening 1221. Specifically, glue is dripped in sequence at positions within the first openings 1211 of the glass cover plate 120. Under the action of its own gravity and surface tension, the glue will form a spherical bonding body 130 on the glass cover plate 120. That is to say, the bottom surface of the bonding body 130 is bonded to the first side of the glass cover plate 120, and the surface of the bonding body 130 is of a spherical structure, as Figure 5 shown, such that the surface of the bonding body 130 shows a gradually narrowing trend from the first side 121 towards a direction away from the first side 121. Such a structure enables most of the light emitted by the LED lamp 111 located inside the bonding body 130 to be reflected back into the glass cover plate 120, as Figure 7 shown, as will be described in detail later.
[0059] Combined Figures 4 - 6As shown, more preferably, the height of the bonding body 130 is substantially the same as the thickness of the bonding tape 140. The purpose is to ensure that the glass lamp panel 110 and the glass cover plate 120 can be bonded through the bonding body 130 and the bonding tape 140, and at the same time, to prevent the bonding body 130 from being overly flattened by the glass cover plate 120, as will be described later. In the present invention, the glue can be selected as one with a high refractive index, such as epoxy resin, or it can be silicone, which is not specifically limited herein. By using a glue with a high refractive index to form the bonding body 130 to bond the glass lamp panel 110 and the glass cover plate 120, the external quantum efficiency of the LED lamp 111 is improved, the light loss at the glass-air interface is avoided, and thus the luminous efficiency of the LED lamp 111 is improved.
[0060] S05. Provide the glass lamp panel 110 such that the LED lamps 111 thereon face the bonding body 130 of the glass cover plate 120 and are aligned with it one by one. Fasten the glass lamp panel 110 onto the glass cover plate 120, and embed the LED lamps 111 correspondingly into the bonding body 130, so that the glass lamp panel 110 and the glass cover plate 120 are bonded through the bonding tape 140 and the bonding body 130.
[0061] Combined with Figures 6 - 7 As shown, during bonding, the glass lamp panel 110 is fastened downward onto the first side surface of the glass cover plate 120, and the positions of the LED lamps 111 are corresponding to the bonding bodies 130 one by one to ensure that each LED lamp 111 is embedded into the corresponding spherical bonding body 130. At this time, the spherical bonding body 130 forms an inverted bowl shape under the pressing of the glass cover plate 120. Specifically, the bowl mouth position of the bonding body 130 is bonded to the glass cover plate 120, and its bowl bottom position is connected to the glass lamp panel 110, as Figure 6 shown. At the same time, the glass lamp panel 110 and the glass cover plate 120 are also bonded through the bonding tape 140. Then, the glue is cured at a high temperature so that the glass lamp panel 110 and the glass cover plate 120 are bonded together by the bonding body 130 and the bonding tape 140. The bowl-shaped bonding body 130 enables the large-angle light emitted by the LED lamp 111 to be reflected and enter the glass cover plate 120, improving the light utilization rate, as Figure 7 shown.
[0062] Of course, the bonding body 130 is not limited to the bowl shape. Forming it into a spherical shape can also reflect the large-angle light emitted by the LED lamp 111 and make it enter the glass cover plate 120.
[0063] Combined with Figure 7As shown in the figure, for the glass lamp panel assembly 100 obtained by the manufacturing method of the present invention, when the LED lamp 111 emits light, the bowl-shaped bonding body 130 reflects the large-angle light emitted by the LED lamp 111 and then enters the glass cover plate 120, improving the light utilization rate; and the second reflective ink layer 122 on the second side of the glass cover plate 120 can reflect most of the light emitted by the LED lamp 111 passing through the glass cover plate 120 back into the interior of the glass cover plate 120 for propagation and diffusion, improving the uniformity of light emission. The glass lamp panel assembly 100 of the present invention is paired with an optical diffuser plate 200 and an optical film 300, which can provide a uniform surface light source, achieve a thin backlight surface light source, and at the same time the high heat of the LED lamp 111 will not affect the optical diffuser plate 200. Moreover, the manufacturing process of the glass lamp panel assembly 100 of the present invention is simple and the cost is low, and an ideal thin backlight source can be obtained.
[0064] In summary, due to the glass lamp panel assembly 100 of the present invention, a first reflective ink layer 121 is provided on the first side of the glass cover plate 120, and a first opening 1211 arranged in an array is provided on the first reflective ink layer 121. A second reflective ink layer 122 is provided at a position corresponding to the first opening 1211 on the second side thereof. A second opening 1221 is provided on the second reflective ink layer 122, and the outer diameter of the second reflective ink layer 122 is greater than the outer diameter of the first opening 1211, and the inner diameter of the second opening 1221 is smaller than the inner diameter of the first opening 1211; at the same time, a bonding body 130 is arranged in the first opening 1211, and a bonding tape 140 is arranged in the area between the first openings 1211; then the glass lamp panel 110 and the glass cover plate 120 are bonded through the bonding body 130 and the bonding tape 140, and each LED lamp 111 is correspondingly embedded in a bonding body 130. Therefore, the bonding body 130 can reflect as much light as possible emitted by the LED lamp 111 into the glass cover plate 120, thereby improving the light emission efficiency and reducing the power consumption; and the second reflective ink layer 122 on the second side of the glass cover plate 120 can reflect most of the light emitted by the LED lamp 111 back into the interior of the glass cover plate 120 for propagation and diffusion, thereby improving the uniformity of light emission. After the glass lamp panel assembly 100 of the present invention is paired with the optical diffuser plate 200 and the optical film 300, it can provide a uniform surface light source, achieve a thin backlight surface light source, and at the same time the high heat of the LED lamp 111 will not affect the optical diffuser plate 200, enabling the glass lamp panel assembly 100 of the present invention to meet the technical requirements of the Mini-LED backlight system.
[0065] Correspondingly, the manufacturing method of the glass lamp panel assembly provided by the present invention also has the above technical effects.
[0066] The above-disclosed are only the preferred embodiments of the present invention. Of course, the scope of rights of the present invention cannot be limited thereby. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.
Claims
1. A glass lamp panel assembly, characterized in that, Comprising: A glass lamp panel, on one side of which there are a plurality of Mini-LED lamps arranged in an array; A glass cover plate, on the first side of which there is a first reflective ink layer, on which there are first openings arranged in an array, and on the second side of which there is a second reflective ink layer corresponding to the positions of the first openings, on which there are second openings, and the outer diameter of the second reflective ink layer is greater than the outer diameter of the first opening, and the inner diameter of the second opening is smaller than the inner diameter of the first opening; An adhesive body, arranged in the first opening of the glass cover plate and protruding from the first reflective ink layer, the bottom surface of the adhesive body being bonded to the first side, and the surface of the adhesive body gradually narrowing from the first side towards a direction away from the first side and having an arc-shaped structure; the adhesive body is arranged opposite to the second opening, and the outer diameter of the adhesive body is greater than the outer diameter of the second opening; The glass lamp panel is bonded to the first side of the glass cover plate through the adhesive body, and each Mini-LED lamp is correspondingly embedded in one of the adhesive bodies.
2. The glass lamp panel assembly according to claim 1, wherein It further includes an adhesive tape, which is arranged in the area between the first openings and is bonded to the first reflective ink layer and the glass lamp panel.
3. The glass lamp panel assembly according to claim 2, characterized in that, The thickness of the adhesive tape is greater than the thickness of the Mini-LED lamp.
4. A manufacturing method of a glass lamp panel assembly, characterized in that, Including the following steps: (1) Provide a glass cover plate, screen-print reflective ink on the first side of the glass cover plate to obtain a first reflective ink layer, and there are first openings arranged in an array on the first reflective ink layer; (2) Screen-print reflective ink on the second side of the glass cover plate corresponding to the positions of the first openings to obtain a second reflective ink layer, on which there are second openings, and the outer diameter of the second reflective ink layer is greater than the outer diameter of the first opening, and the aperture of the second opening is smaller than the aperture of the first opening; (3) Drop glue in sequence at the positions within the first openings on the first side of the glass cover plate, so as to form an adhesive body within the first openings, the bottom surface of the adhesive body being bonded to the first side, and the surface of the adhesive body gradually narrowing from the first side towards a direction away from the first side and having an arc-shaped structure; the adhesive body is arranged opposite to the second opening, and the outer diameter of the adhesive body is greater than the outer diameter of the second opening; (4) Provide a glass lamp panel, make the Mini-LED lamps thereon face the adhesive body and align them one by one, buckle the glass lamp panel on the glass cover plate, and make the Mini-LED lamps correspondingly embedded in the adhesive bodies, so that the glass lamp panel and the glass cover plate are bonded through the adhesive body.
5. The manufacturing method of the glass lamp panel assembly according to claim 4, wherein, Before step (3), it further includes the following step: Provide an adhesive tape, paste the adhesive tape on the area between the first openings on the first reflective ink layer, and the adhesive tape is used for bonding the glass lamp panel and the glass cover plate.
6. The manufacturing method of the glass lamp panel assembly according to claim 5, characterized in that The thickness of the adhesive tape is greater than the thickness of the Mini-LED lamp.
Citation Information
Patent Citations
Backlight module set and display device
CN105404053A