CN111583783A - Backlight, display screen and mobile device of glue iron integration - Google Patents
Backlight, display screen and mobile device of glue iron integration Download PDFInfo
- Publication number
- CN111583783A CN111583783A CN202010430560.6A CN202010430560A CN111583783A CN 111583783 A CN111583783 A CN 111583783A CN 202010430560 A CN202010430560 A CN 202010430560A CN 111583783 A CN111583783 A CN 111583783A
- Authority
- CN
- China
- Prior art keywords
- metal frame
- rubber layer
- guide plate
- light guide
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
- F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/87—Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0085—Means for removing heat created by the light source from the package
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The embodiment of the application provides a glue and iron integrated backlight source, a display screen and mobile equipment, which comprise a metal frame; the rubber layer is arranged in the metal frame and connected with the metal frame; the reflecting film, the light guide plate, the first brightness enhancement film, the diffusion film, the second brightness enhancement film and the shading film are arranged on the rubber layer in a stacked mode from bottom to top; the metal frame comprises a bottom surface and a side surface vertical to the bottom surface; the bottom surface and the side surface are provided with Y-shaped through holes; the rubber layer is injected on the metal frame and the Y-shaped through hole; the side surface of the light guide plate is provided with a flexible circuit board and a shading sheet; one side of the flexible circuit board facing the light guide plate is provided with an LED lamp; a heat conducting metal sheet is arranged on one side of the flexible circuit board away from the light guide plate; the heat-conducting metal sheet is provided with a heat-radiating double-sided adhesive tape; the heat dissipation double faced adhesive tape is connected with the metal frame. Through the mode, the connection stability between the rubber frame and the iron frame is improved, and meanwhile the heat dissipation effect of the backlight source is improved.
Description
Technical Field
The application relates to the technical field of backlight sources, in particular to a backlight source, a display screen and a mobile device which are integrated by glue and iron.
Background
The display screen itself does not emit light and requires a backlight to provide light for it. The backlight source mainly comprises a light guide plate and a line light source (such as an LED light bar) arranged outside the side surface of the light guide plate, the line light source and other structures are usually supported and fixed by an iron frame made of metal, and the inner side of the iron frame is also provided with a rubber frame made of soft materials such as rubber and the like and used for being in contact with the light guide plate, the line light source and the like. In order to simplify the backlight structure, the existing "glue-iron integrated" technology directly connects the iron frame and the glue frame together to form a component (backlight glue-iron assembly). However, the existing glue-iron integrated backlight source has the problems of poor connection stability between the glue frame and the iron frame, poor heat dissipation effect and the like.
Disclosure of Invention
An object of this application is to provide backlight, display screen and mobile device of glued indisputable integration for realize promoting the technological effect of backlight radiating effect when improving "glue frame" and "iron frame" between connection stability.
In a first aspect, an embodiment of the present application provides a rubber-iron integrated backlight source, including a metal frame; the rubber layer is arranged in the metal frame and connected with the metal frame; the reflecting film, the light guide plate, the first brightness enhancement film, the diffusion film, the second brightness enhancement film and the shading film are arranged on the rubber layer in a stacked mode from bottom to top; the metal frame comprises a bottom surface and a side surface perpendicular to the bottom surface; the bottom surface and the side surface are both provided with Y-shaped through holes; the rubber layer is injected on the metal frame and the Y-shaped through hole; the side surface of the light guide plate is provided with a flexible circuit board and a shading sheet; an LED lamp is arranged on one side, facing the light guide plate, of the flexible circuit board; a heat conducting metal sheet is arranged on one side of the flexible circuit board, which is far away from the light guide plate; the heat-conducting metal sheet is provided with a heat-radiating double-sided adhesive tape; the heat dissipation double faced adhesive tape is connected with the metal frame.
Optionally, the metal frame is rectangular, and the rubber layers are respectively arranged at each corner and each center of each side of the metal frame; the bottom surface and the side surface of the metal frame at the position where the rubber layer is arranged are both provided with the Y-shaped through hole.
Optionally, the metal frame is rectangular, the rubber layer is arranged around the inside of the metal frame, and the Y-shaped through holes are uniformly formed in the bottom surface and the side surface of the metal frame.
Optionally, a groove arranged around the Y-shaped through hole is arranged on one side, away from the rubber layer, of the bottom surface of the metal frame.
Optionally, the number of the LED lamps is one or more.
Optionally, the light shielding film includes a black and white light shielding double-sided tape, and a window is opened in a middle area of the black and white light shielding double-sided tape to define the visible area.
In a second aspect, an embodiment of the present application provides a display screen, which includes the backlight source and a power source connected to the flexible printed circuit of the backlight source.
In a third aspect, an embodiment of the present application provides a mobile device, including a housing, a main board, and the above display screen; the display screen is arranged on the shell; the mainboard sets up in the shell, with the display screen is connected.
The beneficial effect that this application can realize is: this application has all set up "Y" type through-hole in the side of metal frame and bottom surface, and the rubber layer sets up in metal frame and "Y" type through-hole through the mode of moulding plastics, is that the connection of rubber layer and metal frame is more stable, is difficult to not hard up. Set up flexible printed circuit board and anti-dazzling screen in the side of light guide plate, flexible printed circuit board is located LED lamp back one side simultaneously and is equipped with the heat conduction foil and bonds the heat dissipation double faced adhesive tape on the heat conduction foil, and the heat dissipation double faced adhesive tape is connected with the metal frame simultaneously, has improved the radiating effect of backlight when guaranteeing that light fully gives off.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is an exploded schematic view of a backlight according to an embodiment of the present disclosure;
fig. 2 is a schematic top view of a first glue and iron integrated assembly according to an embodiment of the present disclosure;
fig. 3 is a schematic top view of a second glue-iron integrated assembly according to an embodiment of the present disclosure;
fig. 4 is a schematic view of a bottom structure of a metal frame according to an embodiment of the present disclosure;
fig. 5 is a schematic side view of a metal frame according to an embodiment of the present disclosure;
fig. 6 is a schematic view of a light guide plate according to an embodiment of the present disclosure;
fig. 7 is a schematic cross-sectional view of a flexible printed circuit according to an embodiment of the present application.
Icon: 10-a backlight source; 100-a metal frame; 110- "Y" type through hole; 120-grooves; 200-a rubber layer; 300-a reflective film; 400-a light guide plate; 410-flexible circuit board; 411-LED lamps; 412-thermally conductive foil; 413-heat dissipation double faced adhesive tape; 420-shading sheet; 500-a first brightness enhancement film; 600-a diffusion membrane; 700-a second brightness enhancement film; 800-light shielding film.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, fig. 1 is a schematic diagram of an exploded structure of a backlight according to an embodiment of the present disclosure; fig. 2 is a schematic top view of an integrated assembly of glue and iron provided in an embodiment of the present application; fig. 3 is a schematic top view of an integrated assembly of glue and iron provided in an embodiment of the present application; fig. 4 is a schematic view of a bottom structure of a metal frame according to an embodiment of the present disclosure; fig. 5 is a schematic side view of a metal frame according to an embodiment of the present disclosure; fig. 6 is a schematic view of a light guide plate according to an embodiment of the present disclosure; fig. 7 is a schematic cross-sectional view of a flexible printed circuit according to an embodiment of the present application.
The glue and iron integrated backlight source 10 provided by the embodiment of the application comprises a metal frame 100; a rubber layer 200 disposed in the metal frame 100 and connected to the metal frame 100; a reflective film 300, a light guide plate 400, a first brightness enhancement film 500, a diffusion film 600, a second brightness enhancement film 700 and a light shielding film 800 which are arranged on the rubber layer 200 and are sequentially stacked from bottom to top; the metal frame 100 includes a bottom surface and a side surface perpendicular to the bottom surface; the bottom surface and the side surface are both provided with Y-shaped through holes 110; the rubber layer 200 is injected on the metal frame 100 and the Y-shaped through hole 110; a flexible circuit board 410 and a light shielding sheet 420 are arranged on the side surface of the light guide plate 400; as shown in fig. 7 (fig. 7 is a cross-sectional view taken along direction a in fig. 6), LED lamps 411 are disposed on a side of the flexible printed circuit 410 facing the light guide plate 400, the number of the LED lamps 411 may be one or more, and the specific number of the LED lamps may be selected according to actual requirements; a heat conducting metal sheet 412 is disposed on a side of the flexible printed circuit 410 away from the light guide plate 400, and the heat conducting metal sheet 412 may be a copper sheet; a heat dissipation double-sided adhesive tape 413 is arranged on the heat conductive metal sheet 412, and the heat dissipation double-sided adhesive tape 413 can be an IC (integrated circuit) heat conductive double-sided adhesive tape; the heat dissipation double-sided tape 413 is connected to the metal frame 100.
In one embodiment, the light shielding film 800 may be a black and white light shielding double-sided tape, and a window is opened in a middle region of the black and white light shielding double-sided tape to define a visible region.
In one embodiment, the metal frame 100 is rectangular, and the rubber layer 200 is respectively disposed at each corner and each side of the metal frame 100; the metal frame 100 is provided with a Y-shaped through hole 110 on both the bottom surface and the side surface of the rubber layer 200. During manufacturing, the rubber layer 200 may be disposed at a corresponding position by injection molding, and the rubber is fully injected into the "Y" shaped through hole 110 to form an integrated structure. The connection between the rubber layer 200 and the metal frame 100 can be more stable through the Y-shaped through hole 110 arranged on the metal frame 100; meanwhile, the rubber layer 200 is arranged in the above mode, so that the consumption of materials is reduced.
In one embodiment, the metal frame 100 is rectangular, the rubber layer 200 is disposed around the inside of the metal frame 100, and the "Y" shaped through holes 110 are uniformly disposed on the bottom and side surfaces of the metal frame 100. In this way, the stability of mounting of the reflective film 300, the light guide plate 400, the first brightness enhancement film 500, the diffusion film 600, the second brightness enhancement film 700, the light shielding film 800, and the like can be sufficiently ensured.
The shape of the metal frame 100 may be selected according to actual needs, and for example, the metal frame 100 may be a rounded rectangle, a square, or the like.
In one embodiment, in order to further ensure the stability of the connection between the metal frame 100 and the rubber layer 200, a groove 120 is formed around the Y-shaped through hole 110 on the side of the bottom surface of the metal frame 100 away from the rubber layer 200. When the rubber layer 200 is injection molded, rubber may be injected into the groove 120, so that the rubber layer 200 and the metal frame 100 are more firmly connected.
In an embodiment, an embodiment of the present application further provides a display screen, which includes the backlight 10 and a power supply connected to the flexible printed circuit 410 of the backlight 10.
In an implementation manner, an embodiment of the present application further provides a mobile device, which includes a housing, a motherboard, and the display screen, where the display screen is disposed on the housing; the mainboard sets up in the shell, is connected with the display screen.
In summary, the embodiment of the present application provides a glue and iron integrated backlight, a display screen and a mobile device, which includes a metal frame; the rubber layer is arranged in the metal frame and connected with the metal frame; the reflecting film, the light guide plate, the first brightness enhancement film, the diffusion film, the second brightness enhancement film and the shading film are arranged on the rubber layer in a stacked mode from bottom to top; the metal frame comprises a bottom surface and a side surface vertical to the bottom surface; the bottom surface and the side surface are provided with Y-shaped through holes; the rubber layer is injected on the metal frame and the Y-shaped through hole; the side surface of the light guide plate is provided with a flexible circuit board and a shading sheet; one side of the flexible circuit board facing the light guide plate is provided with an LED lamp; a heat conducting metal sheet is arranged on one side of the flexible circuit board away from the light guide plate; the heat-conducting metal sheet is provided with a heat-radiating double-sided adhesive tape; the heat dissipation double faced adhesive tape is connected with the metal frame. Through the mode, the connection stability between the rubber frame and the iron frame is improved, and meanwhile the heat dissipation effect of the backlight source is improved.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A glue and iron integrated backlight source is characterized by comprising a metal frame; the rubber layer is arranged in the metal frame and connected with the metal frame; the reflecting film, the light guide plate, the first brightness enhancement film, the diffusion film, the second brightness enhancement film and the shading film are arranged on the rubber layer in a stacked mode from bottom to top;
the metal frame comprises a bottom surface and a side surface perpendicular to the bottom surface; the bottom surface and the side surface are both provided with Y-shaped through holes; the rubber layer is injected on the metal frame and the Y-shaped through hole;
the side surface of the light guide plate is provided with a flexible circuit board and a shading sheet; an LED lamp is arranged on one side, facing the light guide plate, of the flexible circuit board; a heat conducting metal sheet is arranged on one side of the flexible circuit board, which is far away from the light guide plate; the heat-conducting metal sheet is provided with a heat-radiating double-sided adhesive tape; the heat dissipation double faced adhesive tape is connected with the metal frame.
2. The backlight source of claim 1, wherein the metal frame is rectangular, and the rubber layers are respectively disposed at corners and a center of each side of the metal frame; the bottom surface and the side surface of the metal frame at the position where the rubber layer is arranged are both provided with the Y-shaped through hole.
3. The backlight source as claimed in claim 1, wherein the metal frame is rectangular, the rubber layer is disposed around the inside of the metal frame, and the "Y" shaped through holes are uniformly disposed on the bottom and side surfaces of the metal frame.
4. The backlight source as claimed in claim 1, wherein a groove is formed around the Y-shaped through hole on a side of the bottom surface of the metal frame away from the rubber layer.
5. The backlight of claim 1, wherein the number of LED lamps is one or more.
6. The backlight source of claim 1, wherein the light shielding film comprises a black and white light shielding double-sided tape, and a window is opened in a middle region of the black and white light shielding double-sided tape to define a visible region.
7. A display screen, comprising the backlight source of any one of claims 1 to 6 and a power supply connected to the flexible printed circuit of the backlight source.
8. A mobile device comprising a housing, a motherboard, and the display screen of claim 7; the display screen is arranged on the shell; the mainboard sets up in the shell, with the display screen is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430560.6A CN111583783B (en) | 2020-05-20 | 2020-05-20 | Backlight, display screen and mobile device of glue iron integration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430560.6A CN111583783B (en) | 2020-05-20 | 2020-05-20 | Backlight, display screen and mobile device of glue iron integration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111583783A true CN111583783A (en) | 2020-08-25 |
| CN111583783B CN111583783B (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010430560.6A Active CN111583783B (en) | 2020-05-20 | 2020-05-20 | Backlight, display screen and mobile device of glue iron integration |
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| Country | Link |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111583783B (en) | 2022-09-20 |
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