CN111538117A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN111538117A CN111538117A CN202010457517.9A CN202010457517A CN111538117A CN 111538117 A CN111538117 A CN 111538117A CN 202010457517 A CN202010457517 A CN 202010457517A CN 111538117 A CN111538117 A CN 111538117A
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- China
- Prior art keywords
- backlight module
- metal plate
- frame
- plastic frame
- openings
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Classifications
-
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- 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
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The application provides a backlight module and a display device, wherein the backlight module comprises a reflector plate; the light guide plate is arranged on the reflecting sheet; the light source is arranged between the reflecting sheet and the light guide plate or positioned on the side of the light guide plate; the metal plate is arranged at the edge of the backlight module and comprises a bottom plate part and a bent part perpendicular to the bottom plate part, the bottom plate part is arranged on the surface, away from the light emitting surface, of the backlight module, and the bent part is bent to the side surface of the backlight module; the rubber frame is packaged on the side face of the backlight module, and is provided with a plurality of openings; wherein, the panel beating is located backlight unit and glues between the frame, and the panel beating includes a plurality of and glues the arch of frame trompil butt joint. This application forms certain restrictive force through the cooperation of the card hole on panel beating corner position design buckle structure and the gluey frame, glues the frame through the panel beating restraint to prevent to glue the frame and receive high temperature back emergence warp.
Description
Technical Field
The application relates to the technical field of display, in particular to a backlight module and a display device.
Background
At present, the reliability requirement of the vehicle-mounted module is higher and higher, especially, the large-size module pays more and more attention to the conditions of high temperature, high humidity and the like, for example, the shrinkage rate of the used rubber frame is higher, the rubber frame is easy to deform due to shrinkage, warping and the like under the high-temperature condition, especially, the rubber frame which is easy to warp due to no structural constraint at corners has poor flatness, and the module is easy to have the problem of color unevenness and the like.
The mainstream design for preventing the backlight module from warping at the present stage is as follows: the adhesive tape is used for sticking the adhesive frame and the metal plate together, and the deformation and the warpage of the adhesive frame are reduced as much as possible through the high strength of the metal plate; however, the adhesive tape of this method still has a certain toughness, has the problem of insufficient strength, and the rework is difficult, and the adhesive tape cannot be reused.
Disclosure of Invention
The application provides a backlight unit and display device, through at panel beating corner position design buckle structure with glue the card hole cooperation on the frame for the frame is glued in the restraint, prevents to glue the frame and warp the problem that the warpage leads to backlight unit roughness is bad.
In order to achieve the above effects, the technical scheme provided by the application is as follows:
a backlight module, comprising:
a reflective sheet;
the light guide plate is arranged on the reflecting sheet;
a light source disposed between the reflection sheet and the light guide plate or at a side of the light guide plate;
the metal plate is arranged at the edge of the backlight module and comprises a bottom plate part and a bent part perpendicular to the bottom plate part, the bottom plate part is arranged on one surface of the backlight module, which is far away from the light emitting surface, and the bent part is bent to the side surface of the backlight module;
the rubber frame is packaged on the side face of the backlight module, and is provided with a plurality of openings;
the metal plate is located between the backlight module and the rubber frame, and the metal plate bending portion comprises a plurality of bulges butted with the rubber frame through holes.
In the backlight module of this application, the trompil on gluing the frame is notch structure, glue the trompil on the frame with the protruding nested cooperation of panel beating kink is in order to realize glue the frame with the mutual fastening of panel beating.
In the backlight module of this application, the protruding position of panel beating kink and the trompil position one-to-one on the gluey frame.
In the backlight module of this application, the bellied height of panel beating kink is less than or equal to glue the thickness of frame.
In the backlight module of this application, the arch of panel beating kink with the length of the part that the trompil contacted is more than or equal to 0.5 mm.
In the backlight module of this application, the arch of panel beating kink with panel beating kink integrated into one piece.
In the backlight module of this application, the trompil is located four corners of gluey frame, the arch of panel beating kink is in four corners of gluey frame with the nested cooperation of trompil is in order to prevent glue frame four corners warpage.
In the backlight module of the present application, the metal plate bending portion includes a first protrusion and a second protrusion abutting against the opening of the plastic frame, and the first protrusion and the second protrusion are formed by extending from the same edge of the metal plate bending portion.
In the backlight module of this application, the first arch and the second arch of panel beating kink are in four corners of gluing the frame with the nested cooperation of trompil is in order to prevent glue frame four corners warpage.
The application also provides a display device, which comprises the backlight module.
Has the advantages that: the method comprises the following steps that a plurality of openings are formed in a rubber frame on the side face of the backlight module, and the openings in the rubber frame are of a notch structure; a plurality of bulges butted with the openings are arranged on the bent part of the metal plate; the bulges of the metal plate bending parts are in nested fit with the four corners of the rubber frame and the open holes to form certain constraint force, and the rubber frame is constrained by the metal plate, so that the rubber frame is prevented from being warped and deformed after being subjected to high temperature.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic view of a first structure of a backlight module according to an embodiment of the present disclosure;
fig. 2 is a schematic plan view of a rubber frame according to an embodiment of the present disclosure;
fig. 3 is a schematic view of a second structure of a backlight module according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Among the prior art, because the module size is originally big more, it is higher to glue frame material shrinkage factor, and the corner position of gluing the frame under the high temperature condition takes place shrink warpage easily, consequently uses the adhesive tape to paste frame and panel beating together with gluing usually, and the high strength through the panel beating reduces the deformation warpage of gluing the frame as far as possible, but the adhesive tape of this mode still has certain toughness, has the not enough problem of intensity, and the difficulty of doing over again, and the sticky tape can't used repeatedly. The application provides a display panel and a display device, which can solve the defect of complaint.
Example one
Referring to fig. 1, a first structural diagram of a backlight module provided in the embodiment of the present application is shown.
In this embodiment, the backlight module includes a reflective sheet 10; a light guide plate 20 disposed on the reflective sheet 10; an optical film 30 disposed on a side of the light guide plate 20 away from the reflective sheet 10; the metal plate 40 is arranged at the edge of the backlight module; and a rubber frame 50 encapsulated at the side of the backlight module.
The backlight module further includes a light source 60 disposed between the reflective sheet 10 and the light guide plate 20 or located at a side of the light guide plate 20, and the position of the light source 60 is not limited in this embodiment.
Further, in the present application, the light source 60 is disposed between the reflective sheet 10 and the light guide plate 20.
In this embodiment, the metal plate 40 includes a bottom plate portion and a bending portion perpendicular to the bottom plate portion, the bottom plate portion is disposed on a surface of the backlight module away from the light emitting surface, the bending portion is bent to a side surface of the backlight module, and the metal plate 40 is used for protecting the backlight module.
The metal plate 40 is made of a material with good thermal conductivity, such as stainless steel, an aluminum-zinc-plated steel plate, a zinc-plated steel plate or an aluminum alloy; the metal plate 40 is coated with a heat dissipation coating, so that heat generated by the light source 60 can be dissipated in time, and components inside the backlight module are protected.
Referring to fig. 2, a schematic view of a planar structure of a plastic frame according to an embodiment of the present application is provided.
In this embodiment, the rubber frame 50 is provided with a plurality of openings on a side surface of the backlight module.
The openings are located at four corners of the rubber frame 50.
In this embodiment, the rubber frame 50 can be made of plastic or resin.
In this embodiment, the metal plate 40 is located between the backlight module and the rubber frame 50, and the bent portion of the metal plate includes a plurality of protrusions butted with the openings of the rubber frame 50.
In this embodiment, the opening of the rubber frame 50 is a notch structure, and the opening of the rubber frame 50 is nested and matched with the protrusion of the bending portion of the metal plate 40 to fix the rubber frame 50 and the metal plate 40 to each other.
In this embodiment, the protruding positions of the bent portions of the metal plate 40 correspond to the positions of the openings on the rubber frame 50 one by one.
In this embodiment, the height of the protrusion of the bent portion of the metal plate 40 is less than or equal to the thickness of the rubber frame 50, which is not limited in this embodiment.
Further, in this embodiment, the height of the protrusion of the bent portion of the metal plate 40 is smaller than the thickness of the rubber frame 50.
In this embodiment, the length of the portion of the bent portion of the metal plate 40, which is in contact with the opening, is greater than or equal to 0.5mm, which is not limited in this embodiment.
In the present embodiment, the protrusion of the bent portion of the metal plate 40 is integrally formed with the bent portion of the metal plate 40.
In this embodiment, the openings are located at four corners of the rubber frame 50, and the protrusions of the bent portion of the metal plate 40 are nested and matched with the openings at the four corners of the rubber frame 50 to prevent the four corners of the rubber frame from warping.
In the embodiment, a plurality of openings are formed in the rubber frame 50 on the side surface of the backlight module, and the openings in the rubber frame 50 are in a notch structure; a plurality of bulges butted with the openings are arranged on the bent part of the metal plate 40; the bulges of the bent part of the metal plate 40 are positioned at four corners of the rubber frame 50 and are in nested fit with the open holes to form certain constraint force, and the rubber frame 50 is constrained through the metal plate 40, so that the rubber frame 50 is prevented from warping and deforming due to high temperature.
Referring to fig. 3, a second structural diagram of a backlight module according to an embodiment of the present disclosure is shown.
In this embodiment, the backlight module has a similar/identical structure to the first structure of the backlight module provided in the foregoing embodiment, and please refer to the description of the backlight module in the foregoing embodiment, which is not repeated herein, and the difference between the two is only:
in this embodiment, the bent portion of the metal plate 40 includes a first protrusion 41 and a second protrusion 42 abutting against the opening of the rubber frame 50.
The first protrusion 41 and the second protrusion 42 are formed by extending from the same edge of the bent portion of the metal plate 50.
In this embodiment, the first protrusion 41 and the second protrusion 42 of the bent portion of the metal plate 40 are nested and matched with the openings at four corners of the plastic frame 50 to prevent the four corners of the plastic frame 50 from warping.
Example two
The application also provides a display device, which comprises the backlight module of the embodiment.
The backlight module has been described in detail in the first embodiment, and the description is not repeated here.
The application provides a backlight module and a display device, wherein the backlight module comprises a reflector plate; the light guide plate is arranged on the reflecting sheet; the light source is arranged between the reflecting sheet and the light guide plate or positioned on the side of the light guide plate; the metal plate is arranged at the edge of the backlight module and comprises a bottom plate part and a bent part perpendicular to the bottom plate part, the bottom plate part is arranged on the surface, away from the light emitting surface, of the backlight module, and the bent part is bent to the side surface of the backlight module; the rubber frame is packaged on the side face of the backlight module, and is provided with a plurality of openings; wherein, the panel beating is located backlight unit and glues between the frame, and the panel beating includes a plurality of and glues the arch of frame trompil butt joint.
The method comprises the following steps that a plurality of openings are formed in a rubber frame on the side face of the backlight module, and the openings in the rubber frame are of a notch structure; a plurality of bulges butted with the openings are arranged on the metal plate bending part; the bulges of the metal plate bending parts are in nested fit with the four corners of the rubber frame and the open holes to form certain constraint force, and the rubber frame is constrained by the metal plate, so that the rubber frame is prevented from being warped and deformed after being subjected to high temperature.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The backlight module and the display device provided by the embodiment of the present application are described in detail above, and a specific example is applied to illustrate the principle and the implementation manner of the present application, and the description of the embodiment is only used to help understanding the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A backlight module, comprising:
a reflective sheet;
the light guide plate is arranged on the reflecting sheet;
a light source disposed between the reflection sheet and the light guide plate or at a side of the light guide plate;
the metal plate is arranged at the edge of the backlight module and comprises a bottom plate part and a bent part perpendicular to the bottom plate part, the bottom plate part is arranged on one surface of the backlight module, which is far away from the light emitting surface, and the bent part is bent to the side surface of the backlight module;
the rubber frame is packaged on the side face of the backlight module, and is provided with a plurality of openings;
the metal plate is located between the backlight module and the rubber frame, and the metal plate bending portion comprises a plurality of bulges butted with the rubber frame through holes.
2. The backlight module according to claim 1, wherein the opening of the plastic frame is a notch structure, and the opening of the plastic frame is nested and matched with the protrusion of the metal plate bending part to fix the plastic frame and the metal plate.
3. The backlight module as claimed in claim 2, wherein the protruding positions of the metal plate bending parts correspond to the positions of the openings on the plastic frame one by one.
4. The backlight module as claimed in claim 3, wherein the height of the protrusion of the metal plate bending part is less than or equal to the thickness of the rubber frame.
5. The backlight module as claimed in claim 4, wherein the length of the portion of the metal plate bent portion contacting the opening is greater than or equal to 0.5 mm.
6. The backlight module of claim 1, wherein the protrusions of the sheet metal bent portions are integrally formed with the sheet metal bent portions.
7. The backlight module as claimed in claim 1, wherein the openings are located at four corners of the plastic frame, and the protrusions of the metal plate bending portions are nested and matched with the openings at the four corners of the plastic frame to prevent the four corners of the plastic frame from warping.
8. The backlight module as claimed in claim 1, wherein the metal plate bending portion comprises a first protrusion and a second protrusion abutting against the opening of the plastic frame, and the first protrusion and the second protrusion are formed by extending from the same edge of the metal plate bending portion.
9. The backlight module as claimed in claim 8, wherein the first and second protrusions of the metal plate bending portion are nested and fitted with the openings at the four corners of the plastic frame to prevent the four corners of the plastic frame from warping.
10. A display device comprising a backlight module according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010457517.9A CN111538117A (en) | 2020-05-26 | 2020-05-26 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010457517.9A CN111538117A (en) | 2020-05-26 | 2020-05-26 | Backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111538117A true CN111538117A (en) | 2020-08-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010457517.9A Pending CN111538117A (en) | 2020-05-26 | 2020-05-26 | Backlight module and display device |
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| Country | Link |
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| CN (1) | CN111538117A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115469480A (en) * | 2022-08-31 | 2022-12-13 | 惠科股份有限公司 | Backlight module and display device |
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| CN1928655A (en) * | 2005-09-09 | 2007-03-14 | 群康科技(深圳)有限公司 | Back light module unit |
| TW201020619A (en) * | 2008-11-27 | 2010-06-01 | Au Optronics Corp | Display module and assembling method thereof |
| WO2012081458A1 (en) * | 2010-12-14 | 2012-06-21 | シャープ株式会社 | Lighting device and display device |
| CN202522806U (en) * | 2012-04-16 | 2012-11-07 | 青岛海信电器股份有限公司 | Fixed structure of display optical diaphragm |
| CN103216790A (en) * | 2013-04-25 | 2013-07-24 | 深圳市华星光电技术有限公司 | Liquid crystal backlight module and fixing assembly thereof |
| CN207367510U (en) * | 2017-10-13 | 2018-05-15 | 惠科股份有限公司 | Display device |
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2020
- 2020-05-26 CN CN202010457517.9A patent/CN111538117A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928655A (en) * | 2005-09-09 | 2007-03-14 | 群康科技(深圳)有限公司 | Back light module unit |
| TW201020619A (en) * | 2008-11-27 | 2010-06-01 | Au Optronics Corp | Display module and assembling method thereof |
| WO2012081458A1 (en) * | 2010-12-14 | 2012-06-21 | シャープ株式会社 | Lighting device and display device |
| CN202522806U (en) * | 2012-04-16 | 2012-11-07 | 青岛海信电器股份有限公司 | Fixed structure of display optical diaphragm |
| CN103216790A (en) * | 2013-04-25 | 2013-07-24 | 深圳市华星光电技术有限公司 | Liquid crystal backlight module and fixing assembly thereof |
| CN207367510U (en) * | 2017-10-13 | 2018-05-15 | 惠科股份有限公司 | Display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115469480A (en) * | 2022-08-31 | 2022-12-13 | 惠科股份有限公司 | Backlight module and display device |
| CN115469480B (en) * | 2022-08-31 | 2023-08-25 | 惠科股份有限公司 | Backlight module and display device |
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