CN210605281U - Direct type backlight module, liquid crystal display screen and terminal equipment - Google Patents
Direct type backlight module, liquid crystal display screen and terminal equipment Download PDFInfo
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- CN210605281U CN210605281U CN201921663621.2U CN201921663621U CN210605281U CN 210605281 U CN210605281 U CN 210605281U CN 201921663621 U CN201921663621 U CN 201921663621U CN 210605281 U CN210605281 U CN 210605281U
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- backplate
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Abstract
The utility model discloses a straight following formula backlight unit, liquid crystal display and terminal equipment, wherein, straight following formula backlight unit includes the backplate, set gradually the diffuser plate on the backplate, the optics diaphragm, OC and toughened glass, on the backplate and be close to its edge and be provided with the frame, the frame includes the body, the body is close to the protruding press mold convex part that is equipped with in one side at backplate center, the optics diaphragm is compressed tightly between press mold convex part and diffuser plate, one side that the backplate was kept away from to the body is provided with the first step face parallel with the press mold convex part, toughened glass sets up on first step face, the OC sets up the one side that is close to the optics diaphragm at toughened glass. The utility model discloses a straight following formula backlight unit sets up the integral type frame, has simplified the structure of frame, need not to assemble the frame, has reduced optics diaphragm, OC and toughened glass's the fixed degree of difficulty.
Description
Technical Field
The utility model relates to a display device technical field especially relates to a straight following formula backlight unit, liquid crystal display and terminal equipment.
Background
In the conventional technology, the lcd has become the mainstream display in the market due to its characteristics of low electromagnetic radiation, low power consumption, low heat generation, light weight, and the like, and the LED backlight display also has been widely used. The current LED backlight display in the market is mainly classified into a side-in type and a direct-down type according to the light-in mode. The side-in type is to install the LED lamp strings of the backlight module around the liquid crystal screen, and the direct type is to install the LED lamp strings of the backlight module on the front and back surfaces of the liquid crystal screen, so that the direct type backlight display has lower cost and wider application range relatively.
At present, the frame of conventional straight following formula backlight unit sets up to the integrated configuration of inside casing and frame usually, and the inside casing is used for compressing tightly optical film and diffuser plate on the backplate, and the frame is used for supporting OC (liquid crystal display panel) and toughened glass, and the structure of this frame is complicated, and spare part is in large quantity, has increased and has assembled degree of difficulty and cost.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an aim at: the utility model provides a straight following formula backlight unit, liquid crystal display and terminal equipment, it sets up the integral type frame, has simplified the structure of frame, need not to assemble the frame, has reduced optics diaphragm, OC and toughened glass's the fixed degree of difficulty.
To achieve the purpose, the embodiment of the present invention adopts the following technical solutions:
the first aspect provides a straight following formula backlight unit, includes the backplate, sets gradually diffuser plate, optics diaphragm, OC and toughened glass on the backplate, be adjacent to its edge on the backplate and be provided with the frame, the frame includes the body, the body is close to the protruding press mold convex part that is equipped with in one side at backplate center, optics diaphragm is compressed tightly press mold convex part with between the diffuser plate, the body is kept away from one side of backplate be provided with the parallel first step face of press mold convex part, toughened glass sets up on the first step face, the OC sets up toughened glass is close to one side of optics diaphragm.
As a straight following formula backlight unit's an preferred scheme, press mold convex part with be provided with the second step face between the first step face, the second step face with first step face is parallel and the interval, the OC sets up on the second step face.
As a preferable scheme of the direct type backlight module, the second step surface and a side surface of the film pressing convex part far away from the optical film are located on the same plane.
As a preferable scheme of the direct type backlight module, a first limiting convex part is convexly arranged on the first step surface, and the first limiting convex part is adjacent to an edge of one side of the body far away from the center of the back plate.
As a preferable scheme of the direct type backlight module, the height of the first limit convex part is not greater than the thickness of the tempered glass.
As a preferred scheme of the direct type backlight module, one side of the press film convex part close to the optical diaphragm is a pressing side, a second limit convex part is convexly arranged on the pressing side, the second limit convex part is located at one end of the press film convex part close to the center of the back plate, a buffer layer is arranged between the press film convex part and the optical diaphragm, and the thickness of the buffer layer is not less than the height of the second limit convex part protruding out of the pressing side.
As a preferable scheme of the direct type backlight module, the body is connected with the back plate through screws, an insertion groove is concavely formed in one side of the body close to the back plate, a bent edge is bent towards the body at the edge of the back plate, and the bent edge is inserted into the insertion groove.
As a preferred scheme of the direct type backlight module, one side of the back plate, which is close to the optical diaphragm, is convexly provided with a suspension column, one end of the suspension column, which is far away from the back plate, is arranged at intervals with the pressure film convex parts, and the optical diaphragm is provided with a suspension hole which is in splicing fit with the suspension column.
In a second aspect, a liquid crystal display panel is provided, which comprises the direct type backlight module.
In a third aspect, a terminal device is provided, which includes the direct type backlight module.
The utility model discloses beneficial effect does: by arranging the integral frame structure, the assembly of the frame is avoided, the number of parts of the frame is reduced, and the manufacturing cost is reduced; the film pressing convex parts are arranged on the frame, so that the optical film can be pressed to prevent the optical film from shifting, and the pressing and fixing mode can facilitate the expansion of the optical film and effectively prevent the optical film from wrinkling; through set up first step face on the body of frame, can support and fix toughened glass.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is a schematic cross-sectional view of a direct type backlight module according to the present invention.
In the figure:
1. a back plate; 11. bending edges; 2. a diffusion plate; 3. an optical film; 4. OC; 5. tempering the glass; 6. a frame; 61. a body; 62. film pressing convex parts; 63. a first step surface; 64. a second step surface; 65. a first limit protrusion; 66. a second limit convex part; 67. inserting grooves; 7. a screw; 8. a suspension post.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. 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.
As shown in fig. 1, the utility model provides a straight following formula backlight unit, including backplate 1, set gradually diffuser plate 2 on backplate 1, optical film 3, OC4 and toughened glass 5, backplate 1 is last and be close to its edge and be provided with frame 6, frame 6 includes body 61, body 61 is close to the protruding press mold convex part 62 that is equipped with in one side at backplate 1 center, optical film 3 is compressed tightly between press mold convex part 62 and diffuser plate 2, one side that backplate 1 was kept away from to body 61 is provided with the first step face 63 parallel with press mold convex part 62, toughened glass 5 sets up on first step face 63, OC4 sets up the one side that is close to optical film 3 at toughened glass 5. By arranging the integral frame 6 structure, the assembly of the frame 6 is avoided, the number of parts of the frame 6 is reduced, and the manufacturing cost is reduced; the film pressing convex parts 62 are arranged on the frame 6, so that the optical film 3 can be compressed, the optical film 3 is prevented from shifting, the optical film 3 can be conveniently expanded due to the compression and fixation mode, and the optical film 3 is effectively prevented from wrinkling; the first step surface 63 is provided on the body 61 of the frame 6, so that the tempered glass 5 can be supported and fixed.
In the present embodiment, a second step surface 64 is provided between the die pressing projection 62 and the first step surface 63, the second step surface 64 is parallel to and spaced from the first step surface 63, and OC4 is provided on the second step surface 64. Through setting up second step surface 64, can support OC4, strengthen the holding power, can also slow down the sunken deformation of toughened glass 5 on the OC4 simultaneously.
In addition, OC4 is laminated with tempered glass 5 with foam (not shown) pressed between the edges, and OC4 has its edge placed on second step surface 64 and tempered glass 5 has its edge placed on first step surface 63. Through set up the bubble cotton between OC4 and toughened glass 5, utilize two parallels and spaced step faces to support OC4 and toughened glass 5 respectively simultaneously, can prevent to take place relative movement between OC4 and the toughened glass 5, the bubble cotton can play the cushioning effect well simultaneously, protects OC4 and avoids it to be damaged. This fixed mode can make the clearance between OC4 and the toughened glass 5 reduce greatly, and the middle part of toughened glass 5 and OC4 can be close to completely laminating under the effect of 5 gravity on toughened glass even, and the clearance at both edges is less than or equal to the cotton thickness of bubble, and the height is write in the greatly reduced touch, and the touch is experienced better.
Specifically, foam is arranged between the edges of the periphery of the OC4 and the toughened glass 5 in a pressure-equalizing manner, so that the periphery of the OC4 can be protected by the foam, a better buffering effect and a light blocking effect are achieved, the flatness of the display surface (namely, the side surface of the toughened glass 5 far away from the OC 4) of the toughened glass 5 is ensured, and the phenomenon that a certain side inclines is avoided.
In the present embodiment, the second step surface 64 and one side of the pressed film protrusion 62 away from the optical film 3 are located on the same plane. This design can increase the support area of second step surface 64 to form effective support for OC4 and tempered glass 5.
In one embodiment, a first limiting convex part 65 is convexly arranged on the first step surface 63, and the first limiting convex part 65 is adjacent to the edge of the side of the body 61 away from the center of the back plate 1. By arranging the first limiting convex part 65, the edge of the toughened glass 5 can be prevented from being exposed, and meanwhile, the toughened glass 5 can be prevented from moving relative to the frame 6.
Specifically, the height of the first limit projection 65 is not more than the thickness of the tempered glass 5. This design is convenient for realize narrow frame design for whole straight following formula backlight unit's outward appearance is more pleasing to the eye.
In an embodiment, one side of the film pressing protrusion 62 close to the optical film 3 is a pressing side, a second limiting protrusion 66 is protruded from the pressing side, the second limiting protrusion 66 is located at one end of the film pressing protrusion 62 close to the center of the backplate 1, a buffer layer (not shown in the figure) is disposed between the film pressing protrusion 62 and the optical film 3, and the thickness of the buffer layer is not less than the height of the second limiting protrusion 66 protruded from the pressing side. Through setting up the spacing convex part 66 of second, can prescribe a limit to the position of buffer layer, prevent that the buffer layer from breaking away from press mold convex part 62, guarantee that the buffering effect of buffer layer is inefficacy.
In addition, the body 61 is connected with the backboard 1 through the screw 7, one side of the body 61 close to the backboard 1 is concavely provided with an inserting groove 67, the edge of the backboard 1 is bent towards the body 61 to form a bent edge 11, and the bent edge 11 is inserted into the inserting groove 67. Through setting up inserting groove 67 and the limit 11 of bending, can lead the installation of backplate 1, reduce backplate 1's the installation degree of difficulty, when the limit 11 of bending of backplate 1 is pegged graft in the inserting groove 67 of frame 6, the through-hole that supplies screw 7 to pass through on backplate 1 is just right with the screw hole on the frame 6.
One side protrusion that backplate 1 is close to optical diaphragm 3 is provided with hangs post 8, hangs the one end that backplate 1 was kept away from to post 8 and presses the membrane convex part 62 interval setting, is provided with on the optical diaphragm 3 and hangs the hole with hanging post 8 grafting complex.
In a second aspect, a liquid crystal display is provided, which employs the direct-type backlight module. The specific structure of the direct-type backlight module refers to the above embodiments.
In a third aspect, a terminal device is provided, which employs the direct type backlight module. The specific structure of the direct-type backlight module refers to the above embodiments.
In the description herein, it is to be understood that the terms "upper" and the like are used in a descriptive sense and based on the orientation or positional relationship shown in the drawings for convenience in description and simplicity of operation, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, configuration and operation in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description herein, references to the description of "an embodiment" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides a straight following formula backlight unit, includes the backplate, sets gradually diffuser plate, optics diaphragm, OC and toughened glass on the backplate, be adjacent to its edge on the backplate and be provided with the frame, its characterized in that, the frame includes the body, the body is close to the protruding press mold convex part that is equipped with in one side at backplate center, optics diaphragm is compressed tightly press mold convex part with between the diffuser plate, the body is kept away from one side of backplate be provided with the parallel first step face of press mold convex part, toughened glass sets up on the first step face, the OC sets up toughened glass is close to one side of optics diaphragm.
2. The direct type backlight module as claimed in claim 1, wherein a second step surface is disposed between the embossed protrusions and the first step surface, the second step surface is parallel to and spaced apart from the first step surface, and the OC is disposed on the second step surface.
3. The direct-type backlight module as claimed in claim 2, wherein the second step surface is located on the same plane as a side of the embossed film away from the optical film.
4. The direct type backlight module as claimed in claim 1, wherein the first step surface is provided with a first position-limiting protrusion protruding therefrom, and the first position-limiting protrusion is adjacent to an edge of a side of the main body away from the center of the back plate.
5. The direct-type backlight module as claimed in claim 4, wherein the height of the first position-limiting protrusion is not greater than the thickness of the tempered glass.
6. The direct-type backlight module according to any of claims 1 to 5, wherein a side of the film-pressing protrusion near the optical film is a pressing side, a second limiting protrusion is protruded from the pressing side, the second limiting protrusion is located at an end of the film-pressing protrusion near the center of the back plate, a buffer layer is disposed between the film-pressing protrusion and the optical film, and a thickness of the buffer layer is not less than a height of the second limiting protrusion protruded from the pressing side.
7. The direct type backlight module according to any one of claims 1 to 5, wherein the body is connected to the back plate by screws, an insertion groove is recessed on a side of the body close to the back plate, an edge of the back plate is bent toward the body to form a bent edge, and the bent edge is inserted into the insertion groove.
8. The direct type backlight module according to any one of claims 1 to 5, wherein a suspension post is protruded from a side of the back plate close to the optical film, an end of the suspension post away from the back plate is spaced from the film-pressing protrusion, and a suspension hole is formed in the optical film for mating with the suspension post.
9. A liquid crystal display panel comprising the direct type backlight module according to any one of claims 1 to 8.
10. A terminal device, comprising the direct type backlight module of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921663621.2U CN210605281U (en) | 2019-09-30 | 2019-09-30 | Direct type backlight module, liquid crystal display screen and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921663621.2U CN210605281U (en) | 2019-09-30 | 2019-09-30 | Direct type backlight module, liquid crystal display screen and terminal equipment |
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| Publication Number | Publication Date |
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| CN210605281U true CN210605281U (en) | 2020-05-22 |
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| CN201921663621.2U Active CN210605281U (en) | 2019-09-30 | 2019-09-30 | Direct type backlight module, liquid crystal display screen and terminal equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093426A (en) * | 2021-04-15 | 2021-07-09 | 深圳可视科技有限公司 | Zero-paste conference flat-panel display and installation method thereof |
| CN113109961A (en) * | 2021-04-09 | 2021-07-13 | 深圳创维－Rgb电子有限公司 | Display module |
| CN113534538A (en) * | 2021-07-30 | 2021-10-22 | 合肥惠科金扬科技有限公司 | Backlight module and display device |
| CN114582241A (en) * | 2022-03-25 | 2022-06-03 | 北京京东方显示技术有限公司 | Bracket of display module, display module and assembly method of display module |
| CN114639320A (en) * | 2020-12-15 | 2022-06-17 | Tcl商用信息科技(惠州)有限责任公司 | Display screen shell and display screen |
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2019
- 2019-09-30 CN CN201921663621.2U patent/CN210605281U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114639320A (en) * | 2020-12-15 | 2022-06-17 | Tcl商用信息科技(惠州)有限责任公司 | Display screen shell and display screen |
| CN114639320B (en) * | 2020-12-15 | 2023-09-19 | Tcl商用信息科技(惠州)有限责任公司 | Display screen shell and display screen |
| CN113109961A (en) * | 2021-04-09 | 2021-07-13 | 深圳创维－Rgb电子有限公司 | Display module |
| CN113093426A (en) * | 2021-04-15 | 2021-07-09 | 深圳可视科技有限公司 | Zero-paste conference flat-panel display and installation method thereof |
| CN113534538A (en) * | 2021-07-30 | 2021-10-22 | 合肥惠科金扬科技有限公司 | Backlight module and display device |
| CN113534538B (en) * | 2021-07-30 | 2023-03-17 | 合肥惠科金扬科技有限公司 | Backlight module and display device |
| CN114582241A (en) * | 2022-03-25 | 2022-06-03 | 北京京东方显示技术有限公司 | Bracket of display module, display module and assembly method of display module |
| CN114582241B (en) * | 2022-03-25 | 2024-01-30 | 北京京东方显示技术有限公司 | Support of display module, display module and assembly method of display module |
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