CN112965291B - Display device and backlight module thereof - Google Patents
Display device and backlight module thereof Download PDFInfo
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- CN112965291B CN112965291B CN202110142973.9A CN202110142973A CN112965291B CN 112965291 B CN112965291 B CN 112965291B CN 202110142973 A CN202110142973 A CN 202110142973A CN 112965291 B CN112965291 B CN 112965291B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
Abstract
The application discloses a display device and a backlight module thereof, wherein the backlight module comprises an optical assembly, a first back plate and a second back plate, and the optical assembly is arranged at the bottom of a display panel; the first back plate is arranged at the bottom of the optical assembly, the second back plate comprises a bottom plate and a side plate, the bottom plate is arranged on one side of the first back plate, which is far away from the optical assembly, and the bottom plate is attached to the first back plate part; the side plate surrounds the display panel and the optical assembly; a cavity is formed between the first back plate and the second back plate, and the display control assembly is arranged in the cavity. According to the display device, the two stacked back plates are arranged, the cavity is arranged between the two back plates, and the display control assembly is accommodated, so that the display control assembly does not occupy the frame area of the display device, and a narrow frame is realized; in addition, the frame of the display device is of an integral structure, so that the display device is more attractive and elegant.
Description
Technical Field
The application relates to the technical field of display, in particular to a display device and a backlight module thereof.
Background
A Liquid Crystal Display (LCD) has many advantages such as a thin body, power saving, and no radiation, and is widely used. At present, the market is increasingly pursuing the narrow thinning of electronic devices, for example, the electronic devices such as notebook computers, mobile phones, tablet computers and the like which need the liquid crystal display device are increasingly thinner, and the frame is increasingly narrower, so the liquid crystal display device is also increasingly required to be narrow thinned.
The liquid crystal display device generally includes a liquid crystal display panel and a Backlight Module (Backlight Module) for providing Backlight for the liquid crystal display panel, and since the existing Backlight mostly adopts a side-in light source and the side of the Backlight Module needs to reserve an astigmatic distance, the frame of the liquid crystal display device is difficult to be made narrower; in addition, the outer frame of the liquid crystal display device at present mostly adopts a splicing structure, and splicing marks exist, so that the overall attractiveness of the liquid crystal display device is influenced
Disclosure of Invention
The application aims to provide a display device and a backlight module thereof, wherein the narrow frame can be achieved, and the frame can be integrated.
The application discloses a display device, which comprises a display panel, a backlight module and a display control assembly, wherein the backlight module comprises an optical assembly, a first back plate and a second back plate, the optical assembly is arranged at the bottom of the display panel, and the display device comprises an optical membrane, a light guide plate and a first reflector plate which are sequentially stacked and arranged along the direction deviating from the display panel; the first back plate is arranged at the bottom of the optical assembly, is attached to the first reflector plate and supports the display panel and the optical assembly; the second back plate comprises a bottom plate and a side plate, the bottom plate is arranged on one side of the first back plate far away from the optical assembly, and the bottom plate is attached to the first back plate part; the side plate is connected with the bottom plate and surrounds the display panel and the optical assembly; a cavity is formed between the first back plate and the second back plate, and the display control assembly is arranged in the cavity.
Optionally, the first end of the first back plate protrudes towards the bottom plate to form a first outward protruding portion, the second end of the first back plate protrudes towards the bottom plate to form a second outward protruding portion, a first cavity is formed between the first outward protruding portion and the bottom plate, and the second outward protruding portion is attached to the bottom plate; the display control assembly is arranged in the first cavity and is communicated with the display panel.
Optionally, a second cavity is formed between the first outward protruding portion and the first reflector, the backlight module includes a first bracket, a light source assembly, and a second bracket, the first bracket is L-shaped, a first end of the first bracket is disposed in the second cavity, and a second end of the first bracket extends toward the display panel and protrudes from the optical assembly; the light source assembly is fixed at the second end of the first bracket and is arranged towards the optical assembly; the second bracket is U-shaped, the first end of the second bracket is arranged between the first end of the first bracket and the first back plate, the second end of the second bracket is attached to the second end of the first bracket, and the third end of the second bracket is arranged at the top of the light source assembly, abuts against the display panel and covers the light source assembly; the second support is made of a light-tight material.
Optionally, the backlight module further includes a second reflector fixed at the third end of the second bracket and disposed toward the light source assembly.
Optionally, the first outer convex portion of the first back plate, the second bracket and the first bracket are provided with corresponding threaded holes, and the first outer convex portion of the first back plate, the second bracket and the first bracket are fixed by screws; the backlight module comprises a first supporting piece, wherein the first supporting piece is arranged between the first end of the first support and the first reflector plate, and the first supporting piece covers the threaded hole of the first support.
Optionally, the display control assembly is communicated with the display panel through a chip on film, a driving chip is arranged on the chip on film, and the driving chip faces the side plate of the second back plate; the backlight module comprises a heat dissipation plate, and the heat dissipation plate is fixed on the side plate and attached to the driving chip.
Optionally, a portion of the chip on film connected to the display panel is located in the bonding region, and the chip on film is connected to a surface of the display panel facing the optical component; the display panel includes a light-shielding layer covering the bonding region.
Optionally, the side plates of the second back plate include a first side plate and a second side plate which are connected, the first side plate is connected with the bottom plate of the second back plate, the second side plate is formed by bending the top of the side plate 180 degrees towards the bottom plate, and the top of the second side plate is abutted to the heat dissipation plate.
Optionally, the backlight module includes a second supporting member and a third supporting member, the second end of the first back plate abuts against the display panel through the second supporting member, and the second outward protruding portion abuts against the optical assembly through the third supporting member; the second supporting piece and the third supporting piece are made of foam or rubber.
The application also discloses a backlight module in the display device, wherein the backlight module comprises an optical assembly, a first back plate and a second back plate, and the first back plate is arranged at the bottom of the optical assembly and is attached to the optical assembly; the second back plate comprises a bottom plate and a side plate, the bottom plate is arranged on one side of the first back plate far away from the optical assembly, and the bottom plate is attached to the first back plate part; the side plate is connected with the bottom plate and surrounds the optical assembly; the first end of the first back plate protrudes towards the bottom plate to form a first outer protruding portion, and a first cavity is formed between the first outer protruding portion and the bottom plate.
In the application, the two stacked back plates are arranged, and the cavity is arranged between the two back plates to accommodate the display control assembly, so that the display control assembly does not occupy the frame area of the display device, and a narrow frame is realized; in addition, the optical assembly and the display panel are supported by the first back plate, so that structures such as a rubber frame are omitted, and the area of a frame is further reduced; moreover, the bottom and the side of the whole display device are both formed by the second back plate of the integrated structure, and the second back plate tightly surrounds the display panel and the optical assembly, so that the splicing phenomenon of the frame does not exist, and the display device is more attractive and elegant.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic diagram of a display device according to an embodiment of the present application;
FIG. 2 is an enlarged schematic view of A of FIG. 1;
FIG. 3 is an enlarged schematic view of alternative A of FIG. 1;
FIG. 4 is an enlarged schematic view of B of FIG. 1;
fig. 5 is a schematic view of a backlight module according to another embodiment of the present application.
100, a display device; 200. a display panel; 210. a first polarizer; 220. a second polarizer; 230. an array substrate; 240. a color film substrate; 250. a light-shielding layer; 300. a backlight module; 310. an optical component; 311. an optical film; 312. a light guide plate; 313. a first reflective sheet; 314. a light barrier; 320. a first back plate; 321. a first end of a first back plate; 322. a first convex portion; 323. a second end of the first back plate; 324. a second outer convex portion; 325. a bending section; 330. a second back plate; 331. a base plate; 332. a side plate; 3321. a first side plate; 3322. a second side plate; 340. a cavity; 341. a first cavity; 342. a second cavity; 350. a first bracket; 351. a first end of a first bracket; 352. a second end of the first bracket; 360. a light source assembly; 361. a light source circuit board; 362. a light source; 370. a second bracket; 371. a first end of a second bracket; 372. a second end of the second bracket; 373. a third end of the second bracket; 380. a second reflective sheet; 390. a heat dissipation plate; 400. a display control component; 410. a chip on film; 411. a binding region; 420. a driving chip; 500. a first support member; 510. a second support member; 520. a third support member; 600. and (4) screws.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
At present, most of display devices are manufactured with printed circuit boards or other display control components in the frame, so that the area of the frame of the display device is increased; moreover, other structures in display panel and the display device are fixed and protected by the mode that frame and backplate combine usually to use at present, can make display device's frame area increase like this, still can lead to display device's outline to be formed by a plurality of structure concatenations, and not only the installation is troublesome, still influences the outward appearance image of product.
Based on this, the present application provides a display device that improves the above technical problem. As shown in fig. 1 to 3, the display device 100 includes a display panel 200, a backlight module 300 and a display control assembly 400, the display control assembly 400 includes control assemblies such as a printed circuit board, a power board, etc., the backlight module 300 includes an optical assembly 310, a first backplane 320 and a second backplane 330, the optical assembly 310 is disposed at the bottom of the display panel 200, and includes an optical film 311, a light guide plate 312 and a first reflector 313 stacked in sequence along a direction away from the display panel 200; the first back plate 320 is arranged at the bottom of the optical assembly 310 and attached to the first reflective sheet 313; the second back plate 330 includes a bottom plate 331 and a side plate 332, the bottom plate 331 is disposed on a side of the first back plate 320 away from the optical component 310, and the bottom plate 331 partially adheres to the first back plate 320; the side plate 332 is connected to the bottom plate 331 and surrounds the display panel 200 and the optical assembly 310; a cavity 340 is formed between the first back plate 320 and the second back plate 330, and the display control assembly 400 is disposed in the cavity 340.
In the present application, by providing two stacked backplates and providing the cavity 340 between the two backplates to accommodate the display control assembly 400, the display control assembly 400 does not occupy the frame area of the display device 100, thereby implementing a narrow frame; in addition, the optical assembly 310 and the display panel 200 are supported by the first back plate 320, so that structures such as a rubber frame are omitted, and the area of a frame is further reduced; moreover, the bottom and the side of the whole display device 100 are formed by the second back plate 330 of an integral structure, and the second back plate 330 tightly surrounds the display panel 200 and the optical assembly 310, so that there is no splicing phenomenon of the bezel, and the display device 100 is more elegant and beautiful.
Specifically, as shown in fig. 1, a first end 321 of the first back plate protrudes toward the bottom plate 331 to form a first protruding portion 322, a second end 323 of the first back plate protrudes toward the bottom plate 331 to form a second protruding portion 324, and a first cavity 341, that is, the cavity 340, is formed between the first protruding portion 322 and the bottom plate 331; the second outer convex portion 324 is attached to the bottom plate 331; the display control assembly 400 is disposed in the first cavity 341 and is in communication with the display panel 200. A plurality of outward protrusions protruding toward the bottom plate 331 may be similarly provided between both ends of the first back plate 320. The design of the convex portion not only enables a cavity to be formed between the first back plate 320 and the optical assembly 310 to accommodate other devices, but also can improve the rigidity of the second back plate 330, prevent the second back plate 330 from cracking when the display device 100 is squeezed, and can reduce the abrasion between the first back plate 320 and the first reflection sheet 313.
Except the first outer convex portions 322, other outer convex portions are abutted against the bottom plate 331 of the second back plate 330, so that the stability of the first back plate 320 is improved; a gap exists between the first outer convex portion 322 and the bottom plate 331 of the second back plate 330 to form a first cavity 341, and the display control assembly 400 is disposed in the first cavity 341; since the first outer protrusion 322 is formed by the first end 321 of the first back plate protruding outward, the circuit connecting the display panel 200 and the printed circuit board is short, which is beneficial to reducing material cost. The display control assembly 400 is fixed on the first external protrusion 322, so that when the display device 100 is impacted or shaken, the vibration transmitted from the second backplate 330 can be reduced, and the protection effect on the display control assembly 400 can be enhanced; as for the fixing manner of the display control assembly 400, it may be fixed by means of bonding.
All the outer convex parts in the first back plate 320 can be in the same shape, and the distance between two adjacent outer convex parts can be the same, so that the outer convex parts in the first back plate 320 can be processed at the same time; the bottom plate 331 of the second back plate 330 may have a structure with different heights, and a depth of the bottom near the first convex portion 322 is greater, so that a first cavity 341 is formed with the first convex portion 322; the bottom part at other positions has a smaller depth so as to abut against other convex parts. The first back plate 320 and the second back plate 330 may be integrally formed or may be two separate structures, and then the first protruding portion 322 and the bottom plate 331 are bonded or welded.
Referring to fig. 2 and 3, a second cavity 342 is formed between the first protrusion 322 and the first reflection sheet 313, the backlight module 300 includes a first bracket 350, a light source assembly 360 and a second bracket 370, the first bracket 350 is L-shaped, a first end 351 of the first bracket is disposed in the second cavity 342, and a second end 352 of the first bracket extends toward the display panel 200 and protrudes from the optical assembly 310; the light source assembly 360 is fixed at the second end 352 of the first bracket and is disposed toward the optical assembly 310; the second bracket 370 is U-shaped, a first end 371 of the second bracket is disposed between the first end 351 of the first bracket and the first back plate 320, a second end 372 of the second bracket is attached to the second end 352 of the first bracket, and a third end 373 of the second bracket is disposed on the top of the light source assembly 360, is attached to the display panel 200, and supports the display panel 200; and the third end 373 of the second bracket covers the light source assembly 360 at the same time. The second support 370 is made of opaque material, so the third end 373 of the second support located on the top of the light source module 360 can block light, preventing light leakage.
In addition, the first bracket 350 is formed by an aluminum extrusion process using a metallic aluminum material; the light source assembly 360 includes a light source circuit board 361 and a light source 362, the light source circuit board 361 is adhered to the second end 352 of the first bracket; when the display panel 200 works for a long time, the light source circuit board 361 generates heat, and the heat generated by the light source circuit board 361 can be dissipated in time due to the good heat dissipation effect of the aluminum metal. The internal structures of the display device 100 in the application are arranged closely, so that the thickness and the frame width of the display device 100 are greatly reduced, and if the heat dissipation effect is poor, the temperature of the display device 100 is easily increased, and the service life is influenced; based on this, this application is all pasted with metal material with light source circuit board 361, printed circuit board, has greatly increased the radiating effect.
Further, the backlight module 300 further includes a second reflective sheet 380, and the second reflective sheet 380 is fixed at the third end 373 of the second bracket and is disposed toward the light source assembly 360. The second reflective sheet 380 can reflect light emitted from the light source 362 back, so that light can only enter the light guide plate 312, thereby improving the utilization rate of the light source 362.
In addition, the display control assembly 400 is communicated with the display panel 200 through a Chip On Film (COF) 410, a Driver IC (Driver IC) is disposed On the COF 410, and the Driver IC faces the side plate 332 of the second backplane 330; the side plate 332 of the second backplane 330 is provided with a heat dissipation plate 390, the heat dissipation plate 390 is attached to the driving chip 420 to dissipate heat of the driving chip 420, and the heat dissipation plate 390, the driving chip 420, the chip on film 410 and the first bracket 350 are sequentially abutted, so that the chip on film 410 is not easy to loosen, and a good connection effect can be maintained between the printed circuit board and the display panel 200.
Wherein, a portion (COF bonding) of the chip on film 410 connected to the display panel 200 is located in the bonding area 411, and the chip on film 410 is connected to a side of the display panel 200 facing the optical assembly 310; the display panel 200 includes a light shielding layer 250 covering the bonding region 411. The COF bonding of the display panel 200 is disposed under the glass of the display panel 200, and can be covered by the BM disposed around the glass of the display panel 200, so that the COF (Chip On Film) element is invisible On the visible surface, and the display panel is more beautiful.
Specifically, the display panel 200 includes an array substrate 230 and a color filter substrate 240 that are arranged opposite to each other, a first polarizer 210 is disposed on an outer side of the array substrate 230, and a second polarizer 220 is disposed on an outer side of the color filter substrate 240; in the present application, the array substrate 230 is disposed on the light-emitting surface, i.e., facing the user, the edge of the array substrate 230 protrudes out of the color filter substrate 240, a GOA circuit and a light-shielding layer 250 are disposed at the protruding position, and a COF bonding is connected to the GOA circuit and shielded by the light-shielding layer 250.
The first outer protrusion 322 of the first back plate 320, the second bracket 370 and the first bracket 350 are fixed by screws 600, and the first outer protrusion 322 of the first back plate 320, the first end 371 of the second bracket and the first end 351 of the first bracket may all have corresponding threaded holes; a threaded hole may be formed only in the first end 351 of the first holder, and through holes may be formed in the first outward protruding portion 322 of the first back plate 320 and the first end 371 of the second holder in a corresponding manner; the screw 600 extends from the first back plate 320 and is fixed with the first end 371 of the second bracket and the first end 351 of the first bracket upwards; the number of the screws 600 may be plural, and the screws may be distributed on the bottom of the first back plate 320 in a plurality of rows and columns to reinforce the fixing strength of the first back plate 320, the first bracket 350 and the second bracket 370.
In addition, the backlight module 300 includes a first support 500, the first support 500 is disposed between the first end 351 of the first bracket and the first reflection sheet 313, and the first support 500 covers the threaded hole of the first bracket 350. When the screw 600 is screwed, in order to avoid the first reflection sheet 313 from being subjected to a large pressing force, the top of the first end 351 of the first bracket is partially sunk, so that a part of the first end 351 of the first bracket abuts against the first reflection sheet 313 to support the optical component 310, a gap exists between the other part of the first end 351 of the first bracket and the first reflection sheet 313 to accommodate the first support member 500, the first support member 500 can be made of foam or rubber and the like to buffer the first bracket 350 and the first reflection sheet 313, and the situation that the first reflection sheet 313 is broken due to the large pressing force applied to the first reflection sheet 313 when the screw 600 is screwed is avoided.
In fig. 4, on the other side of the display device 100, the second end 323 of the first back plate is bent toward the display panel 200 to form a bent portion 325, a second supporting member 510 is sleeved on the bent portion 325, so that the second end 323 of the first back plate is abutted to the display panel 200 through the second supporting member 510, and the second supporting member 510 is made of a flexible material such as foam or rubber, so that the first back plate 320 supports the display panel 200 and prevents the display panel 200 from being damaged.
A third supporting member 520 is further disposed between the second protruding portion 324 of the first back plate 320 and the optical assembly 310, the third supporting member 520 is made of a flexible material such as foam or rubber, and the third supporting member 520 supports the optical assembly 310 and prevents the first reflective sheet 313 from being scratched. The third supporting member 520 may fill the entire space between the second protruding portion 324 and the optical component 310, or may be disposed only at the edge of the optical component 310.
In addition, a light blocking plate 314 is further disposed on the side surface of the light guide plate 312, and the light blocking plate 314 is disposed between the light guide plate 312 and the bent portion 325 of the first back plate 320 and attached to the side surface of the light guide plate 312, so that light is integrally emitted toward the front surface of the light guide plate 312.
In fig. 1 to 4, the top of the side plate 332 of the second back plate 330 is smooth, and the side plate 332 can be bent to form a first side plate 3321 and a second side plate 3322 connected by bending the side plate 332, wherein the first side plate 3321 is connected to the bottom plate 331 of the second back plate 330, and the second side plate 3322 is formed by bending the top of the side plate 332 towards the bottom plate 331 by 180 °; the top of the side plate 332 is formed into a smooth round angle to prevent scratches. And the top of the second side plate 3322 is abutted to the heat dissipation plate 390, and the side of the second side plate 3322 is also attached to the display panel 200 and the optical assembly 310, so that the effect of stability can be achieved without additionally filling other structures in the second back plate 330 and the display assembly, and the external environment is prevented from observing the internal structure of the display device 100, thereby achieving the effect of beauty.
As shown in fig. 5, as another embodiment of the present application, the present application further discloses a backlight module 300 in the display device 100, where the backlight module 300 includes an optical assembly 310, a first back plate 320 and a second back plate 330, the first back plate 320 is disposed at the bottom of the optical assembly 310 and is attached to the optical assembly 310; the second back plate 330 includes a bottom plate 331 and a side plate 332, the bottom plate 331 is disposed on a side of the first back plate 320 away from the optical component 310, and the bottom plate 331 partially adheres to the first back plate 320; the side plate 332 is connected to the bottom plate 331 and surrounds the optical assembly 310; the first end 321 of the first back plate protrudes toward the bottom plate 331 to form a first protruding portion 322, and a first cavity 341 is formed between the first protruding portion 322 and the bottom plate 331.
By adopting the backlight module 300 in the embodiment, not only the first cavity 341 is present to accommodate the control component in the display device 100, so as to reduce the frame, but also the first back plate 320 in the backlight module 300 supports the display component in the display device 100, and a cavity is present between the second back plate 330 and the first back plate 320, so that when the second back plate 330 is impacted or shaken, the cavity structure can buffer the first back plate 320 and the display component connected with the first back plate 320; the second back plate 330 is an integral structure, and can surround the bottom and the periphery of the display module at the same time, and does not need to be spliced with other structures, so that the exterior of the display device 100 has a good aesthetic effect.
The first, second and third ends of the various structures set forth in this application are not actually first, second and third in the sense that only the different ends of the same structure are distinguished herein.
The technical solution of the present application can be widely applied to various display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, MVA (Multi-Domain Vertical Alignment) display panel, and of course, other types of display panels, such as OLED (Organic Light-Emitting Diode) display panel, and the above solution can be applied thereto.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (9)
1. The utility model provides a display device, includes display panel, backlight unit and display control subassembly, its characterized in that, backlight unit includes:
the optical assembly is arranged at the bottom of the display panel and comprises an optical film, a light guide plate and a first reflector plate which are sequentially stacked along a direction departing from the display panel;
the first back plate is arranged at the bottom of the optical assembly, is attached to the first reflector plate and supports the display panel and the optical assembly; and
the second back plate comprises a bottom plate and side plates, the bottom plate is arranged on one side, far away from the optical assembly, of the first back plate, and the bottom plate is attached to the first back plate part; the side plate is connected with the bottom plate, and surrounds the display panel and the optical assembly;
a cavity is formed between the first back plate and the second back plate, the first back plate and the second back plate are of an integrally formed structure, a first end of the first back plate protrudes towards the bottom plate to form a first outer protruding portion, a second end of the first back plate protrudes towards the bottom plate to form a second outer protruding portion, a first cavity is formed between the first outer protruding portion and the bottom plate, and the second outer protruding portion is attached to the bottom plate; the display control assembly is arranged in the first cavity and is communicated with the display panel.
2. The display device as claimed in claim 1, wherein a second cavity is formed between the first protrusion and the first reflector, and the backlight module further comprises:
the first bracket is L-shaped, the first end of the first bracket is arranged in the second cavity, and the second end of the first bracket extends towards the display panel and protrudes out of the optical assembly;
the light source assembly is fixed at the second end of the first bracket and is arranged towards the optical assembly; and
the second bracket is U-shaped, the first end of the second bracket is arranged between the first end of the first bracket and the first back plate, the second end of the second bracket is attached to the second end of the first bracket, and the third end of the second bracket is arranged at the top of the light source assembly, is abutted against the display panel and simultaneously covers the light source assembly; the second support is made of a light-tight material.
3. The display device as claimed in claim 2, wherein the backlight module further comprises a second reflector plate fixed at the third end of the second bracket and disposed toward the light source assembly.
4. The display device according to claim 2, wherein the first outward protruding portion of the first back plate, the second bracket and the first bracket are provided with corresponding threaded holes, and the first outward protruding portion of the first back plate, the second bracket and the first bracket are fixed by screws;
the backlight module comprises a first supporting piece, wherein the first supporting piece is arranged between the first end of the first support and the first reflector plate, and the first supporting piece covers the threaded hole of the first support.
5. The display device according to claim 1, wherein the display control assembly is in communication with the display panel through a chip on film, the chip on film having a driving chip thereon, the driving chip facing the side plate of the second backplane;
the backlight module comprises a heat dissipation plate, and the heat dissipation plate is fixed on the side plate and attached to the driving chip.
6. The display device according to claim 5, wherein the portion of the flip-chip film connected to the display panel is located in a bonding area, and the flip-chip film is connected to a side of the display panel facing the optical assembly; the display panel includes a light-shielding layer covering the bonding region.
7. The display device according to claim 5, wherein the side plates of the second rear plate include a first side plate and a second side plate which are connected, the first side plate is connected with the bottom plate of the second rear plate, the second side plate is formed by bending a top portion of the side plate 180 ° toward the bottom plate, and the top portion of the second side plate abuts against the heat dissipation plate.
8. The display device according to any one of claims 1 to 7, wherein the backlight module comprises a second supporting member and a third supporting member, the second end of the first back plate abuts against the display panel through the second supporting member, and the second outward protruding portion abuts against the optical assembly through the third supporting member;
the second supporting piece and the third supporting piece are made of foam or rubber.
9. A backlight module as claimed in any one of claims 1 to 8, wherein the backlight module comprises:
an optical component;
the first back plate is arranged at the bottom of the optical component and is attached to the optical component; and
the second back plate comprises a bottom plate and side plates, the bottom plate is arranged on one side, far away from the optical assembly, of the first back plate, and the bottom plate is attached to the first back plate part; the side plate is connected with the bottom plate and surrounds the optical assembly;
the first end of the first back plate protrudes towards the bottom plate to form a first outer protruding portion, and a first cavity is formed between the first outer protruding portion and the bottom plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110142973.9A CN112965291B (en) | 2021-02-02 | 2021-02-02 | Display device and backlight module thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110142973.9A CN112965291B (en) | 2021-02-02 | 2021-02-02 | Display device and backlight module thereof |
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| CN112965291A CN112965291A (en) | 2021-06-15 |
| CN112965291B true CN112965291B (en) | 2021-12-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113031328B (en) * | 2021-03-01 | 2022-08-05 | 惠州市华星光电技术有限公司 | Display device |
| CN114859599A (en) * | 2022-04-27 | 2022-08-05 | 京东方科技集团股份有限公司 | Display module and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100473227B1 (en) * | 2000-02-24 | 2005-03-07 | 엘지.필립스 엘시디 주식회사 | Structure of Preventing Wrinkle of a Reflective Sheet of Backlight Unit |
| KR102404722B1 (en) * | 2015-02-02 | 2022-06-02 | 삼성디스플레이 주식회사 | Liquid crystal display device |
| JP6689731B2 (en) * | 2016-11-28 | 2020-04-28 | 株式会社ジャパンディスプレイ | Backlight device and liquid crystal display device including the same |
| CN106647027B (en) * | 2016-12-20 | 2019-09-10 | 深圳市华星光电技术有限公司 | A kind of backlight module and liquid crystal display die set |
| CN106444161A (en) * | 2016-12-21 | 2017-02-22 | 深圳Tcl新技术有限公司 | Liquid crystal display device |
| CN108254972B (en) * | 2018-01-31 | 2020-07-03 | Oppo广东移动通信有限公司 | Backlight module, electronic device and installation method of backlight module |
| KR102494868B1 (en) * | 2018-05-18 | 2023-02-02 | 삼성디스플레이 주식회사 | Display device |
| CN209591364U (en) * | 2018-11-06 | 2019-11-05 | 惠科股份有限公司 | A kind of backlight module and display device |
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