CN212255952U - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN212255952U CN212255952U CN202020021289.6U CN202020021289U CN212255952U CN 212255952 U CN212255952 U CN 212255952U CN 202020021289 U CN202020021289 U CN 202020021289U CN 212255952 U CN212255952 U CN 212255952U
- Authority
- CN
- China
- Prior art keywords
- backlight module
- light emitting
- outer frame
- emitting device
- guide plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The utility model provides a backlight module, liquid crystal display device, backlight module includes: the backlight module comprises an outer frame, a light guide plate, an optical film and a light emitting device; the backlight module is integrally fan-shaped; the light guide plate, the optical film and the light emitting device are arranged in the outer frame; the optical film is arranged above the light guide plate; the light emitting device is arranged at the center of the circle of the outer frame, and the light emitting surface of the light emitting device faces the side surface of the light guide plate; the utility model provides a backlight unit relates to sectorial backlight unit, and luminescent device sets up in sectorial centre of a circle department simultaneously for the angle that the light source light-emitting need cover reduces, can reduce the use quantity of LED chip, has promoted user experience.
Description
Technical Field
The utility model relates to a liquid crystal display technology field, more specifically say, relate to a backlight module, liquid crystal display device.
Background
Liquid crystal display devices have been widely used in the fields of vehicle instrument panels, mobile phones, personal computers, televisions, and the like because of their characteristics of low radiation, light weight, small size, low power consumption, and the like. Since the liquid crystal material in the liquid crystal display panel does not have the light emitting property, in order to achieve the display effect, a light source device needs to be provided for the liquid crystal display panel to achieve the display effect.
At present, a Light Emitting Diode (LED) is generally used as a light source, and the LED has the advantages of low power consumption and high brightness, but at present, a horizontally arranged LED chip is generally provided, so that a dark area phenomenon is easily generated at a corner, and meanwhile, if the LED chip is horizontally arranged, the number of the LED chips required is generally tens of LED chips in order to achieve a more uniform light source effect. Therefore, how to provide fewer LED chips and achieve a better light emitting effect is a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lie in that the light source that provides usually needs more LED chip among the current backlight unit, and the light-emitting effect is not good simultaneously, to this technical problem, provides a backlight unit, liquid crystal display device.
In order to solve the above technical problem, the utility model provides a backlight module, backlight module includes: the backlight module comprises an outer frame, a light guide plate, an optical film and a light emitting device;
the backlight module is integrally fan-shaped;
the light guide plate, the optical film and the light emitting device are arranged in the outer frame;
the optical film is arranged above the light guide plate;
the light emitting device is arranged at the circle center of the outer frame, and the light emitting surface of the light emitting device faces the side face of the light guide plate.
Optionally, the backlight module further includes a light shielding plate, and the light shielding plate covers a gap between the outer frame and the optical film.
Optionally, the outer frame includes a bottom surface and a sidewall disposed at an edge of the bottom surface, and the light emitting device includes: the LED lamp comprises a circuit board and an LED chip arranged on the circuit board, wherein the circuit board is fixed on the side wall of the circle center of the outer frame.
Optionally, the LED chip is a top-emitting LED chip or a side-emitting LED chip.
Optionally, the circuit board is a flexible circuit board fpc (flexible Printed circuit).
Optionally, the optical film material is a brightness enhancement film.
Optionally, the backlight module is a flat panel structure or an arc-shaped backlight module.
Optionally, the outer frame includes a rubber frame and a metal frame, the metal frame includes a bottom surface and a side wall, the rubber frame is assembled on the side wall of the metal frame, and the rubber frame is higher than the metal frame.
Optionally, the rubber frame and the metal frame are integrally formed.
Further, the utility model also provides a liquid crystal display device, liquid crystal display device includes foretell backlight unit.
The utility model has the advantages that:
the utility model provides a backlight module includes: the backlight module includes: the backlight module comprises an outer frame, a light guide plate, an optical film and a light emitting device; the backlight module is integrally fan-shaped; the light guide plate, the optical film and the light emitting device are arranged in the outer frame; the optical film is arranged above the light guide plate; the light emitting device is arranged at the center of the circle of the outer frame, and the light emitting surface of the light emitting device faces the side surface of the light guide plate; the utility model provides a backlight module relates to sectorial backlight unit, and luminescent device sets up in sectorial centre of a circle department simultaneously for the angle that the light source light-emitting need cover reduces, can reduce the use quantity of LED chip.
Other features and corresponding advantages of the invention are set forth in the following part of the specification, and it is to be understood that at least some of the advantages become apparent from the description of the invention.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic cross-sectional view of a backlight module according to a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of another backlight module according to a first embodiment of the present invention;
fig. 3 is a schematic top view of the outer frame, the light emitting device and the light guide plate of the backlight module according to the first embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of another backlight module according to a first embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of another backlight module according to a first embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of a cambered surface backlight module according to a first embodiment of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings by way of specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The first embodiment is as follows:
aiming at the problems that in the prior art, a light source provided in a backlight module usually needs more LED chips and has poor light emitting effect, the utility model provides a backlight module, wherein FIG. 1 is a schematic view of a section structure of the backlight module provided by the embodiment of the utility model, and FIG. 2 is a schematic view of a overlooking structure of an outer frame, a light emitting device and an outer frame of the backlight module provided by the embodiment of the utility model; as shown in fig. 1, the backlight module includes a frame 10, a light guide plate 20, an optical film 30 and a light emitting device 40; the backlight module is fan-shaped as a whole; the light guide plate 10, the optical film 30 and the light emitting device 40 are disposed in the outer frame; the optical film 30 is disposed above the light guide plate 10; the light emitting device 40 is disposed at the center of the outer frame, and a light emitting surface of the light emitting device faces a side surface of the light guide plate.
In this embodiment, the backlight module may further include: fig. 3 is a schematic cross-sectional view of another backlight module according to an embodiment of the present invention, as shown in fig. 3, the reflective film 60 is disposed on the bottom surface of the outer frame 10 in the outer frame 10, and the light shielding film 50 covers a gap between the optical film 30 and the outer frame 10.
Further, the outer frame includes a bottom surface and a sidewall provided at an edge of the bottom surface, wherein the light emitting device 40 includes: the LED lamp comprises a circuit board and an LED chip arranged on the circuit board, wherein the circuit board is fixed on the side wall of the circle center of the outer frame.
In the present embodiment, the LED chip is a top emission LED chip or a side emission LED chip.
Fig. 4 is a schematic cross-sectional view of another backlight module according to an embodiment of the present invention, and as shown in fig. 4, the light emitting device 40 includes: the circuit board 401 and the LED chip 402 of welding on the circuit board, wherein, LED chip 402 is the top emitting LED chip, is fixed in circuit board 401 because the centre of a circle department of fan-shaped frame, because this department is the arc, consequently circuit board 401 can adopt flexible circuit board FPC, laminates in the centre of a circle department of fan-shaped frame and fixes.
Fig. 5 is a schematic cross-sectional view of another backlight module according to an embodiment of the present invention, and as shown in fig. 5, the light emitting device 40 includes: the circuit board 401 and the LED chip 402 soldered on the circuit board, wherein if the LED chip is a side-emitting LED chip, the circuit board 401 is disposed on the light guide plate 20 and fixed at the center of the fan-shaped outer frame, and the circuit board may be a printed circuit board PCB.
In this embodiment, the backlight module may be an arc-shaped backlight module, or a planar structure, fig. 6 is a schematic view of a cross-sectional structure of the arc-shaped backlight module provided by the embodiment of the present invention, as shown in fig. 6, the whole backlight module is an arc.
In the present embodiment, the optical film material 30 may be a brightness enhancement film for improving light transmittance, and increasing brightness and viewing angle.
In this embodiment, as shown in fig. 1, the outer frame 10 may include a rubber frame 102 and a metal frame 101, the metal frame includes a bottom wall and a side wall, the rubber frame 102 is assembled on the side wall of the metal frame 101, and the rubber frame 102 is higher than the metal frame 101.
In the present embodiment, the rubber frame 102 and the metal frame 101 are integrally formed, and the rubber frame 102 and the metal frame 101 can be integrally formed by a metal and plastic integrated nano Molding technology nmt (nao Molding technology). It should be understood that, this embodiment is not limited to the integration of metal and plastic by using NMT technology, as long as the integration effect is achieved; it should be understood that the rubber frame 102 and the metal frame 101 may be formed in a non-integral manner.
The utility model provides a backlight module includes: the backlight module includes: the backlight module comprises an outer frame, a light guide plate, an optical film and a light emitting device; the backlight module is integrally fan-shaped; the light guide plate, the optical film and the light emitting device are arranged in the outer frame; the optical film is arranged above the light guide plate; the light emitting device is arranged at the center of the circle of the outer frame, and the light emitting surface of the light emitting device faces the side surface of the light guide plate; the utility model provides a backlight module relates to sectorial backlight unit, and luminescent device sets up in sectorial centre of a circle department simultaneously for the angle that the light source light-emitting need cover reduces, can reduce the use quantity of LED chip.
Example two:
in order to make the advantages and details of the metal frame of the backlight module described in the foregoing embodiments clearer, the present embodiment will be further described with reference to specific examples.
The utility model provides a backlight module includes: the backlight module comprises an outer frame, a light guide plate, an optical film and a light emitting device; the backlight module is fan-shaped as a whole; the light guide plate, the optical film and the light-emitting device are arranged in the outer frame; the optical film is arranged above the light guide plate; the light emitting device is arranged at the center of the circle of the outer frame, and the light emitting surface of the light emitting device faces the side face of the light guide plate.
In this embodiment, the backlight module further includes a light shielding plate covering a gap between the outer frame and the optical film.
Preferably, in this embodiment, the center of the light guide plate is a tangent plane, that is, the side of the light guide plate facing the light emitting device is a plane, and is not an arc.
In this embodiment, the outer frame includes a bottom surface and a sidewall provided at an edge of the bottom surface, and the light emitting device includes: the circuit board is fixed on the side wall at the circle center of the outer frame.
The LED chip is a top light-emitting LED chip, and the circuit board is a flexible circuit board FPC; the backlight module is an arc-shaped backlight module; the optical film material is a brightness enhancement film.
In this embodiment, the outer frame includes a rubber frame and a metal frame, the metal frame includes a bottom wall and a side wall, the rubber frame is assembled on the side wall of the metal frame, the rubber frame is higher than the metal frame, and the rubber frame and the metal frame are integrally formed;
the utility model provides a backlight module includes: the backlight module includes: the backlight module comprises an outer frame, a light guide plate, an optical film and a light emitting device; the backlight module is integrally fan-shaped; the light guide plate, the optical film and the light emitting device are arranged in the outer frame; the optical film is arranged above the light guide plate; the light emitting device is arranged at the center of the circle of the outer frame, and the light emitting surface of the light emitting device faces the side surface of the light guide plate; the utility model provides a backlight module relates to sectorial backlight unit, and luminescent device sets up in sectorial centre of a circle department simultaneously for the angle that the light source light-emitting need cover reduces, can reduce the use quantity of LED chip.
Example three:
the embodiment provides a liquid crystal display device comprising the backlight module according to any one of the first embodiment and the second embodiment.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (10)
1. A backlight module is characterized in that the backlight module comprises: the backlight module comprises an outer frame, a light guide plate, an optical film and a light emitting device;
the backlight module is integrally fan-shaped;
the light guide plate, the optical film and the light emitting device are arranged in the outer frame;
the optical film is arranged above the light guide plate;
the light emitting device is arranged at the circle center of the outer frame, and the light emitting surface of the light emitting device faces the side face of the light guide plate.
2. The backlight module as claimed in claim 1, wherein the backlight module further comprises a light shielding plate covering a gap between the outer frame and the optical film.
3. The backlight module according to claim 1, wherein the outer frame comprises a bottom surface and a sidewall disposed at an edge of the bottom surface, and the light emitting device comprises: the LED lamp comprises a circuit board and an LED chip arranged on the circuit board, wherein the circuit board is fixed on the side wall of the circle center of the outer frame.
4. The backlight module of claim 3, wherein the LED chips are top-emitting LED chips or side-emitting LED chips.
5. The backlight module as claimed in claim 3, wherein the circuit board is a flexible circuit board FPC.
6. The backlight module as claimed in claim 1, wherein the optical film is a brightness enhancement film.
7. The backlight module of claim 1, wherein the backlight module is a flat panel structure or an arc backlight module.
8. The backlight module according to any of claims 1-7, wherein the outer frame comprises a rubber frame and a metal frame, the metal frame comprises a bottom surface and a side wall, the rubber frame is assembled on the side wall of the metal frame, and the rubber frame is higher than the metal frame.
9. The backlight module as claimed in claim 8, wherein the rubber frame and the metal frame are integrally formed.
10. A liquid crystal display device, characterized in that the liquid crystal display device comprises a backlight module according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020021289.6U CN212255952U (en) | 2020-01-06 | 2020-01-06 | Backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020021289.6U CN212255952U (en) | 2020-01-06 | 2020-01-06 | Backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212255952U true CN212255952U (en) | 2020-12-29 |
Family
ID=73988827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020021289.6U Active CN212255952U (en) | 2020-01-06 | 2020-01-06 | Backlight module and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212255952U (en) |
-
2020
- 2020-01-06 CN CN202020021289.6U patent/CN212255952U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8681292B2 (en) | Liquid crystal display device | |
| US7113236B2 (en) | Liquid crystal display housing with LEDs formed below the lower surface of the extending FPCB inset into openings of the housing | |
| US7609334B2 (en) | Receiving container, display device having the same and a method thereof | |
| US8157430B2 (en) | Backlight device and planar display device using the same | |
| KR101671182B1 (en) | A backlight unit and an lcd module having the same | |
| US8506151B2 (en) | Backlight unit | |
| RU2491472C1 (en) | Illumination device and display device | |
| US8662730B2 (en) | Display apparatus and method of assembling the same | |
| EP2913706A1 (en) | Liquid crystal display device | |
| KR101621535B1 (en) | Backlight unit and liquid crystal display device having the same | |
| US20120169963A1 (en) | Liquid crystal display apparatus | |
| US20080297697A1 (en) | Light guide plate, backlight assembly including the same, and liquid crystal display device including the same | |
| JP2013041817A (en) | Backlight assembly and display device including the same | |
| US20150268410A1 (en) | Liquid crystal display device | |
| US8602626B2 (en) | LED light source module and display apparatus including the same | |
| KR20170013696A (en) | Light-Diffusing Lens and Backlight Unit and Display Device having the same | |
| KR20150077153A (en) | Light source module and backlight unit having the same | |
| CN108732802B (en) | Display device | |
| EP2530375A1 (en) | Light guide design for edge-illumination in a backlight unit | |
| CN106842713B (en) | Backlight module and electronic device | |
| US8794778B2 (en) | Top chassis assembly and display device having the same | |
| US20100279742A1 (en) | Electronic device | |
| US20110043724A1 (en) | Backlight unit and display device using the same | |
| CN212255952U (en) | Backlight module and liquid crystal display device | |
| US8858052B2 (en) | Backlight module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |