CN210514873U - Optical film positioning device and backlight module - Google Patents

Abstract

The utility model discloses an optical diaphragm positioning device and backlight module, optical diaphragm positioning device, including location structure, mixed light structure, LED lamp plate and third diaphragm, the location structure is used for fixing mixed light structure and LED lamp plate each other; the backlight module comprises the optical film positioning device. This kind of optics diaphragm positioner and backlight unit carry out fixed bonding with mixing light structure and LED lamp plate through location structure, realize mixing light structure and the LED on the lamp plate or LED chip position correspond, avoid the two to appear the positional deviation removal, make even mixed light effect remain stable, effectively promote the stability of product performance, thoroughly solve the location problem of mixing light structure and mix light effect stability problem.

Description

Optical film positioning device and backlight module

Technical Field

The utility model relates to an optics diaphragm positioner and backlight unit.

Background

The prior liquid crystal display device is required to be provided with a backlight module, and the backlight module is used for generating a surface light source. The light generated by the surface light source enters from one side of the liquid crystal panel and presents an image on the display side of the liquid crystal panel through the action of liquid crystal molecules, color filters and other related elements. The optical quality of the surface light source generated by the backlight module, including brightness and light uniformity, has a significant and direct effect on the image displayed by the liquid crystal panel.

The existing miniLED backlight adopts a bottom light emitting mode, a light mixing structure is adopted to realize uniform light mixing in order to realize a better light mixing effect, but the light mixing structure consists of multilayer optical films, and the multilayer optical films are easy to shift when being placed on an LED lamp panel to assemble products, so that the light mixing structure is poor in dislocation, the optical quality of the backlight product such as brightness and uniformity is poor, and the image quality of a liquid crystal panel is poor.

The above-mentioned drawbacks severely limit the further development and popularization of the field.

In view of the above, the present invention provides a new technical solution to solve the existing technical drawbacks.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides an optics diaphragm positioner and backlight unit has solved and has appeared shifting easily in the product mixed light structure and lead to product display performance not good, produce technical defect such as property unstability.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides an optics diaphragm positioner, includes location structure, mixed light structure, LED lamp plate and third diaphragm, location structure is used for mixing light structure and LED lamp plate reciprocal anchorage.

As an improvement of the above technical scheme, the light mixing structure is a light mixing film, a light mixing composite film or a light mixing combination structure formed by overlapping the light mixing film and the light mixing composite film.

As a further improvement of the technical scheme, the LED lamp panel is a MiniLED lamp panel and comprises a plurality of light-emitting LEDs, a circuit board and packaging glue, wherein the light-emitting LEDs comprise a plurality of LEDs or LED chips which are perpendicular to the circuit board and are smoothly assembled from the front side to the top side.

As a further improvement of the above technical solution, the positioning structure is located between the light mixing structure and the LED lamp panel, and the light mixing structure is arranged above the LED or the LED chip and corresponds to the LED or the LED chip.

As an implementation scheme of the above technical scheme, one side of the light mixing structure is fixedly connected with the LED lamp panel through the positioning structure, and the third diaphragm is arranged on the other side of the light mixing structure.

As another implementation scheme of the above technical scheme, one side of the light mixing structure is fixedly connected with the LED lamp panel through the positioning structure and the third diaphragm, the third diaphragm is arranged on the other side of the light mixing structure, and the number of the third diaphragms between the light mixing structure and the LED lamp panel is less than or equal to 2.

As a further improvement of the technical scheme, the size of the positioning structure is not larger than the sizes of the diaphragm and the LED lamp panel, and the thickness of the positioning structure is not more than 0.2 mm; the positioning structure is an adhesive; the adhesive is one or more of silica gel, epoxy resin, acrylic adhesive, acrylic structural adhesive and double-sided adhesive.

As a further improvement of the above technical solution, the third film is an optical film used in a backlight, and includes one or more of a reflective film, an antireflection film, a polarizing film, a compensation film, an alignment film, a diffusion film, a brightness enhancement film, a light shielding film, a light conversion film, and a composite film having two or more of the above functions.

Based on foretell optics diaphragm positioner, the utility model also provides a backlight unit, it includes foretell optics diaphragm positioner.

The utility model has the advantages that: the utility model provides an optics diaphragm positioner and backlight unit, this kind of optics diaphragm positioner and backlight unit adopt location structure to carry out direct or indirect fixed connection with LED lamp plate with mixed light structure, mix the light structure positional deviation or remove can not appear in the use, make even mixed light effect remain stable, effectively promote the optical property stability of backlight product, thoroughly solve mixed light structure's location problem and mixed light effect stability problem, ensure that liquid crystal display panel's display image quality is good.

In a word, this kind of optical film positioner and backlight unit have solved mix light structure and have appeared shifting easily and lead to product display performance not good, technical defect such as product performance unstability among the product.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 3 is a schematic structural diagram of embodiment 3 of the present invention.

1. A positioning structure; 2. a light mixing structure; 3. an LED lamp panel; 31. a light emitting chip; 32. a circuit board; 33. packaging glue; 4. a third diaphragm.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The technical features of the present invention can be combined interactively without conflicting with each other, as shown in fig. 1-3.

Embodiment 1, specifically refer to fig. 1, the utility model provides an optical diaphragm positioning device, the optical diaphragm positioning device includes location structure 1, mixed light structure 2, LED lamp plate 3 and third diaphragm 4, location structure 1 is used for fixing mixed light structure 2 and LED lamp plate 3 each other, wherein, mixed light structure 2 and third diaphragm 4 are the diaphragms, the size of location structure 1 is not more than diaphragm and LED lamp plate size, thickness is less than or equal to 0.2 mm; the positioning structure 1 is an adhesive; the adhesive is one or more of silica gel, epoxy resin, acrylic adhesive, acrylic structural adhesive and double-sided adhesive; the light mixing structure 2 is a light mixing composite structure formed by a light mixing film, a light mixing composite film or a superposition of the light mixing film and the light mixing composite film; LED lamp plate 3 is the MiniLED lamp plate, and it includes luminous LED31, circuit board 32 and packaging adhesive 33, luminous LED31 includes a plurality of perpendicular to circuit board 32 and openly upwards levels the LED or the LED chip of assembly. The light mixing structure 2 is a light mixing composite structure consisting of a light mixing film, a light mixing composite film or the light mixing film and the light mixing composite film; the third film 4 is an optical film used in backlight, and includes one or more of a reflective film, an antireflection film, a polarizing film, a compensation film, an alignment film, a diffusion film, a brightness enhancement film, a light shielding film, a light conversion film, and a composite film having two or more of the above functions.

The shape of the positioning structure 1 is any shape including, but not limited to, a stripe, a square, a circle, a ring, or various patterns. The length is less than or equal to the length of the membrane, the number of the membrane is one or more,

in this embodiment, mix the one side of light structure 2 and pass through location structure 1 and LED lamp plate 3 fixed connection, third diaphragm 4 sets up the another side at mixed light structure 2.

Specifically, LED lamp plate 3 is installed in the bottom, and LED lamp plate 3 bonds light mixing structure 2 in its upper portion through location structure 1, and the upper portion of light mixing structure 2 is provided with multi-disc third diaphragm 4.

Based on foretell optics diaphragm positioner, the utility model also provides a backlight unit, backlight unit includes foretell optics diaphragm positioner, puts the actual implementation in-process, still includes outlying fixed part such as frame.

In addition, based on backlight unit, can also provide display screen, display device etc. based on this kind of backlight unit, its core lies in carrying out fixed connection with mixed light structure 2 and LED lamp plate 3 for mutual position can not appear between two parts, has promoted the stability of performance and user's use and has experienced, the life of product is longer, market competition is better.

Embodiment 2, specifically referring to fig. 2, this embodiment is basically the same as embodiment 1, and its difference is: mix light structure 2's one side through location structure 1 and third diaphragm 4 and LED lamp plate 3 fixed connection, mix light structure 2's another side and be provided with third diaphragm 4, the quantity that is located the third diaphragm 4 between mixed light structure 2 and the LED lamp plate 3 is less than or equal to 2.

Specifically, there is third diaphragm 4 above LED lamp plate 3 through location structure 1 bonding, and there is mixed light structure 2 this third diaphragm 4 top through location structure 1 bonding, and the top of mixing light structure 2 is provided with a plurality of other third diaphragms 4, in this embodiment, has a slice third diaphragm 4 between mixed light structure 2 and the LED lamp plate 3, mixes light structure 2 and LED lamp plate 3 through indirect mode reciprocal anchorage who bonds.

Embodiment 3, specifically referring to fig. 3, this embodiment is basically the same as embodiment 2, and its difference is: in this embodiment, two third diaphragms 4 are provided between the light mixing structure 2 and the LED lamp panel 3.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims (10)

1. An optical film positioning device, comprising: including location structure (1), mixed light structure (2), LED lamp plate (3) and third diaphragm (4), location structure (1) is used for mixing light structure (2) and LED lamp plate (3) reciprocal anchorage.

2. An optical film positioning device as defined in claim 1, wherein: the light mixing structure (2) is a light mixing composite structure formed by a light mixing film, a light mixing composite film or a superposition of the light mixing film and the light mixing composite film.

3. An optical film positioning device as defined in claim 1, wherein: LED lamp plate (3) are MiniLED lamp plate, and it is glued (33) including luminous LED (31), circuit board (32) and encapsulation, luminous LED (31) include many perpendicular to circuit board (32) and openly level up the LED or the LED chip of assembly.

4. An optical film positioning device as defined in claim 3, wherein: the LED lamp panel is characterized in that the positioning structure (1) is located between the light mixing structure (2) and the LED lamp panel (3), and the light mixing structure is arranged above the LED or the LED chip and corresponds to the LED or the LED chip.

5. An optical film positioning device as defined in claim 1, wherein: mix the one side of light structure (2) and pass through location structure (1) and LED lamp plate (3) fixed connection, third diaphragm (4) set up the another side at mixed light structure (2).

6. An optical film positioning device as defined in claim 1, wherein: mix the one side of light structure (2) and pass through location structure (1) and third diaphragm (4) and LED lamp plate (3) fixed connection, mix the another side of light structure (2) and be provided with third diaphragm (4), the quantity that is located third diaphragm (4) between mixed light structure (2) and LED lamp plate (3) is less than or equal to 2.

7. An optical film positioning device as defined in claim 1, wherein: the positioning structure (1) is an adhesive, and is one of silica gel, epoxy resin, acrylic adhesive, acrylic structural adhesive, OCA optical adhesive and solid double-sided adhesive.

8. An optical film positioning device as defined in claim 7, wherein: the positioning structure (1) can be in any shape; the size of the positioning structure (1) is not larger than the sizes of the diaphragm and the LED lamp panel, and the thickness of the positioning structure is not larger than 0.2 mm.

9. An optical film positioning device as defined in claim 1, wherein: the third film (4) is an optical film used in backlight, and comprises one or more of a reflecting film, an antireflection film, a polarizing film, a compensation film, an alignment film, a diffusion film, a brightness enhancement film, a shading film and light conversion, or a composite film formed by two or more of the films.

10. A backlight module is characterized in that: comprising an optical film positioning device according to any of claims 1-9.

Images