CN220419753U

CN220419753U - Display screen adopting bending backlight FPC

Info

Publication number: CN220419753U
Application number: CN202322152180.2U
Authority: CN
Inventors: 庄少校; 杨磊; 黄芬; 樊劼
Original assignee: Truly Opto Electronics Ltd
Current assignee: Truly Opto Electronics Ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-01-30
Anticipated expiration: 2033-08-10

Abstract

The utility model discloses a display screen adopting a bending backlight FPC, which is characterized in that: the backlight module comprises a backlight module, TFT glass, a main FPC and a backlight FPC, wherein the TFT glass is arranged on the front face of the backlight module, the main FPC is connected with the bottom of the TFT glass, one end of the backlight FPC is connected with the main FPC, the other end of the backlight FPC is connected with the back face of the backlight module, the backlight FPC adopts an S-shaped structure, and a plurality of bending parts are arranged on the backlight FPC. According to the utility model, the backlight FPC adopts a bending design, and the backlight FPC of the display screen needs to be bent and attached to the back surface of the backlight module after being welded to the main FPC, and the bending design of the backlight FPC can improve the softness of the backlight FPC, so that the bending of the FPC is more flexible and the pulling is avoided.

Description

Display screen adopting bending backlight FPC

Technical Field

The utility model relates to the technical field of backlight sources, in particular to a display screen adopting a bending backlight FPC.

Background

In recent years, LEDs have been widely used in the field of illumination due to their advantages such as no pollution, good color rendering, and energy saving, and LEDs have gradually replaced cold cathode fluorescent lamps as the main backlight source of liquid crystal display panels in the field of applications of display devices such as liquid crystal televisions and notebook computer monitors.

Generally, backlight modules are divided according to the distribution positions of light sources, and there are side-light type and bottom-backlight type. The side light type LED light source is arranged on a backlight source made of the side edge of a specially designed light guide plate, the LED light source is connected with a main FPC (flexible circuit board) through the backlight FPC, and the backlight FPC of a display screen is required to be attached to the back of a backlight module after being welded on the main FPC.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art and providing a display screen adopting a bending backlight FPC.

In order to solve the technical problems, the utility model provides the following technical scheme:

a display screen employing a curved backlight FPC, characterized in that: the backlight module comprises a backlight module, TFT glass, a main FPC and a backlight FPC, wherein the TFT glass is arranged on the front face of the backlight module, the main FPC is connected with the bottom of the TFT glass, one end of the backlight FPC is connected with the main FPC, the other end of the backlight FPC is connected with the back face of the backlight module, the backlight FPC adopts an S-shaped structure, and a plurality of bending parts are arranged on the backlight FPC.

Further, the main FPC and the backlight FPC are connected to each other by a solder portion.

Further, the main FPC and the backlight FPC are connected with each other through three welding points of the welding part.

Further, the welding part is welded by tin-lead alloy.

Further, at least two bending parts are arranged on the backlight FPC.

Further, the backlight module comprises an LED lamp, a bottom frame and a light guide plate, wherein the LED lamp is fixedly connected to the inner side of the edge of the bottom frame, the light guide plate is fixedly connected to the bottom frame, the TFT glass is arranged corresponding to the front surface of the light guide plate, and the backlight FPC is connected with the LED lamp.

Further, the backlight module further comprises a reflecting sheet, and the reflecting sheet is fixedly connected to one end, close to the LED lamp, of the light guide plate.

Furthermore, the reflecting sheet and the light guide plate are connected by double-sided adhesive tape.

Further, a film material is arranged on the surface of the light guide plate.

Further, the bottom frame is made of metal.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the backlight FPC adopts a bending design, because the backlight FPC of the display screen is required to be bent and attached to the back surface of the backlight module after being welded to the main FPC, and the bending design of the bent backlight FPC can improve the softness of the backlight FPC, so that the bending of the FPC is more flexible, the bending is avoided, when the wire outlet end of the main FPC is pulled and stressed, the bending part of the backlight FPC is stressed and deformed slightly to two sides so as to generate certain deformation, the whole tension transmitted from the wire outlet end of the main FPC can be relieved and acted on the welding point, the damage probability of the welding point can be reduced, and good connection between the backlight FPC and the main FPC and between the backlight FPC and the backlight module is ensured.

Drawings

FIG. 1 is a front view of a structure of an embodiment of the present utility model;

FIG. 2 is a side cross-sectional view of a backlight module according to an embodiment of the present utility model;

wherein: 1-backlight module, 2-TFT glass, 3-main FPC, 4-backlight FPC, 5-welding part, 6-LED lamp, 7-bottom frame, 8-light guide plate, 9-reflector plate and 10-membrane material.

Detailed Description

In order to enhance the understanding of the present utility model, the present utility model will be further described in detail with reference to the drawings, which are provided for the purpose of illustrating the present utility model only and are not to be construed as limiting the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, or can be communicated between two elements or the interaction relationship between the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Fig. 1 shows a specific embodiment of a display screen adopting a bending backlight FPC, which comprises a backlight module 1, TFT glass 2, a main FPC3 and a backlight FPC4, wherein the TFT glass 2 is arranged on the front surface of the backlight module 1, the main FPC3 is connected with the bottom of the TFT glass 2, one end of the backlight FPC4 is connected with the main FPC3, the other end is connected with the back surface of the backlight module 1, and the backlight FPC4 adopts an S-shaped structure and comprises at least two bending parts.

Preferably, the main FPC3 and the backlight FPC4 are connected to each other by three welding points of the welding portion 5, and the welding mode adopts tin-lead alloy welding.

As shown in fig. 2, the backlight module 1 includes an LED lamp 6, a bottom frame 7, a light guide plate 8, and a reflective sheet 9, where the LED lamp 6 is fixedly connected to the inner side of the edge of the bottom frame 7, the light guide plate 8 is fixedly connected to the bottom frame 7, the TFT glass 2 is disposed corresponding to the front surface of the light guide plate 8, and the backlight FPC4 is connected to the LED lamp 6. The reflector plate 9 is fixedly connected to one end, close to the LED lamp 6, of the light guide plate 8, so that the light utilization rate is improved, and the backlight brightness is improved. The reflecting sheet 9 and the light guide plate 8 are connected by double-sided adhesive tape. The surface of the light guide plate 8 is provided with a film material 10. The bottom frame 7 is made of metal.

The foregoing detailed description will set forth only for the purposes of illustrating the general principles and features of the utility model, and is not meant to limit the scope of the utility model in any way, but rather should be construed in view of the appended claims.

Claims

1. A display screen employing a curved backlight FPC, characterized in that: including backlight unit (1), TFT glass (2), main FPC (3), backlight FPC (4), TFT glass (2) set up the front of backlight unit (1), main FPC (3) connect TFT glass (2) bottom, main FPC (3) are connected to the one end of backlight FPC (4), and the back of backlight unit (1) is connected to the other end, backlight FPC (4) adopts S-shaped structure, includes a plurality of bending parts on it.

2. A display screen employing a curved backlight FPC as claimed in claim 1, wherein: the main FPC (3) and the backlight FPC (4) are connected with each other through a welding part (5).

3. A display screen employing a curved backlight FPC as claimed in claim 2, wherein: the main FPC (3) and the backlight FPC (4) are connected with each other through three welding points of the welding part (5).

4. A display screen employing a curved backlight FPC as claimed in claim 3, wherein: the welding part (5) adopts tin-lead alloy welding.

5. A display screen employing a curved backlight FPC as claimed in claim 1, wherein: at least two bending parts are arranged on the backlight FPC (4).

6. A display screen employing a curved backlight FPC as claimed in claim 1, wherein: the backlight module (1) comprises an LED lamp (6), a bottom frame (7) and a light guide plate (8), wherein the LED lamp (6) is fixedly connected to the inner side of the edge of the bottom frame (7), the light guide plate (8) is fixedly connected to the bottom frame (7), the TFT glass (2) is arranged on the front face of the light guide plate (8) corresponding to the TFT glass, and the backlight FPC (4) is connected with the LED lamp (6).

7. A display screen employing a curved backlight FPC as claimed in claim 6, wherein: the backlight module (1) further comprises a reflecting sheet (9), and the reflecting sheet (9) is fixedly connected to one end, close to the LED lamp (6), of the light guide plate (8).

8. A display screen employing a curved backlight FPC as claimed in claim 7, wherein: the reflecting sheet (9) is connected with the light guide plate (8) by double-sided adhesive tape.

9. A display screen employing a curved backlight FPC as claimed in claim 6, wherein: the surface of the light guide plate (8) is provided with a film material (10).

10. A display screen employing a curved backlight FPC as claimed in claim 6, wherein: the bottom frame (7) is made of metal.