CN217562212U

CN217562212U - Thin film LED display screen

Info

Publication number: CN217562212U
Application number: CN202221530559.1U
Authority: CN
Inventors: 童小雄
Original assignee: Guangdong Leiyi Optoelectronics Technology Co ltd
Current assignee: Guangdong Leiyi Optoelectronics Technology Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-10-11
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses a thin film LED display screen, a plurality of through-holes have been seted up to its film basement, interconnecting link has the link that extends to through-hole department, the PCB board sets up in the one side that the film basement deviates from interconnecting link, the protruding a plurality of electrically conductive archs that correspond a plurality of through-holes respectively that are equipped with of PCB board, each electrically conductive arch is worn to establish at a through-hole, and with the link welded connection who corresponds, with the electric connection link, can realize that PCB board and interconnecting link's stable electricity is connected, and then can realize that LED light-emitting element is connected with the stable electricity of PCB board. Meanwhile, the PCB board can be stably fixed on the film substrate. In addition, the PCB and the film substrate are integrated, so that the occupied space is small, and meanwhile, the manufacturing process is simpler because the FPC flat cable does not need to be connected.

Description

Thin film LED display screen

Technical Field

The utility model relates to a LED display screen technical field especially relates to a film LED display screen.

Background

The LED display screen is a display product which emits light by controlling the light emitting diodes, and is widely applied to the fields of outdoor advertisements, captions, stage background effects and the like because of the characteristics of high luminous efficiency, long service life, safety, reliability, environmental protection, energy conservation and the like.

The thin film LED display screen is a flexible display screen, can be bent or combined into different shapes according to different purposes, and has the characteristics of light weight, thinness, transparency and the like. In the prior art, the electrical connection between the light emitting unit 3 'of the thin film LED display 100' and the PCB 4 'is realized by the FPC cable 7', as shown in fig. 1. There are problems that poor contact is liable to occur at the time of bonding and that a portion is not conductive.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a film LED display screen that PCB board and film basement are stably connected.

In order to realize the above object, the utility model provides a film LED display screen, including film basement, interconnecting link, a plurality of LED luminescence unit and PCB board, a plurality of through-holes have been seted up to the film basement, interconnecting link forms in the film basement, interconnecting link has and extends to the link of through-hole department, a plurality of LED luminescence unit locate in the film basement, just a plurality of LED luminescence unit's electrode with the interconnecting link electricity is connected, the PCB board sets up the film basement deviates from in the one side of interconnecting link, the protruding being equipped with of PCB board corresponds respectively a plurality of electrically conductive archs of a plurality of through-holes, each electrically conductive arch is worn to establish one the through-hole, and with corresponding link welded connection connects with the electricity the link.

Preferably, the height of the conductive bump is greater than the thickness of the film substrate.

Preferably, the conductive protrusion is cylindrical.

Specifically, the connection terminals include a power connection terminal, a ground connection terminal, and a signal connection terminal.

Preferably, the film substrate is a transparent structure.

Preferably, the thin film LED display screen further includes a flexible packaging layer, and the flexible packaging layer covers the LED light emitting units and the connection circuit.

Preferably, the film substrate is a transparent structure, and the flexible packaging layer is a transparent structure.

Preferably, each of the LED light emitting units includes a red light emitting unit emitting red light, a green light emitting unit emitting green light, and a blue light emitting unit emitting blue light.

Compared with the prior art, the utility model discloses a plurality of through-holes have been seted up to the film base, interconnecting link has the link that extends to through-hole department, the PCB board sets up in the film base one side that deviates from interconnecting link, the protruding a plurality of electrically conductive archs that correspond a plurality of through-holes respectively that are equipped with of PCB board, each electrically conductive arch is worn to establish a through-hole, and with the link welded connection that corresponds, with the electricity link of connection, can realize that the PCB board is connected with interconnecting link's stable electricity, and then can realize that LED light-emitting unit is connected with the stable electricity of PCB board. Meanwhile, the PCB board can be stably fixed on the film substrate. In addition, the PCB and the film substrate are integrated, so that the occupied space is small, and meanwhile, the manufacturing process is simpler because the FPC flat cable does not need to be connected.

Drawings

FIG. 1 is a schematic diagram of a prior art thin film LED display screen;

fig. 2 is a schematic view of a thin film LED display screen according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a connection circuit according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a PCB according to an embodiment of the present invention;

fig. 5 is a side view of a thin film LED display according to an embodiment of the present invention.

Detailed Description

To explain the contents, structural features, objects and effects of the present invention in detail, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and thus, the present invention should not be construed as being limited to the protection of the present invention.

The following describes the technical solution of the embodiment of the present invention in detail:

referring to fig. 2 to 5, the present invention provides a film LED display 100, which includes a film substrate 1, a connection circuit 2, a plurality of LED light emitting units 3 and a PCB 4 (as shown in fig. 5). Wherein, the film substrate 1 is provided with a plurality of through holes 11. The connection wiring 2 is formed on the upper surface of the film substrate 1, and the connection wiring 2 has connection terminals 21-23 (shown in FIG. 3) extending to the through-holes 11. The LED light-emitting units 3 are arranged on the film substrate 1, and electrodes of the LED light-emitting units 3 are electrically connected with the connecting circuit 2. The PCB 4 is disposed on a surface of the film substrate 1 away from the connection circuit 2 (i.e., a lower surface of the film substrate 1), the PCB 4 is convexly provided with a plurality of conductive protrusions 5 respectively corresponding to the plurality of through holes 11, each conductive protrusion 5 is inserted into one through hole 11 and is welded to a corresponding connection end (as shown in fig. 2), so as to electrically connect the conductive protrusion 5 and the connection circuit 2, thereby electrically connecting the LED light-emitting unit 3 and the PCB 4, so as to control the plurality of LED light-emitting units 3 through the PCB 4, for example, to control the on/off of the LED light-emitting unit 3; for another example, the light emission luminance of the LED light-emitting unit 3 and the like are controlled.

In one embodiment, the height of the conductive bump 5 is greater than the thickness of the film substrate 1, i.e. the conductive bump 5 extends upwards beyond the film substrate 1, in order to achieve an electrical connection of the conductive bump 5 with the connection line 2.

In one embodiment, the conductive bump 5 has a cylindrical shape, as shown in fig. 4. Correspondingly, the through hole 11 is a circular through hole. The conductive bumps 5 may be, for example, copper pillars or the like. The conductive bumps 5 are fixed on the PCB 4 by welding.

In one embodiment, the connections include a power connection 21, a ground connection 22, and a signal connection 23.

In one embodiment, the LED light emitting unit 3 is an LED lamp bead provided with a driver IC, the LED light emitting unit 3 includes an LED bracket having a receiving cup body, and a light emitting chip and a driver IC disposed in the receiving cup body, a plurality of pins are disposed outside the LED bracket, the driver IC and the light emitting chip are electrically connected to the corresponding pins respectively, the driver IC is electrically connected to the light emitting chip, and the pins are electrically connected to the connecting circuit 2. The PCB board 4 transmits a control signal to the driving IC to control the light emitting chip, for example, to control a gray scale, a color temperature, etc. of the light emitting chip; and the connecting circuit 2 is connected with the PCB 4 to enable the driving IC and the light-emitting chip to be electrically connected with the PCB 4, so that power supply and the like are provided for the driving IC and the light-emitting chip.

In one embodiment, the LED lighting unit 3 includes a power pin for receiving a power supply, a ground pin for grounding, and a signal pin for receiving a control signal, the power connection terminal 21 is electrically connected to the power pin, the ground connection terminal 22 is electrically connected to the ground pin, the signal connection terminal 23 is electrically connected to the signal pin to receive the control signal transmitted from the PCB board 3, and the driving IC controls the light emitting chip based on the control signal received by the signal pin.

In one embodiment, the light emitting chips of each LED light emitting unit 3 include a red light chip, a green light chip and a blue light chip.

In one embodiment, the film substrate 1 is a transparent structure. By the design, the transparency of the thin film LED display screen 100 is better.

In one embodiment, the thin film LED display screen 100 further includes a flexible packaging layer 6, and the flexible packaging layer 6 covers the LED light-emitting units 3 and the connection lines 2 to protect the LED light-emitting units 3 and the connection lines 2.

In one embodiment, the film substrate 1 is a transparent structure and the flexible encapsulation layer 6 is also a transparent structure. By the design, the transparency of the thin film LED display screen 100 is better.

In one embodiment, the flexible encapsulation layer 6 is a silicone layer. In one embodiment, the flexible encapsulation layer 6 is an epoxy layer. In one embodiment, the flexible encapsulation layer 6 is a polyurethane layer. Of course, the flexible encapsulating layer 6 may be of other materials.

The PCB 4 specifically includes what components and how the electrical connection relationships of the components are, so as to control the lighting, extinguishing, and the like of the LED light-emitting unit 3, and control the brightness of the LED light-emitting unit 3 and the like are prior art, and are not described herein again.

To sum up, the utility model discloses a plurality of through-holes 11 have been seted up to film base 1, interconnecting link 2 has the link 21-23 that extends to through-hole 11 department, PCB board 4 sets up in the film base 1 one side that deviates from interconnecting link 2, PCB board 4 is protruding to be equipped with a plurality of electrically conductive archs 5 that correspond a plurality of through-holes 11 respectively, each electrically conductive arch 5 wears to establish at a through-hole 11 to with the link welded connection that corresponds, can realize PCB board 4 and interconnecting link 2's stable electricity and be connected, and then can realize that LED light-emitting unit 3 is connected with PCB board 4's stable electricity. Meanwhile, the PCB 4 can also be stably fixed on the film substrate 1 without affecting the display effect of the film LED display screen 100, and the front side of the film LED display screen 100 can realize full-screen display. In addition, the PCB 4 and the film substrate 1 are integrated, so that the occupied space is small, and meanwhile, the manufacturing process is simpler because FPC (flexible printed circuit) flat cable is not required to be connected.

The above disclosure is only a preferred embodiment of the present invention, and the scope of the claims of the present invention should not be limited thereby, and all the equivalent changes made in the claims of the present invention are intended to be covered by the present invention.

Claims

1. The utility model provides a thin film LED display screen, its characterized in that includes film base, interconnecting link, a plurality of LED luminescence unit and PCB board, a plurality of through-holes have been seted up to the film base, interconnecting link forms in the film base, interconnecting link has and extends to the link of through-hole department, a plurality of LED luminescence unit locate in the film base, just a plurality of LED luminescence unit's electrode with the interconnecting link electricity is connected, the PCB board sets up the film base deviates from in the one side of interconnecting link, the protruding being equipped with of PCB board corresponds respectively a plurality of electrically conductive archs of a plurality of through-holes, each electrically conductive arch is worn to establish one the through-hole, and with corresponding link welded connection, with the electricity is connected the link.

2. The thin film LED display of claim 1 wherein the height of the conductive bumps is greater than the thickness of the thin film substrate.

3. The thin film LED display of claim 1 or 2, wherein the conductive bumps are cylindrical.

4. The thin film LED display screen of claim 1 or 2, wherein the connection terminals include a power connection terminal, a ground connection terminal, and a signal connection terminal.

5. The thin film LED display of claim 1 or 2, wherein the thin film substrate is a transparent structure.

6. The thin film LED display of claim 1 or 2, further comprising a flexible packaging layer covering the LED lighting units and the connection lines.

7. The thin film LED display of claim 6 wherein the thin film substrate is a transparent structure and the flexible encapsulant layer is a transparent structure.

8. The thin film LED display of claim 1 or 2, wherein each of the LED light emitting units comprises a red light emitting unit emitting red light, a green light emitting unit emitting green light, and a blue light emitting unit emitting blue light.