CN216291594U

CN216291594U - FPC structure and AMOLED display panel

Info

Publication number: CN216291594U
Application number: CN202121587546.3U
Authority: CN
Inventors: 吴伟佳
Original assignee: Truly Semiconductors Ltd
Current assignee: Truly Semiconductors Ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2022-04-12
Anticipated expiration: 2031-07-13

Abstract

The utility model discloses an FPC structure and an AMOLED display panel, wherein the FPC integrates an ONCELL TP FPC and a main FPC into a whole, the FPC is provided with a gold finger binding area, a COF connecting area and a main control board connecting area, wherein the gold finger binding area is used for binding and connecting ONCELL TP pins, the COF connecting area is used for connecting a COF board, the main control board connecting area is used for connecting a main control board, a display driver IC is bound on the COF board, and the COF board is used for binding and connecting display driver pins of the display panel. The ONCELL TP FPC and the main FPC in the prior art are integrated, FPC materials can be reduced, welding processes are reduced, SMT times are reduced, cost can be reduced, and reliability requirements can be improved.

Description

FPC structure and AMOLED display panel

Technical Field

The utility model belongs to the technical field of electronics, and particularly relates to an FPC structure and an AMOLED display panel.

Background

With the development of the intelligent wearable electronic device technology, the wearable electronic device is more and more popular with consumers, the display screen of the mainstream wearable electronic device in the current market adopts an AMOLED (active matrix organic light emitting diode), a COF (chip on film) scheme is mostly adopted for a driving IC (integrated circuit), and an ONCELL scheme is generally adopted for touch. As shown in fig. 1, based on the above scheme, a common scheme of the external connection of the AMOLED to the driver control circuit is that an ONCELL TP FPC is integrated on a main FPC by welding, and a COF board is integrated by binding, and the main FPC is connected to a main control board. The external control scheme needs two FPCs (ONCELL TP FPC and main FPC), the ONCELL TP FPC needs to be welded on the main FPC, a welding process flow is provided, the two FPCs need to adopt two SMT processes, the process is complex, the cost is high, and the product reliability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an FPC structure and an AMOLED display panel which have the advantages of improving reliability, reducing cost and reducing processes.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

the utility model provides a FPC structure, FPC is integrated into a holistic FPC with ONCELL TP FPC and main FPC, FPC is equipped with gold finger and binds district, COF joining region and main control board joining region, and wherein the gold finger is bound the district and is used for binding connection ONCELL TP pin, and the COF joining region is used for connecting the COF board, and the main control board joining region is used for connecting the main control board, bind on the COF board and show that driver IC and COF board are used for binding the display driver pin of connecting display panel.

Furthermore, the golden finger binding area comprises a pin area and a reinforcing area, pins are uniformly arranged in the pin area at a certain interval, and the reinforcing area is symmetrically arranged at two ends of the pin area.

Preferably, the reinforcing region is provided with reinforcing points, and the reinforcing points are in a cross shape or an F shape.

Furthermore, the golden finger binding area is bound through an ACF to realize pin electric connection.

Further, the COF connection region is provided with a connector, and the COF board is connected with the FPC through the connector.

Preferably, the connector is a B2B connector or a ZIP connector.

Furthermore, the COF connecting area is provided with a pin, and the COF board is bound and connected with the FPC through the ACF.

Furthermore, the main control board connection area is provided with a connector, and is connected with the main control board through the connector.

An AMOLED display panel comprises the FPC structure in the technical scheme.

Further, still include the apron, AMOLED display panel passes through OCA optical cement laminating in apron below.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the ONCELL TP FPC and the main FPC in the prior art are integrated, FPC materials can be reduced, welding processes are reduced, SMT times are reduced, cost can be reduced, and reliability requirements can be improved.

Drawings

FIG. 1 is a schematic structural diagram of an FPC of a conventional wearable device;

FIG. 2 is a schematic diagram of a front view of the FPC of the present invention;

FIG. 3 is a schematic diagram of the FPC side view structure of the present invention;

wherein: 1. cover plate, 2, COF board, 3, main FPC, 4, ONCELL TP FPC, 5, FPC, 6, optical cement, 7, circular polaroid, 8, AMOLED display panel.

Detailed Description

The utility model is described in further detail below with reference to the attached drawings:

the English short sentence used in the utility model, the abbreviation and the corresponding Chinese translation are as follows:

AMOLED is an abbreviation of Active-matrix organic light-emitting diode, and Chinese means: an active matrix organic light emitting diode or an active matrix organic light emitting diode.

ONCELL: the method is a method for embedding the touch screen between a color filter substrate and a polarizer of the display screen, namely, a touch sensor is arranged on a liquid crystal panel.

TP is the abbreviation of touch panel, Chinese means: touch panel

FPC is the abbreviation of Flexible Printed Circuit, and Chinese means: a flexible wiring board.

ONCELL TP FPC, Chinese finger ONCELL touch-control flexible printed circuit board.

TP Sensor, chinese refers to a touch Sensor.

COF is a short name for Chip On Flex, or, Chip On Film, and refers to a flip-Chip Film, which is a technology for packaging a Chip On Flex (fpc) that secures an Integrated Circuit (IC) On a flexible circuit board.

The OCA is short for optical Clear additive, and the Chinese finger: an optically clear adhesive.

SMT is the abbreviation of Surface Mounted Technology, Chinese refers to: surface mount technology.

ACF is short for Anisotropic Conductive Film, and Chinese means: an anisotropic conductive film.

The utility model relates to a FPC structure for wearable equipment and an AMOLED display panel adopting the FPC structure.

Example 1

As shown in fig. 2-3, the FPC in this embodiment is an FPC 5 that integrates an ONCELL TP FPC and a main FPC into a whole, the FPC is provided with a gold finger binding region, a COF connection region and a main control board connection region, wherein the gold finger binding region is used for binding and connecting pins of the ONCELL TP, the ONCELL TP is a TP Sensor pattern layer integrated on a display panel, the COF connection region is used for connecting a COF board, the main control board connection region is used for connecting a main control board, and a display driver IC is bound on the COF board and the COF board is used for binding and connecting display driver pins of the display panel.

Referring to fig. 2, the gold finger bonding area in this embodiment is an area where the FPC is bonded to the display panel, and includes a pin area and a reinforcement area, where the pin area uniformly sets pins at a certain interval, the reinforcement area is symmetrically disposed at two ends of the pin area, and the reinforcement area is provided with reinforcement dots, and the reinforcement dots in this embodiment are cross-shaped. The golden finger binding area is bound through the ACF to realize pin electric connection, so that the electric connection between the FPC and the display panel is realized.

The COF connection region described in this embodiment is used for connecting COF boards, and the connection manner of the COF boards may be soldering, connector connection or binding connection. The COF connection region described in this embodiment is provided with a bonding pin, and the COF board is bonded and connected with the FPC through the ACF.

The main control board connection area is used for connecting the main control board, and the main control board connection area is provided with a connector and is connected with the main control board through the connector. The connector may be a ZIP connector train B2B connector according to actual needs.

The embodiment further provides an AMOLED display panel, which adopts the FPC structure according to the above technical solution, and further includes a cover plate, where the AMOLED display panel 8 is attached below the cover plate through the OCA optical cement 6. The AMOLED display panel described in this embodiment includes an AMOLED display substrate and a circular polarizer 7, and the circular polarizer is attached to the upper surface of the AMOLED display substrate.

Of course, the display panel of the embodiment is an ONCELL type AMOLED panel, and may also be other types of ONCELL display panels or INCELL display panels, which may be designed according to actual requirements.

Example 2

The present embodiment differs from the embodiment in that: the reinforcing dot pattern of the gold finger binding region of the embodiment is an F-shape, and is symmetrically arranged on two sides of the pin region, and the F openings are opposite.

The connection manner of the COF connection region to the COF board in this embodiment is different from that in embodiment 1, and the COF board in this embodiment is connected to the FPC by a connector, which is a B2B connector or a ZIP connector.

Claims

1. An FPC structure, its characterized in that: the FPC integrates an ONCELL TP FPC and a main FPC into a whole FPC, the FPC is provided with a gold finger binding area, a COF connecting area and a main control board connecting area, wherein the gold finger binding area is used for binding and connecting ONCELL TP pins, the COF connecting area is used for connecting a COF board, the main control board connecting area is used for connecting a main control board, a display driver IC is bound on the COF board, and the COF board is used for binding and connecting display driver pins of a display panel.

2. An FPC structure as claimed in claim 1, wherein: the golden finger binding area comprises a pin area and a reinforcing area, pins are uniformly arranged in the pin area at a certain interval, and the reinforcing area is symmetrically arranged at two ends of the pin area.

3. An FPC structure as claimed in claim 2, wherein: the reinforcing area is provided with reinforcing points, and the reinforcing points are in a cross shape or an F shape.

4. An FPC structure as claimed in any one of claims 1 to 3, wherein: the golden finger binding area is bound through an ACF (anisotropic conductive film) to realize pin electric connection.

5. An FPC structure as claimed in claim 1, wherein: the COF connection region is provided with a connector, and the COF board is connected with the FPC through the connector.

6. An FPC structure according to claim 5, characterized in that: the connector is a B2B connector or a ZIP connector.

7. An FPC structure as claimed in claim 1, wherein: the COF connecting area is provided with a pin, and the COF board is bound and connected with the FPC through the ACF.

8. An FPC structure as claimed in claim 1, wherein: the main control board connecting area is provided with a connector and is connected with the main control board through the connector.

9. An AMOLED display panel, characterized in that: comprising the FPC structure of claims 1-8.

10. An AMOLED display panel as defined in claim 9, wherein: still include the apron, AMOLED display panel passes through OCA optical cement laminating in apron below.