US-12628266-B2 - Display screen including flexible printed circuit and electronic device

Abstract

A display screen and an electronic device are provided. The display screen includes an FPC, where the FPC includes a flexible substrate, a first pin, and a second pin, and the first pin and the second pin are disposed on the flexible substrate at an interval; and the flexible substrate is provided with a charge-isolating portion that is disposed between the first pin and the second pin; or the FPC further includes a packaging portion and a moisture-isolating layer, where the packaging portion covers part of the first pin and part of the second pin, and the moisture-isolating layer is disposed between the first pin and the packaging portion and between the second pin and the packaging portion.

Inventors

• Liangliang BEI

Assignees

• VIVO MOBILE COMMUNICATION CO., LTD.

Dates

Publication Date

20260512

Application Date

20220715

Priority Date

20200120

Claims (20)

1. 1 . A Flexible Printed Circuit (FPC), comprising: a flexible substrate; a first pin; a second pin, wherein the first pin and the second pin are disposed on the flexible substrate at an interval, and the flexible substrate is provided with a charge-isolating portion that is disposed between the first pin and the second pin, wherein the charge-isolating portion is made of an insulating material; a packaging portion comprising adhesive and a cover film, and covering a part of the first pin and a part of the second pin; and a moisture-isolating layer made of a waterproof material, and comprising a first portion disposed between the first pin and the packaging portion, a second portion disposed between the second pin and the packaging portion, and a third portion disposed between the packaging portion and a region of the flexible substrate between the first pin and the second pin.
2. 2 . The FPC according to claim 1 , wherein the first pin and the second pin are adjacent pins.
3. 3 . The FPC according to claim 1 , wherein the charge-isolating portion is provided with a No-Connection (NC) pin that is spaced from both the first pin and the second pin.
4. 4 . The FPC according to claim 3 , wherein the first pin, the second pin, and the NC pin are disposed at regular intervals.
5. 5 . The FPC according to claim 4 , wherein a distance from the first pin to the second pin nearest to the first pin is a first distance, a distance from the first pin to the NC pin adjacent thereto is a second distance, and a ratio of the first distance to the second distance is greater than a preset value.
6. 6 . The FPC according to claim 3 , wherein there are at least two NC pins that are all disposed between the first pin and the second pin at intervals.
7. 7 . The FPC according to claim 1 , wherein the moisture- isolating layer is a waterproof glue layer.
8. 8 . The FPC according to claim 1 , wherein the moisture- isolating layer covers the first pin, the second pin, and the region of the flexible substrate between the first pin and the second pin.
9. 9 . A Flexible Printed Circuit (FPC), comprising: a flexible substrate; a first pin; a second pin; a charge-isolating portion disposed between the first pin and the second pin, wherein the charge-isolating portion is made of an insulating material; a packaging portion comprising adhesive and a cover film; and a moisture-isolating layer made of a waterproof material, wherein the packaging portion covers a part of the first pin and a part of the second pin, and the moisture-isolating layer comprises a first portion disposed between the first pin and the packaging portion, a second portion disposed between the second pin and the packaging portion, and a third portion disposed between the packaging portion and a region of the flexible substrate between the first pin and the second pin.
10. 10 . The FPC according to claim 9 , wherein the moisture-isolating layer is a waterproof glue layer.
11. 11 . The FPC according to claim 9 , wherein the moisture-isolating layer covers the first pin, the second pin, and the region of the flexible substrate between the first pin and the second pin.
12. 12 . The FPC according to claim 9 , wherein the first pin and the second pin are disposed on the flexible substrate at an interval.
13. 13 . The FPC according to claim 12 , wherein the first pin and the second pin are adjacent pins.
14. 14 . The FPC according to claim 12 , wherein the charge-isolating portion is provided with a No-Connection (NC) pin that is spaced from both the first pin and the second pin.
15. 15 . The FPC according to claim 14 , wherein the first pin, the second pin, and the NC pin are disposed at regular intervals.
16. 16 . The FPC according to claim 15 , wherein a distance from the first pin to the second pin nearest to the first pin is a first distance, a distance from the first pin to the NC pin adjacent thereto is a second distance, and a ratio of the first distance to the second distance is greater than a preset value.
17. 17 . The FPC according to claim 14 , wherein there are at least two NC pins that are all disposed between the first pin and the second pin at intervals.
18. 18 . A display screen, comprising: a Flexible Printed Circuit (FPC), comprising: a flexible substrate; a first pin; a second pin, wherein the first pin and the second pin are disposed on the flexible substrate at an interval, and the flexible substrate is provided with a charge-isolating portion that is disposed between the first pin and the second pin, wherein the charge- isolating portion is made of an insulating material; a packaging portion comprising adhesive and a cover film, and covering a part of the first pin and a part of the second pin; and a moisture-isolating layer made of a waterproof material, and comprising a first portion disposed between the first pin and the packaging portion, a second portion disposed between the second pin and the packaging portion, and a third portion disposed between the packaging portion and a region of the flexible substrate between the first pin and the second pin; a first substrate; a second substrate; and an organic light-emitting layer disposed between the first substrate and the second substrate.
19. 19 . The display screen according to claim 18 , wherein the first pin and the second pin are adjacent pins.
20. 20 . The display screen according to claim 18 , wherein the charge-isolating portion is provided with a No-Connection (NC) pin that is spaced from both the first pin and the second pin.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/CN2021/072197, filed on Jan. 15, 2021, which claims priority to Chinese Patent Application No. 202010070082.2, filed on Jan. 20, 2020. The entire contents of each of the above-identified applications are expressly incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to the field of display technologies, and in particular, to a display screen and an electronic device. BACKGROUND With the improvement of people's living standards and the development of communication technologies, electronic devices providing convenience for daily life of the majority of consumers become increasingly popular in people's life. A display screen of an electronic device needs to be electrically connected to an external Printed Circuit Board (PCB), to transfer an electrical signal. In some embodiments, a plurality of signal pins of the display screen are arranged at intervals; and a great voltage difference is generated between a high-potential signal pin (during designing and arrangement of the signal pins, when a voltage difference between two adjacent signal pins is greater than 4V, a signal pin having a higher potential is defined as a high-potential signal pin) and another adjacent signal pin. When the display screen is in an environment of a reliability test for high temperature and high humidity, charges on signal pins transfer due to high humidity (one of conditions for charge transfer) in the environment and a high voltage difference (another condition for charge transfer) between adjacent signal pins in such a manner that positive charges transfer in a low voltage direction, and negative charges transfer in a high voltage direction. This leads to charge transfer between a high-potential signal pin and another adjacent signal pin after the display screen has passed the reliability test for high temperature and high humidity. Moreover, as working time of the display screen increases, charge transfer becomes increasingly serious, which finally leads to short circuit between two different signal pins, resulting in abnormal display of the display screen. SUMMARY The present disclosure discloses a display screen and an electronic device. According to a first aspect, an embodiment of the present disclosure provides a display screen including a Flexible Printed Circuit (FPC), where the FPC includes a flexible substrate, a first pin, and a second pin, and the first pin and the second pin are disposed on the flexible substrate at an interval; and the flexible substrate is provided with a charge-isolating portion that is disposed between the first pin and the second pin; orthe FPC further includes a packaging portion and a moisture-isolating layer, where the packaging portion covers part of the first pin and part of the second pin, and the moisture-isolating layer is disposed between the first pin and the packaging portion and between the second pin and the packaging portion. According to a second aspect, an embodiment of the present disclosure provides an electronic device including the display screen according to the foregoing first aspect. BRIEF DESCRIPTION OF DRAWINGS To describe the technical solutions in the embodiments of the present disclosure or in the background art more clearly, the drawings required for describing the embodiments or the background art are described briefly below. Obviously, other drawings can be obtained by those of ordinary skill in the art based on these drawings without creative efforts. FIG. 1 is a schematic diagram of a partial structure of a display screen according to an embodiment of the present disclosure; FIG. 2 is a schematic diagram of a partial structure of a display screen according to another embodiment of the present disclosure; FIG. 3 is a schematic diagram of a partial structure of a display screen according to still another embodiment of the present disclosure; and FIG. 4 is a sectional view along A-A in FIG. 3. Reference Numerals in the Accompanying Drawings are as Follows: 100-flexible substrate, 110-charge-isolating portion, 200-first pin, 300-second pin, 400-packaging portion, 500-moisture-isolating layer, and 600-No-Connection (NC) pin. DETAILED DESCRIPTION The following describes the technical solutions of the present disclosure with reference to the specific embodiments of the present disclosure and the corresponding accompanying drawings. Apparently, the described embodiments are merely some rather than all of the embodiments of the present disclosure. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure. The technical solutions disclosed by various embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. Referring to FIG. 1 to F