CN-121999679-A - Flexible display screen and electronic equipment

Abstract

A flexible display screen and an electronic device comprise a rotating shaft, a first body, a second body, a flexible display screen, a supporting piece and an optical signal transmission piece. The first body is provided with a first device. The first body and the second body are respectively positioned at two sides of the rotating shaft and are respectively connected with the rotating shaft in a rotating way, and the second body is provided with a second device. The flexible display screen covers the first body, the second body and the rotating shaft. The support piece is arranged between the flexible display screen and the rotating shaft and is used for supporting the flexible display screen. The optical signal transmission piece is arranged on the flexible display screen or the support piece, and two ends of the optical signal transmission piece are respectively and electrically connected with the first device and the second device. In the application, the optical signal transmission part is integrated on the flexible display screen or the support part, namely the optical signal transmission part does not need to pass through the rotating shaft, so that the internal space of the rotating shaft can be saved, the thin design of the rotating shaft is facilitated, the thickness of the whole machine is reduced, meanwhile, the transmission link of the optical signal transmission part can be shortened, the loss is reduced, and the remarkable attenuation of the signal intensity is avoided.

Inventors

• ZHAO YINGBO
• LI LIJIANG
• CAI JINGNAN
• YU LIQIANG
• JIANG FAN

Assignees

• 华为技术有限公司

Dates

Publication Date

20260508

Application Date

20241107

Claims (16)

1. 1. An electronic device, comprising: A rotating shaft; The first body is provided with a first device; The first body and the second body are respectively positioned at two sides of the rotating shaft and are respectively connected with the rotating shaft in a rotating way; The flexible display screen covers the first body, the second body and the rotating shaft; the support piece is arranged between the flexible display screen and the rotating shaft and used for supporting the flexible display screen; The optical signal transmission piece is arranged on the flexible display screen or the supporting piece, and two ends of the optical signal transmission piece are respectively and electrically connected with the first device and the second device.
2. 2. The electronic device of claim 1, wherein the optical signal transmission member is disposed inside the support member.
3. 3. The electronic device of claim 1, wherein the material of the support member is a fiber-resin composite material, the support member includes a plurality of support bars, the support bars are cross-woven, and the optical signal transmission member is disposed between at least the support bars.
4. 4. The electronic device according to claim 3, wherein the fibers in the fiber-resin composite material include one or a combination of two or more of carbon fibers, glass fibers, polyimide fibers, ultra-high molecular weight polyethylene fibers, and poly-p-phenylene benzobisoxazole fibers, and the resin in the fiber-resin composite material includes one or a combination of two or more of epoxy resin, acrylic resin, polyurethane resin, phenolic resin, or engineering plastic resin.
5. 5. The electronic device of claim 1, wherein the support member is made of a metal material, a first groove is provided on the support member, and the optical signal transmission member is disposed in the first groove.
6. 6. The electronic device of claim 5, wherein the optical signal transmission member is bonded to an inner wall of the first recess.
7. 7. The electronic device of claim 1, wherein the optical signal transmission member is coupled to a side of the support member facing away from the flexible display screen.
8. 8. The electronic device of claim 1, wherein the optical signal transmission member is disposed inside the flexible display screen.
9. 9. The electronic device of claim 1, wherein the flexible display screen comprises a cover plate, a display panel, and a back film, the cover plate and the back film being respectively stacked on two sides of the display panel, and the optical signal transmission member being disposed in the back film.
10. 10. The electronic device of claim 9, wherein the back film is provided with a through hole or a second groove, and the optical signal transmission member is disposed in the through hole or the second groove.
11. 11. The electronic device according to any one of claims 1 to 10, wherein the optical signal transmission member is provided with one or more, and when the optical signal transmission member is provided with two or more, at least two of the optical signal transmission members are provided in parallel.
12. 12. The electronic device of any one of claims 1-11, wherein the optical signal transmission member comprises a core and a cladding, the cladding is coated on the outside of the core, the cladding is made of one or a combination of more than two of acrylic, polyimide or polysilane, the core is used for transmitting optical signals, and the core is made of optical waveguide glass fiber.
13. 13. The electronic device of any of claims 1-12, wherein the optical signal transmission member comprises an optical waveguide or a flexible optical fiber.
14. 14. The electronic device of any of claims 1-13, wherein the first and second devices are circuit boards.
15. 15. A flexible display screen, wherein the flexible display screen is applied to the electronic device of any one of claims 1-14, the flexible display screen comprises a cover plate, a display panel and a back film, the cover plate and the back film are respectively overlapped on two sides of the display panel, and an optical signal transmission part in the electronic device is arranged in the back film.
16. 16. A flexible display screen, wherein the flexible display screen is applied to the electronic device of any one of claims 1 to 14, and further comprises a cover plate, a display panel, a back film and a supporting member, wherein the cover plate, the display panel, the back film and the supporting member are sequentially stacked, and the optical signal transmission member is arranged in the supporting member.

Description

Flexible display screen and electronic equipment Technical Field The application relates to the technical field of electronic products, in particular to a flexible display screen and electronic equipment. Background For foldable electronic products such as a folding mobile phone, folding is generally realized through a rotating shaft, and electronic devices such as a main board, an auxiliary board and the like positioned on two sides of the rotating shaft are generally electrically connected through a flexible circuit board (Flexible Printed Circuit Board, FPC). But the FPC is bulky and the area overlapping the battery can seriously affect the battery capacity. Since the FPC needs to pass through the rotation shaft, the rotation shaft also needs to have a space for accommodating the FPC inside, which also greatly increases the thickness of the rotation shaft. In addition, as foldable electronic devices evolve toward multiple folds, the link for FPC transmission will be longer and the attenuation of signal strength will be more pronounced. Disclosure of Invention In view of the above, the present application provides a flexible display screen and an electronic device, so as to solve the problems of the prior art that the FPC occupies too large space, the thickness of the rotating shaft increases, and the battery capacity is affected when the FPC is used to transmit signals. In a first aspect, an embodiment of the present application provides an electronic device, where the electronic device includes a rotating shaft, a first body, a second body, a flexible display screen, a support, and an optical signal transmission member. The first body is provided with a first device. The first body and the second body are respectively positioned at two sides of the rotating shaft and are respectively connected with the rotating shaft in a rotating way, and a second device is arranged on the second body. The flexible display screen covers the first body, the second body and the rotating shaft. The support piece is arranged between the flexible display screen and the rotating shaft and is used for supporting the flexible display screen. The optical signal transmission piece is arranged on the flexible display screen or the supporting piece, and two ends of the optical signal transmission piece are respectively and electrically connected with the first device and the second device. In the application, the optical signal transmission part is integrated on the flexible display screen or the support part, namely the optical signal transmission part does not need to pass through the rotating shaft, so that the internal space of the rotating shaft can be saved, the thin design of the rotating shaft is facilitated, the thickness of the whole machine is reduced, meanwhile, the transmission link of the optical signal transmission part can be shortened, the loss is reduced, and the remarkable attenuation of the signal intensity is avoided. In one possible implementation, the optical signal transmission member is disposed inside the support member. The thickness dimension of the optical signal transmission piece is smaller than that of the supporting piece, so that the optical signal transmission piece can be arranged in the supporting piece, the optical signal transmission piece can be prevented from occupying extra space outside the supporting piece, and the internal space of the electronic equipment is saved. In one possible implementation, the material of the supporting member is a fiber resin composite material, the supporting member includes a plurality of supporting bars, the supporting bars are cross-woven, and the optical signal transmission member is arranged between at least the supporting bars. The support bars which are arranged in a crossed mode can be mutually perpendicular or not, two adjacent support bars can be mutually overlapped, and therefore a support piece with a stable structure can be formed by the cross braiding of a plurality of support bars, and reliable support of the flexible display screen can be achieved. The optical signal transmission part is also in a strip shape, can be arranged between partial support bars in a penetrating way, can be mutually overlapped with corresponding support bars, realizes the support limit of the optical signal transmission part through the corresponding support bars, ensures the reliability of fixing the support bars, simultaneously avoids the optical signal transmission part occupying the space outside the support parts, saves the space in the rotating shaft and the electronic equipment, and is favorable for realizing the integral thin design of the rotating shaft and the electronic equipment. In one possible implementation, the fibers in the fiber resin composite material include one or more of carbon fibers, glass fibers, polyimide fibers, ultra-high molecular weight polyethylene fibers, and poly-p-phenylene benzobisoxazole fibers, and the resin in the fiber resin comp