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CN-121982975-A - Flexible screen folding structure and folding terminal with same

CN121982975ACN 121982975 ACN121982975 ACN 121982975ACN-121982975-A

Abstract

The invention provides a flexible screen folding structure and a folding terminal with the same, and the flexible screen folding structure comprises a shell, electronic components, a flexible screen and a support assembly, wherein the flexible screen folding structure is loaded in the flexible screen shell, the support assembly is used for loading the flexible screen and comprises a first rotating part and a second rotating part which are arranged at intervals and are respectively fixedly connected with the flexible screen, a flexible bending part made of a thermosensitive shape memory material is used, the flexible bending part of the flexible screen is connected to two sides of the thickness between the first rotating part of the flexible screen and the second rotating part of the flexible screen to form a containing space for containing the bending part of the flexible screen in a folding state, and the temperature field generating assembly is used for receiving external signals to convey heat to the flexible bending part of the flexible screen or stop. Compared with the traditional rigid mechanical folding structure, the folding structure has the advantages of high structural durability and no mechanical abrasion.

Inventors

  • CHEN ZHOU
  • ZHENG LEI
  • Chucheng Shengze
  • TANG ZONG
  • Quan Zijian
  • SONG SHANGKUN
  • Chu Ruxiang

Assignees

  • 中国计量大学

Dates

Publication Date
20260505
Application Date
20260408

Claims (14)

  1. 1. A flexible screen folding structure comprising a flexible screen (200), characterized in that it further comprises: The support assembly (301) is used for bearing the flexible screen (200) and comprises a first rotating part (3011) and a second rotating part (3012) which are arranged at intervals and are respectively fixedly connected with the flexible screen (200); A flexible bending part (302) made of a heat-sensitive shape memory material, the flexible bending part (302) being connected to both sides of the thickness between the first rotating part (3011) and the second rotating part (3012) to form a receiving space (303) for receiving the bending part of the flexible screen (200) in a folded state, and A temperature field generating assembly for receiving an external signal to deliver heat to the flexible bend (302) or to stop.
  2. 2. A flexible screen folding structure as claimed in claim 1, wherein the temperature field generating assembly comprises a controller for receiving an external signal, and a heat generating filamentous polymer (3043) coupled to the controller and disposed within the flexible bend (302).
  3. 3. A flexible screen folding structure according to claim 2, wherein the flexible bending portion (302) comprises a first support layer (3021) and a second support layer (3022) respectively corresponding to the two sides of the thickness between the first rotating portion (3011) and the second rotating portion (3012), and the heat-generating filamentous polymer (3043) is disposed in the first support layer (3021) and the second support layer (3022).
  4. 4. A flexible screen folding structure according to claim 3, characterized in that the controller is provided on opposite side surfaces of the first support layer (3021) and the second support layer (3022).
  5. 5. A flexible screen fold structure according to claim 4 wherein the heat generating filiform polymer (3043) is a single walled carbon nanotube and resin based shape memory polymer hybrid material.
  6. 6. A flexible screen fold structure according to claim 4 wherein the heat generating filiform polymer (3043) is a liquid metal and nano-silver wire.
  7. 7. A flexible screen folding structure according to claim 5, characterized in that the controller is a near infrared light generator (3041) arranged on opposite side surfaces of the first support layer (3021) and the second support layer (3022).
  8. 8. A flexible screen folding structure as claimed in claim 6, wherein the controller is a circuit board (3042) disposed on opposite side surfaces of the first support layer (3021) and the second support layer (3022).
  9. 9. A flexible screen folding structure according to claim 3, characterized in that the heat-sensitive shape memory material used for the flexible bending portion (302) is a resin-based shape memory polymer.
  10. 10. A flexible screen folding structure according to claim 3, characterized in that the first support layer (3021) comprises a horizontal layer (3023) provided with a heat-generating filamentous polymer (3043) and a U-shaped layer (3024) provided on the side of the horizontal layer (3023) facing away from the flexible screen (200), and the second support layer (3022) has the same structure as the first support layer (3021).
  11. 11. A flexible screen folding structure as claimed in claim 10, wherein the controller is provided at the bottom of the U-shaped layer (3024).
  12. 12. A flexible screen folding structure according to claim 10, characterized in that the heat generating filiform polymer (3043) is laid out in a grid.
  13. 13. A folding terminal comprising a housing (101) and electronic components, further comprising a flexible screen folding structure (300) according to any of claims 1-11, carried within the housing (101).
  14. 14. A folding terminal according to claim 13, characterized in that the electronic components are carried in the support assembly (301).

Description

Flexible screen folding structure and folding terminal with same Technical Field The invention relates to the technical field of electronic products, in particular to a flexible screen folding structure and a folding terminal with the same. Background The flexible screen is a core for realizing the folding of the display screen of the folding terminal, and for accommodating the flexible screen at the bending position in the folding state, a corresponding accommodating space is reserved at the inner arc position of the bending position of the flexible screen in the prior art, but after the display screen is unfolded, the flexible screen is suspended due to the existence of the accommodating space and cannot be connected with other internal components, so that the situation of loose shrinkage occurs. In order to solve the problem, the Chinese patent with the publication number of CN108508970B provides a foldable terminal with a flexible screen, which comprises a shell, two main bodies, a flexible screen, a first air bag and a second air bag, wherein the two main bodies are fixed on the shell, the flexible screen comprises two fixed areas and a bending area, the bending area is connected between the two fixed areas, the first air bag is arranged between the bending part and the bending area, the second air bag is arranged on the main body, the first air bag is communicated with the second air bag, and the two air bags are filled with airtight gas, in a folded state, the airtight gas is positioned in the second air bag, after the airtight gas is unfolded, the airtight gas moves from the second air bag to the first air bag, and the first air bag is bulged and supported on the inner side of the bending area, so that the technical problem that the middle part, namely the bending area, is suspended and the pressing experience is poor after the flexible screen is opened is solved. After folding, under the extrusion of buckling area, first gasbag alright be for the buckling area of flexible screen clearance space bending, avoid buckling area to receive the extrusion and damage. According to the technical scheme, although the supporting function is provided for the unfolded flexible screen through the bulged first air bag, the first air bag and the second air bag are always kept in a communicated state, when the bending area of the flexible screen is pressed, the external force can squeeze the first air bag to enable internal air to flow back to the second air bag again, the first air bag is directly contracted, so that the pressing position of the flexible screen is sunk, and stable supporting cannot be formed. In addition, the first air bag is a flexible cavity and is communicated with the second air bag, so that the air flow in the first air bag is asynchronous and nonuniform during pressing, namely, the pressed position of the first air bag is stressed maximally, the air rapidly flows to the periphery or the second air bag, the pressed position is sunken, the first air bag at the non-pressed position still keeps a bulge state, the flexible screen is not displaced, and the partially sunken and integrally motionless state enables the bending area of the flexible screen to form stress differences at different positions. The flexible screen is a multi-layer composite structure, and long-term stress difference can lead to interlayer stripping and line breakage, so that the service life of the flexible screen is greatly shortened. Disclosure of Invention In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a folding structure of a flexible screen and a folding terminal having the same, which are used for solving the problem that the service life of the flexible screen is shortened due to stress differences at different positions formed in a bending region of the flexible screen in a folded state of the existing folding terminal. To achieve the above and other related objects, the present invention provides the following technical solutions: In a first aspect, the present invention provides a flexible screen folding structure, including a flexible screen, further including: the support assembly is used for bearing the flexible screen and comprises a first rotating part and a second rotating part which are arranged at intervals and are respectively and fixedly connected with the flexible screen; A flexible bending part made of heat-sensitive shape memory material and connected to two sides of the thickness between the first rotating part and the second rotating part to form a holding space for holding the bending part of the flexible screen in a folded state, and And the temperature field generating assembly is used for receiving an external signal to convey heat to the flexible bending part or stop. According to the technical scheme, the flexible bending part receives heat input by the temperature field generating assembly to change modulus according to the folding r