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CN-121999676-A - Rollable display device

CN121999676ACN 121999676 ACN121999676 ACN 121999676ACN-121999676-A

Abstract

A rollable display device includes a screen cover, a roll screen mounted in the screen cover, at least a portion of the roll screen being rollable, a roll screen spindle coupled to a rollable end of the roll screen and configured to wind the roll screen around the roll screen spindle in a rolled state, a rolling structure coupled to the roll screen spindle and configured to control the roll screen to be rolled or unrolled, and an unrolling structure configured to change the roll screen released from the roll screen spindle from the rolled state to an unrolled state. According to the application, three modes can be switched according to different application scenes, namely, the display proportion is 16:9 when the scroll screen is normally folded, and the display area can be increased by 11% and 18% when the scroll screen is unfolded upwards, the display screen is set to be adaptive to different display modes through software, the screen width is increased under the condition of unchanged length, portability and usability are achieved, and the flexibility of the electronic product screen is expanded.

Inventors

  • WEI CHAOQUN

Assignees

  • 苏州三星电子电脑有限公司
  • 三星电子株式会社

Dates

Publication Date
20260508
Application Date
20241101

Claims (10)

  1. 1. A rollable display device, comprising: A screen cover plate (1); A reel screen (2), at least part of the reel screen (2) being mounted in the screen cover (1) in a crimpable manner; a reel screen spindle (3) connected to a rollable end of the reel screen (2) and configured to wind the reel screen (2) thereon in a rolled state; a scrolling structure connected to said scrolling screen spindle (3) and configured to control the folding or releasing of said scrolling screen (2), and An unwinding structure configured to change a reel screen (2) released from said reel screen spindle (3) from a curled state to an unwound state.
  2. 2. The rollable screen according to claim 1, wherein the unrolling structure comprises a screen roller (4) and a first fixed plate (5) connected to the screen roller (4), the first fixed plate (5) being configured to push the screen roller (4) to unroll the rolled up screen (2) when the rolled up screen (2) is unrolled.
  3. 3. The rollable display device according to claim 2, wherein the screen roller (4) is sleeved outside a roller spindle (6), and a ball bearing (7) is disposed between the roller spindle (6) and the screen roller (4).
  4. 4. The rollable display device according to claim 2, wherein the unrolled structure includes a vertical movement assembly for controlling movement of the first fixed plate (5), the vertical movement assembly including a rack (8) connected to the first fixed plate (5), a gear (9) connected to the rack (8), and a stepping motor (10) for controlling rotation of the gear (9).
  5. 5. The rollable display device as recited in claim 1, wherein the scrolling structure includes a gear set for controlling rotation of the roller screen spindle (3), a direction control structure for controlling a direction of rotation of the gear set, and a tensioning unit configured to control the gear set to stay in an extended position when the roller screen (2) is extended.
  6. 6. The rollable display device as recited in claim 5, wherein the direction control structure includes a ratchet (10) coupled to the gear set, a pawl (11) coupled to the ratchet (10), a solenoid valve pushrod (12) disposed below the pawl (11), and a solenoid valve (13) coupled to the solenoid valve pushrod (12).
  7. 7. The rollable display device according to claim 6, wherein the tensioning unit includes a ratchet torsion spring (14) coupled to the ratchet (10) and a pawl torsion spring (15) coupled to the pawl (11).
  8. 8. The rollable display device as recited in claim 7, including a mounting base, the ratchet torsion spring (14) is disposed within the mounting base, and the pawl torsion spring (15) is disposed between the mounting base and the pawl (11).
  9. 9. The rollable display device according to claim 6, wherein the gear train is arranged in a direction in which the roller screen (2) is unfolded, and the ratchet (10) is coaxially disposed with a gear at a lowest position of the gear train.
  10. 10. The rollable display device as recited in claim 6, wherein the set of gears includes a first surface and a second surface disposed opposite each other, the set of gears is secured to the screen cover (1) by the first surface, and the direction control structure is disposed on the second surface of the set of gears.

Description

Rollable display device Technical Field The present invention relates generally to the field of electronic products. Background In the prior art, the screen display proportion of the electronic product mainly comprises 16:9, 16:10 and 3:2, and the screen advantages and disadvantages of the 3 proportion comprise that the electronic product with the 16:9 screen has better compatibility to television dramas, movies and games, the disadvantage is that the efficiency is low when the electronic product with the 16:10 screen works in the process of editing characters, programming and the like, the electronic product with the 16:10 screen has the advantages of narrow frame and comprehensive screen, but the portability is reduced due to the increase of the width, and the electronic product with the 3:2 screen has high screen occupation ratio, and more contents can be displayed when office software such as Word, EXCEL and the like is used or video editing is carried out, but the portability is lower due to the larger width. Disclosure of Invention In order to solve the above technical problems, an object of the present invention is to provide a rollable display device capable of changing a screen ratio. In order to achieve the above object, the present invention discloses a rollable display device including a screen cover, a roll screen mounted in the screen cover, at least a portion of the roll screen being rollable, a roll screen spindle connected to a rollable end of the roll screen and configured to wind the roll screen around the roll screen in a rolled state, a rolling structure connected to the roll screen spindle and configured to control the roll screen to be rolled or unrolled, and an unrolling structure configured to change the roll screen released from the roll screen spindle from the rolled state to the unrolled state. A further improvement of the present invention is that the unwind structure comprises a screen drum and a first securing plate connected to said screen drum, said first securing plate being configured to push said screen drum to unwind the curled scroll screen when said scroll screen is unwound. The screen roller is sleeved outside a roller main shaft, and a ball bearing is arranged between the roller main shaft and the screen roller. The invention further improves that the unfolding structure comprises a vertical movement assembly for controlling the movement of the first fixed plate, wherein the vertical movement assembly comprises a rack connected with the first fixed plate, a gear connected with the rack and a stepping motor for controlling the rotation of the gear. The invention is further improved in that the scrolling structure comprises a gear set for controlling the rotation of the spindle of the scroll screen, a direction control structure for controlling the rotation direction of the gear set, and a tensioning unit configured to control the gear set to stay in the unfolded position when the scroll screen is unfolded. The invention further improves that the direction control structure comprises a ratchet wheel connected with the gear set, a pawl connected with the ratchet wheel, a solenoid valve push rod arranged below the pawl and a solenoid valve connected with the solenoid valve push rod. The invention further improves that the tensioning unit comprises a ratchet torsion spring connected with the ratchet wheel and a pawl torsion spring connected with the pawl. The invention further improves the structure that the ratchet wheel torsion spring comprises a mounting base, the ratchet wheel torsion spring is arranged in the mounting base, and the pawl torsion spring is arranged between the mounting base and the pawl. The invention further improves that the gear sets are arranged along the unfolding direction of the scroll screen, and the ratchet wheel and the gear at the lowest part of the gear sets are coaxially arranged. The invention further improves that the gear set comprises a first surface and a second surface which are oppositely arranged, the gear set is fixed on the screen cover plate through the first surface, and the direction control structure is arranged on the second surface of the gear set. By adopting the technical scheme, the lower end of the screen is fixed on the casing, the upper end curled part is wound on a shaft, the upper end curled part can be unfolded upwards and folded downwards through the mechanism, the switching of the three modes of 16:9, 16:10 and 3:2 can be realized according to different application scenes, namely, the display proportion of the scroll screen is 16:9 when the scroll screen is normally folded, the display area can be increased by 11% and 18% when the scroll screen is unfolded upwards, the adaptation conversion of a display picture along with the different display modes can be realized through software setting, and the screen width can be increased under the condition of unchanged length, so that portability and usability are achieve