Reel and flexible display device
A reel and flexible screen technology, applied in the direction of identification devices, instruments, etc., can solve the problems of poor stability, uneven force on the reel, affecting the performance of flexible display devices, etc., to achieve the effect of improving stability and avoiding stress concentration
Active Publication Date: 2021-03-02
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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Problems solved by technology
However, for this kind of roll-up flexible display device, since the flexible screen is winding on the reel, the stress concentration at the overlapping position of the flexible screen and the reel is obvious during each turn of the flexible screen on the reel. , due to the uneven force on the reel, the stability of the movement during the rotation is deteriorated, which affects the performance of the flexible display device
Method used
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[0018] Features and exemplary embodiments of various aspects of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.
[0019] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is i...
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The invention discloses a scroll and a flexible display device. The scroll comprises a scroll outer surface; the scroll outer surface at least comprises a first arc surface and a second arc surface, the scroll is provided with a rotating shaft center, and the orthographic projection of the scroll outer surface on a first virtual plane at least comprises a first arc section with a first circle center; a second arc-shaped section provided with a second circle center; a first transition section which is smoothly connected with one end of the first arc-shaped section and one end of the second arc-shaped section, wherein a section difference L1 exists between the other end of the first arc-shaped section and the other end of the second arc-shaped section, the first arc-shaped section comprisesa first end away from the first transition section, and the second arc-shaped section comprises a second end away from the first transition section; the distance from the second end to the rotating shaft center is greater than that from the first end to the rotating shaft center; the orthographic projection of the scroll outer surface on the first virtual plane is provided with a central area, andthe rotating shaft center is located in the central area. According to the scroll and the flexible display device provided by the invention, the movement stability of the scroll during winding of theflexible screen is improved, and the stress concentration during winding of the flexible screen is avoided.
Description
technical field [0001] The invention belongs to the field of display technology, in particular to a scroll and a flexible display device. Background technique [0002] With the development of portable electronic equipment, due to the bending performance of the flexible display device, a larger display interface can be obtained in the use state, and it can be bent for portability in the non-use state, which is favored by more users. At present, for a roll-up flexible display device, it has a large screen ratio when unfolded, and needs to be wound on a reel when rolled up for easy portability. However, for this kind of roll-up flexible display device, since the flexible screen is winding on the reel, the stress concentration at the overlapping position of the flexible screen and the reel is obvious during each turn of the flexible screen on the reel. , due to the uneven force on the reel, the stability of the reel's motion during the rotation process is degraded, which affect...
Claims
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IPC IPC(8): G09F9/30
CPCG09F9/301
Inventor 魏乔乔
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD