Foldable electronic paper display device and manufacturing method thereof

A technology of display equipment and electronic paper, which is applied in the direction of instruments, identification devices, etc., and can solve problems such as stress concentration, detachment of protective sheets, and rupture of display medium layers
CN108665804AInactive Publication Date: 2018-10-16E INK HLDG INC
7 Cites 20 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
E INK HLDG INC
Publication Date
2018-10-16
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a foldable electronic paper display device and a manufacturing method of the foldable electronic paper display device. The foldable electronic paper display device comprises anelectronic paper display panel and a rear protection plate, wherein the electronic paper display panel is provided with a bent area and two plane areas respectively being adjacent to two edges of thebent area. When the electronic paper display panel is folded, the two plane areas are approximately parallel to each other. The rear protection plate is positioned on the back of the electronic paperdisplay panel, and is positioned in the plane areas and the bent area. The rear protection plate is provided with at least one groove, the at least one groove is at least partially positioned in thebent area, and the width of the at least one groove is smaller than that of the bent area. The rear protection plate is provided with the at least one groove positioned in the bent area, therefore, the internal stress between the layers can be reduced in the bent area with large strain differences, and thus the rear protection plate is prevented from being separated from the back of the electronicpaper display panel.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a foldable electronic paper display device and a manufacturing method of the foldable electronic paper display device. Background technique

[0002] Due to the advent of flexible panels (such as electronic paper display panels), foldable display devices have appeared in the current electronic product market. Generally speaking, in order to protect the front and back of the flexible panel, two protective sheets are used to cover the front and back of the flexible panel respectively.

[0003] However, when the flexible panel is bent along the center line, the two protective sheets are located on opposite sides of the flexible panel, so there will be a maximum amount of deformation to generate interlayer internal stress. As a result, in regions with large strain differences, delamination may occur between layers of the display device, for example, the protective sheet is detached from the surface of the flexible panel. In additi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More