Kilpatrick Townsend & Stockton, LLP
Rollable display device
A rollable display device including a rollable display module is provided. The rollable display module includes a hard film group and a flexible film group that are stacked, the hard film group has a greater overall Young's modulus than the flexible film group, and the rollable display device has a rolled state and an unrolled state; the hard film group includes a first surface facing away from the flexible film group in the unrolled state; the rollable display module is rolled towards the first surface in the rolled state; a minimum thickness of the flexible film group is D1, a thickness of the hard film group is D2, and D1/(D1+D2)>πn/M, where n is a positive number that represents a preset number of rolling turns of the rollable display module, and M represents a failure strain of the flexible film group under a shearing stress.
SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
H H G H H H G
H01L H01L G09F H01L H01L H01L G06F
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Qijun Qing
Yao Zhang