US 12,354,510 B2
Foldable display device and driving method of foldable display device
Yajun Hei, Wuhan (CN); Guang Wang, Wuhan (CN); and Zhihua Yu, Wuhan (CN)
Assigned to Wuhan Tianma Microelectronics Co., Ltd., Wuhan (CN)
Filed by Wuhan Tianma Microelectronics Co., Ltd., Wuhan (CN)
Filed on Apr. 19, 2024, as Appl. No. 18/640,895.
Claims priority of application No. 202310487462.X (CN), filed on Apr. 28, 2023.
Prior Publication US 2024/0265840 A1, Aug. 8, 2024
Int. Cl. G09G 3/00 (2006.01); G06T 7/73 (2017.01)
CPC G09G 3/035 (2020.08) [G06T 7/73 (2017.01); G09G 2360/145 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A foldable display device, comprising:
a foldable screen comprising a first surface and a second surface which are disposed oppositely along a thickness direction of the foldable screen, wherein the first surface or the second surface is a target display surface, and at least one of the first surface and the second surface displays an alignment image, wherein the alignment image has different pieces of characteristic information in at least two different regions;
an image sensor located at an edge of the foldable screen and configured to collect an alignment image in an opposed region of the image sensor after the foldable screen is folded; and
a driving display unit electrically connected to the image sensor and configured to, according to characteristic information of the alignment image in the opposed region of the image sensor, determine a position of the opposed region of the image sensor, and according to the position of the opposed region of the image sensor, determine a folded state of the foldable screen.