US 11,688,356 B2
Electronic paper display and driving method thereof
Shu-Cheng Liu, Hsinchu (TW); Hsiao-Lung Cheng, Hsinchu (TW); Pei-Lin Tien, Hsinchu (TW); Chi-Mao Hung, Hsinchu (TW); and Wen-Pin Liu, Hsinchu (TW)
Assigned to E Ink Holdings Inc., Hsinchu (TW)
Filed by E Ink Holdings Inc., Hsinchu (TW)
Filed on Mar. 30, 2022, as Appl. No. 17/707,993.
Application 17/707,993 is a continuation in part of application No. 17/182,127, filed on Feb. 22, 2021, granted, now 11,320,930.
Claims priority of application No. 109112430 (TW), filed on Apr. 14, 2020.
Prior Publication US 2022/0223113 A1, Jul. 14, 2022
Int. Cl. G09G 3/34 (2006.01); G06F 3/04883 (2022.01); G06F 3/041 (2006.01)
CPC G09G 3/344 (2013.01) [G06F 3/04166 (2019.05); G06F 3/04883 (2013.01); G09G 2354/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An electronic paper display, comprising:
an electronic paper display panel;
a touch panel, integrated with the electronic paper display panel, and configured to output a first touch coordinate of a current touch and a second touch coordinate of a next touch; and
a processing circuit, coupled to the electronic paper display panel and the touch panel, and configured to execute a filter module and a line drawing module,
wherein the filter module outputs a first measured position data and a first predicted position data to the line drawing module according to the first touch coordinate, and the line drawing module drives the electronic paper display panel to display a first predicted track by a connection line between a first track display coordinate corresponding to the first measured position data and a first predicted display coordinate corresponding to the first predicted position data,
wherein the filter module outputs a second measured position data to the line drawing module according to the second touch coordinate, and the line drawing module determines whether a second track display coordinate corresponding to the second measured position data is equal to the first predicted display coordinate to correct the first predicted track,
wherein the line drawing module generates a pre-drawing data according to the first predicted position data, and a first drawing data according to the first measured position data and the second measured position data,
wherein the line drawing module compares a plurality of predicted coordinates of the pre-drawing data and a plurality of first coordinates of the first drawing data to generate a track correction data for correcting the first predicted track.