US 11,810,526 B2
E-paper display apparatus and e-paper display panel
Wei-Tsung Chen, Hsinchu (TW); and Xue-Hung Tsai, Hsinchu (TW)
Assigned to E Ink Holdings Inc., Hsinchu (TW)
Filed by E Ink Holdings Inc., Hsinchu (TW)
Filed on Sep. 20, 2022, as Appl. No. 17/949,182.
Claims priority of application No. 110144978 (TW), filed on Dec. 2, 2021.
Prior Publication US 2023/0178040 A1, Jun. 8, 2023
Int. Cl. G09G 3/34 (2006.01)
CPC G09G 3/344 (2013.01) [G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An e-paper display apparatus, comprising:
an e-paper display panel comprising a plurality of pixel circuits arranged in an array, wherein each of the pixel circuits comprises a transistor device, wherein the transistor device is an oxide thin-film transistor, a set of a plurality of signal waveforms for driving the pixel circuits to display an image page comprises a plurality of frames, and in a low panel frequency mode, a number of the frames is less than ten,
wherein each of the pixel circuits further comprises a storage capacitor coupled to the transistor device, and a capacitance density of the storage capacitor is greater than 50 μF/m2.