Inventor
DE GREEF PETRUS MARIA
NL32 patents
⚠️ This page may combine multiple inventors who share the name “DE GREEF PETRUS MARIA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMAZON TECH INC
23 patentsUS10043459B1Aug 7, 2018
Display timing controller with single-frame buffer memory
AMAZON TECH INC17 citations85
US10043456B1Aug 7, 2018
Controller and methods for adjusting performance properties of an electrowetting display device
AMAZON TECH INC18 citations85
US10490141B1Nov 26, 2019
Reset pulse control to manage flicker of an electrowetting display device
AMAZON TECH INC2 citations73
US10297211B1May 21, 2019
Photo sensitive control for an electrowetting display device
AMAZON TECH INC4 citations73
US10074321B2Sep 11, 2018
Controller and methods for quantization and error diffusion in an electrowetting display device
AMAZON TECH INC2 citations73
US9824637B2Nov 21, 2017
Reducing visual artifacts and reducing power consumption in electrowetting displays
AMAZON TECH INC5 citations73
US9740000B2Aug 22, 2017
Electrowetting display device with shaped colour filter
AMAZON TECH INC3 citations73
US9798133B2Oct 24, 2017
Electrowetting element with white filter
AMAZON TECH INC2 citations72
US10269311B2Apr 23, 2019
Control system for an electrowetting display device with memory controller
AMAZON TECH INC1 citations62
US10311805B2Jun 4, 2019
System and method for driving electrowetting display device
AMAZON TECH INC0 citations52
US9728143B2Aug 8, 2017
System and method for driving electrowetting display device
AMAZON TECH INC0 citations52
US9659534B2May 23, 2017
Reducing visual artifacts and reducing power consumption in electrowetting displays
AMAZON TECH INC1 citations52
US9952423B2Apr 24, 2018
Method of controlling an electrowetting element with stable fluid configurations
AMAZON TECH INC1 citations51
US9423607B1Aug 23, 2016
Configuration of electrowetting elements in an array
AMAZON TECH INC1 citations51
US10255835B2Apr 9, 2019
Luminance and reducing power consumption in electrowetting displays
AMAZON TECH INC0 citations41
US10241320B2Mar 26, 2019
Electrowetting element with shaped support plate surface portion
AMAZON TECH INC0 citations41
US10235948B2Mar 19, 2019
Electrowetting element with stable fluid configurations
AMAZON TECH INC0 citations41
US10127868B2Nov 13, 2018
Method of controlling subpixels in an array of electrowetting elements
AMAZON TECH INC0 citations41
US9904048B2Feb 27, 2018
Electrowetting display device with shaped colour filter
AMAZON TECH INC0 citations41
US9865200B2Jan 9, 2018
System and method for driving electrowetting display device
AMAZON TECH INC0 citations41
US9746663B2Aug 29, 2017
Electrowetting pixel with two electrowetting elements
AMAZON TECH INC0 citations41
US9453998B1Sep 27, 2016
Distribution of subpixels in an electrowetting element
AMAZON TECH INC0 citations41
US10067335B1Sep 4, 2018
Electrowetting element with shaped color filter
AMAZON TECH INC0 citations33
DE GREEF PETRUS MARIA
5 patentsUS8193741B2Jun 5, 2012
Boosting driver circuit for light-emitting diodes
DE GREEF PETRUS MARIA3 citations60
US8836770B2Sep 16, 2014
3D display
DE GREEF PETRUS MARIA0 citations50
US8723778B2May 13, 2014
Overdrive technique for display drivers
DE GREEF PETRUS MARIA1 citations50
US8466924B2Jun 18, 2013
Displaying on a matrix display
DE GREEF PETRUS MARIA1 citations50
US8537076B2Sep 17, 2013
Video circuit
DE GREEF PETRUS MARIA0 citations38