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1. 发明申请

US20230089428A1 ELECTRO-OPTIC DISPLAYS 有权
公开(公告)号：US20230089428A1
公开(公告)日：2023-03-23
申请号：US18060802
申请日：2022-12-01
申请人： E Ink California, LLC
发明人： Craig LIN , Haiyan GU
IPC分类号： G02F1/1685 , G02F1/167
摘要： A method for driving an electro-optic display, the display having at least one display pixel coupled to a storage capacitor, the method include applying a waveform sequence to the at least one display pixel and connecting the storage capacitor to a first bias voltage, and maintaining a last frame voltage level on the display pixel after the completion of the applied waveform.

2. 发明申请

US20230079869A1 METHOD FOR DRIVING ELECTROPHORETIC DISPLAY DEVICE 有权
公开(公告)号：US20230079869A1
公开(公告)日：2023-03-16
申请号：US17819371
申请日：2022-08-12
申请人： E Ink California, LLC
发明人： Craig LIN , Xiaolong ZHENG
IPC分类号： G09G3/34
摘要： An electrophoretic medium comprises a fluid and first (B), second (Y), third (R) and fourth (W) particles dispersed in the fluid and having differing colors. The first (B) and third (R) particles bear charges of one polarity and the second (Y) and fourth (W) particles bear charges of the opposite polarity, The first particles (B) have a greater zeta potential than the third particles (R), and the second particles (Y) have a greater zeta potential than the fourth particles (W). One of the particles (W) is white, one of the non-white particles (B) is partially light-transmissive, and the remaining two non-white particles are light-reflective. To display the color of a mixture of the first (B) and second (Y) particles at a viewing surface, the medium is driven to display the second particles (Y) at the viewing surface, then a first driving voltage is applied for a first period to drive the second (Y) and fourth (W) particles towards the viewing surface, then a second driving voltage, of opposite polarity to and lower magnitude than, the first voltage, is applied for a second period less than the first period, and finally the applications of the two driving voltages are repeated.

3. 发明授权

US11580920B2 Synchronized driving waveforms for four-particle electrophoretic displays 有权
公开(公告)号：US11580920B2
公开(公告)日：2023-02-14
申请号：US17751946
申请日：2022-05-24
申请人： E Ink California, LLC
发明人： Chih-Yu Cheng , Craig Lin , Ning-Wei Jan , Chen-Kai Chiu , Feng-Shou Lin
IPC分类号： G09G3/34
摘要： The present invention provides improved driving methods for four particle electrophoretic displays. The driving methods improve the color state performance when a first pixel is displaying a mixed state of a first highly-charged particle and a second lower-charged particle of the opposite polarity, while a neighboring pixel is displaying a state of a second highly-charged particle having the opposite polarity to the first highly-charged particle. The particles can be, for example, all reflective or one type of particle can be partially light transmissive.

4. 发明申请

US20230014009A1 BENEFIT AGENT DELIVERY SYSTEM UTILIZING AN ELECTRIC FIELD 有权
公开(公告)号：US20230014009A1
公开(公告)日：2023-01-19
申请号：US17851735
申请日：2022-06-28
申请人： E INK CALIFORNIA, LLC
发明人： Madhuvanthi Agaram KANDADAI , HongMei ZANG
IPC分类号： A61L9/12 , A61N1/40 , A61L9/04 , A61K9/00
摘要： A benefit agent delivery system can deliver benefit agents on demand. The benefit agent delivery system comprises a first electrode layer, a microcell layer comprising a plurality of microcells, and a porous second electrode layer. Each of the plurality of microcells are filled with a liquid mixture comprising reverse micelles in a hydrophobic liquid that are formed from a polar liquid, a surfactant or stabilizing particles, and a benefit agent. Application of an electric field across a microcell layer causes an increase in the rate of release of the benefit agent of the microcell through the porous second electrode layer.

5. 发明授权

US11537024B2 Electro-optic displays 有权
公开(公告)号：US11537024B2
公开(公告)日：2022-12-27
申请号：US16729567
申请日：2019-12-30
申请人： E Ink California, LLC
发明人： Craig Lin , Haiyan Gu
IPC分类号： G02F1/1685 , G02F1/167
摘要： A method for driving an electro-optic display, the display having at least one display pixel coupled to a storage capacitor, the method include applying a waveform sequence to the at least one display pixel and connecting the storage capacitor to a first bias voltage, and maintaining a last frame voltage level on the display pixel after the completion of the applied waveform.

6. 发明申请

US20220398956A1 METHODS AND APPARATUSES FOR DRIVING ELECTRO-OPTIC DISPLAYS 有权
公开(公告)号：US20220398956A1
公开(公告)日：2022-12-15
申请号：US17806599
申请日：2022-06-13
申请人： E INK CALIFORNIA, LLC
发明人： Craig LIN , Ming WANG
IPC分类号： G09G3/00 , G09G3/34 , G06K7/14
摘要： The invention provides methods and related apparatuses for reducing an edge effect in an image displayed on an electrophoretic display having an array of pixels by displaying an image made up of a plurality of pixels on a first subset of the array of pixels and shifting the value of each image pixel by one position in a first horizontal direction and a first vertical direction such that the image is identical but shifted in position to a second subset of the pixel array. The method also includes shifting the value of each image pixel by one position in a second horizontal direction and a second vertical direction where the second horizontal direction is opposite the first horizontal direction, and the second vertical direction is opposite the first vertical direction, whereby the image displayed is identical but shifted in position back to the first subset of the array of pixels.

7. 发明申请

US20220372649A1 BENEFIT AGENT DELIVERY SYSTEM USING ELECTROPLATING 有权
公开(公告)号：US20220372649A1
公开(公告)日：2022-11-24
申请号：US17747339
申请日：2022-05-18
申请人： E Ink California, LLC
发明人： Lei LIU
IPC分类号： C25F5/00 , C25D7/04
摘要： A benefit agent delivery system whereby benefit agents can be delivered on demand. The benefit agent delivery system comprises a first electrode layer, a microcell layer, a sealing layer, and a second electrode layer. The microcell layer comprises a plurality of microcells, each microcell of the plurality of microcells containing a carrier and a benefit agent, and a metallic layer spanning an opening of each microcell of the plurality of microcells. Application of an electric field across a microcell causes the removal of at least a portion of the metallic layer from the microcell opening, and enabling the benefit agent to be delivered from the benefit agent delivery system.

8. 发明授权

US11462182B2 Methods for achieving color states of lesser-charged particles in electrophoretic medium including at least four types of particles 有权
公开(公告)号：US11462182B2
公开(公告)日：2022-10-04
申请号：US17337628
申请日：2021-06-03
申请人： E INK CALIFORNIA, LLC
发明人： Craig Lin , Feng-Shou Lin
IPC分类号： G09G3/34
摘要： Methods for driving an electrophoretic medium including two pairs of oppositely charged particles. The first pair including a first type of positive particles and a first type of negative particles and the second pair consists of a second type of positive particles and a second type of negative particles, wherein the first pair of particles and the second pair of particles have different charge magnitudes (identifiable as zeta potentials). In particular, the driving methods produce cleaner optical stakes of the lesser-charged particles with less contamination from the other particles and more consistent electro-optical performance when the intermediate driving voltages are modified.

9. 发明申请

US20220215807A1 ELECTRO-OPTIC DISPLAYS AND DRIVING METHODS 有权
公开(公告)号：US20220215807A1
公开(公告)日：2022-07-07
申请号：US17704266
申请日：2022-03-25
申请人： E INK CALIFORNIA, LLC
发明人： Shang-Chia CHEN , Yajuan CHEN , Craig LIN
IPC分类号： G09G3/34 , G02F1/167
摘要： A driving method for driving an electrophoretic display comprising four types of particles, the first type of particles and the third type of particles are positively charged, and the second type of particles and the fourth type of particles are negatively charged, the method comprises the steps of: (i). applying a first driving voltage to the pixel of the electrophoretic display for a first period of time at a first amplitude to drive the pixel to a color state of the fourth type of particle at the viewing side; and (ii). applying a second driving voltage to the pixel of the electrophoretic display for a second period of time, opposite to that of the first driving voltage and a second amplitude smaller than that of the first amplitude, to drive the second type particle towards the non-viewing side.

10. 发明授权

US11266832B2 Electrophoretic active delivery system including porous conductive electrode layer 有权
公开(公告)号：US11266832B2
公开(公告)日：2022-03-08
申请号：US16186808
申请日：2018-11-12
申请人： E Ink California, LLC
发明人： Lei Liu
IPC分类号： A61N1/32 , A61N1/04 , A61K9/70
摘要： An active molecule delivery system whereby active molecules can be released on demand and/or a variety of different active molecules can be delivered from the same system and/or different concentrations of active molecules can be delivered from the same system. The active molecule delivery system includes a first electrode, a plurality of microcells, and a porous conductive layer. The microcells are filled with a medium including active molecules.

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