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1. 发明授权

US12094429B2 Method for driving electrophoretic display device 有权
公开(公告)号：US12094429B2
公开(公告)日：2024-09-17
申请号：US18475643
申请日：2023-09-27
申请人： E INK CORPORATION
发明人： Craig Lin , Xiaolong Zheng
IPC分类号： G09G3/34
CPC分类号： G09G3/344 , G09G2310/0254
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.

2. 发明公开

US20240257732A1 PIXEL DRIVING CIRCUIT AND DRIVING METHOD THEREOF, AND DISPLAY PANEL 审中-公开
公开(公告)号：US20240257732A1
公开(公告)日：2024-08-01
申请号：US18014763
申请日：2021-07-30
申请人： CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. , BOE TECHNOLOGY GROUP CO., LTD.
发明人： Huaping SUN , Kai ZHANG , Erlong SONG , Qiang FU , Xingrui CAI
IPC分类号： G09G3/3233
CPC分类号： G09G3/3233 , G09G2300/0426 , G09G2300/0819 , G09G2300/0842 , G09G2300/0852 , G09G2310/0254 , G09G2310/08 , G09G2320/0233 , G09G2320/0247 , G09G2320/0257 , G09G2320/045
摘要： A pixel driving circuit includes a driving circuit, a first reset circuit, and a second reset circuit. The driving circuit is coupled to a first node and a second node, and is configured to output a driving current according to a voltage difference between the first node and the second node. The first reset circuit is coupled to the first node, a first initial signal terminal and a first reset signal terminal, and is configured to transmit a signal of the first initial signal terminal to the first node in response to a signal of the first reset signal terminal. The second reset circuit is coupled to the second node and a first power terminal, and is configured to transmit a signal of the first power supply terminal to the second node in response to a control signal.

3. 发明授权

US11917880B2 Display device 有权
公开(公告)号：US11917880B2
公开(公告)日：2024-02-27
申请号：US17941207
申请日：2022-09-09
申请人： Samsung Display Co., LTD.
发明人： Min Hee Choi , Ji-Eun Lee , Jin Tae Jeong , Yun Sik Joo
IPC分类号： H10K59/131 , G09G3/3258 , G09G3/3233 , G09G3/36
CPC分类号： H10K59/1315 , G09G3/3258 , G09G3/3233 , G09G3/3659 , G09G2300/043 , G09G2300/0426 , G09G2300/0809 , G09G2300/0819 , G09G2300/0842 , G09G2310/0202 , G09G2310/0254
摘要： A display device includes a light emitting diode electrically connected between a driving voltage line and a common voltage line; a driving transistor electrically connected between the driving voltage line and the light emitting diode; a second transistor electrically connected between a first electrode of the driving transistor electrically connected to the driving voltage line and a data line; a first scan line electrically connected to a gate electrode of the second transistor; a third transistor electrically connected between a second electrode of the driving transistor electrically connected to the light emitting diode and a gate electrode of the driving transistor; and a connection electrode that connects the gate electrode of the driving transistor and the third transistor, wherein at least a part of a contact portion where the connection electrode contacts the third transistor does not overlap the first scan line.

4. 发明授权

US11881167B2 Pixels, display device comprising pixels, and driving method therefor 有权
公开(公告)号：US11881167B2
公开(公告)日：2024-01-23
申请号：US17609122
申请日：2019-11-08
申请人： Samsung Display Co., Ltd.
发明人： Il Hun Jeong
IPC分类号： G09G3/3233
CPC分类号： G09G3/3233 , G09G2300/0842 , G09G2310/0254 , G09G2310/08 , G09G2320/0214
摘要： In a pixel, a display device including a pixel, and a method of driving the display device, the pixel includes a first transistor connected to a first power source, a fourth node and a first node, a second transistor connected to a third node, a data line and an i-th first scan line, a third transistor connected to the first node, the fourth node, and an i-th third scan line, a fourth transistor connected to the second node, an initialization voltage, and an i-th second scan line, a first capacitor connected between the third node and the first node, a second capacitor connected between the first node and the second node, and an organic light emitting diode connected between the second node and a second power source, wherein I is a natural number and the third transistor is an N-type transistor.

5. 发明公开

US20230402002A1 PIXEL DRIVING CIRCUIT, PIXEL DRIVING METHOD AND DISPLAY PANEL 审中-公开
公开(公告)号：US20230402002A1
公开(公告)日：2023-12-14
申请号：US18067460
申请日：2022-12-16
申请人： HKC CORPORATION LIMITED
发明人： Renjie ZHOU , Haijiang YUAN
IPC分类号： G09G3/3208
CPC分类号： G09G3/3208 , G09G2300/0819 , G09G2310/0202 , G09G2310/08 , G09G2310/0254 , G09G2330/021 , G09G2300/0426
摘要： A pixel driving circuit includes a first pixel circuit and a second pixel circuit. The first pixel circuit and the second pixel circuit are respectively connected to a first scan line and a second scan line and a first data line and a second data line with opposite polarities. The pixel driving circuit further includes a charge share switch, a control terminal of the charge share switch is connected to the second scan line, a first terminal of the charge share switch is connected to the first pixel circuit, and a second terminal of the charge share switch is connected to the second pixel circuit.

6. 发明公开

US20230389371A1 DISPLAY DEVICE 审中-公开
公开(公告)号：US20230389371A1
公开(公告)日：2023-11-30
申请号：US18446874
申请日：2023-08-09
申请人： Samsung Display Co., LTD.
发明人： Yoon-Jong CHO , Seok Je SEONG , Seong Jun LEE
IPC分类号： H10K59/126 , G09G3/3233 , H10K59/121
CPC分类号： H10K59/126 , G09G3/3233 , H10K59/1213 , G09G2310/0254 , H01L27/1225
摘要： A display device includes a polycrystalline semiconductor including a channel and electrodes of a driving transistor; a gate electrode of the driving transistor on the channel of the driving transistor; a first storage electrode on the gate electrode of the driving transistor; a light blocking layer of a first transistor and a light blocking layer of a second transistor; an oxide semiconductor including a channel and electrodes of the first transistor, and a channel and electrodes of the second transistor; a gate electrode of the first transistor on the channel of the first transistor; and a gate electrode of the second transistor on the channel of the second transistor. The light blocking layer of the first transistor and the first storage electrode are on a same layer, and the light blocking layer of the second transistor and the gate electrode of the driving transistor are on a same layer.

7. 发明授权

US11804190B2 Method for driving electrophoretic display device 有权
公开(公告)号：US11804190B2
公开(公告)日：2023-10-31
申请号：US18191592
申请日：2023-03-28
申请人： E INK CALIFORNIA, LLC
发明人： Craig Lin , Xiaolong Zheng
IPC分类号： G09G3/34
CPC分类号： G09G3/344 , G09G2310/0254
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.

8. 发明授权

US11790865B1 Image processing method, storage medium, and display device 有权
公开(公告)号：US11790865B1
公开(公告)日：2023-10-17
申请号：US18216279
申请日：2023-06-29
申请人： HKC Corporation Limited
发明人： Mancheng Zhou , Zhi Xiong , Baohong Kang
IPC分类号： G09G3/36 , G06V10/75
CPC分类号： G09G3/3614 , G06V10/751 , G09G2310/0254
摘要： An image processing method and apparatus, a storage medium, and a display device are provided in the present disclosure. The image processing method is used for image processing on the display device. The method includes the following. Target image data is received. Picture detection is performed on the target image data. Polarity adjustment is executed on a signal transmission line of the display device when the target image data satisfies a first grayscale-condition and/or a first area-condition. Exit polarity adjustment when the target image data satisfies a second grayscale-condition or a second area-condition, where a condition range in which the second grayscale-condition is satisfied is less than a condition range in which the first grayscale-condition is not satisfied, and a range in which the second area-condition is satisfied is less than a range in which the first area-condition is not satisfied. A non-transitory computer-readable storage medium and a display device are provided.

9. 发明授权

US11765946B2 Display device 有权
公开(公告)号：US11765946B2
公开(公告)日：2023-09-19
申请号：US18085749
申请日：2022-12-21
申请人： Samsung Display Co., LTD.
发明人： Yoon-Jong Cho , Seok Je Seong , Seong Jun Lee
IPC分类号： H10K59/126 , G09G3/3233 , H10K59/121 , H01L27/12 , H01L29/786 , H01L29/04 , G09G3/3208 , H10K50/86 , H10K59/12 , H10K59/131
CPC分类号： H10K59/126 , G09G3/3233 , H10K59/1213 , G09G3/3208 , G09G2300/0426 , G09G2300/0819 , G09G2300/0852 , G09G2310/0254 , G09G2320/0238 , H01L27/1222 , H01L27/1225 , H01L27/1251 , H01L29/04 , H01L29/7869 , H01L29/78672 , H01L29/78675 , H10K50/865 , H10K59/12 , H10K59/1216 , H10K59/131
摘要： A display device includes a polycrystalline semiconductor including a channel and electrodes of a driving transistor; a gate electrode of the driving transistor on the channel of the driving transistor; a first storage electrode on the gate electrode of the driving transistor; a light blocking layer of a first transistor and a light blocking layer of a second transistor; an oxide semiconductor including a channel and electrodes of the first transistor, and a channel and electrodes of the second transistor; a gate electrode of the first transistor on the channel of the first transistor; and a gate electrode of the second transistor on the channel of the second transistor. The light blocking layer of the first transistor and the first storage electrode are on a same layer, and the light blocking layer of the second transistor and the gate electrode of the driving transistor are on a same layer.

10. 发明授权

US11756501B2 Display apparatus output circuit selectively providing positive and negative voltages realized in reduced area in a simple configuration 有权
公开(公告)号：US11756501B2
公开(公告)日：2023-09-12
申请号：US17672655
申请日：2022-02-15
申请人： LAPIS Technology Co., Ltd.
发明人： Hiroshi Tsuchi
IPC分类号： G09G3/36
CPC分类号： G09G3/3696 , G09G3/3688 , G09G2310/0254 , G09G2310/0272
摘要： An output circuit includes a first switch that outputs a positive voltage signal received via a first node when in an ON state, a second switch that outputs a negative voltage signal received via a second node when in an ON state, third and fourth switches that set the first and second nodes to a reference power supply voltage when in an ON state, a first voltage follower circuit that supplies a voltage obtained by shifting a voltage of the positive voltage signal supplied to the first node to a negative side by a predetermined voltage difference to a gate of the first switch, and a second voltage follower circuit that supplies a voltage obtained by shifting a voltage of the negative voltage signal supplied to the second node to a positive side by a predetermined voltage difference to a gate of the second switch.

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