序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 Driving method for liquid crystal display device JP25840392 1992-09-28 JPH06110035A 1994-04-22 KAWACHI YUJI
PURPOSE: To obtain a fine image with high resolution by the active matrix display device by lowering the level of a flicker which causes the display quality to decrease while the irregularity of the flicker on a screen due to an increase in the capacity of gate lines for high density is a technical problem. CONSTITUTION: The rising waveform of a scanning line waveform is, for example, a ramp waveform, exponential function waveform, or staircase waveform. Thus, high frequency components are made small to reduce the potential drop of a pixel potential waveform outputted by a high-pass filter consisting of a transistor, a parasitic capacitance between scanning lines, and a resistance used by regarding the transistor as a variable resistance. Consequently, the flicker can be suppressed low and the image of high quality is obtained. COPYRIGHT: (C)1994,JPO&Japio
162 显示面板及其像素电路 CN201721382534.0 2017-10-25 CN207352947U 2018-05-11 李威龙; 尤彦文; 张纬峰
本实用新型提供一种显示面板及其像素电路。像素电路包括第一晶体管、第二晶体管、电容、存储电容以及像素电容。第一晶体管的第一端耦接至源极线,其控制端耦接至栅极线。第二晶体管的第一端耦接至第一晶体管的第二端,第二晶体管的控制端耦接至栅极线。电容的第一端耦接至第一晶体管的第二端,电容的第二端接收共用电压。存储电容串接在第二晶体管的第二端以及共用电压间。像素电容串接在第二晶体管的第二端以及共用电压间。其中,电容用以维持像素电容上的电压电平,并维持显示质量。可防止像素电容的电荷产生漏电的现象,且可降低穿通电压(feed through voltage)对像素电压所造成的影响,维持显示的质量。
163 METHODS AND APPARATUS FOR DRIVING ELECTRO-OPTIC DISPLAYS EP16891882.9 2016-11-04 EP3420553A1 2019-01-02 BEN-DOV, Yuval; AMUNDSON, Karl Raymond
The performance of an electro-optic display, for example, a bistable electro-optic display, can be improved by modifying the frame rate of a base waveform used to drive a transition between gray states. Such modifications permit fine control of gray levels with reduced artifacts. The described methods require less memory to store all of the waveforms needed to achieve good performance of an electro-optic display over a range of temperatures.
164 DISPLAY PANEL DRIVING CIRCUIT, DISPLAY PANEL DRIVING METHOD, AND DISPLAY DEVICE EP16883315.0 2016-10-31 EP3400594A1 2018-11-14 WANG, Jianming; SUN, Zhihua; SU, Guohuo; ZHANG, Xu; ZHANG, Zhihao
The present disclosure provides a display panel driving circuit, including: a master source driving circuit, a slave source driving circuit, and a gate electrode driving circuit. The master source driving circuit is configured to convert an input control signal from an external display control board to a first data-driving control signal and a first gate-driving control signal, and convert a first data signal from the external display control board to a second data signal. The slave source driving circuit is coupled to the master source driving circuit and data lines of a display panel, and is configured to receive the first data-driving control signal and the second data signal. The gate electrode driving circuit is coupled to the master source driving circuit and gate lines of the display panel, and is configured to receive a first gate-driving control signal.
165 COMPENSATION PIXEL CIRCUIT AND DISPLAY DEVICE EP14861144 2014-09-30 EP3142099A4 2017-10-18 MA ZHANJIE
There are provided a compensation pixel circuit and a display apparatus. The compensation pixel circuit comprises an organic light emitting diode (D1) and a driving transistor (M1), a first terminal of the driving transistor (M1) being connected to an anode of the organic light emitting diode (D1). The compensation pixel circuit further comprises: a resetting module, a data voltage writing module, a light emitting control module and a switching module. The resetting module includes a capacitor (C1) whose first terminal is connected to a gate of the driving transistor (M1) and configured to make the gate of the driving transistor (M1) discharge so that a gate voltage is reduced to a magnitude of a threshold voltage of the organic light emitting diode (D1). The data voltage writing module is configured to discharge at the gate of the driving transistor (M1) so as to connect a data voltage to a second terminal of the driving transistor (M1) after the gate voltage is made reduced to the magnitude of the threshold voltage of the organic light emitting diode (D). The light emitting control module is configured to connect a source of the driving transistor (M1) and a second terminal of the capacitor (C1) to an operating voltage at a high level after data voltage writing is completed. The switching module is configured to disconnect the driving transistor (M1) from the organic light emitting diode (D1) when the data voltage is connected to the second terminal of the driving transistor (M1). The compensation pixel circuit can compensate for the threshold voltage offset, and reduce the influence of signals from frame to frame greatly.
166 DISPLAY DEVICE SUBSTRATE, DISPLAY DEVICE, ELECTRONIC APPARATUS, CONTROL METHOD FOR DISPLAY DEVICE, AND MANUFACTURING METHOD FOR DISPLAY DEVICE SUBSTRATE EP16168332.1 2016-05-04 EP3091391B1 2017-09-13 Miyata, Takashi
167 CONTROL DEVICE, CONTROL METHOD, AND PROGRAM EP15846926.2 2015-09-08 EP3203464A1 2017-08-09 MAYAMA, Ichiro; KIKUCHI, Hidenori; TANAKA, Kayoko

Provided is a configuration for executing display information output control with improved visibility of a user wearable or portable display unit. A controller configured to execute display information output control on a user wearable or portable display unit is included. The controller sets a turning on (ON) period and a turning off (OFF) period and controls switching between afterimage consideration pulse display having the turning off period being set to be within an afterimage recognition period and normal pulse display having the turning off period being set to be longer than or equal to the afterimage recognition period, the turning on (ON) period being an output period of display information to the display unit, the turning off (OFF) period being a non-output period of display information to the display unit. The controller executes the switching control between the afterimage consideration pulse display and the normal pulse display depending on eye velocity of a user. The controller executes the afterimage consideration pulse display in a case where eye velocity of the user is less than a threshold and executes the normal pulse display in a case where the eye velocity is more than or equal to the threshold.

168 METHOD OF DRIVING DISPLAY PANEL AND DISPLAY APPARATUS FOR PERFORMING THE SAME EP16177014.4 2016-06-29 EP3113167A1 2017-01-04 CHO, Se-Hyoung; KIM, Hyun-Joon; LEE, Cheol-Gon; KANG, Jangmi; JUNG, Mee-Hye; KIM, Jong-Hee

A method of driving a display panel includes providing a positive polarity data signal to a first data line during an odd-numbered frame, and providing a negative polarity data signal to the first data line during an even-numbered frame. The positive polarity data signal has a first polarity. The negative polarity data signal has a second polarity. Output timing of the positive polarity data signal is different from output timing of the negative polarity data signal.

169 DISPLAY PANEL, PIXEL CHIP, AND ELECTRONIC APPARATUS EP13870825 2013-12-20 EP2945148A4 2016-11-30 SUZUKI HIDEYUKI; MIYAUCHI TOSHIYUKI; UENO YOSUKE; MIYAJIMA YOSHIFUMI; HATTORI MASAYUKI; TAKANOHASHI KAZUKUNI; TOGASHI HARUO; IKEDA TAMOTSU; OOTORII HIIZU; TANAKA SACHIYA
A display panel includes a plurality of first unit pixels (Pix) each including: a first data input terminals (PDIN); a first data output terminal (PDOUT); a display element (48); and a first waveform shaping section (42, 22), in which the display element (48) is configured to perform display based on first data (PD) inputted to the first data input terminal (PDIN), and the first waveform shaping section (42, 44) is provided on a signal path from the first data input terminal (PDIN) to the first data output terminal (PDOUT).
170 REFLECTIVE DISPLAY DEVICE AND CONTROLLING METHOD THEREOF EP14763632 2014-03-13 EP2975454A4 2016-10-12 JOO JAE HYUN; LEE DONG JIN; PARK SA RANG
A reflective display device according to the present invention includes a display part including a fluid having dispersed therein particles having charges, an electric field applying unit including an electrode for applying an electric field to the display part, and a controller for controlling a color of light emitted from the display part, by adjusting at least one of an intensity, polarity, application time, number of applications, and application cycle of a voltage applied to the electric field applying unit, wherein the controller resets an alignment state of the particles by applying a driving voltage for controlling the color of light emitted from the display part, and then applying an alternating-current (AC) voltage having a polarity opposite to that of the driving voltage.
171 METHOD OF DRIVING A DISPLAY PANEL AND A DISPLAY APPARATUS FOR PERFORMING THE SAME EP15197732.9 2015-12-03 EP3029667A2 2016-06-08 Ahn, Ik-Hyun; Seo, Jung-Deok; Park, Bong-Im

A method of driving a display device including a display panel is provided. The display panel includes a plurality of gate lines. The gate lines are divided into a plurality of gate line groups. The method includes applying different gate delay values to each of the gate line groups to generate gate signals and outputting the gate signals to the gate lines. A first gate delay value is applied to at least one of the gate lines during a first frame and a second gate delay value different from the first delay value is applied to the at least one of the gate lines during a second frame.

172 METHODS FOR DRIVING ELECTRO-OPTIC DISPLAYS EP14756841.4 2014-02-28 EP2962295A1 2016-01-06 HARRINGTON, Demetrious Mark; CROUNSE, Kenneth R.; AMUNDSON, Karl Raymond; APREA, Matthew J.; SJODIN, Theodore A.; BOUCHARD, Alain; TELFER, Stephen; LATTES, Ana L.; BEN-DOV, Yuval
Methods for driving electro-optic displays, especially bistable displays, include (a) using two-part waveforms, the first part of which is dependent only upon the initial state of the relevant pixel; (b) measuring the response of each individual pixel and storing for each pixel data indicating which of a set of standard drive schemes are to be used for that pixel; (c) for at least one transition in a drive scheme, applying multiple different waveforms to pixels on a random basis; and (d) when updating a limited area of the display, driving "extra" pixels in an edge elimination region to avoid edge effects.
173 DISPLAY PANEL, PIXEL CHIP, AND ELECTRONIC APPARATUS EP13870825.0 2013-12-20 EP2945148A1 2015-11-18 SUZUKI, Hideyuki; MIYAUCHI, Toshiyuki; UENO, Yosuke; MIYAJIMA, Yoshifumi; HATTORI, Masayuki; TAKANOHASHI, Kazukuni; TOGASHI, Haruo; IKEDA, Tamotsu; OOTORII, Hiizu; TANAKA, Sachiya

A display panel includes a plurality of first unit pixels (Pix) each including: a first data input terminals (PDIN); a first data output terminal (PDOUT); a display element (48); and a first waveform shaping section (42, 22), in which the display element (48) is configured to perform display based on first data (PD) inputted to the first data input terminal (PDIN), and the first waveform shaping section (42, 44) is provided on a signal path from the first data input terminal (PDIN) to the first data output terminal (PDOUT).

174 Display apparatus and method of driving backlight thereof EP14175670.0 2014-07-03 EP2874144A1 2015-05-20 Lee, Kyu-heon; Jang, Sung-hwan

A method of driving backlight of a display apparatus and the display apparatus are provided. The method includes: generating a control pulse configured to drive a backlight unit (S700), the control pulse including: a first high pulse section configured to turn on the backlight unit; and an afterimage removal section configured to remove a frame afterimage; and inputting the control pulse into the backlight unit to alternately turn on and off the backlight unit (S710), wherein the afterimage removal section comprises at least one second high pulse section having smaller duty than duty of the first high pulse section.

175 SYSTEMS AND METHODS FOR AGING COMPENSATION IN AMOLED DISPLAYS EP12792244 2012-05-26 EP2715710A4 2014-10-22 CHAJI GHOLAMREZA
Circuits for programming, monitoring, and driving pixels in a display are provided. Circuits generally include a driving transistor to drive current through a light emitting device according to programming information which is stored on a storage device, such as a capacitor. One or more switching transistors are generally included to select the circuits for programming, monitoring, and/or emission. Circuits advantageously incorporate emission transistors to selectively couple the gate and source terminals of a driving transistor to allow programming information to be applied to the driving transistor independently of a resistance of a switching transistor.
176 AM-EWOD device and method of driving with AC voltage EP13005774.8 2013-12-11 EP2759342A3 2014-08-13 Hadwen, Benjamin James

An active matrix electrowetting on dielectric (AM-EWOD) device includes a substrate electrode (28) and a plurality of array elements (42), each array element including an array element electrode (38). The AM-EWOD device further includes thin film electronics (74) disposed on a substrate (72). The thin film electronics includes first circuitry (106) configured to supply a first time varying signal V1 to the array element electrodes, and second circuitry (108) configured to supply a second time varying signal V2 to the substrate electrode. An actuation voltage is defined by a potential difference between V2 and V1, and the first circuitry further is configured to adjust the amplitude of V1 to adjust the actuation voltage. V1 may be adjusted to adjust the actuation voltage while V2 remains unchanged. The actuation voltage may be controlled to operate the AM-EWOD device between high and low voltage modes of operation in accordance with different droplet manipulation operations to be performed.

177 AM-EWOD device and method of driving with AC voltage EP13005774.8 2013-12-11 EP2759342A2 2014-07-30 Hadwen, Benjamin James

An active matrix electrowetting on dielectric (AM-EWOD) device includes a substrate electrode (28) and a plurality of array elements (42), each array element including an array element electrode (38). The AM-EWOD device further includes thin film electronics (74) disposed on a substrate (72). The thin film electronics includes first circuitry (106) configured to supply a first time varying signal V1 to the array element electrodes, and second circuitry (108) configured to supply a second time varying signal V2 to the substrate electrode. An actuation voltage is defined by a potential difference between V2 and V1, and the first circuitry further is configured to adjust the amplitude of V1 to adjust the actuation voltage. V1 may be adjusted to adjust the actuation voltage while V2 remains unchanged. The actuation voltage may be controlled to operate the AM-EWOD device between high and low voltage modes of operation in accordance with different droplet manipulation operations to be performed.

178 Method for detecting the bright point in the liquid crystal display panel EP13188918.0 2013-10-16 EP2722838A1 2014-04-23 Shan, Qingzeng; Sun, Hao

The embodiment of the present invention discloses a method for detecting the bright point in the liquid crystal display panel. The method comprises applying a cutoff voltage to a gate, remaining a thin film transistor TFT switch turning-off, applying a voltage higher than the voltage of a common electrode to a data line, and detecting a bright point under a black image based on the voltages applied to the gate and the data line. The present invention realizes the bright point detecting under a black image.

179 SYSTEMS AND METHODS FOR AGING COMPENSATION IN AMOLED DISPLAYS EP12792244.1 2012-05-26 EP2715710A2 2014-04-09 CHAJI, Gholamreza
Circuits for programming, monitoring, and driving pixels in a display are provided. Circuits generally include a driving transistor to drive current through a light emitting device according to programming information which is stored on a storage device, such as a capacitor. One or more switching transistors are generally included to select the circuits for programming, monitoring, and/or emission. Circuits advantageously incorporate emission transistors to selectively couple the gate and source terminals of a driving transistor to allow programming information to be applied to the driving transistor independently of a resistance of a switching transistor.
180 Emission control driver and organic light emitting display device having the same EP13178175.9 2013-07-26 EP2701142A2 2014-02-26 Jang, Hwan Soo

An emission control driver includes stages sequentially outputting emission control signals through emission control lines. Each stage includes a first signal processor receiving a first voltage and generating first and second signals in response to first and second sub-control signals, a second signal processor receiving a second voltage having a level higher than a level of the first voltage and generating third and fourth signals in response to the third sub-control signal, the first signal, and the second signal, and a third signal processor receiving the first and second voltages and generating the emission control signal in response to the third and fourth signals. The first signal processor of each stage receives the emission control signal output from a previous stage as the first sub-control signal, and the first signal processor of a first stage among the stages receives a start signal as the first sub-control signal.

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