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Voltage Compensation

Voltage Compensation-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Five-transistor-one-capacitor amoled pixel driving circuit and pixel driving method based on the circuit
Shenzhen China Star Optoelectronics Technology Co. Ltd.
October 12, 2017 - N°20170294164

An amoled pixel driving circuit has a 5t1c structure, which includes a first, a second, a third, a fourth, and a fifth thin film transistors, a capacitor, and an organic light emitting diode (oled). The first thin film transistor is a drive thin film transistor. A first global signal, a second global signal, and a scan signal are fed, ...
Microgrid power architecture
Ideal Power, Inc.
October 05, 2017 - N°20170288561

Power converters, and microgrids driven by such a power converter, in which the converter is controlled by a proportional controller which operates directly on ac waveforms, preferably without conversion to a dc type signal; preferably with use of voltage compensation to remove inherent error of proportional controller; and preferably with use of individual phase rms voltages in the voltage compensation, ...
Digital voltage compensation for power supply integrated circuits
Intersil Americas Llc
October 05, 2017 - N°20170288540

Systems and methods for digital voltage compensation in a power supply integrated circuit are provided. In at least one embodiment, a method comprises receiving a digital voltage code, the digital voltage code corresponding to an output voltage value; setting an output count on a first counter to change from a present first digital count corresponding to a present voltage code ...
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Light-emitting diode display with threshold voltage compensation
Apple Inc.
September 14, 2017 - N°20170263183

A display may have an array of pixels. Display driver circuitry may supply data and control signals to the pixels. Each pixel may have seven transistors, a capacitor, and a light-emitting diode such as an organic light-emitting diode. The seven transistors may receive control signals over three control lines, may receive data over a data line, may receive a reference ...
Voltage compensation in an irrigation control device
Rain Bird Corporation
September 14, 2017 - N°20170258019

Some embodiments provide irrigation valve control apparatuses comprising: multiple terminals coupled with a multi-wire path; a first charge storage circuitry electrically coupled with at least one of the multiple terminals, wherein the first charge storage circuitry is configured to be charged by a voltage on the multi-wire path; a control circuitry configured to determine the voltage on the multi-wire path; ...
Pixel circuit and driving method thereof, display substrate, and display apparatus
Boe Technology Group Co.,ltd.
August 31, 2017 - N°20170249898

The present disclosure provides a pixel circuit, a driving method, a display substrate, and a display apparatus. The pixel circuit includes a driving module, a capacitor module, a threshold voltage compensation and light emission control module, an electroluminescence module, a data voltage write module and a reset module. A driving current flowing through the electroluminescence module may be less than ...
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Method, apparatus and system for voltage compensation in a semiconductor wafer
Globalfoundries Inc.
August 03, 2017 - N°20170222634

At least one method, apparatus and system disclosed involves performing a dynamic voltage compensation in an integrated circuit. A first voltage on a first portion of an integrated circuit is received. A second voltage on a second portion of the integrated circuit is monitored. A determination is made as to whether the second voltage fell below the first voltage by ...
Array substrate and method of manufacturing the same, display panel and display device
Boe Technology Group Co., Ltd.
August 03, 2017 - N°20170219890

The disclosure provides an array substrate, a display panel and a display device, for increasing a viewing angle of the display device. The array substrate includes a plurality of data lines and a plurality of gate lines arranged to cross each other, and a column of pixel units between adjacent data lines, at least one pixel unit each includes at ...
Active-matrix organic light emitting diode (amoled) display apparatus and brightness compensation method thereof
Boe Technology Group Co., Ltd.
July 06, 2017 - N°20170193909

An active-matrix organic light emitting diode (amoled) display apparatus and a brightness compensation method thereof are provided. At an initial compensation stage, a display screen can be subjected to brightness calibration by an image sensor so as to acquire a data voltage compensation value of each sub-pixel when a brightness value of a display panel equals a preset value, a ...
Voltage compensation circuits and voltage compensation methods thereof
Shenzhen China Star Optoelectronics Technology Co., Ltd.
June 29, 2017 - N°20170186354

The present disclosure discloses a voltage compensation circuit and the method thereof. The voltage compensation circuit includes a power management chip, a feedback circuit, and a control circuit. A gate driving voltage (vgh) connects an input end of the control circuit, the input end of the control circuit connects to a first end of the fifth resistor (r5), and a ...
Organic electroluminescent touch panel, driving method for the same, and display device comprising the same
Beijing Boe Optoelectronics Technology Co., Ltd.
June 01, 2017 - N°20170153759

This application provides an organic electroluminescent touch panel, a driving method for the same, and a display device comprising the same. Without changing the original organic electroluminescent architecture, the cathode layer (2) of the organic electroluminescent architecture is partitioned to form a plurality of cathodes independent of and insulating from each other, the plurality of cathodes serve as touch electrodes to ...
Pixel voltage compensation circuit
Beijing Boe Optoelectronics Technology Co., Ltd.
May 25, 2017 - N°20170148387

A pixel voltage compensation circuit includes a first switch, a second switch, a driving switch, a third switch, a fourth switch, a first capacitor and a second capacitor. The first end of the first switch is coupled to a first node. The second end of the first switch is coupled to the data signal end. The first end of the ...
Pixel circuit, display panel and display device comprising the pixel circuit
Shenzhen China Star Optoelectronics Technology Co., Ltd.
April 20, 2017 - N°20170110052

The present disclosure discloses a pixel circuit, a display panel comprising the pixel circuit, and a display device comprising the pixel circuit. The pixel circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor, and a fifth transistor. The lifetime of the circuit can be prolonged by the pixel circuit with threshold voltage compensation function of ...
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Amoled pixel driving circuit and pixel driving method
Shenzhen China Star Optoelectronics Technology Co., Ltd.
February 09, 2017 - N°20170039940

The present invention provides an amoled pixel driving circuit and a pixel driving method. The amoled pixel driving circuit utilizes a 5t1c structure, comprising a first, a second, a third, a fourth and a fifth thin film transistors (t1, t2, t3, t4, t5), a capacitor (c) and an organic light emitting diode (oled). The first thin film transistor (t1) ...
Line voltage compensation ac led driving device
Shenzhen Sendis Green Power Integrations Technology Corporation
February 02, 2017 - N°20170034882

Disclosed is a line voltage compensation ac led driving device. The line voltage compensation ac led driving device comprises a line voltage compensation module and an ac led driving module. The line voltage compensation module detects an output voltage of a rectifier bridge, and outputs a corresponding line voltage compensation reference voltage to the ac led driving module according to ...
Method and devices for extended insulation-fault search using a multifunctional test current
Bender Gmbh & Co. Kg
February 02, 2017 - N°20170031373

The invention relates to a method and to devices for extended insulation-fault search in an it power supply system using a multifunctional test current, wherein, selectively and depending on the application, the test current functions as a voltage compensation current so as to compensate a voltage increase in an active conductor of the it power supply system, as a tripping ...
Semiconductor device performing common mode voltage compensation using analog-to-digital converter
Samsung Electronics Co., Ltd.
January 26, 2017 - N°20170026051

A semiconductor device is provided that includes a first chip that generates a single signal by connecting a first signal line and a second signal line, to which differential signals are respectively provided, and outputs the single signal to a third signal line. The first chip is driven by a first power supply voltage. The semiconductor device also includes a ...
Pixel signal compensation for a display panel
Apple Inc.
January 19, 2017 - N°20170018219

This application relates to systems, methods, and apparatus for compensating voltage for pixels of a display panel based on the location of the pixels within the display panel. An amount of voltage compensation is assigned to each pixel or a group of pixels within the display panel in accordance with a calibration of the display panel. During operation of the ...
Pixel circuit and driving method thereof, and organic light emitting display
Konkuk University Industrial Cooperation Corp.
December 29, 2016 - N°20160379553

Provided are pixel circuits using organic light emitting diodes (oleds) and a driving method thereof, and an organic light emitting display including the pixel circuits. The oled is driven to emit light by a drive transistor generating a drive current compensated with respect to a threshold voltage difference and mobility deviation. The drive transistor may receive reference voltage and data ...
Gate driver, display apparatus and gate driving method
Boe Technology Group Co., Ltd.
December 22, 2016 - N°20160372046

The present disclosure discloses a gate driver, a display apparatus and a gate driving method, to achieve a function of outputting a multi-pulse waveform by the gate driver. The gate driver according to the present disclosure comprises multiple groups of driving units, each group of driving units comprising n driving units each of which comprises a shift register and a ...
A voltage compensation method, a voltage compensation device and a display device
Boe Technology Group Co., Ltd.
December 08, 2016 - N°20160358579

The present invention provides a voltage compensation method, a voltage compensation device and a display device, which solves the existing problem of inappropriate compensation caused by compensating the common electrode with a fixed compensation voltage. The voltage compensation method comprises: obtaining a current ambient temperature; determining a compensated common electrode voltage corresponding to the current ambient temperature based on the ...
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