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Patent

Display device and a driving method thereof

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TLDR
In this article, a display device consisting of a light emitting element, a storage capacitor, and a driving transistor is presented, where the storage capacitor stores a control voltage depending on a threshold voltage of the driving transistor.
Abstract
A display device and a driving method thereof are provided. The display device comprises a plurality of pixels, each pixel includes: a light emitting element; a storage capacitor; a driving transistor that has a control terminal, an input terminal, and an output terminal and supplies a current to the light emitting element to emit light; a first switching transistor for supplying a data voltage to the storage capacitor in response to a scanning signal; a second switching transistor for diode-connecting the driving transistor in response to a previous scanning signal; and a third switching transistor for supplying a driving voltage to the driving transistor in response to an emission signal, wherein the storage capacitor stores a control voltage depending on a threshold voltage of the driving transistor and a threshold voltage of the light emitting element through the diode-connected driving transistor, and transmits the control voltage and the data voltage to the control terminal of the driving transistor.

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Citations
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Patent

Organic light-emitting diode display

TL;DR: In this paper, an organic light-emitting diode (OLED) display with a stretchable substrate, a thin-film transistor (TFT) formed over the substrate and including a plurality of electrodes was presented.
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Organic light emitting display device and driving method thereof

TL;DR: A driving method of an organic light emitting display device includes: classifying a plurality of luminance steps into at least a low and a high luminance sections; and setting a reference luminance at a predefined level during the low luminance section and adjusting an off duty according to predetermined criteria for each step in the low-luminance section as discussed by the authors.
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Organic electroluminescent display device

TL;DR: An organic electroluminescent device includes first and second substrates attached by a seal pattern, array elements including a plurality of thin film transistors formed on the first substrate, a first electrode formed on a rear surface of the second substrate, where the plurality of electrode separators is made of an insulating material defining sub-pixel regions that correspond to each thin film transistor.
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Pixel and organic light emitting display device using the same

TL;DR: In this paper, a display device displays an image having a substantially uniform brightness by compensating for variations of the threshold voltages of driving transistors and compensating the deterioration of an organic light emitting diode.
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Display device and electronic equipment

TL;DR: In this paper, a display device consisting of a pixel array unit and a driving unit which drives the pixel array units is described, where a first scanner performs line-sequential scanning to pixels by each row by supplying a first control signal to each first scanning line sequentially, a second scanner supplying a second control signal on each second scanning line, and a signal selector supplying a video signal to rows of signal lines so as to correspond to the line sequential scanning.
References
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Patent

Current drive circuit and display device using same, pixel circuit, and drive method

TL;DR: In this article, a display device including a current drive circuit capable of stably and correctly supplying an intended current to a light emitting element of each pixel without being affected by variations in characteristics of an active element inside the pixel and as a result capable of displaying a high quality image, wherein each pixel comprises a receiving use transistor TFT 3 for fetching a signal current from a data line DATA when a scanning line SCAN-A is selected, a conversion use transistorTFT 1 for once converting a current level of a fetched signal current Iw to a voltage level and holding the same
Patent

Active matrix type display device

TL;DR: In this article, a controller 26 controls a light-emitting control driver 31 to supply control signals to make a switching circuit conductive and to make organic electroluminescence (EL) elements of the pixels having the data indicating light emitting emit light.
Patent

Light emitting display, light emitting display panel, and driving method thereof

TL;DR: In this paper, a driving transistor for outputting a current for driving an organic electroluminescent (EL) element is formed on a pixel circuit of an organic EL display, and a driving current is output from the transistor because of the changed voltage of the first capacitor, and the organic EL element emits light as a result of the driving current.
Patent

Pixel driving circuit of an organic light emitting diode display panel

Shin-Tai Lo
TL;DR: A pixel driving circuit of an organic light emitting diode display panel includes a scan TFT, a Vdd-connected TFT and a driving TFT as discussed by the authors, and an OLED-connected diode is connected to the ground.
Patent

Active matrix display device

TL;DR: In this paper, a display device comprising an array of pixels, with gates of thin film transistors of the pixels in a row connected to a row conductor, is presented, where row driver circuitry provides row address signals for controlling the switching of the transistors.