Samsung Display Co., Ltd.

Leonid Kaplan

Heung-Yeol Na

Won-Sik Hyun

Jae-Hoon Lee

Baek-Woon Lee

Jin-Woo Park

Min-Soo Kim

Valeriy Prushinskiy

Sun-Young Jung

Jang-Doo Lee

Wang-Jo Lee

Ho-Ryun Chung

Il-Sang Lee

Ji-Ryun Park

Ou-Hyen Kim

Hee-Sang Park

Sang-Wook Shin

Won-Baek Lee

A method for forming a thin film for fabricating an organic light-emitting diode (OLED) display is disclosed. In one aspect, the method includes forming a plurality of shadow masks on a substrate. The substrate is then bent to form a predetermined curvature in the substrate. A deposition source is placed at a position having an equal angle with respect to central and peripheral portions of the substrate. The method also includes depositing a deposition material from the deposition source on the substrate and the shadow masks to form a thin film.

Method for forming thin film and method for fabricating organic light-emitting diode (OLED) display using the same

A display device includes a timing controller for controlling the display of an image. The timing controller forms a frame for an image signal based on a main frame, a compensation frame, and at least one blank frame. The timing controller also determines a driving method for the display pixels to generate output image data. The main frame serves to display the image signal. The compensation frame serves to compensate luminance of the main frame. The blank frame serves to express a black gray scale value.

Display device and driving method thereof

Exemplary embodiments of the present invention relate to a pixel circuit comprising an organic light emitting diode (OLED), an RS trigger comprising a first terminal connected to a scan line, a second terminal connected to an enable line, and a third terminal connected to a data line, the RS trigger configured to generate an output signal according to an enable signal, a data signal, and a scan signal respectively received via the enable line, the data line, and the scan line, and a driving transistor comprising a first electrode connected to a first power source, a second electrode connected to an anode of the OLED, and a gate electrode connected to an output terminal of the RS trigger, the driver transistor configured to control a current flowing through the OLED in response to the output signal of the RS trigger.

Pixel circuit and display device using the same

A pixel circuit includes: an organic light emitting diode ('OLED'); a threshold circuit which generates an output signal based on an input signal, where the threshold circuit has a hysteresis characteristic with respect to the input signal; a first transistor including a first electrode connected to a data line, a second electrode connected to an input terminal of the threshold circuit, and a gate electrode connected to a scan line; and a second transistor including a first electrode connected to a first power, a second electrode connected to an anode of the organic light emitting diode, and a gate electrode connected to an output terminal of the threshold circuit, where the second transistor controls a current amount that flows to the organic light emitting diode from the first power based on the output signal of the threshold circuit.

Pixel circuit, display device using the same, and display device driving method

A controller for a display panel may include a first supply circuit to output first and second driving voltages to a sub-pixel of a first color; and a second supply circuit to output third and fourth driving voltages to a sub-pixel of a second color. The first driving voltage may be greater than the second driving voltage, and the third driving voltage may be greater than the fourth driving voltage. Also, at least three of the first, second, third, and fourth driving voltages may be different from one another.

Organic light emitting diode display and method of driving the same

An organic light emitting display apparatus includes a substrate and includes an organic light emitting device that overlaps the substrate and includes an organic layer. The organic light emitting display apparatus further includes a planarization layer that overlaps the organic light emitting device and includes an organic material, wherein the organic light emitting device is disposed between the substrate and the planarization layer. The organic light emitting display apparatus further includes an encapsulation layer that overlaps the planarization layer and includes an inorganic material, wherein the planarization layer is disposed between the organic light emitting device and a portion of the encapsulation layer. The organic light emitting display apparatus further includes an intermediate layer that is disposed between the planarization layer and the portion of the encapsulation layer.

Organic light-emitting display apparatus and related manufacturing method

A display device includes a display unit including pixels, each of which emits light according to data voltages, respectively; and a timing controller which divides an area of the display unit into an upper, center and bottom portions, divides one frame time into light emission sub-frames of a light emission period and a blank sub-frame of a blank period in which is supplied a black data signal, divides the upper, center and the bottom portions into groups, differentiates a scan start time of a light emission sub-frame and a scan start time of the blank sub-frame of each group, and increases the light emission period and decreases the blank period in proportional to an increase ratio of the light emission period as a group is closer to a middle of the center portion.

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Yongin, South Korea

Leonid Kaplan