Samsung Display Co., Ltd.

Youngwook Yoo

Byung Ki Chun

Jungyu Lee

Hyunjun Lim

Kuk-Hwan Ahn

Hongsoo Kim

Junheyung Jung

Naoaki Komiya

Ji-Eun Park

Heechul Hwang

Hyeonmin Kim

Jinwoo Noh

A driving controller of a display device includes a driving frequency controller for receiving an image signal, determining a driving frequency based on the image signal, and outputting a masking enable signal corresponding to the driving frequency, and an image processor for converting the image signal into a data signal and outputting the data signal, wherein the image processor sequentially converts, based on the masking enable signal being at an active level, a part of bits of the image signal into the data signal corresponding to a plurality of dither patterns.

Driving controller for displaying image using dithering patterns and display device having the same

The present disclosure provides a display device with a display panel and driver. The driver includes a logo compensator to generate a logo map data with respect to a logo area through which the logo image is displayed and compensates for a brightness of the logo area using the logo map data. The logo compensator includes an extractor, a logo calculator, a logo determination unit, and a brightness compensation block. The extractor extracts logo area data. The logo calculator calculates the logo map data with first data corresponding to a first image recognized as the logo image and second data corresponding to a second image recognized as a logo background image. The logo determination unit sets a boundary area and determining whether a first area corresponding to the first image overlaps the boundary area to output determination data. The brightness compensation block compensates for the brightness of the logo area.

Display device and method of driving the same

A display device includes a display panel, a memory, a dithering processor, and a panel driver. The display panel includes a display surface, and the memory stores dither patterns with respect to at least one spot area included in the display surface. The dithering processor selects a dither pattern among the dither patterns in a predetermined time unit and outputs a compensation image signal corresponding to the dither pattern. The panel driver outputs a data signal corresponding to the spot area based on the compensation image signal. Each of the dither patterns includes a first grayscale area having a first grayscale value higher than a first target grayscale value of the spot area and a second grayscale area having a second grayscale value lower than the first target grayscale value.

Driving controller for displaying image using dither patterns and display device having the same

A display device includes a display panel including a first pixel having first and second sub-pixels for first and second color light, and a second pixel having third and fourth sub-pixels for third and second color light, an image processor to convert input image data into output image data of greater resolution, and a panel driver to display images based on the output image data, the input image data including first, second, and third input color data corresponding to the first, second, and third color light, the output image data including first, second, and third output color data corresponding to the first, second, and third color light, and the image processor for generating the first and third output color data, by performing an upscaling-rendering operation on the first and third input color data, and the second output color data, by performing an upscaling operation on the second input color data.

Image processor, display device including the image processor, and method of driving the display device

An organic light-emitting display apparatus including at least one pixel including an OLED, a first transistor connected to a connection line, a second transistor connected to a power line, and to the first transistor, a third transistor connected to a data line, a fourth transistor connected to the third transistor, and to the first transistor, a fifth connected to the fourth transistor, a sixth transistor connected to the fifth transistor, and to the fifth transistor, a seventh transistor connected to the fifth transistor, and to the OLED, and first and second capacitors connected between electrodes of the fourth and fifth transistors, respectively.

Growing community of inventors

Suwon-si, South Korea

Youngwook Yoo