Samsung Electronics Co., Ltd.

Yonsei University

Sewoong Ahn

Sunkwon Kim

Sugyeung Kang

Kangjoo Kim

Yongil Kwon

Uijong Song

Yongsik Kwak

Sanghoon Lee

Chan-yul Kim

Sun-il Lee

Jongsung Lee

Yilho Lee

Changhyun Park

Sangyoun Lee

Changyeon Cho

Taehyeon Kwon

Dosik Hwang

Taeoh Kim

Jinseong Jang

Sungmok Lee

Taejoon Eo

Jongyoo Kim

A backlight system includes a plurality of pixel ICs respectively including a plurality of channels connected to a plurality of LEDs and that control the LEDs to be turned on and off through the channels, and a driver IC connected to the pixel ICs and that supplies a data signal to each of the pixel ICs. The pixel ICs include a first pixel IC connected to first LEDs and a second pixel IC connected to second LEDs. The first pixel IC turns the first LEDs on or off in a first order based on first control data included in the data signal, and the second pixel IC turns the second LEDs on or off in a second order different from the first order based on second control data included in the data signal.

Backlight system

A backlight system includes a backlight and a master driving circuit. The backlight includes a plurality of slave driving circuits and a plurality of light sources driven by the plurality of slave driving circuits, wherein the plurality of slave driving circuits are arranged in a matrix of driving rows and driving columns such that first through m-th slave driving circuits, where m is a positive integer greater than one, are arranged in each driving row of the driving rows, and the first through m-th slave driving circuits are connected in a daisy chain structure. The master driving circuit is configured to generate a plurality of input data signals, wherein each input data signal of the plurality of input data signals corresponds to the each driving row, and the each input data signal includes first through m-th packets including luminance data corresponding to the first through m-th slave driving circuits.

Backlight system, display device including the backlight system and method of transferring data in the backlight system

Provided is an image encoding method including generating a first picture reconstructed by using a residual picture and a predicted picture; generating a second picture by applying a first artifact reduction filter to the first picture; determining a picture having a smaller bit-rate distortion cost from among the first and second pictures by comparing a first bit-rate distortion cost of the first picture with a second bit-rate distortion cost of the second picture; generating a third picture by applying an in-loop filter to the determined picture; generating a fourth picture by applying a second artifact reduction filter to the third picture; determining a picture having smaller distortion from among the third and fourth pictures by comparing first distortion of the third picture with second distortion of the fourth picture; and generating, via a processor, a bitstream including information about whether the second artifact reduction filter is applied.

Image encoding method and apparatus using artifact reduction filter, and image decoding method and apparatus using artifact reduction filter

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Daejeon, South Korea

Sewoong Ahn