Lg Display Co., Ltd.

Tae Seong Han

Dong Woo Kang

Sung Jin Kim

Yong Min Park

Embodiments relate to a data conversion unit that includes: a bit mode transformer configured to transform a first bit mode image into a second bit mode image; a fixed frequency band component detector configured to detect a fixed frequency band component; and a image processor configured to apply a filter mask to regions of the second bit mode image opposite to the fixed frequency band component and output an interpolated second bit mode image. Such an image conversion unit can allow the gradation of a converted image to become finer. As such, the converted image can be more softly displayed.

Image conversion unit and display device having the same

Disclosed is an apparatus for converting data capable of enhancing sharpness without deterioration of picture quality, and a display apparatus using the same, wherein the apparatus for converting data is provided in the display apparatus with a plurality of unit pixels, each unit pixel with red, green, blue and white sub-pixels, and the apparatus for converting data includes a 4-color data generator for generating 4-color data of red, green, blue and white colors for each unit pixel based on 3-color input data of red, green and blue colors of an input image; and a sharpness enhancer for enhancing sharpness of the input image by correcting white sub-pixel data of the unit pixel corresponding to an edge portion of the input image by a luminance variation of adjacent unit pixels based on white sub-pixel data for each unit pixel.

Growing community of inventors

Goyang-si, South Korea

Tae Seong Han