Seokjin Han

7755649, Jul 13, 2010

Apr 2, 2007

11/695343

Candice Hellen Brown Elliott - Santa Rosa CA, US
SeokJin Han - Cupertino CA, US
MoonHwan Im - Cupertino CA, US
InChul Baek - Seoul, KR
Michael Francis Higgins - Cazadero CA, US
Paul Higgins - Sebastopol CA, US

Samsung Electronics Co., Ltd. - Gyeonggi-do

G09G 5/10

345690, 345214, 345589, 345596, 345597, 345598, 345613, 345643, 348254, 358519, 382167

Sub-pixel rendering with gamma adjustment allows the luminance for the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel, while the chrominance can match the linear response of the human eye's chrominance channels. The gamma correction allows the sub-pixel rendering to operate independently of the actual gamma of a display device. The sub-pixel rendering techniques with gamma adjustment may be optimized for the gamma transfer curve of a display device in order to improve response time, dot inversion balance, and contrast.

20090278855, Nov 12, 2009

Apr 15, 2008

12/103692

SeokJin Han - Cupertino CA, US
Thomas Lloyd Credelle - Morgan Hill CA, US

G09G 5/02

345590, 345560

A display system comprises line buffer memory that stores input image data in a first color space, and a plurality of gamut mapping modules that accept the input image data from the line buffer memory and performs a gamut mapping operation to produce mapped image data specified in a second color space. The system also includes a subpixel rendering module that renders the image data specified in the second color space for display on a display panel substantially comprised of a particular subpixel repeating group. The system architecture utilizes a plurality of gamut mapping modules which in turn allows for a reduction in the size of line buffer memory needed for the subpixel rendering operation.

7623141, Nov 24, 2009

May 11, 2007

11/747398

Candice Hellen Brown Elliott - Santa Rosa CA, US
SeokJin Han - Cupertino CA, US
MoonHwan Im - Cupertino CA, US
InChul Baek - Seoul, KR
Michael Francis Higgins - Cazadero CA, US
Paul Higgins - Sebastopol CA, US

Samsung Electronics Co., Ltd. - Gyeonggi-do

G09G 5/10

345690, 345214, 345589, 345596, 345597, 345613, 382167, 382272, 382274, 348254, 358519

Sub-pixel rendering with gamma adjustment allows the luminance of the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel. For each of a subset of input sampled data indicating a region of an input image, a gamma-adjusted data value is generated for each input image data value in the subset using a local average of at least two input image data values. A sub-pixel rendering operation uses the subset of gamma-adjusted data values and the subset of input image data values to produce an output data value for each sub-pixel element on the display panel. A plurality of output data values collectively indicates an output image. The gamma adjustment allows the sub-pixel rendering to operate independently of the actual gamma of a display device. The sub-pixel rendering techniques with gamma adjustment may improve image contrast in high spatial frequency portions of an image.

20210132435, May 6, 2021

Jul 3, 2019

17/257473

- WAN CHAI, HK
SEOKJIN HAN - CUPERTINO CA, US
ROBERT J. FLEMING - SAN JOSE CA, US
CANDICE BROWN ELLIOT - SANTA ROSA CA, US

CONCORD (HK) INTERNATIONAL EDUCATION LIMITED - WAN CHAI

G02F 1/1335
G02F 1/16766
G02F 1/1685
F21V 8/00
G02F 1/1677
G02F 1/167
G09G 3/34

Color may be achieved in TIR-based image displays by addition of a sub-pixel color filter array (CFA). Color may be enhanced by tuning the size, shape, arrangement and colors of the sub-pixel color filters in the CFA. CFAs comprising of pixels further comprising one to four or more different repeating sub-pixel color filters may be capable of creating a wide gamut of displayable colors. The sub-pixels may be arranged in repeat cells wherein the sub-pixels within the repeat cell may be mapped to one or more pixels. Sub-pixel rendering may be used during driving of a TIR-based display. Sub-pixel rendering uses logical dynamic pixels where a single sub-pixel may be used in one or more pixels depending on the image displayed.

20180074997, Mar 15, 2018

Feb 26, 2016

15/561628

Seokjin HAN - Cupertino CA, US

G06F 17/18
G06F 7/02
G06F 7/544
G06F 7/483
G06F 7/24

A device for calculating an average of nonlinear data includes: an input module for receiving a nonlinear function F and nonlinear data yand y; a comparison module for deriving nonlinear data cand csorted in a descending order, by comparing the nonlinear data yand y; an index module for deriving an index value daccording to a preset computation, from the sorted nonlinear data cand c; a lookup table (LUT) memory for pre-storing an LUT of the index value d and a variable B by using a preset computation formula, and deriving the variable B corresponding to the index value dif the index value dis received; and a computation module for receiving cof the sorted nonlinear data and the variable B and deriving a final nonlinear output value A through the preset computation.

20160320912, Nov 3, 2016

Jan 12, 2016

14/994104

- Yongin-si, KR
Seokjin Han - Cupertino CA, US

G06F 3/041

A method of generating a mask overlay for a display corresponding to a touch path, the method including receiving touch path data including touch points corresponding to the touch path, generating vertex points of a vertex array corresponding to the touch points, generating a polygon for a set of the vertex points to define edges of the touch path, determining start and stop edges of the polygon for a row of pixels, generating a list of bin offset values corresponding to the row and including bin offsets for indicating the edges by incrementing a bin offset for each of the start edges, and by decrementing a subsequent bin offset for each of the stop edges, generating an accumulator value corresponding to each of the pixels, determining whether the accumulator values are greater than or equal to zero, and generating the mask overlay by determining whether respective accumulator values is greater than zero.