公开(公告)号：US20190139470A1

公开(公告)日：2019-05-09

申请号：US16173419

申请日：2018-10-29

Applicant: Samsung Display Co., Ltd.

Inventor： Hyunseuk YOO ,  Wooseok HAN ,  Hyungjin KIM

IPC: G09G3/00 ,  H04N13/344 ,  H04N13/133 ,  G09G3/20 ,  G02B27/01

Abstract: A method of compensating for non-uniform luminance of a display panel including first pixels in a center region and second pixels in a non-center region, the method including displaying a for-compensation image, generating a luminance image by capturing an image of an entire region of the display panel, extracting luminance values of the first pixels from the luminance image by analyzing the luminance image, calculating and storing compensation factors for the first pixels based on the luminance values thereof, calculating compensation factors for the second pixels by performing an interpolation between a reference compensation factor determined for an edge of the non-center region and compensation factors for edge pixels on an edge of the center region when a displaying operation is performed, and compensating image data using the compensation factors for the first pixels and the second pixels when the displaying operation is performed on the display panel.

公开(公告)号：US20160372033A1

公开(公告)日：2016-12-22

申请号：US15092155

申请日：2016-04-06

Applicant: Samsung Display Co., LTD.

Inventor： Hyunseuk YOO

IPC: G09G3/3225 ,  G09G5/22 ,  H04N19/625 ,  G09G3/20

CPC classification number: G09G3/3225 ,  G09G3/2003 ,  G09G3/3233 ,  G09G5/22 ,  G09G2300/043 ,  G09G2300/0857 ,  G09G2320/0257 ,  G09G2320/046 ,  G09G2340/16 ,  G09G2360/127

Abstract: Degradation compensator includes a compressor which generates a block-level compression stress matrix (“BCSM”) representing a degradation level of a block included in a frame by R, G, and B input signals of the block, an updater update a frame-level accumulated compression stress matrix (“FACSM”) by adding the BCSM, an error corrector which executes error-correction encoding to elements of a block-level accumulated compression stress matrix (“BACSM”) included in the FACSM, writes encoded elements as a storage data of a non-volatile memory device when a power supply is stopped, executes error-correction decoding to the storage data and writes the decoded storage data as the FACSM of the volatile memory when the power supply is started, a restorer which generates a block-level accumulated stress matrix (“BASM”), and an internal compensator which generates compensated R, G, and B output signals

Abstract translation: 降级补偿器包括一个压缩器，该压缩器产生一个表示由帧中的R，G和B输入信号包括在帧中的块的劣化水平的块级压缩应力矩阵（“BCSM”），更新器更新帧级 通过添加BCSM的累积压缩应力矩阵（“FACSM”），对包含在FACSM中的块级累积压缩应力矩阵（“BACSM”）的元素执行纠错编码的纠错器将编码元素写入存储器 当电源停止时非易失性存储器件的数据对存储数据执行纠错解码，并且在电源启动时将解码的存储数据作为易失性存储器的FACSM写入，生成块的恢复器 （“BASM”）和产生补偿R，G和B输出信号的内部补偿器