公开(公告)号：US20150062190A1

公开(公告)日：2015-03-05

申请号：US14276491

申请日：2014-05-13

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Yu-Pin CHANG ,  Kai-I DAI ,  Jie-Jung HUANG

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G3/2055 ,  G09G3/3614 ,  G09G3/3648 ,  G09G3/3685 ,  G09G2320/0276

Abstract: A liquid crystal display (LCD) device includes: a data source, for generating a N-bit pixel data, N being a positive integer; a digital gamma correction unit, coupled to the data source, for performing digital gamma correction on the pixel data to generate a (N+M)-bit digital gamma correction pixel data, M being a positive integer; an image dithering unit, coupled to the digital gamma correction unit, for performing image dithering on the digital gamma correction pixel data to generate a (N+M−K)-bit dithering compensation pixel data, K being a positive integer; and a converter, coupled to the image dithering unit, for converting the dithering compensation pixel data into an output image. A bit number of the converter is lower than a bit number of the digital gamma correction unit.

Abstract translation: 液晶显示器（LCD）装置包括：数据源，用于产生N位像素数据，N为正整数; 耦合到数据源的数字伽马校正单元，用于对像素数据执行数字伽马校正以产生（N + M）位数字伽马校正像素数据，M为正整数; 耦合到数字伽马校正单元的图像抖动单元，用于对数字伽马校正像素数据执行图像抖动，以产生（N + M-K）位抖动补偿像素数据，K为正整数; 以及耦合到所述图像抖动单元的用于将所述抖动补偿像素数据转换为输出图像的转换器。 转换器的位数低于数字伽马校正单元的位数。

公开(公告)号：US20150010248A1

公开(公告)日：2015-01-08

申请号：US14155894

申请日：2014-01-15

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Yu-Hsing CHUANG ,  Yu-Pin CHANG ,  Chih-Yuan YANG ,  Feng-Ting PAI

IPC: G06T5/00

CPC classification number: G06T5/009 ,  G06T5/007

Abstract: An image processing apparatus for adjusting the luminance of a target pixel of an image is provided. The target pixel includes original pixel data and corresponds to a mask value. The image processing apparatus includes a luminance detection unit, a luminance compensation unit and a mapping unit. The luminance detection unit generates an original luminance value according to the original pixel data. The luminance compensation unit adjusts the original luminance value according to a non-linear function to generate a compensated luminance value. The mapping unit generates adjusted pixel data according to the compensated luminance value. The non-linear function at least includes a first monomial function, which has a base part associated with an inverse value of the original luminance value and an exponent part associated with the mask value.

Abstract translation: 提供了一种用于调整图像的目标像素的亮度的图像处理装置。 目标像素包括原始像素数据并对应于掩码值。 图像处理装置包括亮度检测单元，亮度补偿单元和映射单元。 亮度检测单元根据原始像素数据生成原始亮度值。 亮度补偿单元根据非线性函数来调整原始亮度值，以生成补偿亮度值。 映射单元根据补偿的亮度值生成调整后的像素数据。 非线性函数至少包括第一单项式函数，其具有与原始亮度值的逆值相关联的基本部分和与掩模值相关联的指数部分。