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1. 发明授权

US07649510B2 Plasma display apparatus and image processing method thereof 有权
标题翻译：等离子显示装置及其图像处理方法
公开(公告)号：US07649510B2
公开(公告)日：2010-01-19
申请号：US11176236
申请日：2005-07-08
申请人： Seung Chan Baek
发明人： Seung Chan Baek
IPC分类号： G09G3/28
CPC分类号： G09G3/2059 , G09G3/2022 , G09G3/2048 , G09G3/2051 , G09G3/2803 , G09G2320/0233 , G09G2320/0247 , G09G2320/0266 , G09G2320/0606 , G09G2320/0666
摘要： The present invention relates to a plasma display apparatus and an image processing method thereof, and more particularly, the present invention relates to an improved plasma display apparatus and an image processing method thereof which can enhance a gray level representation capability.The plasma display apparatus according to one embodiment of the present invention comprises a plasma display panel including a plurality of address electrodes; an inverse gamma correction section for inverse gamma-correcting an image signal inputted from an exterior; a halftone section in which a subordinate bit of a fraction bit of the image signal which is inverse gamma-corrected divides a plurality of pixels adjacent to each other into at least two or more types, an error diffusion is performed among the pixels corresponding to any one type, and a superior bit of the fraction bit performs a dithering using at least two or more dither mask patterns; and a subfield mapping section for mapping the image signal which is halftone processed on the corresponding subfield.The present invention is advantageous in that the flicker phenomenon is suppressed when the plasma display apparatus is operated and a distortion of the embodied image can be prevented.
摘要翻译：等离子体显示装置及其图像处理方法技术领域本发明涉及等离子体显示装置及其图像处理方法，更具体地说，本发明涉及一种提高灰度表示能力的等离子体显示装置及其图像处理方法。根据本发明的一个实施例的等离子体显示装置包括：等离子体显示面板，其包括多个寻址电极; 用于对从外部输入的图像信号进行反伽马校正的反伽马校正部分; 半色调部分，其中反相伽马校正的图像信号的分数位的下位将彼此相邻的多个像素划分为至少两种或更多种类型，在对应于任何像素的像素之间执行误差扩散一个类型，并且分数比特的优越比特使用至少两个或更多个抖动掩模图案执行抖动; 以及子场映射部分，用于映射在相应子场上进行半色调处理的图像信号。本发明的优点在于，当等离子体显示装置被操作时可以抑制闪烁现象，并且可以防止体现的图像的变形。

2. 发明授权

US07633468B2 Image processing apparatus and method of plasma display panel 失效
标题翻译：等离子显示面板的图像处理装置及方法
公开(公告)号：US07633468B2
公开(公告)日：2009-12-15
申请号：US11319464
申请日：2005-12-29
申请人： Seung Chan Baek
发明人： Seung Chan Baek
IPC分类号： G09G3/28
CPC分类号： G09G3/2059 , G09G3/2022 , G09G3/288 , G09G3/298 , G09G2320/0247 , G09G2320/0276
摘要： This document relates to a display apparatus, and more particularly, to an image processing apparatus and method of a plasma display panel. An image processing apparatus of a plasma display panel according to an embodiment of the present invention comprises an inverse gamma correction unit that gamma-corrects an image signal through previous stored gamma data, a half-toning unit that adds an error diffusion error value (Ei) of neighboring pixels to a noise value (n(i, j)) of a predetermined pattern and diffuses the added result into the inverse gamma corrected image signal, and a sub-field mapping unit that maps the half-toned image signal to a sub-field mapping table.
摘要翻译：本文件涉及显示装置，更具体地，涉及等离子体显示面板的图像处理装置和方法。根据本发明的实施例的等离子体显示面板的图像处理装置包括：反伽马校正单元，其通过先前存储的伽马数据对图像信号进行伽马校正;加法单元，其将误差扩散误差值（Ei ），将预定图案的噪声值（n（i，j））相邻，并将相加结果扩散到反伽马校正图像信号中，并将该半色调图像信号映射到子字段映射表。

3. 发明授权

US07397445B2 Method of displaying gray scale in plasma display panel 失效
标题翻译：在等离子体显示面板上显示灰度的方法
公开(公告)号：US07397445B2
公开(公告)日：2008-07-08
申请号：US11022806
申请日：2004-12-28
申请人： Seung Chan Baek
发明人： Seung Chan Baek
IPC分类号： G09G3/28
CPC分类号： G09G3/2022 , G09G3/2059 , G09G3/28 , G09G2320/0266 , G09G2320/0276 , G09G2320/0285
摘要： The present invention relates to a plasma display panel, and more particularly, to a method of displaying the gray scale in a plasma display panel. According to the present invention, a method of displaying gray scales in a plasma display panel having an inverse gamma correction unit that operates using gamma tables includes the steps of allowing the inverse gamma correction unit to match picture signals, which corresponds to an n number of frames (n is a natural number) respectively, to an n number of previously stored gamma tables, allowing the inverse gamma correction unit to perform an inverse gamma process on the picture signals received according to the matched gamma tables to produce real gray scales every frame, and allowing the inverse gamma correction unit to divide the real gray scales every frame by n and then to produce last real gray scales. More fine gray scales can be represented by extending the number of real gray scales. It is thus possible to remove noise and provide a much smooth image.
摘要翻译：等离子体显示面板技术领域本发明涉及等离子体显示面板，更具体地，涉及在等离子体显示面板中显示灰度的方法。根据本发明，在具有使用伽马表进行操作的反伽马校正单元的等离子体显示面板中显示灰度的方法包括以下步骤：允许反伽马校正单元匹配图像信号，其对应于n个帧（n是自然数）分配给n个先前存储的伽马表，允许反伽马校正单元对根据匹配的伽马表接收的图像信号执行反伽马处理，以产生每帧的真实灰度，并且允许反伽马校正单元将每个帧的真实灰度除以n，然后产生最后的真实灰度。可以通过扩展真实灰度级数来表示更精细的灰度级。因此，可以消除噪音并提供更平滑的图像。

4. 发明申请

US20080018561A1 DRIVING DEVICE OF PLASMA DISPLAY PANEL AND METHOD OF DRIVING THE SAME 审中-公开
标题翻译：等离子显示面板的驱动装置及其驱动方法
公开(公告)号：US20080018561A1
公开(公告)日：2008-01-24
申请号：US11781034
申请日：2007-07-20
申请人： Byungsoo Song , Seung Chan Baek , Tae-Ok Ha , Seonghak Moon
发明人： Byungsoo Song , Seung Chan Baek , Tae-Ok Ha , Seonghak Moon
IPC分类号： G09G3/28
CPC分类号： G09G3/2803 , G09G3/2044 , G09G2320/0271 , G09G2320/106 , G09G2330/021 , G09G2360/16
摘要： A driving device of a plasma display panel and a method of driving the plasma display panel are disclosed. A method of driving a plasma display panel receiving a video signal and displaying an image on the screen includes performing an inverse-gamma correction process on the video signal, calculating an occupation proportion of a maximum gray level of the video signal in a histogram of the video signal using location information of an object displayed on the screen, calculating a motion proportion of the video signal, and calculating an average picture level (APL) of the video signal.
摘要翻译：公开了等离子体显示面板的驱动装置和驱动等离子体显示面板的方法。驱动接收视频信号并在屏幕上显示图像的等离子体显示面板的方法包括对视频信号执行反伽马校正处理，计算视频信号的直方图中的最大灰度级的占有比例使用在屏幕上显示的对象的位置信息的视频信号，计算视频信号的运动比例，以及计算视频信号的平均图像电平（APL）。

5. 发明申请

US20050206587A1 Plasma display apparatus and image processing method thereof 审中-公开
标题翻译：等离子显示装置及其图像处理方法
公开(公告)号：US20050206587A1
公开(公告)日：2005-09-22
申请号：US11081389
申请日：2005-03-15
申请人： Seung Chan Baek
发明人： Seung Chan Baek
IPC分类号： G09G3/20 , G09G3/28
CPC分类号： G09G3/2051 , G09G3/2022 , G09G3/288 , G09G2320/0276 , G09G2320/106 , G09G2360/16
摘要： The present invention relates to a plasma display apparatus, and more particularly, to a plasma display apparatus for expressing images by processing input image signals and an image processing method thereof. The plasma display apparatus for expressing images by processing image signals comprises: an inverse gamma correction unit linearly transforming a luminance value depending on the gray scale of an image signal by inverse gamma correction of input image signal data; and a halftoning unit masking at least two dither mask patterns in random order with respect to the inverse gamma corrected image signal data.
摘要翻译：等离子体显示装置技术领域本发明涉及一种等离子体显示装置，更具体地，涉及一种通过处理输入图像信号来表达图像的等离子体显示装置及其图像处理方法。用于通过处理图像信号来表达图像的等离子体显示装置包括：反伽马校正单元，通过输入图像信号数据的反相伽马校正，根据图像信号的灰度线性变换亮度值; 以及半色调单元相对于反伽马校正图像信号数据以随机顺序掩蔽至少两个抖动掩模图案。

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