公开(公告)号：US08334855B2

公开(公告)日：2012-12-18

申请号：US12646955

申请日：2009-12-23

申请人： Im-Su Choi ,  Hyun-Chul Do

发明人： Im-Su Choi ,  Hyun-Chul Do

IPC分类号： G06F3/033 ,  G09G3/28

CPC分类号： G06F3/037

摘要： An electronic pen for detecting a touch location on a display panel by detecting infrared rays generated by the display panel, the electronic pen including an infrared sensor that detects the infrared rays and generates a detection signal; an amplifying unit that amplifies the detection signal; a low pass filter that filters high-frequency elements from the amplified detection signal; and a location detecting unit that detects the location on the display panel touched by the electronic pen based on the filtered detection signal.

摘要翻译： 一种用于通过检测由显示面板产生的红外线来检测显示面板上的触摸位置的电子笔，所述电子笔包括检测红外线并产生检测信号的红外传感器; 放大单元，其放大检测信号; 低通滤波器，用于从放大的检测信号中滤出高频元件; 以及位置检测单元，其基于滤波的检测信号来检测由电子笔触摸的显示面板上的位置。

公开(公告)号：US20060114181A1

公开(公告)日：2006-06-01

申请号：US11298316

申请日：2005-12-09

申请人： Im-Su Choi

发明人： Im-Su Choi

IPC分类号： G09G3/28

CPC分类号： G09G3/2022 ,  G09G3/2059 ,  G09G3/28 ,  G09G2340/0428

摘要： A multi-gray-scale image display method and apparatus for displaying a multi-gray-scale image on a PDP by diffusing, as an error, a part of gray scale data representing an input image requiring more than a gray scale resolution of the PDP to a target pixel from different adjacent pixels in a scanning direction according to a diffusion factor corresponding to each pixel. A determination is made whether the target pixel to which the error is diffused from the adjacent pixels is positioned in an upper line of the whole image represented by the data. The diffusion factor is set such that it determines the error diffused from an adjacent pixel differently when the target pixel to which the error is diffused from the adjacent pixel is positioned in the upper line of the whole image.

公开(公告)号：US20050088372A1

公开(公告)日：2005-04-28

申请号：US10968163

申请日：2004-10-20

申请人： Soo-Jin Lee ,  Im-Su Choi

发明人： Soo-Jin Lee ,  Im-Su Choi

IPC分类号： G09G3/20 ,  G06F3/147 ,  G09F9/313 ,  G09G3/28 ,  G09G3/288 ,  G09G3/291 ,  G09G3/294 ,  G09G3/298 ,  G09G5/10 ,  H01J17/49

CPC分类号： G09G3/294 ,  G09G3/2037 ,  G09G2320/0266 ,  G09G2320/0673 ,  G09G2360/16

摘要： Disclosed is a plasma display panel, and an apparatus and method for driving the same. In the method of the present invention, an image signal is received and gamma-corrected according to a gamma correction curve. The gamma-corrected image signal is generated as subfield data according to the subfield generating compression curve. The average signal level of the image signal is calculated and correction according to an average signal level correction inverse curve is performed regarding the generation of the subfields for each gray level, and a sustain electrode driving signal and a scan electrode driving signal corresponding to the average signal level are output.

摘要翻译： 公开了一种等离子体显示面板及其驱动装置和方法。 在本发明的方法中，根据伽马校正曲线接收图像信号并进行伽马校正。 根据子场产生压缩曲线，产生伽马校正图像信号作为子场数据。 计算图像信号的平均信号电平，并根据对于每个灰度级的子场的生成执行平均信号电平校正反向曲线的校正，以及对应于平均值的维持电极驱动信号和扫描电极驱动信号 输出信号电平。

公开(公告)号：US20050068265A1

公开(公告)日：2005-03-31

申请号：US10947331

申请日：2004-09-23

申请人： Mi-Young Joo ,  Im-Su Choi

发明人： Mi-Young Joo ,  Im-Su Choi

IPC分类号： G09G3/20 ,  G09F9/313 ,  G09G3/288 ,  G09G3/291 ,  G09G3/293 ,  G09G3/294 ,  G09G3/296 ,  H01J17/49 ,  G09G3/28

CPC分类号： G09G3/294 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2360/16

摘要： A method and apparatus to automatically control power of address data in a PDP includes a plurality of address electrodes, a plurality of scan electrodes, and a plurality of sustain electrodes arranged in pairs with the scan electrodes, and a PDP including the apparatus. The sum of pixel value differences between adjacent ones of successive lines in input image data is calculated, and an address power control (APC) level corresponding to the calculated line pixel value difference sum is determined. The image data is then repeatedly multiplied by a gain initially corresponding to the start gain and sequentially decremented by a predetermined value from the start gain upon every multiplication until the gain corresponds to the end gain, to output corrected address data.

摘要翻译： 自动控制PDP中地址数据功率的方法和装置包括与扫描电极成对配置的多个寻址电极，多个扫描电极和多个维持电极，以及包括该装置的PDP。 计算输入图像数据中的相邻行之间的像素值差的总和，并且确定与所计算的行像素值差和相对应的地址功率控制（APC）电平。 然后，图像数据被重复地乘以与开始增益相对应的增益，并且在每次相乘时从开始增益逐渐递减预定值，直到增益对应于最终增益，以输出校正的地址数据。

公开(公告)号：US07355570B2

公开(公告)日：2008-04-08

申请号：US10962624

申请日：2004-10-13

申请人： Im-Su Choi

发明人： Im-Su Choi

IPC分类号： G09G3/10

CPC分类号： G09G3/2803 ,  G09G3/2059 ,  G09G2360/16

摘要： In a method of expressing a gray level of a high load image and an apparatus for driving a Plasma Display Panel (PDP) using the method, a load ratio of the input image signal is calculated, and an error diffusion of a lower bit of gray level data corresponding to the input image signal is performed when it has been determined that the calculated load ratio is greater than or equal to a critical load ratio which is a lowest load ratio among the load ratios in which luminance at every gray level does not increase while the gray level increases at a low gray level area. The error-diffused gray level data is then displayed on the PDP.

摘要翻译： 在使用该方法表示高负载图像的灰度级和驱动等离子体显示面板（PDP）的装置的方法中，计算输入图像信号的负载比，并且灰色的较低位的误差扩散 当确定计算出的负载比大于或等于作为每个灰度级的亮度不增加的负载比中的最低负载比的临界负载比时，执行与输入图像信号相对应的电平数据 而灰度级在较低的灰度级别增加。 然后，差错扩散的灰度级数据显示在PDP上。

公开(公告)号：US07233300B2

公开(公告)日：2007-06-19

申请号：US10210110

申请日：2002-08-02

申请人： Tae-Kyong Kwon ,  Im-Su Choi

发明人： Tae-Kyong Kwon ,  Im-Su Choi

IPC分类号： G09G3/28

CPC分类号： G09G3/2022 ,  G09G3/2059 ,  G09G3/288 ,  G09G2320/0247 ,  G09G2320/0261 ,  G09G2320/0276 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2340/16 ,  G09G2360/16

摘要： The apparatus for displaying plasma display panel (PDP) gray scales includes an automatic power controller for detecting an average signal level (ASL) in each field of video data; first and second frame memories for storing the video data in even and odd frames; a sub-field generator for mapping the video data according to the number of sub-fields, generating gray scale data, and selectively storing them in the frame memories; an address data generator for generating address data and applying them to the PDP; an ASL controller for comparing the numbers of sub-fields in each field with each other, and controlling the number of sub-fields; and a sustain scan pulse generator for receiving the number of sub-fields, generating sustain pulses and scan pulses, and applying them to the PDP.

摘要翻译： 用于显示等离子体显示面板（PDP）灰度级的装置包括用于检测每个视频数据领域中的平均信号电平（ASL）的自动功率控制器; 第一和第二帧存储器，用于以偶数和奇数帧存储视频数据; 子场发生器，用于根据子场数量映射视频数据，产生灰度数据，并将其选择性地存储在帧存储器中; 用于产生地址数据并将其应用于PDP的地址数据生成器; ASL控制器，用于将每个场中的子场数相互比较，并控制子场数; 以及用于接收子场数，产生维持脉冲和扫描脉冲并将其施加到PDP的维持扫描脉冲发生器。

公开(公告)号：US06972740B2

公开(公告)日：2005-12-06

申请号：US10425541

申请日：2003-04-28

申请人： Soo-Jin Lee ,  Woo-Jin Kim ,  Im-Su Choi

发明人： Soo-Jin Lee ,  Woo-Jin Kim ,  Im-Su Choi

IPC分类号： G09G3/20 ,  G09G3/28

CPC分类号： G09G3/2007 ,  G09G3/296 ,  G09G2320/0257 ,  G09G2320/0626 ,  G09G2360/16

摘要： An after-image prevention apparatus and method for a plasma display panel having a plurality of address electrodes and a plurality of scan and sustain electrodes arranged in pairs and in a zigzag pattern. An average signal level until the current frame from currently input picture data and an average signal level of each cell until the previous frame as stored in a memory section is calculated. The average signal level is compared with the picture data. An attenuation coefficient is generated corresponding to the difference between the average signal level and the picture data. The picture data is multiplied by the attenuation coefficient to output correction data, thereby preventing an after-image phenomenon on the plasma display panel.

摘要翻译： 一种用于等离子体显示面板的后置图像防止装置和方法，其具有多个地址电极和成对地布置成Z字形图案的多个扫描和维持电极。 计算从当前输入图像数据起的当前帧直到存储在存储器部分中的前一帧之前的每个单元的平均信号电平的平均信号电平。 将平均信号电平与图像数据进行比较。 根据平均信号电平和图像数据之间的差异产生衰减系数。 图像数据乘以衰减系数以输出校正数据，从而防止等离子体显示面板上的后图像现象。

公开(公告)号：US20050110707A1

公开(公告)日：2005-05-26

申请号：US10977940

申请日：2004-11-01

申请人： Im-Su Choi

发明人： Im-Su Choi

IPC分类号： G09F9/313 ,  G09G3/28 ,  G09G5/10 ,  H01J17/49

CPC分类号： G09G3/2803 ,  G09G3/2944 ,  G09G2320/0271

摘要： A method of driving a discharge display panel includes steps (a) thru (c) as follows. In step (a), the number of sustaining discharge pulses is set for each sustaining discharge period so as to be proportional to a gray-scale weight assigned to each sub-field and so as to be inversely proportional to an average signal level of each frame. In step (b), when a frame has an average signal level at which ratios between the gray-scale weights of the respective sub-fields are not varied in accordance with the set number of sustaining discharge pulses, the driving is performed in accordance with the set number of sustaining discharge pulses. In step (c), when the frame has an average signal level at which the ratios between the gray-scale weights of the respective sub-fields are varied in accordance with the set number of sustaining discharge pulses, a signal level of image data is adjusted and the driving is performed in accordance with a gain inversely proportional to the average signal level regardless of the set number of sustaining discharge pulses. An apparatus for driving a discharge display panel comprises means for performing functions corresponding to steps (a) thru (c).

摘要翻译： 驱动放电显示面板的方法包括以下步骤（a）至（c）。 在步骤（a）中，对于每个维持放电期间设定维持放电脉冲的数量，使其与分配给每个子场的灰度权重成比例，并与每个子场的平均信号电平成反比 帧。 在步骤（b）中，当帧具有根据设定的维持放电脉冲数而不改变各个子场的灰度级权重之间的比率的平均信号电平时，根据 设定的持续放电脉冲数。 在步骤（c）中，当帧具有根据设定的持续放电脉冲数来改变各个子场的灰度级权重之间的比率的平均信号电平时，图像数据的信号电平为 并且根据与平均信号电平成反比的增益执行驱动，而不管设定的持续放电脉冲数如何。 用于驱动放电显示面板的装置包括用于执行与步骤（a）至（c）相对应的功能的装置。

公开(公告)号：US20050073616A1

公开(公告)日：2005-04-07

申请号：US10951873

申请日：2004-09-29

申请人： Mi-Young Joo ,  Im-Su Choi

发明人： Mi-Young Joo ,  Im-Su Choi

IPC分类号： H04N5/66 ,  G09F9/313 ,  G09G3/20 ,  G09G3/291 ,  G09G3/294 ,  G09G3/296 ,  H01J17/49 ,  H04N5/21 ,  H04N7/01

CPC分类号： G09G3/2029 ,  G09G3/204 ,  G09G3/288 ,  G09G2320/0247 ,  G09G2320/0266 ,  G09G2360/16

摘要： A method and apparatus for reducing flicker when displaying pictures on a plasma display panel, based on an input phase alternation line (PAL) video signal of 50 Hz. Video signal data include successive first and second sub-field groups. When the number of sub-fields in the first sub-field group is more than that of sub-fields in the second sub-field group, the start or end points of the first and second sub-field groups are fixed, based on whether the video signal has a load ratio higher than a threshold value. When the number of sub-fields in the first sub-field group is less than that of sub-fields in the second sub-field group, the start or end points of the first and second sub-field groups are fixed, based on whether the video signal has a load ratio higher than a threshold value.

摘要翻译： 一种基于50Hz的输入相位交替线（PAL）视频信号，在等离子体显示面板上显示图像时减少闪烁的方法和装置。 视频信号数据包括连续的第一和第二子场组。 当第一子字段组中的子字段的数量大于第二子字段组中的子字段的数量时，第一和第二子字段组的起点或终点是基于是否 视频信号具有高于阈值的负载比。 当第一子字段组中的子字段数小于第二子字段组中子字段的数量时，第一和第二子字段组的起点或终点是基于 视频信号具有高于阈值的负载比。

公开(公告)号：US20100315357A1

公开(公告)日：2010-12-16

申请号：US12646955

申请日：2009-12-23

申请人： Im-Su Choi ,  Hyun-Chul Do

发明人： Im-Su Choi ,  Hyun-Chul Do

IPC分类号： G06F3/033 ,  G06F3/041

CPC分类号： G06F3/037

摘要： An electronic pen for detecting a touch location on a display panel by detecting infrared rays generated by the display panel, the electronic pen including an infrared sensor that detects the infrared rays and generates a detection signal; an amplifying unit that amplifies the detection signal; a low pass filter that filters high-frequency elements from the amplified detection signal; and a location detecting unit that detects the location on the display panel touched by the electronic pen based on the filtered detection signal.

摘要翻译： 一种用于通过检测由显示面板产生的红外线来检测显示面板上的触摸位置的电子笔，所述电子笔包括检测红外线并产生检测信号的红外传感器; 放大单元，其放大检测信号; 低通滤波器，用于从放大的检测信号中滤出高频元件; 以及位置检测单元，其基于滤波的检测信号来检测由电子笔触摸的显示面板上的位置。