公开(公告)号：US08963876B2

公开(公告)日：2015-02-24

申请号：US13453632

申请日：2012-04-23

申请人： Dong-Won Lee ,  Hee-Chul Hwang

发明人： Dong-Won Lee ,  Hee-Chul Hwang

IPC分类号： G06F3/045 ,  G06F3/044 ,  G06F3/041

CPC分类号： G06F3/0416 ,  G06F3/044

摘要： A touch sensing system comprises: a touch sensing unit which includes regions having predetermined coordinates; and a baseline updating unit for updating a baseline by reflecting sensing signals outputted from the touch sensing unit. The baseline updating unit includes a comparator for calculating difference values between the sensing signal of an n-th frame and the baseline of an n−1-th frame for each region, and for comparing the difference values with predetermined reference values. The touch sensing system further comprises an arithmetic unit for setting the baseline of the n−1-th frame as the baseline of the n-th frame for a region in which the difference values are larger than the reference values and for the region adjacent to it, and for updating the baseline of the n-th frame by a predetermined arithmetic for a remaining region.

摘要翻译： 触摸感测系统包括：触摸感测单元，其包括具有预定坐标的区域; 以及基线更新单元，用于通过反映从触摸感测单元输出的感测信号来更新基线。 基线更新单元包括比较器，用于计算第n帧的感测信号与每个区域的第n-1帧的基线之间的差值，并且用于将差值与预定的参考值进行比较。 触摸感测系统还包括用于将第n-1帧的基线设置为差值大于参考值的区域的第n帧的基线的算术单元，以及与第 并且用于通过用于剩余区域的预定算术来更新第n帧的基线。

公开(公告)号：US08847917B2

公开(公告)日：2014-09-30

申请号：US12834157

申请日：2010-07-12

申请人： Jin-Woo Park ,  Sang-Uk Kim ,  Hee-Chul Hwang ,  Mu-Kyung Jeon ,  Hideo Yoshimura

发明人： Jin-Woo Park ,  Sang-Uk Kim ,  Hee-Chul Hwang ,  Mu-Kyung Jeon ,  Hideo Yoshimura

IPC分类号： G06F3/042 ,  G06F3/044 ,  G06F3/041

CPC分类号： G06F3/0412 ,  G06F3/044

摘要： A liquid crystal display (LCD) with a built-in touch screen includes: a first substrate including a sensor area having a plurality of photosensors; a second substrate positioned over the first substrate, and including a color filter, a light receiving portion, and a transparent electrode layer and a front polarizing plate; an LCD panel including a liquid crystal layer interposed between the first and second substrates; a touch screen driver circuit to measure a capacitance variation sensed through a first sensing line connected to the transparent electrode layer and to calculate a touch area using optical information sensed through a second sensing line connected to the photosensors when a contact object is in contact with the LCD panel, and to output position information of the contact object, sensed by determining whether a touch occurs and whether a multi-touch occurs using the capacitance variation and the touch area.

摘要翻译： 具有内置触摸屏的液晶显示器（LCD）包括：第一基板，包括具有多个光电传感器的传感器区域; 位于第一基板上的第二基板，包括滤色器，受光部，以及透明电极层和前偏振片; 液晶显示面板，包括插入在第一和第二基板之间的液晶层; 触摸屏驱动器电路，用于测量通过连接到透明电极层的第一感测线检测到的电容变化，并且当接触物体与接触物体接触时，使用通过连接到光电传感器的第二感测线检测到的光学信息来计算触摸区域 LCD面板，并且通过确定是否发生触摸并且使用电容变化和触摸区域是否发生多点触摸来输出接触对象的位置信息。

公开(公告)号：US08599172B2

公开(公告)日：2013-12-03

申请号：US12894343

申请日：2010-09-30

申请人： Jin-Woo Park ,  Sang-Uk Kim ,  Hee-Chul Hwang ,  Mu-Kyung Jeon ,  Hideo Yoshimura

发明人： Jin-Woo Park ,  Sang-Uk Kim ,  Hee-Chul Hwang ,  Mu-Kyung Jeon ,  Hideo Yoshimura

IPC分类号： G09G5/00

CPC分类号： G06F3/042 ,  G06F3/0412

摘要： A flat panel display (FPD) with a photo sensor type built-in touch screen capable of performing a scan operation. The FPD with the built-in touch screen includes a plurality of unit pixels disposed in a display region of the FPD and arranged in pixel groups and photo sensors adjacent to the unit pixels of the respective pixel groups. In a scan operation mode, the plurality of unit pixels in each of the pixel groups sequentially emit light to perform a scan operation using the light emitted from the unit pixels and reflected by a scan object to be scanned to be incident on the photo sensors.

摘要翻译： 具有能够执行扫描操作的内置触摸屏的光传感器类型的平板显示器（FPD）。 具有内置触摸屏的FPD包括设置在FPD的显示区域中的多个单位像素，并且以与像素组的单位像素相邻的像素组和光电传感器布置。 在扫描操作模式中，每个像素组中的多个单位像素顺序地发光，以使用从单位像素发出的光进行扫描操作，并由待扫描的扫描对象反射入射在光传感器上。

公开(公告)号：US20130154965A1

公开(公告)日：2013-06-20

申请号：US13572575

申请日：2012-08-10

申请人： Hee-Chul Hwang ,  Dong-Won Lee ,  Joo-Hyung Lee

发明人： Hee-Chul Hwang ,  Dong-Won Lee ,  Joo-Hyung Lee

IPC分类号： G06F3/041

CPC分类号： G06F3/044 ,  G06F3/0416

摘要： A touch sensing system for detecting at least one touch is provided. The touch sensing system includes a touch sensing unit having a plurality of touchable regions for outputting sensing signals of the at least one touch, an operating unit for determining difference values between the sensing signals and a baseline value, a group setting unit for grouping ones of the regions in which the difference values exist into one or more groups, and a threshold value determining unit for determining maximum difference values from the groups to determine first threshold values of the groups corresponding to the determined maximum difference values. The touch sensing system increases the correctness of the touch detection by adaptively changing the first threshold value in accordance with the touch strength. A method of driving the touch sensing system is also provided.

摘要翻译： 提供了用于检测至少一个触摸的触摸感测系统。 触摸感测系统包括触摸感测单元，其具有用于输出至少一个触摸的感测信号的多个可触摸区域，用于确定感测信号与基线值之间的差值的操作单元，用于对感测信号进行分组的组设定单元 差分值存在于一个或多个组中的区域，以及阈值确定单元，用于确定来自组的最大差值，以确定与所确定的最大差值对应的组的第一阈值。 触摸感测系统通过根据触摸强度自适应地改变第一阈值来增加触摸检测的正确性。 还提供了一种驱动触摸感测系统的方法。

公开(公告)号：US20130106735A1

公开(公告)日：2013-05-02

申请号：US13453632

申请日：2012-04-23

申请人： Dong-Won Lee ,  Hee-Chul Hwang

发明人： Dong-Won Lee ,  Hee-Chul Hwang

IPC分类号： G06F3/041

CPC分类号： G06F3/0416 ,  G06F3/044

摘要： A touch sensing system comprises: a touch sensing unit which includes regions having predetermined coordinates; and a baseline updating unit for updating a baseline by reflecting sensing signals outputted from the touch sensing unit. The baseline updating unit includes a comparator for calculating difference values between the sensing signal of an n-th frame and the baseline of an n−1-th frame for each region, and for comparing the difference values with predetermined reference values. The touch sensing system further comprises an arithmetic unit for setting the baseline of the n−1-th frame as the baseline of the n-th frame for a region in which the difference values are larger than the reference values and for the region adjacent to it, and for updating the baseline of the n-th frame by a predetermined arithmetic for a remaining region.

摘要翻译： 触摸感测系统包括：触摸感测单元，其包括具有预定坐标的区域; 以及基线更新单元，用于通过反映从触摸感测单元输出的感测信号来更新基线。 基线更新单元包括比较器，用于计算第n帧的感测信号与每个区域的第n-1帧的基线之间的差值，并且用于将差值与预定的参考值进行比较。 触摸感测系统还包括用于将第n-1帧的基线设置为差值大于参考值的区域的第n帧的基线的算术单元，以及与第 并且用于通过用于剩余区域的预定算术来更新第n帧的基线。

公开(公告)号：US20110057908A1

公开(公告)日：2011-03-10

申请号：US12789930

申请日：2010-05-28

申请人： Jin-Woo PARK ,  Sang-Uk Kim ,  Hee-Chul Hwang ,  Mu-Kyung Jeon ,  Hideo Yoshimura

发明人： Jin-Woo PARK ,  Sang-Uk Kim ,  Hee-Chul Hwang ,  Mu-Kyung Jeon ,  Hideo Yoshimura

IPC分类号： G06F3/041 ,  G02F1/135 ,  G09G3/36

CPC分类号： G06F3/042 ,  G02F1/13318 ,  G02F1/13338 ,  G06F3/0412

摘要： A liquid crystal display device having a built in touch screen including a first substrate having pixel units comprising: a plurality of pixels displaying an image and sensor regions having light sensors formed adjacent to the corresponding pixel units to sense a position of a contacted object; a second substrate disposed on the first substrate, comprising: color filters formed on regions corresponding to the pixel units and first black matrices formed on regions corresponding to the sensor regions of the pixel units; a liquid crystal layer interposed between the first substrate and the second substrate; and a backlight assembly disposed on a bottom portion of the first substrate and providing light to the first substrate and the second substrate. The liquid crystal display device with the built in touch screen determines a point of contact on the touch screen.

摘要翻译： 一种具有内置触摸屏的液晶显示装置，包括具有像素单元的第一基板，所述第一基板具有：显示图像的多个像素和具有与相应像素单元相邻形成的光传感器的传感器区域，以感测被接触物体的位置; 设置在第一基板上的第二基板，包括：形成在与像素单元的传感器区域对应的区域上形成的与像素单元对应的区域上的滤色器和形成的第一黑色矩阵; 插入在第一基板和第二基板之间的液晶层; 以及背光组件，其设置在所述第一基板的底部并且向所述第一基板和所述第二基板提供光。 具有内置触摸屏的液晶显示装置确定触摸屏上的接触点。

公开(公告)号：US20100097349A1

公开(公告)日：2010-04-22

申请号：US12566512

申请日：2009-09-24

申请人： Jae-Shin Kim ,  Ja-Seung Ku ,  Min-Jeung Lee ,  Hee-Chul Hwang

发明人： Jae-Shin Kim ,  Ja-Seung Ku ,  Min-Jeung Lee ,  Hee-Chul Hwang

IPC分类号： G06F3/042

CPC分类号： G06F3/042

摘要： A method of detecting a touch point includes detecting an edge image of a finger image from an input image, generating a touch point image utilizing the detected edge image, and calculating coordinates of the touch point from the touch point image. The touch point image may be generated by setting a center at a position separated by a set distance in a gradient direction with respect to a position where the edge image is detected, and generating the touch point image by summing up gradient magnitude values with respect to a set area based on the set center. The coordinates of multiple touch points may be calculated by updating coordinates of the multiple touch points according to the gradient magnitude values accumulatively summed up in the multiple touch points based on a comparison between the coordinates of the multiple touch points and the set distance.

摘要翻译： 检测触摸点的方法包括从输入图像检测手指图像的边缘图像，利用所检测的边缘图像生成触摸点图像，以及从触摸点图像计算触摸点的坐标。 触摸点图像可以通过将相对于检测到边缘图像的位置在梯度方向上分开设定距离的位置处的中心设置，并且通过将梯度幅度值相对于 基于设定中心的设定区域。 可以基于多个触摸点的坐标与设定距离之间的比较，根据在多个触摸点中累积地累加的梯度值来更新多个触摸点的坐标来计算多个触摸点的坐标。

公开(公告)号：US20110102365A1

公开(公告)日：2011-05-05

申请号：US12894343

申请日：2010-09-30

申请人： Jin-Woo PARK ,  Sang-Uk Kim ,  Hee-Chul Hwang ,  Mu-Kyung Jeon ,  Hideo Yoshimura

发明人： Jin-Woo PARK ,  Sang-Uk Kim ,  Hee-Chul Hwang ,  Mu-Kyung Jeon ,  Hideo Yoshimura

IPC分类号： G06F3/041

CPC分类号： G06F3/042 ,  G06F3/0412

摘要： A flat panel display (FPD) with a photo sensor type built-in touch screen capable of performing a scan operation. The FPD with the built-in touch screen includes a plurality of unit pixels disposed in a display region of the FPD and arranged in pixel groups and photo sensors adjacent to the unit pixels of the respective pixel groups. In a scan operation mode, the plurality of unit pixels in each of the pixel groups sequentially emit light to perform a scan operation using the light emitted from the unit pixels and reflected by a scan object to be scanned to be incident on the photo sensors.

摘要翻译： 具有能够执行扫描操作的内置触摸屏的光传感器类型的平板显示器（FPD）。 具有内置触摸屏的FPD包括设置在FPD的显示区域中的多个单位像素，并且以与像素组的单位像素相邻的像素组和光电传感器布置。 在扫描操作模式中，每个像素组中的多个单位像素顺序地发光，以使用从单位像素发出的光进行扫描操作，并由待扫描的扫描对象反射入射在光传感器上。

公开(公告)号：US20100283756A1

公开(公告)日：2010-11-11

申请号：US12694240

申请日：2010-01-26

申请人： Ja-Seung Ku ,  Jae-Shin Kim ,  Min-Jeung Lee ,  Hee-Chul Hwang

发明人： Ja-Seung Ku ,  Jae-Shin Kim ,  Min-Jeung Lee ,  Hee-Chul Hwang

IPC分类号： G06F3/045 ,  G06F3/042

CPC分类号： G06F3/0425 ,  G06F2203/04104 ,  G06F2203/04106

摘要： A method for recognizing a touch of an object on a display device including optical sensors, the method including: detecting a touch of an object by utilizing a contact-detecting layer in the display device; generating an image of the touch of the object corresponding to sensor signals sensed by the optical sensors; detecting touch points corresponding to the image of the touch of the object; and determining information of the touch of the object based on the detected touch points.

摘要翻译： 一种用于识别包括光学传感器的显示装置上的物体的触摸的方法，所述方法包括：通过利用所述显示装置中的接触检测层来检测物体的触摸; 产生对应于由光学传感器感测的传感器信号的对象的触摸的图像; 检测与对象的触摸的图像相对应的触摸点; 以及基于检测到的触摸点确定对象的触摸的信息。

公开(公告)号：US08933894B2

公开(公告)日：2015-01-13

申请号：US12789930

申请日：2010-05-28

申请人： Jin-Woo Park ,  Sang-Uk Kim ,  Hee-Chul Hwang ,  Mu-Kyung Jeon ,  Hideo Yoshimura

发明人： Jin-Woo Park ,  Sang-Uk Kim ,  Hee-Chul Hwang ,  Mu-Kyung Jeon ,  Hideo Yoshimura

IPC分类号： G06F3/041 ,  G06F3/042 ,  G02F1/1333 ,  G02F1/133

CPC分类号： G06F3/042 ,  G02F1/13318 ,  G02F1/13338 ,  G06F3/0412

摘要： A liquid crystal display device having a built in touch screen including a first substrate having pixel units comprising: a plurality of pixels displaying an image and sensor regions having light sensors formed adjacent to the corresponding pixel units to sense a position of a contacted object; a second substrate disposed on the first substrate, comprising: color filters formed on regions corresponding to the pixel units and first black matrices formed on regions corresponding to the sensor regions of the pixel units; a liquid crystal layer interposed between the first substrate and the second substrate; and a backlight assembly disposed on a bottom portion of the first substrate and providing light to the first substrate and the second substrate. The liquid crystal display device with the built in touch screen determines a point of contact on the touch screen.

摘要翻译： 一种具有内置触摸屏的液晶显示装置，包括具有像素单元的第一基板，所述第一基板具有：显示图像的多个像素和具有与相应像素单元相邻形成的光传感器的传感器区域，以感测被接触物体的位置; 设置在第一基板上的第二基板，包括：形成在与像素单元的传感器区域对应的区域上形成的与像素单元对应的区域上的滤色器和形成的第一黑色矩阵; 插入在第一基板和第二基板之间的液晶层; 以及背光组件，其设置在所述第一基板的底部并且向所述第一基板和所述第二基板提供光。 具有内置触摸屏的液晶显示装置确定触摸屏上的接触点。