公开(公告)号：US5696550A

公开(公告)日：1997-12-09

申请号：US502533

申请日：1995-07-14

申请人： Hiroyuki Aoki ,  Yoshihisa Matsumura ,  Hiroto Satoh ,  Teruhiko Nagashima ,  Masaki Hayashi

发明人： Hiroyuki Aoki ,  Yoshihisa Matsumura ,  Hiroto Satoh ,  Teruhiko Nagashima ,  Masaki Hayashi

IPC分类号： H04N7/18

CPC分类号： G02F1/1309 ,  G02F1/1303 ,  H04N7/18 ,  G02F2001/136254 ,  G02F2001/136263

摘要： An image quality inspection system determines view angle dependent defects by capturing an LCD image viewed obliquely over the entire LCD panel while in focus. The system obtains the positions of each of the LCD pixels from the distorted screen as a CCD pixel address and captures the CCD image precisely. In a first embodiment, a second CCD camera has a built-in CCD area sensor and measures the contrast of the LCD obliquely. The second CCD camera has a built-in tilt lens system or a built-in shift lens systems which allows it to focus on the entire LCD panel plane. In order to convert the distorted image on the CCD pixels to a normal LCD image, an LCD driver section generates a calibration pattern, an image measuring section converts the measured values of the CCD pixels to digital signals, a CCD address setting for the LCD pixels seeks sampling addresses of the entire LCD pixels as real numbers, and a presampling processor uses interpolation to convert the digital signals to an image having the number of pixels of the LCD panel. In a second embodiment, an image element, such as a CCD, is mobile in parallel with the lens plane in all directions. A lens is mobile vertically with respect to the above image element. Together, the lens and the image element provide a camera assembly which is combined as one body.

摘要翻译： 图像质量检查系统通过捕获在整个LCD面板上倾斜观看的LCD图像来确定视角相关缺陷。 系统从失真的屏幕中获取每个LCD像素的位置作为CCD像素地址，并精确地捕获CCD图像。 在第一实施例中，第二CCD照相机具有内置的CCD区域传感器，并且倾斜地测量LCD的对比度。 第二台CCD相机具有内置的倾斜透镜系统或内置的移动透镜系统，可以将其集中在整个LCD面板平面上。 为了将CCD像素上的失真图像转换为普通的LCD图像，LCD驱动器部分产生校准图案，图像测量部分将CCD像素的测量值转换为数字信号，LCD像素的CCD地址设置 寻求整个LCD像素的采样地址作为实数，并且预采样处理器使用内插将数字信号转换为具有LCD面板的像素数的图像。 在第二实施例中，诸如CCD的图像元件在透镜平面的所有方向上平行移动。 透镜相对于上述图像元件垂直移动。 一起，透镜和图像元件提供一个组合为一体的照相机组件。

公开(公告)号：US5686959A

公开(公告)日：1997-11-11

申请号：US515373

申请日：1995-08-15

申请人： Masaki Hayashi ,  Hiroto Satoh ,  Teruhiko Nagashima ,  Hiroyuki Aoki

发明人： Masaki Hayashi ,  Hiroto Satoh ,  Teruhiko Nagashima ,  Hiroyuki Aoki

IPC分类号： G01N21/88 ,  G06T1/00 ,  H04N1/00 ,  H04N7/18 ,  H04N17/04

CPC分类号： H04N1/00015 ,  H04N1/00002 ,  H04N1/00031 ,  H04N1/00053 ,  H04N1/00058 ,  H04N17/04

摘要： An image quality inspection system to test a display panel with high resolution and low cost by forming a synthesized contrast image of the display panel is disclosed. The image quality inspection system includes a camera section with a built-in image element to capture the image contrast data of the display panel, a rotating plate holding optical filters, an optical lens section having a focal adjustment mechanism for forming an image on the camera section, two parallel plates to move the image by thickness and rotating tilt angles of the plates, a plurality of motors to drive the parallel plates and the parallel plates, an A/D conversion section that converts the image contrast data output from the camera section to digital signals, an image memory that stores the contrast data converted to the digital signal, an image synthesis memory that performs an image fitting process in accordance with image motion controls by the parallel plates and produces a single image of the display panel, and a CPU control section that controls an image synthesis process in the image synthesis memory.

摘要翻译： 公开了一种通过形成显示面板的合成对比图像来测试具有高分辨率和低成本的显示面板的图像质量检查系统。 图像质量检查系统包括具有内置图像元件的相机部分，以捕获显示面板的图像对比度数据，旋转板保持滤光器，具有用于在相机上形成图像的焦点调节机构的光学透镜部分 两个平行板，以使板的厚度和旋转倾斜角度移动图像，多个电动机驱动平行板和平行板; A / D转换部分，转换从相机部分输出的图像对比度数据 数字信号，存储转换为数字信号的对比度数据的图像存储器，根据平行板的图像运动控制进行图像拟合处理的图像合成存储器，并产生显示面板的单个图像，以及 CPU控制部分，其控制图像合成存储器中的图像合成处理。