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    • 1. 发明授权
    • Coordinate input system and coordinate input method
    • 坐标输入系统和坐标输入法
    • US07532204B2
    • 2009-05-12
    • US11214778
    • 2005-08-31
    • Yasunori AkeTomohiko Yamamoto
    • Yasunori AkeTomohiko Yamamoto
    • G06F3/041
    • G06F3/0416G06F3/0418G06F3/0433
    • A coordinate input system includes: a digitizer for indicating coordinate positions; a controller for extracting a plurality of coordinate data units from the indicated coordinate positions; a temporary storage memory for sequentially storing the extracted coordinate data units; a cosine value deriving section for defining vectors each connecting two of points associated with the respective coordinate data units and for deriving a cosine value of an angle formed by adjacent two of the vectors sandwiching a point selected from the points; and a control circuit for discarding one of the coordinate data units associated with the selected point when the cosine value is smaller than a given value and for transmitting and inputting one of the coordinate data units associated with the selected point when the cosine value is equal to or larger than the given value.
    • 坐标输入系统包括:用于指示坐标位置的数字化仪; 控制器,用于从指示的坐标位置提取多个坐标数据单元; 临时存储存储器,用于顺序地存储所提取的坐标数据单元; 余弦值导出部分,用于定义每个连接与各个坐标数据单元相关联的两个点的矢量,并且用于导出由相对于从所述点选择的点的相邻两个矢量形成的角度的余弦值; 以及控制电路,用于当余弦值小于给定值时,丢弃与所选择的点相关联的坐标数据单元之一,并且当余弦值等于时发送和输入与所选择的点相关联的一个坐标数据单元 或大于给定值。
    • 6. 发明申请
    • PLANAR ILLUMINATION DEVICE AND DISPLAY DEVICE PROVIDED WITH THE SAME
    • 平面照明设备和显示设备
    • US20120230008A1
    • 2012-09-13
    • US13508552
    • 2010-10-01
    • Yuhsaku AjichiTomohiko Yamamoto
    • Yuhsaku AjichiTomohiko Yamamoto
    • F21V13/12
    • G02F1/133512G02B6/0031G02B6/0051G02B6/0053G02B6/0056G02B6/0088G02F1/133536G02F1/133615
    • An object is to implement a narrowed picture-frame while suppressing the occurrence of light leakage and a reduction in luminance in an edge-light type backlight device. A backlight device is composed of LEDs (40); a side chassis (51) supporting a board having the LEDs (40) mounted thereon; a light guide plate (20) for allowing light emitted from the LEDs (40) to exit toward a liquid crystal panel in a planar manner; a reflection sheet (30) for allowing light traveling toward a back surface side within the light guide plate (20) to be reflected thereby; optical sheets (10) including a reflection type polarizer (11), a prism sheet (12), and a diffuser (13); and a top chassis (52) disposed on top of the optical sheets (10). Black printing (60) is provided in a part of the region of the diffuser (13). A length of the reflection type polarizer (11) is longer than a length of the light guide plate (20) such that an edge of the reflection type polarizer (11) is located closer to a side of the LEDs (40) than is an edge surface of the light guide plate (20).
    • 本发明的目的是在抑制边缘光型背光装置中的光泄漏的发生和亮度的降低的同时实现缩小的相框。 背光装置由LED(40)构成; 支撑安装在其上的LED(40)的板的侧面底架(51) 导光板(20),其用于使从所述LED(40)发射的光以平面方式朝向液晶面板排出; 用于允许在导光板(20)内朝向背面侧移动的光被反射的反射片(30) 包括反射型偏振器(11),棱镜片(12)和扩散器(13)的光学片(10) 以及设置在所述光学片(10)的顶部上的顶板(52)。 黑色印刷(60)设置在扩散器(13)的区域的一部分中。 反射型偏振器(11)的长度比导光板(20)的长度长,使得反射型偏振片(11)的边缘比LED(40)的一侧更靠近LED 导光板(20)的边缘表面。