Backlight device and liquid crystal display apparatus
    1.
    发明授权
    Backlight device and liquid crystal display apparatus 有权
    背光装置和液晶显示装置

    公开(公告)号:US08783932B2

    公开(公告)日:2014-07-22

    申请号:US13641052

    申请日:2011-04-14

    IPC分类号: F21V7/04

    摘要: A planar light source device includes a first light source for emitting a first light ray having a punctate spatial luminance distribution; a second light source for emitting a second light ray; a first spatial luminance distribution conversion portion for changing the first light ray to a linear spatial luminance distribution; a second spatial luminance distribution conversion portion for changing a spatial luminance distribution of the first and second light rays to a planar spatial luminance distribution; wherein the first light ray is a laser light; the second light ray has a divergence angle larger than the divergence angle of the first light ray when the first light ray is emitted from the first light source; and a slow-axis direction of the first light ray entering the second spatial luminance distribution conversion portion is parallel to an outgoing direction of the planar light.

    摘要翻译: 平面光源装置包括用于发射具有点状空间亮度分布的第一光线的第一光源; 用于发射第二光线的第二光源; 用于将第一光线改变为线性空间亮度分布的第一空间亮度分布转换部分; 用于将第一和第二光线的空间亮度分布改变为平面空间亮度分布的第二空间亮度分布转换部分; 其中所述第一光线是激光; 当从第一光源发射第一光线时,第二光线具有大于第一光线的发散角的发散角; 并且进入第二空间亮度分布变换部的第一光线的慢轴方向与平面光的出射方向平行。

    Image displaying apparatus and image displaying method
    4.
    发明申请
    Image displaying apparatus and image displaying method 失效
    图像显示装置和图像显示方法

    公开(公告)号:US20080246715A1

    公开(公告)日:2008-10-09

    申请号:US12003185

    申请日:2007-12-20

    IPC分类号: G09G3/36

    CPC分类号: H04N9/3155

    摘要: In an image displaying apparatus, first and second detecting units detect quantities of light propagating through a light path at two different locations. A variation calculating unit calculates the variation in the light quantity in the light path based on the quantities of light detected by each of the first and second detecting units. A controlling unit controls the quantity of light propagated to the screen if the variation in the light quantity exceeds a predetermined value.

    摘要翻译: 在图像显示装置中,第一和第二检测单元检测在两个不同位置通过光路传播的光量。 变化计算单元基于由第一和第二检测单元中的每一个检测到的光量来计算光路中的光量的变化。 如果光量的变化超过预定值,则控制单元控制传播到屏幕的光量。

    Image displaying apparatus and image displaying method
    5.
    发明授权
    Image displaying apparatus and image displaying method 失效
    图像显示装置和图像显示方法

    公开(公告)号:US08125426B2

    公开(公告)日:2012-02-28

    申请号:US12003185

    申请日:2007-12-20

    IPC分类号: G09G3/36

    CPC分类号: H04N9/3155

    摘要: In an image displaying apparatus, first and second detecting units detect quantities of light propagating through a light path at two different locations. A variation calculating unit calculates the variation in the light quantity in the light path based on the quantities of light detected by each of the first and second detecting units. A controlling unit controls the quantity of light propagated to the screen if the variation in the light quantity exceeds a predetermined value.

    摘要翻译: 在图像显示装置中,第一和第二检测单元检测在两个不同位置通过光路传播的光量。 变化计算单元基于由第一和第二检测单元中的每一个检测到的光量来计算光路中的光量的变化。 如果光量的变化超过预定值,则控制单元控制传播到屏幕的光量。

    Block noise detector and detection method, and block noise reducer and reduction method
    6.
    发明授权
    Block noise detector and detection method, and block noise reducer and reduction method 失效
    块噪声检测器和检测方法,以及块式降噪器和还原法

    公开(公告)号:US07986855B2

    公开(公告)日:2011-07-26

    申请号:US12071028

    申请日:2008-02-14

    IPC分类号: G06K9/40 H04N1/407 H04B14/04

    摘要: A block noise detector has a spatial difference calculator that calculates differences between values of adjacent pixels. A spatial difference comparator detects edges by comparing the calculated differences. Eight counters count edges detected at different groups of positions spaced eight pixels apart in each horizontal line. The maximum count and the group of positions at which it occurs are detected at the end of each horizontal line to detect block noise and the positions of the block boundaries. The block noise detector is small in size because it only has to count edges in one line at a time, and detects edges accurately by comparing the difference at a given position separately with differences to the left and differences to the right.

    摘要翻译: 块噪声检测器具有计算相邻像素的值之间的差异的空间差分计算器。 空间差异比较器通​​过比较计算出的差异来检测边缘。 八个计数器计数在每个水平线间隔八个像素的不同位置组中检测到的边缘。 在每条水平线的末端检测最大计数和发生位置组,以检测块噪声和块边界的位置。 块噪声检测器尺寸小,因为它只能一次计数一行中的边沿,并且通过将给定位置处的差异与左侧的差异和向右的差异进行比较来准确地检测边缘。

    Block noise detector and detection method, and block noise reducer and reduction method
    7.
    发明申请
    Block noise detector and detection method, and block noise reducer and reduction method 失效
    块噪声检测器和检测方法,以及块式降噪器和还原法

    公开(公告)号:US20080199102A1

    公开(公告)日:2008-08-21

    申请号:US12071028

    申请日:2008-02-14

    IPC分类号: G06K9/40

    摘要: A block noise detector has a spatial difference calculator that calculates differences between values of adjacent pixels. A spatial difference comparator detects edges by comparing the calculated differences. Eight counters count edges detected at different groups of positions spaced eight pixels apart in each horizontal line. The maximum count and the group of positions at which it occurs are detected at the end of each horizontal line to detect block noise and the positions of the block boundaries. The block noise detector is small in size because it only has to count edges in one line at a time, and detects edges accurately by comparing the difference at a given position separately with differences to the left and differences to the right.

    摘要翻译: 块噪声检测器具有计算相邻像素的值之间的差异的空间差分计算器。 空间差异比较器通​​过比较计算出的差异来检测边缘。 八个计数器计数在每个水平线间隔八个像素的不同位置组中检测到的边缘。 在每条水平线的末端检测最大计数和发生位置组,以检测块噪声和块边界的位置。 块噪声检测器尺寸小,因为它只能一次计数一行中的边沿,并且通过将给定位置处的差异与左侧的差异和向右的差异进行比较来准确地检测边缘。

    Motion blur detecting apparatus and method, image processing apparatus, and image display apparatus
    8.
    发明授权
    Motion blur detecting apparatus and method, image processing apparatus, and image display apparatus 失效
    运动模糊检测装置和方法,图像处理装置和图像显示装置

    公开(公告)号:US08218888B2

    公开(公告)日:2012-07-10

    申请号:US12517434

    申请日:2009-02-12

    IPC分类号: G06K9/40

    摘要: Motion blur periods (bf) are detected (14) from gradation differences (g1) between a first image signal (d1) and a second image signal (d2), gradation differences (g2) between the second image signal (d2) and a third image signal (d3), and results of the detection of transition periods (h) in the gradations of the second image signal (d2), and the second image signal (d2) is corrected (3) only during the detected motion blur periods (bf). Transition periods (h) are deemed to occur when, for example, the absolute value of a gradation change in the second image signal is greater than a first predetermined threshold value (S1) and less than a second predetermined threshold value S2 (

    摘要翻译: 从第一图像信号(d1)和第二图像信号(d2)之间的灰度差(g1)检测运动模糊周期(bf)(14),第二图像信号(d2)和第三图像信号 图像信号(d3)以及检测第二图像信号(d2)的灰度中的转变周期(h)的结果,并且第二图像信号(d2)仅在检测到的运动模糊周期(3 bf)。 当例如第二图像信号中的灰度变化的绝对值大于第一预定阈值(S1)且小于第二预定阈值S2(

    Image encoding device, image processing device, image display device, image encoding method, and image processing method
    9.
    发明授权
    Image encoding device, image processing device, image display device, image encoding method, and image processing method 有权
    图像编码装置,图像处理装置,图像显示装置,图像编码方法以及图像处理方法

    公开(公告)号:US08237689B2

    公开(公告)日:2012-08-07

    申请号:US11918128

    申请日:2006-10-18

    IPC分类号: G06F3/038

    摘要: An image encoding device includes a dynamic range generator for outputting dynamic range data Dd1 of block image data Dc1, an average value generator for outputting average value data De1 of the block image data Dc1, a number-of-pixel reducing unit 20 for decreasing number of pixels of the block image data by reduction-number of pixels to generate reduced-number-of-pixel block image data Dc1′, an encoding parameter generator 18 for generating encoding parameter pa1 specifying a quantization bit rate and the reduction-number of pixels in accordance with the dynamic range data Dd1, a quantization threshold generator 19 for generating a quantization threshold value tb1, and an image data quantizer 21 for generating quantized image data Df1 from the reduced-number-of-pixel block image data Dc1′ with use of the quantization threshold value tb1.

    摘要翻译: 图像编码装置包括用于输出块图像数据Dc1的动态范围数据Dd1的动态范围发生器,用于输出块图像数据Dc1的平均值数据De1的平均值生成器,用于减少数字的像素数减少单元20 通过减少像素数减少像素块图像数据Dc1'来生成块图像数据的像素,编码参数生成器18,用于生成指定量化比特率的编码参数pa1和像素的缩小数目 根据动态范围数据Dd1,用于产生量化阈值tb1的量化阈值生成器19和用于从使用中的减少数量的像素块图像数据Dc1'生成量化图像数据Df1的图像数据量化器21 的量化阈值tb1。

    Image Encoding Device, Image Processing Device, Image Display Device, Image Encoding Method, and Image Processing Method
    10.
    发明申请
    Image Encoding Device, Image Processing Device, Image Display Device, Image Encoding Method, and Image Processing Method 有权
    图像编码装置,图像处理装置,图像显示装置,图像编码方法和图像处理方法

    公开(公告)号:US20090085896A1

    公开(公告)日:2009-04-02

    申请号:US11918128

    申请日:2006-10-18

    IPC分类号: G09G5/00

    摘要: An image encoding device includes a dynamic range generator for outputting dynamic range data Dd1 of block image data Dc1, an average value generator for outputting average value data De1 of the block image data Dc1, a number-of-pixel reducing unit 20 for decreasing number of pixels of the block image data by reduction-number of pixels to generate reduced-number-of-pixel block image data Dc1′, an encoding parameter generator 18 for generating encoding parameter pa1 specifying a quantization bit rate and the reduction-number of pixels in accordance with the dynamic range data Dd1, a quantization threshold generator 19 for generating a quantization threshold value tb1, and an image data quantizer 21 for generating quantized image data Df1 from the reduced-number-of-pixel block image data Dc1′ with use of the quantization threshold value tb1.

    摘要翻译: 图像编码装置包括用于输出块图像数据Dc1的动态范围数据Dd1的动态范围发生器,用于输出块图像数据Dc1的平均值数据De1的平均值生成器,用于减少数字的像素数减少单元20 通过减少像素数减少像素块图像数据Dc1'来生成块图像数据的像素,编码参数生成器18,用于生成指定量化比特率的编码参数pa1和像素的缩小数目 根据动态范围数据Dd1,用于产生量化阈值tb1的量化阈值生成器19和用于从使用中的减少数量的像素块图像数据Dc1'生成量化图像数据Df1的图像数据量化器21 的量化阈值tb1。