Halftone display method and display apparatus for reducing halftone disturbances occurring in moving image portions
    1.
    发明授权
    Halftone display method and display apparatus for reducing halftone disturbances occurring in moving image portions 失效
    用于减少运动图像部分中出现的半色调干扰的半色调显示方法和显示装置

    公开(公告)号:US06496194B1

    公开(公告)日:2002-12-17

    申请号:US09427936

    申请日:1999-10-27

    IPC分类号: G09G502

    摘要: A halftone display method utilizes an activation sequence, having a plurality of luminance blocks predefined in each frame or field to display an image and having redundancy, that enables one gray-scale level to be expressed by any one of a plurality of combinations of subframes (luminance blocks). When determining luminance blocks for use to display gray scale of an arbitrary first pixel, the luminance blocks to be used for the first pixel are selected in accordance with a predetermined rule, based on how the luminance blocks are used for a second pixel located in close proximity to the first pixel. In this way, by actively utilizing the redundancy of the activation sequence, the occurrence of moving-image false contours (false color contours) in video can be minimized, and also a motion compensation equalizing pulse method can be effectively applied to further improve the image display quality.

    摘要翻译: 半色调显示方法利用激活序列,其具有在每个帧或场中预定义的多个亮度块来显示图像并具有冗余,其使得能够通过子帧的多个组合中的任何一个来表示灰度级 亮度块)。 当确定用于显示任意第一像素的灰度级的亮度块时,根据预定规则,基于如何将亮度块用于紧邻的第二像素,选择要用于第一像素的亮度块 接近第一个像素。 以这种方式,通过积极利用激活序列的冗余,可以最小化视频中的运动图像假轮廓(假颜色轮廓)的发生,并且还可以有效地应用运动补偿均衡脉冲方法来进一步改善图像 显示质量。

    Method of and apparatus for displaying halftone images
    3.
    发明授权
    Method of and apparatus for displaying halftone images 失效
    显示半色调图像的方法和装置

    公开(公告)号:US06529204B1

    公开(公告)日:2003-03-04

    申请号:US08883233

    申请日:1997-06-26

    IPC分类号: G09G510

    摘要: A method of displaying a dynamic halftone image on a display panel made of pixels divides each frame of the image into subframes and turns on and off the subframes. The method includes the steps of finding a line of pixels that simultaneously display a specific intensity level in a frame and another specific intensity level in the next frame, counting the number of pixels in the line, selecting corrective pulses, which turn on/off corresponding subframes to enable/disable corresponding intensity levels, according to the counted number and a change in the specific intensity levels between the frames, and adjusting original display signals for the pixels in the line according to the corrective pulses, respectively. The method eliminates halftone disturbance and false color contours from the image even if the moving speed of the image on the display panel is high.

    摘要翻译: 在由像素构成的显示面板上显示动态半色调图像的方法将图像的每一帧划分为子帧并打开和关闭子帧。 该方法包括以下步骤:找到同时在帧中显示特定强度水平并在下一帧中显示另一个特定强度水平的像素行,对行中的像素数进行计数,选择​​校正脉冲,其对应的开/关 根据所计数的数量和帧之间的特定强度水平的变化来启用/禁用对应的强度级别的子帧,并且分别根据校正脉冲调整该行中的像素的原始显示信号。 即使显示面板上的图像的移动速度高,该方法也可以消除来自图像的半色调干扰和伪色轮廓。

    Plasma display device having improved luminous efficacy
    7.
    发明申请
    Plasma display device having improved luminous efficacy 有权
    具有改善发光效率的等离子体显示装置

    公开(公告)号:US20070035474A1

    公开(公告)日:2007-02-15

    申请号:US11583849

    申请日:2006-10-20

    IPC分类号: G09G3/28

    摘要: There is provided a plasma display device capable of high luminous efficacy and stable driving for displaying images at various image display load factors. The plasma display device performs the sustain discharge for a light-emission display, and is configured to apply a sustain pulse voltage between a sustain electrode pair in a respective one of the plural discharge cells to generate a sustain discharge in a respective one of the following operating modes selected based upon use of the plasma display device: (a) generating a pre-discharge and then a main discharge; (b) generating a main discharge without a pre-discharge preceding the main discharge; and (c) switching between the mode (a) and the mode (b). The sustain voltage waveforms are used which compensate for an increase in voltage drop due to an increase in discharge current when the image display load factor is excessively increased.

    摘要翻译: 提供了一种具有高发光效率和稳定驱动的等离子体显示装置,用于在各种图像显示负载因子下显示图像。 等离子体显示装置对发光显示进行维持放电,并且构成为在多个放电单元的各一个之间的维持电极对之间施加维持脉冲电压,以在下述各个中产生维持放电 基于使用等离子体显示装置选择的操作模式:(a)产生预放电然后产生主放电; (b)在主放电之前产生不具有预放电的主放电; 和(c)在模式(a)和模式(b)之间切换。 使用维持电压波形,其补偿当图像显示负载因子过度增加时由于放电电流的增加导致的电压降的增加。

    Plasma display apparatus with increased peak luminance
    9.
    发明授权
    Plasma display apparatus with increased peak luminance 失效
    具有增加峰值亮度的等离子体显示装置

    公开(公告)号:US07535438B2

    公开(公告)日:2009-05-19

    申请号:US11101469

    申请日:2005-04-08

    IPC分类号: G09G3/28

    摘要: A PDP apparatus, the peak luminance of which has been improved with little modification of the existing circuit structure, has been disclosed, in which a thinning process that shortens an address period by hiding part of display lines in a fixed subfield of a low luminance is performed, the saved time is increased by an amount corresponding to that from which the luminance weight (the number of sustain discharge pulses, that is, the length of the sustain discharge period) of the thinned subfield of a low luminance is subtracted, and the remaining time is allocated at the ratio of the luminance weights on completion of the first step in each subfield.

    摘要翻译: 已经公开了一种已经改进了现有电路结构的峰值亮度得到改进的PDP装置,其中通过在低亮度的固定子场中隐藏显示行的一部分来缩短寻址周期的间隔处理是 所节省的时间增加与减去低亮度的稀疏子场的亮度权重(维持放电脉冲的数量,即维持放电期间的长度)的数量相对应的量, 在每个子场中的第一步完成时的亮度权重的比率分配剩余时间。

    Driving plasma display panel without visible flickering
    10.
    发明授权
    Driving plasma display panel without visible flickering 失效
    驱动等离子体显示面板,无可见闪烁

    公开(公告)号:US06559814B1

    公开(公告)日:2003-05-06

    申请号:US09348162

    申请日:1999-07-07

    IPC分类号: G09G328

    摘要: A method of displaying display data on a plasma display panel which displays odd-number lines in a plurality of sub-fields and even-number lines in a plurality of sub-fields includes the steps of checking whether the display data is computer-related data or video data. The method further includes the steps of displaying odd-number lines in a predetermined number of sub-fields during a given vertical scan cycle and even-number lines in the predetermined number of sub-fields during another vertical scan cycle if the display data is video data, and displaying odd-number lines in half the predetermined number of sub-fields and even-number lines in the remaining half of the predetermined number of sub-fields in each vertical scan cycle if the display data is computer-related data.

    摘要翻译: 在多个子场中的多个子场和偶数行显示奇数行的等离子体显示面板上显示显示数据的方法包括以下步骤:检查显示数据是否是计算机相关数据 或视频数据。 该方法还包括以下步骤:如果显示数据是视频,则在给定的垂直扫描周期期间在预定数量的子场中显示奇数行,并且在另一个垂直扫描周期期间在预定数量的子场中显示偶数行 数据,并且如果显示数据是计算机相关数据,则在每个垂直扫描周期中的预定数量的子场的剩余一半中的预定数量的子场和偶数行的一半中显示奇数行。