公开(公告)号：US08269694B2

公开(公告)日：2012-09-18

申请号：US12207939

申请日：2008-09-10

Applicant: Yuya Shiozaki ,  Hitoshi Fujimura ,  Kazuo Yahagi ,  Tsutomu Tokunaga

Inventor： Yuya Shiozaki ,  Hitoshi Fujimura ,  Kazuo Yahagi ,  Tsutomu Tokunaga

IPC: G09G3/28

CPC classification number: G09G3/294 ,  G09G3/2022 ,  G09G3/2927 ,  G09G2310/066 ,  G09G2320/0238 ,  G09G2320/0271 ,  G09G2320/048 ,  G09G2360/16

Abstract: A method for driving a plasma display panel (PDP) that can increase dark contrast without causing erroneous discharges is provided. A unit display period is divided into a plurality of subfields. A reset process and a sustain process are performed in one of the subfields. In the reset process, a reset pulse is applied to row electrodes of the PDP to initialize each discharge cell to an emission mode (or non-emission mode). In the sustain process, a sustain discharge is repeatedly generated a number of times, corresponding to the number of times a sustain pulse is to be applied, in those discharge cells that are in the emission mode. In this case, a peak potential of the reset pulse is changed based on the number of those discharge cells that are maintained in the non-emission mode during the unit display period and the number of times the sustain pulse is to be applied in the sustain process in this subfield.

Abstract translation: 提供了一种用于驱动等离子体显示面板（PDP）的方法，其可以增加暗对比度而不引起错误的放电。 单位显示周期被分成多个子场。 在一个子场中执行复位处理和维持处理。 在复位处理中，将复位脉冲施加到PDP的行电极，以将每个放电单元初始化为发射模式（或非发射模式）。 在维持处理中，在发射模式的那些放电单元中，重复产生与施加维持脉冲的次数相对应的次数的维持放电。 在这种情况下，基于在单位显示期间保持在非发光模式的那些放电单元的数量和在维持中施加维持脉冲的次数来改变复位脉冲的峰值电位 这个子领域的过程。

公开(公告)号：US08203507B2

公开(公告)日：2012-06-19

申请号：US12039968

申请日：2008-02-29

Applicant: Shunsuke Itakura ,  Mitsuhiro Ishizuka ,  Kazuo Yahagi ,  Tetsuya Shigeta ,  Hirofumi Honda

Inventor： Shunsuke Itakura ,  Mitsuhiro Ishizuka ,  Kazuo Yahagi ,  Tetsuya Shigeta ,  Hirofumi Honda

IPC: G09G3/28

CPC classification number: G09G3/2935 ,  G09G3/2029 ,  G09G3/2037 ,  G09G3/2803 ,  G09G3/2922 ,  G09G3/2927 ,  G09G3/2932 ,  G09G3/2937 ,  G09G2320/0238 ,  G09G2340/16

Abstract: A drive method of a plasma display panel that can increase the dark contrast, without causing a discharge failure. When a discharge cell that assumes a black display state in a first field from among first and a second fields that are adjacent in time and switches to a display state representing a brightness other than black in the second field is detected as a lighting transition cell, at least one drive of the below-described first and second forced lighting drives is executed. In the first forced lighting drive, the lighting transition cell is forcibly set into the lighting mode only in the address process of a predetermined subfield within the field in the first field. In the second forced lighting drive, an adjacent discharge cell that is adjacent to the lighting transition cell is forcibly set into the lighting mode only in the address process of the predetermined subfield in the second field.

Abstract translation: 一种等离子体显示面板的驱动方法，其可以增加暗对比度，而不会导致放电故障。 当从时间上相邻的第一和第二场中的第一场中呈现黑色显示状态的放电单元被切换到表示第二场中黑色以外的亮度的显示状态时，被检测为点亮过渡单元， 执行下述第一和第二强制照明驱动器的至少一个驱动器。 在第一强制照明驱动中，仅在第一场中的场内的预定子场的地址处理中将照明过渡单元强制地设置为点亮模式。 在第二强制照明驱动中，仅在第二场中的预定子场的地址处理中强制将与照明过渡单元相邻的相邻放电单元强制地设置为点亮模式。

公开(公告)号：US20090219226A1

公开(公告)日：2009-09-03

申请号：US12187995

申请日：2008-08-07

Applicant: Kazuo Yahagi ,  Mitsuhiro Ishizuka ,  Yuya Shiozaki ,  Shunsuke Itakura ,  Kazuhiro Kanai ,  Hajime Homma ,  Yoshichika Sato ,  Hikaru Takahashi

Inventor： Kazuo Yahagi ,  Mitsuhiro Ishizuka ,  Yuya Shiozaki ,  Shunsuke Itakura ,  Kazuhiro Kanai ,  Hajime Homma ,  Yoshichika Sato ,  Hikaru Takahashi

IPC: G09G3/28

CPC classification number: G09G3/2022 ,  G09G3/2927 ,  G09G2310/0218 ,  G09G2320/0238 ,  G09G2320/0247 ,  G09G2320/041 ,  G09G2320/048 ,  G09G2360/145 ,  G09G2360/16 ,  H01J11/12 ,  H01J11/40 ,  H01J11/42

Abstract: It is an object to provide a driving method of a plasma display panel, whereby a dark contrast can be improved while suppressing an erroneous discharge. In a resetting step in a first unit display period, while a first reset pulse having a predetermined peak electric potential is applied to one of first row electrodes of row electrode pairs formed in the PDP, a second reset pulse having a peak electric potential smaller than that of the first reset pulse is applied to the other of the first row electrodes. In the resetting step in a second unit display period subsequent to the first unit display period, a second reset pulse is applied to each of the one and the other of the first row electrodes.

Abstract translation: 本发明的目的是提供一种等离子体显示面板的驱动方法，由此能够在抑制误放电的同时提高暗对比度。 在第一单位显示周期的复位步骤中，当具有预定峰值电位的第一复位脉冲施加到形成在PDP中的行电极对的第一行电极中的一个时，具有峰值电位小于 将第一复位脉冲的电压施加到第一行电极中的另一个。 在第一单位显示周期之后的第二单位显示周期的复位步骤中，对第一行电极中的一个和另一个施加第二复位脉冲。

公开(公告)号：US20050195133A1

公开(公告)日：2005-09-08

申请号：US11072295

申请日：2005-03-07

Applicant: Kazuo Yahagi

Inventor： Kazuo Yahagi

IPC: H04N5/66 ,  G09G3/20 ,  G09G3/28 ,  G09G3/288 ,  G09G3/291 ,  G09G3/293 ,  G09G3/296 ,  G09G3/298

CPC classification number: G09G3/2937 ,  G09G3/2029 ,  G09G3/292 ,  G09G3/298 ,  G09G2320/02 ,  G09G2320/0228 ,  G09G2320/0238 ,  G09G2340/16

Abstract: Only when an input image signal continues to indicate a black display for a predetermined period of time or longer, some pixel cells randomly selected from among all pixel cells on a display screen are forcibly set to a light-emitting mode in an address process of a subfield with a small weighting.

Abstract translation: 只有当输入图像信号在预定时间段或更长时间内继续指示黑色显示时，在显示屏幕上的所有像素单元中随机选择的一些像素单元被强制地设置为发光模式 子场具有小的权重。

公开(公告)号：US20050083256A1

公开(公告)日：2005-04-21

申请号：US10959220

申请日：2004-10-07

Applicant: Kazuo Yahagi ,  Yuya Shiozaki

Inventor： Kazuo Yahagi ,  Yuya Shiozaki

IPC: G09G3/20 ,  G09G3/28 ,  G09G3/288 ,  G09G3/291 ,  G09G3/294 ,  G09G3/298 ,  H01J11/12 ,  H01J11/14 ,  H01J11/22 ,  H01J11/24 ,  H01J11/26 ,  H01J11/32 ,  H01J11/34 ,  H01J11/36 ,  H04N5/66

CPC classification number: G09G3/2059 ,  G09G3/2022 ,  G09G3/2051 ,  G09G3/2927 ,  G09G3/2937 ,  G09G3/2942 ,  G09G3/2986 ,  G09G2320/0228

Abstract: In each of a plurality of sub-fields forming a field, in order to cause continuous luminescence of the pixel, at least one of the sustain pulses to be applied in the later section in a sustain period for which sustain pulses are to be repeatedly applied has a pulse voltage amplitude given greater than a pulse voltage amplitude of the other sustain pulse.

Abstract translation: 在形成场的多个子场的每一个子场中，为了使像素连续发光，将要重复施加维持脉冲的维持周期中的后续部分中施加的维持脉冲中的至少一个 具有给定的脉冲电压幅度大于另一个维持脉冲的脉冲电压幅度。

公开(公告)号：US20050073479A1

公开(公告)日：2005-04-07

申请号：US10953287

申请日：2004-09-30

Applicant: Hikaru Takahashi ,  Hideto Endo ,  Keishi Saito ,  Kazuo Yahagi ,  Yuya Shiozaki ,  Yuichi Sakai ,  Shigeru Iwaoka ,  Nobuhiko Saegusa

Inventor： Hikaru Takahashi ,  Hideto Endo ,  Keishi Saito ,  Kazuo Yahagi ,  Yuya Shiozaki ,  Yuichi Sakai ,  Shigeru Iwaoka ,  Nobuhiko Saegusa

IPC: G09G3/20 ,  G09G3/288 ,  G09G3/291 ,  G09G3/292 ,  G09G3/293 ,  G09G3/294 ,  G09G3/298 ,  H01J11/12 ,  H01J11/20 ,  H01J11/22 ,  H01J11/24 ,  H01J11/26 ,  H01J11/32 ,  H01J11/34 ,  H01J11/36 ,  H01J11/38 ,  H01J11/44 ,  H04N5/66 ,  G09G3/28

CPC classification number: G09G3/2927 ,  G09G3/293 ,  G09G3/2935 ,  G09G3/294 ,  G09G3/2983 ,  G09G2320/0228 ,  H01J11/12 ,  H01J11/36 ,  H01J11/38

Abstract: A display apparatus which sequentially applies a scanning pulse to one row electrode of the row electrode pair while applying a pixel data pulse corresponding to the pixel data to the column electrodes one display line by one display line, simultaneously with the scanning pulse, to selectively produce an address discharge in the second discharge cell in the address period, applies a sustain pulse to the row electrode pairs in the sustain period, and produces a reset discharge in the same discharge current direction as the address discharge between one row electrode of the row electrode pair and the column electrode in the second discharge cell immediately before the address period of at least the first sub-field of the one-field display period, and a method of driving the display panel.

Abstract translation: 一种显示装置，其与行电极对的一个行电极顺序地施加扫描脉冲，同时与扫描脉冲同时地将与像素数据对应的像素数据脉冲施加到列电极一个显示行一行显示行，以选择性地产生 在寻址周期中第二放电单元中的寻址放电在维持周期中对行电极对施加维持脉冲，并且产生与行电极的一个行电极之间的寻址放电相同的放电电流方向的复位放电 以及紧接在一场显示周期的第一子场的寻址周期之前的第二放电单元中的列电极以及驱动显示面板的方法。