公开(公告)号：US20090231237A1

公开(公告)日：2009-09-17

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：US07391392B2

公开(公告)日：2008-06-24

申请号：US11072295

申请日：2005-03-07

Applicant: Kazuo Yahagi

Inventor： Kazuo Yahagi

IPC: G09G3/28

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：US07091668B2

公开(公告)日：2006-08-15

申请号：US10677258

申请日：2003-10-03

Applicant: Kazuo Yahagi ,  Mitsushi Kitagawa ,  Nobuhiko Saegusa ,  Shigeru Iwaoka ,  Tsutomu Tokunaga ,  Ryo Suzue

Inventor： Kazuo Yahagi ,  Mitsushi Kitagawa ,  Nobuhiko Saegusa ,  Shigeru Iwaoka ,  Tsutomu Tokunaga ,  Ryo Suzue

IPC: G09G3/10

CPC classification number: G09G3/2022 ,  G09G3/2925 ,  G09G3/2927 ,  G09G3/293 ,  G09G3/2932 ,  G09G3/2935 ,  G09G3/2937 ,  G09G3/294 ,  G09G3/2983 ,  G09G3/2986 ,  G09G2320/0238 ,  H01J11/12 ,  H01J11/38

Abstract: A display and a driving method of a display panel capable of improving a dark contrast. In driving the display panel having light-emission areas formed at each intersection of a plurality of pairs of row electrodes and a plurality of column electrodes, each of the light-emission areas having a first discharge cell including a portion where the respective row electrodes in pair are opposed to each other with a predetermined discharge gap within a discharge space and a second discharge cell including a portion where a light absorptive layer is provided and one row electrode of the row electrode pair and the other row electrode of the row electrode pair adjacent to this row electrode pair are opposed to each other with a predetermined discharge gap, an address discharge is produced within the second discharge cell, to set the second discharge cell at a light-on state or a light-off state, by applying a pixel data pulse based on an input image signal, to respective column electrodes, while applying a scanning pulse to a row electrode having the longer distance to the first discharge cell, of the respective row electrodes within the second discharge cell. This structure causes the address discharge within the second discharge cell relatively distant from the first discharge cell, so that the amount of a ultraviolet ray by the address discharge flowing into the first discharge cell is reduced, to suppress the deterioration of the dark contrast.

Abstract translation: 能够改善黑暗对比度的显示面板的显示和驱动方法。 在驱动具有形成在多对行电极和多个列电极的每个交叉点处的发光区域的显示面板时，每个发光区域具有第一放电单元，该第一放电单元包括其中各行电极 对在放电空间内具有预定的放电间隙，并且第二放电单元包括设置有光吸收层的部分，行电极对的一个行电极和行电极对的另一个行电极相邻 对于该行电极对以预定的放电间隙彼此相对，在第二放电单元内产生寻址放电，通过施加像素来将第二放电单元设置为点亮状态或点亮状态 基于输入图像信号的数据脉冲施加到相应的列电极，同时向具有与第一di的距离较长的行电极施加扫描脉冲 在第二放电单元内的各行电极的放电单元。 这种结构使第二放电单元内的寻址放电相对远离第一放电单元，从而减少了流入第一放电单元的寻址放电的紫外线的量，以抑制黑暗对比度的恶化。

公开(公告)号：US20050068264A1

公开(公告)日：2005-03-31

申请号：US10947127

申请日：2004-09-23

Applicant: Kazuo Yahagi

Inventor： Kazuo Yahagi

IPC: G09G3/20 ,  G09G3/28 ,  G09G3/288 ,  G09G3/291 ,  G09G3/293 ,  G09G3/294 ,  G09G3/296 ,  G09G3/298 ,  H01J11/12 ,  H01J11/14 ,  H01J11/22 ,  H01J11/24 ,  H01J11/26 ,  H01J11/28 ,  H01J11/32 ,  H01J11/34 ,  H01J11/36

CPC classification number: G09G3/2022 ,  G09G3/2927 ,  G09G3/293 ,  G09G3/2932 ,  G09G3/2935 ,  G09G3/2937 ,  G09G3/294 ,  G09G3/2983 ,  G09G3/2986 ,  G09G2310/0216 ,  G09G2310/0218 ,  G09G2320/0238 ,  H01J11/12 ,  H01J11/24 ,  H01J11/36

Abstract: It is an object to provide a display device capable of simplifying the interconnection between a display panel and a driver for driving the display panel. A plurality of connection terminals for connection to display electrodes arranged at odd-number-th positions of the display panel is provided at one end in the row direction on a front substrate of the display panel. A plurality of connection terminals for connection to display electrodes arranged at even-number-th positions of the display panel is provided at the other end in a row direction on the front substrate. On the front substrate is mounted a driver for applying a drive pulse to the display electrode arranged at odd-number-th positions through the respective connection terminals provided at one end in a row direction on the front substrate. On the front substrate is mounted a driver for applying a drive pulse to the display electrode arranged at even-number-th through the respective connection terminals provided at the other end in a row direction on the front substrate.

Abstract translation: 本发明的目的是提供一种能够简化显示面板和用于驱动显示面板的驱动器之间的互连的显示装置。 在显示面板的前基板上的行方向的一端设置有用于连接到布置在显示面板的奇数位的显示电极的多个连接端子。 在显示面板的第二位置的多个用于连接到显示电极的连接端子被设置在前面基板上的行方向的另一端。 在前基板上安装驱动器，用于通过设置在前方基板上的行方向一端的各个连接端子向布置在奇数位置的显示电极施加驱动脉冲。 在前面基板上安装有驱动器，用于通过设置在前方基板上的行方向的另一端的各个连接端子向布置在第二位置的显示电极施加驱动脉冲。

公开(公告)号：US08421713B2

公开(公告)日：2013-04-16

申请号：US13448819

申请日：2012-04-17

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：US07136034B2

公开(公告)日：2006-11-14

申请号：US10678276

申请日：2003-10-06

Applicant: Tsutomu Tokunaga ,  Nobuhiko Saegusa ,  Kazuo Yahagi ,  Mitsushi Kitagawa ,  Shigeru Iwaoka

Inventor： Tsutomu Tokunaga ,  Nobuhiko Saegusa ,  Kazuo Yahagi ,  Mitsushi Kitagawa ,  Shigeru Iwaoka

IPC: G09G3/28

CPC classification number: G09G3/2022 ,  G09G3/291

Abstract: A display panel includes a plurality of unit light emission areas (light emission elements) arranged in a matrix. Each unit light emission area is defined by a first discharge cell and a second discharge cell. The second discharge cell has a light-absorbing layer. When the display panel is driven to express an image having a plurality of gradation levels, address discharge is selectively caused in the second discharge cells in accordance with an input image signal. Light leaks to the first discharge cell from the second discharge cell upon the address discharge. This light is used to express the gradation of low luminance. Since luminance difference between gradation levels of a low luminance image is reduced, it is possible to display a high quality, low luminance image.

Abstract translation: 显示面板包括以矩阵形式布置的多个单位发光区域（发光元件）。 每个单位发光区域由第一放电单元和第二放电单元限定。 第二放电单元具有光吸收层。 当显示面板被驱动以表现具有多个灰度级的图像时，根据输入图像信号在第二放电单元中选择性地引起寻址放电。 在寻址放电时，光从第二放电单元泄漏到第一放电单元。 该光用于表示低亮度的灰度。 由于降低了低亮度图像的灰度级之间的亮度差，因此可以显示高质量的低亮度图像。

公开(公告)号：US07075504B2

公开(公告)日：2006-07-11

申请号：US10242666

申请日：2002-09-13

Applicant: Tsutomu Tokunaga ,  Nobuhiko Saegusa ,  Kazuo Yahagi ,  Mitsushi Kitagawa ,  Ryo Suzue ,  Eishiro Otani ,  Yoichi Sato

Inventor： Tsutomu Tokunaga ,  Nobuhiko Saegusa ,  Kazuo Yahagi ,  Mitsushi Kitagawa ,  Ryo Suzue ,  Eishiro Otani ,  Yoichi Sato

IPC: G09G3/28

CPC classification number: G09G3/2927 ,  G09G3/2922 ,  G09G3/2925 ,  G09G3/293 ,  G09G3/2932 ,  G09G3/2935 ,  G09G3/2937 ,  G09G3/2983 ,  G09G3/2986 ,  G09G3/299 ,  G09G2320/0228 ,  G09G2320/0238 ,  H01J11/12 ,  H01J11/24 ,  H01J11/36 ,  H01J11/38 ,  H01J11/44 ,  H01J2211/444

Abstract: A plasma display panel capable of improving dark contrast. A unit light emission region is comprised of a display discharge cell in which a discharge is produced between portions of row electrodes X, Y of each row electrode pair (X, Y) opposing each other, and a reset and address discharge cell arranged in parallel with the display discharge cell, in which a discharge is produced between portions of the row electrode Y and a row electrode X of another adjacent row electrode pair (X, Y). The display discharge cell and reset and address discharge cell are communicated with each other. A light absorbing layer is formed in a portion of the reset and address discharge cell opposing the display surface. According to another aspect, the unit light emission region in the display panel comprises a first discharge cell and a second discharge cell comprising a light absorbing layer. A sustain discharge for emitting light for displaying an image is produced in the first discharge cell, while a variety of control discharges causing light emission not associated with a displayed image are produced in the second discharge cell. According to a further aspect, unit light emission regions are formed at intersections of each of a plurality of first row electrodes and second row electrodes alternately formed on the front substrate such that the first row electrode and the second electrode in each pair are arranged in a reverse order to the preceding pair, and each of a plurality of column electrodes.

Abstract translation: 能够改善暗对比度的等离子体显示面板。 单位发光区域由显示放电单元构成，在该显示放电单元中，在彼此相对的各行电极对（X，Y）的行电极X，Y的部分之间产生放电，并且并联设置复位和寻址放电单元 在行电极Y的一部分与另一相邻行电极对（X，Y）的行电极X之间产生放电的显示放电单元。 显示放电单元和复位和寻址放电单元彼此连通。 在复位和寻址放电单元的与显示表面相对的部分中形成光吸收层。 根据另一方面，显示面板中的单位发光区域包括第一放电单元和包括光吸收层的第二放电单元。 在第一放电单元中产生用于发出用于显示图像的光的维持放电，同时在第二放电单元中产生导致与显示图像不相关的发光的各种控制放电。 根据另一方面，单元发光区域形成在交替形成在前基板上的多个第一行电极和第二行电极中的每一个的交叉处，使得每对中的第一行电极和第二电极被布置在 与前一对相反的顺序，以及多个列电极中的每一个。

公开(公告)号：US20090267974A1

公开(公告)日：2009-10-29

申请号：US12193207

申请日：2008-08-18

Applicant: Mitsushi Kitagawa ,  Mitsuhiro Ishizuka ,  Kazuo Yahagi

Inventor： Mitsushi Kitagawa ,  Mitsuhiro Ishizuka ,  Kazuo Yahagi

IPC: G09G5/08 ,  G09G3/28

CPC classification number: G09G3/293 ,  G09G3/2927 ,  G09G2320/0238 ,  G09G2330/022 ,  G09G2360/16

Abstract: A plasma display device and a method for driving a Plasma Display Panel (PDP), which can reduce power consumption without causing display malfunction or reducing image quality, are provided. When the input of an image signal is stopped or when an input image signal is in an entirely-black image state, the application of a drive pulse for driving the PDP is stopped. Here, when the input of the image signal is resumed or when the input image signal switches from the entirely-black image state to a normal image state, the absolute value of a peak potential of the drive pulse or the pulse width thereof is increased to increase the strength of discharge until a predetermined period elapses after the resumption or switching and then the absolute value of a peak potential of the drive pulse or the pulse width is returned to a normal absolute value or a normal pulse width.

Abstract translation: 提供了等离子体显示装置和驱动等离子体显示面板（PDP）的方法，其可以降低功耗而不会导致显示故障或降低图像质量。 当图像信号的输入停止时或当输入图像信号处于全黑图像状态时，停止施加用于驱动PDP的驱动脉冲。 这里，当恢复图像信号的输入时，或者当输入图像信号从全黑图像状态切换到正常图像状态时，驱动脉冲的峰值电位或其脉冲宽度的绝对值增加到 增加放电强度，直到恢复或切换之后经过预定时间，然后将驱动脉冲或脉冲宽度的峰值电位的绝对值恢复到正常绝对值或正常脉冲宽度。

公开(公告)号：US20080074354A1

公开(公告)日：2008-03-27

申请号：US11898269

申请日：2007-09-11

Applicant: Kazuo Yahagi ,  Mitsunori Taguchi ,  Kazuhiro Kanai ,  Yuichi Sakai ,  Mitsushi Kitagawa ,  Yoshichika Sato ,  Takatoshi Shoji ,  Motofumi Ikeda

Inventor： Kazuo Yahagi ,  Mitsunori Taguchi ,  Kazuhiro Kanai ,  Yuichi Sakai ,  Mitsushi Kitagawa ,  Yoshichika Sato ,  Takatoshi Shoji ,  Motofumi Ikeda

IPC: G09G3/28

CPC classification number: G09G3/2965 ,  G09G3/2937 ,  G09G3/294 ,  G09G2310/066 ,  G09G2320/0228 ,  G09G2360/16 ,  H01J2211/40

Abstract: A plasma display apparatus in which in an address period, address discharge is generated in each display cell of a display panel selectively in accordance with pixel data based on a video signal, and in a sustain period, a sustain pulse for sustain discharge is applied between row electrodes constituting the row electrode pairs by a predetermined number of times which is preset for each of the subfields, and a length of a front-edge period of the sustain pulse to be applied is adjusted subfield by subfield in accordance with a load level in each subfield.

Abstract translation: 一种等离子体显示装置，其中在寻址周期中，根据基于视频信号的像素数据选择性地选择性地在显示面板的每个显示单元中产生寻址放电，并且在维持周期中，在维持周期之间， 构成行电极对的行电极预定为每个子场预定的次数，并且将要施加的维持脉冲的前沿周期的长度根据子场按照子场中的负载水平被调整 每个子域。

公开(公告)号：US07176856B2

公开(公告)日：2007-02-13

申请号：US10743867

申请日：2003-12-24

Applicant: Kazuo Yahagi ,  Tsutomu Tokunaga ,  Yuya Shiozaki ,  Shigeru Iwaoka

Inventor： Kazuo Yahagi ,  Tsutomu Tokunaga ,  Yuya Shiozaki ,  Shigeru Iwaoka

IPC: G09G3/28

CPC classification number: G09G3/2022 ,  G09G3/2927 ,  G09G3/2935 ,  G09G3/294 ,  G09G3/2983 ,  G09G3/2986 ,  G09G2320/0228 ,  H01J11/12 ,  H01J11/24 ,  H01J11/38

Abstract: The present invention is a display device and display panel drive method that allow a more rapid select operation to be stably implemented by increasing the discharge probability of selective discharge. The display device comprises an address part that sequentially applies a positive scan pulse to a first row electrode of each of the display panel row electrode pairs in the address cycle while sequentially applying a pixel data pulse corresponding to the pixel data at the same timing as the scan pulse to each of the display panel column electrodes one display line at a time so that the column electrode side constitutes a cathode, such that an address discharge is selectively produced in the second discharge cell; and a sustain part that applies a sustain pulse to each of the row electrodes constituting the row electrode pairs in the sustain cycle, and the sustain part applies the ultimate sustain pulse of the sustain pulses applied in the address cycle to the first row electrode with a negative polarity.

Abstract translation: 本发明是一种显示装置和显示面板驱动方法，其通过增加选择性放电的放电概率来允许更快速的选择操作被稳定地实现。 显示装置包括地址部分，其在地址周期中顺序地将正扫描脉冲施加到每个显示面板行电极对的第一行电极，同时在与该像素数据相同的定时顺序施加与像素数据相对应的像素数据脉冲 扫描脉冲到每个显示面板列电极一次显示行，使得列电极侧构成阴极，使得在第二放电单元中选择性地产生寻址放电; 以及维持部，其在维持周期中对构成行电极对的各行行电极施加维持脉冲，并且维持部将施加在地址周期的维持脉冲的最终维持脉冲施加到第一行电极， 负极性。