公开(公告)号：WO2009038414A1

公开(公告)日：2009-03-26

申请号：PCT/KR2008/005601

申请日：2008-09-22

Applicant: ORION PDP CO., LTD. ,  JO, Hee Duk ,  KIM, Yong Duk

Inventor： JO, Hee Duk ,  KIM, Yong Duk

IPC: G09G3/28

CPC classification number: G09G3/291 ,  G09G2320/0626 ,  G09G2320/0673 ,  G09G2360/16

Abstract: Disclosed is a method for reverse-gamma correction of a plasma display panel, which can improve image quality in a low gray scale region by calculating an output of gamma depending on an APL. The method includes selecting a plurality of APL points in an APL curve; calculating the number of sustain pulses for each subfield based on an APL point, calculating a luminance value at each of the APL points based on an SFM level; calculating an output luminance value at each of the APL points based on an input gray scale to which gamma characteristics are applied; and calculating an output of gamma at each of the APL points based on an input gray scale.

Abstract translation: 公开了一种用于等离子体显示面板的反伽马校正的方法，其可以通过根据APL计算伽马的输出来提高低灰度区域中的图像质量。 该方法包括在APL曲线中选择多个APL点; 基于APL点计算每个子场的维持脉冲数，基于SFM电平计算每个APL点处的亮度值; 基于施加了伽马特性的输入灰度级来计算每个APL点处的输出亮度值; 以及基于输入的灰度级来计算每个APL点处的伽马的输出。

公开(公告)号：WO2009038419A1

公开(公告)日：2009-03-26

申请号：PCT/KR2008/005609

申请日：2008-09-22

Applicant: ORION PDP CO., LTD ,  KIM, Yong Duk ,  LEE, Young Jun ,  CHOI, Su Sam

Inventor： KIM, Yong Duk ,  LEE, Young Jun ,  CHOI, Su Sam

IPC: G09G3/28

CPC classification number: G09G3/2965 ,  G09G3/294 ,  G09G2330/021 ,  G09G2330/06

Abstract: An energy recovery circuit for a plasma display panel (PDP) according to the present invention includes an energy recovery unit recovering and storing energy from the PDP; and a switching stabilizing unit electrically connected to the energy recovery unit to stabilize switching of a sustain discharge pulse applied to the PDP. The switching stabilization unit may include one diode, two switches and one capacitor for energy recovery, or include two switches and an external input voltage source that is an external voltage supply. According to the present invention, the difference of voltages applied to both drain and source terminals of a switch SW2 for applying a sustain discharge voltage Vsus is minimized at the time when the switch SW2 is switched, so that switching can be stabilized by preventing hard switching from being generated when the sustain discharge voltage is applied to a panel. Further, switching and electro-magnetic interference (EMI) noises of the circuit, generated due to the hard switching can be decreased, and therefore, driving reliability of the circuit can be improved.

Abstract translation: 根据本发明的用于等离子体显示面板（PDP）的能量回收电路包括能量回收单元，其从PDP中回收和存储能量; 以及电连接到所述能量回收单元以稳定施加到所述PDP的维持放电脉冲的切换的开关稳定单元。 开关稳定单元可以包括一个二极管，两个开关和一个用于能量回收的电容器，或者包括两个开关和作为外部电压源的外部输入电压源。 根据本发明，在开关SW2切换时，施加维持放电电压Vsus的开关SW2的施加到漏极和源极端子的电压差最小化，从而可以通过防止硬切换来使开关稳定 当维持放电电压施加到面板时被产生。 此外，可以减少由于硬切换而产生的电路的开关和电磁干扰（EMI）噪声，因此可以提高电路的驱动可靠性。

公开(公告)号：WO2009038389A1

公开(公告)日：2009-03-26

申请号：PCT/KR2008/005560

申请日：2008-09-19

Applicant: ORION PDP CO., LTD ,  KIM, Yong Duk ,  LEE, Young Jun ,  CHOI, Su Sam

Inventor： KIM, Yong Duk ,  LEE, Young Jun ,  CHOI, Su Sam

IPC: G09G3/28

CPC classification number: G09G3/294 ,  G09G3/2927 ,  G09G3/2965 ,  G09G2310/066

Abstract: Disclosed are a driving circuit of a plasma display panel (PDP) driving circuit and a driving method thereof, which can simplify the driving circuit and stably secure a sustain discharge waveform. The PDP includes a first electrode applying a ramp-up voltage, a ramp-down voltage, a scan pulse voltage and a sustain discharge voltage; a second electrode applying a ground voltage GND and a level voltage of a second electrode; and a third electrode applying a data voltage for selecting discharge cells in an address period. In the driving method using a driving waveform divided into a reset period, an address period and a sustain period, positive and negative sustain discharge voltages are alternately applied to the first electrode and the ground voltage GND is applied to the second electrode in the sustain period.

Abstract translation: 公开了等离子体显示面板（PDP）驱动电路的驱动电路及其驱动方法，其可以简化驱动电路并稳定地确保维持放电波形。 PDP包括施加斜升电压，斜降电压，扫描脉冲电压和维持放电电压的第一电极; 施加接地电压GND的第二电极和第二电极的电平电压; 以及在寻址周期中施加用于选择放电单元的数据电压的第三电极。 在使用划分为复位周期，寻址周期和维持期间的驱动波形的驱动方法中，将正，负维持放电电压交替施加到第一电极，并且在维持周期中向第二电极施加接地电压GND 。

公开(公告)号：WO2009038386A1

公开(公告)日：2009-03-26

申请号：PCT/KR2008/005557

申请日：2008-09-19

Applicant: ORION PDP CO., LTD ,  KIM, Yong Duk ,  LEE, Young Jun ,  CHOI, Su Sam

Inventor： KIM, Yong Duk ,  LEE, Young Jun ,  CHOI, Su Sam

IPC: G09G3/28

CPC classification number: G09G3/2932 ,  G09G3/296 ,  G09G2310/0218 ,  G09G2320/0223

Abstract: There is provided a method of driving a plasma display panel (PDP). It is possible to reduce the influence that the voltage drop caused by the scan electrodes and the sustain electrodes has on address discharge and to prevent displacement current and discharge current from being excessively concentrated during the address discharge so that the stability of a driving circuit is improved and that power consumption is reduced.

Abstract translation: 提供了驱动等离子体显示面板（PDP）的方法。 可以减小由扫描电极和维持电极引起的电压降对寻址放电的影响，并且能够防止位址放电期间的位移电流和放电电流过度集中，从而提高驱动电路的稳定性 并且功耗降低。

公开(公告)号：WO2009045049A1

公开(公告)日：2009-04-09

申请号：PCT/KR2008/005783

申请日：2008-10-01

Applicant: ORION PDP CO., LTD ,  KIM, Yong Duk ,  LEE, Young Jun ,  CHOI, Su Sam

Inventor： KIM, Yong Duk ,  LEE, Young Jun ,  CHOI, Su Sam

IPC: G09G3/28

CPC classification number: G09G3/2965 ,  G09G3/2927 ,  G09G2310/066

Abstract: Disclosed is a driving circuit for a front electrode of a plasma display panel (PDP), which can simplify the configuration of a circuit controlling a ramp output voltage and a square output voltage. The driving circuit for a front electrode of a PDP includes a control signal input unit, a ramp ON signal input unit, a ramp output control circuit, a square ON signal input unit and a ramp-square switching element. The control signal input unit applies a control signal for allowing the ramp-square switching element to be on/off to the ramp ON signal input unit or square ON signal input unit. The ramp ON signal input unit receives the control signal inputted from the control signal input unit and generates a gate voltage waveform for controlling the ramp-square switching element. The ramp output control circuit includes a capacitor and controls the gate voltage waveform applied to the ramp-square switching element by the ramp ON signal input unit by discharging electric charges charged into the capacitor. The square ON signal input unit receives the control signal inputted from the control signal input unit and generates the gate voltage waveform for controlling the ramp-square switching element. A drain terminal of the ramp-square switching element is connected to input terminals of ramp and square voltages, and a source terminal of the ramp-square switching element is connected to output terminals of the ramp and square voltages.

Abstract translation: 公开了用于等离子体显示面板（PDP）的前电极的驱动电路，其可以简化控制斜坡输出电压和平方输出电压的电路的配置。 PDP的前电极的驱动电路包括控制信号输入单元，斜坡ON信号输入单元，斜坡输出控制电路，平方ON信号输入单元和斜坡开关元件。 控制信号输入单元施加用于允许斜坡开关元件对斜坡ON信号输入单元或平方ON信号输入单元进行开/关的控制信号。 斜坡ON信号输入单元接收从控制信号输入单元输入的控制信号，并产生用于控制斜坡开关元件的栅极电压波形。 斜坡输出控制电路包括电容器，并且通过放电充入电容器的电荷来控制通过斜坡ON信号输入单元施加到斜坡开关元件的栅极电压波形。 方波ON信号输入单元接收从控制信号输入单元输入的控制信号，并产生用于控制斜坡开关元件的栅极电压波形。 斜坡开关元件的漏极端子连接到斜坡和方形电压的输入端子，斜坡开关元件的源极端子连接到斜坡和平方电压的输出端子。

公开(公告)号：WO2009038415A1

公开(公告)日：2009-03-26

申请号：PCT/KR2008/005602

申请日：2008-09-22

Applicant: ORION PDP CO., LTD. ,  KIM, Yong Duk ,  LEE, Young Jun ,  CHOI, Su Sam

Inventor： KIM, Yong Duk ,  LEE, Young Jun ,  CHOI, Su Sam

IPC: G09G3/28

CPC classification number: G09G3/2965

Abstract: Disclosed is a driving circuit for a plasma display panel (PDP). According to the present invention, a sustain discharge voltage waveform necessary for driving the PDP can be stably supplied to a Y-electrode while using a small number of switching elements. Since the driving circuit for the PDP can be simplified, manufacturing cost of the driving circuit can be saved, and heat generated from the driving circuit can be reduced.

Abstract translation: 公开了一种用于等离子体显示面板（PDP）的驱动电路。 根据本发明，可以在使用少量的开关元件的同时，将驱动PDP所需的维持放电电压波形稳定地供给到Y电极。 由于能够简化PDP的驱动电路，能够节省驱动电路的制造成本，能够降低从驱动电路产生的热量。