公开(公告)号：US06376994B1

公开(公告)日：2002-04-23

申请号：US09478526

申请日：2000-01-06

Applicant: Hideo Ochi ,  Yoshiyuki Okuda ,  Masami Tsuchida

Inventor： Hideo Ochi ,  Yoshiyuki Okuda ,  Masami Tsuchida

IPC: G09G330

CPC classification number: G09G3/3216 ,  G09G3/2014 ,  G09G3/3266 ,  G09G2310/0248 ,  G09G2310/0256 ,  G09G2320/041

Abstract: An EL device driving apparatus enables substantial light emission luminance characteristics to be kept constant even if an environmental temperature fluctuates. The apparatus includes a driving unit for selectively supplying a light emission driving energy to EL devices, a temperature sensing unit for sensing an operation temperature, and a temperature compensating unit for changing the light emission driving energy in accordance with the operation temperature.

Abstract translation: 即使环境温度波动，EL器件驱动装置也能够保持恒定的发光亮度特性。 该装置包括用于向EL器件选择性地提供发光驱动能量的驱动单元，用于感测操作温度的温度感测单元和用于根据操作温度改变发光驱动能量的温度补偿单元。

公开(公告)号：US07274363B2

公开(公告)日：2007-09-25

申请号：US10322776

申请日：2002-12-19

Applicant: Shinichi Ishizuka ,  Masami Tsuchida ,  Hideo Ochi ,  Tsuyoshi Sakamoto

Inventor： Shinichi Ishizuka ,  Masami Tsuchida ,  Hideo Ochi ,  Tsuyoshi Sakamoto

IPC: G09G5/00

CPC classification number: G09G3/3233 ,  G09G3/2011 ,  G09G3/2022 ,  G09G2310/0221 ,  G09G2310/04 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/0693

Abstract: A display panel driving device and driving method for providing high quality images without irregular luminance even after long-time use. The value of the light-emission drive current flowing when causing each light-emission elements bearing each pixel to independently emit light in succession is measured, then the luminance is corrected for each input pixel data based on the above light-emission drive current values, associated with the pixels corresponding to the input pixel data. According to another aspect, the voltage value of the drive voltage is adjusted in such a manner that one value among each measured light-emission drive current value becomes equal to a predetermined reference current value. According to a further aspect, the current value is measured while an off-set current component corresponding to a leak current of the display panel is added to the current outputted from the drive voltage generator circuit and the resultant current is supplied to each of the pixel portions.

Abstract translation: 一种显示面板驱动装置和驱动方法，即使在长时间使用之后也能提供高质量的图像而没有不规则的亮度。 测量使带有各像素的各发光元件依次独立地发光的流动的发光驱动电流的值，然后基于上述发光驱动电流值对每个输入像素数据校正亮度， 与对应于输入像素数据的像素相关联。 根据另一方面，调节驱动电压的电压值，使得每个测量的发光驱动电流值中的一个值变得等于预定的参考电流值。 根据另一方面，测量电流值，同时将与显示面板的泄漏电流相对应的偏移电流分量加到从驱动电压发生器电路输出的电流中，并将所得到的电流提供给每个像素 部分。

公开(公告)号：US06756951B1

公开(公告)日：2004-06-29

申请号：US09615592

申请日：2000-07-13

Applicant: Shinichi Ishizuka ,  Masami Tsuchida ,  Tsuyoshi Sakamoto ,  Hideo Ochi

Inventor： Shinichi Ishizuka ,  Masami Tsuchida ,  Tsuyoshi Sakamoto ,  Hideo Ochi

IPC: G09G320

CPC classification number: G09G3/3216 ,  G09G3/3283 ,  G09G2310/0221 ,  G09G2310/04 ,  G09G2320/0233 ,  G09G2330/02 ,  G09G2330/022

Abstract: A display apparatus and a driving circuit of a display panel, in which even when an anode line driving circuit is made of a plurality of IC chips, light emission luminance values on the display panel can be uniformed. The display apparatus is made of a plurality of driving circuits having a plurality of light-emission drive current sources each for generating a light-emission drive current to allow a light emitting element of the display panel to emit the light and supplying the light-emission drive current to first electrode lines of the display panel. At least one of the driving circuits is provided with a drive current control circuit for adjusting a current amount of the light-emission drive current to be generated by the driving circuit on the basis of the light-emission drive current generated from the other driving circuit.

Abstract translation: 显示面板的显示装置和驱动电路，即使阳极线驱动电路由多个IC芯片构成，显示面板上的发光亮度值也可以均匀化。 显示装置由具有多个发光驱动电流源的多个驱动电路构成，每个发光驱动电流源用于产生发光驱动电流，以允许显示面板的发光元件发光并提供发光 驱动电流到显示面板的第一电极线。 至少一个驱动电路设置有驱动电流控制电路，用于根据从另一个驱动电路产生的发光驱动电流来调节由驱动电路产生的发光驱动电流的电流量 。

公开(公告)号：US06429837B1

公开(公告)日：2002-08-06

申请号：US09289656

申请日：1999-04-12

Applicant: Shinichi Ishizuka ,  Yoshinori Fukuda ,  Satoshi Miyaguchi ,  Hideo Ochi ,  Taizo Ishida ,  Masami Tsuchida

Inventor： Shinichi Ishizuka ,  Yoshinori Fukuda ,  Satoshi Miyaguchi ,  Hideo Ochi ,  Taizo Ishida ,  Masami Tsuchida

IPC: G09G322

CPC classification number: G09G3/32 ,  H01L27/3281 ,  H01L51/52 ,  H01L2251/568

Abstract: A method is provided for driving a luminescent display which includes a plurality of luminescent units adapted to be selected for light emission, so as to display an image. This method is characterized in that during a predetermined period, a reverse voltage having a direction opposite to that of a voltage to be applied for light emission of a luminescent unit, is applied to each luminescent unit.

Abstract translation: 提供一种用于驱动发光显示器的方法，其包括适于被选择用于发光的多个发光单元，以便显示图像。 该方法的特征在于，在预定时段内，向每个发光单元施加具有与用于发光单元的发光的电压的方向相反的方向的反向电压。

公开(公告)号：US07170476B2

公开(公告)日：2007-01-30

申请号：US10657697

申请日：2003-09-08

Applicant: Tsuyoshi Sakamoto ,  Hideo Ochi ,  Masami Tsuchida

Inventor： Tsuyoshi Sakamoto ,  Hideo Ochi ,  Masami Tsuchida

IPC: G09G3/30

CPC classification number: G09G3/3258 ,  G09G2300/0857 ,  G09G2300/0885 ,  H01L27/3262

Abstract: A method for producing a fixed display panel using a matrix display panel. In the method, the holding state of memory elements of a plurality of pixels of the matrix display panel is changed to one of two values, in accordance with the predetermined fixed pattern, m driving lines are jointly connected as a first electrode and n scanning lines are jointly connected as a second electrode.

Abstract translation: 一种使用矩阵显示面板制造固定显示面板的方法。 在该方法中，矩阵显示面板的多个像素的存储元件的保持状态根据预定的固定图案而变为两个值中的一个，m个驱动线共同连接为第一电极，n个扫描线 共同连接为第二电极。

公开(公告)号：US07215307B2

公开(公告)日：2007-05-08

申请号：US10412677

申请日：2003-04-14

Applicant: Hideo Ochi ,  Masami Tsuchida ,  Shinichi Ishizuka ,  Tsuyoshi Sakamoto

Inventor： Hideo Ochi ,  Masami Tsuchida ,  Shinichi Ishizuka ,  Tsuyoshi Sakamoto

IPC: G09G3/30

CPC classification number: G09G3/3216 ,  G09G3/20 ,  G09G3/3283 ,  G09G2310/0256 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2330/021

Abstract: A drive unit which can prevent the decrease of the luminance of a self-luminous device due to degradation or a change is electric characteristic thereof. The drive unit has a semiconductor device having an electric characteristic almost the same as the that of the self-luminous device, and drives the semiconductor device in accordance with the frequency of light emission of the self-luminous device. The device generates a characteristic change detection signal indicating the degree of a change in an electric characteristic of the semiconductor device, and supplies the self-luminous device with a drive signal having a current level or a voltage level based on the characteristic change detection signal.

Abstract translation: 可以防止由于劣化或变化引起的自发光器件的亮度降低的驱动单元的电气特性。 驱动单元具有与自发光器件几乎相同的电特性的半导体器件，并且根据自发光器件的发光频率驱动半导体器件。 该装置产生表示半导体器件的电特性变化程度的特性变化检测信号，并且基于特性变化检测信号向自发光器件提供具有电流电平或电压电平的驱动信号。

公开(公告)号：US06806852B2

公开(公告)日：2004-10-19

申请号：US09969735

申请日：2001-10-04

Applicant: Shinichi Ishizuka ,  Masami Tsuchida ,  Hideo Ochi

Inventor： Shinichi Ishizuka ,  Masami Tsuchida ,  Hideo Ochi

IPC: G09G332

CPC classification number: G09G3/3208 ,  G09G3/20 ,  G09G5/10 ,  G09G2320/043 ,  G09G2330/021 ,  G09G2360/16 ,  G09G2360/18

Abstract: Improvement for extending the service life of a self-emitting panel and for reducing the power consumption thereof. The self-emitting panel is driven based on intensity-reduced data. The intensity-reduced data is obtained by applying intensity reduction processing on each frame of the image frame data to be displayed.

Abstract translation: 改进以延长自发光面板的使用寿命并降低其功耗。 基于强度降低的数据驱动自发光面板。 通过对要显示的图像帧数据的每个帧应用强度降低处理来获得强度减小的数据。

公开(公告)号：US6020865A

公开(公告)日：2000-02-01

申请号：US725037

申请日：1996-10-02

Applicant: Yoshiyuki Okuda ,  Hideo Ochi ,  Shinichi Ishizuka

Inventor： Yoshiyuki Okuda ,  Hideo Ochi ,  Shinichi Ishizuka

IPC: H05B37/02 ,  G09G3/14 ,  G09G3/32

CPC classification number: G09G3/2081 ,  G09G3/32 ,  G09G2300/06 ,  G09G2310/0272 ,  G09G2310/0275

Abstract: Driving method and apparatus for a light emitting device have a simple configuration and are able to change the luminance even when a light emitting device which operates at a low speed is employed. The apparatus includes power supplies numbering n each generating different output, switches numbering n to turn the outputs of the power supplies on/off and an adder to add the outputs from the switches and drive the light emitting device. The control information to control the n switches for each divided section obtained by dividing a lighting period by k is stored in the control information storing part and the control information for each divided section is read out to turn on/off the n switches.

Abstract translation: 用于发光器件的驱动方法和装置具有简单的结构，并且即使采用以低速工作的发光器件也能够改变亮度。 该装置包括编号为n的电源，每个产生不同的输出，编号为n的开关，用于打开/关闭电源的输出和加法器，以加上来自开关的输出并驱动发光装置。 将控制信息存储在控制信息存储部分中，并且读出每个分割部分的控制信息以将n个开关打开/关闭。

公开(公告)号：US5923309A

公开(公告)日：1999-07-13

申请号：US853890

申请日：1997-05-09

Applicant: Shinichi Ishizuka ,  Yoshiyuki Okuda ,  Hiroshi Ohata ,  Hideo Ochi

Inventor： Shinichi Ishizuka ,  Yoshiyuki Okuda ,  Hiroshi Ohata ,  Hideo Ochi

IPC: G09G3/30 ,  G09G3/20 ,  G09G3/32 ,  H01L51/50

CPC classification number: G09G3/2011 ,  G09G3/14 ,  G09G3/3216 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2310/0256 ,  G09G2310/027 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/043

Abstract: A display device having light-emitting elements capable of maintaining high display quality without variation in emission comprises a display part having a plurality of light-emitting elements for emitting light at emission intensity in accordance with the amount of an input current, a reference table for storing control information associated with the amount of a driving current for each of the light-emitting elements, a driver for driving each of the light-emittlng elements of the display part by means of an electrical current, and a controller for controlling the amount of the driving current from the driver, the controller identifying control information associated with light-emitting elements to be driven for emiseion from the reference table and varies the amount of the driving current from the driver.

Abstract translation: 具有能够在不发生变化的情况下能够保持高显示质量的发光元件的显示装置具有：具有多个发光元件的显示部，该多个发光元件用于按照输入电流量发光的发光强度， 存储与每个发光元件的驱动电流量相关联的控制信息，用于通过电流驱动显示部分的每个发光元件的驱动器，以及用于控制显示部分的发光量的控制器 来自驾驶员的驱动电流，控制器识别与要从基准表发射的发光元件相关联的控制信息，并且改变来自驾驶员的驱动电流的量。

公开(公告)号：US20110199356A1

公开(公告)日：2011-08-18

申请号：US12742547

申请日：2007-06-12

Applicant: Hideo Ochi ,  Satoru Ohta ,  Akira Hirasawa ,  Kenji Nakamura ,  Takahito Oyamada

Inventor： Hideo Ochi ,  Satoru Ohta ,  Akira Hirasawa ,  Kenji Nakamura ,  Takahito Oyamada

IPC: G06F3/038

CPC classification number: G09G3/3233 ,  G09G2300/088 ,  G09G2310/0251

Abstract: A pixel circuit includes a first power line that supplies a first power, a single control line, an emission control variable resistance element having one end connected to the first power line and the other end connected to the control line, a second power line that supplies a second power, a light-emitting element that has one end connected to the control line and the other end connected to the second power line and emits light in accordance with data written to the emission control variable resistance element, and a parallel connection variable resistance element having one end connected to the control line and the other end connected to the second power line so that it is parallel with the light-emitting element.

Abstract translation: 像素电路包括提供第一功率的第一电力线，单个控制线，一端连接到第一电力线的发射控制可变电阻元件和连接到控制线的另一端;第二电力线， 第二功率，发光元件，其一端连接到控制线，另一端连接到第二电源线，并且根据写入发射控制可变电阻元件的数据发光;以及并联连接可变电阻 元件，其一端连接到控制线，另一端连接到第二电源线，使得其与发光元件平行。