公开(公告)号：US09078303B2

公开(公告)日：2015-07-07

申请号：US13729169

申请日：2012-12-28

Applicant: AU OPTRONICS CORP.

Inventor： Chun-Hsien Lin ,  Chin-Shun Chen

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/0815 ,  H05B33/0824 ,  H05B37/02 ,  Y02B20/346

Abstract: A LED string driving circuit includes a plurality of LED strings; a power supply unit configured to receive an input voltage and accordingly output a driving voltage to the LED strings; a comparison unit configured to receive the input voltage and output a first control signal according to a relationship between the input voltage and a predetermined voltage; a control unit configured to receive the first control signal and generate a second control signal according to a potential level of the first control signal; and a switch unit including a plurality of switch elements, and each are controlled by the second control signal and thereby forming various electrical loops and thereby configuring the LED strings corporately to form either a parallel loop or a series loop via the switch unit with respective electrical loops. A LED string driving method is also provided.

Abstract translation: LED串驱动电路包括多个LED串; 电源单元，被配置为接收输入电压，并且相应地向LED串输出驱动电压; 比较单元，被配置为接收输入电压并根据输入电压和预定电压之间的关系输出第一控制信号; 控制单元，被配置为接收第一控制信号并根据第一控制信号的电位电平产生第二控制信号; 以及包括多个开关元件的开关单元，并且每个开关单元由第二控制信号控制，从而形成各种电路，从而组合LED串以经由开关单元形成并联回路或串联回路，各自的电气 循环。 还提供了LED串驱动方法。

公开(公告)号：US09185763B2

公开(公告)日：2015-11-10

申请号：US14710958

申请日：2015-05-13

Applicant: AU OPTRONICS CORP.

Inventor： Chun-Hsien Lin ,  Chin-Shun Chen

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/0815 ,  H05B33/0824 ,  H05B37/02 ,  Y02B20/346

Abstract: A light emitting diode (LED) string driving method applicable to drive a driving circuit is provided. The driving circuit comprises a plurality of LED strings, a power supply unit electrically coupled to the LED strings, a comparison unit configured to receive an input voltage, a control unit electrically coupled to the comparison unit, and a switch unit electrically coupled to the control unit, the power supply unit and the LED strings. The driving method comprises configuring the comparison unit to output a first control signal to the control unit through comparing the input voltage to the predetermined voltage, configuring the control unit to output a second control signal to the switch unit according to the first control signal, and configuring the switch unit to form various electrical loops and configuring the LED strings to corporately form either a parallel loop or a series loop via respective electrical loops.

Abstract translation: 提供了适用于驱动驱动电路的发光二极管（LED）串驱动方法。 所述驱动电路包括多个LED串，电耦合到所述LED串的电源单元，被配置为接收输入电压的比较单元，电耦合到所述比较单元的控制单元，以及电耦合到所述控制器的开关单元 单元，电源单元和LED串。 驱动方法包括：配置比较单元，通过将输入电压与预定电压进行比较，将控制单元输出到控制单元;配置控制单元，根据第一控制信号向开关单元输出第二控制信号;以及 配置开关单元以形成各种电气回路并且配置LED串以通过相应的电气回路公司形成并联回路或串联回路。

公开(公告)号：US09129571B2

公开(公告)日：2015-09-08

申请号：US13747562

申请日：2013-01-23

Applicant: AU OPTRONICS CORP.

Inventor： Kuo-Hsiang Chien ,  Kai-Yuan Siao ,  Chun-Hsien Lin ,  Tien-Chin Huang

IPC: G09G3/36

CPC classification number: G09G3/3611 ,  G09G2310/021 ,  G09G2310/0218 ,  G09G2310/0286

Abstract: A display apparatus and an operation method thereof are provided. The display apparatus includes a display panel. The display panel includes a plurality of data lines, a plurality of scan lines and a plurality of pixels. The pixels are arranged in a matrix manner, and each pixel is electrically connected to one of the data lines and one of the scan lines. The operation method includes steps of: dividing the scan lines into N scan line groups, wherein N is an integer from 2 to the number of the scan lines; and in N frame periods sequentially driving the N scan line groups of scan line respectively and thereby sequentially updating display data of the pixels electrically connected to the N scan line groups of the scan line respectively.

Abstract translation: 提供了显示装置及其操作方法。 显示装置包括显示面板。 显示面板包括多条数据线，多条扫描线和多个像素。 像素以矩阵方式布置，并且每个像素电连接到数据线之一和扫描线之一。 该操作方法包括以下步骤：将扫描线划分成N个扫描线组，其中N是从2到扫描线数的整数; 并且在N个帧周期中分别顺序地驱动扫描线的N个扫描线组，从而分别依次更新与扫描线的N个扫描线组电连接的像素的显示数据。