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    • 31. 发明申请
    • SOURCE DRIVER FOR DISPLAY AND DRIVING METHOD THEREOF
    • 来源驱动程序用于显示和驱动方法
    • US20070236420A1
    • 2007-10-11
    • US11627015
    • 2007-01-25
    • Jiunn-Yau HuangCheng-Chi Yen
    • Jiunn-Yau HuangCheng-Chi Yen
    • G09G3/30
    • G09G3/3283G09G3/3216G09G2320/0233
    • A source driver comprises a plurality of current-driving units, each of which includes a digital to analog converter (DAC), an operational amplifier, a first and second current source, a resistor, and a current mirror unit. The DAC converts programming data to an analog signal. The operational amplifier receives and amplifies the analog signal output from the DAC. The first current source generates a first current according to the amplified analog signal. The resistor is used to supply a feedback path from a reference voltage to the operational amplifier. The second current source outputs a second current according to a control signal generated by the display data. The current mirror unit mirrors a data current according to the sum of the first and second current to drive an organic light-emitting diode (OLED).
    • 源极驱动器包括多个电流驱动单元,每个电流驱动单元包括数模转换器(DAC),运算放大器,第一和第二电流源,电阻器和电流镜单元。 DAC将编程数据转换为模拟信号。 运算放大器接收并放大从DAC输出的模拟信号。 第一电流源根据放大的模拟信号产生第一电流。 电阻用于从参考电压向运算放大器提供反馈路径。 第二电流源根据由显示数据产生的控制信号输出第二电流。 电流镜单元根据第一和第二电流的和来反射数据电流以驱动有机发光二极管(OLED)。
    • 32. 发明申请
    • Driving system of light emitting diode
    • 发光二极管驱动系统
    • US20070159434A1
    • 2007-07-12
    • US11651539
    • 2007-01-10
    • Cheng-Chi YenYung-Yuan HoYen-Chen Chen
    • Cheng-Chi YenYung-Yuan HoYen-Chen Chen
    • G09G3/36
    • H05B33/086H05B33/0818Y02B20/347
    • The invention relates to an LED current driving system. The LED current driving system comprises an LED driver. The LED driver comprises at least one LED driving unit for outputting a driving current to an LED. Each LED driving unit comprises a plurality of current sources and a plurality of switches. The switches are connected to the corresponding current source. Each switch controls the ON/OFF state of the corresponding current source in accordance with the duty cycle control signal and a current control signal. Therefore, by integrating the LED driver on the LCOS panel, the LED current driving system of the invention can decrease the pin number of the LCOS chip, the overall area and the system cost so as to improve the yield of the LED current driving system. Besides, the LED current driving system utilizes the current sources to form the driving current to stably and precisely control the driving current flowing through the corresponding LED so that the color quality of the image can be improved.
    • 本发明涉及一种LED电流驱动系统。 LED电流驱动系统包括LED驱动器。 LED驱动器包括用于向LED输出驱动电流的至少一个LED驱动单元。 每个LED驱动单元包括多个电流源和多个开关。 开关连接到相应的电流源。 每个开关根据占空比控制信号和电流控制信号控制相应电流源的ON / OFF状态。 因此,通过将LED驱动器集成在LCOS面板上,本发明的LED电流驱动系统可以降低LCOS芯片的引脚数,整体面积和系统成本,从而提高LED电流驱动系统的产量。 此外,LED电流驱动系统利用电流源形成驱动电流,以稳定且精确地控制流过对应的LED的驱动电流,从而可以提高图像的色彩质量。
    • 33. 发明申请
    • TEST METHOD OF LIQUID CRYSTAL DISPLAY PANEL
    • 液晶显示面板测试方法
    • US20120062263A1
    • 2012-03-15
    • US12878241
    • 2010-09-09
    • Wei-Ting LanCheng-Chi YenJu-Tien Cheng
    • Wei-Ting LanCheng-Chi YenJu-Tien Cheng
    • G01R31/26
    • G09G3/006G09G3/3648G09G2300/0809
    • A test method of a liquid crystal display panel is provided. The liquid crystal display panel includes a plurality of pixels and a testing pad. The pixels are disposed at intersections between a first, a second, and a third data lines and a plurality of scan lines. In the test method, each of the scan lines is driven to connect liquid crystal capacitors of the pixels to the first, the second, and the third data lines. A first and a second test voltages are respectively supplied to the first and the second data lines, wherein the first test voltage is not equal to the second test voltage. The first data line is floated. The floated first data line is measured through the testing pad to determine whether the liquid crystal capacitors of the pixels electrically connected to the first and the second data lines are electrically connected with each other.
    • 提供了一种液晶显示面板的测试方法。 液晶显示面板包括多个像素和测试垫。 像素设置在第一,第二和第三数据线与多条扫描线之间的交点处。 在测试方法中,驱动每条扫描线将像素的液晶电容器连接到第一,第二和第三数据线。 第一和第二测试电压分别提供给第一和第二数据线,其中第一测试电压不等于第二测试电压。 第一条数据线是浮动的。 通过测试垫测量漂浮的第一数据线,以确定电连接到第一和第二数据线的像素的液晶电容器是否彼此电连接。
    • 34. 发明授权
    • Pixel device having a capacitor comprising metal layers and a capacitor having poly-silicon layers
    • 具有包括金属层的电容器和具有多晶硅层的电容器的像素装置
    • US07796201B2
    • 2010-09-14
    • US12049597
    • 2008-03-17
    • Cheng-Chi Yen
    • Cheng-Chi Yen
    • G02F1/1343
    • G02F1/136213G09G2300/0426G09G2300/0439
    • A pixel device capable of composing a panel is provided herein. The pixel device includes a first switch, a first capacitor, and a second capacitor. The first switch delivers a pixel signal to a pixel electrode according to a control signal. The first capacitor has a first part of a first metal layer, a second metal layer, and a first dielectric coupled between the first part of the first metal layer and the second metal layer. The second capacitor has a first poly-silicon layer, an electrode layer, and a second dielectric coupled between the first poly-silicon layer and the electrode layer. The first and the second capacitors are parallel connected without increasing the area of the pixel and serve as a storage capacitor. Therefore, the pixel device can obtain more overall storage capacitance.
    • 本文提供了能够构成面板的像素装置。 像素装置包括第一开关,第一电容器和第二电容器。 第一开关根据控制信号向像素电极传送像素信号。 第一电容器具有第一金属层的第一部分,第二金属层和耦合在第一金属层的第一部分和第二金属层之间的第一电介质。 第二电容器具有耦合在第一多晶硅层和电极层之间的第一多晶硅层,电极层和第二介质。 第一和第二电容器并联连接,而不增加像素的面积并用作存储电容器。 因此,像素装置可以获得更多的整体存储电容。
    • 35. 发明授权
    • Driving system of light emitting diode
    • 发光二极管驱动系统
    • US07724220B2
    • 2010-05-25
    • US11651539
    • 2007-01-10
    • Cheng-Chi YenYung-Yuan HoYen-Chen Chen
    • Cheng-Chi YenYung-Yuan HoYen-Chen Chen
    • G09G3/32
    • H05B33/086H05B33/0818Y02B20/347
    • The invention relates to an LED current driving system. The LED current driving system comprises an LED driver. The LED driver comprises at least one LED driving unit for outputting a driving current to an LED. Each LED driving unit comprises a plurality of current sources and a plurality of switches. The switches are connected to the corresponding current source. Each switch controls the ON/OFF state of the corresponding current source in accordance with the duty cycle control signal and a current control signal. Therefore, by integrating the LED driver on the LCOS panel, the LED current driving system of the invention can decrease the pin number of the LCOS chip, the overall area and the system cost so as to improve the yield of the LED current driving system. Besides, the LED current driving system utilizes the current sources to form the driving current to stably and precisely control the driving current flowing through the corresponding LED so that the color quality of the image can be improved.
    • 本发明涉及一种LED电流驱动系统。 LED电流驱动系统包括LED驱动器。 LED驱动器包括用于向LED输出驱动电流的至少一个LED驱动单元。 每个LED驱动单元包括多个电流源和多个开关。 开关连接到相应的电流源。 每个开关根据占空比控制信号和电流控制信号控制相应电流源的ON / OFF状态。 因此,通过将LED驱动器集成在LCOS面板上,本发明的LED电流驱动系统可以降低LCOS芯片的引脚数,整体面积和系统成本,从而提高LED电流驱动系统的产量。 此外,LED电流驱动系统利用电流源形成驱动电流,以稳定且精确地控制流过对应的LED的驱动电流,从而可以提高图像的色彩质量。
    • 38. 发明申请
    • Amoled panel
    • Amoled面板
    • US20070279339A1
    • 2007-12-06
    • US11802143
    • 2007-05-21
    • Jiunn-Yau HuangCheng-Chi Yen
    • Jiunn-Yau HuangCheng-Chi Yen
    • G09G3/30
    • G09G3/3283G09G3/3241G09G3/3291G09G2310/027
    • An AMOLED panel includes an AMOLED pixel unit, a scan driving unit and a data driving unit. The scan driving unit is coupled to the AMOLED pixel unit. The data driving unit is coupled to the AMOLED pixel unit and a voltage source and includes a switch and a DC-to-AC converter. The switch has a first terminal coupled to the AMOLED pixel unit and a second terminal coupled to the voltage source. The DC-to-AC converter has n+1 bytes, wherein n is a positive integer. The DC-to-AC converter is coupled to a control terminal of the switch and outputs a variable voltage to turn on the switch to make the switch generate a data current. The DC-to-AC converter changes a magnitude of the variable voltage to control a magnitude of the data current.
    • AMOLED面板包括AMOLED像素单元,扫描驱动单元和数据驱动单元。 扫描驱动单元耦合到AMOLED像素单元。 数据驱动单元耦合到AMOLED像素单元和电压源,并且包括开关和DC-AC转换器。 开关具有耦合到AMOLED像素单元的第一端子和耦合到电压源的第二端子。 DC-AC转换器具有n + 1个字节,其中n是正整数。 DC-AC转换器耦合到开关的控制端子,并输出可变电压以接通开关以使开关产生数据电流。 DC-AC转换器改变可变电压的大小以控制数据电流的大小。