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1. 发明申请

US20080303804A1 HYBRID DRIVER FOR LIGHT-EMITTING DIODE DISPLAYS 有权
标题翻译：用于发光二极管显示器的混合驱动器
公开(公告)号：US20080303804A1
公开(公告)日：2008-12-11
申请号：US11759777
申请日：2007-06-07
申请人： John F. L. Schmidt , Kalluri R. Sarma , Jerry A. Roush
发明人： John F. L. Schmidt , Kalluri R. Sarma , Jerry A. Roush
IPC分类号： G09G5/00
CPC分类号： G09G3/3291 , G09G3/325 , G09G3/3283 , G09G2310/0248
摘要： Apparatus, systems, and methods are provided for controlling the luminance of a display. One apparatus includes a pre-charge circuit configured to supply a pre-charge voltage to a column of LED pixels, a programming circuit configured to supply current to the column, and a switch configured to selectively couple the pre-charge circuit or the programming circuit to the column. A system includes an array of LED pixels arranged in a plurality of columns. A plurality of pre-charge circuits, each configured to selectively supply a pre-charge voltage to at least one column of pixels, and a plurality of current sources, each configured to selectively supply current to at least one column of pixels are also included. One method includes determining a pre-charge voltage for each of a plurality of columns based on a target luminance level selected from the plurality of luminance levels and supplying the determined pre-charge voltages to the columns.
摘要翻译：提供了用于控制显示器的亮度的装置，系统和方法。一种装置包括预充电电路，其被配置为向LED像素的列提供预充电电压，配置成向列提供电流的编程电路和被配置为选择性地将预充电电路或编程电路到列。一种系统包括布置在多列中的LED像素阵列。还包括多个预充电电路，每个预充电电路被配置为选择性地向至少一列像素提供预充电电压，以及多个电流源，每个电流源被配置为选择性地向至少一列像素提供电流。一种方法包括基于从多个亮度级中选择的目标亮度级确定多列中的每一列的预充电电压，并将确定的预充电电压提供给列。

2. 发明授权

US08259043B2 Hybrid driver for light-emitting diode displays 有权
标题翻译：用于发光二极管显示器的混合驱动器
公开(公告)号：US08259043B2
公开(公告)日：2012-09-04
申请号：US11759777
申请日：2007-06-07
申请人： John F. L. Schmidt , Kalluri R. Sarma , Jerry A. Roush
发明人： John F. L. Schmidt , Kalluri R. Sarma , Jerry A. Roush
IPC分类号： G09G3/32 , G09G3/30
CPC分类号： G09G3/3291 , G09G3/325 , G09G3/3283 , G09G2310/0248
摘要： Apparatus, systems, and methods are provided for controlling the luminance of a display. One apparatus includes a pre-charge circuit configured to supply a pre-charge voltage to a column of LED pixels, a programming circuit configured to supply current to the column, and a switch configured to selectively couple the pre-charge circuit or the programming circuit to the column. A system includes an array of LED pixels arranged in a plurality of columns. A plurality of pre-charge circuits, each configured to selectively supply a pre-charge voltage to at least one column of pixels, and a plurality of current sources, each configured to selectively supply current to at least one column of pixels are also included. One method includes determining a pre-charge voltage for each of a plurality of columns based on a target luminance level selected from the plurality of luminance levels and supplying the determined pre-charge voltages to the columns.
摘要翻译：提供了用于控制显示器的亮度的装置，系统和方法。一种装置包括预充电电路，其被配置为向LED像素的列提供预充电电压，配置成向列提供电流的编程电路和被配置为选择性地将预充电电路或编程电路到列。一种系统包括布置在多列中的LED像素阵列。还包括多个预充电电路，每个预充电电路被配置为选择性地向至少一列像素提供预充电电压，以及多个电流源，每个电流源被配置为选择性地向至少一列像素提供电流。一种方法包括基于从多个亮度级中选择的目标亮度级确定多列中的每一列的预充电电压，并将确定的预充电电压提供给列。

3. 发明授权

US07956831B2 Apparatus, systems, and methods for dimming an active matrix light-emitting diode (LED) display 有权
标题翻译：用于调光有源矩阵发光二极管（LED）显示器的装置，系统和方法
公开(公告)号：US07956831B2
公开(公告)日：2011-06-07
申请号：US11755562
申请日：2007-05-30
申请人： Jerry A. Roush , Kalluri R. Sarma , John F. L. Schmidt
发明人： Jerry A. Roush , Kalluri R. Sarma , John F. L. Schmidt
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G3/2014 , G09G2300/0814 , G09G2300/0861 , G09G2310/0262 , G09G2310/061
摘要： Apparatus, systems, and methods are provided for dimming pixels on an active matrix light-emitting diode display. One apparatus includes an LED couplable between a voltage source and ground. First and second pulse-width modulation (PWM) drivers are also coupled to the LED. A system includes a plurality of LEDs forming a plurality of rows coupled between a voltage source and ground. A plurality of PWM drivers, each coupled to each of the LEDs in one of the plurality of rows, and a global PWM driver coupled to each of the plurality of LEDs in each of the plurality of rows are also included. One method includes providing current to each LED of a row of LEDs for a first portion of a cycle via a PWM driver, and providing current to each LED in the row for a second portion of the cycle via a different PWM driver.
摘要翻译：提供了用于在有源矩阵发光二极管显示器上调光像素的装置，系统和方法。一个装置包括在电压源和地之间可耦合的LED。第一和第二脉冲宽度调制（PWM）驱动器也耦合到LED。系统包括多个LED，其形成耦合在电压源和地之间的多个行。多个PWM驱动器，每个连接到多个行中的一个中的每个LED，并且还包括耦合到多行中的每一行中的多个LED中的每一个的全局PWM驱动器。一种方法包括经由PWM驱动器向循环的第一部分的一行LED的每个LED提供电流，以及经由不同的PWM驱动器向该循环的第二部分的行中的每个LED提供电流。

4. 发明申请

US20080297452A1 Apparatus, systems, and methods for dimming an active matrix light-emitting diode (LED) display 有权
标题翻译：用于调光有源矩阵发光二极管（LED）显示器的装置，系统和方法
公开(公告)号：US20080297452A1
公开(公告)日：2008-12-04
申请号：US11755562
申请日：2007-05-30
申请人： Jerry A. Roush , Kalluri R. Sarma , John F. L. Schmidt
发明人： Jerry A. Roush , Kalluri R. Sarma , John F. L. Schmidt
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G3/2014 , G09G2300/0814 , G09G2300/0861 , G09G2310/0262 , G09G2310/061
摘要： Apparatus, systems, and methods are provided for dimming pixels on an active matrix light-emitting diode display. One apparatus includes an LED couplable between a voltage source and ground. First and second pulse-width modulation (PWM) drivers are also coupled to the LED. A system includes a plurality of LEDs forming a plurality of rows coupled between a voltage source and ground. A plurality of PWM drivers, each coupled to each of the LEDs in one of the plurality of rows, and a global PWM driver coupled to each of the plurality of LEDs in each of the plurality of rows are also included. One method includes providing current to each LED of a row of LEDs for a first portion of a cycle via a PWM driver, and providing current to each LED in the row for a second portion of the cycle via a different PWM driver.
摘要翻译：提供了用于在有源矩阵发光二极管显示器上调光像素的装置，系统和方法。一个装置包括在电压源和地之间可耦合的LED。第一和第二脉冲宽度调制（PWM）驱动器也耦合到LED。系统包括多个LED，其形成耦合在电压源和地之间的多个行。多个PWM驱动器，每个连接到多个行中的一个中的每个LED，并且还包括耦合到多行中的每一行中的多个LED中的每一个的全局PWM驱动器。一种方法包括经由PWM驱动器向循环的第一部分的一行LED的每个LED提供电流，并且经由不同的PWM驱动器为该循环的第二部分的行中的每个LED提供电流。

5. 发明申请

US20080284693A1 ACTIVE MATRIX ORGANIC LIGHT EMITTING DIODE DISPLAY 审中-公开
标题翻译：有源矩阵有机发光二极管显示
公开(公告)号：US20080284693A1
公开(公告)日：2008-11-20
申请号：US12107271
申请日：2008-04-22
申请人： Kalluri R. Sarma , Jerry A. Roush , John Schmidt
发明人： Kalluri R. Sarma , Jerry A. Roush , John Schmidt
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G3/30 , G09G2300/0842 , G09G2300/0861 , G09G2310/06 , G09G2320/0233 , G09G2320/0606 , G09G2320/0626
摘要： An improved AM OLED pixel circuit and method of wide dynamic range dimming for AM OLED displays are disclosed that maintain color balance throughout the dimming range, and also maintain the uniformity of the luminance and chromaticity of the display at low gray-levels as the display is dimmed to lower luminance values. As such, AM OLED displays can meet the stringent color/dimming specifications required for existing and future avionics, cockpit, and hand-held military device display applications. Essentially, the OLED pixel circuit and method of dimming that are disclosed use Pulse Width Modulation (PWM) of the OLED pixel current to achieve the desired display luminance. Two example circuits are disclosed that externally PW modulate the common cathode voltage or common power supply voltage to modulate the OLED current in order to achieve the desired display luminance. Three example circuits are disclosed that incorporate additional transistor switches in the pixel circuit to modulate the OLED current during the frame time. By PWM of the OLED current, in combination with data voltage (or current) modulation, wide dynamic range dimming can be achieved while maintaining the color balance and the luminance and chromaticity uniformity required over the surface of the display involved.
摘要翻译：公开了一种改进的AM OLED像素电路和用于AM OLED显示器的宽动态范围调光的方法，其在整个调光范围内保持颜色平衡，并且还保持显示器在低灰度级的亮度和色度的均匀性，因为显示器变暗以降低亮度值。因此，AM OLED显示器可以满足现有和未来的航空电子设备，驾驶舱和手持式军事设备显示应用所需的严格的颜色/调光规范。本质上，所公开的OLED像素电路和调光方法使用OLED像素电流的脉冲宽度调制（PWM）来实现期望的显示亮度。公开了两个示例电路，外部PW调制公共阴极电压或公共电源电压以调制OLED电流，以便实现期望的显示亮度。公开了三个示例电路，其在像素电路中并入附加的晶体管开关以在帧时间期间调制OLED电流。通过OLED电流的PWM，结合数据电压（或电流）调制，可以在保持色彩平衡和所涉及的显示器表面所需的亮度和色度均匀性的同时实现宽动态范围调光。

6. 发明授权

US09489886B2 Active matrix organic light emitting diode display 有权
公开(公告)号：US09489886B2
公开(公告)日：2016-11-08
申请号：US12107271
申请日：2008-04-22
申请人： Kalluri R. Sarma , Jerry A. Roush , John Schmidt
发明人： Kalluri R. Sarma , Jerry A. Roush , John Schmidt
IPC分类号： G09G3/30 , G09G3/32
CPC分类号： G09G3/3233 , G09G3/30 , G09G2300/0842 , G09G2300/0861 , G09G2310/06 , G09G2320/0233 , G09G2320/0606 , G09G2320/0626
摘要： An improved AM OLED pixel circuit and method of wide dynamic range dimming for AM OLED displays are disclosed that maintain color balance throughout the dimming range, and also maintain the uniformity of the luminance and chromaticity of the display at low gray-levels as the display is dimmed to lower luminance values. As such, AM OLED displays can meet the stringent color/dimming specifications required for existing and future avionics, cockpit, and hand-held military device display applications. Essentially, the OLED pixel circuit and method of dimming that are disclosed use Pulse Width Modulation (PWM) of the OLED pixel current to achieve the desired display luminance. Two example circuits are disclosed that externally PW modulate the common cathode voltage or common power supply voltage to modulate the OLED current in order to achieve the desired display luminance. Three example circuits are disclosed that incorporate additional transistor switches in the pixel circuit to modulate the OLED current during the frame time. By PWM of the OLED current, in combination with data voltage (or current) modulation, wide dynamic range dimming can be achieved while maintaining the color balance and the luminance and chromaticity uniformity required over the surface of the display involved.

7. 发明授权

US07629691B2 Conductor geometry for electronic circuits fabricated on flexible substrates 有权
标题翻译：在柔性基板上制造的电子电路的导体几何形状
公开(公告)号：US07629691B2
公开(公告)日：2009-12-08
申请号：US10869404
申请日：2004-06-16
申请人： Jerry A. Roush , John F. Schmidt , Sonia R. Dodd
发明人： Jerry A. Roush , John F. Schmidt , Sonia R. Dodd
IPC分类号： H01L23/538
CPC分类号： H01L23/4985 , H01L2924/0002 , H01L2924/12044 , H05K1/0283 , H05K3/4691 , H01L2924/00
摘要： A flexible conductor formed on a flexible substrate. In one embodiment, a semiconductor device is disclosed. The semiconductor device comprises a periodic structure of islands and at least one conductor. The at least one conductor comprises a series of repeating geometric features affixed to the periodic structure of islands. The geometric features of the conductor are adapted to stretch the conductor rather than break the conductor when the substrate is bent.
摘要翻译：形成在柔性基板上的柔性导体。在一个实施例中，公开了一种半导体器件。半导体器件包括岛状物和至少一种导体的周期性结构。所述至少一个导体包括固定到岛的周期性结构的一系列重复几何特征。导体的几何特征适于拉伸导体，而不是在基底弯曲时断开导体。

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