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公开(公告)号：US20070241998A1
公开(公告)日：2007-10-18
申请号：US10598822
申请日：2005-03-02
申请人： David Fish , Nigel Young , Herbert Lifka , Andrea Giraldo , Wouter Oepts
发明人： David Fish , Nigel Young , Herbert Lifka , Andrea Giraldo , Wouter Oepts
IPC分类号： G09G3/14
CPC分类号： H01L27/1214 , G09G3/2014 , G09G3/3233 , G09G2300/0809 , G09G2300/0819 , G09G2300/0842 , G09G2300/0852 , G09G2310/0262 , G09G2320/043 , G09G2320/045 , G09G2360/148 , H01L23/552 , H01L27/3262 , H01L27/3269 , H01L51/5228 , H01L51/5271 , H01L2251/5315 , H01L2924/0002 , H01L2924/00
摘要： An active matrix display device comprises an array of display pixels, with each pixel comprising an EL display element, a light-dependent device for detecting the brightness of the display element and a drive transistor circuit for driving a current through the display element. The drive transistor is controlled in response to the light-dependent device output so that ageing compensation can be implemented. The light-dependent device is located laterally of the area of light emitting material of the EL display element. In this way, the light-dependent device does not cause step coverage problems and can be integrated into the pixel layout without affecting the pixel aperture. Furthermore, the light dependent device can extend alongside the full length of the area of light emitting material so that it receives light input from a large part of the display element area.
摘要翻译： 有源矩阵显示装置包括显示像素阵列，每个像素包括EL显示元件，用于检测显示元件的亮度的依赖光的装置和用于驱动通过显示元件的电流的驱动晶体管电路。 响应于依赖于光的器件输出来控制驱动晶体管，从而可以实现老化补偿。 光依赖装置位于EL显示元件的发光材料的区域的横向。 以这种方式，光依赖装置不会引起步骤覆盖问题，并且可以将其集成到像素布局中而不影响像素孔径。 此外，依赖于光的装置可以沿着发光材料区域的全长延伸，从而接收来自显示元件区域的大部分的光输入。
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公开(公告)号：US08310413B2
公开(公告)日：2012-11-13
申请号：US10598822
申请日：2005-03-02
申请人： David A. Fish , Nigel D. Young , Herbert Lifka , Andrea Giraldo , Wouter Oepts
发明人： David A. Fish , Nigel D. Young , Herbert Lifka , Andrea Giraldo , Wouter Oepts
CPC分类号： H01L27/1214 , G09G3/2014 , G09G3/3233 , G09G2300/0809 , G09G2300/0819 , G09G2300/0842 , G09G2300/0852 , G09G2310/0262 , G09G2320/043 , G09G2320/045 , G09G2360/148 , H01L23/552 , H01L27/3262 , H01L27/3269 , H01L51/5228 , H01L51/5271 , H01L2251/5315 , H01L2924/0002 , H01L2924/00
摘要： An active matrix display device comprises an array of display pixels, with each pixel comprising an EL display element, a light-dependent device for detecting the brightness of the display element and a drive transistor circuit for driving a current through the display element. The drive transistor is controlled in response to the light-dependent device output so that ageing compensation can be implemented. The light-dependent device is located laterally of the area of light emitting material of the EL display element. In this way, the light-dependent device does not cause step coverage problems and can be integrated into the pixel layout without affecting the pixel aperture. Furthermore, the light dependent device can extend alongside the full length of the area of light emitting material so that it receives light input from a large part of the display element area.
摘要翻译： 有源矩阵显示装置包括显示像素阵列，每个像素包括EL显示元件，用于检测显示元件的亮度的依赖光的装置和用于驱动通过显示元件的电流的驱动晶体管电路。 响应于依赖于光的器件输出来控制驱动晶体管，从而可以实现老化补偿。 光依赖装置位于EL显示元件的发光材料的区域的横向。 以这种方式，光依赖装置不会引起步骤覆盖问题，并且可以将其集成到像素布局中而不影响像素孔径。 此外，依赖于光的装置可以沿着发光材料区域的全长延伸，从而接收来自显示元件区域的大部分的光输入。
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公开(公告)号：US20070205420A1
公开(公告)日：2007-09-06
申请号：US10599082
申请日：2005-03-22
申请人： Marc Ponjee , Wouter Oepts , Johannes Rosink , Hans-Helmut Bechtel , Nigel Young
发明人： Marc Ponjee , Wouter Oepts , Johannes Rosink , Hans-Helmut Bechtel , Nigel Young
IPC分类号： H01L27/15
CPC分类号： H01L27/3269 , H01L27/3246 , H01L51/5203 , H01L2251/5315
摘要： An active matrix display device comprises an array of display pixels provided over a common substrate (60). Each pixel has an upwardly emitting current-driven light emitting display element (2) comprising a lower electrode (74) and an upper substantially transparent electrode (80a. A light sensitive device (27) for sensing the display element (2) light output is positioned between the substrate (60) and the display element (2), and a drive transistor (22) is controlled in response to the light-sensitive device (27) output. The lower electrode (74) of the display element is partially transmissive to transmit at most 20% of the light incident on the lower electrode, at least a portion of the transmitted light being directed to the underlying light-sensitive device (27).
摘要翻译： 有源矩阵显示装置包括设置在公共基板（60）上的显示像素阵列。 每个像素具有向上发射电流驱动的发光显示元件（2），包括下电极（74）和上基本上透明的电极（80a），用于感测显示元件（2）的光输出 位于所述基板（60）和所述显示元件（2）之间，并且响应于所述感光装置（27）输出来控制驱动晶体管（22），所述显示元件的下电极（74）部分地 透射以透射入射在下电极上的光的至多20％，至少一部分透射光被引导到下面的感光装置（27）。
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公开(公告)号：US20130249430A1
公开(公告)日：2013-09-26
申请号：US13989472
申请日：2011-11-22
IPC分类号： H05B33/08
CPC分类号： H05B33/0809 , H05B33/0848
摘要： Driver circuits (20) for driving light circuits (21) comprising light emitting diodes are provided with converters (22) for converting input signals into output signals comprising pulses per cycle. The converters (22) comprise adapters (33) for, in response to differences between measured amplitude values of the input/output signals and nominal amplitude values of the input/output signals, adapting widths of the pulses. Then, signals having relatively precise amplitudes are no longer required. Said adapting may comprise increasing/decreasing the widths in case the measured amplitude value is smaller/larger, respectively, than the nominal amplitude value. The measured amplitude value divided by the nominal amplitude value is equal to a correction value. An adjusted duty cycle of the output signal may be made equal to a nominal duty cycle of the output signal divided by the correction value. Said adapting may be performed in a production/testing process environment.
摘要翻译： 用于驱动包括发光二极管的光电路（21）的驱动电路（20）设置有用于将输入信号转换成包括每个周期的脉冲的输出信号的转换器（22）。 转换器（22）包括适配器（33），用于响应于输入/输出信号的测量幅度值和输入/输出信号的标称振幅值之间的差异，适应脉冲的宽度。 然后，不再需要具有相对精确幅度的信号。 所述适配可以包括在测量的振幅值分别小于/大于标称振幅值的情况下增加/减小宽度。 测量的振幅值除以标称振幅值等于校正值。 可以将输出信号的调整占空比等于输出信号的额定占空比除以校正值。 所述适应可以在生产/测试过程环境中执行。
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公开(公告)号：US20090160756A1
公开(公告)日：2009-06-25
申请号：US12300154
申请日：2007-04-23
IPC分类号： G09G3/36
CPC分类号： G09G3/3426 , G09G3/3413 , G09G2320/0633 , G09G2320/0646
摘要： A display device comprises an image display unit (2) configured to display an image, a backlight (6) comprising at least one group of light emitting sources arranged on a substrate (3), said group comprising at least a red, a green, a blue and a white light emitting source, and backlight control means (7). The backlight control means are configured to identify respective specific drive levels of the red, green and blue light sources, select a drive level for the white light source in dependence thereof and generate actual drive levels of the red, green and blue light sources.
摘要翻译： 显示装置包括被配置为显示图像的图像显示单元（2），包括布置在基板（3）上的至少一组发光源的背光源（6），所述组至少包括红色，绿色， 蓝色和白色发光源以及背光控制装置（7）。 背光控制装置被配置为识别红色，绿色和蓝色光源的相应的特定驱动电平，依赖于白色光源选择驱动电平并产生红色，绿色和蓝色光源的实际驱动电平。
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公开(公告)号：US20130334953A1
公开(公告)日：2013-12-19
申请号：US14002134
申请日：2012-02-15
IPC分类号： H05B33/02
CPC分类号： H01L33/64 , F21V19/001 , F21V29/89 , F21Y2115/10 , H05B33/02 , H05B33/06
摘要： A light-emitting device (1), comprising an LED-module (3) comprising at least one LED mounted on a carrier and at least one connection pad (10a-b) for electrical connection of the LED module (3), a heat dissipator (2) for dissipating heat generated by the LED when in operation, a connection board (4) comprising a substrate having a conductor pattern for enabling provision of external power to the LED module (3), an interconnecting arrangement (7a-d) comprising at least one connection spring (7a-d) attached to the connection board (4) electrically interconnecting the at least one connection pad (10a-b) of the LED module (3) with the conductor pattern of the connection board (4), and an LED-holder comprising at least one holding spring (1a-d) attached to the connection board (4) exerting a spring force there by pressing the LED-module (3) against the heat dissipator (2) to provide a thermal connection between the LED-module (3) and the heat dissipator (2). The interconnecting arrangement (7a-d) is configured to allow movement between the conductor pattern of the connection board (4) and the at least one connection pad (10a-b). The at least one connection spring (7a-d) constitutes the at least one holding spring (7a-d), to simultaneously electrically interconnect the at least one connection pad (10a-b) of the LED-module (3) with the conductor pattern of the connection board (4) and press the LED-module (3) against the heat dissipator (2).
摘要翻译： 一种发光器件（1），包括LED模块（3），LED模块（3）包括安装在载体上的至少一个LED和用于LED模块（3）的电连接的至少一个连接焊盘（10a-b） 用于在操作时散发由LED产生的热量的散热器（2）;连接板（4），包括具有用于向LED模块（3）提供外部电力的导体图案的基板;互连装置（7a-d） 包括连接到所述连接板（4）的至少一个连接弹簧（7a-d），所述连接板将所述LED模块（3）的所述至少一个连接垫（10a-b）与所述连接板（4）的导体图案电连接， 和LED支架，其包括附接到连接板（4）的至少一个保持弹簧（1a-d），其通过将LED模块（3）压靠在散热器（2）上而施加弹簧力，以提供热量 LED模块（3）和散热器（2）之间的连接。 互连装置（7a-d）构造成允许连接板（4）的导体图案与至少一个连接垫（10a-b）之间的移动。 所述至少一个连接弹簧（7a-d）构成所述至少一个保持弹簧（7a-d），以将所述LED模块（3）的所述至少一个连接垫（10a-b）与所述导体 连接板（4）的图案，并将LED模块（3）按压到散热器（2）上。
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公开(公告)号：US20110111536A1
公开(公告)日：2011-05-12
申请号：US13002573
申请日：2009-06-10
IPC分类号： H01L33/64
CPC分类号： F21V29/70 , F21K9/00 , F21K9/20 , F21S2/005 , F21V19/004 , F21V29/507 , F21V29/74 , F21Y2105/10 , F21Y2115/10
摘要： A method of mounting a light emitting diode (LED) module (100) to a heat sink (102), the method comprising the steps of placing the LED module (100) in a hole (120) in the heat sink (102); and expanding a portion of the LED module (100) such that the LED module (100) is secured to the heat sink (102). The method provides a cost efficient way of securing an LED module to a heat sink where the mount has a high reliability over time.
摘要翻译： 一种将发光二极管（LED）模块（100）安装到散热器（102）的方法，所述方法包括以下步骤：将LED模块（100）放置在散热器（102）中的孔（120）中; 以及扩展所述LED模块（100）的一部分，使得所述LED模块（100）固定到所述散热器（102）。 该方法提供了将LED模块固定到散热器的成本有效的方式，其中安装件随着时间具有高可靠性。
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公开(公告)号：US07671832B2
公开(公告)日：2010-03-02
申请号：US11456527
申请日：2006-07-10
IPC分类号： G09G3/36
CPC分类号： G02F1/133603 , G02F1/133609 , G02F2001/133613
摘要： Various techniques are described for improving the color uniformity across a backlight for backlighting an LCD. In one embodiment, the backlight uses rows of red, green, and blue LEDs in a mixing chamber. The LEDs are arranged in clusters, such as GRBG or GBRG, each cluster having an associated white point. In order to achieve color uniformity along the left and right edges of the backlight, the LEDs in those edge clusters are specially selected to compensate for the color imbalance in the white point relative to the dimensions of the cluster. For example, a non-compensated cluster of GRBG along the left edge will produce a reddish tint along the left edge since the red peak intensity is to the left of the center of the cluster. To offset this reddish tint along the left side, the cluster's overall white point is blue-cyan shifted. As a result, the left edge of the backlight has the same white point as near the middle of the backlight, where the white point imbalance of a single cluster is offset by the white point imbalance of the surrounding clusters. Similarly, a GBRG cluster along the left edge will have its white point red-yellow shifted.
摘要翻译： 描述了用于改善用于背光LCD的背光的颜色均匀性的各种技术。 在一个实施例中，背光在混合室中使用红色，绿色和蓝色LED行。 LED以簇布置，例如GRBG或GBRG，每个簇具有相关联的白点。 为了实现背光源的左右边缘的颜色均匀性，这些边缘簇中的LED被特别选择以补偿白点相对于簇的尺寸的颜色不平衡。 例如，沿着左边缘的GRBG的未补偿簇将沿着左边缘产生红色的色调，因为红色峰值强度在簇的中心的左侧。 为了抵消左侧的淡红色，集群的整体白点是蓝 - 青移动。 结果，背光源的左边缘具有与靠近背光中间相同的白点，其中单个簇的白点不平衡被周围簇的白点不平衡所抵消。 类似地，沿着左边缘的GBRG簇将其白点偏移为黄色。
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公开(公告)号：US09313838B2
公开(公告)日：2016-04-12
申请号：US13989472
申请日：2011-11-22
CPC分类号： H05B33/0809 , H05B33/0848
摘要： Driver circuits (20) for driving light circuits (21) comprising light emitting diodes are provided with converters (22) for converting input signals into output signals comprising pulses per cycle. The converters (22) comprise adapters (33) for, in response to differences between measured amplitude values of the input/output signals and nominal amplitude values of the input/output signals, adapting widths of the pulses. Then, signals having relatively precise amplitudes are no longer required. Said adapting may comprise increasing/decreasing the widths in case the measured amplitude value is smaller/larger, respectively, than the nominal amplitude value. The measured amplitude value divided by the nominal amplitude value is equal to a correction value. An adjusted duty cycle of the output signal may be made equal to a nominal duty cycle of the output signal divided by the correction value. Said adapting may be performed in a production/testing process environment.
摘要翻译： 用于驱动包括发光二极管的光电路（21）的驱动电路（20）设置有用于将输入信号转换成包括每个周期的脉冲的输出信号的转换器（22）。 转换器（22）包括适配器（33），用于响应于输入/输出信号的测量幅度值和输入/输出信号的标称振幅值之间的差异，适应脉冲的宽度。 然后，不再需要具有相对精确幅度的信号。 所述适配可以包括在测量的振幅值分别小于/大于标称振幅值的情况下增加/减小宽度。 测量的振幅值除以标称振幅值等于校正值。 可以将输出信号的调整占空比等于输出信号的额定占空比除以校正值。 所述适应可以在生产/测试过程环境中执行。
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公开(公告)号：US20080007509A1
公开(公告)日：2008-01-10
申请号：US11456527
申请日：2006-07-10
IPC分类号： G09G3/36
CPC分类号： G02F1/133603 , G02F1/133609 , G02F2001/133613
摘要： Various techniques are described for improving the color uniformity across a backlight for backlighting an LCD. In one embodiment, the backlight uses rows of red, green, and blue LEDs in a mixing chamber. The LEDs are arranged in clusters, such as GRBG or GBRG, each cluster having an associated white point. In order to achieve color uniformity along the left and right edges of the backlight, the LEDs in those edge clusters are specially selected to compensate for the color imbalance in the white point relative to the dimensions of the cluster. For example, a non-compensated cluster of GRBG along the left edge will produce a reddish tint along the left edge since the red peak intensity is to the left of the center of the cluster. To offset this reddish tint along the left side, the cluster's overall white point is blue-cyan shifted. As a result, the left edge of the backlight has the same white point as near the middle of the backlight, where the white point imbalance of a single cluster is offset by the white point imbalance of the surrounding clusters. Similarly, a GBRG cluster along the left edge will have its white point red-yellow shifted.
摘要翻译： 描述了用于改善用于背光LCD的背光的颜色均匀性的各种技术。 在一个实施例中，背光在混合室中使用红色，绿色和蓝色LED行。 LED以簇布置，例如GRBG或GBRG，每个簇具有相关联的白点。 为了实现背光源的左右边缘的颜色均匀性，这些边缘簇中的LED被特别选择以补偿白点相对于簇的尺寸的颜色不平衡。 例如，沿着左边缘的GRBG的未补偿簇将沿着左边缘产生红色的色调，因为红色峰值强度在簇的中心的左侧。 为了抵消左侧的淡红色，集群的整体白点是蓝 - 青移动。 结果，背光源的左边缘具有与靠近背光中间相同的白点，其中单个簇的白点不平衡被周围簇的白点不平衡所抵消。 类似地，沿着左边缘的GBRG簇将其白点偏移为黄色。
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