公开(公告)号：US09620046B2

公开(公告)日：2017-04-11

申请号：US14466629

申请日：2014-08-22

Applicant: Samsung Display Co. Ltd.

Inventor： Bong Sub Song

IPC: G09G3/00 ,  G01R31/44 ,  H01L27/32 ,  G01R31/26 ,  G09G3/3233

CPC classification number: G09G3/006 ,  G01R31/2642 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2330/10

Abstract: A method of detecting a defect in an organic light-emitting display device includes: preparing an organic light-emitting display device including an organic light-emitting display panel which includes a plurality of pixels, where each of the pixels includes a driving transistor which operates in a saturation region or a transition region based on a potential difference between a source and a drain thereof and outputs a driving current, and an organic light-emitting diode which emits light based on the driving current; providing a plurality of voltages to the organic light-emitting display panel to operate the driving transistor in the transition region, and determining whether the organic light-emitting display device is defective based on an image, which is displayed on the organic light-emitting display panel based on data applied thereto.

公开(公告)号：US20170010333A1

公开(公告)日：2017-01-12

申请号：US15216353

申请日：2016-07-21

Applicant: ZHEJIANG SHENGHUI LIGHTING CO., LTD

Inventor： JINXIANG SHEN ,  FANG CHEN ,  YEHUA WAN

IPC: G01R31/44 ,  F21V23/04 ,  F21V23/00 ,  H05B33/08

CPC classification number: G01R31/44 ,  F21V23/005 ,  F21V23/04 ,  F21Y2115/10 ,  H05B33/0815 ,  H05B33/0848 ,  H05B33/089

Abstract: The present invention provides an LED lighting device and a method for determining an operation time of the LED lighting device. The LED lighting device includes an LED module configured to emit light; an LED driver configured to supply power and drive the LED module; a micro controller unit (MCU) module that is connected to the LED driver and configured to measure an operation time of the LED lighting device; a display module that is connected to the MCU module and configured to receive the operation time sent from the MCU module and display the operation time; and a power supply module configured to supply power to the MCU module and the display module.

Abstract translation: 本发明提供了一种用于确定LED照明装置的操作时间的LED照明装置和方法。 LED照明装置包括配置成发光的LED模块; 配置为提供电力并驱动所述LED模块的LED驱动器; 微控制器单元（MCU）模块，其连接到所述LED驱动器并且被配置为测量所述LED照明装置的操作时间; 连接到MCU模块并配置为接收从MCU模块发送的操作时间并显示操作时间的显示模块; 以及电源模块，被配置为向所述MCU模块和所述显示模块供电。

公开(公告)号：US20170005298A1

公开(公告)日：2017-01-05

申请号：US15120762

申请日：2014-12-24

Applicant: JOLED INC.

Inventor： Katsuyuki ISHIZU

IPC: H01L51/56 ,  H01L21/66 ,  G01R31/44 ,  H01L27/32

CPC classification number: H01L51/56 ,  G01R31/44 ,  G09G3/3241 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2310/0262 ,  G09G2320/043 ,  G09G2330/08 ,  G09G2330/12 ,  G09G2340/06 ,  H01L22/20 ,  H01L27/3244 ,  H01L2227/323 ,  H01L2251/568

Abstract: A plurality of pixels arranged in a matrix each include an EL element, a transistor, and a transistor. The EL element includes a cathode to which a first voltage is applied. The transistor includes a gate connected to a gate signal line, a source connected to an anode of the EL element, and a drain to which a second voltage having a potential higher than a potential of the first voltage is applied. A method for manufacturing the EL display device includes: applying the second voltage to the anode of the EL element via the transistor, by applying an ON voltage to the gate signal line; and detecting light emission by the EL element, using an optical detector, in a state in which the ON voltage is being applied to the gate signal line.

Abstract translation: 排列成矩阵的多个像素包括EL元件，晶体管和晶体管。 EL元件包括施加第一电压的阴极。 晶体管包括连接到栅极信号线的栅极，连接到EL元件的阳极的源极和施加具有高于第一电压的电势的第二电压的漏极。 一种EL显示装置的制造方法，其特征在于，通过对栅极信号线施加导通电压，经由晶体管将第二电压施加到EL元件的阳极; 以及在导通电压被施加到栅极信号线的状态下使用光学检测器检测EL元件的发光。

公开(公告)号：US09515650B2

公开(公告)日：2016-12-06

申请号：US15056846

申请日：2016-02-29

Applicant: Renesas Electronics Corporation

Inventor： Sakae Nakajima

IPC: H01L27/088 ,  H01L27/02 ,  H03K17/567 ,  H01L29/78 ,  G01R19/00 ,  H03K3/353 ,  G01R31/44 ,  H01L29/739 ,  H03K17/687 ,  H05B37/02 ,  H05B37/03 ,  H01L23/00 ,  H01L27/092

CPC classification number: H03K17/567 ,  G01R19/0084 ,  G01R31/44 ,  H01L24/05 ,  H01L24/06 ,  H01L24/48 ,  H01L24/49 ,  H01L24/73 ,  H01L27/0207 ,  H01L27/088 ,  H01L27/092 ,  H01L29/7395 ,  H01L29/7815 ,  H01L29/7825 ,  H01L2224/04042 ,  H01L2224/05553 ,  H01L2224/05554 ,  H01L2224/06134 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48257 ,  H01L2224/48465 ,  H01L2224/49107 ,  H01L2224/49175 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/13055 ,  H03K3/353 ,  H03K17/687 ,  H05B37/0227 ,  H05B37/03 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/05599 ,  H01L2224/29099 ,  H01L2924/00012

Abstract: A driver IC (Integrated Circuit) includes a power supply terminal; an output terminal to be coupled to a load element; a connection node on a current path between the power supply terminal and the output terminal; a substrate resistance, having one end coupled to the connection node; an output transistor including a gate, wherein the output transistor is coupled in series with the substrate resistance through the connection node; a resistance, having one end coupled to an other end of the substrate resistance; and a voltage detecting circuit configured to detect a voltage depending on a voltage between the one end of the substrate resistance and the other end of the substrate resistance, and to output an output signal, which is as an output of the voltage detecting circuit, to the gate of the output transistor.

Abstract translation: 驱动器IC（集成电路）包括电源端子; 要耦合到负载元件的输出端子; 电源端子和输出端子之间的电流路径上的连接节点; 衬底电阻，其一端耦合到所述连接节点; 包括栅极的输出晶体管，其中所述输出晶体管通过所述连接节点与所述衬底电阻串联耦合; 电阻，其一端耦合到衬底电阻的另一端; 以及电压检测电路，被配置为根据基板电阻的一端和基板电阻的另一端之间的电压来检测电压，并将作为电压检测电路的输出的输出信号输出到 输出晶体管的栅极。

公开(公告)号：US09500719B2

公开(公告)日：2016-11-22

申请号：US14356819

申请日：2012-11-01

Applicant: Ulta-Lit Tree Co.

Inventor： Dennis Blair Cherry ,  John DeCosmo ,  Howard L. Frank

IPC: G01R31/26 ,  G01R31/44 ,  H05B33/08 ,  F21S2/00 ,  G01R1/00

CPC classification number: G01R31/44 ,  F21S2/00 ,  F21S2017/00 ,  G01R1/00 ,  G01R31/2635 ,  H05B33/089 ,  Y10T29/49732

Abstract: According to one embodiment, a diagnostic device (8) for identifying a defect in an LED light string includes a probe (18) and a polarity selector switch (16). The LED light string includes a conductor provided within an insulation layer. The probe (18) is configured to penetrate the insulation layer and contact the conductor of an LED light string. The polarity selector switch (16) is electrically coupled to the probe (18) and configured to control the polarity of an electrical waveform provided to the probe (18).

Abstract translation: 根据一个实施例，用于识别LED灯串中的缺陷的诊断装置（8）包括探针（18）和极性选择开关（16）。 LED灯串包括设置在绝缘层内的导体。 探针（18）被配置为穿透绝缘层并接触LED灯串的导体。 极性选择器开关（16）电耦合到探针（18）并且被配置为控制提供给探针（18）的电波形的极性。

公开(公告)号：US20160262221A1

公开(公告)日：2016-09-08

申请号：US15016998

申请日：2016-02-05

Applicant: Panasonic Intellectual Propery Management Co., Ltd

Inventor： Shinsuke NISHIOKA

IPC: H05B33/08 ,  G01R31/44

CPC classification number: H05B33/086 ,  G01R31/44

Abstract: A lighting device which changes a hue of light which the lighting device outputs, by changing a brightness proportion between a first light source and a second light source, the lighting device including: a light source which includes the first light source and the second light source, storage which stores control values for causing the light source to output light having a same hue as a hue of light which is output from a light source included in another lighting device; a current adjuster which calculates a first current value, and a second current value, using the control values; and a power source which supplies a first current to the first light source according to the first current value and supplies a second current to the second light source according to the second current value.

Abstract translation: 一种照明装置，其通过改变第一光源和第二光源之间的亮度比例来改变照明装置输出的光的色调，所述照明装置包括：包括第一光源和第二光源的光源 存储用于使光源输出具有与包含在另一照明装置中的光源输出的色调相同的色调的光的控制值; 使用所述控制值计算第一电流值的电流调节器和第二电流值; 以及电源，其根据第一电流值向第一光源提供第一电流，并且根据第二电流值向第二光源提供第二电流。

公开(公告)号：US09316687B2

公开(公告)日：2016-04-19

申请号：US14187194

申请日：2014-02-21

Applicant: EPISTAR CORPORATION

Inventor： Chia-Liang Hsu ,  Chih-Chiang Lu

IPC: G01J1/42 ,  G01R31/308 ,  G01R31/44 ,  G01R31/26

CPC classification number: G01R31/308 ,  G01J1/42 ,  G01J2001/4252 ,  G01R31/2635 ,  G01R31/44

Abstract: Disclosed is a method for testing a light-emitting device comprising the steps of: providing a light-emitting device comprising a plurality of light-emitting diodes; driving the plurality of the light-emitting diodes with a current; generating an image of the light-emitting device; and determining a luminous intensity of each of the light-emitting diodes; wherein the magnitude of the current is determined such that the current density driving each of the light-emitting diodes is smaller than or equal to 300 mA/mm2.

Abstract translation: 公开了一种用于测试发光器件的方法，包括以下步骤：提供包括多个发光二极管的发光器件; 用电流驱动多个发光二极管; 产生发光装置的图像; 以及确定每个所述发光二极管的发光强度; 其中确定电流的大小使得驱动每个发光二极管的电流密度小于或等于300mA / mm2。

公开(公告)号：US09246403B2

公开(公告)日：2016-01-26

申请号：US14372941

申请日：2013-01-22

Applicant: Bernhard Siessegger ,  Marijan Kostrun

Inventor： Bernhard Siessegger ,  Marijan Kostrun

IPC: H02M7/06 ,  H05B33/08 ,  H01L25/10 ,  H01L25/16 ,  H05B37/02 ,  H05B41/39 ,  H01L27/15 ,  H01L33/62 ,  H01L25/075 ,  G01R31/26 ,  G01R31/40 ,  G01R31/44 ,  G01R31/02

CPC classification number: H02M7/06 ,  G01R31/028 ,  G01R31/2633 ,  G01R31/2635 ,  G01R31/40 ,  G01R31/44 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/156 ,  H01L33/62 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2924/12032 ,  H01L2924/12044 ,  H01L2924/1301 ,  H01L2924/13033 ,  H01L2924/1305 ,  H01L2924/13091 ,  H05B33/0803 ,  H05B33/0806 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0821 ,  H05B33/0827 ,  H05B33/083 ,  H05B33/0845 ,  H05B33/0848 ,  H05B33/0851 ,  H05B33/086 ,  H05B33/0884 ,  H05B33/0893 ,  H05B37/02 ,  H05B37/0209 ,  H05B41/39 ,  Y02B20/343 ,  Y02B20/345 ,  Y02B20/346 ,  Y02B20/347 ,  Y10T307/615 ,  H01L2924/00014 ,  H01L2924/00

Abstract: Solid state lighting systems are disclosed for providing uniform brightness of LEDs serially connected in a string. In some embodiments, the LEDs can be powered directly from the mains such that no switch-mode power supply or the output storage elements associated therewith are needed. In some such cases, a linear regulator and switches can be used to control the current through the LEDs to provide uniform brightness. Other embodiments can be used with a switch-mode based driver topology and/or storage elements coupled in parallel with clusters of the LEDs. In any such cases, control logic (e.g., microcontroller or other suitable controller) can be used to control the switches accordingly to provide uniform brightness, and in some cases, to mitigate the implications of having no SMPS output storage element. In some embodiments, the switching pattern provided by the control logic is random, although other switching patterns can be used.

Abstract translation: 公开了固态照明系统，用于提供串联连接在串中的LED的均匀亮度。 在一些实施例中，LED可以直接从电源供电，使得不需要开关模式电源或与其相关联的输出存储元件。 在一些这种情况下，可以使用线性调节器和开关来控制通过LED的电流以提供均匀的亮度。 其他实施例可以与基于开关模式的驱动器拓扑结构和/或与LED的集群并联耦合的存储元件一起使用。 在任何这种情况下，可以使用控制逻辑（例如，微控制器或其它合适的控制器）来相应地控制开关以提供均匀的亮度，并且在一些情况下，可以减轻没有SMPS输出存储元件的影响。 在一些实施例中，由控制逻辑提供的切换模式是随机的，尽管可以使用其他切换模式。

公开(公告)号：US20150382424A1

公开(公告)日：2015-12-31

申请号：US14314580

申请日：2014-06-25

Applicant: Ketra, Inc.

Inventor： David J. Knapp ,  Joseph A. Savage

IPC: H05B33/08 ,  G01R31/44

CPC classification number: H05B33/0866 ,  G01R31/2635 ,  G01R31/44 ,  H05B33/0815 ,  H05B33/0827 ,  H05B33/0845 ,  H05B33/0857 ,  H05B37/02 ,  H05B37/0272 ,  Y10S362/80

Abstract: An illumination device and method is provided herein for controlling individual light emitting diodes (LEDs) in an LED illumination device, so that a desired luminous flux and a desired chromaticity of the device can be maintained over changes in drive current and temperature. According to one embodiment, the illumination device comprises a plurality of emission LEDs, a storage medium, an LED driver and receiver circuit and a control circuit. The storage medium may store a table of calibration values correlating forward voltage and drive current to chromaticity and luminous flux at a plurality of temperatures for each of the plurality of emission LEDs. The LED driver and receiver circuit may apply respective drive currents to the emission LEDs to produce substantially continuous illumination, and may periodically turn the emission LEDs off to measure operating forward voltages that develop across each emission LED. The control circuit may determine whether a target luminance setting or a target chromaticity setting for the illumination device has changed, and if so, may determine new respective drive currents needed to achieve the target luminance setting and the target chromaticity setting using the operating forward voltages measured across each emission LED, the table of calibration values and one or more interpolation techniques.

Abstract translation: 本文提供一种用于控制LED照明装置中的各个发光二极管（LED）的照明装置和方法，使得可以在驱动电流和温度的变化上保持所需的光通量和设备的期望色度。 根据一个实施例，照明装置包括多个发射LED，存储介质，LED驱动器和接收器电路以及控制电路。 存储介质可以存储将正向电压和驱动电流相关联的校准值表与多个发射LED中的每一个的多个温度下的色度和光通量相关联。 LED驱动器和接收器电路可以将相应的驱动电流施加到发射LED以产生基本上连续的照明，并且可以周期性地关闭发射LED，以测量在每个发射LED上产生的正向工作电压。 控制电路可以确定目标亮度设置或照明设备的目标色度设置是否已经改变，如果是，则可以使用测量的运行正向电压来确定实现目标亮度设置和目标色度设置所需的新的相应驱动电流 跨每个发光LED，校准值表和一个或多个插值技术。

公开(公告)号：US20150362562A1

公开(公告)日：2015-12-17

申请号：US14496278

申请日：2014-09-25

Applicant: BOE Technology Group Co., Ltd. ,  BOE Optical Science and Technology Co., Ltd.

Inventor： Zhenghe Gu ,  Chunlei Cao

IPC: G01R31/44 ,  G09G3/00 ,  G09G3/36

CPC classification number: G01R31/44 ,  G09G3/006 ,  G09G3/3406 ,  G09G3/36 ,  G09G2310/0237 ,  H05B37/03

Abstract: A testing system for a backlight source is provided. The testing system comprises: a power module; a first ON/OFF module; a second ON/OFF module, wherein a circuit is formed by the power module, the first ON/OFF module, and the second ON/OFF module; and a control module electrically connected to the first ON/OFF module and the second ON/OFF module respectively. The second ON/OFF module is arranged to be electrically connected in parallel with the backlight source. The control module is configured such that when receiving a control signal, the control module controls the first ON/OFF module to switch to an ON state from an OFF state, and after a predetermined time delay, the control module controls the second ON/OFF module to switch to an OFF state from an ON state so as to connect the backlight source into the circuit.

Abstract translation: 提供了一种用于背光源的测试系统。 测试系统包括：电源模块; 第一个ON / OFF模块; 第二ON / OFF模块，其中由所述电源模块，所述第一ON / OFF模块和所述第二ON / OFF模块形成电路; 以及分别电连接到第一ON / OFF模块和第二ON / OFF模块的控制模块。 第二ON / OFF模块被布置成与背光源并联电连接。 控制模块被配置成当接收到控制信号时，控制模块控制第一ON / OFF模块从OFF状态切换到ON状态，并且在预定的时间延迟之后，控制模块控制第二ON / OFF 模块从ON状态切换到OFF状态，以将背光源连接到电路中。