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公开(公告)号：US11948497B2
公开(公告)日：2024-04-02
申请号：US17446459
申请日：2021-08-30
Applicant: Lextar Electronics Corporation
Inventor： Chih-Hao Lin , Chien-Nan Yeh , Jo-Hsiang Chen , Shih-Lun Lai
CPC classification number: G09G3/32 , G09G3/2014 , G09G3/2074 , G09G2320/0242 , G09G2330/12
Abstract: A display device includes a plurality of sub-pixels. The sub-pixels include a first sub-pixel and a second sub-pixel. The first sub-pixel includes a first light emitting element and a first control circuit. The first control circuit is configured to provide a first driving current to the first light emitting element. The second sub-pixel includes a second light emitting element and a second control circuit. The second control circuit is configured to provide a second driving current to the second light emitting element. The first control circuit and the second control circuit are configured to differently control pulse amplitude of the first driving current and pulse amplitude of the second driving current, such that both of the first light emitting element and the second light emitting element emit at a target wavelength or a color point range (e.g. +/−1.5˜2 nm).
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公开(公告)号：US11495169B2
公开(公告)日：2022-11-08
申请号：US17444195
申请日：2021-08-02
Applicant: Lextar Electronics Corporation
Inventor： Chien-Nan Yeh , Jian-Chin Liang
Abstract: The present disclosure relates to a pixel circuit including a light emitting unit, a processing circuit and a driving circuit. The processing circuit is configured to receive a frame display signal, and is configured to calculate the frame display signal to generate a driving duty cycle corresponding to a driving period according to a driving current value. The driving circuit is electrically connected to the processing circuit and the light emitting unit, and is configured to drive the light emitting unit during the driving period according to the driving duty cycle, the driving current value and a driving frequency.
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公开(公告)号：US09867248B2
公开(公告)日：2018-01-09
申请号：US15361076
申请日：2016-11-25
Applicant: Lextar Electronics Corporation
Inventor： Chien-Nan Yeh , Chun-Jong Chang , Po-Shen Chen , Kai-Hsiang Shih , Jhao-Cyuan Huang , Ku-Cheng Lin
CPC classification number: H05B33/0845 , H05B33/083 , H05B33/0857 , H05B33/086
Abstract: A dimming module and a solid state lighting device are shown. The dimming module includes a rectifying circuit, a phase control circuit, a processing circuit and a first driving circuit. The rectifying circuit is configured to convert an input AC voltage to a rectified voltage signal. The phase control circuit is configured to receive the rectified voltage signal and a dimming command, and output a control voltage signal correspondingly in which the phase control circuit controls a phase delay angle of the control voltage signal according to the dimming command. The processing circuit is configured to receive the control voltage signal and adjust a first driving voltage signal according to the phase delay angle. The first driving circuit is configured to receive the first driving voltage signal to drive a first lighting module.
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公开(公告)号：US09474115B2
公开(公告)日：2016-10-18
申请号：US15062178
申请日：2016-03-06
Applicant: Lextar Electronics Corporation
Inventor： Chun-Jong Chang , Po-Shen Chen , Jhao-Cyuan Huang , Chien-Nan Yeh
CPC classification number: H05B33/0815 , H03K5/08 , H05B33/0812
Abstract: A dimming circuit is disclosed herein. The dimming circuit includes a control voltage receiving module and a driving module. The control voltage receiving module is configured to output a reference voltage according to a control voltage. The driving module is electrically connected to the control voltage receiving module, in which the driving module includes a driving transistor, a first transistor and a feedback circuit. The driving transistor is configured to provide a driving current to drive a lighting module. The first transistor is configured to control the driving transistor with feedback according to the reference voltage. The feedback circuit is electrically connected between the driving transistor and the first transistor and configured to determine the operating state of the first transistor according to the driving current.
Abstract translation: 本文公开了一种调光电路。 调光电路包括控制电压接收模块和驱动模块。 控制电压接收模块被配置为根据控制电压输出参考电压。 驱动模块电连接到控制电压接收模块，其中驱动模块包括驱动晶体管，第一晶体管和反馈电路。 驱动晶体管被配置为提供驱动电流以驱动照明模块。 第一晶体管被配置为根据参考电压来控制具有反馈的驱动晶体管。 反馈电路电连接在驱动晶体管和第一晶体管之间，并被配置为根据驱动电流确定第一晶体管的工作状态。
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公开(公告)号：US09398671B2
公开(公告)日：2016-07-19
申请号：US14248274
申请日：2014-04-08
Applicant: LEXTAR ELECTRONICS CORPORATION
Inventor： Chien-Nan Yeh
CPC classification number: H05B37/0281 , H05B33/0815 , Y02B20/42
Abstract: A control device including a first switch, a control unit and a second switch is provided. When the first switch is turned on, a power signal generated by a power supply is transmitted to a lighting load via the first switch. The brightness of the lighting load is gradually increased or reduced as time increases. When the first switch is turned on, the control unit executes a countdown according to a time value. Upon finishing the countdown, the control unit generates a trigger signal and simultaneously the brightness of the lighting load is at a set value. When receiving the trigger signal, the second switch stops transmitting the power signal from the first switch to the lighting load at first and then transmits the power signal from the first switch to the lighting load such that the brightness of the lighting load keeps at the set value.
Abstract translation: 提供一种包括第一开关，控制单元和第二开关的控制装置。 当第一开关接通时，由电源产生的电力信号通过第一开关传送到照明负载。 随着时间的推移，照明负载的亮度逐渐增加或减小。 当第一开关接通时，控制单元根据时间值执行倒计时。 完成倒计时后，控制单元生成触发信号，同时亮度负载的亮度处于设定值。 当接收到触发信号时，第二开关首先停止从第一开关将功率信号传输到照明负载，然后将功率信号从第一开关发送到照明负载，使得照明负载的亮度保持在该组 值。
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Patent Agency Ranking
公开(公告)号：US12094861B2
公开(公告)日：2024-09-17
申请号：US17313023
申请日：2021-05-06
Applicant: Lextar Electronics Corporation
Inventor： Chih-Hao Lin , Jian-Chin Liang , Chien-Nan Yeh , Shih-Lun Lai , Jo-Hsiang Chen
IPC: H01L29/205 , H01L23/00 , H01L25/16 , H01L33/00 , H01L33/60
CPC classification number: H01L25/167 , H01L24/24 , H01L24/25 , H01L25/162 , H01L33/60 , H01L2224/24101 , H01L2224/24137 , H01L2224/24146 , H01L2224/25174 , H01L2924/12041 , H01L2924/1426
Abstract: Disclosed is a light-emitting array structure having a substrate, a plurality of light-emitting pixel units, a plurality of first and second signal wires, and an encapsulating layer. The light-emitting pixel units are arranged in array on the substrate. Each light-emitting pixel unit includes a driving chip, a first flat layer, a first redistribution layer, a second flat layer, a second redistribution layer, and a light-emitting diode. Each first signal wire is electrically connected to a corresponding one of the first redistribution layers and extends in a first direction. The second signal wires extend in a level different from the first signal wires. Each second signal wire is electrically connected to a corresponding one of the second redistribution layers and extends in a second direction different from the first direction. The encapsulating layer covers the light-emitting pixel units, the first and second signal wires, and the substrate.
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公开(公告)号：US10172205B2
公开(公告)日：2019-01-01
申请号：US15591088
申请日：2017-05-09
Applicant: Lextar Electronics Corporation
Inventor： Jhao-Cyuan Huang , Chien-Nan Yeh , Chun-Jong Chang , Ching-Piao Chen , Po-Shen Chen
Abstract: A dimming module includes a triggering circuit, a control signal generating circuit, a voltage converting circuit, and a linear driving circuit. The triggering circuit is configured to control a trigger delay angle of an AC input voltage according to a dimming command, in order to output a first voltage signal correspondingly. The control signal generating circuit is configured to output a control voltage according to the first voltage signal. The voltage converting circuit is configured to output a DC operating voltage having an operating level according to the first voltage signal, and output the DC operating voltage to a lighting module, in which the lighting module includes a light-emitting diode. The linear driving circuit is configured to drive the lighting module according to the control voltage.
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公开(公告)号：US09867241B2
公开(公告)日：2018-01-09
申请号：US15361481
申请日：2016-11-27
Applicant: Lextar Electronics Corporation
Inventor： Chien-Nan Yeh , Chun-Jong Chang , Po-Shen Chen , Kai-Hsiang Shih , Jhao-Cyuan Huang , Ku-Cheng Lin
CPC classification number: H05B33/0818 , H05B33/0827 , H05B33/083 , H05B33/0857
Abstract: A dimming module and a solid state lighting device are shown. The dimming module includes a rectifying circuit, a first driving circuit, and a processing circuit. The rectifying circuit is configured to convert an AC voltage to a rectified voltage. The first driving circuit is configured to receive the rectified voltage to provide a first current so as to drive a first lighting module. The first driving circuit includes a first switch. The first switch turns ON or OFF selectively according to a first control voltage signal so as to control the first current. The processing circuit is configured to receive a dimming command, and adjust the first control voltage signal according to the dimming command. The first control voltage signal is configured to control a phase delay angle and a duty cycle of the first current.
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公开(公告)号：US09538595B2
公开(公告)日：2017-01-03
申请号：US14953410
申请日：2015-11-29
Applicant: Lextar Electronics Corporation
Inventor： Chun-Jong Chang , Jhao-Cyuan Huang , Po-Shen Chen , Chien-Nan Yeh
CPC classification number: H05B33/0824 , H05B33/0809 , H05B33/0845
Abstract: An illumination device includes a rectifier circuit, M light-emitting modules, and a control module. The rectifier circuit has a positive output terminal and a negative output terminal, and generates a driving voltage between the positive output terminal and the negative output terminal according to an input power. The M light-emitting modules are coupled between the positive output terminal and the negative output terminal. Each of the M light-emitting modules has a conduction voltage, and includes a light-emitting unit that includes at least one light-emitting diode. The control module is coupled between the rectifier circuit and the M light-emitting modules, and controls the M light-emitting modules to dynamically form S light-emitting diode strings coupled in parallel with each other. A number of the light-emitting units in each of the S light-emitting diode strings is N, in which S×N=M, where M, S, N are positive integers.
Abstract translation: 照明装置包括整流电路，M个发光模块和控制模块。 整流电路具有正输出端子和负输出端子，根据输入功率在正输出端子和负输出端子之间产生驱动电压。 M个发光模块耦合在正输出端和负输出端之间。 M个发光模块中的每一个具有导通电压，并且包括包括至少一个发光二极管的发光单元。 控制模块耦合在整流电路和M个发光模块之间，并且控制M个发光模块以动态地形成彼此并联耦合的S个发光二极管串。 S个发光二极管串中的多个发光单元是N，其中S×N = M，其中M，S，N是正整数。
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公开(公告)号：US09538594B2
公开(公告)日：2017-01-03
申请号：US13901923
申请日：2013-05-24
Applicant: LEXTAR ELECTRONICS CORPORATION
Inventor： Chun-Kuang Chen , Chien-Nan Yeh
CPC classification number: H05B33/0821 , F21K9/20 , F21V23/005 , F21V23/006 , F21Y2101/00 , F21Y2115/10 , H05B33/0803
Abstract: A lamp includes a lamp tube, a carrier, a light bar circuit board, a driver circuit board, a plurality of first luminous elements and a parallel-connected type luminous unit. The carrier is accommodated in the lamp tube. The light bar circuit board is disposed on the carrier. The driver circuit board is disposed on the carrier and adjoins the light bar circuit board. The first luminous elements are disposed on the light bar circuit board. The parallel-connected type luminous unit is disposed on the driver circuit board, and includes a plurality of luminous element groups connected in parallel.
Abstract translation: 灯包括灯管，载体，灯条电路板，驱动电路板，多个第一发光元件和并联型发光单元。 载体容纳在灯管中。 灯条电路板设置在载体上。 驱动器电路板设置在载体上并与光棒电路板相邻。 第一发光元件设置在灯条电路板上。 并联连接型发光单元设置在驱动电路板上，并且包括并联连接的多个发光元件组。
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