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公开(公告)号：US20220093578A1
公开(公告)日：2022-03-24
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
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：US20210043129A1
公开(公告)日：2021-02-11
申请号：US16672510
申请日：2019-11-03
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：US20220093577A1
公开(公告)日：2022-03-24
申请号：US17100933
申请日：2020-11-22
Applicant: Lextar Electronics Corporation
Inventor： Chih-Hao LIN , Jian-Chin LIANG , Chien-Nan YEH , Shih-Lun LAI , Jo-Hsiang CHEN
IPC: H01L25/16
Abstract: Disclosed is a light-emitting array structure having a substrate, a plurality of light-emitting pixel units, a plurality of first signal wires, a plurality of 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：US20210399168A1
公开(公告)日：2021-12-23
申请号：US16907143
申请日：2020-06-19
Applicant: Lextar Electronics Corporation
Inventor： Shiou-Yi KUO , Jian-Chin LIANG , Chien-Nan YEH
Abstract: A light emitting device includes a first light emitting cell and a second light emitting cell. Each light emitting cell includes a first semiconductor layer, a second semiconductor layer, and an active layer between the first and second semiconductor layers. The second semiconductor layer of the second light emitting cell has an exposed surface. A transparent bonding layer is located between the first and second light emitting cells. A hole is formed on the first and second light emitting cells and the transparent bonding layer. A first route metal is located on a sidewall of the hole and electrically coupled to the second semiconductor layer of the first light emitting cell and the first semiconductor layer of the second light emitting cell. The active layer of the second light emitting cell has an area greater than the active layer of the first light emitting cell.
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公开(公告)号：US20230260979A1
公开(公告)日：2023-08-17
申请号：US17739310
申请日：2022-05-09
Applicant: Lextar Electronics Corporation
Inventor： Fu-Hsin CHEN , Yu-Chun LEE , Cheng-Ta KUO , Jian-Chin LIANG , Tzong-Liang TSAI , Shiou-Yi KUO , Chien-Nan YEH
CPC classification number: H01L25/167 , H01L33/52 , H01L24/20 , H01L24/95 , H01L33/62 , H01L33/60 , H01L33/507
Abstract: A pixel package is provided. The pixel package includes a flexible redistribution layer and a plurality of LED chips arranged on the surface of the flexible redistribution layer in a flip-chip manner. The pixel package also includes a plurality of light-adjusting layers respectively disposed on the LED chips. The pixel package further includes a plurality of flexible composite laminates disposed on the surface of the flexible redistribution layer and between the LED chips.
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Patent Agency Ranking
公开(公告)号：US20170339763A1
公开(公告)日：2017-11-23
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
CPC classification number: H05B33/0851 , F21K9/232 , F21K9/238 , F21S8/02 , F21S8/04 , F21V23/005 , F21Y2115/10 , H05B33/0812 , H05B33/0815 , H05B33/0845 , Y02B20/343
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：US20240365448A1
公开(公告)日：2024-10-31
申请号：US18633423
申请日：2024-04-11
Applicant: Lextar Electronics Corporation
Inventor： Kai-Hsiang SHIH , Zheng-Shou TUNG , Chien-Nan YEH , Jin-Shing TSENG
IPC: H05B45/325 , H05B45/12
CPC classification number: H05B45/325 , H05B45/12
Abstract: A driving device includes a pulse intensity modulation module, a pulse width modulation module, a pulse density modulation module, and a driving module. The pulse intensity modulation module receives an image processing signal related to a pixel and generates a pulse intensity according to the image processing signal. The pulse width modulation module receives the image processing signal and generates a pulse width according to the image processing signal. The pulse density modulation module receives the image processing signal and generates a pulse density according to the image processing signal. The driving module receives the pulse intensity, the pulse width, and the pulse density and generates a driving signal to the pixel according to the pulse intensity, the pulse width, and the pulse density.
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公开(公告)号：US20220398973A1
公开(公告)日：2022-12-15
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
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：US20210366361A1
公开(公告)日：2021-11-25
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：US20160278173A1
公开(公告)日：2016-09-22
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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