公开(公告)号：US11898712B2

公开(公告)日：2024-02-13

申请号：US17607045

申请日：2019-12-12

Applicant: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.

Inventor： Jinhui Zhang ,  Yikai Yuan ,  Long Zhao ,  Chuyi Li ,  Cheng Li

IPC: F21S4/28 ,  F21V9/30

CPC classification number: F21S4/28 ,  F21V9/30

Abstract: A white light emitting device, a light bar and a light apparatus. A relative spectrum of the white light emitting device is ϕ(λ). A relative spectrum of a black body radiation with a corresponding color temperature is S(λ). An area normalization is performed on ϕ(λ) and S(λ) to convert an equal energy spectrum ϕ′(λ) of the white light emitting device and an equal energy spectrum S′(λ) of the black body radiation with the corresponding color temperature. A degree of similarity R of the equal energy spectrum of the white light emitting device and the equal energy spectrum of the black body radiation satisfies the following formula:





R
=

1
-



Σ

λ
⁢



⁢
i


λ
⁢
n


⁢





S
′

⁡

(
λ
)


-


Φ
′

⁡

(
λ
)








Σ

λ
⁢
i


λ
⁢
n


⁢


S
′

⁡

(
λ
)






,




when λi is 380 nm, λn is 680 nm, R≥85%.

公开(公告)号：US20240006572A1

公开(公告)日：2024-01-04

申请号：US18215980

申请日：2023-06-29

Applicant: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.

Inventor： Kuai QIN ,  Shaojia XIE ,  Bin CAI ,  Fangping HE ,  Zhuang PENG ,  Caineng HUO

IPC: H01L33/62 ,  H01L25/075

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L2933/0066

Abstract: A LED display unit group includes a substrate and an electronic device, where the substrate includes a pad layer, an ink layer and an identification structure, the pad layer is disposed on a first surface of a side of the substrate adjacent to the electronic device; the pad layer includes pad regions and a non-pad region, each of the pad regions includes multiple pads, and the non-pad region includes metal traces; and the ink layer is disposed above the pad layer; each of the multiple pads is configured to secure the electronic device and is electrically connected to the electronic device; the metal traces are configured to connect the multiple pads via the metal traces; and an orthographic projection of the identification structure on the substrate is partially overlapped or staggered with an orthographic projection of the pad regions on the substrate.

公开(公告)号：US20230351974A1

公开(公告)日：2023-11-02

申请号：US18136018

申请日：2023-04-18

Applicant: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.

Inventor： Weineng CHEN ,  Xiang CHEN ,  Dequan ZHENG ,  Zhonghai YAN ,  Fabo LIU ,  Danlei GONG ,  Hua FAN

IPC: G09G3/34

CPC classification number: G09G3/342 ,  G09G2310/08 ,  G09G2320/0626 ,  G09G2300/0426 ,  H01L25/0753

Abstract: Provided are a backlight board and a driving method thereof, a backlight module and a driving method thereof, and a display device. The backlight board includes light-emitting devices arranged in rows and columns and a first connector, where each first pin of the first connector is electrically connected to first electrodes of light-emitting devices in one row, each second pin of the first connector is electrically connected to second electrodes of light-emitting devices in one column; and in one drive cycle, a first drive signal drives light-emitting devices in each row for a duration T/n at different times, and a second drive signal drives light-emitting devices in each column for a duration T/n at different times.

公开(公告)号：US20230216011A1

公开(公告)日：2023-07-06

申请号：US18090665

申请日：2022-12-29

Applicant: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.

Inventor： Libing PAN ,  Zhiguo XIE ,  Man ZHAO ,  Jiapeng ZHANG ,  Danwei LI ,  Pingxia LIANG ,  Fuhai LI

IPC: H01L33/62

CPC classification number: H01L33/62 ,  H01L33/60

Abstract: Provided are a bracket and a LED device. The bracket includes a lead frame and a molded structure connected to the lead frame. The lead frame includes a first lead portion, a second lead portion, and a barrier structure. The first lead portion includes a first base. The second lead portion includes a second base spaced from the first base. A gap between the first base and the second base forms a channel. The barrier structure is disposed on a side of at least one of the first base or the second base facing the channel. The barrier structure is disposed between two opposite ends of the first base and/or the second base and protrudes from the first base and/or the second base, and a length between two opposite ends of the channel is greater than a length of a middle part so that a “wide-narrow-wide” pattern is formed.

公开(公告)号：US20230215999A1

公开(公告)日：2023-07-06

申请号：US18090127

申请日：2022-12-28

Applicant: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.

Inventor： Libing PAN ,  Zhiguo XIE ,  Jiapeng ZHANG ,  Man ZHAO ,  Yinling ZHENG ,  Pingxia LIANG ,  Fuhai LI

IPC: H01L33/60 ,  H01L33/62

CPC classification number: H01L33/60 ,  H01L33/62

Abstract: Provided is an LED device. The LED device includes a bracket and a chip. The bracket includes a lead frame and a molded structure connected to the lead frame. The molded structure includes a chip placement body and a reflective structure. The chip placement body defines an avoidance groove. The reflective structure is a cylindrical structure with an inner through hole. The inner through hole communicates with the avoidance groove. The cylindrical structure is disposed around the periphery of the chip placement body. A first end of the cylindrical structure is formed with an opening communicating with the inner through hole. A second end of the cylindrical structure is connected to the chip placement body in the entire circumferential direction. A circumferential sidewall of the inner through hole forms a reflective surface used for reflecting light.

公开(公告)号：US20230111103A1

公开(公告)日：2023-04-13

申请号：US17936645

申请日：2022-09-29

Applicant: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.

Inventor： Kuai Qin ,  Heng Guo ,  Bin Cai ,  Feng Gu ,  Fangping He

IPC: H01L25/075 ,  H01L33/62 ,  H01L27/15 ,  H01L33/38

Abstract: Provided are an LED display module and a display device. The LED display module includes LED display units and a circuit board. Each LED display unit includes pixel units. Each pixel unit includes LED light-emitting chips. A surface of the circuit board is provided with a circuit layer. The circuit layer includes first wirings and second wirings that do not cross each other. A-electrodes of LED light-emitting chips in an i-th row of pixel units in a current LED display unit and in an i-th row of pixel units in a subsequent LED display unit are electrically connected by one first wiring. B-electrodes of LED light-emitting chips of a same color in a j-th column of pixel units in a current LED display unit and in a j-th column of pixel units in a subsequent LED display unit are electrically connected by one second wiring.

公开(公告)号：US20220384690A1

公开(公告)日：2022-12-01

申请号：US17748493

申请日：2022-05-19

Applicant: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.

Inventor： Kuai Qin ,  Heng Guo ,  Qiang Zhao ,  Hongwen Chen ,  Bin Cai ,  Junyong Wang ,  Nianpu Li ,  Xiaobo Ouyang

IPC: H01L33/48 ,  H01L25/075 ,  H01L33/62 ,  H01L33/00

Abstract: Provided is a light-emitting diode (LED) display assembly. The LED display assembly includes a plurality of chips, a first carrier and a second carrier. Two opposite side surfaces of the first carrier are respectively a first mounting surface and a second mounting surface. The first mounting surface is provided with first pads, and the first pads are connected to the chips. The second mounting surface is provided with first pins, and wires in the first carrier connect the first pads to the first pins. An area of each of the first pins is larger than an area of each of the first pads. The second carrier is provided with a third mounting surface, the third mounting surface is provided with second pads whose number is the same as a number of the first pins, and the second pads are welded to the first pins in one-to-one correspondence.

公开(公告)号：US11502231B2

公开(公告)日：2022-11-15

申请号：US16766716

申请日：2018-08-28

Applicant: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD

Inventor： Ziheng Zeng ,  Zhiguo Xie ,  Fuhai Li ,  Libing Pan

IPC: H01L33/62 ,  H01L25/075 ,  H01L33/48 ,  H01L33/54

Abstract: Some embodiments of the disclosure provide an LED device, an LED lamp and a method for machining a conductive wire of an LED device. The Light-Emitting Diode (LED) device includes at least one LED chip, a bracket and at least one conductive wire. Each of the at least one conductive wire is of a three-dimensional structure and includes a vertical section, first stress cushioning section inclined obliquely upwards, second stress cushioning section inclined obliquely downwards and third stress cushioning section inclined obliquely downwards that are sequentially arranged. A first transition bending section, a second transition bending section and a third transition bending section are sequentially formed between the vertical section, the first stress cushioning section.

公开(公告)号：US20220285429A1

公开(公告)日：2022-09-08

申请号：US17637811

申请日：2020-04-21

Applicant: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.

Inventor： Jinhui ZHANG ,  Mengping TAN ,  Yikai YUAN ,  Cheng LI

IPC: H01L27/15

Abstract: This application provides a light-emitting chip and a light-emitting unit. The light-emitting chip includes light-emitting portions arrayed in n rows and m columns. A surface of the light-emitting chip is provided with n common a-pole electrodes and n×m b-pole electrodes. Each light-emitting portion has an a-pole and a b-pole having an opposite polarity. The b-pole of each light-emitting portion is electrically connected to the b-pole electrode corresponding to the n×m b-pole electrodes, and the a-poles of m light-emitting portions in the ith row are electrically connected to the common a-pole electrode corresponding to the n common a-pole electrodes, where 1≤i≤n, n≥1, m>1, and n, m, and i are integers.

公开(公告)号：US20220214019A1

公开(公告)日：2022-07-07

申请号：US17607045

申请日：2019-12-12

Applicant: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD.

Inventor： Jinhui ZHANG ,  Yikai YUAN ,  Long ZHAO ,  Chuyi LI ,  Cheng LI

IPC: F21S4/28 ,  F21V9/30

Abstract: A white light emitting device, a light bar and a light apparatus. A relative spectrum of the white light emitting device is ϕ(λ). A relative spectrum of a black body radiation with a corresponding color temperature is S(λ). An area normalization is performed on φ(λ) and S(λ) to convert an equal energy spectrum φ′(λ) of the white light emitting device and an equal energy spectrum S′(λ) of the black body radiation with the corresponding color temperature. A degree of similarity R of the equal energy spectrum of the white light emitting device and the equal energy spectrum of the black body radiation satisfies the following formula: R = 1 - Σ λ ⁢ ⁢ i λ ⁢ n ⁢  S ′ ⁡ ( λ ) - Φ ′ ⁡ ( λ )  Σ λ ⁢ i λ ⁢ n ⁢ S ′ ⁡ ( λ ) , when λi is 380 nm, λn is 680 nm, R≥85%.