Yiwen CHANG

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Dongguan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Backlight module and display screen
- Patent number 11,914,247
- Issue date Feb 27, 2024
- Huawei Technologies Co., Ltd.
- Shihong Ouyang
- G02 - OPTICS
Information Patent Grant
Display apparatus and electronic device
- Patent number 11,868,008
- Issue date Jan 9, 2024
- Huawei Technologies Co., Ltd.
- Yiwen Chang
- G02 - OPTICS
Information Patent Grant
Backlight module, display, and mobile terminal
- Patent number 11,320,696
- Issue date May 3, 2022
- Huawei Technologies Co., Ltd.
- Shihong Ouyang
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Backlight Module and Display Screen
- Publication number 20230305332
- Publication date Sep 28, 2023
- Huawei Technologies Co, Ltd.
- Shihong Ouyang
- G02 - OPTICS
Information Patent Application
OPTICAL MODULE, BACKLIGHT CONTROL METHOD, AND DISPLAY APPARATUS
- Publication number 20230258976
- Publication date Aug 17, 2023
- Huawei Technologies Co., Ltd
- Yiwen CHANG
- G02 - OPTICS
Information Patent Application
DISPLAY APPARATUS AND ELECTRONIC DEVICE
- Publication number 20230161198
- Publication date May 25, 2023
- Huawei Technologies Co., Ltd
- Yiwen CHANG
- G02 - OPTICS
Information Patent Application
Backlight Module, Display, And Mobile Terminal
- Publication number 20210255507
- Publication date Aug 19, 2021
- Huawei Technologies Co., Ltd
- Shihong OUYANG
- G02 - OPTICS