Coretronic Corporation

Jeng-An Liao

Chen-Cheng Chou

Fu-Shun Kao

Yu-Chi Wu

Hsin-Chang Huang

Hung-Lin Chen

Wei-Tai Ko

You-Xuan Kuo

A projection device and a driving method of the projection device are provided. The projection device includes a signal processing circuit, a driving circuit, a light-emitting module, and a discharge circuit. The signal processing circuit is configured to provide a modulation signal and a first signal. The driving circuit is coupled to the signal processing circuit and a driving node. The driving circuit is configured to generate a driving signal to the driving node according to the modulation signal. The light-emitting module is coupled to the driving circuit through the driving node. The light-emitting module is configured to receive the driving signal from the driving node to accordingly emit a laser beam. The discharge circuit is coupled to the signal processing circuit and the driving node. The discharge circuit is configured to provide a reference voltage to the driving node according to the first signal.

Projection device and driving method of projection device

A power supply circuit module and a power supply judgment method thereof are provided. A power supply circuit supplies power to an electronic device coupled to the power supply circuit module. A plugging detection circuit detects the connection state of the electronic device. A judgment circuit switches the electronic device to connect to a first signal channel or a second signal channel in response to whether the electronic device provides device information of the electronic device within a preset time since the electronic device is coupled to the power supply circuit module. The power supply judgment method of the invention automatically sets signal channel configurations corresponding to different external devices, thereby greatly improving the convenience of use.

Power supply circuit module and power supply judgment method thereof

A projection device, a light source system and a projection method thereof are provided. A portion of the light-emitting units are controlled to provide a light beam as the first light beam. It is detected whether characteristic parameters of the light-emitting units providing the light beam reach a preset value. When the preset value is not reached, the light-emitting units providing the light beam are disabled, and the remaining light-emitting units are controlled to provide the back-up light beam as the first light beam. A portion of the first light beam is converted into a second light beam. The first light beam of which the wavelength is not converted and the second light beam are combined to generate an illumination beam. The illumination beam is converted into an image beam. The image beam is converted into a projection beam.

Projection device and light source system and projection method thereof

Growing community of inventors

Hsin-Chu, Taiwan

Jeng-An Liao