| 发明名称 |
PROJECTION DEVICE AND CONTROL METHOD THEREOF |
| 摘要 |
A control method of a projection device is provided. The control method comprises following steps. The light source generates a light beam towards a micro electro mechanical system (MEMS) module. The scan driver outputs a first direction scan signal and a second direction scan signal to the MEMS module for enabling the MEMS module to reflect the light beam to a projection surface. The first direction control system of the MEMS module is a second-order system and has a resonance frequency, and the first direction scan signal has a frequency within a frequency range containing the resonance frequency. |
| 申请公布号 |
US2015227031(A1) |
申请公布日期 |
2015.08.13 |
| 申请号 |
US201514597865 |
申请日期 |
2015.01.15 |
| 申请人 |
LITE-ON TECHNOLOGY CORPORATION |
发明人 |
HSIAO Chun-Lai |
| 分类号 |
G03B21/14;G03B21/28 |
主分类号 |
G03B21/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A control method of a projection device, wherein the projection device comprises a light source, a scan driver and a micro electro mechanical system (MEMS) module, and the control method of a projection device comprises:
generating a light beam towards the MEMS module by the light source; and outputting a first direction scan signal and a second direction scan signal to the MEMS module by the scan driver for enabling the MEMS module to reflect the light beam to a projection surface; wherein a first direction control system of the MEMS module is a second-order system and has a resonance frequency, and a frequency of the first direction scan signal is within a frequency range containing the resonance frequency. |
| 地址 |
Taipei TW |
