Asymmetric travel for mems light modulators
A light modulation device and light source technology, applied in the direction of instruments, optics, optical components, etc., can solve the problems of increasing the amount of time, reducing the switching speed of light modulators, increasing the travel distance of mechanical light modulators, etc.
Inactive Publication Date: 2017-03-08
SNAPTRACK
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Problems solved by technology
However, increasing the aperture ratio increases the travel distance of the mechanical light modulator across the larger aperture, thereby increasing the amount of time required for the mechanical light modulator to move from one position to another
This can cause an undesirable reduction in light modulator switching speed and negatively affect the performance of the display
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[0029] The following description is for certain embodiments in order to describe the innovative aspects of the invention. However, one of ordinary skill in the art will readily recognize that the teachings herein can be applied in many different ways. The described implementations can be implemented in any device, apparatus, or system that can be configured to display images, either in motion (eg, video) or still (eg, still images), as well as text, graphics, or images. More specifically, it is contemplated that the described implementations may be included in or associated with various electronic devices such as, but not limited to, a mobile telephone, a multimedia Internet enabled cellular telephone, a mobile television receiver, wireless devices, smartphones, devices, personal data assistants (PDAs), wireless e-mail receivers, handheld or portable computers, netbooks, notebook computers, smartnote computers, tablet computers, printers, photocopiers, scanners, fax devices, ...
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The present invention provides systems, apparatus, and methods for increasing the aperture ratio of a display by increasing the total travel distance of corresponding light modulation bodies in the display while maintaining fast switching speeds. Increasing the total travel distance allows for larger aperture ratios in the display, which provides greater power savings and increased display brightness. The total travel distance of the light modulating body includes the distance traveled by the body from an open position to a closed position and from a closed position to an open position. In one example, the travel distance of a light modulating body (eg, any of the light modulators described above) is asymmetric: from a neutral position, the body is farther in a first direction than in a second direction. Travel greater distances.
Description
technical field [0001] The present invention relates to the field of electromechanical devices, and more particularly to light modulating bodies for displays. Background technique [0002] Electromechanical systems (EMS) include devices having electrical and mechanical elements, actuators, transducers, sensors, optical components such as mirrors and optical films, and electronics. EMS devices or elements can be fabricated at various scales, including but not limited to microscale and nanoscale. For example, microelectromechanical systems (MEMS) devices may include structures having sizes in the range from about 1 micron to hundreds of microns or more. Nanoelectromechanical systems (NEMS) devices can include structures having sizes smaller than 1 micron, including, for example, sizes smaller than hundreds of nanometers. Electromechanical elements may be created using deposition, etching, lithography, or other micromachining processes that remove portions of substrates and / o...
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IPC IPC(8): G02B26/02G02B26/08
CPCG09F9/372G09G2300/0842G02B26/02G09G3/3433G02B26/0841
Inventor 乔伊斯·H·吴吉安鲁·席
Owner SNAPTRACK