摘要:
A sheet of brittle material, such as glass, flat or bowed, is separated along a score line by applying vibration energy through a probe into previously scored sheet material. The separation time is less than 1 second with smooth edge quality. The brittle material can be in the form of a moving ribbon of glass sheet, where a vibrational load is applied transverse to the score line to enhance crack propagation along the score line. A controller operates the probe at selected vibration frequencies, amplitudes, contact velocities, contact forces of impact, alignment with the score line, and the like, depending on material properties and structure, and depending on optimal process parameters.
摘要:
Experimental data is presented which shows that laser scoring of glass sheets (112) with existing techniques produces unacceptable levels of residual stress in the separated sheets as the scoring speed is increased. Methods for solving this problem are disclosed which employ elongated and, preferably, asymmetrically-truncated laser beams (13). The methods allow glass sheets (112) to be scored at speeds of 1000 mm/s and above with low levels of residual stress, e.g., levels of residual stress which are less than or equal to 500 psi. Such low levels of residual stress translate into low levels of distortion during the manufacture of display panels (e.g., LCD panels) as well as in improved properties of the separated edges. The methods can be used with glasses of various types including glasses having low coefficients of thermal expansion.
摘要:
Experimental data is presented which shows that laser scoring of glass sheets (112) with existing techniques produces unacceptable levels of residual stress in the separated sheets as the scoring speed is increased. Methods for solving this problem are disclosed which employ elongated and, preferably, asymmetrically-truncated laser beams (13). The methods allow glass sheets (112) to be scored at speeds of 1000 mm/s and above with low levels of residual stress, e.g., levels of residual stress which are less than or equal to 500 psi. Such low levels of residual stress translate into low levels of distortion during the manufacture of display panels (e.g., LCD panels) as well as in improved properties of the separated edges. The methods can be used with glasses of various types including glasses having low coefficients of thermal expansion.
摘要:
An apparatus for finishing a glass sheet comprising a pair of fluid bearings having bearing surfaces in opposing relation, the bearing surfaces spaced apart to define a channel for receiving the glass sheet, each bearing surface having a plurality of pores through which jets are introduced into the channel, the pores positioned on the bearing surface such that the jets produce a uniform fluid pressure across the bearing surface.
摘要:
Methods of using a laser to separate a glass sheet is presented that employs an elongated and, preferably, asymmetrically-truncated laser beam. The methods allow glass sheets suitable for use in modern display applications to be separated at speeds up to about 200 mm/s with low levels of residual stress, e.g., levels of residual stress which are less than or equal to 100 psi, and preferably less than 50 psi. Glasses with high coefficients of thermal expansion (e.g. greater than about 35×10−7/° C.) maybe separated at faster speeds. Such low levels of residual stress translate into low levels of distortion during the manufacture of display panels (e.g., LCD panels) as well as in improved properties (geometry, strength, defect-free etc.) of the separated edges. The methods can be used with glasses of various types including glasses having high coefficients of thermal expansion and also with glass sheets of different thickness.
摘要:
A conformable nosing device is described herein which conforms to have a bowed shape that substantially matches a bowed shape of a glass sheet and which engages the glass sheet to help minimize the motion of the glass sheet and to help reduce the stress within the glass sheet while the glass sheet is being scored and separated into individual glass sheets. In addition, the conformable nosing device can include a passive nosing device which can be controlled to further help minimize the motion of the glass sheet while the glass sheet is being scored and separated into individual glass sheets.
摘要:
Methods of using a laser to separate a glass sheet is presented that employs an elongated and, preferably, asymmetrically-truncated laser beam. The methods allow glass sheets suitable for use in modern display applications to be separated at speeds up to about 200 mm/s with low levels of residual stress, e.g., levels of residual stress which are less than or equal to 100 psi, and preferably less than 50 psi. Glasses with high coefficients of thermal expansion (e.g. greater than about 35×10−7/° C.) may be separated at faster speeds. Such low levels of residual stress translate into low levels of distortion during the manufacture of display panels (e.g., LCD panels) as well as in improved properties (geometry, strength, defect-free etc.) of the separated edges. The methods can be used with glasses of various types including glasses having high coefficients of thermal expansion and also with glass sheets of different thickness.
摘要:
A conformable nosing device is described herein which conforms to have a bowed shape that substantially matches a bowed shape of a glass sheet and which engages the glass sheet to help minimize the motion of the glass sheet and to help reduce the stress within the glass sheet while the glass sheet is being scored and separated into individual glass sheets. In addition, the conformable nosing device can include a passive nosing device which can be controlled to further help minimize the motion of the glass sheet while the glass sheet is being scored and separated into individual glass sheets.
摘要:
A method of conveying a glass substrate utilizing an improved non-contact lifting device. The non-contact lifting device employs the Bernoulli effect to create a pressure differential across the glass substrate. The Bernoulli device of the present invention comprises an increased holding or lifting power, and reduces the opportunity for contact between the device and the glass substrate if the device is tilted with respect the plane of the glass substrate surface.
摘要:
A method and an apparatus that execute executable codes to install a persistent object from a storage into an application server to access remote services in an EIS are described. The executable codes are based on relational properties for mapping an API (Application Programming Interface) function of an EIS to an object of a cross-platform connection framework coupling the EIS with the application server. The application server is enabled to access the API function of the EIS via the persistent object as part of the cross-platform connection framework.