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US 7,710,706 B2Granted
Apparatus and method for demagnetizing shadow mask
AssigneeLG Display Co., Ltd.
InventorsChoong-Keun Yoo, Kang-Ju Lee
Life of this patent
Estimating the term…
Abstract
An apparatus for demagnetizing a shadow mask includes a shadow mask stocker, a cassette in the shadow mask stocker, wherein at least one shadow mask is disposed in the cassette, and a demagnetizing device that generates a magnetic field by an alternating current (AC), thereby removing magnetism of the at least one shadow mask.
Claims14
An apparatus for demagnetizing a shadow mask, the apparatus comprising:
- a shadow mask stocker;
- a cassette in the shadow mask stocker, wherein at least one shadow mask is disposed in the cassette;
- and
- a demagnetizing means that generates a magnetic field by an alternating current (AC), thereby removing magnetism of the at least one shadow mask.
1 more element
A method of demagnetizing a shadow mask, the method comprising:
- disposing at least one shadow mask in a shadow mask stocker having a demagnetizing means therein;
- applying an alternating current (AC) to the demagnetizing means, thereby generating a magnetic field;
- and
- removing magnetism of the at least one shadow mask by the magnetic field.
1 more element
A method for fabricating an electronic device using a shadow mask, the method comprising:
- demagnetizing the shadow mask, the demagnetizing the shadow mask step comprising disposing at least one shadow mask in a shadow mask stocker having a demagnetizing means therein, applying an alternating current (AC) to the demagnetizing means, thereby generating a magnetic field, and removing magnetism of the at least one shadow mask by the magnetic field.
Dependencies are inferred from the claim text.