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US 7,742,144 B2Granted
Apparatus for rubbing alignment layer
AssigneeLG Display Co., Ltd.
InventorsHyun-Ho Song, Byoung-Chul Choi, Chang-Soo Na
Life of this patent
Estimating the term…
Abstract
An apparatus for rubbing an alignment layer by which a defective rubbing due to a load can be prevented by installing a head at an upper portion of a frame, the apparatus including a frame, a rubbing table to which a substrate having an alignment layer is loaded, a rubbing roll disposed at an upper portion of the rubbing table inside the frame, and a head disposed at an upper portion of the frame that supports the rubbing roll.
Claims13
An apparatus for rubbing an alignment layer comprising:
- a frame having an upper surface;
- a rubbing table to which a substrate having an alignment layer is loaded;
- a rubbing roll disposed at an upper portion of the rubbing table inside the frame, the rubbing roll being rotated centering around a rotational shaft to rub the alignment layer on the substrate;
- a head disposed on the upper surface of the frame, the head being rotating;
- a guiding unit disposed at the regions corresponding to both end sides of the head between the frame and the head to thus guide the head to be rotated;
- a supporting member positioned between the head and the rubbing roll to thus fix the rubbing roll to the head;
- and
- a shaft for connecting the supporting member to the head, the shaft including a first shaft at the central portion of the head and at least two second shafts at both sides of the first shaft, the first shaft and the second shafts being perpendicular to the rotational shaft of the rubbing roll,
- wherein a space is formed in the upper surface of the frame so that the shaft is connected to the head through the space and is moving in the space,
- wherein the head and the rubbing roll are rotated centering around the first shaft in plane of the rubbing table.
7 more elements
An apparatus for rubbing an alignment layer comprising:
- a frame having an upper surface;
- a rubbing table to which a substrate having an alignment layer is loaded;
- a rubbing roll disposed at an upper portion of the rubbing table inside the frame, the rubbing roll being rotated centering around a rotational shaft to rub the alignment layer on the substrate;
- a head disposed on the upper surface of the frame that supports the rubbing roll;
- a guiding unit disposed at the region corresponding to both end sides of the head between the frame and the head to thus guide the head to be rotated;
- a supporting member positioned between the head and the rubbing roll to thus fix the rubbing roll to the head;
- a shaft for connecting the supporting member to the head through a space formed in the frame, the shaft including a first shaft at the central portion of the head and at least two second shafts at both sides of the first shaft, the first shaft and the second shafts being perpendicular to the rotational shaft of the rubbing roll;
- and
- a first motor for rotating the head centering around the first shaft in plane of the rubbing table,
- wherein the second shafts are moving in accordance with the rotation of the head.
7 more elements
Dependencies are inferred from the claim text.