Seal hardening furnace of liquid crystal display device having rack bar
AssigneeLG. Philips LCD Co., Ltd.
InventorsMoo-Yeol Park, Jong-Won Kim
Life of this patent
Estimating the term…
Abstract
A seal hardening furnace is presented in which seal lines in a liquid crystal display panel are hardened. The seal hardening furnace includes a cassette having a rack bar structure. The rack bar structure has rack bars for supporting the substrate along one direction and rack bar supports at ends of the rack bars that support the rack bars. The rack bars have air discharge openings therein. An air injecting passage is connected to the rack bar supports. An air supply unit supplies air through the air injecting passage and through the discharge openings to support the substrate thereon.
Claims27
A seal hardening furnace comprising:
- a cassette including rack bars for supporting a substrate and having discharge openings therein, a first rack bar support for supporting the rack bars in an X axis direction, an injecting passage connected to the first rack bar support, and a supply unit for supplying gas through the injecting passage;
- and
- a heating unit for heating the substrate.
A seal hardening furnace comprising:
- a plurality of first rack bars for supporting a substrate, the first rack bars parallel to one another;
- a plurality of second rack bars making pairs with the plurality of first rack bars;
- a first rack bar support for supporting a front end of the first rack bars;
- and
- a second rack bar driving unit installed at a rear end of each of the second rack bars.
A seal hardening furnace comprising:
- a cassette including rack bars, a rack bar support disposed at an end of the rack bars that supports the rack bars, and a secondary support mechanism that increases uniformity of support for substrates disposed on the rack bars beyond support provided by the rack bars alone;
- and
- a heating unit for heating the substrate.
Dependencies are inferred from the claim text.