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US 2009/0215347 A1Published application
Test apparatus for liquid crystal display device and test method using the same
AssigneeLG Display Co., Ltd.
InventorChae-Hyun Lee
Life of this patent
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Abstract
A test apparatus for a liquid crystal display device includes: a stage having a substrate thereon; a plurality of light emitting diodes (LEDs) on the stage and supplying a light to the substrate; a heating nozzle supplying a hot air to the substrate; a needle applying a test signal to the substrate; and a microscope inspecting the needle and the substrate.
Claims14
A test apparatus for a liquid crystal display device, comprising:
- a stage having a substrate thereon;
- a plurality of light emitting diodes (LEDs) on the stage and supplying a light to the substrate;
- a heating nozzle supplying a hot air to the substrate;
- a needle applying a test signal to the substrate;
- and
- a microscope inspecting the needle and the substrate.
3 more elements
A test method for a liquid crystal display device, comprising:
- loading a substrate on a stage;
- supplying a light from a plurality of light emitting diodes (LEDs) in the stage to the substrate;
- aligning a needle and a microscope to pads corresponding to defects of the substrate;
- supplying a hot air from a heating nozzle adjacent to the needle to the substrate;
- applying test signals to the pads through the needle;
- and
- measuring result signals through the needle.
4 more elements
Dependencies are inferred from the claim text.