Liquid crystal display device and method of forming the same
AssigneeLG Electronics Inc.
InventorWoo-Sup Shin
Life of this patent
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Abstract
A liquid crystal display device includes a substrate, a thin film transistor including a gate line, a source electrode, and a drain electrode formed on the substrate, a first protective layer formed on the thin film transistor, a black matrix pattern formed on the first protective layer, a second protective layer covering the black matrix pattern, and a pixel electrode connected to the drain electrode of the thin film transistor, wherein the first protective layer is selectively removed using the black matrix pattern as a mask to expose the pixel electrode, and wherein the second protective layer is formed using a shadow mask.
Claims26
A light blocking device in a liquid crystal display device, the liquid crystal display device having a plurality of pixel electrodes, a plurality of data lines formed on a substrate, and areas not overlapping with the plurality of pixel electrodes and the plurality of data lines, a remaining region being defined as a portion of the non-overlapping areas, the light blocking device comprising:
- a first protective layer, covering at least the remaining region, and being of a first size;
- and
- a black matrix covering an area of a second size on the first protective layer;
- wherein the first size equals the second size.
A method of forming a black matrix in a liquid crystal display device, the liquid crystal display device having a plurality of pixel electrodes, a plurality of data lines formed on a substrate, and areas not overlapping with the plurality of pixel electrodes and the plurality of data lines, a remaining region being defined as a portion of the non-overlapping areas, the method comprising the steps of:
- a) forming a first protective layer on at least the remaining region;
- b) forming a black matrix layer on the first protective layer;
- c) selectively removing portions of the black matrix layer and portions of the first protective layer, wherein a black matrix is formed when the portions of the black matrix layer are selectively removed;
- and
- d) forming a second protective layer on the black matrix, the step d) including the step of using a shadow mask to selectively control where the second protective layer is formed.
A liquid crystal display device comprising:
- a plurality of data lines formed on a substrate;
- a plurality of pixel electrodes formed between the plurality of data lines;
- a plurality of remaining areas not overlapping with the plurality of pixel electrodes and the plurality of data lines;
- a first protective layer, covering at least a portion of the plurality of remaining areas, and being of a first size;
- a black matrix covering an area of a second size on the first protective layer;
- wherein the first size equals the second size.
Dependencies are inferred from the claim text.