Reflection-transmission type liquid crystal display device and method for manufacturing the same
First Claim
1. A method for manufacturing a liquid crystal display device, the method comprising the steps of:
- forming a transparent conductive layer on a substrate having a display region and a pad region located in a periphery of the display region;
patterning the transparent conductive layer to form a transparent electrode on the display region and a pad electrode on the pad region;
forming a buffer metal layer directly on the transparent electrode;
forming a reflective layer on the buffer metal layer;
andpatterning the reflective layer to form a reflective electrode.
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Accused Products
Abstract
Disclosed are a liquid crystal display (LCD) device and a method for manufacturing the LCD device. The LCD device has a substrate including a display region and a pad region located in a periphery of the display region, the display region having a transparent electrode, the pad region having a pad electrode. The transparent electrode and the pad electrode are formed from the same layer. A reflective electrode having a transmission window exposing a portion of the transparent electrode is formed on the transparent electrode. The manufacturing process can be simplified because the transparent electrode is directly connected to the reflective electrode. Since the pad electrode is formed of the same layer as the transparent electrode, no metal corrosion occurs to thereby increase the pad reliability during COG bonding.
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Citations
22 Claims
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1. A method for manufacturing a liquid crystal display device, the method comprising the steps of:
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forming a transparent conductive layer on a substrate having a display region and a pad region located in a periphery of the display region; patterning the transparent conductive layer to form a transparent electrode on the display region and a pad electrode on the pad region; forming a buffer metal layer directly on the transparent electrode; forming a reflective layer on the buffer metal layer; and patterning the reflective layer to form a reflective electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for manufacturing a liquid crystal display device, the method comprising the steps of:
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forming a transparent conductive layer on a substrate having a display region and a pad region located in a periphery of the display region; forming a reflective layer on the substrate having the transparent conductive layer; patterning the reflective layer to form a reflective electrode; and patterning the transparent conductive layer to form a transparent electrode on the display region and a pad electrode on the pad region simultaneously, wherein the reflective electrode, the transparent electrode, and the pad electrode are formed using one mask. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for manufacturing a liquid crystal display device, the method comprising the steps of:
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forming a transparent conductive layer on a substrate having a display region and a pad region located in a periphery of the display region; depositing a barrier metal layer on the transparent conductive layer; forming a reflective layer on the substrate having the transparent conductive layer and the barrier metal layer; and patterning the reflective layer to form a reflective electrode. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification