Patent ID: 9711622
Date: 2017-07-18
CPC Classifications: G02F,H01L

Claim:
1. A manufacturing method of a display apparatus comprising: a counter substrate including a light shielding layer defining transmissive regions where light passes through and non-transmissive regions where light does not pass through; and an active matrix substrate including a pixel area where pixels are arranged in matrix, each of the pixels including the transmissive region and the non-transmissive region both defined by the light shielding layer, the manufacturing method comprising: forming source and drain portions by forming islands out of a polycrystalline silicon film on a transparent substrate and doping impurities to both outsides of a portion to be a channel portion, in each of the islands; forming a gate insulating film on the polycrystalline silicon film; forming gate electrodes on the gate insulating film; forming light doped drain (LDD) portions located between the neighboring source and drain portions by doping impurities into the islands by using the gate electrodes as masks; forming interlayer insulating films on the gate electrodes; forming a conductive film as a drain layer on the interlayer insulating films; forming the transmissive regions by performing dry etching by using a first resist pattern for separating the conductive film, to form patterned conductive films, the transmissive regions excluding the polycrystalline silicon film, the gate electrodes and the patterned conductive films when being viewed in a normal direction of the transparent substrate; and performing dry etching by using a second resist pattern for separating again the conductive film in an area between the patterned conductive films, the second resist pattern including openings not overlapping with the transmissive regions and with regions laid over the LDD portions.