Patent ID: 11882753
Assignee: LG DISPLAY CO., LTD.
Field: nan (nan)
Classification: CPC H  G | IPC H

Claim 15:
16. A method for manufacturing a display panel, wherein the display panel includes a display area in which an image is capable of being displayed,
wherein a portion of the display area is a light sensing area overlapping an optical sensor, and a remaining portion of the display area other than the light sensing area is a general area,
wherein the display area includes:
a plurality of sub-pixel areas disposed in the general area and the light sensing area for emitting light for displaying the image; and
a plurality of transmissive pixel areas disposed in the light sensing area to transmit the light therethrough,

wherein the plurality of transmissive pixel areas are alternately arranged with the sub-pixel areas in the light sensing area, and
wherein each of the plurality of sub-pixel areas corresponds to one of at least two different colors,
wherein the method comprises:
disposing a first electrode corresponding to each of the plurality of sub-pixel areas;
disposing a first hole injection layer on the first electrode;
disposing a first hole transport layer on the first hole injection layer;
disposing an auxiliary light-emissive layer corresponding to a sub-pixel area of each color on the first hole transport layer in the light sensing area, using a first mask covering a remaining area of the display area excluding the sub-pixel area of each color included in the light sensing area;
sequentially disposing a second electron transport layer, a charge generation layer, and a second hole transport layer on the auxiliary light-emissive layer in the light sensing area, using a second mask covering a remaining area of the display area except for the light sensing area;
disposing a thickness adjustment layer on the first hole transport layer in the general area, using a third mask covering a remaining area of the display area other than the general area;
disposing a main light-emissive layer corresponding to the sub-pixel of each color on the thickness adjustment layer in the general area and the second hole transport layer in the light sensing area, using a fourth mask covering a remaining area of the display area excluding the sub-pixel area of each color;
disposing a first electron transport layer on the main light-emissive layer; and
disposing a second electrode on the first electron transport layer.