Display panel, manufacturing method thereof and display device
AssigneesChengdu Boe Optoelectronics Technology Co., Ltd., Boe Technology Group Co., Ltd.
InventorsXuwu Hu, Yangsheng Liu, Mengxia Kong, Yuheng Qiu, Wei Lin
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Abstract
A display panel, a manufacturing method thereof and a display device are provided. The display panel includes a display area and a hole forming area, where the display area surrounds the hole forming area, and an organic material layer is provided in the hole forming area so that a height difference between the hole forming area and the display area is less than a threshold value of 4 um.
Claims4
A method of manufacturing a display panel, wherein the display panel comprises a display area and a hole forming area, the display area surrounds the hole forming area;
- the display area comprises:
- a thin film transistor array layer on a base substrate, a planarization layer covering the thin film transistor array layer, and a pixel defining layer on the planarization layer;
- the method comprises:
- forming a second organic material sub-layer in the hole forming area and the planarization layer in the display area through a single patterning process;
- forming a first organic material sub-layer in the hole forming area and the pixel defining layer in the display area through a single patterning process,
- wherein the first organic material sub-layer and the second organic material sub-layer form an organic material layer,
- wherein the forming the second organic material sub-layer in the hole forming area and the planarization layer in the display area through the single patterning process comprises:
- forming a photosensitive organic material layer;
- exposing the photosensitive organic material layer by using a gray-tone mask, wherein the gray-tone mask comprises a partially light-transmitting pattern corresponding to the display area and an opaque pattern corresponding to the hole forming area;
- performing a development process to form the second organic material sublayer in the hole forming area and the planarization layer in the display area, wherein a thickness of the second organic material sub-layer is greater than a thickness of the planarization layer in the display area.
A method of manufacturing a display panel, wherein the display panel comprises a display area and a hole forming area, the display area surrounds the hole forming area;
- the display area comprises:
- a thin film transistor array layer on a base substrate, a planarization layer covering the thin film transistor array layer, and a pixel defining layer on the planarization layer;
- the method comprises:
- forming a second organic material sub-layer in the hole forming area and the planarization layer in the display area through a single patterning process;
- forming a first organic material sub-layer in the hole forming area and the pixel defining layer in the display area through a single patterning process,
- wherein the first organic material sub-layer and the second organic material sub-layer form an organic material layer,
- wherein the forming the first organic material sub-layer in the hole forming area and the pixel defining layer in the display area through the single patterning process comprises:
- forming a photosensitive organic material layer;
- exposing the photosensitive organic material layer by using a gray-tone mask, wherein the gray-tone mask comprises a partially light-transmitting pattern corresponding to the display area and an opaque pattern corresponding to the hole forming area;
- performing a development process to form the first organic material sublayer in the hole forming area and the pixel defining layer in the display area, wherein a thickness of the first organic material sub-layer is greater than a thickness of the pixel defining layer in the display area.
Dependencies are inferred from the claim text.