Dry box and control method thereof, and preparation method of organic electroluminescent device
AssigneeBoe Technology Group Co., Ltd.
InventorsChunjing Hu, Wenjun Hou
Life of this patent
Estimating the term…
Abstract
A dry box and a control method therefor, and a preparation method for an organic electroluminescent device are provided. The dry box includes a cavity and a hot plate arranged in the cavity. The hot plate includes a plurality of heating spots, the plurality of heating spots being arranged towards the hot plate to support a surface of a device to be dried, and some of the temperature of the plurality of heating spots being different and the heating spots being insulated from each other.
Claims15
A dry box, comprising a cavity and a hot plate provided in the cavity,
- wherein the hot plate comprises a plurality of heating spots, the plurality of heating spots being arranged towards the hot plate to support a surface of a device to be dried, and some of temperatures of the plurality of heating spots being different from each other and the heating spots being insulated from each other;
- wherein the hot plate comprises a substrate and a plurality of independent heating sources arranged in array on the substrate, the substrate being made of a heat insulating material;
- and
- the heating spots are respectively top portions of the heating sources on the hot plate, or points or regions respectively corresponding to orthographic projections of the heating sources on the hot plate.
A method of controlling a dry box, the dry box comprising a cavity and a hot plate provided in the cavity, wherein the hot plate comprising a plurality of heating spots, the plurality of heating spots being arranged towards the hot plate to support a surface of the device to be dried, and the plurality of heating spots having different temperatures from each other and are insulated from each other, the hot plate comprises a substrate and a plurality of independent heating sources arranged in array on the substrate, the substrate being made of a heat insulating material, and the heating spots are respectively top portions of the heating sources on the hot plate, or points or regions respectively corresponding to orthographic projections of the heating sources on the hot plate;
- the control method comprising:
- controlling a heating temperature of each of the plurality of heating spots, such that each pattern to be dried in the device to be dried has a same evaporation rate in the dry box;
- and
- controlling the movement of the heating sources, such that the heating sources moves in a direction away from the substrate.
A method of preparing an organic electroluminescent device by using a dry box, wherein the dry box comprises a cavity and a hot plate provided in the cavity, wherein the hot plate comprises a plurality of heating spots, the plurality of heating spots being arranged towards the hot plate to support a surface of a device to be dried, and some of the temperatures of the plurality of heating spots being different from each other and the heating spots being insulated from each other;
- the hot plate comprises a substrate and a plurality of independent heating sources arranged in array on the substrate, the substrate being made of a heat insulating material;
- and the heating spots are respectively top portions of the heating sources on the hot plate, or points or regions respectively corresponding to orthographic projections of the heating sources on the hot plate;
- wherein the method comprises:
- providing a substrate;
- forming a pattern to be dried of the organic electroluminescent device on the substrate;
- and
- placing the substrate on which the pattern to be dried is formed on the hot plate of the dry box in an alignment manner for drying.
Dependencies are inferred from the claim text.