Display device and manufacturing method thereof
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsDaiki NAKAMURA, Kazuhiko FUJITA
Life of this patent
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Abstract
When a base film used in a flexible display panel is bonded to a resin member for fixing the base film that is curved, the base film has creases by an environmental change such as temperature due to difference in linear expansion coefficient before and after a thermal shock. A buffer plate that is thin enough to be bent is provided between the base film used in a flexible display panel and the resin member. With the use of heat dissipation effect and heat equalization effect of the buffer plate, a structure around the panel capable of resisting the environmental change can be provided.
Claims10
A display device comprising:
- an organic light-emitting element over a film comprising a first organic resin material;
- a member comprising a second organic resin material having a different linear expansion coefficient from that of the first organic resin material;
- and
- a buffer plate,
- wherein the member has a curved surface partly and has regions with different thicknesses,
- wherein the buffer plate is provided on the curved surface of the member, and
- wherein the film is provided on the buffer plate.
A display device comprising:
- an organic light-emitting element over a film comprising an organic resin material;
- a terminal electrically connected to the organic light-emitting element;
- a flexible printed circuit board in contact with and connected to the terminal;
- and
- a printed circuit board connected to the flexible printed circuit board,
- wherein one part of the film overlaps with a member having a flat surface with a buffer plate provided therebetween and is substantially parallel to the printed circuit board,
- wherein the other part of the film overlaps with a guide portion,
- wherein a flat surface of the guide portion is substantially perpendicular to the flat surface of the member,
- wherein the flat surface of the guide portion overlaps with a portion where the flexible printed circuit board is in contact with the terminal, and
- wherein a curved surface of the guide portion has a curvature radius of 5 mm or more.
Dependencies are inferred from the claim text.