Folding type display apparatus and electric equipment
View Patent ↗A folding type display apparatus, which includes a first flexible substrate including a laminate of an inorganic film and an organic film; a sheet-shaped display section formed over the first flexible substrate and having flexibility, the sheet-shaped display section including a plurality of organic electro luminescence (EL) elements and a plurality of switching elements; and a second flexible substrate including a laminate of an inorganic film and an organic film and formed over the sheet-shaped display section, wherein the first and second flexible substrates include a plurality of the laminates respectively, and the inorganic films and the organic films are alternately laminated in the plurality of laminates.
1. A folding type display apparatus, comprising:
a first flexible substrate comprising two laminates, each comprising an inorganic film and an organic film;
a sheet-shaped display section formed over the first flexible substrate and having flexibility, the sheet-shaped display section including a plurality of organic electro luminescence (EL) elements and a plurality of switching elements;
a second flexible substrate comprising two laminates, each comprising an inorganic film and an organic film and formed over the sheet-shaped display section; and
a touch screen formed on the second flexible substrate, wherein
the inorganic films and the organic films of the two laminates of each of the first flexible substrate and the second flexible substrate are alternately laminated,
an air layer is formed between the second flexible substrate and the touch screen above each of the organic EL elements, and
an uppermost organic film of an uppermost laminate of the second flexible substrate functions as a light extraction layer.
2. The folding type display apparatus according to claim 1 ,
wherein the plurality of switching elements are formed on the first flexible substrate;
each of the organic EL elements is formed on each of the switching elements respectively; and
the second flexible substrate is formed on the organic EL elements.
3. The folding type display apparatus according to claim 2 ,
wherein each of the switching elements is a driving Thin Film Transistor (TFT) configured to supply a current corresponding to light emitting gradation to each of the organic EL elements respectively.
4. The folding type display apparatus according to claim 3 ,
wherein conductance of each of the driving TFTs is changed in an analog manner during suppling the current.
5. The folding type display apparatus according to claim 1 ,
wherein the uppermost organic film of the uppermost laminate of the second flexible substrate is in contact with the touch screen above an element for separating the plurality of organic EL elements, and
light emitted from the plurality of organic EL elements passes through the air layer and exits outside.
6. The folding type display apparatus according to claim 1 ,
wherein surfaces of the plurality of organic EL elements are parallel to a surface of the touch screen.
7. The folding type display apparatus according to claim 1 ,
wherein an optical characteristic is uniform in an area where light emitted from the plurality of organic EL elements exits outside.
8. The folding type display apparatus according to claim 1 ,
wherein the air layer is maintained without being collapsed when the folding type display apparatus is folded.