Image display apparatus using thin-film transistors
View Patent ↗There are provided a display apparatus and a display method, with which compressed image data that is to be decompressed can be transmitted to the display apparatus in an environment in which a transmission capacity is not always secured, and good image display is realized. An example of the display apparatus is an active matrix display apparatus formed by using thin-film transistors formed on an insulating substrate. In the active matrix display apparatus, a circuit that receives an image data signal from an external system via a non-contact transmission path and amplifies the image data signal, a circuit that processes the image data signal, and a memory circuit that stores the processed image data are integrated on the insulating substrate.
1. An active matrix display apparatus formed by using thin-film transistors formed on an insulating substrate, comprising:
a circuit that receives an image data signal from an external system via a non-contact transmission path which includes an inductor comprising a winding made of a metal thin film provided on the insulating substrate, and that amplifies the image data signal; and
a circuit that processes the amplified image data signal,
wherein a channel region of at least one thin-film transistor including respective circuits is provided on a silicon thin film that is formed on the insulating substrate, the silicon thin film having crystal growth in a lateral direction whose area is larger than the channel region.
2. A display apparatus formed by using thin-film transistors formed on an insulating substrate, comprising:
a circuit that receives an image data signal from an external system via a non-contact transmission path, and amplifies the image data signal; and
a circuit that processes the amplified image data signal,
wherein the circuit that receives and amplifies the image data signal and the circuit that processes the amplified image data signal are integrated on the insulating substrate, and
at least one of the respective circuits is formed by thin-film transistors including a channel region provided on a silicon thin film that is formed on the insulating substrate, the silicon thin film having crystal grown in a lateral direction whose area is larger than the channel region.
3. The display apparatus according to any one of claims 1 to 2 , further comprising a memory circuit that is connected to the circuit that processes the image data signal, and stores the processed image data.
4. The display apparatus according to claim 3 , wherein the memory circuit is a static random access memory.
5. The display apparatus according to any one of claims 1 to 2 , wherein the non-contact transmission path is a capacitive-coupling transmission line that is composed of two pairs of closely opposed planar electrodes.
6. The display apparatus according to any one of claims 1 to 2 , wherein the non-contact transmission path is an inductive-coupling transmission line that is composed of a pair of inductors.
7. The display apparatus according to claim 6 , wherein a transmission inductor element and a reception inductor element, which are included in the paired inductors, have winding portions of different sizes.
8. The display apparatus according to any one of claims 1 to 2 , wherein the image data signal is compressed data signal.
9. The display apparatus according to any one of claims 1 to 2 , wherein the circuit that processes the image data signal includes a compressed data decompression circuit.
10. The display apparatus according to any one of claims 1 to 2 , wherein the insulating substrate is a glass substrate.
11. The display apparatus according to any one of claims 1 to 2 , wherein the insulating substrate further includes an antenna and a transmission circuit, and reception and transmission are switched by a switch that uses a thin-film transistor, thereby enabling signal transmission.
12. The display apparatus according to any one of claims 1 to 2 , wherein in that the non-contact transmission path is an optical transmission line.
13. The display apparatus according to any one of claims 1 to 2 , wherein the insulating substrate includes a connection end portion that is to be inserted in a connection slot that is formed in the external system, and the insulating substrate, when used, is coupled to the connection slot.
14. The display apparatus according to any one of claims 1 to 2 , wherein the display apparatus uses one of liquid crystal and an organic electroluminescent element as a pixel.