摘要:
A transistor has variation in a threshold voltage or mobility due to accumulation of factors such as variation in a gate insulating film which is caused by a difference of a manufacturing process or a substrate to be used and variation in a crystal state of a channel formation region. The present invention provides an electric circuit which is arranged such that both electrodes of a capacitance device can hold a voltage between the gate and the source of a specific transistor. Further, the present invention provides an electric circuit which has a function capable of setting a potential difference between both electrodes of a capacitance device so as to be a threshold voltage of a specific transistor.
摘要:
The transistor suffers the variation caused in threshold voltage or mobility due to gathering of the factors of the variation in gate insulator film resulting from a difference in manufacture process or substrate used and of the variation in channel-region crystal state. The present invention provides an electric circuit having an arrangement such that both electrodes of a capacitance element can hold a gate-to-source voltage of a particular transistor. The invention provides an electric circuit having a function capable of setting a potential difference at between the both electrodes of the capacitance element by the use of a constant-current source.
摘要:
The transistor suffers the variation caused in threshold voltage or mobility due to gathering of the factors of the variation in gate insulator film resulting from a difference in manufacture process or substrate used and of the variation in channel-region crystal state. The present invention provides an electric circuit having an arrangement such that both electrodes of a capacitance element can hold a gate-to-source voltage of a particular transistor. The invention provides an electric circuit having a function capable of setting a potential difference at between the both electrodes of the capacitance element by the use of a constant-current source.
摘要:
A liquid crystal display device with improved productivity and a manufacturing method of the same. A liquid crystal display device according to the invention comprises in a region in which a scan line and a data line intersect with each other a first substrate comprising a first thin film transistor using either an amorphous semiconductor or an organic semiconductor for a channel portion, a second substrate, a liquid crystal layer interposed between the first substrate and the second substrate, and a third substrate comprising a second thin film transistor using a crystalline semiconductor for a channel portion. In the liquid crystal display device of the invention, a crystal grain boundary in the crystalline semiconductor extends along the flow of electrons or holes in the second thin film transistor, the first substrate is attached to the second substrate so that the first substrate is exposed, a first region for forming the second thin film transistor and a second region for forming an input terminal and an output terminal are formed on the third substrate, and the short side length of the third substrate is 1 to 6 mm and the short side length of the first region is 0.5 to 1 mm.
摘要:
A liquid crystal display device with improved productivity and a manufacturing method of the same. A liquid crystal display device according to the invention comprises in a region in which a scan line and a data line intersect with each other a first substrate comprising a first thin film transistor using either an amorphous semiconductor or an organic semiconductor for a channel portion, a second substrate, a liquid crystal layer interposed between the first substrate and the second substrate, and a third substrate comprising a second thin film transistor using a crystalline semiconductor for a channel portion. In the liquid crystal display device of the invention, a crystal grain boundary in the crystalline semiconductor extends along the flow of electrons or holes in the second thin film transistor, the first substrate is attached to the second substrate so that the first substrate is exposed, a first region for forming the second thin film transistor and a second region for forming an input terminal and an output terminal are formed on the third substrate, and the short side length of the third substrate is 1 to 6 mm and the short side length of the first region is 0.5 to 1 mm.
摘要:
The invention provides a display device and an electronic device, each of which has one of a structure in which a substrate provided with a light emitting element which performs bottom light emission and a substrate provided with a light emitting element which performs top light emission are attached, and a structure in which two substrates, each of which is provided with a light emitting element which performs bottom light emission are attached. By attaching two substrates, each of which is provided with a light emitting element, displays are provided on the front and back of the display device, thus a high added value can be realized. One of the two substrates, each of which is provided with a light emitting element also functions as a sealing substrate for another substrate, thus a compact, thin, and lightweight display device can be obtained.
摘要:
A liquid crystal display device with improved productivity and a manufacturing method of the same. A liquid crystal display device according to the invention comprises in a region in which a scan line and a data line intersect with each other a first substrate comprising a first thin film transistor using either an amorphous semiconductor or an organic semiconductor for a channel portion, a second substrate, a liquid crystal layer interposed between the first substrate and the second substrate, and a third substrate comprising a second thin film transistor using a crystalline semiconductor for a channel portion. In the liquid crystal display device of the invention, a crystal grain boundary in the crystalline semiconductor extends along the flow of electrons or holes in the second thin film transistor, the first substrate is attached to the second substrate so that the first substrate is exposed, a first region for forming the second thin film transistor and a second region for forming an input terminal and an output terminal are formed on the third substrate, and the short side length of the third substrate is 1 to 6 mm and the short side length of the first region is 0.5 to 1 mm.
摘要:
The invention provides a display device and an electronic device, each of which has one of a structure in which a substrate provided with a light emitting element which performs bottom light emission and a substrate provided with a light emitting element which performs top light emission are attached, and a structure in which two substrates, each of which is provided with a light emitting element which performs bottom light emission are attached. By attaching two substrates, each of which is provided with a light emitting element, displays are provided on the front and back of the display device, thus a high added value can be realized. One of the two substrates, each of which is provided with a light emitting element also functions as a sealing substrate for another substrate, thus a compact, thin, and lightweight display device can be obtained.
摘要:
A liquid crystal display device with improved productivity and a manufacturing method of the same. A liquid crystal display device according to the invention comprises in a region in which a scan line and a data line intersect with each other a first substrate comprising a first thin film transistor using either an amorphous semiconductor or an organic semiconductor for a channel portion, a second substrate, a liquid crystal layer interposed between the first substrate and the second substrate, and a third substrate comprising a second thin film transistor using a crystalline semiconductor for a channel portion. In the liquid crystal display device of the invention, a crystal grain boundary in the crystalline semiconductor extends along the flow of electrons or holes in the second thin film transistor, the first substrate is attached to the second substrate so that the first substrate is exposed, a first region for forming the second thin film transistor and a second region for forming an input terminal and an output terminal are formed on the third substrate, and the short side length of the third substrate is 1 to 6 mm and the short side length of the first region is 0.5 to 1 mm.
摘要:
A liquid crystal display device with improved productivity and a manufacturing method of the same. A liquid crystal display device according to the invention comprises in a region in which a scan line and a data line intersect with each other a first substrate comprising a first thin film transistor using either an amorphous semiconductor or an organic semiconductor for a channel portion, a second substrate, a liquid crystal layer interposed between the first substrate and the second substrate, and a third substrate comprising a second thin film transistor using a crystalline semiconductor for a channel portion. In the liquid crystal display device of the invention, a crystal grain boundary in the crystalline semiconductor extends along the flow of electrons or holes in the second thin film transistor, the first substrate is attached to the second substrate so that the first substrate is exposed, a first region for forming the second thin film transistor and a second region for forming an input terminal and an output terminal are formed on the third substrate, and the short side length of the third substrate is 1 to 6 mm and the short side length of the first region is 0.5 to 1 mm.