摘要:
In a semiconductor device made by forming functional elements on a first substrate, transferring the element chip onto a second substrate, and connecting first pads on the element chip to second pads on the second substrate, the area or the width of the first is increased. The first pads can be securely connected to the second pads even when misalignment occurs during the separating and transferring processes. Only the first pads are formed on a surface of the element chip at the second-substrate-side. The functional elements are formed to be farther from the second substrate than the first pads. Alternatively, only the first pads are formed on a surface of the element chip remote from the second substrate, and the functional elements are formed to be closer to the second substrate than the first pads. Alternatively, the first pads are formed on both the surface of the element chip at the second-substrate-side and the surface of the element chip remote from the second substrate.
摘要:
The present invention aims to manufacture a large size semiconductor device with the inter-substrate transcription technology of thin film circuits. Enlargement is enabled by disposing a plurality of second substrates (21) in a tile shape. As the second substrate (21), a print substrate or flexible print circuit having double-sided wiring or multilayer wiring is employed. The plurality of second substrates (21) is driven independently, and the plurality of second substrates (21) is made to mutually overlap, and a drive circuit (23) is disposed at such overlapping portion. Moreover, the plurality of second substrates (21) is made to mutually overlap, and the mutual circuits are connected at such overlapping portion.
摘要:
Aspects of the invention can provide a method for driving an electro-optical device, an electro-optical device and electronic equipment that can solve the insufficient supply of the data current and current fluctuation. In the driving method, a data current can be applied to a plurality of pixels provided to a display panel unit with same value through the data line regardless of grayscale data. Upon supply of the data current, in the pixel, a transistor selected in reproduction can be turned on such that a drive current corresponding to the data current output from a driving transistor is supplied to an organic EL element, thereby emitting light. A light-off signal can be supplied to the pixel at predetermined timing such that the organic EL element emits light only in the light-emitting period computed based on the grayscale data. The pixel to which a constant data current can be supplied emits light at a luminance corresponding to the grayscale data by changing the light-emitting period corresponding to the grayscale data.
摘要:
Aspects of the invention can provide a method for driving an electro-optical device, an electro-optical device and electronic equipment that can solve the insufficient supply of the data current and current fluctuation. In the driving method, a data current can be applied to a plurality of pixels provided to a display panel unit with same value through the data line regardless of grayscale data. Upon supply of the data current, in the pixel, a transistor selected in reproduction can be turned on such that a drive current corresponding to the data current output from a driving transistor is supplied to an organic EL element, thereby emitting light. A light-off signal can be supplied to the pixel at predetermined timing such that the organic EL element emits light only in the light-emitting period computed based on the grayscale data. The pixel to which a constant data current can be supplied emits light at a luminance corresponding to the grayscale data by changing the light-emitting period corresponding to the grayscale data.
摘要:
An electro-optical device which has a program period, a light-emitting period, an erasing period, and a lights-off period in one frame and controls the light-emitting period according to a light emission gray-scale level including a driving transistor that includes a current control terminal, a current input terminal, and a current output terminal, and controls a current amplifying ratio on the basis of a voltage between the current control terminal and the current input terminal, an electro-optical element that is supplied with the driving current from the driving transistor to emit light, a storage capacitor that stores the charge corresponding to the voltage between the current control terminal and the current input terminal of the driving transistor, a constant current source that outputs a constant current that is independent of the light emission gray-scale level, a voltage source that outputs a driving stop signal that turns off the driving transistor, a selection transistor that opens/closes a current path connecting any one of the constant current source and the voltage source with the driving transistor, and a scan line that outputs open/close signals that turn on/off the selection transistor. The program period is a period when the selection transistor is turned on by outputting an open signal to the scan line, and when the constant current flows from the constant current source to the driving transistor through the current path, the charge corresponding to the voltage between the current control terminal and the current input terminal is stored in the storage capacitor. The light-emitting period is a period when the selection transistor is turned off by outputting a close signal to the scan line, and the voltage corresponding to the charge stored in the storage capacitor is supplied between the current control terminal and the current input terminal of the driving transistor to supply the driving current to the electro-optical element. The erasing period is a period when the selection transistor is turned on by outputting the open signal to the scan line, and the driving stop signal is supplied to the driving transistor from the voltage source through the current path to turn off the driving transistor so that the electro-optical element stops emitting light. The lights-off period is a period when the selection transistor is turned off by outputting the close signal to the scan line, and the electro-optical element retains a non-light-emitting state. A time constant of the scan line is set so that signal delay of the open/close signals is 10% or less of a theoretical value.
摘要:
To lower the cost of manufacturing a display device, the present invention comprises a step of forming on a first substrate a release layer that releases when subjected to a specific energy, a step of forming on the release layer a plurality of pixel circuits for driving the pixels of the electro-optical device, a step of causing at least one of the pixel circuits formed on the first substrate to face the position on a second circuit, used for disposing the pixel circuits, where the pixel circuits are to be disposed, and electrically connecting that pixel circuit to the second substrate, and a step of imparting energy to a part of the release layer where the pixel circuits to be released are provided, and releasing the one pixel circuit from the first substrate along with the second substrate.
摘要:
An object of the invention is to improve patterning accuracy while maintaining low cost, high throughput and a high degree of freedom of an optical material in a matrix type display device and a manufacturing method thereof.In order to achieve the object, a difference in height, a desired distribution of liquid repellency and affinity to liquid, or a desired potential distribution is formed by utilizing first bus lines in a passive matrix type display device or utilizing scanning lines, signal lines, common current supply lines, pixel electrodes, an interlevel insulation film, or a light shielding layer in an active matrix type display device. A liquid optical material is selectively coated at predetermined positions by utilizing the difference in height, the desired distribution of liquid repellency and affinity to liquid, or the desired potential distribution.
摘要:
An electroluminescent device including a substrate, a transistor disposed above the substrate, the transistor including a gate electrode, a silicon film opposing the gate electrode, and a gate insulating film between the gate electrode and the silicon film. The electroluminescent device including a first interlayer insulation film covering the transistor, a second interlayer insulation film disposed above the first interlayer insulation film, and a pixel electrode disposed above the second interlayer insulation film and electrically connected to the transistor. The electroluminescent device including an organic EL layer disposed between the pixel electrode and a counter electrode, and a capacitor including a first electrode formed by the same material as the silicon film and a second electrode formed by the same material as the gate electrode.
摘要:
An electroluminescent apparatus having a substrate and a transistor formed above the substrate and having a gate electrode and a semiconductor film. The electroluminescent apparatus having a first insulation film including a first contact hole and a junction electrode contacted to the semiconductor film through the first contact hole. The electroluminescent apparatus having a second insulation film formed above the junction electrode and the first insulation film and including a second contact hole and a pixel electrode formed on the second insulation film and contacted to the junction electrode through the second contact hole. The electroluminescent apparatus having an insulating layer formed above the second insulation film, an organic semiconductor film formed at an emitting region above the pixel electrode, and an opposite electrode formed above the organic semiconductor film and insulating layer. The insulating layer surrounding the emitting region and overlapping the second contact hole.
摘要:
A display device having a scanning line, a data line, a power supply line, and a pixel. The pixel having a first transistor supplied with a selecting pulse of a scanning signal, a holding capacitor having a first electrode and a second electrode that holds an image signal from the data line and the first thin film transistor. The pixel also having a second transistor controlled by the image signal, a gate of the second transistor being electrically connected to the second electrode, and a luminescent element provided between a pixel electrode and an opposite electrode opposed to the pixel electrode driven by current that flows between the pixel electrode and the opposite electrode. A potential of the gate electrode of the second transistor being able to be shifted by supplying to the first electrode of the holding capacitor with a predetermined signal after the selecting pulse becomes non-selective.