Abstract:
The present disclosure is directed to display circuitry that can be formed on a flexible substrate. The circuitry includes a voltage divider formed from a first and second non-linear resistor device or a first and second transistor coupled in a diode configuration. The circuitry includes a driving thin film transistor coupled to the voltage divider. The non-linear resistor devices may include a lower electrode that is amorphous metal or a crystalline metal. The first and second transistor coupled in a diode configuration may have a lower electrode that is amorphous metal. Upper electrodes may be crystalline metal. The driving thin film transistors may have the lower electrode as amorphous or crystalline metal.
Abstract:
The present disclosure is directed to display circuitry that can be formed on a flexible substrate. The circuitry includes a voltage divider formed from a first and second non-linear resistor device or a first and second transistor coupled in a diode configuration. The circuitry includes a driving thin film transistor coupled to the voltage divider. The non-linear resistor devices may include a lower electrode that is amorphous metal or a crystalline metal. The first and second transistor coupled in a diode configuration may have a lower electrode that is amorphous metal. Upper electrodes may be crystalline metal. The driving thin film transistors may have the lower electrode as amorphous or crystalline metal.
Abstract:
To provide a hold-type display device without a problem of motion blur and a driving method thereof. The length of a period for displaying a blanking image in one frame period is controlled in accordance with a control parameter showing the degree of motion blur, and the level of a signal supplied to a display element is changed in accordance with the length of the period for displaying the blanking image. Accordingly, the hold-type display device without a problem of motion blur and the driving method thereof can be provided.
Abstract:
A circuit is provided to drive a controlled current from a drive transistor into one electroluminescent element of a pixel array. The circuit is operable to compensate for threshold voltage variation of the drive transistor, thereby providing improved image quality. The circuit is suitable for implementation with p-channel MOSFETs and a conventional geometry having in order: substrate, TFT layer(s), anode, electroluminescent layer(s), cathode. A driving method for this circuit is provided. A display incorporating this circuit is provided. The circuit is operable to provide an inspection function prior to fabrication of the electroluminescent layer(s). An inspection method is provided.
Abstract:
A pixel circuit includes a first transistor that supplies a data signal to a first node in response to a scan signal. The pixel circuit may also include a capacitor that is connected between the first node and a ground voltage and a detecting unit that is connected in parallel with the capacitor. More so, the detecting unit may change a voltage of the first node by being activated in response to a mode signal. Also, the detecting unit may have resistance that varies according to an external stimulus. The pixel circuit may also include a second transistor that is complementarily activated with respect to the detecting unit in response to the mode signal, and that provides a voltage of the first node.
Abstract:
A memory device is provided which includes a memory circuit that allows a circuit which carries out a refresh operation to suitably carry out an original operation of the circuit even if an off-leakage current occurs in a transfer element used in a transfer section. A memory cell includes a switching circuit, a first retaining section, a transfer section, a second retaining section, a first control section, and a voltage supply, and the first control section is controlled to be in (i) a state in which the first control section carries out a first operation in which the first control section is in an active state or a non-active state and (ii) a state in which the first control section carries out a second operation.
Abstract:
A system and method for extracting a parasitic capacitance value from a pixel circuit including a light emitting device, a drive device to provide a programmable drive current to the light emitting device, a programming input, and a storage device to store a programming signal. The system and method determine the biasing voltage of an internal node of the pixel circuit during a driving cycle for a desired measurement level, and modify voltages of the pixel circuit that do not affect said biasing voltage to eliminate unwanted cross talk. In different implementations, the biasing voltage is determined by measuring the voltage at an internal node, or by calculating the voltage at the internal node.
Abstract:
A flat panel display includes a flexible substrate; a passive matrix display having an array of pixels formed on a side of the flexible substrate, and row and column electrodes formed on the same side of the flexible substrate and connected to the pixels for providing data and selection signals to the pixel elements; a plurality of electrical contacts formed on the same side of the substrate and electrically connected to the row and column electrodes; and discrete data and selection drivers located on the same side of the flexible substrate around the periphery of the passive matrix display and electrically connected to the electrical contacts for driving the pixels of the passive matrix display.
Abstract:
To compensate for a change of light emission intensity caused by deterioration of a light emitting element, provided is a display device including a drive element (T1) which controls a drive current to be supplied to a light emitting element (EL) in accordance with a data signal representing a target luminance of the light emitting element (EL). The light emitting element (EL) emits light in accordance with a current flowing through the light emitting element (EL). The data signal is corrected in accordance with a voltage applied at both terminals of the light emitting element (EL) so that the drive current to be supplied to the light emitting element (EL) increases with an increase in an amount of a voltage drop of the light emitting element (EL).
Abstract:
A display device and a method of driving the display device are provided. The threshold voltage of a driving transistor is compensated such that even when the threshold voltage of the driving transistor is varied, the emission of light with respect to a predetermined data voltage occurs with a predetermined luminance, based on a diode-connected compensation transistor and a plurality of switching transistors.