G09G2320/043

Data voltage compensation method, a display driving method, and a display apparatus

The present application discloses a method for compensating data voltages in a display apparatus. The method for individually compensating a data voltage to be applied to one of the multiple pixel circuits in the display apparatus. The method includes obtaining a threshold voltage of the driving transistor in the one of the multiple pixel circuits. Additionally, the method includes applying a testing voltage to a gate electrode of the driving transistor for charging the sense line up to a first time period to determine a first monitoring voltage associated with the sense line. The testing voltage is set to be a sum of the threshold voltage and a first setting voltage. Moreover, the method includes compensating a data voltage to be applied to the one of the multiple pixel circuits based on the first monitoring voltage and the threshold voltage.

PIXEL CIRCUITS FOR AMOLED DISPLAYS
20230018709 · 2023-01-19 ·

A system for controlling a display in which each pixel circuit comprises a light-emitting device, a drive transistor, a storage capacitor, a reference voltage source, and a programming voltage source. The storage capacitor stores a voltage equal to the difference between the reference voltage and the programming voltage, and a controller supplies a programming voltage that is a calibrated voltage for a known target current, reads the actual current passing through the drive transistor to a monitor line, turns off the light emitting device while modifying the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, modifies the calibrated voltage to make the current supplied through the drive transistor substantially the same as the target current, and determines a current corresponding to the modified calibrated voltage based on predetermined current-voltage characteristics of the drive transistor.

Display device

A display device includes a data line, a pixel electrically connected to the data line, a data driver for outputting a data voltage, and a transmitter electrically connected between an output terminal of the data driver and the data line. The transmitter may transmit an instance of the data voltage to the data line in a first period. The transmitter may amplify a second instance of the data voltage to generate a reference voltage and then transmit the reference voltage to the data line in a second period different from the first period. The pixel includes a light emitting element for emitting light in response to the first instance of the data voltage. A voltage level of the reference voltage may be higher than a voltage level of the data voltage.

Pixel and display device including the same

A pixel of display device includes a light emitting element, a first transistor coupled between first power source and a second node and having a gate electrode connected to a first node N1, and the first transistor being configured to control a driving current supplied to the light emitting element in response to a voltage of the first node, a first capacitor including one electrode connected to the first node and another electrode connected to a third node, a second transistor coupled between the third node and a data line, a third transistor coupled between the first node and the second node, a fourth transistor coupled between the first node and an initialization power source, a fifth transistor coupled between a reference power source and the third node, and an eighth transistor coupled between a fourth node and an anode initialization power source.

MANAGING THERMAL DISSIPATION IN A DISPLAY OF AN INFORMATION HANDLING SYSTEM
20230015319 · 2023-01-19 ·

In one embodiment, a method for managing thermal dissipation in a display of an information handling system includes: emitting, by a light source of the display, a visible light within the display, the visible light associated with a heat within the display; receiving, by an absorption layer of the display, the visible light within the display, the absorption layer coupled to a display cover of the display; absorbing, by the absorption layer, a portion of the visible light comprising a light leakage from the display; absorbing, by the absorption layer, a portion of the heat within the display; and transferring, by the absorption layer, the portion of the heat into the display cover.

DISPLAY DEVICE AND METHOD OF DRIVING THE SAME

A display device according to an embodiment includes a pixel including a light emitting unit, a data driver that supplies a data voltage to the pixel, and a luminance corrector that corrects image data and generates compensation data corresponding to the data voltage. The light emitting unit includes at least one sub element group. The at least one sub element group includes light emitting elements. The luminance corrector extracts a deterioration value of the at least one sub element group and calculates a luminance value of the at least one sub element group according to a number of the light emitting elements included in the at least one sub element group.

SYSTEM AND METHOD FOR REDUCING ELECTROMAGNETIC INTERFERENCE IN A DISPLAY PANEL

A display system includes a first memory and a display driver. The display system is configured to control the first memory to receive compensation information from the first memory with a first frequency and generate data signals for image data to be displayed on a display panel. The generation of the data signals comprises performing a compensation for the data signals based on the compensation information received from the first memory. The display driver is further configured to update pixels of the display panel with the data signals during an active display state. The display driver is further configured to generate updated compensation information based at least in part on the image data and the compensation information received from the first memory and transmit the updated compensation information to the first memory during the active display state with a second frequency lower than the first frequency.

Shift register, semiconductor device, display device, and electronic device

In a semiconductor device and a shift register, low noise is caused in a non-selection period and a transistor is not always on. First to fourth transistors are provided. One of a source and a drain of the first transistor is connected to a first wire, the other of the source and the drain thereof is connected to a gate electrode of the second transistor, and a gate electrode thereof is connected to a fifth wire. One of a source and a drain of the second transistor is connected to a third wire and the other of the source and the drain thereof is connected to a sixth wire.

WEARABLE DISPLAY APPARATUS AND DRIVING METHOD THEREOF
20230011656 · 2023-01-12 ·

A wearable display apparatus comprises a control unit, a display unit, an optical transmission unit and a photoelectric detection unit. The control unit is configured to control the display unit to output a display image, the light transmission unit is configured to transmit a first part of light of the display image to human eyes, and transmit a second part of the light of the display image to the photoelectric detection unit, the photoelectric detection unit is configured to send a feedback signal to the control unit; and the control unit is configured to compensate for a drift of characteristics including brightness and color according to the feedback signal from the photoelectric detection unit.

INVERTER CIRCUIT, GATE DRIVER USING THE SAME, AND DISPLAY DEVICE
20230008896 · 2023-01-12 · ·

An inverter circuit, a gate driver using the same, and a display device according to an embodiment are discussed. The inverter circuit can include a first transistor connected between a high potential voltage line and a first node; a second transistor having a gate connected to the first node and turned on according to a voltage of the first node to charge a second control node to a high potential voltage of the high potential voltage line; a third transistor having a gate connected to a first control node, a first electrode connected to the first node, and a second electrode connected to the second control node; and a fourth transistor having a gate connected to the first control node, a first electrode connected to the second control node, and a second electrode connected to a low potential voltage line.