G09G2300/0823

Pixel and organic light emitting display device having the same

An organic light emitting display device includes a plurality of pixels. Each of the pixels includes an organic light emitting diode, first to third transistors, a storage capacitor, and a first capacitor. The second transistor includes a gate electrode receiving a first scan signal, a first electrode receiving a data signal, and a second electrode connected to a first electrode of the first transistor. The third transistor includes a gate electrode receiving a second scan signal, a first electrode connected to a second electrode of the first transistor, and a second electrode connected to a gate electrode of the first transistor. The storage capacitor includes a first electrode receiving a power voltage and a second electrode connected to the gate electrode of the first transistor. The first capacitor includes a first electrode connected to the gate electrode of the third transistor and a second electrode receiving the power voltage.

METHOD, DEVICE, SYSTEM, AND DISPLAY DEVICE FOR ADJUSTING LUMINANCE VIEWING ANGLE OF LIQUID CRYSTAL DISPLAY PANEL
20220319456 · 2022-10-06 ·

The present disclosure provides a method, a device, a system, and a display device for adjusting a luminance viewing angle of a liquid crystal display panel. The method obtains an actual value of a luminance viewing angle corresponding to a current image, adjusts a positive and negative polarity driving voltage when the actual value is less than a threshold value to obtain a relational expression between the positive and negative polarity driving voltage and the luminance viewing angle, processes a difference value between the actual value and the threshold value to obtain a target driving voltage value, and adjusts the positive and negative polarity driving voltage according to the target driving voltage value, thereby realizing adjustment of the luminance viewing angle.

DISPLAY DEVICE AND GAMMA UNIT FOR DISPLAY PANEL
20230154408 · 2023-05-18 · ·

A display device including a display panel including a plurality of pixels and supplied with a high potential power voltage; a gamma unit including a first gamma reference voltage generator configured to generate a first gamma reference voltage; a second gamma reference voltage generator configured to generate a second gamma reference voltage; a gamma voltage generator configured to output a first gamma voltage based on the first gamma reference voltage or output a second gamma voltage based on the second gamma reference voltage; and a voltage setting unit disposed between the first and second gamma reference voltage generators and the gamma voltage generator and configured to selectively connect the first gamma reference voltage generator to the gamma voltage generator to output the first gamma voltage or selectively connect the second gamma reference voltage generator to the gamma voltage generator to output the second gamma voltage. The display device also includes a data driver configured to apply a data voltage to the display panel based on the gamma voltage output by the gamma voltage generator. Further, the second gamma reference voltage is coupled to a feedback voltage of the high potential power voltage from the display panel.

DISPLAY DEVICE AND METHOD OF OPERATING THE SAME
20170372654 · 2017-12-28 · ·

A display device includes: a pixel array including pixels at intersections of data lines and gate lines, a shift register including stages connected as a cascade, the shift register sequentially supplying gate pulses to the gate lines, and a node controller controlling nodes in the shift register, a first stage including: a pull-up transistor charging the output based on a Q node for a first gate pulse, a pull-down transistor discharging the output to a gate-low voltage based on a QB node voltage, a start controller pre-charging the Q node, and a QB node discharge controller discharging the QB node to a first low-potential voltage based on a first reset signal input line (IL), the node controller including a first reset signal generator that, during a vertical blanking interval of each frame, charges the first reset signal IL in response to a turn-on voltage applied to a gate-low voltage IL.

DISPLAY APPARATUS
20170371193 · 2017-12-28 ·

According to an aspect, a display apparatus includes: a display panel including a plurality of pixels each including a pixel capacitor and a pixel transistor, a scanning line that is coupled to the respective pixels and is configured to receive a scan signal, and a video signal line that is coupled to the respective pixels and is configured to receive a video signal; and a driver configured to drive the display panel. The pixel transistor includes: at least one N-channel metal oxide semiconductor (NMOS) transistor coupled between the video signal line and the pixel capacitor; and a P-channel metal oxide semiconductor (PMOS) transistor coupled in parallel with the NMOS transistor.

Organic light emitting display device and driving method thereof
09786217 · 2017-10-10 · ·

An organic light emitting display device includes a scan driving unit that supplies scan signals to scan lines, a data conversion unit that receives a first data signal for displaying an image and converts the first data signal to create a second data signal; a data driving unit that supplies the first data signal and the second data signal to data lines; a pixel unit including pixels positioned at intersections of the scan lines with the data lines, the pixels emitting light having a luminance corresponding to the first data signal during an image display subperiod and having a luminance corresponding to the second data signal during a compensation subperiod; and an image selection unit that transmits an image corresponding to the first data signal and blocking an image corresponding to the second data signal.

Array Substrate and Manufacturing Method Thereof, Display Panel and Driving Method Thereof

An array substrate and a manufacturing method thereof, and a display panel including the array substrate and a driving method thereof are provided. Each of the sub-pixel units of the array substrate includes a first thin film transistor and a second thin film transistor; the first thin film transistor includes a first gate electrode, a first source electrode and a first drain electrode; the second thin film transistor includes a second gate electrode, a second source electrode and a second drain electrode; each of the sub-pixel unit further includes a first pixel electrode electrically connected to the first drain electrode, a second pixel electrode electrically connected to the second drain electrode; and the first pixel electrode and the second pixel electrode are disposed in different layers and insulated with each other.

CHARGE SHARING CIRCUIT AND CHARGE SHARING METHOD FOR DISPLAY PANEL, AND DISPLAY PANEL
20220051638 · 2022-02-17 ·

This application discloses a charge sharing circuit and charge sharing method for a display panel and a display panel. The charge sharing circuit includes a controller (250) and n sets of sharing sub-circuits (240), where each set of sharing sub-circuits (240) operates in response to a corresponding one of different polarity driving modes of pixel electrodes of the display panel, each set of sharing sub-circuits (240) includes a plurality of control elements (241), in a set of sharing sub-circuits (240), each of the data lines is connected to only one control element (241), within the same period of time, the controller drives only one set of sharing sub-circuits to operate, and n≥1.

Liquid crystal display, liquid crystal panel, and method of driving the same
09778524 · 2017-10-03 · ·

A liquid crystal display includes a plurality of data lines and a plurality of gate lines disposed on a substrate in horizontal and vertical directions, respectively, pixel electrodes formed at intersecting regions of the data lines and the gate lines, a plurality of erasing signal lines disposed parallel to the gate lines, first thin film transistors, each including a first source electrode connected to one data line, a first gate electrode connected to one gate line, and a first drain electrode connected to one pixel electrode, and second thin film transistors, each including a second drain electrode connected to the pixel electrode, a second gate electrode connected to the erasing signal line, and a second source electrode connected to a predetermined potential.

DISPLAY INCLUDING NANOSCALE LED MODULE
20170250168 · 2017-08-31 ·

Provided are a display including a very-small light-emitting diode (LED) and a method of manufacturing the same. The display includes a panel in which a first signal line and a second signal line are disposed in a lattice form, an LED module including an electrode assembly having a first electrode connected to the first signal line and the second signal line and a second electrode connected to a ground, and a plurality of very-small LEDs connected to the first electrode and the second electrode, and two or more switches which connect the first signal line and the second signal line to the first electrode, wherein the second electrode is connected to a common electrode formed on the panel, at least one other LED module is grounded to the common electrode, and the two or more switches selectively provide a current supplied through the first signal line to the first electrode on the basis of a signal of the first signal line and a signal of the second signal line.