G09G2320/041

Display Screen Aging Compensation Method, Circuit System, and Electronic Device

A display screen aging compensation method, system, and device, the method including obtaining display data of each display area of a display screen having at least one display area, the display data including usage time t of the display area, a maximum gray level value Lev_max that is of each primary color and that is obtained before the display data, and an average gray level value Lev of each primary color of three primary colors within the usage time t, where the usage time is accumulated screen-on time that is of the display area and that is obtained after the display screen is powered on, obtaining a decay ratio of each primary color of the display area based on the display data, and performing aging compensation on each display area based on the decay ratio of each primary color of each display area.

ELECTRONIC DEVICE, DISPLAY DEVICE CONNECTED TO ELECTRONIC DEVICE, AND OPERATING METHOD THEREOF

An electronic device is provided. The electronic device includes a communication circuit, and at least one processor operatively connected to the communication circuit, wherein the at least one processor is configured to establish, via the communication circuit, a communication connection with a display device, identify channel information about a first channel on which the communication connection is established, identify image information about an image displayed in the display device, and based on the channel information about the first channel and the image information, identify whether the electronic device is capable of transmitting a data frame each communication cycle which corresponds to a frame rate provided in the display device.

Method, a device, a display device and a medium for improving OLED residual images

The present application discloses a method, a device, a display device and a medium for improving OLED residual images. The method for improving OLED residual images includes obtaining a life attenuation rate relationship and a life attenuation degree relationship of an OLED display panel, dividing a display area of the display panel into a plurality of sub-areas to monitor temperature change and gray scale change of each sub-area respectively, obtaining a temperature value and a gray scale value of each sub-area at a current moment, calculating a current life attenuation rate according to the temperature value and the gray scale value, and calculating a current luminous time of each sub-area, calculating a life attenuation degree of each sub-area according to the current luminous time of each sub-area, and performing pixel compensation to each sub-area respectively according to the current life attenuation degree of each sub-area.

METHOD FOR OPTIMIZING IMAGE QUALITY AND MODULE FOR OPTIMIZING IMAGE QUALITY
20230079286 · 2023-03-16 ·

A method for optimizing image quality and a module for optimizing image quality are provided. The method includes: in a gamma adjustment phase, controlling and setting respective actual data voltages corresponding to a grey scale 0 of sub-pixels having different colors, and controlling at least two of the actual data voltages corresponding to the grey scale 0 of the sub-pixels having different colors to be different from each other, to control a gamma curve of the sub-pixels to make an absolute value of a luminance difference between the luminance of the gamma curve corresponding to each grey scale value and the luminance of a standard gamma curve corresponding to the grey scale value less than a predetermined luminance difference; and in a display phase, when a grey scale value provided to sub-pixels having different colors is 0, applying the corresponding actual data voltages to the sub-pixels having different colors.

Displays with Reduced Temperature Luminance Sensitivity
20230080809 · 2023-03-16 ·

A display may include an array of pixels. Each pixel in the array includes an organic light-emitting diode coupled to a drive transistor, a data loading transistor, a first capacitor for storing data charge, and a second capacitor. During a data programming phase, the data loading transistor may be activated to load in a data value onto the first capacitor. After the data programming phase, the second capacitor may be configured to receive a lower voltage, which extends a threshold voltage sampling time for the pixel. Configured and operated in this way, the temperature luminance sensitivity of the display can be reduced.

Organic light emitting diode display thermal management

An information handling system organic light emitting diode (OLED) display adapts presentation of visual information to manage a display thermal state, such as to maintain a uniform thermal condition. In one example embodiment, a first display zone of plural pixels presents visual images with a first refresh rate, such as the nominal refresh rate established by the display settings, and a second display zone presents visual images with a partial pixel refresh rate that reduces power dissipation and, thus, thermal energy release so that a more uniform thermal state may be achieved at the display.

DISPLAY DEVICE AND DRIVING METHOD OF DISPLAY DEVICE
20230085452 · 2023-03-16 ·

A display device includes a display panel which displays an image, a panel driving block which provides a data signal to the display panel, and a temperature measuring part which measures a temperature of the display panel and provides a measurement temperature to the panel driving block. The panel driving block includes a first memory which stores a reference gamma voltage corresponding to a predetermined reference temperature, a temperature difference calculating part which calculates a temperature difference between the reference temperature and the measurement temperature, and a compensation part which generates a correction gamma voltage by correcting the reference gamma voltage based on the temperature difference between the reference temperature and the measurement temperature. The data signal is generated based on the correction gamma voltage and the image signal.

Electronic Devices with Displays for Mitigating Cathode Noise

A display may include an array of pixels. Each pixel in the array may include a drive transistor, emission transistors, a data loading transistor, a gate voltage setting transistor, an initialization transistor, an anode reset transistor, a storage capacitor, and an optional current boosting capacitor coupled in series with an isolation transistor. A data refresh may include a initialization phase, a threshold voltage sampling phase, and a data programming phase. The threshold voltage sampling phase can be substantially longer than the data programming phase to decrease a current sampling level during the threshold voltage sampling phase, which helps reduce the display luminance sensitivity to temperature variations. During a data refresh, the isolation transistor can be turned on to provide current boosting. During emission periods, the isolation transistor is turned off to prevent cathode noise from potentially coupling through to one or more direct-current voltage nodes in the pixel.

DISPLAY DEVICE
20230071294 · 2023-03-09 ·

According to an aspect, a display device, includes: a display panel having a display region in which a plurality of pixels are provided; a plurality of temperature sensors; and a control integrated circuit (IC) configured to control operations of the display panel and the temperature sensors. A plurality of temperature detection regions in which the temperature sensors are arranged are provided to overlap the display region. The display region has a plurality of partial regions that overlap the temperature detection regions, respectively. The control IC is provided capable of controlling the display region on a partial region basis. At least either signal lines of the display panel or scan lines of the display panel, and the temperature sensors are coupled to the control IC.

Signal Processing Apparatus, Signal Processing Method, And Display Apparatus

The present technology relates to a signal processing apparatus, a signal processing method, and a display apparatus that are able to provide suitable functionality according to applications. The signal processing apparatus provided by the present technology includes a signal processing section that acquires at least one of first information regarding a color of a video to be displayed on a panel section, second information regarding brightness of a screen of the panel section, and third information measured as a physical quantity related to the panel section, and that performs, on the basis of the acquired information, adaptive control of a voltage according to a load on and an application of the panel section. The voltage is used for driving the panel section. The present technology is applicable, for example, to a self-luminous display apparatus.