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9results about How to "Reduce flicker" patented technology

Display device and driving method thereof

ActiveCN116416921BReduce brightness deviationUniform brightnessCathode-ray tube indicatorsComputer hardwareImage resolution
Disclosed are a display apparatus and a driving method thereof. The display apparatus includes a display panel configured to display an image, a driver configured to drive the display panel, a controller configured to control the driver, and a duty cycle controller configured to define an unknown area and a known area within one frame when a driving frequency of the display panel is changed, and to change a duty cycle for driving the known area, wherein vertical resolution information is unknown in the unknown area and the vertical resolution information is known in the known area.
Owner:LG DISPLAY CO LTD

Dynamic control system and method of operation thereof

A dynamic control system and an operation method thereof are disclosed. The dynamic control system includes a timing control module, a compensation module and a gain module. The timing control module is configured to provide a timing control signal according to an operating frequency of a display device. The compensation module is coupled to the timing control module and configured to receive an input signal and the timing control signal, and output a compensated signal according to the timing control signal. The gain module is coupled to the compensation module and the timing control module, and configured to receive the compensated signal and the timing control signal, and output an output signal according to the timing control signal.
Owner:RAYDIUM SEMICON

Three-dimensional gaussian rendering optimization system and method based on cpu level splitting and gpu driving

PendingCN122597614Areduce data volumelower sort
This application provides a 3D Gaussian rendering optimization system and method based on CPU hierarchical splitting and GPU driving, relating to the field of 3D graphics rendering technology. This application divides the 3D Gaussian scene into multiple bounding boxes on the CPU side, determines the view distance level, protection level, and reconstruction cost level of each bounding box, and uses the highest of these three levels as the lower limit of the target level. The scheduling module adjusts the current rendering level frame by frame, determining the summary state, partial unfolding mode, or unfolded state based on screen error and GPU budget. On the GPU side, representative Gaussian points and unfolded 3D Gaussian points are uniformly sorted and rendered, and the frame rate and the total number of activated 3D Gaussian points are fed back. This reduces the amount of data submitted, takes into account the protection of key areas, achieves smooth hierarchical transitions, and forms a rendering feedback loop, improving the frame rate stability and resource utilization of real-time rendering.
Owner:BEIJING ZHIHUI YUNZHOU TECH CO LTD

Electronic device with low refresh rate display pixels

ActiveCN113205777Breduce flickerreduce leakageStatic indicating devicesDisplay deviceBias stress
The invention is entitled "Electronic device with low refresh rate display pixels." A display is disclosed that can have an array of organic light emitting diode display pixels that operate at low refresh rates. Each display pixel can have six thin film transistors and a capacitor. One of the six transistors can be used as a drive transistor and the remaining five transistors and capacitor can be used for compensation. One or more bias stress operations can be applied prior to threshold voltage sampling to mitigate first frame dimming. Multiple anode reset and bias stress operations can be inserted during a vertical blanking period to reduce flicker and maintain balance and can also be inserted between successive data refreshes to improve first frame performance. Two different emission signals that control each pixel can be toggled back and forth using a pulse width modulation scheme to help provide a darker black level.
Owner:APPLE INC

Display device and gamma cell for display panel

The present disclosure provides a display apparatus and a gamma unit for a display panel. The display apparatus includes a gamma unit including a gamma reference voltage generator generating a plurality of gamma reference voltages and a gamma voltage generator generating a gamma voltage based on the gamma reference voltages, a data driver generating a data voltage based on the gamma voltage, and a display panel electrically connected to the data driver. The gamma reference voltage generator includes a first gamma reference voltage generator generating a first gamma reference voltage based on external power and a second gamma reference voltage generator generating a second gamma reference voltage based on a feedback voltage from a high potential power voltage of the display panel. Accordingly, the plurality of gamma reference voltages can vary according to characteristics of an image to be used.
Owner:LG DISPLAY CO LTD

Microwave filter with superconductor-insulator transition material

A microwave filter includes a superconductor-insulator transition (SIT) layer including a material exhibiting a superconductor-insulator transition associated with a superconducting energy gap frequency. For a signal transmitted through the layer, the microwave filter is a low-pass filter having a cutoff frequency twice the superconducting gap frequency.
Owner:GOOGLE LLC

Induction heater and rice cooker

ActiveCN114501708Breduce flicker
An induction heater and a rice cooker. The induction heater includes a heating coil, an inverter circuit, and a control circuit. The inverter circuit generates and outputs power supplied to the heating coil from the power supply circuit. The control circuit causes the inverter circuit to repeatedly output the power supply at a period T, which includes a conduction period Ton during which the power supply is output and a non-conducting period Toff during which the power supply is not output, thereby adjusting the effective value of the power supply. From the time the indicated value of the power supply is set to the target value (P2) of the power supply during the conduction period Ton until the end of the conduction period Ton, the control circuit performs a decreasing process, either by gradually decreasing the indicated value or the slope of the time change of the indicated value, or by continuously decreasing the indicated value.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

A residual attribute prompt driven detection and incremental learning method for unknown thrown objects

The application discloses a residual attribute prompt driven detection and incremental learning method for unknown scattering objects, aiming to solve the problems of missing detection, false detection and lack of self-learning ability of existing inspection on training set outside scattering objects. When the inspection vehicle or unmanned aerial vehicle enters the working area, start the visible light camera to collect real-time video stream; use the context residual learning module to detect the abnormal area of the video image, generate the residual energy graph to locate the potential unknown scattering object; based on the shape, texture and reflectivity statistics of the candidate frame area, construct the attribute vector and automatically generate the descriptive semantic prompt word, the prompt and the preset word library are fused through the gate weight to drive the open visual-linguistic segmentation, output the boundary information and semantic label of the scattering object; through the adaptive incremental learning module, the new detection sample is updated and knowledge playback with few samples, realizing the dynamic expansion and continuous evolution of the knowledge base. The application realizes the discovery of unknown targets through residual detection, completes semantic recognition and boundary extraction through open segmentation, and continuously expands the detection category through adaptive incremental learning, constructs a 'discovery-recognition-learning' closed loop mechanism, thereby significantly improving the processing ability of road inspection on unknown scattering objects in complex environment.
Owner:NANJING UNIV OF SCI & TECH

Video time sequence consistency restoration method based on residual guided diffusion and cross-frame attention distillation

The invention provides a video time sequence consistency restoration method based on residual guided diffusion and cross-frame attention distillation, and relates to the technical field of video image restoration. The method comprises the following steps: constructing a degeneration-clear frame pair data set, and a teacher network and a student network containing a coding-decoding diffusion denoising backbone network; generating a noise-added image sequence; performing residual scale modulation through a residual scale prediction module to obtain a first restored feature sequence, and performing cross-frame attention fusion to obtain a second restored feature sequence; respectively outputting a teacher recovery result sequence and a student recovery result sequence; and constructing a total loss function containing reconstruction loss, distillation loss and time consistency loss in combination with the degradation-clear frame pair and the two types of restoration results, iteratively optimizing the student network, and restoring the video to be restored to obtain a target restored video sequence. According to the method, the ubiquitous problems that residual error utilization is not adaptive, time sequence modeling is insufficient and distillation lacks structure maintenance in an existing video restoration method are solved.
Owner:SOUTHWEAT UNIV OF SCI & TECH +1