Display Frame Control with Black Insertion for Motion Blur
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Solution Overview
Problem
Display devices such as OLEDs experience motion blur and residual image phenomena due to high luminance operation, leading to accelerated deterioration of light emitting diodes.
Innovation Solution
A display device that generates luminance emphasis frames and black insertion frames to minimize high luminance operation of light emitting diodes, using a controlling unit to output these frames sequentially to suppress motion blur and reduce diode deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a black image is inserted between frames to suppress motion blur, then display quality is improved, but the luminance value of the previous frame must be increased which accelerates emitting element deterioration
Solution Approach 1:
The patent divides the frame data into multiple sub-frames and selectively applies black insertion to specific regions (moving objects) rather than the entire frame. This segmentation allows motion blur suppression for moving subjects while avoiding the need to increase overall frame luminance, thereby reducing stress on emitting elements.
Solution Approach 2:
The patent applies different processing strategies to different regions of the display: black insertion is applied only to regions containing moving objects, while static regions maintain normal display. This local quality approach ensures motion blur suppression where needed without unnecessarily increasing overall luminance and accelerating emitting element deterioration.
2Illumination intensity
If the emitting element operates in high luminance to maintain perceived brightness, then luminance recognition is maintained, but deterioration of the emitting element is escalated
Solution Approach 1:
The patent employs periodic black insertion between frames rather than continuous high luminance operation. By inserting black frames periodically at specific locations, the display maintains perceived brightness through temporal integration while reducing the cumulative stress on emitting elements compared to sustained high luminance operation.
Solution Approach 2:
The patent dynamically adjusts luminance parameters based on motion detection results. Frames containing moving objects receive black insertion processing, while static frames maintain normal luminance. This parameter change strategy maintains display quality where needed while reducing overall emitting element stress and extending durability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces the high luminance operation of light emitting diodes, minimizing diode deterioration and improving display quality by inserting black frames to maintain luminance and extend the lifespan of the display device.
Implementation Method 1
a display panel having a plurality of pixels each including an emitting element
Implementation Method 2
Each of the plurality of pixels includes a light emitting element that emit light
Data Source
AI summary
A display device includes: a display panel having a plurality of pixels each including an emitting element; and a controlling circuit configured to output an image data to the display panel based on a first frame of data and a second frame of data that is arranged after the first frame of data, wherein the controlling circuit comprises: a frame generating circuit configured to generate a luminance emphasis frame where a luminance value of a subject moving in the image data is increased relative to a luminance value of the subject in the first frame of data and a black insertion frame where a black color is inserted into the subject; and a frame outputting circuit configured to sequentially output the luminance emphasis frame and the black insertion frame to the display panel, with the black insertion frame displayed after the luminance emphasis frame.