Stereoscopic Display Drive Circuit Time-Division Multiplexing
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Solution Overview
Problem
Existing stereoscopic display methods using parallax barriers reduce image resolution and cause color breakup due to the division of pixels for left and right eye images.
Innovation Solution
A display device with a drive circuit that sequentially displays single-color images of multiple color components for each unit display area, allowing for time-division display of left and right eye images, thereby increasing resolution and reducing color breakup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a parallax barrier is disposed on the front side of the display device to enable stereoscopic viewing, then the left eye image and right eye image can be individually perceived, but the substantial resolution of the perceived image decreases because all pixels are divided into pixels for left eye and pixels for right eye
Solution Approach 1:
The patent applies temporal dynamics by sequentially displaying the left eye image and right eye image in different time periods rather than simultaneously. The drive circuit controls the display body to display the first image (left eye) in a first period and the second image (right eye) in a second period, allowing full-resolution display for each eye's image without spatial pixel division.
Solution Approach 2:
The patent implements periodic action through time-division multiplexing where the left eye image and right eye image are displayed in alternating time periods. The drive circuit uses timing control to sequentially update the display body with different eye images, creating a periodic display pattern that maintains high resolution while enabling stereoscopic viewing.
2Manufacturing precision
If single-color images of multiple color components are sequentially displayed for each unit display area to increase resolution, then image resolution improves, but color breakup may occur when the viewing position is moved
Solution Approach 1:
The patent transitions from spatial dimension to temporal dimension by displaying different color components (red, green, blue) at different time periods within each unit display area. This temporal sequencing allows each pixel to display full-color information over time rather than dividing spatial pixels for different colors, maintaining color consistency while achieving high resolution.
Solution Approach 2:
The drive circuit dynamically controls the display body to sequentially display single-color images of different color components (red, green, blue) in different time periods for each unit display area. This dynamic time-division approach ensures that each pixel displays all color information sequentially, preventing color breakup when viewing position changes.
3Manufacturing precision
If single-color images of the first image and second image are sequentially displayed in a time-division manner to increase resolution, then image resolution improves, but flicker may be perceived by the observer
Solution Approach 1:
The patent uses periodic action with high-frequency alternating display of the first image (left eye) and second image (right eye) in different time periods. By maintaining a high refresh rate within the flicker fusion threshold, the drive circuit creates a periodic display pattern that the human eye perceives as stable, eliminating visible flicker while preserving high resolution through time-division multiplexing.
Data Source
AI summary
A display device includes a display body in which a plurality of unit display areas that display images having a parallax therebetween so as to be viewed stereoscopically is arranged and a drive circuit that sequentially displays single-color images of a plurality of color components which constitute a first image and a second image having a parallax therebetween for each one or more of unit display areas among the plurality of unit display areas.