Rotating LED Display Pixel Layout for Higher Luminance and Resolution
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Solution Overview
Problem
Rotatable display devices using semiconductor light-emitting elements face limitations in luminance and resolution due to variations in subpixel sizes and arrangements, which affect brightness and pixel density.
Innovation Solution
A rotatable display device design featuring first and second light-emitting element arrays with subpixels disposed perpendicular to the longitudinal direction, allowing for sequential light emission and individual pixel control, along with wireless power transfer and image processing to optimize luminance and resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If subpixels are arranged in one dimension with wiring space requirements, then device complexity is reduced, but resolution and luminance are limited
Solution Approach 1:
The patent transitions from one-dimensional linear arrangement of light-emitting elements to a two-dimensional matrix arrangement. This dimensional change allows subpixels to be positioned more densely in both horizontal and vertical directions, significantly increasing resolution without proportionally increasing wiring complexity, as the matrix structure enables shared control lines.
Solution Approach 2:
The patent divides the display into multiple independently controllable pixels, each consisting of subpixels that can be individually controlled. This segmentation allows precise control of each pixel's luminance and enables the matrix arrangement to achieve high resolution through independent pixel addressing rather than continuous wiring.
2Ease of manufacture
If subpixel sizes vary depending on arrangement method, then ease of manufacture is improved, but luminance expression depth is limited
Solution Approach 1:
The patent changes the arrangement parameters of subpixels from variable sizes to uniform sizes in a matrix grid. This standardization maintains ease of manufacture while enabling precise control of luminance through individual pixel activation and dimming, thereby expressing deeper luminance variations without manufacturing complexity.
Solution Approach 2:
The patent implements dynamic control of each pixel's luminance through independent driving signals, allowing real-time adjustment of brightness levels. This dynamic control enables deep luminance expression by modulating the intensity and duration of light emission for each pixel, rather than relying on fixed physical subpixel size variations.
3Device complexity
If light sources are disposed in one direction, then device complexity is reduced, but resolution cannot be increased
Solution Approach 1:
The patent arranges light-emitting elements in a two-dimensional matrix rather than a one-dimensional line. This matrix structure enables resolution increases in both horizontal and vertical directions simultaneously, achieving high-resolution displays without requiring complex three-dimensional light source positioning or additional optical components.
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 design improves luminance and resolution by allowing subpixels to be positioned more densely and driven independently, reducing constraints on spacing and enabling efficient use of space for circuit wiring, thus enhancing the display's brightness and precision.
Implementation Method 1
a light-emitting diode (LED), which is a semiconductor light-emitting element that converts current into light
Implementation Method 2
various letters, graphics, and videos may be recognized by a human due to an afterimage effect
Data Source
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AI summary
The present disclosure is applicable to a display apparatus-related technical field, and relates to, for example, a rotating display apparatus using a light-emitting diode (LED) which is a semiconductor light-emitting device. According to the present disclosure, a rotating display apparatus using a light-emitting device, comprises: a fixed part including a motor; a rotary part located on the fixed part and rotated by the motor; and a light source module which is coupled to the rotary part, and which includes at least one panel that is radially arranged or at least one panel that is arranged along the cylindrical surface, and a first light-emitting device array having individual pixels that are arranged on each panel in the longitudinal direction, wherein sub-pixels forming the individual pixel of the first light-emitting device array can be arranged along a direction orthogonal to the longitudinal direction.