Semi-transmissive Display Panel with Segmented Transmissive and Reflective Regions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional three-dimensional image display devices, especially in portable terminals, face challenges in achieving high brightness and wide visible range while minimizing electric power consumption, particularly due to the limitations of semi-transmissive liquid crystal display panels which reduce the visible range when using both transmissive and reflective regions.
Innovation Solution
The implementation of a display panel with pixel sections that include both transmissive and reflective regions, arranged perpendicular to the direction of light deflection by an optical unit such as a lenticular lens or parallax barrier, allows for adjustable light intensity based on external light conditions, maintaining high brightness and preventing reduction in visible range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If semi-transmissive liquid crystal display panels are used to reduce power consumption, then power consumption is reduced, but the visible range is narrowed
Solution Approach 1:
The display panel is divided into multiple pixel sections, each containing transmissive and reflective regions. This segmentation allows different regions to serve different functions: transmissive regions for high brightness when external light is sufficient, and reflective regions for power saving when external light is available. The optical unit is also segmented to correspond with different pixel sections, enabling independent control of light paths for each region.
Solution Approach 2:
The display system dynamically switches between transmissive and reflective modes based on external light conditions. The control unit adjusts the state of each pixel section in real-time, selecting either transmissive or reflective operation mode according to ambient light levels, thereby optimizing both visibility and power consumption under varying environmental conditions.
2Illumination intensity
If transmissive light is used to increase brightness, then brightness is improved, but power consumption increases
Solution Approach 1:
Different regions of the display panel are assigned different optical characteristics. Transmissive regions are positioned where high brightness is required and external light is insufficient, while reflective regions are positioned where power saving is prioritized and external light is sufficient. This local differentiation allows the display to optimize brightness and power consumption independently in different areas.
Solution Approach 2:
Each pixel section can operate in either transmissive or reflective mode, making the display panel multi-functional. The same physical structure serves dual purposes: generating light through the light source (transmissive mode) or reflecting external light (reflective mode), allowing the system to adapt to different lighting conditions and power requirements.
3Manufacturing precision
If the number of pixel sections is increased to improve image quality, then image quality is improved, but device complexity increases
Solution Approach 1:
The optical unit is positioned within or integrated with the display panel structure, with each optical element nested corresponding to specific pixel sections. This nested arrangement allows multiple functional elements (pixels, optical units, control circuits) to be compactly organized without increasing overall device footprint, thereby managing complexity while maintaining high image quality through increased pixel density.
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
This configuration enables reduced electric power consumption while maintaining high brightness and wide visible range, enhancing usability in portable devices by allowing both transmitted and reflected light to be viewed from any position, thus extending battery life without increasing device size or capacity.
Implementation Method 1
an optical unit disposed in front of the display panel for deflecting light emitted from the first and second pixels in the first direction
Implementation Method 2
a reflective region for reflecting the exterior light incident from the front to the optical unit
Data Source
AI summary
First pixels for the left eye and second pixels for the right eye in the semi-transmissive liquid crystal display panel are alternately disposed in the array direction of cylindrical lenses in a lenticular lens. A first transmissive region and a first reflective region are disposed in the first pixel for the left eye, and a second transmissive region and a second reflective region are disposed in the second pixel for the right eye. In this case, the first transmissive regions and the second reflective regions in the first pixels are alternately disposed and the second transmissive regions and reflective regions in the second pixels are alternately disposed in the longitudinal direction of the cylindrical lenses.