Configurable Multi-Electrode Pixels for Light Modulating Backplanes
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Solution Overview
Problem
Conventional light modulating backplanes face limitations in achieving high resolution due to the size of pixel control circuits, leading to increased cost and power consumption when attempting to enhance pixel density.
Innovation Solution
The implementation of configurable multi-electrode pixels that utilize a first set of dot electrodes during one field and a second set of dot electrodes during another field, with interlacing schemes such as bob or quincunx interlacing, allowing a single pixel control circuit to control different pixels in different frames, thereby increasing effective resolution without the need for a proportional increase in pixel control circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pixel density is increased to achieve higher resolution, then resolution is improved, but the number of pixel control circuits must increase proportionally, leading to increased cost and power consumption
Solution Approach 1:
Each pixel control circuit is designed to control multiple dot electrodes through time-division multiplexing. The circuit selectively activates different dot electrodes during different time intervals (first field and second field), allowing a single control circuit to serve multiple pixels and achieve higher effective resolution without proportionally increasing the number of control circuits
Solution Approach 2:
The system uses periodic time-division multiplexing where pixel control circuits alternate between controlling different dot electrodes in different fields. During a first field, certain dot electrodes are activated while during a second field, different dot electrodes are activated, creating a periodic pattern that enables multi-pixel control from single circuits
2Device complexity
If the number of pixel control circuits is reduced to lower cost and power consumption, then cost and power consumption are reduced, but resolution capability is limited
Solution Approach 1:
The system dynamically reconfigures which dot electrodes are controlled by which pixel control circuits on a field-by-field basis. This dynamic time-division multiplexing allows a reduced number of pixel control circuits to effectively control a larger number of dot electrodes, achieving high resolution with fewer physical control circuits
Solution Approach 2:
The invention adds a time dimension to the control architecture by using alternating fields (first field and second field) to activate different dot electrodes. This temporal dimension allows pixel control circuits to control multiple dot electrodes sequentially, effectively increasing resolution capability without increasing the spatial number of control circuits
Data Source
AI summary
A light modulating Backplane with configurable multi-electrode pixels is disclosed. The configurable multi-electrode pixel includes a first set of dot electrodes in a first field and a second set of dot electrodes in a second field. Generally, dot electrode is included in both the first set of dot electrodes and the second set of dot electrodes. For example, a pixel control circuit coupled to a dedicated dot electrode. A first dot electrode is coupled to the pixel control circuit by a first dot electrode connection circuit and a second dot electrode is coupled to the pixel control circuit by a second dot electrode connection circuit. During the first field the first dot electrode connection circuit is active while the second dot electrode connection circuit is inactive. During the second field, the first dot electrode connection circuit is inactive while the second dot electrode connection circuit is active.