Light Emitter Shifting Unit Block Control
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Solution Overview
Problem
Existing light emitters with multiple light emitting points require a large number of shift signal lines and complex driving mechanisms, leading to increased size and complexity, especially when the number of light emitting points increases, as the shifting operation takes longer to set points closer to the trailing portion.
Innovation Solution
A light emitter design that includes a shifting unit with multiple starting points and blocks, where a single shift signal line is shared across blocks, allowing for the selection of blocks to undergo the shift operation based on shift signals, reducing the number of shift signal lines and shortening the time to set light emitting points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of light emitting points increases, then the light emitter provides more lighting options, but the number of shift signal lines increases and the device size becomes larger
Solution Approach 1:
The light emitter is divided into multiple blocks, each block containing multiple light emitting points. This segmentation allows the system to control groups of light emitting points independently, reducing the total number of shift signal lines needed while maintaining the ability to address individual points within each block.
Solution Approach 2:
The patent introduces a block selection signal line that operates in addition to the shift signal lines. This adds a dimensional layer to the control structure, where block selection signals choose which block is active, and shift signal lines then control specific points within that block. This two-dimensional control approach (block selection + shift operation) reduces the total signaling requirements.
2Adaptability or versatility
If the number of light emitting points increases, then the light emitter provides more lighting options, but the number of shift signal lines increases and driving complexity increases
Solution Approach 1:
By segmenting the light emitter into blocks with shared control resources, the driving complexity is reduced. Each block can be controlled independently through the shared shift signal lines, allowing the system to manage a large number of light emitting points without proportionally increasing the complexity of the driving circuitry.
Solution Approach 2:
The shift signal lines serve multiple functions: they select blocks via the block selection signal line and simultaneously control the shift operation within the selected block. This multi-functionality reduces the total number of dedicated signal lines needed, thereby reducing driving complexity while maintaining versatility.
3Ease of operation
If shift operation is performed from leading portion to trailing portion in order, then all light emitting points can be set, but points closer to trailing portion take more time to be caused to light
Solution Approach 1:
Dividing the light emitter into multiple blocks allows parallel or rapid sequential processing of different blocks. Instead of sequentially processing all light emitting points from leading to trailing portion, the system can quickly select and process specific blocks containing the target light emitting points, significantly reducing the time required to set distant points.
Solution Approach 2:
The block selection signal line enables preliminary selection of the block containing the target light emitting point before the shift operation begins. This preliminary action allows the system to prepare and activate only the relevant block, avoiding the time penalty of sequentially processing all blocks or points from the leading portion.
Data Source
AI summary
A light emitter includes: a light emitting unit that has multiple light emitting points; and a shifting unit that sets in a shift operation the light emitting points that are to be lit by the light emitting unit. The shifting unit includes multiple starting points where the shift operation starts, multiple blocks that undergo the shift operation from the starting points, and a shift signal line that is commonly arranged for the blocks and selects a block that undergoes the shift operation in response to a shift signal.