Eccentric Driver Substrate Positioning for Display Devices
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Solution Overview
Problem
Existing display devices with multiple substrate units face challenges in accurately adjusting the position of substrates due to the limitations of screw rod adjustments, which result in image quality issues like emission and dark lines at unit boundaries, and require cumbersome screw rod exchanges for precise positioning.
Innovation Solution
A display device and substrate adjusting method utilizing an eccentric driver with a tip portion on an axis different from the central axis of a grip, which inserts into a long and narrow hole in the substrate, allowing for precise positioning adjustments within a predetermined range and fixing the substrate to a base position using a base position fixing unit, along with optional heat dissipation and external fixing units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a screw rod is used to adjust the position of substrate units, then the position can be adjusted along the axial direction, but the adjustment amount per unit angle is excessively large making correct positioning difficult
Solution Approach 1:
The patent changes the adjustment mechanism from a standard screw rod with fixed pitch to an eccentric driver where the adjustment amount can be varied by changing the insertion position of the grip within the long hole. This allows the effective eccentricity radius to be adjusted, thereby changing the adjustment amount per rotation angle to achieve both coarse and fine positioning without exchanging components.
Solution Approach 2:
The patent introduces a dynamic adjustment mechanism where the grip can be positioned at different locations along the long hole of the jig. This makes the adjustment system dynamically adaptable, allowing the operator to select different effective eccentricities based on the required adjustment precision, transforming a static screw pitch into a variable adjustment parameter.
2Measurement precision
If the screw groove interval is reduced to achieve smaller adjustment amounts, then positioning precision improves, but the screw rod must be removed and exchanged, increasing working hours and man-hours
Solution Approach 1:
The patent makes the single jig and eccentric driver combination multi-functional by allowing the grip to be inserted at various positions within the long hole. This single component system can provide both large adjustment increments (when grip is near the end) and fine adjustment increments (when grip is closer to the insertion port), eliminating the need for multiple screw rods with different pitches and the time-consuming exchange process.
Solution Approach 2:
The long hole structure of the jig serves multiple purposes: it guides the grip insertion, allows positioning at different locations for different adjustment ranges, and maintains the structural integrity of the jig. The system uses its own structure (the long hole) to provide the variable adjustment capability without requiring external components or complex mechanisms.
3Manufacturing precision
If multiple jigs are provided on each side of the substrate, then position adjustment capability is enhanced, but device complexity increases
Solution Approach 1:
The patent divides the position adjustment function into multiple independent jig units that can be distributed along the sides of the substrate. Each jig operates independently with its own eccentric driver, allowing localized adjustment of different sections of the substrate. This segmentation enables precise control of substrate position without requiring a single complex centralized adjustment mechanism.
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
Enables accurate and efficient adjustment of substrate positions, improving image quality by eliminating position shifts and facilitating maintenance through varied adjustment resolutions without the need for frequent screw rod exchanges.
Implementation Method 1
an eccentric driver 310 having a tip portion 312 on an axis different from a central axis of a grip 311
Data Source
AI summary
There is provided a display device including a jig that is provided with an insertion port into which a tip portion of an eccentric driver having the tip portion on an axis different from a central axis of a grip is inserted, a substrate that is provided with a long hole into which the grip is inserted, the long hole being long and narrow, a position of the substrate relative to the jig being movable within a predetermined movable range by rotation of the eccentric driver, the tip portion and the grip of the eccentric driver being inserted, and a base position fixing unit that fixes the substrate to a predetermined base position within the movable range.