Display Panel Shift Register Stacking for Narrow Frame
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Solution Overview
Problem
Current display panel technologies face challenges in narrowing the frame due to the inability to compress the space occupied by driving circuits, which limits the reduction of the frame width and affects the display panel's screen ratio and wiring complexity.
Innovation Solution
The arrangement of shift registers from the driving circuit into the display region allows for a reduction in the non-display region's width, enabling a narrower frame by positioning pixel circuits closer to the edge of the display panel and reducing the connection distance between light-emitting elements and pixel circuits, thereby simplifying wiring and improving display uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the driving circuit is placed in the frame region, then the display area is maximized, but the frame width cannot be narrowed due to the space occupied by the driving circuit
Solution Approach 1:
The patent moves the driving circuit from the frame region (horizontal dimension) into the display region, utilizing the vertical dimension by stacking the driving circuit beneath the pixel circuit. This dimensional transition allows the driving circuit to share the display region space without increasing the overall frame width, effectively resolving the contradiction between maximizing display area and narrowing frame width.
Solution Approach 2:
The driving circuit is nested within the display region by positioning it underneath the pixel circuit in the vertical stacking direction. This nesting approach allows both the driving circuit and pixel circuit to coexist within the same horizontal footprint, enabling frame narrowing while maintaining full display area utilization.
2Ease of manufacture
If the pixel circuit is positioned away from the edge to accommodate the driving circuit, then the driving circuit can be housed, but the connection distance between light-emitting elements and pixel circuits increases leading to wiring complexity
Solution Approach 1:
By transitioning to a stacked architecture where the driving circuit is positioned in the vertical dimension beneath the pixel circuit, the patent allows the pixel circuit to extend to the display region edge in the horizontal plane. This maintains short connection distances for wiring while accommodating the driving circuit in the vertical stacking direction, thereby reducing wiring complexity.
Solution Approach 2:
The patent merges the driving circuit and pixel circuit into a integrated stacked structure within the display region. This combination allows both circuits to be positioned closely together, minimizing the connection distance between light-emitting elements and pixel circuits while housing the driving circuit functionally, thus reducing wiring complexity.
Data Source
AI summary
Provided are a display panel and a display device. The display panel has a display region and includes a substrate, light-emitting elements located in the display region, pixel circuits, and at least one driving circuit. The light-emitting elements, the pixel circuits and the at least one driving circuit are located at a side of the substrate. The light-emitting elements are connected to the pixel circuits, and each driving circuit includes shift registers. The pixel circuits includes at least one first pixel circuit including a first driving circuit, and the at least one first pixel circuit and at least one shift register are located in the display region. In the display region, the at least one first pixel circuit is arranged at a side of the shift registers of the first driving circuit close to an edge of the display panel.