Display Panel Driving Circuit Integration for Narrow Bezel
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Solution Overview
Problem
Existing display panels face challenges in achieving improved display quality and expanding the display region while maintaining a narrow bezel.
Innovation Solution
The display panel incorporates a base layer, a circuit layer with multiple driving circuits, and a light emitting element layer. The circuit layer includes a scan driving circuit, an emission control driving circuit, and pixel circuits, with light emitting elements electrically connected to the pixel circuits. This configuration allows for efficient signal transmission and improved connection reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If driving circuits are disposed in the non-display region, then the display region can be expanded, but the distance between light emitting elements and pixel circuits increases, degrading display quality
Solution Approach 1:
The patent applies dimensionality change by moving driving circuits from the peripheral non-display region into the display region, specifically placing them between pixel circuits in the vertical direction. This spatial reconfiguration allows the display region to be maximized while maintaining short connection distances, as the driving circuits are now positioned within the display area rather than outside it.
Solution Approach 2:
The patent implements nesting by embedding the driving circuits within the display region structure, specifically positioning them between pixel circuits. This nested arrangement allows the driving circuits to occupy space that would otherwise be used for pixel circuits, enabling both functions to coexist in the same vertical space without increasing the overall display area.
2Manufacturing precision
If driving circuits are disposed between pixel circuits in the vertical direction, then connection distance is reduced and display quality improves, but the circuit layer becomes more complex
Solution Approach 1:
The patent applies segmentation by dividing the pixel circuits into multiple groups (first pixel circuits and second pixel circuits) with driving circuits positioned between them. This segmentation allows each driving circuit to serve a specific group of pixel circuits, reducing connection distances and improving signal integrity while organizing the complex circuit layer into manageable, functionally distinct segments.
3Area of stationary object
If the bezel is made narrower to expand the display region, then the display area increases, but the space for peripheral circuits is reduced
Solution Approach 1:
The patent utilizes vertical space within the display region to position driving circuits, moving them from the horizontal peripheral area into the vertical space between pixel circuits. This dimensional shift allows the bezel to be narrowed while still accommodating all necessary driving circuits within the display area, effectively using the third dimension (vertical arrangement) to resolve the space constraint.
Data Source
AI summary
A display panel includes a base layer, a circuit layer disposed on the base layer and including a first driving circuit, a second driving circuit, and a plurality of pixel circuits, and a light emitting element layer disposed on the circuit layer and including a plurality of light emitting elements, each of the plurality of light emitting elements electrically connected to corresponding one of the plurality of pixel circuits. In a first direction, each of the first driving circuit and the second driving circuit is disposed between the plurality of pixel circuits.