Display Panel Heating Line Layout for Low-Temperature Response
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Solution Overview
Problem
Liquid crystal displays (LCDs) face significantly longer response times and visual ghosting issues in low-temperature environments due to the high viscosity of liquid crystal, affecting display quality.
Innovation Solution
A display panel design incorporating first and second heating line groups, with first heating lines extending parallel to data lines and intersecting with second heating lines, forming closed loops, and connected to heating bonding terminals, allowing for efficient heating and reducing production costs and bezel size by sharing a flexible circuit board with data line connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heating lines are added to improve low-temperature display performance, then response time is reduced and ghosting is eliminated, but device complexity and manufacturing cost increase
Solution Approach 1:
The heating lines are integrated into the existing data line structure, with first heating lines extending parallel to data lines and second heating lines intersecting them to form closed loops. This merging approach allows the heating function to be added without requiring completely separate heating circuitry, thus improving low-temperature display reliability while limiting the increase in device complexity
Solution Approach 2:
The heating lines serve dual purposes: they function as both data transmission lines and heating elements. The first and second heating line groups form closed loops that can be controlled to provide localized heating in the display area, enabling the same conductive structures to perform multiple functions and reducing overall system complexity
2Reliability
If heating lines are added to reduce response time in low temperature, then display performance improves, but production cost increases
Solution Approach 1:
The heating lines are formed using the same conductive layer structures as the data lines, allowing both functions to be manufactured in the same process steps. The first heating line group extends from the display area to the peripheral area parallel to data lines, while the second heating line group intersects them, creating closed loops that can be manufactured without additional fabrication steps
Solution Approach 2:
The conductive structures serve dual purposes as both data transmission lines and heating elements. By making the data lines themselves capable of functioning as heating lines through proper electrical connection and control, the patent eliminates the need for separate heating electrode structures, thereby reducing material costs and manufacturing complexity
3Reliability
If heating lines are added to eliminate visual ghosting, then display quality improves, but bezel size increases
Solution Approach 1:
The heating lines are arranged in a two-dimensional grid pattern within the display area, with first heating lines extending in one direction and second heating lines intersecting them in the perpendicular direction. This dimensional arrangement allows the heating function to be distributed throughout the display area without requiring additional peripheral space, thus eliminating visual ghosting while maintaining compact bezel dimensions
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
The design improves display quality in low-temperature environments by reducing response time and ghosting, while minimizing bezel size and production complexity, and enhancing heating efficiency.
Implementation Method 1
a second conductive layer, located on a side of the first conductive layer facing away from the substrate and including at least one first heating line group
Data Source
AI summary
The present application provides a display panel, including: a substrate, including a display area and a peripheral area surrounding the display area; a first conductive layer, located on a side of the substrate and including a plurality of data lines located in the display area; and a second conductive layer, located on a side of the first conductive layer facing away from the substrate and including at least one first heating line group, the first heating line group includes at least one first heating line, the first heating line extends from the display area to the peripheral area, and the first heating line extends in a direction same as the data line.