Touch-Sensitive Display Module Rear Surface Integration
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Solution Overview
Problem
Conventional touch-sensitive display apparatuses face space occupancy issues and reduced brightness due to the placement of transmission lines and touch panels over the display area, affecting the overall performance and aesthetics.
Innovation Solution
A display panel design where the touch-sensitive device is positioned on a separate surface from the display area, with electrical connections via connectors and transmission lines that allow both the display panel and touch-sensitive device to be connected to a circuit board without obstructing the display area, thereby minimizing space usage and maintaining brightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the touch panel and transmission lines are disposed on the display area, then the touch-sensitive functionality is achieved, but the brightness of the displayed frame is adversely affected and space is greatly occupied
Solution Approach 1:
The patent positions the touch-sensitive device on the rear surface of the display panel body rather than on the front display area. This spatial relocation from the front plane to the rear plane allows the touch functionality to coexist with the display area without obstructing light output, thereby resolving the brightness issue while maintaining compact form factor
2Ease of operation
If the touch panel is disposed on the display area, then touch sensitivity is achieved, but the display brightness is reduced due to obstruction
Solution Approach 1:
The touch-sensitive device is relocated to the rear surface of the display panel, utilizing the z-dimension (depth) rather than occupying the front display plane. This allows touch input functionality to be maintained while eliminating visual obstruction to the display area, preserving both touch sensitivity and display brightness
Solution Approach 2:
The display panel is divided into distinct functional zones: the front surface for display output and the rear surface for touch-sensitive input. This segmentation separates the light-emitting function from the touch-detection function, allowing both to operate optimally without interfering with each other
3Reliability
If separate transmission lines are used for display panel and touch panel, then electrical connectivity is achieved, but space occupancy is greatly increased
Solution Approach 1:
The patent integrates the transmission lines of both the display panel and the touch-sensitive device into a single shared transmission line. This consolidation allows both functional components to communicate with the circuit board through one common pathway, significantly reducing the space required for routing while maintaining reliable electrical connectivity for both display and touch functions
Data Source
AI summary
A display panel is adapted to being combined with a touch-sensitive device and being electrically connected to a circuit board. The display panel includes a first body and a first connector. The first body has a display area, a first surface and a second surface. The first surface is opposite to the second surface and the display area is located on the first surface. The first connector is electrically connected to the first body and the first body is adapted to being electrically connected to the circuit board via the first connector. The first body is adapted to being electrically connected to the touch-sensitive device such that the touch-sensitive device is adapted to being electrically connected to the circuit board via the first body and the first connector. Furthermore, a touch-sensitive display module including a display panel and a touch-sensitive device is also provided.