Spliced LCD Display Frame Area LED Integration
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Solution Overview
Problem
The challenge is to reduce the visual splicing seams in LCD splicing screens, which are a major concern for manufacturers due to cost and reliability issues with other display technologies like OLED and mini-LED splicing screens, while maintaining high reliability and low costs.
Innovation Solution
The solution involves using two spliced LCD panels with LED chips disposed in the frame areas where they are joined, utilizing a backlight module and chip-on-film technology to minimize the seam visibility, and employing passive matrix or active matrix driving modes to simplify the driving circuit and reduce manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LCD panels are used for splicing screens, then cost and reliability are improved, but visual splicing seams appear in the frame area
Solution Approach 1:
The patent combines LCD display technology with LED light source technology by integrating LED chips into the frame area of LCD panels. This merging allows the frame area, which traditionally cannot display images, to become an active display region that can eliminate visual splicing seams while maintaining the reliability and cost advantages of LCD technology.
Solution Approach 2:
The patent transitions from a two-dimensional display area to a three-dimensional structure by placing LED chips on the substrate in the frame area. This dimensional expansion allows light emission from the frame region, enabling image display in previously non-functional areas and thereby reducing splicing seam visibility.
2Object-affected harmful factors
If LED chips are disposed in the frame area to reduce splicing seams, then visual continuity is improved, but device complexity increases
Solution Approach 1:
The substrate serves multiple functions: it acts as the base for the LCD panel structure and simultaneously supports LED chip mounting and electrical connections. This multi-functionality reduces the need for additional components and simplifies the overall device structure despite adding LED functionality to the frame area.
Solution Approach 2:
The patent uses scan lines and data lines as intermediaries to connect LED chips to the driving circuit. These existing LCD panel conductors are repurposed to provide electrical connections to the LED chips, avoiding the need for separate complex wiring systems and simplifying the integration process.
3Area of stationary object
If LED chips are integrated into LCD panels, then display area is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent performs preliminary actions by pre-arranging the positions of LED chips on the substrate and pre-establishing the scan line and data line routing before final assembly. This preliminary planning and positioning reduces the precision requirements during the actual manufacturing process by ensuring all components are correctly placed before integration.
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
This approach effectively reduces the splicing seams by displaying images through the LED chips in the frame areas, enhancing the reliability and cost-effectiveness of the spliced display device while maintaining high display continuity and resolution.
Implementation Method 1
a plurality of LED chips, disposed in the first frame area
Data Source
AI summary
The present disclosure provides a spliced display device. The spliced display device includes two liquid crystal display (LCD) panels and a plurality of light-emitting diode (LED) chips. Each LCD panel includes a first frame area. The first frame areas of the two LCD panels are disposed adjacent to each other. The LED chips are disposed in the first frame area.