Flexible Circuit Display Assembly with Integrated LED Controller
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Solution Overview
Problem
Digital devices with display screens face increased manufacturing costs due to the inclusion of discrete LEDs, and some devices lack the processing power or memory to perform light-simulated barcode processing without compromising performance.
Innovation Solution
A display screen assembly featuring a flexible circuit with integrated LED, LED controller, and screen driver, where the controller handles light-simulated barcode processing, reducing the burden on the device's processor and memory, and allowing for the use of discrete LEDs at lower costs by mounting them directly on the flexible circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If discrete LEDs are included in digital devices for light-simulated barcode processing, then barcode communication capability is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines the LED, LED controller, and screen driver into a single integrated display screen assembly mounted on one flexible circuit. This merging reduces the number of separate components and assembly steps, thereby reducing manufacturing cost while maintaining the barcode communication capability through the integrated LED system.
Solution Approach 2:
The display screen assembly serves multiple functions: it provides the display screen for normal operation, includes an LED for light-simulated barcode processing, and integrates control circuits for both functions. This multi-functionality eliminates the need for separate barcode processing components, reducing manufacturing cost while maintaining versatility.
2Device complexity
If LED controller and screen driver are integrated on the same flexible circuit, then device complexity is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The LED controller and screen driver are both mounted on the same flexible circuit as the display screen and LED, creating a single integrated assembly. This merging reduces device complexity by eliminating separate circuit boards and connections, while the standardized mounting process on the flexible circuit maintains reasonable manufacturing precision requirements.
3Power
If processor handles light-simulated barcode processing, then processing capability is improved, but device performance is compromised due to limited processing power and memory
Solution Approach 1:
The patent segments the barcode processing function from the main processor by using a dedicated LED controller on the display screen assembly. This segmentation allows barcode processing to occur independently without burdening the main processor, thereby maintaining device performance while providing the necessary processing capability for light-simulated barcodes.
Data Source
AI summary
A display screen assembly is suitable for use in a digital device that lacks the processing power, memory, or both needed to carry out light-simulated bar code processing. The display screen assembly includes a display screen having a display area and mounted to a flexible circuit. The flexible circuit includes numerous conductive circuit traces including terminal ends, and various electronic components such as a controller and a screen driver. The various components may be covered by a cover layer, and the display screen including the display area may be covered by a sheet of transparent material. An LED may be generally positioned near an edge or corner of the display screen, and may be may be controlled by a digital device processor or by the controller on the flexible circuit, as desired, for producing light-simulated bar codes.