Edge-Mounted LED Selfie Illumination Module Structure
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Solution Overview
Problem
Existing mobile phone solutions for taking selfies in dark environments result in low light supplementation brightness, reduced LED light lifetime, high power consumption, and delayed selfie speed due to limitations in space and current supply.
Innovation Solution
A module structure incorporating a backlight sheet, display screen, glass cover, light guide plate, LED lights, and flexible circuit board, where LED lights are positioned away from the display area and electrically connected to the flexible circuit board, allowing for low-current illumination and conversion of line light to a flat light source for enhanced brightness without affecting screen ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If momentary high current is outputted to the backlight LED light to achieve brightest white picture, then light supplementation brightness is improved, but LED light lifetime is reduced
Solution Approach 1:
The patent introduces a new spatial dimension by placing LED lights in the gap between the glass cover and display screen, utilizing the Z-axis space rather than increasing current. This dimensional change allows adding light supplementation function without affecting existing backlight system, achieving brighter illumination while maintaining normal operating current to extend LED lifetime.
Solution Approach 2:
The patent segments the lighting function into two independent systems: the original backlight LED for display illumination and additional edge-mounted LED lights for selfie illumination. This segmentation allows each LED system to operate independently at appropriate current levels, enabling the selfie LED to provide enhanced brightness without subjecting it to excessive current that would reduce lifetime.
2Illumination intensity
If twice regular supply current is supplied to achieve brightest white picture, then light supplementation brightness is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by positioning LED lights only at the edges of the display screen where they can provide directional illumination for selfies. This localized approach concentrates light output where needed for face illumination while minimizing overall power consumption, rather than increasing current across the entire backlight system.
3Ease of operation
If a plurality of signals are excited to trigger selfie function, then light supplementation function is achieved, but selfie speed is delayed
Solution Approach 1:
The patent merges the selfie illumination control with the existing display control system by using the same flexible circuit board and control signals. This integration allows the selfie LED to be activated simultaneously with the display for selfie mode, eliminating signal processing delays and enabling instant selfie capture when the display is already active.
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
Achieves three times higher brightness with reduced power consumption and extended LED light lifetime, ensuring clear selfies without delaying normal display operations.
Implementation Method 1
LED lights, and a flexible circuit board disposed between the display screen and the glass cover
Implementation Method 2
a light guide plate, LED lights, and a flexible circuit board disposed between the display screen and the glass cover, where the LED lights are located on a side of the light guide plate facing away from a display area
Data Source
AI summary
A module structure and a display device are disclosed. The module structure includes a backlight sheet, a display screen, and a glass cover which are stacked, and further includes a light guide plate, LED lights, and a flexible circuit board disposed between the display screen and the glass cover, the LED lights are located on a side of the light guide plate facing away from a display area, and the LED lights are electrically connected to the flexible circuit board.