Reflective Mold Light Sensor Stabilization in Display Devices
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Solution Overview
Problem
Existing display devices face issues with light sensors being undesirably moved due to external shocks, leading to inconsistent luminance compensation in OLED and LCD displays, which affects image quality.
Innovation Solution
A display device design that incorporates a light sensing portion with uneven portions on the display panel surface to direct reflected light to a fixed light sensor, secured by a reflective mold and housing, ensuring consistent light detection path even under external shocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light sensor is placed on the display panel side to detect light intensity, then luminance compensation can be achieved, but the light sensor may be undesirably moved by external shocks
Solution Approach 1:
A reflective mold is introduced as an intermediary component between the display panel and the light sensor. The reflective mold includes a light guiding portion that directs light from the display panel to the light sensor, and a fixing portion that secures the light sensor in place. This intermediary structure both protects the light sensor from displacement and maintains the optical path for accurate light detection.
2Stability of the object's composition
If the light sensor is secured to the bottom portion, then the light sensor position is fixed, but the light detection path may be affected by the distance and angle
Solution Approach 1:
The reflective mold introduces a spatial dimension solution by using a light guiding portion with specific geometric features (inclined surfaces) to redirect light from the display panel to the light sensor. This optical path engineering in three-dimensional space ensures that even when the light sensor is fixed at a distance from the display panel, it can still receive light at the appropriate angle for accurate detection.
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
Prevents movement of the light sensor during external shocks, maintaining consistent light detection and enabling effective luminance compensation, thus enhancing image quality by maintaining optimal luminance levels.
Implementation Method 1
The light sensing portion may detect light that is totally reflected from the display panel and is emitted from a side of the display panel
Implementation Method 2
a reflecting portion connecting the substrate seating portion with the panel support portion and reflecting light emitted from a side of the display panel, thus guiding the light to the light sensor
Data Source
AI summary
A display device is disclosed. In one aspect, the device includes a display panel including a display region and a non-display region and a housing accommodating the display panel therein. The device also includes a light sensing unit interposed between the display panel and the housing, the light sensing unit facing the display panel in the non-display region. The light sensing unit is configured to detect light that is totally reflected from the display panel and is emitted from a side of the display panel.