Color Separation Element Light Shielding Drive Circuit
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Solution Overview
Problem
Display devices with integrated circuits (ICs) can malfunction when exposed to strong light, as the drive circuit is not effectively protected from intense illumination.
Innovation Solution
Incorporating a color separation element between the display panel and the light source device, which disperses light into different wavelengths and includes a light-shielding region to block emitted light from reaching the drive circuit, thereby preventing malfunctions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light source device emits strong light toward the display panel, then the display brightness is improved, but the drive circuit may malfunction due to excessive light exposure
Solution Approach 1:
The color separation element is divided into multiple functional regions: a separation region that disperses light into different wavelengths for the display panel, and a light-shielding region that blocks light from reaching the drive circuit. This segmentation allows different parts of the same component to perform different functions, solving the contradiction between providing sufficient display brightness and protecting the drive circuit from light exposure.
Solution Approach 2:
The color separation element acts as an intermediary component positioned between the light source device and the display panel. It selectively transmits certain wavelengths of light to the display panel while blocking light from reaching the drive circuit, thus mediating the light path to simultaneously achieve display brightness and drive circuit protection.
2Reliability
If a color separation element is added to protect the drive circuit, then the drive circuit reliability is improved, but the device structure becomes more complex
Solution Approach 1:
The color separation element combines multiple functions into a single component: light dispersion for color separation, light shielding for drive circuit protection, and structural integration with the display panel and light source device. By merging these functions into one element, the design reduces overall structural complexity compared to using separate components for each function.
Solution Approach 2:
The color separation element serves multiple purposes simultaneously: it separates light into different wavelengths for display, shields the drive circuit from light exposure, and integrates with the existing display structure. This multi-functionality reduces the need for additional separate components, thereby managing device complexity while achieving multiple protective and functional goals.
3Measurement precision
If light is dispersed into multiple wavelengths for display, then the color accuracy is improved, but the light intensity reaching the display panel is reduced
Solution Approach 1:
The separation region of the color separation element is designed to optimize the dispersion of light into different wavelengths while maintaining sufficient light intensity for display. By adjusting parameters such as the refractive index, thickness, and geometric configuration of the separation region, the system achieves both color accuracy and adequate light intensity for display visibility.
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
The solution effectively suppresses drive circuit malfunctions even under high light intensity by ensuring that only filtered, wavelength-specific light reaches the display panel, enhancing light utilization efficiency and preventing light from directly hitting the IC.
Implementation Method 1
the color separation element being configured to disperse the emitted light and to emit, to the pixel, a plurality of rays of separated light with wavelengths different from each other
Implementation Method 2
a light-shielding region configured to block the emitted light heading toward the drive circuit
Data Source
AI summary
A display device includes a display panel including a pixel and a drive circuit configured to drive the pixel, a light source device configured to emit emitted light toward the display panel, and a color separation element placed between the display panel and the light source device, the color separation element being configured to disperse the emitted light and to emit, to the pixel, a plurality of rays of separated light with wavelengths different from each other. The color separation element includes a separation region configured to emit the separated light and a light-shielding region configured to block the emitted light heading toward the drive circuit.