Display Apparatus Light Adjusting Component Contrast
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Solution Overview
Problem
Liquid crystal displays (LCDs) face challenges in achieving high contrast due to limitations in backlight module design, leading to inadequate bright and dark state effects, which affects manufacturing costs and weight, and restricts high-precision brightness adjustment.
Innovation Solution
A display apparatus comprising a backlight component, a light adjusting component with a liquid crystal layer and driving circuit, and polarizing films to control polarized light transmission, allowing for high-intensity light in bright states and blocking light in dark states, improving contrast without increasing manufacturing costs or weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a direct-type backlight design with increased quantity of light sources is used, then the contrast performance is improved, but the manufacturing cost and overall weight are significantly increased
Solution Approach 1:
The patent replaces the mechanical approach of increasing light source quantity with an optical control approach using liquid crystal molecules to adjust light transmission. The light adjusting component uses liquid crystal layer to control the transmission of polarized light from the backlight, achieving high contrast without additional light sources, thus reducing weight and manufacturing complexity.
Solution Approach 2:
The patent changes the parameter of light transmission by using liquid crystal molecules that can rotate their orientation in response to electrical signals. This allows dynamic control of light transmission intensity without adding physical light sources, enabling high contrast ratio while maintaining a lightweight design.
2Reliability
If a direct-type backlight design with increased quantity of light sources is used, then the contrast performance is improved, but the manufacturing cost is significantly increased
Solution Approach 1:
The patent replaces the mechanical approach of increasing light source quantity with an optical control approach using liquid crystal molecules to adjust light transmission. The light adjusting component uses liquid crystal layer to control the transmission of polarized light from the backlight, achieving high contrast without additional light sources, thus reducing weight and manufacturing complexity.
Solution Approach 2:
The light adjusting component serves multiple functions: it controls light transmission intensity, adjusts contrast ratio, and can be integrated into existing LCD panels without requiring separate high-precision brightness adjustment mechanisms, thereby reducing manufacturing cost.
3Ease of manufacture
If a relatively small quantity of light sources are configured in the backlight module, then manufacturing cost and weight are reduced, but high-precision brightness adjustment cannot be implemented
Solution Approach 1:
The patent replaces the mechanical approach of increasing light source quantity with an optical control approach using liquid crystal molecules to adjust light transmission. The light adjusting component uses liquid crystal layer to control the transmission of polarized light from the backlight, achieving high contrast without additional light sources, thus reducing weight and manufacturing complexity.
Solution Approach 2:
The patent employs dynamic control of liquid crystal molecule orientation through electrical signals to achieve precise brightness adjustment. The liquid crystal layer can be electrically controlled to rotate molecules and thereby dynamically adjust light transmission intensity, providing high-precision brightness control without requiring a large quantity of light sources.
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 enhances display contrast by effectively managing light intensity through polarized light control, enabling better bright and dark state effects while reducing manufacturing costs and weight, thus improving the overall display performance.
Implementation Method 1
the liquid crystal layer is disposed between the first substrate and the second substrate, and configured to deflect the vibration direction of polarized light
Implementation Method 2
The first polarizing film is disposed between the light adjusting component and the display panel, and configured to transmit polarized light whose vibration direction is the same as a transmission direction of the first polarizing film
Data Source
AI summary
A display apparatus includes a backlight component, a light adjusting component, a display panel, and a first polarizing film. The backlight component is configured to generate polarized light. The light adjusting component is disposed on one side of the backlight component, and is configured to deflect or not deflect polarized light generated by the backlight component. The first polarizing film is disposed between the light adjusting component and the display panel. In the display apparatus) provided in this application, when the polarized light obtained after passing through the light adjusting component passes through the first polarizing film, if a vibration direction of the polarized light is consistent with a transmission direction of the first polarizing film, the polarized light can be transmitted. If the vibration direction of the polarized light is perpendicular to the transmission direction of the first polarizing film, the polarized light cannot be transmitted.