Blue Phase Liquid Crystal Display Panel Vertical Field Design
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Solution Overview
Problem
Conventional blue phase liquid crystal display apparatus require high driving voltage due to the non-uniform distribution of horizontal electrical field components, which affects transmissivity and increases energy consumption.
Innovation Solution
A display panel design featuring a blue phase liquid crystal layer sandwiched between substrates with vertically oriented electrodes and prism layers to deflect light, generating a uniform vertical electrical field that reduces the need for excessive driving voltage and simplifies the alignment process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transverse electrical field is used to extrude blue phase liquid crystal, then birefringence effect is produced, but excessive driving voltage is required due to non-uniform horizontal electrical field distribution
Solution Approach 1:
The patent inverts the conventional approach by using vertical electrical field instead of transverse electrical field to generate birefringence effect in blue phase liquid crystal. This inversion allows uniform field distribution and reduces driving voltage requirements while maintaining the birefringence effect necessary for display operation.
Solution Approach 2:
The patent changes the direction parameter of the electrical field from horizontal (transverse) to vertical, which fundamentally alters the field distribution characteristics. This parameter change transforms the non-uniform horizontal field into a uniform vertical field, enabling efficient operation at lower voltages.
2Illumination intensity
If voltage between electrodes is increased to ensure sufficient transmissivity, then liquid crystal transmissivity is improved, but driving voltage becomes excessive
Solution Approach 1:
The patent changes the orientation parameter of the electrical field from horizontal to vertical, which fundamentally improves the uniformity of field distribution across the liquid crystal layer. This parameter change enables sufficient transmissivity to be achieved at lower, more reasonable driving voltages.
3Illumination intensity
If horizontal electrical field component is used, then transmissivity is affected, but field intensity decreases away from electrodes requiring higher voltage
Solution Approach 1:
The patent inverts the field orientation from horizontal to vertical, which fundamentally resolves the non-uniformity issue. The vertical field configuration ensures that field intensity remains uniform throughout the liquid crystal layer, eliminating the need to compensate for field decay with excessive voltage.
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 achieves reduced driving voltage requirements, improved contrast, and simplified manufacturing by maintaining uniform electrical field intensity across the blue phase liquid crystal layer, enhancing transmissivity and dark state performance compared to conventional liquid crystal materials.
Implementation Method 1
The discovery of Kerr effect imparts new development of the liquid crystal display materials. Isotropic liquid crystal materials may produce induced refractive index in a direction of electrical field under the effect of the electrical field
Implementation Method 2
The light passing through the liquid crystal materials may be controlled by electric control birefringence
Implementation Method 3
a first prism layer located between the blue phase liquid crystal layer and the first polarizer and configured to deflect an incident light and direct the deflected incident light towards the blue phase liquid crystal layer
Data Source
AI summary
The present disclosure provides a display panel and a display apparatus. The display panel comprises: a first substrate and a second substrate opposed to each other; a blue phase liquid crystal layer arranged between the two substrates; a first polarizer located on a side of the first substrate away from the blue phase liquid crystal layer; a second polarizer located on a side of the second substrate away from the blue phase liquid crystal layer; a first electrode located on a side of the first substrate facing the blue phase liquid crystal layer; a second electrode located on a side of the second substrate facing the blue phase liquid crystal layer; a first prism layer located between the blue phase liquid crystal layer and the first polarizer; and a second prism layer located between the blue phase liquid crystal layer and the second polarizer.