LCD Front Face Plate Half-Transmissive Section for Resin Curing
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Solution Overview
Problem
In liquid crystal displays, the use of a light shielding resin layer between the front face plate and the liquid crystal display panel can lead to frame-like unevenness and display quality issues due to uncured resin remaining in the light shielding section, causing stress imbalance and thickness changes in the display region.
Innovation Solution
A front face plate with a half-transmissive section having a lower transmittance than the transmissive section and higher than the light shielding section is used, with the half-transmissive section positioned between the transmissive and light shielding sections, allowing light to be partially absorbed and ensuring even curing of the resin layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a light shielding resin layer is used between the front face plate and the liquid crystal display panel, then light shielding characteristics are improved, but frame-like unevenness is generated due to uncured resin remaining in the light shielding section
Solution Approach 1:
The front face plate is divided into three distinct sections with different light transmittance characteristics: a transmissive section for the display region, a light shielding section for the frame region, and a half-transmissive section in between. This local differentiation allows each region to perform its specific function while enabling uniform resin curing across the entire front face plate surface.
Solution Approach 2:
The half-transmissive section acts as an intermediary between the transmissive and light shielding sections. It receives light from the transmissive section and partially transmits it to the resin layer, ensuring sufficient light reaches the resin for uniform curing while maintaining the light shielding function in the frame region.
2Reliability
If the light shielding section is formed on the front face plate, then image quality is improved, but stress balance is lost due to uncured resin material remaining in the light shielding section
Solution Approach 1:
By creating a half-transmissive section with intermediate light transmittance properties, the patent enables differential light distribution across the front face plate. The resin layer receives sufficient light in the half-transmissive section to cure properly, while the light shielding section maintains its optical blocking function, thus achieving both image quality and stress balance.
3Ease of manufacture
If a resin layer is cured by light irradiation from the front face plate side, then bonding is achieved, but frame-like unevenness is caused by uncured resin in the light shielding section
Solution Approach 1:
The front face plate incorporates a half-transmissive section that provides intermediate light transmission characteristics. This allows the resin layer to receive adequate light for curing in regions where it is needed, while maintaining the light shielding function in the frame section, thereby achieving uniform thickness and eliminating frame-like unevenness.
Solution Approach 2:
The half-transmissive section serves as an optical intermediary that facilitates uniform resin curing across the front face plate. It transmits light from the transmissive section to the resin layer in the half-transmissive and light shielding sections, ensuring consistent curing without compromising the light shielding characteristics.
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
This configuration inhibits display unevenness around the display region, maintaining stress balance and improving display quality without compromising light shielding characteristics.
Implementation Method 1
the resin material is cured by performing light irradiation from the front face plate side
Implementation Method 2
the half-transmissive section having a lower transmittance than the transmissive section and higher than the light shielding section
Data Source
AI summary
A liquid crystal display device with a front face plate having a first section, a second section, and a third section is disclosed. The first section has a light transmissive section and the second section being a light shielding section. The third section may be arranged between the first section and the second section. The third section has a transmittance value which is lower than that of the first section and higher than that of the second section. A method for forming a front face plate assembly of a liquid crystal display device, which may include a front face plate, is also disclosed.