Display Panel Measurement Using Pre-Classified Polarizer Formulas
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Solution Overview
Problem
Conventional display panel measurement methods are cumbersome, time-consuming, resulting in low data accuracy, low reliability, and low work efficiency due to the need for multiple disassembly and re-attachment of polarizers.
Innovation Solution
A method involving determining target positions on a display panel that meet specific conditions, measuring brightness information under constant voltage, and calculating display efficiency using formulas that account for various polarizer configurations to improve measurement accuracy and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional measurement methods are used requiring multiple disassembly and re-attachment of polarizers, then measurement completeness can be achieved, but measurement time increases and work efficiency decreases
Solution Approach 1:
The patent applies preliminary action by pre-classifying display panels into different types (first type with normal polarizer arrangement, second type with inverted polarizer arrangement) before measurement. This classification is done in advance based on design specifications, so that during actual measurement, the appropriate formula can be directly selected without needing to disassemble and reattach polarizers multiple times to determine the panel type, thus reducing measurement time while maintaining measurement completeness.
Solution Approach 2:
The patent implements dynamics by providing different measurement formulas dynamically selected based on the display panel type. Instead of using a fixed measurement procedure that requires multiple disassembly steps, the system adapts the calculation method according to the pre-identified panel type, making the measurement process flexible and efficient while ensuring accurate measurement results for different panel configurations.
2Measurement precision
If multiple disassembly and re-attachment operations are performed on polarizers, then comprehensive brightness data can be obtained, but work efficiency decreases
Solution Approach 1:
The patent applies preliminary action by pre-determining the display panel type and selecting the appropriate measurement formula before actual measurement. This eliminates the need for multiple disassembly and re-attachment operations to gather comprehensive brightness data, as the single measurement can be processed using the pre-selected formula corresponding to the panel type, thereby maintaining data accuracy while significantly improving work efficiency.
Solution Approach 2:
The patent uses copying by establishing mathematical models (formulas) that replicate the effect of multiple physical measurements. Instead of actually disassembling and reattaching polarizers to obtain different brightness values, the system uses calculated models that copy the expected measurement outcomes based on panel type, thus obtaining comprehensive data without the time-consuming physical operations.
3Measurement precision
If conventional measurement procedures are used, then all brightness parameters can be measured, but reliability of measurement process decreases
Solution Approach 1:
The patent applies preliminary action by pre-classifying display panels into types with different polarizer arrangements and pre-matching appropriate measurement formulas to each type. This eliminates the variability and potential errors associated with manual disassembly and re-attachment operations, making the measurement process more reliable. The pre-established correspondence between panel types and formulas ensures that the correct measurement approach is always applied, maintaining parameter completeness while improving process reliability.
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 approach reduces measurement time, enhances data accuracy, and increases work efficiency by eliminating the need for multiple disassembly processes while maintaining reliable data processing.
Implementation Method 1
the liquid crystal acts as a voltage-controlled light valve, which directly affects the light transmittance
Implementation Method 2
optical and electrical anisotropy of the liquid crystal molecules is caused
Data Source
AI summary
A method and a system of measuring a display panel, and a display panel. The display panel includes a backlight module and a liquid crystal panel. The method of measuring the display panel includes determining a target position on a display panel that meets a preset condition, wherein the target position includes a first target position and a second target position, and a connecting line of the first target position and the second target position is parallel to a row of sub-pixels. The method further includes measuring brightness information at the target position under a constant applied voltage, wherein the brightness information includes brightness information of the backlight module and brightness information of the display panel, and a display efficiency of the display panel is calculated according to the brightness information.