Polarizing plate assembly and projector containing the polarizing plate assembly

Abstract

The invention provides a polarizing plate assembly which comprises a polarizing plate and a temperature measuring part. The temperature measuring part is provided with a temperature measuring probe. The temperature measuring probe is fixed to the edge of the polarizing plate, makes tight contact with the polarizing plate and is used for measuring the temperature of the polarizing plate. The temperature of the polarizing plate of the polarizing plate assembly can be measured accurately, so that the temperature of the polarizing plate is conveniently monitored in real time, and the problem that the polarizing plate is burnt out due to too high temperature is prevented. In addition, the invention further provides a projector with the polarizing plate assembly.

Description

technical field [0001] The invention relates to the field of projectors, in particular to a polarizer assembly and a projector containing the polarizer assembly. Background technique [0002] A large part of the current projectors use LCDs, because LCD projectors have the advantage of more vivid colors. LCDs mainly use polarizers to absorb excess light. However, polarizers emit heat when they absorb light, resulting in the temperature of the polarizers However, the temperature of the polarizer should not be too high, too high will burn the polarizer. Since the polarizers are all installed inside the projector, it is difficult to control the temperature of the polarizers. Only when the polarizers are burned out can we know that the temperature is too high, and the price of the polarizers is relatively expensive, and the replacement cost is high, which increases use cost. Contents of the invention [0003] In view of this, it is necessary to provide a polarizing plate asse...

AI Technical Summary

Problems solved by technology

[0002] A large part of the current projectors use LCDs, because LCD projectors have the advantage of more vivid colors. LCDs mainly use polarizers to absorb excess light. However, polarizers emit heat when they absorb light, resulting in the temperature of the polarizers However, the temperature of the polarizer should not be too high, too high will burn the polarizer

Since the polarizers are all installed inside the projector, it is difficult to control the temperature of the polarizers. Only when the polarizers are burned out can we know that the temperature is too high, and the price of the polarizers is relatively expensive, and the replacement cost is high, which increases usage cost

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