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Two-piece LCD projector

a two-piece, projector technology, applied in projectors, color television details, instruments, etc., can solve the problems of low cost performance and high cost performance of two-piece lcd projectors, and achieve the effects of improving the energy conversion simple structure and increased efficiency of the second lcd light valve modul

Active Publication Date: 2020-12-10
NANHUA INTELLIGENT PRECISION MACHNE (SHENZHEN) CO LTD
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Benefits of technology

The patent text describes a new LCD projector and method that solves a technical problem of low light efficiency in the existing LCD technology. The new two-piece LCD projector improves energy efficiency without compromising color quality or contrast. The first LCD light valve module has a theoretical CF efficiency of 33.3% when illuminated by red and blue lights, while the second module has a theoretical CF efficiency of 100% under green light. The technical platform remains simple and cost-effective, with no higher technology or equipment requirements. Overall, the two-piece LCD projector has practical and feasible applications.

Problems solved by technology

The two-piece LCD projector is low in cost and high in cost performance, and has no higher requirements on the manufacturing industry chains of the most upstream CF and TFT of the existing LCD light valve module.

Method used

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Embodiment Construction

[0019]Preferred embodiments of the disclosure will be described in detail in conjunction with drawings.

[0020]Referring to FIG. 1, FIG. 1 shows a principle structure of a two-piece LCD projector according to the disclosure. The two-piece LCD projector includes a red light source 1, a spotlighting device 2, a blue LED light source 3, a spotlighting device 4, a red and blue light converging device 5, a focusing lens 6, a first LCD light valve module 7, a green LED light source 8, a spotlighting device 9, a focusing lens 10, a second LCD light valve module 11, a red, green and blue light converging device 12, a field lens 13 and a projection lens 14,

[0021]The basic principle of the two-piece LCD projector is as follows: lights emitted by the red LED light source 1 and the blue LED light source 3 are converged by respective spotlighting devices 2 and 4 and then reach the red and blue light converging device 5, the lights are converged by the red and blue light converging device 5 and the...

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Abstract

Provided is an LCD projector. The LCD projector includes including a first LCD (liquid crystal display) light valve module and a second LCD light valve module. The first LCD light valve module simultaneously provides a red field image and blue field image in space, and the second LCD light valve module provides complete green field image. The red field pixel of the first LCD light valve module and the corresponding pixel of the second LCD light valve module coincide in space to generate a yellow image. The blue field pixel of the first LCD light valve module and the corresponding pixel of the second LCD light valve module are coincided in space to generate a cyan image. White and full-color images are reproduced by yellow and cyan lights.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to Chinese Patent Application No. 201910490596.0 with a filing date of Jun. 5, 2019. The content of the aforementioned applications, including any intervening amendments thereto, are incorporated herein by reference.TECHNICAL FIELD[0002]The disclosure relates to a two-piece LCD (liquid crystal display) projector.BACKGROUND OF THE PRESENT INVENTION[0003]For a long time, people habitually classify projectors based on characteristics of a light valve, one of the most core devices of the projector in general, such as a DLP (digital light processing) projector, an LCD (liquid crystal display) projector, an LCOS (liquid crystal on silicon) projector, which are common at present.[0004]The common LCD projectors refer to having two characteristics: the light valve adopts an LCD technology (for distinguishing DLP) and is of a transmission type (for distinguishing LCOS). The LCD projector generally has two principles...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G03B33/08G03B21/00G03B21/20
CPCG03B21/006G03B33/08G03B21/2033G03B21/2013H04N9/3164H04N9/3141G02B27/1006
Inventor GUO, HANWEN
Owner NANHUA INTELLIGENT PRECISION MACHNE (SHENZHEN) CO LTD
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