CN215734592U

CN215734592U - 3LCD three-color liquid crystal board alignment adjustment control system

Info

Publication number: CN215734592U
Application number: CN202122082177.9U
Authority: CN
Inventors: 高鹏; 王荣磊; 马卫华; 王旭; 王大强
Original assignee: Nanyang Nanfang Intelligent Photoelectric Co ltd
Current assignee: Nanyang Nanfang Intelligent Photoelectric Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-02-01
Anticipated expiration: 2031-08-31

Abstract

The utility model relates to the technical field of advanced assembly, in particular to a scheme of alignment adjustment equipment for an R/G/B liquid crystal panel, and discloses a 3LCD three-color liquid crystal panel alignment adjustment control system. The system comprises an illumination module, an imaging module and an alignment module, wherein the illumination module comprises red, green and blue light sources, the imaging module comprises a lens, a polarizing plate, three liquid crystal plates, a prism assembly, a zoom lens and an imaging panel, and the prism assembly is fixed in front of the three liquid crystal plates. The utility model meets the requirement of overlapping pixels of the liquid crystal panel, realizes the production of the 3LCD optical engine, carries out the alignment by automatic signal processing and has high production efficiency.

Description

3LCD three-color liquid crystal board alignment adjustment control system

Technical Field

The utility model relates to the technical field of advanced assembly, in particular to a scheme of alignment adjustment equipment for an R/G/B liquid crystal panel, and discloses a 3LCD three-color liquid crystal panel alignment adjustment control system.

Background

3LCD optical engines each 3LCD optical path system is composed of 3 liquid crystal panels. The white light emitted by the lamp light source passes through the dichroic mirrors to form red light, green light and blue light, the three colors of light are respectively projected onto three corresponding liquid crystal plates, and the three primary colors of light are mixed through the middle prism to project images with different colors. The 3LCD technology focuses on fully spatially mixing three primary colors simultaneously and then projecting images of different colors. But cannot be produced if the effect of three-color mixing is not good.

The utility model with application publication number CN101750857A discloses an LCD projection display system, which includes a screen, an optical engine, a projection lens and an image sensor. The optical engine comprises a color separation guide mirror assembly, three liquid crystal display panels and an optical prism assembly, wherein the color separation guide mirror assembly separates white light emitted by a light source into three primary colors including red light, green light and blue light and guides each primary color to the corresponding liquid crystal display panel, each liquid crystal display panel generates a primary color optical image based on pixel information of a data image and modulation of incident primary color light, and the optical prism assembly combines three primary color images into a full-color optical image. The projection lens projects a full-color optical image generated by the optical engine onto the screen and allows infrared light from the screen to pass through. However, in the projection display system, when the three-color mixing effect caused by the improper positions of the three liquid crystal display panels is not good, the product is greatly affected.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a three-color liquid crystal panel alignment adjustment system capable of solving the spatial alignment problem of an R/G/B three-color liquid crystal panel, realizing the coincidence of three color images, and achieving an ideal imaging effect.

The utility model discloses a 3LCD three-color liquid crystal panel contraposition adjustment control system, which comprises an illumination module, an imaging module and a contraposition module, wherein the illumination module comprises red, green and blue light sources, the imaging module comprises a lens, a polarizing plate, three liquid crystal panels, a prism assembly, a zoom lens and an imaging panel, the prism assembly is fixed in front of the three liquid crystal panels, the contraposition module comprises a CCD element, far-end image processing software and a mechanical arm, the CCD element, namely an electronic coupling element, is arranged on the imaging panel, and the mechanical arm is respectively arranged on the liquid crystal panels.

Furthermore, the polarizing plates are respectively arranged in front of the lenses, the three liquid crystal panels are arranged close to the polarizing plates, and the zoom lens and the prism assembly are fixed in the same straight line.

Further, the imaging panel is installed at a position capable of presenting a clear image in front of the zoom lens.

Furthermore, the number of the CCD elements is at least three, and the CCD elements are respectively arranged at the positions which are centrosymmetric about the image on the imaging panel.

Further, the CCD element is connected with remote image processing software through wireless transmission, and the remote image processing software is connected with and controls the mechanical arm.

The utility model has the advantages that the three-color lamp light source is used for simulating the incident light of the projector light source, the lens is added in front of the three-color light source, the light source coverage is expanded, and the corner shadow is prevented. The liquid crystal panel and the polarizing plate are matched to realize the switching function. A plurality of CCD elements are arranged on the imaging panel, and the imaging definition can be visually distinguished through image processing software; a mechanical arm is arranged on the liquid crystal panel, and the liquid crystal panel can be automatically controlled by remote software to carry out alignment adjustment.

The utility model meets the requirement of overlapping pixels of the liquid crystal panel, realizes the production of the 3LCD optical engine, carries out the alignment by automatic signal processing and has high production efficiency.

Drawings

Fig. 1 is an overall structural view of the present invention.

Figure 2 is a diagram of an imaging panel of the present invention.

Fig. 3 is a block diagram of the utility model.

Detailed Description

In order that the contents of the utility model will be clear and easily understood, the utility model will be described below with reference to the accompanying drawings and examples.

Examples

As shown in fig. 1-3, the alignment adjustment control system for a 3LCD three-color liquid crystal panel according to the present invention comprises an illumination module, an imaging module and an alignment module, wherein the illumination module comprises a red light source 1, a green light source 2 and a blue light source 3, the imaging module comprises a lens 4, a polarizer 5, three liquid crystal panels 6, a prism assembly 10, a zoom lens 9 and an imaging panel 7, and the alignment module comprises a CCD element 8, a remote image processing software 11 and a robot arm 12.

Three polarizing plates 5 are respectively disposed in front of the lenses 4, three liquid crystal panels 6 are disposed adjacent to the polarizing plates 5, a prism assembly 10 is fixed in front of the three liquid crystal panels 6, and a zoom lens 9 is fixed in line with the prism assembly 10.

The CCD element 8, i.e. the electronic coupling element, is mounted on the imaging panel 7, and the imaging panel 7 is mounted at a position where a clear image can be presented in front of the zoom lens 8.

In the present embodiment, there are at least three CCD elements 8, and the CCD elements 8 are respectively mounted on the imaging panel 7 at positions that are centrosymmetric with respect to the image. The liquid crystal panels 6 are respectively mounted with the robot arms 12.

The CCD element 8 is connected with a remote image processing software 11 through wireless transmission, and the remote end of the image processing software 11 is connected with and controls a mechanical arm 12.

Note that, in the present embodiment, the zoom lens 9 is a zoom lens having an F number of 1.65; the mechanical arm 12 is a kohzu MPS series six-axis mechanical arm; the projection distance between the zoom lens 9 and the imaging panel 7 is 18 cm.

An imaging process:

red, green and blue lights emitted by the three-color light source respectively pass through the lens 4 to expand the light coverage of the lens on the polarizer 5; the three-color linearly polarized light beams are each incident on three liquid crystal panels 6 through polarizing plates 5, where the polarizing plates 5 function as switches by rotation; the single pixels on the liquid crystal panel 6 are combined into a full-color image through the prism assembly 10 arranged in the middle of the three liquid crystal panels 6; the full-color image is projected on the image plane through the zoom lens 9.

Signal image rendering:

four CCD elements 8 of the imaging panel 7 respectively obtain four optical pictures, and the definition of the whole picture is evaluated according to the imaging effect of the four optical pictures; when the image definition is low, three different optical signals of R/G/B are obtained through time sequence control, three colors of R/G/B are distinguished and displayed on a display screen, and the CCD element 8 can confirm the spatial imaging positions of the three colors of R/G/B by comparing the relative positions of the R/G/B through the CCD element 8.

Alignment adjustment:

according to the resolution of the imaging of the R/G/B on the CCD element 8, the image processing software 11 evaluates whether the liquid crystal panel 6 needs to advance or retreat to reach the position where the imaging is optimal;

the liquid crystal panel 6 is substantially aligned by the movement of the X, Y axes;

the results obtained by the four CCD elements 8 are used for comprehensively evaluating the R/G/B liquid crystal panel 6 to adjust the angle, so that the three liquid crystal panels 6 are imaged on one focal plane, and R/G/B single pixels can be superposed, and the R/G/B superposed liquid crystal panel 6 can synthesize any required color according to signals.

The alignment adjustment can be summarized as comparing the relative position of R/G/B by CCD signal, and feeding back to the signal processing software 11 to control the mechanical arm 12 to perform alignment adjustment.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that an element defined by the phrase "comprises an element defined by … … does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a 3LCD three-colour liquid crystal board counterpoint adjustment control system, includes lighting module, imaging module and counterpoint module, lighting module includes red, green, blue trichromatic lamp light source, imaging module includes lens, polarizing plate, three liquid crystal board, prism subassembly, zoom and imaging panel, the prism subassembly is fixed threely before the liquid crystal board, its characterized in that, counterpoint module includes CCD component, distal end image processing software and arm, the CCD component, electron coupling component promptly, install on imaging panel, the arm is installed respectively on the liquid crystal board.

2. The system as claimed in claim 1, wherein the polarizers are respectively disposed in front of the lenses, three of the liquid crystal panels are disposed adjacent to the polarizers, and the zoom lens is fixed in line with the prism assembly.

3. The system as claimed in claim 2, wherein the image forming panel is installed in a position where a clear image is formed in front of the lens.

4. The system of claim 3, wherein there are at least three CCD elements, and the CCD elements are respectively installed at positions on the imaging panel that are centrosymmetric with respect to the image.

5. The 3LCD three-color liquid crystal panel alignment adjustment control system as claimed in claim 4, wherein the CCD element is connected to a remote image processing software through wireless transmission, and the image processing software is connected to and controls the robot arm remotely.