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A kind of liquid crystal photomask and its application

A photomask and liquid crystal technology, applied in the photomask field, can solve problems such as no application, and achieve the effects of wide application range, high precision controllability, and reduction of environmental pollution

Active Publication Date: 2017-02-22
十二秒融媒体(山东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the above-mentioned masks are all used in the field of lithography, and have no application in the field of printing

Method used

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  • A kind of liquid crystal photomask and its application
  • A kind of liquid crystal photomask and its application
  • A kind of liquid crystal photomask and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see figure 1, this specific embodiment 1 provides a liquid crystal photomask, characterized in that the photomask includes an imaging controller (not shown), a light uniform layer 107, a light guide layer 106, a first optical deflection plate 101, a liquid crystal layer 103 and a second optical deflector 102; the liquid crystal layer 103 is sandwiched between the first optical deflector 101 and the second optical deflector 102; the liquid crystal layer 103 is a twisted nematic liquid crystal layer . A first transparent electrode layer 104 is provided on the surface of the first optical deflector 101 in contact with the liquid crystal layer 103 ; a second transparent conductive layer 105 is provided on the surface of the second optical deflector 102 in contact with the liquid crystal layer 103 . The light guide layer 106 organizes the incident light into parallel light, and the parallel light enters the first optical deflection film 101 , and the light guide layer 106 i...

Embodiment 2

[0037] see image 3 , this specific embodiment 2 provides a kind of liquid crystal photomask, it is characterized in that, described photomask comprises, imaging controller, light homogeneous layer 207, light guiding layer 206, first optical deflection plate 201, liquid crystal layer 203 and the second optical deflector 202; the liquid crystal layer 203 is sandwiched between the first optical deflector 201 and the second optical deflector 202; the liquid crystal layer 203 is a twisted nematic liquid crystal layer. A first transparent electrode layer 204 is arranged on the surface of the first optical deflector 201 in contact with the liquid crystal layer 203; a second transparent conductive layer 205 is arranged on the surface of the second optical deflector 202 in contact with the liquid crystal layer 203; The angle between the polarization direction of the optical deflector 201 and the second optical deflector 202 is 90 degrees; the light guide layer 206 is arranged on the l...

Embodiment 3

[0041] see Figure 4 , this specific embodiment, 3 provides a kind of liquid crystal photomask, it is characterized in that, described photomask comprises, imaging controller, light uniform layer 307, light guide layer 306, first optical deflection film 301, liquid crystal layer 303 and the second optical deflector 302; the liquid crystal layer is sandwiched between the first optical deflector 301 and the second optical deflector 302; the liquid crystal layer 303 is a twisted nematic liquid crystal layer. A first transparent electrode layer 304 is arranged on the surface of the first optical deflector 301 in contact with the liquid crystal layer 303; a second transparent conductive layer 305 is arranged on the surface of the second optical deflector 302 in contact with the liquid crystal layer 303; The angle between the polarization direction of the optical deflector 301 and the second optical deflector 302 is 90 degrees; the light guide layer 306 is arranged on the light inci...

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Abstract

A liquid crystal photomask and application thereof. The photomask includes an imaging controller, an optical uniform layer, a light guide layer, a first optical deflector, a liquid crystal layer and a second optical deflector; the liquid crystal layer is sandwiched between the first optical deflector and the second optical deflector between the sheets; the first transparent electrode layer is arranged on the surface of the first optical deflection sheet in contact with the liquid crystal layer; the second transparent conductive layer is arranged on the surface of the second optical deflection sheet in contact with the liquid crystal layer; the first optical deflection The angle between the polarizing direction of the sheet and the second optical deflector is 90 degrees; the light guide layer is arranged on the light incident side of the first optical deflector, and the light uniform layer is arranged on the light incident side of the light guide layer side. The invention provides a liquid crystal photomask capable of realizing multi-mask overprinting without changing masks, high precision, adjustable precision, good stability and long-time working.

Description

technical field [0001] The invention relates to a photomask, in particular to a liquid crystal photomask and its application. Background technique [0002] In the printing process, plate making is the link that takes the longest time, the most complicated process, and the highest cost in the whole process. Accurate plate making is the key to high-quality printing; One of the most important links in the circuit board preparation process is also the most expensive part of the entire process. There are four common photomasks, chrome plate, dry plate, letterpress and liquid letterpress. The photomask is mainly composed of two parts, a light-transmitting substrate and an opaque material. The existing mask plates, once prepared, have fixed light-shielding and light-transmitting regions, so they are only suitable for specific devices to be exposed. Depending on the complexity of the prepared devices, multiple sets of photomasks are usually required to realize the exposure proces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1333G02F1/1335G02F1/13357G03F1/00G03F7/20
Inventor 杨涛
Owner 十二秒融媒体(山东)有限公司
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