Preparation method of dimming panel, dimming panel and dimming device
A dimming device and panel technology, which is applied in optics, nonlinear optics, instruments, etc., can solve the problems of high technological requirements and difficult realization of spacers
Pending Publication Date: 2022-07-26
BOE TECH GRP CO LTD +1
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Problems solved by technology
However, high box thickness requires high spacer technology, making it difficult to realize
Method used
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[0034] In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
[0035] In the related art, there are two types of spacers used to support the thickness of the dye liquid crystal dimming panel cell, a cylindrical spacer PS (PhotoSpacer) and a spherical spacer BS (Ball Spacer). Among them, the preparation process of BS is relatively simple. When using, BS can be directly sprayed on the surface of the substrate, and then it can be adhered to the surface of the substrate after curing at high temperature, such as figure 1 shown. The particle size of BS ranges from 1 μm to 100 μm. Although the particle size control range of BS is very wide, due to the characteristics of the production process, it is impossible to achieve uniform spraying on the entire surface. In the actual production process, loc...
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Abstract
The invention provides a preparation method of a dimming panel, the dimming panel and a dimming device.The dimming panel comprises a first substrate, a second substrate, liquid crystal and a spacer structure, the first substrate and the second substrate are arranged in a box-to-box mode, the space between the first substrate and the second substrate is filled with the liquid crystal, and the spacer structure is located between the first substrate and the second substrate. The spacer structure is used for maintaining the box thickness of the liquid crystal; the spacer structure comprises a first cylindrical spacer and a second cylindrical spacer which are arranged in a stacked mode, the first cylindrical spacer is arranged on the side, close to the second substrate, of the first substrate, and the second cylindrical spacer is arranged on the side, close to the first substrate, of the second substrate. The first surface of the first cylindrical spacer and the second surface of the second cylindrical spacer are opposite to each other and are in contact with each other, and the first cylindrical spacer and the second cylindrical spacer are the same in height. The columnar spacers are respectively manufactured on the first substrate and the second substrate which are oppositely arranged, and the spacers on the two substrates are overlapped to form a spacer structure, so that the dimming panel with high box thickness can be realized.
Description
technical field [0001] The present invention relates to the field of display technology, and in particular, to a preparation method of a dimming panel, a dimming panel and a dimming device. Background technique [0002] At present, dye liquid crystal dimming panels are more and more widely used in construction and transportation fields. The dye liquid crystal dimming panel utilizes the selective absorption of light by the dichroic dye molecules in the liquid crystal to realize the switching between the bright state and the dark state. [0003] In the related art, the contrast ratio of the dimming panel is generally improved by increasing the thickness of the liquid crystal cell. However, high cell thickness requires high spacer technology and is difficult to achieve. SUMMARY OF THE INVENTION [0004] The invention provides a preparation method of a dimming panel, a dimming panel and a dimming device, so as to realize a dimming product with a high cell thickness. [0005...
Claims
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Login to View More IPC IPC(8): G02F1/1339
CPCG02F1/13394G02F1/13415G02F2202/28
Inventor 张思凯王春雷于静
Owner BOE TECH GRP CO LTD