Writable projection screen
A projection screen and writing layer technology, applied in optics, instruments, electrical digital data processing, etc., can solve problems such as color distortion, affecting the visual sense and color saturation of the projection screen, and projection light gain, so as to achieve good reflection effect and enhance display quality effect
Inactive Publication Date: 2019-12-20
NANO PRECISION TAIWAN LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] As far as the common ways of making blackboards are concerned, one is to coat the blackboard paint material on the base material of the wood board, and then put it into the oven to heat and bake it. If the size is too large, it is not convenient to carry
The other is to apply more than two coats of blackboard paint on the cement wall, and wait for a few days to dry before use. This method must be limited to specific substrates, and there will be a bottleneck in mass production
[0003] On the other hand, since the current blackboard base material is wood board or cement wall, when used as a projection screen, the color of the bottom is dark green, which cannot be used to gain the projection light, which will affect the visual sense and color saturation of the projection screen, and cause color distortion
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only directions referring to the attached drawings. Accordingly, the directional terms are used to illustrate and not to limit the invention.
[0015] figure 1 It is a schematic diagram of a writable projection screen receiving projection beams according to an embodiment of the present invention. Please refer to figure 1 , The writable projection screen 100 of this embodiment includes a substrate 110 , a reflective layer 120 and a writing layer 130 . The reflective layer 120 is disposed on the substrate 110 , and in this embodiment, the reflective layer 120 is disposed between the substrate 110 and the writing layer 130 , fo...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A writable projection screen includes a substrate, a reflective layer, and a writing layer. The reflective layer is disposed on the substrate, and the writing layer has a light-receiving surface. Thelight-receiving surface is configured to receive a projection beam, and has a roughness between 5 [mu]m and 30 [mu]m. The substrate is disposed between the reflective layer and the writing layer, or the reflective layer is disposed between the substrate and the writing layer. The writable projection screen has good display quality and can also be used for a variety of pen writing.
Description
technical field [0001] The present invention relates to a projection screen, and in particular to a writable projection screen. Background technique [0002] As far as the current common way of making blackboards is concerned, one is to coat the blackboard paint material on the base material of the wood board, and then put it into the oven to heat and bake it. If the size is too large, it is not convenient to carry. The other is to apply more than two coats of blackboard paint on the cement wall, and then dry it for a few days before using it. This method must be limited to specific substrates, and there will be a bottleneck in mass production. [0003] On the other hand, since the current blackboard base material is wood or cement wall, when it is used as a projection screen, the color of the bottom is dark green, so it is impossible to gain the projection light, which will affect the visual sense and color saturation of the projection screen, and cause color distortion. ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/60
CPCG03B21/60G03B21/2066G03B21/62G06F3/0412G06F3/044
Inventor 苏方旋陈家骅许富强曾志能谢启堂
Owner NANO PRECISION TAIWAN LTD