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Capacitive touch control type short focus projection curtain and projection system

A capacitive touch and short-focus projection technology, applied in the field of short-focus projection, can solve the problems of few touch points, low touch sensing precision, and inconvenience.

Inactive Publication Date: 2019-01-25
烟台市谛源光科有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the infrared touch method, although the production is simple, but the number of touch points is small, and the touch sensing precision is low, and the effect is poor. At the same time, the infrared touch frame is limited by the size of the infrared LED lamp, and the frame is thick and wide, reducing the visual effects
[0004] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

Method used

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  • Capacitive touch control type short focus projection curtain and projection system
  • Capacitive touch control type short focus projection curtain and projection system
  • Capacitive touch control type short focus projection curtain and projection system

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] see image 3 , the present invention provides a capacitive touch-type short-focus projection screen, including a substrate 1, an optical texture layer and a light-absorbing layer 3; a reflective layer 4 is also provided on the optical texture layer. The optical texture layer acts as an anti-light. The material of the substrate can be soft material or hard material.

[0026] A capacitive touch structure 7 is provided between the substrate 1 and the optical texture layer; the capacitive touch structure 7 includes a capacitive touch film layer.

[0027] The optical texture layer is a Fresnel...

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Abstract

The invention relates to the technical field of short-focus projection, and provides a capacitive touch control type short-focus projection screen and projection system, comprising a substrate, an optical grain layer and a light-absorbing layer. The optical grain layer is also provided with a reflective layer. A capacitive touch control structure is arranged between the substrate and the optical grain layer. The capacitive touch control structure comprises a capacitive touch control film layer. The invention also provides a projection system with a capacitive touch control type short-focus projection screen, comprising a central processor connected with a projector, and the central processor is also connected with an ordinate signal detection unit for detecting the touch position of the capacitive touch control type short-focus projection screen. Thus, the capacitive touch control structure is arranged between the substrate and the Fresnel lens layer; and the projection screen has an excellent touch control function and anti-ambient light effect at the same time. The capacitive touch structure and a Fresnel anti-light projection screen structure are also combined. Based on the projection hard screen structure, a touch control projection display screen with high precision and fast response can be realized.

Description

technical field [0001] The invention relates to the technical field of short-focus projection, in particular to a capacitive touch-type short-focus projection screen and a projection system. Background technique [0002] Short-focus anti-light projection screens can be divided into soft screens and hard screens. The soft screen can be rolled, and it is mainly black grid or line grid projection screen, with the texture structure facing outward. The hard screen cannot be folded, mainly Fresnel projection screen (such as figure 1 ), the texture structure faces inward, and the anti-light effect is better. [0003] see figure 2 , in the existing technology, there is a touch screen projection display system, which includes a projection hard screen, an infrared touch screen 61 , a projector 6 and a control device 62 . Among them, the projection hard screen reflects image information; the infrared touch frame senses the touch action and produces the corresponding electrical sig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
CPCG06F3/044
Inventor 廖巧生黄少云
Owner 烟台市谛源光科有限公司
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