Touch screen laminating detection device and laminating method thereof
A technology for laminating equipment and touch screens, which is applied in the optical field, can solve the problems of touch panel touch function and lifespan, and the inability to detect whether it is vacuum lamination, etc., to achieve accurate and stable mass production.
Active Publication Date: 2019-07-05
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology
However, since the production environment is a vacuum and the airtight cavity cannot detect whether it is vacuum bonded, it may cause problems in the touch function and life of the touch panel 1 product.
Method used
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[0022] Reference in the detailed description to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The same terms appearing in different positions in the specification are not necessarily limited to the same implementation, but should be understood as independent or alternative implementations from other embodiments. Inspired by the technical solutions disclosed in the embodiments provided in the present invention, those skilled in the art should understand that the embodiments described in the present invention may have other combinations or changes of technical solutions consistent with the concept of the present invention.
[0023] Please refer to figure 2 as shown, figure 2 It is a block flow chart of detecting touch screen bonding equipment and substrate bonding process in the present invention. The present invention provides a touch scre...
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The invention discloses a touch screen laminating detection device and a laminating method thereof. The touch screen laminating detection device comprises a light emitter and a light receiver, the light emitter is arranged above a cover plate and emits light signals to the cover plate, the optical receiver is arranged above the cover plate, the distance formula of the optical signal is 2Dsec theta= rt, and the distance between the optical transmitter and the cover plate is a first distance. At the normal atmospheric pressure, the cover plate is placed on the frame sealing glue, at the time, the t is measured to be the first time; when the cavity has a preset pressure value, a frame pasting process is carried out, at this time, t is measured to be the second time. The second time meets thedistance formula, and the distance D between the light receiver and the touch panel is obtained to be the second distance, so that the volume of the cavity is obtained. The volume is substituted intoan ideal gas equation, so that whether the preset pressure value meets the standard value or not is known. Therefore, the normal function of the touch screen is ensured, and the touch screen has longer service life.
Description
technical field [0001] The invention relates to the field of optical technology, in particular to a bonding device for detecting touch screens and a bonding method thereof. Background technique [0002] Existing capacitive touch screens are all produced in a full lamination method. The material cost, equipment cost and yield rate cost of this method are very expensive, resulting in a low market share. Such as figure 1 As shown, the liquid crystal panel 3 is set on the touch panel 1 . Coating the sealant 11 on the touch panel 1, through the vacuum environment and the external atmospheric pressure P, the thickness of the air layer 21 between the protective cover 2 and the touch panel 1 is reduced and stably bonded, so that the touch functioning normally. However, since the production environment is a vacuum and the airtight cavity cannot detect whether it is vacuum-bonded, it may cause problems in the touch function and lifespan of the touch panel 1 product. Contents of t...
Claims
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Login to View More IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0412G06F3/0414G06F3/044G06F2203/04105
Inventor 郑净远
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD