Device and method for measuring warping degree of substrate, touch screen and manufacturing method of touch screen

A measuring device and warpage technology, which is applied in the direction of measuring devices, optical devices, and data processing input/output processes, can solve problems such as easy generation of bubbles, easy fall-off, and impact on the yield of external touch screens, and achieve improvement. Yield rate and productivity improvement effect

Active Publication Date: 2015-01-28
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
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  • Abstract
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  • Application Information

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Problems solved by technology

When the touch panel with a large warpage is bonded to the display panel with a large warpage, air bubbles are likely to be generated, and the touch panel with a large

Method used

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  • Device and method for measuring warping degree of substrate, touch screen and manufacturing method of touch screen
  • Device and method for measuring warping degree of substrate, touch screen and manufacturing method of touch screen
  • Device and method for measuring warping degree of substrate, touch screen and manufacturing method of touch screen

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Example Embodiment

[0048] The specific implementations of the measuring device and measuring method of the warpage degree of the substrate, the touch screen and the manufacturing method provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0049] An embodiment of the present invention provides a device for measuring the warpage of a substrate, such as figure 1 shown, including: at least one laser 1 ( figure 1 Only one laser is shown) and a charge-coupled device 2 (Charge Coupled Device, CCD) which is in one-to-one correspondence with the laser 1 and is fixedly connected;

[0050] Laser 1, for emitting laser light to the surface to be measured of substrate 3 at a preset incident angle;

[0051] The charge-coupled element 2 is used to receive the laser light emitted by the corresponding laser 1 and reflected on the surface to be measured on the substrate 3 .

[0052] Based on the same inventive concept, an embodiment...

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Abstract

The invention discloses a device and method for measuring the warping degree of a substrate, a touch screen and a manufacturing method of the touch screen. The measuring device comprises at least one laser device and charge coupling elements which correspond to the laser devices in a one-to-one mode and are fixedly connected with the laser devices. The measuring device is moved in a plane parallel to the surface, to be measured, of the substrate, lasers emitted by the laser devices irradiate multiple measuring points of the surface to be measured, and the lasers are received by the charge coupling elements after being reflected at the measuring points. According to the position offset of the lasers irradiating to the laser incidence faces of the charge coupling elements, the distance of a reference point, the preset incident angles of the lasers emitted by the laser devices and the position relation between the laser devices and the corresponding charge coupling elements are preset, and the warping degree of all the measuring points can be obtained rapidly and accurately. In the manufacturing process of the touch screen, the warping degree of a touch panel and the warping degree of a display panel are measured through the measuring device, the warping degrees of the two panels are controlled strictly, only the two panels with smaller warping degrees are attached to each other, and the yield of the touch screen can be improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a measuring device and method for warpage of a substrate, a touch screen and a manufacturing method. Background technique [0002] According to the composition and structure, the touch screen can be divided into: Add on Mode Touch Panel, On Cell Touch Panel, and In Cell Touch Panel. Wherein, the plug-in touch screen is formed by laminating a touch panel and a display panel. [0003] At present, the manufacturing process of the plug-in touch screen specifically includes the following steps: first, make the touch panel and the display panel respectively; then, remove the centrifugal film on the surface of the touch panel and the display panel respectively; The control panel and the display panel are cleaned separately; after that, the water glue is applied to the entire surface of the touch panel where the centrifugal film is removed, and the frame glue is applied to the non-disp...

Claims

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Application Information

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IPC IPC(8): G01B11/16G06F3/041
Inventor 刘大鹏程威王刚高坤飞
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD
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