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a marking device

A marking unit and backlight unit technology, applied in printing devices, typewriters, printing, etc., can solve problems such as poor precision, laser human eye interference, etc., to achieve the effect of reducing interference, avoiding excessive fatigue, and ensuring accuracy

Inactive Publication Date: 2016-11-23
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the accuracy of the existing marking method is poor, and the generated laser light is likely to interfere with human eyes

Method used

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Embodiment Construction

[0027] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0028] In the description of the present invention, it should be noted that unless otherwise specified, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", "inner ", "outside", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the inventi...

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Abstract

The invention relates to the technical field of display, in particular to a marking device. The marking device comprises a machine table, a backlight unit, marking units and a driving unit. A substrate to be marked is adsorbed and fixed to the machine table. The backlight unit is arranged below the substrate, and backlight for marking the bad area of the substrate is formed. The marking units are moved to the bad area of the substrate for marking under the action of the driving unit. According to the marking device, the marking backlight is designed on the back face of the substrate, backlight signing is carried out on the bad area of the substrate through the backlight unit before marking, and therefore the interference of lasers to the human eyes is reduced. Meanwhile, one-key marking is completed through the cooperation of the marking units, and finally the bad area is precisely marked.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a marking device. Background technique [0002] At present, in the CF (color filter) production process, in order to ensure the quality of the product, there is a visual inspection machine on each production line to confirm whether there are quality problems in the currently produced products, that is, to check whether there are Bad macro. For the detected defect (mura), it needs to be measured to determine whether the defect meets the specification, and the mura must be marked before the measurement to confirm the specific mura position, and then the characteristic value of the mura area is measured using the measuring equipment. The current marking method for mura is as follows: the inspector detects the mura and adjusts the best angle, and marks the coordinates on the upper and lower sides of the mura by moving the laser to clamp the mura area, and then displays on the displ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J3/00B41J3/407B41J29/18
Inventor 马永增沈庆鹤成学佩尹冬冬吴斌
Owner BOE TECH GRP CO LTD