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Mark for visual detection and electronic instrument

A visual inspection and marking technology, applied in instruments, markings, electrical solid devices, etc., can solve the problems of inability to use, impossible to grasp the contact area between leads, too fine, etc., to achieve the effect of improving efficiency

Inactive Publication Date: 2003-04-09
TOHOKU PIONEER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is impossible to grasp the quality of the contact area between the leads by visual inspection, and the above-mentioned calibration marks for position adjustment are too fine to be used when visual inspection is used to confirm defects.
Therefore, defective products such as obvious crimping defects can only be eliminated in the visual inspection process, and the burden on the microscopic inspection process cannot be reduced.

Method used

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  • Mark for visual detection and electronic instrument
  • Mark for visual detection and electronic instrument
  • Mark for visual detection and electronic instrument

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Experimental program
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Embodiment Construction

[0025] Embodiments of the present invention will be described below with reference to the drawings. figure 1 It is an explanatory diagram of an embodiment of the present invention, showing a form in which electronic components are mounted on a display panel. In the figure, 1 is an organic EL display panel, 2 and 3 are TAB substrates, and 4 is a flexible substrate.

[0026] On the panel substrate 10 of the organic EL display panel 1, lead wires 10b, 10c constituted as signal lines are drawn out from the screen area 10a, and the lead wires 10b, 10c are respectively bundled, and the TAB substrate 2, 10c are respectively connected to the connection areas 11, 12 3 leads 2a, 3a. 2b and 3b represent driving ICs mounted on the TAB substrates 2 and 3 .

[0027] The leads 2 c and 3 c on the flexible substrate 4 side of the TAB substrates 2 and 3 are connected to the connecting lines of the flexible substrate 4 on the connection areas 13 and 14 of the flexible substrate 4 . In additi...

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PUM

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Abstract

In the neighborhood of each connecting region 11, 12, 13, 14 of a panel substrate, a TAB substrates 2, 3, and a flexible substrate 4, marks 15a-15d, 20a-20d, 30a-30d, 40a-40d for a visual inspection are provided at a preset distance apart from the connecting region. According to the present marks, inferior products can be eliminated with a high accuracy in a step of the visual inspection after completing a connection of display panel. Thus, workload in a step of microscope inspection after the step of the visual inspection can be reduced.

Description

technical field [0001] The present invention relates to a mark for visual inspection and an electronic device including a display panel, a TAB substrate, or a flexible substrate provided with the mark for visual inspection. Background technique [0002] Due to the popularization of mobile phones and portable information terminals (PDA), small and thin display panels with high display capabilities are required, and liquid crystal display panels and organic EL (electroluminescent) display panels are used as displays that can meet this requirement. panel. [0003] In order to improve the display capability of such a display panel, it is of course necessary to improve the light control characteristics or light emission characteristics of each display unit, and how to mount electronic components on the display panel with high precision becomes an important reason. [0004] refer to Figure 5 The process of assembling electronic components to the above-mentioned display panel wil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1345G01R31/04G09F9/00H01L21/60H01L51/50H05B33/12H05K1/02H05K3/00H05K3/36H05K13/08
CPCG01R31/043H05K3/361H05K1/0269H05K2201/09918H05K2203/166H05K2201/09781G01R31/68G09F9/00
Inventor 大峡秀隆
Owner TOHOKU PIONEER CORP