Unlock instant, AI-driven research and patent intelligence for your innovation.

System and method of inspecting display panel

A display panel and inspection system technology, applied to static indicators, instruments, optics, etc., can solve problems such as unqualified lighting and damaged display panels, and achieve accurate and efficient inspection results

Inactive Publication Date: 2019-09-17
SHARP KK
View PDF11 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the lighting failure of the display panel, there are the following problems: damage to the display panel, line defects caused by disconnection of scanning lines or signal lines, short circuits, and impurities inward due to the forming process of the display panel. Defects in the display panel such as lighting failure due to contamination of
However, when the lighting failure of the display panel is detected by image processing in this way, even if foreign matter such as dust or dirt adheres to the surface of the display panel, it may be judged as lighting failure.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method of inspecting display panel
  • System and method of inspecting display panel
  • System and method of inspecting display panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039]

[0040] A display panel inspection system 10 (hereinafter, sometimes simply referred to as "inspection system 10") as a first embodiment of the present invention is as follows: figure 1 shown. The inspection system 10 mainly includes an inspection device 12 for inspecting a liquid crystal panel included in a liquid crystal module M as a display device, and the inspection device 12 has a cleaning function added thereto. The inspection system 10 is configured to include a mounting table 16 on which the liquid crystal module M to be inspected or the components in assembly of the liquid crystal module M ( figure 1The liquid crystal module M is placed in it. ); camera 18, it is arranged on the top of this loading platform 16; Cleaning device 20, it is carried on the liquid crystal assembly M of loading platform 16 to clean; Arbitrary position movement on the above; and the control device 24, which is responsible for its own control. That is to say, in the inspection sy...

Embodiment 2

[0066] Next, the liquid crystal panel inspection system 90 of the second embodiment is as Figure 8 (a) shown. The inspection system 10 of the first embodiment is an inspection device with a cleaning function, but the inspection system 90 of the second embodiment is configured to include: a first inspection device 92a as two inspection devices, a second inspection device 92b, and a cleaning device. Device 94. In addition, this inspection system 90 is also configured such that an inspection object ( Figure 8 Middle is the rotating platform 96 that liquid crystal assembly (24) moves.

[0067] The rotary table 96 can place a plurality of liquid crystal modules M ( Figure 8 There are four in the middle), and the table 96a can be rotated along the horizontal plane. The two inspection devices 92a, 92b and the cleaning device 94 are arranged in order of the first inspection device 92a, the cleaning device 94, and the second inspection device 92b so as to surround the workbench ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a system and method of efficiently and accurately inspecting a display panel. The method comprises following steps: (S1-S3) taking a lighted display panel as an image, processing the image, and determining whether the display panel has a lighting defect or not; (S5) obtaining information related with the disqualified lighting; (S6) if determining that the display panel has a lighting defect, cleaning the position of the display panel having the lighting defect; (S9) determining the presence or absence of the lighting defect on the position of the display panel having the lighting defect after the cleaning; (S4) determining that the display panel has no defect if no lighting defect is found after the cleaning or if the pre-cleaning lighting defect information and post-cleaning lighting defect information do not match; and (S12) determining that the display panel has a defect if the pre-cleaning lighting defect information and the post-cleaning lighting defect information match.

Description

technical field [0001] The present invention relates to a display panel inspection system for inspecting a display panel included in the display device in a process of manufacturing the display device, and further relates to a display panel inspection method for inspecting the display panel. Background technique [0002] In the process of manufacturing various display devices such as liquid crystal display panels, plasma display panels, and organic EL display panels, inspections are carried out to see if the display panels included in the display devices are normal, specifically, to check whether the display panels are normally lit . For the lighting failure of the display panel, there are the following problems: damage to the display panel, line defects caused by disconnection of scanning lines or signal lines, short circuits, and impurities inward due to the forming process of the display panel. The defect of the display panel such as the case where the lighting fails due...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N21/84G01N21/88G01N21/95G01N21/01G01N21/15G01R31/00G02F1/13
CPCG01N21/01G01N21/15G01N21/84G01N21/8806G01N21/8851G01N21/95G01N2021/0112G01N2021/151G01N2021/152G01N2021/154G01N2021/8477G01N2021/8887G01N2021/9513G01R31/00G02F1/1309G02F1/1316G09G3/006
Inventor 忍秀树川濑伸行川村辉夫
Owner SHARP KK