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Display device inspection method and display device inspection apparatus

A technology of display device and inspection method, applied in measurement devices, optical testing flaws/defects, instruments, etc., can solve problems such as bad particles

Pending Publication Date: 2022-05-17
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A display device formed of multiple layers may have undesirable particles in each layer along the lamination direction

Method used

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  • Display device inspection method and display device inspection apparatus
  • Display device inspection method and display device inspection apparatus
  • Display device inspection method and display device inspection apparatus

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Experimental program
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Embodiment Construction

[0063] reference and attached Figure 1 Advantages and features of the present invention and methods of realizing them will become clear from the embodiments described later. However, the present invention is not limited to the embodiments invented below, and can be implemented in various forms different from each other, and this embodiment is only to complete the invention of the present invention and to completely convey the scope of the invention to the art to which the present invention pertains. It is provided by a person having ordinary knowledge in the field, and the present invention is limited only by the scope of the claims.

[0064] References to elements or layers being "On" other elements or layers include all instances where the other elements are directly on the other elements or with other layers or other elements interposed therebetween. Likewise, references to "Below", "Left" and "Right" include the case of being directly adjacent to other elements or with o...

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Abstract

The invention provides an inspection method of a display device and an inspection apparatus of the display device. An inspection method of a display device includes setting a focus on a display device including a plurality of layers, an image capturing unit acquiring a plurality of first image pictures from a first light reflected at the focus under a first illumination condition in which the first light is irradiated, acquiring a plurality of second video pictures from second light reflected at the focal point under a second illumination condition in which the second light is irradiated; acquiring, from the acquired video picture, information on defective candidates for discovering defective particles on the display device; and a step of applying a quality determination for the defective candidates, the image capturing unit including a mirror array in which a plurality of mirrors are tilted at a tilt angle and a system control unit that controls the tilt angle of the mirrors, and setting the position of the focus in accordance with the tilt angle of the mirrors.

Description

technical field [0001] The present invention relates to an inspection method of a display device and an inspection device for a display device. More specifically, it relates to an inspection method for inspecting a display device having a plurality of laminated layers for a display device having a defective appearance for each layer, and an inspection device for the display device. Background technique [0002] Display devices are increasing in importance with the development of multimedia. In response to this, various types of display devices such as Organic Light Emitting Display (OLED) and Liquid Crystal Display (LCD) are being used. [0003] The display device includes a display panel such as an organic light emitting display panel or a liquid crystal display panel as a device for displaying pictures. Among them, as a light-emitting display panel, light-emitting elements can be included, such as light-emitting diodes (Light Emitting Diode, LED), there are organic light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88G01N21/95
CPCG01N21/88G01N21/95G01N2021/9513G01N21/8851G01N21/8901G01N21/8806G01N2021/8965G01N2021/8887
Inventor 金宰完宋明镐金永燮申大根池熙成金锡辉
Owner SAMSUNG DISPLAY CO LTD