KR-20260062122-A - Display device, electronic device, image inspecting device for display device and image inspection method for display device

KR20260062122AKR 20260062122 AKR20260062122 AKR 20260062122AKR-20260062122-A

Abstract

One embodiment relates to a display device, an electronic device, an inspection device for a display device, and an image inspection method for a display device, wherein the problem of collision between a wafer and a lens during the inspection process of a display panel can be resolved and the inspection process can be simplified. The display panel has a display area in which a plurality of pixels are arranged; a tag portion disposed in a non-display area of the display panel and including a plurality of dummy pixels; and a lens disposed on the display panel, wherein the lens overlaps with the display area and does not overlap with the tag portion.

Inventors

손병규

Assignees

삼성디스플레이 주식회사

Dates

Publication Date: 20260507
Application Date: 20241025

Claims (20)

A display panel having a display area in which multiple pixels are arranged; A tag portion disposed in a non-display area of the above-mentioned display panel and comprising a plurality of dummy pixels; It includes a lens placed on the above-mentioned display panel, A display device in which the above lens overlaps with the above display area and does not overlap with the above tag portion.
In Article 1, Each of the above plurality of pixels includes a plurality of subpixels, and Each of the multiple subpixels includes a sub-optical layer, and A display device comprising a plurality of sub-pixels, wherein the sub-optical layer is shifted to a larger size as it is positioned further from the center of the display area.
In Article 2, The above sub-optical layer is, Color filter; and A display device comprising a sub-lens disposed on the color filter so as to overlap with the color filter.
In Article 2, The above lens is a display device that overlaps with a plurality of sub-optical layers of the plurality of sub-pixels.
In Paragraph 3, The above sub-lens is a display device including a micro-lens.
In Article 2, Each of the above plurality of dummy pixels includes a plurality of dummy subpixels, and Multiple dummy subpixels each include a dummy sub-optical layer, and A display device comprising a plurality of dummy subpixels, wherein the dummy sub-optical layer is shifted to a larger size as it is positioned further from the center of the tag portion.
In Article 6, The above dummy sub-optical layer is, Dummy color filter; and A display device comprising a dummy sub-lens placed on the dummy color filter so as to overlap with the dummy color filter.
In Article 6, A display device in which the above lens does not overlap with the plurality of dummy sub-optical layers of the plurality of dummy sub-pixels.
In Article 1, A display device in which dummy pixels of the above tag section are arranged in a matrix form in the above non-display area.
In Article 1, The above display panel further includes a pad portion, and The above tag portion is a display device positioned between the pad portion and the edge of the display panel.
It includes a display device that provides a screen, The above display device is, A display panel having a display area in which multiple pixels are arranged; A tag portion disposed in a non-display area of the above-mentioned display panel and comprising a plurality of dummy pixels; It includes a lens placed on the above-mentioned display panel, An electronic device in which the above lens overlaps with the above display area and does not overlap with the above tag portion.
Translucent mirror; A micro-mirror array lens module that receives light from a display panel through the above-mentioned translucent mirror; A shooting module that receives light reflected from the above-mentioned micro-mirror array lens module and generates an image based on the received light; and It includes a control unit that controls the mirror lens of the micro mirror array lens module based on a preset main light angle according to the type of display panel, and The above mirror lens includes a plurality of micro-mirrors arranged to surround the center of the mirror lens, and The above control unit is an image inspection device for a display device that controls the position and angle of the plurality of micro-mirrors based on a preset main light angle according to the type of display panel.
A step of preparing a wafer having a plurality of display panels and a plurality of tag portions arranged corresponding to the plurality of display panels; Step of placing an image inspection device on the tag unit; A step of controlling the mirror lens of the image inspection device based on a preset main light angle according to the type of display panel corresponding to the tag part; A step of photographing the tag portion using an image inspection device controlled by the mirror lens; and A method for inspecting images of a display device, comprising the step of determining whether the display panel is defective based on an image captured by the image inspection device.
In Article 13, The above-described display panel is a method for inspecting an image of a display device comprising a plurality of pixels arranged in a display area of the above-described display panel.
In Article 14, Each of the above plurality of pixels includes a plurality of subpixels, and Each of the multiple subpixels includes a sub-optical layer, and A method for inspecting images of a display device comprising a sub-optical layer in which the plurality of sub-pixels are shifted to a larger size as they are positioned further from the center of the display area.
In Article 13, The above tag portion is a method for inspecting an image of a display device including a plurality of dummy pixels.
In Article 16, Each of the above plurality of dummy pixels includes a plurality of dummy subpixels, and Multiple dummy subpixels each include a dummy sub-optical layer, and A method for inspecting a display device comprising a dummy sub-optical layer in which the plurality of dummy sub-pixels are shifted to a larger size as they are positioned further from the center of the tag portion.
In Article 16, A method for inspecting images of a display device in which dummy pixels of the above tag section are arranged in a matrix form in a dummy area of the wafer.
In Article 16, The above image inspection device is, Translucent mirror; A micro mirror array lens module including the mirror lens and receiving light from the dummy pixels through the semi-transparent mirror; and An image inspection method for a display device comprising a shooting module that receives light reflected from the above-mentioned micro-mirror array lens module and generates an image based on the received light.
In Article 19, The above mirror lens includes a plurality of micro-mirrors arranged to surround the center of the mirror lens, and An image inspection method for a display device in which the positions and angles of the plurality of micro-mirrors are controlled based on a preset main light angle according to the type of display panel corresponding to the tag portion.

Description

Display device, electronic device, image inspecting device for display device and image inspection method for display device One embodiment relates to a display device, and in particular to a display device, an electronic device, an inspection device for a display device, and an image inspection method for a display device, wherein the problem of collision between a wafer and a lens during the inspection process of a display panel can be resolved and the inspection process can be simplified. A Head Mounted Display (HMD) is an image display device worn on a user's head in the form of glasses or a helmet, with the focus formed at a close distance in front of the user's eyes. Head Mounted Displays can implement Virtual Reality (VR) or Augmented Reality (AR). Head-mounted displays can magnify and display images displayed by small display devices using multiple lenses. Therefore, display devices applied to head-mounted displays need to provide high-resolution images, for example, images with a resolution of 3000 PPI (Pixels Per Inch) or higher. To this end, OLEDoS (Organic Light Emitting Diode on Silicon), a high-resolution small organic light-emitting display device, is used as a display device applied to head-mounted displays. OLEDoS is a device that displays images by placing an Organic Light Emitting Diode (OLED) on a semiconductor wafer substrate on which a CMOS (Complementary Metal Oxide Semiconductor) is placed. FIG. 1 is an exploded perspective view showing a display device according to one embodiment. Figure 2 is a layout diagram showing an example of a display panel illustrated in Figure 1. FIG. 3 is an equivalent circuit diagram of a first subpixel according to one embodiment. FIG. 4 is a layout diagram showing an example of a display panel according to one embodiment. Figure 5 is a layout diagram showing an example of the display area of Figure 4. Figure 6 is a layout diagram showing another example of the display area of Figure 4. FIG. 7 is a cross-sectional view showing an example of a display panel cut along I1-I1' of FIG. 5. FIG. 8 is a cross-sectional view of a display device according to one embodiment. Figure 9 is a schematic diagram showing the detailed configuration of the tag section of Figure 4 in a planar view. FIG. 10 is a drawing showing an image inspection device according to one embodiment. FIG. 11 is a drawing for explaining an image inspection method of a display device according to one embodiment, and Figure 12 is a drawing showing the mirror lens of the micro mirror array lens module of Figure 11. Figure 13 is a diagram showing an image of a tag portion obtained through the image inspection device of Figure 10. Figure 14 is an enlarged view of each image in the first, second, and third regions of the image in Figure 13. FIG. 15 is a drawing for explaining the placement location of the tag portion according to another embodiment. FIG. 16 is a perspective view showing an electronic device to which a display device according to one embodiment is applied. The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. When elements or layers are referred to as being "on" another element or layer, this may include cases where another layer or element is interposed directly on or in the middle of another element. Throughout the specification, the same reference numerals may refer to the same components. Shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for describing embodiments are exemplary, and therefore the present invention is not limited to the depicted details. Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may also be the second component within the technical scope of the present invention. The features of each of the various embodiments of the present invention may be combined or combined with one another, either partially or wholly, and may technically enable various interlocking and operation. Each embodiment may be implemented independently of one another or may be implemented together in an associated relationship. Specific embodiments can be described below with reference to the attached drawings. FIG. 1 is an exploded perspective view showing a display device according to one e