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KR-20260065213-A - DISPLAY DEVICE AND MULTI SCREEN DISPLAY DEVICE INCLUDING THE SAME

KR20260065213AKR 20260065213 AKR20260065213 AKR 20260065213AKR-20260065213-A

Abstract

A multi-screen display device according to one embodiment of the present invention includes a plurality of display devices arranged along a first direction and a second direction different from the first direction, wherein each of the plurality of display devices includes a first substrate including a first surface and a second surface facing the first surface, a second substrate arranged on the second surface of the first substrate and including a third surface facing the second surface and a fourth surface facing the third surface, a first pad portion arranged on the first surface of the first substrate and including a plurality of first pads arranged over the entire edge of the first substrate, and a second pad portion arranged on the fourth surface of the second substrate and including a plurality of second pads arranged over the entire edge of the second substrate, wherein some of the plurality of first pads are electrically connected to some of the plurality of second pads, and the remainder of the plurality of first pads and the remainder of the plurality of second pads are open.

Inventors

  • 서대영

Assignees

  • 엘지디스플레이 주식회사

Dates

Publication Date
20260508
Application Date
20241101

Claims (16)

  1. It includes a plurality of display devices arranged along a first direction and a second direction different from the first direction, and Each of the above plurality of display devices is, A first substrate comprising a first surface and a second surface opposite to the first surface; A second substrate disposed on the second surface of the first substrate and comprising a third surface facing the second surface and a fourth surface facing the third surface; A first pad portion comprising a plurality of first pads disposed on the first surface of the first substrate and disposed over the entire edge of the first substrate; and It includes a second pad portion comprising a plurality of second pads disposed on the fourth surface of the second substrate and disposed over the entire edge of the second substrate. Some of the plurality of first pads are electrically connected to some of the plurality of second pads, and A multi-screen display device in which the remainder of the plurality of first pads and the remainder of the plurality of second pads are open.
  2. In Article 1, The plurality of display devices are multi-screen display devices arranged adjacent to each other along the first direction in each of the first row and the second row adjacent to the first row along the second direction.
  3. In Article 2, A multi-screen display device in which a first pad positioned corresponding to the boundary portion between the first row and the second row among the plurality of first pads is electrically connected to some of the plurality of second pads.
  4. In Paragraph 3, A multi-screen display device in which the first pad, which is positioned corresponding to the portion excluding the boundary portion between the first row and the second row among the plurality of first pads, is open.
  5. In Article 2, A multi-screen display device in which a second pad, positioned corresponding to the boundary portion between the first row and the second row among the plurality of second pads, is electrically connected to some of the plurality of first pads.
  6. In Article 5, A multi-screen display device in which the second pads arranged in correspondence with the portion excluding the boundary portion between the first row and the second row among the plurality of second pads are open.
  7. In Article 1, The above first pad portion is, A first sub-pad portion comprising a plurality of first sub-pads arranged along the first direction at the first edge of the first substrate; A second sub-pad portion comprising a plurality of second sub-pads arranged along the first direction at a second edge facing the first edge of the first substrate; A third sub-pad portion comprising a plurality of third sub-pads arranged along the second direction at a third edge disposed between the first edge and the second edge of the first substrate; and A multi-screen display device comprising a fourth sub-pad section including a plurality of fourth sub-pads arranged along the second direction at a fourth edge opposite to the third edge of the first substrate.
  8. In Article 7, Any one of the first to fourth sub-pad portions is connected to the second pad portion, and A multi-screen display device in which the remaining sub-pad portions among the first to fourth sub-pad portions are open.
  9. In Article 7, The above second pad portion is, A fifth sub-pad section comprising a plurality of fifth sub-pads arranged along the first direction and overlapping with the first edge; A sixth sub-pad section comprising a plurality of sixth sub-pads arranged along the first direction and overlapping with the second edge; A seventh sub-pad portion comprising a plurality of seventh sub-pads arranged along the second direction and overlapping with the third edge; and A multi-screen display device comprising an 8th sub-pad section including a plurality of 8th sub-pads arranged along the 2nd direction and overlapping with the 4th edge.
  10. In Article 9, Any one of the 5th to 8th sub-pad portions is connected to the 1st pad portion, and A multi-screen display device in which the remaining sub-pad portions among the 5th to 8th sub-pad portions are open.
  11. It includes a plurality of display devices arranged along a first direction and a second direction different from the first direction, and Each of the above plurality of display devices is, A first substrate comprising a first surface and a second surface opposite to the first surface; and It includes a first pad portion comprising a plurality of first pads disposed on the first surface of the first substrate and disposed over the entire edge of the first substrate. The display device positioned in the first row among the plurality of display devices above is, A second substrate disposed on the second surface of the first substrate and comprising a third surface facing the second surface and a fourth surface facing the third surface; A driving circuit portion disposed on the fourth surface of the second substrate; and It further includes a second pad portion comprising a plurality of second pads disposed on the fourth surface of the second substrate and disposed over the entire edge of the second substrate. A multi-screen display device in which at least some of the plurality of first pads included in a display device arranged in a second row adjacent to the first row and the second direction among the plurality of display devices are electrically connected to at least some of the plurality of second pads included in a display device arranged in the first row.
  12. In Article 11, The first pad portion included in each of the plurality of display devices is, A first sub-pad portion comprising a plurality of first sub-pads arranged along the first direction at the first edge of the first substrate; A second sub-pad portion comprising a plurality of second sub-pads arranged along the first direction at a second edge facing the first edge of the first substrate; A third sub-pad portion comprising a plurality of third sub-pads arranged along the second direction at a third edge disposed between the first edge and the second edge of the first substrate; and A multi-screen display device comprising a fourth sub-pad section including a plurality of fourth sub-pads arranged along the second direction at a fourth edge opposite to the third edge of the first substrate.
  13. In Article 12, The second pad portion included in the display device positioned in the first row above is, A fifth sub-pad section comprising a plurality of fifth sub-pads arranged along the first direction and overlapping with the first edge; A sixth sub-pad section comprising a plurality of sixth sub-pads arranged along the first direction and overlapping with the second edge; A seventh sub-pad portion comprising a plurality of seventh sub-pads arranged along the second direction and overlapping with the third edge; and A multi-screen display device comprising an 8th sub-pad section including a plurality of 8th sub-pads arranged along the 2nd direction and overlapping with the 4th edge.
  14. In Article 13, A multi-screen display device in which two of the 5th to 8th sub-pad portions included in the 2nd pad portion of the display device arranged in the 1st row are connected to the driving circuit portion, and the remaining two sub-pad portions are open.
  15. In Article 14, A multi-screen display device, wherein one of the two sub-pad portions connected to the driving circuit portion among the 5th to 8th sub-pad portions included in the 2nd pad portion of the display device arranged in the 1st row is electrically connected to one of the 1st to 4th sub-pad portions included in the 1st pad portion of the display device arranged in the 1st row.
  16. In Article 15, A multi-screen display device, wherein the remaining one of the two sub-pad sections among the 5th to 8th sub-pad sections included in the 2nd pad section of the display device arranged in the 1st row, which is connected to the driving circuit section, is electrically connected to one of the 1st to 4th sub-pad sections included in the 1st pad section of the display device arranged in the 2nd row.

Description

Display device and multi-screen display device including the same The present invention relates to a display device and a multi-screen display device. Recently, multi-display devices that realize a large screen by arranging multiple display devices in a grid pattern have been commercialized. However, to implement a multi-display device, the pad portion of each of the multiple display devices must be positioned at the location where the pad portion of the multi-display device is placed; in the case of conventional multi-display devices, there is a problem in that the manufacturing process becomes complex because the arrangement of multiple display devices is limited or the position of the pad portion is designed differently for each display device. FIG. 1 is a drawing showing a display device according to embodiments of the present invention. Figure 2 is a drawing showing an example of a display panel included in the display device of Figure 1. FIGS. 3A and FIGS. 3B are drawings showing various embodiments of a single pixel included in the display panel of FIGS. 2. Figure 4 is a drawing showing an example of a first substrate included in the display panel of Figure 2. FIG. 5 is a perspective view showing the front of a display device according to embodiments of the present invention. FIG. 6 is a perspective view showing the rear side of a display device according to embodiments of the present invention. FIG. 7 is a drawing showing a multi-screen display device according to embodiments of the present invention. FIG. 8a is a drawing showing an example of a display device arrangement included in a multi-screen display device according to embodiments of the present invention. FIG. 8b is a drawing showing another example of a display device arrangement included in a multi-screen display device according to embodiments of the present invention. FIG. 9 is a circuit diagram showing an example of a subpixel included in the multi-screen display device of FIG. 7. FIGS. 10a and FIGS. 10b are drawings for explaining an example of driving a subpixel of FIG. 9. FIG. 11 is a circuit diagram showing another example of a subpixel included in the multi-screen display device of FIG. 7. FIGS. 12a and FIGS. 12b are drawings for explaining an example of driving a subpixel of FIG. 11. FIG. 13 is a cross-sectional view showing an example cut along the line II' shown in FIG. 8a. FIG. 14 is a perspective view showing the rear side of a display device according to embodiments of the present invention. FIG. 15 is a drawing showing another example of a display device arrangement included in a multi-screen display device according to embodiments of the present invention. FIG. 16 is a cross-sectional view showing an example cut along the line II-II' shown in FIG. 15. 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. Shapes, areas, ratios, angles, numbers, etc. disclosed in the drawings for explaining embodiments of the present invention are exemplary, and therefore the present invention is not limited to the depicted details. Throughout the specification, the same reference numerals refer to the same components. Furthermore, in describing the present invention, if it is determined that a detailed description of related prior art may unnecessarily obscure the essence of the present invention, such detailed description is omitted. Where terms such as "includes," "has," or "is made up" are used in the present invention, other parts may be added unless "only" is used. When a component is expressed in the singular, it includes cases where it is included in the plural unless specifically stated otherwise. In interpreting the components, they are interpreted to include a margin of error even in the absence of a separate explicit statement. And, where described as 'connection' or 'connection', it may include being 'connected' or 'connected' through one or more other components located between two components, unless 'immediately' or 'directly' is used. Additionally, terms such as "first," "second," etc. are used to describe various components, but these components are not limited by these terms. These terms are used merely to distinguish one component from another. Accordingly, the first component mentioned below may be the second component within the technical scope of the present invention. Throughout the specification, the same reference numerals refer to the same components. The area and thickness of each component s