Indication device
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- LG DISPLAY CO LTD
- Filing Date
- 2024-07-31
- Publication Date
- 2026-06-09
Smart Images

Figure 0007872319000001 
Figure 0007872319000002 
Figure 0007872319000003
Abstract
Claims
1. A substrate including a display area on which multiple subpixels are arranged, and a non-display area including a pad area located in a first direction from the display area; An insulating film stack located on the substrate and having an outer surface in the non-display region; A stopper located on the insulating film stack; A cathode located on the insulating film stack, extending from the display area to a portion of the non-display area and overlapping at least a portion of the upper surface of the stopper; A first inorganic film located on the cathode and extending from the display area to the non-display area; An organic film located on a portion of the first inorganic film and having an outwardly inclined surface; and A second inorganic film located on the organic film, extending from the display area to the non-display area, and extending along the outer inclined surface. A display device including the following, wherein the stopper is positioned in a part of the non-display area adjacent to the outermost edge of the display area, in a first direction surrounding the outermost edge of the display area and in a second direction intersecting the first direction, and is located outside the organic film, The aforementioned display device is A bank located on the insulating film stack and having first to third openings; The first to third anodes located on the insulating film stack and overlapping the first to third openings, respectively; A first common intermediate layer, which is commonly arranged on the first to third anodes; First to third light-emitting layers located on the first common intermediate layer and overlapping the first to third anodes; and A second common intermediate layer, which is commonly disposed on the first to third light-emitting layers. It further includes, The common intermediate layer, including the first common intermediate layer and the second common intermediate layer, contains organic matter. The cathode is located on the second common intermediate layer, The common intermediate layer and the cathode extend to the top of the stopper, The end of the common intermediate layer and the end of the cathode are located on the stopper. A display device wherein the end of the cathode protrudes outward from the upper outer surface of the stopper and the end of the common intermediate layer.
2. The display device according to claim 1, further comprising a bank located on the insulating film stack for partitioning a plurality of light-emitting regions, wherein the stopper is positioned outside the bank.
3. The first inorganic film extends along the upper and outer sides of the stopper to the outer surface of the insulating film stack, The display device according to claim 1, wherein the second inorganic film extends outward from the outer inclined surface of the organic film and is located on the first inorganic film that extends along the upper and outer parts of the stopper to the outer surface of the insulating film stack.
4. The display device according to claim 1, wherein the outer surface of the stopper has a steeper inclination than the inner surface of the stopper.
5. The present invention further includes a capping layer located between the cathode and the first inorganic film, extending from the display region to the non-display region. The display device according to claim 1, wherein the capping layer extends along the upper and outer sides of the stopper to the outer surface of the insulating film stack.
6. The stopper includes a cliff portion from the upper part to a point where the slope of the outer surface becomes gentler or less than a predetermined level, or a point with a step. The display device according to claim 1, wherein the combined height of the cliff portion of the stopper and the height of the common intermediate layer is greater than the sum of the thicknesses of the first inorganic film and the second inorganic film.
7. The stopper is, A first stopper on the insulating film stack; and The second stopper on the first stopper Includes, The first stopper contains the same substance as the bank, The display device according to claim 1, wherein the second stopper comprises the same material as the spacer located on the bank.
8. The display device according to claim 7, wherein the lower end of the outer surface of the first stopper protrudes outward from the upper end of the outer surface of the second stopper.
9. The display device according to claim 1, wherein the stopper is positioned on the side of the outermost light-emitting element among the plurality of light-emitting elements corresponding to the plurality of subpixels, and has a thickness greater than the anode of the outermost light-emitting element.
10. The display device according to claim 1, wherein the width of the bottom surface of the stopper is greater than the width of the top surface of the stopper.
11. Display signal wiring arranged in the aforementioned display area; Display connection wiring that electrically connects the display signal wiring and the display pads arranged in the pad area; and Bending organic film located between the display area and the pad area It further includes, The display device according to claim 1, wherein a portion of the display connection wiring overlaps with the bending organic film.
12. A substrate including a display area on which a plurality of subpixels are arranged, and a non-display area including a pad area located in a first direction from the display area; An insulating film stack located on the substrate and having an outer surface in the non-display region; A stopper located on the insulating film stack; A cathode located on the insulating film stack, extending from the display area to a portion of the non-display area and overlapping at least a portion of the upper surface of the stopper; A first inorganic film located on the cathode and extending from the display area to the non-display area; An organic film located on a portion of the first inorganic film and having an outwardly inclined surface; and A second inorganic film located on the organic film, extending from the display area to the non-display area, and extending along the outer inclined surface. A display device including the following, wherein the stopper is positioned in a part of the non-display area adjacent to the outermost edge of the display area, in a first direction surrounding the outermost edge of the display area and in a second direction intersecting the first direction, and is located outside the organic film, The aforementioned hidden area is, A first non-display area located in the first direction from the display area, A second non-display area located in the second direction from the aforementioned display area, A third non-display area located in the opposite direction from the first direction from the display area, and A fourth non-display area located in the opposite direction from the display area in the second direction. Includes, The pad area is included in the first non-display area, The stopper is positioned in the non-display area and is arranged in the shape of a ring surrounding the periphery of the organic film, and the stopper is positioned between the display area and the pad area. The aforementioned display device is A first sensor electrode is disposed on the second inorganic film and extends in the second direction, and First touch routing wiring for electrically connecting the first sensor electrode to the first touch pad located in the pad area. It further includes, The first touch routing wiring does not bypass the second non-display area and the fourth non-display area, but crosses the display area in the first direction and extends to the first non-display area. A portion of the first touch routing wiring extending to the first non-display area overlaps with the stopper in the first non-display area of the display device.
13. The system further includes a gate-in-panel circuit configured to supply gate signals to the plurality of subpixels, The display device according to claim 1, wherein the gate-in-panel circuit is arranged on the substrate and overlaps with the organic film.
14. Base circuit layer on the aforementioned substrate; A light-emitting layer located on the base circuit layer and including a plurality of light-emitting elements contained in the plurality of subpixels; and Shielding layer located between the base circuit layer and the light-emitting element layer It further includes, The display device according to claim 13, wherein the base circuit layer includes the gate-in panel circuit disposed in the display area.
15. The display device according to claim 14, wherein a voltage having a predetermined voltage level is applied to the shielding layer.
16. Displaced on the substrate, further includes a common drive voltage line for supplying a common pixel drive voltage to the cathode, The display device according to claim 14, wherein the common drive voltage line is arranged in the display area, and the cathode is electrically connected to the common drive voltage line in the display area.
17. A subpixel circuit layer located between the shielding layer and the light-emitting layer, comprising a plurality of subpixel circuits for driving a plurality of light-emitting elements; and Gate link wiring connecting the gate-in-panel circuit and the plurality of subpixel circuits, which are arranged within the base circuit layer. It further includes, The display device according to claim 14, wherein the gate link wiring overlaps with the organic film.
18. The aforementioned display area includes a first display area and a second display area. The base circuit layer further includes not only the gate-in-panel circuit but also a subpixel circuit array that includes a plurality of subpixel circuits for driving the plurality of light-emitting elements, The gate-in-panel circuit is arranged in the first display area. The subpixel circuit array is arranged in the second display area. The plurality of light-emitting elements are A first light-emitting element positioned in the first display area and overlapping with at least a portion of the gate-in panel circuit; and A second light-emitting element is positioned in the second display area and overlaps with at least a portion of the subpixel circuit array. Includes, The aforementioned multiple subpixel circuits are, A first subpixel circuit configured to drive the first light-emitting element and positioned in the second display area; and Two or more second subpixel circuits configured to drive the second light-emitting element and arranged in the second display area. The display device according to claim 14, including the following:
19. An extension link connects the first subpixel circuit located in the second display area to the first light-emitting element located in the first display area. It further includes, The display device according to claim 18, wherein at least a portion of the extension link overlaps with at least a portion of the gate-in-panel circuit, and the extension link overlaps with the organic film.
20. A base voltage line located in at least one of the first display area and the second display area; and The display device according to claim 18, further comprising a cathode connection pattern located in at least one of the first display area and the second display area, connecting the cathode and the base voltage line.
21. A substrate including a display area on which a plurality of subpixels are arranged, and a non-display area including a pad area located in a first direction from the display area; An insulating film stack located on the substrate and having an outer surface in the non-display region; A stopper located on the insulating film stack; A cathode located on the insulating film stack, extending from the display area to a portion of the non-display area and overlapping at least a portion of the upper surface of the stopper; A first inorganic film located on the cathode and extending from the display area to the non-display area; An organic film located on a portion of the first inorganic film and having an outwardly inclined surface; and A second inorganic film located on the organic film, extending from the display area to the non-display area, and extending along the outer inclined surface. A display device including the following, wherein the stopper is positioned in a part of the non-display area adjacent to the outermost edge of the display area, in a first direction surrounding the outermost edge of the display area and in a second direction intersecting the first direction, and is located outside the organic film, A display device further comprising a patterned organic material positioned outside the stopper.
22. Further comprising a plurality of light-emitting elements on the insulating film stack, The stopper is positioned on the outside of the organic film. The display device according to claim 21, wherein the stopper has a thickness greater than the anode of the outermost light-emitting element.
23. A bank for separating the plurality of light-emitting elements; and Spacer on the aforementioned bank It further includes, The stopper includes a first stopper on the insulating film stack and a second stopper on the first stopper. The first stopper contains the same substance as the bank, The display device according to claim 22, wherein the second stopper contains the same material as the spacer.
24. The display device according to claim 22, wherein the outer surface of the stopper has a steeper inclination than the inner surface of the stopper.