KR-20260064892-A - DISPLAY DEVICE AND ELECTRONIC DEVICE INCLUDING THE SAME

KR20260064892AKR 20260064892 AKR20260064892 AKR 20260064892AKR-20260064892-A

Abstract

The display device includes a pixel circuit layer, a first light-emitting element, a second light-emitting element, a third light-emitting element, a first write gate line, and a second write gate line. The pixel circuit layer includes a first pixel circuit portion, a second pixel circuit portion, and a third pixel circuit portion. The first light-emitting element and the second light-emitting element emit light of a first color, and the third light-emitting element emits light of a second color. The third light-emitting element includes a third pixel electrode that overlaps on a plane with each of the first pixel circuit portion, the second pixel circuit portion, and the third pixel circuit portion, and a third light-emitting layer disposed on the third pixel electrode. The first write gate line provides a first write gate signal to each of the first pixel circuit portion and the third pixel circuit portion. The second write gate line provides a second write gate signal to the second pixel circuit portion that is applied at a timing different from the application timing of the first write gate signal.

Inventors

박준현
손선권
이철곤
차나현

Assignees

삼성디스플레이 주식회사

Dates

Publication Date: 20260508
Application Date: 20241030

Claims (20)

A pixel circuit layer comprising a first pixel circuit portion, a second pixel circuit portion, and a third pixel circuit portion arranged in the same row; A first light-emitting element comprising a first pixel electrode disposed on the pixel circuit layer and electrically connected to the first pixel circuit portion, and a first light-emitting layer disposed on the first pixel electrode; A second light-emitting element comprising a second pixel electrode disposed on the pixel circuit layer and electrically connected to the second pixel circuit portion, and a second light-emitting layer disposed on the second pixel electrode, which emits light of the first color; A third light-emitting element comprising a third pixel electrode that emits light of a second color different from the first color light, is disposed on the pixel circuit layer and is electrically connected to the third pixel circuit portion, and overlaps in a plane with each of the first pixel circuit portion, the second pixel circuit portion, and the third pixel circuit portion, and a third light-emitting layer disposed on the third pixel electrode; A first write gate line extending along the first direction within the pixel circuit layer and providing a first write gate signal to the first pixel circuit and the third pixel circuit; and A display device comprising a second write gate line that extends along the first direction within the pixel circuit layer and provides a second write gate signal applied to the second pixel circuit at a timing different from the application timing of the first write gate signal.
In claim 1, the third pixel electrode is, A first main part superimposed on a plane with the above-mentioned third pixel circuit part; and A display device characterized by including a first extension portion that extends from the first main portion and overlaps on a plane with each of the first pixel circuit portion, the second pixel circuit portion, and the third pixel circuit portion.
In claim 2, the pixel circuit layer is, A fourth pixel circuit section electrically connected to the second input gate line above; A fifth pixel circuit section electrically connected to the first input gate line; and A display device characterized by further including a sixth pixel circuit section electrically connected to the second input gate line.
In Paragraph 3, A display device characterized by being repeatedly arranged along the first direction in the order of the second pixel circuit section, the first pixel circuit section, the third pixel circuit section, the fourth pixel circuit section, the fifth pixel circuit section, and the sixth pixel circuit section.
In Paragraph 3, A fourth light-emitting element comprising a fourth pixel electrode disposed on the pixel circuit layer and electrically connected to the fourth pixel circuit portion, and a fourth light-emitting layer disposed on the fourth pixel electrode, emitting the second color light; A fifth light-emitting element comprising a fifth pixel electrode disposed on the pixel circuit layer and electrically connected to the fifth pixel circuit portion, and a fifth light-emitting layer disposed on the fifth pixel electrode, emitting a third color light different from the first color light and the second color light; and A display device characterized by further including a sixth light-emitting element comprising a sixth pixel electrode disposed on the pixel circuit layer and electrically connected to the sixth pixel circuit portion, and a sixth light-emitting layer disposed on the sixth pixel electrode, which emits the third color light.
In claim 5, the fourth pixel electrode is, A second main part that overlaps the above-mentioned sixth pixel circuit part on a plane; and A display device characterized by including a second extension portion that extends from the second main portion and overlaps on a plane with each of the fourth pixel circuit portion and the fifth pixel circuit portion.
In claim 6, the second extension of the fourth pixel electrode is, A display device characterized by being spaced apart from the fifth pixel electrode in a plane and extending along the boundary of at least a portion of the fifth pixel electrode.
In claim 5, the sixth pixel electrode is, A third main part that overlaps in a plane with each of the first pixel circuit part and the second pixel circuit part adjacent to the sixth pixel circuit part; and A display device characterized by including a third extension part that extends from the third main part and overlaps on a plane with each of the second pixel circuit part and the sixth pixel circuit part.
In claim 8, the first extension of the third pixel electrode is, A display device characterized by being spaced apart from the third main part of the sixth pixel electrode in a plane and extending along the boundary of at least a portion of the third main part.
In Article 5, A plurality of first auxiliary electrodes disposed in the pixel circuit layer, adjacent to the sixth pixel electrode, and arranged along a second direction intersecting the first direction; and It further includes a pixel defining film disposed on the first auxiliary electrodes, and A display device characterized in that the pixel defining film has a hole defined therein that exposes the upper surface of at least one of the first auxiliary electrodes.
In Article 10, It further includes a plurality of second auxiliary electrodes disposed in the pixel circuit layer, adjacent to the fifth pixel electrode, and arranged along the second direction. A display device characterized in that the pixel defining film completely covers the upper surface of each of the second auxiliary electrodes.
In Paragraph 3, A first data line extending along a second direction intersecting the first direction within the pixel circuit layer and electrically connected to each of the first pixel circuit portion and the second pixel circuit portion; A second data line extending along the second direction within the pixel circuit layer and electrically connected to each of the third pixel circuit portion and the fourth pixel circuit portion; and A display device characterized by further including a third data line extending along the second direction within the pixel circuit layer and electrically connected to each of the fifth pixel circuit and the sixth pixel circuit.
In Article 12, On a plane, the first data line is disposed between the first pixel circuit portion and the second pixel circuit portion adjacent to each other, and On a plane, the second data line is positioned between the third pixel circuit and the fourth pixel circuit that are adjacent to each other, and A display device characterized in that, on a plane, the third data line is positioned between the fifth pixel circuit and the sixth pixel circuit that are adjacent to each other.
A pixel circuit layer comprising a first pixel circuit portion, a second pixel circuit portion spaced apart from the first pixel circuit portion in a first direction on a plane, and a third pixel circuit portion, a fourth pixel circuit portion, a fifth pixel circuit portion, and a sixth pixel circuit portion disposed between the first pixel circuit portion and the second pixel circuit portion on a plane and arranged sequentially along the first direction; A first light-emitting element comprising a first pixel electrode disposed on the pixel circuit layer and electrically connected to the first pixel circuit portion, and a first light-emitting layer disposed on the first pixel electrode; A second light-emitting element comprising a second pixel electrode that emits light of the first color, is disposed on the pixel circuit layer and is electrically connected to the second pixel circuit portion, and overlaps in a plane with each of the second pixel circuit portion, the fifth pixel circuit portion, and the sixth pixel circuit portion, and a second light-emitting layer disposed on the second pixel electrode; and A display device comprising a third light-emitting element that emits light of a second color different from the first color light, is disposed on the pixel circuit layer and electrically connected to the third pixel circuit, and includes a third light-emitting layer disposed on the third pixel electrode.
In claim 14, the second pixel electrode is, A main part that overlaps the above-mentioned second pixel circuit part on a plane; and A display device characterized by including an extension portion that extends from the first main portion in the first direction and overlaps on a plane with each of the second pixel circuit portion, the fifth pixel circuit portion, and the sixth pixel circuit portion.
In Article 14, A first write gate line extending along the first direction within the pixel circuit layer and providing a first write gate signal to each of the first pixel circuit part, the third pixel circuit part and the fifth pixel circuit part; and A display device characterized by further including a second write gate line that extends along the first direction within the pixel circuit layer and provides a second write gate signal applied at a timing different from the application timing of the first write gate signal to the second pixel circuit, the fourth pixel circuit, and the sixth pixel circuit.
In Article 14, A first data line extending along a second direction intersecting the first direction within the pixel circuit layer and electrically connected to each of the first pixel circuit portion and the second pixel circuit portion; A second data line extending along the second direction within the pixel circuit layer and electrically connected to each of the third pixel circuit portion and the fourth pixel circuit portion; and A display device characterized by further including a third data line extending along the second direction within the pixel circuit layer and electrically connected to each of the fifth pixel circuit and the sixth pixel circuit.
In Article 14, A fourth light-emitting element comprising a fourth pixel electrode disposed on the pixel circuit layer and electrically connected to the fourth pixel circuit portion, and a fourth light-emitting layer disposed on the fourth pixel electrode, emitting the second color light; A fifth light-emitting element comprising a fifth pixel electrode disposed on the pixel circuit layer and electrically connected to the fifth pixel circuit portion, and a fifth light-emitting layer disposed on the fifth pixel electrode, each emitting a third color light different from the first color light and the second color light, respectively; and A display device characterized by further including a sixth light-emitting element comprising a sixth pixel electrode disposed on the pixel circuit layer and electrically connected to the sixth pixel circuit portion, and a sixth light-emitting layer disposed on the sixth pixel electrode, which emits the third color light.
In Article 18, A plurality of auxiliary electrodes disposed in the pixel circuit layer, adjacent to the fifth pixel electrode, and arranged along a second direction intersecting the first direction; and It further includes a pixel defining film disposed on the above auxiliary electrodes, and The pixel defining film has a hole defined therein that exposes the upper surface of at least one of the auxiliary electrodes, and A display device characterized in that the imaginary line connecting the centers of the fifth pixel electrode and the sixth pixel electrode is parallel to the first direction.
In Article 18, A plurality of first auxiliary electrodes disposed in the pixel circuit layer, adjacent to the fifth pixel electrode, and arranged along a second direction intersecting the first direction; A plurality of second auxiliary electrodes disposed in the pixel circuit layer, adjacent to the sixth pixel electrode, and arranged along a second direction; and It further includes a pixel defining film disposed on the first auxiliary electrodes and the second auxiliary electrodes, and A hole is defined in the pixel defining film that exposes the upper surface of at least one of the first auxiliary electrodes, and The pixel defining film above covers the upper surface of each of the second auxiliary electrodes in its entirety, and A display device characterized in that the imaginary line connecting the centers of the fifth pixel electrode and the sixth pixel electrode, respectively, has a zigzag shape along the first direction.

Description

Display device and electronic device including the same The present invention relates to a display device and an electronic device including the same. More specifically, it relates to a display device that provides visual information and an electronic device including the same. Electronic devices that provide video to users, such as smartphones, digital cameras, laptop computers, navigation systems, monitors, and smart televisions, include a display device for displaying the video. The display device generates video and provides the generated video to the user through a display screen. A display device includes a plurality of pixels for generating an image and a driving unit for driving the pixels. Each pixel includes a light-emitting element and a pixel circuit connected to the light-emitting element. The pixel circuit can be driven by the driving unit to cause the light-emitting element to emit light. The arrangement design of the pixel circuit and the light-emitting element is being developed in a direction that maximizes luminous efficiency while increasing resolution within a limited space. FIG. 1 is a block diagram showing a display device according to one embodiment of the present invention. Figure 2 is a drawing showing a part of the display device of Figure 1. Figure 3 is a circuit diagram showing pixels included in the display panel of Figure 1. Figure 4 is a circuit diagram showing an example of the operation of the pixels of Figure 3. Figure 5 is a circuit diagram showing another example of the operation of the pixels of Figure 3. FIGS. 6 to 8 are layout diagrams for explaining an example of the arrangement of components of pixels included in the display panel of FIG. 1. FIG. 9 is a cross-sectional view showing the cross-sections of each of the regions A1, A2, and A3 of FIG. 8. FIG. 10 is a layout diagram illustrating another example of the arrangement of components of pixels included in the display panel of FIG. 1. FIGS. 11 and FIGS. 12 are layout diagrams to illustrate another example of the arrangement of components of pixels included in a display panel. FIG. 13 is a plan view illustrating an example of the arrangement of the pixel electrode and auxiliary electrode of FIG. 12. FIG. 14 is a plan view illustrating another example of the arrangement of the pixel electrode and auxiliary electrode of FIG. 12. FIG. 15 is a block diagram showing an electronic device according to one embodiment of the present invention. FIG. 16 is a diagram showing an example in which the electronic device of FIG. 15 is implemented as a smartphone. With respect to the embodiments of the present invention disclosed in the text, specific structural or functional descriptions are provided merely for the purpose of explaining the embodiments of the present invention, and the embodiments of the present invention may be implemented in various forms and should not be interpreted as being limited to the embodiments described in the text. The present invention is capable of various modifications and may take various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the invention to the specific disclosed forms, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms may be used for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. Conversely, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between. Other expressions describing the relationship between components, such as "between" and "exactly between," or "adjacent to" and "directly adjacent to," should be interpreted in the same way. The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to specify the existence of the described features, numbers, steps, actions, components, parts, or combinations thereof, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, compo