KR-20260065606-A - Display panel and electric apparatus including the same

KR20260065606AKR 20260065606 AKR20260065606 AKR 20260065606AKR-20260065606-A

Abstract

The present invention provides a display panel and an electronic device equipped with the same, which improves light transmittance in an area where an electronic component is disposed, thereby minimizing performance degradation of the electronic component, reducing power consumption, and improving response speed. The display panel comprises: a substrate having at least one base layer and at least one barrier layer; a first pixel circuit and a second pixel circuit disposed on the substrate and spaced apart from each other with the transparent area between them, each including thin-film transistors and a storage capacitor; a first display element each electrically connected to the first pixel circuit; and a second display element each electrically connected to the second pixel circuit; wherein the base layer comprises a transparent polyimide resin, and the thin-film transistors of the first pixel circuit and the thin-film transistors of the second pixel circuit each comprise a semiconductor layer and a gate electrode disposed on the semiconductor layer.

Inventors

한재범
박영길
박정화
안나리
정수임

Assignees

삼성디스플레이 주식회사

Dates

Publication Date: 20260508
Application Date: 20260427

Claims (20)

As a display panel having a transparent area, Substrate; A first pixel circuit and a second pixel circuit disposed on the substrate and spaced apart from each other with the transparent region in between, each comprising thin-film transistors and a storage capacitor; A conductive layer located between the substrate and the thin-film transistors; A first display element electrically connected to the first pixel circuit above; It includes a second display element electrically connected to the second pixel circuit; and A display panel in which the thin-film transistors of the first pixel circuit and the thin-film transistors of the second pixel circuit each comprise semiconductor layers, and at least one of the semiconductor layers comprises an oxide semiconductor material.
In paragraph 1, A display panel in which the conductive layer is electrically connected to the at least one semiconductor layer.
In paragraph 2, A first insulating layer disposed between the above at least one semiconductor layer and the above conductive layer; A second insulating layer disposed on the above at least one semiconductor layer; A connecting metal that contacts the conductive layer through a first contact hole formed in the first and second insulating layers; The apparatus further includes a first electrode that contacts the at least one semiconductor layer through a second contact hole formed in the second insulating layer, and A display panel in which the first electrode and the connecting metal are made of the same material and are electrically connected to each other.
In paragraph 1, The above substrate includes at least one base layer and at least one barrier layer, and A display panel comprising at least one base layer including a transparent polyimide resin.
In paragraph 4, The above polyimide resin is, The Yellowness Index (YI) is 10 or less, and/or A display panel having a light transmittance in the range of 70% or more and 90% or less for a wavelength band of 400 nm or less.
In paragraph 4, The above polyimide resin is a polymer compound comprising repeating units represented by the following chemical formula 1, display panel: <Chemical Formula 1> Among the above chemical formula 1, X is selected from C(CR 1 R 2 R 3 ) 2 , O, SO 2 , and C=O, and R1 to R3 are independently selected from -F, -Cl, -Br, and -I, and Y1 is selected from a single bond, O, and SO2 , and E1 and E2 are independently hydrogen or CF3 , and d1 and d2 are independent integers from 1 to 4.
In paragraph 6, Among the above chemical formula 1, A display panel where X is C( CF3 ) 2 , Y is a single bond, and E1 and E2 are -CF3 .
In paragraph 4, The above polyimide resin is a polymer compound comprising repeating units represented by the following chemical formula 2, display panel: <Chemical Formula 2> Among the above chemical formula 2, X is selected from C(CR 1 R 2 R 3 ) 2 , O, SO 2 , and C=O, and R1 to R3 are independently selected from -F, -Cl, -Br, and -I, and Y1 is selected from a single bond, O, and SO2 , and Y₂ is selected from a single bond, O, and SO₂ , and E1 to E3 are independently hydrogen or -CF3 , and d1 to d3 are independent integers from 1 to 4.
In paragraph 1, The above substrate includes a first base layer, a first barrier layer, a second base layer, and a second barrier layer, and The first barrier layer is located between the first base layer and the second base layer, and The first and second base layers above comprise a transparent polyimide resin, and A display panel comprising an inorganic insulating material in the first barrier layer.
In paragraph 1, A flattening layer covering the first pixel circuit and the second pixel circuit; A first pixel electrode and a second pixel electrode disposed on the planarization layer and electrically connected to the first pixel circuit and the second pixel circuit, respectively, through contact holes formed in the planarization layer; A first intermediate layer and a second intermediate layer, respectively disposed on the first pixel electrode and the first pixel electrode; and A display panel further comprising a first counter electrode and a second counter electrode disposed respectively on the first intermediate layer and the second intermediate layer.
In Paragraph 10, A display panel further comprising a thin film encapsulation layer covering the first and second counter electrodes and having at least one inorganic layer and at least one organic layer.
In Paragraph 11, It further includes at least one insulating layer that overlaps with the above substrate and includes a first hole, and The first hole is located between the first pixel circuit and the second pixel circuit and partially exposes the substrate, and The flattening layer includes a second hole corresponding to the first hole, and A display panel in which at least one organic layer is located at least partially in each of the first hole and the second hole.
In Paragraph 12, It further includes a pixel defining film located on the planarization layer and covering the edges of the first and second pixel electrodes, and The pixel defining film is located between the first pixel circuit and the second pixel circuit, and further includes a third hole corresponding to the first hole and the second hole, and A display panel in which at least one organic layer is partially located in each of the first to third holes.
In Paragraph 13, The first intermediate layer and the second intermediate layer do not overlap with the first to third holes, A display panel in which the first counter electrode and the second counter electrode do not overlap with the first to third holes.
In Paragraph 13, A display panel in which the first counter electrode and the second counter electrode are integrally connected outside the first to third holes.
A display panel including a transparent area and a substrate; and An electronic device comprising: an electronic component disposed on one surface of the display panel to correspond to the above-mentioned transparent area; The above display panel is, A first pixel circuit and a second pixel circuit disposed on the substrate and spaced apart from each other with the transparent region in between, each comprising thin-film transistors and a storage capacitor; A conductive layer located between the substrate and the thin-film transistors; A flattening layer disposed on the first pixel circuit and the second pixel circuit; A first pixel electrode and a second pixel electrode disposed on the planarization layer and electrically connected to the first pixel circuit and the second pixel circuit, respectively, through two contact holes formed in the planarization layer; A counter electrode overlapping with the first pixel electrode and the second pixel electrode; It includes an intermediate layer located between the first pixel electrode and the counter electrode; An electronic device wherein the thin-film transistors of the first pixel circuit and the thin-film transistors of the second pixel circuit each comprise semiconductor layers, and at least one of the semiconductor layers comprises an oxide semiconductor material.
In Paragraph 16, The above conductive layer is electrically connected to the above at least one semiconductor layer, in an electronic device.
In Paragraph 16, An electronic device in which the conductive layer overlaps with the semiconductor layer in a planar view.
In Paragraph 16, A thin film encapsulation layer covering the above-mentioned counter electrode and having at least one inorganic layer and at least one organic layer; further comprising An electronic device wherein the planarization layer comprises a hole between the first pixel circuit and the second pixel circuit, and the at least one organic layer is located at least partially in the hole.
In Paragraph 19, The above-mentioned opposing electrode does not overlap with the above-mentioned hole, in an electronic device.

Description

Display panel and electronic apparatus including the same The present invention relates to a display panel and an electronic device equipped with the same, and more specifically, to a display panel with an expanded display area that enables image display even in an area where electronic components are placed, and an electronic device equipped with the same. Recently, display panels have become more diverse in their applications. In addition, there is a trend of display panels becoming thinner and lighter, expanding their range of use. As the area occupied by the display surface within the display panel is expanded, various functions integrated or linked to the panel are being added. As a means to add diverse functions while expanding the surface area, research is continuing on display panels that feature an area within the display surface for adding various functions, rather than just image displays. FIG. 1 is a schematic perspective view of an electronic device according to one embodiment of the present invention. FIG. 2 is a cross-sectional view schematically showing a part of an electronic device according to one embodiment of the present invention. FIG. 3 is an equivalent circuit diagram illustrating a pixel circuit included in a display panel according to one embodiment of the present invention. FIG. 4a is a plan view schematically showing the arrangement of pixels in a first display area of a display panel according to one embodiment of the present invention. FIG. 4b is a plan view schematically showing the arrangement of pixels in a second display area of a display panel according to one embodiment of the present invention. FIG. 5 is a cross-sectional view schematically showing a part of an electronic device according to one embodiment of the present invention. FIG. 6 is a cross-sectional view schematically showing a part of a display panel of an electronic device according to one embodiment of the present invention. The present invention is capable of various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects 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 drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various forms. Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same reference numerals, and redundant descriptions thereof will be omitted. In the following examples, terms such as first, second, etc. are used not in a limiting sense, but for the purpose of distinguishing one component from another component. In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise. In the following embodiments, terms such as "include" or "have" mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added. In the following embodiments, when a part such as a film, region, or component is described as being on or above another part, it includes not only cases where it is directly on top of another part, but also cases where another film, region, or component is interposed in between. In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are depicted arbitrarily for convenience of explanation, so the present invention is not necessarily limited to what is illustrated. Where an embodiment can be implemented differently, a specific process sequence may be performed differently from the order described. For example, two processes described consecutively may be performed substantially simultaneously or proceed in the reverse order of the description. In this specification, “A and/or B” indicates the case where it is A, B, or Act and B. And, “at least one of A and B” indicates the case where it is A, B, or Act and B. In the following embodiments, when a membrane, region, component, etc. is described as being connected, it includes cases where the membrane, region, or component is directly connected, or/or cases where other membranes, regions, or components are interposed between the membranes, regions, or components to be indirectly connected. For example, when a membrane, region, component, etc. is described as being electrically connected in this specification, it indicates cases where the membrane, region, or component, etc. are directly electrically connected, and/or cases where other membranes, regions, or components are interposed between them to be indi