Display panel and display device comprising the same

Abstract

A display panel and a display device including the same are provided. The display device includes a display panel including a substrate, a pixel electrode, a first insulating layer, and an optical functional layer, a main display area, a component area, and an intermediate area are defined in the substrate, the pixel electrode includes a first pixel electrode arranged in the main display area, a second pixel electrode arranged in the component area, and a third pixel electrode arranged in the intermediate area, the first insulating layer includes a light-blocking material and is disposed on the substrate, the first insulating layer exposes a central portion of the pixel electrode, the optical functional layer is arranged on the first insulating layer and includes a black matrix, the black matrix exposes the pixel electrode, and wherein the first insulating layer is at least partially non-overlapping with the black matrix in the intermediate area between the main display area and the component area.

Description

[0001] Cross-reference to related applications

[0002] This application is based on and claims priority to Korean Patent Application No. 10-2020-0114114, filed with the Korean Intellectual Property Office on September 7, 2020, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] One or more embodiments relate to a display panel and a display device including the display panel, and more specifically, to a display panel and a display device including the display panel that reduce the visibility of boundaries in a component area. Background Technology

[0004] In recent years, the applications of display devices have diversified. Furthermore, as display devices become thinner and lighter, their range of uses has gradually expanded.

[0005] As the area occupied by the display area in a display device has increased, various functions have been added in combination with or associated with the display device. In order to add various functions while expanding the display area, display devices that include areas for adding various functions other than displaying images within the display area have been studied. Summary of the Invention

[0006] To add various functions, components such as cameras or sensors can be arranged. To arrange components while ensuring a wider display area, the components can be arranged to overlap with the display area. As one way to arrange components, the display device may include a transmissive area through which wavelengths of light or sound can pass.

[0007] However, in display devices based on related technologies, the boundaries are well visible during the design process of expanding the display area.

[0008] One or more embodiments include a display panel that reduces the visibility of boundaries in a component area, and a display device that includes the display panel. However, this technical problem is an example, and this disclosure is not limited thereto.

[0009] Additional aspects will be set forth in part in the description which follows, and will be apparent in part from the description, or may be learned by practice of embodiments of this disclosure as presented.

[0010] According to one or more embodiments, a display panel includes a substrate, pixel electrodes, a first insulating layer, and an optical functional layer. The substrate includes a main display area, a component area on which at least one component is disposed, and an intermediate area disposed between the main display area and the component area. The pixel electrodes include a first pixel electrode disposed in the main display area, a second pixel electrode disposed in the component area, and a third pixel electrode disposed in the intermediate area. The first insulating layer includes a light-blocking material and is disposed on the substrate. The first insulating layer exposes the central portion of a portion of the pixel electrodes. The optical functional layer is disposed on the first insulating layer and includes a black matrix. The black matrix exposes a portion of the pixel electrodes. The light-blocking material and the black matrix are disposed in the main display area, either the light-blocking material or the black matrix is ​​disposed in the intermediate area, and the light-blocking material and the black matrix are not disposed in the component area.

[0011] The display panel may also include a second insulating layer comprising a light-transmitting material and disposed in the component region, covering the edge of the second pixel electrode, and including an opening exposing the central portion of the second pixel electrode.

[0012] The optical functional layer may also include color filters disposed in the region corresponding to the pixel electrode.

[0013] The display panel may also include spacers disposed on the first insulating layer and the second insulating layer. The spacers may include the same material as the second insulating layer.

[0014] The first insulating layer may at least partially overlap with the second insulating layer.

[0015] In the portion where the first insulating layer and the second insulating layer overlap, at least a portion of the second insulating layer may be disposed on the first insulating layer.

[0016] The width of the overlapping portion of the first insulating layer and the second insulating layer in the plan view may be greater than the thickness of the first insulating layer.

[0017] In the portion where the first insulating layer and the second insulating layer overlap, the thickness of the second insulating layer may be less than the thickness of the first insulating layer.

[0018] The light-blocking material can be placed in the middle area.

[0019] The black matrix can be set in the middle area.

[0020] The light-blocking material can be set in the area corresponding to the main display area and the middle area, but not in the area corresponding to the component area, and the black matrix can be set in the area corresponding to the main display area, but not in the area corresponding to the middle area and the component area.

[0021] The light-blocking material is set in the area corresponding to the main display area but not in the area corresponding to the middle area and the component area, and the black matrix can be set in the area corresponding to the main display area and the middle area but not in the area corresponding to the component area.

[0022] The first insulating layer or black matrix can be set in the area corresponding to the middle area.

[0023] The edges of the first insulating layer may have a serrated shape.

[0024] The edges of the black matrix may have convex and concave portions. The convex portions of the black matrix may be alternately arranged with the convex portions of the first insulating layer in the middle region.

[0025] The component area may have a transmissive area.

[0026] The first insulating layer may be disposed in an area corresponding to at least a portion of the component area other than the transmission area.

[0027] According to one or more embodiments, a display device includes a display panel and components. The display panel includes a main display area, a component area, and an intermediate area disposed between the main display area and the component area. The components are disposed below the display panel in an area corresponding to the component area. The display panel includes: a substrate; a plurality of pixel electrodes including a first pixel electrode disposed in the main display area, a second pixel electrode disposed in the component area, and a third pixel electrode disposed in the intermediate area; a first insulating layer including a light-blocking material and disposed on the substrate, the first insulating layer exposing the central portion of a portion of the plurality of pixel electrodes; and an optical functional layer disposed on the first insulating layer and including a black matrix, the black matrix exposing a portion of the plurality of pixel electrodes. The light-blocking material and the black matrix are disposed in the main display area, either the light-blocking material or the black matrix is ​​disposed in the intermediate area, and the light-blocking material and the black matrix are not disposed in the component area.

[0028] The display device may further include a second insulating layer disposed in a region corresponding to the component region, covering the edge of the second pixel electrode, and including an opening exposing a central portion of the second pixel electrode, the second insulating layer comprising a light-transmitting material.

[0029] The reflectivity of the middle area can be greater than that of the main display area but less than that of the component area.

[0030] The components may include at least one of an illuminance sensor and a proximity sensor.

[0031] Components may include a camera.

[0032] The display device may also include spacers disposed on the first insulating layer. The second insulating layer and the spacers may be made of the same material.

[0033] The first insulating layer may at least partially overlap with the second insulating layer.

[0034] These and / or other aspects will become apparent and more readily understood from the following detailed description of the embodiments, the accompanying drawings, and the claims. Attached Figure Description

[0035] The above and other aspects, features, and advantages of certain embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0036] Figure 1 , Figure 2 and Figure 3 This is a plan view of the display panel according to the implementation method;

[0037] Figure 4 and Figure 5 This is a cross-sectional view of a portion of a display device according to an embodiment;

[0038] Figure 6 This is a plan view of the display panel according to the implementation method;

[0039] Figure 7 It is an equivalent circuit diagram of the pixel circuit for driving the main sub-pixel and auxiliary sub-pixel according to the implementation method;

[0040] Figure 8A It is a plan view of a portion of the display area of ​​the display panel according to the embodiment;

[0041] Figure 8B , Figure 9A and Figure 9B yes Figure 8A A deformed view;

[0042] Figure 10 This is a cross-sectional view of a portion of the display panel of a display device according to an embodiment;

[0043] Figure 11 yes Figure 10 A deformed view;

[0044] Figure 12 This is a cross-sectional view of a portion of the display panel of a display device according to an embodiment;

[0045] Figure 13 yes Figure 12 A deformed view;

[0046] Figure 14A and Figure 14B yes Figure 8B A cross-sectional view of a portion of the display area;

[0047] Figure 15 yes Figure 13 Enlarged cross-sectional view of region C;

[0048] Figure 16A It is a plan view of a portion of the display area of ​​the display layer according to the embodiment;

[0049] Figure 16B It is a plan view of a portion of the filter plate corresponding to the optical functional layer according to the embodiment;

[0050] Figure 17A , Figure 17B , Figure 18A and Figure 18B yes Figure 16A and Figure 16B The deformed view; and

[0051] Figure 19 It is a plan view of a portion of the display area of ​​the display panel according to the embodiment. Detailed Implementation

[0052] Referring now to embodiments in detail, examples of which are illustrated in the accompanying drawings, in which the same reference numerals consistently indicate the same elements. In this respect, embodiments may take different forms and should not be construed as limited to the description set forth herein. Accordingly, embodiments are described below only with reference to the drawings to explain aspects of this description. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. Throughout this disclosure, the expression “at least one of a, b, and c” means only a, only b, only c, both a and b, both a and c, both b and c, all or variations thereof of a, b, and c.

[0053] Because this description allows for various modifications and numerous implementations, certain implementations will be shown in the accompanying drawings and described in the written description. The effects and features of this disclosure, as well as methods for implementing them, will be illustrated with reference to the embodiments described in detail below with reference to the accompanying drawings. However, this disclosure is not limited to the following embodiments and can be implemented in various forms.

[0054] In the following description, embodiments will be described with reference to the accompanying drawings, wherein the same reference numerals always indicate the same elements, and repeated descriptions thereof are omitted.

[0055] While terms such as "first" and "second" can be used to describe various components, such components should not be limited by these terms. These terms are used to distinguish one component from another.

[0056] Unless the context clearly indicates otherwise, the singular forms “a”, “an” and “the” used in this document are intended to include the plural forms as well.

[0057] It should be understood that the terms “comprise,” “comprising,” “include,” and / or “including” as used herein indicate the presence of the stated feature or component but do not preclude the addition of one or more other features or components.

[0058] It should also be understood that when a layer, area, or component is referred to as being "on" another layer, area, or component, it can be located directly or indirectly on that other layer, area, or component. That is, for example, there may be intermediate layers, areas, or components.

[0059] It should be understood that when a layer, area, or component is referred to as being "connected" to another layer, area, or component, it may be "directly connected" to the other layer, area, or component, or it may be "indirectly connected" to the other layer, area, or component with other layers, areas, or components in between. For example, it should be understood that when a layer, area, or component is referred to as being "electrically connected" to another layer, area, or component, it may be "directly electrically connected" to the other layer, area, or component, or it may be "indirectly electrically connected" to the other layer, area, or component with other layers, areas, or components in between.

[0060] In this specification, "A and / or B" means A or B, or A and B. In this specification, "at least one of A and B" means A or B, or A and B.

[0061] In the examples below, the x-axis, y-axis, and z-axis are not limited to the three axes of a Cartesian coordinate system and can be interpreted in a broader sense. For example, the x-axis, y-axis, and z-axis can be perpendicular to each other, or they can represent different directions that are not perpendicular to each other.

[0062] When the implementation methods can be different, a certain processing order may be executed differently from the described order. For example, two consecutively described processes may be executed substantially simultaneously or in the reverse order of their description.

[0063] For ease of explanation, the size of the elements in the accompanying drawings may be enlarged or reduced. For example, since the dimensions and thicknesses of the elements in the drawings are arbitrarily shown for ease of explanation, this disclosure is not limited thereto.

[0064] Figures 1 to 3 This is a plan view of the display panel 10 according to the embodiment.

[0065] Display panel 10 may include a light-emitting display panel containing light-emitting elements. As an example, display panel 10 may include: an organic light-emitting display panel using organic light-emitting diodes including organic emission layers, an ultra-miniature light-emitting diode display panel using micro light-emitting diodes, a quantum dot light-emitting display panel using quantum dot light-emitting diodes including quantum dot emission layers, and an inorganic light-emitting display panel using inorganic light-emitting elements including inorganic semiconductors.

[0066] The display panel 10 may be a rigid display panel with strength and therefore not easily bent, or the display panel 10 may be a flexible display panel and therefore easily bendable, foldable, or rollable. As examples, the display panel 10 may include a foldable display panel that can be folded or unfolded, a bent display panel whose display surface is bent, a flexible display panel whose area other than the display surface can be bent, a rollable display panel that can be rolled or unfolded, and a stretchable display panel.

[0067] Display panel 10 includes a display area DA and a peripheral area DPA. The display area DA displays images, while the peripheral area DPA does not display images. The display area DA includes a main display area MDA and a component area CA. The main display area MDA and the component area CA can display different images individually or collaboratively. The peripheral area DPA is a non-display area where no display elements are arranged. The display area DA can be completely surrounded by the peripheral area DPA. Components that are electronic elements can be arranged below the component area CA.

[0068] The component may be a camera that uses infrared or visible light and may include an imaging element. Alternatively, the component may include a solar cell, a flash, an illuminance sensor, a proximity sensor, and an iris sensor. Alternatively, the component may have the function of receiving sound. To reduce the limited functionality of the component, the component region CA may include a light and / or sound-transmitting region TA (see [reference]). Figure 4 ).

[0069] In an embodiment, the component region CA may be a region having a higher light transmittance and / or a higher sound transmittance than the main display region MDA. In an embodiment, when light passes through the component region CA, the light transmittance of the component region CA may be 10% or more, preferably 25% or more, 30% or more, 50% or more, 75% or more, 80% or more, 85% or more, or 90% or more.

[0070] The component area CA can be arranged inside and surrounded by the main display area MDA. Furthermore, the component area CA can be circular and there can be more than one. As an example, Figure 1 A component region CA is shown, and Figure 2Three component regions, CA1, CA2, and CA3, are shown. Each of the first component region CA1, the second component region CA2, and the third component region CA3 can be surrounded by a main display area MDA. The first component can be arranged corresponding to the first component region CA1, the second component can be arranged corresponding to the second component region CA2, and the third component can be arranged corresponding to the third component region CA3. The first to third components can have different functions. In one embodiment, a camera can be arranged in the first component region CA1, an illumination sensor can be arranged in the second component region CA2, and a proximity sensor can be arranged in the third component region CA3.

[0071] although Figure 1 and Figure 2 The component region CA is shown to be circular, but the implementation is not limited to this. For example, as shown... Figure 3 As shown, the shape of the component region CA can be an ellipse or a polygon such as a triangle or pentagon. The position and size of the component region CA can be modified differently.

[0072] exist Figure 3 In this case, a strip-shaped component region CA extending in one direction (e.g., the x-direction) can be provided, and multiple components can be arranged corresponding to the component region CA. In this embodiment, the component region CA may be partially surrounded by the main display region MDA, and at least a portion of the component region CA may contact the peripheral region DPA.

[0073] Figure 4 and Figure 5 This is a cross-sectional view of a portion of the display device 1 according to an embodiment.

[0074] Reference Figure 4 and Figure 5 The display device 1 may include a display panel 10 and a component 40 overlapping the display panel 10. A cover window (not shown) may be further arranged on the display panel 10 to protect the display panel 10.

[0075] Display panel 10 includes a component area CA and a main display area MDA. Component area CA may overlap with component 40, and main display area MDA may display a main image. Display panel 10 may include a substrate 100, a display layer DPL disposed above substrate 100, a touch screen layer TSL, an optical functional layer OFL, and a panel protective layer PB. Touch screen layer TSL and optical functional layer OFL may be disposed on display layer DPL, and panel protective layer PB may be disposed below substrate 100.

[0076] The display layer DPL may include a circuit layer PCL, a display element layer EDL, and an encapsulation layer. The circuit layer PCL may include thin-film transistors (TFTs), specifically a main TFT and an auxiliary TFT'. The display element layer EDL may include light-emitting elements, specifically a main light-emitting element ED and an auxiliary light-emitting element ED'. The encapsulation layer may include a thin-film encapsulation layer TFE or an encapsulation substrate (not shown). Insulating layers IL and IL' may be disposed between the substrate 100 and the display layer DPL and are disposed within the display layer DPL.

[0077] In the main display area MDA of the display panel 10, a main sub-pixel Pm and a main thin-film transistor TFT included in the main sub-pixel Pm may be arranged. The main sub-pixel Pm may include a main light-emitting element ED. In the component area CA of the display panel 10, an auxiliary sub-pixel Pa and an auxiliary thin-film transistor TFT' included in the auxiliary sub-pixel Pa may be arranged. The auxiliary sub-pixel Pa may include an auxiliary light-emitting element ED'.

[0078] The transmission region TA can be arranged within the component region CA. No display element may be arranged within the transmission region TA. The transmission region TA can be the area through which light / sound emitted from component 40 or incident on component 40 passes. Component 40 can be located in the region corresponding to component region CA.

[0079] A bottom metal layer (BML) may be disposed in the component region CA to overlap with the auxiliary thin-film transistor (TFT) in a plan view. The bottom metal layer (BML) may be disposed below the auxiliary thin-film transistor (TFT) to correspond to it. As an example, the bottom metal layer (BML) may be disposed between the auxiliary thin-film transistor (TFT) and the substrate 100. The bottom metal layer (BML) prevents external light from incident on the auxiliary thin-film transistor (TFT). In an embodiment, a constant voltage or signal may be applied to the bottom metal layer (BML).

[0080] The display element layer (EDL) may be covered by a thin-film encapsulation layer (TFE) or an encapsulation substrate. In one embodiment, the thin-film encapsulation layer (TFE) may include at least one inorganic encapsulation layer and at least one organic encapsulation layer. In another embodiment, the thin-film encapsulation layer (TFE) may include a first inorganic encapsulation layer 310 and a second inorganic encapsulation layer 330, and an organic encapsulation layer 320 disposed therebetween.

[0081] When the display element layer EDL is sealed by an encapsulation substrate (not shown), the encapsulation substrate may face the substrate 100 with the display element layer EDL disposed therebetween. A gap may exist between the encapsulation substrate and the display element layer EDL. The encapsulation substrate may include glass. A sealant is disposed between the substrate 100 and the encapsulation substrate. The sealant may include glass frit and is disposed in the peripheral region DPA. The sealant disposed in the peripheral region DPA prevents moisture from penetrating the sides of the display region DA while surrounding it.

[0082] A touchscreen layer (TSL) can obtain coordinate information corresponding to external inputs (e.g., touch events). A TSL may include touch electrodes and touch wiring connected to the touch electrodes. The TSL can sense external inputs using either self-capacitance or mutual capacitance methods.

[0083] The touchscreen layer TSL can be formed on a thin-film encapsulation layer TFE. Alternatively, the touchscreen layer TSL can be formed separately on the touch substrate and then bonded together using an optically clear adhesive such as OCA (see [link to OFE]). Figure 10 The adhesive layer is attached to the thin-film encapsulation layer TFE. In one embodiment, the touchscreen layer TSL can be formed directly on the thin-film encapsulation layer TFE. In this case, no adhesive layer may be arranged between the touchscreen layer TSL and the thin-film encapsulation layer TFE.

[0084] The optical functional layer OFL may include an anti-reflective layer. The anti-reflective layer reduces the reflectivity of light (external light) incident on the display device 1 from the outside.

[0085] In this embodiment, the optical functional layer OFL can be a polarizing film. The optical functional layer OFL may include an opening OFL_OP corresponding to the transmission region TA. Therefore, the light transmittance of the transmission region TA can be significantly improved. A transparent material such as optically transparent resin (OCR) can be used to fill the opening OFL_OP.

[0086] In the implementation method, such as Figure 5As shown, the optical functional layer OFL may include a filter plate 600 comprising a black matrix and color filters. The filter plate 600 may include a black matrix 610, color filters 620, and a cover layer 630. The color filter 620 may be selected based on the color of light emitted from each of the pixels of the display panel 10. For example, the color filter 620 may selectively transmit red, green, or blue light based on the color of light emitted from the light-emitting elements, i.e., the main light-emitting element ED and the auxiliary light-emitting element ED'. The color filter 620 and the black matrix 610 are not present in the transmission region TA. For example, the layer including the color filter 620 and the black matrix 610 may include an aperture 600OP corresponding to the transmission region TA. A portion of the aperture 600OP may be at least partially filled by the cover layer 630. The cover layer 630 may include an organic material such as resin. The organic material may be transparent.

[0087] Compared to display devices that include a polarizing plate, display devices that include an optical functional layer OFL containing a color filter 620 and a black matrix 610 can have a significantly reduced thickness.

[0088] A cover window (not shown) may be arranged on the display panel 10 to protect the display panel 10. The optical functional layer OFL may be attached to the cover window by optically transparent adhesive, or to the touch screen layer TSL by optically transparent adhesive.

[0089] A panel protective layer PB may be attached below the substrate 100 to support and protect the substrate 100. The panel protective layer PB may include an opening PB_OP corresponding to the component region CA. The panel protective layer PB can improve the light transmittance of the component region CA by including the opening PB_OP. The panel protective layer PB may include polyethylene terephthalate (PET) or polyimide (PI).

[0090] The area of ​​component region CA can be larger than the area where component 40 is arranged. Therefore, the area of ​​the opening PB_OP of the panel protective layer PB can be different from the area of ​​component region CA.

[0091] Figure 6 This is a plan view of the display panel 10 according to the embodiment.

[0092] Reference Figure 6 Various components constituting the display panel 10 are arranged on a substrate 100. The substrate 100 includes a display area DA and a peripheral area DPA surrounding the display area DA. The display area DA includes a main display area MDA and a component area CA. The main display area MDA can display a main image, and the component area CA can include a transmissive area TA and display an auxiliary image. The auxiliary image can form a whole image with the main image, or it can be an image independent of the main image.

[0093] Multiple main sub-pixels Pm are arranged in the main display area MDA. Each of the main sub-pixels Pm can be made of, for example, an organic light-emitting diode (OLED) (see...). Figure 7 This is achieved using display elements. Each main sub-pixel Pm can emit light, such as red, green, blue, or white light. The main display area MDA can be covered by an encapsulation layer, thus protecting it from external air or moisture.

[0094] As described above, the component region CA can be arranged on one side of the main display region MDA, or arranged inside the display region DA and surrounded by the main display region MDA. Multiple auxiliary sub-pixels Pa are arranged in the component region CA. Each of the multiple auxiliary sub-pixels Pa can be implemented by a display element such as an organic light-emitting diode (OLED). Each auxiliary sub-pixel Pa can emit, for example, red light, green light, blue light, or white light. The component region CA can be covered by an encapsulation layer and thus protected from external air or moisture.

[0095] The component region CA may include a transmission region TA. The transmission region TA may surround multiple auxiliary sub-pixels Pa. Alternatively, the transmission region TA and the multiple auxiliary sub-pixels Pa may be arranged in a lattice configuration.

[0096] The component area CA includes the transmissive area TA, and therefore, the resolution of the component area CA may be lower than the resolution of the main display area MDA. As an example, the resolution of the component area CA may be approximately 1 / 2, 3 / 8, 1 / 3, 1 / 4, 2 / 9, 1 / 8, 1 / 9, or 1 / 16 of the resolution of the main display area MDA. As an example, the resolution of the main display area MDA may be 400 ppi or more, and the resolution of the component area CA may be approximately 200 ppi or approximately 100 ppi.

[0097] Each of the pixel circuits driving the main sub-pixel Pm and the auxiliary sub-pixel Pa can be electrically connected to an external circuit arranged in the peripheral region DPA. The peripheral region DPA may include a first scan drive circuit SDV1, a second scan drive circuit SDV2, a terminal PAD, a drive voltage supply line 11, and a common voltage supply line 13.

[0098] The first scan driving circuit SDV1 can apply a scan signal to each of the pixel circuits driving the sub-pixels via the scan line SL; that is, the first scan driving circuit SDV1 can drive the main sub-pixel Pm and the auxiliary sub-pixel Pa. The first scan driving circuit SDV1 can apply an emission control signal to each pixel circuit via the emission control line EL. The second scan driving circuit SDV2 can be located on the opposite side of the first scan driving circuit SDV1, and approximately parallel to the first scan driving circuit SDV1, provided that the main display area MDA is disposed therein. Some of the pixel circuits corresponding to the main sub-pixel Pm in the main display area MDA can be electrically connected to the first scan driving circuit SDV1, and the remaining pixel circuits can be electrically connected to the second scan driving circuit SDV2. Some of the pixel circuits of the auxiliary sub-pixel Pa in the component area CA can be electrically connected to the first scan driving circuit SDV1, and the remaining pixel circuits can be electrically connected to the second scan driving circuit SDV2. The second scan driving circuit SDV2 can be omitted.

[0099] The terminal PAD can be disposed on one side of the substrate 100. The terminal PAD is not covered by an insulating layer and is exposed and connected to the display circuit board 30. A display driver 32 can be disposed on the display circuit board 30.

[0100] The display driver 32 generates control signals that are transmitted to the first scan drive circuit SDV1 and the second scan drive circuit SDV2. The display driver 32 generates data signals. The generated data signals are transmitted to the pixel circuits of the main sub-pixel Pm and the auxiliary sub-pixel Pa via the fan-out wiring FW and the data line DL connected to the fan-out wiring FW.

[0101] Display driver 32 can drive voltage ELVDD (see...) Figure 7 ) is supplied to the drive voltage supply line 11, and the common voltage ELVSS (see Figure 7 The driving voltage ELVDD is supplied to the common voltage supply line 13. The driving voltage ELVDD is applied to the pixel circuits corresponding to the main sub-pixel Pm and the auxiliary sub-pixel Pa through the driving voltage line PL connected to the driving voltage supply line 11. The common voltage ELVSS is applied to the opposite electrode of the display element through the common voltage supply line 13.

[0102] The drive voltage supply line 11 can be connected to the terminal PAD and can extend along the x-direction at the bottom of the main display area MDA. The common voltage supply line 13 can be connected to the terminal PAD and can have an annular shape including an open side to partially surround the main display area MDA.

[0103] Figure 7 This is an equivalent circuit diagram of the pixel circuit that drives the main sub-pixel Pm and the auxiliary sub-pixel Pa according to the implementation method.

[0104] Reference Figure 7 The pixel circuit PC can be connected to a light-emitting element to control the light emission of sub-pixels. The light-emitting element can be an organic light-emitting diode (OLED). The pixel circuit PC includes a driving transistor T1, a switching transistor T2, and a capacitor Cst. The switching transistor T2 is connected to the scan line SL and the data line DL, and transmits the data signal Dm to the driving transistor T1 in response to the scan signal Sn input through the scan line SL. The data signal Dm is input through the data line DL.

[0105] The capacitor Cst is connected to the switching transistor T2 and the drive voltage line PL, and stores the voltage corresponding to the difference between the voltage delivered from the switching transistor T2 and the drive voltage ELVDD supplied to the drive voltage line PL.

[0106] The driving transistor T1 is connected between the driving voltage line PL and the light-emitting element, and can control the driving current flowing from the driving voltage line PL to the light-emitting element according to the voltage stored in the capacitor Cst. The organic light-emitting diode (OLED) can emit light with a preset brightness according to the driving current.

[0107] although Figure 7 The description describes a pixel circuit PC comprising two thin-film transistors and one capacitor, but the implementation is not limited to this. In another embodiment, the pixel circuit PC may include seven thin-film transistors and one storage capacitor. In yet another embodiment, the pixel circuit PC may include two or more storage capacitors.

[0108] In this implementation, the pixel circuit driving the main sub-pixel Pm and the pixel circuit driving the auxiliary sub-pixel Pa may have different structures. For example, the pixel circuit driving the main sub-pixel Pm may include seven thin-film transistors and one or more storage capacitors, and the pixel circuit driving the auxiliary sub-pixel Pa may include two thin-film transistors and one storage capacitor.

[0109] Figure 8A This is a plan view of a portion of the display area DA of the display panel 10 according to the embodiment, and Figure 8B , Figure 9A and Figure 9B yes Figure 8A A distorted view.

[0110] Reference Figure 8A A first pixel P1 may be arranged in the main display area MDA. The first pixel P1 may include a red first pixel P1r, a green first pixel P1g, and a blue first pixel P1b. In an embodiment, as... Figure 8AAs shown, the red first pixel P1r, the green first pixel P1g, and the blue first pixel P1b can be arranged in a pentile pattern. In another embodiment, the red first pixel P1r, the green first pixel P1g, and the blue first pixel P1b can be arranged in a stripe pattern.

[0111] The red first pixel P1r, green first pixel P1g, and blue first pixel P1b may have different sizes (or widths). For example, the blue first pixel P1b may be larger than the red first pixel P1r and the green first pixel P1g, and the red first pixel P1r may be larger than the green first pixel P1g. In an embodiment, the blue first pixel P1b and the red first pixel P1r may have a rhomboid shape. The green first pixel P1g may have a rectangular shape. Adjacent green first pixels P1g may extend in different directions.

[0112] A second pixel P2 may be arranged in the component region CA. The second pixel P2 may include a red second pixel P2r, a green second pixel P2g, and a blue second pixel P2b. Although in Figure 8A The diagram shows a second pixel P2 having the same configuration as the first pixel P1 in the main display area MDA, but the implementation is not limited to this. In another embodiment, the second pixel P2 may have a different configuration than the first pixel P1. As an example, the first pixel P1 may be arranged in a pentile configuration, and the second pixel P2 may be arranged in a stripe configuration, or the size of each of the second pixels P2 may be smaller than that of each of the first pixels P1.

[0113] The intermediate region MA is the area located between the main display area MDA and the component area CA. A third pixel P3 may be arranged in the intermediate region MA. The third pixel P3 may include a red third pixel P3r, a green third pixel P3g, and a blue third pixel P3b, as shown below. Figure 19 As shown in the diagram. In another embodiment, the pixels may not be arranged in the central region MA. Although in Figure 8A The diagram shows that the intermediate region MA is continuously arranged between the main display area MDA and the component area CA, but the intermediate region MA may be discontinuously arranged between the main display area MDA and the component area CA.

[0114] like Figure 10As described below, in this embodiment, the main display area MDA may be the area where the first insulating layer 119a overlaps with the black matrix 610. The intermediate area MA may be the area where the first insulating layer 119a does not overlap with the black matrix 610. In other words, the intermediate area MA may be an area where only one of the first insulating layer 119a and the black matrix 610 is arranged. The component area CA may be an area where neither the first insulating layer 119a nor the black matrix 610 is arranged. Since the intermediate area MA includes either the first insulating layer 119a or the black matrix 610, the degradation in the image sensed by the user due to the reflectivity difference between the main display area MDA and the component area CA can be reduced more effectively.

[0115] In another embodiment, such as Figure 8B As shown, the first insulating layer 119a or black matrix 610 is arranged to correspond to the component region CA. In the component region CA, the first insulating layer 119a may not overlap with the black matrix 610, and as... Figure 10 As described below, the first insulating layer 119a or the black matrix 610 may be arranged in component region CA such that they do not overlap in a plan view. The area of ​​component region CA in which the first insulating layer 119a or the black matrix 610 is arranged may be defined as the first component region CA1. The area of ​​component region CA in which neither the first insulating layer 119a nor the black matrix 610 is arranged may be defined as the second component region CA2.

[0116] In component region CA, although the first insulating layer 119a or the black matrix 610 can be arranged as follows Figure 8B The grid configuration shown is not limited to this. As described above, the first insulating layer 119a or the black matrix 610 is arranged to correspond to a portion of the component region CA, and thus, degradation in the user-sensed image due to the reflectivity difference between the main display region MDA and the component region CA can be reduced more effectively.

[0117] Figure 9A and Figure 9B The illustration shows a case where the component region CA includes a transmission region TA. The transmission region TA may be adjacent to the second pixel P2. As an example, the transmission region TA may be arranged between the second pixels P2. Figure 9A As shown, the transmission region TA can be arranged in an inclined direction relative to the x and y directions, or as... Figure 9B As shown, the transmission regions TA can be arranged to be adjacent to each other and surround the second pixel P2.

[0118] although Figure 9A and Figure 9B Not shown in the image, but the bottom metal layer BML (see...) Figure 4The transmissive region TA can be arranged in the component area CA and may include an opening. The shape of the transmissive region TA may be defined by the opening in the bottom metal layer BML. In an embodiment, the opening may have a generally quadrilateral shape, a generally circular shape, or an elliptical shape in a plan view. In an embodiment, the opening may have a cross shape. Various variations can be made to the arrangement of the opening in the bottom metal layer BML. In another embodiment, the bottom metal layer BML (see...) Figure 4 The part can be partially arranged to correspond to the component region CA, and the transmission region TA can be defined by a transmission window formed through multiple layers of insulating layers stacked on the substrate 100.

[0119] Figure 10 This is a cross-sectional view of a portion of the display panel 10 of the display device 1 according to the embodiment, and Figure 11 yes Figure 10 A distorted view. Figure 10 The display panel 10 may include a substrate 100, a display layer 200, and a thin film encapsulation layer 300.

[0120] Reference Figure 10 The substrate 100 may include insulating materials such as glass, quartz, and polymer resin. The substrate 100 may be a rigid substrate or a flexible substrate that is bendable, foldable, and rollable.

[0121] In this embodiment, substrate 100 may have a multilayer structure. Substrate 100 may include at least one base layer and at least one inorganic layer stacked sequentially and alternately. The at least one base layer may include a polymer resin. The polymer resin may include polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, or cellulose acetate propionate. The inorganic layer is a barrier layer configured to prevent the penetration of external foreign matter and may include a single layer or multiple layers comprising an inorganic insulating material such as silicon nitride, silicon oxynitride, and / or silicon oxide.

[0122] The buffer layer 111 reduces or blocks the penetration of foreign matter, moisture, or external air from beneath the substrate 100 and provides a flat surface on the substrate 100. The buffer layer 111 may comprise an inorganic insulating material such as silicon oxide, silicon oxynitride, and silicon nitride, and may have a single-layer or multi-layer structure comprising the above materials.

[0123] A pixel circuit PC may be disposed on the buffer layer 111. The pixel circuit PC includes a thin-film transistor (TFT) and a storage capacitor Cst. The TFT may include a semiconductor layer A1, a gate electrode G1, a source electrode S1, and a drain electrode D1. The gate electrode G1 may overlap with the channel region of the semiconductor layer A1, and the source electrode S1 and the drain electrode D1 may be connected to the source region and drain region of the semiconductor layer A1, respectively. A gate insulating layer 112 may be disposed between the semiconductor layer A1 and the gate electrode G1. A first interlayer insulating layer 113 and a second interlayer insulating layer 115 may be disposed between the gate electrode G1 and the source electrode S1 or between the gate electrode G1 and the drain electrode D1.

[0124] The storage capacitor Cst may overlap with the thin-film transistor (TFT). The storage capacitor Cst may include a first capacitor plate CE1 and a second capacitor plate CE2 that overlap each other. In an embodiment, the gate electrode G1 of the thin-film transistor TFT may be the first capacitor plate CE1 of the storage capacitor Cst. A first interlayer insulating layer 113 may be disposed between the first capacitor plate CE1 and the second capacitor plate CE2.

[0125] Semiconductor layer A1 may include polycrystalline silicon. In some embodiments, semiconductor layer A1 may include amorphous silicon. In some embodiments, semiconductor layer A1 may include an oxide of at least one of indium (In), gallium (Ga), tin (Sn), zirconium (Zr), vanadium (V), hafnium (Hf), cadmium (Cd), germanium (Ge), chromium (Cr), titanium (Ti), and zinc (Zn). Semiconductor layer A1 may include a channel region, a source region, and a drain region, wherein the source region and the drain region are doped with impurities.

[0126] The gate insulating layer 112 may include inorganic insulating materials such as silicon oxide, silicon oxynitride and silicon nitride, and may have a single-layer structure or a multi-layer structure including the above materials.

[0127] The gate electrode G1 or the first capacitor plate CE1 may include low-resistance conductive materials such as molybdenum (Mo), aluminum (Al), copper (Cu) and titanium (Ti), and have a single-layer structure or a multi-layer structure including the above materials.

[0128] The first interlayer insulation layer 113 may include inorganic insulating materials such as silicon oxide, silicon oxynitride, and silicon nitride, and may have a single-layer structure or a multi-layer structure including the above materials.

[0129] The second capacitor plate CE2 may include a single layer or multiple layers containing aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W) and / or copper (Cu).

[0130] The second interlayer insulation layer 115 may include inorganic insulating materials such as silicon oxide, silicon oxynitride, and silicon nitride, and may have a single-layer structure or a multi-layer structure including the above materials.

[0131] The source electrode S1 or drain electrode D1 may comprise a single layer or multiple layers containing aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and / or copper (Cu). As an example, the source electrode S1 or drain electrode D1 may comprise a three-layer structure of titanium layer / aluminum layer / titanium layer.

[0132] The planarization insulating layer 117 may comprise a material different from that of at least one inorganic insulating layer disposed thereunder, such as gate insulating layer 112, first interlayer insulating layer 113, and second interlayer insulating layer 115. The planarization insulating layer 117 may comprise an organic insulating material, such as acrylic acid, benzocyclobutene (BCB), polyimide, or hexamethyldisiloxane (HMDSO).

[0133] A first pixel electrode 210a may be formed on the planarization insulating layer 117 to correspond to the main display area MDA. The first pixel electrode 210a may be electrically connected to the pixel circuit PC disposed below it through a contact hole formed in the planarization insulating layer 117.

[0134] The first pixel electrode 210a may include a reflective layer comprising silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), or compounds thereof. The first pixel electrode 210a may include a reflective layer and a transparent conductive layer disposed on and / or beneath the reflective layer. The reflective layer may include the materials described above. The transparent conductive layer may include indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In2O3), indium gallium oxide (IGO), or aluminum zinc oxide (AZO). In an embodiment, the first pixel electrode 210a may have a three-layer structure of ITO layer / Ag layer / ITO layer.

[0135] The first insulating layer 119a may cover the edge of the first pixel electrode 210a and includes a first opening OP1 exposing the central portion of the first pixel electrode 210a. In this embodiment, the first insulating layer 119a may include a light-blocking material and an organic insulating material such as BCB, polyimide, or HMDSO. Therefore, the first insulating layer 119a can be used as an opaque layer, i.e., a non-transparent layer. As an example, the light-blocking material may include colored pigments, such as white, black, or other colored pigments, or may include polyimide (PI) binders and a mixture of red and green pigments, or may include cardo-based binder resins and a mixture of lactam-based black and blue pigments. Alternatively, the light-blocking material may include carbon black.

[0136] The first opening OP1 of the first insulating layer 119a can define an emission region EA. Red light, green light, or blue light can be emitted through the emission region EA. The area or width of the emission region EA can define the area or width of a pixel.

[0137] Spacers 120 may be formed on the first insulating layer 119a. Spacers 120 prevent damage to the layers beneath them due to the mask during the formation of the intermediate layer 222, etc. Spacers 120 may include organic insulating materials such as BCB, polyimide, or HMDSO, and may also include light-transmitting materials.

[0138] The intermediate layer 222 may include a first emitting layer 222a overlapping the first pixel electrode 210a. The first emitting layer 222a may include an organic material. The first emitting layer 222a may include a polymeric organic material or a low molecular weight organic material that emits light of a predetermined color. The first emitting layer 222a may be formed by a deposition process using a mask as described above.

[0139] A first functional layer 221 and a second functional layer 223 may be arranged below and / or above the first emission layer 222a.

[0140] The first functional layer 221 may comprise a single layer or multiple layers. For example, when the first functional layer 221 comprises a polymer material, it may comprise a hole transport layer (HTL) having a single-layer structure, and may comprise poly(3,4-ethylenedihydroxythiophene) (PEDOT) or polyaniline (PANI). When the first functional layer 221 comprises a low molecular weight material, it may comprise a hole injection layer (HIL) and a hole transport layer (HTL).

[0141] The second functional layer 223 may be omitted. For example, if the first functional layer 221 and the first emission layer 222a are made of polymer materials, the second functional layer 223 may preferably be formed. The second functional layer 223 may comprise a single layer or multiple layers. The second functional layer 223 may comprise an electron transport layer (ETL) and / or an electron injection layer (EIL).

[0142] The first functional layer 221 and the second functional layer 223 can each be set as a main body to completely cover the display area DA. For example Figure 10 As shown, the first functional layer 221 and the second functional layer 223 can be arranged as a main body above the display area DA.

[0143] The counter electrode 230 may include a conductive material having a relatively low work function. As an example, the counter electrode 230 may include a (semi-)transparent layer comprising silver (Ag), magnesium (Mg), aluminum (Al), nickel (Ni), chromium (Cr), lithium (Li), calcium (Ca), or alloys thereof. Alternatively, the counter electrode 230 may also include a layer on top of the (semi-)transparent layer comprising the above materials, the layer comprising ITO, IZO, ZnO, or In2O3. In an embodiment, the counter electrode 230 may include silver (Ag) and magnesium (Mg). The counter electrode 230 may be disposed as a main body above the display area DA.

[0144] The stacked structure of the first pixel electrode 210a, the first intermediate layer 220a and the opposite electrode 230 stacked in sequence can constitute a light-emitting diode, for example, a first organic light-emitting diode OLED1.

[0145] The display layer 200, which includes pixel circuitry PC, an insulating layer, and a first organic light-emitting diode OLED1, can be covered by a thin-film encapsulation layer 300.

[0146] The thin-film encapsulation layer 300 may include a first inorganic encapsulation layer 310, a second inorganic encapsulation layer 330, and an organic encapsulation layer 320 disposed therebetween.

[0147] The first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 may each include at least one inorganic insulating material. The inorganic insulating material may include aluminum oxide, titanium oxide, tantalum oxide, hafnium oxide, zinc oxide, silicon oxide, silicon nitride, and / or silicon oxynitride. The first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 may be formed by chemical vapor deposition.

[0148] The organic encapsulation layer 320 may include polymeric materials. Polymeric materials may include acrylic resins, epoxy resins, polyimides, and polyethylene. For example, the organic encapsulation layer 320 may include acrylic resins, such as polymethyl methacrylate, polyacrylic acid, etc. The organic encapsulation layer 320 may be formed by curing monomers or coating polymers.

[0149] An input sensing layer 400 may be disposed on the thin-film encapsulation layer 300. The input sensing layer 400 may include a first conductive layer MTL1 and a second conductive layer MTL2, each including a sensing electrode and / or a trace. A first insulating film 410 may be disposed between the thin-film encapsulation layer 300 and the first conductive layer MTL1. A second insulating film 420 may be disposed between the first conductive layer MTL1 and the second conductive layer MTL2.

[0150] The first conductive layer MTL1 and the second conductive layer MTL2 may include conductive materials. The conductive materials may include molybdenum (Mo), aluminum (Al), copper (Cu), and titanium (Ti), and may comprise a single layer or multiple layers containing these materials. In an embodiment, the first conductive layer MTL1 and the second conductive layer MTL2 may have a Ti / Al / Ti structure in which titanium layers, aluminum layers, and titanium layers are sequentially stacked.

[0151] The first insulating film 410 and the second insulating film 420 may comprise inorganic insulating materials and / or organic insulating materials. Inorganic insulating materials may include silicon oxide, silicon oxynitride, and / or silicon nitride. Organic insulating materials may include acrylic organic materials and imide organic materials.

[0152] A filter plate 600, serving as an optical functional layer, may be disposed on the input sensing layer 400. The filter plate 600 may include a black matrix 610, a color filter 620, and a cover layer 630.

[0153] The black matrix 610 is arranged in the non-display area surrounding the emission area EA, and may surround the emission area EA. In an embodiment, the black matrix 610 may passivate the touch electrodes of the input sensing layer 400. As an example, such as Figure 10 As shown, the second conductive layer MTL2 of the input sensing layer 400 may overlap with and be covered by the black matrix 610. The black matrix 610 may include an insulating material (e.g., an organic insulating material) containing a black pigment or dye. The black matrix 610 may include a material that may be included in the first insulating layer 119a.

[0154] The black matrix 610 may include a via 610TH located in the region corresponding to the emission region EA. The via 610TH may be equal to or larger than the first opening OP1 of the first insulating layer 119a that defines the emission region EA.

[0155] Color filter 620 may be arranged in the emission region EA of the first organic light-emitting diode OLED1 and the second organic light-emitting diode OLED2. Depending on the color of the light emitted from the organic light-emitting diode OLED, color filter 620 may include red, green, or blue pigments or dyes.

[0156] The overlay 630 can be arranged on the black matrix 610 and the color filter 620 to planarize the top surface by covering the black matrix 610 and the color filter 620.

[0157] A cover window 700 may be arranged on the top layer of the filter plate 600, with an adhesive layer such as optically transparent adhesive OCA between them.

[0158] Similarly, a second organic light-emitting diode (OLED2) may also be arranged in the component region CA. The second OLED2 may include a second pixel electrode 210b, a second intermediate layer 220b, and a counter electrode 230. The second intermediate layer 220b may include a second emitting layer 222b. The second OLED2 may be electrically connected to the pixel circuitry PC disposed beneath it.

[0159] The second insulating layer 119b may cover the edge of the second pixel electrode 210b and includes a second opening OP2 exposing the central portion of the second pixel electrode 210b. In this embodiment, the second insulating layer 119b may comprise a transparent or translucent light-transmitting material. As an example, the second insulating layer 119b may comprise an organic insulating material such as BCB, polyimide, or HMDSO. In this embodiment, the second insulating layer 119b may comprise the same material as the spacer 120.

[0160] In this embodiment, the first insulating layer 119a extends from the main display area MDA to the component area CA and is disposed in the main display area MDA and the intermediate area MA. The first insulating layer 119a may not be disposed in the component area CA. As described above, the first insulating layer 119a comprises a light-blocking material, and therefore reduces the reflectivity of external light.

[0161] The black matrix 610 can be arranged to correspond to the main display area MDA. In an embodiment, the black matrix 610 may not be arranged in the intermediate area MA. Therefore, of the first insulating layer 119a and the black matrix 610, only the first insulating layer 119a can be arranged in the intermediate area MA.

[0162] The second insulating layer 119b may be disposed in the component region CA. Like the first insulating layer 119a, the second insulating layer 119b serves as a pixel defining layer. Unlike the first insulating layer 119a, the second insulating layer 119b may include a transparent insulating material. This is because the component 40 is disposed below the display panel 10 in the region corresponding to the component region CA, and the component 40 requires external light to operate. In embodiments where the component 40 is a proximity sensor and / or an illuminance sensor, the component 40 requires light corresponding to the wavelength of visible light to operate. In the component region CA, external light can pass through the second insulating layer 119b, which includes a transparent insulating material, and be received by the component 40. For this purpose, the black matrix 610 may not be disposed in the component region CA.

[0163] As described above, the first insulating layer 119a and the black matrix 610 include light-blocking materials to reduce the reflectivity of external light. In conventional display devices where no intermediate region MA is provided between the main display area MDA and the component area CA, and therefore the main display area MDA directly contacts the component area CA, the reflectivity of external light changes abruptly at the boundary between the main display area MDA and the component area CA because neither the first insulating layer 119a nor the black matrix 610 is arranged in the component area CA. This abrupt change in reflectivity at the boundary between the main display area MDA and the component area CA is visible to the user, and this phenomenon becomes more pronounced when the display device 1 is turned off.

[0164] Conversely, in the display device 1 according to the embodiment, an intermediate region MA, having a reflectivity between the main display area MDA and the component area CA, is arranged between the main display area MDA and the component area CA. This prevents the user from perceiving a sudden change in reflectivity at the boundary between the main display area MDA and the component area CA. A first insulating layer 119a or a black matrix 610 is arranged in the intermediate region MA, and therefore, the intermediate region MA has a reflectivity between the main display area MDA and the component area CA. Thus, the user may not be able to see the boundary line between the two areas. As an example, when the reflectivity of the main display area MDA is about 5%, the reflectivity of the component area CA may be about 12% to about 13%, and the reflectivity of the intermediate region MA may be about 8%, which is the intermediate value.

[0165] Figure 11 The display panel and Figure 10 The display panels are mostly similar, but with Figure 10 The difference in the display panel lies in the configuration of the MA in the central area. The rest of the configuration is the same as... Figure 10 The configurations are the same, so the following mainly describes the differences.

[0166] Reference Figure 11The first insulating layer 119a may not be disposed in the intermediate region MA, but the black matrix 610 may be disposed in the intermediate region MA. That is, the first insulating layer 119a may be disposed only in the main display region MDA, and the black matrix 610 may extend from the main display region MDA to the intermediate region MA to overlap with the intermediate region MA. As a result, only one of the first insulating layer 119a and the black matrix 610, each comprising light-blocking material, is disposed in the intermediate region MA, and the other of the first insulating layer 119a and the black matrix 610 is not disposed in the intermediate region MA. Therefore, the intermediate region MA has a higher reflectivity than the main display region MDA where the first insulating layer 119a overlaps with the black matrix 610. Therefore, the boundary between the main display region MDA and the component region CA may not be visible to the user. With this configuration, the user may not be able to identify differences in the image between the main display region MDA and the component region CA.

[0167] Figure 12 This is a cross-sectional view of a portion of the display panel 10 of the display device 1 according to the embodiment, and Figure 13 yes Figure 12 A distorted view.

[0168] Figure 12 and Figure 13 and Figure 10 and Figure 11 Similar, but with Figure 10 and Figure 11 The difference lies in the fact that the component area CA has, for example, Figure 9A or Figure 9B The transmission region TA is shown in the figure. Figure 12 and Figure 13 The display panel 10 has a transmissive region TA within the component region CA, and therefore, the light transmittance of the component region CA can be further improved. In an embodiment, it is arranged in... Figure 12 and Figure 13 The component 40 below the display panel 10 may be a camera.

[0169] An insulating layer on substrate 100, for example, at least one inorganic insulating layer IOL, planarization insulating layer 117, and second insulating layer 119b may each include a hole located in a region corresponding to the transmission region TA. The hole may be a transmission window. At least one inorganic insulating layer IOL may include at least one of gate insulating layer 112, first interlayer insulating layer 113, and second interlayer insulating layer 115.

[0170] At least one first hole IOL-H in the inorganic insulating layer IOL, a second hole 117H in the planarization insulating layer 117, and a third hole 119H in the pixel defining layer may overlap each other in the transmission region TA. The opposing electrode 230 may also include a fourth hole disposed in the transmission region TA, and the fourth hole may overlap with the first hole IOL-H, the second hole 117H, and the third hole 119H. The first hole IOL-H may be a through-hole formed through the gate insulating layer 112, the first interlayer insulating layer 113, and the second interlayer insulating layer 115. The second hole 117H and the third hole 119H may each be a through-hole.

[0171] Some of the insulating layers (e.g., buffer layer 111) may not include holes arranged in the transmission region TA. As an example, such as... Figure 12 As shown, the buffer layer 111 may cover the transmission region TA. In another embodiment, the buffer layer 111 may include holes disposed in the transmission region TA. In this case, a barrier layer (not shown) may be further disposed below the buffer layer 111. The barrier layer prevents moisture transmission and includes an inorganic layer.

[0172] The dimensions or widths of the first aperture IOL-H, the second aperture 117H, and the third aperture 119H may differ from each other. A single mask can be used to form the first aperture IOL-H, the second aperture 117H, and the third aperture 119H. For example, when forming the pattern of the first insulating layer 119a, the first aperture IOL-H, the second aperture 117H, and the third aperture 119H can be formed simultaneously.

[0173] Although not shown, the second pixel P2 can be compared with... Figure 12 The transmission region TA is adjacent.

[0174] Reference Figure 12 The first insulating layer 119a may extend from the main display area MDA to the component area CA and is disposed in both the main display area MDA and the intermediate area MA. The black matrix 610 may be arranged corresponding to the main display area MDA. In an embodiment, the black matrix 610 may not be disposed in the intermediate area MA. Therefore, only the first insulating layer 119a may be disposed in the intermediate area MA. The second insulating layer 119b may be disposed in the component area CA. Unlike the first insulating layer 119a, the second insulating layer 119b may comprise a transparent insulating material.

[0175] In conventional display devices, the first insulating layer 119a and the black matrix 610 each include light-blocking materials, and therefore, the external light reflectivity in the main display area MDA can be less than that in the component area CA. Since the first insulating layer 119a overlaps with the black matrix 610 in the main display area MDA, and neither the first insulating layer 119a nor the black matrix 610 is disposed in the component area CA, the difference in reflectivity between the main display area MDA and the component area CA can be significant.

[0176] Conversely, in the display device 1 according to the embodiment, the intermediate region MA is arranged between the main display region MDA and the component region CA. Therefore, it is possible to prevent the user from recognizing a sudden change in reflectivity at the boundary between the main display region MDA and the component region CA.

[0177] Reference Figure 13 The first insulating layer 119a is not disposed in the intermediate region MA, and only the black matrix 610 can be disposed in the intermediate region MA. That is, the first insulating layer 119a is disposed only in the main display region MDA, and the black matrix 610 can extend from the main display region MDA to the intermediate region MA. As a result, only one of the first insulating layer 119a and the black matrix 610, each comprising light-blocking material, can be disposed in the intermediate region MA. Therefore, the intermediate region MA has a higher external light reflectivity than the main display region MDA where the first insulating layer 119a and the black matrix 610 overlap, and a lower external light reflectivity than the component region CA, and therefore, the boundary line between the main display region MDA and the component region CA can not be recognized by the user. With this configuration, degradation in the image sensed by the user due to the reflectivity difference between the main display region MDA and the component region CA can be prevented.

[0178] Figure 14A and Figure 14B yes Figure 8B A cross-sectional view of a portion of the display area DA.

[0179] exist Figure 14A In the implementation method, the main display area MDA and the intermediate area MA are... Figure 10 The main display area MDA and the middle area MA are the same, and... Figure 14B In the implementation method, the main display area MDA and the intermediate area MA are... Figure 11 The main display area MDA and the intermediate area MA are the same. Figure 14A and Figure 14B Each implementation is different in component region CA.

[0180] Reference Figure 8B , Figure 14A and Figure 14B The component region CA may include a first component region CA1 and a second component region CA2. A first insulating layer 119a or a black matrix 610 is disposed in the first component region CA1, and the first insulating layer 119a and the black matrix 610 are not disposed in the second component region CA2. Figure 14A The structure of the first insulating layer 119a disposed in the region corresponding to the first component region CA1 is shown, and Figure 14BThe structure of the black matrix 610 is shown in the region corresponding to the first component region CA1.

[0181] As an example, the first component region CA1 can be arranged to form a mesh structure within the component region CA, such as... Figure 8B As shown in the diagram, the first component region CA1 includes one of the first insulating layer 119a and the black matrix 610, but does not include the other of the first insulating layer 119a and the black matrix 610, and therefore, the first component region CA1 prevents abrupt changes in reflectivity between the component region CA and the main display region MDA.

[0182] As another implementation method, in Figures 10 to 14B In some implementations, pixel circuits PC, including a first functional layer 221, a second functional layer 223, and / or thin-film transistors, may be omitted in at least a portion of the intermediate region MA.

[0183] Figure 15 yes Figures 10 to 13 Enlarged cross-sectional view of region C.

[0184] Reference Figure 15 The first insulating layer 119a may overlap with the second insulating layer 119b at the boundary between the main display area MDA and the intermediate area MA. The sum t0 of the thickness of the first insulating layer 119a and the thickness of the second insulating layer 119b in the overlapping area ORA may be approximately 1.2 times the thickness t2 of the first insulating layer 119a or the second insulating layer 119b in areas other than the overlapping area ORA.

[0185] In the manufacturing method according to the embodiment, a first insulating layer 119a may be formed first, and then a second insulating layer 119b may be formed on the first insulating layer 119a. The first insulating layer 119a may be formed on the planarization insulating layer 117 to correspond to the main display area MDA, and may also be formed in the intermediate area MA, depending on the situation. After the first insulating layer 119a is formed, the second insulating layer 119b may be formed on the planarization insulating layer 117 to correspond to the component area CA, and may also be formed in the intermediate area MA. In the embodiment, the second insulating layer 119b may include the same material as the spacer 120 disposed on the first insulating layer 119a, and may be formed simultaneously with the spacer 120.

[0186] The width d of the overlapping region between the first insulating layer 119a and the second insulating layer 119b can be from about 1 μm to about 10 μm. Furthermore, when the thickness t2 of the first insulating layer 119a is from about 1 μm to about 10 μm, the thickness of the second insulating layer 119b disposed on the first insulating layer 119a can be from about 0.1 μm to about 1 μm. As an example, the width d of the overlapping region between the first insulating layer 119a and the second insulating layer 119b can be about 3 μm, and when the thickness t2 of the first insulating layer 119a is about 1.5 μm, the thickness t1 of the second insulating layer 119b on the first insulating layer 119a can be about 0.3 μm.

[0187] Figure 16A This is a plan view of a portion of the display area DA of the display layer DPL according to the embodiment, and Figure 16B This is a plan view of a portion of the filter plate 600 corresponding to the optical functional layer according to the embodiment. Figure 17A , Figure 17B , Figure 18A and Figure 18B yes Figure 16A and Figure 16B A distorted view.

[0188] Reference Figure 16A and Figure 16B The diagram shows a first insulating layer 119a arranged to correspond to the main display area MDA and the intermediate area MA, a second insulating layer 119b arranged to correspond to the component area CA, and a black matrix 610 arranged to correspond only to the main display area MDA. Figure 16A and Figure 16B Can correspond to Figure 10 or Figure 12 .

[0189] Reference Figure 16A The first opening OP1 of the first pixel P1 in the main display area MDA of the display layer DPL may correspond to the first emitting area EA1 on which the first emitting layer 222a is disposed. The first insulating layer 119a may be disposed to correspond to the non-emitting area NEA between the first emitting areas EA1. The first insulating layer 119a may include an opaque insulating material comprising a light-blocking material.

[0190] The second opening OP2 of the second pixel P2 in component region CA may correspond to the second emission region EA2 on which the second emission layer 222b is disposed. The second insulating layer 119b may be disposed to correspond to the non-emission region NEA between the second emission regions EA2. The second insulating layer 119b may include a transparent insulating material.

[0191] In the intermediate region MA, the third opening OP3 of the third pixel P3 may correspond to the third emission region EA3 where the third emission layer 222c is disposed. In this embodiment, the first insulating layer 119a may be disposed corresponding to the intermediate region MA. The first insulating layer 119a may extend from the main display region MDA to the intermediate region MA. The first insulating layer 119a may be disposed corresponding to the non-emission region NEA between the third emission regions EA3.

[0192] The end 119aE of the boundary between the intermediate region MA and the component region CA of the first insulating layer 119a can be arranged in a zigzag shape between the third pixel P3 and the second pixel P2 in a plan view. This may be because the end 119aE of the first insulating layer 119a is arranged in the region between the third pixel P3 and the second pixel P2 at substantially the same distance from the edges of the third pixel P3 and the second pixel P2. In an embodiment, as... Figure 16A As shown, the ends 119aE of the first insulating layer 119a can be arranged to surround both sides of the third emission region EA3 or the second emission region EA2 in a plan view. The shape of the ends 119aE of the first insulating layer 119a can vary depending on the pixel configuration. In another embodiment, the ends 119aE of the first insulating layer 119a can have a straight shape along one direction.

[0193] Spacers 120 may be disposed on the first insulating layer 119a. Spacers 120 may be disposed at predetermined intervals in the non-emissive area (NEA). Spacers 120 may comprise a material different from that of the first insulating layer 119a. As an example, spacers 120 may comprise a transparent insulating material. As an example, spacers 120 may comprise the same material as the second insulating layer 119b.

[0194] At the boundary between the intermediate region MA and the component region CA, the first insulating layer 119a may partially overlap with the second insulating layer 119b. This can be understood as... Figure 15 The overlapping region ORA described in the text. That is, the end 119bE of the second insulating layer 119b can be arranged on the first insulating layer 119a.

[0195] Reference Figure 16B The optical functional layer OFL, and the black matrix 610 may be arranged only in the main display area MDA. In the main display area MDA, the black matrix 610 may include vias 610TH corresponding to the first emission area EA1 of the first pixel P1 in the underlying display layer DPL.

[0196] The black matrix 610 is formed by the edge 610E of the boundary between the main display area MDA and the intermediate area MA. In a plan view, the edge 610E of the black matrix 610 can be arranged in a zigzag shape between the first pixel P1 and the third pixel P3. This is because the edge 610E of the black matrix 610 is arranged in the area between the first pixel P1 and the third pixel P3 at substantially the same distance from the edges of the first pixel P1 and the third pixel P3. The shape of the edge 610E of the black matrix 610 can vary depending on the pixel configuration. In another embodiment, the edge 610E of the black matrix 610 can have a straight shape along one direction.

[0197] Reference Figure 17A and Figure 17B The diagram shows a first insulating layer 119a arranged to correspond only to the main display area MDA, a second insulating layer 119b arranged to correspond to the component area CA and the intermediate area MA, and a black matrix 610 arranged to correspond to the main display area MDA and the intermediate area MA. Figure 17A and Figure 17B Can correspond to Figure 11 or Figure 13 The arrangement of pixels, namely the first pixel P1, the second pixel P2, and the third pixel P3, and... Figure 16A and Figure 16B The pixels are arranged the same, and the differences between the first insulating layer 119a, the second insulating layer 119b and the black matrix 610 are mainly described below.

[0198] Reference Figure 17A The display layer DPL, the first insulating layer 119a, has an end 119aE at the boundary between the main display area MDA and the intermediate area MA, which can be arranged in a sawtooth shape in the plan view between the first pixel P1 and the third pixel P3. This is likely because the end 119aE of the first insulating layer 119a is arranged in the area between the first pixel P1 and the third pixel P3 at substantially the same distance from the edges of the first pixel P1 and the third pixel P3. In the embodiment, as... Figure 17A As shown, the ends 119aE of the first insulating layer 119a can be arranged to surround both sides of the first emitting region EA1 or the third emitting region EA3 in a plan view. The shape of the ends 119aE of the first insulating layer 119a can vary depending on the pixel configuration. In another embodiment, the ends 119aE of the first insulating layer 119a can have a straight shape along one direction.

[0199] In the boundary between the main display area MDA and the intermediate area MA, the first insulating layer 119a may partially overlap with the second insulating layer 119b. This can be understood as... Figure 15 The overlapping region ORA described in the text. That is, the end 119bE of the second insulating layer 119b can be arranged on the first insulating layer 119a.

[0200] Reference Figure 17B The optical functional layer OFL, the black matrix 610 can extend from the main display area MDA to the intermediate area MA. Therefore, in the main display area MDA and the intermediate area MA, the black matrix 610 can include a via 610TH corresponding to the first emission area EA1 of the first pixel P1 and the third emission area EA3 of the third pixel P3 in the underlying display layer DPL.

[0201] The end 610E of the boundary between the forming component region CA and the intermediate region MA of the black matrix 610 can be arranged in a zigzag shape in the plan view between the second pixel P2 and the third pixel P3. This is because the end 610E of the black matrix 610 is arranged in the area between the second pixel P2 and the third pixel P3 at substantially the same distance from the edges of the second pixel P2 and the third pixel P3. The shape of the end 610E of the black matrix 610 can vary depending on the pixel configuration. In another embodiment, the end 610E of the black matrix 610 can have a straight shape along one direction.

[0202] Reference Figure 18A and Figure 18B This illustrates a first insulating layer 119a arranged corresponding to the main display area MDA and the intermediate area MA, a second insulating layer 119b arranged corresponding to the component area CA and the intermediate area MA, and a black matrix 610 arranged corresponding to the main display area MDA and the intermediate area MA. The arrangement of pixels, namely the first pixel P1, the second pixel P2, and the third pixel P3, is shown in the diagram. Figure 16A and Figure 16B The pixels are arranged the same, and the differences between the first insulating layer 119a, the second insulating layer 119b and the black matrix 610 are mainly described below.

[0203] In this embodiment, the third emission region EA3 of one of the third pixels P3 arranged adjacent to each other in the intermediate region MA can be defined by the first insulating layer 119a, and the third emission region EA3 of the other third pixel P3 can be defined by the second insulating layer 119b.

[0204] In the intermediate region MA, the first insulating layer 119a may not overlap with the black matrix 610. That is, at least a portion of the first insulating layer 119a and at least a portion of the black matrix 610 may be arranged to correspond to the intermediate region MA, and may be arranged alternately with each other in the intermediate region MA without overlapping each other.

[0205] Therefore, in such Figure 18A In the plan view shown, the ends 119aE of the first insulating layer 119a can be arranged in a serrated shape in the middle region MA. In an embodiment, as... Figure 18AAs shown, the end 119aE of the first insulating layer 119a can be arranged to surround the third emission region EA3 on three sides.

[0206] The first insulating layer 119a may overlap with the second insulating layer 119b in a portion of the intermediate region MA. Additionally, the first insulating layer 119a may overlap with the second insulating layer 119b in a portion of the main display region MDA and the intermediate region MA, and in a portion of the component region CA and the intermediate region MA. This can be understood as... Figure 15 The overlapping region ORA is described in the figure. The end 119bE of the second insulating layer 119b may be arranged on the first insulating layer 119a.

[0207] Figure 19 This is a plan view of a portion of the display area DA of the display panel 10 according to the embodiment.

[0208] Reference Figure 19 The component region CA may include the transmission region TA. In other words, Figure 19 This can correspond to the above. Figure 9A or Figure 9B .

[0209] The first pixel P1 can be arranged in the main display area MDA. The first pixel P1 may include a red first pixel P1r, a green first pixel P1g, and a blue first pixel P1b. The first insulating layer 119a and the black matrix 610 can both be arranged to correspond to the main display area MDA, and the first insulating layer 119a can overlap with the black matrix 610 in the main display area MDA.

[0210] The second pixel P2 can be arranged in the component region CA. The second pixel P2 may include a red second pixel P2r, a green second pixel P2g, and a blue second pixel P2b. In this embodiment, the black matrix 610 may not be arranged in the component region CA, and a portion of the first insulating layer 119a may be arranged in the component region CA. Therefore, in Figure 19 In this process, the first insulating layer 119a not only defines the first pixel P1 in the main display area MDA, but also defines the second emission area EA2 of the second pixel P2 in the component area CA. This is because, in the case where a separate transmission area TA is arranged in the component area CA, the component 40 (see [reference]) can be emitted through the transmission area TA. Figure 4 Sufficient light is provided for operation. In another embodiment, even when a separate transmission region TA is provided within the component region CA, a second insulating layer 119b comprising a light-transmitting material may be arranged in the portion of the region.

[0211] The intermediate region MA can be arranged in at least a portion between the main display region MDA and the component region CA. In one embodiment, a third pixel P3 can be arranged in the intermediate region MA. The third pixel P3 may include a red third pixel P3r, a green third pixel P3g, and a blue third pixel P3b. In this case, the intermediate region MA is the area where the first insulating layer 119a or the black matrix 610 is disposed. The intermediate region MA can be defined as the area where the first insulating layer 119a does not overlap with the black matrix 610. Figure 19 The diagram shows the case where the black matrix 610 is not arranged, but the first insulating layer 119a is arranged to correspond to the intermediate region MA.

[0212] As described above, only one of the first insulating layer 119a and the black matrix 610, each comprising a light-blocking material, is arranged in the intermediate region MA. Therefore, the intermediate region MA can have a relatively high external light reflectivity compared to the main display region MDA, and a relatively low external light reflectivity compared to the component region CA. With this configuration, by making the boundary line between the main display region MDA and the component region CA gradually change, image degradation caused by abrupt changes in reflectivity between the main display region MDA and the component region CA can be reduced.

[0213] Although only display devices have been described above, this disclosure is not limited thereto. By way of example, methods of manufacturing display devices also fall within the scope of this disclosure.

[0214] According to the embodiments, a display panel with reduced boundary visibility in the component area and a display device including the display panel can be realized. However, the scope of this disclosure is not limited to this effect.

[0215] It should be understood that the embodiments described herein are to be considered in a descriptive sense only and not for limiting purposes. The description of features or aspects within each embodiment should generally be regarded as other similar features or aspects that may be used in other embodiments. Although one or more embodiments have been described with reference to figures, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope defined by the appended claims.

Claims

1. A display panel, comprising: The substrate includes a main display area, a component area on which at least one component is disposed, and an intermediate area disposed between the main display area and the component area; The pixel electrode includes a first pixel electrode disposed in the main display area, a second pixel electrode disposed in the component area, and a third pixel electrode disposed in the intermediate area; A first insulating layer, comprising a light-blocking material and disposed on the substrate, the first insulating layer exposing the central portion of a portion of the pixel electrodes; as well as An optical functional layer, disposed on the first insulating layer and including a black matrix, the black matrix exposing a portion of the pixel electrodes. The light-blocking material and the black matrix are disposed in the main display area, either the light-blocking material or the black matrix is ​​disposed in the middle area, and neither the light-blocking material nor the black matrix is ​​disposed in the component area.

2. The display panel of claim 1 further includes a second insulating layer comprising a light-transmitting material, and the second insulating layer is disposed in the component region, covering the edge of the second pixel electrode, and including an opening exposing a central portion of the second pixel electrode.

3. The display panel according to claim 2, wherein, The optical functional layer also includes a color filter disposed in the region corresponding to the pixel electrode.

4. The display panel according to claim 2, further comprising spacers disposed on the first insulating layer and the second insulating layer. in, The spacer comprises the same material as the second insulating layer.

5. The display panel according to claim 2, wherein, The first insulating layer and the second insulating layer at least partially overlap.

6. The display panel according to claim 5, wherein, In the portion where the first insulating layer and the second insulating layer overlap, at least a portion of the second insulating layer is disposed on the first insulating layer.

7. The display panel according to claim 5, wherein, The width of the overlapping portion of the first insulating layer and the second insulating layer in the plan view is greater than the thickness of the first insulating layer.

8. The display panel according to claim 7, wherein, In the portion where the first insulating layer and the second insulating layer overlap, the thickness of the second insulating layer is less than the thickness of the first insulating layer.

9. The display panel according to claim 2, wherein, The black matrix is ​​positioned in the central area.

10. The display panel according to claim 1, wherein, The light-blocking material is disposed in the area corresponding to the main display area and the intermediate area, but not in the area corresponding to the component area, and the black matrix is ​​disposed in the area corresponding to the main display area, but not in the area corresponding to the intermediate area and the component area.

11. The display panel according to claim 1, wherein, The light-blocking material is disposed in the area corresponding to the main display area but not in the area corresponding to the middle area and the component area, and the black matrix is ​​disposed in the area corresponding to the main display area and the middle area but not in the area corresponding to the component area.

12. The display panel according to claim 1, wherein, The edges of the black matrix have convex and concave portions, and The protrusions of the black matrix and the protrusions of the first insulating layer are alternately arranged in the intermediate region.

13. A display device, comprising: The display panel includes a main display area, a component area, and an intermediate area disposed between the main display area and the component area. as well as The component is disposed below the display panel in an area corresponding to the component area. The display panel includes: Substrate; Multiple pixel electrodes, the multiple pixel electrodes including a first pixel electrode disposed in the main display area, a second pixel electrode disposed in the component area and a third pixel electrode disposed in the intermediate area; A first insulating layer, comprising a light-blocking material and disposed on the substrate, the first insulating layer exposing a central portion of a portion of the plurality of pixel electrodes; and An optical functional layer, disposed on the first insulating layer and including a black matrix, the black matrix exposing a portion of the plurality of pixel electrodes. The light-blocking material and the black matrix are disposed in the main display area, either the light-blocking material or the black matrix is ​​disposed in the middle area, and neither the light-blocking material nor the black matrix is ​​disposed in the component area.

14. The display device of claim 13, further comprising a second insulating layer disposed in a region corresponding to the component region, the second insulating layer comprising a light-transmitting material, covering the edge of the second pixel electrode, and including an opening exposing a central portion of the second pixel electrode.

15. The display device according to claim 14, wherein, The reflectivity of the intermediate region is greater than that of the main display region but less than that of the component region.

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