Display panel, manufacturing method thereof, and display device having the display panel

Abstract

The present application relates to a display panel, a manufacturing method thereof, and a display device having the display panel. A display panel includes a first display area including a first light emitting area, and a second display area adjoining the first display area and including a second light emitting area and a signal transmission area; a base substrate; a circuit element layer disposed on the base substrate; a light shielding pattern disposed between the base substrate and the circuit element layer, overlapping the first light emitting area and the second light emitting area, and having a first opening corresponding to the signal transmission area; and a light emitting element layer disposed on the circuit element layer and including a first electrode overlapping the first light emitting area and the second light emitting area, a light emitting layer disposed on the first electrode, and a second electrode overlapping the first light emitting area and the second light emitting area. The signal transmission area has a second transmittance higher than a first transmittance of the second light emitting area.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2020-0037822, filed on March 27, 2020, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to a display panel, a method for manufacturing the same, and a display device including the display panel. More specifically, this disclosure relates to a display panel including a transparent display having improved transmittance in a signal transmission region, a method for manufacturing the display panel, and a display device including the display panel. Background Technology

[0004] Display devices may include various electronic modules and components, such as display panels for displaying images and input sensors for sensing external inputs. Electronic components are electrically connected by signal lines arranged in various ways and configurations. Display panels may include light-emitting elements that emit light. Input sensors may include sensing electrodes for sensing external inputs. Examples of electronic modules include cameras, infrared sensors, or proximity sensors, etc. Electronic modules may be arranged below the display panel, overlapping the display area of ​​the display panel. Summary of the Invention

[0005] This disclosure provides a display panel with improved transmittance in the signal transmission region.

[0006] This disclosure further provides a method for manufacturing a display panel that can effectively remove the cathode of the light-emitting element in the signal transmission area by irradiating an infrared laser beam without causing damage to the light-emitting area.

[0007] This disclosure further provides a display device including the display panel.

[0008] According to one embodiment, a display panel includes: a first display area including a plurality of first light-emitting areas; a second display area adjacent to the first display area and including a plurality of second light-emitting areas and a signal transmission area adjacent to the plurality of second light-emitting areas, wherein the plurality of second light-emitting areas in the second display area have a first transmittance, and the signal transmission area in the second display area has a second transmittance higher than the first transmittance of the plurality of second light-emitting areas; a substrate; a circuit element layer disposed on the substrate; a light-shielding pattern disposed between the substrate and the circuit element layer, overlapping the plurality of first light-emitting areas and the plurality of second light-emitting areas, and having a first opening corresponding to the signal transmission area; and a light-emitting element layer disposed on the circuit element layer. The light-emitting element layer includes: a first electrode overlapping the plurality of first light-emitting areas and the plurality of second light-emitting areas; a light-emitting layer disposed on the first electrode; and a second electrode overlapping the plurality of first light-emitting areas and the plurality of second light-emitting areas.

[0009] The second electrode may have a second opening corresponding to the signal transmission area, and the inner surface of the second electrode facing the second opening may include a plurality of uneven portions.

[0010] The inner surface of the second electrode may face the outer contour of the second opening when viewed in a plan view, and the outer contour includes a curve protruding outward from the second opening.

[0011] The first opening and the second opening can be substantially aligned with each other in the cross section.

[0012] The display panel may further include a first inorganic layer disposed between the substrate and the circuit element layer, and a light-shielding pattern may be disposed on or below the first inorganic layer.

[0013] The display panel may further include a second inorganic layer disposed between the substrate and the first inorganic layer, and a light-shielding pattern may be disposed between the first inorganic layer and the second inorganic layer.

[0014] Multiple signal transmission areas are provided, and multiple second light-emitting areas can be alternately arranged with multiple signal transmission areas.

[0015] Each of the plurality of first light-emitting regions and the plurality of second light-emitting regions may include a plurality of sub-light-emitting regions, and each of the sub-light-emitting regions may include at least one of a first color light-emitting region, a second color light-emitting region, and a third color light-emitting region.

[0016] The second light-emitting region in a plurality of second light-emitting regions can have a size that is substantially the same as the size of the signal transmission region adjacent to the second light-emitting region.

[0017] The light-shielding pattern may include a metal layer, and the metal layer may absorb or reflect infrared laser light incident on the metal layer.

[0018] The second luminescent region can transmit approximately 95% or more of the infrared laser light.

[0019] The light-shielding pattern can have a first thickness that is greater than the second thickness of the second electrode.

[0020] The first thickness of the light-shielding pattern can be in a first range from about 100 nm to about 500 nm, and the second thickness of the second electrode can be in a second range from about 5 nm to about 20 nm.

[0021] According to another embodiment, a method of manufacturing a display panel includes: providing an initial display panel, the initial display panel including a first display area and a second display area, the first display area including a plurality of first light-emitting areas, the second display area adjacent to the first display area and including a plurality of second light-emitting areas and a signal transmission area adjacent to the plurality of second light-emitting areas, wherein the plurality of second light-emitting areas in the second display area have a first transmittance, and the signal transmission area in the second display area has a second transmittance higher than the first transmittance of the plurality of second light-emitting areas; and irradiating a laser beam from a lower side of the initial display panel toward the signal transmission area. The initial display panel includes: a substrate; a circuit element layer disposed on the substrate; a light-shielding pattern disposed between the substrate and the circuit element layer, overlapping the plurality of first light-emitting areas and the plurality of second light-emitting areas, and having a first opening corresponding to the signal transmission area; and a light-emitting element layer disposed on the circuit element layer. The light-emitting element layer includes: a first electrode overlapping the plurality of first light-emitting areas and the plurality of second light-emitting areas; a light-emitting layer disposed on the first electrode; and an initial second electrode overlapping the plurality of first light-emitting areas, the plurality of second light-emitting areas, and the signal transmission area.

[0022] The substrate, circuit element layer, and light-emitting layer can transmit approximately 95% or more of the laser beam.

[0023] Irradiating a laser beam may include irradiating an initial second electrode with infrared laser light.

[0024] Irradiating a laser beam may include irradiating a portion of a plurality of second luminescent regions adjacent to the signal transmission region with a laser beam.

[0025] The light-shielding pattern may include a metal layer that absorbs or reflects the laser beam.

[0026] Irradiating the laser beam may include removing the portion of the initial second electrode corresponding to the signal transmission region.

[0027] According to another embodiment, a display device includes: a display panel including a first display area and a second display area adjacent to the first display area and including a light-emitting area and a signal-transmitting area, wherein the first display area has a first transmittance, and the second display area has a second transmittance higher than the first transmittance, and wherein the light-emitting area has a third transmittance, and the signal-transmitting area has a fourth transmittance higher than the third transmittance of the light-emitting area; and an electronic module disposed below the display panel and overlapping the first display area. The display panel includes: a substrate; a circuit element layer disposed on the substrate; a light-shielding pattern disposed between the substrate and the circuit element layer, overlapping the first display area and the light-emitting area, and having a first opening corresponding to the signal-transmitting area; and a light-emitting element layer disposed on the circuit element layer. The light-emitting element layer includes: a first electrode overlapping the first display area and the light-emitting area; a light-emitting layer disposed on the first electrode; and a second electrode overlapping the first display area and the light-emitting area.

[0028] Multiple electronic modules are provided, and these modules include cameras and sensors.

[0029] The second electrode may have a second opening corresponding to the signal transmission area, and the inner surface of the second electrode facing the second opening may include a plurality of uneven portions.

[0030] The second transmittance can correspond to the average of the third transmittance of the light-emitting region and the fourth transmittance of the signal-transmitting region.

[0031] Based on the above, cathodes (e.g., the second electrode of the light-emitting element layer) overlapping with the signal transmission area can be effectively removed without causing damage to the light-emitting area adjacent to the signal transmission area. Therefore, the transmittance of the signal transmission area of ​​a display panel, including a transparent display, can be improved. Attached Figure Description

[0032] The inventive concept of this disclosure will become apparent when considered in conjunction with the accompanying drawings by referring to the following detailed description, in which:

[0033] Figure 1 This is a perspective view of a display device according to an embodiment of the present disclosure;

[0034] Figure 2 This is an exploded perspective view of a display device according to an embodiment of the present disclosure;

[0035] Figure 3 This is a block diagram illustrating a display device according to an embodiment of the present disclosure;

[0036] Figure 4A and Figure 4B This is a cross-sectional view of a display module according to some embodiments of the present disclosure;

[0037] Figure 5 This is a plan view of a display panel according to an embodiment of the present disclosure;

[0038] Figure 6 This is a plan view of a display panel according to an embodiment of the present disclosure;

[0039] Figure 7 This is an enlarged plan view of a portion of a display panel according to an embodiment of the present disclosure;

[0040] Figure 8A and Figure 8B This is an enlarged plan view of a portion of a display panel according to some embodiments of the present disclosure;

[0041] Figure 9 This is a cross-sectional view of a display panel according to an embodiment of the present disclosure;

[0042] Figure 10 yes Figure 8A A magnified view of region XX';

[0043] Figure 11A and Figure 11B This is a cross-sectional view illustrating a method of manufacturing a display panel according to an embodiment of the present disclosure;

[0044] Figure 12 This is a cross-sectional view of a display panel according to another embodiment of the present disclosure; and

[0045] Figure 13A and Figure 13B This is a cross-sectional view of a display panel according to other embodiments of the present disclosure. Detailed Implementation

[0046] In this disclosure, it will be understood that when an element or layer is referred to as being “on”, “connected” or “coupled” to another element or layer, it may be directly connected or coupled to the other element or layer, or there may be one or more intermediate elements or layers between them.

[0047] Throughout this disclosure, the same reference numerals refer to the same elements. In the drawings, for ease of description of technical aspects, the thickness, scale, and dimensions of parts may be exaggerated. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0048] It will be understood that although the terms first, second, etc., may be used herein to describe various elements, components, areas, layers, and / or segments, these elements, components, areas, layers, and / or segments should not be limited to these terms. These terms are used only to distinguish one element, component, area, layer, or segment from another. Therefore, the first element, component, area, layer, or segment discussed herein may be referred to as the second element, component, area, layer, or segment without departing from the teachings of this disclosure. As used herein, the singular forms “a” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0049] For ease of description, spatial relative terms such as “below,” “under,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature and another element(s) as shown in the accompanying drawings. It will be understood that relative terms are intended to include different orientations of the device including the element in addition to those shown in the drawings. For example, if the device in one of the drawings is flipped, the element described as being “below” the other elements will subsequently be oriented “up” to the other elements. Thus, the exemplary term “below” may include both “below” and “up” orientations depending on the specific orientation of the figure. Similarly, if the device in one of the drawings is flipped, the element described as being “below” or “under” the other elements will subsequently be oriented “above” the other elements. The exemplary terms “below” or “under” may therefore include both “up” and “down” orientations depending on the specific orientation of the figure.

[0050] It should be further understood that, when used in this disclosure, the terms “comprising” and / or “including” specify the presence of the said feature, integer, step, operation, element, and / or component, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0051] Unless otherwise specified, the terms used herein (including technical and scientific terms) have the same general meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will be further understood that terms such as those defined in common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant field, and should not be interpreted in an idealized or overly formal sense, unless expressly so defined herein.

[0052] The present disclosure will be explained in detail below with reference to the accompanying drawings.

[0053] Figure 1 This is a perspective view of a display device DD according to an embodiment of the present disclosure, and Figure 2 This is an exploded perspective view of a display device DD according to an embodiment of the present disclosure.

[0054] Reference Figure 1 and Figure 2 The display device DD can be activated in response to an electrical signal. The display device DD can be implemented in various sizes and configurations. For example, the display device DD can be applied to large electronic devices such as televisions, monitors, or billboards, as well as small to medium-sized electronic devices such as personal computers, laptops, tablets, personal digital assistants, car navigation systems, gaming devices, mobile electronic devices, and cameras. However, these are merely exemplary, and the display device DD can be applied to other electronic devices without departing from the inventive concept of this disclosure. Hereinafter, a smartphone will be described as a representative example of a display device DD.

[0055] The display device DD can display an image IM towards a third direction DR3 via a display surface FS that is substantially parallel to the plane defined by the first direction DR1 and the second direction DR2. The display surface FS that displays the image IM can correspond to the front surface of the display device DD and the front surface of the window 100. Hereinafter, for convenience, the same reference numerals will be used to refer to the display surface and front surface of the display device DD and the front surface of the window 100. The image IM can include still images and moving images. Figure 1 The clock widget and app icon are shown as representative examples of image-based instant messaging.

[0056] In this embodiment, the front (or upper) surface and the rear (or lower) surface of each component may be defined relative to the direction of the displayed image IM. The front and rear surfaces are opposite to each other on a third direction DR3, and the normal direction of each of the front and rear surfaces may be substantially parallel to the third direction DR3. The first direction DR1, the second direction DR2, and the third direction DR3 may be substantially perpendicular to each other.

[0057] In this disclosure, the surface (e.g., display surface FS) defined by the first direction DR1 and the second direction DR2 may be referred to as a plane or a flat surface, and the expression "when viewed in a plane" may mean the state of viewing along the third direction DR3.

[0058] The display device DD may include a window 100, a display module 200, a driving circuit 300, a housing 400, and an electronic module 500. In this embodiment, the window 100 and the housing 400 may be coupled to each other to form the appearance of the display device DD.

[0059] Window 100 may include an optically transparent insulating material. For example, window 100 may include glass or plastic. Window 100 may have a single-layer or multi-layer structure. For example, window 100 may include multiple plastic films attached to each other by an adhesive, or it may include a glass substrate and plastic films attached to the glass substrate by an adhesive.

[0060] Window 100 can be divided in a plane into a transmissive region TA and a border region BZA. The transmissive region TA can correspond to an optically transparent region. The border region BZA can have a relatively lower transmittance than the transmissive region TA. The border region BZA can define the shape of the transmissive region TA. The border region BZA can be arranged adjacent to the transmissive region TA and can surround the transmissive region TA.

[0061] The border area BZA may have a predetermined color. The border area BZA may cover the peripheral area NAA of the display module 200 to prevent the peripheral area NAA from being seen from the outside. However, this is only an exemplary embodiment, and according to another embodiment of this disclosure, the border area BZA may be omitted from the window 100.

[0062] In this embodiment, the sensing region SSA may overlap with the electronic module 500 on the third-direction DR3. The display device DD can receive external signals for the electronic module 500 through the sensing region SSA, or can provide output signals from the electronic module 500 to external devices or components. According to this disclosure, the sensing region SSA may overlap with the transmission region TA. Therefore, a separate region for providing the sensing region SSA outside the transmission region TA, such as the border region BZA, can be omitted. Therefore, the size of the border region BZA can be reduced.

[0063] Figure 1 and Figure 2 A sensing region SSA is shown as a representative example; however, this disclosure should not be limited thereto or thereby. For example, two or more sensing regions SSA may be provided without departing from the scope of this disclosure. Furthermore, the sensing region SSA is shown as being at the upper left end of the transmission region TA; however, the sensing region SSA may be defined in various locations, such as the upper right end of the transmission region TA, the center of the transmission region TA, the lower left end of the transmission region TA, or the lower right end of the transmission region TA.

[0064] The display module 200 can be arranged below the window 100. The display module 200 can display the image IM. The display module 200 may include a front surface IS, which includes an active area AA and a peripheral area NAA. The active area AA can be activated in response to an electrical signal.

[0065] In this embodiment, the effective area AA of the display module 200 can correspond to the area displaying the image IM. The transmission area TA of the window 100 can overlap with the effective area AA of the display module 200. For example, the transmission area TA can overlap with at least a portion or the entirety of the effective area AA. Therefore, the user can view the image IM through the transmission area TA.

[0066] The peripheral area NAA of the display module 200 can be covered by the border area BZA of the window 100. The peripheral area NAA can be arranged adjacent to the active area AA. The peripheral area NAA can surround the active area AA. The drive circuit or drive line used to drive and activate the active area AA can be arranged in the peripheral area NAA.

[0067] In this embodiment, the display module 200 may have a flat shape, with the effective area AA and the peripheral area NAA facing the window 100; however, this is only an exemplary embodiment. For example, the display module 200 may be partially curved in the peripheral area NAA. In this case, the display module 200 may be curved towards the rear surface of the display device DD in the peripheral area NAA, and the size of the bezel area BZA in the front surface of the display device DD may be reduced. In another embodiment, the display module 200 may have a partially curved shape in the effective area AA. According to another embodiment of this disclosure, the peripheral area NAA may be omitted from the display module 200.

[0068] The driving circuit 300 can be electrically connected to the display module 200. The driving circuit 300 may include a main circuit board MB and a flexible film CF.

[0069] The flexible film CF can be electrically connected to the display module 200. The flexible film CF can be connected to pads located in the peripheral area NAA of the display module 200. The flexible film CF can provide electrical signals to the display module 200 to drive it. The electrical signals can be generated by the flexible film CF or the main circuit board MB. The main circuit board MB may include various drive circuits for driving the display module 200 or connectors (not shown) for receiving power.

[0070] In this embodiment, the portion of the effective area AA of the display module 200 corresponding to the sensing area SSA may have a relatively higher transmittance than the remaining portion of the effective area AA that does not overlap with the sensing area SSA. For example, at least some components of the display module 200 may be omitted from the portion of the effective area AA corresponding to the sensing area SSA. The electronic module 500 can easily transmit and / or receive signals through the sensing area SSA.

[0071] The electronic module 500 can be arranged below the display module 200. When viewed in a flat plane, the electronic module 500 can overlap with the sensing area SSA. The electronic module 500 can receive external input signals transmitted through the sensing area SSA, or can provide output signals through the sensing area SSA. The electronic module 500 may include a camera or various sensors, such as infrared sensors or proximity sensors, etc.

[0072] The housing 400 can be coupled to the window 100. The housing 400 coupled to the window 100 provides internal space for the display device DD. The display module 200 and the electronic module 500 can be housed in the internal space.

[0073] The housing 400 may include a material with relatively high rigidity. For example, the housing 400 may include multiple frames and / or plates containing glass, plastic, metal, or combinations thereof. The housing 400 can stably protect the components of the display device DD housed within its internal space from external impacts.

[0074] Figure 3 This is a block diagram illustrating a display device DD according to an embodiment of the present disclosure.

[0075] Reference Figure 3 The display device DD may include a display module 200, a power module PM, a first electronic module EM1, and a second electronic module EM2. The display module 200, the power module PM, the first electronic module EM1, and the second electronic module EM2 may be electrically connected to each other.

[0076] The display module 200 may include a display panel 210 and an input sensor 220.

[0077] The display panel 210 can generate an image IM. The image IM generated by the display panel 210 can be displayed through the front surface IS and viewed by the user through the transmission area TA.

[0078] Input sensor 220 can sense external input TC. For example, input sensor 220 can sense external input TC provided through window 100. External input TC can be user input. User input can include various forms and types of external input, such as input from and through a part of the user's body, input from a pen or pointer, light input, heat input, or pressure input. In this embodiment, external input TC is shown as a touch operation using the user's hand provided via the front surface IS; however, this is merely exemplary. As mentioned above, external input TC can be provided in various forms and types. For example, input sensor 220 can sense external input TC applied to the side or front surface IS of the display device DD. It should be understood that this disclosure is not limited to the specific embodiment.

[0079] The power module PM supplies power for operating the display device DD. The power module PM may include a battery module.

[0080] The first electronic module EM1 and the second electronic module EM2 may include various modules that can be operated in conjunction with the display device DD.

[0081] The first electronic module EM1 can be directly mounted on the motherboard that is electrically connected to the display module 200, or it can be mounted on a separate board and then electrically connected to the motherboard via a connector (not shown).

[0082] The first electronic module EM1 may include a control module CM, a wireless communication module TM, an image input module IIM, an audio input module AIM, a memory MM, and an external interface IF. Some of the modules included in the first electronic module EM1 can be electrically connected to the motherboard via their respective flexible printed circuit boards and are not mounted on the motherboard.

[0083] The control module CM can control the operation of the display device DD. The control module CM can be, but is not limited to, a microprocessor, microcontroller, central processing unit (CPU), and graphics processing unit (GPU). For example, the control module CM can activate or deactivate the display module 200. The control module CM can control other modules, such as the image input module IIM or the audio input module AIM, based on touch signals provided by the user and received from the display module 200.

[0084] The wireless communication module TM can transmit wireless signals to or receive wireless signals from another wireless communication terminal via a wireless communication link such as a Bluetooth link or a Wi-Fi link. The wireless communication module TM can transmit / receive voice signals using an audio communication line. The wireless communication module TM may include a transmitter TM1 for modulating the signal to be transmitted and transmitting the modulated signal, and a receiver TM2 for demodulating the modulated signal received via the wireless communication link.

[0085] The image input module IIM can process image signals and convert them into image data that can be provided to the display module 200 for display. The audio input module AIM can receive external audio signals through a microphone in recording mode or voice recognition mode and convert the audio signals into electronic voice data.

[0086] The external interface IF can be used as an interface between the control module CM and external devices such as external chargers, wired / wireless data ports, and card (e.g., memory cards and subscriber identity module (SIM) / removable user identity module (R-UIM) card) sockets.

[0087] The second electronic module EM2 may include an audio output module AOM, a light-emitting module LM, a light-receiving module LRM, and a camera module CMM. The components of the second electronic module EM2 can be directly mounted on the motherboard, or can be electrically connected to the display module 200 via a connector (not shown) after being mounted on a separate board, or can be electrically connected to the first electronic module EM1.

[0088] The audio output module AOM can convert and output audio data received from the wireless communication module TM or audio data stored in the memory MM.

[0089] A light-emitting module (LM) can generate and emit light. The LM can emit infrared light. The LM may include a light-emitting diode (LED) capable of emitting visible light. A light-receiving module (LRM) can sense infrared light. The LRM can sense infrared light at a predetermined level or higher. The LRM may include a complementary metal-oxide-semiconductor (CMOS) sensor. In one embodiment, infrared light generated and emitted by the LM may be reflected by an external object, such as a user's hand or face, and then incident on the LRM. A camera module (CMM) can capture images of the external environment.

[0090] Reference Figure 2 The described electronic module 500 may include at least one of a first electronic module EM1 and a second electronic module EM2. For example, electronic module 500 may include at least one of an audio output module AOM, a light emission module LM, a light receiving module LRM, a camera module CMM, and a thermal sensing module (not shown). Electronic module 500 may sense external objects through a sensing area SSA, or may provide audio signals such as voice signals, or emit light such as infrared light.

[0091] Figure 4A and Figure 4B This is a cross-sectional view of a display module according to some embodiments of the present disclosure.

[0092] Figure 4A According to embodiments of this disclosure Figure 2 Cross-sectional view of display module 200.

[0093] Reference Figure 3 and Figure 4A The display module 200 may include a display panel 210 and an input sensor 220. The display panel 210 may include a substrate BS, a circuit element layer ML, a light-emitting element layer EL, and a thin-film encapsulation layer TFE. The display panel 210 may further include a light-shielding pattern BLL between the substrate BS and the circuit element layer ML. The input sensor 220 may include a substrate layer and a sensing circuit layer ML-T. The thin-film encapsulation layer TFE and the substrate layer may be the same layer, and the substrate layer may also be referred to hereinafter as the thin-film encapsulation layer TFE or the substrate layer TFE.

[0094] According to this embodiment, the display panel 210 and the input sensor 220 can be formed by a continuous process. For example, the sensing circuit layer ML-T can be formed directly on the thin-film encapsulation layer (or substrate layer) TFE.

[0095] The substrate BS can be a silicon substrate, a plastic substrate, a glass substrate, an insulating film, or a stacked structure including multiple insulating layers.

[0096] The circuit element layer ML can be disposed on the substrate BS. The circuit element layer ML may include multiple insulating layers, multiple conductive layers, and at least one semiconductor layer. The conductive layers of the circuit element layer ML may include signal lines and / or pixel control circuitry.

[0097] The light-shielding pattern BLL can block light or laser beams that can pass through the substrate BS from entering the display panel 210. (See reference...) Figure 9 This will be described in detail.

[0098] The light-emitting element layer EL can be disposed on the circuit element layer ML. The light-emitting element layer EL can generate and emit light. In an example of an organic light-emitting display panel, the light-emitting layer may include an organic light-emitting material. The light-emitting layer of a quantum dot light-emitting display panel may include at least one of quantum dots and quantum rods.

[0099] The sensing circuit layer ML-T of the input sensor 220 can be disposed on the substrate TFE. The sensing circuit layer ML-T may include multiple insulating layers and multiple conductive layers. The conductive layers may include sensing electrodes for sensing external input, sensing lines connected to the sensing electrodes, and sensing pads connected to the sensing lines.

[0100] Figure 4B This is a cross-sectional view of a display module 200-1 according to another embodiment of the present disclosure. Figure 4B In the figures, the same reference numerals indicate Figure 4A The same elements in the text will be omitted, and detailed descriptions of the same elements will be omitted.

[0101] Reference Figure 4B The display module 200-1 may include a display panel 210-1 and an input sensor 220-1. The display panel 210-1 may include a substrate BS, a circuit element layer ML, and a light-emitting element layer EL. The input sensor 220-1 may include a cover substrate CBL and a sensing circuit layer ML-T.

[0102] The cover substrate CBL can be disposed on the light-emitting element layer EL. The cover substrate CBL can be a silicon substrate, a plastic substrate, a glass substrate, an insulating film, or a stacked structure including multiple insulating layers. A predetermined space (or gap) can be defined between the cover substrate CBL and the light-emitting element layer EL. This space can be filled with air or an inert gas. In addition, in this embodiment, a filler such as a silicone polymer, epoxy resin, or acrylic resin can be used to fill the space.

[0103] A coupling member SLM may be disposed between a substrate BS and a cover substrate CBL. The coupling member SLM can couple the substrate BS and the cover substrate CBL. The coupling member SLM may include organic materials such as photocurable resins or photoplastic resins, or may include inorganic materials such as weld sealants; however, this disclosure should not be limited to the specific examples.

[0104] Figure 5 This is a plan view of the display panel 210 according to an embodiment of the present disclosure.

[0105] Reference Figure 5 The effective area AA of the display panel 210 can correspond to the reference. Figure 2 The effective area AA of the described display module 200. In the following text, the effective area AA may refer to the effective area AA of the display panel 210 or the effective area AA of the display module 200, depending on the context.

[0106] Multiple pixels PX can be set within an effective area AA extending along a first direction DR1 and a second direction DR2. Each pixel PX can display one of the primary colors or one of the mixed colors. Primary colors can include red, green, and blue. Mixed colors can include various colors, such as white, yellow, cyan, magenta, etc. However, the colors displayed by the pixel PX should not be limited to or not limited by these limitations.

[0107] The effective area AA may include the first display area DA and the second display area DA2.

[0108] Electronic Module 500 (Reference) Figure 2 The first display area DA1 can be arranged below the second display area DA2. The first display area DA1 can have a first transmittance, and the second display area DA2 can have a second transmittance. The second transmittance can be higher than the first transmittance. Therefore, the electronic module 500 (refer to) can be easily connected through the second display area DA2. Figure 2 It transmits signals and / or receives signals from the electronic module 500. Some components or portions of the second display area DA2 may be omitted to improve transmittance. For example, some pixels among the pixels PX set in the second display area DA2 may be omitted.

[0109] When viewed in a flat surface, the second display area DA2 can be... Figure 2 The sensing areas SSA shown overlap. The second display area DA2 may have a larger size than the sensing areas SSA.

[0110] The first display area DA1 and the second display area DA2 may be adjacent to each other in the second direction DR2. The boundary between the first display area DA1 and the second display area DA2 may extend in the first direction DR1. When viewed in a plane, the first display area DA1 may correspond to the upper portion of the display panel 210.

[0111] Figure 6 This is a plan view of the display panel 210 according to an embodiment of the present disclosure.

[0112] exist Figure 6 In the figures, the same reference numerals indicate Figure 5 The same elements in the text will be omitted, and detailed descriptions of the same elements will be omitted.

[0113] Reference Figure 6 The effective area AAa may include a first display area DA1a and a second display area DA2a. In this embodiment, the second display area DA2a may correspond to... Figure 2 The sensing area SSA is shown in the figure. Figure 6 A second display area DA2a is shown. However, in cases where multiple sensing areas SSA are provided corresponding to different areas in the effective area AAa, multiple second display areas DA2a can be provided to correspond to multiple sensing areas SSA. The second display area DA2a may be surrounded by a first display area DA1a.

[0114] Figure 7 This is an enlarged plan view of a portion of a display panel according to an embodiment of the present disclosure. As an exemplary embodiment, Figure 7 A portion of the first display area DA1 of a display panel 210 according to an embodiment of the present disclosure is shown.

[0115] Reference Figure 7 The first display area DA1 may include multiple first light-emitting areas EA1. Each of the first light-emitting areas EA1 may include multiple sub-light-emitting areas SA1, SA2, SA3 and SA4. Figure 7 Four sub-light-emitting regions are shown, such as the first sub-light-emitting region SA1, the second sub-light-emitting region SA2, the third sub-light-emitting region SA3, and the fourth sub-light-emitting region SA4, as examples of sub-light-emitting regions for each of the first light-emitting regions EA1. However, the number of sub-light-emitting regions can be less than or greater than four. Pixels PX can be arranged in multiple first light-emitting regions EA1 respectively.

[0116] The first light-emitting region EA1 can be set on the first direction DR1 and the second direction DR2. Each of the first light-emitting regions EA1 can correspond to a unit of the light-emitting region including the sub-light-emitting regions SA1 to SA4.

[0117] Each of the sub-emitting regions SA1 to SA4 may include at least one of a first color emitting region, a second color emitting region, and a third color emitting region. In one embodiment, the first color emitting region may correspond to a region emitting red light, the second color emitting region may correspond to a region emitting green light, and the third color emitting region may correspond to a region emitting blue light. In one embodiment, each of the first emitting regions EA1 may include at least one first color emitting region, two second color emitting regions, and one third color emitting region. For example, at least two of the first sub-emitting regions SA1 to the fourth sub-emitting regions SA4 may include one first color emitting region and one second color emitting region, and the other two of the first sub-emitting regions SA1 to the fourth sub-emitting regions SA4 may include one second color emitting region and one third color emitting region. The first sub-emitting regions SA1 to the fourth sub-emitting regions SA4 may be defined in various ways and configurations within each of the first emitting regions EA1.

[0118] Figure 8A and Figure 8B This is an enlarged plan view of a portion of a display panel according to some embodiments of the present disclosure.

[0119] Figure 8A A portion of the second display area DA2 of the display panel 210 according to an embodiment of the present disclosure is shown, and Figure 8B A portion of the second display area DA2-1 of a display panel 210 according to another embodiment of the present disclosure is shown.

[0120] Reference Figure 8A and Figure 8B Each of the second display areas DA2 and DA2-1 may include multiple second light-emitting areas EA2 and signal transmission areas STA.

[0121] In some embodiments, pixel PX may be arranged in a second light-emitting region EA2. Each of the second light-emitting regions EA2 may include a plurality of sub-light-emitting regions SA1, SA2, SA3, and SA4. Each of the first sub-light-emitting region SA1, the second sub-light-emitting region SA2, the third sub-light-emitting region SA3, and the fourth sub-light-emitting region SA4 may include at least one of a first color light-emitting region, a second color light-emitting region, and a third color light-emitting region. In some embodiments, each of the first sub-light-emitting region SA1, the second sub-light-emitting region SA2, the third sub-light-emitting region SA3, and the fourth sub-light-emitting region SA4 of the second light-emitting region EA2 may include a region having a color similar to... Figure 7The first luminous region EA1, its first sub-luminous region SA1, second sub-luminous region SA2, third sub-luminous region SA3, and fourth sub-luminous region SA4, shown in the diagram are color-emitting regions of different colors. Furthermore, the number of first to third color luminous regions included in each of the first, second, third, and fourth sub-luminous regions SA1 and SA2, third, and fourth sub-luminous regions SA3 of the second luminous region EA2 can be [related to the previous sentence]. Figure 7 The number of first to third color light-emitting regions included in each of the first sub-light-emitting region SA1, the second sub-light-emitting region SA2, the third sub-light-emitting region SA3, and the fourth sub-light-emitting region SA4 of the first light-emitting region EA1 shown is different.

[0122] The signal transmission region STA can be arranged adjacent to a corresponding one of the second light-emitting regions EA2. The signal transmission region STA can have a higher transmittance than the second light-emitting region EA2. The second display region DA2 can have a transmittance corresponding to the average of the transmittance of the second light-emitting region EA2 and the transmittance of the signal transmission region STA. In some embodiments, the pixel PX may not be arranged in the signal transmission region STA.

[0123] Reference Figure 8A Multiple signal transmission areas STA can be provided. The signal transmission areas STA can be alternately arranged with the second light-emitting areas EA2. The number of signal transmission areas STA in the second display area DA2 can be equal to the number of second light-emitting areas EA2 in the second display area DA2. The size of the signal transmission area STA in the second display area DA2 can be substantially the same as the size of the second light-emitting area EA2 adjacent to that signal transmission area STA in the second display area DA2.

[0124] Reference Figure 8B Multiple signal transmission areas STA can be provided. The number of signal transmission areas STA in the second display area DA2-1 can be greater than the number of second light-emitting areas EA2. The signal transmission areas STA can surround each of the second light-emitting areas EA2. For example, three signal transmission areas STA can be defined to correspond to a second light-emitting area EA2 adjacent to these three signal transmission areas STA.

[0125] Figure 9 This is a cross-sectional view of the display panel 210 according to an embodiment of the present disclosure. Figure 9 It shows along Figure 8A The cross-sectional view obtained from line I-I'. Figure 10 yes Figure 8A A magnified view of region XX'.

[0126] Reference Figure 9The diagram illustrates the second light-emitting region EA2 and the signal transmission region STA included in the second display area DA2 of the display panel 210. The display panel 210 may include a substrate BS, a circuit element layer ML, a light-shielding pattern BLL, and a light-emitting element layer EL.

[0127] The substrate BS can be a flexible substrate. The substrate BS can include polyimide (PI). In one embodiment, the substrate BS can include one or more polyimide layers and an inorganic layer. For example, the substrate BS can include a first polyimide layer, an inorganic layer disposed on the first polyimide layer, and a second polyimide layer disposed on the inorganic layer.

[0128] The circuit element layer ML may include a first insulating layer 10. The first insulating layer 10 may be disposed on a light-shielding pattern BLL. The first insulating layer 10 may include a barrier layer and / or a buffer layer. According to one embodiment, the barrier layer may be disposed on the light-shielding pattern BLL, and the buffer layer may be disposed on the barrier layer. According to another embodiment, the buffer layer may be disposed on the light-shielding pattern BLL, and the barrier layer may be disposed on the buffer layer. The barrier layer may include an inorganic material. The barrier layer can prevent oxygen or moisture introduced through the substrate BS from entering the pixel PX. The buffer layer may include an inorganic material. The buffer layer may have a surface energy lower than that of the substrate BS, allowing the pixel PX to be stably formed on the substrate BS.

[0129] A semiconductor pattern ACP can be disposed on a first insulating layer 10. The semiconductor pattern ACP can form a transistor. The semiconductor pattern ACP may include polycrystalline silicon, amorphous silicon, or metal-oxide-semiconductor. The semiconductor pattern ACP may include a source S1, a drain D1, and an active region A1. A second insulating layer 20 can be disposed on the first insulating layer 10 and may cover the semiconductor pattern ACP. A gate G1 can be disposed on the second insulating layer 20. A third insulating layer 30 can be disposed on the second insulating layer 20 and may cover the gate G1. An upper electrode UE can be disposed on the third insulating layer 30. A fourth insulating layer 40 can be disposed on the third insulating layer 30 and may cover the upper electrode UE. A fifth insulating layer 50 can be disposed on the fourth insulating layer 40. The fifth insulating layer 50 may include organic materials and / or inorganic materials, and may have a single-layer or multi-layer structure. The first insulating layer 10 to the fifth insulating layer 50 may be referred to as circuit element layers ML. The circuit element layers ML may be connected to... Figure 7 The first display area DA1 shown overlaps with, and can be with Figure 8A and Figure 8B The second display area DA2 or DA2-1 shown overlaps with the second light-emitting area EA2. In this embodiment, the circuit element layer ML may not be arranged in the signal transmission area STA. Figure 9The structure of the circuit element layer ML shown is merely exemplary and may be provided in various ways and configurations without departing from the scope of this disclosure.

[0130] Including the first luminescent region EA1 (refer to) Figure 7 ) and the second luminescent region EA2 (refer to Figure 8A and Figure 8B The light-emitting area of ​​a pixel PX may include a light-emitting portion and a wiring portion for which wiring is provided. In this case, the light-emitting portion may correspond to the portion of the pixel PX that emits light, and the wiring portion may correspond to the portion other than the light-emitting portion. The first light-emitting area EA1 and the second light-emitting area EA2 may correspond to the regions in the first display area DA1 and the second display area DA2 that are different from the signal transmission area STA.

[0131] The light-emitting element layer EL may include a first electrode E1, a light-emitting layer 60, and a second electrode E2.

[0132] The first electrode E1 may correspond to the pixel electrode. The first electrode E1 may be disposed on the fifth insulating layer 50. The first electrode E1 may be connected to the transistor via a contact hole (not shown) penetrating the fifth insulating layer 50. The light-emitting layer 60 may be disposed on the first electrode E1. The second electrode E2 may be disposed on the light-emitting layer 60. The second electrode E2 may correspond to the common electrode. The second electrode E2 of the light-emitting element layer EL may be referred to as the cathode. The light-emitting layer 60 may include an organic material. The light-emitting layer 60 may include an electron control layer (not shown) and a hole control layer (not shown).

[0133] The first electrode E1 can be connected to the first light-emitting region EA1 (refer to...). Figure 7 ) and the second luminescent region EA2 (refer to Figure 8A and Figure 8B The light-emitting layer 60 may overlap with the second light-emitting region EA2 and the signal transmission region STA. The second electrode E2 may overlap with the first light-emitting region EA1 and the second light-emitting region EA2. The pixel-defining layer PDL may be disposed on the first electrode E1. The pixel-defining layer PDL may correspond to the light-emitting portion (not shown). The second electrode E2 may include a metallic material. The second electrode E2 may have a thickness TH2 in the range of approximately 5 nm to approximately 20 nm.

[0134] A light-shielding pattern BLL can be disposed on a substrate BS. The light-shielding pattern BLL may include a metallic material. The light-shielding pattern BLL may include molybdenum (Mo), titanium (Ti), aluminum (Al), silver (Ag), or copper (Cu), etc. The light-shielding pattern BLL may have a thickness TH1 greater than the thickness TH2 of the second electrode E2. The thickness TH1 of the light-shielding pattern BLL may be in the range of approximately 100 nm to approximately 500 nm. The thickness TH1 of the light-shielding pattern BLL may be sufficiently thick to absorb infrared laser light incident on the light-shielding pattern BLL. According to another embodiment, although not shown in the figures, the light-shielding pattern BLL may be disposed under the substrate BS. In this case, the light-shielding pattern BLL may be patterned to overlap with the second light-emitting region EA2 under the substrate BS, and the light-shielding pattern BLL may absorb (or reflect) infrared laser light incident on the substrate BS from the underside of the substrate BS.

[0135] The light-shielding pattern BLL can be combined with the first light-emitting area EA1 (see reference). Figure 7 ) and the second luminescent region EA2 (refer to Figure 8A and Figure 8B (Overlap. See reference) Figure 9 The light-shielding pattern BLL may have a first opening OP1 corresponding to the signal transmission region STA. The first opening OP1 may be defined by the inner surface LP of the light-shielding pattern BLL.

[0136] According to one embodiment, such as Figure 9 As shown, the inner surface LP of the light-shielding pattern BLL can be defined as a plane continuous from the inner surface of the circuit element layer ML. According to another embodiment, the light-shielding pattern BLL can be patterned separately from the circuit element layer ML. In this case, the inner surface LP of the light-shielding pattern BLL may be misaligned with the inner surface of the circuit element layer ML. According to another embodiment, the inner surface of the light-shielding pattern BLL can be defined as a plane discontinuous from the inner surface of the circuit element layer ML. For example, the inner surface LP of the light-shielding pattern BLL may protrude more than the inner surface of the circuit element layer ML in the first direction DR1. In another example, the inner surface LP of the light-shielding pattern BLL may be more recessed than the inner surface of the circuit element layer ML in the first direction DR1.

[0137] The second electrode E2 may have a second opening OP2 corresponding to the signal transmission region STA. The second opening OP2 may be substantially aligned with the first opening OP1 when viewed in cross-section. For example, the inner surface IP of the second electrode E2 may be substantially aligned with the inner surface LP of the light-shielding pattern BLL. In another example, the inner surface IP of the second electrode E2 may protrude or recess more than the inner surface LP of the light-shielding pattern BLL in the first direction DR1.

[0138] Reference Figure 9 and Figure 10 The second opening OP2 may include multiple uneven portions CV. The inner surface IP of the second electrode E2 may correspond to the second opening OP2. The inner surface IP of the second electrode E2 may have multiple uneven portions CV. (Refer to...) Figure 10 The second electrode E2 can be arranged in the second light-emitting region EA2. The uneven portion CV on the inner surface IP of the second electrode E2 can contact the signal transmission region STA. The second opening OP2 can have a larger size than the first opening OP1 when viewed in a plane. The second opening OP2 can be larger than the first opening OP1 depending on the amount of laser beam incident on the second electrode E2.

[0139] In one embodiment, the upper surface TP of the second electrode E2 may be flat, and the inner surface IP of the second electrode E2 extending from the upper surface TP toward the signal transmission region STA may include a concave-convex portion CV when viewed in cross-section. For example, the inner surface IP may have a sloping surface extending from the upper surface TP and inclined toward the signal transmission region STA.

[0140] In one embodiment, the inner surface IP of the second electrode E2 may correspond to the outer contour of the second opening OP2 when viewed in a plane. The outer contour of the second opening OP2 may include a curve convex outward from the second opening OP2. Each of the concave and convex portions CV may include a curve recessed toward the second electrode E2. The curve may have a size that varies depending on the spot size of the laser beam incident on the second electrode E2 and overlapping with the signal transmission region STA.

[0141] Figure 11A and Figure 11B This is a cross-sectional view illustrating a method of manufacturing a display panel according to an embodiment of the present disclosure.

[0142] Reference Figure 11A The initial display panel 210P is shown and illuminated by a laser beam LB.

[0143] The initial display panel 210P may include an initial second electrode P-E2. The initial second electrode P-E2 may overlap with the first light-emitting region EA1, the second light-emitting region EA2, and the signal transmission region STA. The initial second electrode P-E2 may include a metallic material and may be transparent. The initial second electrode P-E2 may be disposed on the light-emitting layer 60.

[0144] A laser beam LB can be irradiated from the underside of the initial display panel 210P toward the signal transmission region STA. The laser beam LB can pass through the substrate BS and through the light-emitting layer 60 via the first opening OP1 to irradiate the initial second electrode P-E2. In one embodiment, the circuit element layer ML and the light-emitting element layer EL can have a transmittance of approximately 95% or higher relative to the laser beam LB. The laser beam LB can be an infrared laser (IR laser) beam. In one embodiment, the laser beam LB can be irradiated not only toward the signal transmission region STA, but also some of the second light-emitting regions EA2 adjacent to the signal transmission region STA. The laser beam LB irradiating some of the second light-emitting regions EA2 can be absorbed or reflected by the light-shielding pattern BLL to prevent irradiation of the initial second electrode P-E2 in the second light-emitting regions EA2. Some portions of the initial second electrode P-E2 that overlap with the signal transmission region STA can be removed by the laser beam LB, and the second opening OP2 can be formed.

[0145] According to this embodiment, the display panel 210 may include a light-shielding pattern BLL, and the irradiation area of ​​the laser beam LB illuminating the signal transmission area STA may extend to some areas of the second light-emitting area EA2 adjacent to the signal transmission area STA. In this case, the irradiation area of ​​the laser beam LB illuminating the initial second electrode P-E2 may be extended. Therefore, the phenomenon of the second electrode E2 overlapping with a portion of the signal transmission area STA due to alignment tolerance can be prevented during the patterning process of the second electrode E2. The light-shielding pattern BLL can prevent the laser beam LB from illuminating the circuit element layer ML and the light-emitting element layer EL arranged in some areas of the second light-emitting area EA2.

[0146] Reference Figure 11B This can be achieved by removing [the signal transmission area STA]. Figure 11A The second electrode E2 is formed as a part of the initial second electrode P-E2 shown. The second electrode E2 may have a second opening OP2 corresponding to the signal transmission region STA. The second opening OP2 may correspond to the first opening OP1 formed through the light-shielding pattern BLL.

[0147] Figure 12 This is a cross-sectional view of a display panel according to another embodiment of the present disclosure. Figure 13A and Figure 13B This is a cross-sectional view of a display panel according to other embodiments of the present disclosure.

[0148] Reference Figure 12The circuit element layer ML can overlap with the signal transmission area STA. That is, the circuit element layer EL can overlap with the light-emitting element layer EL and can be completely arranged in the first display area DA1 and the second display area DA2. The circuit element layer ML may include an organic layer and / or an inorganic layer having a transmittance of approximately 95% or higher relative to infrared laser light. The first insulating layer 10 to the fifth insulating layer 50 may include a light-transmitting organic layer or an inorganic layer.

[0149] Reference Figure 13A The light-shielding pattern BLL can be disposed between the first inorganic layer 10-1 and the second inorganic layer 10-2. The first inorganic layer 10-1 can be disposed on the substrate BS. The first inorganic layer 10-1 may include a barrier layer formed of inorganic material. The second inorganic layer 10-2 can be disposed on the light-shielding pattern BLL. The second inorganic layer 10-2 may include a buffer layer formed of inorganic material. The first inorganic layer 10-1 can be disposed below the light-shielding pattern BLL, and the second inorganic layer 10-2 can be disposed on the light-shielding pattern BLL.

[0150] Reference Figure 13B A first inorganic layer 10-1 and a second inorganic layer 10-2 can be disposed on a substrate BS. The first inorganic layer 10-1 can be disposed on the substrate BS, and the second inorganic layer 10-2 can be disposed on the first inorganic layer 10-1. Each of the first inorganic layer 10-1 and the second inorganic layer 10-2 can correspond to a barrier layer or a buffer layer. A light-shielding pattern BLL can be disposed on the second inorganic layer 10-2. For example, the light-shielding pattern BLL can be disposed on a barrier layer or a buffer layer. In this embodiment, the substrate BS may include a polyimide layer and inorganic layers. The first inorganic layer 10-1 and the second inorganic layer 10-2 can be disposed on the substrate BS.

[0151] While some exemplary embodiments of this disclosure have been described, it should be understood that this disclosure should not be limited to these exemplary embodiments, and various changes and modifications can be made by those skilled in the art within the spirit and scope of this disclosure as claimed below. Therefore, the subject matter disclosed should not be limited to any particular embodiment described herein, and the scope of the inventive concept should be determined based on the full scope of this disclosure as expressed by the appended claims.

Claims

1. A display panel, comprising: The first display area includes multiple first light-emitting areas; A second display area is adjacent to the first display area and includes a plurality of second light-emitting areas and a signal transmission area adjacent to the plurality of second light-emitting areas, wherein the plurality of second light-emitting areas in the second display area have a first transmittance, and the signal transmission area in the second display area has a second transmittance that is higher than the first transmittance of the plurality of second light-emitting areas; Substrate; A circuit element layer is disposed on the substrate. A light-shielding pattern is arranged between the substrate and the circuit element layer, overlapping with the plurality of first light-emitting areas and the plurality of second light-emitting areas, and has a first opening corresponding to the signal transmission area; as well as A light-emitting element layer is disposed on the circuit element layer and includes: The first electrode overlaps with the plurality of first light-emitting regions and the plurality of second light-emitting regions; A light-emitting layer is disposed on the first electrode; and The second electrode overlaps with the plurality of first light-emitting regions and the plurality of second light-emitting regions. The second electrode has a second opening corresponding to the signal transmission area, and the inner surface of the second electrode facing the second opening includes a plurality of uneven portions.

2. The display panel according to claim 1, wherein, The inner surface of the second electrode faces the outer contour of the second opening when viewed in a plan view, and the outer contour includes a curve that bulges outward from the second opening.

3. The display panel according to claim 1, wherein, The first opening and the second opening are aligned with each other in the cross section.

4. The display panel according to claim 1, further comprising a first inorganic layer disposed between the substrate and the circuit element layer, wherein the light-shielding pattern is disposed on or below the first inorganic layer.

5. The display panel according to claim 4, further comprising a second inorganic layer disposed between the substrate and the first inorganic layer, wherein the light-shielding pattern is disposed between the first inorganic layer and the second inorganic layer.

6. The display panel according to claim 1, wherein, The signal transmission region is provided in multiple ways, and the multiple second light-emitting regions are alternately arranged with the multiple signal transmission regions.

7. The display panel according to claim 1, wherein, Each of the plurality of first light-emitting regions and the plurality of second light-emitting regions includes a plurality of sub-light-emitting regions, and each of the sub-light-emitting regions includes at least one of a first color light-emitting region, a second color light-emitting region, and a third color light-emitting region.

8. The display panel according to claim 1, wherein, The second light-emitting region in the plurality of second light-emitting regions has the same size as the signal transmission region adjacent to the second light-emitting region.

9. The display panel according to claim 1, wherein, The light-shielding pattern includes a metal layer, and the metal layer absorbs or reflects infrared laser light incident on the metal layer.

10. The display panel according to claim 1, wherein, The second emitting region transmits 95% or more of the infrared laser.

11. The display panel according to claim 1, wherein, The light-shielding pattern has a first thickness that is greater than the second thickness of the second electrode.

12. The display panel according to claim 11, wherein, The first thickness of the light-shielding pattern is in a first range of 100 nm to 500 nm, and the second thickness of the second electrode is in a second range of 5 nm to 20 nm.

13. A method for manufacturing a display panel, comprising: An initial display panel is provided, the initial display panel including a first display area and a second display area, the first display area including a plurality of first light-emitting areas, the second display area adjacent to the first display area including a plurality of second light-emitting areas and a signal transmission area adjacent to the plurality of second light-emitting areas, wherein the plurality of second light-emitting areas in the second display area have a first transmittance, and the signal transmission area in the second display area has a second transmittance that is higher than the first transmittance of the plurality of second light-emitting areas; as well as A laser beam is irradiated from the lower side of the initial display panel toward the signal transmission area, the initial display panel comprising: Substrate; A circuit element layer is disposed on the substrate. A light-shielding pattern is disposed between the substrate and the circuit element layer, overlapping the plurality of first light-emitting regions and the plurality of second light-emitting regions, and has a first opening corresponding to the signal transmission region; and A light-emitting element layer is disposed on the circuit element layer and includes: The first electrode overlaps with the plurality of first light-emitting regions and the plurality of second light-emitting regions; A light-emitting layer is disposed on the first electrode; and The initial second electrode overlaps with the plurality of first light-emitting regions, the plurality of second light-emitting regions, and the signal transmission region. The second electrode of the light-emitting element layer has a second opening corresponding to the signal transmission area, and the inner surface of the second electrode facing the second opening includes a plurality of uneven portions.

14. The method according to claim 13, wherein, The substrate, the circuit element layer, and the light-emitting layer transmit 95% or more of the laser beam.

15. The method according to claim 13, wherein, The irradiation laser beam includes irradiating the initial second electrode with infrared laser light.

16. The method according to claim 13, wherein, The irradiation laser beam includes irradiating the portion of the plurality of second luminescent regions adjacent to the signal transmission region with the laser beam.

17. The method according to claim 13, wherein, The light-shielding pattern includes a metal layer that absorbs or reflects the laser beam.

18. The method according to claim 13, wherein, The irradiation laser beam includes removing the portion of the initial second electrode corresponding to the signal transmission region.

19. A display device, comprising: The display panel includes a first display area and a second display area adjacent to the first display area and including a light-emitting area and a signal-transmitting area, wherein the first display area has a first transmittance, and the second display area has a second transmittance that is higher than the first transmittance, wherein the light-emitting area has a third transmittance, and the signal-transmitting area has a fourth transmittance that is higher than the third transmittance of the light-emitting area. as well as An electronic module is disposed below the display panel and overlaps with the second display area, the display panel comprising: Substrate; A circuit element layer is disposed on the substrate. A light-shielding pattern is disposed between the substrate and the circuit element layer, overlapping the first display area and the light-emitting area, and has a first opening corresponding to the signal transmission area; and A light-emitting element layer is disposed on the circuit element layer and includes: The first electrode overlaps with the first display area and the light-emitting area; A light-emitting layer is disposed on the first electrode; and The second electrode overlaps with the first display area and the light-emitting area. The second electrode has a second opening corresponding to the signal transmission area, and the inner surface of the second electrode facing the second opening includes a plurality of uneven portions.

20. The display device according to claim 19, wherein, The electronic modules are provided in multiple forms, and the multiple electronic modules include cameras and sensors.

21. The display device according to claim 19, wherein, The second transmittance corresponds to the average of the third transmittance of the light-emitting region and the fourth transmittance of the signal-transmitting region.

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