Display device and electronic device including the same
By optimizing the arrangement of data lines and common voltage lines in the second display area of the display device, the integration of sensor functions is simplified, the problem of high wiring complexity is solved, and the overall efficiency and display quality of the display device are improved.
Patent Information
- Application Number
- CN202511048345.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-08-01
- Filing Date
- 2025-07-29
- Publication Date
- 2026-02-03
AI Technical Summary
Existing display devices, when integrating sensor functions, suffer from high wiring complexity, which affects display quality and efficiency.
The sensor area is introduced into the second display area of the display device, and the wiring structure is optimized through a specific arrangement of data lines and common voltage lines to facilitate the integration of sensor functions, while maintaining the high resolution and image display effect of the display area.
The integration of sensor functions simplifies the wiring structure and improves the overall efficiency and display quality of the display device.
Smart Images

Figure CN121463679A_ABST
Abstract
Description
[0001] This application claims priority and benefit to Korean Patent Application No. 10-2024-0102709, filed on August 1, 2024, with the Korean Intellectual Property Office, the entire disclosure of which is incorporated herein by reference. Technical Field
[0002] Some aspects of the embodiments relate to a display device. Background Technology
[0003] Display devices visually display data. Display devices can use light-emitting diodes (LEDs) to provide images. Display devices are becoming increasingly diverse in their applications, and various designs have been attempted to improve the quality of display devices.
[0004] The information disclosed in this background section is only intended to enhance the understanding of the background of the invention, and therefore may include undisclosed information. Summary of the Invention
[0005] Some aspects of the embodiments relate to a display device.
[0006] Other aspects will be set forth in part in the description which follows, and in part will be apparent from the description, or may be learned by practice of the disclosed embodiments.
[0007] According to some embodiments of this disclosure, a display device is provided, comprising: a substrate including a first display area and a second display area, the second display area including a sensor area; a first data line disposed in the second display area and extending in a first direction; a second data line disposed in the second display area, extending in the first direction, and disposed separately from the first data line in a second direction intersecting the first direction; and a third data line disposed between the first data line and the second data line, and including a first portion protruding from the first data line in the second direction and a second portion connected to the first portion and extending in the first direction, wherein the area between the first data line and the second data line includes a wiring area and a sensor area, and wherein the third data line is disposed in the wiring area.
[0008] In some embodiments, the sensor region is superimposed on an opening in the pixel defining layer and an opening in the light blocking layer.
[0009] In some embodiments, the display device further includes: a fourth data line disposed between the first data line and the second data line, and including a third portion protruding from the second data line in a second direction and a fourth portion connected to the third portion and extending in the first direction.
[0010] In some embodiments, the fourth data line is arranged in the wiring area.
[0011] In some embodiments, the distance by which the first data line and the second data line are separated in a second direction at a location adjacent to the sensor region is longer than the distance by which the first data line and the second data line are separated in a second direction at a location adjacent to the wiring region.
[0012] In some embodiments, the third and fourth data lines are not located in the sensor area.
[0013] In some embodiments, the component is located on the lower part of the substrate in the sensor region.
[0014] In some embodiments, the component is a light sensor.
[0015] In some embodiments, the component is an infrared sensor.
[0016] According to some embodiments of this disclosure, a display device is provided, comprising: a substrate including a first display area and a second display area, the second display area including a sensor area; a first data line disposed in the second display area and extending in a first direction; a second data line disposed in the second display area, extending in the first direction, and disposed separately from the first data line in a second direction intersecting the first direction; and a common voltage line disposed between the first data line and the second data line, wherein the area between the first data line and the second data line includes a wiring area and a sensor area, and wherein the common voltage line is disposed in the wiring area.
[0017] In some embodiments, the common voltage line includes a first common voltage line and a second common voltage line extending in a first direction and spaced apart in a second direction, and a third common voltage line and a fourth common voltage line extending in the second direction and spaced apart in the first direction.
[0018] In some embodiments, the first common voltage line, the second common voltage line, the third common voltage line, and the fourth common voltage line are connected to each other.
[0019] In some embodiments, the first common voltage line, the second common voltage line, the third common voltage line, and the fourth common voltage line all have a rectangular shape.
[0020] In some embodiments, the common voltage line is electrically connected via a contact hole to the counter electrode of an organic light-emitting diode on the common voltage line to which the common voltage is applied.
[0021] According to some embodiments of this disclosure, a display device is provided, comprising: a substrate including a first display area and a second display area, the second display area including a sensor area; a first driving voltage line disposed in the second display area and extending in a first direction; a second driving voltage line disposed separately from the first driving voltage line in a second direction intersecting the first direction and extending in the first direction; a first data line disposed between the first driving voltage line and the second driving voltage line and extending in the first direction; a second data line disposed between the first data line and the second driving voltage line and extending in the first direction; and a third driving voltage line including a fifth portion protruding from the first driving voltage line in the second direction and a sixth portion connected to the fifth portion and extending in the first direction, wherein the area between the first data line and the second data line includes a general area and a sensor area, and wherein the distance by which the first data line and the second data line are separated in the second direction at a position adjacent to the sensor area is longer than the distance by which the first data line and the second data line are separated in the second direction at a position adjacent to the general area.
[0022] In some embodiments, the third drive voltage line is arranged separately from the sensor area.
[0023] In some embodiments, the display device further includes: a fourth driving voltage line, including a seventh portion protruding from the second driving voltage line in a second direction and an eighth portion connected to the seventh portion and extending in a first direction.
[0024] In some embodiments, the fourth drive voltage line is arranged separately from the sensor area.
[0025] In some embodiments, the third and fourth driving voltage lines are not arranged in the sensor area.
[0026] In some embodiments, the component is located on the lower part of the substrate in the sensor region.
[0027] According to some embodiments of the present disclosure, an electronic device is provided, comprising: a processor configured to provide input image data; and a display device configured to display an image based on the input image data. The display device includes: a substrate including a first display area and a second display area, the second display area including a sensor area; a first data line disposed in the second display area and extending in a first direction; a second data line disposed in the second display area, extending in the first direction, and disposed separately from the first data line in a second direction intersecting the first direction; and a third data line disposed between the first data line and the second data line, and including a first portion protruding from the first data line in the second direction and a second portion connected to the first portion and extending in the first direction, wherein the area between the first data line and the second data line includes a wiring area and a sensor area, and wherein the third data line is disposed in the wiring area. Attached Figure Description
[0028] The above and other aspects, features, and advantages of certain embodiments disclosed will become more apparent from the following description taken in conjunction with the accompanying drawings, in which: Figure 1 and Figure 2 This is a schematic plan view of a display device according to some embodiments of the present disclosure; Figure 3A and Figure 3B This is a schematic cross-sectional view of a display device according to some embodiments of the present disclosure; Figure 4 This is a schematic equivalent circuit diagram of a pixel circuit disposed in a display device according to some embodiments of the present disclosure; Figure 5 This is a schematic plan view of a portion of a display area in a display device according to some other embodiments of the present disclosure; Figure 6 It is according to some embodiments of this disclosure along Figure 5 A cross-sectional view of the display device taken along line I-I'; Figure 7 It is according to some embodiments of this disclosure along Figure 5 A sectional view of the display device taken along line II-II'; and Figures 8 to 10 This is a schematic plan view of the second display area according to some embodiments of the present disclosure. Detailed Implementation
[0029] Because the disclosure allows for various suitable modifications and numerous embodiments, specific embodiments will be shown in the accompanying drawings and described in detail in the written description. A full understanding of the disclosure, its advantages, and the objectives achieved through the disclosed implementations will be obtained by referring to the accompanying drawings, which illustrate some embodiments of the disclosure. However, the disclosure may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein.
[0030] The invention will be described in detail below by referring to the accompanying drawings, which explain some embodiments of the invention. In the drawings, the same reference numerals denote the same elements, and therefore their description need not be repeated.
[0031] It will be understood that although the terms “first,” “second,” “third,” etc., may be used herein to describe various elements, components, regions, layers, and / or portions, these elements, components, regions, layers, and / or portions should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, or portion from another element, component, region, layer, or portion. Therefore, without departing from the spirit and scope of the inventive concept, the first element, component, region, layer, or portion discussed below may be referred to as the second element, component, region, layer, or portion.
[0032] For ease of description, spatial relative terms such as “below,” “under,” “below,” “below,” “above,” “above,” etc., may be used herein to describe the relationship of one element or feature to another (or other) element or feature as shown in the accompanying drawings. It will be understood that, in addition to the orientations depicted in the drawings, the spatial relative terms are intended to cover different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as “below” or “below” or “below” other elements or features will subsequently be oriented “above” said other elements or features. Thus, the example terms “below” and “below” can cover both above and below orientations. The device may be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used herein should be interpreted accordingly. Furthermore, it will be understood that when a layer is referred to as “between” two layers, the layer may be the only layer between the two layers, or there may be one or more intervening layers.
[0033] The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the inventive concept. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “an” are also intended to include the plural forms. It will also be understood that when the terms “comprising,” “including,” and “having,” and “comprising,” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof.
[0034] As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. For example, the expression “A and / or B” means A, B, or A and B. Expressions such as “one or more of…” and “at least one of…” modify the entire list of elements when following a list of elements, without modifying any individual elements in the list. For example, the expressions “one or more of A, B, and C,” “at least one of A, B, and C,” and “at least one selected from the group consisting of A, B, and C” indicate only A, only B, only C, both A and B, both A and C, both B and C, or all of A, B, and C.
[0035] Furthermore, when describing embodiments of the inventive concept, the use of "may" refers to "one or more embodiments of the inventive concept." Additionally, the term "exemplary" is intended to indicate or illustrate.
[0036] It will be understood that when an element or layer is referred to as being "on" another element or layer, "connected to", "bonded to" another element or layer, or "adjacent to" another element or layer, the element or layer may be directly on, directly connected to, directly bonded to, or adjacent to the other element or layer, or there may be one or more intermediary elements or layers. When an element or layer is referred to as being "directly on" another element or layer, "directly connected to" another element or layer, "directly bonded to" another element or layer, "in contact with" another element or layer, "in direct contact with" another element or layer, or "immediately adjacent to" another element or layer, there is no intermediary element or layer.
[0037] As used herein, the terms “substantially,” “about,” and similar terms are used as approximate terms rather than terms of degree and are intended to account for inherent variations in measured or calculated values that will be recognized by a person skilled in the art. Furthermore, if the term “substantially” is used in combination with a feature that can be expressed numerically, the term “substantially” indicates a range of + / - 5% of the value centered on that value. Additionally, specific quantities or ranges described in this written description or claims may also cover inherent variations in measured or calculated values that will be recognized by a person skilled in the art.
[0038] As used herein, the term “use” and its variants may be considered synonymous with the term “utilize” and its variants, respectively.
[0039] When one or more embodiments can be implemented differently, a particular process sequence may be performed differently than the described sequence. For example, (i) the operation of the disclosed process is merely an example and may involve various additional operations not explicitly covered, and (ii) the timing order of the operations may vary.
[0040] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the inventive concept pertains. It will also be understood that terms (such as those defined in common dictionaries) shall be interpreted as having the meaning consistent with their meaning in the context of the relevant field and / or this specification, and shall not be interpreted in an idealized or overly formal sense, unless expressly so defined herein.
[0041] 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.
[0042] Figure 1 and Figure 2 This is a schematic plan view of a display device according to some embodiments of the present disclosure.
[0043] The display device, according to some embodiments, may be included in an electronic device such as a smartphone, mobile phone, navigation device, game console, TV, vehicle head unit, laptop computer, tablet computer, personal media player (PMP), or personal digital assistant (PDA)). Furthermore, the electronic device may be a flexible device.
[0044] Display device 1 may include a display area DA and a peripheral area PA outside the display area DA. In a plan view, the display area DA may have the following characteristics: Figure 1The rectangular or roughly rectangular shape shown is illustrated. According to some other embodiments, the display area DA can have a polygonal shape, such as a triangle, pentagon, hexagon, circle, ellipse, irregular shape, etc. The display area DA may have rounded (rounded) corners at its edges. The peripheral area PA can be a type of non-display area where no display elements are placed. The display area DA can be entirely surrounded by the peripheral area PA.
[0045] Including organic light-emitting diodes (OLEDs) (see...) Figure 4 Multiple pixels P of various display elements (see) Figure 5 The pixels (P) can be arranged in the display area DA. Multiple pixels (P) comprise several pixels, which can be arranged along the x and y directions in various suitable forms such as stripe arrangement, pentile arrangement, and mosaic arrangement to achieve (e.g., display) an image.
[0046] The display area DA may include a first display area DA1 and a second display area DA2. At least a portion of the display area DA may be set as the second display area DA2. For example... Figure 1 As shown, only a portion of the display area DA can be set as the second display area DA2. According to some other embodiments, the entire display area DA can be set as the second display area DA2.
[0047] See below for reference. Figure 3A and Figure 3B As described, the second display area DA2 is the area on the display panel where component 40 is arranged at the bottom corresponding to the second display area DA2, and may correspond to the component area. Component 40 may be a camera, light sensor, proximity sensor, iris sensor, etc.
[0048] Figure 1 A second display area DA2 is shown located within the display area DA. According to some other embodiments, such as... Figure 2 As shown, the display device 1 may include two or more second display areas DA2, and the shapes and sizes of the multiple second display areas DA2 may differ from each other. When viewed from a direction approximately perpendicular to the upper surface of the display device 1, the shapes of the second display areas DA2 may have various suitable shapes, such as circles, ellipses, polygons such as squares, stars, or rhombuses. Components 40 with different functions may be placed corresponding to each of the multiple second display areas DA2. According to some embodiments, a camera may be placed in the second-1 display area DA21, a light sensor may be placed in the second-2 display area DA22, and a proximity sensor may be placed in the second-3 display area DA23.
[0049] In some examples, the electronic device includes a processor (e.g., a graphics processing unit (GPU), etc.) configured to provide input image data and a display device configured to display an image based on the input image data. The display device is further described below. The input image data may include red image data, green image data, and blue image data. In some embodiments, the input image data may also include white image data. As another example, the input image data may include magenta image data, yellow image data, and cyan image data.
[0050] Figure 3A and Figure 3B This is a cross-sectional view schematically showing a portion of a display device according to some embodiments of the present disclosure.
[0051] Reference Figure 3A The display device 1 may include a display panel 10 and a component 40 arranged to be stacked with the display panel 10.
[0052] The display panel 10 may include a display area DA, and the display area DA may include a first display area DA1 occupying most of the display area DA and a second display area DA2 having a relatively small area compared to the first display area DA1.
[0053] The display panel 10 may include a substrate 100, a display layer DISL on the substrate 100, a touch screen layer 400, an anti-reflective layer 600, and a lower protective film PB disposed below the substrate 100. A window protecting the display panel 10 may be further placed on the upper part of the display panel 10.
[0054] The substrate 100 may include glass or a polymeric resin. The substrate 100 comprising a polymeric resin may have flexible, foldable, rollable, or bendable properties. The substrate 100 may have a multilayer structure comprising a layer containing the aforementioned polymeric resin and a layer containing an inorganic layer.
[0055] The display layer DISL may include pixel circuitry comprising a thin-film transistor (TFT), a light-emitting element (ED) as a display element, and a thin-film encapsulation layer 300. The light-emitting element ED may be electrically connected to the underlying TFT. In this respect, Figure 3A A buffer layer 111 is shown disposed on a substrate 100, and a thin-film transistor (TFT) and an insulating layer IL are disposed on the buffer layer 111. The TFT and a light-emitting element (ED) electrically connected to the TFT can be arranged in a first display area DA1 and a second display area DA2.
[0056] In the second display area DA2, multiple aperture areas PH can be located where no display elements are arranged and no wiring constituting pixel circuits are arranged. The aperture area PH can be a region through which light / signal emitted from the component 40 arranged corresponding to the second display area DA2 or light / signal incident on the component 40 is transmitted.
[0057] like Figure 3B As shown, a barrier metal layer (BML) may be further disposed in the second display area DA2. The barrier metal layer BML may be placed between the substrate 100 and the buffer layer 111 to prevent or substantially reduce the possibility of light degradation affecting the functionality of the thin-film transistor (TFT) disposed in the second display area DA2. The barrier metal layer BML may also be disposed in the first display area DA1. The barrier metal layer BML disposed in the second display area DA2 may include an opening superimposed on the aperture region PH.
[0058] The thin-film encapsulation layer 300 may include at least one inorganic encapsulation layer and at least one organic encapsulation layer. According to some embodiments, 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 therebetween.
[0059] Touchscreen layer 400 can be formed on thin-film encapsulation layer 300. Touchscreen layer 400 can obtain coordinate information based on external input (e.g., touch events from objects such as fingers or styluses). Touchscreen layer 400 may include touch electrodes and wiring connected to the touch electrodes. Touchscreen layer 400 can use self-capacitance or mutual capacitance to detect external input.
[0060] The antireflective layer 600 can reduce the reflectivity of light (e.g., external light) incident from the outside toward the display device 1. The antireflective layer 600 may include a light-blocking layer 610, a color filter 620, and an outer coating layer 630. The light-blocking layer 610 may include an opening 610OP1 superimposed with the light-emitting element ED of the first display area DA1 and an opening 610OP2 superimposed with the light-emitting element ED of the second display area DA2, and the color filter 620 may be arranged in each of the aforementioned openings 610OP1 and 610OP2. The light-blocking layer 610 may include an opening 610OP3 that is not superimposed with the light-emitting element ED. The opening 610OP3 is the region corresponding to the aperture region PH, and a portion of the outer coating layer 630 may be located in the opening 610OP3. That is, the color filter 620 and the light-blocking layer 610 may not be present in the region of the antireflective layer 600 corresponding to the aperture region PH.
[0061] The color filter 620 can be arranged to consider the color of the light emitted from each pixel of the display panel 10. For example, the color filter 620 can be red, green, or blue depending on the color of the light emitted from the light-emitting element ED. The outer coating 630 can include an organic material such as resin, and the organic material can be transparent.
[0062] Compared to display devices that include polarizing plates, display device 1 that includes an anti-reflective layer 600 comprising a color filter 620 and a light-blocking layer 610 can significantly reduce the thickness of display device 1.
[0063] A window may be placed on the upper part of the display panel 10 (e.g., on the anti-reflective layer 600) to protect the display panel 10. The window may be bonded to the anti-reflective layer 600 via an adhesive layer such as an optically clear adhesive. The window may comprise glass or plastic material. The glass material may include ultrathin glass. The plastic material may include polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, and / or cellulose acetate propionate, etc.
[0064] The lower protective film PB can be attached to the lower surface of the substrate 100 and serves to support and protect the substrate 100. The lower protective film PB can have an opening PB_OP corresponding to the second display area DA2. By providing the opening PB_OP in the lower protective film PB, the light transmittance of the second display area DA2 can be improved (e.g., increased). The lower protective film PB can be configured to include materials such as polyethylene terephthalate (PET) and / or polyimide (PI).
[0065] The area of the second display area DA2 can be larger than the area where the component 40 is placed. Therefore, the area of the opening PB_OP in the lower protective film PB can be mismatched with the area of the second display area DA2.
[0066] Figure 4 An equivalent circuit diagram of a pixel circuit disposed in a display device according to some embodiments of the present disclosure is shown schematically.
[0067] Reference Figure 4 The pixel circuit PC may include a plurality of thin-film transistors and at least one capacitor. According to some embodiments, the pixel circuit PC may include a first thin-film transistor T1, a second thin-film transistor T2, a third thin-film transistor T3, and a storage capacitor (or capacitor) Cst.
[0068] Each of the first thin-film transistor T1, the second thin-film transistor T2, and the third thin-film transistor T3 may be an oxide semiconductor thin-film transistor comprising a semiconductor layer made of oxide semiconductor or a silicon semiconductor thin-film transistor comprising a semiconductor layer made of polycrystalline silicon. Each thin-film transistor may have a first electrode and a second electrode, and depending on the type of thin-film transistor, the first electrode may be one of a source electrode and a drain electrode, and the second electrode may be the other of a source electrode and a drain electrode. Furthermore, each thin-film transistor may have a gate electrode.
[0069] The first thin-film transistor T1 can be a driving thin-film transistor. The first electrode of the first thin-film transistor T1 can be connected to the driving voltage line VDL supplying the driving power voltage (or driving voltage) ELVDD, and the second electrode can be connected to the pixel electrode of the organic light-emitting diode (OLED). The gate electrode of the first thin-film transistor T1 can be connected to the first node N1. The first thin-film transistor T1 can control the amount of current flowing through the organic light-emitting diode (OLED) from the driving power voltage ELVDD in response to the voltage of the first node N1.
[0070] The second thin-film transistor T2 can be a switching thin-film transistor. The first electrode of the second thin-film transistor T2 can be connected to the data line DL, and the second electrode can be connected to the first node N1. The gate electrode of the second thin-film transistor T2 can be connected to the scan line SL. The second thin-film transistor T2 can be turned on (e.g., activated) when a scan signal is supplied to the scan line SL to electrically connect the data line DL and the first node N1.
[0071] The third thin-film transistor T3 can be an initialization thin-film transistor and / or a sensing thin-film transistor. The first electrode of the third thin-film transistor T3 can be connected to the second node N2, and the second electrode can be connected to the initialization voltage line INL. The gate electrode of the third thin-film transistor T3 can be connected to the scan line SL.
[0072] The third thin-film transistor T3 can be turned on when a scan signal is supplied to the scan line SL to electrically connect the initialization voltage line INL and the second node N2. According to some embodiments, the third thin-film transistor T3 can be turned on according to the scan signal received through the scan line SL to initialize the pixel electrodes of the organic light-emitting diode OLED using the initialization voltage from the initialization voltage line INL.
[0073] According to some embodiments, the third thin-film transistor T3 can be turned on when a scan signal is supplied to the scan line SL to sense characteristic information of the organic light-emitting diode (OLED). The third thin-film transistor T3 may have both the function of initializing a thin-film transistor and the function of sensing a thin-film transistor, or only one of these functions. The initialization and sensing operations of the third thin-film transistor T3 can be performed individually or concurrently (e.g., simultaneously). When the third thin-film transistor T3 is used as a sensing thin-film transistor, the initialization voltage line INL can be designated as the sensing line.
[0074] The storage capacitor Cst can be connected between the first node N1 and the second node N2. For example, the first capacitor plate of the storage capacitor Cst can be connected to the gate electrode of the first thin-film transistor T1, and the second capacitor plate of the storage capacitor Cst can be connected to the pixel electrode of the organic light-emitting diode OLED.
[0075] The counter electrode of an organic light-emitting diode (OLED) can be connected to the common voltage line VSL that provides the common power voltage (or common voltage) ELVSS.
[0076] although Figure 4 The illustration shows a pixel circuit PC comprising three thin-film transistors and one storage capacitor, but the invention is not limited thereto. According to some other embodiments, the number of thin-film transistors or the number of storage capacitors can vary depending on the design of the pixel circuit PC.
[0077] Figure 5 This is a plan view schematically illustrating a portion of the display area of a display device according to some embodiments of the present disclosure.
[0078] Reference Figure 5 Pixel P is arranged in the first display area DA1 and the second display area DA2, and pixel P may include a first pixel to a third pixel that emits light of different colors. For ease of explanation, the first pixel is described as a red pixel Pr, the second pixel as a green pixel Pg, and the third pixel as a blue pixel Pb.
[0079] The red pixel Pr, green pixel Pg, and blue pixel Pb can be arranged in the first display area DA1 and the second display area DA2 according to a set or predetermined rule. Figure 6 The area divided by dashed lines in the display area DA is the pixel circuit area where pixel circuits connected to pixel P are arranged.
[0080] In each row N (e.g., the first row 1N to the third row 3N), red pixels Pr, green pixels Pg, and blue pixels Pb can be arranged alternately. In each row N (e.g., the second row 2N), red pixels Pr and blue pixels Pb can be arranged alternately along a first virtual line IL1, and green pixels Pg can be arranged alternately along a second virtual line IL2. This arrangement of pixels can be repeated until the last row. Here, the size (e.g., width or diameter) of blue pixels Pb and red pixels Pr can be larger than the size (e.g., width or diameter) of green pixels Pg.
[0081] The red pixels Pr and blue pixels Pb arranged along the first virtual line IL1, and the green pixels Pg arranged along the second virtual line IL2, can be arranged alternately. Therefore, in the first column 1M, the red pixels Pr and blue pixels Pb are arranged alternately; in the adjacent second column 2M, the green pixels Pg are arranged at a set or predetermined interval; in the adjacent third column 3M, the blue pixels Pb and red pixels Pr are arranged alternately; and in the adjacent fourth column 4M, the green pixels Pg are arranged at a set or predetermined interval. This arrangement of pixels can be repeated until the last column.
[0082] To express this pixel array structure differently, it can be represented as follows: red pixels Pr are arranged at the first and third vertices facing each other in a virtual square VS with the center of green pixels Pg as the center of the square, and blue pixels Pb are arranged at the second and fourth vertices, which are the remaining vertices. Here, the virtual square VS can be transformed into various suitable shapes other than a square (such as rectangles and rhombuses).
[0083] This pixel array structure is called Pentyl ® The structure, and by applying rendering operations that express color through shared adjacent pixels, allows high resolution to be achieved with a small number of pixels.
[0084] In this specification, a pixel P is the smallest unit for realizing an image (e.g., emitting light) and refers to the area capable of emitting light. When an organic light-emitting diode is used as a display element, the light-emitting area of a pixel P can be defined by an opening in the light-emitting layer or the pixel-defining layer.
[0085] Figure 5 The red pixel Pr, green pixel Pg, and blue pixel Pb shown can emit red, green, and blue light respectively using organic light-emitting diodes (OLEDs). Therefore, the arrangement of pixel P can correspond to the arrangement of the organic light-emitting diodes (OLEDs) used as display elements. For example, Figure 5The position of the red pixel Pr shown indicates the position of the organic light-emitting diode (OLED) emitting red light. Similarly, the position of the green pixel Pg indicates the position of the organic light-emitting diode emitting green light, and the position of the blue pixel Pb indicates the position of the organic light-emitting diode emitting blue light.
[0086] The pixel arrangement structure of the first display area DA1 and the second display area DA2 can be the same. The resolution of the first display area DA1 and the second display area DA2 can be the same. The pixel circuit structure in which the organic light-emitting diode of pixel P arranged in the first display area DA1 is connected to it can be the same as the pixel circuit structure in which the organic light-emitting diode of pixel P arranged in the second display area DA2 is connected to it.
[0087] In the second display area DA2, multiple aperture regions PH can be arranged regularly at regular intervals. The aperture regions PH are arranged between a pair of adjacent pixels P (i.e., between organic light-emitting diodes), and may not be superimposed on the organic light-emitting diodes. According to some embodiments, the aperture regions PH may be arranged at the boundary of a pair of adjacent pixel circuit regions. The aperture regions PH may not have pixel circuits or circuit elements and / or wiring constituting pixel circuits placed therein. Therefore, the area (e.g., size) occupied by the pixel circuits arranged in the second display area DA2 can be smaller than the area (e.g., size) occupied by the pixel circuits arranged in the first display area DA1.
[0088] The hole region PH does not mean that an actual hole is formed in the substrate 100 or the insulating layer, but can be defined as an area in which no circuit elements and wiring are arranged and which appears to have a hole-like shape when viewed in a direction perpendicular to the upper surface of the substrate 100 (i.e., in a plan view) due to the arrangement of circuit elements forming pixel circuits on the substrate 100 and wiring (e.g., signal lines) connected to the pixel circuits.
[0089] Each pixel P can be positioned on top of its corresponding pixel circuit. Pixel P can be positioned directly above the pixel circuit for stacking with it, or it can be positioned offset from the pixel circuit and partially stacked with the pixel circuit of another pixel P located in an adjacent row or column. That is, pixel P can be placed within the pixel circuit region, or some pixels can be placed within another pixel circuit region adjacent to the pixel circuit region. Figure 5 An example is shown in which each pixel P is connected to a pixel circuit on the left side of the display device 1.
[0090] exist Figure 5In this design, the aperture region PH is depicted as circular, but the invention is not limited thereto. For example, the shape of the aperture region PH can be elliptical or a polygon such as a triangle or pentagon. The arrangement and size of the aperture region PH can also vary depending on the structure and arrangement of the pixel circuit. Furthermore, in Figure 5 In a single pixel circuit, a hole region PH is arranged between a pair of adjacent pixels P. However, depending on the structure and arrangement of the pixel circuit, multiple hole regions PH can be arranged between a pair of adjacent pixels P.
[0091] Figure 6 It is along Figure 5 A sectional view of the display device taken along line I-I'. Figure 7 It is along Figure 5 A sectional view of the display device taken from line II-II'.
[0092] Figure 6 and Figure 7 An example is shown in which the light-emitting element, serving as a display element in a display panel, includes an organic light-emitting diode (OLED). The OLEDs can be arranged in a first display area DA1 and a second display area DA2, respectively. For ease of explanation, the OLED arranged in the first display area DA1 is referred to as a first organic light-emitting diode (OLED1), and the OLED arranged in the second display area DA2 is referred to as a second organic light-emitting diode (OLED2).
[0093] Reference Figure 6 and Figure 7 The first organic light-emitting diode OLED1 and the second organic light-emitting diode OLED2 can be formed on the substrate 100.
[0094] The substrate 100 may include a first substrate layer 101, a first barrier layer 102, a second substrate layer 103, and a second barrier layer 104. The first substrate layer 101 and the second substrate layer 103 may include a polymer resin, and both the first barrier layer 102 and the second barrier layer 104 may include an inorganic insulating material. The polymer resin may include polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, and / or cellulose acetate propionate, etc.
[0095] A buffer layer 111 may be disposed on the substrate 100. The buffer layer 111 may reduce or block the penetration of foreign matter, moisture or outside air from the lower part of the substrate 100. The buffer layer 111 may include inorganic insulating materials such as silicon oxide, silicon oxynitride and / or silicon nitride, and may be formed as a single-layer structure or a multi-layer structure including the aforementioned materials.
[0096] A barrier metal layer (BML) may be disposed between the substrate 100 and the buffer layer 111, and may be arranged in the first display area DA1 and the second display area DA2. The barrier metal layer BML may include conductive metals (such as aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), nickel (Ni), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and / or copper (Cu), etc.). The barrier metal layer BML may be configured as a part corresponding to the pixel circuit PC. For example, the barrier metal layer BML may be a structure in which at least the area corresponding to the driving transistor is connected, and may have openings corresponding to the remaining circuit elements. According to some other embodiments, the barrier metal layer BML may be disposed only in the second display area DA2, or may not be disposed in either the first display area DA1 or the second display area DA2.
[0097] The first organic light-emitting diode (OLED1) and the second organic light-emitting diode (OLED2) can both be electrically connected to the pixel circuit PC. The first organic light-emitting diode (OLED1) can be electrically connected to the pixel circuit PC between the substrate 100 and the first organic light-emitting diode (OLED1), and the second organic light-emitting diode (OLED2) can be electrically connected to the pixel circuit PC between the substrate 100 and the second organic light-emitting diode (OLED2).
[0098] The pixel circuit PC may include a thin-film transistor (TFT), a storage capacitor Cst, and multiple wirings WL connected to them. The TFT may include a semiconductor layer Act, a gate electrode GE stacked with the channel region of the semiconductor layer Act, and source electrodes SE and drain electrodes DE respectively connected to the source and drain regions of the semiconductor layer Act. A first gate insulating layer 113 may be disposed between the semiconductor layer Act and the gate electrode GE, and a second gate insulating layer 115 and a first interlayer insulating layer 117 may be disposed between the gate electrode GE and the source electrode SE, and between the gate electrode GE and the drain electrode DE. A second interlayer insulating layer 119 may be disposed on the source electrode SE and the drain electrode DE.
[0099] The semiconductor layer Act may include polycrystalline silicon. According to some embodiments, the semiconductor layer Act may include amorphous silicon. According to some embodiments, the semiconductor layer Act may include an oxide semiconductor selected from at least one material selected from the group consisting of indium (In), gallium (Ga), tin (Sn), zirconium (Zr), vanadium (V), hafnium (Hf), cadmium (Cd), germanium (Ge), chromium (Cr), titanium (Ti), and zinc (Zn). The semiconductor layer Act may include a channel region and impurity-doped source and drain regions.
[0100] The storage capacitor Cst can be configured to be stacked with the thin-film transistor TFT. The storage capacitor Cst may include a lower electrode CE1 and an upper electrode CE2 stacked on top of each other. According to some embodiments, the gate electrode GE of the thin-film transistor TFT may include the lower electrode CE1 of the storage capacitor Cst.
[0101] The gate electrode GE or the lower electrode CE1 may include low-resistance conductive materials such as molybdenum (Mo), aluminum (Al), copper (Cu) and / or titanium (Ti), and may have a single-layer structure or a multi-layer structure made of the aforementioned materials.
[0102] The upper electrode CE2 may include aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), nickel (Ni), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and / or copper (Cu), and may be a single-layer or multi-layer structure comprising the above materials. The second gate insulating layer 115 may be placed between the lower electrode CE1 and the upper electrode CE2.
[0103] The source electrode SE and / or drain electrode DE may include aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), nickel (Ni), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and / or copper (Cu), and may be a single-layer or multi-layer structure comprising the above materials. For example, the source electrode SE and / or drain electrode DE may have a three-layer structure of titanium layer / aluminum layer / titanium layer.
[0104] The first gate insulating layer 113, the second gate insulating layer 115, the first interlayer insulating layer 117, and the second interlayer insulating layer 119 may all comprise inorganic insulating materials such as silicon oxide, silicon oxynitride, or silicon nitride, and may have a single-layer structure or a multilayer structure comprising the aforementioned materials.
[0105] A planarization layer (also called a planarization layer) 121 may be disposed on the second interlayer insulating layer 119. The planarization layer 121 may comprise organic materials such as acrylic acid, BCB (benzocyclobutene), polyimide, HMDSO (hexamethyldisiloxane), etc. In some examples, the planarization layer 121 may comprise inorganic materials. The planarization layer 121 serves as a protective film covering the thin-film transistor TFT, and the upper portion of the planarization layer 121 is configured to be planarized. The planarization layer 121 may be a single layer or multiple layers.
[0106] Multiple wiring lines WL can be arranged between the first gate insulating layer 113, the second gate insulating layer 115, the first interlayer insulating layer 117, the second interlayer insulating layer 119, and the planarization layer 121. The multiple wiring lines WL may include data lines, scan lines, emission control lines, etc., connected to the thin-film transistor TFT and the capacitor Cst.
[0107] The connection electrode CML can be disposed on the second interlayer insulating layer 119. The thin-film transistor (TFT) can be electrically connected to the first electrode 210 of the corresponding organic light-emitting diode (OLED) through the connection electrode CML. The connection electrode CML can be connected to the TFT through the contact holes of the second interlayer insulating layer 119, and the first electrode 210 can be connected to the connection electrode CML through the contact holes of the planarization layer 121.
[0108] The first organic light-emitting diode (OLED1) and the second organic light-emitting diode (OLED2) may each include a stacked structure comprising a first electrode 210 as a pixel electrode, a light-emitting layer 222, and a second electrode 230 as a counter electrode. The stacked structure may include a first functional layer 221 between the first electrode 210 and the light-emitting layer 222 and / or a second functional layer 223 between the light-emitting layer 222 and the second electrode 230.
[0109] The first electrode 210 may be disposed on a planarization layer (e.g., planarization layer) 121. The first electrode 210 may include a reflective film comprising silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), or compounds or mixtures thereof. The first electrode 210 may include a reflective film comprising the above-described materials and a transparent conductive film disposed on or / and below the reflective film. The transparent conductive film may include indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In2O3), indium gallium oxide (IGO), and / or aluminum zinc oxide (AZO), etc. As an example, the first electrode 210 may have a three-layer structure of ITO layer / Ag layer / ITO layer.
[0110] The pixel defining layer 123 covers the edge of the first electrode 210 and may include an opening superimposed on the first electrode 210. Figure 6 and Figure 7 An opening (hereinafter referred to as the first opening, 123OP1) superimposed on the first electrode 210 of the first organic light-emitting diode OLED1 and an opening (hereinafter referred to as the second opening, 123OP2) superimposed on the first electrode 210 of the second organic light-emitting diode OLED2 are shown respectively.
[0111] The first opening 123OP1 and the second opening 123OP2 of the pixel defining layer 123 can respectively define the light-emitting areas of the first organic light-emitting diode OLED1 and the second organic light-emitting diode OLED2. For example, the width of the first opening 123OP1 of the pixel defining layer 123 can correspond to the width of the light-emitting area of the first organic light-emitting diode OLED1, and the width of the second opening 123OP2 of the pixel defining layer 123 can correspond to the width of the light-emitting area of the second organic light-emitting diode OLED2.
[0112] The pixel defining layer 123 is a colored, opaque, light-blocking insulating layer and may be, for example, black. For instance, the pixel defining layer 123 may include a polyimide (PI) binder and pigments mixed with red, green, and blue. In some examples, the pixel defining layer 123 may include a cardo-based binder resin and a mixture of lactam-based black and blue pigments. In some examples, the pixel defining layer 123 may include carbon black. The pixel defining layer 123, together with the anti-reflective layer 600 described later, may prevent or substantially reduce the reflection of external light and improve the contrast of the display panel.
[0113] Spacers 125 may be disposed on pixel defining layer 123. Spacers 125 may comprise a different material than pixel defining layer 123. For example, pixel defining layer 123 may comprise a different material (such as a negative photosensitive material), while spacers 125 may comprise a positive photosensitive material, and each spacer 125 may be formed by a separate masking process. Spacers 125 may be transparent insulating layers.
[0114] The light-emitting layer 222 is positioned to correspond to each of the first opening 123OP1 and the second opening 123OP2 of the pixel defining layer 123, and may be stacked with the first electrode 210. The light-emitting layer 222 may comprise a high-molecular-weight organic material or a low-molecular-weight organic material that emits light of a set or predetermined color. The first functional layer 221 and the second functional layer 223 may be formed above and below the light-emitting layer 222, respectively.
[0115] The first functional layer 221 may include a hole transport layer (HTL) and / or a hole injection layer (HIL). The second functional layer 223 may include an electron transport layer (ETL) and / or an electron injection layer (EIL). Unlike the light-emitting layer 222, the first functional layer 221 and / or the second functional layer 223 may be integrally formed on the substrate 100. In other words, the first functional layer 221 and / or the second functional layer 223 may cover the first display area DA1 and the second display area DA2.
[0116] The thin-film encapsulation layer 300 may cover the first organic light-emitting diode OLED1 and the second organic light-emitting diode OLED2. According to some embodiments, 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 between the first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330.
[0117] The first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 may each include one or more inorganic insulating materials. Inorganic insulating materials may include aluminum oxide, titanium oxide, tantalum oxide, hafnium oxide, zinc oxide, silicon oxide, silicon nitride, and / or silicon oxynitride, etc.
[0118] The organic encapsulation layer 320 may include polymeric materials. Polymeric materials may include acrylic resins, epoxy resins, polyimides, and / or polyethylene, etc. 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 applying polymers.
[0119] The touchscreen layer 400 includes touch electrodes, and the touch electrodes may include a conductive layer ML. The touch electrodes may include a conductive layer ML having a grid structure having light-emitting regions surrounding the first organic light-emitting diode OLED1 and the second organic light-emitting diode OLED2 on a plane. The conductive layer ML may include, for example... Figure 6 and Figure 7 The diagram shows the connection structure of the first conductive layer ML1 and the second conductive layer ML2. According to some other embodiments, the conductive layer ML may include one of the first conductive layer ML1 and the second conductive layer ML2. The conductive layer ML may include molybdenum (Mo), neodymium (Nd), silver (Ag), titanium (Ti), copper (Cu), aluminum (Al), and alloys thereof. The electrodes of the touchscreen layer 400 (e.g., the conductive layer ML) may be covered by the light-blocking layer 610.
[0120] The touchscreen layer 400 may include a first touch insulating layer 401 on the thin film encapsulation layer 300, a second touch insulating layer 403 on the first touch insulating layer 401, and a third touch insulating layer 405 on the second touch insulating layer 403. A first conductive layer ML1 may be disposed between the first touch insulating layer 401 and the second touch insulating layer 403, and a second conductive layer ML2 may be disposed between the second touch insulating layer 403 and the third touch insulating layer 405.
[0121] The first touch insulating layer 401, the second touch insulating layer 403, and the third touch insulating layer 405 may comprise inorganic insulating materials and / or organic insulating materials. According to some embodiments, the first touch insulating layer 401 and the second touch insulating layer 403 may comprise inorganic insulating materials, and the third touch insulating layer 405 may comprise organic insulating materials.
[0122] The light-blocking layer 610 of the anti-reflective layer 600 may include an opening superimposed on the light-emitting regions of the first organic light-emitting diode OLED1 and the second organic light-emitting diode OLED2. Figure 6 An opening (hereinafter referred to as the fourth opening, 610OP1) superimposed on the light-emitting region of the first organic light-emitting diode OLED1 and / or the pixel defining layer 123 is shown, and Figure 7 An opening (hereinafter referred to as the fifth opening, 610OP2) superimposed on the light-emitting region of the second organic light-emitting diode OLED2 and / or the second opening 123OP2 of the pixel defining layer 123 is shown.
[0123] The width of the fourth opening 610OP1 of the light blocking layer 610 can be equal to or greater than the width of the light-emitting area of the first organic light-emitting diode OLED1 and / or the width of the first opening 123OP1 of the pixel defining layer 123. Figure 6 The width of the fourth opening 610OP1 of the light blocking layer 610 is shown to be greater than (e.g., more than) the width of the light-emitting area of the first organic light-emitting diode OLED1 and / or the width of the first opening 123OP1 of the pixel defining layer 123.
[0124] Similarly, the width of the fifth opening 610OP2 of the light blocking layer 610 can be equal to or greater than the width of the light-emitting area of the second organic light-emitting diode OLED2 and / or the width of the second opening 123OP2 of the pixel defining layer 123. Figure 7 The width of the fifth opening 610OP2 of the light blocking layer 610 is shown to be greater than (e.g., more than) the width of the light-emitting area of the second organic light-emitting diode OLED2 and / or the width of the second opening 123OP2 of the pixel defining layer 123.
[0125] Color filters 620 can be located in each of the fourth opening 610OP1 and the fifth opening 610OP2 of the light-blocking layer 610. Each color filter 620 can have the same color as the light emitted from the organic light-emitting diode located below the corresponding color filter 620. For example, as Figure 6 As shown, when one of the first organic light-emitting diodes (OLEDs) in the first display area DA1 emits green light, the color filter 620 located in the fourth opening 610OP1 to be superimposed with the aforementioned first organic light-emitting diode OLED1 may include a green filter. Similarly, when as... Figure 7 When one of the second organic light-emitting diodes (OLEDs) in the second display area DA2 shown emits blue light, the color filter 620 located in the fifth opening 610OP2 to be superimposed with the aforementioned second organic light-emitting diode OLED2 may include a blue filter.
[0126] An outer coating 630 can be placed on the light-blocking layer 610 and the color filter 620. The outer coating 630 is a light-transmitting layer that does not have color in the visible light band and can planarize the upper surface of the light-blocking layer 610 and the upper surface of the color filter 620. The outer coating 630 may include a light-transmitting organic material such as acrylic resin.
[0127] like Figure 7 As shown, the aperture region PH can be located between two adjacent second organic light-emitting diodes OLED2 arranged in the second display region DA2. The aperture region PH can be a set area or a predetermined area where no light-blocking elements (such as circuit elements and / or wiring connected to them) are placed.
[0128] In order to form the aperture region PH in the second display region DA2 while maintaining the resolution of the second display region DA2 at the same level as the resolution of the first display region DA1, the spacing between the pixel circuit elements in the second display region DA2 and the wiring WL connected thereto can be narrower than the spacing between the pixel circuit elements in the first display region DA1 and the wiring WL connected thereto.
[0129] The pixel defining layer 123 may include an opening corresponding to the aperture region PH (hereinafter referred to as the third opening, 123OP3), and the light blocking layer 610 may also include an opening corresponding to the aperture region PH (hereinafter referred to as the sixth opening, 610OP3). The sixth opening 610OP3 does not have a color filter 620, and a portion of the outer coating layer 630 may be located therein. For example, the outer coating layer 630 may at least partially fill the sixth opening 610OP3 and completely cover the light blocking layer 610 and the color filter 620. The sixth opening 610OP3 is superimposed on the third opening 123OP3, but the size (e.g., width or diameter) of the sixth opening 610OP3 may be formed to be larger than the size (e.g., width or diameter) of the third opening 123OP3.
[0130] The first functional layer 221 and the second functional layer 223 may also exist in the portion corresponding to the pore region PH. In some examples, the second electrode 230, which includes a metal element, may include an opening corresponding to the pore region PH (hereinafter referred to as the seventh opening, 230OP). The transmittance of the pore region PH can be improved (e.g., increased) by the seventh opening 230OP. The size (or width or diameter) of the seventh opening 230OP of the second electrode 230 may be smaller than the size (or width or diameter) of the third opening 123OP3.
[0131] The barrier metal layer BML includes an opening (hereinafter referred to as the ninth opening, BML-OP) that overlaps with the hole region PH, but the size (e.g., width or diameter) of the ninth opening BML-OP may be larger than the size (e.g., width or diameter) of the third opening 123OP3.
[0132] According to some embodiments, the spacing between the first conductive layers ML1 and the spacing between the second conductive layers ML2 in the touchscreen layer 400 of the second display area DA2 may be different from the spacing between the first conductive layers ML1 and the second conductive layers ML2 in the first display area DA1, thereby defining an area corresponding to the hole area PH in the second display area DA2. For example, the spacing between the first conductive layers ML1 and the spacing between the second conductive layers ML2 in the touchscreen layer 400 of the second display area DA2 may be narrower than the spacing between the first conductive layers ML1 and the second conductive layers ML2 in the first display area DA1.
[0133] Because no pixel circuits, wiring, pixel limiting layer 123 and light blocking layer 610 are provided in the area corresponding to the hole area PH of the display panel, the transmittance of the second display area DA2 can be improved (e.g., increased) while maintaining the resolution of the second display area DA2 at the same level as the resolution of the first display area DA1.
[0134] Figures 8 to 10 A plan view of a second display area according to some embodiments of the present disclosure is schematically shown.
[0135] Reference Figure 8 A first data line 521 extending in a second direction (e.g., the y-direction or the -y-direction) may be arranged in the second display area DA2. In the second display area DA2, a second data line 522 extending in the second direction (e.g., the y-direction or the -y-direction) and spaced apart from the first data line 521 in a first direction (e.g., the x-direction or the -x-direction) may be arranged. A first driving voltage line 511 may extend in the second direction (e.g., the y-direction or the -y-direction) and may be arranged adjacent to the first data line 521, and a second driving voltage line 512 may extend in the second direction (e.g., the y-direction or the -y-direction) and may be arranged adjacent to the second data line 522. The first driving voltage line 511 and the second driving voltage line 512 may be arranged spaced apart from each other in the first direction (e.g., the x-direction or the -x-direction).
[0136] The area between the first data line 521 and the second data line 522 may include a wiring area BS and a sensor area SS. The sensor area SS may be component 40 (see example...). Figure 3A ) placed on base 100 (see example) Figure 3AThe area on the lower part of the sensor region SS. Figure 5 and Figure 7 The aperture region PH is described in the figure. The sensor region SS can be connected to the pixel-defining layer 123 (see example). Figure 7 The third opening 123OP3 (see example) Figure 7 ) and light-blocking layer 610 (see example) Figure 7 The sixth opening 610OP3 (see example) Figure 7 The components are stacked. Component 40 can be a light sensor or an infrared sensor. However, the invention is not limited thereto.
[0137] The distance d1 between the first data line 521 and the second data line 522 adjacent to the sensor region SS in a first direction (e.g., the x-direction or the -x-direction) can be longer than the distance d2 between the first data line 521 and the second data line 522 adjacent to the wiring region BS in the first direction (e.g., the x-direction or the -x-direction). The first data line 521 and the second data line 522 are also arranged to be separate from other areas in the sensor region SS, so that the components arranged in the sensor region SS can be more efficient in acquiring data using light, etc.
[0138] According to some embodiments, a third data line 523 may be placed in the wiring area BS between the first data line 521 and the second data line 522. The third data line 523 may include a first portion 523a protruding from the first data line 521 in a first direction (e.g., the x-direction) and a second portion 523b connected to the first portion 523a and extending in a second direction (e.g., the y-direction or the -y-direction). In other words, the third data line 523 may not be placed in the sensor area SS. The sensor area SS may be an area where the third data line 523 is not placed.
[0139] According to some embodiments, a fourth data line 524 may be located between the first data line 521 and the second data line 522. The fourth data line 524 may include a third portion 524a protruding from the second data line 522 in a first direction (e.g., the -x direction) and a fourth portion 524b connected to the third portion 524a and extending in a second direction (e.g., the y direction or the -y direction). The fourth data line 524 is placed in the wiring area BS and may not be placed in the sensor area SS. In other words, the sensor area SS may be an area where the fourth data line 524 is not arranged. For example, the sensor area SS may be an area where neither the third data line 523 nor the fourth data line 524 is arranged.
[0140] In the second display area DA2, multiple wirings extending in a second direction (e.g., the y-direction or the -y-direction) can be arranged between the first data line 521 and the second data line 522 extending in the second direction (e.g., the y-direction or the -y-direction). The second display area DA2 can be the area where multiple wirings are arranged between the first data line 521 and the second data line 522, and can include a sensor area SS with components arranged below it. Therefore, unlike the first display area DA1, in the second display area DA2, multiple wirings may not be arranged in the entire area between the first data line 521 and the second data line 522. In such an example, unlike the first display area DA1, no multiple wirings are arranged between the first data line 521 and the second data line 522 in the second display area DA2, so the flatness of the organic insulating layer of the first display area DA1 and the flatness of the organic insulating layer of the second display area DA2 are different from each other, and therefore, differences in brightness or color may occur between the first display area DA1 and the second display area DA2. Furthermore, unlike the first display area DA1, in the second display area DA2, there are no multiple wirings arranged between the first data line 521 and the second data line 522. This makes the capacitance of the parasitic capacitor appearing in the first display area DA1 different from the capacitance of the parasitic capacitor appearing in the second display area DA2. Therefore, there may be differences in brightness or color between the first display area DA1 and the second display area DA2.
[0141] According to some embodiments of the present invention, a third data line 523 extending from the first data line 521 and a fourth data line 524 extending from the second data line 522 are arranged in a wiring area BS other than the sensor area SS in the region between the first data line 521 and the second data line 522. This can reduce the difference in flatness of the organic insulating layer between the first display area DA1 and the second display area DA2, and can also reduce the difference in capacitance of parasitic capacitors appearing in the first display area DA1 and the second display area DA2. This can prevent or significantly reduce the brightness difference or color difference between the first display area DA1 and the second display area DA2, and can improve (e.g., increase) the quality and reliability of the display device 1.
[0142] Reference Figure 9According to some embodiments, the common voltage line 530 may be placed in the area between the first data line 521 and the second data line 522. The common voltage line 530 may be placed in the wiring area BS between the first data line 521 and the second data line 522. The common voltage line 530 may not be placed in the sensor area SS. In other words, the sensor area SS may be an area where the common voltage line 530 is not arranged. The common voltage line 530 is placed at the top and can be electrically connected to the counter electrode of the light-emitting element to which the common voltage ELVSS is applied through the contact hole CNT1.
[0143] The common voltage line 530 may include a first common voltage line 531 and a second common voltage line 532 extending in a second direction (e.g., the y-direction or -y-direction) and spaced apart from each other in a first direction (e.g., the x-direction or -x-direction), and a third common voltage line 533 and a fourth common voltage line 534 extending in the first direction (e.g., the x-direction or -x-direction) and spaced apart from each other in the second direction (e.g., the y-direction or -y-direction). The first common voltage line 531, the second common voltage line 532, the third common voltage line 533, and the fourth common voltage line 534 may be connected to each other. The first common voltage line 531, the second common voltage line 532, the third common voltage line 533, and the fourth common voltage line 534 may be arranged in a rectangular shape. In other words, the common voltage line 530 may be arranged in a square shape.
[0144] According to some embodiments of the present invention, the common voltage line 530 is arranged in the wiring area BS located in the region between the first data line 521 and the second data line 522 in the second display area DA2, such that there is almost no difference in the flatness of the organic insulating layer between the first display area DA1 and the second display area DA2, and there is no difference in the capacitance of the parasitic capacitors that appear in the first display area DA1 and the second display area DA2, thereby preventing or substantially reducing the brightness difference or color difference between the first display area DA1 and the second display area DA2. Furthermore, by improving the voltage drop phenomenon of the common voltage ELVSS in the second display area DA2, the common voltage ELVSS applied to the pixel circuit PC of the second display area DA2 can be improved, and the quality and reliability of the display device 1 can be improved (e.g., increased).
[0145] Reference Figure 10 The area between the first data line 521 and the second data line 522 may include a general area AS and a sensor area SS. The distance d1 between the first data line 521 and the second data line 522 adjacent to the sensor area SS along a first direction (e.g., along the x-direction or the -x-direction) may be longer than the distance d2 between the first data line 521 and the second data line 522 adjacent to the general area AS along the first direction (e.g., along the x-direction or the -x-direction).
[0146] The third driving voltage line 513 may include a fifth portion 513a protruding from the first driving voltage line 511 in a first direction (e.g., the x-direction) and a sixth portion 513b connected to the fifth portion 513a and extending in a second direction (e.g., the y-direction or the -y-direction). The third driving voltage line 513 may be placed separately from the sensor region SS. In other words, the sensor region SS may be a region where the third driving voltage line 513 is not disposed.
[0147] The fourth driving voltage line 514 may include a seventh portion 514a protruding from the second driving voltage line 512 in a first direction (e.g., the -x direction) and an eighth portion 514b connected to the seventh portion 514a and extending in a second direction (e.g., the y direction or the -y direction). The fourth driving voltage line 514 may be placed separately from the sensor region SS. In other words, the sensor region SS may be a region where the fourth driving voltage line 514 is not disposed.
[0148] According to some embodiments of the present invention, a third driving voltage line 513 extending from the first driving voltage line 511 and a fourth driving voltage line 514 extending from the second driving voltage line 512 are arranged in the second display area DA2, such that there is almost no difference in the flatness of the organic insulating layer between the first display area DA1 and the second display area DA2, and there is almost no difference in the capacitance of the parasitic capacitors present in the first display area DA1 and the second display area DA2, thereby preventing or substantially reducing the brightness difference or color difference between the first display area DA1 and the second display area DA2.
[0149] Furthermore, in addition to the first driving voltage line 511 and the second driving voltage line 512, the third driving voltage line 513 and the fourth driving voltage line 514 are arranged such that the resistance of the driving voltage ELVDD in the second display area DA2 can be reduced, and the quality and reliability of the display device 1 can be improved (e.g., increased). According to some embodiments, the wiring to which data, common voltage ELVSS, or driving voltage ELVDD is applied is arranged to be spaced apart from the sensor area SS arranged in the second display area DA2, such that there is almost no difference in the flatness of the organic insulating layer between the first display area DA1 and the second display area DA2, and there is no difference in the capacitance of the parasitic capacitors present in the first display area DA1 and the second display area DA2, thereby improving (e.g., increasing) the quality and reliability of the display device 1.
[0150] According to some embodiments of the present invention as described above, a display device with improved reliability and quality can be realized.
[0151] It should be understood that the embodiments described herein should be considered descriptive and not for limiting purposes. The description of features or aspects within each embodiment should generally be considered suitable for other similar features or aspects in other embodiments. Although one or more embodiments have been described with reference to the accompanying drawings, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope defined by the appended claims and their equivalents.
Claims
1. A display device, the display device comprising: The substrate includes a first display area and a second display area, wherein the second display area includes a sensor area; A first data line is arranged in the second display area and extends in a first direction; The second data line is arranged in the second display area, extends in the first direction, and is arranged separately from the first data line in a second direction that intersects the first direction; as well as A third data line is disposed between the first data line and the second data line, and includes a first portion protruding from the first data line in the second direction and a second portion connected to the first portion and extending in the first direction. The area between the first data line and the second data line includes a wiring area and the sensor area. The third data line is arranged in the wiring area.
2. The display device according to claim 1, wherein, The sensor region overlaps with the openings in the pixel definition layer and the light blocking layer.
3. The display device according to claim 1, further comprising: A fourth data line is disposed between the first data line and the second data line, and includes a third portion protruding from the second data line in the second direction and a fourth portion connected to the third portion and extending in the first direction.
4. The display device according to claim 3, wherein, The fourth data line is arranged in the wiring area.
5. The display device according to claim 1, wherein, The distance between the first data line and the second data line in the second direction at a position adjacent to the sensor area is longer than the distance between the first data line and the second data line in the second direction at a position adjacent to the wiring area.
6. The display device according to claim 3, wherein, The third and fourth data lines are not located in the sensor area.
7. The display device according to claim 1, wherein, The component is located in the sensor region on the lower part of the substrate.
8. The display device according to claim 7, wherein, The component is a light sensor.
9. The display device according to claim 7, wherein, The component is an infrared sensor.
10. A display device, the display device comprising: The substrate includes a first display area and a second display area, wherein the second display area includes a sensor area; A first data line is arranged in the second display area and extends in a first direction; The second data line is arranged in the second display area, extends in the first direction, and is arranged separately from the first data line in a second direction that intersects the first direction; as well as A common voltage line is positioned between the first data line and the second data line. The area between the first data line and the second data line includes a wiring area and the sensor area. The common voltage line is arranged in the wiring area.
11. The display device according to claim 10, wherein, The common voltage lines include a first common voltage line and a second common voltage line that extend in the first direction and are spaced apart in the second direction, and a third common voltage line and a fourth common voltage line that extend in the second direction and are spaced apart in the first direction.
12. The display device according to claim 11, wherein, The first common voltage line, the second common voltage line, the third common voltage line, and the fourth common voltage line are connected to each other.
13. The display device according to claim 12, wherein, The first common voltage line, the second common voltage line, the third common voltage line, and the fourth common voltage line are arranged in a rectangular shape.
14. The display device according to claim 10, wherein, The common voltage line is electrically connected via a contact hole to the counter electrode of the organic light-emitting diode on the common voltage line to which the common voltage is applied.
15. A display device, the display device comprising: The substrate includes a first display area and a second display area, wherein the second display area includes a sensor area; A first driving voltage line is arranged in the second display area and extends in a first direction; The second driving voltage line is arranged separately from the first driving voltage line in a second direction that intersects the first direction and extends in the first direction; A first data line is arranged between the first driving voltage line and the second driving voltage line and extends in the first direction; The second data line is arranged between the first data line and the second driving voltage line and extends in the first direction; as well as The third driving voltage line includes a fifth portion protruding from the first driving voltage line in the second direction and a sixth portion connected to the fifth portion and extending in the first direction. The area between the first data line and the second data line includes a general area and the sensor area, and Wherein, the distance by which the first data line and the second data line are separated in the second direction at a position adjacent to the sensor area is longer than the distance by which the first data line and the second data line are separated in the second direction at a position adjacent to the general area.
16. The display device according to claim 15, wherein, The third driving voltage line is arranged separately from the sensor area.
17. The display device according to claim 15, further comprising: The fourth driving voltage line includes a seventh portion protruding from the second driving voltage line in the second direction and an eighth portion connected to the seventh portion and extending in the first direction.
18. The display device according to claim 17, wherein, The fourth driving voltage line is arranged separately from the sensor area.
19. The display device according to claim 17, wherein, The third and fourth driving voltage lines are not arranged in the sensor area.
20. An electronic device, the electronic device comprising: The processor is configured to provide input image data; as well as A display device configured to display an image based on the input image, the display device comprising: a substrate including a first display area and a second display area, the second display area including a sensor area; a first data line disposed in the second display area and extending in a first direction; a second data line disposed in the second display area, extending in the first direction, and disposed separately from the first data line in a second direction intersecting the first direction; and a third data line disposed between the first data line and the second data line, and including a first portion protruding from the first data line in the second direction and a second portion connected to the first portion and extending in the first direction. The area between the first data line and the second data line includes a wiring area and the sensor area. The third data line is arranged in the wiring area.
Citation Information
Patent Citations
Versatile Metaverse Integration Platform
KR1020240102709A