DISPLAY DEVICE AND ELECTRONIC APPARATUS

A display device including a display area and a non-display area surrounding the display area, the display area including a first display area and a second display area. The display device also includes a substrate; and a plurality of pixels arranged in the substrate and including first pixels and second pixels, the first pixels included in the first display area, and the second pixels included in the second display area, wherein the first pixels include a repeating arrangement structure of first pixel units including a plurality of pixels having different colors, and the second pixels each include a repeating arrangement structure of second pixel units including a greater number of pixels than the number of pixels included in each of the first pixel units.

CROSS REFERENCE TO RELATED APPLICATION

This application claims priority from and the benefit of Korean Patent Application No. 10-2020-0006753, filed on Jan. 17, 2020, which is hereby incorporated by reference for all purposes as if fully set forth herein.

BACKGROUND

Field

Exemplary embodiments/implementations of the invention relate generally to a display device and an electronic apparatus including the same.

Discussion of the Background

Recently, the usage of display devices has diversified. In addition, as display devices have become thinner and lighter, their range of use has gradually been extended.

As the area occupied by a display area in display devices expands, various functions that are combined or associated with display devices have been added. In order to add various functions while expanding the area, research is being carried out on display devices having a region for adding various functions other than the display of images inside a display area.

To add various functions to a display device, a component such as a camera or a sensor may be arranged. To arrange a component while securing a display area having a larger area, a component may be arranged to overlap a display area.

SUMMARY

As one of methods of arranging a component, though a display device may include a transmission area through which a wavelength such as light or sound may pass, in the case where the transmission area is provided, a resolution may be reduced.

Exemplary embodiments provide a display device and an electronic apparatus configured to prevent or minimize resolution reduction and secure a wide area of a display area, and in which a component such as a sensor or a camera may be arranged. However, it should be understood that embodiments described herein should be considered in a descriptive sense only and not for limitation of the disclosure.

An exemplary embodiment of the invention provides a display device including a display area and a non-display area surrounding the display area, the display area including a first display area and a second display area, includes a substrate, and a plurality of pixels arranged over the substrate and including first pixels and second pixels, the first pixels defining the first display area, and the second pixels defining the second display area, wherein the first pixels include a repeating arrangement structure of first pixel units each including a plurality of pixels having different colors, and the second pixels include repeating arrangement structure of second pixel units each including a greater number of pixels than the number of pixels included in each of the first pixel units.

The second display area may include a transmission area between the second pixel units that are repeatedly arranged.

A first distance between pixels of the same color that neighbor each other among the first pixels may be greater than a second distance between pixels of the same color that neighbor each other among the second pixels.

A third distance between pixels of different colors that neighbor each other among the first pixels may be equal to or greater than a fourth distance between pixels of different colors that neighbor each other among the second pixels.

A size or a shape of the first pixels may be different from a size or a shape of the second pixels.

A pixel of a different color may be arranged between pixels of the same color that neighbor each other among the first pixels.

The second pixel units each may include at least two pixels of the same color.

The display device may further include a plurality of light-emitting diodes respectively corresponding to the first pixels and the second pixels, wherein each of the plurality of light-emitting diodes may have a stacked structure of a pixel electrode, an emission layer, and an opposite electrode.

A first separation distance between pixel electrodes respectively corresponding to pixels having the same color that neighbor each other among the first pixels may be greater than a second separation distance between pixel electrodes respectively corresponding to pixels having the same color that neighbor each other among the second pixels.

The emission layers respectively corresponding to pixels of the same color that neighbor each other among the second pixels may be formed as a single body.

The opposite electrodes respectively corresponding to the first pixels and the second pixels may be formed as a single body and include a hole corresponding to the transmission area.

The display device may further include a bottom metal layer arranged between the substrate and the plurality of pixels and located in the second display area.

Another exemplary embodiment of the invention provides an electronic apparatus including a display device having a first display area and a second display area, and a component overlapping a transmission area of the second display area. The display device includes a plurality of pixels including first pixels and second pixels, the first pixels defining the first display area, and the second pixels defining the second display area, wherein the first pixels include a repeating arrangement structure of first pixel units each including a plurality of pixels having different colors, the second pixels include a repeating arrangement structure of second pixel units each including a greater number of pixels than the number of pixels included in each of the first pixel units, and the transmission area provided between the second pixel units that are repeatedly arranged.

A first distance between pixels of the same color that neighbor each other among the first pixels may be greater than a second distance between pixels of the same color that neighbor each other among the second pixels.

A third distance between pixels of different colors that neighbor each other among the first pixels may be equal to or greater than a fourth distance between pixels of different colors that neighbor each other among the second pixels.

A size or a shape of the first pixels may be different from a size or a shape of the second pixels.

The electronic apparatus may further include a plurality of light-emitting diodes respectively corresponding to the first pixels and the second pixels, and a plurality of thin film transistors respectively connected to the plurality of light-emitting diodes, wherein each of the plurality of light-emitting diodes may have a stacked structure of a pixel electrode, an emission layer, and an opposite electrode.

The electronic apparatus may further include a bottom metal layer arranged below thin film transistors located in the second display area among the plurality of thin film transistors.

A first separation distance between pixel electrodes respectively corresponding to pixels of the same color that neighbor each other among the first pixels may be greater than a second separation distance between pixel electrodes respectively corresponding to pixels of the same color that neighbor each other among the second pixels.

The emission layers respectively corresponding to pixels of the same color that neighbor each other among the second pixels may be formed as a single body.

The single body of the emission layers may cover a top surface of a pixel-defining layer covering edges of pixel electrodes respectively corresponding to pixels of the same color that neighbor each other among the second pixels.

A pixel of a different color may be located between pixels of the same color that neighbor each other among the first pixels.

The first pixel units each may include at least one first red pixel, at least one first green pixel, and at least one first blue pixel, the second pixel units each may include at least one second red pixel, at least one second green pixel, and at least one second blue pixel, and

The sum of the number of that at least one second red pixel, the number of the at least one second green pixel, and the number of the at least one second blue pixel may be twice or more of the sum of the number of the at least one first red pixel, the number of the at least one first green pixel, and the number of the at least one first blue pixel.

The component may include a sensor or a camera.

These and/or other aspects will become apparent and more readily appreciated from the following description of the embodiments, the accompanying drawings, and claims.

DETAILED DESCRIPTION

FIGS. 1A and 1Bare perspective views illustrating an electronic apparatus1including a display device according to an embodiment.

Referring toFIGS. 1A and 1B, the electronic apparatus1may include a display area DA and a non-display area NDA, the non-display area NDA being outside the display area DA. The electronic apparatus1may provide an image through an array of a plurality of pixels arranged two-dimensionally. The plurality of pixels may include first pixels P1arranged in a first display area DA1, and second pixels P2arranged in a second display area DA2.

The electronic apparatus1may provide a first image by using light emitted from the first pixels P1arranged in the first display area DA1, and provide a second image by using light emitted from the second pixels P2arranged in the second display area DA2. In an embodiment, the first image and the second image may include portions of one of images displayed by the display area DA of the electronic apparatus1. In an embodiment, the electronic apparatus1may provide the first image and the second image independent of each other.

The second display area DA2may include a transmission area TA located between the second pixels P2. The transmission area TA includes a region through which light may pass and in which a pixel is not arranged.

The non-display area NDA includes a region that does not display an image and may entirely surround the display area DA. A driver, etc. may be arranged in the non-display area NDA, the driver providing an electric signal or power to the first pixels P1and the second pixels P2. The non-display area NDA may include a pad to which an electronic element or a printed circuit board, etc. may be electrically connected.

As illustrated inFIG. 1A, the second display area DA2may have a circular or elliptical shape in a plan view. Alternatively, the second display area DA2may have a polygonal shape such as a quadrangular or bar type as illustrated inFIG. 1B.

The second display area DA2may be arranged inside the first display area DA1(seeFIG. 1A) or arranged on one side of the first display area DA1(seeFIG. 1B). As illustrated inFIG. 1A, the second display area DA2may be entirely surrounded by the first display area DA1. In an embodiment, the second display area DA2may be partially surrounded by the first display area DA1. For example, the second display area DA2may be located in a corner portion on one side of the first display area DA1and partially surrounded by the first display area DA1.

A ratio of the second display area DA2to the display area DA may be less than a ratio of the first display area DA1to the display area DA. As illustrated inFIG. 1A, the electronic apparatus1may include one second display area DA2or include two or more second display areas DA2.

The electronic apparatus1may include mobile phones, tablet personal computers (PC), notebook computers, and smartwatches or smartbands worn on a wrist.

FIGS. 2A and 2Care cross-sectional views of a portion of the electronic apparatus1including a display device according to an embodiment.

Referring toFIGS. 2A to 2C, the electronic apparatus1may include a display device10and a component20overlapping the display device10.

The display device10may include a substrate100, a display layer200, a thin-film encapsulation layer300, a touch input layer40, and an optical functional layer such as an optical plate50A (seeFIGS. 2A and 2B) or a filter plate50B (seeFIG. 2C), the display layer200being on the substrate100, and the thin-film encapsulation layer300being on the display layer200.

The substrate100may include glass or a polymer resin. For example, the polymer resin of the substrate100may include polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, and cellulose acetate propionate. The substrate21including the polymer resin may be flexible, rollable, or bendable. The substrate21may have a multi-layered structure including a layer including the polymer resin and an inorganic layer (not illustrated).

The display layer200may be arranged on a front surface of the substrate100, and a bottom protective film175may be arranged on a rear surface of the substrate100. The bottom protective film175may be attached on the rear surface of the substrate100. An adhesive layer (not illustrated) may be arranged between the bottom protective film175and the substrate100. Alternatively, the bottom protective film175may be directly formed on the rear surface of the substrate100. In such case, the adhesive layer may not be arranged between the bottom protective film175and the substrate100.

The bottom protective film175may support and protect the substrate100. The bottom protective film175may include an opening1750P overlapping the second display area DA2. Because the bottom protective film175includes the opening1750P, a transmittance of the second display area DA2, for example, a light transmittance of the transmission area TA may be improved. The bottom protective film175may include polyethylene terephthalate (PET) or polyimide (PI).

The display layer200may include a circuit layer, a display element layer, and an insulating layer IL, the circuit layer including a thin film transistor TFT, and the display element layer including an organic light-emitting diode OLED, which is a display element. A thin film transistor TFT and an organic light-emitting diode OLED may be arranged in each of the first display area DA1and the second display area DA2, the organic light-emitting diode OLED being electrically connected to the thin film transistor TFT. The second display area DA2may include the transmission area TA in which the thin film transistor TFT and the organic light-emitting diode OLED are not arranged.

The transmission area TA includes a region through which light emitted from the component20and/or directed to the component20may pass. In the display device10, a transmittance of the transmission area TA may be 30% or more, 40% or more, 50% or more, 60% or more, 75% or more, 80% or more, 85% or more, or 90% or more. The transmission area TA may lay between two thin film transistor TFT structures.

The display layer200may be covered by the thin-film encapsulation layer300or covered by an encapsulation substrate300B.

In an embodiment, as illustrated inFIGS. 2A and 2C, the thin-film encapsulation layer300may include at least one inorganic encapsulation layer and at least one organic encapsulation layer. In an embodiment, the thin-film encapsulation layer300may include first and second inorganic encapsulation layers310and330and an organic encapsulation layer320therebetween.

In an embodiment, as illustrated inFIG. 2B, the encapsulation substrate300B may face the substrate100with the display layer200therebetween. There may be a gap between the encapsulation substrate300B and the display layer200. The encapsulation substrate300B may include glass. Sealant is arranged between the substrate100and the encapsulation substrate300B. The sealant is arranged in the non-display area NDA described with reference toFIG. 1A or 1B. The sealant arranged in the non-display area NDA surrounds the display area DA and prevents moisture from penetrating to the display area DA through a lateral side thereof.

The touch input layer40may obtain an external input, for example, and coordinate information corresponding to a touch event. The touch input layer40may include a touch electrode and trace lines, the trace lines being connected to the touch electrode. The touch input layer40may sense an external input by using a mutual capacitive method or a self-capacitive method.

The touch input layer40may be formed on the thin-film encapsulation layer300. Alternatively, the touch input layer40may be formed separately and then coupled on the thin-film encapsulation layer300through an adhesive layer such as an optical clear adhesive OCA. In an embodiment, as illustrated inFIGS. 2A to 2C, the touch input layer40may be directly formed right on the thin-film encapsulation layer300. In this case, the adhesive layer may not be arranged between the touch input layer40and the thin-film encapsulation layer300.

The optical function layer (optical plate50A or filter plate50B) may include a reflection prevention layer. The reflection prevention layer may reduce reflectivity of light (external light) incident toward the display device10from the outside.

In an embodiment, as illustrated inFIG. 2A or 2B, the reflection prevention layer may include the optical plate50A including a retarder and/or a polarizer. The retarder may include a film-type retarder or a liquid crystal-type retarder. The retarder may include a λ/2 retarder and/or a λ/4 retarder. The polarizer may include a film-type polarizer or a liquid crystal-type polarizer. The film-type polarizer may include a stretchable synthetic resin film, and the liquid crystal-type polarizer may include liquid crystals arranged in a predetermined arrangement.

In an embodiment, as illustrated inFIG. 2C, the reflection prevention layer may include the filter plate50B including a black matrix and color filters. The filter plate50B may include a base layer510, color filters520, a black matrix530, and an overcoat layer540. The color filters520and the black matrix530may be disposed on a rear surface of the base layer510, and the overcoat layer540may be on the color filters520and the black matrix530.

The color filters520may be arranged by taking into account colors of light emitted from pixels of the display device10. For example, the color filter520may have red, green, or blue color depending on the color of light emitted from an organic light-emitting diode OLED. There is no color filter520and no black matrix530in the transmission area TA. For example, a layer including the color filter520and the black matrix530may include a hole5300P corresponding to the transmission area TA. The hole5300P may be positioned between two thin film transistors TFT in a plan view. The hole5300P may be positioned between two organic light-emitting diodes OLEDs in a plan view. The hole5300P may be at least partially filled with a portion of the overcoat layer540. The overcoat layer540may include an organic material such as a resin. The organic material may be transparent. A structure of the filter plate50B is applicable to the display device10including the encapsulation substrate300B illustrated inFIG. 2B.

In an embodiment, the reflection prevention layer may include a destructive interference structure. The destructive interference structure may include a first reflective layer and a second reflective layer arranged on different layers. First-reflected light and second-reflected light respectively reflected by the first reflective layer and the second reflective layer may be destructively interfered and thus reflectivity of external light may be reduced.

The component20may be located in the second display area DA2. The component20may include an electronic element that uses light or sound. For example, the electronic element may include a sensor measuring a distance such as a proximity sensor, a sensor recognizing a portion (e.g. a fingerprint, an iris, a face, etc.) of a user's body, a small lamp outputting light, or an image sensor (e.g. a camera) capturing an image. The electronic element that uses light may use light in various wavelength bands such as visible light, infrared light, and ultraviolet light. The electronic element that uses sound may use an ultrasonic wave or sound in other frequency bands.

In an embodiment, the component20may include sub-components such as a light emitter and a light receiver. The light emitter and the light receiver may have an integrated structure, or a pair of light emitter and light receiver that have physically separated structures may constitute one component20.

One component20may be arranged in the second display area DA2or a plurality of components20may be arranged in the second display area DA2. In the case where the electronic apparatus1includes a plurality of components20, the electronic apparatus1may include the number of second display areas DA2corresponding to the number of components20. For example, the electronic apparatus1may include a plurality of second display areas DA2described with reference toFIG. 1A. The plurality of second display areas DA2may be apart from each other. In an embodiment, in the case where the electronic apparatus1includes a plurality of components20, the electronic apparatus1may include one second display area DA2. For example, the electronic apparatus1may include the second display area DA2described with reference toFIG. 1B. The plurality of components20may be apart from each other in a lengthwise direction (e.g. an x-direction ofFIG. 1) of the second display area DA2of a bar type.

Though it is illustrated inFIGS. 2A to 2Cthat the display device20includes the organic light-emitting diode OLED as a display element, the display device10according to the embodiment is not limited thereto. In another embodiment, the display device10may include inorganic light-emitting displays including an inorganic material, or quantum dot light-emitting displays, the inorganic material including micro light-emitting diodes. For example, an emission layer of a display element of the display device10may include an organic material, include an inorganic material, include a quantum dot, include an organic material and a quantum dot, or include an inorganic material and a quantum dot.

FIGS. 3A and 3Bare plan views of the display device10according to an embodiment.

Referring toFIGS. 3A and 3B, the display device10may include an array of a plurality of pixels arranged on the substrate100. The plurality of pixels may include the first pixels P1arranged in the first display area DA1and the second pixels P2arranged in the second display area DA2.

The display area DA may include the first display area DA1and the second display area DA2. An area of the first display area DA1may be different from an area of the second display area DA2. The area of the first display area DA1may be greater than the area of the second display area DA2.

The first pixels P1may be two-dimensionally arranged in the first display area DA1and the second pixels P2may be two-dimensionally arranged in the second display area DA2. The transmission area TA is arranged in the second display area DA2. The transmission area TA may be arranged between second pixels P2that are close to each other.

The non-display area NDA may entirely surround the display area DA. A scan driver, a data driver, etc. may be arranged in the non-display area NDA. A pad230may be located in the non-display area NDA. The pad230may be adjacent one of edges of the substrate100. The pad230may be exposed by not being covered by an insulating layer and be electrically connected to a flexible printed circuit board FPCB. The flexible printed circuit board FPCB may electrically connect a controller to the pad230and supply a signal or power transferred from the controller. In an embodiment, a data driver may be arranged on the flexible printed circuit board FPCB. To transfer a signal or voltage of the flexible printed circuit board FPCB to the first pixels P1or the second pixels P2, the pad230may be connected to a plurality of wirings.

In another embodiment, instead of the flexible printed circuit board FPCB, an integrated circuit may be arranged on the pad230. The integrated circuit may include, for example, a data driver and may be electrically connected to the pad230through an anisotropic conductive film including a conductive ball.

Each of the first pixel P1and the second pixel P2may emit light having a predetermined color by using the organic light-emitting diode OLED (seeFIGS. 2A to 2C). Each organic light-emitting diode OLED may emit, for example, red, green, or blue light. Each organic light-emitting diode OLED may be connected to a pixel circuit including a transistor and a capacitor.

FIG. 4is an equivalent circuit diagram illustrating a circuit connected to an organic light-emitting diode OLED of the display device10according to an embodiment.

Referring toFIG. 4, the organic light-emitting diode OLED is electrically connected to a pixel circuit PC. The pixel circuit PC may include a first thin film transistor T1, a second thin film transistor T2, and a storage capacitor Cst.

The second thin film transistor T2is a switching thin film transistor, may be connected to a scan line SL and a data line DL, and may transfer a data voltage (or a data signal Dm) input from a data line DL to the first thin film transistor T1based on a switching voltage (or a switching signal Sn) input from the scan line SL. A storage capacitor Cst may be connected to a second thin film transistor T2and a driving voltage line PL and may store a voltage corresponding to a difference between a voltage transferred from the second thin film transistor T2and a first power voltage ELVDD supplied to the driving voltage line PL.

The first thin film transistor T1is a driving thin film transistor, may be connected to the driving voltage line PL and the storage capacitor Cst, and may control a driving current flowing through an organic light-emitting diode OLED from the driving voltage line PL in response to the voltage stored in the storage capacitor Cst. The organic light-emitting diode OLED may emit light having a predetermined brightness by using the driving current. An opposite electrode (e.g. a cathode) of the organic light-emitting diode OLED may receive a second power voltage ELVSS.

Though it is illustrated inFIG. 4that a pixel circuit PC includes two thin film transistors and one storage capacitor, the embodiment is not limited thereto. The number of thin film transistors and the number of storage capacitors may be variously changed depending on a design of the pixel circuit PC. For example, the pixel circuit PC may include three, four, five or more thin film transistors.

FIG. 5Ais a cross-sectional view illustrating a portion of the display device10according to an embodiment.FIG. 5Aillustrates one portions of the first display area DA1and the second display area DA2.

Referring toFIG. 5A, the substrate100may have a multi-layered structure. The substrate100may include a first base layer101, a first inorganic layer102, a second base layer103, and a second inorganic layer104that are sequentially stacked.

Each of the first base layer101and the second base layer103may include a polymer resin. The polymer resin may include polyethersulfone (PES), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyimide (PI), polycarbonate, cellulose tri acetate (TAC), and cellulose acetate propionate (CAP). The polymer resin may be transparent.

Each of the first inorganic layer102and the second inorganic layer104includes a barrier layer preventing the penetration of external foreign substances and may include a single layer or a multi-layer including an inorganic material such as silicon nitride, silicon oxynitride, and/or silicon oxide.

A buffer layer111may reduce or block the penetration of foreign substances, moisture, or external air from below the substrate100and provide a flat surface on the substrate100. The buffer layer111may include an inorganic insulating material such as silicon oxide, silicon oxynitride, and silicon nitride and have a single-layered structure or a multi-layered structure including the above materials.

The pixel circuit PC may be arranged on the buffer layer111, the pixel circuit PC including the thin film transistor TFT and the storage capacitor Cst. The pixel circuit PC may be arranged in the first display area DA1and the second display area DA2. The pixel circuit PC of the first display area DA1may have the same structure as that of the pixel circuit PC of the second display area DA2. A bottom metal layer BML may be arranged between the pixel circuit PC and the substrate100that are arranged in the second display area DA2. In the second display area DA2, the bottom metal layer BML may prevent light from being diffracted through a narrow gap between wirings connected to the pixel circuit PC and may improve the performance of a thin film transistor TFT, the light being emitted from or directed to the component20described with reference toFIGS. 2A to 2C. There is no bottom metal layer BML in the transmission area TA. For example, the bottom metal layer BML may include a hole(s) located in the transmission area TA.

The bottom metal layer BML may be electrically connected to a connection line CL. The connection line CL may be electrically connected to a line connected to the pixel circuit PC, the storage capacitor Cst, or the thin film transistor TFT. For example, the bottom metal layer BML may be electrically connected to a gate electrode, a source electrode, or a drain electrode of a thin film transistor TFT, or may be electrically connected to the driving voltage line PL (seeFIG. 4) described above with reference toFIG. 4or one of capacitor plates of the storage capacitor Cst.

The thin film transistor TFT may include a semiconductor layer μl, a gate electrode G1, a source electrode S1, and a drain electrode D1, the gate electrode G1overlapping a channel region of the semiconductor layer μl, and the source electrode S1and the drain electrode D1being respectively connected to a source region and a drain region of the semiconductor layer μl. A gate insulating layer112may be arranged between the semiconductor layer μl and the gate electrode G1. A first interlayer insulating layer113and a second interlayer insulating layer115may be arranged between the gate electrode G1and the source electrode S1, or between the gate electrode G1and the drain electrode D1.

The storage capacitor Cst may overlap the thin film transistor TFT. The storage capacitor Cst may include a first capacitor plate CE1and a second capacitor plate CE2overlapping each other. In an embodiment, the gate electrode G1of the thin film transistor TFT may include the first capacitor plate CE1of the storage capacitor Cst. The first interlayer insulating layer113may be arranged between the first capacitor plate CE1and the second capacitor plate CE2.

The semiconductor layer μl may include polycrystalline silicon. In an embodiment, the semiconductor layer μl may include amorphous silicon. In an embodiment, the semiconductor layer μl may include an oxide of at least one of indium (In), gallium (Ga), stannum (Sn), zirconium (Zr), vanadium (V), hafnium (Hf), cadmium (Cd), germanium (Ge), chromium (Cr), titanium (Ti), and zinc (Zn). The semiconductor layer μl may include a channel region, a source region, and a drain region, the source region and the drain region being doped with impurities.

The gate insulating layer112may include an inorganic insulating material such as silicon oxide, silicon oxynitride, and silicon nitride and have a single-layered structure or a multi-layered structure including the above materials.

The gate electrode G1or the first capacitor plate CE1may include a low-resistance conductive material such as molybdenum (Mo), aluminum (Al), copper (Cu), and/or titanium (Ti) and have a single-layered structure or a multi-layered structure including the above materials.

The first interlayer insulating layer113may include an inorganic insulating material such as silicon oxide, silicon oxynitride, and silicon nitride and have a single-layered structure or a multi-layered structure including the above materials.

The second interlayer insulating layer115may include an inorganic insulating material such as silicon oxide, silicon oxynitride, and silicon nitride and have a single-layered structure or a multi-layered structure including the above materials.

The source electrode S1or the drain electrode D1includes aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chrome (Cr), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and/or copper (Cu) and have a single-layered structure or a multi-layered structure including the above materials. For example, the source electrode S1or the drain electrode D1may have a three-layered structure of a titanium layer/aluminum layer/titanium layer.

The pixel circuit PC may be electrically connected to a pixel electrode221, the pixel circuit PC including the thin film transistor TFT and the storage capacitor Cst. In an embodiment, as illustrated inFIG. 6, the pixel circuit PC may be electrically connected to the pixel electrode221by a contact metal CM.

The contact metal CM may be arranged on a first planarization layer117and connected to the pixel circuit PC through a contact hole formed in the first planarization layer117. The contact metal CM may include aluminum (Al), platinum (Pt), palladium (Pd), silver (Ag), magnesium (Mg), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chrome (Cr), calcium (Ca), molybdenum (Mo), titanium (Ti), tungsten (W), and/or copper (Cu) and have a single-layered structure or a multi-layered structure including the above materials.

The first planarization insulating layer117may include an organic insulating material. The first planarization insulating layer117may include an organic insulating material such as acryl, benzocyclobutene (BCB), polyimide, or hexamethyldisiloxane (HMDSO). The organic insulating material of the first planarization insulating layer117may include a photosensitive organic insulating material.

A second planarization insulating layer118is arranged on the contact metal CM. The second planarization insulating layer118may include an organic insulating material. The second planarization insulating layer118may include an organic insulating material such as acryl, benzocyclobutene (BCB), polyimide, or hexamethyldisiloxane (HMDSO). The organic insulating material of the second planarization insulating layer118may include a photosensitive organic insulating material.

The pixel electrode221may be arranged on the second planarization insulating layer118. The pixel electrode221may be connected to the contact metal CM through a contact hole of the second planarization insulating layer118.

The pixel electrode221may include a reflective layer including silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chrome (Cr), or a compound thereof. The pixel electrode221may include a reflective layer including the above material and a transparent conductive layer on and/or under the reflective layer. The transparent conductive layer may include indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In2O3), indium gallium oxide (IGO), or aluminum zinc oxide (AZO). In an embodiment, the pixel electrode221may have a three-layered structure of an ITO layer/Ag layer/ITO layer that are sequentially stacked.

A pixel-defining layer119may be arranged on the pixel electrode221. The pixel-defining layer119may cover the edges of the pixel electrode221and include an opening1190P overlapping a central portion of the pixel electrode221.

The pixel-defining layer119may include an organic insulating material such as polyimide, polyamide, an acrylic resin, a benzocyclobutene, hexamethyldisiloxane (HMDSO), and a phenolic resin.

An intermediate layer222includes an emission layer222boverlapping the pixel electrode221. The emission layer222bmay include an organic material. The emission layer222bmay include a polymer organic material or a low molecular weight organic material emitting light having a predetermined color.

A first function layer222aand a second functional layer222cmay be respectively arranged under and on the emission layer222b.

The first functional layer222amay include a single layer or a multi-layer. For example, in the case where the first functional layer222aincludes a polymer material, the first functional layer222amay include a hole transport layer (HTL), which has a single-layered structure, and include poly(3,4-ethylenedioxythiophene) (PEDOT) or polyaniline (PANT). In the case where the first functional layer222aincludes a low molecular weight material, the first functional layer222amay include a hole injection layer (HIL) and a hole transport layer (HTL).

The second functional layer222cmay be omitted. For example, in the case where the first functional layer222aand the emission layer222binclude a polymer material, it may be preferable that the second functional layer222cis formed. The second functional layer222cmay include a single layer or a multi-layer. The second functional layer222cmay include an electronic transport layer (ETL) and/or an electron injection layer (EIL).

Each of the first functional layer222aand the second functional layer222cmay entirely cover the display area, for example, the first display area DA1and the second display area DA2.

An opposite electrode223may include a conductive material having a relatively small work function. For example, the opposite electrode223may include a (semi) transparent layer including silver (Ag), magnesium (Mg), aluminum (Al), nickel (Ni), chromium (Cr), lithium (Li), calcium (Ca), or an alloy thereof. Alternatively, the opposite electrode223may further include a layer including ITO, IZO, ZnO, or In2O3on the (semi) transparent layer including the above material. In an embodiment, the opposite electrode223may include silver (Ag) and magnesium (Mg).

A stacked structure of the pixel electrode221, the intermediate layer222, and the opposite electrode223that are sequentially stacked may constitute a light-emitting diode, for example, an organic light-emitting diode OLED. The organic light-emitting diode OLED may emit red, green, or blue light. An emission area of each organic light-emitting diode OLED corresponds to a pixel. For example, the first pixel P1corresponds to an emission area of an organic light-emitting diode OLED arranged in the first display area DA1, and the second pixel P2corresponds to an emission area of an organic light-emitting diode OLED arranged in the second display area DA2. Because the opening1190P of the pixel-defining layer119defines a size and/or a width of an emission area, sizes and/or widths of the first pixel P1and the second pixel P2may depend on the opening1190P of the pixel-defining layer119corresponding thereto.

The organic light-emitting diode OLED may be covered by the thin-film encapsulation layer300. The thin-film encapsulation layer300may include the first and second inorganic encapsulation layers310and330and the organic encapsulation layer320therebetween.

The first and second inorganic encapsulation layers310and330may include one or more inorganic insulating materials. The inorganic insulating material may include aluminum oxide, titanium oxide, tantalum oxide, hafnium oxide, zinc oxide, silicon oxide, silicon nitride, and/or silicon oxynitride. The first and second inorganic encapsulation layers310and330may be formed by chemical vapor deposition.

The organic encapsulation layer320may include a polymer-based material. The polymer-based material may include an acryl-based resin, an epoxy-based resin, polyimide, and polyethylene. For example, the organic encapsulation layer320may include an acrylic resin, for example, polymethylmethacrylate, poly acrylic acid, etc. The organic encapsulation layer320may be formed by hardening a monomer or coating a polymer.

Referring to the transmission area TA ofFIG. 5A, insulating layers on the substrate100may respectively include holes formed in the transmission area TA. For example, as illustrated inFIG. 5A, the gate insulating layer112, the first interlayer insulating layer113, the second interlayer insulating layer115, the first planarization layer117, the second planarization layer118, and the pixel-defining layer119each may be located in the transmission area TA and may respectively include first to sixth holes H1, H2, H3, H4, H5, and H6.

The first functional layer222aand the second functional layer222cmay cover the transmission area TA. In contrast, the opposite electrode223may include a hole223H formed in the transmission area TA to improve a transmittance of the transmission area TA.

FIG. 5Bis a cross-sectional view illustrating a portion of the display device10according to an embodiment.

FIG. 5Billustrates that the display device has substantially the same structure described with reference toFIG. 5Aand that the substrate100has a single-layered structure and the encapsulation substrate300B is arranged instead of the thin-film encapsulation layer300.

The substrate100may include a glass material and the encapsulation substrate300B may include a glass material. Each of the substrate100and the encapsulation substrate300B may include a glass substrate. An inner space IS may be defined between the substrate100and the encapsulation substrate300B. There may be an air layer in the inner space IS. Alternatively, there may be a transparent material layer in the inner space IS. The transparent material layer may include a transparent material having a refractive index similar to refractive indexes of the substrate100and the encapsulation substrate300B. The transparent material may include a liquid transparent material. The transparent material may include epoxy, urethane acrylate, epoxy acrylate or a silicon-based resin (e.g. bisphenol A type epoxy, a cycloaliphatic epoxy resin, a phenyl silicone resin or rubber, an acrylic epoxy resin, aliphatic urethane acrylate, etc.). Alternatively, for the transparent material, silicon or silicon oils with no phase change in the temperature range of about −40° C. to about 100° C. and a volume change rate within about 5% may be used, the silicon or silicon oils including hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane, and polydimethylsiloxanes.

FIG. 6is a plan view illustrating a portion of the first display area DA1of the display device10according to an embodiment, andFIG. 7is a plan view illustrating a portion of the second display area DA2of the display device10according to an embodiment.

Referring toFIG. 6, the first pixels P1are arranged in the first display area DA1. The first pixels P1may include a first red pixel Pr1, a first green pixel Pg1, and a first blue pixel Pb1. A structure of each of the first red pixel Pr1, the first green pixel Pg1, and the first blue pixel Pb1may correspond to a cross-sectional structure of the first pixel P1described above with reference toFIGS. 5A and 5B.

An array of the first pixels P1arranged in the first display area DA1may include an arrangement structure of first pixel units U1. For example, the first pixel unit U1corresponds to a minimal repeating unit. The minimal repeating unit is a repeating unit having a smallest number of pixels. For example, as illustrated inFIG. 6, a block including one first red pixel Pr1, one first green pixel Pg1, and one first blue pixel Pb1may correspond to the first pixel unit U1.

Referring toFIG. 7, the second pixels P2are arranged in the second display area DA2. The second pixels P2may include a second red pixel Pr2, a second green pixel Pg2, and a second blue pixel Pb2. A structure of each of the second red pixel Pr2, the second green pixel Pg2, and the second blue pixel Pb2may correspond to a cross-sectional structure of the second pixel P2described above with reference toFIGS. 5A and 5B.

An array of the second pixels P2arranged in the second display area DA2may include an arrangement structure of a plurality of second pixel units U2. For example, the second pixel unit U2corresponds to a minimal repeating unit. The minimal repeating unit is a repeating unit having a smallest number of pixels. For example, as illustrated inFIG. 7, a block including two second red pixels Pr2, two second green pixels Pg2, and two second blue pixels Pb2may correspond to the second pixel unit U2.

The second display area DA2may include the transmission area TA between the second pixel units U2. The transmission area TA corresponds to a region in which a pixel is not arranged, that is, a region in which a second pixel unit(s) U2is not arranged.

The number of pixels included in the second pixel unit U2may be greater than the number of pixels included in the first pixel unit U1. In an embodiment, the number of pixels included in the second pixel unit U2may be twice or more than the number of pixels included in the first pixel unit U1. For example, as illustrated inFIGS. 6 and 7, the number of pixels included in the second pixel unit U2may be six, and the number of pixels included in the first pixel unit U1may be three.

Pixels emitting light having the same color among the second pixels P2included in the second pixel unit U2, for example, the second red pixel Pr2, the second green pixel Pg2, and the third blue pixel Pb2may be arranged to neighbor each other. In the present specification, when pixels are referred to as being arranged to neighbor each other, they may be arranged close to each other, of varying distances. In the present specification, pixels may be separated from each other by various distances. As illustrated inFIG. 7, second red pixels Pr2may neighbor each other at a second distance d2, second green pixels Pg2may neighbor each other at the second distance d2, and second blue pixels Pb2may neighbor each other at the second distance d2.

A distance between neighboring pixels having the same color in the second display area DA2may be less than a distance between neighboring pixels having the same color in the first display area DA1. For example, as illustrated inFIG. 7, the second distance d2between second red pixels Pr2neighboring each other in the second display area DA2may be less than a first distance d1between first red pixels Pr1neighboring each other in the first display area DA1as illustrated inFIG. 6. Similarly, the second distance d2between second green pixels Pg2neighboring each other in the second display area DA2may be less than the first d1distance between first green pixels Pg1adjacent each other in the first display area DA1. The distance d2between second blue pixels Pb2neighboring each other in the second display area DA2may be less than the first distance d1between first blue pixels Pb1adjacent each other in the first display area DA1.

The first distance d1may correspond to a distance between same color pixels of adjacent two pixel units, such as illustrated inFIG. 6The second distance d2may correspond to distances between same color pixels in pixel unit, such as illustrated inFIG. 7.

A distance between pixels having different colors in the second display area DA2may be equal to or less than pixels having different colors in the first display area DA1. For example, as illustrated inFIG. 7, a fourth distance d4between a second red pixel Pr2and a second green pixel Pg2in the second display area DA2may be less than a third distance d3between a first red pixel Pr1and a first green pixel Pg1in the first display area DA1. Alternatively, the fourth distance d4may be equal to the third distance d3.

Similarly, a sixth distance d6between a second red pixel Pr2and a second blue pixel Pb2in the second display area DA2may be less than a fifth distance d5between a first red pixel Pr1and a first blue pixel Pb1in the first display area DA1. Alternatively, the sixth distance d6may be equal to the fifth distance d5.

A size or a shape of the first pixel P1may be different from a size or a shape of the second pixel P2. In an embodiment, it is illustrated that a size of the first pixel P1, for example, sizes of the first red pixel Pr1, the first green pixel Pg1, and the first blue pixel Pb1are different from respective sizes of the second red pixel Pr2, the second green pixel Pg2, and the second blue pixel Pb2. For example, as illustrated inFIGS. 6 and 7, a size of the first pixel P1may be greater than a size of the second pixel P2. Though it is illustrated inFIGS. 6 and 7that the first pixel P1and the second pixel P2have a quadrangular shape, the shapes thereof may be variously changed. The shape of the first pixel P1or the second pixel P2may be variously changed to a diamond shape, a circular shape, or an elliptical shape. In this case, the shape of the first pixel P1may be different from the shape of the second pixel P2.

FIG. 8is a cross-sectional view illustrating the first display area DA1taken along line VIII-VIII′ ofFIG. 6,FIG. 9is a cross-sectional view illustrating the second display area DA2taken along line IX-IX′ ofFIG. 7,FIG. 10Ais a plan view illustrating the emission layer and the opposite electrode ofFIG. 8, andFIG. 10Bis a plan view illustrating the emission layer and the opposite electrode ofFIG. 9.

Referring toFIGS. 8 and 9, pixel circuits PC are arranged on the substrate100, and each of the pixel circuits PC is electrically connected to an organic light-emitting diode OLED arranged on the pixel circuit PC. A structure of insulating layers arranged on the pixel circuit PC, the organic light-emitting diode OLED, and the substrate100is substantially the same as that described above with reference toFIG. 5A. As illustrated inFIG. 9, the bottom metal layer BML may be arranged in the second display area DA2. The bottom metal layer BML may correspond to at least one pixel circuit PC. For example, as illustrated inFIG. 9, a plurality of pixel circuits PC may overlap the bottom metal layer BML.

A pixel may correspond to an emission area of light emitted from the organic light-emitting diode OLED. As illustrated inFIGS. 8 and 9, the emission area of the organic light-emitting diode OLED may be defined by an opening1190P of the pixel-defining layer119, and thus a distance between pixels is substantially the same as a distance between the openings1190P of the pixel-defining layer119corresponding to the relevant pixel.

The first distance d1between first red pixels Pr1neighboring each other in the first display area DA1ofFIG. 8may be greater than the second distance d2between second red pixels Pr2neighboring each other in the second display area DA2ofFIG. 9. Similarly, a first separation distance L1between the pixel electrodes221corresponding to the first red pixels Pr1neighboring each other in the first display area DA1may be greater than a second separation distance L2between the pixel electrodes221corresponding to the second red pixels Pr2neighboring each other in the second display area DA2. The first separation distance L1may be less than the first distance d1, and the second separation distance L2may be less than the second distance d2.

A third distance d3between the first red pixel Pr1and the first green pixel Pg1neighboring each other in the first display area DA1ofFIG. 8may be equal to or greater than the fourth distance d4between the second red pixel Pr2and the second green pixel Pg2neighboring each other in the second display area DA2ofFIG. 9. Similarly, a third separation distance L3between the pixel electrodes221corresponding to the first red pixel Pr1and the first green pixel Pg1neighboring each other in the first display area DA1may be equal to or greater than a fourth separation distance L4between the pixel electrodes221corresponding to the second red pixel Pr2and the second green pixel Pg2neighboring each other in the second display area DA2. The third separation distance L3may be less than the third distance d3, and the fourth separation distance L4may be less than the fourth distance d4.

A pixel having a different color may be arranged between pixels having the same color and neighboring each other in the first display area DA1. For example, as illustrated inFIGS. 6 and 8, the first green pixel Pg1may be arranged between the first red pixels Pr1neighboring each other. Therefore, one emission layer may correspond to each pixel in the first display area DA1.

For example, as illustrated inFIGS. 8 and 10A, a red emission layer222brmay correspond to one first red pixel Pr1. Likewise, a green emission layer222bgmay correspond to one first green pixel Pg1, and a blue emission layer222bbmay correspond to one first blue pixel Pb1.

Unlike the red emission layer222br, the green emission layer222bg, and the blue emission layer222bbeach corresponding to one pixel, the opposite electrode223may be formed as one body to cover a plurality of pixels.

Alternatively, a pixel having a different color may not be arranged between pixels having the same color neighboring each other in the second display area DA2. Referring toFIGS. 7 and 9, a different pixel is not arranged between second red pixels Pr2neighboring each other in a second pixel unit U2(seeFIG. 7). Therefore, one emission layer may correspond to a plurality of pixels in the second display area DA2.

For example, as illustrated inFIGS. 9 and 10B, the red emission layer222brmay correspond to two second red pixels Pr2. The red emission layer222brmay cover a top surface of a portion119P of the pixel-defining layer119located between the openings1190P defining the two second red pixels Pr2. Similarly, as illustrated inFIG. 10B, the green emission layer222bgmay correspond to two second green pixels Pg2, and the blue emission layer222bbmay correspond to two second blue pixels Pb2in the x-direction. Alternatively, as illustrated inFIG. 10B, the blue emission layer222bbmay be formed as one body to correspond to second blue pixels Pb2of two columns arranged in an x-direction and y-direction.

As illustrated inFIG. 10B, the opposite electrode223does not cover a region corresponding to the transmission area TA. With regard to this, it is illustrated inFIG. 10Bthat the opposite electrode223includes a hole223H located in the transmission area TA.

The hole223H of the opposite electrode223may be formed as follows. The hole223H of the opposite electrode223may be formed by forming the opposite electrode223to entirely cover the first display area DA1and the second display area DA2, and then removing a region corresponding to the hole223H. The region corresponding to the hole223H may be removed by using a laser, etc. Alternatively, the opposite electrode223may be deposited by using a mask including a shield portion arranged in the region corresponding to the hole223H. Because a region of the mask that is around the shield portion is an opening, the opposite electrode223may be deposited in the first display area DA1and a portion of the second display area DA2while a deposition material passes through the opening of the mask. Because the transmission area TA is shielded by the shield portion during a deposition process, the hole223may be formed in the transmission area TA.

During the deposition process, an issue may occur in which the deposition material is accumulated in a region of an object (e.g. the substrate ranging from the buffer layer to the intermediate layer) on which the deposition material is deposited, by a shadow phenomenon, the region corresponding to the shield portion of the mask. The above issue may be related to a transmittance of the transmission area TA and an area of the transmission area TA. Because the second display area DA2includes the transmission area TA, the holes223H of the opposite electrodes223should be arranged between pixels. As the number of holes223H increases, the shadow phenomenon may occur more. A small number of pixels may be arranged in the second display area DA2to secure a sufficient transmission area TA while taking into account the shadow phenomenon. In this case, the resolution of the second display area DA2may be reduced.

However, according to the embodiments, as described above with reference toFIGS. 6 to 10B, because the second pixel unit U2includes a greater number of pixels than the first pixel unit U1, the reduction of the resolution may be minimized in the second display area.

FIG. 11is a plan view illustrating a portion of the first display area DA1of the display device according to an embodiment, andFIG. 12is a plan view illustrating a portion of the second display area DA2of the display device according to an embodiment. Referring toFIGS. 11 and 12, it is illustrated that pixels are arranged in a pentile configuration.

Referring toFIG. 11, the first pixel unit U1of the first display area DA1may include four pixels. For example, the first pixel unit U1may include one first red pixel Pr1, two first green pixels Pg1, and one first blue pixel Pb1.

Referring toFIG. 12, the second pixel unit U2of the second display area DA2may include a greater number of pixels than the number of pixels included in the first pixel unit U1. For example, as illustrated inFIG. 12, the second pixel unit U2may include eight pixels including two second red pixels Pr2, four second green pixels Pg2, and two second blue pixels Pb2.

Pixels emitting the same color among the second pixels included in the second pixel unit U2, for example, the second red pixels Pr2, the second green pixels Pg2, and the second blue pixels Pb2may neighbor each other. As illustrated inFIG. 12, two second red pixels Pr2may neighbor each other, and two second green pixels Pg2may neighbor each other. Other two second green pixels Pg2may neighbor each other, and other two second blue pixels Pb2may neighbor each other. Though it is illustrated inFIG. 12that two second green pixels Pg2and other two second green pixels Pg2neighbor each other in the y-direction, two second green pixels Pg2and other two second green pixels Pg2in the second pixel unit U2may be arranged in an oblique direction (e.g. a diagonal direction ob) with respect to the x-direction and the y-direction in another embodiment.

A distance between pixels having the same color and neighboring each other in the second display area DA2may be less than a distance between pixels having the same color and neighboring each other in the first display area DA1. For example, as illustrated inFIG. 12, a second distance d2′ between second green pixels Pg2neighboring each other in the second display area DA2may be less than a first distance d1′ between first green pixels Pg1neighboring each other in the first display area DA1as illustrated inFIG. 11. Similarly, a distance between second red pixels Pr2neighboring each other in the second display area DA2may be less than a distance between first red pixels Pr1neighboring each other in the first display area DA1. A distance between second blue pixels Pb2neighboring each other in the second display area DA2may be less than a distance between first blue pixels Pb1neighboring each other in the first display area DA1.

A distance between pixels having different colors and neighboring each other in the second display area DA2may be equal to or less than a distance between pixels having different colors and neighboring each other in the first display area DA1. For example, as illustrated inFIG. 12, a fourth distance d4′ between a second red pixel Pr2and a second green pixel Pg2neighboring each other in the second display area DA2may be less than a third distance d3′ between a first red pixel Pr1and a first green pixel Pg1neighboring each other in the first display area DA1. Alternatively, the fourth distance d4′ may be equal to the third distance d3′.

Similarly, a sixth distance d6′ between a second red pixel Pr2and a second blue pixel Pg2neighboring each other in the second display area DA may be less than a fifth distance d5′ between a first red pixel Pr1and a first blue pixel Pb1neighboring each other in the first display area DA1. Alternatively, the sixth distance d6′ may be equal to the fifth distance d5′.

FIG. 13is a plan view illustrating a portion of the first display area DA1of the display device according to an embodiment, andFIG. 14is a plan view illustrating a portion of the second display area DA2of the display device according to an embodiment.FIGS. 13 and 14illustrate that pixels are arranged in a pentile type, for example, a diamond pentile type.

Referring toFIG. 13, a first pixel unit U1of the first display area DA1may include four pixels. For example, the first pixel unit U1may include one first red pixel Pr1, two first green pixels Pg1, and one first blue pixel Pb1. The one first red pixel Pr1and the one first green pixel Pg1may be arranged in a direction (e.g. a diagonal direction) oblique with respect to the x-direction and the y-direction, and the first blue pixel Pb1and another first green pixel Pg1may be arranged in a direction (e.g. a diagonal direction) with respect to the x-direction and the y-direction.

Referring toFIG. 14, the second pixel unit U2of the second display area DA2may include a greater number of pixels than the number of pixels included in the first pixel unit U1. For example, as illustrated inFIG. 14, the second pixel unit U2may include two second red pixels Pr2, four second green pixels Pg2, and two second blue pixels Pb2.

Pixels emitting light of the same color among the second pixels P2included the second pixel unit U2, for example, the second red pixels Pr2, the second green pixels Pg2, and the second blue pixels Pb2may be arranged to neighbor each other. As illustrated inFIG. 14, two second red pixels Pr2may neighbor each other, and two second green pixels Pg2may neighbor each other. Other two second green pixels Pg2may neighbor each other, and other two second blue pixels Pb2may neighbor each other. Two second red pixels Pr2and two second green pixels Pg2may be arranged in a direction (e.g. a diagonal direction ob) oblique with respect to the x-direction and the y-direction, and two second blue pixels Pb2and other two second green pixels Pg2may be arranged in a direction (e.g. a diagonal direction ob) oblique with respect to the x-direction and the y-direction.

A distance between pixels having the same color and neighboring each other in the second display area DA2may be less than a distance between pixels having the same color and neighboring each other in the first display area DA1. For example, as illustrated inFIG. 14, a second distance d2″ between second green pixels Pg2neighboring each other in the second display area DA2may be less than a first distance d1″ between first green pixels Pg1neighboring each other in the first display area DA1as illustrated inFIG. 13. Similarly, a distance between second red pixels Pr2neighboring each other in the second display area DA2may be less than a distance between first red pixels Pr1neighboring each other in the first display area DA1. A distance between second blue pixels Pb2neighboring each other in the second display area DA2may be less than a distance between first blue pixels Pb1neighboring each other in the first display area DA1.

A distance between pixels having different colors and neighboring each other in the second display area DA2may be equal to or less than a distance between pixels having different colors and neighboring each other in the first display area DA1. For example, as shown inFIG. 14, a fourth distance d4″ between a second red pixel Pr2and a second green pixel Pg2neighboring each other in the second display area DA2may be less than a third distance d3″ between a first red pixel Pr1and a first green pixel Pg1neighboring each other in the first display area DA1. Alternatively, the fourth distance d4″ may be equal to the third distance d3″.

Similarly, a sixth distance d6″ between a second green pixel Pg2and a second blue pixel Pb2neighboring each other in the second display area DA2may be less than a fifth distance d5″ between a first green pixel Pg1and a first blue pixel Pb1neighboring each other in the first display area DA1. Alternatively, the sixth distance d6″ may be equal to the fifth distance d5″.

The second display area DA2may include the transmission area TA, and some of the transmission areas TA may neighbor each other in the x-direction and the y-direction. Other transmission areas TA may neighbor each other and be arranged in a direction oblique with respect to the x-direction and the y-direction. The arrangement of the transmission area TA is equally applicable to the second display area DA2described with reference toFIG. 12 or 7.

Embodiments may provide a display device and an electronic apparatus in which a component such as a sensor or a camera may be arranged while securing a wide area of a display area displaying an image. Embodiments may also provide a display device and an electronic apparatus that may prevent resolution reduction while securing a sufficient transmission area for the component. These effects are provided as examples and the scope of the inventive concepts is not limited by these effects.