Indication device

Abstract

To provide a display device capable of controlling or cutting off a viewing angle without pasting a light control film on a panel surface.SOLUTION: A display device is provided, comprising: a substrate having a display area including a light emitting area and a non-light emitting area, and a non-display area; a plurality of barrier layers disposed the non-light emitting area; and at least one lens disposed on the plurality of barrier layers to overlap the light emitting area.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present specification relates to a display device. [Background technology]

[0002] 2. Description of the Related Art As display device technology advances, various display devices, such as liquid crystal displays (LCDs) and organic light emitting displays (OLEDs), have been developed.

[0003] 2. Description of the Related Art Display devices that can recognize user touches in addition to displaying images are increasingly being used, and display devices incorporating a touch-sensing layer are being developed.

[0004] Meanwhile, display devices are also used in vehicles such as automobiles to provide various information. For example, to prevent the image on the display device from being reflected on the windshield of a car and obstructing the view while driving, a separate light control film that can block light emitted upward and control or cut off the viewing angle is attached to the surface of the display device panel. However, the attachment of such a light control film can cause problems such as reduced brightness and reduced touch sensitivity of the display device. Summary of the Invention [Problem to be solved by the invention]

[0005] The inventors of the present invention have invented a display device that can control or cut off the viewing angle without attaching a light control film to the surface of the panel.

[0006] An object of the present specification is to provide a display device that can control or cut off the viewing angle and can improve the front brightness through improvement of the light collection efficiency.

[0007] Another object of the present disclosure is to provide a display device that can control or cut-off the viewing angle without reducing touch sensitivity.

[0008] The object of the present specification is not limited to the object mentioned above, and other unmentioned objects and advantages of the present invention can be understood from the following description and will be more clearly understood from the examples of the present specification. Furthermore, it will be easily understood that the object and advantages of the present specification can be realized by the means and combinations thereof as claimed. [Means for solving the problem]

[0009] The display device according to the present specification may include a display area including a light-emitting area and a non-light-emitting area, a substrate including a non-display area, a plurality of barrier layers disposed in the non-light-emitting area, and at least one lens disposed on the plurality of barrier layers and overlapping the light-emitting area.

[0010] Other specific details of the embodiments are included in the detailed description and drawings.

[0011] According to the embodiments of the present specification, by disposing a light control layer including at least one lens and a barrier layer on an encapsulation layer covering an organic light emitting device, it is possible to control or cut off the vertical and / or horizontal viewing angles, and improve the front brightness through improved light collection efficiency.

[0012] Furthermore, according to the embodiments of the present specification, power consumption can be reduced by improving the front brightness.

[0013] The effects of the present specification are not limited to the above-mentioned examples, and various other effects are included within the present specification. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is an example of a display device according to a first embodiment of the present specification. [Figure 2] 1 is a perspective view of a display device according to a first embodiment of the present specification. [Figure 3] 1 is a block diagram of a display device according to a first embodiment of the present specification. [Figure 4] 1 is a plan view of a display device according to a first embodiment of the present specification. [Figure 5] FIG. 2 is a plan view showing a touch sensing layer according to a first embodiment of the present specification. [Figure 6] FIG. 2 is an enlarged plan view showing a touch electrode according to a first embodiment of the present specification. [Figure 7] 5 is a cross-sectional view taken along lines II' and II-II' in FIG. 4. [Figure 8] FIG. 7 is an enlarged cross-sectional view of area 7A of FIG. [Figure 9] FIG. 8 is an enlarged cross-sectional view illustrating the lens of FIG. 7 according to the first embodiment of the present specification. [Figure 10] 9 is a graph showing normalized light intensity according to the viewing angle of FIGS. 7 and 8 in the first example of the present specification. [Figure 11] FIG. 10 is a cross-sectional view showing a display device according to a second embodiment of the present specification. [Figure 12] FIG. 11 is an enlarged cross-sectional view of region 11A of FIG. 11 according to a second embodiment of the present specification. [Figure 13] 13 is a graph showing normalized light intensity according to the viewing angle of FIGS. 11 and 12 in a second example of the present specification. [Figure 14] FIG. 10 is a cross-sectional view showing a display device according to a third embodiment of the present specification. [Figure 15] FIG. 14 is an enlarged cross-sectional view of region 14A of FIG. 14 according to a third embodiment of the present specification. [Figure 16] 16 is a graph showing normalized light intensity according to the viewing angle of FIGS. 14 and 15 in a third example of the present specification. [Figure 17] FIG. 10 is a cross-sectional view showing a display device according to a fourth embodiment of the present specification. [Figure 18] FIG. 10 is a cross-sectional view showing a display device according to a fifth embodiment of the present specification. DETAILED DESCRIPTION OF THE INVENTION

[0015] The terms used in the embodiments are currently commonly used and general terms that have been selected as much as possible while taking into consideration the functions in the present disclosure, but these may change depending on the intentions of those skilled in the art, precedents, the emergence of new technologies, etc. In addition, in certain cases, the applicant may arbitrarily select terms, and in such cases, the meanings thereof will be described in detail in the relevant explanation section. Therefore, the terms used in the present disclosure should be defined based on the meanings of the terms and the overall content of the present disclosure, rather than simply by the names of the terms.

[0016] Throughout the specification, when a part "comprises" a certain element, this does not mean excluding other elements, but may further include other elements, unless otherwise specified.

[0017] The expression "at least one of a, b, and c" used throughout the specification can encompass "a alone," "b alone," "c alone," "a and b," "a and c," "b and c," or "all of a, b, and c." The advantages and features of the present invention, and methods for achieving them, will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings.

[0018] The shapes, areas, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments in this specification are merely examples, and the embodiments of this specification are not limited to those shown in the drawings. Furthermore, in the description of the embodiments, if it is determined that a detailed description of related publicly known technology may unnecessarily obscure the gist of the embodiments, the detailed description will be omitted.

[0019] When the terms "comprise," "have," "consist of," etc. are used in this specification, other parts may be added. When an element is expressed in the singular, it also includes the plural unless otherwise expressly stated. In addition, when interpreting an element, it is interpreted as including a margin of error even if there is no other express description.

[0020] When describing a positional relationship, for example, when the positional relationship between two parts is described using terms such as "above," "on top," "below," or "beside," one or more other parts may be located between the two parts. When an element or layer is referred to as "on" another element or layer, this includes all cases where the element or layer is directly on top of the other element or has another layer or element interposed therebetween.

[0021] Furthermore, although terms such as "first," "second," etc. are used to describe various components, these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, a first component referred to below may be a second component within the technical concept of the present invention.

[0022] The area, length, or thickness of each component described in the specification is illustrated for convenience of explanation, and the present invention is not necessarily limited to the area and thickness of the illustrated components.

[0023] The features of the various embodiments of this specification may be partially or fully combined or combined with each other, and various technical interlocking and driving mechanisms are possible, and each embodiment may be implemented independently of each other or together in a related relationship.

[0024] The terms described below are defined in consideration of the functions in the implementation of this specification, and may vary depending on the intentions or practices of users or operators. Therefore, the definitions should be based on the overall content of this specification.

[0025] Hereinafter, examples of the present specification will be described with reference to the drawings.

[0026] FIG. 1 is an example of the interior of a vehicle equipped with a display device according to a first embodiment of the present specification, FIG. 2 is a perspective view of the display device according to the first embodiment of the present specification, and FIG. 3 is a block diagram of the display device according to the first embodiment of the present specification.

[0027] The display device 100 may be disposed in at least a portion of a vehicle dashboard. The vehicle dashboard includes a configuration disposed in front of the front seats (e.g., driver's seat, passenger seat) of the vehicle. For example, the vehicle dashboard may include an input configuration for operating various functions inside the vehicle (e.g., air conditioning, audio system, navigation system).

[0028] In an embodiment, the display device 100 is disposed on the dashboard of a vehicle and can operate as an input unit for operating at least some of the various functions of the vehicle. The display device 100 can provide various information related to the vehicle, such as vehicle operation information (e.g., current vehicle speed, remaining fuel amount, mileage) and information on vehicle parts (e.g., damage level of vehicle tires).

[0029] In an embodiment, the display device 100 may be disposed across the driver's seat and passenger seat, which are disposed in the front seats of a vehicle. Users of the display device 100 may include the driver of the vehicle and a passenger sitting in the passenger seat. Both the driver and passenger of the vehicle may use the display device 100.

[0030] In the embodiment, only a portion of the display device 100 illustrated in Fig. 1 may be shown. The display device 100 illustrated in Fig. 1 may represent a display panel among various components included in the display device 100. Components of the display device 100 other than those illustrated in Fig. 1 may be implemented (or at least partially implemented) inside a vehicle.

[0031] 2 and 3, a display device 100 according to an embodiment of the present specification includes a display panel 110, a scan driver 120, a data driver 130, a timing controller 160, a host system 170, a touch driver 180, and a touch coordinate calculation unit 190.

[0032] In this specification, the display device will be described as an organic light emitting display (OLED) as an example, but is not limited thereto and may be embodied as various display devices such as a liquid crystal display (LCD).

[0033] The display panel 110 may include a first substrate 111, a second substrate 112, a thin film transistor layer, a light emitting element layer, an encapsulation layer, and a touch sensing layer disposed between the first and second substrates 111 and 112, although the embodiments of the present specification are not limited thereto. The second substrate 112 may be a plastic film, a glass substrate, or an encapsulation film.

[0034] The display panel 110 includes a display area where a plurality of pixels P are provided to display an image. Data lines (D1 to Dm, m is a positive integer of 2 or more) and scan lines (S1 to Sn, n is a positive integer of 2 or more) are formed on the display panel 110. The data lines D1 to Dm may be formed to intersect with the scan lines S1 to Sn. The scan lines may be gate lines. The pixels P may be formed in an area defined by the intersection of the scan lines and the data lines.

[0035] Each pixel P of the display panel 110 may be connected to one of the data lines D1 to Dm and one of the scan lines S1 to Sn.

[0036] Each pixel P of the display panel 110 may include a drive transistor that adjusts a drain-source current according to a data voltage applied to a gate electrode, a scan transistor that is turned on by a scan signal of a scan line and supplies a data voltage of the data line to the gate electrode of the drive transistor, an organic light emitting diode that emits light according to the drain-source current of the drive transistor, and a capacitor that stores the voltage of the gate electrode of the drive transistor, thereby allowing each pixel P to emit light according to the current supplied to the organic light emitting diode.

[0037] The scan driver 120 receives a scan control signal GCS from the timing controller 160. The scan driver 120 supplies scan signals to the scan lines S1 to Sn in response to the scan control signal GCS.

[0038] The scan driver 120 may be formed in a gate driver in panel (GIP) manner in a non-display area on one or both sides of the display area of ​​the display panel 110. Alternatively, the scan driver 120 may be fabricated as a driver chip, mounted on a flexible film, and attached to the non-display area on one or both sides of the display area of ​​the display panel 110 in a tape automated bonding (TAB) manner.

[0039] The data driver 130 receives digital video data (DATA) and a data control signal DCS from the timing controller 160. The data driver 130 converts the digital video data (DATA) into analog positive / negative data voltages in response to the data control signal DCS and supplies the converted data voltages to the data lines. For example, pixels to which the data voltages are to be supplied are selected by the scan signal of the scan driver 120, and the data voltages are supplied to the selected pixels.

[0040] The data driver 130 may include a plurality of source drive ICs 131 as shown in Fig. 2. Each of the plurality of source drive ICs 131 may be mounted on a flexible film 140 using a chip on film (COF) or chip on plastic (COP) method. The flexible film 140 is attached to pads provided in the non-display area of ​​the display panel 110 using an anisotropic conducting film, so that the plurality of source drive ICs 131 may be connected to the pads.

[0041] The circuit board 150 may be attached to the flexible film 140. The circuit board 150 may have a number of circuits implemented as driver chips mounted thereon. For example, the timing controller 160 may be mounted on the circuit board 150. The circuit board 150 may be a printed circuit board or a flexible printed circuit board.

[0042] The timing controller 160 receives digital video data (DATA) and timing signals from the host system 170. The timing signals may include a vertical synchronization signal, a horizontal synchronization signal, a data enable signal, a dot clock, etc. The vertical synchronization signal defines one frame period. The horizontal synchronization signal defines one horizontal period required to supply data voltages to the pixels of one horizontal line of the display panel 110. The data enable signal defines the period during which valid data is input. The dot clock is a signal that repeats at a predetermined short period.

[0043] The timing controller 160 generates a data control signal DCS for controlling the operation timing of the data driver 130 and a scan control signal GCS for controlling the operation timing of the scan driver 120 based on the timing signal to control the operation timing of the scan driver 120. The timing controller 160 outputs the scan control signal GCS to the scan driver 120 and outputs digital video data (DATA) and the data control signal DCS to the data driver 130.

[0044] The host system 170 may be embodied as a navigation system, a set-top box, a DVD player, a Blu-ray player, a personal computer (PC), a home theater system, a broadcast receiver, a phone system, etc. The host system 170 includes a system on chip (SoC) with a built-in scaler and converts the digital video data (DATA) of the input image into a format suitable for display on the display panel 110. The host system 170 transmits the digital video data (DATA) and a timing signal to the timing controller 160.

[0045] In addition to the data lines D1 to Dm and the scan lines S1 to Sn, first and second touch electrodes may be formed on the display panel 110. The first touch electrodes may be formed to intersect with the second touch electrodes. The first touch electrodes may be connected to the first touch driver 181 through first touch lines (T1 to Tj, j is a positive integer of 2 or more). The second touch electrodes may be connected to the second touch driver 182 through second touch lines (R1 to Ri, i is a positive integer of 2 or more). A touch sensor may be formed at each intersection of the first touch electrode and the second touch electrode. In the embodiments of the present specification, the touch sensor is embodied as a mutual capacitance, but is not limited thereto.

[0046] The touch driver 180 supplies driving pulses to the first touch electrodes through the first touch lines T1 to Tj and senses the charge change amount of each touch sensor through the second touch lines R1 to Ri. Referring to FIG. 2, the first touch lines T1 to Tj are Tx lines that supply driving pulses, and the second touch lines R1 to Ri are Rx lines that sense the charge change amount of each touch sensor.

[0047] The touch driver 180 includes a first touch driver 181, a second touch driver 182, and a touch controller 183. The first touch driver 181, the second touch driver 182, and the touch controller 183 may be integrated into one ROIC (Read-out IC).

[0048] The first touch driver 181 selects a first touch line to which a driving pulse is to be output under the control of the touch controller 183, and supplies the driving pulse to the selected first touch line. For example, the first touch driver 181 can sequentially supply driving pulses to the first touch lines T1 to Tj.

[0049] The second touch driver 182 selects a second touch line that receives the charge change amount of the touch sensor under the control of the touch controller 183, and receives the charge change amount of the touch sensor through the selected second touch line. The second touch driver 182 samples the charge change amount of the touch sensor received through the second touch lines R1 to Ri, and converts it into touch raw data (TRD), which is digital data.

[0050] The touch controller 183 may generate a Tx setup signal for setting a first touch line through which a driving pulse is output in the first touch driver 181 and an Rx setup signal for setting a second touch line through which a touch sensor voltage is received in the second touch driver 182. In addition, the touch controller 183 generates a timing control signal for controlling the operation timing of the first touch driver 181 and the second touch driver 182.

[0051] The touch coordinate calculation unit 190 receives touch row data (TRD) from the touch driver 180. The touch coordinate calculation unit 190 calculates touch coordinates (α) according to a touch coordinate calculation method, and outputs touch coordinate data (HIDxy) including information on the touch coordinates (α) to the host system 170.

[0052] The touch coordinate calculation unit 190 may be implemented as a Micro Controller Unit (MCU). The host system 170 analyzes the touch coordinate data (HIDxy) input from the touch coordinate calculation unit 190 and executes an application program associated with the coordinates where the user's touch occurred. The host system 170 transmits digital video data (DATA) and timing signals to the timing controller 160 according to the executed application program.

[0053] The touch driver 180 may be included in the source driver IC 131 or may be manufactured as a separate driver chip and mounted on the circuit board 150. The touch coordinate calculator 190 may be manufactured as a driver chip and mounted on the circuit board 150.

[0054] A display device according to an embodiment of the present specification will be described below with reference to FIGS.

[0055] FIG. 4 is a plan view of a display device according to a first embodiment of the present specification.

[0056] FIG. 5 is a plan view of an example of a touch sensing layer according to a first embodiment of the present disclosure.

[0057] FIG. 6 is an enlarged plan view of a touch electrode according to a first embodiment of the present specification.

[0058] FIG. 7 is a cross-sectional view taken along lines II' and II-II' in FIG.

[0059] FIG. 8 is an enlarged cross-sectional view of area 7A of FIG.

[0060] The first substrate 111 may include a display area DA and a non-display area NDA. The first substrate 111 may be made of a glass material or a flexible plastic material such as polyimide, but the embodiments of the present specification are not limited thereto.

[0061] The non-display area (NDA) may include a pad area (PA) where a pad (PAD) is formed and a dam (DAM). In this case, a plurality of dams (DAM) may be formed, and each dam (DAM) may be formed in a different layer.

[0062] In the display area DA of the first substrate 111, a thin film transistor layer and a light emitting element layer are formed.

[0063] The thin film transistor layer includes a thin film transistor 210 , a gate insulating layer 220 , an interlayer insulating layer 230 , a passivation layer 240 and a first planarization layer 250 .

[0064] A buffer layer 113 may be formed on the first substrate 111. The buffer layer 113 is formed on the first substrate 111 to protect the thin film transistor 210 and the light emitting element 260 from moisture that may penetrate through the first substrate 111, which is susceptible to moisture permeation. One surface of the first substrate 111 may be a surface facing the second substrate 112. The buffer layer 113 may be made of a plurality of inorganic layers alternately stacked. For example, the buffer layer 113 may be formed of a multilayer structure in which one or more inorganic layers selected from the group consisting of silicon dioxide (SiOx), silicon nitride (SiNx), and SiON are alternately stacked, but the embodiments of the present specification are not limited thereto.

[0065] A thin film transistor 210 is formed on the buffer layer 113. The thin film transistor 210 includes an active layer 211, a gate electrode 212, a source electrode 213, and a drain electrode 214. In this specification, the thin film transistor 210 is formed in a top gate manner in which the gate electrode 212 is located on the active layer 211, but is not limited thereto, and the thin film transistor 210 may be formed in a bottom gate manner or a double gate manner.

[0066] An active layer 211 is formed on the buffer layer 113. The active layer 211 may be formed of an oxide semiconductor material such as, but not limited to, IGZO (Indium Gallium Zinc Oxide), and may also be formed of low temperature polycrystalline silicon (LTPS) or amorphous silicon (a-Si).

[0067] A light-shielding layer for blocking external light incident on the active layer 211 may be formed between the buffer layer 113 and the active layer 211 .

[0068] A gate insulating layer 220 capable of insulating the active layer 211 and the gate electrode 212 from each other may be formed on the active layer 211. Although the present specification illustrates an example in which the gate insulating layer 220 is formed over the entire first substrate 111, the present specification is not limited thereto, and the gate insulating layer 220 may be formed only under the gate electrode 212. The gate insulating layer 220 may be formed of an inorganic layer, for example, a silicon oxide (SiOx) layer, a silicon nitride (SiNx) layer, or a multilayer thereof, and the present specification is not limited thereto.

[0069] A gate electrode 212 and a gate line (not shown) may be formed on the gate insulating layer 220. The gate electrode 212 and the gate line may be formed of a single layer or multiple layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof, but the embodiments of the present specification are not limited thereto.

[0070] An interlayer insulating layer 230 may be formed on the gate electrode 212 and the gate line. The interlayer insulating layer 230 may be formed of an inorganic film, such as a silicon oxide film (SiOx), a silicon nitride film (SiNx), or a multilayer thereof, but the embodiments of the present specification are not limited thereto.

[0071] A source electrode 213, a drain electrode 214, and a data line (not shown) may be formed on the interlayer insulating layer 230. The source electrode 213 and the drain electrode 214 may be connected to the active layer 211 through contact holes penetrating the gate insulating layer 220 and the interlayer insulating layer 230. The source electrode 213, the drain electrode 214, and the data line may be formed of a single layer or multiple layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof, but the embodiments of the present specification are not limited thereto.

[0072] A passivation layer 240 for insulating the thin film transistor 210 may be formed on the source electrode 213, the drain electrode 214, and the data line. The passivation layer 240 may be formed of an inorganic film, such as a silicon oxide film (SiOx), a silicon nitride film (SiNx), or a multi-layer film thereof, but the embodiments of the present specification are not limited thereto.

[0073] A first planarization layer 250 capable of planarizing steps caused by the thin film transistor 210 may be formed on the passivation layer 240. The first planarization layer 250 may be formed of an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin, but the embodiments of the present specification are not limited thereto.

[0074] A light emitting element layer is formed on the thin film transistor layer, and includes a light emitting element 260 and a bank layer 270.

[0075] For example, a plurality of light-emitting elements can be arranged in the display area DA.

[0076] The light-emitting element 260 and the bank layer 270 are formed on the first planarization layer 250. The light-emitting element (light-emitting diode) 260 includes a first electrode 261, an organic light-emitting layer 262, and a second electrode 263. The first electrode 261 can be an anode electrode, and the second electrode 263 can be a cathode electrode.

[0077] The first electrode 261 may be formed on the first planarization layer 250. The first electrode 261 is connected to the source electrode 213 of the thin film transistor 210 through a contact hole penetrating the passivation layer 240 and the first planarization layer 250. The first electrode 261 may be formed of a metal material with high reflectivity, such as an aluminum and titanium stacked structure (Ti / Al / Ti), an aluminum and ITO stacked structure (ITO / Al / ITO), an APC alloy, and an APC alloy and ITO stacked structure (ITO / APC / ITO), but the embodiments of the present specification are not limited thereto. The APC alloy is an alloy of silver (Ag), palladium (Pd), and copper (Cu).

[0078] The bank layer 270 may be formed on the first planarization layer 250 to cover the edges of the first electrodes 261 in order to define the pixels P. For example, the bank layer 270 may be a pixel defining film that defines the pixels P. For example, the bank layer 270 may be arranged to have a plurality of openings, and the openings may correspond to the light-emitting areas EA of the light-emitting elements 260.

[0079] The bank layer 270 may be formed of an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin, and the examples of this specification are not limited thereto.

[0080] An organic light-emitting layer 262 is formed on the first electrode 261 and the bank layer 270. The organic light-emitting layer 262 may include a hole transporting layer, at least one light-emitting material layer, and an electron transporting layer, although the embodiments of the present specification are not limited thereto. In this case, when a voltage is applied to the first electrode 261 and the second electrode 263, holes and electrons move to the light-emitting material layer through the hole transporting layer and the electron transporting layer, respectively, and combine with each other in the light-emitting material layer to emit light.

[0081] The organic light-emitting layer 262 may be a white light-emitting layer that emits white light. The organic light-emitting layer 262 may be formed to cover the first electrode 261 and the bank layer 270.

[0082] The second electrode 263 is formed on the organic light emitting layer 262. When the display device 100 is formed in a top emission structure, the second electrode 263 may be formed of a transparent metal material (TCO, Transparent Conductive Material) such as ITO or IZO that can transmit light, or a semi-transmissive metal material (TCO, Transparent Conductive Material) such as magnesium (Mg), silver (Ag), or an alloy of magnesium (Mg) and silver (Ag), but the embodiments of the present specification are not limited thereto.

[0083] A sealing layer 280 is formed to cover the plurality of light emitting elements 260, extending not only over the display area DA of the first substrate 111 but also over the non-display area NDA.

[0084] The encapsulation layer 280 serves to prevent oxygen or moisture from penetrating into the organic light-emitting layer 262 and the second electrode 263. To this end, the encapsulation layer 280 may include at least one inorganic film and at least one organic film. For example, the encapsulation layer 280 may include a first inorganic encapsulation film 281, an organic encapsulation film 282, and a second inorganic encapsulation film 283.

[0085] A first inorganic sealing film 281 may be disposed on the second electrode 263. The first inorganic sealing film 281 may be formed to cover the second electrode 263. An organic sealing film 282 may be disposed on the first inorganic sealing film 281. The organic sealing film 282 may be formed to a thickness sufficient to prevent particles from penetrating the first inorganic sealing film 281 and entering the organic light-emitting layer 262 and the second electrode 263. A second inorganic sealing film 283 may be disposed on the organic sealing film 282. The second inorganic sealing film 283 may be formed to cover the organic sealing film 282.

[0086] The first and second inorganic sealing films 281, 283 may each be formed of silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, or titanium oxide, and examples of the present specification are not limited thereto.

[0087] The organic sealing film 282 may be formed to include an acrylic resin or an epoxy resin.

[0088] The display device 100 may include a dam (DAM) having a closed curve shape and disposed in the non-display area NDA to surround the organic encapsulation layer 282. The dam (DAM) is formed to surround the outer periphery of the display area DA and can block the flow of the organic encapsulation layer 282 that constitutes the encapsulation layer 280. Thus, the dam (DAM) can prevent the organic encapsulation layer 282 from being exposed to the outside of the display device 100 or from invading the pad area PA.

[0089] The dam (DAM) may be formed as a single dam, but forming multiple dams (DAM) can more effectively block the flow of the organic sealing film 282. Although the present specification illustrates the case where two dams (DAM) are formed as shown in FIG. 7, the present invention is not limited to this.

[0090] Such a dam (DAM) may be formed simultaneously with the first planarization layer 250 or the bank layer 270 of the pixel P, and may be made of the same material as the first planarization layer 250 or the bank layer 270 .

[0091] The second inorganic sealing film 283 may be formed to cover the dam (DAM).

[0092] A touch sensing layer is formed on the encapsulation layer 280. The touch sensing layer may include a touch electrode 320 including a first touch electrode TE and a second touch electrode RE, a bridge electrode BE, a touch buffer layer 311, and an insulating layer 313.

[0093] First, a touch buffer layer 311 may be formed on the encapsulation layer 280, and may be formed to expose pads in the display area DA and the non-display area NDA. The touch buffer layer 311 may be formed to cover a dam.

[0094] The touch buffer layer 311 can prevent foreign substances, such as chemicals such as a developer or an etchant used in the manufacturing process of the touch electrode formed on the touch buffer layer 311, or external moisture, from penetrating into the light emitting device 260 containing organic matter.

[0095] A bridge electrode BE is formed on the touch buffer layer 311. The bridge electrode BE is formed in the display area DA and electrically connects to the first touch electrode TE formed on the insulating layer 313.

[0096] 5, to prevent the first touch electrodes TE and the second touch electrodes RE from shorting out in an area where they intersect, adjacent first touch electrodes TE in a first direction (y-axis direction) may be electrically connected through a bridge electrode BE. The bridge electrode BE may be disposed on a different layer from the first and second touch electrodes TE and RE and may be connected to adjacent first touch electrodes TE through contact holes CH. The bridge electrode BE may intersect with the second touch electrodes RE.

[0097] In this case, the contact holes CH may be formed through the insulating layer 313. The bridge electrode BE is disposed under the insulating layer 313 and exposed through the two contact holes. Accordingly, the bridge electrode BE is connected to two adjacent first touch electrodes TE.

[0098] The insulating layer 313 is formed on the touch buffer layer 311 to cover the bridge electrodes BE and insulate the bridge electrodes BE from the second touch electrodes RE. The insulating layer 313 is also disposed between the bridge electrodes BE and insulates the bridge electrodes BE from each other.

[0099] The insulating layer 313 is formed to extend not only in the display area DA but also in the non-display area NDA. The insulating layer 313 is formed to cover the dam area, thereby reducing the step caused by the dam.

[0100] A plurality of mesh-shaped touch electrodes 320 are formed on the insulating layer 313. The touch electrodes 320 include a first touch electrode TE and a second touch electrode RE.

[0101] The first touch electrode TE and the second touch electrode RE are formed in the display area DA. The first touch electrode TE is arranged and connected in a first direction (y-axis direction), and the second touch electrode RE is arranged and connected in a second direction (x-axis direction). The first direction (y-axis direction) may be a direction parallel to the scan lines S1 to Sn, and the second direction (x-axis direction) may be a direction parallel to the data lines D1 to Dm. Alternatively, the first direction (y-axis direction) may be a direction parallel to the data lines D1 to Dm, and the second direction (x-axis direction) may be a direction parallel to the scan lines S1 to Sn.

[0102] Each of the first touch electrodes TE connected in the first direction (y-axis direction) is electrically insulated from the adjacent first touch electrode TE in the second direction (x-axis direction). Each of the second touch electrodes RE connected in the second direction (x-axis direction) is electrically insulated from the adjacent second touch electrode RE in the first direction (y-axis direction).

[0103] As a result, a mutual capacitance corresponding to a touch sensor may be formed in an intersection area between the first touch electrode TE and the second touch electrode RE.

[0104] For example, as shown in FIG. 6, the touch electrode 320 may have a mesh shape with openings.

[0105] Since the touch electrode 320 is formed in a mesh shape, the light emitting device 260 can correspond to the opening of the touch electrode 320, thereby improving light output efficiency.

[0106] The touch electrode 320 may be disposed to correspond to the bank layer 270. That is, the touch electrode 320 overlaps the bank layer 270. As described above, the bank layer 270 is disposed to have a plurality of openings, and the openings correspond to the light-emitting areas EA of the light-emitting elements 260. The openings of the touch electrode 320 may also be disposed to correspond to the openings of the bank layer 270.

[0107] Therefore, the touch electrode 320 may be disposed along the bank layer 270 so as to correspond to the bank layer 270. By disposing the touch electrode 320 so as to correspond to the bank layer 270 in this manner, the opening of the touch electrode 320 may also be disposed so as to correspond to the light-emitting area EA, thereby minimizing a reduction in light-emitting efficiency due to the opening of the touch electrode 320 overlapping with the light-emitting area EA.

[0108] Meanwhile, a pad may be formed in the non-display area NDA, and a touch routing wiring 330 may be formed on the insulating layer 313 to electrically connect the pad to the touch electrode 320.

[0109] In this case, the pads (PADs) may be formed in the same layer and made of the same material as the gate electrodes 212, and the touch routing lines 330 may be formed in the same layer and made of the same material as the touch electrodes 320.

[0110] 7 to 8 , a first barrier layer 312 may be disposed in the non-light-emitting area (NEA) on the insulating layer 313. The first barrier layer 312 may be a layer for blocking light in the viewing angle direction and collecting light in the front direction (i.e., perpendicular to the display panel). As shown in FIGS. 7 and 8 , one or more intermediate layers (e.g., a sealing layer 280, a touch buffer layer 311, and an insulating layer 313) may be disposed between the first barrier layer 312 and the light-emitting element 260. The first barrier layer 312 may be made of a metal material or a light-absorbing material. Metal materials can reflect light. The first barrier layer 312 may be made of the same material as the touch electrode 320, but the embodiments herein are not limited thereto. In other embodiments, the first barrier layer 312 may be part of the touch electrode 320 arranged in a mesh shape. The touch electrode 320 not only senses touches on the display panel but also functions as a barrier layer, so the touch electrode 320 can block light in the viewing angle direction and collect light in the front direction. By using the touch electrode 320 as the first barrier layer 312, it is possible to save time and costs by utilizing existing processes without additional processes. The first barrier layer 312 can block light 8f and 8g from viewing angles other than the front.

[0111] Therefore, the display device according to an embodiment of the present disclosure can control or cut off the upper and lower viewing angles without attaching a separate light control film to the surface of the panel.

[0112] A first protective layer 350 covering the touch electrode 320 and the touch routing line 330 may be disposed on the first barrier layer 312 .

[0113] A plurality of lenses 333 may be disposed on the first protective layer 350, each arranged to correspond to a respective one of the light emitting areas EA. That is, each lens 333 overlaps a corresponding one of the light emitting areas EA. A second protective layer 360 may be disposed on the lenses 333. The first protective layer 350 and the second protective layer 360 may be formed so that pads (PADs) in the non-display area NDA are exposed.

[0114] The lenses 333 are disposed on the light emitting elements 260 so as to overlap the light emitting elements 260, and may extend in a first direction (y direction) to a size equal to or greater than the size of the light emitting elements 260, and may be arranged side by side in the first direction. The first direction (y direction) may be, for example, the minor axis direction, vertical direction, or up-down direction in a rectangular display device with a 16:9 aspect ratio.

[0115] FIG. 9 is an enlarged cross-sectional view for explaining the lens of FIG. 7 according to the first embodiment of the present specification.

[0116] As shown in FIG. 8, a plurality of lenses 333a, 333b, and 333c are formed in the light-emitting areas EA of the sub-pixels P1, P2, and P3, respectively, to refract light.

[0117] The lenses 333a, 333b, and 333c may be formed in the patterns of the subpixels P1, P2, and P3. The first lens 333a may be formed in the light-emitting area EA of the first subpixel P1, the second lens 333b may be formed in the light-emitting area EA of the second subpixel P2, and the third lens 333c may be formed in the light-emitting area EA of the third subpixel P3. That is, the first lens 333a overlaps the first subpixel P1, the second lens 333b overlaps the second subpixel P2, and the third lens 333c overlaps the third subpixel P3.

[0118] The lenses 333a, 333b, and 333c may be convex lenses having a semicircular shape bulging upward in the third direction (z direction), for example, in the direction of the polarizing plate 500.

[0119] 8 and 9, when light is incident from the light emitting layers 241, 242, and 243, the plurality of lenses 333a, 333b, and 333c can refract the incident light at a refraction angle θ2 that is larger than the incident angle θ1 (θ1<θ2). Since the incident angle of the light passing through the plurality of lenses 333a, 333b, and 333c to the second substrate 112 is smaller, the light is not totally reflected by the second substrate 112. As a result, the display device 100 according to the first embodiment of the present specification can have excellent light extraction efficiency.

[0120] The lenses 333a, 333b, and 333c can condense the light emitted from the light emitting element 260 toward the front of the display device (8a and 8b).

[0121] 9, the refractive index of the lens 333 may be greater than the refractive index of the second protective layer 360. By forming the refractive index of the second protective layer 360 covering the lens 333 to be smaller than the refractive index of the lens 333, the front light collection efficiency and light emission efficiency due to the refractive index difference can be increased.

[0122] Since the refractive index of the lens 333 is greater than that of the second protective layer 360, when light passes through the lens 333, the direction of travel of the light is bent toward the thicker side of the lens 333, creating a focusing effect that can be used to improve the front brightness. This is because the light path moves from a medium with high refractive index to a medium with low refractive index, preventing the light from leaking sideways, thereby increasing the front brightness.

[0123] For example, the lens 333 may have a refractive index of 1.5 to 1.8, and the second protective layer 360 may have a refractive index of 1.3 to 1.5. Setting the refractive index difference as large as possible may be effective in increasing the front light collection efficiency.

[0124] The lens 333 may be disposed to include the light emitting area EA of the light emitting element 260. If the size of the lens 333 is smaller than the light emitting area EA, the amount of light passing through the lens 333 decreases, resulting in a decrease in the light collection efficiency and light emission efficiency of the lens 333.

[0125] Also, if the size of the lens 333 is made much larger than the light emitting area EA, the radius of curvature of the lens 333 increases, and as a result, the power of the lens decreases, resulting in a decrease in light collection efficiency.

[0126] Therefore, although the power of the lens 333 is increased by reducing the radius of curvature, it may be preferable to form the lens 333 to a size that allows the light emitted from the light-emitting area EA to pass through the lens 333 and maximize the light-collection efficiency.

[0127] The lens 333 may be formed of, but is not limited to, a low-temperature photo acrylic (PAC) material that can be formed in a low-temperature process at 100 degrees or less. For example, the lens 333 may include polytriazine or a material in which one or more of TiO2, ZrO2, and nano filler are added to polytriazine.

[0128] In this specification, the lens 333 must be formed to have a convex shape, and can be formed using an exposure process.

[0129] The light emitting device 260 is located below the lens 333 and overlaps the lens 333. If the process of forming the lens 333 is performed at a high temperature, the lower light emitting device 260 may be damaged by the high temperature. Accordingly, the lens 333 of the present specification is formed using a low-temperature process at 100° C. or less using a material that can be formed using the low-temperature process, thereby minimizing damage to the light emitting device 260 that may occur during the process of forming the lens 333.

[0130] The lens 333 can be formed through the following process. First, a lens film is coated on the first protective layer 350. The first protective layer 350 can be made of photo acrylic. As described above, the lens film can be made of polytriazine or polytriazine to which one or more of TiO2, ZrO2, and nano fillers are added, allowing for a low-temperature process.

[0131] After coating the lens film, an EBR (Edge Bead Removal) process is carried out to remove the edges, followed by a pre-bake process to remove the solvent from the lens film, followed by an exposure process to expose the lens film to the mask pattern, causing the lens film to undergo a photoreaction.

[0132] Then, the lens 333 can be formed by performing a developing process, a rinsing process, a post-exposure process, and a curing process.

[0133] A second protective layer 360 is disposed on the lens 333 to cover the lens 333. In this case, the refractive index of the second protective layer 360 is formed to be lower than that of the lens 333, thereby further increasing the light collection efficiency and light emission efficiency due to the refractive index difference at the interface of the lens 333.

[0134] The display device according to the first embodiment of the present specification may further include a polarizer 500 disposed on the second protective layer 360. The polarizer 500 can reduce external light reflection.

[0135] 10 is a graph showing simulation results of normalized light intensity according to the viewing angle in the first embodiment of the present disclosure, as shown in FIGS. 7 and 8. Here, Comparative Example 10a is a display device in which a light control film is attached to the surface of a panel that does not include the lens 333 and first barrier layer 312 according to the present disclosure.

[0136] 10, it can be seen that the vertical viewing angles of the display device according to Example 10b of the present specification are narrower than those of Comparative Example 10a. The vertical viewing angles of the display device according to Comparative Example 10a are approximately ±35 degrees, while the vertical viewing angles of the display device according to Example 10b of the present specification are improved to approximately ±20 degrees.

[0137] FIG. 11 is a diagram showing a display device according to a second embodiment of the present specification, and is a cross-sectional view corresponding to lines II' and II-II' in FIG.

[0138] FIG. 12 is an enlarged cross-sectional view of region 11A of FIG. 11 according to the second embodiment of the present specification.

[0139] Hereinafter, the description will be focused on the differences and will omit the description of the same content as in the display device according to an embodiment of the present specification described with reference to Figures 7 and 8. The content omitted in the following description may be applied as is to the content of the embodiment of the present specification described with reference to Figures 7 and 8.

[0140] 11 and 12, a second barrier layer 315 may be disposed on the encapsulation layer 280 or the touch buffer layer 311. The second barrier layer 315 may be a layer for blocking light in the viewing angle direction and collecting light in the front direction. The second barrier layer 315 may be made of a metal material or a light-absorbing material. Metal materials can reflect light. An insulating layer 313 may be disposed on the second barrier layer 315. A first barrier layer 312 and a lens 343 may be disposed on the insulating layer 313. The first barrier layer 312 may be disposed between the plurality of lenses 343a, 343b, and 343c. The lens 343, for example, the plurality of lenses 343a, 343b, and 343c, may be disposed in the light-emitting area EA. The plurality of lenses 343a, 343b, and 343c may be disposed to overlap the light-emitting area EA without overlapping the second barrier layer 315. The first barrier layer 312 and the second barrier layer 315 may be disposed in the non-light-emitting area NEA. The first barrier layer 312 and the second barrier layer 315 may be made of a metal material. The first barrier layer 312 may be made of the same material as the touch electrode 320, although this specification is not limited to this. The second barrier layer 315 may be made of the same material as the bridge electrode BE, although this specification is not limited to this. An insulating layer 313 may be disposed on the second barrier layer 315. The first barrier layer 312 may be disposed on the insulating layer 313 in the non-light-emitting area NEA. Because the first barrier layer 312 is a touch electrode and the second barrier layer 315 is made of the same material as the bridge electrode BE, existing processes can be used without additional processes, thereby saving time and costs. The second barrier layer 315 can block light 8f and 8g in the viewing angle direction. When both the first barrier layer 312 and the second barrier layer 315 are present, the inter-lens leakage light 8c in FIG. 8 that occurs when the second barrier layer 315 is not present can be blocked (12c) as shown in FIG.

[0141] Therefore, the display device according to the second embodiment of the present specification can control or cut off the upper and lower viewing angles without attaching a separate light control film to the surface of the panel.

[0142] A protective layer 350 may be disposed on the first barrier layer 312 , the lens 343 , the touch electrode 320 and the touch routing line 330 .

[0143] A plurality of lenses 343a, 343b, and 343c may be disposed on the insulating layer 313, each of which corresponds to a plurality of light emitting areas EA. A protective layer 350 may be disposed on the lenses 343. The protective layer 350 may be formed to expose pads (PAD) in the non-display area NDA.

[0144] The lenses 343 are disposed on the plurality of light emitting devices 260, and may extend in a first direction (y-axis direction) to a size equal to or longer than the size of the plurality of light emitting devices 260, and may be arranged side by side in the first direction. The first direction (y-axis direction) may be, for example, the short axis direction, vertical direction, or up-down direction in a rectangular display device with a 16:9 aspect ratio.

[0145] The light-condensing principle related to the lens 343 has been explained in relation to FIG. 9, so a duplicate explanation will be omitted.

[0146] The display device according to the second embodiment of the present specification may further include a polarizer 500 disposed on the protective layer 350. The polarizer 500 can reduce external light reflection.

[0147] FIG. 13 is a graph showing simulation results for normalized light intensity according to the viewing angle of FIGS. 11 and 12 in the second embodiment of the present specification.

[0148] 13 is a graph showing the results of a simulation of brightness as a function of vertical viewing angles in Comparative Example 13a and Example 2 13b. Comparative Example 13a is a display device in which a separate light control film is attached to the surface of a panel that does not include lens 343, first barrier layer 312, or second barrier layer 315 according to the present disclosure.

[0149] 13, it can be seen that the vertical viewing angles of the display device according to Example 2 13b of the present specification are narrower than those of the display device according to Comparative Example 13a. The vertical viewing angles of the display device according to Comparative Example 13a are approximately ±35 degrees, while the vertical viewing angles of the display device according to Example 2 13b of the present specification are improved to approximately ±30 degrees.

[0150] FIG. 14 is a drawing showing a third embodiment of the present specification, and is a cross-sectional view corresponding to lines II' and II-II' in FIG.

[0151] FIG. 15 is an enlarged cross-sectional view of area 14A of FIG. 14 according to the third embodiment of the present specification.

[0152] Hereinafter, the description will be focused on the differences and will omit the description of the same content as in the display device according to an embodiment of the present specification described with reference to Figures 7-8 and 11-12. The omitted content in the following description can be applied to the same content of the embodiment of the present specification described with reference to Figures 7-8 and 11-12.

[0153] 14 and 15, a light-absorbing pattern 317 may be disposed on the encapsulation layer 280 or the touch buffer layer 311. The light-absorbing pattern 317 may include a light-absorbing black matrix (BM), such as a black resin or a dye. This specification is not limited thereto. An insulating layer 313 may be disposed on the light-absorbing pattern 317. A first barrier layer 312 and a lens 343 may be disposed on the insulating layer 313. The first barrier layer 312 may be disposed between a plurality of lenses 343a, 343b, and 343c. The lens 343, for example, the plurality of lenses 343a, 343b, and 343c, may be disposed in the light-emitting area EA. The first barrier layer 312 and the light-absorbing pattern 317 may be disposed in the non-light-emitting area NEA. The first barrier layer 312 may be made of the same material as the touch electrode 320. This specification is not limited thereto. When the light absorbing pattern 317 is present, the inter-lens leakage light 8c in Fig. 8 that occurs when the light absorbing pattern 317 is not present can be blocked (12c) between the lenses as shown in Fig. 15. Furthermore, when the light absorbing pattern 317 is not present, primary reflected light 12d that is reflected by the second barrier layer 315 in the light emitting area EA and multiple reflected light 12e that is reflected by metal such as the source electrode 213 and the drain electrode 214 in the non-light emitting area NEA can occur as shown in Fig. 12. When the light absorbing pattern 317 such as black resin is present, the primary reflected light (15e) and multiple reflected light (15d) can be improved as shown in Fig. 15.

[0154] Therefore, when the light absorbing pattern 317 made of black material is disposed in the non-light emitting area NEA, it is possible to prevent reflection by the internal metal and additional light leakage by the lens 343 .

[0155] Meanwhile, although not shown in the drawings, in this embodiment, only the light absorbing pattern 317 may be disposed on the touch buffer layer 311, and the first barrier layer 312 may not be disposed. The embodiments of the present specification are not limited thereto.

[0156] In this case, the protective layer 350 may be disposed on the first barrier layer 312, the lens 343, the touch electrode 320, and the touch routing line 330.

[0157] A plurality of lenses 343a, 343b, and 343c may be disposed on the insulating layer 313, each of which corresponds to a plurality of light emitting areas EA. A protective layer 350 may be disposed on the lenses 343. The protective layer 350 may be formed so that pads (PADs) in the non-display area NDA are exposed.

[0158] The lenses 343 may be disposed on the plurality of light emitting devices 260, extend in a first direction (y-axis direction) longer than the size of the plurality of light emitting devices 260, and be arranged side by side in the first direction. The first direction (y-axis direction) may be, for example, a minor axis direction, a vertical direction, or an up-down direction in a rectangular display device with a 16:9 aspect ratio.

[0159] The lens-related light-condensing principle has been explained in relation to FIG. 9, so a duplicate explanation will be omitted.

[0160] The display device according to an embodiment of the present disclosure may further include a polarizer 500 disposed on the protective layer 350. The polarizer 500 can reduce external light reflection.

[0161] FIG. 16 is a diagram showing a simulation result of normalized light intensity according to the viewing angle of FIGS. 14 and 15 in the third embodiment of the present specification.

[0162] 16 is a graph showing the results of a simulation of brightness as a function of vertical viewing angles in Comparative Example 16a and Example 16b. Comparative Example 16a is a display device in which a separate light control film is attached to the surface of a panel that does not include lens 343, light absorbing pattern 317, or first barrier layer 312 according to the present disclosure.

[0163] Referring to Figure 16, it can be seen that the display device according to Example 16b of the present specification has narrower vertical viewing angles than the display device according to Comparative Example 16a. The vertical viewing angles of the display device according to Comparative Example 16a are approximately ±35 degrees, while the vertical viewing angles of the display device according to Example 16b of the present specification are improved to less than ±30 degrees. Furthermore, Figure 13 shows that additional leakage light, e.g., multiple reflection light 8e, from lens 343 causes unwanted viewing angle brightness inversion (8p). Figure 16 shows that the light absorbing pattern 317, such as black resin, prevents unwanted viewing angle brightness inversion (8p) and provides gentle brightness inversion in the corresponding viewing angle region.

[0164] FIG. 17 is a cross-sectional view of a display device according to a fourth embodiment of the present specification, and corresponds to area 14A in FIG.

[0165] Hereinafter, the description of the display device according to the first embodiment of this specification will be omitted, and the differences will be mainly described. The omitted parts in the following description can be applied in the same way to the contents described in the first embodiment.

[0166] Referring to FIG. 17 , a light-absorbing pattern 317 may be disposed on the encapsulation layer 280 or the touch buffer layer 311. The light-absorbing pattern 317 may include a light-absorbing black matrix BM, such as a black resin or a dye, but the present disclosure is not limited thereto. An insulating layer 313 may be disposed on the light-absorbing pattern 317. A first barrier layer 312 and lenses 343 may be disposed on the insulating layer 313. The first barrier layer 312 may be disposed between a plurality of lenses 343a, 343b, and 343c. The lenses 343, for example, the plurality of lenses 343a, 343b, and 343c, may be disposed in the light-emitting area EA. The first barrier layer 312 and the light-absorbing pattern 317 may be disposed in the non-light-emitting area NEA. The first barrier layer 312 may be made of the same material as the touch electrode 320, but the present disclosure is not limited thereto.

[0167] Since the light absorbing pattern 317 is arranged to correspond to the non-light emitting area NEA, it is possible to block the leaked light (12c in FIG. 12) between the lenses 343. Furthermore, if the light absorbing pattern 317 is not arranged, the first reflected light (12d in FIG. 12) reflected by the second barrier layer 315 and the second reflected light (12e in FIG. 12) reflected by the source electrode 213 and the drain electrode 214 can transmit through the lens 343. If the light absorbing pattern 317 is arranged to correspond to the non-light emitting area NEA, the first reflected light 15e and the second reflected light 15d can be blocked by the light absorbing pattern 317.

[0168] Therefore, when the light absorbing pattern 317 of the black material is arranged to correspond to the non-light emitting area NEA, reflection by the internal metal is reduced, and leakage light transmitted through the lens 343 can be prevented.

[0169] The light-absorbing pattern 317 may have a first width W1, and the first barrier layer 312 may have a second width W2 that is smaller than the first width W1. Because the first width W1 of the light-absorbing pattern 317 is larger than the second width W2 of the first barrier layer 312, light that transmits outside the light-absorbing pattern 317 and is reflected by the first barrier layer 312 may be reduced or minimized. The lenses 343 may have a third width W3, and the light-emitting area EA may have a fourth width W4 that is different from the first width W3. For example, the lenses 343 may have the third width W3 that is larger than the fourth width W4. Because the third width W3 of the lenses 343 is larger than the fourth width W4 of the light-emitting area EA, the amount of light 8a and 8b transmitted through the lenses 343 in the front direction may be increased or maximized.

[0170] Therefore, when the light absorbing pattern 317 is wider than the first barrier layer 312, reflection by the first barrier layer 312 is reduced, and light leakage by the first barrier layer 312 can be prevented. Also, when the lens 343 is wider than the light emitting area EA, the amount of light transmitted through the lens 343 can be increased.

[0171] Meanwhile, although not shown in the drawings, in this embodiment, only the light absorbing pattern 317 may be disposed on the touch buffer layer 311, and the first barrier layer 312 may not be disposed. However, the embodiments of the present specification are not limited thereto.

[0172] In this case, too, the protective layer 350 can be disposed on the first barrier layer 312 , the lens 343 , the touch electrode 320 and the touch routing line 330 .

[0173] A plurality of lenses 343a, 343b, and 343c may be disposed on the insulating layer 313 so as to correspond to the plurality of light-emitting areas EA, respectively. A protective layer 350 may be disposed on the lenses 343. The protective layer 350 may be formed so that the pads (PAD) of the non-display area NDA are exposed.

[0174] The lenses 343 are disposed on the plurality of light emitting elements 260 and may extend in a first direction (y-axis direction) the same length as or longer than the size of the plurality of light emitting elements 260 and may be arranged side by side in the first direction. The first direction (y-axis direction) may be, for example, the short axis direction, vertical direction, or up-down direction in a rectangular display device having a ratio of 16:9.

[0175] The light-condensing principle of the lens 343 in the fourth embodiment is the same as that in the first embodiment, and therefore a description of the light-condensing principle of the lens 343 will be omitted.

[0176] The display device according to the fourth embodiment of the present specification may further include a polarizer 500 disposed on the protective layer 350. The polarizer 500 can reduce external light reflection.

[0177] FIG. 18 is a cross-sectional view of a display device according to a fifth embodiment of the present specification, and corresponds to area 14A in FIG.

[0178] Hereinafter, the description of the display device according to the first embodiment of this specification will be omitted, and the differences will be mainly described. The omitted parts in the following description can be applied in the same way to the contents described in the first embodiment.

[0179] 18, a light absorbing pattern 317 may be disposed on the encapsulation layer 280 or the touch buffer layer 311. The light absorbing pattern 317 may include a light-absorbing black matrix BM, such as a black resin or a dye, but the present specification is not limited thereto. An insulating layer 313 may be disposed on the light absorbing pattern 317. A first barrier layer 312 and lenses 343 may be disposed on the insulating layer 313. The first barrier layer 312 may be disposed between a plurality of lenses 343a, 343b, and 343c. The lenses 343, for example, the plurality of lenses 343a, 343b, and 343c, may be disposed to correspond to (overlap) the light emitting areas EA of the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3, respectively. The first barrier layer 312 and the light absorbing pattern 317 may be disposed to correspond to (overlap) a non-emission area NEA of a corresponding one of the first sub-pixel P1, the second sub-pixel P2, and the third sub-pixel P3. The first barrier layer 312 may be made of the same material as the touch electrode 320, but the present specification is not limited thereto.

[0180] Since the light absorbing pattern 317 is arranged to correspond to the non-light emitting area NEA, it is possible to block the leaked light (12c in FIG. 12) between the lenses 343. Furthermore, if the light absorbing pattern 317 is not arranged, the first reflected light (12d in FIG. 12) reflected by the second barrier layer 315 and the second reflected light (12e in FIG. 12) reflected by the source electrode 213 and the drain electrode 214 can transmit through the lens 343. If the light absorbing pattern 317 is arranged to correspond to the non-light emitting area NEA, the first reflected light 15e and the second reflected light 15d can be blocked by the light absorbing pattern 317.

[0181] Therefore, when the light absorbing pattern 317 of the black material is arranged to correspond to the non-light emitting area NEA, reflection by the internal metal is reduced, and leakage light transmitted through the lens 343 can be prevented.

[0182] The light absorbing patterns 317 of the first, second, and third subpixels P1, P2, and P3 may have different widths. For example, the light absorbing patterns 317 of the first, second, and third subpixels P1, P2, and P3 may have different widths W11, W12, and W13, respectively. The first barrier layers 312 of the first, second, and third subpixels P1, P2, and P3 may have different widths W21, W22, and W23, respectively. The width W11 may be smaller than the width W21, the width W12 may be smaller than the width W22, and the width W13 may be smaller than the width W23. Therefore, the amount of light that is transmitted to the outside of the light absorbing pattern 317 and reflected by the first barrier layer 312 can be reduced or minimized.

[0183] The lenses 343a, 343b, and 343c of the first, second, and third subpixels P1, P2, and P3 may have different widths. For example, the lenses 343a, 343b, and 343c of the first, second, and third subpixels P1, P2, and P3 may have different widths W31, W32, and W33, respectively. The light-emitting regions EA of the first, second, and third subpixels P1, P2, and P3 may have different widths W41, W42, and W43, respectively. The width W31 may be greater than the width W41, the width W32 may be greater than the width W42, and the width W33 may be greater than the width W43. Therefore, the light 8a and 8b transmitted through the lens 343 in the front direction may be increased or maximized.

[0184] For example, based on luminance and lifetime, the width W41 corresponding to the first red subpixel P1 may be smaller than the width W42 corresponding to the second green subpixel P2 and larger than the width W43 corresponding to the third blue subpixel P3. Similarly, the width W31 of the lens 343a corresponding to the first red subpixel P1 may be smaller than the width W32 of the lens 343b corresponding to the second green subpixel P2 and larger than the width W33 of the lens 343c corresponding to the third blue subpixel P3.

[0185] Therefore, when the light absorbing pattern 317 is wider than the first barrier layer 312, reflection by the first barrier layer 312 is reduced, and light leakage by the first barrier layer 312 can be prevented. Also, when the lens 343 is wider than the light emitting area EA, the amount of light transmitted through the lens 343 can be increased.

[0186] Meanwhile, although not shown in the drawings, in this embodiment, only the light absorbing pattern 317 may be disposed on the touch buffer layer 311, and the first barrier layer 312 may not be disposed. However, the embodiments of the present specification are not limited thereto.

[0187] In this case, too, the protective layer 350 can be disposed on the first barrier layer 312 , the lens 343 , the touch electrode 320 and the touch routing line 330 .

[0188] A plurality of lenses 343a, 343b, and 343c may be disposed on the insulating layer 313 so as to correspond to the plurality of light-emitting areas EA, respectively. A protective layer 350 may be disposed on the lenses 343. The protective layer 350 may be formed so that the pads (PAD) of the non-display area NDA are exposed.

[0189] The lenses 343 are disposed on the plurality of light emitting elements 260 and may extend in a first direction (y-axis direction) the same length as or longer than the size of the plurality of light emitting elements 260 and may be arranged side by side in the first direction. The first direction (y-axis direction) may be, for example, the short axis direction, vertical direction, or up-down direction in a rectangular display device having a ratio of 16:9.

[0190] The light-condensing principle of the lens 343 in the fifth embodiment is the same as that in the first embodiment, and therefore a description of the light-condensing principle of the lens 343 will be omitted.

[0191] The display device according to the fifth embodiment of the present specification may further include a polarizer 500 disposed on the protective layer 350. The polarizer 500 can reduce external light reflection.

[0192] An apparatus according to an embodiment of the present invention can be described as follows.

[0193] A display device according to an embodiment of the present specification may include a display panel including a display area including a light-emitting area and a non-light-emitting area, and a non-display area, at least one first barrier layer disposed on the display panel in the non-light-emitting area and blocking light from the light-emitting area, at least one second barrier layer overlapping the at least one first barrier layer in the non-light-emitting area, and at least one lens disposed in the same layer as the at least one first barrier layer and overlapping the light-emitting area.

[0194] According to some embodiments herein, the at least one first barrier layer may include at least a portion of a mesh-shaped first touch electrode.

[0195] According to some embodiments herein, the at least one second barrier layer can include a light-absorbing black material.

[0196] According to some embodiments herein, the width of the at least one first barrier layer may be different from the width of the at least one second barrier layer.

[0197] According to some embodiments herein, a width of the at least one second barrier layer may be greater than a width of the at least one first barrier layer.

[0198] According to some embodiments herein, the width of the at least one lens may be different from the width of the light emitting area.

[0199] According to some embodiments herein, the width of the at least one lens may be greater than the width of the light emitting area.

[0200] According to some embodiments of the present specification, the display area includes first, second, and third sub-pixels, each having a corresponding light-emitting area and a corresponding non-light-emitting area, and the at least one lens includes a plurality of lenses, including a first lens corresponding to the first sub-pixel, a second lens corresponding to the second sub-pixel, and a third lens corresponding to the third sub-pixel, wherein the widths of the first lens corresponding to the first sub-pixel, the second lens corresponding to the second sub-pixel, and the third lens corresponding to the third sub-pixel are different from each other, and the at least one first barrier layer includes a plurality of first barrier layers, wherein the width of the first barrier layer corresponding to the first sub-pixel among the plurality of first barrier layers, the width of the first barrier layer corresponding to the second sub-pixel among the plurality of first barrier layers, and the width of the first barrier layer corresponding to the third sub-pixel among the plurality of first barrier layers may be different from each other.

[0201] According to some embodiments of the present specification, the width of the first lens corresponding to the first subpixel may be greater than the width of the light-emitting area corresponding to the first subpixel, the width of the second lens corresponding to the second subpixel may be greater than the width of the light-emitting area corresponding to the second subpixel, and the width of the third lens corresponding to the third subpixel may be greater than the width of the light-emitting area corresponding to the third subpixel.

[0202] According to some embodiments of the present disclosure, the display device may further include an insulating layer between the at least one first barrier layer and the at least one second barrier layer.

[0203] According to some embodiments herein, the at least one second barrier layer may include at least a portion of a mesh-shaped second touch electrode.

[0204] According to some embodiments herein, the display device may further include a protective layer covering the at least one lens, and the refractive index of the at least one lens may be greater than the refractive index of the protective layer.

[0205] According to some embodiments herein, at least one first barrier layer can be disposed between a pair of lenses including at least one lens.

[0206] According to some embodiments herein, the at least one first barrier layer and the at least one second barrier layer can comprise different materials.

[0207] A display device according to an embodiment of the present specification may include a substrate including a display area and a non-display area, a plurality of light-emitting elements arranged in the display area and emitting light, at least one sealing layer arranged on the plurality of light-emitting elements, at least one barrier layer arranged on the at least one sealing layer and blocking light from the plurality of light-emitting elements without overlapping any one of the plurality of light-emitting elements, and a plurality of lenses arranged on the at least one sealing layer and overlapping the plurality of light-emitting elements.

[0208] According to some embodiments herein, the lenses may not overlap the at least one barrier layer.

[0209] According to some embodiments herein, the at least one barrier layer may include at least a portion of a mesh-shaped touch electrode.

[0210] According to some embodiments herein, at least one barrier layer can include a light-absorbing black material.

[0211] According to some embodiments herein, the display device may further include a protective layer disposed on the plurality of lenses, and the refractive index of the plurality of lenses may be greater than the refractive index of the protective layer.

[0212] According to some embodiments herein, the at least one barrier layer may include a first barrier layer disposed in the same layer as the lenses, and a second barrier layer disposed between the first barrier layer and the substrate and overlying the first barrier layer.

[0213] According to some embodiments of the present disclosure, the display device may further include a bridge electrode connected to the touch electrode, and the second barrier layer may include the same material as the bridge electrode.

[0214] According to some embodiments herein, the second barrier layer can include a light-absorbing black material.

[0215] A display device according to an embodiment of the present specification may include a substrate including a display area and a non-display area, a plurality of light-emitting elements arranged in the display area and emitting light, one or more intermediate layers arranged on top of the plurality of light-emitting elements, a plurality of touch electrodes arranged on top of the one or more intermediate layers and sensing touches and blocking light from the plurality of light-emitting elements without overlapping the plurality of light-emitting elements, and a plurality of lenses overlapping the plurality of light-emitting elements.

[0216] According to some embodiments herein, the lenses may not overlap the touch electrodes.

[0217] According to some embodiments herein, the touch electrodes may be positioned closer to the substrate than the lenses.

[0218] According to some embodiments herein, multiple touch electrodes may be disposed on the same layer as multiple lenses.

[0219] According to some embodiments of the present disclosure, at least one touch electrode of the plurality of touch electrodes may be disposed between a pair of lenses of the plurality of lenses.

[0220] According to some embodiments of the present specification, the display device may further include a plurality of barrier layers disposed between the plurality of touch electrodes and the substrate, overlapping the plurality of touch electrodes but not overlapping the plurality of light-emitting elements.

[0221] According to some embodiments herein, the barrier layers may not overlap the lenses.

[0222] According to some embodiments herein, the barrier layers may include a light-absorbing black material.

[0223] According to some embodiments herein, the barrier layers may include a reflective material.

[0224] According to some embodiments herein, the display device may further include a protective layer covering the plurality of lenses, and the refractive index of the protective layer may be smaller than the refractive index of the plurality of lenses.

[0225] Although the present specification has been described above with reference to the drawings illustrating the present specification, the present specification is not limited to the embodiments and drawings disclosed herein, and it is obvious that various modifications can be made by those skilled in the art within the scope of the technical concept of the present specification. Furthermore, even if the effects of the configurations of the present specification have not been clearly described in the description of the embodiments of the present specification, it goes without saying that the effects that can be predicted by the corresponding configurations should also be recognized. [Explanation of symbols]

[0226] 100:Display device 110: Display panel 111: First board 112: Second board 120: Scan driver 130: Data driver 131: Source drive IC 140: Flexible film 150: Circuit board 160: Timing controller 170: Host system 180: Touch drive unit 181: First touch driver 182: Second touch drive unit 183: Touch controller 190: Touch coordinate calculation unit 210: Thin film transistor 211: Active layer 212: Gate electrode 213: Source electrode 214: Drain electrode 220: Gate insulating layer 230: Interlayer insulating layer 240: Passivation layer 250: First planarization layer 260: Light emitting element 261: 1st electrode 262: Organic light-emitting layer 263:Second electrode 270: Bank layer 280: Sealing layer 281:First inorganic sealing film 282:Organic sealing film 283:Second inorganic sealing film 311: Touch buffer layer 313: Insulating layer 320: Touch electrode 330: Touch routing wiring 350: 1st protective layer 360:Second protective layer 333, 343, 353: Lenses 312: First barrier layer 315: Second barrier layer 317: Light absorption pattern 500: Polarizing plate

Claims

1. a display panel including a display area including a light-emitting area and a non-light-emitting area, and a non-display area including a pad area where pads are arranged; at least one first barrier layer disposed on the display panel in the non-light-emitting region, the first barrier layer blocking light from the light-emitting region; at least one second barrier layer overlying the at least one first barrier layer in the non-emissive region and blocking light from the emissive region; at least one lens disposed on the same layer as the at least one first barrier layer and overlying the light emitting region; a touch buffer layer underlying the at least one second barrier layer; an insulating layer between the at least one first barrier layer and the at least one second barrier layer; and a protective layer overlying the at least one lens; At least one of the touch buffer layer, the insulating layer, and the protective layer extends to a boundary of the pad area.

2. The display device of claim 1 , wherein the at least one first barrier layer includes at least a portion of a first touch electrode having a mesh shape.

3. The display device of claim 1 , wherein the at least one second barrier layer comprises a light-absorbing black material.

4. The display device of claim 1 , wherein a width of the at least one first barrier layer is different from a width of the at least one second barrier layer.

5. The display device of claim 4 , wherein the width of the at least one second barrier layer is greater than the width of the at least one first barrier layer.

6. The display device of claim 1 , wherein a width of the at least one lens is different from a width of the light-emitting area.

7. The display device of claim 6 , wherein the width of the at least one lens is greater than the width of the light-emitting area.

8. the display area includes first, second, and third sub-pixels, each having a corresponding light-emitting region and a corresponding non-light-emitting region, and the at least one lens includes a plurality of lenses, including a first lens corresponding to the first sub-pixel, a second lens corresponding to the second sub-pixel, and a third lens corresponding to the third sub-pixel; a width of the first lens corresponding to the first sub-pixel, a width of the second lens corresponding to the second sub-pixel, and a width of the third lens corresponding to the third sub-pixel are different from one another; 2. The display device of claim 1, wherein the at least one first barrier layer includes a plurality of first barrier layers, and a width of a first barrier layer among the plurality of first barrier layers corresponding to the first sub-pixel, a width of a first barrier layer among the plurality of first barrier layers corresponding to the second sub-pixel, and a width of a first barrier layer among the plurality of first barrier layers corresponding to the third sub-pixel are different from each other.

9. 9. The display device of claim 8, wherein a width of the first lens corresponding to the first subpixel is greater than a width of the light-emitting region corresponding to the first subpixel, a width of the second lens corresponding to the second subpixel is greater than a width of the light-emitting region corresponding to the second subpixel, and a width of the third lens corresponding to the third subpixel is greater than a width of the light-emitting region corresponding to the third subpixel.

10. The display device of claim 1 , wherein the at least one second barrier layer comprises the same material as a bridge electrode between the touch buffer layer and the insulating layer.

11. The display device of claim 1 , wherein the refractive index of the at least one lens is greater than the refractive index of the protective layer.

12. The display device of claim 1 , wherein the at least one first barrier layer is disposed between a pair of lenses including the at least one lens.

13. The display device of claim 1 , wherein the at least one first barrier layer and the at least one second barrier layer comprise different materials.

14. a substrate including a display area and a non-display area including a pad area where pads are disposed; a plurality of light-emitting elements disposed in the display area and emitting light; at least one encapsulation layer disposed over the plurality of light-emitting elements; at least one barrier layer disposed on the at least one sealing layer, the barrier layer not overlapping any one of the plurality of light-emitting elements and blocking light from the plurality of light-emitting elements; a plurality of lenses disposed on the at least one encapsulation layer and overlapping the plurality of light-emitting elements; a touch buffer layer underlying the at least one barrier layer; an insulating layer between the at least one barrier layer and the touch buffer layer; and a protective layer overlying the plurality of lenses; At least one of the touch buffer layer, the insulating layer, and the protective layer extends to a boundary of the pad area.

15. The display device of claim 14 , wherein the plurality of lenses do not overlap the at least one barrier layer.

16. The display device of claim 14 , wherein the at least one barrier layer includes at least a portion of a touch electrode having a mesh shape.

17. 15. The display device of claim 14, wherein the at least one barrier layer comprises a light-absorbing black material.

18. The display device according to claim 14 , wherein the refractive index of the plurality of lenses is greater than the refractive index of the protective layer.

19. The at least one barrier layer is a first barrier layer disposed in the same layer as the lenses; and 17. The display of claim 16, further comprising a second barrier layer disposed between the first barrier layer and the substrate and overlying the first barrier layer.

20. further comprising a bridge electrode connected to the touch electrode; The display device of claim 19 , wherein the second barrier layer comprises the same material as the bridge electrode.

21. 20. The display device of claim 19, wherein the second barrier layer comprises a light-absorbing black material.

22. a substrate including a display area and a non-display area including a pad area where pads are arranged; a plurality of light-emitting elements disposed in the display area and emitting light; one or more intermediate layers disposed over the plurality of light-emitting elements; a plurality of touch electrodes disposed on the one or more intermediate layers, the touch electrodes not overlapping the plurality of light-emitting elements, for sensing touch and blocking light from the plurality of light-emitting elements; a plurality of lenses overlying the plurality of light emitting elements; a touch buffer layer underlying the plurality of touch electrodes; an insulating layer between the plurality of touch electrodes and the touch buffer layer; and a protective layer overlying the plurality of lenses; At least one of the touch buffer layer, the insulating layer, and the protective layer extends to a boundary of the pad area.

23. The display device of claim 22 , wherein the lenses do not overlap the touch electrodes.

24. The display device of claim 22 , wherein the plurality of touch electrodes are disposed closer to the substrate than the plurality of lenses.

25. The display device of claim 22 , wherein the plurality of touch electrodes are disposed in the same layer as the plurality of lenses.

26. The display device of claim 25 , wherein at least one of the plurality of touch electrodes is disposed between a pair of lenses of the plurality of lenses.

27. The display device of claim 25 , further comprising a plurality of barrier layers disposed between the plurality of touch electrodes and the substrate, the barrier layers overlapping the plurality of touch electrodes and not overlapping the plurality of light-emitting elements.

28. 28. The display device of claim 27, wherein the barrier layers do not overlap the lenses.

29. 28. The display device of claim 27, wherein the plurality of barrier layers include a light-absorbing black material.

30. 28. The display of claim 27, wherein the plurality of barrier layers comprises a reflective material.

31. 23. The display device of claim 22, wherein the protective layer has a refractive index that is smaller than the refractive index of the lenses.

32. a dam in the non-display area that surrounds the outer periphery of the display area; and further comprising a sealing layer underlying the touch buffer layer; the sealing layer extends to the dam; The display device according to claim 1 , wherein at least one of the touch buffer layer, the insulating layer, and the protective layer extends to a boundary of the pad area and covers the dam.

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