Display device

Abstract

The display device includes a light-emitting panel having a first light-emitting diode, a second light-emitting diode and a third light-emitting diode and a color panel located on the light-emitting panel. The color panel includes a first color area, a second color area, a third color area and a light-blocking area. The first color area, the second color area and the third color area transmit light of different colors. The light-emitting panel also includes two first power lines spaced apart from each other, a connecting electrode electrically connected to the two first power lines and an insulating layer located on the connecting electrode, the insulating layer having an opening, each opening exposing a corresponding one of the connecting electrodes. The first light-emitting diode, the second light-emitting diode and the third light-emitting diode are spaced apart from each other between the two first power lines. The second color area is smaller in size than each of the first color area and the third color area. The second color area is arranged between the first color area and the third color area.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the priority of Korean Patent Application No. 10-2019-0124771 filed on October 8, 2019 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference. Technical Field

[0003] The present invention relates to a display device, and more particularly to a display device having different color regions. Background Art

[0004] As the display field for visually expressing various electrical signal information is rapidly developing, various display devices having excellent characteristics such as small thickness, light weight, and low power consumption have been introduced.

[0005] The display device may include a liquid crystal display device that emits light from a backlight but does not emit light itself, or a light-emitting display device including a display element that can emit light. The light-emitting display device may include a pixel electrode, an opposing electrode, and a display element including an emission layer located between the pixel electrode and the opposing electrode. Summary of the invention

[0006] One or more exemplary embodiments include a display device, and more particularly, a structure of a light-emitting display device.

[0007] Additional aspects will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the presented embodiments of the disclosure.

[0008] According to an exemplary embodiment of the present invention, a display device includes: a light-emitting panel having a first light-emitting diode, a second light-emitting diode and a third light-emitting diode; and a color panel located on the light-emitting panel. The color panel includes a first color area, a second color area, a third color area and a light-blocking area. The first color area, the second color area and the third color area transmit light of different colors. The light-emitting panel also includes two first power lines spaced apart from each other, a connecting electrode electrically connected to the two first power lines, and an insulating layer located on the connecting electrode, the insulating layer having an opening, each of the openings exposing a corresponding one of the connecting electrodes. The first light-emitting diode, the second light-emitting diode and the third light-emitting diode are spaced apart from each other between the two first power lines. The second color area is smaller in size than each of the first color area and the third color area. The second color area is arranged between the first color area and the third color area.

[0009] According to an exemplary embodiment of the present invention, a display device includes: two first power lines spaced apart from each other; a connection electrode overlapping the two first power lines; an insulating layer disposed on the connection electrode and including openings respectively exposing the connection electrodes; and a first light emitting diode, a second light emitting diode, and a third light emitting diode located between the two adjacent first power lines. The first light emitting diode, the second light emitting diode, and the third light emitting diode are spaced apart from each other between the two first power lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The above and other aspects, features, and advantages of certain exemplary embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0011] Figure 1A is a perspective view of a display device according to an exemplary embodiment of the present invention;

[0012] Figure 1B is a plan view showing an enlarged view of a display area in a display device according to an exemplary embodiment of the present invention;

[0013] Figure 2A is a plan view of a color panel according to an exemplary embodiment of the present invention;

[0014] Figure 2B is a cross-sectional view of a color panel according to an exemplary embodiment of the present invention;

[0015] Figure 3 is a diagram showing each portion in a color conversion transmission layer according to an exemplary embodiment of the present invention;

[0016] Figure 4A is a plan view of a display panel according to an exemplary embodiment of the present invention;

[0017] Figure 4B is a cross-sectional view of a display panel according to an exemplary embodiment of the present invention;

[0018] Figure 5 is a cross-sectional view of a display device according to an exemplary embodiment of the present invention;

[0019] Figure 6 is a circuit diagram of a pixel circuit connected to a light emitting diode in a display device according to an exemplary embodiment of the present invention;

[0020] Figure 7 is a plan view of pixel circuits and lines in a light emitting panel in a display device according to an exemplary embodiment of the present invention;

[0021] Figure 8 is an exemplary embodiment of the present invention and Figure 7 A plan view of an organic light emitting diode with pixel circuits and overlapping lines;

[0022] Fig. 9 According to an exemplary embodiment of the present invention, Figure 8 A cross-sectional view taken along line IX-IX';

[0023] Fig.10 According to an exemplary embodiment of the present invention, Figure 8 A cross-sectional view taken along line XX';

[0024] Fig.11 According to an exemplary embodiment of the present invention, Figure 8 A cross-sectional view taken along line XI-XI';

[0025] Fig.12 is a plan view partially showing a display device according to an exemplary embodiment of the present invention;

[0026] Fig.13 is a plan view partially showing a display device according to an exemplary embodiment of the present invention; and

[0027] Fig.14 and Fig.15 is a diagram of an electronic device including a display device according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0028] Reference will now be made in detail to embodiments, examples of which are shown in the accompanying drawings, wherein the same reference numerals always represent the same elements. In this regard, the present embodiments may have different forms and should not be construed as being limited to the description set forth herein. Therefore, the embodiments are described below only by reference to the accompanying drawings to explain various aspects of this specification. As used herein, the term "and / or" includes any of the relevant listed items and all combinations of one or more of the items.

[0029] Throughout this disclosure, the expression “at least one of a, b, and c” indicates only a; only b; only c; both a and b; both a and c; both b and c; all of a, b, and c; or variations thereof.

[0030] Example embodiments will be described in more detail below with reference to the accompanying drawings. The same or corresponding components are denoted by the same reference numerals regardless of the figure numbers, and redundant descriptions are omitted.

[0031] Although terms such as "first", "second", etc. may be used to describe various components, these components should not be limited by the above terms. The above terms are only used to distinguish one component from another.

[0032] An expression used in the singular includes the expression in the plural unless it has an obviously different meaning in the context.

[0033] In this specification, it will be understood that the terms "comprising", "having" and "including" are intended to indicate the presence of features, numbers, steps, actions, components, parts or a combination thereof disclosed in this specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, actions, components, parts or a combination thereof may exist or may be added.

[0034] It will be understood that when a layer, region, or component is referred to as being "formed on" another layer, region, or component, it may be directly or indirectly formed on the other layer, region, or component. That is, for example, intervening layers, regions, or components may be present. For ease of explanation, the sizes of components in the drawings may be exaggerated.

[0035] In other words, since the sizes and thicknesses of components in the drawings are arbitrarily shown for convenience of explanation, the embodiments described below are not limited thereto. When a certain embodiment may be variously implemented, a specific process order may be performed differently from the described order.

[0036] For example, two processes described in succession may be performed substantially simultaneously or in an order opposite to the order described. In the following embodiments, when layers, regions, elements, etc. are referred to as being "connected", it will be understood that they may be directly connected or there may be intermediate portions between layers, regions, or elements.

[0037] For example, when layers, regions, or elements are referred to as being “electrically connected,” they may be directly electrically connected or the layers, regions, or elements may be indirectly electrically connected with intervening elements being present.

[0038] Figure 1A is a perspective view of a display device 1 according to an exemplary embodiment, and Figure 1B FIG. 2 is a plan view showing a partially enlarged view of a display area DA in a display device 1 according to an exemplary embodiment. Figure 1A , the display device 1 may include a display area DA that emits light and a non-display area NDA that does not emit light. The non-display area NDA is adjacent to the display area DA and may surround (e.g., completely surround) the display area DA. In an exemplary embodiment, the display area DA may have a rectangular shape having longer sides in the ±x directions.

[0039] Alternatively, the display area DA may have a rectangular shape, a square shape, or a polygonal shape having longer sides in the ±y direction. The display device 1 may provide a predetermined image via light emitted from a plurality of pixel areas PA located in the display area DA. In this regard, Figure 1BThe first pixel region PA1, the second pixel region PA2, and the third pixel region PA3 arranged in the x-direction and the y-direction are shown. The first pixel region PA1, the second pixel region PA2, and the third pixel region PA3 may emit light of different colors from each other. In an exemplary embodiment, the first pixel region PA1 may be a red pixel region emitting red light, the second pixel region PA2 may be a blue pixel region emitting blue light, and the third pixel region PA3 may be a green pixel region emitting green light.

[0040] The first pixel area PA1, the second pixel area PA2, and the third pixel area PA3 may be surrounded by the non-pixel area NPA therebetween.

[0041] Reference Figure 1A , the display device 1 may include a light emitting panel 20 and a color panel 10 stacked in a thickness direction (z direction) of the display device 1 .

[0042] Figure 2A is a plan view of a color panel 10 according to an embodiment, Figure 2B It is along Figure 2A A cross-sectional view of the color panel 10 taken along line II-II'. Figure 2A and Figure 2B , the color panel 10 may include first color regions R, second color regions B, and third color regions G that may emit light of various colors, and light blocking regions BA surrounding the first color regions R, the second color regions B, and the third color regions G. The first color regions R, the second color regions B, and the third color regions G may allow light to pass therethrough and be surrounded by the light blocking regions BA.

[0043] The light blocking area BA may block light, and may be configured as a mesh type between the first color area R, the second color area B, and the third color area G. As shown in FIG.

[0044] The first color region R, the second color region B and the third color region G can be the same as those mentioned above. Figure 1B The first pixel area PA1, the second pixel area PA2, and the third pixel area PA3 described above are substantially the same, and the light blocking area BA may be the same as that described above with reference to FIG. Figure 1B In an exemplary embodiment, the first color region R, the second color region B, and the third color region G may be substantially the same in area and shape as described above with reference to FIG. Figure 1B The first pixel area PA1, the second pixel area PA2, and the third pixel area PA3 described above are substantially the same, and the light blocking area BA may be the same as the above-referenced pixel area PA1 in terms of area and shape. Figure 1BThe non-pixel area NPA described is substantially the same. In an exemplary embodiment, the first color area R, the second color area B, and the third color area G may overlap with the first pixel area PA1, the second pixel area PA2, and the third pixel area PA3, and the light blocking area BA may overlap with the non-pixel area NPA. The first color area R, the second color area B, and the third color area G may be distinguished according to the light emitted therefrom.

[0045] For example, the first color region R (see Figure 2A ) can emit the first color light Lr (see Figure 2B ), the second color area B (see Figure 2A ) can emit a second color light Lb (see Figure 2B ), and the third color region G (see Figure 2A ) can emit a third color light Lg (see Figure 2B ). The first color light Lr may indicate red light, the second color light Lb may indicate blue light, and the third color light Lg may indicate green light. The red light may have a peak wavelength of about 580nm to about 750nm. The green light may have a peak wavelength of about 495nm to about 580nm.

[0046] The blue light may have a peak wavelength of about 400 nm to about 495 nm. The incident light Lib may be the second color light and may change its color or transmittance while passing through the first color region R, the second color region B, and the third color region G.

[0047] Therefore, the first color light Lr, the second color light Lb, and the third color light Lg may be emitted from the color panel 10. The color panel 10 may include a first substrate 110, a light blocking layer 120, a color layer 130, and a color conversion transmission layer 140, as shown in FIG. Figure 2B The first substrate 110 is a light-transmitting substrate and may include a transparent glass material or a transparent resin material. The first substrate 110 may include a substrate mainly including SiO 2 In an exemplary embodiment, the first substrate 110 may include a polymer resin.

[0048] The polymer resin may include polyethersulfone, polyacrylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyarylate, polyimide, polycarbonate, cellulose triacetate, cellulose acetate propionate, etc. The light blocking layer 120 may include a first light blocking layer 121 and a second light blocking layer 122. The first light blocking layer 121 is disposed below the color layer 130, and the second light blocking layer 122 may be located on the color layer 130.

[0049] Figure 2BIt is shown that the light blocking layer 120 includes a first light blocking layer 121 and a second light blocking layer 122, but in an exemplary embodiment, one of the first light blocking layer 121 and the second light blocking layer 122 may be omitted. The first light blocking layer 121 and the second light blocking layer 122 may have various colors, such as black or white, black or blue, etc. For example, one of the first light blocking layer 121 and the second light blocking layer 122 (e.g., the second light blocking layer 122) may be black, and the other (e.g., the first light blocking layer 121) may be white or blue. Alternatively, the first light blocking layer 121 and the second light blocking layer 122 may have the same color as each other. The first light blocking layer 121 and / or the second light blocking layer 122 may include an opaque inorganic insulating material such as chromium oxide or molybdenum oxide, or an opaque insulating material such as black resin. The first light blocking layer 121 and / or the second light blocking layer 122 may include an organic insulating material such as white resin, blue resin, etc.

[0050] In an exemplary embodiment, when the first light blocking layer 121 includes a blue organic insulating material, the first light blocking layer 121 may include the same material as the second color filter 130b in the color layer 130, and may be manufactured together with the second color filter 130b when manufacturing the second color filter 130b. The color layer 130 may include a pattern of an organic material including a pigment or a dye. The color layer 130 may include a color filter located in each pixel area.

[0051] The color layer 130 may include a first color filter 130a located in the first pixel area PA1, a second color filter 130b located in the second pixel area PA2, and a third color filter 130c located in the third pixel area PA3. The first color filter 130a may include a first color (e.g., red) pigment or dye located on the first substrate 110. The first color filter 130a may be obtained by forming a first photosensitive color layer including a first color pigment or dye and patterning the first photosensitive color layer. The second color filter 130b may include a second color (e.g., blue) pigment or dye located on the first substrate 110. The second color filter 130b may be obtained by forming a second photosensitive color layer including a second color (e.g., blue) pigment or dye and patterning the second photosensitive color layer. The third color filter 130c may include a third color (e.g., green) pigment or dye located on the first substrate 110.

[0052] The third color filter 130c may be obtained by forming a third photosensitive color layer including a third color pigment or dye and patterning the third photosensitive color layer. The color conversion transmission layer 140 may be located on the color layer 130. The color conversion transmission layer 140 may include a color conversion portion or a transmission portion located in each of the pixel areas PA1 to PA3.

[0053] The color conversion transmission layer 140 may include a first pixel region PA1 (or a first color region R, Figure 2A ) in the first color conversion portion 140a, located in the second pixel area PA2 (or the second color area B, Figure 2A ) and the transmissive portion 140b in the third pixel area PA3 (or the third color area G, Figure 2A ). The first color conversion portion 140a overlaps the first color filter 130a in the first pixel area PA1 to convert the incident light Lib into the first color light Lr.

[0054] The first color conversion portion 140a may include a first quantum dot that is excited by the incident light Lib to emit a first color light Lr having a wavelength longer than that of the incident light Lib. The transmission portion 140b may overlap with the second color filter 130b in the second pixel area PA2 and may transmit the incident light Lib. Therefore, the second color light Lb may be emitted through the transmission portion 140b and the second color filter 130b. The second color light Lb is blue light having a peak wavelength in the same wavelength range as that of the incident light Lib.

[0055] The transmission part 140b may include scattering particles for improving optical efficiency. The second color conversion part 140c overlaps the third color filter 130c in the third pixel area PA3 to convert the incident light Lib into the third color light Lg.

[0056] The second color conversion portion 140c may include second quantum dots excited by the incident light Lib to emit third color light Lg having a wavelength longer than that of the incident light Lib.

[0057] First color conversion portion 140a, transmissive portion 140b, and second color conversion portion 140c may be formed by inkjet printing within a concave space defined by light blocking layer 120 (eg, second light blocking layer 122), respectively.

[0058] in this regard, Figure 2B It is shown that the first barrier layer 170 is located below the color conversion transmission layer 140 and the second barrier layer 180 is located on the color conversion transmission layer 140. For example, each of the first color conversion portion 140a, the transmission portion 140b, and the second color conversion portion 140c may be disposed between the first barrier layer 170 and the second barrier layer 180. The first barrier layer 170 and the second barrier layer 180 may include an inorganic insulating material, for example, silicon nitride, silicon oxide, or silicon oxynitride.

[0059] Figure 2BBoth the first barrier layer 170 and the second barrier layer 180 are shown, but in an exemplary embodiment, one of the first barrier layer 170 and the second barrier layer 180 may be omitted. The overcoat layer 190 may be located on the second barrier layer 180. The overcoat layer 190 may include an organic material such as a resin, and the organic material may be transparent. The upper surface of the overcoat layer 190 (e.g., the second surface opposite to the first surface facing the color conversion transmission layer 140) may be flat.

[0060] Figure 2B The color panel 10 is illustrated as including the upper cover layer 190 , but in an exemplary embodiment, the upper cover layer 190 may be omitted.

[0061] Figure 3 is a diagram showing each portion in the color conversion transmission layer 140 according to an exemplary embodiment. Figure 3 , the first color conversion part 140a converts the blue incident light Lib into the first color light Lr.

[0062] The first color conversion portion 140a may include a first photosensitive polymer 151 in which first quantum dots 152 and first scattering particles 153 are dispersed. The first quantum dots 152 are excited by the blue incident light Lib and may isotropically emit the first color light Lr having a wavelength longer than that of the blue incident light Lib. The first photosensitive polymer 151 may include an organic material that transmits light. The first scattering particles 153 scatter the blue incident light Lib that is not absorbed by the first quantum dots 152 so that more first quantum dots 152 are excited, and thus the color conversion rate of the first color conversion portion 140a may be improved. The first scattering particles 153 may include, for example, titanium oxide (TiO 2 ) or metal particles.

[0063] The first quantum dots 152 may be selected from group II-VI compounds, group III-V compounds, group IV-VI compounds, group IV elements, group IV compounds, and combinations thereof. The second color conversion portion 140c converts the blue incident light Lib into the third color light Lg.

[0064] The second color conversion portion 140c may include a second photosensitive polymer 161 in which second quantum dots 162 and second scattering particles 163 are dispersed. The second quantum dots 162 are excited by the blue incident light Lib and may isotropically emit third color light Lg having a wavelength longer than that of the blue incident light Lib. The second photosensitive polymer 161 includes an organic material that transmits light and may include the same material as that of the first photosensitive polymer 151. The second scattering particles 163 scatter the blue incident light Lib that is not absorbed by the second quantum dots 162 so that more second quantum dots 162 are excited, and thus the color conversion rate of the second color conversion portion 140c may be improved. The second scattering particles 163 may include, for example, titanium oxide (TiO 2 ) or metal particles, and may include the same material as that of the first scattering particles 153. The second quantum dots 162 may be selected from II-VI group compounds, III-V group compounds, IV-VI group compounds, IV group elements, IV group compounds, and combinations thereof.

[0065] The second quantum dot 162 may include the same material as the first quantum dot 152, and the size of the second quantum dot 162 may be smaller than the size of the first quantum dot 152. The transmissive portion 140b may transmit the blue incident light Lib as the second color light Lb. The transmissive portion 140b may include a third photosensitive polymer 171 in which third scattering particles 173 are dispersed. The third photosensitive polymer 171 may include, for example, an organic material that transmits light, such as silicone resin, epoxy resin, etc., and may include the same material as the first photosensitive polymer 151 and the second photosensitive polymer 161.

[0066] The third scattering particles 173 may scatter the blue incident light Lib, and may include the same material as those of the first and second scattering particles 153 and 163 .

[0067] Figure 4A is a plan view of a display panel according to an embodiment, and Figure 4B It is along Figure 4A A cross-sectional view of the display panel taken along line IV-IV'. Figure 4A and Figure 4B The light emitting panel 20 may include light emitting elements, for example, a first organic light emitting diode OLED1 , a second organic light emitting diode OLED2 , and a third organic light emitting diode OLED3 , in the x direction and the y direction.

[0068] The first organic light emitting diode OLED1, the second organic light emitting diode OLED2 and the third organic light emitting diode OLED3 may correspond to the above referenced Figure 1BThe first pixel area PA1, the second pixel area PA2 and the third pixel area PA3 described above (see Figure 1B ). Reference Figure 4B , the light emitting panel 20 may include a second substrate 210. The second substrate 210 may include a glass material, a metal material, an organic material, or the like.

[0069] For example, the second substrate 210 may include a 2 The pixel circuit layer 220 may be located on the second substrate 210 .

[0070] The pixel circuit layer 220 may include a first pixel circuit 220a, a second pixel circuit 220b, and a third pixel circuit 220c, and each of the first pixel circuit 220a, the second pixel circuit 220b, and the third pixel circuit 220c may include a plurality of electronic components, such as a transistor and at least one capacitor. The first pixel circuit 220a, the second pixel circuit 220b, and the third pixel circuit 220c may be electrically connected to the first organic light emitting diode OLED1, the second organic light emitting diode OLED2, and the third organic light emitting diode OLED3, respectively. The first organic light emitting diode OLED1 may include a first pixel electrode 241a, an intermediate layer 243, and an opposing electrode 245 sequentially stacked.

[0071] The second organic light emitting diode OLED2 may include a second pixel electrode 241b, an intermediate layer 243, and an opposing electrode 245 stacked sequentially, and the third organic light emitting diode OLED3 may include a third pixel electrode 241c, an intermediate layer 243, and an opposing electrode 245 stacked sequentially. The first pixel electrode 241a, the second pixel electrode 241b, and the third pixel electrode 241c may be spaced apart from each other. The edge of each of the first pixel electrode 241a, the second pixel electrode 241b, and the third pixel electrode 241c may be covered by the sixth insulating layer 230. The sixth insulating layer 230 may include a plurality of openings overlapping or exposing the first pixel electrode 241a, the second pixel electrode 241b, and the third pixel electrode 241c, respectively, and the first pixel electrode 241a, the second pixel electrode 241b, and the third pixel electrode 241c may all overlap with the intermediate layer 243 and the opposing electrode 245 thereon via the openings. In this regard, Figure 4B The first openings 231 of the sixth insulating layer 230 are shown overlapping or exposing the first pixel electrode 241a, the second pixel electrode 241b, and the third pixel electrode 241c, respectively. The first openings 231 of the sixth insulating layer 230 may define emission regions, respectively.

[0072] For example, the first opening 231 of the sixth insulating layer 230 defines the first emission area EA1, the second emission area EA2, and the third emission area EA3, respectively. The intermediate layer 243 includes an emission layer. The emission layer may include an organic material. For example, the emission layer may include a low molecular weight organic material or a polymer organic material. The emission layer may include a low molecular weight or polymer organic material that emits blue light.

[0073] In addition to the emission layer, the intermediate layer 243 may further include one or more functional layers selected from a hole transport layer (HTL), a hole injection layer (HIL), an electron transport layer (ETL), and an electron injection layer (EIL). The intermediate layer 243 (e.g., the emission layer and at least one functional layer) may be integrally disposed on the second substrate 210.

[0074] The opposing electrode 245 may include a transparent electrode or a semi-transparent electrode. The encapsulation layer 250 may be located above the second substrate 210 (or disposed on the second substrate 210) to cover the first organic light emitting diode OLED1, the second organic light emitting diode OLED2, and the third organic light emitting diode OLED3. The encapsulation layer 250 may include at least one inorganic encapsulation layer and at least one organic encapsulation layer.

[0075] In an exemplary embodiment, the encapsulation layer 250 may have a structure in which a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer are sequentially overlapped. The first organic light emitting diode OLED1, the second organic light emitting diode OLED2, and the third organic light emitting diode OLED3 may respectively emit light of the same color, for example, blue light Lb.

[0076] The blue light Lb emitted from the first organic light emitting diode OLED1, the second organic light emitting diode OLED2, and the third organic light emitting diode OLED3 may correspond to the above reference numeral 1. Figure 2B Describes the incident light Lib.

[0077] The blue light Lb emitted from the first organic light emitting diode OLED1, the second organic light emitting diode OLED2, and the third organic light emitting diode OLED3 may be incident on the color panel 10 as the incident light Lib, and pass through the above-described color panel 10. Depending on which portion of the color panel 10 the incident light Lib is incident on, the color panel 10 may convert the incident light Lib into the first color light Lr or the third color light Lg, or transmit the incident light Lib as the second color light Lb.

[0078] Figure 5 is a cross-sectional view of a display device 1 according to an exemplary embodiment. Figure 5The display device 1 may include a light emitting panel 20 and a color panel 10 arranged in a light emitting direction of the light emitting panel 20 (eg, above the light emitting panel 20). The bonding layer 260 may be located between the light emitting panel 20 and the color panel 10.

[0079] The bonding layer 260 may include an organic material.

[0080] Refer to above Figures 2A to 4B A detailed example of the light emitting panel 20 and the color panel 10 is described. Blue light Lb emitted from the first organic light emitting diode OLED1 of the light emitting panel 20 is incident on the first color conversion part 140a of the color panel 10 and may be converted into red light Lr by the first color conversion part 140a.

[0081] After the red light Lr passes through the first color filter 130a, the color purity of the red light Lr can be further improved. The blue light Lb emitted from the second organic light emitting diode OLED2 of the light emitting panel 20 can sequentially pass through the transmission part 140b and the second color filter 130b of the color panel 10. The stacked structure of the transmission part 140b and the second color filter 130b does not include quantum dots, and therefore, the blue light Lb incident on the stacked structure of the transmission part 140b and the second color filter 130b is not converted into another color.

[0082] The blue light Lb passing through the transmission part 140b and the second color filter 130b is emitted away from the display device 1. The blue light Lb emitted from the third organic light emitting diode OLED3 of the light emitting panel 20 is incident on the second color conversion part 140c of the color panel 10 and may be converted into green light Lg in the second color conversion part 140c.

[0083] After the green light Lg passes through the third color filter 130c, the color purity of the green light Lg may be further improved. The width of the first emission area EA1 of the light emitting panel 20 may be equal to, less than, or greater than Figure 2B Here, the width of the first color region R may be the width of the region defined by the light blocking layer 120 and may be substantially equal to the width of the first pixel region PA1. The width of the second emission region EA2 of the light emitting panel 20 may be equal to, less than, or greater than Figure 2B The width of the second color region B of the color panel 10 may be equal to, less than, or greater than the width of the third color region G of the color panel 10. For example, the width of the second color region B may be the width of the region defined by the light blocking layer 120, and may be substantially equal to the width of the second pixel region PA2. The width of the third emission region EA3 of the light emitting panel 20 may be equal to, less than, or greater than the width of the third color region G of the color panel 10.

[0084] For example, the width of the third color region G may be the width of a region defined by the light blocking layer 120 and may be substantially equal to the width of the third pixel region PA3.

[0085] Figure 6 2 is a circuit diagram of a pixel circuit 220n connected to a light emitting diode in a display device according to an exemplary embodiment. Figure 6 The pixel electrode of the organic light emitting diode OLED is connected to the pixel circuit 220n, and the opposite electrode of the organic light emitting diode OLED can be connected to the common power supply voltage ELVSS. The organic light emitting diode OLED can emit light of a predetermined brightness according to the current supplied from the pixel circuit 220n.

[0086] Figure 6 The organic light emitting diode OLED may correspond to the above reference Figure 5 Each of the first, second, and third organic light emitting diodes OLED1, OLED2, and OLED3 described above may control the amount of current flowing from the driving power voltage ELVDD to the common power voltage ELVSS via the organic light emitting diode OLED in response to the data signal.

[0087] The pixel circuit 220n may include a driving transistor M1, a switching transistor M2, a sensing transistor M3, and a storage capacitor Cst. Each of the driving transistor M1, the switching transistor M2, and the sensing transistor M3 may be an oxide semiconductor thin film transistor including an active layer including an oxide semiconductor or a silicon semiconductor thin film transistor including an active layer including polysilicon.

[0088] Each of the driving transistor M1, the switching transistor M2, and the sensing transistor M3 may include a first electrode and a second electrode different from the gate electrode. Depending on the type of the transistor, the first electrode may be one of the source electrode and the drain electrode, and the second electrode may be the other. The first electrode of the driving transistor M1 may be connected to a driving power supply voltage line VDL supplying a driving power supply voltage ELVDD, and the second electrode of the driving transistor M1 may be connected to a pixel electrode of the organic light emitting diode OLED. The gate electrode of the driving transistor M1 may be connected to a first node N1.

[0089] The driving transistor M1 may control the amount of current flowing from the driving power supply voltage ELVDD to the organic light emitting diode OLED in response to the voltage of the first node N1. The first electrode of the switching transistor M2 is connected to the data line DL, and the second electrode may be connected to the first node N1. The gate electrode of the switching transistor M2 may be connected to the scan line SL.

[0090] When a scan signal is supplied to the scan line SL, the switching transistor M2 is turned on to electrically connect the data line DL to the first node N1. A first electrode of the sensing transistor M3 may be connected to the second electrode of the driving transistor M1, and a second electrode of the sensing transistor M3 may be connected to the sensing line SENL. A gate electrode of the sensing transistor M3 may be connected to the control line CL. When a control signal is supplied to the control line CL, the sensing transistor M3 is turned on to electrically connect the sensing line SENL to the second electrode of the driving transistor M1.

[0091] The sensing transistor M3 may sense characteristic information of the driving transistor M1. The storage capacitor Cst is connected between the first node N1 and the second electrode of the driving transistor M1 to store a voltage of the first node N1.

[0092] A first electrode of the storage capacitor Cst may be connected to the gate electrode of the driving transistor M1 , and a second electrode of the storage capacitor Cst may be connected to the second electrode of the driving transistor M1 . Figure 6 The driving transistor M1 , the switching transistor M2 , and the sensing transistor M3 are illustrated as N-type metal oxide semiconductor (NMOS) transistors, but one or more exemplary embodiments are not limited thereto.

[0093] For example, at least one of the driving transistor M1 , the switching transistor M2 , and the sensing transistor M3 may be a P-type metal oxide semiconductor (PMOS) transistor. Figure 6 It is illustrated that the pixel circuit 220n includes three transistors, but one or more exemplary embodiments are not limited thereto.

[0094] For example, the pixel circuit 220n may include four or more transistors.

[0095] Figure 7 is a plan view of a pixel circuit, a power supply line, and a signal line in a light emitting panel of a display device according to an exemplary embodiment, Figure 8 is with Figure 7 A plan view of an organic light emitting diode in which a pixel circuit, a power line and a signal line overlap, and Fig. 9 It is along Figure 8 A cross-sectional view taken along line IX-IX'. Figure 7, the first power line (hereinafter, referred to as the common power voltage line VSL) may extend in a first direction (e.g., ±y direction). The common power voltage lines VSL may be spaced apart from each other in a second direction (e.g., ±x direction) intersecting the first direction. A plurality of data lines (e.g., the first data line DL1, the second data line DL2, and the third data line DL3), a second power line (hereinafter, referred to as the driving power voltage line VDL), and a sensing line SENL may be located between adjacent common power voltage lines VSL. The first data line DL1, the second data line DL2, the third data line DL3, the driving power voltage line VDL, and the sensing line SENL may extend in the first direction.

[0096] The first data line DL1, the second data line DL2, and the third data line DL3 may be spaced apart from each other in the second direction, and may be adjacent to one of the two common power supply voltage lines VSL between the two common power supply voltage lines VSL. One or more auxiliary lines may be provided in a direction intersecting the common power supply voltage line VSL and the driving power supply voltage line VDL, for example, in the second direction (±x direction). In an exemplary embodiment, Figure 7 The first auxiliary line AL1 and the second auxiliary line AL2 are shown. The first auxiliary line AL1 and the second auxiliary line AL2 may be spaced apart from each other. For example, the first auxiliary line AL1 may be adjacent to the scan line SL, and the second auxiliary line AL2 may be adjacent to the control line CL. One of the first auxiliary line AL1 and the second auxiliary line AL2 may be electrically connected to the common power voltage line VSL, and the other may be electrically connected to the driving power voltage line VDL. Because the first auxiliary line AL1 and / or the second auxiliary line AL2 are electrically connected to the common power voltage line VSL or the driving power voltage line VDL, the line to which the common power voltage ELVSS or the driving power voltage ELVDD is applied may have a grid structure, and the grid structure has a grid shape. The grid structure may prevent a drop in a voltage applied via the common power voltage line VSL or the driving power voltage line VDL. In an exemplary embodiment, Figure 7 A structure in which the first auxiliary line AL1 is electrically connected to the common power voltage line VSL and the second auxiliary line AL2 is electrically connected to the driving power voltage line VDL is shown.

[0097] For example, the second auxiliary line AL2 may be electrically connected to the driving power supply voltage line VDL via the twentieth contact hole CT20, and the following will refer to Fig.10 The electrical connection between the first auxiliary line AL1 and the common power voltage line VSL is described.

[0098] Each of the scan line SL and the control line CL may extend in a second direction (±x direction) intersecting the first direction, and a plurality of electronic elements (eg, transistors and storage capacitors) may be located between the scan line SL and the control line CL. Figure 7 and Figure 8 As shown in FIG. 1 , a plurality of pixel electrodes (eg, first pixel electrode 241a, second pixel electrode 241b, and third pixel electrode 241c) may be located between adjacent common power voltage lines VSL. The first pixel electrode 241a, second pixel electrode 241b, and third pixel electrode 241c may correspond to different pixel regions, respectively.

[0099] The first pixel electrode 241 a may be a pixel electrode of the first organic light emitting diode OLED1 , the second pixel electrode 241 b may be a pixel electrode of the second organic light emitting diode OLED2 , and the third pixel electrode 241 c may be a pixel electrode of the third organic light emitting diode OLED3 .

[0100] The first pixel electrode 241a may be connected to a pixel circuit. Figure 7 and Figure 8 The first pixel electrode 241a is shown to be electrically connected to the first drive transistor M11, the first switch transistor M12, the first sensing transistor M13, and the first storage capacitor Cst1. The first drive transistor M11 may include a first active layer A1 and a first gate electrode G1. The first active layer A1 may include a first high-concentration impurity region B1 and a second high-concentration impurity region C1, and the first channel region may be located between the first high-concentration impurity region B1 and the second high-concentration impurity region C1. The first high-concentration impurity region B1 and the second high-concentration impurity region C1 may be doped with impurities having a concentration higher than that of the first channel region.

[0101] The first gate electrode G1 may overlap with the first channel region of the first active layer A1. One of the first high-concentration impurity region B1 and the second high-concentration impurity region C1 of the first active layer A1 may be connected to the driving power supply voltage line VDL, and the other may be connected to the first storage capacitor Cst1. For example, the first high-concentration impurity region B1 may be connected to the first electrode CE1 of the first storage capacitor Cst1 via the first contact hole CT1, and the second high-concentration impurity region C1 may be connected to the driving power supply voltage line VDL via the second contact hole CT2.

[0102] A portion of the first electrode of the first storage capacitor Cst1 connected to the first high-concentration impurity region B1 and a portion of the driving power voltage line VDL connected to the second high-concentration impurity region C1 may correspond to the above reference numerals, respectively. Figure 6The second electrode and the first electrode of the driving transistor M1 described above. The first switching transistor M12 may include a second active layer A2 and a second gate electrode G2. The second active layer A2 may include a first high-concentration impurity region B2 and a second high-concentration impurity region C2, and the second channel region may be located between the first high-concentration impurity region B2 and the second high-concentration impurity region C2. The second gate electrode G2 may overlap the second channel region of the second active layer A2.

[0103] The second gate electrode G2 may be a portion of the scan line SL. The scan line SL extending in the second direction (±x direction) may include a first extension portion SL-P extending in the first direction (±y direction) from one side of the scan line SL, and a portion of the first extension portion SL-P may correspond to the second gate electrode G2.

[0104] The first extension portion SL-P may be adjacent to the first data line DL1. One of the first and second high concentration impurity regions B2 and C2 of the second active layer A2 may be connected to the first data line DL, and the other may be connected to the first storage capacitor Cst1 via the connection metal NM.

[0105] For example, the first high-concentration impurity region B2 may be connected to the connection metal NM via the third contact hole CT3, and the second high-concentration impurity region C2 may be connected to the first data line DL1 via the fourth contact hole CT4. The first sensing transistor M13 may include a third active layer A3 and a third gate electrode G3. The third active layer A3 may include a first high-concentration impurity region B3 and a second high-concentration impurity region C3, and the third channel region may be located between the first high-concentration impurity region B3 and the second high-concentration impurity region C3.

[0106] The third gate electrode G3 may overlap the third channel region of the third active layer A3. The third gate electrode G3 may be a portion of the control line CL. The control line CL extending in the second direction (±x direction) may include a second extension portion CL-P extending in the first direction (±y direction) from one side of the control line CL, and a portion of the second extension portion CL-P may be the third gate electrode G3.

[0107] The second extension portion CL-P may extend between the sensing line SENL and the driving power voltage line VDL. One of the first and second high concentration impurity regions B3 and C3 of the third active layer A3 may be connected to the sensing line SENL, and the other may be connected to the first storage capacitor Cst1.

[0108] For example, the first high-concentration impurity region B3 may be connected to the sensing line SENL via the sixth contact hole CT6, and the second high-concentration impurity region C3 may be electrically connected to the first electrode of the first storage capacitor Cst1 via the seventh contact hole CT7. The first storage capacitor Cst1 may include at least two electrodes. In an exemplary embodiment, Figure 7 The first storage capacitor Cst1 is shown to include a first electrode CE1, a second electrode CE2, and a third electrode CE3. The first electrode CE1, the second electrode CE2, and the third electrode CE3 may overlap each other. In a plan view, the first storage capacitor Cst1 (e.g., the first electrode CE1, the second electrode CE2, and the third electrode CE3) may be located between the driving power supply voltage line VDL and the first data line DL1.

[0109] The first electrode CE1, the second electrode CE2, and the third electrode CE3 may be connected to different elements from each other, respectively. Fig. 9 , the first electrode CE1 , the second electrode CE2 , and the third electrode CE3 may be disposed over the second substrate 210 .

[0110] The first electrode CE1 may be disposed above the second electrode CE2, and the second electrode CE2 may be disposed above the third electrode CE3. The third electrode CE3 may be directly located on the upper surface of the second substrate 210. The third electrode CE3 may include a metal, such as molybdenum (Mo), copper (Cu), aluminum (Al), titanium (Ti), etc., and may have a single-layer or multi-layer structure including the above materials. A portion of the third electrode CE3 may be directly located below the first active layer A1 of the first driving transistor M11 to overlap with the first active layer A1.

[0111] The first insulating layer IL1 may be disposed on the third electrode CE3. The first insulating layer IL1 may include an inorganic insulating material such as silicon nitride, silicon oxide, and / or silicon oxynitride. The first active layer A1 may be located on the first insulating layer IL1. Fig. 9 The first active layer A1 is shown, but similar to the first active layer A1, the above reference Figure 7 The described second active layer A2 and third active layer A3 may be located on the first insulating layer IL1. The second insulating layer IL2 may be located on the first active layer A1. The second insulating layer IL2 may include an inorganic insulating material such as silicon nitride, silicon oxide, and / or silicon oxynitride. In an exemplary embodiment, the first active layer A1 may be disposed between a portion of the first insulating layer IL1 and a portion of the second insulating layer IL2.

[0112] The second electrode CE2 may be located on the second insulating layer IL2. The second electrode CE2 may include a metal, such as molybdenum (Mo), copper (Cu), aluminum (Al), titanium (Ti), etc., and may have a single-layer or multi-layer structure including the above materials. The first portion of the second electrode CE2 may correspond to the first gate electrode G1 described above. The second portion of the second electrode CE2 may be connected to the connection metal NM via a fifth contact hole CT5 located in the third insulating layer IL3. The second electrode CE2 may be covered by the third insulating layer IL3. The third insulating layer IL3 may include an inorganic insulating material such as silicon nitride, silicon oxide or silicon oxynitride.

[0113] The first electrode CE1 may be disposed on the third insulating layer IL3. In an exemplary embodiment, the first electrode CE1 may include a multi-electrode including a plurality of sub-layers located above and below the insulating layer and connected to each other via contact holes located in the insulating layer. For example, Fig. 9 It is shown that the first electrode CE1 includes a first sublayer CE11 and a second sublayer CE12 respectively located on and below the fourth insulating layer IL4. The first sublayer CE11 and the second sublayer CE12 may include metals, such as molybdenum (Mo), copper (Cu), aluminum (Al), titanium (Ti), etc., and may have a single-layer or multi-layer structure including the above materials. The first sublayer CE11 and the second sublayer CE12 may be connected to each other via an eighth contact hole CT8 located in the fourth insulating layer IL4. In an exemplary embodiment, the first electrode CE1 may include one of the first sublayer CE11 and the second sublayer CE12. For example, the first electrode CE1 may be formed only by the first sublayer CE11 or only by the second sublayer CE12.

[0114] The first electrode CE1 may have the same voltage level as that of the third electrode CE3. For example, the first electrode CE1 may be connected to the third electrode CE3 via a contact hole passing through at least one insulating layer between the first electrode CE1 and the third electrode CE3. Fig. 9 It is shown that the first electrode CE1 is connected to the third electrode CE3 via a ninth contact hole CT9 passing through the first insulating layer IL1 , the second insulating layer IL2 , and the third insulating layer IL3 .

[0115] Since the capacitance of the first storage capacitor Cst1 is based on the sum of the capacitance between the first electrode CE1 and the second electrode CE2 and the capacitance between the second electrode CE2 and the third electrode CE3 , the capacitance of the first storage capacitor Cst1 may be increased compared to a case where two electrodes are provided.

[0116] The driving power supply voltage line VDL may have a double-line structure. The driving power supply voltage line VDL may include a first sub-driving power supply voltage line VDL1 and a second sub-driving power supply voltage line VDL2 located on and below the fourth insulating layer IL4, respectively. The first sub-driving power supply voltage line VDL1 may be connected to the fourth insulating layer IL4 via a twelfth contact hole CT12 (see Figure 7 ) is connected to the second sub driving power supply voltage line VDL2. The fourth insulating layer IL4 may include an inorganic insulating material and / or an organic insulating material.

[0117] Similarly, the sensing line SENL may have a double-line structure. The sensing line SENL may include a first sub-sensing line SENL1 ​​and a second sub-sensing line SENL2 located on and below the fourth insulating layer IL4, respectively. The first sub-sensing line SENL1 ​​and the second sub-sensing line SENL2 may be connected to the fourth insulating layer IL4 via an eleventh contact hole CT11 (see FIG. Figure 7 ) are connected to each other.

[0118] Although not in Fig. 9 As shown in the above reference Figure 7 Each of the described first, second, and third data lines DL1, DL2, and DL3 may have a double line structure in which the double lines are connected to each other via a contact hole located in the fourth insulating layer IL4.

[0119] The fifth insulating layer IL5 may be disposed on the first electrode CE1, the driving power supply voltage line VDL, and the sensing line SENL located on the same layer (e.g., the third insulating layer IL3). The fifth insulating layer IL5 may include an inorganic insulating material and / or an organic insulating material. The organic insulating material may include an organic material such as acrylic acid, benzocyclobutene (BCB), polyimide, hexamethyldisiloxane (HMDSO), etc.

[0120] The first pixel electrode 241a may be located on the fifth insulating layer IL5 and may be connected to the first pixel electrode 241a through a twelfth contact hole CT12 (see FIG. Figure 7 ) is electrically connected to electronic components of the pixel circuit, for example, a first storage capacitor Cst1. Fig. 9 The first pixel electrode 241a is shown to be connected to a portion of an electronic element, for example, the first electrode CE1 of the first storage capacitor Cst1. Similarly, the second pixel electrode 241b is also located on the fifth insulating layer IL5, and although not Fig. 9 However, the third pixel electrode 241c (see Figure 8 ) may be located on the fifth insulating layer IL5.

[0121] The sixth insulating layer 230 is disposed on the first pixel electrode 241a and may include a first opening 231 exposing the first pixel electrode 241a. The intermediate layer 243 and the opposite electrode 245 may be located on the first pixel electrode 241a exposed by the first opening 231. The first pixel electrode 241a, the intermediate layer 243, and the opposite electrode 245 sequentially stacked may form a first organic light emitting diode OLED1. The first opening 231 of the sixth insulating layer 230 may define a first emission area EA1 of the first organic light emitting diode OLED1.

[0122] Refer to above Figures 7 to 9 The described structure of the first organic light emitting diode OLED1 and the pixel circuit connected to the first organic light emitting diode OLED1 can also be applied to the second organic light emitting diode OLED2 and the pixel circuit connected to the second organic light emitting diode OLED2 and the third organic light emitting diode OLED3 and the pixel circuit connected to the third organic light emitting diode OLED3. Figure 7 and Figure 8 , the second pixel electrode 241b of the second organic light emitting diode OLED2 may be electrically connected to the second driving transistor M21, the second switching transistor M22, the second sensing transistor M23, and the second storage capacitor Cst2. Similarly, the third pixel electrode 241c of the third organic light emitting diode OLED3 may be electrically connected to the third driving transistor M31, the third switching transistor M32, the third sensing transistor M33, and the third storage capacitor Cst3.

[0123] The structures of the second driving transistor M21, the second switching transistor M22, the second sensing transistor M23 and the second storage capacitor Cst2 are similar to those of the first driving transistor M11, the first switching transistor M12, the first sensing transistor M13 and the first storage capacitor Cst1, and thus their description is omitted. The structures of the third driving transistor M31, the third switching transistor M32, the third sensing transistor M33 and the third storage capacitor Cst3 are similar to those of the first driving transistor M11, the first switching transistor M12, the first sensing transistor M13 and the first storage capacitor Cst1, and thus their description is omitted.

[0124] The first storage capacitor Cst1 and the first pixel electrode 241a (see FIG. 24A ) are connected to each other via a tenth contact hole CT10 defined in the fifth insulating layer IL5. Fig. 9 ) Similarly, the second storage capacitor Cst2 and the second pixel electrode 241b may be connected to the fifth insulating layer IL5 via a nineteenth contact hole CT19 (see Figure 8) are connected to each other. The third storage capacitor Cst3 and the third pixel electrode 241c may be connected to each other via an eighteenth contact hole CT18 (see Figure 8 The tenth contact hole CT10 corresponds to a connection point (first connection point) between the first storage capacitor Cst1 and the first pixel electrode 241a, the nineteenth contact hole CT19 corresponds to a connection point (second connection point) between the second storage capacitor Cst2 and the second pixel electrode 241b, and the eighteenth contact hole CT18 corresponds to a connection point between the third storage capacitor Cst3 and the third pixel electrode 241c.

[0125] The first to third storage capacitors Cst1 , Cst2 , and Cst3 are located between two adjacent common power voltage lines VSL and may be arranged in one direction (a direction in which the common power voltage lines VSL extend, for example, ±y directions).

[0126] The second pixel electrode 241b overlaps some portions of the first storage capacitor Cst1, the second storage capacitor Cst2, and the third storage capacitor Cst3, and thus may have a length (length in the first direction, L2) relatively smaller than the length of the other pixel electrodes used for connection between one of the first storage capacitor Cst1 and the third storage capacitor Cst3 and the pixel electrode electrically connected thereto. For example, the length L2 of the second pixel electrode 241b in the first direction may be smaller than the length L1 of the first pixel electrode 241a in the first direction and the length L3 of the third pixel electrode 241c in the first direction, as shown in FIG. Figure 8 As shown in . The inventive concept is not limited thereto. In an exemplary embodiment, one of the first pixel electrode 241a, the second pixel electrode 241b, and the third pixel electrode 241c may have a length smaller than the length of another one of the first pixel electrode 241a, the second pixel electrode 241b, and the third pixel electrode 241c. The eighteenth contact hole CT18 (i.e., a connection point between the third storage capacitor Cst3 and the third pixel electrode 241c) may be located between a first virtual line VL1 passing through one side edge of the second pixel electrode 241b and a second virtual line VL2 passing through one side edge of the third pixel electrode 241c.

[0127] Fig.10 It is along Figure 8 A cross-sectional view taken along line XX', and Fig.11 It is along Figure 8 A cross-sectional view taken along line XI-XI'.

[0128] Reference Fig.10 , the common power supply voltage line VSL may have a double-line structure. For example, as described above with reference to Figure 8 and Fig. 9 The driving power supply voltage line VDL described in Fig. 9 ) and the sensing line SENL (see Fig. 9 ), the common power voltage line VSL may include a first sub-common power voltage line VSL1 and a second sub-common power voltage line VSL2 overlapping each other, and a fourth insulating layer IL4 is located between the first sub-common power voltage line VSL1 and the second sub-common power voltage line VSL2. The first sub-common power voltage line VSL1 and the second sub-common power voltage line VSL2 may be electrically connected to each other via a thirteenth contact hole CT13 passing through the fourth insulating layer IL4.

[0129] At least one lower line (eg, a signal line) may be disposed below the common power supply voltage line VSL. In an exemplary embodiment, Fig.10 It is shown that the first lower line UL1 and the second lower line UL2 are located below the common power voltage line VSL.

[0130] The first lower line UL1 may be disposed adjacent to the scan line SL (see Figure 7 ) and control line CL (see Figure 7 ) and may include the same material as the scan line SL and the control line CL. The second down line UL2 is disposed on the same layer as the third electrode CE3 of the first storage capacitor Cst1 (see Figure 7 ) and the first auxiliary line AL1 and the second auxiliary line AL2 on the same layer (eg, the second substrate 210), and may include the same material as that of the third electrode CE3 and the first auxiliary line AL1 and the second auxiliary line AL2. Fig.10 It is shown that the first auxiliary line AL1 is disposed on the same layer as the second lower line UL2. Figure 8 and Fig. 9 As described, the first auxiliary line AL1 may be electrically connected to the common power supply voltage line VSL or the driving power supply voltage line VDL, and in an exemplary embodiment, Fig.10 It is shown that the first auxiliary line AL1 and the common power voltage line VSL are electrically connected to each other via the seventeenth contact hole CT17 .

[0131] The common power supply voltage line VSL may be connected to the first down line UL1 via the fourteenth contact hole CT14, and may be connected to the second down line UL2 via the fifteenth contact hole CT15. The first down line UL1 and the second down line UL2 may have the same voltage level as the voltage level of the common power supply voltage line VSL. The first down line UL1 and the second down line UL2 may have a length smaller than that of the common power supply voltage line VSL, and may be electrically connected to the common power supply voltage line VSL and may overlap with the common power supply voltage line VSL. When the display device is a large display device, there may be a voltage drop problem due to the resistance of the common power supply voltage line VSL itself. However, as described above, when the common power supply voltage line VSL has a double-line structure and / or is connected to the first down line UL1 and the second down line UL2, the voltage drop due to the resistance of the common power supply voltage line VSL itself can be effectively prevented.

[0132] The common power voltage line VSL may be electrically connected to a connection electrode 261 disposed on the fifth insulating layer IL5. The connection electrode 261 is disposed at a position adjacent to the first pixel electrode 241a (see Fig. 9 ) on the same layer (eg, the fifth insulating layer IL5) as the first pixel electrode 241a, and may include the same material as the first pixel electrode 241a. The connection electrode 261 may be connected to the common power voltage line VSL via a sixteenth contact hole CT16 passing through the fifth insulating layer IL5.

[0133] The sixth insulating layer 230 may be disposed on the connection electrode 261. The sixth insulating layer 230 may include a second opening 232 overlapping the connection electrode 261. The second opening 232 is different from the second opening 232 in the above reference. Fig. 9 The first opening 231 described above Fig. 9 The depicted first opening 231 exposes electronic components of the pixel circuit, for example, the first pixel electrode 241 connected to the first storage capacitor Cst1. However, the second opening 232 exposes the connection electrode 261 connected to the common power supply voltage line VSL and may be provided for electrical connection between the opposite electrode 245 and the connection electrode 261.

[0134] The intermediate layer 243 may be disposed on the sixth insulating layer 230 and may include a through hole 243h located within the second opening 232. Fig.10As shown in the enlarged view of , the intermediate layer 243 may include a first functional layer 243A, an emission layer 243B, and a second functional layer 243C. In this case, the through hole 243h may pass through the first functional layer 243A, the emission layer 243B, and the second functional layer 243C, and may be manufactured by a laser drilling process. The relative electrode 245 located on the intermediate layer 243 may be in direct contact with the connecting electrode 261 via the through hole 243h. The first functional layer 243A may include a hole injection layer and / or a hole transport layer, and the second functional layer 243C may include an electron injection layer and / or an electron transport layer.

[0135] The opposing electrode 245 has a relatively large area so as to completely cover the display area. Due to the voltage drop of the opposing electrode 245 itself, an area of ​​the opposing electrode 245 may have a resistance different from the resistance of another area of ​​the opposing electrode 245. However, since the common power supply voltage line VSL passing through the display area is electrically connected to the opposing electrode 245 as in one or more exemplary embodiments, the voltage drop due to the resistance of the opposing electrode 245 itself can be prevented.

[0136] The connection electrode 261 may overlap the common power voltage line VSL and may be spaced apart from adjacent connection electrodes 261. Figure 8 As shown in , one connection electrode (hereinafter, referred to as the first connection electrode 261A) may be spaced apart from another connection electrode (hereinafter, referred to as the second connection electrode 261B) in the second direction, and may also be spaced apart from another connection electrode (hereinafter, referred to as the third connection electrode 261C) in the first direction. Another connection electrode (hereinafter, referred to as the fourth connection electrode 261D) may be spaced apart from the second connection electrode 261B and the third connection electrode 261C in the first direction and the second direction, respectively.

[0137] The edges of the first connection electrode 261A, the second connection electrode 261B, the third connection electrode 261C, and the fourth connection electrode 261D are covered by the sixth insulating layer 230 (see Fig.10 ). The sixth insulating layer 230 may include a second opening 232 overlapping the first connection electrode 261A, the second connection electrode 261B, the third connection electrode 261C, and the fourth connection electrode 261D, respectively. For example, the second opening 232 may be provided to overlap the first connection electrode 261A, the second connection electrode 261B, the third connection electrode 261C, and the fourth connection electrode 261D, respectively. In other words, the second opening 232 may be positioned to overlap the first connection electrode 261A, the second connection electrode 261B, the third connection electrode 261C, and the fourth connection electrode 261D, respectively.

[0138] The second opening 232 may expose connection electrodes, for example, the first connection electrode 261A, the second connection electrode 261B, the third connection electrode 261C, and the fourth connection electrode 261D. Fig.10 As shown in FIG. 2 , all of the second openings 232 are used for electrical connection between the counter electrode 245 and the common power voltage line VSL.

[0139] Reference Fig.11 , the common power supply voltage line VSL can be connected to as shown above Fig.10 The first down line UL1 and the second down line UL2 described above may be electrically connected to the connection electrode 261, for example, the second connection electrode 261B, via the sixteenth contact hole CT16 located in the fifth insulating layer IL5. The second connection electrode 261B is covered by the sixth insulating layer 230, and the second opening 232 may expose the second connection electrode 261B. The intermediate layer 243 and the relative electrode 245 may be sequentially stacked in the second opening 232 without the presence of a through hole passing through the intermediate layer 243, and therefore, the relative electrode 245 may not contact the second connection electrode 261B. In an exemplary embodiment, when the intermediate layer 243 includes a through hole exposing the second connection electrode 261B and formed in the second opening 232 by a laser drilling process or the like, the relative electrode 245 may contact the second connection electrode 261B via the through hole, and this structure may be similar to the above-referenced structure. Fig.10 The structure described is the same.

[0140] Reference Figure 8 , Fig.10 and Fig.11 The first organic light emitting diode OLED1, the second organic light emitting diode OLED2 and the third organic light emitting diode OLED3, which are separated from each other, are arranged between two common power supply voltage lines VSL, and the connection electrodes 261 (for example, the first connection electrode 261A, the second connection electrode 261B, the third connection electrode 261C and the fourth connection electrode 261D) can all overlap with the two common power supply voltage lines VSL.

[0141] The sixth insulating layer 230 may include second openings 232 overlapping the first connection electrode 261A, the second connection electrode 261B, the third connection electrode 261C, and the fourth connection electrode 261D, respectively. The second openings 232 are provided for electrical connection between the opposing electrode 245 and the connection electrode 261, but electrical connection between the opposing electrode 245 and the common power supply voltage line VSL via the second openings 232 may be selectively made depending on whether a laser drilling process is performed. Figures 8 to 11As described, the opposite electrode 245 and the common power voltage line VSL are electrically connected to each other via the second opening 232 exposing the first connection electrode 261A among the first, second, third, and fourth connection electrodes 261A, 261B, 261C, and 261D.

[0142] In an exemplary embodiment, the opposing electrode 245 and the common power voltage line VSL may be electrically connected to each other via one, two or more second openings 232 among a plurality of second openings 232 exposing the first, second, third, and fourth connection electrodes 261A, 261B, 261C, and 261D.

[0143] exist Figures 8 to 10 , the first auxiliary line AL1 and the second auxiliary line AL2 are disposed on the same layer as the layer of the third electrode CE3 and include the same material as the material of the third electrode CE3, but one or more exemplary embodiments are not limited thereto. In an exemplary embodiment, the first auxiliary line AL1 and the second auxiliary line AL2 may be disposed on the same layer as the layer of the first pixel electrode 241a, the second pixel electrode 241b, and the third pixel electrode 241c (e.g., the fifth insulating layer IL5), and may include the same material as the material of the first pixel electrode 241a, the second pixel electrode 241b, and the third pixel electrode 241c. Such an arrangement may allow the space below the first auxiliary line AL1 and the second auxiliary line AL2 to be effectively utilized. For example, the size or stacking structure of the line, transistor, or storage capacitor between the second substrate 210 and the first auxiliary line AL1 and the second auxiliary line AL2 may be changed. In an exemplary embodiment, the area of ​​the storage capacitor may be relatively larger than Figure 8 The area of ​​the storage capacitor may be reduced, or the scan line SL or the control line CL may be configured to have a double-line or triple-line structure, and thus the resistance of the scan line SL or the control line CL may be reduced.

[0144] Fig.12 is a plan view partially showing a display device according to an exemplary embodiment. Fig.12 shows a color panel with Figure 8 The state in which the light-emitting panels overlap.

[0145] Reference Fig.12 , connect electrode 261 with the Figure 8The two common power supply voltage lines VSL described as being spaced apart from each other overlap. For example, the two common power supply voltage lines VSL extending in the first direction are spaced apart from each other in the second direction, and the first connection electrode 261A, the second connection electrode 261B, the third connection electrode 261C, and the fourth connection electrode 261D may be spaced apart from each other while overlapping one of the two common power supply voltage lines VSL. The first connection electrode 261A and the third connection electrode 261C are spaced apart from each other in the first direction while overlapping the same common power supply voltage line VSL (for example, the common power supply voltage line VSL on the right side), and the second connection electrode 261B and the fourth connection electrode 261D may be spaced apart from each other in the first direction while overlapping the same common power supply voltage line VSL (the common power supply voltage line VSL on the left side).

[0146] The second opening 232 may be disposed to overlap each of the first connection electrode 261A, the second connection electrode 261B, the third connection electrode 261C, and the fourth connection electrode 261D. The first pixel region PA1, the second pixel region PA2, and the third pixel region PA3 may be provided in each virtual unit VU connected to the second opening 232. Fig.12 In the embodiment, a virtual unit VU is defined for convenience of description, and the virtual unit VU may have a square shape, and the second openings 232 may be located at four corners.

[0147] The first pixel area PA1 corresponds to a pixel emitting red light, the second pixel area PA2 corresponds to a pixel emitting blue light, and the third pixel area PA3 corresponds to a pixel emitting green light.

[0148] In the above reference Figure 5 After the blue light emitted from the first organic light emitting diode OLED1, the second organic light emitting diode OLED2, and the third organic light emitting diode OLED3 is converted into another color or transmitted through the color panel, the red light, blue light, and green light emitted from the first pixel area PA1, the second pixel area PA2, and the third pixel area PA3 are visible to the user. Fig.12 The first pixel region PA1, the second pixel region PA2, and the third pixel region PA3 shown in FIG. 4 may correspond to the color regions R, B, and G of the color panel, respectively. For example, Fig.12 The first pixel area PA1 may correspond to a first color area (eg, a red area R) of the color panel, and the first color area R is surrounded by the light blocking area BA and corresponds to the above reference area. Figure 5The overlapping portion between the first color filter 130a and the first color conversion portion 140a described above. The second pixel area PA2 may correspond to the second color area (e.g., blue area B) of the color panel, and the second color area B may correspond to the overlapping portion between the second color filter 130b and the transmissive portion 140b. The third pixel area PA3 may correspond to the third color area (e.g., green area G) of the color panel, and the third color area G may correspond to the overlapping portion between the third color filter 130c and the second color conversion portion 140c. Fig.12 The first pixel area PA1, the second pixel area PA2, and the third pixel area PA3 correspond to the first color area R, the second color area B, and the third color area G surrounded by the light blocking area BA, respectively. Therefore, hereinafter, the first pixel area PA1, the second pixel area PA2, and the third pixel area PA3 may indicate the first color area R, the second color area B, and the third color area G, respectively, or the first color area R, the second color area B, and the third color area G may indicate the first pixel area PA1, the second pixel area PA2, and the third pixel area PA3, respectively. In an exemplary embodiment, the second color area B is smaller in size than each of the first color area R and the third color area G, and the second color area B is disposed between the first color area R and the third color area G. The inventive concept is not limited thereto. In an exemplary embodiment, one of the first color area R, the second color area B, and the third color area G may be smaller in size than the other color areas.

[0149] The widths between adjacent color regions may be constant or the same. For example, the first width W1 between the first color region R and the second color region B may be substantially equal to the second width W2 between the second color region B and the third color region G. In other words, the width of a portion of the light-blocking region BA between the first color region R and the second color region B may be substantially equal to the width of another portion of the light-blocking region BA between the second color region B and the third color region G.

[0150] Similarly, the third width W3 between the first color region R of the virtual unit VU and the color region adjacent thereto may be substantially equal to the first width W1 between the first color region R and the second color region B within the virtual unit VU. The fourth width W4 between the third color region G of the virtual unit VU and the color region adjacent thereto may be substantially equal to the second width W2 between the second color region B and the third color region G within the virtual unit VU.

[0151] The length L12 of the second color region B in the first direction may be smaller than the length L11 of the first color region R in the first direction or the length L13 of the third color region G in the first direction. For example, the length L12 of the second color region B in the first direction may be smaller than each of the length L11 of the first color region R in the first direction and the length L13 of the third color region G in the first direction. The second color region B may be located in the middle among the first color region R, the second color region B, and the third color region G in the virtual unit VU. The inventive concept is not limited thereto. In an exemplary embodiment, a color region in one of the first organic light emitting diode OLED1, the second organic light emitting diode OLED2, and the third organic light emitting diode OLED3 has a first length in the first direction, and the first length is smaller than the length of the color region in another one of the first organic light emitting diode OLED1, the second organic light emitting diode OLED2, and the third organic light emitting diode OLED3. As in Figure 8 As shown in FIG, because the first storage capacitor Cst1, the second storage capacitor Cst2, and the third storage capacitor Cst3 are arranged in the first direction, one of the first color region R, the second color region G, and the third color region G (for example, the second color region B) may overlap with the first storage capacitor Cst1, the second storage capacitor Cst2, and the third storage capacitor Cst3. Here, the second color region B may have a relatively small length L12 in the first direction for electrical connection between the third pixel electrode 241c of the third organic light emitting diode OLED3 overlapping with the third color region G and the third storage capacitor Cst3 (see FIG. Figure 8 ). For example, an eighteenth contact hole CT18 for electrical connection between the third pixel electrode 241c and the third storage capacitor Cst3 may be provided between a third virtual line VL3 passing through one side edge of the second color region B and a fourth virtual line VL4 passing through one side edge of the third color region G. The third virtual line VL3 and the fourth virtual line VL4 may be different from each other. Figure 8 The first virtual line VL1 and the second virtual line VL2 are shown in FIG.

[0152] Each of the first color region R, the second color region B, and the third color region G may at least partially overlap with each of the first organic light emitting diode OLED1, the second organic light emitting diode OLED2, and the third organic light emitting diode OLED3, and a connection point between each of the first organic light emitting diode OLED1, the second organic light emitting diode OLED2, and the third organic light emitting diode OLED3 and an electronic element of its pixel circuit may be covered by the light blocking region BA. For example, the tenth contact hole CT10 for connecting the first storage capacitor Cst1 to the first pixel electrode 241a, the nineteenth contact hole CT19 for connecting the second storage capacitor Cst2 to the second pixel electrode 241b, and the eighteenth contact hole CT18 for connecting the third storage capacitor Cst3 to the third pixel electrode 241c may be covered by the light blocking region BA (e.g., a light blocking layer of the color panel).

[0153] Fig.13 is a plan view partially showing a display device according to an exemplary embodiment.

[0154] Reference Fig.13 , a plurality of common power supply voltage lines VSL may be spaced apart from each other in the display area DA of the display device, and the second openings 232 of the sixth insulating layer 230 may be spaced apart from each other and may expose the common power supply voltage lines VSL. The display area DA may have a structure in which virtual units VU are repeatedly positioned, each virtual unit VU connecting four adjacent second openings 232, as described above with reference to Fig.12 Descriptive.

[0155] As mentioned above Figure 8 , Fig.10 and Fig.11 As described above, the second opening 232 is provided for electrical connection between the opposite electrode and the common power supply voltage line VSL, but the electrical connection between the opposite electrode and the common power supply voltage line VSL via the second opening 232 may depend on the intermediate layer 243 in the second opening 232 (see Fig.10 ) is changed depending on whether there is a through hole in the second opening 232. For example, a through hole may be formed in some second openings 232, and may not be formed in other second openings 232.

[0156] In an exemplary embodiment, as in Fig.13As shown in , the electrical connection point between the relative electrode and the common power supply voltage line VSL (for example, the overlapping structure between the second opening 232 of the sixth insulating layer and the through hole 243h located in the middle layer) can be located at each of the four corners of the virtual square surrounding the M×N virtual units. Here, M and N are both natural numbers of 1 or greater, and M and N can have the same value as each other or different values ​​from each other. Among the plurality of second openings 232 included in the M×N virtual units VU, the second opening 232 in which the through hole 243h of the middle layer is not provided can correspond to a virtual connection structure.

[0157] Fig.14 and Fig.15 is a diagram of an electronic device including a display device 1 according to an exemplary embodiment.

[0158] Reference Fig.14 and Fig.15 , the display device 1 may be included in an electronic device such as a television or a monitor or an electronic device such as a notebook computer. Alternatively, the display device 1 may be used in various electronic devices (eg, a smart frame or a large billboard).

[0159] The display device 1 may be used not only in electronic devices including a rectangular screen having longer lateral sides. For example, the display device 1 may be used in electronic devices having a rectangular screen that is longer in the longitudinal direction.

[0160] According to one or more exemplary embodiments, the display device can prevent the degradation of display quality due to the voltage drop of the opposite electrode in the large-sized display device. In addition, because the display device includes color elements arranged to have a predetermined rule, the process of manufacturing the color conversion part included in the color panel can be effectively performed, and the display element and the pixel circuit electrically connected to the display element can be effectively arranged in a limited space. In addition, sufficient capacitance of the storage capacitor can be ensured.

[0161] It should be understood that the exemplary embodiments described herein should be considered in a descriptive sense only and not for limiting purposes. The description of features or aspects in each exemplary embodiment should typically be considered applicable to other similar features or aspects in other exemplary embodiments. Although one or more exemplary embodiments have been described with reference to the accompanying drawings, it will be understood by those of ordinary skill in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

Claims

1. A display device, wherein: The display device comprises: a light emitting panel, comprising a first light emitting diode, a second light emitting diode and a third light emitting diode; and A color panel is arranged on the light-emitting panel, The color panel includes a first color area, a second color area, a third color area and a light blocking area. The first color region, the second color region and the third color region transmit light of different colors. Wherein, the light emitting panel further comprises: two first power lines spaced apart from each other; a plurality of connection electrodes electrically connected to the two first power lines; and an insulating layer, located on the plurality of connection electrodes, the insulating layer comprising a plurality of openings, each of the plurality of openings exposing a corresponding one of the plurality of connection electrodes, wherein the first light emitting diode, the second light emitting diode and the third light emitting diode are spaced apart from each other between the two first power lines, and The second color region is smaller in size than each of the first color region and the third color region, and the second color region is disposed between the first color region and the third color region.

2. The display device according to claim 1, in, Each of the first light emitting diode, the second light emitting diode and the third light emitting diode comprises a stack structure including a pixel electrode, an emission layer and an opposing electrode, and The first light emitting diode, the second light emitting diode and the third light emitting diode share the relative electrode.

3. The display device according to claim 2, in, The emissive layer includes a hole within at least one of the plurality of openings, and The relative electrode contacts a corresponding connection electrode among the plurality of connection electrodes via the hole in the emission layer and at least one of the plurality of openings, and is electrically connected to one of the two first power lines.

4. The display device according to claim 3, wherein: The display device further includes: at least one auxiliary line intersecting the two first power lines, Wherein, the at least one auxiliary line is electrically connected to at least one first power line of the two first power lines.

5. The display device according to claim 1, in, The color panel comprises: A light-blocking layer, defining the light-blocking area; A color conversion transmission layer including a plurality of color conversion portions configured to convert incident light into light of different colors and a transmission portion configured to transmit the incident light; and The color layer includes a plurality of color filters, each of the plurality of color filters overlapping with a corresponding one of the transmission portion and the plurality of color conversion portions.

6. The display device according to claim 5, in, The plurality of color conversion portions include quantum dots.

7. The display device according to claim 5, in, The light emitting panel further comprises a first electronic component, a second electronic component and a third electronic component located between the two first power lines, and The light blocking layer covers a first connection point between the first light emitting diode and the first electronic component, a second connection point between the second light emitting diode and the second electronic component, and a third connection point between the third light emitting diode and the third electronic component.

8. The display device according to claim 7, in, Each of the first electronic component, the second electronic component, and the third electronic component includes a storage capacitor.

9. The display device according to claim 8, in, The first electronic component, the second electronic component and the third electronic component are arranged in one direction, and The second light emitting diode overlaps with the storage capacitor of the first electronic component, the storage capacitor of the second electronic component, and the storage capacitor of the third electronic component.

10. The display device according to claim 1, in, A first width between the first color region and the second color region is equal to a second width between the second color region and the third color region.

11. A display device, wherein: The display device comprises: two first power lines extending in a first direction and spaced apart from each other in a second direction different from the first direction; A plurality of connection electrodes overlapping the two first power lines; an insulating layer disposed on the plurality of connection electrodes and comprising a plurality of openings respectively exposing the plurality of connection electrodes; and The first light emitting diode, the second light emitting diode and the third light emitting diode are located between the two first power lines. The first light emitting diode, the second light emitting diode and the third light emitting diode are spaced apart from each other between the two first power lines.

12. The display device according to claim 11, wherein: The display device further includes: The auxiliary line extends in a direction intersecting the two first power lines, and the auxiliary line is electrically connected to at least one of the two first power lines.

13. The display device according to claim 11, in, Each of the first light emitting diode, the second light emitting diode and the third light emitting diode comprises a stack structure including a pixel electrode, an emission layer and an opposing electrode, and The first light emitting diode, the second light emitting diode and the third light emitting diode share the relative electrode.

14. The display device according to claim 13, in, The emissive layer includes a hole within at least one of the plurality of openings, and The relative electrode contacts a corresponding connection electrode among the plurality of connection electrodes via the hole in the emission layer and at least one of the plurality of openings, and is electrically connected to one of the two first power lines.

15. The display device according to claim 14, in, The first light emitting diode, the second light emitting diode and the third light emitting diode share the emission layer.

16. The display device according to claim 11, wherein: The display device further includes: a first electronic component, a second electronic component and a third electronic component located between the two first power lines, The first electronic component, the second electronic component and the third electronic component are arranged in the first direction.

17. The display device according to claim 16, in, The first light emitting diode is connected to the first electronic component, the second light emitting diode is connected to the second electronic component, and the third light emitting diode is connected to the third electronic component.

18. The display device according to claim 16, in, A pixel electrode in one of the first light emitting diode, the second light emitting diode, and the third light emitting diode overlaps a portion of the first electronic component, a portion of the second electronic component, and a portion of the third electronic component.

19. The display device according to claim 18, in, The pixel electrode in one of the first, second and third LEDs has a first length in the first direction, wherein the first length is smaller than a length of the pixel electrode in another one of the first, second and third LEDs.

20. The display device according to claim 11, wherein: The display device further includes: A first color region, a second color region, and a third color region overlap with the first light emitting diode, the second light emitting diode, and the third light emitting diode, respectively; and The color panel includes a light-blocking area surrounding the first color area, the second color area, and the third color area.

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