Light-emitting element package and display device using same

Abstract

The present disclosure is applicable to a technical field related to display devices, and relates to, for example, a light-emitting element package and a display device using a light-emitting diode (LED). The present disclosure may comprise: a first layer having a terminal portion; a second layer adjacent to the first layer and having a light-emitting portion including light-emitting elements forming a unit subpixel; a connection electrode positioned between the first layer and the second layer to selectively connect the light-emitting elements and the terminal portion and having a metal pattern shape; a color layer positioned adjacent to the second layer in at least a portion of an area where the light-emitting elements are positioned; and a third layer through which light emitted from the light-emitting portion is emitted.

Description

Light-emitting element package and display device using the same

[0001] The present invention is applicable to the technical field related to display devices, and relates to a light-emitting element package and a display device using an LED (Light Emitting Diode), for example.

[0002] In recent years, display devices with superior characteristics, such as thinness and flexibility, have been developed in the field of display technology. Currently, the major commercially available displays are represented by LCD (Liquid Crystal Display) and OLED (Organic Light Emitting Diode).

[0003] Meanwhile, a light-emitting diode (LED) is a semiconductor light-emitting device that is well known for converting electric current into light. Starting with the commercialization of a red LED using GaAsP compound semiconductors in 1962, it has been used as a light source for display images in electronic devices, including information and communication devices, along with green LEDs of the GaP:N series.

[0004] Recently, these light-emitting diodes (LEDs) have been gradually miniaturized and manufactured into micrometer-sized LEDs, which are used as pixels in display devices.

[0005] Compared to other display devices / panels, this type of LED technology boasts low power consumption, high brightness, and high reliability, and can be applied to flexible devices. Therefore, research institutes and companies have been actively researching this technology recently.

[0006] The LED display market is expanding with applications that leverage the high brightness and high reliability of LEDs. Signage displays are leading the market with these characteristics.

[0007] In such displays, LEDs can be manufactured in a package form that can be used as unit pixels.

[0008] For light-emitting device packages used in display devices measuring approximately 0.4 mm in size, the light source occupies a large area relative to the overall display area, making black processing essential within the package. The trend is to adopt a black sidefill structure, which fills the sides of the light source with a black layer, the simplest yet lowest reflectivity. However, this can result in light loss.

[0009] Additionally, unevenness or deterioration of image quality may occur due to deviations in the black layer located on the side of these light-emitting elements.

[0010] Therefore, a solution to these problems is required.

[0011] The present disclosure provides a light-emitting device package capable of improving the contrast ratio of the light-emitting device package and a display device using the same.

[0012] The present disclosure provides a light-emitting device package capable of improving light efficiency by controlling the reflectivity of the light-emitting device package, and a display device using the same.

[0013] The present disclosure provides a light-emitting device package capable of improving the efficiency and reflectivity of the light-emitting device package and a display device using the same.

[0014] Furthermore, those skilled in the art will understand from the full intent of the specification and drawings that, according to other embodiments of the present invention, there may be additional technical problems not mentioned herein.

[0015] As one embodiment of the present disclosure, a display device may include a first layer having a terminal portion; a second layer having a light-emitting portion adjacent to the first layer and including light-emitting elements forming a unit subpixel; a connection electrode positioned between the first layer and the second layer to selectively connect the light-emitting elements and the terminal portion and having a metal pattern shape; a color layer positioned adjacent to the second layer in at least a portion of an area where the light-emitting elements are positioned; and a third layer through which light emitted from the light-emitting portion is emitted.

[0016] As one embodiment of the present disclosure, a display device including a light-emitting element package defining individual pixels may include a first layer having a terminal portion; a second layer having a light-emitting portion positioned adjacent to the first layer and including light-emitting elements forming a unit subpixel; a connection electrode positioned between the first layer and the second layer to selectively connect the light-emitting elements and the terminal portion and having a metal pattern shape; a color layer positioned adjacent to the second layer in at least a portion of an area where the light-emitting elements are positioned; and a third layer through which light emitted from the light-emitting portion is emitted.

[0017] According to one embodiment of the present invention, the following effects are achieved.

[0018] According to the present disclosure, the contrast ratio of a light-emitting element package and a display device can be improved.

[0019] According to the present disclosure, the luminous efficiency of a light-emitting element package and a display device can be improved.

[0020] According to the present disclosure, the efficiency and reflectivity of a light-emitting device package and a light-emitting device package of a display device can be improved.

[0021] According to the present disclosure, a reflectance reduction structure capable of optimizing the relationship between efficiency and reflectance of a light-emitting device package can be provided.

[0022] Furthermore, according to another embodiment of the present invention, there are additional technical effects not mentioned herein. Those skilled in the art will understand the full scope of the specification and drawings.

[0023] Fig. 1 is a plan view showing a light emitting device package according to the first embodiment of the present disclosure. Fig. 2 is a cross-sectional view taken along line A-A' of Fig. 1.

[0024] FIGS. 3 to 8 are plan schematic diagrams showing examples of color layers of a light-emitting device package according to the first embodiment of the present disclosure.

[0025] Fig. 9 is a plan view showing a light-emitting element package according to the second embodiment of the present disclosure.

[0026] FIGS. 10 to 12 are plan schematic diagrams showing examples of color layers of a light-emitting device package according to a second embodiment of the present disclosure.

[0027] Fig. 13 is a schematic diagram showing a manufacturing process of a light emitting device package according to a second embodiment of the present disclosure.

[0028] Figure 14 is a schematic diagram showing the light emitting process of the light emitting device package of the present disclosure.

[0029] Figure 15 is a schematic diagram showing the manufacturing process of a light-emitting element package according to a comparative example.

[0030] Figures 16 to 18 are cross-sectional schematic diagrams for explaining the light-emitting characteristics of a light-emitting element package according to a comparative example.

[0031] Figures 19 and 20 show detailed configurations of a display device using a light-emitting element package according to the first embodiment of the present disclosure.

[0032] Figures 21 to 29 are graphs showing the effects of the display device according to the configuration of Figures 19 and 20.

[0033] Fig. 30 is a cross-sectional schematic diagram showing a display device using a light-emitting element package according to the first embodiment of the present disclosure.

[0034] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the drawing numbers, identical or similar components will be given the same reference numbers, and redundant descriptions thereof will be omitted. The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably only for the convenience of writing the specification, and do not in themselves have distinct meanings or roles. In addition, when describing the embodiments disclosed in this specification, if it is determined that a specific description of a related known technology may obscure the gist of the embodiments disclosed in this specification, a detailed description thereof will be omitted. In addition, it should be noted that the attached drawings are only intended to facilitate easy understanding of the embodiments disclosed in this specification, and should not be construed as limiting the technical ideas disclosed in this specification by the attached drawings.

[0035] Furthermore, for the convenience of explanation, each drawing is described, but it is also within the scope of the present invention for a person skilled in the art to implement another embodiment by combining at least two drawings.

[0036] Additionally, when an element such as a layer, region or substrate is referred to as existing "on" another element, it will be understood that this may be directly on the other element, or that there may be intermediate elements in between.

[0037] The semiconductor light-emitting device mentioned in the specification includes LEDs, micro LEDs, etc., and may be used interchangeably.

[0038]

[0039] Fig. 1 is a plan view showing a light emitting device package according to the first embodiment of the present disclosure. Fig. 2 is a cross-sectional view taken along line A-A' of Fig. 1.

[0040] Referring to FIGS. 1 and 2, a light-emitting device package (200) of a bottom emission type in which light is emitted in a downward direction is shown.

[0041] A light-emitting device package (200) according to the first embodiment may include a first layer (210; support layer) having terminal portions (211, 212, 213, 214). This first layer (210) may be positioned on the opposite side of the light-emitting surface. The terminal portions (211, 212, 213, 214) may be electrically connected to an electrode pad (120) of a display device (10; see FIG. 30).

[0042] A second layer (220; light-emitting layer) may be provided adjacent to the first layer (210) and including light-emitting elements (261, 262, 263; 260) forming unit subpixels. Referring to FIG. 2, for example, the second layer (220) may be positioned in a flat shape at a portion where the light-emitting elements (261, 262, 263) are positioned. The thickness of the second layer (220) may approximately match the thickness of the light-emitting elements (261, 262, 263).

[0043] Between the first layer (210) and the second layer (220), a connecting electrode (271, 272, 273, 274) having a metal pattern shape and selectively connecting the light-emitting elements (261, 262, 263; 260) and the terminal portion (211, 212, 213, 214) may be provided. These connecting electrodes (271, 272, 273, 274) may be made of a metal having excellent reflectivity.

[0044] As mentioned above, the second layer (220) can be positioned in a flat shape at the portion where the light-emitting elements (261, 262, 263) are positioned, and in this case, the connecting electrodes (271, 272, 273, 274) can have an overall flat shape.

[0045] A third layer (230; transmissive layer) through which light emitted from the light emitting portion (260) passes may be positioned on one side of the second layer (220) (the side opposite to the first layer). This third layer (230) may form a light emitting surface.

[0046] Meanwhile, as an exemplary embodiment, a fourth layer (240; scattering layer) that scatters light emitted from light-emitting elements (261, 262, 263; 260) may be positioned inside the third layer (230) or in a location close to the light-emitting portion (260). For example, filler particles (241) may be dispersed and positioned in this fourth layer (240).

[0047] For example, a light-emitting element package (200) according to the first embodiment includes a first layer (210) having terminal portions (211, 212, 213, 214), a second layer (220) having a light-emitting portion (260) adjacent to the first layer (210) and including light-emitting elements (261, 262, 263) forming unit subpixels, a connecting electrode (271, 272, 273, 274) positioned between the first layer (210) and the second layer (220) to selectively connect the light-emitting elements (261, 262, 263) and the terminal portions (211, 212, 213, 214) and having a metal pattern shape, a color layer (280) positioned adjacent to the second layer (220) in at least a part of an area where the light-emitting elements (261, 262, 263) are positioned, And it may include a third layer (230) from which light emitted from the light emitting portion (260) is emitted.

[0048] Meanwhile, a fourth layer (240) located between the second layer (220) and the third layer (230) and including a scattering function may be further included.

[0049] Here, filler particles (241; hereinafter, first filler particles) can be dispersed and positioned in the fourth layer (scattering layer; 240).

[0050] The refractive index of these first filler particles (241) may be 1.3 or more. For example, these first filler particles (241) may include a plurality of particles having a size in the nanometer (nm) or micrometer (㎛) units.

[0051] For example, the first filler particle (241) may include at least one of TiO2, ZnO2, ZrO2, MgF2, SnO2, ITO, SiNx, Silica, and PMMA.

[0052] The first filler particle (241) can be used for at least one of the purposes of improving the viewing angle and improving reflectivity to prevent color temperature deviation according to the light emission angle of the light emitting portion (260) in the second layer (220).

[0053] At least one of the first layer (210) to the fourth layer (240) may include a transparent insulating layer. For example, at least one of the first layer (210) to the fourth layer (240) may be formed of at least one material selected from the group consisting of acrylic, epoxy, silicone, Teflon, silicone acrylic, and silicone epoxy composites. For example, the fourth layer (240) may be provided with first filler particles (241) dispersed therein using such a material as a binder.

[0054] For example, the refractive index of the transparent insulating layer forming at least one of the first layer (210) to the fourth layer (240) may be 1.5 or less. In addition, the refractive index of any one of the first filler particles (241) may be 1.6 or more. For example, the first filler particles (241) may include at least one of TiO2, ZnO2, and ZrO2.

[0055] As described above, connecting electrodes (271, 272, 273, 274) that selectively connect light-emitting elements (261, 262, 263; 260) and terminals (211, 212, 213, 214) may be provided between the first layer (210) and the second layer (220). The terminals (211, 212, 213, 214) may be positioned on the upper surface of the first layer (210).

[0056] The first electrode (e.g., P-electrode; 267) and the second electrode (e.g., N-electrode; 268) of the light emitting element (261, 262, 263; 260) can be electrically connected to the first connecting electrode (272) and the second connecting electrode (274), respectively, by solder.

[0057] At least one of these connecting electrodes (271, 272, 273, 274) can be manufactured using a redistribution layer (RDL) process used in a semiconductor packaging process. Using this layer redistribution (RDL) process, the light-emitting elements (260) can be connected to the connecting electrodes (271, 272, 273, 274).

[0058] For example, the connecting electrodes (271, 272, 273, 274) can be connected by making direct contact with the terminal portions (211, 212, 213, 214). At this time, the first layer (210) in FIG. 2 can be formed much thinner than that illustrated. For example, the first layer (210) can be located on the outer side of the connecting electrodes (271, 272, 273, 274), i.e., on the edge side of the light-emitting element package (200).

[0059] Meanwhile, as another example, the connecting electrodes (271, 272, 273, 274) can be connected to each other by the terminal portions (211, 212, 213, 214) and the through-connection portion (270). That is, the through-connection portion (270) can connect the connecting electrodes (271, 272, 273, 274) and the terminal portions (211, 212, 213, 214) to each other.

[0060] When the connecting electrodes (271, 272, 273, 274) are connected by direct contact with the terminal portions (211, 212, 213, 214), the drawing reference numeral 270 may mean a contact area between the connecting electrodes (271, 272, 273, 274) and the terminal portions (211, 212, 213, 214).

[0061] The light-emitting unit (260) may include a first light-emitting element (261), a second light-emitting element (262), and a third light-emitting element (263). For example, the first light-emitting element (261) may be a green light-emitting element (G), the second light-emitting element (262) may be a blue light-emitting element (B), and the third light-emitting element (263) may be a red light-emitting element (R). In some cases, the arrangement of the light-emitting colors of these light-emitting elements may vary. In addition, at least one of the first light-emitting element (261), the second light-emitting element (262), and the third light-emitting element (263) may include two or more light-emitting elements.

[0062] Referring to FIG. 1, on a plane, the third light-emitting element (263) may be arranged in a different row from the first light-emitting element (261) and the second light-emitting element (262). For example, the first light-emitting element (261), the second light-emitting element (262), and the third light-emitting element (263) may be positioned at each corner of a rectangular package (200). For example, the first light-emitting element (261), the second light-emitting element (262), and the third light-emitting element (263) may be positioned at each of the three corners of the second layer (220).

[0063] When the light-emitting element package (200) is used in a display device, each of the first light-emitting element (261), the second light-emitting element (262), and the third light-emitting element (263) may correspond to an individual subpixel. The first light-emitting element (261), the second light-emitting element (262), and the third light-emitting element (263) may together constitute a unit pixel.

[0064] The light emitting element (261, 262, 263) may be a mini LED having a size in millimeters or a micro LED having a size in micrometers.

[0065] Although not shown, the light emitting element package (200) may further include a driving element that drives the light emitting elements (261, 262, 263; 260). The driving element may be a micro driver integrated circuit chip (Driver IC) that can selectively drive the light emitting elements (260). In this case, the driving element may be connected to at least one of the light emitting elements (261, 262, 263) and the connection electrodes (271, 272, 273, 274). A detailed description thereof will be omitted.

[0066] As light-emitting elements (261, 262, 263) such as micro LEDs become smaller in overall size, the side emission amount has a significant proportion compared to the front emission amount. In order to change the light path of the side emission amount of the light-emitting elements (261, 262, 263) toward the front, the angle of incidence of light can be controlled by changing the shape and side angle of the micro LED chip.

[0067] In addition, by applying a scattering layer (240) including the first filler particles (241) as described above, light emitted from the light-emitting elements (261, 262, 263; 260) is scattered in the scattering layer (240) including the first filler particles (241), thereby minimizing changes in color temperature according to changes in the viewing angle when viewing the display.

[0068] Meanwhile, as an exemplary embodiment, the first layer (210) may include filler particles (211). For example, filler particles (211; hereinafter, second filler particles) may be dispersed and positioned in the first layer (support layer; 210).

[0069] The refractive index of these second filler particles (211) may be 1.3 or greater. For example, these second filler particles (211) may include a plurality of particles having sizes in the nanometer (nm) or micrometer (㎛) units. For example, the refractive index of the second filler particles (211) may be greater than the refractive index of the first filler particles (241).

[0070] Alternatively, the concentration of the second filler particles (211) may be greater than the concentration of the first filler particles (241). In this case, the refractive index of the second filler particles (211) may be the same as the refractive index of the first filler particles (241).

[0071] For example, the second filler particle (211) may include at least one of TiO2, ZnO2, ZrO2, MgF2, SnO2, ITO, SiNx, Silica, and PMMA.

[0072] These second filler particles (211) can be used for at least one of the purposes of improving optical properties by improving the orientation angle through scattering, improving reflectivity, or reducing TIR (total internal reflection).

[0073] Referring to FIG. 2, the color layer (280) may be positioned adjacent to the second layer (220) in at least a portion of the area where the light-emitting elements (261, 262, 263) are positioned.

[0074] For example, such a color layer (280) may be partially positioned between the second layer (220) and the third layer (230).

[0075] For example, the color layer (280) may be positioned by being attached between the second layer (220) and the third layer (230) by means of an adhesive layer (290). For example, an adhesive layer (290) may be positioned between the color layer (280) and the second layer (220). Accordingly, the color layer (280) may be positioned between the third layer (230) and the adhesive layer (290). For example, the color layer (280) may be positioned in contact with the third layer (230).

[0076] Referring to FIG. 2, a color layer (280) may be provided located adjacent to the second layer (220) in at least a portion of the area where the light-emitting elements (261, 262, 263) are located.

[0077] For example, the color layer (280) may have a color corresponding to at least one of the colors of light emitted from the light-emitting elements (261, 262, 263). For example, the color layer (280) may have a color corresponding to the blue light-emitting element (262). That is, for example, the color layer (280) may have a blue color.

[0078] As an exemplary embodiment, the color layer (280) may be implemented using a color filter (CF). Such a color filter may be applied using a pigment-based or dye-based photoresist typically used for displays.

[0079] However, the present disclosure is not limited thereto and may be implemented in various ways, such as using color dyes, color films, etc.

[0080] In this way, the color layer (280) may be located in a portion of the area of ​​the light-emitting element package (200), for example, the area (area) of the third layer (230). For example, the color layer (280) may be located in an area where one or two light-emitting elements (261, 262, 263) are located. For example, the color layer (280) may have an area corresponding to 1 / 4 to 3 / 4 of the area of ​​the third layer (230).

[0081] As described above, the light emitting elements (261, 262, 263) may be mini LEDs having a size in millimeters or micro LEDs having a size in micrometers.

[0082] Due to the small size of the LED light source, the light emitting element package (200) can be used in high-definition signage displays with a pitch of 1 mm or less. For pitches greater than this, a mini LED light source with a large area capable of handling high current density may have an advantage.

[0083] In the case of light-emitting element packages used in display devices having a relatively small size of about 0.4 mm, the area occupied by the light source in the entire display area is large, so black processing inside the package is essential, and there is a tendency to adopt a black sidefill structure (see Figs. 16 to 18) that fills the sides of the light source with a black layer that is the simplest and yet can achieve low reflectance. In this case, a decrease in the efficiency of the light source is inevitable.

[0084] However, the present disclosure proposes a reflectance reduction structure that can optimize the relationship between the efficiency and reflectance of the light-emitting device package (200) by implementing a color layer (280) within the light-emitting device package (200) as described above. The effects of the present disclosure will be described in detail below.

[0085] As described above, the color layer (280) may be present between the light-emitting portion (260) forming the light source and the light emission direction.

[0086]

[0087] FIGS. 3 to 8 are plan schematic diagrams showing examples of color layers of a light-emitting device package according to the first embodiment of the present disclosure.

[0088] FIGS. 3 to 8 exemplarily illustrate the arrangement of light-emitting elements (261, 262, 263) and color layers (280 to 283). Hereinafter, with reference to FIGS. 3 to 8, the arrangement of light-emitting elements (261, 262, 263) and color layers (280 to 283) according to the light-emitting element package (200) according to the first embodiment of the present disclosure and its modifications (201 to 205) will be exemplarily described. For parts not described otherwise, the matters described above with reference to FIGS. 1 and 2 can be equally applied.

[0089] Referring to FIG. 3, as described above, the color layer (280) may have a color corresponding to the blue light-emitting element (262). That is, for example, the color layer (280) may have a blue color.

[0090] For example, the color layer (280) may be implemented as a blue color filter layer. For example, the blue color filter may be implemented as a blue dye layer or a blue film layer.

[0091] For example, the color layer (280) may have an area that is half (1 / 2) of the area of ​​the light-emitting device package (200), for example, the area of ​​the third layer (230). For example, the color layer (280) may have an area that is half of the area of ​​the light-emitting device package (200), including the area where the blue light-emitting device (262) is positioned. However, it should be understood that the color layer (280) may have an area that is slightly larger or smaller than half of the light-emitting device package (200), including the area where the blue light-emitting device (262) is positioned.

[0092] Referring to FIG. 4, the color layer (281) may have a color corresponding to the red light-emitting element (263). That is, for example, the color layer (281) may have a red color.

[0093] For example, the color layer (281) may be implemented as a red color filter layer. For example, such a red color filter may be implemented as a red dye layer or a red film layer.

[0094] For example, the color layer (281) may have an area that is half (1 / 2) of the area of ​​the light-emitting device package (201), for example, the area of ​​the third layer (230). For example, the color layer (281) may have an area that is half of the area of ​​the light-emitting device package (201), including the area where the red light-emitting device (263) is positioned. However, it should be understood that the color layer (281) may have an area that is slightly larger or smaller than half of the light-emitting device package (201), including the area where the red light-emitting device (263) is positioned.

[0095] Referring to FIG. 5, the color layer (282) may have a black color. That is, for example, the color layer (282) may be placed in an area not occupied by the light-emitting elements (261, 262, 263).

[0096] For example, the color layer (282) may be implemented as a black layer or a black matrix layer. For example, the black layer may be implemented as a black dye layer or a black film layer.

[0097] For example, the color layer (282) may have an area that is 1 / 4 of the area of ​​the light emitting device package (202), for example, the area of ​​the third layer (230). For example, the color layer (282) may have an area that is 1 / 4 of the light emitting device package (202) in an area where the light emitting devices (261, 262, 263) are not located. However, it should be understood that the color layer (282) may have an area that is somewhat larger or smaller than 1 / 4 of the light emitting device package (202).

[0098] Referring to FIG. 6, the color layer (283) may have a color corresponding to the mixed light of the blue light-emitting element (262) and the red light-emitting element (263). That is, for example, the color layer (283) may have a magenta color.

[0099] For example, the color layer (283) may be implemented as a magenta color filter layer. For example, such a magenta color filter may be implemented as a magenta dye layer or a magenta film layer.

[0100] For example, the color layer (283) may have an area of ​​3 / 4 of the area of ​​the light-emitting device package (203), for example, the area (area) of the third layer (230). For example, the color layer (283) may have an area of ​​3 / 4 of the light-emitting device package (201), including the area where the blue light-emitting device (262) and the red light-emitting device (263) are positioned. However, it should be understood that the color layer (283) may have an area slightly larger or smaller than 3 / 4 of the light-emitting device package (203), including the area where the blue light-emitting device (262) and the red light-emitting device (263) are positioned.

[0101] Referring to Fig. 7, on a plane, the second light-emitting element (262) may be arranged in a different row from the first light-emitting element (261) and the third light-emitting element (263). For example, the first light-emitting element (261), the second light-emitting element (262), and the third light-emitting element (263) may be arranged in a triangular arrangement. That is, the light-emitting unit (260) may be provided in an equilateral triangle arrangement in which the second light-emitting element (262) is positioned between the first light-emitting element (261) and the third light-emitting element (263).

[0102] For example, the first light-emitting element (261), the second light-emitting element (262), and the third light-emitting element (263) can be arranged in an equilateral triangle shape on the second layer (220).

[0103] In the light-emitting element package (204), the color layer (280) may have a color corresponding to the blue light-emitting element (262). That is, for example, the color layer (280) may have a blue color.

[0104] For example, the color layer (280) may be implemented as a blue color filter layer. For example, the blue color filter may be implemented as a blue dye layer or a blue film layer.

[0105] For example, the color layer (280) may have an area equal to half (1 / 2) of the area of ​​the light-emitting device package (204), for example, the area of ​​the third layer (230). For example, the color layer (280) may have an area equal to half of the light-emitting device package (204), including the area where the blue light-emitting device (262) is positioned. However, it should be understood that the color layer (280) may have an area slightly larger or smaller than half of the light-emitting device package (204), including the area where the blue light-emitting device (262) is positioned.

[0106] Referring to Fig. 8, on a plane, the third light-emitting element (263) may be arranged in a different row from the first light-emitting element (261) and the second light-emitting element (262). For example, the first light-emitting element (261), the second light-emitting element (262), and the third light-emitting element (263) may be arranged in a triangular arrangement. That is, the light-emitting unit (260) may be provided in an equilateral triangle arrangement in which the third light-emitting element (263) is positioned between the first light-emitting element (261) and the second light-emitting element (262).

[0107] For example, the first light-emitting element (261), the second light-emitting element (262), and the third light-emitting element (263) can be arranged in an equilateral triangle shape on the second layer (220).

[0108] In the light-emitting element package (205), the color layer (281) may have a color corresponding to the red light-emitting element (263). That is, for example, the color layer (281) may have a red color.

[0109] For example, the color layer (281) may be implemented as a red color filter layer. For example, the red color filter may be implemented as a red dye layer or a red film layer.

[0110] For example, the color layer (281) may have an area that is half (1 / 2) of the area of ​​the light-emitting device package (205), for example, the area of ​​the third layer (230). For example, the color layer (281) may have an area that is half of the area of ​​the light-emitting device package (205), including the area where the red light-emitting device (263) is positioned. However, it should be understood that the color layer (280) may have an area that is slightly larger or smaller than half of the light-emitting device package (205), including the area where the red light-emitting device (263) is positioned.

[0111]

[0112] Fig. 9 is a plan view showing a light-emitting element package according to the second embodiment of the present disclosure.

[0113] Referring to Fig. 9, a light-emitting element package (206) of a bottom emission type in which light is emitted in a downward direction is shown.

[0114] In the layer configuration of this light-emitting element package (206), the configuration of the light-emitting elements (264, 265, 266; 260), the connection electrodes (275, 276, 277, 278) and the color layer (284) may be the same as that of the first embodiment. Therefore, the configuration of the first embodiment illustrated in FIG. 2 will be described together.

[0115] A light-emitting device package (206) according to the second embodiment may include a first layer (210; support layer; see FIG. 2) having terminal portions (211, 212, 213, 214). This first layer (210) may be positioned on the opposite side of the light-emitting surface. The terminal portions (211, 212, 213, 214) may be electrically connected to an electrode pad (120) of a display device (10; see FIG. 30).

[0116] A second layer (220; light-emitting layer) may be provided adjacent to the first layer (210) and including light-emitting elements (264, 265, 266; 260) forming a unit subpixel. For example, the second layer (220) may be positioned in a flat shape at a portion where the light-emitting elements (264, 265, 266) are positioned. The thickness of the second layer (220) may approximately match the thickness of the light-emitting elements (264, 265, 266) (see FIG. 2).

[0117] Between the first layer (210) and the second layer (220), a connecting electrode (275, 276, 277, 278) having a metal pattern shape and selectively connecting the light-emitting elements (264, 265, 266; 260) and the terminal portions (211, 212, 213, 214) may be provided. These connecting electrodes (275, 276, 277, 278) may be made of a metal having excellent reflectivity.

[0118] As mentioned above, the second layer (220) may be positioned in a flat shape at the portion where the light-emitting elements (264, 265, 266) are positioned, and in this case, the connecting electrodes (275, 276, 277, 278) may have an overall flat shape.

[0119] A third layer (230; transmissive layer) through which light emitted from the light emitting portion (260) passes may be positioned on one side of the second layer (220) (the side opposite to the first layer). This third layer (230) may form a light emitting surface.

[0120] Meanwhile, as an exemplary embodiment, a fourth layer (240; scattering layer) that scatters light emitted from light-emitting elements (264, 265, 266; 260) may be positioned inside the third layer (230) or in a location close to the light-emitting portion (260). For example, filler particles (241) may be dispersed and positioned in this fourth layer (240).

[0121] For example, a light-emitting element package (200) according to the first embodiment includes a first layer (210) having terminal portions (211, 212, 213, 214), a second layer (220) having a light-emitting portion (260) adjacent to the first layer (210) and including light-emitting elements (264, 265, 266) forming unit subpixels, a connecting electrode (275, 276, 277, 278) positioned between the first layer (210) and the second layer (220) and selectively connecting the light-emitting elements (264, 265, 266) and the terminal portions (211, 212, 213, 214) and having a metal pattern shape, a color layer (284) positioned adjacent to the second layer (220) in at least a part of an area where the light-emitting elements (264, 265, 266) are positioned, And it may include a third layer (230) from which light emitted from the light emitting portion (260) is emitted.

[0122] As described above, connecting electrodes (275, 276, 277, 278) that selectively connect light-emitting elements (264, 265, 266; 260) and terminals (211, 212, 213, 214) may be provided between the first layer (210) and the second layer (220). Terminals (211, 212, 213, 214) may be positioned on the upper surface of the first layer (210).

[0123] The light-emitting unit (260) may include a first light-emitting element (264), a second light-emitting element (265), and a third light-emitting element (266). For example, the first light-emitting element (264) may be a green light-emitting element (G), the second light-emitting element (265) may be a blue light-emitting element (B), and the third light-emitting element (266) may be a red light-emitting element (R). In some cases, the arrangement of the light-emitting colors of these light-emitting elements may vary. In addition, at least one of the first light-emitting element (264), the second light-emitting element (265), and the third light-emitting element (266) may include two or more light-emitting elements.

[0124] Referring to FIG. 9, on a plane, the first light-emitting element (264), the second light-emitting element (265), and the third light-emitting element (266) can be arranged in a row. In addition, in FIG. 9, the first light-emitting element (264), the second light-emitting element (265), and the third light-emitting element (266) are arranged in a state of being biased to one side on the plane, but the first light-emitting element (264), the second light-emitting element (265), and the third light-emitting element (266) can also be arranged on the central side on the plane (see FIGS. 10 to 12).

[0125] When the light-emitting element package (206) is used in a display device, each of the first light-emitting element (264), the second light-emitting element (265), and the third light-emitting element (266) may correspond to an individual subpixel. The first light-emitting element (265), the second light-emitting element (266), and the third light-emitting element (267) may together constitute a unit pixel.

[0126] Referring to FIG. 9, the color layer (284) may be positioned adjacent to the second layer (220) in at least a portion of the area where the light emitting elements (264, 265, 266) are positioned.

[0127] For example, the color layer (284) may have a color corresponding to at least one of the colors of light emitted from the light-emitting elements (264, 265, 266). For example, the color layer (284) may have a color corresponding to the blue light-emitting element (266). That is, for example, the color layer (284) may have a blue color.

[0128] As an exemplary embodiment, the color layer (284) may be implemented using a color filter (CF). Such a color filter may be a pigment-based or dye-based photoresist typically used for displays.

[0129] However, the present disclosure is not limited thereto and may be implemented in various ways, such as using color dyes, color films, etc.

[0130] In this way, the color layer (284) may be located in a portion of the area of ​​the light emitting element package (206), for example, the area (area) of the third layer (230). For example, the color layer (284) may be located in an area where one or two light emitting elements (264, 265, 266) are located. For example, the color layer (284) may have an area corresponding to 1 / 4 to 3 / 4 of the area of ​​the third layer (230).

[0131] Referring to FIG. 9, for example, the color layer (284) may be positioned on an area where the blue light-emitting element (266) is positioned. For example, the color layer (284) may have an area corresponding to 1 / 3 of the area of ​​the third layer (230).

[0132]

[0133] FIGS. 10 to 12 are plan schematic diagrams showing examples of color layers of a light-emitting device package according to a second embodiment of the present disclosure.

[0134] FIGS. 10 to 12 exemplarily illustrate the arrangement of light-emitting elements (264, 265, 266) and color layers (284 to 286). Hereinafter, with reference to FIGS. 10 to 12 , the arrangement of light-emitting elements (264, 265, 266) and color layers (284 to 286) according to a light-emitting element package (206) according to a second embodiment of the present disclosure and its modifications (207 to 208) will be exemplarily described. For parts not described otherwise, the matters of the first embodiment and the second embodiment described with reference to FIGS. 1 to 9 above can be equally applied.

[0135] Referring to FIG. 10, as described above, the color layer (284) may have a color corresponding to the blue light-emitting element (266). That is, for example, the color layer (284) may have a blue color.

[0136] For example, the color layer (284) may be implemented as a blue color filter layer. For example, the blue color filter may be implemented as a blue dye layer or a blue film layer.

[0137] For example, the color layer (284) may have an area that is 1 / 3 of the area of ​​the light-emitting device package (206), for example, the area (area) of the third layer (230). For example, the color layer (284) may have an area that is 1 / 3 of the light-emitting device package (206), including the area where the blue light-emitting device (266) is positioned. However, it should be understood that the color layer (284) may have an area that is slightly larger or smaller than 1 / 3 of the light-emitting device package (206), including the area where the blue light-emitting device (266) is positioned.

[0138] Referring to FIG. 11, the color layer (285) may have a color corresponding to the red light-emitting element (265). That is, for example, the color layer (285) may have a red color.

[0139] For example, the color layer (285) may be implemented as a red color filter layer. For example, such a red color filter may be implemented as a red dye layer or a red film layer.

[0140] For example, the color layer (285) may have an area that is 1 / 3 of the area of ​​the light-emitting device package (207), for example, the area (area) of the third layer (230). For example, the color layer (285) may have an area that is 1 / 3 of the light-emitting device package (207), including the area where the red light-emitting device (265) is positioned. However, it should be understood that the color layer (285) may have an area that is slightly larger or smaller than 1 / 3 of the light-emitting device package (207), including the area where the red light-emitting device (265) is positioned.

[0141] Referring to FIG. 12, the color layer (286) may have a color corresponding to the mixed light of the blue light-emitting element (266) and the red light-emitting element (265). That is, for example, the color layer (286) may have a magenta color.

[0142] For example, the color layer (286) may be implemented as a magenta color filter layer. For example, such a magenta color filter may be implemented as a magenta dye layer or a magenta film layer.

[0143] For example, the color layer (286) may have an area of ​​the light emitting device package (208), for example, 2 / 3 of the area (area) of the third layer (230). For example, the color layer (286) may have an area of ​​2 / 3 of the light emitting device package (208), including the area where the blue light emitting device (266) and the red light emitting device (265) are positioned. However, it should be understood that the color layer (286) may have an area slightly larger or smaller than 2 / 3 of the light emitting device package (208), including the area where the blue light emitting device (266) and the red light emitting device (265) are positioned.

[0144]

[0145] Fig. 13 is a schematic diagram showing a manufacturing process of a light emitting device package according to a second embodiment of the present disclosure.

[0146] Hereinafter, with reference to FIGS. 13(a) to 13(f), a step-by-step description will be given of the manufacturing process of a light-emitting device package according to the second embodiment of the present disclosure. For any portion not specifically described herein, the description of the light-emitting device package according to the second embodiment of the present disclosure described above with reference to FIG. 9 may be applied as is.

[0147] First, referring to Fig. 13(a), a substrate (230) is prepared. This substrate (230) can be manufactured using a transparent insulating layer. This substrate (230) corresponds to the third layer (230; transmissive layer) through which light emitted from the light-emitting portion (260) described above passes. This third layer (230) can form a light-emitting surface.

[0148] In Fig. 13, the third layer (230) is shown as an example having the size of an individual package unit, but as another example, the third layer (230) may be manufactured in multiple package units and separated into individual package units after the process of Fig. 13(f) is performed.

[0149] Referring to FIG. 13(b), a color layer (284) can be formed on the substrate (third layer; 230). As described above, the color layer (284) can have a color corresponding to the blue light-emitting element (266).

[0150] As an exemplary embodiment, the color layer (284) may be implemented using a color filter (CF). Such a color filter may be a pigment-based or dye-based photoresist typically used for displays.

[0151] In this way, the color layer (284) may be located in a portion of the area of ​​the third layer (230). For example, the color layer (284) may be located in a region where the blue light-emitting element (266) is located. For example, the color layer (284) may have an area corresponding to 1 / 4 to 3 / 4 of the area of ​​the third layer (230).

[0152] An adhesive layer (290) can be formed on the color layer (284). The adhesive layer (290) can have the same area as the third layer (230). The adhesive layer (290) can cover the entire color layer (284).

[0153] Referring to FIG. 13(c), a light-emitting portion (260) including light-emitting elements (264, 265, 266) can be transferred onto an adhesive layer (290). As an exemplary embodiment, among the light-emitting portions (260), a blue light-emitting element (266) can be positioned on a color layer (284).

[0154] Although not specifically described here, a light-emitting layer (second layer; 220) may be formed on the surface where the light-emitting portion (260) is installed.

[0155] Thereafter, referring to FIG. 13(d), a connecting electrode (275) electrically connected to each light-emitting element (264, 265, 266) can be formed. This connecting electrode (275) may have a shape identical to or similar to the connecting electrodes (275, 276, 277, 278) illustrated in FIG. 9. Meanwhile, the connecting electrode (275) may include a shape for forming terminal portions (211, 212, 213, 214). Any duplicate description thereof will be omitted.

[0156] Referring to Fig. 13(e), an insulating layer (210; first layer) covering the connecting electrode (275) can be formed.

[0157] Referring to Fig. 13(f), terminal portions (211, 212, 213, 214) can be formed on the connecting electrode (275). These terminal portions (211, 212, 213, 214) can be electrically connected to the connecting electrode (275). At this time, at least a portion of the insulating layer (210) can be exposed for electrical connection between the terminal portions (211, 212, 213, 214) and the connecting electrode (275).

[0158] Through this process, a light emitting device package (206) according to the second embodiment can be manufactured.

[0159] Figure 14 is a schematic diagram showing the light emitting process of the light emitting device package of the present disclosure.

[0160] Referring to FIG. 14, for example, when a light emitting element package (200, 206) is mounted on a display device (10; see FIG. 30), a separate color filter layer (130) may be positioned.

[0161] For example, in an embodiment where a blue color layer (280, 284) is positioned, light is generally emitted in all directions from the light-emitting elements (262, 266). At this time, the light emitted from the light-emitting elements (262, 266) may be emitted toward the color layer (280, 284), and the light emitted to the color filter layer (130) may be reflected and emitted through the color layer (280, 284). Meanwhile, some of the light emitted laterally from the light-emitting elements (262, 266) may also be reflected and emitted through the color layer (280, 284) from the color filter layer (130).

[0162] The reflectivity of the light-emitting device package can be secured through this light emission process. Furthermore, since light loss due to the black layer provided to increase contrast ratio in conventional light-emitting device packages does not occur, light efficiency can be increased. Meanwhile, since uniform reflectivity characteristics can be achieved, uniform image quality can be realized in the display device (10). This will be described in detail later.

[0163]

[0164] Figure 15 is a schematic diagram showing the manufacturing process of a light-emitting element package according to a comparative example.

[0165] Hereinafter, with reference to FIGS. 15(a) to 15(h), the manufacturing process of a light-emitting device package according to a comparative example is briefly described step by step.

[0166] First, referring to Fig. 15(a), a substrate (20) is prepared. This substrate (20) can be manufactured using a transparent insulating layer.

[0167] Referring to Fig. 15(b), an adhesive layer (21) can be formed on a substrate (20). The adhesive layer (21) can have the same area as the substrate (20).

[0168] Referring to Fig. 15(c), a light-emitting portion (30) including light-emitting elements (31, 32, 33) can be transferred onto an adhesive layer (21).

[0169] Thereafter, referring to Fig. 15(d), a black layer (22) covering the entire light-emitting portion (30) and adhesive layer (21) can be formed.

[0170] Next, referring to FIG. 15(e), a pattern (22a) can be formed on the black layer (22) to expose the light-emitting portion (30).

[0171] Thereafter, referring to FIG. 15(f), a connecting electrode (23) electrically connected to each light-emitting element (31, 32, 33) can be formed.

[0172] Referring to Fig. 15(g), an insulating layer (24) covering the connecting electrode (23) can be formed.

[0173] Referring to Fig. 15(h), a terminal portion (25) can be formed on the connecting electrode (23). This terminal portion (25) can be electrically connected to the connecting electrode (23).

[0174] According to the light-emitting device package according to this comparative example, the process of forming a black layer (22) and forming a pattern (22a) is added, as shown in FIG. 15(d) and FIG. 15(e). In other words, according to the embodiment of the present disclosure, the process of forming a black layer (22) and forming a pattern (22a) may be omitted.

[0175] Figures 16 to 18 are cross-sectional schematic diagrams for explaining the light-emitting characteristics of a light-emitting element package according to a comparative example.

[0176] Referring to FIGS. 16 and 17, as described above, a black layer (22) can be formed, and then a pattern (22a) can be formed again to expose a light-emitting element (31).

[0177] Light is generally emitted in all directions from the light-emitting element (31). At this time, light emitted downward from the light-emitting element (31) can be emitted through the adhesive layer (21) and the substrate (20).

[0178] However, light may not be emitted laterally from the light-emitting element (31) due to the black layer (22) formed to improve contrast ratio. In addition, light emitted upward from the light-emitting element (31) may be reflected by the color filter layer (40) but may not pass through the black layer (22) and be emitted toward the substrate (20). Light loss may occur during this process.

[0179] Meanwhile, referring to Fig. 18, deviations such as (a) to (c) may occur during the process of forming the black layer (22). For example, since it is difficult to avoid the uncertainty and variability of the plasma etching process used when forming the pattern (22a) that exposes the light-emitting element (31), deviations may occur in the degree of covering the side surface of the light-emitting element (31).

[0180] Therefore, unevenness or deterioration of image quality may occur due to deviation of the black layer (22) located on the side of the light-emitting element (31).

[0181]

[0182] Figures 19 and 20 show detailed configurations of a display device using a light-emitting element package according to the first embodiment of the present disclosure.

[0183] Referring to FIGS. 19 and 20, a display device (10) can be configured by mounting a light emitting element package (205) on a substrate (110) on which a wiring electrode (120) is formed.

[0184] The wiring electrode (120) may include a detailed electrode (121) connected to a pad (140) for electrical connection of the light emitting element package (205). This detailed electrode (121) may be connected to a wiring electrode (120; for example, a scan electrode). Typically, the substrate (110) may be configured as a multilayer structure, and may be provided with a through electrode (122) connected to another wiring electrode (for example, a data electrode).

[0185] These pads (140) can be repeatedly positioned at display pitch intervals. In addition, terminal portions (211, 212, 213, 214) of the light-emitting element package (205) can be electrically connected to the pads (140).

[0186] Figures 21 to 29 are graphs showing the effects of the display device according to the configuration of Figures 19 and 20.

[0187] In displays, contrast ratio is one of the most important factors in image quality. Displays, such as signage, are typically used in both indoor and outdoor environments. For both darkroom and indoor use, the self-luminous nature of displays results in high darkroom contrast ratios (CR).

[0188] However, for outdoor or commercial indoor use, the display is exposed to high ambient luminance, such as sunlight or high-brightness lighting. In these cases, low reflectivity of the display can lead to a decrease in contrast ratio (CR), resulting in a significant deterioration in image quality.

[0189] Figure 21 shows the contrast ratio for panel reflectance in indoor and outdoor environments. Typically, securing a CR of 100 may require a panel reflectance of 1-4%.

[0190] Light-emitting element packages that can be used as unit pixels using micro LEDs, such as those described herein, are being manufactured targeting the high-definition market with a pitch of 1 mm or less. Referring to Figure 22, in this case, the area of ​​the light-emitting element package can increase in proportion to the overall display.

[0191] Since the light-emitting device package, which is a light source, has a high reflectivity, in order to secure the contrast ratio (CR) of the light-emitting device package, the size of the package may need to become smaller as the resolution becomes higher, and the reflectivity of the PKG may need to be maintained at a certain level.

[0192] Figure 23 shows the transmittance of the color layer used in the light emitting device package according to embodiments of the present disclosure.

[0193] Referring to Figure 23, the transmittance of a blue color filter (Blue CF) used as a blue color layer (280, 284) and a red color filter (Red CF) used as a red color layer (281, 285) is shown.

[0194] As shown, it can be seen that the light in the 550 nm wavelength band corresponding to green is well shielded in both color filters.

[0195] Fig. 24 is a graph showing the reflectance for daylight with a color temperature of 6500K as reference light. Fig. 25 is a graph showing the reflectance of each example for reference light.

[0196] Fig. 25 shows the simulation results of the reflected light of each embodiment with respect to the reference light. Fig. 25 shows the reflectance of the embodiment of Fig. 5, in which a 1 / 4-sized black color layer (282) was used, the embodiment of Fig. 4, in which a 1 / 2-sized red color layer (281) was used, and the embodiments of Figs. 2 and 3, in which a 1 / 2-sized blue color layer (280) was used.

[0197] These simulation results show that the package's reflectance can be reduced by approximately 50%. This may be due to the significant effect on green light, which significantly affects reflectance.

[0198] Figures 26 to 28 show colors on the color coordinates according to the simulation shown in Figure 25.

[0199] Referring to Fig. 26, in the case of an embodiment in which a 1 / 4 size black color layer (282) is used, a color temperature and color coordinates of 6502 K are indicated by reflectance.

[0200] Referring to Fig. 27, in the case of an embodiment in which a 1 / 2 size red color layer (281) is used, a color temperature and color coordinates of 4348 K are shown by reflectance.

[0201] Referring to Fig. 28, in the case of an embodiment in which a 1 / 2 size blue color layer (280) is used, a color temperature and color coordinates of 7631K are shown by reflectance.

[0202] According to these simulations, it can be expected that, especially when a blue color layer (280) is used, the CCT will increase along the white line, resulting in a desirable display body color.

[0203] That is, when a blue color layer (280, 284) is used, it can show superiority in terms of body color when the display is not driven.

[0204] Figure 29 is a graph showing the change in light quantity before and after applying the color layer.

[0205] As explained above, the efficiency of the light source can be improved by applying a color layer.

[0206] By applying the blue color layers (280, 284) and the red color layers (281, 285), the reflectance of the package can be reduced to about 50%. On the other hand, due to the influence of the blue color layers (280, 284) and the red color layers (281, 285), the luminance can be reduced by 32% and 10%, respectively.

[0207] This is a result of a color filter for display whose transmittance is adjusted low to secure the gamut of the display device, and if a dedicated composition is developed for the color layer of the structure of the present disclosure that is not related to the gamut, the efficiency is expected to be further improved.

[0208] Although the transmittance of the blue color layer (280, 284) is low, the reduction in brightness may be greater, but since the power consumption of the blue light-emitting element is relatively low, the power consumption for implementing the same brightness for both blue and red may be approximately ~5%.

[0209] Considering that applying a conventional black or gray filter increases power consumption by about 11% (reduction in RGB brightness) and reduces reflectance by 19%, a display device with greatly improved efficiency can be implemented by using a structure that reduces reflected light by about 50% with a 5% increase in power consumption according to the present disclosure.

[0210]

[0211] Fig. 30 is a cross-sectional schematic diagram showing a display device using a light-emitting element package according to the first embodiment of the present disclosure.

[0212] Fig. 30 shows an example of a display device (10) in which a light-emitting element package (200) according to the first embodiment described above is used as a unit pixel.

[0213] Referring to FIG. 30, a display device (10) can be configured by arranging light emitting element packages (200) at regular intervals in a reversed state from FIG. 2 on a wiring substrate (100) including a substrate (110) on which a wiring electrode (120) is formed.

[0214] For example, the wiring electrodes (121, 122) and the terminal portions (211 to 214) of the light-emitting element package (200) can be electrically connected by the first wiring (123) and the second wiring (124).

[0215]

[0216] The above description is merely an example of the technical idea of ​​the present invention, and those skilled in the art will appreciate that various modifications and variations can be made without departing from the essential characteristics of the present invention.

[0217] Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of ​​the present invention but to explain it, and the scope of the technical idea of ​​the present invention is not limited by these embodiments.

[0218] The scope of protection of the present invention should be interpreted by the claims below, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

[0219] According to the present invention, a light-emitting device package using a light-emitting device and a display device using the same can be provided.

Claims

1. First floor equipped with terminals; A second layer positioned adjacent to the first layer and having a light-emitting portion including light-emitting elements forming unit subpixels; A connecting electrode positioned between the first layer and the second layer, selectively connecting the light-emitting elements and the terminal portion, and having a metal pattern shape; A color layer located adjacent to the second layer and at least in a portion of the area where the light-emitting element is located; and A third layer including light emitted from the above light emitting portion Light emitting device package.

2. In the first paragraph, the color layer has a color corresponding to at least one of the colors of light emitted from the light-emitting element. Light emitting device package.

3. In the first paragraph, the color layer is located in a part of the area of ​​the third layer. Light emitting device package.

4. In the first paragraph, the color layer is located in an area where one or two light-emitting elements are located. Light emitting device package.

5. In the fourth paragraph, the color layer has a color of light emitted by a light-emitting element located in the corresponding area. Light emitting device package.

6. In the first paragraph, the color layer has an area corresponding to 1 / 4 to 3 / 4 of the area of ​​the third layer. Light emitting device package.

7. In the first paragraph, the color layer has a red, blue, magenta, or black color. Light emitting device package.

8. In the first paragraph, the color layer is partially located between the second layer and the third layer. Light emitting device package.

9. In the first paragraph, an adhesive layer is positioned between the color layer and the second layer. Light emitting device package.

10. In the 9th paragraph, the color layer is located between the third layer and the adhesive layer. Light emitting device package.

11. In the first paragraph, the light emitting part includes a first light emitting element, a second light emitting element, and a third light emitting element positioned at each of the three corners of the second layer, and the color layer is positioned in a half area of ​​the second layer. Light emitting device package.

12. In the first paragraph, the light emitting part includes a first light emitting element, a second light emitting element, and a third light emitting element positioned parallel to each other in the second layer, and the color layer is positioned in a 1 / 3 area of ​​the second layer. Light emitting device package.

13. In the first paragraph, the light emitting part includes a first light emitting element, a second light emitting element, and a third light emitting element positioned in a triangular arrangement in the second layer, and the color layer is positioned in a half area of ​​the second layer. Light emitting device package.

14. In the first paragraph, further comprising a fourth layer located between the second layer and the third layer and including a scattering function. Light emitting device package.

15. A display device including a light-emitting element package defining individual pixels, The above light emitting device package, First floor equipped with terminal section; A second layer positioned adjacent to the first layer and having a light-emitting portion including light-emitting elements forming unit subpixels; A connecting electrode positioned between the first layer and the second layer, selectively connecting the light-emitting elements and the terminal portion, and having a metal pattern shape; A color layer located adjacent to the second layer and at least in a portion of the area where the light-emitting element is located; and A third layer including light emitted from the above light emitting portion Display device.

Images