Display device and method of manufacturing the same

Abstract

A display device and a manufacturing method thereof are disclosed. The display device includes a display panel and a cover plate, the display panel includes a base layer defining an active area and a peripheral area adjacent to the active area and a plurality of pixels, and the cover plate includes a window layer, a filter layer arranged on the rear surface of the window layer, and a color filter layer arranged on the filter layer and including quantum dots. The filter layer includes a partition layer defining an opening and including an organic material, a light shielding layer arranged on the partition layer, and a reflective layer arranged in the opening. The light shielding layer includes a metal.

Description

[0001] Cross-application of related applications

[0002] This application claims priority to and all benefits derived from Korean Patent Application No. 10-2018-0146644, filed on November 23, 2018, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0003] Herein, exemplary embodiments of the present invention relate to a display device and a method of manufacturing the same, and more particularly, to a display device having improved reliability and a method of manufacturing the same. Background Art

[0004] The display device may be activated by an electrical signal. The display device may include a display panel for displaying an image. The display device may include various types, such as a liquid crystal display ("LCD") device, an organic light emitting display device, a plasma display panel ("PDP") device, a quantum dot display device, a field emission display ("FED") device, and an electrophoretic display ("EPD") device.

[0005] The organic light emitting display panel in the display panel may have advantages such as low power consumption, high brightness and high response speed characteristics. The organic light emitting display panel may be formed using a method of forming a red organic light emitting layer for emitting red light, a green organic light emitting layer for emitting green light and a blue organic light emitting layer for emitting blue light in a red pixel region, a green pixel region and a blue pixel region, respectively. Alternatively, the organic light emitting display panel may be formed using a method of forming an organic light emitting layer for emitting white light in a red pixel region, a green pixel region and a blue pixel region, and forming a red color filter, a green color filter and a blue color filter in the red pixel region, the green pixel region and the blue pixel region, respectively. Summary of the invention

[0006] Exemplary embodiments of the present invention may provide a display device capable of preventing color mixing between adjacent light emitting regions and improving light efficiency and a method of manufacturing the same.

[0007] In an exemplary embodiment of the present invention, a display device includes a display panel and a cover plate, the display panel includes a base layer and a plurality of pixels, the base layer defines an active area and a peripheral area adjacent to the active area, and the plurality of pixels are arranged on the base layer to generate light and overlap with the active area; and the cover plate includes a window layer, a filter layer, and a color filter layer, the window layer defines a transmission area overlapping with the active area and a frame area adjacent to the transmission area, and the window layer includes a rear surface facing the display panel and a front surface opposite to the rear surface, the filter layer is arranged on the rear surface, and the color filter layer is arranged on the filter layer and includes quantum dots. The filter layer includes a partition layer, a light shielding layer, and a reflective layer, the partition layer defines an opening and includes an organic material, the light shielding layer is arranged on the partition layer, and the reflective layer is arranged in the opening. The light shielding layer includes metal.

[0008] In exemplary embodiments, the light shielding layer may expose a portion of a top surface of the partition layer on which the light shielding layer is disposed.

[0009] In an exemplary embodiment, the partition layer may have a matrix shape in a plan view, and the light shielding layer may have a shape corresponding to the matrix shape.

[0010] In an exemplary embodiment, the light shielding layer may further include a bottom facing the partition layer, a top opposite to the bottom, and a side connecting the bottom and the top. The side may be inclined relative to the bottom.

[0011] In an exemplary embodiment, the opening may be provided in plural, the reflective layer may include first to third reflective patterns having different colors, and each of the first to third reflective patterns may be arranged in a corresponding one of the openings.

[0012] In exemplary embodiments, one of the first to third reflective patterns may include an organic material of the partition layer.

[0013] In exemplary embodiments, the partition layer and one of the first to third reflective patterns including the organic material of the partition layer may define the same plane.

[0014] In exemplary embodiments, at least one of the first to third reflective patterns may cover a portion of each of the partition layer and the light shielding layer.

[0015] In exemplary embodiments, the color filter layer may include first to third color patterns respectively overlapping the first to third reflective patterns, and one of the first to third color patterns may transmit light provided from a corresponding one of the plurality of pixels.

[0016] In exemplary embodiments, the display device may further include a cover inorganic layer disposed on the color filter layer to separate the first to third color patterns. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification. The accompanying drawings illustrate exemplary embodiments of the present invention and together with the description serve to explain the principles of the present invention. In the drawings:

[0018] Figure 1 is a perspective view showing an exemplary embodiment of a display device according to the present invention;

[0019] Figure 2 is an exploded perspective view showing an exemplary embodiment of a display device according to the present invention;

[0020] Figure 3 is a cross-sectional view showing an exemplary embodiment of a display device according to the present invention;

[0021] Figure 4 is a cross-sectional view showing an exemplary embodiment of a display device according to the present invention;

[0022] Figure 5A is a cross-sectional view showing an exemplary embodiment of a cover plate according to the present invention;

[0023] Figure 5B is a cross-sectional view showing an exemplary embodiment of a cover plate according to the present invention;

[0024] Figure 6 is a plan view showing an exemplary embodiment of a cover plate according to the present invention;

[0025] Figure 7 is a cross-sectional view showing an exemplary embodiment of a cover plate according to the present invention;

[0026] Fig. 8A and Figure 8B is a plan view showing an exemplary embodiment of a cover plate according to the present invention;

[0027] Fig. 9A is a plan view showing an exemplary embodiment of a method for manufacturing a display device according to the present invention;

[0028] FIG. 9B to FIG. 9F is a cross-sectional view showing an exemplary embodiment of a method for manufacturing a display device according to the present invention;

[0029] Figure 9G is a plan view showing an exemplary embodiment of a method for manufacturing a display device according to the present invention; and

[0030] Figure 9H and Fig.9I is a cross-sectional view showing an exemplary embodiment of a method for manufacturing a display device according to the present invention. DETAILED DESCRIPTION

[0031] Now, the present invention will be described more fully hereinafter with reference to the accompanying drawings showing various embodiments. However, the present invention can be implemented in many different forms and should not be construed as being limited to the exemplary embodiments set forth herein. On the contrary, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art. Throughout the specification, the same reference numerals indicate the same elements.

[0032] It should be understood that when an element such as a layer, region, or substrate is referred to as being "on" another element, the element can be directly on the other element, or there can be intervening elements. In contrast, the term "directly" means that there are no intervening elements. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0033] The terms used herein are for the purpose of describing specific embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" as used herein are also intended to include the plural forms, and include "at least one". "Or" means "and / or". As used herein, the term "and / or" includes any and all combinations of one or more of the relevant listed items. It should also be understood that when the terms "comprise" and / or "comprising" or "include" and / or "including" are used in this specification, it indicates the presence of the stated features, regions, wholes, steps, operations, elements and / or parts, but does not exclude the presence or addition of one or more other features, regions, wholes, steps, operations, elements, parts and / or clusters thereof.

[0034] Spatially relative terms such as "beneath", "below", "lower", "above", "upper", etc. may be used herein for convenience of description to describe the relationship of one element or feature to another element or feature as shown in the accompanying drawings. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, the elements described as being "below" or "beneath" other elements or features will subsequently be oriented to be above the other elements or features. Therefore, the exemplary term "below" may include both the orientations of above and below. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0035] It should be understood that although the terms first, second, etc. can be used in this article to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, the first element, component, region, layer or part discussed below can be referred to as the second element, component, region, layer or part without departing from the teachings herein.

[0036] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views as idealized exemplary illustrations. In the accompanying drawings, the sizes of layers and regions are exaggerated for clarity. Accordingly, variations in the shapes of the illustrations resulting from, for example, manufacturing techniques and / or tolerances are expected. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but rather include deviations in shape resulting from, for example, manufacturing. For example, an etched region shown as a rectangle will typically have rounded or curved features. Therefore, the regions shown in the accompanying drawings are schematic in nature, and their shapes are not intended to illustrate the actual shapes of the regions of the device, and are not intended to limit the scope of the exemplary embodiments.

[0037] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0038] Figure 1 is a perspective view showing an exemplary embodiment of a display device according to the present invention. Figure 2 is an exploded perspective view showing an exemplary embodiment of a display device according to the present invention. Figure 3 is a cross-sectional view showing an exemplary embodiment of a display device according to the present invention. Figure 4is a cross-sectional view showing an exemplary embodiment of a display device according to the present invention. Figure 5A is a cross-sectional view showing an exemplary embodiment of a cover plate according to the present invention. Figure 5B is a cross-sectional view showing an exemplary embodiment of a cover plate according to the present invention. Figure 6 is a plan view showing an exemplary embodiment of a cover plate according to the present invention.

[0039] Reference Figure 1 and Figure 2 , the display device EA may display an image IM in a third direction D3 in a plan view defined by the first direction D1 and the second direction D2. The display device EA may include a cover plate CU, a display panel DP, and a cover case EDC.

[0040] The cover panel CU may include a window layer WM and an optical layer CF. The cover panel CU may be arranged on the display panel DP to cover the front surface IS of the display panel DP. The window layer WM may include a front surface FS exposed to the outside. The image IM displayed on the display panel DP may be visible to the outside through the front surface FS.

[0041] The window layer WM may have a single layer or a multi-layer structure. In an exemplary embodiment, for example, the window layer WM may have a stacked structure including a plurality of plastic films coupled to each other by an adhesive, or may have a stacked structure including a glass substrate and a plastic film coupled to each other by an adhesive. The window layer WM may be optically transparent. In an exemplary embodiment, for example, the window layer WM may include glass or plastic.

[0042] In a plan view, the front surface FS of the window layer WM may be divided into a transmission area TA and a frame area BZA. The transmission area TA may transmit light provided from the display panel DP. The transmission area TA may have a shape corresponding to the shape of the active area AA of the display panel DP. In an exemplary embodiment, for example, the transmission area TA may overlap the entirety or at least a portion of the active area AA. Therefore, the image IM displayed in the active area AA of the display panel DP may be visible to the outside through the transmission area TA.

[0043] The light transmittance of the bezel area BZA may be lower than that of the transmission area TA. The bezel area BZA may define the shape of the transmission area TA. The bezel area BZA may be adjacent to the transmission area TA and may have a closed loop shape surrounding the transmission area TA in a plan view.

[0044] The bezel area BZA may have a predetermined color. The bezel area BZA may cover the peripheral area NAA of the display panel DP to prevent the peripheral area NAA from being visible to the outside. In an exemplary embodiment, for example, when light generated in the display panel DP leaks to the peripheral area NAA, the leaked light may be blocked by the bezel area BZA, and thus the peripheral area NAA may not be visible to the outside.

[0045] The display panel DP may display an image IM on the front surface IS. The front surface IS may include an active area AA and a peripheral area NAA. The image IM may be displayed in the active area AA. The peripheral area NAA may be adjacent to the active area AA.

[0046] The display panel DP may include a plurality of pixels PX. Each of the pixels PX may display light in response to an electrical signal. Each of the pixels PX may generate light, and the light of the pixels PX may form an image IM in the active area AA. In some exemplary embodiments of the present invention, the pixels PX may include an organic light emitting element OLED (refer to FIG. Figure 3 ) of the pixel PX1 (refer to Figure 3 ) or a pixel PX2 including a liquid crystal display element LC (refer to Figure 3 ).

[0047] The cover case EDC may be coupled to the cover plate CU. The cover case EDC may provide a rear surface of the display device EA. The cover case EDC may be coupled to the cover plate CU to provide an internal space. Components of the display panel DP may be accommodated in the internal space. The cover case EDC may include a material having a predetermined rigidity. In an exemplary embodiment, for example, the cover case EDC may include a plurality of frames and / or plates including glass, plastic and / or metal. The cover case EDC may stably protect the components of the display device EA accommodated in the internal space from external impacts.

[0048] Reference Figure 3 , an exemplary embodiment of the display device EA may include a display panel DP and a cover panel CU. The display panel DP may include a base layer BS, insulating layers BL, 10, 20, 30 and 40, an encapsulation layer ECL and a pixel PX1.

[0049] The base layer BS may be provided as a base layer BS on which components of the display panel DP are arranged. The base layer BS may include an insulating material. In an exemplary embodiment, for example, the base layer BS may include glass, a resin film, or a stacked film in which organic layers and inorganic layers are alternately stacked.

[0050] The pixel PX1 may be provided in plurality, each of the pixels PX1 may generate light, and the light of the pixel PX1 may form an image IM in the active area AA. Each of the pixels PX1 may be connected to a plurality of signal lines (not shown). In an exemplary embodiment, for example, the signal line connected to each of the pixels PX1 may include a gate line and / or a data line.

[0051] The auxiliary layer BL of the insulating layer may include an inorganic material. The auxiliary layer BL may include a barrier layer and / or a buffer layer. Therefore, the auxiliary layer BL may prevent oxygen and / or moisture provided through the base layer BS from penetrating into the pixel PX1 and / or may provide a surface energy lower than that of the base layer BS to stably form the pixel PX1.

[0052] At least one of the base layer BS and the auxiliary layer BL may be provided in plural, and the base layer BS and the auxiliary layer BL may be alternately stacked. In some exemplary embodiments, at least one of the barrier layer and the buffer layer of the auxiliary layer BL may be provided in plural or may be omitted. However, the present invention is not limited thereto. In other exemplary embodiments, the structure of the display panel DP may be modified variously.

[0053] The pixel PX1 may include a first transistor TR-O and an organic light emitting element OLED. The first transistor TR-O may include a semiconductor pattern SP-O, a control electrode GE-O, an input electrode IE-O, and an output electrode OE-O.

[0054] The semiconductor pattern SP-O may be arranged on the auxiliary layer BL. The semiconductor pattern SP-O may include a semiconductor material. The control electrode GE-O may be spaced apart from the semiconductor pattern SP-O with the first insulating layer 10 interposed therebetween. The control electrode GE-O may include a conductive material. In an exemplary embodiment, for example, the control electrode GE-O may include at least one of a metal (e.g., nickel (Ni), molybdenum (Mo), aluminum (Al), titanium (Ti), copper (Cu), and / or tungsten (W)) and a conductive metal oxide.

[0055] The input electrode IE-O and the output electrode OE-O may be spaced apart from the control electrode GE-O with the second insulating layer 20 interposed therebetween. The input electrode IE-O and the output electrode OE-O may penetrate the first insulating layer 10 and the second insulating layer 20 to be connected to one side and the other side of the semiconductor pattern SP-O, respectively.

[0056] Each of the input electrode IE-O and the output electrode OE-O may include a conductive material. In an exemplary embodiment, for example, each of the input electrode IE-O and the output electrode OE-O may include at least one of nickel (Ni), chromium (Cr), molybdenum (Mo), aluminum (Al), titanium (Ti), copper (Cu), tungsten (W), and any alloy thereof. Each of the input electrode IE-O and the output electrode OE-O may have a single-layer or multi-layer structure.

[0057] The third insulating layer 30 may be arranged on the second insulating layer 20 to cover the input electrode IE-O and the output electrode OE-O. In another exemplary embodiment, the semiconductor pattern SP-O may be arranged on the control electrode GE-O. In yet another exemplary embodiment, the semiconductor pattern SP-O may be arranged on the input electrode IE-O and the output electrode OE-O. In yet another exemplary embodiment, the input electrode IE-O and the output electrode OE-O may be arranged in the same layer as the semiconductor pattern SP-O and may be directly connected to the semiconductor pattern SP-O. Exemplary embodiments of the first transistor TR-O according to the present invention may have any of various structures and are not limited to specific embodiments.

[0058] The organic light emitting element OLED may be disposed on the third insulating layer 30. The organic light emitting element OLED may include at least one of various elements capable of displaying and emitting light. The organic light emitting element OLED may include a first electrode E1, an emission pattern EP, a control layer EL, and a second electrode E2.

[0059] The first electrode E1 may penetrate the third insulating layer 30 to be connected to the first transistor TR-O. Even though not shown in the drawings, the display panel DP may further include a connection electrode disposed between the first electrode E1 and the first transistor TR-O. In this case, the first electrode E1 may be electrically connected to the first transistor TR-O through the connection electrode.

[0060] The fourth insulating layer 40 may be disposed on the third insulating layer 30. The fourth insulating layer 40 may include an organic material and / or an inorganic material, and may have a single layer or a multilayer structure. An opening may be defined in the fourth insulating layer 40. The opening may expose at least a portion of the first electrode E1. The fourth insulating layer 40 may be a pixel defining layer.

[0061] The emission pattern EP may be arranged in an opening defined in the fourth insulating layer 40. The emission pattern EP may be arranged on the first electrode E1 exposed through the opening. The emission pattern EP may include a light-emitting material. In an exemplary embodiment, for example, the emission pattern EP may include at least one of a material capable of emitting red light, green light, and blue light. In an exemplary embodiment, the emission pattern EP may include a fluorescent material or a phosphorescent material. The emission pattern EP may include an organic light-emitting material or an inorganic light-emitting material. The emission pattern EP may emit light in response to a potential difference between the first electrode E1 and the second electrode E2. An area overlapping with the emission pattern EP may be defined as a light-emitting area. A plurality of pixels PX1 may respectively have light-emitting areas. Figure 3 , three light emitting areas PXA1, PXA2, and PXA3 are shown as an example.

[0062] The control layer EL may be arranged between the first electrode E1 and the second electrode E2. The control layer EL may be arranged adjacent to the emission pattern EP. The control layer EL may control the movement of charges to improve the luminous efficiency and service life of the organic light emitting element OLED. The control layer EL may include at least one of a hole transport material, a hole injection material, an electron transport material, and an electron injection material.

[0063] In the exemplary embodiment shown, the control layer EL is arranged between the emission pattern EP and the second electrode E2. However, the present invention is not limited to this. In other exemplary embodiments, the control layer EL may be arranged between the emission pattern EP and the first electrode E1, or the control layer EL may include a plurality of layers stacked in the third direction D3 with the emission pattern EP interposed therebetween. In other exemplary embodiments, in the organic light emitting element OLED, the control layer EL may be omitted. The control layer EL may have a single overall shape extending from the active area AA to the peripheral area NAA. The control layer EL may be provided in common in a plurality of pixels PX1.

[0064] The second electrode E2 may be disposed on the control layer EL. The second electrode E2 may be opposite to the first electrode E1. The second electrode E2 may have a single overall shape extending from the active area AA into the peripheral area NAA. The second electrode E2 may be commonly disposed in a plurality of pixels PX1. The organic light emitting element OLED disposed in each of the pixels PX1 may receive a common power supply voltage through the second electrode E2.

[0065] The second electrode E2 may include a transparent conductive material or a semi-transparent conductive material. Therefore, the light generated from the emission pattern EP may be easily emitted in the third direction D3 through the second electrode E2. However, the present invention is not limited thereto. In another exemplary embodiment, the first electrode E1 may include a transparent conductive material or a semi-transparent conductive material, and the organic light emitting element OLED may be driven in a rear surface light emitting type. In yet another exemplary embodiment, the organic light emitting element OLED may be driven in a two-surface light emitting type such that light is emitted through the front surface and the rear surface.

[0066] The encapsulation layer ECL may be disposed on the organic light emitting element OLED to encapsulate the organic light emitting element OLED. The encapsulation layer ECL may be commonly provided in a plurality of pixels PX1. Even though not shown in the drawings, a cover layer covering the second electrode E2 may be disposed between the second electrode E2 and the encapsulation layer ECL.

[0067] The encapsulation layer ECL may include a first inorganic layer IOL1, an organic layer OL, and a second inorganic layer IOL2 sequentially stacked in the third direction D3. However, the present invention is not limited thereto. In another exemplary embodiment, the encapsulation layer ECL may further include a plurality of inorganic layers and / or organic layers.

[0068] The first inorganic layer IOL1 may cover the second electrode E2. The first inorganic layer IOL1 may prevent external moisture and / or oxygen from penetrating into the organic light emitting element OLED. In an exemplary embodiment, for example, the first inorganic layer IOL1 may include silicon nitride, silicon oxide, silicon oxynitride, or a combination thereof. For example, the first inorganic layer IOL1 may be provided by a deposition process.

[0069] The organic layer OL may be disposed on the first inorganic layer 10L1 and may be in contact with the first inorganic layer 10L1. The organic layer OL may provide a flat surface on the first inorganic layer 10L1. The organic layer OL may cover a curved portion of the top surface of the first inorganic layer 10L1 and / or particles present on the first inorganic layer 10L1, and thus may block the influence of the state of the top surface of the first inorganic layer 10L1 on components disposed on the organic layer OL.

[0070] In addition, the organic layer OL may relax or release stress between layers contacting the organic layer OL. The organic layer OL may include an organic material, and may be provided through a solution process such as a spin coating process, a slit coating process, and / or an inkjet process.

[0071] The second inorganic layer 10L2 may be arranged on the organic layer OL to cover the organic layer OL. The second inorganic layer 10L2 may be stably arranged on a relatively flat top surface of the organic layer OL compared to the top surface of the first inorganic layer 10L1. The second inorganic layer 10L2 may encapsulate moisture output from the organic layer OL to prevent moisture from being provided to the outside. In an exemplary embodiment, the second inorganic layer 10L2 may include, for example, silicon nitride, silicon oxide, silicon oxynitride, or a combination thereof. For example, the second inorganic layer 10L2 may be provided by a deposition process.

[0072] According to example embodiments, the cover substrate CU may be disposed on the encapsulation layer ECL. The cover substrate CU may include a planarization layer COL disposed on the second inorganic layer IOL2.

[0073] The planarization layer COL may cover the encapsulation layer ECL providing an uneven front surface and may provide a flat surface in the active area AA. However, the present invention is not limited thereto. In other exemplary embodiments of the cover substrate CU, the planarization layer COL may be provided in plural or may be omitted.

[0074] Reference Figure 4 An exemplary embodiment of the display device EA-1 may include a backlight unit BLU, a display panel DP-1, and a cover panel CU. The display panel DP-1 may include a base layer SUB, insulating layers 50 and 60, polarizing plates POL1 and POL2, alignment layers AL1 and AL2, and pixels PX2.

[0075] The backlight unit BLU may provide light to the display panel DP-1. The light LS output from the backlight unit BLU may have a specific wavelength band. In an exemplary embodiment, for example, the light LS may be ultraviolet ("UV") light or blue light. For example, even though not shown in the drawings, when the light LS is output from the side surface of the backlight unit BLU, the display device EA-1 may further include a light guide plate that guides the light LS to one surface of the base layer SUB.

[0076] The base layer SUB may be provided as a base layer SUB on which components of the display panel DP-1 are arranged. The base layer SUB may include an insulating material. In an exemplary embodiment, for example, the base layer SUB may include glass, a resin film, or a stacked film in which organic layers and inorganic layers are alternately stacked.

[0077] The pixel PX2 may be provided in plurality, each of the pixels PX2 may output light, and the light of the pixel PX2 may form an image IM in the active area AA. Each of the pixels PX2 may be connected to a plurality of signal lines (not shown). In an exemplary embodiment, for example, the signal line connected to each of the pixels PX2 may include a gate line and / or a data line.

[0078] The pixel PX2 may include a second transistor TR-L and a liquid crystal display element LC. The second transistor TR-L may include a control electrode GE-L, a semiconductor pattern SP-L, an input electrode IE-L, and an output electrode OE-L. The control electrode GE-L may be arranged on the base layer SUB. The control electrode GE-L may include a conductive material. In an exemplary embodiment, for example, the control electrode GE-L may include at least one of a metal (e.g., nickel (Ni), molybdenum (Mo), aluminum (Al), titanium (Ti), copper (Cu), and / or tungsten (W)) and a conductive metal oxide.

[0079] The first insulating layer 50 may be disposed on the base layer SUB, and may cover the control electrode GE-L.

[0080] The semiconductor pattern SP-L may be arranged on the first insulating layer 50. The semiconductor pattern SP-L may include a semiconductor material. A portion of the semiconductor pattern SP-L may overlap with the control electrode GE-L. The input electrode IE-L and the output electrode OE-L may be arranged on the first insulating layer 50. One side portion of the input electrode IE-L may be connected to a corresponding data line (not shown), and the other side portion of the input electrode IE-L may overlap with the semiconductor pattern SP-L. One side portion of the output electrode OE-L may overlap with the semiconductor pattern SP-L, and the other side portion of the output electrode OE-L may be connected to the first electrode PE. The other side portion of the input electrode IE-L may be spaced apart from one side portion of the output electrode OE-L.

[0081] Each of the input electrode IE-L and the output electrode OE-L may include a conductive material. In an exemplary embodiment, for example, each of the input electrode IE-L and the output electrode OE-L may include at least one of nickel (Ni), chromium (Cr), molybdenum (Mo), aluminum (Al), titanium (Ti), copper (Cu), tungsten (W), and any alloy thereof. Each of the input electrode IE-L and the output electrode OE-L may have a single-layer or multi-layer structure.

[0082] The second insulating layer 60 may be disposed on the first insulating layer 50. The second insulating layer 60 may cover the second transistor TR-L. The second insulating layer 60 may include an organic layer and / or an inorganic layer. The second insulating layer 60 may be a single layer or a multilayer. In an exemplary embodiment, for example, the second insulating layer 60 may include an inorganic layer disposed on the second transistor TR-L and an organic layer disposed on the inorganic layer and providing a flat top surface.

[0083] The first electrode PE (e.g., a pixel electrode) may be disposed on the second insulating layer 60. The first electrode PE may be electrically connected to the output electrode OE-L through a contact hole penetrating the second insulating layer 60. The first electrode PE may include a transparent conductive material. In an exemplary embodiment, for example, the first electrode PE may include at least one of indium oxide, gallium oxide, titanium oxide, and zinc oxide.

[0084] The area overlapped with the first electrode PE may be defined as a light emitting area. The plurality of pixels PX2 may each have a light emitting area. Figure 4 , three light emitting areas PXA1, PXA2, and PXA3 are shown as an example.

[0085] The liquid crystal layer CL may include liquid crystal molecules having directivity. The liquid crystal molecules may be differently arranged depending on an electric field provided by a voltage difference between the first electrode PE and the second electrode CE. The amount of light passing through the liquid crystal layer CL may be adjusted depending on the arrangement of the liquid crystal molecules.

[0086] The second electrode CE (e.g., a common electrode) may face the first electrode PE. The second electrode CE and the first electrode PE may constitute a liquid crystal capacitor. The second electrode CE may include a transparent conductive material. In an exemplary embodiment, for example, the second electrode CE may include at least one of indium tin oxide ("ITO"), indium zinc oxide ("IZO"), indium gallium zinc oxide ("IGZO"), fluorine zinc oxide ("FZO"), gallium zinc oxide ("GZO"), and tin oxide ("TO").

[0087] Even though not shown in the drawings, the second electrode CE in other exemplary embodiments may also be arranged on the base layer SUB. In these cases, the second electrode CE may be arranged in the same layer as the first electrode PE, or the second electrode CE and the first electrode PE may be arranged in different layers with at least one insulating layer interposed therebetween.

[0088] The display panel DP-1 may include a first alignment layer AL1 and a second alignment layer AL2. The first alignment layer AL1 may be disposed between the first electrode PE and the liquid crystal layer CL, and the second alignment layer AL2 may be disposed between the liquid crystal layer CL and the second electrode CE. The first alignment layer AL1 and the second alignment layer AL2 may align liquid crystal molecules of the liquid crystal layer CL. The first alignment layer AL1 and the second alignment layer AL2 may be vertical alignment layers, and may include polyamic acid, polysiloxane, and / or polyimide.

[0089] The display panel DP-1 may include at least one polarizing plate POL1 and / or POL2. In an exemplary embodiment, for example, the first polarizing plate POL1 and the second polarizing plate POL2 may polarize light provided from the backlight unit BLU. The first polarizing plate POL1 may face the backlight unit BLU. The second polarizing plate POL2 may be arranged on the second electrode CE. Each of the polarizing plates POL1 and POL2 may include a plurality of patterns for polarizing incident light, or may have a structure with an inorganic layer stacked. In an exemplary embodiment, for example, each of the polarizing plates POL1 and POL2 may include a wire grid polarizer, a distributed Bragg reflector, and / or a polarizing film.

[0090] According to example embodiments, the cover panel CU may be disposed on the second polarizing plate POL2. The cover panel CU may include a planarization layer COL disposed on the second polarizing plate POL2.

[0091] The planarization layer COL may cover the second polarizing plate POL2 and may provide a flat surface in the active area AA. However, the present invention is not limited thereto. In other exemplary embodiments of the cover substrate CU, the planarization layer COL may be provided in plural or may be omitted.

[0092] Figure 5A and Figure 5B The cover plate CU arranged on the display panel DP or DP-1 is shown respectively. Figure 5A and Figure 5B The planarization layer COL of the cover plate CU is omitted.

[0093] The cover panel CU may be arranged on the display panel DP or DP-1. The cover panel CU may include a window layer WM and an optical layer CF (refer to Figure 3 and Figure 4 ).

[0094] The optical layer CF may include a partition layer WA, a reflective layer CC, a light shielding layer ABM, and a color filter layer CP arranged in the transmissive area TA. In addition, the optical layer CF may include a partition layer WA, a reflective layer CC, a light shielding layer ABM, and a color filter layer CP arranged in the frame area BZA (refer to Figure 6 ) in the alignment key AK (refer to Figure 6 ).

[0095] In an exemplary embodiment of the present invention, the partition layer WA, the reflective layer CC, and the light blocking layer ABM may be defined as a filter layer.

[0096] The spacer layer WA of the filter layer may be arranged on the window layer WM. In an exemplary embodiment, for example, the spacer layer WA may be arranged on the rear surface of the window layer WM (i.e., the surface of the window layer WM facing the display panel DP or DP-1). The spacer layer WA may be arranged on the rear surface of the window layer WM to prevent components of the display panel DP or DP-1 from being visible by light provided from the outside to the front surface of the window layer WM. The spacer layer WA may include an organic material capable of blocking light. The spacer layer WA may have a predetermined color. In an exemplary embodiment, for example, the spacer layer WA may have a blue color.

[0097] The partition layer WA may have a plurality of openings OP defined therein. A portion of the rear surface of the window layer WM may be exposed through the openings OP of the partition layer WA. The openings OP may be respectively aligned with the light emitting areas PXA1, PXA2, and PXA3 (see FIG. 1 ) of the display panel DP or DP-1. Figure 3 and Figure 4 ) overlap. In an exemplary embodiment, for example, the opening OP may overlap Figure 3 In an alternative exemplary embodiment, the opening OP may overlap with the emission pattern EP of the organic light emitting element OLED. Figure 4 It overlaps with the first electrode PE (ie, pixel electrode) of the liquid crystal display element LC.

[0098] The reflective layer CC of the filter layer may be disposed on the rear surface of the window layer WM. The reflective layer CC and the spacer layer WA may prevent components of the display panel DP or DP-1 from being visible by light provided from the outside.

[0099] The reflective layer CC may include a first reflective pattern CC1, a second reflective pattern CC2, and a third reflective pattern CC3. Each of the first reflective pattern CC1, the second reflective pattern CC2, and the third reflective pattern CC3 may be arranged in a corresponding one of the openings OP. Each of the first reflective pattern CC1, the second reflective pattern CC2, and the third reflective pattern CC3 may overlap with a corresponding one of the light emitting areas PXA1, PXA2, and PXA3 of the display panel DP or DP-1.

[0100] The first reflective pattern CC1, the second reflective pattern CC2, and the third reflective pattern CC3 may block and / or transmit light of different colors. In an exemplary embodiment, for example, the first reflective pattern CC1 may transmit only blue light, and the second reflective pattern CC2 may block blue light but may transmit only red light. In an exemplary embodiment, for example, the third reflective pattern CC3 may block blue light but may transmit only green light.

[0101] The first reflective pattern CC1, the second reflective pattern CC2, and the third reflective pattern CC3 may include an organic material capable of transmitting light of different colors. The first reflective pattern CC1, the second reflective pattern CC2, and the third reflective pattern CC3 may have different colors. In an exemplary embodiment, for example, the first reflective pattern CC1 may have a blue color, the second reflective pattern CC2 may have a red color, and the third reflective pattern CC3 may have a green color.

[0102] In an exemplary embodiment, the first reflective pattern CC1 may be provided by the same process as the partition layer WA. Therefore, the first reflective pattern CC1 may include the same material as the partition layer WA and may have the same color as the partition layer WA. In addition, the top surface CC1-U of the first reflective pattern CC1 may be coplanar with the top surface WA-U of the partition layer WA.

[0103] In an exemplary embodiment, in the cross-sectional view, the partition layer WA may have different widths. In an exemplary embodiment, for example, the first reflective pattern CC1 may be a pattern substantially continuous with the partition layer WA, and thus the width of the partition layer WA arranged with the first reflective pattern CC1 in one direction may be greater than the width of the partition layer WA arranged between the second reflective pattern CC2 and the third reflective pattern CC3 in one direction.

[0104] In an exemplary embodiment, in a plan view, the shape of the first reflection pattern CC1 may be different from the shapes of the second reflection pattern CC2 and the third reflection pattern CC3. In an exemplary embodiment, for example, the top surface CC1-U of the first reflection pattern CC1 may be coplanar with the top surface WA-U of the partition layer WA. In contrast, each of the second reflection pattern CC2 and the third reflection pattern CC3 may cover a portion of the partition layer WA and the light shielding layer ABM. In addition, one side of the second reflection pattern CC2 may contact one side of the third reflection pattern CC3 adjacent thereto.

[0105] The light blocking layer ABM of the filter layer may be disposed on the partition layer WA. The partition layer WA may not overlap with the light emitting areas PXA1, PXA2, and PXA3 of the display panel DP or DP-1.

[0106] The light shielding layer ABM may include a bottom ABM-B facing the partition layer WA, a top ABM-U opposite to the bottom ABM-B, and a side ABM-S connecting the bottom ABM-B and the top ABM-U. In an exemplary embodiment, the side ABM-S may be inclined relative to the bottom ABM-B. Therefore, in a cross-sectional view, the light shielding layer ABM may have a tapered shape. However, the present invention is not limited thereto. In another exemplary embodiment, the side ABM-S may extend vertically from the bottom ABM-B to be connected to the top ABM-U.

[0107] The maximum width of the light shielding layer ABM in the second direction D2 may be smaller than the width of the partition layer WA in the second direction D2. Therefore, the light shielding layer ABM may expose a portion of the top surface of the partition layer WA where the light shielding layer ABM is disposed.

[0108] The light shielding layer ABM may be arranged between the light emitting areas PXA1, PXA2 and PXA3 to absorb light leaking to adjacent light emitting areas. The light shielding layer ABM may include a material that does not transmit light. In an exemplary embodiment, for example, the light shielding layer ABM may include a metal (e.g., chromium (Cr), copper (Cu), silver (Ag), molybdenum (Mo), nickel (Ni), titanium (Ti) and / or tantalum (Ta)), a metal oxide or an organic material. The light shielding layer ABM may be arranged between the light emitting areas PXA1, PXA2 and PXA3 of the display panel DP or DP-1 to prevent color mixing between the light emitting areas PXA1, PXA2 and PXA3.

[0109] The color filter layer CP may improve the color reproducibility of light provided from the display panel DP or DP-1. The color filter layer CP may include a first color pattern CP1, a second color pattern CP2, and a third color pattern CP3. The first color pattern CP1, the second color pattern CP2, and the third color pattern CP3 may overlap with the first reflective pattern CC1, the second reflective pattern CC2, and the third reflective pattern CC3, respectively. In an exemplary embodiment, the first color pattern CP1 may be arranged on the first reflective pattern CC1. For example, the second color pattern CP2 may be arranged on the second reflective pattern CC2, and the third color pattern CP3 may be arranged on the third reflective pattern CC3.

[0110] In an exemplary embodiment, the first color pattern CP1 may display the same color as the light supplied from the display panel DP or DP-1. In an exemplary embodiment, for example, blue light supplied from the display panel DP or DP-1 may pass through the first color pattern CP1 without conversion or change. The first color pattern CP1 corresponding to the area emitting blue light may include a material capable of outputting the incident blue light without a phosphor or a quantum dot. The first color pattern CP1 may also include a scatterer. In an exemplary embodiment, the first color pattern CP1 may include, for example, titanium oxide (TiO 2 ), polymer (eg, photosensitive resin), blue dye, and blue pigment. However, the present invention is not limited thereto. The first color pattern CP1 may include at least one of other various materials that do not convert blue light but scatter blue light.

[0111] Each of the second color pattern CP2 and the third color pattern CP3 may include a plurality of quantum dots for converting light. In this case, the quantum dots may include a II-VI compound, a III-V compound, an IV-VI compound, a IV element, a IV compound, or any combination thereof. The II-VI compound may be selected from a binary compound including CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe, MgSe, MgS, and any combination thereof, a binary compound including CdSeS, CdSeTe, CdSTe, ZnSeS, ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe, CdZnTe, CdHgS , CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe, MgZnSe, MgZnS and any combination thereof, and a cluster of quaternary compounds including HgZnTeS, CdZnSeS, CdZnSeTe, CdZnSTe, CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe, HgZnSTe and any combination thereof. Group III-V compounds may include binary compounds including GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, InSb and any combinations thereof, ternary compounds including GaNPs, GaNAs, GaNSb, GaPAs, GaPSb, AlNPs, AlNAs, AlNSb, AlPAs, AlPSb, InNPs, InNAs, InNSb, InPAs, InPSb, GaAlNPs and any combinations thereof, and quaternary compounds including GaAlNAs, GaAlNSb, GaAlPAs, GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb and any combinations thereof. The IV-VI group compounds may include binary compounds including SnS, SnSe, SnTe, PbS, PbSe, PbTe and any combination thereof, ternary compounds including SnSeS, SnSeTe, SnSTe, PbSeS, PbSeTe, PbSTe, SnPbS, SnPbSe, SnPbTe and any combination thereof, and quaternary compounds including SnPbSSe, SnPbSeTe, SnPbSTe and any combination thereof. The IV group elements may include silicon (Si), germanium (Ge) and any combination thereof.The IV group compound may be a binary compound including silicon carbide (SiC), silicon germanium (SiGe) and a combination thereof. In addition, the shape of the quantum dot may be a shape commonly used in the art, and is not particularly limited. In an exemplary embodiment, for example, the quantum dot may have a spherical shape, a pyramid shape, a multi-arm shape, a cubic nanoparticle shape, a nanotube shape, a nanowire shape, a nanofiber shape or a nanoplate particle shape. In certain exemplary embodiments, each of the second color pattern CP2 and the third color pattern CP3 may include a plurality of phosphors capable of converting incident light into light having a color different from the color of the incident light. In an exemplary embodiment, the second color pattern CP2 may include a plurality of phosphors that absorb blue light provided from the display panel DP or DP-1 and emit red light. In an exemplary embodiment, for example, the red phosphor may include (Ca, Sr, Ba) S, (Ca, Sr, Ba). 2 Si 5 N 8 、CaAlSiN 3 、CaMoO 4 and Eu 2 Si 5 N 8 The third color pattern CP3 may include a phosphor that absorbs blue light provided from the display panel DP or DP-1 and emits green light. In an exemplary embodiment, for example, the green phosphor may include yttrium aluminum garnet ("YAG"), (Ca, Sr, Ba) 2 SiO 4 , SrGa 2 S 4 , BAM, α-SiAlON, β-SiAlON, Ca 3 Sc 2 Si 3 O 12 , Tb 3 Al 5 O 12 、BaSiO 4 , CaAlSiON and (Sr 1-x Ba x )Si 2 O 2 N 2 at least one of .

[0112] In an exemplary embodiment, the cover substrate CU may further include a cover inorganic layer CIOL. The cover inorganic layer CIOL may be arranged on the entire rear surface of the window layer WM. The cover inorganic layer CIOL may be arranged on the color filter layer CP to separate the first color pattern CP1, the second color pattern CP2, and the third color pattern CP3. For example, the cover inorganic layer CIOL may include silicon oxide (SiO x) and silicon nitride (SiN x The capping inorganic layer CIOL may prevent oxygen and / or moisture from penetrating into the color filter layer CP.

[0113] Reference Figure 5B When the light shielding layer ABM includes metal or metal oxide, the light shielding layer ABM can reflect light from the adjacent light emitting regions PXA1, PXA2 and PXA3 (refer to Figure 3 and Figure 4 ) provides light.

[0114] In an exemplary embodiment, for example, when the first light L1 provided from the third color pattern CP3 is incident to the light blocking layer ABM, the light blocking layer ABM may reflect the first light L1 to form an optical path of the second light L2 propagating toward the third color pattern CP3 again.

[0115] Since the light shielding layer ABM includes a metal element, color mixing between adjacent light emitting areas PXA1, PXA2, and PXA3 can be prevented. In addition, the light shielding layer ABM can reflect light leaked to the adjacent light emitting areas PXA1, PXA2, and PXA3, and can provide the reflected light to the corresponding light emitting areas, and thus can provide or realize a display device EA or EA-1 with improved light emitting efficiency.

[0116] Reference Figure 6 , in a plan view, the partition layer WA may have a matrix shape or a grid shape. In addition, in a plan view, the light shielding layer ABM may have a matrix shape or a grid shape corresponding to the partition layer WA. In an exemplary embodiment, for example, the openings OP of the partition layer WA may be arranged in a matrix form.

[0117] exist Figure 6 In the embodiment, each of the openings OP arranged in a matrix form has a rectangular shape. However, the present invention is not limited thereto. In other exemplary embodiments, the shape and width of the opening OP may be modified differently, and / or the opening OP may have a different shape and / or a different width.

[0118] In an exemplary embodiment, as described above, the cover panel CU may include the align key AK. The align key AK may be arranged in the bezel area BZA. In a plan view, the align key AK may have a cross (+) shape.

[0119] The alignment key AK may be provided by the same process as the light shielding layer ABM. Therefore, the alignment key AK and the light shielding layer ABM may include the same material. In addition, the alignment key AK and the light shielding layer ABM may have the same thickness.

[0120] In the manufacturing process of the cover substrate CU, the alignment key AK may be used as a reference point for checking the area where the organic layer disposed on the light shielding layer ABM is discharged. In an exemplary embodiment, for example, each of the second reflection pattern CC2 and the third reflection pattern CC3 may be discharged to a corresponding one of the openings OP by the alignment key AK. In addition, the first color pattern CP1, the second color pattern CP2, and the third color pattern CP3 respectively overlapping the first reflection pattern CC1, the second reflection pattern CC2, and the third reflection pattern CC3 may also be provided using the alignment key AK.

[0121] Since the alignment key AK includes at least one of a metal and a metal oxide, it can be easily distinguished with naked eyes in the process. Therefore, the organic layer arranged on the window layer WM can be easily arranged at a desired position. Therefore, a display device EA or EA-1 with improved reliability can be provided or realized.

[0122] In addition, since the light shielding layer ABM and the alignment key AK are provided through the same process, the process cost and the process time can be reduced.

[0123] Figure 7 is a cross-sectional view showing an exemplary embodiment of a cover plate according to the present invention. Figures 1 to 6 The same or similar parts in the Figures 1 to 6 The same features are described in the exemplary embodiments of the present invention.

[0124] Reference Figure 7 ,and Figure 5A Unlike the first reflection pattern CC1 of the cover plate CU-A, in an exemplary embodiment, the first reflection pattern CC1-A of the cover plate CU-A may cover a portion of the partition layer WA and the light shielding layer ABM. In addition, one side of the first reflection pattern CC1-A may contact one side of the second reflection pattern CC2 adjacent thereto. Therefore, the top surfaces of the first reflection pattern CC1-A, the second reflection pattern CC2, and the third reflection pattern CC3 may define the same plane.

[0125] Fig. 8A and Figure 8B 1 is a plan view showing a cover plate in some exemplary embodiments of the present invention. Figures 1 to 6 The same or similar parts in the Figures 1 to 6 The same features are described in the exemplary embodiments of the present invention.

[0126] Reference Fig. 8A, the alignment key AK-1 of the cover plate CU-1 may be provided by the same process as the light shielding layer ABM. The alignment key AK-1 may be arranged in the frame area BZA. The alignment key AK-1 may include the same material as the light shielding layer ABM. In an exemplary embodiment, for example, the alignment key AK-1 may include at least one of a metal and a metal oxide.

[0127] In an exemplary embodiment, the alignment key AK-1 may have a quadrilateral shape in a plan view. However, the present invention is not limited thereto. In other exemplary embodiments, the alignment key AK-1 may have a polygonal shape or a circular shape in a plan view.

[0128] Reference Figure 8B , the alignment key AK-2 of the cover plate CU-2 may be provided by the same process as the light shielding layer ABM. The alignment key AK-2 may be arranged in the frame area BZA. The alignment key AK-2 may include the same material as the light shielding layer ABM. In an exemplary embodiment, for example, the alignment key AK-2 may include at least one of a metal and a metal oxide.

[0129] In an exemplary embodiment, the alignment key AK-2 may include a plurality of first sub-keys AK-A and second sub-keys AK-B. In a plan view, each of the first sub-keys AK-A may have a triangular shape. In a plan view, the first sub-keys AK-A may be arranged to surround the second sub-keys AK-B. In a plan view, the second sub-keys AK-B may have a quadrilateral shape. One side of each of the first sub-keys AK-A may face a corner of the second sub-key AK-B. In an exemplary embodiment, for example, the second sub-key AK-B having a quadrilateral shape may have four corners, and one side of each of the first sub-keys AK-A having a triangular shape may face each of the corners of the second sub-key AK-B. However, the shapes of the first sub-keys AK-A and the second sub-keys AK-B are not limited thereto. In other exemplary embodiments, the first sub-keys AK-A and the second sub-keys AK-B may have polygonal shapes.

[0130] Fig. 9A is a plan view showing an exemplary embodiment of a method of manufacturing a display device according to the present invention. FIG. 9B to FIG. 9F is a cross-sectional view showing an exemplary embodiment of a method for manufacturing a display device according to the present invention. Figures 1 to 6 The same or similar parts in the Figures 1 to 6 The same features are described in the exemplary embodiments of the present invention.

[0131] Reference Fig. 9A, an exemplary embodiment of a method for manufacturing a display device may include: providing a window layer WM. The window layer WM may be arranged on a working substrate WB. The window layer WM may include a transmission area TA and a frame area BZA.

[0132] Then, refer to Fig. 9B , the manufacturing method may include: forming a preliminary separation layer CC-A. The preliminary separation layer CC-A may be coated or deposited on the rear surface of the window layer WM of the transmission area TA. The preliminary separation layer CC-A may include an organic material capable of blocking light. The preliminary separation layer CC-A may have a predetermined color. In an exemplary embodiment, for example, the preliminary separation layer CC-A may have a blue color.

[0133] Afterwards, refer to Fig. 9C , the manufacturing method may include: forming a spacer layer WA. A photolithography process using a first mask MS1 may be performed on the preliminary spacer layer CC-A to form the spacer layer WA. An opening OP penetrating the spacer layer WA may be defined in the spacer layer WA. The opening OP may expose a portion of the rear surface of the window layer WM.

[0134] Next, refer to Fig.9D , the manufacturing method may include: forming a preliminary light shielding layer BMA. The preliminary light shielding layer BMA may be provided as a rear surface of the window layer WM covering the transmission area TA and the frame area BZA. The preliminary light shielding layer BMA may include a metal material. The preliminary light shielding layer BMA may be provided by a sputtering process.

[0135] Afterwards, refer to Fig.9E , the manufacturing method may include: forming a light shielding layer ABM. The light shielding layer ABM may be provided by patterning the preliminary light shielding layer BMA of the transmission area TA. The patterning process may be performed by an etching process using a second mask MS2. In an exemplary embodiment, the light shielding layer ABM may be arranged on the partition layer WA. The light shielding layer ABM may be spaced apart from the opening OP of the partition layer WA.

[0136] In an exemplary embodiment, a method of manufacturing a display device may include forming an alignment key AK. The alignment key AK may be provided by patterning a preliminary light shielding layer BMA disposed on the bezel area BZA. The patterning process may be performed by an etching process using a second mask MS2.

[0137] The light shielding layer ABM and the alignment key AK may be provided by the same process. In other words, the light shielding layer ABM and the alignment key AK may be provided simultaneously by an etching process using the second mask MS2. Therefore, the light shielding layer ABM and the alignment key AK may include the same material and may have the same thickness.

[0138] Then, refer to Fig.9F and Figure 9G, the manufacturing method may include: forming reflective patterns CC2 and CC3. The reflective patterns CC2 and CC3 may be provided to overlap corresponding openings OP in the openings OP defined in the partition layer WA. Each of the reflective patterns CC2 and CC3 may be provided by coating an organic material that blocks light and performing a photolithography process on the organic material. The reflective patterns CC2 and CC3 may be provided sequentially. The reflective patterns CC2 and CC3 may include organic materials having different colors. The first reflective pattern CC1 in an exemplary embodiment may be provided by patterning a preliminary partition layer CC-A. In other words, the first reflective pattern CC1 may be provided by the same process as the partition layer WA, and thus the first reflective pattern CC1 and the partition layer WA may constitute a single entity. In some drawings, for convenience in description, the first reflective pattern is indicated by a separate reference numeral "CC1".

[0139] In an exemplary embodiment of the present invention, each of the reflective patterns CC2 and CC3 including an organic material may be discharged to a corresponding opening OP and thus may be provided. A process of discharging each of the reflective patterns CC2 and CC3 may be performed on a desired opening OP through an alignment key AK. Since an exemplary embodiment of the alignment key AK includes at least one of a metal and a metal oxide, it may be easily distinguished with the naked eye in a process. Therefore, an organic layer disposed on the window layer WM may be easily disposed at a desired position.

[0140] In addition, the align key AK may be disposed on the bezel area BZA, and thus the align key AK may not be visible to the outside through the window layer WM.

[0141] Afterwards, refer to Figure 9H , the manufacturing method may include: forming a color filter layer CP. The color filter layer CP may include a first color pattern CP1, a second color pattern CP2, and a third color pattern CP3 for emitting light having different colors. The first color pattern CP1, the second color pattern CP2, and the third color pattern CP3 may be arranged on the first reflective pattern CC1, the second reflective pattern CC2, and the third reflective pattern CC3, respectively. The first color pattern CP1, the second color pattern CP2, and the third color pattern CP3 may include quantum dots for emitting different lights.

[0142] Next, refer to Fig.9I , the manufacturing method may include: forming a cover inorganic layer CIOL. The cover inorganic layer CIOL may be coated or deposited on the rear surface of the window layer WM. The cover inorganic layer CIOL may cover the color filter layer CP. The first color pattern CP1, the second color pattern CP2, and the third color pattern CP3 may be separated or divided by the cover inorganic layer CIOL. The cover inorganic layer CIOL may prevent moisture and / or oxygen from penetrating into the color filter layer CP.

[0143] According to an exemplary embodiment of the present invention, the light shielding layer ABM may include a metal element, thereby preventing color mixing between adjacent light-emitting areas. In addition, the light shielding layer ABM may reflect light leaked to adjacent light-emitting areas, and may provide the reflected light to the corresponding light-emitting area, and thus may provide or realize a display device with improved light-emitting efficiency.

[0144] Although the present invention has been described with reference to exemplary embodiments, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the present invention. Therefore, it should be understood that the above embodiments are not limiting but illustrative. Therefore, the scope of the present invention is determined by the broadest permissible interpretation of the appended claims and their equivalents, and should not be restricted or limited by the foregoing description.

Claims

1. A display device, comprising: Display panel, including: a base layer, wherein an active region and a peripheral region adjacent to the active region are defined; and a plurality of pixels arranged on the base layer to generate light and overlapping the active area; and Cover, including: a window layer, wherein a transmissive region overlapping the active region and a frame region adjacent to the transmissive region are defined in the window layer, and the window layer includes a rear surface facing the display panel and a front surface opposite to the rear surface; a filter layer disposed on the rear surface; and a color filter layer disposed on the optical filter layer and comprising quantum dots, Wherein, the filter layer comprises: a spacer layer having an opening defined therein and comprising an organic material; a light shielding layer disposed on a top surface of the separation layer and comprising a metal; and a reflective layer, the reflective layer being arranged in the opening, A portion of the top surface of the spacer layer is exposed from the light shielding layer, and the portion of the top surface of the spacer layer is in contact with the reflective layer.

2. The display device according to claim 1, wherein: In a plan view, the spacer layer has a matrix shape, and Wherein, the light shielding layer has a shape corresponding to the matrix shape.

3. The display device according to claim 1, wherein: The light shielding layer further comprises: a bottom portion, the bottom portion facing the partition layer; a top portion, the top portion being opposite to the bottom portion; and a side portion connecting the bottom portion and the top portion, and Wherein, the side portion is inclined relative to the bottom portion.

4. The display device according to claim 1, wherein: The opening is provided in a plurality, The reflective layer includes first to third reflective patterns having different colors, and Wherein, each of the first to third reflection patterns is arranged in a corresponding one of the openings.

5. The display device according to claim 4, wherein: One of the first to third reflective patterns includes the organic material of the partition layer.

6. The display device according to claim 5, wherein: The partition layer and the one of the first to third reflection patterns including the organic material of the partition layer define a same plane.

7. The display device according to claim 4, wherein: At least one of the first to third reflective patterns covers a portion of each of the partition layer and the light shielding layer.

8. The display device according to claim 4, wherein: The color filter layer includes first to third color patterns respectively overlapping the first to third reflective patterns, and Among them, one of the first to third color patterns transmits the light provided from a corresponding one of the plurality of pixels.

9. The display device according to claim 8, further comprising: A cover inorganic layer is disposed on the color filter layer to separate the first to third color patterns.

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