Display device

By designing a first printing layer with a cavity and a second printing layer with different colors in the window member of the display device, and forming a finely removed part by using laser patterning technology, the problem of diversity and insufficient design of the window member printing layer in the prior art is solved, and a high-quality and versatile display effect is achieved.

CN111509002BActive Publication Date: 2025-03-07SAMSUNG DISPLAY CO LTD
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Patent Information

Application Number
CN202010003228.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-01-04
Filing Date
2020-01-02
Publication Date
2025-03-07
Estimated Expiration
2040-01-02

AI Technical Summary

Technical Problem

The design diversity and quality of the window member printing layer of the existing display devices is difficult to meet the needs of versatility and high-quality display.

Method used

By designing a first printing layer with a cavity in the window member of the display device and forming a second printing layer with a color different from the first printing layer thereon, a finely removed portion is formed using laser patterning technology to improve the diversity and quality of the printing layer.

Benefits of technology

The design diversity and quality of the window component printing layer is improved, and the versatility and display effect of the display device are enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present disclosure relates to a display device, which includes: a display panel, including a display area including a plurality of pixels and a peripheral area outside the display area; and a window, including a transmission area corresponding to the display area, a non-transmission area corresponding to the peripheral area, a substrate, and a first printed layer directly on a first surface of the substrate, the first printed layer having a cavity, wherein the cavity is in the non-transmission area.
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Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2019-0001348 filed on January 4, 2019, in the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to a display device including a window component (eg, a window). Background Art

[0004] A display device such as a liquid crystal display (LCD) and an organic light emitting diode display (OLED display) includes a display panel including a plurality of pixels configured to display an image, and a window member (eg, a window).

[0005] The window member may include a region that is transparent and transmits light and a region that does not transmit light.

[0006] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore the above information may contain information that does not constitute the prior art. Summary of the invention

[0007] Embodiments of the present disclosure provide display devices with enhanced versatility and quality in the design of a printed layer of a window member (eg, a window).

[0008] A display device according to an exemplary embodiment of the present disclosure includes: a display panel, including a display area including a plurality of pixels and a peripheral area outside the display area; and a window, including a transmission area corresponding to the display area, a non-transmission area corresponding to the peripheral area, a substrate, and a first printed layer directly on a first surface of the substrate, the first printed layer having a cavity, and the cavity is in the non-transmission area.

[0009] The window may further include a second printed layer on the first printed layer, and a color of the second printed layer may be different from a color of the first printed layer.

[0010] The color of the first printed layer may be black, and the color of the second printed layer may be a color or a metallic color.

[0011] The second printed layer may overlap the cavity.

[0012] The second printed layer may include a portion contacting the first printed layer, and the second printed layer may fill a space in the cavity.

[0013] At least a portion of the space in the cavity may not be filled with the second printing layer.

[0014] The window may further include a film between the second printed layer and the first printed layer.

[0015] The window may further include an adhesive layer between the second printed layer and the first printed layer.

[0016] The first surface may face the display panel.

[0017] The cavity may be formed by laser patterning.

[0018] A display device according to an exemplary embodiment includes: a display panel including a display area including a plurality of pixels and a peripheral area outside the display area; and a window including a transmission area corresponding to the display area, a non-transmission area corresponding to the peripheral area, a substrate, a first printed layer in contact with a first surface of the substrate, and a second printed layer at a layer different from the first printed layer. The first printed layer has an opening at which the first printed layer is removed from the first surface, and the second printed layer overlaps the opening.

[0019] The second printed layer may have a color different from that of the first printed layer.

[0020] The color of the first printed layer may be black, and the color of the second printed layer may be a color or a metallic color.

[0021] The second printed layer may include a portion contacting the first printed layer, and the second printed layer may fill the opening.

[0022] At least a portion of the opening may not be filled with the second printing layer.

[0023] The window may further include a film between the second printed layer and the first printed layer.

[0024] The window may further include an adhesive layer between the second printed layer and the first printed layer.

[0025] The first surface may face the display panel.

[0026] The openings may be formed by laser patterning.

[0027] A method for manufacturing a display device according to an exemplary embodiment includes: forming a first printed layer on a first surface of a non-transmission area of ​​a substrate; patterning the first printed layer by using a laser to form a cavity; forming a second printed layer on the first printed layer having the cavity; and attaching the substrate having the first printed layer and the second printed layer formed thereon to a display panel including a plurality of pixels, wherein the second printed layer overlaps the cavity.

[0028] Forming the first printed layer on the first surface may include depositing, spraying, coating and / or printing.

[0029] Forming the second print layer on the first print layer may include depositing, spraying, coating and / or printing.

[0030] Forming the second printing layer on the first printing layer may include forming the second printing layer on a film and attaching the film to the first printing layer.

[0031] The method may further include washing the substrate between forming the removal portion in the first printing layer and forming the second printing layer.

[0032] The second printed layer may have a color different from that of the first printed layer.

[0033] According to exemplary embodiments of the present disclosure, the design diversity and quality of the printed layer of the window may be increased (or improved). BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is an exploded perspective view of a display device according to an exemplary embodiment of the present disclosure;

[0035] Figures 2 to 3 According to various embodiments, Figure 1 The line IIa-IIb intercepts Figure 1 A cross-sectional view of a window member (e.g., window) of a display device shown;

[0036] Figure 4 is a flow chart of a method for manufacturing a window member (eg, window) of a display device according to an exemplary embodiment of the present disclosure;

[0037] Figure 5 is a top plan view of a window member (eg, a window) in a step of a method of manufacturing a window member of a display device according to an exemplary embodiment of the present disclosure;

[0038] Figure 6 It is along Figure 5 The line Va-Vb intercepts Figure 5 A cross-sectional view of the window member shown;

[0039] Figure 7 is a top plan view of a window member in a step of a method of manufacturing a window member (eg, a window) of a display device according to an exemplary embodiment of the present disclosure;

[0040] Figure 8 It is along Figure 7 The line VIIa-VIIb is intercepted Figure 7 A cross-sectional view of the window member shown;

[0041] Fig. 9 is a top plan view of a window member (eg, a window) in a step of a method of manufacturing a window member of a display device according to an exemplary embodiment of the present disclosure;

[0042] Fig.10 It is along Fig. 9 The line IXa-IXb intercepts Fig. 9 A cross-sectional view of the window member shown;

[0043] Fig.11 is a cross-sectional view of a window member (eg, window) of a display device according to an exemplary embodiment of the present disclosure; and

[0044] Fig.12 2 is a schematic diagram of various examples of a pattern of a printed layer of a window member (eg, a window) of a display device according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0045] Hereinafter, the present disclosure is more fully described with reference to the accompanying drawings in which exemplary embodiments are shown. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Instead, these embodiments are provided as examples so that the present disclosure will be thorough and complete, and the aspects and features of the present disclosure will be fully conveyed to those skilled in the art. Therefore, processes, elements and techniques that are not necessary for a person of ordinary skill in the art to fully understand the aspects and features of the present disclosure may not be described. Unless otherwise stated, throughout the drawings and written descriptions, the same reference numerals represent the same elements, and therefore, their descriptions may not be repeated. In the drawings, for clarity, the relative sizes of elements, layers and regions may be exaggerated.

[0046] It will be understood that, although the terms "first", "second", "third", etc. may be used herein 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 used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the spirit and scope of the present disclosure, the first element, component, region, layer or part described below may be referred to as a second element, component, region, layer or part.

[0047] For ease of explanation, spatially relative terms such as "under", "below", "below", "below", "above", and "on" may be used herein to describe the relationship of one element or feature to another element (or elements) or feature (or features) as shown in the accompanying drawings. It will be understood that in addition to the orientations depicted in the accompanying drawings, the spatially relative terms are intended to cover different orientations of the device in use or operation. For example, if the device in the accompanying drawings is turned over, the elements described as "below" or "below" or "below" other elements or features will then be oriented "above" the other elements or features. Therefore, the example terms "below" and "below" can cover both above and below. The device can be oriented in other ways (e.g., rotated 90 degrees or at other orientations), and therefore, the spatially relative descriptors used herein should be interpreted accordingly.

[0048] It will be understood that when an element or layer is referred to as being "on," "connected to," or "coupled to" another element or layer, the element or layer can be directly on, directly connected to, or directly coupled to the other element or layer, or one or more intervening elements or layers may be present. Additionally, it will be understood that when an element or layer is referred to as being "between" two elements or layers, the element or layer can be the only element or layer between the two elements or layers, or one or more intervening elements or layers may also be present.

[0049] The terms used herein are for the purpose of describing specific embodiments and are not intended to limit the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular forms "one" and "a kind of" are also intended to include plural forms. It will also be understood that when used in this specification, the terms "include", "comprise", "contain", and "have" illustrate the presence of stated features, integral bodies, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integral bodies, steps, operations, elements, components, and / or their groups. As used herein, the term "and / or" includes any combination and all combinations of one or more related listed items.

[0050] As used herein, the terms "substantially," "approximately," and similar terms are used as approximate terms rather than terms of degree, and are intended to account for the inherent deviations in measurements or calculations that would be recognized by one of ordinary skill in the art. In addition, when describing embodiments of the present disclosure, the use of "may" refers to "one or more embodiments of the present disclosure." In addition, when describing embodiments of the present disclosure, the use of selective language such as "or" refers to "one or more embodiments of the present disclosure" for each corresponding item listed. As used herein, the term "using" may be considered synonymous with the term "utilizing." In addition, the term "exemplary" is intended to mean an example or illustration.

[0051] Throughout this specification and the claims that follow, a plan view indicates a view when observing a surface parallel to two directions (e.g., first direction DR1 and second direction DR2) that intersect each other, and a cross-sectional view indicates a view when observing a surface cut in a direction (e.g., third direction DR3) perpendicular (or orthogonal) to the surface parallel to the first direction DR1 and second direction DR2. In addition, unless otherwise specified, overlapping two constituent elements indicates that the two constituent elements overlap in the third direction DR3 (e.g., a direction perpendicular to the upper surface of the substrate).

[0052] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present disclosure belongs. It will also be understood that, unless explicitly defined as such in the text, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and / or this specification, and should not be interpreted in an idealized or overly formal sense.

[0053] The following references Figure 1 A display device 1000 according to an exemplary embodiment is described. Figure 1 is an exploded perspective view of a display device 1000 according to an exemplary embodiment of the present disclosure.

[0054] Figure 1A portable terminal as a display device 1000 according to an exemplary embodiment of the present disclosure is shown, but the present disclosure is not limited thereto. The portable terminal may be any suitable display device, such as a tablet personal computer, a smart phone, a personal digital assistant (PDA), a portable multimedia player (PMP), a game console, and a watch electronic device, etc. However, the display device 1000 according to the exemplary embodiment of the present disclosure is not limited thereto. For example, an embodiment of the present disclosure may include a small electronic device, such as a personal computer, a notebook computer, a car navigation unit or a camera, etc., as well as a television or an external billboard. The foregoing is provided as an exemplary embodiment, and the embodiment may be adopted in other suitable electronic devices without departing from the concept of the present disclosure.

[0055] like Figure 1 As shown, a display device 1000 according to an exemplary embodiment may include a display panel 100 , a window member (eg, window) 200 , and a case member (eg, case) 150 .

[0056] The display panel 100 may include: a display area DA, which is an area configured to display an image; and a peripheral area PA, which is disposed outside the display area DA. The display area DA may include a plurality of pixels PX, which are units configured to display an image. The peripheral area PA may be an area not configured to display an image.

[0057] The display panel 100 may be a display panel of any suitable display device such as a liquid crystal display and an organic light emitting diode display.

[0058] The display panel 100 may include a substrate 110 and an encapsulation layer 120. A plurality of signal lines, a plurality of transistors, a plurality of pixel electrodes, etc. may be disposed between the substrate 110 and the encapsulation layer 120. The pixel electrode may be electrically connected to at least one transistor.

[0059] For example, when the display panel 100 is a display panel of an emissive display device, a plurality of light emitting elements may be located between the substrate 110 and the encapsulation layer 120 .

[0060] A light emitting diode display may include a pixel electrode, a common electrode, and at least one emission layer (eg, a layer that emits) disposed between the pixel electrode and the common electrode.

[0061] The emission layer may be an organic emission layer (eg, an organic emission layer) including an organic light emitting material (eg, an organic light emitting material) or an inorganic emission layer (eg, an inorganic emission layer) including an inorganic light emitting material (eg, an inorganic light emitting material).

[0062] Each pixel PX may have one pixel electrode, but the present disclosure is not limited thereto.

[0063] The encapsulation layer 120 may be a substrate and / or may include a plurality of insulating layers. For example, the encapsulation layer 120 may include at least one inorganic insulating layer and at least one organic insulating layer. The encapsulation layer 120 may protect the light emitting diode display by sealing the light emitting diode display from the outside.

[0064] The encapsulation layer 120 may expose one side of the edge region of the substrate 110 without covering the one side of the edge region of the substrate 110 .

[0065] The display panel 100 may have a display surface for displaying an image and a rear surface opposite to the display surface. The display surface may be defined as an upper surface of the encapsulation layer 120, and the rear surface may be defined as a lower surface of the substrate 110.

[0066] The display surface on which the image is displayed may be substantially parallel to a plane defined by the first direction DR1 and the second direction DR2, and a normal direction of the display surface may be defined as a third direction DR3. However, the directions indicated thereby may be changed to other directions as a relative concept.

[0067] The window member 200 may overlap the display panel 100. Figure 1 In the embodiment, the window member 200 may be disposed on the display panel 100 .

[0068] The window member 200 may include a transmissive area TA that may be configured to transmit an image provided by the display panel 100 and a non-transmissive area BA that is disposed outside the transmissive area TA. The transmissive area TA may correspond to the display area DA of the display panel 100, and the non-transmissive area BA may correspond to the peripheral area PA of the display panel 100. The non-transmissive area BA may be disposed in an edge area (e.g., a peripheral area) of the window member 200, and the transmissive area TA may be surrounded by the non-transmissive area BA. In other words, the non-transmissive area BA may be around the window 200.

[0069] The case member 150 may be disposed under the display panel 100 to accommodate the display panel 100. The case member 150 may be coupled to the window member 200 with the display panel 100 therebetween.

[0070] The display device 1000 according to the exemplary embodiment may further include a flexible printed circuit substrate 500 .

[0071] One end (eg, first end) of the flexible printed circuit substrate 500 may be electrically connected to one side (eg, first side) of the substrate 110 exposed by the encapsulation layer 120. The flexible printed circuit substrate 500 may be bent toward the rear surface of the display panel 100.

[0072] The display device 1000 according to the exemplary embodiment may further include a printed circuit board (PCB) 600 electrically connected to the other end (eg, the second end) of the flexible printed circuit substrate 500 .

[0073] PCB 600 may output and receive signals to and from display panel 100 via flexible printed circuit substrate 500. When flexible printed circuit substrate 500 is bent, PCB 600 and / or a second end of flexible printed circuit substrate 500 may be attached to a lower portion of substrate 110 in a coupled state.

[0074] The display device 1000 according to an exemplary embodiment may further include a touch unit. The touch unit may be provided between the window member 200 and the display panel 100. However, the present disclosure is not limited thereto, and according to some exemplary embodiments, the touch unit may be provided inside the display panel 100. The touch panel may be operated by any suitable method such as a resistive film type, a capacitive type, and / or an electromagnetic induction type, so that the touch panel may detect touch and hovering from the outside, etc.

[0075] Below, reference Figures 1 to 3 A window member 200 according to an exemplary embodiment of the present disclosure is described.

[0076] Figures 2 to 3 Along the lines of various embodiments Figure 1 The line IIa-IIb intercepts Figure 1 FIG. 1 is a cross-sectional view of a window member 200 of a display device 1000 .

[0077] First, refer to Figure 2 , a window member 200 according to an exemplary embodiment may include a base member (eg, base) 210 and a first printed layer 10 .

[0078] The base member 210 may include an insulating material, such as glass, sapphire, and / or plastic.

[0079] In a cross-sectional view, the base member 210 may include a first surface (e.g., a lower surface) SF1 and a second surface (e.g., an upper surface) SF2. The lower surface SF1 may be substantially flat at a surface facing the display panel 100. A portion of the upper surface SF2 corresponding to the non-transmission area BA in the upper surface SF2 may be curved, and a portion of the upper surface SF2 corresponding to the transmission area TA may be substantially flat and extend substantially parallel to the lower surface SF1. For example, the upper surface SF2 corresponding to the lower surface SF1 and the transmission area TA may be parallel to a plane formed by the first direction DR1 and the second direction DR2.

[0080] The thickness of the base member 210 corresponding to the non-transmission area BA may become thinner (or may decrease) toward the edge of the base member 210. A portion of the base member 210 corresponding to the transmission area TA may have a substantially constant thickness.

[0081] However, the cross-sectional shape of the base member 210 is not limited thereto, and the upper surface SF2 may be completely flat (or substantially flat) like the lower surface SF1. In some embodiments, the thickness of the base member 210 in the third direction DR3 may be uniform as a whole (or in its entirety).

[0082] The first printed layer 10 may be formed corresponding to the non-transmission area BA of the window member 200. In addition, the first printed layer 10 corresponds to the peripheral area PA of the display device 1000 and may prevent the interior of the display device 1000 from being visible from the outside. The first printed layer 10 may be black or white, but is not limited thereto, and may have various colors such as color or metallic color. The first printed layer 10 may have a light blocking function.

[0083] The first printing layer 10 may include a resin material such as an acrylic-based resin, an epoxy resin, a polyurethane, a silicone resin, etc., which may be mixed with a pigment to realize a color.

[0084] The first printed layer 10 may be directly disposed on the lower surface SF1 of the base member 210 and may be in contact with the lower surface SF1. Therefore, in the present exemplary embodiment, the first printed layer 10 may have a substantially flat surface along the lower surface SF1 of the base member 210. In addition, according to some embodiments, there is no other layer such as an adhesive layer or a film between the first printed layer 10 and the base member 210.

[0085] The first printing layer 10 may be formed by directly printing on the lower surface SF1 of the base member 210. The first printing layer 10 may be formed on the lower surface SF1 of the base member 210 by any suitable method such as a spraying process, a deposition process, a coating process, and / or a printing process.

[0086] The first printing layer 10 may include a removed portion (eg, a cavity, a hole, an opening, etc.) 11 disposed in the non-transmission area BA. Figure 2 As shown, when the first printing layer 10 is removed from the lower surface SF1 of the base member 210, the removed portion 11 may form an opening. Alternatively, a portion of the first printing layer 10 adjacent to the lower surface SF1 may remain.

[0087] The removal portion 11 may form a pattern of the first printing layer 10. The first printing layer 10 including the removal portion 11 is referred to as a patterned first printing layer 10. The first printing layer 10 may be patterned by using a laser. Therefore, the first printing layer 10 may be patterned so that the width of the removal portion 11 may be fine, and the width W1 of the removal portion 11 may be minimized as desired. Therefore, the diversity and quality of the design of the first printing layer 10 may be increased (or improved).

[0088] The width W1 of the removed portion 11 may be up to about 0.05 mm. The width W1 refers to a width on a plane parallel to the first direction DR1 and the second direction DR2.

[0089] The second printed layer 20 may be disposed on the first printed layer 10. The second printed layer 20 may be disposed in a different layer from the first printed layer 10. For example, the first printed layer 10 may be disposed between the base member 210 and the second printed layer 20.

[0090] The color of the second printed layer 20 may be different from or the same as that of the first printed layer 10. For example, the second printed layer 20 may have various colors, such as a color or metallic color different from that of the first printed layer 10. The second printed layer 20 may also include a metal such as silver (Ag) to reflect light. The second printed layer 20 may be translucent and may transmit a portion of incident light.

[0091] The second printing layer 20 may include a resin material such as an acrylic-based resin, an epoxy resin, a polyurethane, a silicone resin, etc., which may be mixed with a pigment to realize a color.

[0092] The second printed layer 20 may overlap the removed portion 11 of the first printed layer 10 .

[0093] like Figure 2 As shown, the second printed layer 20 may fill the space in the removed portion 11 of the first printed layer 10, or may not fill at least a portion of the removed portion 11 of the first printed layer 10. In some embodiments, at least a portion of the removed portion 11 of the first printed layer 10 may be filled with air. For example, in the removed portion 11, the second printed layer 20 and the lower surface SF1 of the base member 210 may be spaced apart.

[0094] After patterning the first printing layer 10 , the second printing layer 20 may be formed by any suitable method such as a spraying process, a deposition process, a coating process, or a printing process.

[0095] According to another exemplary embodiment, the second printing layer 20 may be formed as a film on a plastic film such as PET, and then may be attached to the first printing layer 10. In some embodiments, a film such as PET may be further provided between the second printing layer 20 and the first printing layer 10, or the second printing layer 20 may be provided between a PET film or the like and the first printing layer 10.

[0096] At least one third printed layer may be disposed on the second printed layer 20. The characteristics of the third printed layer such as color and formation method may be similar to those of the second printed layer 20. For example, the color of the third printed layer may be different from the colors of the first and second printed layers 10 and 20.

[0097] refer to Figure 3 According to the present exemplary embodiment, the window member (eg, window) 200a and Figure 2 Most of the window members 200 shown are substantially the same, however, the shape of the lower surface SF1 of the base member 210 may be different. In the present exemplary embodiment, the lower surface SF1 of the base member 210 may be curved at the non-transmission area BA. Therefore, in the present exemplary embodiment, the first printed layer 10 and the second printed layer 20 may have a curved surface along the lower surface SF1 of the base member 210.

[0098] The bending direction (or curvature direction) of the lower surface SF1 of the base member 210 may be the same as the bending direction (or curvature direction) of the upper surface SF2 .

[0099] The curvature radius of the lower surface SF1 of the base member 210 may be different from the curvature radius of the upper surface SF2. For example, the curvature radius of the lower surface SF1 of the base member 210 may be greater than the curvature radius of the upper surface SF2. For example, the thickness of the portion of the base member 210 corresponding to the non-transmission area BA may become thinner (or smaller) toward the edge of the base member 210.

[0100] According to another exemplary embodiment, the radius of curvature of the lower surface SF1 of the base member 210 may be substantially equal to the radius of curvature of the upper surface SF2 .

[0101] Below, reference Figures 4 to 10 A method of manufacturing the display device 1000 according to an exemplary embodiment is described.

[0102] Figure 4 is a flowchart of a method of manufacturing a window member (eg, window) 200 / 200 a of a display device 1000 according to an exemplary embodiment of the present disclosure. Figure 5 2 is a top plan view of the window member 200 / 200 a in the steps of a method of manufacturing the window member 200 / 200 a of the display device 1000 according to an exemplary embodiment of the present disclosure. Figure 6 It is along Figure 5 The line Va-Vb intercepts Figure 5 A cross-sectional view of window member 200 / 200a is shown. Figure 7 2 is a top plan view of the window member 200 / 200 a in the steps of a method of manufacturing the window member 200 / 200 a of the display device 1000 according to an exemplary embodiment of the present disclosure. Figure 8 It is along Figure 7 The line VIIa-VIIb is intercepted Figure 7 A cross-sectional view of window member 200 / 200a is shown. Fig. 9 2 is a top plan view of the window member 200 / 200 a in the steps of a method of manufacturing the window member 200 / 200 a of the display device 1000 according to an exemplary embodiment of the present disclosure. Fig.10 It is along Fig. 9 The line IXa-IXb intercepts Fig. 9 A cross-sectional view of window member 200 / 200a is shown.

[0103] First, refer to Figures 4 to 6 , a first printed layer 10 having a color such as black, white, color or metallic color is formed on the lower surface SF1 of the base member 210 made of an insulating material such as glass, sapphire and / or plastic (S40). The first printed layer 10 may be formed on the lower surface SF1 of the base member 210 by any suitable method such as spraying, deposition, coating or printing. The first printed layer 10 is directly printed on the lower surface SF1 of the base member 210 and is referred to as primary printing.

[0104] refer to Figure 5 , a region where the first printing layer 10 is formed may correspond to the non-transmission area BA of the window member 200 , and a region where the first printing layer 10 is not formed may correspond to the transmission area TA.

[0105] Next, refer to Figure 4 , Figure 7 and Figure 8 , irradiating laser to at least a portion of the first printing layer 10 (or irradiating laser onto at least a portion of the first printing layer 10) to pattern the first printing layer 10 (S41). The portion of the first printing layer 10 irradiated with the laser may be removed to form a removal portion (or cavity) 11. When the first printing layer 10 is removed in the removal portion 11 (for example, when the entire portion of the first printing layer 10 is removed in the removal portion 11), an opening may be formed at a location where the lower surface SF1 of the base member 210 overlaps with the removal portion 11, and alternatively, a portion of the first printing layer 10 adjacent to the lower surface SF1 may remain.

[0106] The width W1 of the removed portion 11 of the first printed layer 10 formed by laser patterning may be reduced to about 0.05 mm.

[0107] The shape and arrangement of the removed portion 11 may vary. Figures 7 and 8 , the width W1 of the plurality of removed portions 11 included in the first printed layer 10 (e.g., the size of the removed portions 11) may vary according to the position. For example, in a plan view, the closer to the edge of the base member 210, the width W1 of the removed portion 11 may become larger, but the arrangement and shape of the removed portion 11 are not limited thereto.

[0108] Next, refer to Figure 4 , the base member 210 in which the laser-patterned first printing layer 10 is formed is cleaned to remove impurities such as carbon black particles ( S42 ).

[0109] Next, refer to Figure 4 , Fig. 9 and Fig.10 , on the patterned first printing layer 10, a second printing layer 20 having various colors such as a colorful color or a metallic color which may be different from the color of the first printing layer 10 is formed (S43). Fig. 9 and Fig.10 An example is shown in which the color of the second printed layer 20 is red.

[0110] The second printing layer 20 may be formed on the first printing layer 10 by spraying, depositing, coating or printing, etc. The second printing layer 20 is printed on the first printing layer 10 which is printed on the lower surface SF1 of the base member 210 and may be referred to as secondary printing.

[0111] Because the second printed layer 20 overlaps the removed portion 11 of the first printed layer 10 , the removed portion 11 of the first printed layer 10 may be identified with a color different from that of the first printed layer 10 when viewed from the upper surface SF2 side of the base member 210 .

[0112] Alternatively, the second print layer 20 may be formed directly on the first print layer 10 , and the second print layer 20 may be formed on a separate film such as PET by any suitable method such as spraying, deposition, coating and / or printing, and the film may then be attached to the first print layer 10 .

[0113] According to the present exemplary embodiment, the design of the non-transmission area BA of the window member 200 can be modified in various ways and its quality can be improved by adjusting the arrangement and / or shape of the plurality of removal portions 11 and the color of the second printed layer 20. For example, since the first printed layer 10 is patterned by using a laser to form the removal portion 11, the width of the removal portion 11 can be fine (or precise), and various shapes can be easily realized, and the non-transmission area BA of the window member 200 can be further changed in design and enhanced in quality.

[0114] After forming the second printing layer 20, at least one third printing layer may be further formed on the second printing layer 20. The third printing layer may be directly formed on the second printing layer 20, for example, by spraying, depositing, coating, or printing, or alternatively, the third printing layer may be formed on a separate film and then the film is attached to the second printing layer 20.

[0115] As described above, the window member 200 / 200 a on which the first and second printed layers 10 and 20 are formed may be combined with the display panel 100 to manufacture the display device 1000 according to exemplary embodiments.

[0116] Next, refer to Fig.11 A window member 200 / 200 a of a display device according to an exemplary embodiment of the present disclosure is described.

[0117] Fig.11 is a cross-sectional view of a window member 200 / 200 a of a display device 1000 according to an exemplary embodiment of the present disclosure.

[0118] refer to Fig.11 The window member 200 / 200a of the display device 1000 according to the present exemplary embodiment is substantially the same as most of the above exemplary embodiments, but a second printed layer 20a may be provided on the first printed layer 10, and an adhesive layer 25 and a film 26 may be provided between the second printed layer 20a and the first printed layer 10. The second printed layer 20a may have substantially the same properties as the above-described second printed layer 20. The film 26 may be a plastic film such as PET.

[0119] According to another exemplary embodiment, the positions of the second printed layer 20a and the film 26 in the cross-sectional view may be changed.

[0120] exist Fig.11 In the illustrated exemplary embodiment, the removed portion 11 of the first printed layer 10 may be filled with air.

[0121] according to Fig.11 The manufacturing method of the window member 200 / 200a of the display device 1000 of the exemplary embodiment shown is similar to most of the methods according to Figures 4 to 10 The manufacturing methods of the window members of the display devices of the illustrated exemplary embodiments are substantially the same, however, the steps after the laser patterning of the first printed layer 10 may be different.

[0122] For example, the second printed layer 20 a may be formed on a separately provided film 26 , and then the film 26 formed with the second printed layer 20 a may be attached to the first printed layer 10 through the adhesive layer 25 .

[0123] Next, refer to Fig.12 Examples of various patterns of the printed layer of the window member 200 / 200 a of the display device 1000 according to an exemplary embodiment are described.

[0124] Fig.12 Various examples of patterns of the printed layer of the window member 200 / 200 a of the display device 1000 according to an exemplary embodiment of the present disclosure are shown.

[0125] refer to Fig.12 , the pattern of the first printed layer 10 according to the shape of the removed portion 11 of the first printed layer 10 of the window member 200 according to the exemplary embodiment of the present disclosure may be appropriately changed. For example, Fig.12 As shown in the drawings, the first printing layer 10 may have removed portions 11 forming various patterns, and the patterns may be repeated and arranged in the first direction DR1 and / or the second direction DR2.

[0126] While the present disclosure has been described in conjunction with what are currently considered to be practical exemplary embodiments, it will be understood that the present disclosure is not limited to the disclosed embodiments. On the contrary, the present disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the present disclosure.

[0127] Description of some reference symbols

[0128] 10: First printing layer

[0129] 11: Remove part (or cavity)

[0130] 20: Second printing layer

[0131] 100: Display panel

[0132] 110: Base

[0133] 120: Encapsulation layer

[0134] 150: Shell member

[0135] 200: Window widget

[0136] 200a: Window widget

[0137] 210: Base member

[0138] 500: Flexible printed circuit substrate

[0139] 600: Printed Circuit Board (PCB)

[0140] 1000: Display device

[0141] TA: Transmission Area

[0142] BA: Non-transmissive area

[0143] SF1: Lower surface

[0144] SF2: Upper surface

[0145] W1: Width

Claims

1. A display device, wherein: The display device comprises: Display panel, including: a display area comprising a plurality of pixels; and a peripheral area outside the display area; and Windows, including: a transmissive area corresponding to the display area; a non-transmitting area corresponding to the peripheral area; matrix; a first printed layer directly on the first surface of the substrate, the first printed layer having a cavity disposed in the non-transmissive region; a second printed layer on the first printed layer, the second printed layer having a color different from the first printed layer; and a film between the second printed layer and the first printed layer, Wherein, the second printing layer continuously overlaps with both the first printing layer and the cavity.

2. The display device according to claim 1, in, The second printing layer includes a portion in contact with the first printing layer, and Wherein, the second printing layer fills the space in the cavity.

3. The display device according to claim 2, wherein: At least a portion of the space in the cavity is not filled with the second printed layer.

4. The display device according to claim 3, wherein: The window also includes an adhesive layer between the second printed layer and the first printed layer.

5. The display device according to claim 1, wherein: The cavity is formed by laser patterning.

6. The display device according to claim 1, wherein: The color of the first printed layer is black, and The color of the second printing layer is color or metallic color.

Citation Information

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