Organic light emitting display device including light guide member and method of manufacturing light guide member

Abstract

An organic light emitting display device includes a display panel including a circuit element layer and a light guide member disposed on the circuit element layer, the light guide member having a bottom surface and a top surface opposite the bottom surface, wherein the light guide member includes: a plurality of lens patterns extending from the bottom surface toward the top surface and irregularly disposed in the light guide member; a lens connection portion disposed between the plurality of lens patterns and in contact with the plurality of lens patterns; and a filling layer disposed on the plurality of lens patterns and the lens connection portion.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of Korean Patent Application No. 10-2023-0100107, filed on Jul. 31, 2023, and Korean Patent Application No. 10-2024-0097386, filed on Jul. 23, 2024, which are hereby incorporated by reference as if fully set forth herein. Technical Field

[0003] The present disclosure relates to an organic light emitting display device including a light guide member capable of reducing external light reflectivity and a method of manufacturing the light guide member. Background Art

[0004] As the information society develops, the demand for display devices has also developed in various forms. In response, various flat panel display devices such as liquid crystal displays (LCDs), organic light emitting displays (OLEDs), and micro LED displays have been developed in recent years.

[0005] Organic light-emitting displays have attracted much attention as next-generation flat-panel displays because they have high response speeds, low power consumption, and self-luminescence (which does not require a separate light source, unlike liquid crystal displays).

[0006] The organic light emitting display device displays an image through light emission of a light emitting element including a light emitting layer interposed between two electrodes.

[0007] Meanwhile, when light is introduced into the display device from the outside, the introduced light is reflected by electrodes and wirings disposed inside the display device to form reflected light. In this case, when the reflected light is emitted through the light emitting surface of the display device, the reflected light can be visually recognized as a mura (spot) pattern, for example, a rainbow mura pattern or a ring mura pattern. In this case, there is a problem that it is difficult to achieve true black in the off state of the display device.

[0008] To solve this problem, a light guide member including a plurality of lens patterns is introduced into the display device. However, the heights of the plurality of lens patterns are different from each other, resulting in a contrast difference in which a flicker is recognized, which can fatigue the user's eyes and make it difficult to achieve true black. Summary of the invention

[0009] The present disclosure has been made in view of the above problems, and an object of the present disclosure is to provide an organic light-emitting display device with improved flicker, which includes a plurality of lens patterns that can minimize or reduce the occurrence of rainbow mura and ring mura phenomena due to reflection of external light, and has lens connecting portions between the plurality of lens patterns so as to reduce contrast deviation by reducing the height difference between the plurality of lens patterns and a plurality of recessed portions disposed between the plurality of lens patterns.

[0010] According to one aspect of the present disclosure, the above-mentioned objectives and other objectives can be achieved by providing an organic light-emitting display device, which includes: a display panel, the display panel including a circuit element layer and a light-guiding component arranged on the circuit element layer, the light-guiding component having a bottom surface and a top surface opposite to the bottom surface, wherein the light-guiding component includes a plurality of lens patterns extending from the bottom surface toward the top surface and irregularly arranged in the light-guiding component, a lens connecting portion arranged between and in contact with the plurality of lens patterns, and a filling layer arranged on the plurality of lens patterns and the lens connecting portion.

[0011] In addition, the above and other purposes can be achieved by providing a method for manufacturing a light-guiding component of an organic light-emitting display device, the method comprising: a step of forming a first pattern on a surface of a mold using a laser, the first pattern comprising a plurality of first recessed portions; a step of forming a second pattern on the surface of the mold by forming a plurality of second recessed portions at boundaries between the plurality of first recessed portions of the first pattern using a sandblasting process; a step of forming a plurality of lens patterns and lens connecting portions located between the plurality of lens patterns using a mold comprising the first pattern and the second pattern; and a step of forming a filling layer on the plurality of lens patterns and the lens connecting portions, wherein the plurality of first recessed portions correspond to the plurality of lens patterns, and the plurality of second recessed portions correspond to the lens connecting portions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and other objects, features and other advantages of the present disclosure will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0013] Figure 1 is a plan view of an organic light emitting display device according to an embodiment of the present disclosure.

[0014] Figure 2 is a schematic partial cross-sectional view of an organic light-emitting display device according to an embodiment of the present disclosure. In this case, Figure 2 Corresponding to the Figure 1 A cross section taken along line II′ is shown in FIG.

[0015] Figure 3Ais a plan view of a light guide component according to an embodiment of the present disclosure, Figure 3B is a plan view showing only a plurality of lens patterns except for a lens connection portion of a light guide member according to one embodiment of the present disclosure.

[0016] Figure 4A is a partial cross-sectional view showing a portion of a light guide member according to an embodiment of the present disclosure. In this case, Figure 4A is along Figure 3A A cross-sectional view taken along line II-II′ shown in FIG.

[0017] Figure 4B is a partial cross-sectional view showing a portion of a light guide component according to an embodiment of the present disclosure. In this case, Figure 4B is along Figure 3A A cross-sectional view taken along line III-III′ shown in FIG.

[0018] Figure 4C is a partial cross-sectional view showing a portion of a light guide component according to an embodiment of the present disclosure. In this case, Figure 4C is along Figure 3A A cross-sectional view taken along line IV-IV′ shown in FIG.

[0019] Figure 5 is a diagram for explaining that flicker occurs when a lens connecting portion does not exist in a light guide member according to an embodiment of the present disclosure.

[0020] FIG. 6A to FIG. 6D is a cross-sectional view schematically illustrating a method of manufacturing a light guide member according to an embodiment of the present disclosure.

[0021] Fig. 7A and Figure 7B is a schematic diagram of a surface of a mold for forming a light guide member according to an embodiment of the present disclosure, and in this case, Fig. 7A and Fig. 6A The surface of the mold shown in FIG. Figure 7B and Figure 6B The surface of the mold shown in FIG.

[0022] FIG. 8A to FIG. 8D is a partial cross-sectional view schematically showing a method for manufacturing a light guide component according to an embodiment of the present disclosure. In this case, Fig. 8A and Figure 8B Along Fig. 7A and Figure 7B A partial cross-sectional view taken along line VV′ shown in FIG. Figure 8C and Fig.8D is along Figure 3A A partial cross-sectional view taken along line II-II′ shown in FIG.

[0023] 9A to 9D is a partial cross-sectional view schematically showing a method for manufacturing a light guide component according to an embodiment of the present disclosure. In this case, Fig.9A and Fig. 9B Along Fig. 7A and Figure 7B The partial cross section taken along the line VI-VI′ shown in FIG. Fig. 9C and Fig.9D is along Figure 3A A partial cross section taken along line III-III′ is shown in FIG.

[0024] FIG. 10A to FIG. 10D is a partial cross-sectional view schematically showing a method for manufacturing a light guide component according to an embodiment of the present disclosure. In this case, Fig. 10A and Fig. 10B Along Fig. 7A and Figure 7B The partial cross section taken along the line VII-VII′ shown in FIG. Fig. 10C and Fig. 10D is along Figure 3A A partial cross section taken along line IV-IV′ is shown in FIG.

[0025] Fig.11 is a cross-sectional view of a light guide member according to another embodiment of the present disclosure.

[0026] FIG. 12A to FIG. 12C is a cross-sectional view schematically illustrating a method of manufacturing a light guide member according to another embodiment of the present disclosure.

[0027] FIG. 13A to FIG. 13C is an example of a planar TEM photograph of a light guide member according to another embodiment of the present disclosure.

[0028] Fig.14A and Fig. 14B is an example of a planar TEM photograph of a light guide member according to another embodiment of the present disclosure.

[0029] Fig.15 is a cross-sectional view of a light guide member according to another embodiment of the present disclosure.

[0030] FIG. 16A to FIG. 16C is a cross-sectional view schematically illustrating a method of manufacturing a light guide member according to another embodiment of the present disclosure.

[0031] 17A to 17C is an example of a planar TEM photograph of a light guide member according to another embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] The advantages and features of the present disclosure and its implementation method will be described by the following embodiments described in conjunction with the accompanying drawings. However, the present disclosure can be implemented in different forms and should not be construed as being limited to the embodiments described herein. On the contrary, these embodiments are provided to make the present disclosure comprehensive and complete and to fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is limited only by the scope of the claims.

[0033] The shapes, sizes, ratios, angles, and quantities disclosed in the accompanying drawings for describing the embodiments of the present disclosure are merely examples, and the present disclosure is not limited to the details shown. The same reference numerals always refer to the same elements. In the following description, when it is determined that a detailed description of a related known function or configuration does not necessarily obscure the key points of the present disclosure, the detailed description will be omitted.

[0034] In the case where “including,” “having,” and “comprising” described in the present disclosure are used, another component may also be present unless “only” is used. Terms in the singular form may include plural forms unless otherwise specified.

[0035] In interpreting the ingredients, the ingredients are interpreted as including the error range even though it is not explicitly described.

[0036] When describing a positional relationship, for example, when the positional order is described as “on,” “above,” “under,” “below,” and “beside,” unless “just” or “directly” is used, a case where there is no contact between them may be included.

[0037] When referring to a first element being positioned "on" a second element, this does not mean that the first element is positioned substantially above the second element in the figure. The upper and lower portions of the object of interest may vary depending on the orientation of the object. Thus, the situation where a first element is positioned "on" a second element includes the situation where the first element is positioned "below" the second element in the figure or in an actual configuration as well as the situation where the first element is positioned "on" the second element.

[0038] When describing a time relationship, for example, when a time sequence is described as “after,” “following,” “following,” and “before,” discontinuous cases may be included unless “just” or “directly” is used.

[0039] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0040] It should be understood that the term "at least one" includes all combinations related to any one item. For example, "at least one of a first element, a second element, and a third element" may include all combinations of two or more elements selected from the first element, the second element, and the third element, as well as each element of the first element, the second element, and the third element.

[0041] The features of the various embodiments of the present disclosure may be partially or wholly interconnected or combined, and may interoperate and technology-driven in various ways. The embodiments of the present disclosure may be implemented independently of each other, or may be implemented together in a mutually dependent relationship. In addition, the term "may (can)" covers all meanings and scopes of the term "may (can)". In addition, all components of each display device according to all embodiments of the present disclosure are operatively connected and configured.

[0042] In the drawings, the same or similar elements are denoted by the same reference numerals even though they are shown in different drawings.

[0043] In the embodiments of the present disclosure, for convenience of explanation, the source electrode and the drain electrode are distinguished from each other. However, the source electrode and the drain electrode are used interchangeably, and therefore, the source electrode may be the drain electrode, and the drain electrode may be the source electrode. In addition, the source electrode in any embodiment of the present disclosure may be the drain electrode in another embodiment of the present disclosure, and the drain electrode in any embodiment of the present disclosure may be the source electrode in another embodiment of the present disclosure.

[0044] In one or more embodiments of the present disclosure, for ease of explanation, the source region is separated from the source electrode region, and the drain region is separated from the drain electrode region. However, the embodiments of the present disclosure are not limited to this structure. For example, the source region may be a source electrode, and the drain region may be a drain electrode. In addition, the source region may be a drain electrode, and the drain region may be a source electrode.

[0045] Figure 1 FIG. 4 is a plan view of an organic light emitting display device according to an embodiment of the present disclosure.

[0046] like Figure 1 As shown, an organic light emitting display device according to an embodiment of the present disclosure may include a display panel including a first substrate 100 and a second substrate 500 opposite to the first substrate 100 , and the first substrate 100 and the second substrate 500 are bonded to each other.

[0047] The first substrate 100 may include a thin film transistor and may be a transparent glass substrate or a plastic substrate. The first substrate 100 may include a display area (or active area) AA where an image is displayed and a non-display area (or inactive area) IA where an image is not displayed, depending on whether the image is displayed through pixels.

[0048] The display area AA may be an area where an image is displayed, and may be a pixel array area, an effective area, a pixel array unit, a display unit, or a screen. The display area AA may include a plurality of pixels P.

[0049] A plurality of pixels P may be arranged along each of a first direction (e.g., an X direction) and a second direction (e.g., a Y direction) intersecting the first direction X. Each of the plurality of pixels P may be a unit area that emits actual light. For example, the plurality of pixels P may be arranged to have a pixel pitch along the first direction X. The pixel pitch may be a size of each of the plurality of pixels P relative to the first direction X, a distance between one side of each of two pixels P adjacent along the first direction X, or a distance between central portions of two pixels P adjacent along the first direction X.

[0050] Each of the plurality of pixels P may include a plurality of adjacent sub-pixels SP. For example, the plurality of sub-pixels SP may constitute the plurality of pixels P. For example, the first direction X may be the first length direction, the long side length direction, the horizontal direction, or the first horizontal direction of the first substrate 100. For example, the second direction Y may be the second length direction, the short side length direction, the vertical direction, or the second horizontal direction of the first substrate 100.

[0051] The non-display area IA is an area where no image is displayed, and may be a peripheral circuit area, a signal supply area, an invalid area, or a frame area. The non-display area IA may be configured to surround the display area AA. The display panel or the first substrate 100 may further include a peripheral circuit unit 150 disposed in the non-display area IA. The peripheral circuit unit 150 may include a gate driving circuit connected to a plurality of sub-pixels SP.

[0052] The second substrate 500 may be configured to overlap the display area AA. The second substrate 500 may be bonded to face the first substrate 100 by an adhesive member (or a transparent adhesive or an optically transparent adhesive), or may be provided in a manner that an organic material or an inorganic material is stacked on the first substrate 100. The second substrate 500 may be an upper substrate or an encapsulation substrate, and may be used to encapsulate the first substrate 100.

[0053] Figure 2 is a schematic partial cross-sectional view of an organic light-emitting display device according to an embodiment of the present disclosure. In this case, Figure 2 Corresponding to the Figure 1 A cross section taken along line II′ is shown in FIG.

[0054] like Figure 2 As shown, the organic light emitting display device according to an embodiment of the present disclosure may include a first substrate 100 , a circuit element layer 110 , a light emitting element layer 120 , an encapsulation layer 200 , a color filter 300 , a light guide member 400 , and a second substrate 500 .

[0055] The first substrate 100 may include a thin film transistor, and may be a first substrate, a base substrate, a lower substrate, a transparent glass substrate, a transparent plastic substrate, or a base member.

[0056] The first substrate 100 may include a circuit element layer 110, a planarization layer 119, and a light emitting element layer 120. The circuit element layer 110 may include a buffer layer 112, a pixel circuit, and a protective layer 118.

[0057] The buffer layer 112 may be disposed on the entire first surface (or front surface) of the first substrate 100. The buffer layer 112 may be used to block substances contained in the first substrate 100 from diffusing into the pixel circuit in a high temperature process during the thin film transistor manufacturing process, or may also be used to prevent external moisture or humidity from penetrating toward the light emitting element layer 120. Alternatively, the buffer layer 112 may be omitted in some cases.

[0058] The pixel circuit may include a driving thin film transistor disposed in the circuit area CA of each sub-pixel SP. The driving thin film transistor may include an active layer 113, a gate insulating layer 114, a gate electrode 115, an interlayer insulating layer 116, a source electrode 117a, and a drain electrode 117b.

[0059] The active layer 113 may be formed of a semiconductor material based on any one of amorphous silicon, polysilicon, oxide, and an organic material. The active layer 113 may include a channel region 113a, a drain region 113c, and a source region 113b.

[0060] The gate insulating layer 114 may be formed in an island shape only on the channel region 113 a of the active layer 113 , or may be formed on the entire front surface of the first substrate 100 or the entire front surface of the buffer layer 112 on which the active layer 113 is disposed.

[0061] The gate electrode 115 may be disposed on the gate insulating layer 114 so as to overlap the channel region 113 a of the active layer 113 .

[0062] The interlayer insulating layer 116 may be formed on the gate electrode 115 and the drain and source regions 113c and 113b of the active layer 113. The interlayer insulating layer 116 may be formed on the entire front surface of the first substrate 100 or the buffer layer 112. For example, the interlayer insulating layer 116 may be formed of an inorganic material or an organic material.

[0063] The source electrode 117a may be disposed on the interlayer insulating layer 116 so as to be electrically connected to the source region 113b of the active layer 113. The drain electrode 117b may be disposed on the interlayer insulating layer 116 so as to be electrically connected to the drain region 113c of the active layer 113.

[0064] The pixel circuit may further include at least one capacitor and at least one switching thin film transistor disposed in the circuit area CA together with the driving thin film transistor.

[0065] The organic light emitting display device according to the present disclosure may further include a light blocking layer 111 disposed under the active layer 113 of the driving thin film transistor and / or the active layer of the switching thin film transistor. The light blocking layer 111 may be configured to minimize or prevent a change in the threshold voltage of the thin film transistor due to external light.

[0066] The protective layer 118 may be configured on the pixel circuit. For example, the protective layer 118 may be configured to cover the source electrode 117a, the drain electrode 117b and the interlayer insulating layer 116 of the driving thin film transistor. For example, the protective layer 118 may be formed of an inorganic insulating material and may be represented by a passivation layer or the like.

[0067] The planarization layer 119 may be disposed on the circuit element layer 110. The planarization layer 119 may be formed on the entire display area and the remaining area of ​​the non-display area except the pad area. For example, the planarization layer 119 may include an extension portion (or extension portion) extending or extending from the display area toward the non-display area except the pad area. Therefore, the planarization layer 119 may have a relatively larger size than the display area.

[0068] The planarization layer 119 according to one embodiment may be formed to have a relatively large thickness in order to provide a planarized surface on the circuit element layer 110. For example, the planarization layer 119 may be made of an organic material such as photo acrylic, benzocyclobutene, polyimide, fluororesin, etc.

[0069] Meanwhile, although not shown in detail, the planarization layer 119 may include a light extraction unit disposed in each sub-pixel SP. The light extraction unit may be formed in the planarization layer 119 so as to overlap with the light emitting area EA defined in the sub-pixel area SPA of each sub-pixel SP. In this case, the light extraction unit may be formed in the planarization layer 119 so as to have a curved portion (or uneven portion). In this case, the curved portion may include a plurality of concave portions and a plurality of convex portions. The light extraction unit may be formed in the planarization layer 119 so as to have a curved (or uneven) shape. When the light extraction unit 2 is disposed in the planarization layer 119, the external extraction efficiency of the light emitted from the light emitting element layer 120 may be improved.

[0070] The light emitting element layer 120 may overlap with the light emitting area EA of each sub-pixel SP. The light emitting element layer 120 according to one embodiment may include a first electrode E1, a light emitting layer EL, and a second electrode E2. For example, the first electrode E1, the light emitting layer EL, and the second electrode E2 may be configured to emit light toward the second substrate 500 according to a top emission method. However, the present disclosure is not limited thereto, and the first electrode E1, the light emitting layer EL, and the second electrode E2 may be configured to emit light toward the first substrate 100 according to a bottom emission method.

[0071] The first electrode E1 may be formed on the planarization layer 119 in the sub-pixel area SPA so as to be electrically connected to the source electrode 117a of the driving thin film transistor. One end of the first electrode E1 adjacent to the circuit area CA may be electrically connected to the source electrode 117a of the driving thin film transistor through an electrode contact hole CH provided in the planarization layer 119 and the protective layer 118.

[0072] The light emitting layer EL may be formed on the first electrode E1 so as to be in direct contact with the first electrode E1.

[0073] According to an embodiment, the light emitting layer EL may include two or more organic emission layers for emitting white light. For example, the light emitting layer EL may include a first organic emission layer emitting a first light and a second organic emission layer emitting a second light, so as to emit white light by mixing the first light and the second light.

[0074] The second electrode E2 may be formed on the light emitting layer EL so as to be in direct contact with the light emitting layer EL. The second electrode E2 may be formed (or deposited) on the light emitting layer EL so as to have a relatively thin thickness compared with the light emitting layer EL. The second electrode E2 may be a cathode electrode.

[0075] According to one embodiment of the present disclosure, the first electrode E1 may include a metal material having a high reflectivity so as to reflect light emitted from the light emitting layer EL and incident thereon toward the second substrate 500. For example, the first electrode E1 may include a single-layer structure or a multi-layer structure formed of any one material selected from aluminum (Al), silver (Ag), molybdenum (Mo), gold (Au), magnesium (Mg), calcium (Ca), or barium (Ba). The first electrode E1 may be an anode electrode.

[0076] Meanwhile, although not shown in detail in the figure, when the light extraction unit is disposed in the planarization layer 119, the first electrode E1, the light emitting layer EL, and the second electrode E2 may have a surface shape directly following the surface morphology of the light extraction unit, which surface morphology includes a plurality of convex portions and a plurality of concave portions. For example, the first electrode E1, the light emitting layer EL, and the second electrode E2 are formed into a conformal shape directly following the surface shape (or morphology) of the light extraction unit through a deposition process, and thus may have a cross-sectional structure having the same shape as the light extraction unit.

[0077] The organic light-emitting display device according to the exemplary configuration of the present disclosure may further include a bank layer 121. The bank layer 121 may be disposed on the edges of the planarization layer 119 and the first electrode E1. The bank layer 121 may be formed of a transparent material or an opaque material. For example, the bank layer 121 may be a transparent bank layer or a black bank layer. For example, the bank layer 121 may be formed of a photosensitizer including a black pigment, in which case the bank layer 121 may also serve as a light blocking member between adjacent sub-pixels SP.

[0078] The encapsulation layer 200 may be formed on the first substrate 100 so as to cover the light emitting element layer 120. The encapsulation layer 200 may be formed on the second electrode E2. For example, the encapsulation layer 200 may overlap with the display region. The encapsulation layer 200 may protect the thin film transistor and the light emitting layer EL from external impacts, and may be used to prevent oxygen and / or moisture, other particles from penetrating into the light emitting layer EL.

[0079] The encapsulation layer 200 according to the present disclosure may include a plurality of inorganic encapsulation layers. In addition, the encapsulation layer 200 may further include at least one organic encapsulation layer interposed between the plurality of inorganic encapsulation layers. The encapsulation layer 200 according to another embodiment may be changed to a filler overlapping the entire display area, in which case the second substrate 500 may be bonded to the first substrate 100 through the filler. The filler may include a getter material that absorbs oxygen and / or moisture.

[0080] The color filter 300 may be disposed on the encapsulation layer 200. Specifically, it may be disposed between the encapsulation layer 200 and the second substrate 500. The color filter 300 may be disposed between the encapsulation layer 200 and the second substrate 500 so as to overlap with at least one light emitting area EA. For example, the color filter 300 may be formed directly on the upper surface of the encapsulation layer 200 so as to overlap with the light emitting area EA. In this case, the color filter 300 may directly contact the upper surface of the encapsulation layer 200. However, the present disclosure is not limited thereto, and the color filter 300 may be disposed on the inner surface of the second substrate 500 (which faces the upper surface of the encapsulation layer 200) so as to overlap with the light emitting area EA. For example, the second substrate 500 having the color filter 300 may be coupled to the encapsulation layer 200 by a transparent adhesive member.

[0081] The color filter 300 may have a width wider than that of the emission area EA. For example, the color filter 300 may have a width corresponding to the entire sub-pixel area SPA of each sub-pixel SP, thereby reducing light leakage between adjacent sub-pixels SP.

[0082] The color filter 300 according to the present disclosure may be configured to transmit the wavelength of the color set in the sub-pixel SP. For example, when one pixel P is composed of the first to fourth sub-pixels, the color filter 300 may include a red color filter disposed in the first sub-pixel emitting red light, a green color filter disposed in the third sub-pixel emitting green light, and a blue color filter disposed in the fourth sub-pixel emitting blue light. The second sub-pixel emitting white light may not include a color filter or may include a transparent material for step compensation, thereby emitting white light.

[0083] The black matrix 310 may be disposed between the plurality of color filters 300 .

[0084] The black matrix 310 may be arranged to overlap with the remaining area of ​​each sub-pixel SP except the emission area EA. Alternatively, the remaining area of ​​each sub-pixel SP except the emission area EA may include a stacked structure formed by at least two color filters (instead of the black matrix 310). For example, the remaining area of ​​each sub-pixel SP except the emission area EA may include a stacked structure formed by at least two of a red color filter, a green color filter, and a blue color filter. The stacked structure formed by at least two color filters may replace the black matrix 310 to prevent color mixing between adjacent sub-pixels SP.

[0085] The second substrate 500 may be disposed on the color filter 300. The second substrate 500 may be made of a plastic material, a glass material, or a metal material. Meanwhile, when the encapsulation layer 200 includes a plurality of inorganic encapsulation layers, the second substrate 500 may be omitted.

[0086] Alternatively, when the encapsulation layer 200 is changed into a filler, the second substrate 500 may be combined with the filler, in which case the second substrate 500 may be made of a plastic material, a glass material, or a metal material.

[0087] The light guide component 400 may be disposed between the color filter 300 and the second substrate 500, and the light guide component 400 may be disposed or configured on a first surface (i.e., lower surface) of the second substrate 500, the first surface being opposite to a second surface (i.e., upper surface) of the second substrate 500 (serving as a light emitting surface).

[0088] The light guide member 400 according to one embodiment of the present disclosure may be coupled to the lower surface of the second substrate 500 by an adhesive member (or a first transparent adhesive member) 450. For example, the light guide member 400 may be coupled to the entire lower surface of the second substrate 500 by the adhesive member 450. In this case, the light guide member 400 may have the same size as the lower surface of the second substrate 500.

[0089] The light guide member 400 may be configured to improve black visibility characteristics due to reflection of external light in a non-driving or off state of the organic light emitting display device. For example, in a non-driving or off state of the organic light emitting display device, light incident from the outside is reflected by electrodes and wirings of the circuit element layer 110 to form reflected light, and the reflected light may form a rainbow mura pattern (or rainbow stain pattern) having rainbow colors and extending radially and / or a circular ring pattern in a radial form due to the dispersion characteristics of the light depending on the diffraction characteristics.

[0090] The reflected light may cause multiple interference and / or enhanced interference of light according to the difference in the refraction angle of each wavelength, thereby generating a rainbow mura pattern and / or a radial ring pattern, thereby reducing black visibility characteristics.

[0091] The light guide member 400 according to an embodiment of the present disclosure may be configured to diffract and / or scatter external light incident into the display device from the outside through the second substrate 500 based on the principle of light refraction according to a cross-sectional shape having a refractive index difference, or to redisperse (or disperse) the diffraction dispersion spectrum of the reflected light. For example, the light guide member 400 may suppress or minimize the occurrence of the radial rainbow mura phenomenon by mixing between adjacent spectra according to the diffraction order of the reflected light by reducing the intensity of the diffraction dispersion spectrum or redispersing the diffraction dispersion spectrum so as to greatly expand the size of the spectrum.

[0092] The light guide component 400 may include a lens pattern. The lens pattern may diffract and / or scatter external light incident on the light emitting element layer 120 from the outside, or diffract and / or scatter the reflected light based on the principle of light refraction with a refractive index difference. Therefore, by canceling or minimizing the multiple interference and / or enhancing the interference of the reflected light, the occurrence of rainbow mura patterns and / or ring patterns can be reduced or minimized, and according to one embodiment of the present disclosure, the decline in black visibility characteristics caused by external light reflection can be alleviated, and true black can be achieved in a non-driven or off state of the display device. For example, the light guide component 400 may be a light guide pattern unit, a light refraction unit, a light refraction member, a spectral dispersion unit, a spectral reduction unit, or a diffraction spectral dispersion unit.

[0093] According to one embodiment of the present disclosure, the light guide member 400 may have a haze value greater than or equal to 5% and less than or equal to 15%. When the haze value of the light guide member 400 is less than 5%, a mura pattern caused by reflection of external light can be identified, and when the haze value of the light guide member 400 is greater than 15%, a mura pattern caused by reflection of external light can be identified according to a plurality of lens patterns (see Figure 4A L1 to Ln) and a plurality of recessed portions (see Figure 4AMeanwhile, the haze value of the light guide member 400 is preferably greater than or equal to 7% and less than or equal to 13%.

[0094] In this case, the haze value can be defined as the surface characteristics of the sample when light is transmitted to the sample, such as the optical characteristics of the sample regarding roughness. Specifically, the haze value of the light guide component 400 according to an embodiment of the present disclosure can be optically photographically measured according to ASTM D 1003-07 ("a standard test method for haze and luminous transmission of transparent plastics").

[0095] Meanwhile, although not shown, the organic light emitting display device according to one embodiment of the present disclosure may further include a polarization member, which may be disposed on the light guide member 400 to block light introduced from the outside from being reflected by the pixel circuit or the like.

[0096] By including the light guide member 400 , the organic light emitting display device according to one embodiment of the present disclosure can improve black visibility characteristics due to reflection of external light, minimize or reduce the occurrence of rainbow Mura phenomenon and ring Mura phenomenon, thereby achieving true black in a non-driven or turned-off state of the display device.

[0097] In addition, Figure 2 The embodiment of the present invention only describes the light guide component 400 according to one embodiment, but is not limited thereto. Fig.11 The light guide member 800 or according to Fig.15 The light guide member 900 is applied as another embodiment. It should be understood that the light guide component may be referred to as a light guide member in this document.

[0098] Figure 3A is a plan view of a light guide component according to an embodiment of the present disclosure, Figure 3B is a plan view showing only a plurality of lens patterns excluding a lens connection portion of a light guide member according to one embodiment of the present disclosure.

[0099] like Figure 3A As shown, the light guide member 400 according to one embodiment of the present disclosure may include a plurality of lens patterns 410 and a lens connection portion 420. Figure 3A , the lens connecting portion 420 is described as being disposed only in some regions of the plurality of lens patterns 410 , but the lens connecting portion 420 may be disposed in all boundaries provided between the plurality of lens patterns 410 .

[0100] According to an embodiment of the present disclosure, a plurality of lens patterns 410 and lens connecting portions 420 may be irregularly arranged in the light guide member 400 in an amorphous state. Figure 3B A configuration in which the plurality of lens patterns 410 are irregularly disposed in an amorphous state is described in detail.

[0101] like Figure 3B As shown, the plurality of lens patterns 410 may include first to n-th lens patterns L1 to Ln. In this case, each of the lens patterns L1 to Ln (in this case, n is an integer greater than or equal to 1) may be arranged in a circular shape on a plane. However, the shape of each of the plurality of lens patterns is not limited thereto and may be arranged in various shapes according to the technical level of the art.

[0102] Each of the plurality of lens patterns L1 to Ln may include a center point MP1 to MPn disposed at each center thereof (in this case, n is an integer greater than or equal to 1). According to one embodiment of the present disclosure, the center point MP1 to MPn of each of the plurality of lens patterns L1 to Ln may be disposed on the same straight line or may not be disposed on the same straight line.

[0103] For example, at the first center point MP1 of the first lens pattern L1 among the multiple lens patterns 410, a virtual first line DL1 extending in the first direction X through the first center point MP1, a virtual second line DL2 extending in the second direction Y through the first center point MP1, a virtual third line DL3 and a virtual fourth line DL4 passing through the first center point MP1 and located between the virtual first line DL1 and the virtual second line DL2 and orthogonal to each other may be set.

[0104] The virtual first to fourth lines DL1 to DL4 of the first lenticular pattern L1 may or may not overlap with the center points MP2 to MPn of the other adjacent lenticular patterns L2 to Ln.

[0105] Each of the plurality of lens patterns L1 to Ln may have a predetermined diameter D1 to Dn (in this case, n is an integer greater than or equal to 1). In this case, the plurality of lens patterns L1 to Ln may have different diameters D1 to Dn, or some of them may be the same.

[0106] According to one embodiment of the present disclosure, each of the diameters D1 to Dn of the plurality of lens patterns L1 to Ln may be greater than or equal to 10 μm and less than or equal to 60 μm. When each of the diameters D1 to Dn of the plurality of lens patterns L1 to Ln is less than 10 μm, it is difficult to manufacture the plurality of lens patterns L1 to Ln that are distinguished, and when each of the diameters D1 to Dn of the plurality of lens patterns L1 to Ln exceeds 60 μm, each of the plurality of lens patterns L1 to Ln may be visually recognized, and in addition, each of the plurality of lens patterns L1 to Ln may be visually recognized by being aligned with the light emitting element layer 120 (see Figure 2 ) are arranged regularly, and moiré fringes (regular patterns) can be visually identified.

[0107] Meanwhile, although not shown in detail, since the plurality of lens patterns L1 to Ln are different from each other or have different diameters D1 to Dn, the plurality of lens patterns L1 to Ln may have different heights from each other. In this case, the height-diameter ratio of each of the plurality of lens patterns L1 to Ln may be greater than or equal to 20% and less than or equal to 50%. In this case, the height-diameter ratio may be defined as the height of each of the plurality of lens patterns L1 to Ln (see Figure 4A H1 to Hn in FIG. 1 and the diameter of a corresponding one of the plurality of lens patterns L1 to Ln (see Figure 3B When the height-to-diameter ratio of each of the plurality of lens patterns L1 to Ln is less than 20%, a mura pattern may be recognized, and when the height-to-diameter ratio of each of the plurality of lens patterns L1 to Ln exceeds 50%, the plurality of lens patterns L1 to Ln cannot be easily manufactured.

[0108] In addition, although the figure only shows the appearance that each of the plurality of lens patterns L1 to Ln contacts the adjacent lens pattern, it is not limited thereto, and different adjacent lens patterns among the plurality of lens patterns L1 to Ln may be spaced apart from each other by a predetermined distance and may not contact each other. In addition, some of the plurality of lens patterns L1 to Ln may overlap with each other, in which case the overlapping different lens patterns may share some areas with each other.

[0109] The meaning that each of the plurality of lens patterns L1 to Ln may be irregularly arranged in an atypical manner may be defined as follows, that is, the center points MP1 to MPn of the plurality of lens patterns L1 to Ln may be positioned on the same straight line or may not be positioned on the same straight line, the diameters D1 to Dn of the plurality of lens patterns L1 to Ln may be the same or different, and adjacent different lens patterns in the plurality of lens patterns L1 to Ln may contact each other or may be spaced apart from each other without contacting each other. Meanwhile, in the present disclosure, the configuration irregularly arranged in an atypical manner is not only applied to the plurality of lens patterns L1 to Ln, but may be applied to all other configurations with the same meaning.

[0110] According to one embodiment of the present disclosure, since a plurality of lens patterns L1 to Ln are irregularly arranged in an irregular form, a mura pattern (e.g., a rainbow mura pattern or a ring mura pattern) formed when light introduced from outside the organic light-emitting display device of the present disclosure is reflected by electrodes and wires arranged inside the organic light-emitting display device can be suppressed or minimized.

[0111] At the same time, if Figure 3B As shown, a boundary may be provided between the plurality of lens patterns L1 to Ln. In this case, the boundary may include a plurality of boundary lines TL1 to TLn and a plurality of boundary areas TA1 to TAm (in this case, m is an integer greater than or equal to 1).

[0112] In this case, each of the plurality of boundary lines TL1 to TLn may be defined as an outer periphery of each of the plurality of lens patterns L1 to Ln. For example, the first boundary line TL1 may be defined as an outer periphery of the first lens pattern L1.

[0113] In addition, a plurality of boundary areas TA1 to TAm may be defined as areas formed by boundary lines of three or more adjacent lens patterns among the plurality of lens patterns L1 to Ln. The plurality of boundary areas TA1 to TAm may be formed by being enclosed between the plurality of lens patterns L1 to Ln. Therefore, each of the plurality of boundary areas TA1 to TAm does not overlap with each of the plurality of lens patterns L1 to Ln.

[0114] The following will refer to Figure 3A The lens connecting portion 420 is provided to overlap with the plurality of lens patterns 410. Figure 3A As shown, according to one embodiment of the present disclosure, the lens connection portion 420 may be disposed to overlap with boundaries of the plurality of lens patterns 410 , for example, overlap with a plurality of boundary lines TL1 to TLn and a plurality of boundary areas TA1 to Tam.

[0115] The lens connection portion 420 may be irregularly disposed in an irregular shape while overlapping the boundaries of the plurality of lens patterns 410. By forming in this manner, a mura pattern (e.g., a rainbow mura pattern or a ring mura pattern) formed when light introduced from outside the organic light-emitting display device of the present disclosure is reflected by electrodes and wires disposed inside the organic light-emitting display device may be suppressed or minimized.

[0116] The lens connection part 420 may extend along the plurality of boundary lines TL1 to TLn and the plurality of boundary areas TA1 to TAm between the plurality of lens patterns 410 , and may be continuous without being disconnected along the plurality of boundary lines TL1 to TLn and the plurality of boundary areas TA1 to Tam.

[0117] The lens connection portion 420 may include a plurality of protrusion structures LC1 to LCo (in this case, o represents an integer greater than or equal to 1).

[0118] In this case, the plurality of convex structures LC1 to LCo may be irregularly disposed in an amorphous state. The plurality of convex structures LC1 to LCo may not be aligned with the center points of the plurality of lens patterns 410 (see Figure 3B MP1 to MPn) overlap.

[0119] Since the plurality of convex structures LC1 to LCo are formed to overlap the plurality of boundary lines TL1 to TLn and the plurality of boundary areas TA1 to TAm of the plurality of lens patterns 410, the lower surface of the light guide member 400 can be entirely formed of lens patterns having a predetermined convex pattern. As described above, in an organic light-emitting display device including a light guide member according to an embodiment of the present disclosure, the occurrence of so-called flicker (where a local area is visually recognized as bright and a local area is visually recognized as dark) caused by the height difference between the plurality of lens patterns arranged in an atypical form and the plurality of recessed portions disposed between the plurality of lens patterns can be suppressed. This will be referred to later. FIG. 4A to FIG. 4C Describe this in detail.

[0120] Figure 4A is a partial cross-sectional view showing a portion of a light guide member according to an embodiment of the present disclosure. In this case, Figure 4A is along Figure 3A A cross-sectional view taken along line II-II′ shown in FIG.

[0121] like Figure 4A As shown, the light guide member 400 according to one embodiment of the present disclosure may include a plurality of lens patterns 410 , a lens connecting portion 420 , and a filling layer 430 .

[0122] The light guide member 400 may include a top surface 400a and a bottom surface 400b. In this case, the bottom surface 400b of the light guide member 400 may be formed to be closer to the light emitting element layer 120 (see FIG. 1 ) provided in the organic light emitting display device according to an embodiment of the present disclosure than the top surface 400a of the light guide member 400. Figure 2 For example, the top surface 400a of the light guide member 400 may be disposed to be aligned with the second substrate 500 of the organic light emitting display device according to an embodiment of the present disclosure (see Figure 2 ), and the bottom surface 400b of the light guide member 400 may be disposed to be adjacent to the first substrate 100 (see Figure 2 ) are adjacent.

[0123] The plurality of lens patterns 410 may include a material having a first refractive index, and may include a convex structure extending from a bottom surface 400 b toward a top surface 400 a of the light guide member 400 .

[0124] The plurality of lens patterns 410 may include, for example, a first lens pattern L1, a second lens pattern L2, and a third lens pattern L3. Figure 4A In this case, since the first to third lens patterns L1 to L3 are atypically and irregularly arranged, they may be formed to have different diameters (see Figure 3B Meanwhile, the present disclosure is not limited thereto, and the first to third lens patterns L1 to L3 may be formed to have the same diameter and different heights, or may be formed to have different diameters and the same height.

[0125] By forming in this manner, a mura pattern (eg, a rainbow mura pattern or a ring mura pattern) formed when light introduced from outside the organic light emitting display device of the present disclosure is reflected by electrodes and wires disposed inside the organic light emitting display device may be suppressed or minimized.

[0126] like Figure 4A As shown, the first to third lens patterns L1 to L3 may have a structure formed to protrude from the bottom surface 400b toward the top surface 400a of the light guide member 400. In this case, the first to third lens patterns L1 to L3 may have first to third heights H1 to H3, respectively.

[0127] In addition, any two of the plurality of lens patterns 410 adjacent to each other may intersect at one point. For example, the first lens pattern L1 may intersect the second lens pattern L2 at a first point P1, and the first lens pattern L1 may intersect the third lens pattern L3 at a second point P2. In this case, the first point P1 and the second point P2 may correspond to the boundary line of the plurality of lens patterns 410 (see Figure 3B TL1 to TLn).

[0128] The lens connection portion 420 may be disposed between the plurality of lens patterns 410. The lens connection portion 420 may include, for example, a first convex structure LC1 and a second convex structure LC2, the first convex structure LC1 may be disposed between the first lens pattern L1 and the second lens pattern L2, and the second convex structure LC2 may be disposed between the first lens pattern L1 and the third lens pattern L3. By forming in this manner, the first convex structure LC1 may contact a portion of the convex surface of the first lens pattern L1 and a portion of the convex surface of the second lens pattern L2, and the second convex structure LC2 may contact a portion of the convex surface of the first lens pattern L1 and a portion of the convex surface of the third lens pattern L3.

[0129] The first convex structure LC1 may overlap a first point P1 where the first lens pattern L1 and the second lens pattern L2 intersect each other. Likewise, the second convex structure LC2 may overlap a second point P2 where the first lens pattern L1 and the third lens pattern L3 intersect each other.

[0130] A height of any portion of the lens connection portion 420 from the bottom surface 400b toward the top surface 400a of the light guide member 400 may be smaller than a height of each of the plurality of lens patterns 410 from the bottom surface 400b toward the top surface 400a of the light guide member 400. For example, a height of the first convex structure LC1 from the bottom surface 400b toward the top surface 400a of the light guide member 400 may be smaller than a first height H1 from the bottom surface 400b toward the top surface 400a of the first lens pattern L1 and a second height H2 from the bottom surface 400b toward the top surface 400a of the second lens pattern L2, which are disposed to contact the first convex structure LC1.

[0131] The plurality of lens patterns 410 and the lens connectors 420 may form a plurality of recessed portions CP1 to CPn while contacting each other. For example, when the first lens pattern L1 and the first convex structure LC1 contact each other, the first recessed portion CP1 may be formed at a boundary between the first lens pattern L1 and the first convex structure LC1. Similarly, when the second lens pattern L2 and the first convex structure LC1 contact each other, the second recessed portion CP2 may be formed at a boundary between the second lens pattern L2 and the first convex structure LC1.

[0132] In a conventional case, since the lens connection part 420 is not provided, a concave portion is formed between the plurality of lens patterns. Therefore, the height difference between the height of the highest point of each of the plurality of lens patterns and the height of the concave portion formed between the plurality of lens patterns increases, and as a result, there is a problem of recognizing flicker due to the contrast difference between the light reflected at the highest point of each of the plurality of lens patterns and the light reflected at the concave portion. Specifically, referring to Figure 5 In an actual organic light-emitting display device, light reflected at the highest point of each of the multiple lens patterns is visually recognized as bright, so that the bright portion LP is visually recognized, and light reflected at the recessed portion disposed between the multiple lens patterns is visually recognized as dark, and the dark portion DP is visually recognized.

[0133] According to one embodiment of the present disclosure, since the lens connection part 420 is disposed between the plurality of lens patterns 410 , a height difference between the highest point of each of the plurality of lens patterns 410 and each of the plurality of recessed portions CP1 to CPn disposed between the plurality of lens patterns 410 and the lens connection part 420 is reduced.

[0134] Specifically, the first height difference ΔH1 from the first concave portion CP1 to the highest point of the first lens pattern L1 may be formed to be smaller than the first height H1 (which is the height from the bottom surface 400b of the light guide member 400 to the highest point of the first lens pattern L1), and the second height difference ΔH2 from the second concave portion CP2 to the highest point of the second lens pattern L2 may be formed to be smaller than the second height H2 (which is the height from the bottom surface 400b of the light guide member 400 to the highest point of the second lens pattern L2). By forming in this way, the height deviation of the light guide member 400 according to one embodiment of the present disclosure is reduced, so as to reduce the contrast difference of the reflected light depending on the height difference, so that flickering can be generated or minimized.

[0135] The lens connection part 420 may be formed of the same material as the plurality of lens patterns 410. Therefore, the lens connection part 420 may be configured to have the same refractive index as the plurality of lens patterns 410. Therefore, the lens connection part 420 may have the same first refractive index as the plurality of lens patterns 410.

[0136] The lens connection portion 420 may be configured to have a size smaller than that of the plurality of lens patterns 410. Specifically, each diameter of the plurality of convex structures LC1 to LCn of the lens connection portion 420 may be smaller than each diameter of the plurality of lens patterns 410 (see Figure 3BIn this case, the diameters DC1 to DCn of the plurality of convex structures LC1 to LCn may be defined as the distances between the plurality of adjacent concave portions CP1 to CPn. For example, the diameter DC1 of the first convex structure LC1 may be defined as the distance between the first concave portion CP1 disposed between the first lens pattern L1 and the first convex structure LC1 and the second concave portion CP2 disposed between the second lens pattern L2 and the first convex structure LC1. The diameter DC1 of the first convex structure LC1 may be smaller than the first diameter D1 of the first lens pattern L1 and the second diameter D2 of the second lens pattern L2.

[0137] Likewise, the diameter DC2 of the second convex structure LC2 may be defined as a distance between a third concave portion CP3 disposed between the first lens pattern L1 and the second convex structure LC2 and a fourth concave portion CP4 disposed between the third lens pattern L3 and the second convex structure LC2. The diameter DC2 of the second convex structure LC2 may be smaller than the first diameter D1 of the first lens pattern L1 and the third diameter D3 of the third lens pattern L3.

[0138] On the other hand, the curvature radius of each of the plurality of convex structures LC1 to LCo of the lens connection portion 420 may be greater than the curvature radius of each of the plurality of lens patterns L1 to Ln. For example, the curvature radius of any one of the plurality of convex structures may be greater than or equal to 10 μm and less than or equal to 90 μm. As described above, the lens connection portion 420 may be disposed between the plurality of lens patterns 410. Meanwhile, referring to FIG. 6A to FIG. 6D This is described in detail.

[0139] According to one embodiment of the present disclosure, the sum of the height (H1 to Hn) of each of the plurality of lens patterns L1 to Ln and the height of each of the plurality of recessed portions CP1 to CPn may be greater than or equal to 0.5 μm and less than or equal to 15 μm. When the sum of the height (H1 to Hn) of each of the plurality of lens patterns L1 to Ln and the height of each of the plurality of recessed portions CP1 to CPn is less than 0.5 μm, flicker is visually recognized due to diffraction and interference of wavelengths, or a mura pattern is visually recognized, and when the sum of the height (H1 to Hn) of each of the plurality of lens patterns L1 to Ln and the height of each of the plurality of recessed portions CP1 to CPn exceeds 15 μm, the height of each of the plurality of recessed portions CP1 to CPn is formed to increase, resulting in a problem of visually recognizing flicker. At the same time, the sum of the height (H1 to Hn) of each of the plurality of lens patterns L1 to Ln and the height of each of the plurality of recessed portions CP1 to CPn is preferably greater than or equal to 0.8 μm and less than or equal to 13 μm.

[0140] The filling layer 430 may be disposed on the plurality of lens patterns 410 and the lens connection portion 420, and may form the upper surface 400a of the light guide member 400. The filling layer 430 may be configured to cover the plurality of lens patterns 410 and the upper surface of the lens connection portion 420. The filling layer 430 may include a material having a second refractive index. In this case, the second refractive index of the filling layer 430 may be greater than the first refractive index of the plurality of lens patterns 410 and the lens connection portion 420. For example, the difference between the second refractive index and the first refractive index may be greater than or equal to 0.05 and less than or equal to 0.10.

[0141] When the difference between the first refractive index and the second refractive index is less than 0.05, flicker is visually recognizable and distortion occurs in the image, and when the difference between the first refractive index and the second refractive index exceeds 0.10, the material reliability between the multiple lens patterns 410, the lens connecting portion 420 and the filling layer 430 deteriorates, making it difficult to easily manufacture the light guide component 400.

[0142] According to one embodiment of the present disclosure, the light guide member 400 may include a plurality of lens patterns 410 and a lens connection portion 420 having a first refractive index and a filling layer 430 having a second refractive index, thereby eliminating or minimizing the phenomenon of visually recognizing that a mura pattern is formed due to reflection of external light from inside the display device.

[0143] Figure 4B is a partial cross-sectional view showing a portion of a light guide component according to an embodiment of the present disclosure. In this case, Figure 4B is along Figure 3A In addition to the configuration of the lens connection portion, Figure 4B Examples and Figure 4A The embodiments are the same, so the following will mainly describe different configurations.

[0144] like Figure 4B As shown, the light guide member 400 according to one embodiment of the present disclosure may include a plurality of lens patterns 410 , a lens connecting portion 420 , and a filling layer 430 .

[0145] The plurality of lens patterns 410 may include, for example, a fourth lens pattern L4 and a fifth lens pattern L5. According to one embodiment of the present disclosure, the fourth lens pattern L4 and the fifth lens pattern L5 may be arranged to be spaced apart from each other by a predetermined distance. Specifically, in the cross-sectional view, the third point P3 (where the outer periphery of the fourth lens pattern L4 intersects with the bottom surface 400b of the light guide member 400) and the fourth point P4 (where the outer periphery of the fifth lens pattern L5 intersects with the bottom surface 400b of the light guide member 400) may be spaced apart from each other, while the fourth point P5 may be spaced apart from each other. Figure 4A The situation is different.

[0146] The lens connection portion 420 may be disposed between the plurality of lens patterns 410. Specifically, the third convex structure LC3 of the lens connection portion 420 may be disposed between the fourth lens pattern L4 and the fifth lens pattern L5, in which case the third convex structure LC3 may contact a portion of a convex surface of the fourth lens pattern L4 and a portion of a convex surface of the fifth lens pattern L5.

[0147] According to one embodiment of the present disclosure, the third convex structure LC3 may be in contact with the bottom surface 400b of the light guide member 400. By forming in this manner, the third convex structure LC3 may be in contact with the boundary region (see Figure 3B In addition, the sum of the bottom surfaces of the fourth lens pattern L4, the fifth lens pattern L5, and the third convex structure LC3 may be the same as the bottom surface 400b of the light guide member 400.

[0148] Since the third convex structure LC3 is provided, a fifth concave portion CP5 may be provided between the third convex structure LC3 and the fourth lens pattern L4, and a sixth concave portion CP6 may be provided between the third convex structure LC3 and the fifth lens pattern L5.

[0149] According to one embodiment of the present disclosure, since the lens connecting portion 420 is disposed between a plurality of lens patterns 410, a height difference between the highest point of each of the plurality of lens patterns 410 and each of the plurality of recessed portions (CP5 and CP6) disposed between the plurality of lens patterns 410 and the lens connecting portion 420 can be reduced.

[0150] Specifically, since the third height difference ΔH3 from the fifth recessed portion CP5 to the highest point of the fourth lens pattern L4 is formed to be less than the fourth height H4 (which is the height from the bottom surface 400b of the light guide member 400 to the highest point of the fourth lens pattern L4), the height deviation of the light guide member 400 according to the embodiment of the present disclosure is reduced, and the contrast difference of the reflected light is reduced according to the height difference, thereby eliminating or minimizing the flicker. At the same time, the relationship between the sixth recessed portion CP6 and the fifth lens pattern L5 is the same as the relationship between the fifth recessed portion CP5 and the fourth lens pattern L4, so repeated description will be omitted.

[0151] Figure 4C is a partial cross-sectional view showing a portion of a light guide component according to an embodiment of the present disclosure. In this case, Figure 4C is along Figure 3A In addition to the configuration of the lens connection portion, Figure 4C Examples and Figure 4B The embodiments are the same, so the following will mainly describe different configurations.

[0152] like Figure 4C As shown, the plurality of lens patterns 410 according to one embodiment of the present disclosure may include a sixth lens pattern L6 and a seventh lens pattern L7, and the lens connection portion 420 may include a fourth convex structure LC4 and a fifth convex structure LC5 overlapping each other between the plurality of lens patterns 410. The fourth convex structure LC4 and the fifth convex structure LC5 may share an area OA with each other.

[0153] The fourth convex structure LC4 and the fifth convex structure LC5 may both contact the bottom surface 400b of the light guide member 400. By forming in this manner, the fourth convex structure LC4 and the fifth convex structure LC5 may contact the boundary region (see FIG. 1 ) disposed between the plurality of lens patterns 410. Figure 3B TA1 to TAm) overlap.

[0154] By disposing the fourth convex structure LC4 and the fifth convex structure LC5, a seventh concave portion CP7 may be disposed between the fourth convex structure LC4 and the sixth lenticular pattern L6, and an eighth concave portion CP8 may be disposed between the fifth convex structure LC5 and the seventh lenticular pattern L7.

[0155] According to one embodiment of the present disclosure, since the lens connecting portion 420 can be disposed between a plurality of lens patterns 410, the height difference between the height of the highest point of each of the plurality of lens patterns 410 and the height of each of the plurality of recessed portions CP7, CP8 disposed between the plurality of lens patterns 410 and the lens connecting portion 420 can be reduced.

[0156] Specifically, since the fourth height difference ΔH4 from the seventh recessed portion CP7 to the highest point of the sixth lens pattern L6 is formed to be less than the sixth height H6 (which is the height from the bottom surface 400b of the light guide member 400 to the highest point of the sixth lens pattern L6), the height deviation of the light guide member 400 according to the embodiment of the present disclosure is reduced, and thus the contrast difference of the reflected light is reduced according to the height difference, thereby eliminating or minimizing the flicker. At the same time, the relationship between the eighth recessed portion CP8 and the seventh lens pattern L7 is the same as the relationship between the seventh recessed portion CP7 and the sixth lens pattern L6, so its repeated description is omitted.

[0157] FIG. 6A to FIG. 6D is a cross-sectional view schematically illustrating a method of manufacturing a light guide member according to an embodiment of the present disclosure. Fig. 7A and Figure 7Bis a schematic diagram of a surface of a mold for forming a light guide member according to an embodiment of the present disclosure. In this case, Fig. 7A and Fig. 6A The surface of the mold shown is related to Figure 7B and Figure 6B The surfaces of the molds shown are related.

[0158] First, if Fig. 6A and Fig. 7A As shown, according to one embodiment of the present disclosure, the first pattern 700a may be formed by irradiating laser formed by the laser irradiation device 610 onto the surface of the mold 600 for forming the light guide member 400. In this case, the first pattern 700a may be formed to be recessed relative to the surface of the mold 600.

[0159] The first pattern 700a may include a plurality of first concave patterns Ca1 to Can, in which case each of the plurality of first concave patterns Ca1 to Can may be arranged in a circular shape on a plane. However, the shape of each of the plurality of concave patterns Ca1 to Can is not limited thereto and may be arranged in various shapes according to the technical level of the art.

[0160] The plurality of first concave patterns Ca1 to Can of the first pattern 700a may be irregularly arranged in an amorphous state. Meanwhile, according to one embodiment of the present disclosure, the plurality of first concave patterns Ca1 to Can of the first pattern 700a may correspond to a plurality of lens patterns (see Figure 3B L1 to Ln).

[0161] Meanwhile, although not shown in detail, the first pattern 700a may be formed by irradiating laser formed by the laser irradiation device 610 onto the surface of the mold 600 to form a predetermined pattern, and then etching the predetermined pattern using an etchant. In this case, the predetermined pattern may be formed to have a size smaller than that of the first pattern 700a.

[0162] Next, if Figure 6B and Figure 7B As shown, the second pattern 700b may be formed by ejecting a plurality of beads 625 on the surface of the mold 600 formed with the first pattern 700a. Specifically, the second pattern 700b may be formed by forming a plurality of second concave patterns Cb1 to Cbn on the first pattern 700a.

[0163] According to one embodiment of the present disclosure, the plurality of second recessed patterns Cb1 to Cbn may be irregularly disposed in a non-amorphous state. The size and shape of the plurality of beads 625 may be selected to be blown only to the boundary regions between the plurality of first recessed patterns Ca1 to Can of the first pattern 700a.

[0164] The plurality of beads 625 may have a circular shape, an oval shape, or a polygonal cross-section having a square or more than a square shape.

[0165] Each of the plurality of beads 625 may be selected to have a size greater than the size of each of the plurality of first recessed patterns Ca1 to Can of the first pattern 700a. For example, each of the plurality of beads 625 may have a size greater than or equal to 10 μm and less than or equal to 90 μm. In this case, when the bead 625 is circular, the size of the bead 625 may refer to the diameter, when the bead 625 is elliptical, the size of the bead 625 may refer to the minimum diameter, and when the surface of the bead is a polygon other than a curved surface, the size of the bead 625 may refer to the maximum distance from one surface to another.

[0166] According to one embodiment of the present disclosure, since the size of each of the multiple beads 625 is larger than the size of each of the multiple first recessed patterns Ca1 to Can of the first pattern 700a, the multiple beads 625 can be blown only at the boundaries of the multiple first recessed patterns of the first pattern 700a, and the multiple beads 625 will not be blown into each of the multiple first recessed patterns Ca1 to Can.

[0167] Therefore, if Figure 7B As shown, a plurality of second concave patterns Cb1 to Cbn may be formed at the boundaries of the plurality of first concave patterns of the first pattern 700a. Therefore, the curvature radius of each of the plurality of second concave patterns Cb1 to Cbn formed by the plurality of beads 625 may be formed to be greater than the curvature radius of each of the plurality of first concave patterns Ca1 to Can.

[0168] The plurality of beads 625 may include any one of SiO 2 , Al 2 O 3 , Na 2 O, MgO, CaO, K 2 O, and TiO 2 . Since the plurality of beads 625 include the above materials, the plurality of beads 625 are not broken even when colliding with the mold 600 during the sandblasting process.

[0169] The second pattern 700b formed in the mold 600 by the sandblasting process may correspond to the Figure 3A The multiple lens patterns of the embodiment (see Figure 3A 410) and the lens connection portion (see Figure 3A of 420).

[0170] Next, if Figure 6CAs shown, a plurality of lens patterns 410 and a lens connecting portion 420 of a light guide member 400 according to an embodiment of the present disclosure may be formed using a mold 600. In this case, the mold 600 may be provided in a cylindrical shape, and each time the mold 600 rotates on the material, the same pattern may be formed on the material for forming the plurality of lens patterns 410 and the lens connecting portion 420. Meanwhile, the shape of the mold 600 is not limited to a cylindrical shape, and may be provided in a plate shape and pressed on a lens forming material, thereby forming a plurality of lens patterns 410 and a lens connecting portion 420.

[0171] According to one embodiment of the present disclosure, the plurality of first recessed patterns Ca1 to Can of the second pattern 700b may correspond to the plurality of lens patterns 410 according to one embodiment of the present disclosure, and the plurality of second recessed patterns Cb1 to Cbn of the second pattern 700b may correspond to the lens connector 420 according to one embodiment of the present disclosure.

[0172] Finally, if Fig.6D As shown, the light guide member 400 according to one embodiment of the present disclosure may be manufactured by applying a filling layer 430 having a refractive index greater than that of the plurality of lens patterns 410 and the lens connector 420 formed using the mold 600 .

[0173] FIG. 8A to FIG. 8D is a partial cross-sectional view schematically showing a method for manufacturing a light guide component according to an embodiment of the present disclosure. In this case, Fig. 8A and Figure 8B Along Fig. 7A and Figure 7B A partial cross section taken along line VV′ shown in FIG. Figure 8C and Fig.8D is along Figure 3A A partial cross section taken along line II-II′ is shown in FIG.

[0174] First, if Fig. 8A As shown, the surface of the mold 600 may be patterned by the laser irradiation device 610 to form the first pattern 700a. In this case, the first pattern 700a may include a plurality of first concave patterns Ca1 to Ca3. The plurality of first concave patterns Ca1 to Ca3 may be irregularly arranged in an amorphous state.

[0175] A plurality of end portions TP may be disposed between the plurality of first recessed patterns Ca1 to Ca3 .

[0176] Next, if Figure 8B As shown, the second pattern 700b may be formed by sandblasting the mold 600 on which the first pattern 700a is formed.

[0177] According to one embodiment of the present disclosure, in the sandblasting process, by using beads 625 each having a size larger than that of each of the plurality of first recessed patterns Ca1 to Ca3, an end portion TP disposed between the plurality of first recessed patterns Ca1 to Ca3 may be removed so as to form a second pattern 700b including a plurality of second recessed patterns Cb1 to Cb2.

[0178] Next, if Figure 8C As shown, using the mold 600 in which the second pattern 700b is formed, a plurality of lens patterns 410 and a lens connection portion 420 according to an embodiment of the present disclosure may be formed. The plurality of first concave patterns Ca1 to Ca3 of the second pattern 700b may correspond to the plurality of lens patterns 410, and the plurality of second concave patterns Cb1 to Cb2 of the second pattern 700b may correspond to the lens connection portion 420.

[0179] In this case, the plurality of lens patterns 410 and the lens connecting portion 420 may be connected with the lens according to Figure 4A The multiple lens patterns and lens connecting parts of the embodiment correspond to each other.

[0180] Finally, if Fig.8D As shown, by forming a filling layer 430 on a plurality of lens patterns 410 and a lens connecting portion 420 , a light guide member 400 according to an embodiment of the present disclosure may be formed.

[0181] 9A to 9D is a partial cross-sectional view schematically showing a method for manufacturing a light guide component according to an embodiment of the present disclosure. In this case, Fig.9A and Fig. 9B Along Fig. 7A and Figure 7B The local cross section taken along line VI-VI′ in Fig. 9C and Fig.9D is along Figure 3A A partial cross section taken along line III-III′ in FIG.

[0182] First, if Fig.9A As shown, the surface of the mold 600 may be patterned by the laser irradiation device 610 to form a first pattern 700a. In this case, the first pattern 700a may include a plurality of first concave patterns Ca4 to Ca5. In this case, the plurality of first concave patterns Ca4 to Ca5 may be irregularly arranged in an irregular state.

[0183] The plurality of first recessed patterns Ca4 to Ca5 may not intersect with each other. Specifically, the plurality of first recessed patterns Ca4 to Ca5 may be formed to be spaced apart from each other by the end portions TP disposed between the plurality of first recessed patterns Ca4 to Ca5.

[0184] Next, if Fig. 9B As shown, the second pattern 700b may be formed by sandblasting the mold 600 on which the first pattern 700a is formed.

[0185] According to one embodiment of the present disclosure, by using a plurality of beads 625 each having a size larger than that of each of the plurality of first recessed patterns Ca4 to Ca5 in a sandblasting process, an end portion TP disposed between the plurality of first recessed patterns Ca4 to Ca5 can be removed so as to form a second pattern 700b including a plurality of second recessed patterns Cb3.

[0186] Next, if Fig. 9C As shown, using the mold 600 in which the second pattern 700b is formed, a plurality of lens patterns 410 and a lens connection portion 420 according to an embodiment of the present disclosure may be formed. The plurality of first concave patterns Ca4 to Ca5 of the second pattern 700b may correspond to the plurality of lens patterns 410, and the plurality of second concave patterns Cb3 of the second pattern 700b may correspond to the lens connection portion 420.

[0187] In this case, the plurality of lens patterns 410 and the lens connecting portion 420 may be configured according to Figure 4B The multiple lens patterns and lens connecting parts of the embodiment correspond to each other.

[0188] Finally, if Fig.9D As shown, by forming a filling layer 430 on a plurality of lens patterns 410 and a lens connecting portion 420 , a light guide member 400 according to an embodiment of the present disclosure may be formed.

[0189] FIG. 10A to FIG. 10D is a partial cross-sectional view schematically showing a method for manufacturing a light guide component according to an embodiment of the present disclosure. In this case, Fig. 10A and Fig. 10B Along Fig. 7A and Figure 7B The partial cross section taken along line VII-VII′ in Fig. 10C and Fig. 10D is along Figure 3A A partial cross section taken along line IV-IV′.

[0190] First, if Fig. 10A As shown, the surface of the mold 600 may be patterned by the laser irradiation device 610 to form a first pattern 700a. In this case, the first pattern 700a may include a plurality of first concave patterns Ca6 to Ca7. In this case, the plurality of first concave patterns Ca6 to Ca7 may be irregularly arranged in an irregular state.

[0191] The plurality of first recessed patterns Ca6 to Ca7 may not intersect each other. Specifically, the plurality of first recessed patterns Ca4 to Ca5 may be formed by the end portion TP ( Fig. 10A In this case, some areas of the plurality of terminal portions TP may overlap with each other.

[0192] Next, if Fig. 10B As shown, the second pattern 700b may be formed by sandblasting the mold 600 on which the first pattern 700a is formed.

[0193] According to one embodiment of the present disclosure, by using a plurality of beads 625 each having a size larger than that of each of the plurality of first recessed patterns Ca6 to Ca7 in a sandblasting process, an end portion TP disposed between the plurality of first recessed patterns Ca6 to Ca7 may be removed so as to form a second pattern 700b including a plurality of second recessed patterns Cb4 to Cb5. Meanwhile, the plurality of second recessed patterns Cb4 to Cb5 may be formed by causing different beads 625 to collide twice in an area disposed between the plurality of first recessed patterns Ca6 to Ca7. Meanwhile, the plurality of second recessed patterns Cb4 to Cb5 are not limited thereto and may be formed by causing beads to collide twice or more.

[0194] Next, if Fig. 10C As shown, a plurality of lens patterns 410 and a lens connection portion 420 according to an embodiment of the present disclosure may be formed using a mold 600 in which a second pattern 700b is formed. A plurality of first recessed patterns Ca6 to Ca7 of the second pattern 700b may correspond to the plurality of lens patterns 410, and a plurality of second recessed patterns Cb4 to Cb5 of the second pattern 700b may correspond to the lens connection portion 420.

[0195] In this case, the plurality of lens patterns 410 and the lens connecting portion 420 may be configured according to Figure 4C The multiple lens patterns and lens connecting parts of the embodiment correspond to each other.

[0196] Finally, if Fig. 10D As shown, by forming a filling layer 430 on a plurality of lens patterns 410 and a lens connecting portion 420 , a light guide member 400 according to an embodiment of the present disclosure may be formed.

[0197] Fig.11 is a cross-sectional view of a light guide member according to another embodiment of the present disclosure.

[0198] like Fig.11As shown, a light guide member 800 according to another embodiment of the present disclosure includes a plurality of lens patterns 810 and a filling layer 830. The filling layer 830 may form a top surface 800a of the light guide member 800.

[0199] The plurality of lens patterns 810 include a base portion 811 and a pattern portion 813 .

[0200] The base portion 811 may form a bottom surface 800 b of the light guide member 800 , the bottom surface 800 b being opposite to the top surface 800 a .

[0201] The base portion 811 may include an acrylic-based material. For example, the base portion 811 may be acrylic resin, but is not limited thereto. The base portion 811 may have a first refractive index, and the first refractive index may be, for example, greater than 0 and less than or equal to 2.

[0202] The material constituting the base portion 811 can be cured by light having a wavelength in any one of the ultraviolet wavelength band region and the visible light wavelength band region, for example. Specifically, the material constituting the base portion 811 can be cured by light having a wavelength of, for example, 200 nm or more and 1000 nm or less. Specifically, the material constituting the pattern portion 813 can be a material that can be cured by the wavelength of light emitted from a xenon lamp, but is not limited thereto.

[0203] The seating portion 811 may include a recessed surface recessed with respect to the bottom surface 800 b of the light guide member 800 .

[0204] The pattern part 813 may be disposed on the base part 811. The pattern part 813 may be disposed to cover the top surface of the base part 811. Therefore, the pattern part 813 may be disposed to cover the concave surface of the base part 811.

[0205] The pattern part 813 may include a first convex surface 813 a adjacent to the top surface 800 a and a second convex surface 813 b adjacent to the bottom surface 800 b .

[0206] The first convex surface 813a and the second convex surface 813b may be arranged to correspond to each other and to form convex structures relative to different surfaces. For example, the first convex surface 813a is formed as a convex structure relative to the bottom surface 800b of the light guide member 800, and the second convex surface 813b is formed as a convex structure relative to the top surface 800a of the light guide member 800. The second convex surface 813b of the pattern portion 813 may be arranged to correspond to the concave top surface of the base portion 811.

[0207] According to another embodiment of the present disclosure, by the first convex surface 813a of the pattern portion 813, external light introduced from the top surface 800a of the light guide member 800 can be prevented from being reflected by the plurality of wires and electrodes included in the circuit element layer (which is disposed below the bottom surface 800b of the light guide member 800), and even if the external light is reflected by the plurality of wires and electrodes and introduced back to the bottom surface 800b of the light guide member, the introduced external light can be refracted by the pattern portion 813 of the light guide member 800 and guided toward the side surface of the display device. Therefore, according to another embodiment of the present disclosure, the degree of reflection of the external light introduced into the display device can be suppressed, and the visibility of the user can be improved. In addition, the black visibility of the user can be improved.

[0208] The pattern part 813 may include a material having a first refractive index. The pattern part 813 may include a material having the same refractive index as the base part 811. The first refractive index may be, for example, greater than 0 and less than or equal to 2, but the first refractive index of the material constituting the pattern part 813 is not limited thereto.

[0209] Since the base portion 811 and the pattern portion 813 include materials having the same refractive index, even if external light or light reflected by a thin film transistor, wiring, and electrode disposed below the bottom surface 800b of the light guide member 800 passes through a boundary surface (e.g., the second convex surface 813b) between the base portion 811 and the pattern portion 813, the light is not refracted. Therefore, the visibility improvement effect of the light guide member 800 can be prevented from being reduced by the second convex surface 813b convex relative to the top surface 800a of the light guide member 800.

[0210] According to one embodiment of the present disclosure, the pattern portion 813 may include a material that can be sintered by light having a specific wavelength band. The pattern portion 813 may include, for example, metal oxides and silicon oxide (SiO2), but is not limited thereto. When the pattern portion 813 includes a metal oxide, the pattern portion 813 may be formed of, for example, zinc oxide (ZnO), aluminum oxide (Al2O3), magnesium oxide (MgO), and tin oxide (SnO2). The material constituting the pattern portion 813 may be sintered by, for example, light having any one of an ultraviolet wavelength band region and a visible wavelength band region. Specifically, the material constituting the pattern portion 813 may be sintered by, for example, light having a wavelength of 200nm to 1000nm. Specifically, the material constituting the pattern portion 813 may be, for example, a material that can be sintered by light having a wavelength emitted from a xenon lamp, but is not limited thereto.

[0211] The pattern part 813 may include a plurality of lens structures La1 to Lan.

[0212] Some of the multiple lens structures La1 to Lan are formed continuously with each other. For example, the first lens structure La1 and the second lens structure La2 may share a predetermined area with each other. Alternatively, the first lens structure La1 and the second lens structure La2 may be arranged to overlap with each other. For example, the second lens structure La2 and the third lens structure La3 may contact each other at one point, but is not limited thereto. Any two adjacent lens structures of the multiple lens structures La1 to Lan may be spaced apart from each other. For example, the third lens structure La3 and the fourth lens structure La4 may be formed to be spaced apart from each other by a predetermined distance without overlapping or contacting each other.

[0213] In the plurality of lens structures La1 to Lan, two adjacent lens structures may overlap, contact, or be spaced apart from each other. As described above, the manner in which two adjacent lens structures in the plurality of lens structures La1 to Lan are formed differently may be defined as the plurality of lens structures La1 to Lan being arranged irregularly. According to one embodiment of the present disclosure, since the plurality of lens structures La1 to Lan are arranged irregularly, the occurrence of mura patterns, for example, rainbow mura or ring mura, may be prevented.

[0214] When two adjacent lens structures among the plurality of lens structures La1 to Lan overlap each other, the two adjacent lens structures among the plurality of lens structures La1 to Lan may include a lens overlap portion LOa, which is an area formed by overlapping each other. For example, the first lens structure La1 and the second lens structure La2 are formed to overlap each other, so that a lens overlap portion LOa may be formed between the first lens structure La1 and the second lens structure La2. According to one embodiment of the present disclosure, since the first lens structure La1 and the second lens structure La2 are formed to overlap each other, a concave first point P1′ may be formed between the peak points of each of the first lens structure La1 and the second lens structure La2 in the area of ​​the first convex surface 813a in which the lens overlap portion LOa is formed, relative to the bottom surface 800b of the light guide member 800. In this case, a first height difference ΔH1′ may be formed in the vertical direction between any one of the peak points of each of the first lens structure La1 and the second lens structure La2 and the first point P1′. According to one embodiment of the present disclosure, compared with the case where the lens overlapping portion LOa does not exist, the first height difference ΔH1′ is relatively smaller due to the lens overlapping portion LOa, and therefore the height between the peak point of each of the continuously arranged first lens structure La1 and the second lens structure La2 and the first point P1′ is relatively reduced, thereby realizing a display device that suppresses or eliminates the generation of flicker.

[0215] At least two lens structures among the multiple lens structures La1 to Lan may have the same length in the horizontal direction and / or the same length in the vertical direction. For example, the third lens structure La3 may have a first short axis length A1′ in the vertical direction, and may have a first long axis length A2′ in the horizontal direction. In this case, the vertical direction may be the direction along which the top surface 800a and the bottom surface 800b of the light guide member 800 face each other, and the horizontal direction may be a direction perpendicular to the vertical direction. In this case, the first long axis length A2′ may be set to be greater than the first short axis length A1′. In addition, the first short axis length A1′ may refer to the shortest distance between the highest point and the lowest point of any one of the multiple lens structures La1 to Lan, and the first long axis length A2′ may refer to the shortest distance between the left end and the right end of any one of the multiple lens structures La1 to Lan.

[0216] According to one embodiment of the present disclosure, each of the first lens structure La1, the second lens structure La2, the third lens structure La3 and the fourth lens structure La4 may have the same first short axis length A1′ in the vertical direction, but the present disclosure is not limited thereto, and any one of the multiple lens structures La1 to Lan may have a length different from the first short axis length A1′ in the vertical direction.

[0217] According to one embodiment of the present disclosure, two or more lens structures among the plurality of lens structures La1 to Lan may have the same shape. Specifically, two or more lens structures among the plurality of lens structures La1 to Lan may have an elliptical shape. For example, the first lens structure La1 and the second lens structure La2 may have the same elliptical shape. However, since the first lens structure La1 and the second lens structure La2 are arranged to overlap each other, the first lens structure La1 and the second lens structure La2 share a lens overlapping portion LOa. For example, the second lens structure La2 and the third lens structure La3 may have the same elliptical shape, but are not limited thereto, and any one of the lens structures La1 to Lan may have a shape other than an elliptical shape, such as a spherical shape.

[0218] The filling layer 830 may be disposed on the plurality of lens patterns 810 and may form a top surface 800a of the light guide member 800. The filling layer 830 may be configured to surround the top surface of the plurality of lens patterns 810. In detail, the filling layer 830 may include a material having a second refractive index. In this case, the second refractive index of the filling layer 830 may be greater than the first refractive index of the plurality of lens patterns 810. For example, the difference between the second refractive index and the first refractive index may be greater than or equal to 0.05 and less than or equal to 0.10.

[0219] When the difference between the first refractive index and the second refractive index is less than 0.05, flicker is visually recognizable and distortion occurs in the image, and when the difference between the first refractive index and the second refractive index exceeds 0.10, the material reliability between the multiple lens patterns 810 and the filling layer 830 may be reduced, making it difficult to easily manufacture the light guide member 800.

[0220] Figures 12A to 12C is a cross-sectional view schematically illustrating a method for manufacturing a light guide member according to another embodiment of the present disclosure. Specifically, FIG. 12A to FIG. 12C The cross-sectional view of Fig.11 The present invention is related to the embodiments of the present invention, and the same figure numerals are assigned to the same configurations, and a repeated description thereof will be omitted or may be briefly provided.

[0221] First, if Fig. 12A As shown, the resin composition 815 may be applied to the carrier film CF. Specifically, the resin composition 815 may be applied to one surface of the carrier film CF, for example, the top surface of the carrier film CF.

[0222] The resin component 815 may be a flowable material having a viscosity equal to or higher than a predetermined level. Therefore, even when the resin component 815 is applied to one surface of the carrier film CF, the resin component 815 does not detach from the carrier film CF.

[0223] The resin composition 815 includes a curable material 815a and a sintering material 815b. Specifically, the sintering material 815b is dispersed in the curable material 815a or on its surface. Since the resin composition 815 includes the curable material 815a and the sintering material 815b dispersed in the curable material 815a or on its surface, when the resin composition 815 is applied to the carrier film CF, the sintering material 815b dispersed in the resin composition 815 may be arranged irregularly.

[0224] The curable material 815a may include a photocurable material. However, the present disclosure is not limited thereto. The curable material 815a may include a material that is cured by light, for example, in a visible light wavelength band region or an ultraviolet wavelength band region. Specifically, the curable material 815a may be cured by light having a wavelength, for example, greater than or equal to 200 nm and less than or equal to 1000 nm. The curable material 815a may be, for example, an acrylic resin, but is not limited thereto. The curable material 815a may be cured by, for example, a xenon lamp.

[0225] The sintering material 815b may be dispersed in the curable material 815a. The sintering material 815b may be sintered by light irradiation, but is not limited thereto.

[0226] The sintered material 815b may be a spherical particle, but is not limited thereto, or the sintered material 815b may be an elliptical particle. When the sintered material 815b is a spherical particle, the sintered material 815b may have a diameter greater than 0 and less than or equal to 90 μm. Alternatively, when the sintered material 815b is an elliptical particle, the sintered material 815b may have a major axis diameter greater than or equal to 0 and less than or equal to 90 μm. The sintered material 815b may be, for example, a plurality of spherical particles or elliptical particles having the same size.

[0227] The sintering material 815b can be sintered by light in the visible light wavelength band or ultraviolet light wavelength band. Specifically, the sintering material 815b can be sintered by light with a wavelength of, for example, 200 nm or more and 1000 nm or less. The sintering material 815b can be sintered by, for example, a xenon lamp.

[0228] The sintering material 815b may include a material sintered by light in a visible light wavelength band region or an ultraviolet light wavelength band region. For example, the sintering material 815b may include a metal oxide or silicon oxide (SiO2), but is not limited thereto. When a metal oxide is used as the sintering material 815b, the sintering material 815b may include, for example, at least one of zinc oxide (ZnO), aluminum oxide (Al2O3), magnesium oxide (MgO), and tin oxide (SnO2).

[0229] Next, if Fig. 12B As shown, light L′ having a predetermined wavelength band may be irradiated onto the resin composition 815 by using the light irradiation part LIP. In this case, the resin composition 815 may be cured to form a plurality of lens patterns 810.

[0230] The light L′ irradiated onto the resin composition 815 may be light having a wavelength band for converting the curable material 815 a and the sintering material 815 b contained in the resin composition 815 .

[0231] The light L' may be, for example, light in the ultraviolet wavelength band and the visible light wavelength band. Specifically, the light L' may be light having a wavelength of, for example, 200 nm or more and 1000 nm or less. The light L' may be, for example, light generated from a xenon (Xe) lamp. The intensity of the light L' may be greater than or equal to 500 mJ / cm 2 And less than 1000mJ / cm 2 In this case, the intensity of the light L′ may be the total energy intensity required to form the resin component 815 in the plurality of lens patterns 810. When the intensity of the light L′ is less than 500 mJ / cm 2 When the curable material 815a is not sufficiently cured or the sintered material 815b is not sufficiently sintered, the first convex surface for removing the mura pattern may not be formed (see Fig.11 813a); and when the intensity of light L′ exceeds 1000mJ / cm 2 When the curable material 815a is partially damaged, the refractive index may change, and the sintered material 815b may be over-sintered, causing the first protrusion surface (see Fig.11 813a) in the figure becomes flat, and ultimately the mura pattern may not be reduced or removed.

[0232] According to another embodiment of the present disclosure, when the light L' generated by the light irradiation part LIP is irradiated onto the resin component 815, the curable material 815a in the resin component 815 can be cured by the light L', and the sintered material 815b can be sintered by the light L' relative to each other. In this case, in the case where the sintered material 815b is a spherical particle, the sintered material 815b may have a length in the vertical direction and a length in the horizontal direction, respectively. Specifically, the sintered material 815b may overlap with the adjacent sintered material 815b when being sintered, and the length of the sintered material 815b in the vertical direction may be shorter than the length in the horizontal direction. However, the present disclosure is not limited thereto.

[0233] As the curable material 815a is cured and the sintered material 815b is sintered, the curable material 815a may become the base portion 811 and the sintered material 815b may become the pattern portion 813. Therefore, the resin composition 815 may form a plurality of lens patterns 810 according to another embodiment of the present disclosure by the light L' irradiated from the light irradiation part LIP.

[0234] Finally, if Fig. 12C As shown, when a filling layer 830 is applied on the plurality of lens patterns 810 and the carrier film CF disposed under the plurality of lens patterns 810 is removed, a light guide member 800 according to another embodiment of the present disclosure may be implemented. When the light guide member 800 is manufactured according to another embodiment of the present disclosure, since the plurality of lens patterns 810 are formed using a resin composition 815 in which a curable material 815a and a sintering material 815b are mixed, the manufacturing time of the light guide member 800 may be shortened.

[0235] FIG. 13A to FIG. 13C is an example of a planar TEM photograph of a light guide member 800 according to another embodiment of the present disclosure. Specifically, Figures 13A to 13C A sintered material with a diameter of 20 μm is shown. For example, Fig.13A The intensity of the light formed in the light irradiation part is 500 mJ / cm 2 situation, Fig. 13B The intensity of the light formed in the light irradiation part is 750 mJ / cm 2 situation, Fig. 13CThe intensity of the light formed in the light irradiation part is 1000 mJ / cm 2 situation.

[0236] like FIG. 13A to FIG. 13C As shown, the sintered material (see Fig. 12A 815b) can be obtained by irradiating the component with light (see Fig. 12B In this case, the sintered materials overlapped by sintering (see Fig. 12A 815b) can form the pattern portion 813 of the light guide member 800 according to another embodiment of the present disclosure. The light used to form the pattern portion 813 (see Fig. 12B The energy intensity of L' in can be adjusted in various ways. In this case, as the light (see Fig. 12B The increase in energy intensity of L′ in FIG. 8 is used to form the sintered material of the pattern portion 813 (see Fig. 12A 815b) in can be further sintered. FIG. 13A to FIG. 13C As shown in the embodiment of Fig. 12B The increase in strength of the sintered material (see Fig. 12A The degree of sintering of the pattern portion 815b) increases, and therefore, the roughness Ra of the pattern portion 813 can be reduced to 1.770 μm, 1.273 μm and 1.053 μm, respectively. Therefore, it can be confirmed that the light irradiation component (see Fig. 12B LIP) light (see Fig. 12B The roughness Ra of the pattern portion 813 is adjusted by adjusting the strength of L′ in the pattern portion 813.

[0237] Fig.14A and Fig. 14B is an example of a planar TEM photograph of a light guide member 800 according to another embodiment of the present disclosure. In this case, Fig.14A and Fig. 14B A sintered material with a diameter of 35 μm is shown. Specifically, Fig.14A The light irradiated components (see Fig. 12B light formed by LIP in Fig. 12B The intensity of L' in the experiment is 500mJ / cm 2 situation, Fig. 14B The light irradiated components (see Fig. 12B light formed by LIP in Fig. 12B The intensity of L') is 750mJ / cm 2 situation.

[0238] like Fig.14A and Fig. 14B As shown, the sintered material (see Fig. 12A 815b) can be obtained by irradiating the light component (see Fig. 12B In this case, the overlapping sintered materials (see Fig. 12A 815b) can form the pattern portion 813 of the light guide member 800 according to another embodiment of the present disclosure. The light used to form the pattern portion 813 (see Fig. 12B The energy intensity of L' in the Fig. 12B The increase in energy intensity of L′ in FIG. 8 is used to form the sintered material of the pattern portion 813 (see Fig. 12A 815b) in can be further sintered. Fig.14A and Fig. 14B As shown in the embodiment of Fig. 12B The increase in strength of the sintered material (see Fig. 12A The degree of sintering of 815b) in the pattern part 813 is increased, so the roughness Ra of the pattern part 813 can be reduced to 2.717μm and 2.368μm respectively. FIG. 13A to FIG. 13C , it can be seen that the roughness Ra of the pattern 813 according to another embodiment of the present disclosure can be adjusted by different sintering materials (see Fig. 12A 815b) to adjust the size.

[0239] Fig.15 is a cross-sectional view of a light guide member according to another embodiment of the present disclosure.

[0240] like Fig.15 As shown, a light guide member 900 according to another embodiment of the present disclosure includes a plurality of lens patterns 910 and a filling layer 930. The filling layer 930 may form a top surface 900a of the light guide member 900.

[0241] The plurality of lens patterns 910 include a base portion 911 and a pattern portion 913 .

[0242] The base portion 911 may form a bottom surface 900 b of the light guide member 900 , which is opposite to the top surface 900 a .

[0243] The base portion 911 may include an acrylic-based material. For example, the base portion 911 may be an acrylic resin, but is not limited thereto. The base portion 911 may have a first refractive index, which may be greater than 0 and less than or equal to 2, for example.

[0244] The material constituting the base portion 911 can be cured by, for example, light having a wavelength in any one of an ultraviolet wavelength band region and a visible light wavelength band region. Specifically, the material constituting the base portion 911 can be cured by, for example, light having a wavelength greater than or equal to 200 nm and less than or equal to 1000 nm. Specifically, the material constituting the pattern portion 913 can be a material that can be cured by the wavelength of light emitted from a xenon lamp, but is not limited thereto.

[0245] The seating portion 911 may include a recessed surface recessed with respect to the bottom surface 900 b of the light guide member 900 .

[0246] The pattern part 913 may be disposed on the base part 911. The pattern part 913 may be disposed to cover the top surface of the base part 911. Therefore, the pattern part 913 may be disposed to cover the concave surface of the base part 911.

[0247] The pattern part 913 may include a first convex surface 913 a adjacent to the top surface 900 a and a second convex surface 913 b adjacent to the bottom surface 900 b .

[0248] The first convex surface 913a and the second convex surface 913b may be arranged to correspond to each other and formed as convex structures relative to different surfaces. For example, the first convex surface 913a is formed as a convex structure relative to the bottom surface 900b of the light guide member 900, and the second convex surface 913b is formed as a convex structure relative to the top surface 900a of the light guide member 900. The second convex surface 913b of the pattern part 913 may be arranged to correspond to the concave top surface of the base part 911.

[0249] According to another embodiment of the present disclosure, the external light introduced from the top surface 900a of the light guide member 900 can be prevented from being reflected by the plurality of wires and electrodes included in the circuit element layer (which is disposed below the bottom surface 900b of the light guide member 900) by the first convex surface 913a of the pattern portion 913, and even if the external light is reflected by the plurality of wires and electrodes and introduced back to the bottom surface 900b of the light guide member, the introduced external light can be refracted by the pattern portion 913 of the light guide member 900 and guided toward the side surface of the display device. Therefore, according to another embodiment of the present disclosure, the degree of reflection of the external light introduced into the display device can be suppressed, and the visibility of the user can be improved. In addition, the black visibility of the user can be improved.

[0250] The pattern part 913 may include a material having a first refractive index. The pattern part 913 may include a material having the same refractive index as the base part 911. The first refractive index may be greater than 0 and less than or equal to 2, for example, but the first refractive index of the material constituting the pattern part 913 is not limited thereto.

[0251] Since the base portion 911 and the pattern portion 913 include materials having the same refractive index, even if external light or light reflected by thin film transistors, wirings, and electrodes disposed below the lower surface 900b of the light guide member 900 passes through a boundary surface (e.g., the second convex surface 913b) between the base portion 911 and the pattern portion 913, the light is not refracted. Therefore, the visibility improvement effect of the light guide member 900 can be prevented from being reduced by the second convex surface 913b convex relative to the top surface 900a of the light guide member 900.

[0252] According to one embodiment of the present disclosure, the pattern portion 913 may include a material that can be sintered by light having a specific wavelength band. The pattern portion 913 may include, for example, metal oxides and silicon oxide (SiO2), but is not limited thereto. When the pattern portion 913 includes a metal oxide, the pattern portion 913 may be formed of, for example, zinc oxide (ZnO), aluminum oxide (Al2O3), magnesium oxide (MgO), and tin oxide (SnO2). The material constituting the pattern portion 913 may be sintered by light of, for example, any one of an ultraviolet wavelength band region and a visible light wavelength band region. Specifically, the material constituting the pattern portion 913 may be a material that can be sintered by light having a wavelength of 200nm to 1000nm. Specifically, the material constituting the pattern portion 913 may be, for example, a material that can be sintered by light of a wavelength emitted from a xenon lamp, but is not limited thereto.

[0253] The pattern part 913 may include a plurality of lens structures Lb1 to Lbn.

[0254] Some of the multiple lens structures Lb1 to Lbn are formed continuously with each other. For example, the first lens structure Lb1 and the second lens structure Lb2 may share a predetermined area with each other. Alternatively, the first lens structure Lb1 and the second lens structure Lb2, the second lens structure Lb2 and the third lens structure Lb3, and the third lens structure Lb3 and the fourth lens structure Lb4 may be arranged to overlap with each other. At the same time, although not shown, any two adjacent lens structures of the multiple lens structures Lb1 to Lbn may contact each other at one point, and any two adjacent lens structures of the multiple lens structures Lb1 to Lbn may be spaced apart from each other.

[0255] Adjacent lens structures among the multiple lens structures Lb1 to Lbn may overlap with each other, contact with each other, be spaced apart from each other, or may be arranged at different heights. In this case, the different heights may be defined as the shortest distance from the bottom surface 900b of the light guide member 900 to the lowest end of the lens structures adjacent to each other. As described above, the manner in which two adjacent lens structures among the multiple lens structures Lb1 to Lbn are differently arranged may be defined as the multiple lens structures Lb1 to Lbn being irregularly arranged. According to one embodiment of the present disclosure, since the multiple lens structures Lb1 to Lbn are irregularly arranged, the occurrence of mura patterns such as rainbow mura or ring mura can be prevented.

[0256] When two adjacent lens structures among the plurality of lens structures Lb1 to Lbn overlap each other, the two adjacent lens structures among the plurality of lens structures Lb1 to Lbn may include a lens overlapping portion LOb, which is a region formed by overlapping each other. For example, the first lens structure Lb1 and the second lens structure Lb2 are formed to overlap each other, so that a lens overlapping portion LOb can be formed between the first lens structure Lb1 and the second lens structure Lb2. For example, the second lens structure Lb2 and the third lens structure Lb3 are formed to overlap each other, so that a lens overlapping portion LOb can be formed between the second lens structure Lb2 and the third lens structure Lb3. For example, the third lens structure Lb3 and the fourth lens structure Lb4 are formed to overlap each other, so that a lens overlapping portion LOb can be formed between the third lens structure Lb3 and the fourth lens structure Lb4. However, the present disclosure is not limited thereto.

[0257] At the same time, any one of the multiple lens structures Lb1 to Lbn can be used to connect two adjacent lens structures to each other. According to one embodiment of the present disclosure, any one of the lens structures arranged continuously can play the same role as the lens connecting portion arranged in the light guide component 400 according to one embodiment of the present disclosure. Therefore, any one of the lens structures Lb1 to Lbn that plays the role of the lens connecting portion can connect two adjacent lens structures so as to reduce the height difference between the lowest point of the continuously arranged lens structures with different sizes and the recessed portion arranged between them, thereby suppressing or eliminating the occurrence of flicker.

[0258] For example, the second lens structure Lb2 may be disposed on one side of the first lens structure Lb1, for example, on the right side, and the second lens structure Lb2 and the first lens structure Lb1 may be disposed continuously while sharing the lens overlap portion LOb. The second lens structure Lb2 may be disposed on one side of the third lens structure Lb3, for example, on the left side, and the second lens structure Lb2 and the third lens structure Lb3 may be disposed continuously while sharing the lens overlap portion LOb. In this case, the second lens structure Lb2 may be a lens connection portion connecting the first lens structure Lb1 and the third lens structure Lb3. For example, the third lens structure Lb3 may be disposed on one side of the second lens structure Lb2, for example, on the right side, and the third lens structure Lb3 and the second lens structure Lb2 may be disposed continuously while sharing the lens overlap portion LOb. The third lens structure Lb3 may be disposed on one side of the fourth lens structure Lb4, for example, on the left side, and the third lens structure Lb3 and the fourth lens structure Lb4 may be disposed continuously while sharing the lens overlap portion LOb. In this case, the third lens structure Lb3 may be a lens connection portion connecting the second lens structure Lb2 and the fourth lens structure Lb4.

[0259] According to one embodiment of the present disclosure, since the first lens structure Lb1 and the second lens structure Lb2 are formed to overlap each other, in the region of the first convex surface 913a where the lens overlapping portion LOb is formed, a second point P2′ that is recessed relative to the bottom surface 900b of the light guide member 900 may be formed between the peaks of each of the first lens structure Lb1 and the second lens structure Lb2. In this case, a second height difference ΔH2′ may be formed in the vertical direction between the second point P2′ and any one of the peaks of any one of the first lens structure Lb1 and the second lens structure Lb2. According to one embodiment of the present disclosure, since the second height difference ΔH2′ caused by the lens overlapping portion LOb is relatively small compared to the height difference when the lens overlapping portion LOb does not exist, the height between the peak of each of the first lens structure Lb1 and the second lens structure Lb2 that are continuously arranged and the second point P2′ is relatively reduced, thereby suppressing or eliminating the generation of flicker.

[0260] According to another embodiment of the present disclosure, at least two lens structures among the plurality of lens structures Lb1 to Lbn may have different sizes. In this case, since the plurality of lens structures Lb1 to Lbn have different sizes, and two adjacent lens structures among the plurality of lens structures Lb1 to Lbn share the lens overlap portion LOb and are continuously arranged, the first convex surface 913a of the pattern portion 913 may be irregularly formed at different heights. In addition, the top surfaces of the plurality of lens patterns 910 may be irregularly formed at different heights. Therefore, since the top surfaces of the plurality of lens patterns 910 are irregularly formed, mura patterns such as rainbow mura or ring mura may be prevented from occurring.

[0261] Any one of the multiple lens structures Lb1 to Lbn may have a second short axis length B1′ in the vertical direction and a second long axis length B2′ in the horizontal direction. In this case, the vertical direction may be the direction along which the top surface 900a and the bottom surface 900b of the light guide member 900 face each other, and the horizontal direction may be a direction perpendicular to the vertical direction. In this case, the second long axis length B2′ may be set to be greater than the second short axis length B1′. In addition, the second short axis length B1′ may refer to the shortest distance between the peak and the lowest point of any one of the multiple lens structures Lb1 to Lbn, and the second long axis length B2′ may refer to the shortest distance between the left end and the right end of any one of the multiple lens structures Lb1 to Lbn.

[0262] According to one embodiment of the present disclosure, at least one lens structure among the plurality of lens structures Lb1 to Lbn may have an elliptical shape having a second minor axis length B1′ and a second major axis length B2′. For example, the first lens structure Lb1 and the second lens structure Lb2 may have elliptical shapes of different sizes and may partially overlap. In this case, each of the second minor axis length B1′ and the second major axis length B2′ of the first lens structure Lb1 may be greater than each of the second minor axis length B1′ and the second major axis length B2′ of the second lens structure Lb2.

[0263] The filling layer 930 may be disposed on the plurality of lens patterns 910 and may form a top surface 900a of the light guide member 900. The filling layer 930 may be configured to surround the top surface of the plurality of lens patterns 910. In detail, the filling layer 930 may include a material having a second refractive index. In this case, the second refractive index of the filling layer 930 may be greater than the first refractive index of the plurality of lens patterns 910. For example, the difference between the second refractive index and the first refractive index may be greater than or equal to 0.05 and less than or equal to 0.10.

[0264] When the difference between the first refractive index and the second refractive index is less than 0.05, flicker is visually recognizable and distortion occurs in the image, and when the difference between the first refractive index and the second refractive index exceeds 0.10, the material reliability between the multiple lens patterns 910 and the filling layer 930 may be reduced, making it difficult to easily manufacture the light guide member 900.

[0265] FIG. 16A to FIG. 16C is a cross-sectional view schematically illustrating a method for manufacturing a light guide member according to another embodiment of the present disclosure. Specifically, FIG. 16A to FIG. 16C The cross-sectional view of Fig.15 The present invention is related to the embodiments of the present invention, and the same reference numerals are assigned to the same configurations, and repeated descriptions are omitted or may be briefly provided.

[0266] First, if Fig.16A As shown, the resin composition 915 may be applied to the carrier film CF. Specifically, the resin composition 915 may be applied on one surface of the carrier film CF, for example, the top surface of the carrier film CF.

[0267] The resin component 915 may be a flowable material having a viscosity equal to or higher than a predetermined level. Therefore, even when the resin component 915 is applied to one surface of the carrier film CF, the resin component 915 does not fall off the carrier film CF.

[0268] The resin composition 915 includes a curable material 915a and a sintering material 915b. Specifically, the sintering material 915b is dispersed in or on the surface of the curable material 915a. Since the resin composition 915 includes the curable material 915a and the sintering material 915b dispersed in or on the surface of the curable material 915a, when the resin composition 915 is applied to the carrier film CF, the sintering material 915b dispersed in the resin composition 915 may be irregularly arranged.

[0269] In the resin component 915, the ratio of the sintered material 915b to the curable material 915a may be greater than or equal to 2wt% (weight percentage) and less than or equal to 3wt%. When the ratio of the sintered material 915b to the curable material 915a is less than 2wt%, the ratio of the sintered material 915b in the resin component 915 is reduced, thereby reducing the mura improvement effect or the flicker improvement effect, and when the ratio of the sintered material 915b to the curable material 915a exceeds 3wt%, the sintered material 915b may overlap with each other and aggregate particles, thereby reducing the mura improvement effect or the flicker improvement effect.

[0270] The curable material 915a may include a photocurable material. However, the present disclosure is not limited thereto. The curable material 915a may include, for example, a material that is cured by light in a visible light wavelength band region or an ultraviolet wavelength band region. Specifically, the curable material 915a may be cured by light having a wavelength of, for example, greater than or equal to 200 nm and less than or equal to 1000 nm. The curable material 915a may be, for example, an acrylic resin, but is not limited thereto. The curable material 915a may be cured by, for example, a xenon lamp.

[0271] The sintering material 915b may be dispersed in the curable material 915a. In detail, a portion of the sintering material 915b may be covered by the curable material 915a, another portion of the sintering material 915b may be partially covered by the curable material 915a, and the remaining portion may be exposed to the outside. The sintering material 915b may be sintered by light irradiation, but is not limited thereto.

[0272] According to an embodiment of the present disclosure, the sintered material 915b may include a plurality of particles having different sizes. The sintered material 915b may include a plurality of spherical particles having different sizes, but is not limited thereto. The sintered material 915b may be a plurality of elliptical particles having different sizes.

[0273] When the sintered material 915b is a spherical particle, the sintered material 915b may include a plurality of spherical particles having different sizes (i.e., diameters) in a range of greater than 0 and less than or equal to 90 μm. The sintered material 915b may include a plurality of spherical particles having different sizes in the spherical particles having a diameter greater than 0 and less than or equal to 90 μm. For example, the sintered material 915b may include a plurality of spherical particles having different sizes in the spherical particles having a diameter greater than 0 and less than or equal to 40 μm. For example, the sintered material 915b may include a plurality of spherical particles having different sizes in the spherical particles having a diameter greater than or equal to 35 μm and less than or equal to 75 μm. For example, the sintered material 915b may include a plurality of spherical particles having different sizes in the spherical particles having a diameter greater than or equal to 70 μm and less than or equal to 90 μm, but is not limited thereto.

[0274] The present disclosure is not limited thereto, and when the sintered material 915 b is an elliptical particle, the sintered material 915 b may include a plurality of elliptical particles having different major axis diameters within a range of greater than 0 and less than or equal to 90 μm.

[0275] The sintering material 915b can be sintered, for example, by light in the visible light wavelength band region or the ultraviolet light wavelength band region. Specifically, the sintering material 915b can be sintered by light having a wavelength of, for example, greater than or equal to 200nm and less than or equal to 1000nm. The sintering material 915b can be sintered by, for example, a xenon lamp.

[0276] The sintering material 915b may include a material sintered by light in a visible light wavelength band region or an ultraviolet light wavelength band region. For example, the sintering material 915b may include a metal oxide or silicon oxide (SiO2), but is not limited thereto. When a metal oxide is used as the sintering material 915b, the sintering material 915b may include, for example, at least one of zinc oxide (ZnO), aluminum oxide (Al2O3), magnesium oxide (MgO), and tin oxide (SnO2).

[0277] Next, if Fig. 16B As shown, light L′ having a predetermined wavelength band may be irradiated onto the resin composition 915 by using the light irradiation part LIP. In this case, the resin composition 915 may be cured to form a plurality of lens patterns 910.

[0278] The light L′ irradiated onto the resin composition 915 may be light having a wavelength band for converting the curable material 915 a and the sintering material 915 b contained in the resin composition 915 .

[0279] The light L' may be, for example, light in the ultraviolet wavelength band and the visible wavelength band. Specifically, the light L' may be, for example, light having a wavelength of 200 nm or more and 1000 nm or less. The light L' may be, for example, light generated from a xenon (Xe) lamp.

[0280] According to another embodiment of the present disclosure, when the light L' generated by the light irradiation part LIP is irradiated onto the resin component 915, the curable material 915a in the resin component 915 may be cured by the light L', and the sintered material 915b may be sintered by the light L' relative to each other. In this case, in the case where the sintered material 915b is a spherical particle, the sintered material 915b may have a length in the vertical direction and a length in the horizontal direction, respectively. Specifically, the sintered material 915b may overlap with the adjacent sintered material 915b when being sintered, and the length of the sintered material 915b in the vertical direction may be shorter than the length in the horizontal direction. However, the present disclosure is not limited thereto.

[0281] According to another embodiment of the present disclosure, since the sintered material 915b includes a plurality of spherical particles of different sizes, when the sintered material 915b is irradiated with light L', the plurality of spherical particles may be sintered irregularly. Therefore, the upper surface 913b of the pattern portion 913 formed after the sintered material 915b is sintered may have an irregular shape. By forming in this manner, the light guide member 900 according to an embodiment of the present disclosure may prevent the occurrence of mura patterns, such as ring mura or rainbow mura, and may reduce the height difference between adjacent lens structures in the plurality of lens structures Lb1 to Lbn to prevent flickering.

[0282] As the curable material 915a is cured and the sintered material 915b is sintered, the curable material 915a may form the base portion 911 and the sintered material 915b may form the pattern portion 913. Therefore, the resin composition 915 may become a plurality of lens patterns 910 according to another embodiment of the present disclosure by the light L′ irradiated from the light irradiation part LIP.

[0283] Finally, if Fig. 16C As shown, when a filling layer 930 is applied on the plurality of lens patterns 910 and the carrier film CF disposed under the plurality of lens patterns 910 is removed, a light guide member 900 according to another embodiment of the present disclosure may be implemented. When the light guide member 900 is manufactured according to another embodiment of the present disclosure, since the plurality of lens patterns 910 are formed using a resin composition 915 in which a curable material 915a and a sintering material 915b are mixed, the manufacturing time of the light guide member 900 may be shortened.

[0284] Figures 17A to 17C is a planar TEM photograph of a light guide member 900 according to another embodiment of the present disclosure. In this case, 17A to 17C Parts involving light exposure (see Fig. 16B The emission intensity of LIP in the experiment was 500 mJ / cm 2 light (see Fig. 16B L' in the figure), and the sizes of the plurality of spherical particles with different sizes are respectively in the range of greater than 0 μm and less than or equal to 40 μm, in the range of greater than or equal to 35 μm and less than or equal to 75 μm, and in the range of greater than or equal to 70 μm and less than or equal to 90 μm.

[0285] from FIG. 17A to FIG. 17C It can be seen from the embodiment of FIG. 1 that the roughness Ra of the pattern portion 913 can be determined according to the sintered material (see Fig.16A Specifically, as the sintered material (see Fig.16A The size of 915b) in the pattern portion 913 is relatively increased, and the roughness Ra of the pattern portion 913 can be reduced to 0.827μm, 0.789μm and 0.711μm respectively.

[0286] Therefore, the present disclosure may have the following advantages.

[0287] According to an embodiment of the present disclosure, a plurality of lens patterns and lens connecting portions provided in a light guiding component are arranged in an atypical state, so that the occurrence of moiré and flicker phenomena caused by interference between the plurality of lens patterns and lens connecting portions and pixels can be minimized or reduced, thereby improving image quality and improving image visibility for viewers.

[0288] According to an embodiment of the present disclosure, the light guiding component includes a plurality of lens patterns and a lens connecting portion having a relatively low refractive index and a filling layer having a relatively high refractive index, so that the problem of Mura phenomena (such as rainbow Mura and ring Mura phenomena) being identified due to external light being reflected onto electrodes and wirings inside the display device can be minimized.

[0289] According to an embodiment of the present disclosure, by providing a lens connecting portion between a plurality of lens patterns, a height difference between each of the plurality of lens patterns and a recessed portion between the plurality of lens patterns may be reduced, thereby minimizing a problem of visually recognizing flicker.

[0290] It is obvious to those skilled in the art that various substitutions, modifications and changes can be made within the scope of the present disclosure without departing from the spirit and scope of the present disclosure. Therefore, the scope of the present disclosure is represented by the following claims, and all changes or modifications derived from the meaning, scope and equivalent concepts of the claims should be interpreted as included within the scope of the present disclosure.

Claims

1. An organic light emitting display device, comprising: A display panel comprising a circuit element layer and a light guide member disposed on the circuit element layer, the light guide member having a bottom surface and a top surface opposite to the bottom surface, Wherein, the light guide component comprises: a plurality of lens patterns extending from the bottom surface toward the top surface and irregularly arranged in the light guide member; a lens connecting portion disposed between and in contact with the plurality of lens patterns; and A filling layer is disposed on the plurality of lens patterns and the lens connecting portion.

2. The organic light emitting display device according to claim 1, in, The lens connection portion extends along a boundary disposed between the plurality of lens patterns.

3. The organic light emitting display device according to claim 1, in, The lens connection portion is continuous along a boundary provided between the plurality of lens patterns without being disconnected.

4. The organic light emitting display device according to claim 1, in, Two adjacent lens patterns among the plurality of lens patterns contact each other at one point, and The lens connecting portion overlaps with the one point.

5. The organic light emitting display device according to claim 1, in, A bottom surface of the lens connecting portion and bottom surfaces of the plurality of lens patterns constitute the bottom surface of the light guide member.

6. The organic light emitting display device according to claim 1, in, The lens connecting portion includes a plurality of irregularly arranged protrusion structures.

7. The organic light emitting display device according to claim 6, in, At least some of the plurality of raised structures overlap with each other.

8. The organic light emitting display device according to claim 6, in, The plurality of convex structures and the plurality of lens patterns are respectively arranged in a circular shape on a plane, and a diameter of each of the plurality of convex structures is smaller than a diameter of each of the plurality of lens patterns.

9. The organic light emitting display device according to claim 6, in, A curvature radius of any one of the plurality of protrusion structures is greater than or equal to 10 μm and less than or equal to 90 μm.

10. The organic light emitting display device according to claim 1, in, The plurality of lens patterns include a first lens pattern having a first height and a second lens pattern having a second height different from the first height.

11. The organic light emitting display device according to claim 10, in, A portion of the lens connecting portion is disposed between the first lens pattern and the second lens pattern and has a third height, and The third height is smaller than the first height and the second height.

12. The organic light emitting display device according to claim 10, in, The lens connecting portion includes a first convex structure adjacent to the first lens pattern and a second convex structure adjacent to the second lens pattern, and The first convex structure and the second convex structure share a partial area with each other.

13. The organic light emitting display device according to claim 10, in, The lens connecting portion includes a plurality of protrusion structures, and a curvature radius of each of the first lens pattern and the second lens pattern is smaller than a curvature radius of each of the plurality of protrusion structures of the lens connecting portion.

14. The organic light emitting display device according to claim 1, in, The first refractive index of the plurality of lens patterns is less than the second refractive index of the filling layer, and A difference between the first refractive index and the second refractive index is greater than or equal to 0.05 and less than or equal to 0.

10.

15. The organic light emitting display device according to claim 1, in, The plurality of lens patterns are arranged in a circular shape on a plane, and a diameter of any one of the plurality of lens patterns is greater than or equal to 10 μm and less than or equal to 60 μm, and A height-to-diameter ratio of any one of the plurality of lens patterns is greater than or equal to 20% and less than or equal to 50%.

16. The organic light emitting display device according to claim 14, wherein: The lens connecting portion has the first refractive index.

17. The organic light emitting display device according to claim 1, wherein: The haze value of the light guide component is greater than or equal to 5% and less than or equal to 15%, preferably greater than or equal to 7% and less than or equal to 13%.

18. The organic light emitting display device according to claim 1, wherein: The lens connecting portion includes a plurality of protruding structures, which form a plurality of recessed portions together with the plurality of lens patterns, and a sum of a height of each of the plurality of lens patterns and a height of each of the plurality of recessed portions is greater than or equal to 0.5 μm and less than or equal to 15 μm, preferably greater than or equal to 0.8 μm and less than or equal to 13 μm.

19. A method for manufacturing a light guide component of an organic light emitting display device, comprising: a step of forming a first pattern in a surface of the mold using a laser, the first pattern comprising a plurality of first recessed portions; a step of forming a second pattern on the surface of the mold by forming a plurality of second recessed portions at boundaries between the plurality of first recessed portions of the first pattern using a sandblasting process; forming a plurality of lens patterns and lens connecting parts between the plurality of lens patterns using the mold including the first pattern and the second pattern; as well as forming a filling layer on the plurality of lens patterns and the lens connecting portion, wherein the plurality of first recessed portions correspond to the plurality of lens patterns, and The plurality of second recessed portions correspond to the lens connecting portion.

20. The method for manufacturing a light guide member according to claim 19, in, The sandblasting process uses multiple beads, and Each of the plurality of beads has a size of 10 μm or more and 90 μm or less.

21. The method for manufacturing a light guide member according to claim 20, in, Each bead includes one material among SiO2, Al2O3, Na2O, MgO, CaO, K2O and TiO2.

22. The method for manufacturing a light guide component according to claim 19, wherein: The step of forming a first pattern on the surface of the mold using a laser comprises: irradiating the laser onto the surface of the mold to form a predetermined pattern; and The predetermined pattern is etched using an etchant to form the first pattern, the predetermined pattern having a size smaller than that of the first pattern.

23. A display device comprising: A display panel comprising a circuit element layer and a light guide member disposed on the circuit element layer, wherein the light guide member comprises a plurality of lens patterns and a filling layer disposed on the plurality of lens patterns, Wherein, each of the plurality of lens patterns comprises: a base portion; and a pattern portion disposed on the base portion; and Wherein, the pattern part comprises: A first lens structure and a second lens structure having the same shape, wherein the first lens structure and the second lens structure overlap each other to form a lens overlap portion.

24. The display device according to claim 23, in, The plurality of lens patterns are irregularly arranged.

25. The display device according to claim 23, in, The pattern part and the base part include different materials.

26. The display device according to claim 25, in, The base portion includes an acrylic-based material.

27. The display device according to claim 25, in, The pattern part includes any one of zinc oxide, aluminum oxide, magnesium oxide, tin oxide, and silicon oxide.

28. The display device according to claim 21, in, The pattern portion has a refractive index that is the same as a refractive index of the base portion.

29. The display device according to claim 21, in, The first lens structure and the second lens structure are configured to have the same size.

30. The display device according to claim 21, in, The plurality of lens patterns are formed by irradiating light to a resin composition including a curable material and a sintering material provided in the curable material, and the sintering material includes a plurality of spherical particles or elliptical particles having the same size.

31. The display device according to claim 21, in, The first lens structure and the second lens structure are provided in different sizes.

32. The display device according to claim 21, in, The plurality of lens patterns are formed by irradiating light to a resin composition including a curable material and a sintering material provided in the curable material, and the sintering material includes a plurality of spherical particles or elliptical particles having different sizes.

33. The display device according to claim 28, wherein: The refractive index of the filling layer is greater than the refractive index of the pattern portion.

34. The display device according to claim 30 or 32, wherein: The sintering material is partially covered by the curable material.

35. The display device according to claim 34, wherein: The ratio of the sintering material to the curable material is greater than or equal to 2 wt % and less than or equal to 3 wt %.

36. The display device according to claim 34, wherein: When the sintered material is a spherical particle, the diameter of the spherical particle is within the range of greater than 0 and less than or equal to 90 μm, and when the sintered material is an elliptical particle, the major axis diameter of the elliptical particle is within the range of greater than 0 and less than or equal to 90 μm.

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