Optical path control member and display device including the same

Abstract

The optical path control member according to the embodiment includes: a first substrate defining a first direction and a second direction; a first electrode provided on the first substrate; a second substrate provided on the first substrate and defining the first direction and the second direction; a second electrode provided below the second substrate; and an optical conversion unit provided between the first electrode and the second electrode, wherein the second substrate and the second electrode include cut portions that penetrate the second substrate and the second electrode, the cut portions including: 1-1 and 1-3 cut portions provided to face each other in the second direction; a 1-2 cut portion adjacent to and spaced apart from the 1-1 cut portion; and a 1-4 cut portion adjacent to and spaced apart from the 1-3 cut portion, 1-1 and 1-3 sealing portions are respectively provided on the 1-1 and 1-3 cut portions, and 1-2 and 1-4 sealing portions are respectively provided in the 1-2 and 1-4 cut portions.

Description

Technical Field

[0001] The embodiments relate to an optical path control component, and to a display device including the optical path control component. Background Technology

[0002] The light-shielding film blocks the transmission of light from the light source and is attached to the front surface of the display panel of a display device used in mobile phones, laptops, tablets, vehicle navigation devices, vehicle touch screens, etc. This allows the light-shielding film to adjust the angle of light according to the angle of incidence, so that when the display transmits images, it can display clear image quality at the viewing angle required by the user.

[0003] In addition, shading film can be used on windows of vehicles, buildings, etc. to partially block external light to prevent glare or to prevent the interior from being seen from the outside.

[0004] In other words, a light-blocking film can be a light path control component that controls the movement path of light to block light in a specific direction and transmit light in a specific direction. Therefore, the user's viewing angle can be controlled by controlling the transmission angle of light through the light-blocking film.

[0005] Meanwhile, this type of light-blocking film can be divided into light-blocking films that can always control the viewing angle regardless of the surrounding environment or the user's environment, and switchable light-blocking films that allow the user to open / close the viewing angle control according to the surrounding environment or the user's environment.

[0006] This switchable light-blocking film can be achieved by filling the patterned section with particles that can move when a voltage is applied and a dispersion liquid for dispersing the particles, and by dispersing and aggregating the particles, thereby converting the patterned section into a light-transmitting section and a light-blocking section.

[0007] In other words, a switchable light-shielding film may include multiple patterns filled with a dispersion liquid to change the light path.

[0008] As described above, these patterns are formed by filling a viscous dispersion. Therefore, there is a problem that the driving characteristics and reliability of the switchable light-shielding film may be reduced due to dispersion leakage or impurities penetrating into the dispersion during use.

[0009] Furthermore, when a switchable light-shielding film is combined with a display panel and used as a display device, the pattern of the switchable light-shielding film overlaps with the pattern of the display panel, which may result in moiré patterns. Therefore, when a user uses the display device, there is a problem of reduced visibility due to moiré patterns.

[0010] Therefore, there is a need for optical path control components with new structures that can solve the above problems. Summary of the Invention

[0011] Technical issues

[0012] The embodiments relate to an optical path control component with improved visibility and reliability, and a display device including the optical path control component.

[0013] Technical solution

[0014] The optical path control component according to an embodiment includes: a first substrate defining a first direction and a second direction on the first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate and defining the first direction and the second direction; a second electrode disposed under the second substrate; and an optical conversion unit disposed between the first electrode and the second electrode, wherein the second substrate and the second electrode include cut portions penetrating the second substrate and the second electrode, wherein the cut portions include: a 1-1 cut portion and a 1-3 cut portion disposed facing each other in the second direction; a 1-2 cut portion adjacent to and spaced apart from the 1-1 cut portion; and a 1-4 cut portion adjacent to and spaced apart from the 1-3 cut portion, wherein a 1-1 sealing portion and a 1-3 sealing portion are respectively disposed on the 1-1 cut portion and the 1-3 cut portion, and a 1-2 sealing portion and a 1-4 sealing portion are respectively disposed within the 1-2 cut portion and the 1-4 cut portion.

[0015] Beneficial effects

[0016] In the optical path control component according to the embodiment, a 1-1 cutting portion, a 1-2 cutting portion, a 1-3 cutting portion and a 1-4 cutting portion can be formed on the second substrate, and the 1-1 cutting portion, the 1-2 cutting portion, the 1-3 cutting portion and the 1-4 cutting portion penetrate the second substrate, the second electrode, the buffer layer, and all or part of the optical conversion unit.

[0017] In addition, sealing parts 1-1, 1-2, 1-3 and 1-4 can be respectively provided in cutting parts 1-1, 1-2, 1-3 and 1-4.

[0018] The sealing portions 1-1 and 1-3, located within the cutting portions 1-1 and 1-3, can seal the housing of the light conversion unit. In other words, the sealing portion 1-1 can prevent the light conversion material housed in the housing from leaking out, and can also prevent impurities that may penetrate from the outside from penetrating into the light conversion unit.

[0019] In addition, the sealing parts 1-2 and 1-4 provided in the cutting parts 1-2 and 1-4 can prevent the light conversion material from leaking during the process of injecting the light conversion material into the receiving part.

[0020] Therefore, since the optical path control component according to the embodiment includes sealing portions 1-1 and 1-3 for sealing the light conversion material and sealing portions 1-2 and 1-4 for blocking the movement of the light conversion material, the visibility and reliability of the optical path control component can be improved. Attached Figure Description

[0021] Figure 1 This is a perspective view of the optical path control component according to the first embodiment.

[0022] Figure 2 This is a top view of the first substrate of the optical path control component according to the first embodiment.

[0023] Figure 3 This is a top view of the second substrate of the optical path control component according to the first embodiment.

[0024] Figure 4 This is a top view of the second substrate in which the first substrate and the second substrate of the optical path control component according to the first embodiment are stacked.

[0025] Figure 5 and Figure 6 It is along Figure 1 A sectional view taken by line A-A'.

[0026] Figure 7 It is along Figure 1 The sectional view taken by line B-B'.

[0027] Figure 8 It is along Figure 1 A sectional view taken by line C-C'.

[0028] Figure 9 It is along Figure 1 A sectional view taken by line D-D'.

[0029] Figure 10 It is along Figure 1 The sectional view taken by the line EE'.

[0030] Figure 11 It is along Figure 1 The sectional view taken by line F-F'.

[0031] Figure 12 It is along Figure 1 A cross-sectional view taken by line G-G'.

[0032] Figure 13 It is along Figure 1 A sectional view taken by line H-H'.

[0033] Figure 14 This is a perspective view of the optical path control component according to the second embodiment.

[0034] Figure 15 This is a top view of the first substrate of the optical path control component according to the second embodiment.

[0035] Figure 16 This is a top view of the second substrate of the optical path control component according to the second embodiment.

[0036] Figure 17 This is a top view of the second substrate, in which the first substrate and the second substrate of the optical path control component according to the second embodiment are stacked.

[0037] Figure 18 It is along Figure 14 A sectional view taken by line I-I'.

[0038] Figure 19 This is a perspective view of the optical path control component according to the third embodiment.

[0039] Figure 20 This is a perspective view of the optical path control component according to the fourth embodiment.

[0040] Figure 21 This is a perspective view of the optical path control component according to the fifth embodiment.

[0041] Figure 22 This is a perspective view of the optical path control component according to the sixth embodiment.

[0042] Figure 23 It is along Figure 22 A sectional view taken by line J-J'.

[0043] Figure 24 This is a perspective view of the optical path control component according to the seventh embodiment.

[0044] Figure 25 This is a top view of the second substrate, which is a stack of the first substrate and the second substrate of the optical path control component according to the seventh embodiment.

[0045] Figure 26 It is along Figure 25 A sectional view taken by line K-K'.

[0046] Figure 27 and Figure 28 This is a cross-sectional view of a display device that utilizes the optical path control component according to an embodiment.

[0047] Figures 29 to 31 This is a diagram illustrating one embodiment of a display device that applies the optical path control component according to an embodiment. Detailed Implementation

[0048] In the following description, embodiments of the invention will be specifically described with reference to the accompanying drawings. However, the spirit and scope of the invention are not limited to the portion of the described embodiments, and it may be implemented in various other forms. Furthermore, one or more elements of the embodiments may be selectively combined and substituted within the spirit and scope of the invention.

[0049] Furthermore, unless otherwise explicitly defined and described, the terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as having the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains, and terms defined, for example, in a common dictionary may be interpreted as having a meaning consistent with their meaning in the context of the relevant art.

[0050] Furthermore, the terminology used in the embodiments of the present invention is for describing the embodiments and is not intended to limit the present invention. In this specification, unless specifically stated in the wording, the singular form may also include the plural form, and when described as "at least one (or more) of A (and), B and C", it may include at least one of all combinations that can be combined among A, B, and C.

[0051] Furthermore, when describing the elements of embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are used only to distinguish elements from other elements, and they do not limit the nature, order, or sequence of the elements.

[0052] In addition, when an element is described as being “connected” or “combined” to another element, it can include not only cases where the element is directly “connected” or “combined” to other elements, but also cases where the element is “connected” or “combined” to another element through which the element is connected or “combined” with other elements.

[0053] Furthermore, when described as being formed or disposed "above" or "below" the elements, "above" or "below" can include not only the case where two elements are directly connected to each other, but also the case where one or more other elements are formed or disposed between the two elements.

[0054] Furthermore, when expressed as "up" or "down", it may include not only the upward direction based on a single element, but also the downward direction based on a single element.

[0055] In the following description, an optical path control component according to an embodiment will be described with reference to the accompanying drawings. The optical path control component described below relates to a switchable optical path control component driven in multiple modes based on electrophoretic particles that move by an applied voltage.

[0056] In the following text, reference will be made to Figures 1 to 13 The optical path control component according to the first embodiment is described.

[0057] Reference Figures 1 to 13 The optical path control component according to the first embodiment includes a first substrate 110, a second substrate 120, a first electrode 210, a second electrode 220, and an optical conversion unit 300.

[0058] The first substrate 110 can support the first electrode 210. The first substrate 110 can be rigid or flexible.

[0059] Furthermore, the first substrate 110 may be transparent. For example, the first substrate 110 may include a transparent substrate that is capable of transmitting light.

[0060] The first substrate 110 may include glass, plastic, or a flexible polymer film. For example, the flexible polymer film may be made of any of the following: polyethylene terephthalate (PET), polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer (ABS), polymethyl methacrylate (PMMA), polyethylene naphthalate (PEN), polyethersulfone (PES), cyclic olefin copolymer (COC), triacetyl cellulose (TAC) film, polyvinyl alcohol (PVA) film, polyimide (PI) film, and polystyrene (PS). This is only an example, but the embodiments are not limited thereto.

[0061] In addition, the first substrate 110 can be a flexible substrate with flexible properties.

[0062] Furthermore, the first substrate 110 can be a curved or bent substrate. That is, the optical path control member including the first substrate 110 can also be formed to have flexible, curved, or bent characteristics. Therefore, the optical path control member according to the embodiment can be modified into various designs.

[0063] The first substrate 110 may extend along a first direction 1A, a second direction 2A and a third direction 3A.

[0064] Specifically, the first substrate 110 has a first direction 1A corresponding to the length or width direction of the first substrate 110, a second direction 2A extending in a direction different from the first direction 1A and corresponding to the length or width direction of the first substrate 110, and a third direction 3A extending in a direction different from the first direction and the second direction and corresponding to the thickness direction of the first substrate 110.

[0065] For example, the first direction 1A can be defined as the length direction of the first substrate 110, the second direction 2A can be defined as the width direction of the first substrate 110 perpendicular to the first direction 1A, and the third direction 3A can be defined as the thickness direction of the first substrate 110. Alternatively, the first direction 1A can be defined as the width direction of the first substrate 110, the second direction 2A can be defined as the length direction of the first substrate 110 perpendicular to the first direction 1A, and the third direction 3A can be defined as the thickness direction of the first substrate 110.

[0066] In the following text, for ease of description, the first direction 1A is described as the length direction of the first substrate 110, the second direction 2A is described as the width direction of the first substrate 110, and the third direction 3A is described as the thickness direction of the first substrate 110.

[0067] The first electrode 210 can be disposed on one surface of the first substrate 110. Specifically, the first electrode 210 can be disposed on the upper surface of the first substrate 110. That is, the first electrode 210 can be disposed between the first substrate 110 and the second substrate 120.

[0068] The first electrode 210 may include a transparent conductive material. For example, the first electrode 210 may include a conductive material having a light transmittance of about 80% or more. For example, the first electrode 210 may include metal oxides such as indium tin oxide, indium zinc oxide, copper oxide, tin oxide, zinc oxide, titanium oxide, etc.

[0069] The first electrode 210 may have a thickness of about 10 nm to about 300 nm.

[0070] Alternatively, the first electrode 210 may comprise various metals to achieve low resistance. For example, the first electrode 210 may comprise at least one metal selected from chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), molybdenum (Mo), gold (Au), titanium (Ti), and alloys thereof.

[0071] The first electrode 210 may be disposed on the entire surface of one surface of the first substrate 110. Specifically, the first electrode 210 may be disposed as a surface electrode on one surface of the first substrate 110. However, the embodiments are not limited thereto, and the first electrode 210 may be formed by a plurality of patterned electrodes having a certain pattern (e.g., a mesh or stripe shape).

[0072] For example, the first electrode 210 may include multiple conductive patterns. Specifically, the first electrode 210 may include multiple intersecting mesh lines and multiple mesh openings formed by the mesh lines.

[0073] Therefore, even though the first electrode 210 includes metal, it cannot be visually identified from the outside, thereby improving visibility. Furthermore, by increasing light transmittance through the opening, the brightness of the light path control member according to the embodiment can be improved.

[0074] The second substrate 120 may be disposed on the first substrate 110. Specifically, the second substrate 120 may be disposed on the first electrode 210 on the first substrate 110.

[0075] The second substrate 120 may include a material capable of transmitting light. The second substrate 120 may include a transparent material. The second substrate 120 may include a material that is the same as or similar to the first substrate 110 described above.

[0076] For example, the second substrate 120 may include glass, plastic, or a flexible polymer film. For instance, the flexible polymer film may be made of any of the following: polyethylene terephthalate (PET), polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer (ABS), polymethyl methacrylate (PMMA), polyethylene naphthalate (PEN), polyethersulfone (PES), cyclic olefin copolymer (COC), triacetyl cellulose (TAC) film, polyvinyl alcohol (PVA) film, polyimide (PI) film, and polystyrene (PS). This is merely an example, and the embodiments are not limited thereto.

[0077] In addition, the second substrate 120 can be a flexible substrate with flexible properties.

[0078] Furthermore, the second substrate 120 can be a curved or bent substrate. That is, the optical path control member including the second substrate 120 can also be formed to have flexible, curved, or bent characteristics. Therefore, the optical path control member according to the embodiment can be modified into various designs.

[0079] Similar to the first substrate 110 described above, the second substrate 120 may also extend along the first direction 1A, the second direction 2A and the third direction 3A.

[0080] Specifically, the second substrate 120 has a first direction 1A corresponding to the length or width direction of the second substrate 120, a second direction 2A extending in a direction different from the first direction 1A and corresponding to the length or width direction of the second substrate 120, and a third direction 3A extending in a direction different from the first direction and the second direction and corresponding to the thickness direction of the second substrate 120.

[0081] For example, the first direction 1A can be defined as the length direction of the second substrate 120, the second direction 2A can be defined as the width direction of the second substrate 120 perpendicular to the first direction 1A, and the third direction 3A can be defined as the thickness direction of the second substrate 120.

[0082] Alternatively, the first direction 1A can be defined as the width direction of the second substrate 120, the second direction 2A can be defined as the length direction of the second substrate 120 perpendicular to the first direction 1A, and the third direction 3A can be defined as the thickness direction of the second substrate 120.

[0083] In the following text, for ease of description, the first direction 1A is described as the length direction of the second substrate 120, the second direction 2A is described as the width direction of the second substrate 120, and the third direction 3A is described as the thickness direction of the second substrate 120.

[0084] The second electrode 220 can be disposed on one surface of the second substrate 120. Specifically, the second electrode 220 can be disposed on the lower surface of the second substrate 120. That is, the second electrode 220 can be disposed on the surface of the second substrate 120 where the second substrate 120 and the first substrate 110 face each other. That is, the second electrode 220 can be disposed facing the first electrode 210 on the first substrate 110. That is, the second electrode 220 can be disposed between the first electrode 210 and the second substrate 120.

[0085] The second electrode 220 may include a material that is the same as or similar to the material of the first electrode 210 described above.

[0086] The second electrode 220 may include a transparent conductive material. For example, the second electrode 220 may include a conductive material having a light transmittance of about 80% or more. For example, the second electrode 220 may include metal oxides such as indium tin oxide, indium zinc oxide, copper oxide, tin oxide, zinc oxide, titanium oxide, etc.

[0087] The second electrode 220 may have a thickness of about 10 nm to about 300 nm.

[0088] Alternatively, the second electrode 220 may comprise various metals to achieve low resistance. For example, the second electrode 220 may comprise at least one metal selected from chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), molybdenum (Mo), gold (Au), titanium (Ti), and alloys thereof.

[0089] The second electrode 220 may be disposed on the entire surface of one surface of the second substrate 120. However, the embodiments are not limited thereto, and the second electrode 220 may be formed of a plurality of patterned electrodes having a certain pattern, such as a mesh or stripe shape.

[0090] For example, the second electrode 220 may include multiple conductive patterns. Specifically, the second electrode 220 may include multiple intersecting mesh lines and multiple mesh openings formed by the mesh lines.

[0091] Therefore, even though the second electrode 220 includes metal, it cannot be visually identified from the outside, thereby improving visibility. Furthermore, by increasing light transmittance through the opening, the brightness of the light path control member according to the embodiment can be improved.

[0092] The second substrate 120 may have a cutting portion formed on it. Specifically, the second substrate 120 may include a plurality of cutting portions.

[0093] Reference Figure 1 The second substrate may include a 1-1 cutting section h1-1, a 1-2 cutting section h1-2, a 1-3 cutting section h1-3, a 1-4 cutting section h1-4, a 2-1 cutting section h2-1, and a 2-2 cutting section h2-2.

[0094] Cutting parts h1-1 (1-1), h1-2 (1-2), h1-3 (1-3), h1-4 (1-4), h2-1 (2-1), and h2-2 (2-2) can be formed into the shape of holes or grooves.

[0095] For example, at least one of the 1-1 cutting portion h1-1, 1-2 cutting portion h1-2, 1-3 cutting portion h1-3, 1-4 cutting portion h1-4, 2-1 cutting portion h2-1, and 2-2 cutting portion h2-2 can be formed as a groove, one end of which (being the upper surface of the second substrate) can be open, and the other end (being the lower surface of the light conversion unit) can be closed. Furthermore, at least one of the 1-1 cutting portion h1-1, 1-2 cutting portion h1-2, 1-3 cutting portion h1-3, 1-4 cutting portion h1-4, 2-1 cutting portion h2-1, and 2-2 cutting portion h2-2 can be formed as a groove, one end of which (being the upper surface of the second substrate) can be open, and the other end (being the lower surface of the light conversion unit) can be either open or closed, and either side in the direction perpendicular to the longitudinal direction of the cutting portion is open.

[0096] Specifically, the 1-1 cutting portion h1-1, the 1-3 cutting portion h1-3, the 1-4 cutting portion h1-4, the 2-1 cutting portion h2-1, and the 2-2 cutting portion h2-2 can be disposed within the second substrate 120. Therefore, the 1-1 cutting portion h1-1, the 1-3 cutting portion h1-3, the 1-4 cutting portion h1-4, the 2-1 cutting portion h2-1, and the 2-2 cutting portion h2-2 can be formed as a groove, one end of which (which is the upper surface of the second substrate) can be open, and the other end (which is the lower surface of the light conversion unit) can be closed.

[0097] Furthermore, the 1-2 cutting portion h1-2 can be provided on the upper surface and a side surface of the second substrate. Accordingly, the 1-2 cutting portion h1-2 can be formed as a groove, one end of which (the upper surface of the second substrate) can be open, the other end (the lower surface of the light conversion unit) can be closed, and one side in the direction perpendicular to the longitudinal direction of the cutting portion is open.

[0098] Cutting portions h1-1 (1-1), h1-2 (1-2), h1-3 (1-3), h1-4 (1-4), h2-1 (2-1), and h2-2 (2-2) can extend from the second substrate 120 to the first substrate 110.

[0099] At least one of the cutting portions h1-1, h1-2, h1-3, h1-4, h1-1, and h2-2 can be formed to have a shape that narrows in both length and / or width as it extends from the second substrate 120 toward the first substrate 110.

[0100] Cutting portions h1-1 (1-1), h1-2 (1-2), h1-3 (1-3), and h1-4 (1-4) can be arranged facing each other. Specifically, cutting portions h1-1 (1-1), h1-2 (1-2), h1-3 (1-3), and h1-4 (1-4) extend along a first direction 1A of the second substrate 120, and can face each other.

[0101] That is, the 1-1 cutting portion h1-1, the 1-2 cutting portion h1-2, the 1-3 cutting portion h1-3 and the 1-4 cutting portion h1-4 extend along the longitudinal direction of the second substrate 120, and the 1-1 cutting portion h1-1, the 1-2 cutting portion h1-2, the 1-3 cutting portion h1-3 and the 1-4 cutting portion h1-4 can face each other.

[0102] Cutting portions h1-1 (1-1), h1-2 (1-2), h1-3 (1-3), and h1-4 (1-4) may have the same shape and area as each other. Alternatively, cutting portions h1-1 (1-1), h1-2 (1-2), h1-3 (1-3), and h1-4 (1-4) may have different shapes and / or areas as each other.

[0103] At least one of the cutting portions h1-1 (1-1), h1-2 (1-2), h1-3 (1-3), and h1-4 (1-4) can be spaced apart from or in contact with both ends of the second substrate 120.

[0104] Cutting portions h2-1 (2-1) and h2-2 (2-2) can face each other. Specifically, cutting portions h2-1 (2-1) and h2-2 (2-2) extend along the second direction 2A of the second substrate 120, and the first cutting portion h2-1 and the second cutting portion h2-2 can face each other. That is, cutting portions h2-1 (2-1) and h2-2 (2-2) extend along the width direction of the second substrate 120, and the first cutting portion h2-1 (2-1) and h2-2 (2-2) can face each other.

[0105] Cutting portions h2-1 (2-1) and h2-2 (2-2) can have the same shape and area. Alternatively, cutting portions h2-1 (2-1) and h2-2 (2-2) can have different shapes and / or areas.

[0106] At least one of the cutting portions h2-1 (2-1) and h2-2 (2-2) can be spaced apart from or in contact with both ends of the second substrate 120.

[0107] Therefore, the 1-1 cutting portion h1-1, the 1-2 cutting portion h1-2, the 1-3 cutting portion h1-3, the 1-4 cutting portion h1-4, the 2-1 cutting portion h2-1, and the 2-2 cutting portion h2-2 can extend along the edge of the second substrate 120.

[0108] Meanwhile, an opening region OA can be formed in the second substrate 120. Specifically, the 1-3 cutting portion h1-3 and the 1-4 cutting portion h1-4 are spaced apart from the 2-2 cutting portion h2-2, and the opening region OA can be formed in the region between the 1-3 cutting portion h1-3 and the 2-2 cutting portion h2-2, and in the region between the 1-4 cutting portion h1-4 and the 2-2 cutting portion h2-2.

[0109] Through the opening region OA, the current and voltage applied from the electrode connection portion 700 of the second connection region CA2 can be transmitted through the second electrode 220 to the receiving portion 320 of the light conversion unit 300.

[0110] Cutting portions h1-1 (1-1), h1-2 (1-2), h1-3 (1-3), h1-4 (1-4), h2-1 (2-1), and h2-2 (2-2) can be formed on the second substrate 120. Furthermore, cutting portions h1-1 (1-1), h1-2 (1-2), h1-3 (1-3), h1-4 (1-4), h2-1 (2-1), and h2-2 (2-2) can be formed to pass through at least one of the second substrate 120, the light conversion unit 300, and the second electrode 220.

[0111] Furthermore, sealing material can be provided in the 1-1 cutting section h1-1, 1-2 cutting section h1-2, 1-3 cutting section h1-3, 1-4 cutting section h1-4, 2-1 cutting section h2-1, and 2-2 cutting section h2-2. Therefore, sealing material can be provided in the 1-1 cutting section h1-1, 1-2 cutting section h1-2, 1-3 cutting section h1-3, 1-4 cutting section h1-4, 2-1 cutting section h2-1, and 2-2 cutting section h2-2 to form a sealing section 500.

[0112] That is, a first sealing part 510 can be provided in the 1-1 cutting part h1-1, the 1-2 cutting part h1-2, the 1-3 cutting part h1-3 and the 1-4 cutting part h1-4, and a second sealing part 520 can be provided in the 2-1 cutting part h2-1 and the 2-2 cutting part h2-2.

[0113] That is, the first sealing part 510 may include a 1-1 sealing part 511 disposed in the 1-1 cutting part h1-1, a 1-2 sealing part 512 disposed in the 1-2 cutting part h1-2, a 1-3 sealing part 513 disposed in the 1-3 cutting part h1-3, and a 1-4 sealing part 514 disposed in the 1-4 cutting part h1-4.

[0114] The first substrate 110 and the second substrate 120 may have the same or different dimensions.

[0115] Specifically, the first length of the first substrate 110 extending along the first direction 1A can be the same as or similar to the second length of the second substrate 120 extending along the first direction 1A.

[0116] For example, the first length and the second length can be 300mm to 400mm.

[0117] Furthermore, the first width of the first substrate 110 extending along the second direction 2A may be the same as or similar to the second width of the second substrate 120 extending along the second direction.

[0118] For example, the first width and the second width can be 150mm to 200mm.

[0119] Furthermore, the first thickness of the first substrate 110 extending along the third direction 3A can be the same as or similar to the second thickness of the second substrate 120 extending along the third direction.

[0120] For example, the first thickness and the second thickness can be less than 1 mm.

[0121] Furthermore, the first substrate 110 and the second substrate 120 may have different areas.

[0122] Specifically, the first substrate 110 and the second substrate 120 may include protrusions. (Refer to...) Figure 2 and Figure 3 The first substrate 110 may include a first protrusion PA1, and the second substrate 120 may include a second protrusion PA2. Specifically, the first substrate 110 and the second substrate 120 may each include a first protrusion PA1 and a second protrusion PA2 that do not overlap with each other.

[0123] In other words, the first protrusion PA1 and the second protrusion PA2 do not overlap with each other in the third direction 3A.

[0124] Alternatively, the embodiments are not limited thereto; the first protrusion PA1 and the second protrusion PA2 may include overlapping regions that overlap each other and non-overlapping regions that do not overlap each other. That is, the first protrusion PA1 and the second protrusion PA2 may include overlapping regions that overlap each other in a third direction and non-overlapping regions that do not overlap each other.

[0125] In this case, the first protrusion PA1 and the second protrusion PA2 can have different areas. That is, the dimensional difference between the first substrate 110 and the second substrate 120 can be the dimensional difference between the protrusions.

[0126] The connection area that connects to an external printed circuit board or flexible printed circuit board can be formed on the first protrusion PA1 of the first substrate 110 and the second protrusion PA2 of the second substrate 120, respectively.

[0127] Specifically, the first connecting region CA1 can be disposed on the first protrusion PA1, and the second connecting region CA2 can be disposed on the second protrusion PA2. When the first protrusion PA1 and the second protrusion PA2 are disposed in positions where they do not overlap, the first connecting region CA1 and the second connecting region CA2 can not overlap in the third direction 3A.

[0128] Conductive material can be exposed on the upper surfaces of the first connection region CA1 and the second connection region CA2, respectively. The optical path control component can be electrically connected to an external printed circuit board or a flexible printed circuit board through the first connection region CA1 and the second connection region CA2.

[0129] For example, pad portions are provided on the first connection area CA1 and the second connection area CA2, and a conductive adhesive containing at least one of anisotropic conductive film (ACF) and anisotropic conductive paste (ACP) can be provided between the pad portions and the printed circuit board or flexible printed circuit board to connect them.

[0130] Alternatively, a conductive adhesive comprising at least one of anisotropic conductive film and anisotropic conductive paste can be provided between the first connection area CA1 and the second connection area CA2 and the printed circuit board or flexible printed circuit board, and the optical path control component can be directly connected to the external printed circuit board or flexible printed circuit board without the need for solder pads.

[0131] The conductive materials constituting the first connection region CA1 and the second connection region CA2 will be described in detail below.

[0132] The light conversion unit 300 can be disposed between the first substrate 110 and the second substrate 120. Specifically, the light conversion unit 300 can be disposed between the first electrode 210 and the second electrode 220.

[0133] An adhesive layer or a buffer layer may be provided in at least one of the regions between the light conversion unit 300 and the first substrate 110 or between the light conversion unit 300 and the second substrate 120, and the first substrate 110, the second substrate 120 and the light conversion unit 300 may be bonded together by the adhesive layer and / or the buffer layer.

[0134] For example, an adhesive layer 410 can be provided between the first electrode 210 and the light conversion unit 300, so that the first substrate 110 and the light conversion unit 300 can be bonded together.

[0135] Furthermore, a buffer layer 420 is provided between the second electrode 220 and the light conversion unit 300, thereby improving the adhesion between the second electrode 220 and the light conversion unit 300, which are made of different materials.

[0136] The aforementioned cutting portion can be formed to penetrate all or part of the buffer layer 420 and the light conversion unit 300. That is, the cutting portion penetrates the second substrate 120, the second electrode 220 and the buffer layer 420 in a third direction, and can also pass through all or part of the light conversion unit 300.

[0137] The light conversion unit 300 may include a plurality of barrier ribs 310 and a receiving portion 320. A light conversion material 330 may be disposed in the receiving portion 320. The light conversion material 330 includes light conversion particles that move when a voltage is applied and a dispersion liquid for dispersing the light conversion particles, and the light transmission characteristics of the light path control component may be changed by the light conversion particles.

[0138] In addition, a sealing part 500 for sealing the light conversion material 330 and a dam part 600 for easily injecting the light conversion material 330 can be provided in the receiving part 320.

[0139] Reference Figure 3 and Figure 4The receiving portion 320 can extend in one direction. Specifically, the receiving portion 320 can extend in a direction corresponding to the second direction 2A of the first substrate 110 or the second substrate 120. That is, the receiving portion 320 can extend in a direction corresponding to the width direction of the first substrate 110 or the second substrate 120.

[0140] Therefore, the two ends of the receiving portion 320 of the optical path control member according to the first embodiment can respectively face the two ends of the first substrate 110 or the second substrate 120. That is, one end of the receiving portion 320 can face one end of the first substrate 110 or the second substrate 120 in the second direction 2A, and the other end of the receiving portion 320 can face the other end of the first substrate 110 or the second substrate 120 in the second direction 2A.

[0141] Therefore, the two ends of the receiving portion 320 can contact the first sealing portion 510 facing each other in the second direction 2A, and can be spaced apart from the second sealing portion 520.

[0142] Meanwhile, although not shown in the figure, the receiving portion 320 may extend to the second protrusion, and the receiving portion 320 on the second protrusion may not contain light conversion material or may contain less light conversion material than other receiving portions.

[0143] Figure 5 and Figure 6 It is along Figure 1 The sectional view taken by line AA'.

[0144] Reference Figure 5 and Figure 6 The light conversion unit 300 may include a barrier rib 310 and a receiving portion 320.

[0145] The barrier rib 310 can be defined as a barrier rib region that divides the receiving portion. That is, the barrier rib 310 is a barrier rib region that divides multiple receiving portions and can transmit light. In other words, light emitted in the direction of the first substrate 110 or the second substrate 120 can pass through the barrier rib.

[0146] The barrier rib 310 and the receiving portion 320 may extend in a second direction 2A of the first substrate 110 and the second substrate 120. That is, the barrier rib 310 and the receiving portion 320 may extend in the width direction or the length direction of the first substrate 110 and the second substrate 120.

[0147] The barrier rib 310 and the receiving portion 320 can be configured with different widths. For example, the width of the barrier rib 310 can be greater than the width of the receiving portion 320.

[0148] Furthermore, the receiving portion 320 may be formed in a shape that extends from the first electrode 210 to the second electrode 220 and narrows in width.

[0149] The barrier ribs 310 and the receiving portions 320 can be arranged alternately. Specifically, the barrier ribs 310 and the receiving portions 320 can be arranged alternately. That is, each of the barrier ribs 310 can be arranged between adjacent receiving portions 320, and each of the receiving portions 320 can be arranged between adjacent barrier ribs 310.

[0150] The barrier rib 310 may include a transparent material. The barrier rib 310 may also include a material capable of transmitting light.

[0151] The barrier rib 310 may include a resin material. For example, the barrier rib 310 may include a light-curing resin material. For example, the barrier rib 310 may include a UV resin or a transparent photoresist resin. Alternatively, the barrier rib 310 may include a polyurethane resin or an acrylic resin.

[0152] The receiving portion 320 can be formed to partially penetrate the light conversion unit 300. Therefore, the receiving portion 320 can contact the adhesive layer 410 and be spaced apart from the buffer layer 420. Therefore, the base portion 350 can be formed between the receiving portion 320 and the buffer layer 420.

[0153] A light conversion material 330, including light conversion particles 330a and a dispersion 330b in which the light conversion particles 330a are dispersed, can be disposed in the receiving portion 320.

[0154] Dispersion 330b may be a material that disperses light-converting particles 330a. Dispersion 330b may include a transparent material. Dispersion 330b may include a non-polar solvent. Furthermore, dispersion 330b may include a material capable of transmitting light. For example, dispersion 330b may include at least one of halogenated hydrocarbon oil, paraffinic oil, and isopropanol.

[0155] The light conversion particles 330a can be dispersed in the dispersion 330b. Specifically, multiple light conversion particles 330a can be spaced apart from each other in the dispersion 330b.

[0156] The light conversion particles 330a may include materials capable of absorbing light. That is, the light conversion particles 330a may be light-absorbing particles. The light conversion particles 330a may have a color. For example, the light conversion particles 330a may have a black-based color. For example, the light conversion particles 330a may include carbon black particles.

[0157] The surface of the light conversion particle 330a can be charged and can be polarized. For example, the surface of the light conversion particle 330a can be negatively charged. Therefore, by applying a voltage, the light conversion particle 330a can move toward the first electrode 210 or the second electrode 220.

[0158] The transmittance of the container 320 can be changed by the light conversion particles 330a. Specifically, by changing the transmittance of the light conversion particles 330a, the container 320 can become both a light-blocking and a light-transmitting part. In other words, the transmittance of light passing through the container 320 can be changed by the dispersion and aggregation of the light conversion particles 330a disposed in the dispersion liquid 330b.

[0159] For example, the mode of the optical path component according to the first embodiment can be changed from a first mode to a second mode or from a second mode to a first mode by applying a voltage to the first electrode 210 and the second electrode 220.

[0160] Specifically, in the optical path control member according to the first embodiment, the receiving portion 320 becomes a light-shielding portion in the first mode, and can block light at a specific angle. That is, the viewing angle of the user from the outside is narrowed, thereby enabling the optical path control member to be driven in privacy mode.

[0161] Furthermore, in the optical path control member according to the embodiment, the receiving portion 320 becomes a light-transmitting portion in the second mode, and light can pass through both the blocking rib 310 and the receiving portion 320. That is, the viewing angle of the user from the outside is widened, thereby enabling the optical path control member to be driven in the open mode.

[0162] The transition from the first mode to the second mode can be achieved by moving the light-converting particles 330a in the receiving portion 320; that is, the receiving portion 320 can be switched from a light-blocking portion to a light-transmitting portion. In other words, the surface of the light-converting particles 330a carries a charge, and when a voltage is applied, the light-converting particles 330a can move towards the first electrode or the second electrode according to the characteristics of the charge. In other words, the light-converting particles 330a can be electrophoretic particles.

[0163] For example, when no voltage is applied to the optical path control member from the outside, the light conversion particles 330a of the receiving portion 320 are uniformly dispersed in the dispersion liquid 330b, so that the receiving portion 320 can block light through the light conversion particles 330a. Therefore, in the first mode, the receiving portion 320 can be driven as a light-shielding portion.

[0164] Furthermore, the light conversion particle 330a can be moved when a voltage is applied to the optical path control member from the outside. For example, the light conversion particle 330a can be moved toward one end or the other end of the receiving portion 320 by the voltage transmitted by the first electrode 210 and the second electrode 220. That is, the light conversion particle 330a can move toward the first electrode 210 or the second electrode 220.

[0165] For example, when a voltage is applied to the first electrode 210 and / or the second electrode 220, an electric field is formed between the first electrode 210 and the second electrode 220, and the negatively charged light conversion particles 330a can move along the direction of the positive electrode in the electrodes 210 and 220 using the dispersion liquid 330b as a medium.

[0166] For example, refer to Figure 5 In the initial mode or when no voltage is applied to the first electrode 210 and / or the second electrode 220, the light conversion particles 330a can be uniformly dispersed in the dispersion liquid 330b, and the receiving part 320 can be driven as a light-shielding part.

[0167] In addition, refer to Figure 6 When a voltage is applied to the first electrode 210 and / or the second electrode 220, the light-converting particles 330a can move in the dispersion 330b along the direction of the second electrode 220. That is, the light-converting particles 330a can move in one direction, and the receiving portion 320 can be driven to become a light-transmitting portion.

[0168] Therefore, the optical path control member according to the first embodiment can be driven in two modes depending on the user's surrounding environment. That is, when the user needs to transmit light only from a specific angle, the receiving part is driven as a light-blocking part, or when the user needs high brightness, a voltage can be applied to drive the receiving part as a light-transmitting part.

[0169] Therefore, since the optical path control component according to the embodiment can be implemented in two modes according to the user's needs, the optical path control component can be applied regardless of the user's environment.

[0170] The second sealing portion 520 may be provided on the outermost side of the optical path control member. Specifically, the second sealing portion 520, which extends in the second direction 2A and faces each other, may be provided on the outermost side of the optical path control member in the first direction 1A.

[0171] The second sealing part 520 can be provided in the above-mentioned cutting part. Specifically, the second sealing part 520 can be provided in the 2-1 cutting part h2-1 and the 2-2 cutting part h2-2.

[0172] That is, the 2-1 cutting portion h2-1 and the 2-2 cutting portion h2-2 are formed to pass through the second substrate 120, the second electrode 220, the buffer layer 420, the base 350 and part or all of the light conversion unit (the light conversion unit includes the blocking rib 310) in sequence, and the second sealing portion 520 can be formed by providing a sealing material in the 2-1 cutting portion h2-1 and the 2-2 cutting portion h2-2.

[0173] That is, one surface of the barrier rib 310 or adhesive layer 410 is exposed by the 2-1 cutting portion h2-1 and the 2-2 cutting portion h2-2, and the second sealing portion 520 can contact the barrier rib 310 or adhesive layer 410.

[0174] The second sealing portion 520 can contact the side surface of the second substrate 120. Additionally, the second sealing portion 520 can contact the side surface of the second electrode 220. Furthermore, the second sealing portion 520 can contact the side surface of the buffer layer 420. Additionally, the second sealing portion 520 can contact the side surface of the base 350. Furthermore, the second sealing portion 520 can contact the side surface of the barrier rib 310.

[0175] The second sealing part 520 is provided on one side of the optical path control member, that is, on the side in the second direction 2A, so as to prevent impurities that may penetrate from the outside from penetrating into the optical conversion unit 300.

[0176] The second sealing part 520 can be configured to completely fill the 2-1 cutting part h2-1 and the 2-2 cutting part h2-2, or it can be configured at a height lower than the depth of the 2-1 cutting part h2-1 and the 2-2 cutting part h2-2. Therefore, as Figure 5 and Figure 6 As shown, the upper surface of the second sealing portion 520 can be disposed at a height lower than the upper surface of the second substrate 120. That is, a step can be formed between the upper surface of the second sealing portion 520 and the upper surface of the second substrate 120. Furthermore, the upper surface of the second sealing portion 520 can be formed as concave.

[0177] at the same time, Figure 5 and Figure 6 The depth to which the 2-1 cut portion h2-1 and the 2-2 cut portion h2-2 are formed to expose one surface of the adhesive layer 410 is shown, but the embodiments are not limited thereto.

[0178] In other words, the depths of the 2-1 cutting section h2-1 and the 2-2 cutting section h2-2 can vary depending on the process method and process time used to form the 2-1 cutting section h2-1 and the 2-2 cutting section h2-2.

[0179] For example, at least one of the cutting portions h2-1 and h2-2 is formed to partially penetrate the depth of the light conversion unit 300, and one surface of the base, the blocking rib 310, or the receiving portion 320 can be exposed through the cutting portions h2-1 and h2-2.

[0180] Therefore, the second sealing portion 520 can be spaced apart from the adhesive layer 410.

[0181] Alternatively, at least one of the cut portions h2-1 and h2-2 is formed to a depth that completely penetrates the light conversion unit 300, and one surface of the adhesive layer 410 can be exposed through the cut portions h2-1 and h2-2.

[0182] Alternatively, at least one of the cutting portions h2-1 and h2-2 is formed to partially penetrate the depth of the first electrode 210, and a surface of the first electrode 210 can be exposed through the cutting portions h2-1 and h2-2.

[0183] Alternatively, at least one of the cutting portions h2-1 and h2-2 is formed to a depth that partially penetrates the first substrate 110, and a surface of the first substrate 110 can be exposed through the cutting portions h2-1 and h2-2.

[0184] Figure 7 and Figure 8 It is along Figure 1 The sectional view taken from regions B-B' and C-C'. That is, Figure 7 This is a cross-sectional view of both ends of the 1-1 sealing part 511 in the first sealing part 510. Figure 8 This is a cross-sectional view of the two ends of sealing parts 1-2 512 in the first sealing part 510.

[0185] Reference Figure 7 and Figure 8 Sealing portion 511 (1-1) can be disposed within cutting portion h1-1 (1-1), and sealing portion 512 (1-2) can be disposed within cutting portion h1-2 (1-2). Sealing portion 511 and sealing portion 512 can contact the side surface of the second substrate 120. Furthermore, sealing portion 511 and sealing portion 512 can contact the side surface of the second electrode 220. Furthermore, sealing portion 511 and sealing portion 512 can contact the side surface of the buffer layer 420. Furthermore, sealing portion 511 and sealing portion 512 can contact the side surface of the base 350. Furthermore, sealing portion 511 and sealing portion 512 can contact the side surface of the barrier rib 310.

[0186] For example, cut portions 1-1 h1-1 and 1-2 h1-2 are formed to pass through the entirety of the second substrate 120, the second electrode 220, the buffer layer 420, and the light conversion unit 300, and sealing portions 1-1 511 and 1-2 512 can contact the side surfaces of the second substrate 120, the second electrode 220, the buffer layer 420, the base 350, and the barrier rib 310. Cut portions 1-1 h1-1 and 1-2 h1-2 can contact one end of the second substrate 120 in the first direction and both ends of the second substrate 120 in the second direction.

[0187] Cut sections 1-1 and 1-2 can be formed to sequentially penetrate the second substrate 120, the second electrode 220, the buffer layer 420, the base 350, and part or all of the light conversion unit (which includes a blocking rib 310). Subsequently, sealing material can be provided in cut sections 1-1 and 1-2 to form sealing sections 1-1 and 1-2.

[0188] The sealing materials of sealing part 511, sealing part 512, and sealing part 520 may be the same material. Alternatively, the sealing materials of sealing part 511, sealing part 512, and sealing part 520 may be different materials from each other.

[0189] For example, at least one of the 1-1 sealing portion 511, the 1-2 sealing portion 512, and the second sealing portion 520 may include a photocurable material. Furthermore, at least one of the 1-1 sealing portion 511, the 1-2 sealing portion 512, and the second sealing portion 520 may include a material with low reactivity with the photoconversion material. Additionally, at least one of the 1-1 sealing portion 511, the 1-2 sealing portion 512, and the second sealing portion 520 may include a polyurethane acrylate.

[0190] Since 1-1 cut portion h1-1 and 1-2 cut portion h1-2 are formed simultaneously through the second substrate 120, the second electrode 220, the buffer layer 420, the base 350 and the light conversion unit including the barrier rib, one surface of the adhesive layer 410 can be exposed through 1-1 cut portion h1-1 and 1-2 cut portion h1-2.

[0191] Therefore, the 1-1 sealing part 511 arranged in the 1-1 cutting part h1-1 and the 1-2 sealing part 512 arranged in the 1-2 cutting part h1-2 can contact the adhesive layer 410 in the 1-1 cutting part h1-1 and the 1-2 cutting part h1-2.

[0192] The 1-1 sealing portion 511 disposed within the 1-1 cutting portion h1-1 and the 1-3 cutting portion h1-3 can seal the receiving portion of the light conversion unit 300. That is, the 1-1 sealing portion 511 can seal the light conversion material 330 disposed within the receiving portion 320. In other words, the 1-1 sealing portion 511 can prevent the light conversion material 330 disposed within the receiving portion 320 from leaking, and can also prevent impurities that may penetrate from the outside from penetrating into the light conversion unit 300.

[0193] In addition, the 1-2 sealing part 512 provided in the 1-2 cutting part h1-2 and the 1-4 cutting part h1-4 can prevent leakage of light conversion material during the process of injecting light conversion material into the receiving part 320.

[0194] In other words, the 1-1 cutting section h1-1 in the cutting section can be an injection section for injecting light conversion material into the receiving section 320, and the 1-3 cutting section h1-3 in the cutting section can be an outlet section 320 for moving light conversion material by vacuum suction of the light conversion material injected into the receiving section 320.

[0195] In this case, the light conversion material 330 flowing into the injection section can move in the direction of the 1-2 cutting section h1-2 instead of the direction of the 1-3 cutting section h1-3. Therefore, the light conversion material 330 also flows into the frame area, which may reduce visibility due to the contrast difference between the light conversion area and the frame area.

[0196] Therefore, excessive light conversion material can be prevented from moving into the frame area by additionally setting 1-2 cutting portions h1-2 in the area adjacent to the 1-1 cutting portion h1-1 defined as the injection portion.

[0197] Similarly, the light conversion material 330 moving to the exit section can pass through the 1-3 cutting section h1-3 and move in the direction of the 1-4 cutting section h1-4. Therefore, the light conversion material 330 also flows into the frame area, which may reduce visibility due to the contrast difference between the light conversion area and the frame area.

[0198] Therefore, by providing an additional 1-4 cutting section h1-4 in the area adjacent to the 1-3 cutting section h1-3 defined as the outlet section, excessive light conversion material can be prevented from moving into the frame area.

[0199] Therefore, since the optical path control component according to the embodiment includes a 1-1 sealing part for sealing the light conversion material and a 1-2 sealing part for blocking the movement of the light conversion material, the reliability and visibility of the optical path control component can be improved.

[0200] Figure 9 It is along Figure 1 A cross-sectional view taken by line D-D'. Figure 10 It is along Figure 1 The sectional view taken by line E-E'. That is, Figure 9 This is a cross-sectional view of the two ends of the sealing portion connected to the 1-3 sealing portion 513 and the second sealing portion 520 in the first direction. Figure 10 It is a cross-sectional view of the two ends of the sealing part connected to the sealing part 514 and the second sealing part 520 in the first direction.

[0201] Reference Figure 9 and Figure 10 Cutting sections 1-3 (h1-3) and 2-1 (h2-1) can be connected to each other. Furthermore, cutting sections 1-4 (h1-4) and 2-1 (h2-1) can be connected to each other.

[0202] Furthermore, the 1-3 cutting portion h1-3 and the 1-4 cutting portion h1-4 can be spaced apart from the 2-2 cutting portion h2-2. That is, one end of the 1-3 cutting portion h1-3 and the 1-4 cutting portion h1-4 can be spaced apart from the 2-2 cutting portion h2-2.

[0203] The 1-3 cutting portion h1-3, the 1-4 cutting portion h1-4 and the 2-2 cutting portion h2-2 are spaced apart from each other, so that an opening area formed between the 1-3 cutting portion h1-3, the 1-4 cutting portion h1-4 and the 2-2 cutting portion h2-2 can be formed on the second substrate.

[0204] The electrode connection portion 700 of the second connection region CA2 disposed on the second protrusion PA2 of the second substrate 120 and the second electrode 220 can be connected without disconnection through the second electrode 220 disposed in the opening region OA. That is, the light conversion material 300 disposed in the receiving portion 320 between the first sealing portion 510 and the second sealing portion 520 can receive the current and voltage transmitted through the opening region OA.

[0205] Since the 1-3 cutting section h1-3, the 1-4 cutting section h1-4, and the 2-1 cutting section h2-1 are connected, the 1-3 sealing section 513 and the 1-4 sealing section 514 provided in the 1-3 cutting section h1-3 and the 1-4 cutting section h1-4 can be connected to the second sealing section 520 provided in the 2-1 cutting section h2-1. Furthermore, since the 1-3 cutting section h1-3, the 1-4 cutting section h1-4, and the 2-2 cutting section h2-2 are spaced apart from each other, the first sealing section 511 provided in the 1-3 cutting section h1-3 and the 1-4 cutting section h1-4 can be spaced apart from the second sealing section 520 provided on the 2-2 cutting section h2-2.

[0206] Figure 11 It is along Figure 1 The sectional view taken by line F-F'. That is, Figure 11It is a cross-sectional view taken along the protruding areas of the first substrate and the second substrate.

[0207] Reference Figure 11 The first protrusion PA1 of the first substrate 110 and the second protrusion PA2 of the second substrate 120 can be spaced apart from each other. That is, the first protrusion PA1 of the first substrate 110 and the second protrusion PA2 of the second substrate 120 can be spaced apart from each other in the first direction 1A.

[0208] Therefore, the first substrate 110, the first electrode 210, and the adhesive layer 410 may not be disposed below the second protrusion PA2.

[0209] Therefore, since the first connecting region CA1 provided on the first protrusion PA1 and the second connecting region CA2 provided on the second protrusion PA2 are physically separated from each other, it is possible to prevent the first connecting region CA1 and the second connecting region CA2 from being electrically connected to each other through the adhesive layer.

[0210] A first connection region CA1 may be disposed on a first protrusion PA1. A first electrode 210 may be exposed in the first connection region CA1. That is, since the first electrode 210 on the first substrate 110 is exposed by partially removing the adhesive layer 410 on the first protrusion PA1, the upper surface of the first electrode 210 may be exposed in the first connection region CA1. In other words, the first electrode 210 exposed in the first connection region CA1 may be a first connection electrode connected to an external printed circuit board or a flexible printed circuit board.

[0211] Furthermore, a second connection region CA2 may be provided on the second protrusion PA2. A third cut portion h3 may be formed in the second connection region CA2. An electrode connection portion 700 containing conductive material may be provided within the third cut portion h3.

[0212] The electrode connection portion 700 may include a material different from that of at least one of the first electrode 210 and the second electrode 220. Furthermore, the light transmittance of the electrode connection portion 700 may be less than that of at least one of the first electrode 210 and the second electrode 220.

[0213] For example, the electrode connection portion 700 may include metal. Specifically, the electrode connection portion 700 may include a metal paste in which metal particles are dispersed in an adhesive.

[0214] The electrode connection portion 700 can contact the side surface of the second substrate 120. Furthermore, the electrode connection portion 700 can contact the side surface of the second electrode 220. Furthermore, the electrode connection portion 700 can contact the side surface of the buffer layer 420. Furthermore, the electrode connection portion 700 can contact the side surface of the base 350. Furthermore, the electrode connection portion 700 can contact the side surface of the barrier rib 310.

[0215] In other words, the electrode connection portion 700 can contact the side surface of at least one of the second substrate 120, the second electrode 220, the buffer layer 420, the base portion 350, and the barrier rib portion 310.

[0216] Furthermore, a protective layer can be provided on the lower surface of the electrode connection portion. This prevents oxidation or deterioration of the electrode connection portion exposed to the outside.

[0217] The upper surface of the electrode connection portion 700 may be disposed on the same plane as the upper surface of the second substrate 120 or may be disposed below the upper surface of the second substrate 120. For example, the upper surface of the electrode connection portion 700 may be disposed on the same plane as the upper surface of the second substrate 120. Alternatively, the upper surface of the electrode connection portion 700 may be disposed below the upper surface of the second substrate 120.

[0218] Therefore, the upper surface of the electrode connection portion 700 and the upper surface of the second substrate 120 are formed on the same plane without any step difference, or a step difference may be provided so that the upper surface of the electrode connection portion 700 is lower.

[0219] Therefore, since the total thickness of the optical path control component is prevented from increasing due to the height of the electrode connection portion 700, the total thickness of the optical path control component can be reduced.

[0220] Since the electrode connection portion 700 is electrically connected to the second electrode 220, the electrode connection portion 700 can be exposed to the outside of the second substrate 120. That is, the electrode connection portion 700 can be exposed to the second protrusion PA2 of the second substrate 120. In other words, the upper surface of the electrode connection portion 700 can be exposed in the second connection region CA2.

[0221] Therefore, the electrode connection portion 700 exposed in the second connection region CA2 can be a second connection electrode connected to an external printed circuit board or a flexible printed circuit board.

[0222] Therefore, the first electrode 210 and the second electrode 220 are respectively connected to the same printed circuit board or flexible printed circuit board through the first connection electrode of the first connection region and the second connection electrode of the second connection region, and the first electrode 210 and the second electrode 220 can be electrically connected to each other.

[0223] In this case, since the first connecting electrode and the second connecting electrode are disposed on the same surface, they can be easily connected when connecting the first connecting electrode and the second connecting electrode to a printed circuit board.

[0224] Alternatively, the first electrode 210 and the second electrode 220 can be connected to different printed circuit boards or flexible printed circuit boards via a first connection electrode in the first connection region and a second connection electrode in the second connection region, respectively, and the first electrode 210 and the second electrode 220 can be electrically connected to each other. That is, the first connection electrode can be connected to the first circuit board, and the second connection electrode can be connected to a second circuit board different from the first circuit board.

[0225] Figure 12 It is along Figure 1 A cross-sectional view taken by line G-G'. Figure 13 It is along Figure 1 The cross-sectional view taken by line H-H'. That is, Figure 12 It is a sectional view taken along the direction of the receiving part. Figure 13 It is a sectional view taken along the direction of the barrier rib.

[0226] Reference Figure 12 The light conversion material 330 can be disposed within the receiving portion 320. Specifically, the light conversion material 330, the 1-1 sealing portion 511, the 1-2 sealing portion 512, the 1-3 sealing portion 513, and the 1-4 sealing portion 514 can be disposed within the receiving portion 320.

[0227] Sealing part 511 (1-1) and sealing part 513 (1-3) are provided at one end and the other end of the receiving part 320 in the second direction 2A, and seal the light conversion material 330 provided in the receiving part 320.

[0228] Since the light conversion material 330 inside the housing 320 is sealed by the 1-1 sealing part 511 and the 1-3 sealing part 513, leakage to the outside of the optical path control component can be prevented.

[0229] Additionally, sealing portions 1-2 512 and 1-4 514 can be disposed in areas adjacent to sealing portions 1-1 511 and 1-3 513. When the light conversion material 330 is injected, sealing portions 1-2 512 and 1-4 514 prevent the light conversion material 330 from moving outward from sealing portions 1-2 512 and 1-4 514.

[0230] The mixing region 810 can be formed in the region between the 1-1 sealing part 511 and the 1-2 sealing part 512 and the region between the 1-3 sealing part 513 and the 1-4 sealing part 514.

[0231] The mixing region 810 can be defined as the region where the light conversion material 330 moving in the direction of the 1-2 sealing part 512 and the 1-4 sealing part 514 mixes with the sealing material.

[0232] Furthermore, the dam section 600 can be located outside the sealing sections 514 of sections 1-4. The dam section 600 can also be located inside the receiving section 320.

[0233] The dam section 600 can contact the 1-4 sealing sections 514 inside the receiving section 320.

[0234] When the light conversion material 330 is injected into the receiving portion 320, the dam portion 600 controls the injection length of the light conversion material, and the dam portion 600 can prevent the light conversion material 330 from overflowing to the outside of the dam (i.e., to the electrode connection portion 700).

[0235] Reference Figure 13 The barrier rib 310 is provided in the region corresponding to the barrier rib 310, and the barrier rib can be completely removed from the second substrate to form the 1-1 sealing part 511, the 1-2 sealing part 512, the 1-3 sealing part 513 and the 1-4 sealing part 514.

[0236] In other words, sealing part 511 (1-1), sealing part 512 (1-2), sealing part 513 (1-3), and sealing part 514 (1-4) can be provided in the area where the barrier ribs are provided. Therefore, the area of ​​sealing part 511 (1-1), sealing part 512 (1-2), sealing part 513 (1-3), and sealing part 514 (1-4) can be increased to increase the size of the removed barrier ribs.

[0237] Therefore, even without increasing the thickness of sealing portions 1-1 511, 1-2 512, 1-3 513, and 1-4 514, the area of ​​sealing portions 1-1 511, 1-2 512, 1-3 513, and 1-4 514 can be increased. Furthermore, since the contact area of ​​sealing portions 1-1 511, 1-2 512, 1-3 513, and 1-4 514 is increased, the adhesion of the first sealing portion can be improved.

[0238] Therefore, the sealing properties of the light conversion material can be improved by sealing part 511 (1-1), sealing part 512 (1-2), sealing part 513 (1-3), and sealing part 514 (1-4).

[0239] According to the first embodiment, the optical path control component may include a 1-1 cut portion, a 1-2 cut portion, a 1-3 cut portion, and a 1-4 cut portion formed on the second substrate by passing through the second substrate, the second electrode, the buffer layer, and all or part of the optical conversion unit.

[0240] In addition, sealing parts 1-1, 1-2, 1-3 and 1-4 can be respectively provided in cutting parts 1-1, 1-2, 1-3 and 1-4.

[0241] The sealing portions 1-1 and 1-3, located within the cutting portions 1-1 and 1-3, can seal the receiving portion of the light conversion unit 300. That is, the sealing portions 1-1 and 1-3 can prevent impurities that may penetrate from the outside from penetrating into the light conversion unit, while also preventing the light conversion material contained in the receiving portion from leaking to the outside.

[0242] In addition, the sealing parts 1-2 and 1-4 provided in the cutting parts 1-2 and 1-4 can prevent leakage of light conversion material during the process of injecting light conversion material into the receiving part.

[0243] Therefore, since the optical path control component according to the embodiment includes sealing portions 1-1 and 1-2 for sealing the light conversion material and sealing portions 1-2 and 1-4 for preventing the light conversion material from moving, the reliability and visibility of the optical path control component can be improved.

[0244] The first sealing part and the second sealing part can be configured to seal the injection part and the outlet part of the accommodating part containing the light conversion material, and can extend along the side surface region of the light conversion unit (i.e., the side surface region in the first direction).

[0245] Therefore, the first sealing part can prevent the light conversion material inside the accommodating part from leaking out of the light conversion unit. Furthermore, the first and second sealing parts can prevent impurities from penetrating into the light conversion unit from the outside, thereby improving the reliability of the optical path control components.

[0246] Furthermore, since the first sealing portion and the second sealing portion are disposed within the cut portion formed on the second substrate, compared to forming the first sealing portion and the second sealing portion outside the light conversion unit, the size of the optical path control component can be reduced, and the material of the sealing portion can be prevented from deteriorating due to the external environment, thereby improving the sealing performance of the optical path control component.

[0247] Furthermore, in the optical path control member according to the first embodiment, the first connecting electrode may be disposed on a first protrusion formed on the first substrate, and the second connecting electrode may be disposed on a second protrusion formed on the second substrate.

[0248] The first and second protrusions may protrude only as much as the areas where the first and second connecting electrodes can be formed, without fully protruding from the surfaces of the first and second substrates.

[0249] Therefore, the area of ​​the first and second protrusions can be reduced. Thus, when the optical path control component is combined with the display panel and applied to the display device, other components of the display device can be placed in areas that do not correspond to the first and second protrusions, thereby reducing the bezel area of ​​the display device.

[0250] In other words, the optical path control component according to the first embodiment reduces the size of the frame area where the connecting electrodes are provided, thereby also reducing the frame area of ​​the display device to which the optical path control component is applied.

[0251] In the following text, reference will be made to Figures 14 to 18 The optical path control component according to the second embodiment is described.

[0252] In the description of the optical path control component according to the second embodiment, the description of elements that are the same as or similar to those in the optical path control component according to the first embodiment is omitted, and the same reference numerals are assigned to the same components.

[0253] Reference Figures 15 to 17 In the optical path control component according to the second embodiment, unlike the first embodiment described above, the receiving portion 320 of the optical conversion unit can be tilted at a constant angle.

[0254] Reference Figures 14 to 17 The receiving portion 320 can extend in a direction different from the first direction 1A and the second direction 2A.

[0255] Therefore, at least one end of the receiving portion 320 can contact the first sealing portion 510, and at least one end of the receiving portion can contact the first sealing portion 510 and the second sealing portion 520.

[0256] When the optical path control component is combined with the display panel to form a display device, since the receiving portion is tilted and set at a predetermined tilt angle, the moiré effect caused by the overlap between the receiving portion of the optical path control component and the pattern portion of the display panel can be prevented.

[0257] In other words, one end and the other end of the receiving portion 320 according to the second embodiment can be formed on both the outer surface of the optical path control member in the first direction and the outer surface in the second direction.

[0258] Figure 18 It is along Figure 14 and Figure 17 The sectional view taken by line I-I'. That is, Figure 18 It is a cross-sectional view of a housing part of the optical path control component cut along the tilt angle direction.

[0259] Reference Figure 18 The light conversion material 330 can be disposed within the receiving portion 320. Specifically, the light conversion material 330, the 1-1 sealing portion 511, the 1-2 sealing portion 512, the 1-3 sealing portion 513, and the 1-4 sealing portion 514 can be disposed within the receiving portion 320.

[0260] Sealing part 511 (1-1) and sealing part 513 (1-3) can be provided at one end and the other end of the receiving part 320 in the second direction, and seal the light conversion material 330 provided in the receiving part 320.

[0261] The light conversion material 330 inside the receiving part 320 is sealed by the 1-1 sealing part 511 and the 1-3 sealing part 513, thereby preventing the light conversion material 330 from leaking out of the optical path control component.

[0262] Additionally, sealing portion 512 (1-2) can be disposed in the region adjacent to sealing portion 511 (1-1), and sealing portion 514 (1-4) can be disposed in the region adjacent to sealing portion 513 (1-3). When light conversion material 330 is injected, sealing portions 512 (1-2) and 514 (1-4) can prevent light conversion material 330 from moving to the outside of sealing portions 512 (1-2) and 514 (1-4).

[0263] The mixing region 810 can be formed in the region between the 1-1 sealing part 511 and the 1-2 sealing part 512, and in the region between the 1-3 sealing part 513 and the 1-4 sealing part 514.

[0264] The mixing region 810 can be defined as the region where the light conversion material 330 moving in the direction of the 1-2 sealing part 512 and the 1-4 sealing part 514 mixes with the sealing material.

[0265] Furthermore, the dam section 600 can be located outside the sealing sections 514 of sections 1-4. The dam section 600 can also be located inside the receiving section 320.

[0266] The dam section 600 can contact the 1-2 sealing sections 512 inside the receiving section 320.

[0267] When the light conversion material 330 is injected into the receiving portion 320, the dam portion 600 controls the injection length of the light conversion material, and the dam portion 600 can prevent the light conversion material 330 from overflowing to the outside of the dam (i.e., to the electrode connection portion 700).

[0268] In the following text, reference will be made to Figures 19 to 21 Describes an optical path control component according to other embodiments.

[0269] Figure 19 This is a perspective view of the optical path control component according to the third embodiment. Figure 20 This is a perspective view of the optical path control component according to the fourth embodiment. Figure 21 This is a perspective view of the optical path control component according to the fifth embodiment.

[0270] Reference Figure 19 In the optical path control component according to the third embodiment, a bridging portion b may be formed on one of the sealing portions 1-2 and 1-4.

[0271] For example, multiple bridging portions b can be provided in the 1-2 sealing portions 512, which are provided in the 1-2 cutting portions h1-2 adjacent to the 1-1 cutting portion h1-1 defined as the injection portion.

[0272] The bridging portion b can be defined as an area where one surface of the second substrate is exposed, specifically an area where no cut portion is formed. Therefore, the 1-2 sealing portions 512 can include sub-sealing portions spaced apart from each other. That is, the 1-2 sealing portions 512 can be defined as an assembly of sub-sealing portions spaced apart from each other by the width of the bridging portion b.

[0273] When the first substrate 110 and the second substrate 120 are laminated, they can be easily laminated through the bridging portion b.

[0274] Specifically, the bridging portion is provided on the outermost 1-2 cut portions among the multiple cut portions formed on the second substrate, thereby fixing the second substrate and facilitating alignment with the first substrate.

[0275] In addition, after the first substrate and the second substrate are bonded together, it can prevent the first substrate and the second substrate from delaminating during processing due to the insufficient thickness of the lower part of the second substrate.

[0276] Furthermore, during the process of injecting light conversion material after the first substrate and the second substrate are bonded, it is possible to prevent the 1-2 cut sections from separating due to the pressure of the ink injection device.

[0277] In other words, since the bridging portion provided in the 1-2 cutting section can alleviate the reduction in strength of the second substrate caused by the 1-2 cutting section, it can be beneficial to the manufacturing process and improve the reliability of the optical path control component.

[0278] Referring to 20, in the optical path control component according to the fourth embodiment, sealing parts 1-2 and 1-4 can be omitted.

[0279] In other words, after the optical path control component is finally manufactured, the 1-2 sealing part and the 1-4 second sealing part, which prevent the light conversion material from moving, are removed in the final process, so that the optical path control component can include only the 1-1 sealing part.

[0280] Therefore, the size of the frame area of ​​the optical path control component can be reduced.

[0281] Reference Figure 21 The optical path control component according to the fifth embodiment may further include a fourth cutting portion h4. Specifically, the aforementioned dam portion 600 may be disposed within the fourth cutting portion h4.

[0282] In other words, like the sealing portion, the dam portion 600 can be provided within the cutting portion formed on the second substrate 120.

[0283] Therefore, the height of the dam can be increased, and since the dam is located inside the cutting section, the supporting force of the dam can be increased, thereby effectively preventing the light conversion material from overflowing to the outside during the process of injecting the light conversion material.

[0284] At the same time, despite Figure 21 The 1-1 sealing part 511, 1-2 sealing part 512, 1-3 sealing part 513 and 1-4 sealing part 514 are shown, but the embodiment is not limited thereto, and the optical path control member according to the fifth embodiment may omit the 1-2 sealing part 512 and the 1-4 sealing part 514, and may include only the 1-1 sealing part 511 and the 1-3 sealing part 513.

[0285] In the following text, reference will be made to Figure 22 and Figure 23 Describes the optical path control component according to the sixth embodiment.

[0286] In the description of the optical path control component according to the sixth embodiment, the description of elements that are the same as or similar to the optical path control components according to the first to fifth embodiments described above is omitted, and the same reference numerals are assigned to the same components.

[0287] Reference Figure 22 and Figure 23 According to the sixth embodiment, the optical path control component may include a first sealing portion 510 extending in a first direction of the optical path control component and a second sealing portion 520 extending in a second direction of the optical path control component.

[0288] The first sealing portion 510 may be disposed at both ends of the optical path control member in the second direction. For example, the first sealing portion 510 may include a 1-1 sealing portion 511 disposed at one end of the optical path control member in the second direction and a 1-3 sealing portion 513 disposed at the other end of the optical path control member in the second direction. That is, unlike the above embodiments, the optical path control member according to the sixth embodiment may not include the 1-2 sealing portion 512 and the 1-4 sealing portion 514. That is, similar to the fourth embodiment described above, the optical path control member according to the sixth embodiment may only include the 1-1 sealing portion 511 and the 1-3 sealing portion 513.

[0289] Furthermore, the second sealing portion 520 may be disposed at both ends of the optical path control member in the first direction. For example, the second sealing portion 520 may include a 2-1 sealing portion 521 disposed at one end of the optical path control member in the first direction and a 2-2 sealing portion 522 disposed at the other end of the optical path control member in the second direction.

[0290] The first sealing portion 510 and the second sealing portion 520 can be formed by disposing a sealing material in a cut portion formed on the second substrate 120.

[0291] Furthermore, the optical path control component may include a dam portion 600. That is, similar to the fifth embodiment described above, the optical path control component according to the sixth embodiment may also include a fourth cutting portion h4, and the aforementioned dam portion may be disposed within the fourth cutting portion h4.

[0292] Therefore, the height of the dam can be increased, and since the dam is located inside the cutting section, the supporting force of the dam can be increased, thereby effectively preventing the light conversion material from overflowing to the outside during the process of injecting the light conversion material.

[0293] Figure 23 It is along Figure 22 The cross-sectional view taken by line J-J'. That is, Figure 23 It is a sectional view taken along the longitudinal direction of one of the multiple receiving parts.

[0294] Reference Figure 23 The light conversion material 330 can be disposed within the receiving portion 320. In addition, the 1-1 sealing portion 511 can be disposed at one end of the receiving portion 320, and the 1-3 sealing portion 513 can be disposed at the other end of the receiving portion 320.

[0295] The sealing portion 511 (1-1) and the sealing portion 513 (1-3) can be disposed within the cut portion formed on the second substrate.

[0296] For example, a cutting portion is formed on the second substrate by sequentially penetrating the second substrate 120, the second electrode 220, the buffer layer 420, the base 350, and the light conversion unit 300 including the barrier rib, and a first sealing portion 510 can be formed by providing a sealing material in the cutting portion.

[0297] Therefore, the first sealing portion 510 can contact the side surface of the second substrate 120. Furthermore, the first sealing portion 510 can contact the side surface of the second electrode 220. Furthermore, the first sealing portion 510 can contact the side surface of the buffer layer 420. Furthermore, the first sealing portion 510 can contact the side surface of the base 350. Furthermore, the first sealing portion 510 can contact the side surface of the barrier rib 310.

[0298] The first sealing part 510 is provided at one end and the other end of the receiving part, thereby sealing the light conversion material 330 provided in the receiving part 320.

[0299] For example, before forming the 1-1 sealing portion 511 and the 1-3 sealing portion 513, the interior of the cut portion of the 1-1 sealing portion 511 is defined as the injection portion of the receiving portion, and the interior of the cut portion of the 1-3 sealing portion 513 can be defined as the outlet portion of the receiving portion. Subsequently, light conversion material is injected through the injection portion and vacuum-drawn through the outlet portion, thereby allowing the light conversion material 330 to be disposed within the receiving portion.

[0300] Subsequently, by forming a 1-1 sealing portion 511 and a 1-3 sealing portion 513 at the injection portion and the outlet portion, one end and the other end of the receiving portion 320 are sealed, thereby sealing the light conversion material 330 inside the receiving portion 320.

[0301] At this time, there may be residual light conversion material after the injection process in the injection section and the outlet section. Therefore, at least one of the 1-1 sealing section 511 and the 1-3 sealing section 513 may include both light conversion material and sealing material. That is, at least one of the 1-1 sealing section 511 and the 1-3 sealing section 513 is formed by mixing sealing material and light conversion material, or may include sealing material and light conversion material in a phase-separated state.

[0302] In other words, such as Figure 23 As shown, after the light conversion material 330 is injected into the receiving part 320, before the sealing material for sealing the light conversion material 330 is filled in, some light conversion material may remain in the injection part and the outlet part.

[0303] In this case, when the sealing material is formed in the injection section and the outlet section, the light conversion material remaining in the injection section and the outlet section can be mixed with the sealing material, so that the light conversion material can be partially mixed in at least one of the 1-1 sealing section 511 and the 1-3 sealing section 513 formed by curing the sealing material.

[0304] Therefore, at least one of the 1-1 sealing portion 511 and the 1-3 sealing portion 513 may include sealing material 510a and light conversion material 330. For example, at least one of the 1-1 sealing portion 511 and the 1-3 sealing portion 513 may include unmixed and separated sealing material 510a and light conversion material 330, or may include sealing material 510a, light conversion material 330, and a mixed material 510b containing sealing material 510a and light conversion material 330.

[0305] In this case, at least one of the sealing portions 511 (1-1) and 513 (1-3) may contain sealing material exceeding the amount of light conversion material. Specifically, the content of the light conversion material may be less than 10% relative to the total material, which is the sum of the light conversion material and the sealing material. More specifically, the content of the light conversion material may be from 0.01% to 10% relative to the total material. More specifically, the content of the light conversion material may be from 1% to 8% relative to the total material. More specifically, the content of the light conversion material may be from 3% to 5% relative to the total material.

[0306] When the content of light conversion material exceeds 10% relative to the total material of the sealing part, the curing characteristics of the sealing part decrease, which may reduce the sealing performance of the first and second sealing parts of the sealing housing. Therefore, external impurities may flow into the housing or the light conversion material inside the housing may leak to the outside, which may reduce the reliability of the optical path control component.

[0307] Furthermore, when the amount of light conversion material is less than 0.01% of the total material of the sealing part, the sealing part may not have any light conversion characteristics, which may reduce the light conversion area of ​​the optical path control component.

[0308] In other words, in the optical path control member according to the first embodiment, since the sealing portion contains more than 0.01% light-converting material that forms light-converting properties relative to the total material of the sealing portion, a transmission mode and a light-blocking mode can be achieved by applying a voltage to all or part of the area where the first sealing portion is provided. Therefore, since a portion of the first sealing portion area defined as the frame area in the optical path control member can be used as an effective area with light-converting properties as needed, the optical path control member can be driven in different modes under different environments and applications.

[0309] In the following text, reference will be made to Figures 24 to 26 The optical path control component according to the seventh embodiment is described.

[0310] In the description of the optical path control component according to the seventh embodiment, the description of elements that are the same as or similar to the optical path control components according to the first to sixth embodiments described above is omitted, and the same reference numerals are assigned to the same components.

[0311] Reference Figure 24 and Figure 25 In the optical path control component according to the seventh embodiment, unlike the sixth embodiment previously described, the receiving portion 320 of the optical conversion unit can be tilted at a certain angle.

[0312] Reference Figure 24 and Figure 25 The receiving portion 320 can extend in a direction different from the first direction 1A and the second direction 2A.

[0313] Therefore, at least one end of the receiving portion 320 can contact the first sealing portion 510, and at least one end of the receiving portion can contact the first sealing portion 510 and the second sealing portion 520.

[0314] When the optical path control component is combined with the display panel to form a display device, the moiré effect caused by the overlap between the receiving part of the optical path control component and the pattern part of the display panel can be prevented because the receiving part of the optical path control component is tilted and set at a predetermined tilt angle.

[0315] In other words, one end and the other end of the receiving portion 320 according to the seventh embodiment can be formed on both the outer surface in the first direction and the outer surface in the second direction of the optical path control member.

[0316] Figure 26 It is along Figure 24 and Figure 25 A sectional view taken by line K-K'.

[0317] Reference Figure 26 The light conversion material 330 can be disposed within the receiving portion 320. Furthermore, the first sealing portion 510 can be disposed at one end of the receiving portion 320, and the second sealing portion 520 can be disposed at the other end.

[0318] At least one of the first sealing portion 510 and the second sealing portion 520 may include a light conversion material and a sealing material. That is, at least one of the first sealing portion 510 and the second sealing portion 520 may be formed by mixing a sealing material and a light conversion material, or may include a sealing material and a light conversion material in a phase-separated state.

[0319] In other words, such as Figure 26 As shown, after the light conversion material 330 is injected into the receiving part 320, before the sealing material for sealing the light conversion material 330 is filled in, some light conversion material may remain in the injection part and the outlet part.

[0320] In this case, when the sealing material is formed in the injection section and the outlet section, the light conversion material remaining in the injection section and the outlet section can be mixed with the sealing material, so that the light conversion material can be partially mixed in the 1-1 sealing section 511 formed by curing the sealing material.

[0321] Furthermore, in the region adjacent to the second sealing portion 520, a portion of the light conversion material also moves in the direction of the second sealing portion, so that the light conversion material can be partially mixed in the second sealing portion 520 formed by curing the sealing material.

[0322] Therefore, at least one of the first sealing portion 510 and the second sealing portion 520 may include sealing material 510a and light conversion material 330. For example, at least one of the first sealing portion 510 and the second sealing portion 520 may include unmixed and separated sealing material 510a and light conversion material 330, or may include sealing material 510a, light conversion material 330 and a mixed material 510b containing sealing material 510a and light conversion material 330.

[0323] In this case, at least one of the first sealing portion 510 and the second sealing portion 520 may contain sealing material exceeding the amount of light conversion material. Specifically, the content of light conversion material may be less than 10% relative to the total material, which is the sum of the light conversion material and the sealing material. More specifically, the content of light conversion material may be from 0.01% to 10% relative to the total material. More specifically, the content of light conversion material may be from 1% to 8% relative to the total material. More specifically, the content of light conversion material may be from 3% to 5% relative to the total material.

[0324] When the content of light conversion material exceeds 10% relative to the total material of the sealing part, the curing characteristics of the sealing part decrease, which may reduce the sealing performance of the first and second sealing parts of the sealing housing. Therefore, external impurities may flow into the housing or the light conversion material inside the housing may leak to the outside, which may reduce the reliability of the optical path control component.

[0325] Furthermore, when the amount of light conversion material is less than 0.01% of the total material of the sealing part, the sealing part may not have any light conversion characteristics, which may reduce the light conversion area of ​​the optical path control component.

[0326] In other words, in the optical path control member according to the seventh embodiment, since the sealing portion contains more than 0.01% light-conversion material that forms light conversion characteristics relative to the total material of the sealing portion, a transmission mode and a light-blocking mode can be achieved by applying a voltage to all or part of the area where the first and / or second sealing portions are provided. Therefore, since a portion of the area of ​​the first and / or second sealing portion defined as the frame area in the optical path control member can be used as an effective area with light conversion characteristics as needed, the optical path control member can be driven in different modes under different environments and applications.

[0327] In the following text, reference will be made to Figures 27 to 31 This describes a display device that utilizes an optical path control component according to an embodiment.

[0328] Reference Figures 27 to 28 According to the embodiment, the optical path control component 1000 can be disposed above or below the display panel 2000.

[0329] The display panel 2000 and the optical path control component 1000 can be configured to be bonded to each other. For example, the display panel 2000 and the optical path control component 1000 can be bonded to each other via an adhesive layer 1500. The adhesive layer 1500 can be transparent. For example, the adhesive layer 1500 can include an adhesive or adhesive layer containing an optically transparent adhesive material.

[0330] The adhesive layer 1500 may include a release film. Specifically, when bonding the optical path control component to the display panel, the optical path control component and the display panel can be bonded after the release film is removed.

[0331] The display panel 2000 may include a first substrate 2100 and a second substrate 2200. When the display panel 2000 is a liquid crystal display panel, the light path control member may be formed below the liquid crystal panel. That is, when the surface viewed by the user in the liquid crystal panel is defined as the upper part of the liquid crystal panel, the light path control member may be disposed below the liquid crystal panel. The display panel 2000 may be formed with the following structure: a first substrate 2100 including thin film transistors (TFTs) and pixel electrodes and a second substrate 2200 including a color filter layer are bonded to each other, and a liquid crystal layer is interposed between them.

[0332] Furthermore, the display panel 2000 can be a liquid crystal display panel with a color filter on transistor (COT) structure. In the COT structure, thin-film transistors, color filters, and a black electrolyte are formed on a first substrate 2100, and a second substrate 2200 is bonded to the first substrate 2100, with a liquid crystal layer interposed between them. That is, thin-film transistors can be formed on the first substrate 2100, a protective film can be formed on the thin-film transistors, and a color filter layer can be formed on the protective film. Additionally, pixel electrodes that contact the thin-film transistors can be formed on the first substrate 2100. In this case, to improve the aperture ratio and simplify the masking process, the black electrolyte can be omitted, and a common electrode can be formed to serve as the black electrolyte.

[0333] In addition, when the display panel 2000 is a liquid crystal display panel, the display device may also include a backlight unit 3000 that provides light from the rear surface of the display panel 2000.

[0334] In other words, such as Figure 27 As shown, the light path control component can be disposed below the liquid crystal panel and on the backlight unit 3000, and the light path control component can be disposed between the backlight unit 3000 and the display panel 2000.

[0335] Or, such as Figure 28As shown, when the display panel 2000 is an organic light-emitting diode (OLED) panel, a light path control component can be formed on the OLED panel. That is, when the surface seen by the user in the OLED panel is defined as the upper part of the OLED panel, the light path control component can be disposed on the OLED panel. The display panel 2000 may include self-emissive elements that do not require a separate light source. In the display panel 2000, thin-film transistors can be formed on the first substrate 2100, and organic light-emitting elements in contact with the thin-film transistors can be formed. The organic light-emitting element may include an anode, a cathode, and an organic light-emitting layer formed between the anode and the cathode. Furthermore, a second substrate 2200 configured as a packaging substrate for encapsulation may be further included on the organic light-emitting element.

[0336] Furthermore, although not shown in the accompanying drawings, a polarizing plate may be further disposed between the optical path control member 1000 and the display panel 2000. The polarizing plate may be a linear polarizing plate or a polarizing plate that prevents reflection of external light. For example, when the display panel 2000 is a liquid crystal display panel, the polarizing plate may be a linear polarizing plate. Furthermore, when the display panel 2000 is an organic light-emitting display panel, the polarizing plate may be a polarizing plate that prevents reflection of external light.

[0337] Furthermore, an additional functional layer 1300, such as an anti-reflection layer or an anti-glare layer, can be further provided on the optical path control member 1000. Specifically, the functional layer 1300 can be bonded to one surface of the first substrate 110 of the optical path control member. Although not shown in the figures, the functional layer 1300 can be bonded to the first substrate 110 of the optical path control member via an adhesive layer. Additionally, a release film for protecting the functional layer can be further provided on the functional layer 1300.

[0338] In addition, a touch panel can be further installed between the display panel and the optical path control components.

[0339] Although the accompanying drawings show the light path control component disposed at the upper part of the display panel, the embodiment is not limited thereto, and the light path control component can be disposed in various positions, such as a light-adjustable position, i.e., the lower part of the display panel, or between the second substrate and the first substrate of the display panel, etc.

[0340] Furthermore, the accompanying drawings show that the light conversion unit of the light path control member according to the embodiment is in a direction parallel or perpendicular to the outer surface of the second substrate; however, the light conversion unit is formed to be tilted at a predetermined angle to the outer surface of the second substrate. This reduces moiré patterns occurring between the display panel and the light path control member.

[0341] Reference Figures 29 to 31 The optical path control component according to the embodiment can be applied to various display devices.

[0342] Reference Figures 29 to 31 The optical path control component according to the embodiment can be applied to a display device displaying a display section.

[0343] For example, such as Figure 29 As shown, when electricity is applied to the optical path control member, the receiving portion acts as a light-transmitting portion, thereby enabling the display device to be driven in an open mode, and as... Figure 30 As shown, when no power is applied to the optical path control member, the receiving part serves as a light-shielding part, thereby enabling the display device to be driven in a light-shielding mode.

[0344] Therefore, users can easily drive the display device in either privacy or normal mode depending on the amount of power applied.

[0345] Light emitted from the backlight unit or the self-emissive element can move from the first substrate to the second substrate. Alternatively, light emitted from the backlight unit or the self-emissive element can also move from the second substrate to the first substrate.

[0346] In addition, refer to Figure 31 The display device that uses the optical path control component according to the embodiment can also be applied to the interior of a vehicle.

[0347] For example, a display device including the optical path control component according to an embodiment can display video confirmation information of the vehicle and the vehicle's movement route. The display device can be disposed between the driver's seat and the passenger seat of the vehicle.

[0348] Furthermore, the optical path control component according to the embodiment can be applied to an instrument panel that displays vehicle speed, engine, alarm signals, etc.

[0349] Furthermore, the optical path control component according to the embodiment can be applied to the windshield (FG) or left and right windows of a vehicle.

[0350] The features, structures, effects, etc., described in the above embodiments are included in at least one embodiment of the present invention, but are not limited to one embodiment. Furthermore, those skilled in the art can combine or modify the features, structures, and effects shown in each embodiment with respect to other embodiments. Therefore, it should be understood that such combinations and modifications are included within the scope of the present invention.

[0351] Furthermore, while the embodiments have been primarily described above, these embodiments are merely examples and do not limit the invention. Those skilled in the art will understand that numerous variations and applications not explicitly stated above can be made without departing from the essential characteristics of the invention. For example, changes can be made to the various components specifically represented in the embodiments. Moreover, it should be understood that differences associated with such changes and applications are included within the scope of the invention as defined in the appended claims.

Claims

1. An optical path control component, comprising: A first substrate, on which a first direction and a second direction are defined; The first electrode is disposed on the first substrate; A second substrate is disposed on the first substrate and has the first direction and the second direction defined thereon; The second electrode is disposed under the second substrate; as well as The light conversion unit is disposed between the first electrode and the second electrode. The second substrate and the second electrode include a cut portion that penetrates through the second substrate and the second electrode. The cutting section includes: Cutting portions 1-1 and 1-3 are configured to face each other in the second direction; Cutting section 1-2, adjacent to and spaced apart from cutting section 1-1; and Cutting section 1-4 is adjacent to and spaced apart from cutting section 1-3. The 1-1 cutting section and the 1-3 cutting section are respectively provided with a 1-1 sealing section and a 1-3 sealing section. Specifically, the 1-2 cutting section and the 1-4 cutting section are respectively provided with the 1-2 sealing section and the 1-4 sealing section. The cutting portions 1-1 to 1-4 are all arranged longitudinally along the first direction. The cutting portion 1-1 is located further inward than the cutting portion 1-2, and the cutting portion 1-3 is located further inward than the cutting portion 1-4.

2. The optical path control component according to claim 1 further includes a buffer layer disposed between the second electrode and the optical conversion unit. in, The light conversion unit includes multiple barrier ribs, multiple receiving portions, and a base. Wherein, at least one of the 1-1 cutting portion, the 1-2 cutting portion, the 1-3 cutting portion and the 1-4 cutting portion penetrates the buffer layer and the base.

3. The optical path control component according to claim 2 further includes an adhesive layer disposed between the first electrode and the optical conversion unit. in, At least one of the sealing portions 1-1, 1-2, 1-3, and 1-4 is configured to be in direct contact with the adhesive layer.

4. The optical path control component according to claim 1, wherein, The light conversion unit includes multiple receiving portions and multiple barrier ribs. The 1-1 sealing part and the 1-3 sealing part are disposed at one end and the other end of the receiving part.

5. The optical path control component according to claim 4, wherein, At least one of the 1-1 sealing portion, the 1-2 sealing portion, the 1-3 sealing portion, and the 1-4 sealing portion includes a bridging portion that exposes one surface of the second substrate.

6. The optical path control component according to claim 5, wherein, The sealing parts 1-2 are provided with multiple bridging parts.

7. The optical path control component according to claim 5, wherein, The 1-2 sealing parts include a plurality of sub-sealing parts spaced apart from each other.

8. The optical path control component according to claim 4, wherein, A dam portion is provided in the receiving portion, which is configured to contact the sealing portions 1-4.

9. The optical path control component according to claim 1, wherein, A light conversion material is provided between the 1-1 sealing part and the 1-2 sealing part or between the 1-3 sealing part and the 1-4 sealing part.

10. The optical path control component according to claim 4, wherein, An opening region is formed on the second substrate.

11. The optical path control component according to claim 10, wherein, The cutting portion further includes a 2-1 cutting portion and a 2-2 cutting portion arranged to face each other in the first direction, wherein the opening region is formed in the region between the 1-3 cutting portion and the 2-2 cutting portion and in the region between the 1-4 cutting portion and the 2-2 cutting portion.

12. The optical path control component according to claim 10, wherein, With the aid of the opening region, current and voltage are transmitted to the receiving portion through the second electrode.

13. The optical path control component according to claim 1, wherein, At least one of the sealing portions 1-1 and 1-2 contains more sealing material than the light conversion material.

14. The optical path control component according to claim 13, wherein, At least one of the sealing portions 1-1 and 1-2 contains 0.01% to 10% of the light conversion material relative to the total material, which is the sum of the light conversion material and the sealing material.

15. The optical path control component according to claim 1, wherein, A portion of the sealing portion 1-1 to the sealing portion 1-4 changes into a light-transmitting portion and a light-blocking portion depending on whether voltage is applied.

16. A display device, comprising: A panel, including at least one of a display panel and a touch panel; as well as The optical path control component according to claim 1, wherein the optical path control component is disposed on the panel or below the panel.

17. The display device according to claim 16, wherein, The panel includes a backlight unit and a liquid crystal display panel. The optical path control component is disposed between the backlight unit and the liquid crystal display panel, and The light emitted from the backlight unit moves from the first substrate toward the second substrate.

18. The display device according to claim 16, wherein, The panel includes an organic light-emitting diode panel. The optical path control component is disposed on the organic light-emitting diode panel, and The light emitted from the panel moves from the first substrate toward the second substrate.

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