KR102520204B1 - Light route control member and display having the same - Google Patents

Abstract

An optical path control member according to an embodiment includes a first substrate on which a first direction and a second direction are defined; 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 a light conversion unit disposed between the first electrode and the second electrode, wherein the second substrate and the second electrode include a cutting area penetrating the second substrate and the second electrode, The area may include a 1-1st cutting area and a 1-2nd cutting area disposed facing each other in the second direction; and a 2-1st cutting area and a 2-2nd cutting area disposed facing each other in the first direction, wherein a first sealing part is disposed in the 1-1st cutting area and the 1st-cutting area, A second sealing part is disposed inside the 2-1st cutting area and the 2-2nd cutting area.

Description

Optical path control member and display device including the same {LIGHT ROUTE CONTROL MEMBER AND DISPLAY HAVING THE SAME}

Embodiments relate to a light path control member and a display device including the same.

The light-shielding film blocks light from a light source, and is attached to the front of a display panel, which is a display device used for mobile phones, laptops, tablet PCs, vehicle navigations, vehicle touches, etc., and the incident angle of light when the display transmits the screen. It is used for the purpose of expressing clear image quality at the viewing angle required by the user by adjusting the viewing angle of light according to the above.

In addition, the light-shielding film may be used for windows of vehicles or buildings to partially block external light to prevent glare or to prevent the inside from being seen from the outside.

That is, the light blocking film may be a light path control member that controls a light movement path, blocks light in a specific direction, and transmits light in a specific direction. Accordingly, the angle of view of the user can be controlled by controlling the transmission angle of light through the light blocking film.

On the other hand, such a light-shielding film is divided into a light-shielding film capable of always controlling the viewing angle regardless of the surrounding environment or the user's environment, and a switchable light-shielding film capable of turning on/off the viewing angle control by the user according to the surrounding environment or the user's environment. can be distinguished.

Such a switchable light-shielding film may be implemented by filling the accommodating part with particles capable of moving when a voltage is applied and a dispersion solution dispersing the same, and changing the accommodating part into a light transmitting part and a light blocking part by dispersion and aggregation of the particles.

That is, the switchable light blocking film may include a plurality of accommodating portions filled with a dispersion liquid to change a path of light.

As described above, the viscous dispersion liquid is filled in the interior of these accommodating parts. Accordingly, there is a problem in that driving characteristics and reliability of the switchable light-shielding film are deteriorated because the dispersion liquid leaks out or impurities penetrate into the dispersion liquid during use of the switchable light-shielding film.

In addition, when the switchable light-shielding film is combined with a display panel and used as a display device, a pattern of the switchable light-shielding film overlaps with a pattern of the display panel, so that a moiré phenomenon may occur. Accordingly, when a user uses the display device, there is a problem in that visibility is deteriorated due to moiré.

Accordingly, a light path control member having a new structure capable of solving the above problems is required.

Embodiments relate to a light path control member having improved visibility and reliability and a display device including the same.

An optical path control member according to an embodiment includes a first substrate on which a first direction and a second direction are defined; 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 a light conversion unit disposed between the first electrode and the second electrode, wherein the second substrate and the second electrode include a cutting area penetrating the second substrate and the second electrode, The area may include a 1-1st cutting area and a 1-2nd cutting area disposed facing each other in the second direction; and a 2-1st cutting area and a 2-2nd cutting area disposed facing each other in the first direction, wherein a first sealing part is disposed in the 1-1st cutting area and the 1st-cutting area, A second sealing unit is disposed inside the 2-1st cutting area and the 2-2nd cutting area.

In the light path control member according to the first embodiment, holes penetrating all or part of the second substrate, the second electrode, the buffer layer, and the light conversion unit may be formed on the second substrate.

In addition, a first sealing part and a second sealing part may be disposed inside the holes, respectively.

The first sealing part and the second sealing part are disposed to seal an injection part and an outlet part of the receiving part accommodating the light conversion material, and are disposed to extend along a side surface area of the light conversion part, that is, a side surface area in a first direction. can

Accordingly, it is possible to prevent the light conversion material inside the accommodating part from leaking out to the outside of the light conversion part by the first sealing part, and the light conversion material from the outside can be prevented by the first sealing part and the second sealing part. Penetration of impurities into the inside of the unit can be prevented, and reliability of the light path control member can be improved.

In addition, since the first sealing part and the second sealing part are disposed inside the holes formed in the second substrate, compared to forming the first sealing part and the second sealing part outside the light conversion part, the light path The size of the control member may be reduced, and the sealing property of the light path control member may be improved by preventing the sealing part material from being denatured by an external environment.

In addition, in the light path control member according to the first embodiment, the first connection electrode may be disposed on the first protrusion, and the second connection electrode may be disposed on the second protrusion formed on the second substrate.

The first protruding part and the second protruding part may protrude only as much as an area in which the first connection area and the second connection area can be formed, without entirely protruding surfaces of the first substrate and the second substrate.

In addition, since the light path control member according to the first embodiment arranges the first connection electrode and the second connection electrode on the same surface, the first connection electrode and the second connection electrode can be easily connected when connected to an insulated circuit board or the like. can

Accordingly, areas of the first protrusion and the second protrusion may be reduced. Therefore, when the light path control member is combined with a display panel and applied to a display device, other elements of the display device may be disposed in areas not corresponding to the first protrusion and the second protrusion. The bezel area may be reduced.

That is, the light path control member according to the first exemplary embodiment reduces the size of the bezel area where the connection electrode is disposed, so that the bezel area of the display device to which the light path control member is applied can also be reduced.

In the light path control member according to the second embodiment, the accommodating part may be tilted at a predetermined inclination angle with respect to the second direction of the substrate.

Accordingly, when the light path control member and the display panel are combined to form a display device, it is possible to prevent a moire phenomenon from occurring due to overlapping of a pattern of the accommodation part of the light path control member and a pixel pattern of the display panel.

Accordingly, when a user views the display device from the outside, it is possible to prevent a pattern from being visually recognized due to a moiré phenomenon caused by overlapping the pattern of the receiving part of the light path control member and the pixel pattern of the display panel.

In addition, the light path control member according to the second embodiment may prevent the light conversion material from leaking out to the side of the light path control member as the accommodating part is inclined.

That is, since the first sealing part and the second sealing part are disposed at the ends of the light path control member in the first and second directions to seal the light conversion material inside the accommodating part, the light conversion material does not leak out or external impurities Penetration into the light conversion material may be minimized.

In addition, by forming a region where the sealing portion and the light conversion material are mixed, adhesive properties of the sealing portion may be improved by an anchor effect. Accordingly, adhesion of the sealing portion may be improved to prevent film separation, and thus reliability and sealing characteristics of the light path control member may be improved.

The light path control member according to the third exemplary embodiment may be disposed such that the first protrusion of the first substrate and the second protrusion of the second substrate are connected to each other.

Accordingly, when the first substrate and the second substrate are laminated, an alignment tolerance may be reduced.

Accordingly, it is possible to prevent defects in the process of manufacturing the optical path control member and improve process efficiency.

In addition, the electrode connection part disposed inside the third hole, which is the second connection area, is spaced apart from the adhesive layer, and an insulating layer is disposed between the electrode connection part and the adhesive layer so that the electrode connection part and the first electrode are electrically connected by the permittivity of the adhesive layer. can prevent it from happening.

Therefore, since the material of the adhesive layer can be freely selected and an electrical short circuit according to the permittivity of the adhesive layer can be prevented, driving characteristics and reliability of the light path control member can be improved.

1 is a perspective view showing a light path control member according to a first embodiment.
Fig. 2 is a top view of the first substrate of the light path control member according to the first embodiment.
Fig. 3 is a top view of the two substrates of the light path control member according to the first embodiment.
FIG. 4 is a top view of a second substrate to which the first substrate and the second substrate of the light path control member according to the first embodiment are laminated.
5 and 6 are cross-sectional views taken along the area AA′ of FIG. 1 .
FIG. 7 is a cross-sectional view taken along the area BB′ of FIG. 1 .
FIG. 8 is a cross-sectional view taken along a region CC′ of FIG. 1 .
FIG. 9 is a cross-sectional view taken along a region DD′ of FIG. 1 .
FIG. 10 is a cross-sectional view taken along an area EE′ of FIG. 1 .
FIG. 11 is a cross-sectional view taken along an area FF′ of FIG. 1 .
FIG. 12 is a cross-sectional view taken along the GG′ area of FIG. 1 .
FIG. 13 is a cross-sectional view taken along the HH′ area of FIG. 1 .
FIG. 14 is a cross-sectional view taken along area II′ of FIG. 1 .
15 is a perspective view of a light path control member according to a second embodiment.
16 is a top view of the first substrate of the light path control member according to the second embodiment.
17 is a top view of the second substrate of the light path control member according to the second embodiment.
FIG. 18 is a top view of a second substrate in which the first and second substrates of the light path control member according to the second embodiment are laminated.
FIG. 19 is a cross-sectional view taken along a region JJ′ of FIG. 15 .
FIG. 20 is a cross-sectional view taken along the area KK′ of FIG. 15;
FIG. 21 is a cross-sectional view taken along an area LL′ of FIG. 15 .
FIG. 22 is an enlarged view of area A of FIG. 18 .
FIG. 23 is an enlarged view of region B of FIG. 18 .
FIG. 24 is an enlarged view of area C of FIG. 18 .
FIG. 25 is an enlarged view of region D of FIG. 18 .
26 is a perspective view of the light path control member according to the third embodiment.
27 is a top view of the first substrate of the light path control member according to the third embodiment.
28 is a top view of the second substrate of the light path control member according to the third embodiment.
29 is a top view of a second substrate in which the first and second substrates of the light path control member according to the third embodiment are laminated.
FIG. 30 is a cross-sectional view taken along the MM' region of FIG. 26;
31 to 48 are diagrams for explaining a method of manufacturing a light path control member according to an embodiment.
49 and 50 are cross-sectional views of a display device to which a light path control member according to an exemplary embodiment is applied.
51 to 53 are views for explaining an embodiment of a display device to which a light path control member according to an embodiment is applied.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in various different forms, and if it is within the scope of the technical idea of the present invention, one or more of the components among the embodiments can be selectively selected. can be used by combining and substituting.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention, unless explicitly specifically defined and described, can be generally understood by those of ordinary skill in the art to which the present invention belongs. It can be interpreted as meaning, and commonly used terms, such as terms defined in a dictionary, can be interpreted in consideration of contextual meanings of related technologies.

Also, terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention. In this specification, the singular form may also include the plural form unless otherwise specified in the phrase, and when described as “at least one (or more than one) of A and (and) B and C”, the combination of A, B, and C is possible. It may include one or more of all possible combinations.

Also, terms such as first, second, A, B, (a), and (b) may be used to describe components of an embodiment of the present invention. These terms are only used to distinguish the component from other components, and the term is not limited to the nature, order, or order of the corresponding component.

And, when a component is described as being 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected to, combined with, or connected to the other component, but also with the component. It may also include the case of being 'connected', 'combined', or 'connected' due to another component between the other components.

In addition, when it is described as being formed or disposed on the "top (above) or bottom (bottom)" of each component, the top (top) or bottom (bottom) is not only a case where two components are in direct contact with each other, but also one A case in which another component above is formed or disposed between two components is also included.

In addition, when expressed as “up (up) or down (down)”, it may include the meaning of not only the upward direction but also the downward direction based on one component.

Hereinafter, a light path control member according to an embodiment will be described with reference to the drawings. The light path control member described below relates to a switchable light path control member that is driven in various modes according to electrophoretic particles moving by application of a voltage.

below. A light path control member according to the first embodiment will be described with reference to FIGS. 1 to 14 .

1 to 14, the light path control member according to the first embodiment includes a first substrate 110, a second substrate 120, a first electrode 210, a second electrode 220, a light conversion A portion 300 may be included.

The first substrate 110 may support the first electrode 210 . The first substrate 110 may be rigid or flexible.

Also, the first substrate 110 may be transparent. For example, the first substrate 110 may include a transparent substrate capable of transmitting light.

The first substrate 110 may include glass, plastic, or a flexible polymer film. For example, soft polymer films include polyethylene terephthalate (PET), polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer (ABS), and polymethylmethacrylic acid. Polymethyl Methacrylate (PMMA), Polyethylene Naphthalate (PEN), Polyether Sulfone (PES), Cyclic Olefin Copolymer (COC), TAC (Triacetylcellulose) film, Polyvinyl Alcohol ( It may be made of any one of a polyvinyl alcohol (PVA) film, a polyimide (PI) film, and a polystyrene (PS) film, which is only an example and is not necessarily limited thereto.

In addition, the first substrate 110 may be a flexible substrate having flexible characteristics.

Also, the first substrate 110 may be a curved or bent substrate. That is, the light path control member including the first substrate 110 may also be formed to have a flexible, curved or bended characteristic. For this reason, the light path control member according to the embodiment may be changed into various designs.

The first substrate 110 may extend in a first direction 1A, a second direction 2A, and a third direction 3A.

In detail, the first substrate 110 extends in a first direction 1A corresponding to the length or width direction of the first substrate 110 and in a direction different from the first direction 1A, and It extends in a second direction 2A corresponding to the length or width direction of 110 and in a direction different from the first direction 1A and the second direction 2A, and the thickness direction of the first substrate 110 It may include a third direction (3A) corresponding to .

For example, the first direction 1A may be defined as a longitudinal direction of the first substrate 110, and the second direction 2A is a first substrate perpendicular to the first direction 1A ( 110), and the third direction 3A may be defined as a thickness direction of the first substrate 110. Alternatively, the first direction 1A may be defined as the width direction of the first substrate 110, and the second direction 2A is the first substrate 110 perpendicular to the first direction 1A. may be defined as a length direction of , and the third direction 3A may be defined as a thickness direction of the first substrate 110 .

Hereinafter, for convenience of description, the first direction 1A is the length direction of the first substrate 110, the second direction 2A is the width direction of the first substrate 110, and the first direction 1A is the width direction of the first substrate 110. The three directions 3A are described as the thickness direction of the first substrate 110 .

The first electrode 210 may be disposed on one surface of the first substrate 110 . In detail, the first electrode 210 may be disposed on the upper surface of the first substrate 110 . That is, the first electrode 210 may be disposed between the first substrate 110 and the second substrate 120 .

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 indium tin oxide, indium zinc oxide, copper oxide, tin oxide, zinc oxide, A metal oxide such as titanium oxide may be included.

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

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

The first electrode 210 may be disposed on the entire surface of one surface of the first substrate 110 . In detail, the first electrode 210 may be disposed as a surface electrode on one surface of the first substrate 110 . However, the embodiment is not limited thereto, and the first electrode 210 may be formed of a plurality of patterned electrodes having a certain pattern such as a mesh or stripe shape.

For example, the first electrode 210 may include a plurality of conductive patterns. In detail, the first electrode 210 may include a plurality of mesh lines crossing each other and a plurality of mesh openings formed by the mesh lines.

Accordingly, even if the first electrode 210 includes a metal, the first electrode 210 is not visually recognized from the outside, and visibility may be improved. In addition, since light transmittance is increased by the openings, luminance of the light path control member according to the exemplary embodiment may be improved.

The second substrate 120 may be disposed on the first substrate 110 . In detail, the second substrate 120 may be disposed on the first electrode 210 on the first substrate 110 .

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 the same or similar material as the first substrate 110 described above.

For example, the second substrate 120 may include glass, plastic, or a flexible polymer film. For example, soft polymer films include polyethylene terephthalate (PET), polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer (ABS), and polymethylmethacrylic acid. Polymethyl Methacrylate (PMMA), Polyethylene Naphthalate (PEN), Polyether Sulfone (PES), Cyclic Olefin Copolymer (COC), TAC (Triacetylcellulose) film, Polyvinyl Alcohol ( It may be made of any one of a polyvinyl alcohol (PVA) film, a polyimide (PI) film, and a polystyrene (PS) film, which is only an example and is not necessarily limited thereto.

In addition, the second substrate 120 may be a flexible substrate having flexible characteristics.

Also, the second substrate 120 may be a curved or bent substrate. That is, the light path control member including the second substrate 120 may also be formed to have a flexible, curved or bended characteristic. For this reason, the light path control member according to the embodiment may be changed into various designs.

The second substrate 120 may also extend in the first direction 1A, the second direction 2A, and the third direction 3A like the first substrate 110 described above.

In detail, the second substrate 120 extends in a first direction 1A corresponding to the length or width direction of the second substrate 120 and in a direction different from the first direction 1A, and It extends in a second direction 2A corresponding to the length or width direction of 120 and in a direction different from the first direction 1A and the second direction 2A, and the thickness direction of the second substrate 120 It may include a third direction (3A) corresponding to .

For example, the first direction 1A may be defined as a longitudinal direction of the second substrate 120, and the second direction 2A is perpendicular to the first direction 1A. 120), and the third direction 3A may be defined as a thickness direction of the second substrate 120.

Alternatively, the first direction 1A may be defined as a width direction of the second substrate 120, and the second direction 2A is the second substrate 120 perpendicular to the first direction 1A. may be defined as a length direction of , and the third direction 3A may be defined as a thickness direction of the second substrate 120 .

Hereinafter, for convenience of description, the first direction 1A is the length direction of the second substrate 120, the second direction 2A is the width direction of the second substrate 120, and the first direction 1A is the second substrate 120. The three directions 3A are described as the thickness direction of the second substrate 120 .

The second electrode 220 may be disposed on one surface of the second substrate 120 . In detail, the second electrode 220 may be disposed on the lower surface of the second substrate 120 . That is, the second electrode 220 may be disposed on a surface of the second substrate 120 on which the second substrate 120 and the first substrate 110 face each other. That is, the second electrode 220 may be disposed facing the first electrode 210 on the first substrate 110 . That is, the second electrode 220 may be disposed between the first electrode 210 and the second substrate 120 .

The second electrode 220 may include a material identical to or similar to that of the first electrode 210 described above.

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 indium tin oxide, indium zinc oxide, copper oxide, tin oxide, zinc oxide, A metal oxide such as titanium oxide may be included.

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

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

The second electrode 220 may be disposed on the entire surface of one surface of the second substrate 120 . However, the embodiment is 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.

For example, the second electrode 220 may include a plurality of conductive patterns. In detail, the second electrode 220 may include a plurality of mesh lines crossing each other and a plurality of mesh openings formed by the mesh lines.

Accordingly, even if the second electrode 220 includes a metal, the second electrode 220 is not visually recognized from the outside, and visibility may be improved. In addition, since light transmittance is increased by the openings, luminance of the light path control member according to the exemplary embodiment may be improved.

A hole may be formed in the second substrate 120 . In detail, the second substrate 120 may include a plurality of holes.

Referring to FIG. 1 , the second substrate 120 has a 1-1 hole h1-1, a 1-2 hole h1-2, a 2-1 hole h2-1, and a 2-1 hole h1-1. It may include 2 holes (h2-2).

The 1-1 hole (h1-1), the 1-2 hole (h1-2), the 2-1 hole (h2-1) and the 2-2 hole (h2-2) are It may be a groove partially penetrating the path control member. The 1-1 hole (h1-1), the 1-2 hole (h1-2), the 2-1 hole (h2-1) and the 2-2 hole (h2-2) It may be formed extending from the substrate 120 toward the first substrate 110 .

At least one of the 1-1 hole (h1-1), the 1-2 hole (h1-2), the 2-1 hole (h2-1) and the 2-2 hole (h2-2) The hole of may be formed in a shape in which a long width and/or a short width become narrow while extending from the second substrate 120 toward the first substrate 110 .

The 1-1st hole h1-1 and the 1-2nd hole h1-2 may face each other. In detail, the 1-1 hole h1-1 and the 1-2 hole h1-2 extend in the first direction 1A of the second substrate 120, and the 1-1 hole (h1-1) and the first-second hole (h1-2) may be disposed facing each other. That is, the 1-1 hole h1-1 and the 1-2 hole h1-2 extend in the longitudinal direction of the second substrate 120, and the 1-1 hole h1-1 ) and the first-second hole h1-2 may be disposed facing each other.

The 1-1st hole h1-1 and the 1-2th hole h1-2 may have the same shape and area. Alternatively, the first-first hole h1-1 and the first-second hole h1-2 may have different shapes and/or areas.

At least one of the 1-1 hole h1 - 1 and the 1-2 hole h1 - 2 may be spaced apart from or in contact with both ends of the second substrate 120 .

The 2-1st hole h2-1 and the 2-2nd hole h2-2 may face each other. In detail, the 2-1 hole h2-1 and the 2-2 hole h2-2 extend in the second direction 2A of the second substrate 120, and the 2-1 hole (h2-1) and the 2-2 hole (h2-2) may be disposed facing each other. That is, the 2-1 hole h2-1 and the 2-2 hole h2-2 extend in the width direction of the second substrate 120, and the 2-1 hole h2-1 ) and the 2-2 hole h2-2 may be disposed facing each other.

The 2-1st hole h2-1 and the 2-2nd hole h2-2 may have the same shape and area. Alternatively, the 2-1st hole h2-1 and the 2-2nd hole h2-2 may have different shapes and/or areas.

At least one of the 2-1st hole h2-1 and the 2-2nd hole h2-2 may be spaced apart from or in contact with both ends of the second substrate 120 .

Accordingly, the 1-1 hole (h1-1), the 1-2 hole (h1-2), the 2-1 hole (h2-1) and the 2-2 hole (h2-2) may be disposed extending along the edge of the second substrate 120 .

At least two of the 1-1 hole (h1-1), the 1-2 hole (h1-2), the 2-1 hole (h2-1) and the 2-2 hole (h2-2) The holes of the dog may be connected to each other. Further, among the 1-1 hole (h1-1), the 1-2 hole (h1-2), the 2-1 hole (h2-1) and the 2-2 hole (h2-2) At least two holes may be spaced apart from each other.

For example, referring to FIG. 1, the 1-1 hole h1-1 is connected to the 2-1 hole h2-1 and the 2-2 hole h2-2, and the The 1-2nd hole (h1-2) is connected to the 2-1st hole (h2-1), and the 2-1st hole (h2-1) is connected to the 1-1st hole (h1-1) and It may be connected to the 1-2 hole h1-2, and the 2-2 hole h2-2 may be connected to the 1-1 hole h1-1. Accordingly, the first-second hole h1-2 and the second-second hole h2-2 may be spaced apart from each other.

Accordingly, an open area OA formed between the first-second hole h1-2 and the second-second hole h2-2 may be formed in the second substrate 120.

The current and voltage applied from the electrode connection part 700 of the second connection area CA2 by the open area OA passes through the second electrode 220 to the receiving part 320 of the light conversion part 300. direction can be transmitted.

Meanwhile, the second substrate 120 includes the 1-1 hole h1-1, the 1-2 hole h1-2, the 2-1 hole h2-1 and the 2-1 hole h1-2. At least one of the two holes h2-2 may be formed. That is, the second substrate 120 includes the 1-1 hole h1-1, the 1-2 hole h1-2, the 2-1 hole h2-1 and the 2-1 hole h1-2. All of the two holes h2-2 are formed, or the 1-1 hole h1-1, the 1-2 hole h1-2, the 2-1 hole h2-1 and the Some of the 2-2 holes h2-2 may be omitted, and only at least one hole may be formed. The number of the holes may vary depending on the manufacturing process of the light path control member.

The 1-1 hole (h1-1), the 1-2 hole (h1-2), the 2-1 hole (h2-1) and the 2-2 hole (h2-2) are 2 may be formed through the substrate 120 . In addition, the 1-1 hole (h1-1), the 1-2 hole (h1-2), the 2-1 hole (h2-1) and the 2-2 hole (h2-2) It may be formed passing through at least one of the second substrate 120 , the light conversion unit 300 , and the second electrode 220 .

In addition, the 1-1 hole (h1-1), the 1-2 hole (h1-2), the 2-1 hole (h2-1) and the 2-2 hole (h2-2) Penetration depth may be the same. Alternatively, among the 1-1 hole (h1-1), the 1-2 hole (h1-2), the 2-1 hole (h2-1) and the 2-2 hole (h2-2) At least one hole may have a different depth from other holes.

Penetrating depths of the 1-1 hole h1-1, the 1-2 hole h1-2, the 2-1 hole h2-1 and the 2-2 hole h2-2 is described in detail below.

In addition, the 1-1 hole (h1-1), the 1-2 hole (h1-2), the 2-1 hole (h2-1) and the 2-2 hole (h2-2) A sealing material may be disposed. Accordingly, the 1-1 hole (h1-1), the 1-2 hole (h1-2), the 2-1 hole (h2-1) and the 2-2 hole (h2-2) A sealing material may be disposed inside the to form the sealing portion 500 .

That is, the first sealing part 510 is disposed in the 1-1 hole h1-1 and the 1-2 hole h1-2, and the 2-1 hole h2-1 and the A second sealing part 520 may be disposed in the 2-2 hole h2-2.

That is, the 1-1 sealing part is disposed in the 1-1 hole h1-1, the 1-2 sealing part is disposed in the 1-2 hole h1-2, and the 2-1 hole A 2-1 sealing part may be disposed in (h2-1), and a 2-2 sealing part may be disposed in the 2-2 hole (h2-2).

Meanwhile, in order to minimize the bezel area of the light path control member, the 1-1 hole (h1-1), the 1-2 hole (h1-2), the 2-1 hole (h2-1) and In at least one of the 2-2 holes h2-2, at least one outer surface of the hole and all or part of the outer surface of the hole from the outer surface of the hole to the outer surface of the substrate are removed so that a portion of the hole is formed in the optical path control member. It may be the outermost side.

For example, since the open area is formed by removing the outer surface of the hole to the outer surface of the second substrate, the outermost part of the light path control member in the open area is a part of the hole, that is, the sealing part becomes the outermost surface of the light path control member. can Accordingly, at least one sealing portion of the first sealing portion 510 and the second sealing portion 520 may be an outermost surface of the light path control member.

The sealing part 500 disposed inside the holes will be described in detail below.

The first substrate 110 and the second substrate 120 may have the same or different sizes.

In detail, the first length of the first substrate 110 extending in the first direction 1A has the same or similar size as the second length of the second substrate 120 extending in the first direction 1A. can have

For example, the first length and the second length may have a size of 300 mm to 400 mm.

In addition, the first width of the first substrate 110 extending in the second direction 2A may have the same or similar size as the second width of the second substrate 120 extending in the second direction. .

For example, the first width and the second width may have a size of 150 mm to 200 mm.

In addition, the first thickness of the first substrate 110 extending in the third direction 3A may have the same or similar size as the second thickness of the second substrate 120 extending in the third direction. .

For example, the first thickness and the second thickness may have a size of 1 mm or less.

Also, the first substrate 110 and the second substrate 120 may have different areas.

In detail, the first substrate 110 and the second substrate 120 may include protrusions. Referring to FIGS. 2 and 3 , the first substrate 110 may include a first protrusion PA1 , and the second substrate 120 may include a second protrusion PA2 . In detail, the first substrate 110 and the second substrate 120 may each include a first protrusion PA1 and a second protrusion PA2 disposed to be offset from each other.

That is, the first protrusion PA1 and the second protrusion PA2 may be disposed so as not to overlap each other in the third direction 3A.

Alternatively, the embodiment is not limited thereto, and the first protrusion PA1 and the second protrusion PA2 may include an overlapping area overlapping each other and a non-overlapping area not overlapping each other. That is, the first protrusion PA1 and the second protrusion PA2 may include an overlapping area overlapping each other in the third direction and a non-overlapping area not overlapping each other.

In this case, the first protrusion PA1 and the second protrusion PA2 may have different areas. That is, the first substrate 110 and the second substrate 120 may have different sizes by the size difference between the protrusions.

A connection area connected to an external printed circuit board or a flexible printed circuit board may be formed on the first protruding portion PA1 of the first substrate 110 and the second protruding portion PA2 of the second substrate 120, respectively. there is.

In detail, a first connection area CA1 may be disposed on the first protrusion PA1, and a second connection area CA2 may be disposed on the second protrusion PA2. When the first protrusion PA1 and the second protrusion PA2 are disposed at positions that are offset from each other, the first connection area CA1 and the second connection area CA2 extend in the third direction 3A. They can be arranged so that they do not overlap.

A conductive material is exposed on upper surfaces of the first connection area CA1 and the second connection area CA2, respectively, and the light path is controlled through the first connection area CA1 and the second connection area CA2. The member may be electrically connected to an external printed circuit board or a flexible printed circuit board.

For example, a pad portion is disposed on the first connection area CA1 and the second connection area CA2, and an anisotropic conductive film (ACF) is disposed between the pad portion and the printed circuit board or the flexible printed circuit board. A conductive adhesive including at least one of anisotropic conductive pastes (ACP) may be placed and connected.

or, at least one of an anisotropic conductive film (ACF) and an anisotropic conductive paste (ACP) between the first connection area CA1 and the second connection area CA2 and the printed circuit board or flexible printed circuit board. A conductive adhesive can be placed to make a direct connection without padding.

A conductive material constituting the first connection area CA1 and the second connection area CA2 will be described in detail below.

The light conversion unit 300 may be disposed between the first substrate 110 and the second substrate 120 . In detail, the light conversion unit 300 may be disposed between the first electrode 210 and the second electrode 220 .

An adhesive layer or a buffer layer may be disposed between at least one of the light conversion unit 300 and the first substrate 110 or between the light conversion unit 300 and the second substrate 120, and the adhesive layer And/or the first substrate 110, the second substrate 120, and the light conversion unit 300 may be bonded by a buffer layer.

For example, an adhesive layer 410 may be disposed between the first electrode 210 and the light conversion unit 300, thereby bonding the first substrate 110 and the light conversion unit 300. there is.

In addition, a buffer layer 420 is disposed between the second electrode 220 and the light conversion unit 300, whereby the second electrode 220 and the light conversion unit ( 300) can improve the adhesion.

The holes described above may be formed through all or part of the buffer layer 420 and the light conversion unit 300 . That is, the hole may pass through the second substrate 120, the second electrode 220, and the buffer layer 420 in the third direction, and pass through all or part of the light conversion unit 300. .

The light conversion part 300 may include a plurality of barrier rib parts 310 and a receiving part 320 . A light conversion material 330 including light conversion particles that move when voltage is applied and a dispersion liquid for dispersing the light conversion particles may be disposed in the accommodating part 320, and the light path control member is controlled by the light conversion particles. The light transmission characteristics of may be changed.

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 may be disposed in the accommodating part 320 .

Referring to FIGS. 3 and 4 , the accommodating part 320 may be disposed extending in one direction. In detail, the accommodating portion 320 may extend in a direction corresponding to the second direction 2A of the first substrate 110 or the second substrate 120 . That is, the accommodating portion 320 may extend in a direction corresponding to the width direction of the first substrate 110 or the second substrate 120 and may be disposed.

Accordingly, both ends of the accommodating portion 320 of the light path control member according to the first embodiment may be disposed facing both ends of the first substrate 110 or the second substrate 120 , respectively. That is, one end of the accommodating portion 320 is disposed facing one end of the first substrate 110 or the second substrate 120 in the second direction 2A, and the accommodating portion 320 The other end of may be disposed facing the other end of the first substrate 110 or the second substrate 120 in the second direction 2A.

Accordingly, both ends of the accommodating portion 320 may be placed in contact with the first sealing portion 510 disposed facing each other in the second direction 2A, and different from the second sealing portion 520. They can be spaced apart.

Meanwhile, although not shown in the drawing, the accommodating part 320 may extend to the second protrusion, and the accommodating part 320 on the second protrusion may not include a light conversion material, or may convert light. It may contain less material than other receptacle areas.

5 and 6 are cross-sectional views taken along line AA' of FIG. 1 .

Referring to FIGS. 5 and 6 , the light conversion part 300 may include a barrier rib part 310 and an accommodating part 320 .

The barrier rib portion 310 may be defined as a barrier rib region defining an accommodating portion. That is, the barrier rib portion 310 is a barrier rib region that divides a plurality of accommodating units and may transmit light. That is, light emitted in the direction of the first substrate 110 or the second substrate 120 may pass through the barrier rib portion.

The barrier rib portion 310 and the accommodating portion 320 may be disposed while extending in the second direction 2A of the first substrate 110 and the second substrate 120 . That is, the barrier rib part 310 and the accommodating part 320 may extend in the width direction or the length direction of the first substrate 110 and the second substrate 120 and may be disposed.

The barrier rib portion 310 and the accommodating portion 320 may be disposed in different widths. For example, the width of the barrier rib portion 310 may be greater than that of the accommodating portion 320 .

In addition, the accommodating portion 320 may be formed in a shape that extends from the first electrode 210 toward the second electrode 220 and narrows in width.

The barrier rib portion 310 and the accommodating portion 320 may be alternately disposed. In detail, the barrier rib portion 310 and the accommodating portion 320 may be alternately disposed. That is, each of the barrier rib portions 310 may be disposed between the accommodating portions 320 adjacent to each other, and each accommodating portion 320 may be disposed between the barrier rib portions 310 adjacent to each other.

The barrier rib portion 310 may include a transparent material. The barrier rib portion 310 may include a material capable of transmitting light.

The barrier rib portion 310 may include a resin material. For example, the barrier rib portion 310 may include a photocurable resin material. For example, the barrier rib portion 310 may include a UV resin or a transparent photoresist resin. Alternatively, the barrier rib portion 310 may include urethane resin or acrylic resin.

The accommodating part 320 may be formed to partially penetrate the light conversion part 300 . Accordingly, the accommodating portion 320 may be disposed while contacting the adhesive layer 410 and spaced apart from the buffer layer 420 . Accordingly, a base portion 350 may be formed between the accommodating portion 320 and the buffer layer 420 .

A light conversion material 330 including light conversion particles 330a and a dispersion 330b in which the light conversion particles 330a are dispersed may be disposed in the accommodating part 320 .

The dispersion liquid 330b may be a material that disperses the light conversion particles 330a. The dispersion 330b may include a transparent material. The dispersion 330b may include a non-polar solvent. In addition, the dispersion 330b may include a material capable of transmitting light. For example, the dispersion 330b may include at least one of halocarbon-based oil, paraffin-based oil, and isopropyl alcohol.

The light conversion particles 330a may be dispersed and disposed in the dispersion liquid 330b. In detail, the plurality of light conversion particles 330a may be spaced apart from each other in the dispersion liquid 330b.

The light conversion particle 330a may include a material capable of absorbing light. That is, the light conversion particles 330a may be light absorbing particles, and the light conversion particles 330a may have a color. For example, the light conversion particle 330a may have a black-based color. For example, the light conversion particles 330a may include carbon black particles.

The surface of the light conversion particle 330a may be charged and may have a polarity. For example, the surface of the light conversion particle 330a may be negatively charged. Accordingly, when voltage is applied, the light conversion particle 330a may move toward the first electrode 210 or the second electrode 220 .

The light transmittance of the accommodating part 320 may be changed by the light conversion particles 330a. In detail, the accommodating part 320 may be changed into a light blocking part and a light transmitting part by changing light transmittance by the light conversion particles 330a. That is, the accommodating part 330a may change light transmittance passing through the accommodating part 320 by dispersion and aggregation of the light conversion particles 330a disposed in the dispersion liquid 330b.

For example, in the light path member according to the first embodiment, a voltage applied to the first electrode 210 and the second electrode 220 changes the first mode to the second mode or the second mode to the first mode. can be changed to

In detail, in the light path control member according to the first embodiment, the accommodating part 320 becomes a light blocking part in the first mode, and light of a specific angle can be blocked by the accommodating part 320 . That is, the viewing angle of the user looking from the outside is narrowed, so that the optical path control member can be driven in the privacy mode.

Further, in the light path control member according to the first embodiment, in the second mode, the accommodating part 320 becomes a light transmitting part, and in the optical path controlling member according to the first embodiment, the barrier rib part 310 and the accommodating part All light may be transmitted through 320 . That is, the user's viewing angle from the outside is widened so that the optical path control member can be driven in the open mode.

The conversion from the first mode to the second mode, that is, the conversion of the accommodating part 320 from a light blocking part to a light transmitting part may be realized by the movement of the light conversion particles 330a of the accommodating part 320. can That is, the light conversion particle 330a has charges on its surface, and may move in the direction of the first electrode or the second electrode according to the application of voltage according to the characteristics of the charges. That is, the light conversion particles 330a may be electrophoretic particles.

For example, when no voltage is applied to the light path control member from the outside, the light conversion particles 330a of the accommodating part 320 are uniformly dispersed in the dispersion 330b, and accordingly, the accommodating part ( 320) may block light by the light conversion particles 330a. Accordingly, in the first mode, the accommodating part 320 may be driven as a light blocking part.

Also, when a voltage is applied to the light path control member from the outside, the light conversion particles 330a may move. For example, the light conversion particle 330a is moved toward one end or the other end of the accommodating part 320 by the voltage transmitted through the first electrode 210 and the second electrode 220. can That is, the light conversion particle 330a may move toward the first electrode 210 or the second electrode 220 .

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 light conversion particles 330a in a negatively charged state can move in the direction of the positive electrode of the first electrode 210 and the second electrode 220 using the dispersion liquid 330b as a medium.

For example, in the initial mode or when no voltage is applied to the first electrode 210 and/or the second electrode 220, as shown in FIG. Evenly dispersed in the inside, the accommodating part 320 can be driven as a light blocking part.

In addition, when a voltage is applied to the first electrode 210 and/or the second electrode 220, as shown in FIG. (220) direction, that is, the light conversion particle 330a is moved in one direction, and the accommodating part 320 can be driven as a light transmitting part.

Accordingly, the light path control member according to the first embodiment can be driven in two modes according to the user's surrounding environment. That is, when the user desires to transmit light only at a specific viewing angle, the accommodating unit may be driven as a light blocking unit, or in an environment where the user requires a wide viewing angle and high luminance, a voltage may be applied to drive the accommodating unit as a light transmitting unit. there is.

Accordingly, since the light path control member according to the first embodiment can be implemented in two modes according to the user's request, the light path member can be applied regardless of the user's environment.

A second sealing part 520 may be disposed on an outermost side of the light path control member. In detail, a second sealing part 520 extending in the second direction 2A and facing each other may be disposed at an outermost side of the light path control member in the first direction 1A.

The second sealing part 520 may be disposed inside the holes described above. In detail, the second sealing part 520 may be disposed inside the 2-1 hole h2-1 and the 2-2 hole h2-2.

That is, the 2-1 hole (h2-1) and the 2-2 hole (h2-2) are formed by the second substrate 120, the second electrode 220, the buffer layer 420 and the base portion. 350 and part or all of the light conversion part 300 including the barrier rib part 310 are sequentially formed, and the 2-1st hole h2-1 and the 2-2nd hole The second sealing part 520 may be formed by disposing a sealing material inside (h2-2).

That is, the 2-1st hole (h2-1) and the 2-2nd hole (h2-2) are formed by the 2-1st hole (h2-1) and the 2-2nd hole (h2-2). One surface of the barrier rib portion 310 or the adhesive layer 410 is exposed through, and the second sealing portion 520 may be disposed in contact with the barrier rib portion 310 or the adhesive layer 410 .

The second sealing part 520 may be disposed in contact with the side surface of the second substrate 120 . Also, the second sealing part 520 may be disposed in contact with the side surface of the second electrode 220 . In addition, the second sealing part 520 may be disposed in contact with the side surface of the buffer layer 420 . Also, the second sealing part 520 may be disposed in contact with the side surface of the base part 350 . Also, the second sealing part 520 may be disposed in contact with the side surface of the partition wall part 310 .

The second sealing part 520 is disposed on a side surface of the light path control member, that is, a side surface in the second direction 2A, to prevent impurities that may penetrate from the outside from penetrating into the light conversion part 300. can do.

The second sealing part 520 is disposed while completely filling the 2-1st hole (h2-1) and the 2-2nd hole (h2-2), or the 2-1st hole (h2-1) And it may be disposed at a height lower than the depth of the 2-2 hole (h2-2). Accordingly, as shown in FIGS. 5 and 6 , the upper surface of the second sealing part 520 may be disposed at a height lower than that of the upper surface of the second substrate 120 . That is, the upper surface of the second sealing part 520 and the upper surface of the second substrate 120 may form a step. Also, the upper surface of the second sealing part 520 may be formed in a concave shape.

Meanwhile, in FIGS. 5 and 6, the 2-1st hole h2-1 and the 2-2nd hole h2-2 are formed to a depth exposing one surface of the partition wall of the light conversion unit 300. Although shown, the embodiment is not limited thereto.

That is, the depths of the 2-1st hole (h2-1) and the 2-2nd hole (h2-2) are the depths of the 2-1st hole (h2-1) and the 2-2nd hole (h2-2). ) can be varied through the process method of forming, process time, etc.

For example, at least one of the 2-1 hole h2-1 and the 2-2 hole h2-2 is formed to a depth that partially penetrates the light conversion unit 300, As a result, one surface of the base part, the partition wall part 310 or the accommodating part 320 may be exposed by the 2-1st hole h2-1 and the 2-2nd hole h2-2.

Accordingly, the second sealing part 520 may be disposed to be spaced apart from the adhesive layer 410 .

Alternatively, at least one of the 2-1st hole h2-1 and the 2-2nd hole h2-2 is formed to a depth that partially penetrates the light conversion unit 300, whereby One surface of the adhesive layer 410 may be exposed by the 2-1st hole h2-1 and the 2-2nd hole h2-2.

Alternatively, at least one of the 2-1 hole (h2-1) and the 2-2 hole (h2-2) is formed to a depth that partially penetrates the adhesive layer 410, whereby the first hole is formed. One side of the adhesive layer 410 may be exposed by the 2-1 hole h2-1 and the 2-2 hole h2-2.

Alternatively, at least one of the 2-1 hole h2-1 and the 2-2 hole h2-2 is formed to a depth that partially penetrates the first electrode 210, thereby One side of the first electrode 210 may be exposed by the 2-1 hole h2-1 and the 2-2 hole h2-2.

Alternatively, at least one of the 2-1 hole h2-1 and the 2-2 hole h2-2 is formed to a depth that partially penetrates the first substrate 110, thereby One side of the first substrate 110 may be exposed by the 2-1 hole h2-1 and the 2-2 hole h2-2.

FIG. 7 is a cross-sectional view taken along the line BB′ of FIG. 1 . That is, FIG. 7 is a cross-sectional view in which both ends of one of the first sealing parts 510 are cut.

Referring to FIG. 7 , the first sealing part 510 may be disposed inside the 1-1 hole h1-1. The first sealing part 510 may be disposed in contact with the side surface of the second substrate 120 . Also, the first sealing part 510 may be disposed in contact with the side surface of the second electrode 220 . Also, the first sealing part 510 may be disposed in contact with the side surface of the buffer layer 420 . Also, the first sealing part 510 may be disposed in contact with the side surface of the base part 350 . Also, the first sealing part 510 may be disposed in contact with a side surface of the partition wall part 310 .

Also, a second sealing part 520 may be disposed on the first sealing part 510 in an area where the 1-1 hole, the 2-1 hole, and the 2-2 hole overlap. That is, since the second sealing part 520 is formed after the first sealing part 510 is formed, in the area where the first sealing part 510 and the second sealing part 520 overlap, the A second sealing part 520 may be disposed on the first sealing part 510 .

For example, the 1-1 hole h1-1 is formed to pass through all of the second substrate 120, the second electrode 220, the buffer layer 420, and the light conversion unit 300, , The first sealing portion 510, the side of the second substrate 120, the side of the second electrode 220, the side of the buffer layer 420, the side of the base portion 350, the partition wall portion It may be disposed in contact with the side surface of the 310. The 1-1 hole h1-1 is formed at one end of the second substrate 120 in the first direction 1A and in the second direction 2A. It can be placed in contact with both ends of.

That is, in the 1-1 hole h1-1, one outer surface of the second substrate 120 in the first direction 1A is removed, and the second substrate 120 is formed in the second direction 2A. Both outer surfaces of may be formed by removing. Accordingly, one outer surface of the second substrate 120 in the first direction 1A may be a part of the 1-1 hole h1-1 as the outermost surface of the second substrate 120. And, in the portion where the 1-1 hole h1-1 is formed among both outer surfaces of the second substrate 120 in the second direction 2A, the 1-1 hole h1-1 One part may be the outermost side of the second substrate 120 .

The 1-1 hole h1-1 includes the second substrate 120, the second electrode 220, the buffer layer 420, the base portion 350, and the barrier rib portion 310. It may be formed by sequentially penetrating the light conversion unit 300 . Subsequently, the first sealing part 510 may be formed by disposing a sealing material in the 1-1 hole h1-1.

The sealing material of the first sealing part 510 and the second sealing part 520 may include the same material. Alternatively, the sealing material of the first sealing part 510 and the second sealing part 520 may include different materials.

For example, at least one sealing material of the first sealing part 510 and the second sealing part 520 may include a light curing material. In addition, at least one sealing material of the first sealing part 510 and the second sealing part 520 may include a material having little reactivity with the light conversion material. For example, at least one sealing material of the first sealing part 510 and the second sealing part 520 may include polyurethane acrylate.

The 1-1 hole h1-1 includes the second substrate 120, the second electrode 220, the buffer layer 420, the base part 350, and the barrier rib part 310. Since the light conversion unit 300 is sequentially formed, one surface of the adhesive layer 410 may be exposed through the 1-1 hole h1-1.

Accordingly, the first sealing part 510 disposed inside the 1-1 hole h1-1 is disposed in contact with the adhesive layer 410 inside the 1-1 hole h1-1. can

The first sealing part 520 may be disposed on a side surface of the light path control member, that is, a side surface in the first direction 1A, to seal the accommodating part 320 of the light conversion part 300 . That is, while preventing the light conversion material 330 accommodated in the accommodating part 320 from leaking out, it is possible to prevent impurities that may permeate from the outside from penetrating into the light conversion part 300 .

The first sealing part 510 may be disposed while completely filling the 1-1 hole h1-1 or may be disposed at a height lower than the depth of the 1-1 hole h1-1. Accordingly, the upper surface of the first sealing part 510 may be disposed at a height lower than that of the upper surface of the second substrate 120 . That is, the upper surface of the first sealing part 510 and the upper surface of the first substrate 110 may form a step. In addition, the upper surface of the first sealing part 510 may be formed in a concave shape.

FIG. 8 is a cross-sectional view taken along line C-C′ of FIG. 1 . That is, FIG. 8 is a cross-sectional view of both ends of the sealing portion to which the first sealing portion 510 and the second sealing portion 520 are connected, cut in the first direction.

Referring to FIG. 8 , the 1-2nd hole h1-2 and the 2-1st hole h2-1 may be connected to each other.

Also, the 1-2nd hole h1-2 may be spaced apart from the 2-2nd hole h2-2. That is, one end of the 1-2nd hole h1-2 may be spaced apart from the 2-2nd hole h2-2.

The 1-2nd hole h1-2 and the 2-2nd hole h2-2 are spaced apart from each other, whereby the second substrate 120 has the 1-2nd hole h1-2 and An open area OA formed between the 2-2nd holes h2-2 may be formed.

The electrode connecting portion 700 of the second connection area CA2 disposed on the second protruding portion PA2 of the second substrate 120 through the second electrode 220 disposed in the open area OA and the The second electrode 220 may be connected without being disconnected. That is, the light conversion material 330 inside the accommodating part 320 disposed between the first sealing part 510 and the second sealing part applies current and voltage transmitted through the open area OA. can receive

Since the 1-2 hole h1-2 and the 2-1 hole h2-1 are connected, the first sealing part 510 disposed in the 1-2 hole h1-2 and The second sealing parts 520 disposed in the 2-1 hole h2-1 may be disposed while being connected to each other. In addition, since the 1-2 hole h1-2 and the 2-2 hole h2-2 are spaced apart from each other, the first sealing part 510 disposed in the 1-2 hole h1-2 may be spaced apart from the second sealing part 520 disposed in the 2-2 hole h2-2.

Meanwhile, in the drawings, the 2-1 hole h2-1 is disposed at a distance from the end of the second substrate 120 in the first direction 1A, that is, the outer surface, but the embodiment has this It is not limited, and like the 1-1 hole h1-1 described above, one outer surface of the second substrate 120 in the first direction 1A may be removed and formed. Accordingly, one outer surface of the second substrate 120 in the first direction 1A may be a part of the 2-1 hole h2-1 as the outermost surface of the second substrate 120. there is.

Meanwhile, the 2-1st hole h2-1 and the 2-2nd hole h2-2 may have different lengths. In detail, the length of the 2-2 hole h2-2 in the second direction 2A may be greater than the length of the 2-1 hole h2-1 in the second direction 2A.

The 2-2 hole h2-2 may extend to the second protrusion PA2 of the second substrate 120 and may be disposed, and thus, the length of the 2-2 hole h2-2 may be longer than the length of the 2-1 hole h2-1.

Accordingly, the length of the second sealing part 520 disposed inside the 2-1 hole h2-1 and the 2-2 hole h2-2 may also vary. That is, the length of the second sealing part 520 disposed inside the 2-2 hole h2-2 is the length of the second sealing part 520 disposed in the 2-1 hole h2-1. ) can be longer than the length of

A first sealing part and a second sealing part may be disposed inside the 1-1 hole, the 1-2 hole, the 2-1 hole, and the 2-2 hole, respectively.

Also, a second sealing part 520 may be disposed on the first sealing part 510 in an area where the 1-2 hole and the 2-1 hole overlap. That is, since the second sealing part 520 is formed after the first sealing part 510 is formed, in the area where the first sealing part 510 and the second sealing part 520 overlap, the A second sealing part 520 may be disposed on the first sealing part 510. The first sealing part and the second sealing part seal the injection part and the outlet part of the receiving part accommodating the light conversion material and are disposed. and may be disposed extending along a side area of the light conversion unit, that is, a side area in the first direction.

Accordingly, it is possible to prevent the light conversion material inside the accommodating part from leaking out to the outside of the light conversion part by the first sealing part, and the light conversion material from the outside can be prevented by the first sealing part and the second sealing part. Penetration of impurities into the inside of the unit can be prevented, and reliability of the light path control member can be improved.

In addition, since the first sealing part and the second sealing part are disposed inside the holes formed in the second substrate, compared to forming the first sealing part and the second sealing part outside the light conversion part, the light path The size of the control member may be reduced, and the sealing property of the light path control member may be improved by preventing the sealing part material from being denatured by an external environment.

FIG. 9 is a cross-sectional view taken along the line D-D′ of FIG. 1 . That is, FIG. 9 is a view showing cross-sectional views taken along protrusion areas of the first substrate and the second substrate.

Referring to FIG. 9 , the first protrusion PA1 of the first substrate 110 and the second protrusion PA2 of the second substrate 120 may 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 may be spaced apart from each other in the first direction 1A.

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

Accordingly, the first connection area CA1 disposed on the first protrusion PA1 and the second connection area CA2 disposed on the second protrusion PA2 are physically spaced apart from each other, so that the second connection area CA2 is physically spaced apart from each other. It is possible to prevent the first connection area CA1 and the second connection area CA2 from being electrically connected to each other through the adhesive layer.

A first connection area CA1 may be disposed on the first protrusion PA1. The first electrode 210 may be exposed in the first connection area CA1. That is, the first electrode 210 on the first substrate 110 is exposed by partially removing the adhesive layer 410 on the first protrusion PA1, and thus, in the first connection area CA1 An upper surface of the first electrode 210 may be exposed. That is, the first electrode 210 exposed in the first connection area CA1 may be a first connection electrode connected to an external printed circuit board or a flexible printed circuit board.

In addition, a second connection area CA2 may be disposed on the second protrusion PA2. A third hole h3 may be formed in the second connection area CA2. An electrode connection part 700 containing a conductive material may be disposed inside the third hole h3.

The electrode connection part 700 may include a material different from that of at least one of the first electrode 210 and the second electrode 220 . In addition, the light transmittance of the electrode connection part 700 may be smaller than the light transmittance of at least one of the first electrode 210 and the second electrode 220 .

For example, the electrode connection part 700 may include metal. In detail, the electrode connection part 700 may include a metal paste in which metal particles are dispersed in a binder.

The electrode connection part 700 may be disposed in contact with the side surface of the second substrate 120 . Also, the electrode connection part 700 may be disposed in contact with the side surface of the second electrode 220 . Also, the electrode connection part 700 may be disposed in contact with the side surface of the buffer layer 420 . Also, the electrode connection part 700 may be disposed in contact with the side surface of the base part 350 . Also, the electrode connection part 700 may be disposed in contact with the side surface of the barrier rib part 310 .

That is, the electrode connection part 700 is in contact with at least one side surface of the second substrate 120, the second electrode 220, the buffer layer 420, the base part 350, and the barrier rib part 310. and can be placed.

In addition, a protective layer may be additionally disposed on the lower surface of the electrode connection part. Accordingly, oxidation or denaturation of the electrode connection portion exposed to the outside can be prevented.

The upper surface of the electrode connection part 700 may be disposed on the same plane as or lower than the upper surface of the second substrate 120 . For example, the upper surface of the electrode connection part 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 part 700 may be disposed lower than the upper surface of the second substrate 120 .

Accordingly, the upper surface of the electrode connection part 700 and the upper surface of the second substrate 120 may be formed on the same plane without a step difference, or may be disposed with a step difference such that the upper surface of the electrode connection part 700 is low.

Accordingly, it is possible to reduce the overall thickness of the light path control member by preventing the overall thickness of the light path control member from being increased due to the height of the electrode connection part 700 .

The electrode connecting portion 700 may be electrically connected to the second electrode 220 and exposed to the outside of the second substrate 120 . That is, the electrode connection part 700 may be exposed to the second protruding part PA2 of the second substrate 120 . That is, the upper surface of the electrode connection part 700 may be exposed in the second connection area CA2 .

Accordingly, the electrode connection portion 700 exposed in the second connection area CA2 may be a second connection electrode connected to an external printed circuit board or a flexible printed circuit board.

Accordingly, the first electrode 210 and the second electrode 220 are connected to the same printed circuit board or flexible printed circuit board through the first connection electrode of the first connection area and the second connection electrode of the second connection area, respectively. and may be electrically connected to each other.

In this case, since the first connection electrode and the second connection electrode are disposed on the same surface, when connecting the first connection electrode and the second connection electrode with one printed circuit board, they can be easily connected.

Alternatively, the first electrode 210 and the second electrode 220 are connected to other printed circuit boards or flexible printed circuit boards through the first connection electrode of the first connection region and the second connection electrode of the second connection region, respectively. connected and electrically connected to each other. That is, the first connection electrode may be connected to a first circuit board, and the second connection electrode may be connected to a second circuit board different from the first circuit board.

The light path control member according to the first embodiment includes a first connection electrode of the first connection area and a second connection electrode of the second connection area, a first protrusion formed on the first substrate and the second substrate, and a second connection electrode of the second connection area. 2 can be placed on the protrusion.

The first protruding part and the second protruding part may protrude only as much as an area in which the first connection region and the second connection electrode can be formed, rather than entire surfaces of the first substrate and the second substrate.

Accordingly, areas of the first protrusion and the second protrusion may be reduced. Therefore, when the light path control member is combined with a display panel and applied to a display device, other elements of the display device may be disposed in areas not corresponding to the first protrusion and the second protrusion. The bezel area may be reduced.

That is, the light path control member according to the first exemplary embodiment reduces the size of the bezel area where the connection electrode is disposed, so that the bezel area of the display device to which the light path control member is applied can also be reduced.

FIG. 10 is a cross-sectional view taken along area E-E' of FIG. 1 . That is, FIG. 10 is a cross-sectional view taken along both ends of the 2-2 hole in the second direction.

Referring to FIG. 10 , the 2-2 hole h2 - 2 may extend from the second protrusion PA2 of the second substrate 120 in the second direction 2A.

Referring to FIG. 10 , the 1-1 hole h1-1 and the 2-2 hole h2-2 may be connected to each other.

Since the 1-1 hole h1-1 and the 2-2 hole h2-2 are connected, the first sealing part 510 disposed in the 1-1 hole h1-1 and The second sealing parts 520 disposed in the 2-2 hole h2-2 may be disposed while being connected to each other.

In addition, in an area where the 1-1 hole h1-1 and the 2-2 hole h2-2 overlap, a second sealing part 520 may be disposed on the first sealing part 510. can That is, since the second sealing part 520 is formed after the first sealing part 510 is formed, in the area where the first sealing part 510 and the second sealing part 520 overlap, the A second sealing part 520 may be disposed on the first sealing part 510 .

On the other hand, although the drawings show that the 2-2 hole h2-2 is disposed apart from the end of the second substrate 120 in the first direction 1A, that is, the outer surface, the embodiment is It is not limited, and like the 1-1 hole h1-1 described above, one outer surface of the second substrate 120 in the first direction 1A may be removed and formed. Accordingly, one outer side of the second substrate 120 in the first direction 1A may be a portion of the second substrate 120 at the outermost side of the second hole h2-2. there is.

FIG. 11 is a cross-sectional view taken along the line F-F' of FIG. 1, and FIG. 12 is a view showing a cross-sectional view taken along the line G-G' of FIG. 1, that is, FIGS. 11 and 12 are the first This is a cross-sectional view of the second connection area CA2 disposed on the second protrusion PA2 in the second direction.

Referring to FIGS. 11 and 12 , the second connection area CA2 may include an overlapping area and a non-overlapping area with the first sealing part 510 .

That is, since the 1-2nd hole h1-2 and the 2-2nd hole h2-2 are spaced apart from each other, the second connection area CA2 is the open area ( OA) and an area overlapping the first sealing part 510 disposed inside the first-second hole h1-2.

Also, referring to FIG. 12 , a dam portion 600 may be disposed between the second connection area CA2 , that is, between the electrode connection portion 700 and the first sealing portion 510 . That is, the dam part 600 may be disposed on the second protrusion PA2 between the electrode connection part 700 and the first sealing part 510 .

The dam part 600 is formed by filling a hole passing through the second substrate 120, the second electrode 220, the buffer layer 410, and the light conversion part 300 with a material forming a dam. can

The dam part 600 is a material that controls the injection length of the light conversion material when the light conversion material 330 is injected into the accommodating part 320, and the light conversion material ( 330) may be prevented from overflowing toward the outside of the dam, that is, toward the electrode connection part 700.

Part of the dam part 600 may be removed and part of the dam part 600 may remain during the manufacturing process of the optical path control member, and part of the dam part may remain in an area adjacent to the second connection area CA2 .

On the other hand, when the light conversion part 300 between the electrode connection part 700 and the dam part 600 is in the partition wall part 310 area, as shown in FIG. 12, between the electrode connection part 700 and the dam part 600 The light conversion unit 300, the buffer layer 420, the second electrode 220, and the second substrate 120 may remain.

Alternatively, when the light conversion part 300 between the electrode connection part 700 and the dam part 600 is in the accommodating part 320 area, the material of the dam part 600 moves into the accommodating part 320 and The dam part 600 and the electrode connection part 700 may contact each other.

In addition, when the light conversion part 300 between the dam part 600 and the first sealing part 510 is the partition wall part 310 region, as shown in FIG. 12, the dam part 600 and the first sealing part ( 510), the light conversion unit 300, the buffer layer 420, the second electrode 220, and the second substrate 120 may remain.

Alternatively, when the light conversion part 300 between the dam part 600 and the first sealing part 510 is in the accommodating part 320 area, the first sealing part 510 into the accommodating part 320 In addition, the material of the dam part 600 may move so that the first sealing part 510 and the dam part 600 may contact each other.

FIG. 13 is a cross-sectional view taken along the line H-H' of FIG. 1; That is, FIG. 13 is a cross-sectional view of one accommodating portion of the light path control member cut in a second direction.

Referring to FIG. 13 , a light conversion material 330 may be disposed inside the accommodating part 320 . In detail, the light conversion material 330 and the first sealing part 510 may be disposed inside the accommodating part 320 .

The first sealing part 510 is disposed at one end and the other end of the accommodating part 320 in the second direction 2A, and prevents the light conversion material 330 disposed inside the accommodating part 320. can be sealed.

The light conversion material 330 inside the accommodating part 320 is sealed by the first sealing part 510, so that leakage to the outside of the light path control member can be prevented.

The first sealing part 510 disposed in the 1-1 hole h1 - 1 may be disposed in contact with the light conversion material 330 . Also, the first sealing part 510 disposed in the first-second hole h1 - 2 may contact the light conversion material 300 and the first mixed region 810 .

The first mixing area 810 may be an area where both the material of the dam part 600 removed during the manufacturing process of the light path control member and the material of the first sealing part 510 are disposed.

That is, the first mixing region 810 may include the same material as or a different material from the first sealing part 510 .

For example, when the material of the first sealing part 510 and the dam part 600 include the same material, the first mixing region 810 may be an area where the first sealing part 510 extends. there is.

Alternatively, when the materials of the first sealing part 510 and the dam part 600 include different materials, the first mixing region 810 is formed when the materials of the first sealing part 510 and the dam part 600 are mixed. It may be an area where materials of the first sealing part 510 and the dam part 600 are not mixed but separated and placed together while having an interface.

The generation of air inside the accommodating part 320 can be minimized by the first mixing region 810 disposed inside the accommodating part 320 .

That is, as the injection amount of the material of the dam part 600 in any one receiving part changes, the size of the space area between the first sealing part 510 and the dam part 600 may change, and inside this space area By disposing the sealing material of the first sealing part 510 in an appropriate amount, the inside of the accommodation part may be filled while filling the first sealing part 510 and the light conversion material 330 .

Accordingly, it is possible to prevent the generation of air bubbles due to voids in the accommodating part 320 and the resulting light leakage.

FIG. 14 is a cross-sectional view taken along the line II′ of FIG. 1 . That is, FIG. 14 is a cross-sectional view of one barrier rib portion of the light path control member cut in a second direction.

Referring to FIG. 14 , the barrier rib portion 310 is disposed in an area corresponding to the barrier rib portion 310, and the barrier rib portion 310 is entirely removed from the second substrate 120 to form the first sealing portion. (510) may be formed.

That is, the first sealing part 510 may also be disposed in an area where the barrier rib part is disposed. Accordingly, the area of the first sealing portion 510 may be increased by the size of the removal of the barrier rib portion.

Therefore, the arrangement area of the first sealing part 510 can be increased without increasing the thickness of the first sealing part 510 . In addition, since the contact area of the first sealing part 510 is increased, the adhesive property of the first sealing part can be improved.

Accordingly, sealing characteristics of the light conversion material according to the first sealing part 510 may be improved.

The light path control member according to the first embodiment includes a 1-1 hole and a 1-2 hole passing through the second substrate, the second electrode, and the buffer layer on the second substrate and penetrating all or part of the light conversion unit. , the 2-1st hole and the 2-2nd hole may be formed.

In addition, a first sealing part and a second sealing part may be disposed inside the 1-1 hole, the 1-2 hole, the 2-1 hole, and the 2-2 hole, respectively.

The first sealing part and the second sealing part are disposed to seal an injection part and an outlet part of the receiving part accommodating the light conversion material, and are disposed to extend along a side surface area of the light conversion part, that is, a side surface area in a first direction. can

Accordingly, it is possible to prevent the light conversion material inside the accommodating part from leaking out to the outside of the light conversion part by the first sealing part, and the light conversion material from the outside can be prevented by the first sealing part and the second sealing part. Penetration of impurities into the inside of the unit can be prevented, and reliability of the light path control member can be improved.

In addition, since the first sealing part and the second sealing part are disposed inside the holes formed in the second substrate, compared to forming the first sealing part and the second sealing part outside the light conversion part, the light path The size of the control member may be reduced, and the sealing property of the light path control member may be improved by preventing the sealing part material from being denatured by an external environment.

Further, in the light path control member according to the first embodiment, the first connection electrode is disposed on the first protrusion formed on the first substrate, and the second connection electrode is disposed on the second protrusion formed on the second substrate. can do.

The first protruding part and the second protruding part may protrude only as much as an area in which the first connection electrode and the second connection electrode can be formed, without entirely protruding the surfaces of the first substrate and the second substrate.

Accordingly, areas of the first protrusion and the second protrusion may be reduced. Therefore, when the light path control member is combined with a display panel and applied to a display device, other elements of the display device may be disposed in areas not corresponding to the first protrusion and the second protrusion. The bezel area may be reduced.

That is, the light path control member according to the first exemplary embodiment reduces the size of the bezel area where the connection electrode is disposed, so that the bezel area of the display device to which the light path control member is applied can also be reduced.

Hereinafter, a light path control member according to a second embodiment will be described with reference to FIGS. 15 to 24 .

In the description of the light path control member according to the second embodiment, descriptions of identical or similar elements to those of the light path control member according to the first embodiment described above are omitted, and like reference numerals are given to the same components.

15 to 25, in the light path control member according to the second embodiment, unlike the first embodiment described above, the receiving part 320 of the light conversion unit may be disposed tilted at a certain angle. .

Referring to FIGS. 15 to 18 , the accommodating part 320 may extend in a direction different from the first direction 1A and the second direction 2A.

Accordingly, one end and the other end of at least one of the accommodating parts 320 may contact the first sealing part 510, and one end and the other end of the at least one accommodating part may contact the first sealing part 510. And it may contact the second sealing part 520 .

As the accommodating portion is tilted at a predetermined inclination angle, when the light path control member is combined with a display panel to form a display device, moiré caused by overlapping the accommodating portion of the light path control member and the pattern portion of the display panel phenomenon can be prevented.

That is, one end and the other end of the accommodating portion 320 according to the second embodiment may be formed on both the outer surface in the first direction and the outer surface in the second direction of the light path control member.

FIG. 19 is a cross-sectional view taken along the line J-J′ of FIGS. 15 and 18 . That is, FIG. 19 is a cross-sectional view of one accommodating part of the optical path control member cut in an inclination angle direction.

Referring to FIG. 19 , a light conversion material 330 may be disposed inside the accommodating part 320 . In detail, the light conversion material 330 and the first sealing part 510 may be disposed inside the accommodating part 320 .

The first sealing part 510 is disposed at one end and the other end of the accommodating part 320 in the second direction 2A, and prevents the light conversion material 330 disposed inside the accommodating part 320. can be sealed.

That is, at least one accommodating part among the plurality of accommodating parts of the light conversion unit may be disposed in contact only with the first sealing part 510 .

The light conversion material 330 inside the accommodating part 320 is sealed by the first sealing part 510, so that leakage to the outside of the light path control member can be prevented.

The first sealing part 510 disposed in the 1-1 hole h1 - 1 may be disposed in contact with the light conversion material 330 . Also, the first sealing part 510 disposed in the first-second hole h1 - 2 may contact the light conversion material 330 and the first mixed region 810 .

The first mixing region 810 may be a region in which a material of the dam part 600 removed during the manufacturing process of the light path control member and a material of the first sealing part 510 are mixed or separated.

That is, the first mixing region 810 may include the same material as or a different material from the first sealing part 510 .

For example, when the material of the first sealing part 510 and the dam part 600 include the same material, the first mixing region 810 may be an area where the first sealing part 510 extends. there is.

Alternatively, when the materials of the first sealing part 510 and the dam part 600 include different materials, the first mixing region 810 is formed when the materials of the first sealing part 510 and the dam part 600 are mixed. It may be a region where materials of the first sealing part 510 and the dam part 600 are not mixed and separated while having an interface.

The generation of air inside the accommodating part 320 can be minimized by the first mixing region 810 disposed inside the accommodating part 320 .

That is, as the injection amount of the material of the dam part 600 in any one receiving part changes, the size of the space area between the first sealing part 510 and the dam part 600 may change, and inside this space area By disposing the sealing material of the first sealing part 510 in an appropriate amount, the inside of the accommodation part may be filled while filling the first sealing part 510 and the light conversion material 330 .

Accordingly, it is possible to prevent the generation of air bubbles due to voids in the accommodating part 320 and the resulting light leakage.

FIG. 20 is a cross-sectional view taken along the line K-K′ of FIGS. 15 and 18 . That is, FIG. 20 is a cross-sectional view of the outermost accommodating portion of the light path control member cut in the direction of the inclination angle.

Referring to FIG. 20 , a light conversion material 330 may be disposed inside the accommodating part 320 . In detail, the light conversion material 330 and the first sealing part 510 and the second sealing part 520 may be disposed inside the accommodating part 320 .

The first sealing part 510 and the second sealing part 520 may seal the light conversion material 330 disposed inside the accommodating part 320 .

That is, the first sealing part 510 may seal the end of the receiving part 320 in the outer surface direction in the second direction, and the second sealing part 520 may seal the end of the receiving part 320. ) Of the ends of the outer surface in the first direction may be sealed.

That is, at least one accommodating part among the plurality of accommodating parts of the light conversion unit may be disposed in contact with the first sealing part 510 and the second sealing part 520 .

The light conversion material 330 inside the accommodating part 320 is sealed by the first sealing part 510 and the second sealing part 520 to prevent the light conversion material from leaking out. can

The first sealing part 510 disposed in the 1-1 hole h1 - 1 may be disposed in contact with the light conversion material 330 . Alternatively, the first sealing part 510 disposed in the 1-1 hole h1 - 1 may contact the light conversion material 330 and the second mixed region 820 .

The second mixed region 820 may be a region including both the first sealing part 510 and the light conversion material 330 .

That is, in the area where the first sealing part 510 disposed in the 1-1 hole h1-1 overlaps the containing part 320, some sealing material penetrates into the containing part 320, or The light conversion material 330 may penetrate into the first hole h1 - 1 .

In the second mixing region 820 , the light conversion material 330 and the sealing material may be disposed to be phase-separated from each other or mixed with each other.

In addition, in the first sealing part 510 disposed in the 1-1 hole h1-1, a part of the sealing material in the area overlapping the accommodating part 320 penetrates into the accommodating part 320, The first sealing part 510 can improve the adhesive property of the second sealing part by an anchoring effect, thereby preventing the second sealing part from being filmed off.

Also, the second sealing part 520 disposed in the 2-1 hole h2 - 1 may be disposed in contact with the light conversion material 330 . In detail, one surface facing the first sealing part among the surfaces of the second sealing part 520 may contact the light conversion material 330 . In addition, the light conversion material 330 may be present in the direction of the other surface opposite to the one surface, so that the light conversion material 330 may be in contact with the light conversion material 330 . In addition, a second mixed region including both the light conversion material 330 and the sealing material may be located in a direction of the other surface opposite to the one surface.

FIG. 21 is a cross-sectional view taken along the line L-L' of FIGS. 15 and 18 . That is, FIG. 21 is a cross-sectional view taken along the extension direction of the second sealing part of the light path control member.

Referring to FIG. 21 , the second sealing portion 520 may be formed through the second substrate 120, the second electrode 220, and the buffer layer 410, and the accommodating portion 320 And it may be formed by removing a part of the barrier rib portion 310 . Also, the second sealing part 520 may be formed to cross the accommodating part 320 and the partition wall part 310 . That is, the partition wall portion 310 and the accommodating portion 320 may be alternately disposed under the second sealing portion 520 .

A light conversion material 330 may be disposed inside the accommodating portion 320 that is not removed. In detail, when the light conversion material 330 is filled inside the accommodating part 320, one end of the light converting material 330 inside the accommodating part 320 is sealed by the first sealing part 510 Therefore, movement of the light conversion material can be minimized. Then, by forming the 2-1 hole h2-1 and forming the second sealing portion 520, the light conversion material remaining in the receiving portion under the second sealing portion may be sealed. That is, the second sealing part 520 may seal the light conversion material 330 while contacting the side surface and the top surface of the light conversion material 330 .

Preferably, when the second sealing part is formed, both the accommodating part and the barrier rib part are removed, so that the light conversion material can be prevented from leaking out.

Meanwhile, a third mixing area may be formed in an area where the second sealing part 520 and the accommodating part 320 overlap, that is, come into contact with each other.

The third mixed region may be a region where the second sealing part 520 and the light conversion material 330 are mixed.

That is, in the area where the second sealing part 520 disposed in the 2-1 hole h2-1 overlaps with the accommodating part 320, some sealing material penetrates into the accommodating part 320, or The light conversion material may penetrate into the 2-1 hole h2 - 1 and be mixed with the light conversion material 330 .

Accordingly, the second sealing part 520 can improve the adhesive property of the second sealing part by the anchor effect, thereby preventing the second sealing part from being filmed.

Meanwhile, FIG. 22 is an enlarged view of area A of FIG. 18. Referring to FIG. 22, the first sealing portion 510 disposed in the dam portion 600 and the 1-2 hole h1-2 ) may be disposed to protrude further toward the end of the second substrate than one end of the second connection area CA2 in the first direction.

For example, the distance between the end of the first sealing part 510 and the end of the second substrate 120 in the first direction is the distance between the end of the second connection area CA2 and the end of the second substrate 120. It can be smaller than the distance between the ends in one direction.

That is, the first width W1 between the end of the first sealing part 510 defined as the open area OA and the end of the second substrate 120 in the first direction is the second connection area CA2. ) may be smaller than the second width W2 between the end of the electrode connection part 700 and the end of the second substrate 120 in the first direction.

In this case, when the second substrate 120 includes a plurality of electrode connection parts 700, the second width W2 is the distance between the outermost electrode connection part and the end of the second substrate 120 in the first direction. width can be defined.

Also, a third width W3 between the first sealing part 510 disposed in the 1-2 hole h1-2 and the electrode connection part 710 may be greater than the second width W2. . Through this, it is possible to secure a space for forming a dam between the first sealing part 510 and the electrode connection part 700, and referring to FIG. It is possible to prevent the flow of current flowing between the second electrode 220 and the electrode connection part 700 from being disturbed by flowing out into the third hole h3 to be formed.

Meanwhile, FIG. 23 is an enlarged view of area B of FIG. 18. Referring to FIG. 23, a plurality of accommodating units may be disposed in the open area OA.

In detail, 3 or more, 5 or more, 10 or more, 15 or more, or 20 or more accommodating units may be disposed in the open area OA.

Also, the width W4 of the open area OA may be 100 um or more, 300 um or more, 600 um or more, 800 um or more, or 1,000 um or more.

When less than 3 accommodating parts or less than 100um in width are disposed in the open area OA, the accommodating part disposed between the first sealing part 510 and the second sealing part 520 in the electrode connection part ( 320) Since sufficient current and voltage cannot be applied to the internal light conversion material 330, light conversion efficiency may be lowered. In addition, when the width of the open area OA is too small, disconnection may occur during manufacturing, resulting in reduced process efficiency.

In addition, one or more, two or more, three or more, four or more, or five or more accommodating units may contact the side surface of the first sealing unit 510 toward the open area. This is formed by tilting the accommodating portion 320, and since a large number of light conversion materials can be formed in the accommodating portion close to the open area among the plurality of accommodating portions, the light conversion area can be further widened. In FIG. 23 below, it is illustrated that one accommodating part contacts the side surface of the open area side of the first sealing part 510, but as described above, the number of contacting accommodating parts is not limited thereto.

Meanwhile, FIG. 24 is an enlarged view of region C of FIG. 18 . Referring to FIG. 24 , the accommodating part 320 may be inclined at a certain angle.

In detail, when the receiving part is defined as an acute angle with the extension line of the first sealing part 510 disposed in the 1-2 hole (h1-2), the tilting angle of the receiving part is defined as the tilting angle θ1 of the receiving part. (θ1) is an imaginary line connecting one end of the 1-1 hole h1-1 in the first direction to one end of the 1-2 hole h1-2 in the first direction, and the first It may be smaller than the acute angle θ2 of the first sealing part 510 disposed in the -2 hole h1 - 2 .

Accordingly, it is possible to minimize the area of the accommodating portion where the light conversion material is not injected due to the open area among the plurality of accommodating portions. That is, in the light path control member, a large number of light conversion areas of the light path control member can be formed only when the angle between the width of the open area in the first direction and the accommodating portion is formed at an acute angle. That is, when the light path control member forms a right angle between the width of the open area in the first direction and the angle formed by the accommodating part, the light conversion material may not be formed on the entire side surface of the substrate corresponding to the open area. A light conversion area of the light path control member is reduced.

For example, the tilting angle of the receiving part may be 60° to 89°, 65° to 87°, or 75° to 85°.

Meanwhile, referring to FIG. 25 , the accommodating part 320 may include an area in which the light conversion material 330 is not included.

In detail, FIG. 25 is an enlarged view of region D of FIG. 18 , wherein no light conversion material is disposed in the accommodating part, or a light conversion material is disposed only in a part of the accommodating part, or only in some accommodating parts among a plurality of accommodating parts. A light conversion material may be disposed. That is, an accommodating part may be formed outside the sealing part, and an area preventing penetration of external impurities outside the sealing part may be formed by forming an area without a light conversion material in the accommodating part outside the sealing part. Through this, penetration of external impurities into the light conversion material may be minimized.

In the light path control member according to the second embodiment, the accommodating part may be tilted at a predetermined inclination angle with respect to the second direction of the substrate.

Accordingly, when the light path control member and the display panel are combined to form a display device, it is possible to prevent a moire phenomenon from occurring due to overlapping of a pattern of the accommodation part of the light path control member and a pixel pattern of the display panel.

Accordingly, when a user views the display device from the outside, it is possible to prevent a pattern from being visually recognized due to a moiré phenomenon caused by overlapping the pattern of the receiving part of the light path control member and the pixel pattern of the display panel.

In addition, the light path control member according to the second embodiment can prevent the light conversion material from leaking out to the side of the light path control member as the accommodating part is inclined.

That is, since the first sealing part and the second sealing part are disposed at the ends of the light path control member in the first and second directions to seal the light conversion material inside the accommodating part, the light conversion material does not leak out or external impurities Penetration into the light conversion material may be minimized.

In addition, by forming a region where the sealing portion and the light conversion material are mixed, adhesive properties of the sealing portion may be improved by an anchor effect. Accordingly, adhesion of the sealing portion may be improved to prevent film separation, and thus reliability and sealing characteristics of the light path control member may be improved.

Hereinafter, a light path control member according to a third embodiment will be described with reference to FIGS. 26 to 30 .

In the description of the light path control member according to the third embodiment, descriptions of identical or similar elements to those of the light path control member according to the first and second embodiments described above are omitted, and the same reference numerals are assigned to the same components.

Referring to FIGS. 26 to 29 , in the light path control member according to the third embodiment, the first protrusion PA1 and the second protrusion PA2 may overlap each other. That is, unlike the first and second embodiments, the first protrusion PA1 and the second protrusion PA2 may not be displaced from each other, but may be entirely or partially overlapped with each other.

Accordingly, when the light path control member is manufactured, alignment of the first substrate 110 and the second substrate 120 is facilitated, resulting in a process of laminating the first substrate and the second substrate. It is possible to prevent defects according to tolerances and improve process efficiency.

FIG. 30 is a cross-sectional view taken along the line M-M' of FIG. 26; That is, FIG. 30 is a cross-sectional view of the second connection area CA2 disposed on the second protrusion PA2 in the second direction.

Referring to FIG. 30 , a second connection area CA2 may be disposed on the second protrusion PA2, and a third hole h3 may be formed in the second connection area CA2. An electrode connection part 700 containing a conductive material may be disposed inside the third hole h3.

The third hole h3 may pass through the second substrate 120 , the second electrode 220 , and the buffer layer 420 . Also, the third hole h3 may partially pass through the light conversion unit 300 .

Accordingly, the third hole h3 may be formed while exposing the light conversion unit 300 . Therefore, the electrode connection part 700 disposed inside the third hole h3 may be disposed apart from the adhesive layer 410 .

In addition, an insulating layer 750 disposed between the electrode connection part 700 and the adhesive layer 410 may be disposed inside the third hole h3.

When the electrode connection part 700 and the adhesive layer 410 are disposed apart from each other and the insulating layer 750 disposed between the electrode connection part 700 and the adhesive layer 410 is disposed, the adhesive layer 410 Electrical connection between the electrode connection portion 700 and the first electrode 210 can be prevented by the permittivity.

Accordingly, restrictions in selecting a material for the adhesive layer 410 may be reduced, and electrical short circuits due to dielectric constant of the adhesive layer 410 may be prevented, thereby improving driving characteristics and reliability of the light path control member.

In the light path control member according to the third embodiment, the first protrusion of the first substrate and the second protrusion of the second substrate may be disposed to overlap each other.

Accordingly, in the process of manufacturing the light path control member, defects due to a bonding process may be prevented, and process efficiency may be improved.

In addition, the electrode connection part disposed inside the third hole, which is the second connection area, is spaced apart from the adhesive layer, and an insulating layer is disposed between the electrode connection part and the adhesive layer so that the electrode connection part and the first electrode are electrically connected by the permittivity of the adhesive layer. can prevent it from happening.

Therefore, since the material of the adhesive layer can be freely selected and an electrical short circuit according to the permittivity of the adhesive layer can be prevented, driving characteristics and reliability of the light path control member can be improved.

Hereinafter, a method of manufacturing an optical path control member according to embodiments will be described with reference to FIGS. 31 to 48 . In the description of the manufacturing method of the light path control member according to the embodiments, the same reference numerals are assigned to the same elements and descriptions of the same or similar elements as those of the light path control member according to the above-described embodiments.

Referring to FIGS. 31 and 32 , the first substrate 110 and the second substrate 120 may be bonded through the adhesive layer 410 . That is, the first substrate 110 and the second substrate 120 may be bonded so that the second substrate 120 is disposed on the first substrate 110 .

Accordingly, one surface of the adhesive layer 410 is exposed in the first hole H1, the second hole H2, the third hole H3, and the first protrusion PA1 formed in the second substrate 120. It can be.

Next, referring to FIGS. 33 and 34 , the dam portion 600 may be formed by filling the second hole H2 with a material forming the dam portion 600 .

The dam part 600 may partially or entirely fill an area between the first hole H1 and the second hole H2 along the accommodating part 320 .

The dam part 600 may include polyurethane acrylate, but the embodiment is not limited thereto.

Next, referring to FIGS. 35 and 36 , a light conversion material 330 including light conversion particles 330a and a dispersion 330b is injected into the accommodating part 320 through the first hole H1. can do. Accordingly, the light conversion material 330 may be filled in the accommodating part 320 , the first hole H1 and the second hole H2 .

The accommodating part 320 is tilted at a predetermined inclination angle with respect to the second direction 2A, and accordingly, the light conversion material 330 may also be tilted at a predetermined inclination angle to be filled.

For example, after designating one of the first holes H1 facing each other as an injection part and designating the other first hole H1 as an exit part, a light conversion material is applied inside the injection part. After dispensing, the light conversion material may be filled into the accommodating part 320 by a capillary method in which the light conversion material is sucked into the outlet part.

Next, referring to FIGS. 37 and 38 , a sealing material may be filled in the first hole H1 and the second hole H2 to form a first sealing part 510 .

The first sealing part 510 may include the same material as the dam part 600, but the embodiment is not limited thereto.

Meanwhile, in order to easily fill the sealing material into the first hole H1, the process of forming an injection passage of the sealing material by cleaning the inside of the first hole H1 before filling the sealing material (for example, For example, a cleaning process) may be additionally performed.

Meanwhile, the first sealing part 510 may partially move into the receiving part 320 while being disposed inside the first hole H1 and the second hole H2. Accordingly, the light conversion material 510 and the sealing material may be co-located inside the accommodating part 320 .

Next, referring to FIG. 39 , the electrode connection portion 700 of the second substrate 120 may be formed by filling the third hole H3 with a conductive material.

The electrode connection part 700 may be a second connection electrode disposed in contact with the second electrode 220 in the third hole H3 and connected to the printed circuit board.

Subsequently, referring to FIGS. 40 to 43 , a fourth hole H4 and a fifth hole H5 may be additionally formed. In detail, a fourth hole H4 and a fifth hole H5 extending in the second direction may be formed on the second substrate 120 . That is, at least one of the fourth hole H4 and the fifth hole H5 may be formed by irradiating a laser beam from the second substrate 120 toward the first substrate 110 .

At least one of the fourth hole H4 and the fifth hole H5 may overlap and overlap the first hole H1 and the second hole H2.

As shown in FIG. 46 below, when a cutting process is performed to minimize the bezel of the display or light path control subhead, the fourth hole H4 and the first Only at least one hole among the five holes H5 may be formed.

Alternatively, the fourth hole or the fifth hole may not be formed. After the cutting process, the ink of the housing part whose side is exposed is blocked by the first sealing part, and the pressure difference between the air pressure inside the housing part and the air pressure outside the light path control member causes the light inside the housing part to be blocked by the first sealing part. The conversion material may not flow out of the light path control member.

However, since reliability may deteriorate during mode conversion several times, the mode conversion reliability of the entire optical path control subunit can be improved by forming the fourth hole or the fifth hole to seal the side surface of the optical path control subunit.

Referring to FIGS. 41 to 43 , the fourth hole H4 and the fifth hole H5 may have various depths.

For example, referring to FIG. 41 , the fourth hole H4 and the fifth hole H5 pass through the second substrate 120, the second electrode 220, and the buffer layer 420, and , It may be formed by removing a part of the light conversion unit 300.

Alternatively, referring to FIG. 42 , the fourth hole H4 and the fifth hole H5 are formed by the second substrate 120, the second electrode 220, the buffer layer 420, and the light conversion unit. It may be formed through (300).

Alternatively, referring to FIG. 43 , the fourth hole H4 and the fifth hole H5 are formed by the second substrate 120, the second electrode 220, the buffer layer 420, and the light conversion unit. 300, the adhesive layer 410, and the first electrode 210, and may be formed by removing a portion of the first substrate 110.

Although the drawing shows that the fourth hole H4 and the fifth hole H5 are formed to the same depth, the embodiment is not limited thereto, and the fourth hole H4 and the fifth hole ( H5) may be formed at different depths.

Next, referring to FIGS. 44 and 45 , a sealing material may be disposed inside the fourth hole H4 and the fifth hole H5 to form a second sealing part 520 .

The second sealing part 520 may include the same material as the dam part 600 and the first sealing part 510 described above, but the embodiment is not limited thereto.

Next, referring to FIGS. 46 and 47 , the light path control member of FIG. 47 can be finally manufactured by cutting in the direction of the dotted line in FIG. 46 .

Meanwhile, referring to FIG. 48 , by arranging the cutting lines at various locations, the outer surface of the light path control member may be formed in various shapes.

Through this, the area of the receiving portion where the light conversion material is formed in the light path control member is freely formed to be 10% or more, 20% or more, 25% or more, 30% or more, 40% or more, or 50% or more of the second substrate. can do. In addition, the area of the receiving portion formed with the light conversion material may be adjusted to 10% to 60%, 20% to 50%, or 20% to 40%. Through this, the front transmittance and side transmittance of the light path control member may be adjusted within a desired range. In addition, a bezel area of the display panel on which the light path control member is mounted may be reduced, and an area in which other components required for the display panel may be mounted may be secured.

below. Referring to FIGS. 49 to 53 , a display device and a display device to which the light path control member according to the exemplary embodiment is applied will be described.

Referring to FIGS. 49 and 50 , the light path control member 1000 according to the exemplary embodiment may be disposed on or below the display panel 2000 .

The display panel 2000 and the light path control member 1000 may be disposed while being adhered to each other. For example, the display panel 2000 and the light path control member 1000 may be adhered to each other through an adhesive member 1500 . The adhesive member 1500 may be transparent. For example, the adhesive member 1500 may include an adhesive or an adhesive layer including an optically transparent adhesive material.

The adhesive member 1500 may include a release film. In detail, when bonding the light path member and the display panel, the light path control member and the display panel may be bonded after removing the release film.

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 a surface viewed by a user on the liquid crystal panel is defined as an upper portion of the liquid crystal panel, the light path control member may be disposed below the liquid crystal panel. In the display panel 2000, a first substrate 2100 including a thin film transistor (TFT) and a pixel electrode and a second substrate 2200 including color filter layers are bonded with a liquid crystal layer interposed therebetween. structure can be formed.

In addition, in the display panel 2000, a thin film transistor, a color filter, and a black electrolyte are formed on a 1' substrate 2100, and a 2' substrate 2200 is formed on the 1' substrate 2100 with a liquid crystal layer interposed therebetween. It may also be a liquid crystal display panel of a COT (color filter on transistor) structure bonded with the. That is, a thin film transistor may be formed on the first substrate 2100, a protective film may be formed on the thin film transistor, and a color filter layer may be formed on the protective film. In addition, a pixel electrode contacting the thin film transistor is formed on the first substrate 2100 . At this time, in order to improve the aperture ratio and simplify the mask process, the black electrolyte may be omitted and the common electrode may be formed to serve as the black electrolyte.

In addition, when the display panel 2000 is a liquid crystal display panel, the display device may further include a backlight unit 3000 providing light from a rear surface of the display panel 2000 .

That is, as shown in FIG. 49 , the light path control member is disposed below the liquid crystal panel and above the backlight unit 3000, so that the light path control member is disposed between the backlight unit 3000 and the display panel 2000. can be placed in

Alternatively, as shown in FIG. 50 , when the display panel 2000 is an organic light emitting diode panel, the light path control member may be formed above the organic light emitting diode panel. That is, when a surface viewed by a user on an organic light emitting diode panel is defined as an upper portion of the organic light emitting diode panel, the light path control member may be disposed above the organic light emitting diode panel. The display panel 2000 may include a self-light emitting device that does not require a separate light source. In the display panel 2000 , a thin film transistor may be formed on a 1′ substrate 2100 , and an organic light emitting element contacting the thin film transistor may be formed. The organic light emitting diode may include an anode, a cathode, and an organic light emitting layer formed between the anode and the cathode. In addition, a 2' substrate 2200 serving as an encapsulation substrate for encapsulation may be further included on the organic light emitting device.

Also, although not shown in the drawings, a polarizer may be further disposed between the light path control member 1000 and the display panel 2000 . The polarizer may be a linear polarizer or an antireflection polarizer. For example, when the display panel 2000 is a liquid crystal display panel, the polarizer may be a linear polarizer. Also, when the display panel 2000 is an organic light emitting diode panel, the polarizing plate may be an antireflection polarizing plate.

In addition, an additional functional layer 1300 such as an antireflection layer or an antiglare may be further disposed on the light path control member 1000 . In detail, the functional layer 1300 may be bonded to one surface of the first substrate 110 of the light path control member. Although not shown in the drawing, the functional layer 1300 may be adhered to the first substrate 110 of the light path control member through an adhesive layer. In addition, a release film for protecting the functional layer may be further disposed on the functional layer 1300 .

In addition, a touch panel may be further disposed between the display panel and the light path control member.

Although the light path control member is illustrated as being disposed on the upper part of the display panel, the embodiment is not limited thereto, and the light control member is located at a position where light can be adjusted, that is, the lower part of the display panel or the display panel. It may be disposed in various positions, such as between the second substrate and the first substrate.

In addition, although the light conversion unit of the light path control member according to the embodiment is shown in a direction parallel or perpendicular to the outer surface of the second substrate in the drawing, the light conversion unit may be formed to be inclined at a predetermined angle with the outer surface of the second substrate. may be Accordingly, a moire phenomenon occurring between the display panel and the light path control member may be reduced.

Referring to FIGS. 51 to 53 , the light path control member according to the exemplary embodiment may be applied to various display devices.

Referring to FIGS. 51 to 53 , the light path control member according to the embodiment may be applied to a display device displaying a display.

For example, when power is applied to the light path control member as shown in FIG. 51, the accommodating part functions as a light transmitting part so that the display device can be driven in open mode, and power is applied to the light path control member as shown in FIG. When not applied, the accommodating portion functions as a light blocking portion, and the display device may be driven in a light blocking mode.

Accordingly, the user can easily drive the display device in a privacy mode or a normal mode according to the application of power.

Light emitted from the backlight unit or the self-light emitting element may move in a direction from the first substrate to the second substrate. Alternatively, light emitted from the backlight unit or the self-light emitting device may also move in a direction from the second substrate to the first substrate.

Also, referring to FIG. 53 , the display device to which the light path control member according to the embodiment is applied may also be applied to the interior of a vehicle.

For example, the display device including the light path control member according to the embodiment may display information about the vehicle and an image for checking the movement path of the vehicle. The display device may be disposed between a driver's seat and a front passenger's seat of a vehicle.

In addition, the light path control member according to the embodiment may be applied to an instrument panel displaying vehicle speed, engine, and warning signals.

In addition, the light path control member according to the embodiment may be applied to the front glass (FG) or left and right window glass of the vehicle.

The features, structures, effects, etc. described in the foregoing embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, etc. illustrated in each embodiment can be combined or modified with respect to other embodiments by those skilled in the art in the field to which the embodiments belong. Therefore, contents related to these combinations and variations should be construed as being included in the scope of the present invention.

In addition, although the embodiments have been described above, these are merely examples and do not limit the present invention, and those of ordinary skill in the field to which the present invention belongs can exemplify the above to the extent that does not deviate from the essential characteristics of the present embodiment. It will be seen that various variations and applications that have not been made are possible. For example, each component specifically shown in the embodiments can be modified and implemented. And differences related to these variations and applications should be construed as being included in the scope of the present invention as defined in the appended claims.

Claims (25)

a first substrate on which a first direction and a second direction are defined;
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
A light conversion unit disposed between the first electrode and the second electrode,
The light conversion unit includes a plurality of barrier rib portions, a plurality of accommodating portions, and a base portion,
A light conversion material is disposed inside the plurality of accommodating portions,
The second substrate and the second electrode include a cutting region penetrating the second substrate and the second electrode,
The cutting area is
a 1-1st cutting area and a 1-2nd cutting area disposed facing each other in the second direction; and
A 2-1st cutting area and a 2-2nd cutting area disposed facing each other in the first direction;
A first sealing part is disposed in the 1-1st cutting area and the 1-2nd cutting area,
A second sealing part is disposed inside the 2-1st cutting area and the 2-2nd cutting area,
The first sealing part is disposed inside the plurality of accommodating parts,
At least one accommodating part among the plurality of accommodating parts includes a second mixing area including both the light conversion material and the material of the first sealing part,
The second substrate includes an open area formed between the first-second cutting area and the second-second cutting area. According to claim 1,
Further comprising a buffer layer disposed between the second electrode and the light conversion unit,
At least one of the 1-1st cutting area, the 1-2nd cutting area, the 2-1st cutting area, and the 2-2nd cutting area penetrates the buffer layer and the base portion. According to claim 2,
Further comprising an adhesive layer disposed between the first electrode and the light conversion unit,
At least one sealing part of the first sealing part and the second sealing part is disposed in direct contact with the adhesive layer. According to claim 1,
The light path control member of claim 1, wherein the first sealing part is an outermost surface of the light path control member. According to claim 1,
The second sealing part is an optical path control member disposed inside the plurality of accommodating parts. According to claim 1,
At least one accommodating part of the plurality of accommodating parts is in contact with the first sealing part,
At least one accommodating part of the plurality of accommodating parts contacts the first sealing part and the second sealing part. According to claim 1,
The light path control member of the plurality of accommodating portions extending in a direction different from the second direction. According to claim 1,
The first substrate includes a first protrusion,
The second substrate includes a second protrusion,
The light path control member further comprising a dam portion disposed on the first protrusion. According to claim 8,
The first electrode is exposed on the first protrusion,
A third cutting region penetrating the second substrate and the second electrode is formed in the second protrusion,
An optical path control member having an electrode connecting portion connected to a side surface of the second electrode disposed inside the third cutting region. in paragraph 9
The dam part is disposed between the electrode connection part and the first sealing part. According to claim 9,
The light path control member of claim 1 , wherein the electrode connection part includes a material different from that of at least one of the first electrode and the second electrode. According to claim 10,
The light path control member further comprising an adhesive layer disposed between the first electrode and the light conversion unit. According to claim 12
An optical path control member further comprising an insulating layer disposed between the electrode connection portion and the adhesive layer. According to claim 8,
The optical path control member of claim 1 , wherein a first mixing region containing both the material of the first sealing part and the material of the dam is disposed between the first sealing part and the dam part. According to claim 1,
An optical path control member in which a plurality of accommodating units are disposed in the open area. According to claim 1,
and a third mixing region containing both the light conversion material and the second sealing material between the second sealing part and the light conversion material. According to claim 1,
The light path control member of claim 1 , wherein the depths of the 1-1st cutting area and 1-2nd cutting area are different from each other. According to claim 1,
The light path control member of claim 1 , wherein lengths of the 2-1st cutting region and the 2-2nd cutting region in the second direction are different from each other. According to claim 9,
The light path control member of claim 1 , wherein the current and voltage applied from the electrode connection portion are transferred toward the plurality of accommodating portions through the open area and the second electrode. According to claim 9,
The light path control member wherein the first protrusion and the second protrusion are displaced from each other. According to claim 1,
The optical path control member having a width of the open area of 100 μm or more. According to claim 1,
At least one accommodating part among the plurality of accommodating parts includes an area in which the light conversion material is not disposed. a panel including at least one of a display panel and a touch panel; and
A display device comprising the light path control member of any one of claims 1 to 22 disposed above or below the panel. 24. The method of claim 23,
The panel includes a backlight unit and a liquid crystal display panel,
The light path control member is disposed between the backlight unit and the liquid crystal display panel,
The light emitted from the backlight unit moves in a direction from the first substrate to the second substrate. 24. The method of claim 23,
The panel includes an organic light emitting diode panel,
The light path control member is disposed on the organic light emitting diode panel,
The display device of claim 1 , wherein light emitted from the panel moves in a direction from the first substrate to the second substrate.

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