Light route control member and display having the same

Abstract

An optical path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; and a second electrode disposed under the second substrate. and includes a light conversion unit comprising a plurality of receiving portions disposed between the first electrode and the second electrode, wherein a light conversion material is disposed therein, the first substrate includes a first-1 region overlapping with the receiving portion and a first-2 region disposed at the edge of the first substrate, the second substrate includes a second-1 region overlapping with the receiving portion and a second-2 region disposed at the edge of the second substrate, the first electrode includes a first-1 electrode portion disposed on the first-1 region and the first-2 region and a first-2 electrode portion disposed on the first-2 region, the second electrode includes a second-1 electrode portion disposed on the second-1 region and the second-2 region and a second-2 electrode portion disposed on the second-2 region, wherein the area of ​​the first-1 electrode portion is larger than the area of ​​the first-2 electrode portion, and the area of ​​the second-1 electrode portion is the area of ​​the second-2 electrode portion It is larger than the area.

Description

Technology Field

[0001] The embodiment relates to an optical path control member and a display device including the same. Background Technology

[0002] A light-blocking film is a light path control component that blocks the transmission of light from a light source. It is attached to the front of a display panel, which is a display device used in mobile phones, laptops, tablet PCs, in-car navigation systems, and in-car touch screens. It is used to adjust the viewing angle of light according to the angle of incidence when the display emits an image, thereby enabling the user to display clear image quality at the required viewing angle.

[0003] In addition, the light path control member can be used in vehicles or building windows to partially block external light to prevent glare or to prevent visibility from the outside to the inside.

[0004] In other words, the light path control member controls the path of light to block light in a specific direction and transmit light in a specific direction. Accordingly, the light path control member controls the transmission angle of light, thereby controlling the user's field of view.

[0005] Meanwhile, such light path control members can be classified into a light-blocking film that can always control the viewing angle regardless of the surrounding environment or the user's environment, and a switchable light-blocking film that allows the user to turn the viewing angle control on and off depending on the surrounding environment or the user's environment.

[0006] Such a light path control member can be implemented by filling the pattern portion with a light conversion material comprising particles that can move according to the application of voltage and a dispersion liquid that disperses them, so that the pattern portion changes into a light-transmitting portion and a light-blocking portion through the dispersion and aggregation of particles.

[0007] Since the above optical path control member requires voltage application for controlling the user's viewing angle, the optical path control member may have a lower electrode and an upper electrode disposed at the bottom and top, respectively.

[0008] In this case, transparent electrodes may be used for the brightness of the optical path control member for the lower electrode and the upper electrode. Such transparent electrodes have high resistance characteristics, but as the area increases, there is a problem of electric field non-uniformity occurring between the center and the periphery of the electrode.

[0009] As a result, there is a problem in that the light conversion characteristics of the center and periphery of the light path control member become non-uniform.

[0010] Therefore, a new optical path control member with a structure capable of solving the above-mentioned problems is required. The problem to be solved

[0011] The embodiment aims to provide an optical path control member having improved driving characteristics. means of solving the problem

[0012] An optical path control member according to an embodiment comprises: a first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; and a second electrode disposed under the second substrate. and includes a light conversion unit comprising a plurality of receiving portions disposed between the first electrode and the second electrode, wherein a light conversion material is disposed therein, the first substrate includes a first-1 region overlapping with the receiving portion and a first-2 region disposed at the edge of the first substrate, the second substrate includes a second-1 region overlapping with the receiving portion and a second-2 region disposed at the edge of the second substrate, the first electrode includes a first-1 electrode portion disposed on the first-1 region and the first-2 region and a first-2 electrode portion disposed on the first-2 region, the second electrode includes a second-1 electrode portion disposed on the second-1 region and the second-2 region and a second-2 electrode portion disposed on the second-2 region, wherein the area of ​​the first-1 electrode portion is larger than the area of ​​the first-2 electrode portion, and the area of ​​the second-1 electrode portion is the area of ​​the second-2 electrode portion It is larger than the area. Effects of the invention

[0013] The first electrode and the second electrode of the optical path control member according to the embodiment may include electrode portions having different areas, materials, thicknesses, resistances, transparencys, and conductivity. Accordingly, the driving characteristics of the optical path control member can be improved while maintaining the brightness of the optical path control member.

[0014] That is, in the light path control member according to the embodiment, light can be transmitted through the light path control member by the first electrode portion of the first electrode and the second electrode, thereby changing the viewing angle.

[0015] In addition, the optical path control member according to the embodiment can reduce the overall resistance non-uniformity of the optical path control member by the second electrode portion of the first electrode and the second electrode.

[0016] Accordingly, since electric field non-uniformity can be reduced in the region of the optical path control member, the optical path control member can have improved optical conversion characteristics. Therefore, the optical path control member according to the embodiment can have improved driving characteristics. Brief explanation of the drawing

[0017] FIG. 1 is a perspective view of an optical path control member according to an embodiment. Figures 2 and 3 are cross-sectional views of the AA' region of Figure 1. FIG. 4 is a top view of the lower substrate of the optical path control member according to an embodiment. Figure 5 is a cross-sectional view showing the BB' region of Figure 4. FIG. 6 is a top view of the upper substrate of an optical path control member according to an embodiment. Figure 7 is a cross-sectional view showing the CC' region of Figure 6. Figure 8 is a drawing showing another cross-sectional view of the BB' region of Figure 4. Figure 9 is a drawing showing another cross-sectional view of the CC' region of Figure 6. FIGS. 10 and FIGS. 11 are cross-sectional views of a display device to which an optical path control member according to an embodiment is applied. FIGS. 12 to 14 are drawings for explaining an embodiment of a display device to which an optical path control member according to an embodiment is applied. Specific details for implementing the invention

[0018] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the technical concept of the present invention is not limited to some of the described embodiments but can be implemented in various different forms, and within the scope of the technical concept of the present invention, one or more of the components among the embodiments may be selectively combined or substituted.

[0019] In addition, terms used in the embodiments of the present invention (including technical and scientific terms) may be interpreted in a sense that is generally understood by those skilled in the art to which the present invention belongs, unless explicitly and specifically defined otherwise. Terms that are commonly used, such as terms defined in advance, may be interpreted in consideration of their meaning in the context of the relevant technology.

[0020] Furthermore, the 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 include the plural form unless specifically stated otherwise in the text, and when described as “A and at least one of B and C (or more than one),” it may include one or more of all combinations that can be formed from A, B, and C.

[0021] In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the embodiments of the present invention. These terms are used merely to distinguish the components from other components and are not intended to limit the essence, order, or sequence of the components.

[0022] And, where it is stated that a component is 'connected', 'combined', or 'joined' to another component, this may include not only cases where the component is directly connected, combined, or joined to the other component, but also cases where it is 'connected', 'combined', or 'joined' due to another component located between the component and the other component.

[0023] Additionally, where described as being formed or placed on the "top or bottom" of each component, the top or bottom includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or placed between the two components.

[0024] In addition, when expressed as “up” or “down,” it can include the meaning of a downward direction as well as an upward direction relative to a single component.

[0025] Hereinafter, an optical path control member according to an embodiment will be described with reference to the drawings. The optical path control member described below may be a switchable light-blocking film that operates in an open mode and a light-blocking mode depending on the application of power.

[0027] FIG. 1 is a perspective view of an optical path control member according to an embodiment.

[0028] Referring to FIG. 1, the optical path control member (1000) according to the embodiment may include a first substrate (110), a second substrate (120), a first electrode (210), a second electrode (220), and an optical conversion unit (300).

[0029] Additionally, the light path control member (1000) may include an effective area (AA) and a non-effective area (UA). The effective area (AA) is an area where light conversion occurs in the light path control member, and the non-effective area (UA) is an area where light conversion does not occur in the light path control member. That is, the non-effective area (UA) may be a bezel area of ​​the light path control member.

[0030] The first substrate (110) can support the first electrode (210). The first substrate (110) can be rigid or flexible.

[0031] Additionally, the first substrate (110) may be transparent. For example, the first substrate (110) may include a transparent substrate that can transmit light.

[0032] The first substrate (110) may include glass, plastic, or a flexible polymer film. For example, the flexible polymer film may be made of any one of polyethylene terephthalate (PET), polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer (ABS), polymethyl methacrylate (PMMA), polyethylene naphthalate (PEN), polyether sulfone (PES), cyclic olefin copolymer (COC), triacetylcellulose (TAC) film, polyvinyl alcohol (PVA) film, polyimide (PI) film, or polystyrene (PS), and this is merely one example and is not necessarily limited thereto.

[0033] In addition, the first substrate (110) may be a flexible substrate having flexible properties.

[0034] Additionally, the first substrate (110) may be a curved or bent substrate. That is, the optical path control member including the first substrate (110) may also be formed to have flexible, curved, or bent characteristics. As a result, the optical path control member according to the embodiment may be changed to various designs.

[0035] The first substrate (110) can be extended in a first direction (1D), a second direction (2D), and a third direction (3D).

[0036] Specifically, the first substrate (110) may include a first direction (1D) corresponding to the length or width direction of the first substrate (110), a second direction (2D) extending in a direction different from the first direction (1D) and corresponding to the length or width direction of the first substrate (110), and a third direction (3D) extending in a direction different from the first direction (1D) and the second direction (2D) and corresponding to the thickness direction of the first substrate (110).

[0037] For example, the first direction (1D) may be defined as the length direction of the first substrate (110), the second direction (2D) may be defined as the width direction of the first substrate (110) perpendicular to the first direction (1D), and the third direction (3D) may be defined as the thickness direction of the first substrate (110). Alternatively, the first direction (1D) may be defined as the width direction of the first substrate (110), the second direction (2D) may be defined as the length direction of the first substrate (110) perpendicular to the first direction (1D), and the third direction (3D) may be defined as the thickness direction of the first substrate (110).

[0038] Hereinafter, for convenience of explanation, the first direction (1D) is described as the length direction of the first substrate (110), the second direction (2D) as the width direction of the first substrate (110), and the third direction (3D) as the thickness direction of the first substrate (110).

[0039] The first substrate (110) may have a thickness within a set range. For example, the first substrate (110) may have a thickness of 25 μm to 150 μm.

[0041] The first electrode (210) may be disposed on one side of the first substrate (110). Specifically, 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).

[0042] The first electrode (210) may be arranged in a single layer or a multilayer. Specifically, one region of the first substrate (110) may have a single-layer first electrode (210) arranged thereon, and another region of the first substrate (110) may have a multilayer first electrode (210) arranged thereon.

[0043] The first electrode (210) above will be described in detail below.

[0045] The second substrate (120) may be placed on the first substrate (110). Specifically, the second substrate (120) may be placed on the first electrode (210) on the first substrate (110).

[0046] The second substrate (120) may include a material identical or similar to the first substrate (110) described above. For example, the second substrate (120) may include a material identical to or different from the first substrate (110) among the materials of the first substrate (110) described above.

[0047] Additionally, the second substrate (120) may have the same or similar thickness as the first substrate (110) described above. For example, the second substrate (120) may have a thickness of 25 μm to 150 μm.

[0048] In addition, the second substrate (120) may also be extended in a first direction (1D), a second direction (2D), and a third direction (3D), in the same way as the first substrate (110) described above. Hereinafter, for convenience of explanation, the first direction (1D) is described as the length direction of the second substrate (120), the second direction (2D) as the width direction of the second substrate (120), and the third direction (3D) as the thickness direction of the second substrate (120).

[0050] The second electrode (220) may be disposed on one side of the second substrate (120). Specifically, 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 the surface of the second substrate (120) where the second substrate (120) and the first substrate (110) face each other. That is, the second electrode (220) 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).

[0051] The second electrode (220) may be arranged in a single layer or a multilayer. Specifically, one region of the second substrate (120) may have a single-layer second electrode (220) arranged thereon, and another region of the second substrate (120) may have a multilayer second electrode (220) arranged thereon.

[0052] The second electrode (220) above will be described in detail below.

[0054] The first substrate (110) and the second substrate (120) may have the same or different sizes.

[0055] Specifically, the first length extending in the first direction (1D) of the first substrate (110) may have a size equal to or similar to the second length extending in the first direction (1D) of the second substrate (120).

[0056] For example, the first length and the second length may have a size of 300 mm to 400 mm.

[0057] Additionally, the first width extending in the second direction (2D) of the first substrate (110) may have a size that is the same or similar to the second width extending in the second direction of the second substrate (120).

[0058] For example, the first width and the second width may have a size of 150 mm to 200 mm.

[0059] The first substrate (110) and the second substrate (120) may each include a protrusion. For example, the first substrate (110) may include a first protrusion (PA1), and the second substrate (120) may include a second protrusion (PA2).

[0060] The first protrusion (PA1) and the second protrusion (PA2) may be arranged to overlap or not overlap each other in the third direction (3D).

[0061] A connection area connected to an external printed circuit board or a flexible printed circuit board may be formed in each of the first protrusion (PA1) of the first substrate (110) and the second protrusion (PA2) of the second substrate (120).

[0062] Specifically, a first connecting area (CA1) may be disposed on the first protrusion (PA1), and a second connecting area (CA2) may be disposed on the second protrusion (PA2).

[0063] A conductive material may be exposed on the upper surface of the first connection area (CA1) and the second connection area (CA2), respectively. For example, a first electrode (210) may be exposed in the first connection area (CA1), and a second electrode (220) may be exposed in the second connection area (CA2). By doing so, the optical path control member may be electrically connected to an external printed circuit board or a flexible printed circuit board through the first connection area (CA1) and the second connection area (CA2).

[0064] For example, a pad portion may be placed on the first connection area (CA1) and the second connection area (CA2), and a conductive adhesive comprising at least one of an anisotropic conductive film (ACF) and anisotropic conductive paste (ACP) may be placed between the pad portion and the printed circuit board or the flexible printed circuit board to connect the optical path control member and the external printed circuit board.

[0065] Alternatively, a conductive adhesive comprising at least one of an anisotropic conductive film (ACF) and anisotropic conductive paste (ACP) can be placed between the first connection area (CA1) and the second connection area (CA2) and the printed circuit board or flexible printed circuit board to directly connect the optical path control member and the external printed circuit board without a pad portion.

[0067] The light conversion unit (300) may be disposed between the first substrate (110) and the second substrate (120). Specifically, the light conversion unit (300) may be disposed between the first electrode (210) and the second electrode (220).

[0068] 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 first substrate (110), the second substrate (120), and the light conversion unit (300) may be bonded by the adhesive layer and / or the buffer layer.

[0069] For example, a buffer layer (410) is disposed between the first electrode (210) and the light conversion unit (300), thereby improving the adhesion between the first electrode (210) and the light conversion unit (300) which contain different types of materials.

[0070] The buffer layer (410) may have a thickness within a set range. For example, the buffer layer (410) may have a thickness of less than 1 μm.

[0071] In addition, an adhesive layer (420) is disposed between the second electrode (220) and the light conversion unit (300), thereby allowing the second substrate (120) and the light conversion unit (300) to be bonded together.

[0072] The adhesive layer (420) may have a thickness within a set range. For example, the adhesive layer (420) may have a thickness of 10 μm to 30 μm.

[0074] The light conversion unit (300) may include a plurality of partition units (310) and receiving units (320). A light conversion material (330) comprising light conversion particles that move according to the application of voltage and a dispersion liquid that disperses the light conversion particles may be disposed in the receiving unit (320), and the light transmission characteristics of the light path control member may be changed by the light conversion particles.

[0075] Figures 2 and 3 are drawings showing a cross-sectional view taken along A-A' of Figure 1.

[0076] Referring to FIGS. 2 and FIGS. 3, the light conversion unit (300) may include a plurality of partitions (310), a plurality of receiving units (320), and a base unit (350).

[0077] The light conversion unit (300) comprises a plurality of partition units (310) and receiving units (320), and the partition units (310) and receiving units (320) may be arranged alternately. That is, one receiving unit (320) may be arranged between two adjacent partition units (310), and one partition unit (310) may be arranged between two adjacent receiving units (320).

[0078] The base portion (350) may be positioned below the receiving portion (320). Specifically, the base portion (350) may be positioned between the receiving portion (320) and the buffer layer (410). More specifically, the base portion (350) may be positioned between the lower surface of the receiving portion (320) and the upper surface of the buffer layer (410). Accordingly, the light conversion portion (300) may be bonded to the first electrode (210) through the base portion (350) and the buffer layer (410).

[0079] Additionally, an adhesive layer (420) is disposed between the partition (310) and the second electrode (220), and the light conversion unit (300) and the second electrode (220) can be bonded through the adhesive layer (420).

[0080] The base portion (350) is a region formed by releasing a resin material constituting the partition portion (310) and the receiving portion (320) from a mold member to form the partition portion (310) and the receiving portion (320), and may include the same material as the partition portion (310). That is, the base portion (350) and the partition portion (310) may be formed integrally.

[0081] The above partition (310) can transmit light. In addition, the light transmittance of the above receiving portion (320) can change depending on the application of voltage.

[0082] Specifically, a light-converting material (330) may be disposed in the receiving portion (320). The light transmittance of the receiving portion (320) may be varied by the light-converting material (330). The light-converting material (330) may include light-converting particles (330b) that move according to the application of voltage and a dispersion liquid (330a) that disperses the light-converting particles (330b). Additionally, the light-converting material (300) may further include a dispersant, etc., that prevents the aggregation of the light-converting particles (330b).

[0083] Depending on the voltage applied, the light-converting particles (330b) inside the dispersion (330a) may be moved. For example, referring to FIG. 2, the surface of the light-converting particles (330b) inside the dispersion (330a) is charged with a negative charge, and when a positive voltage is applied through at least one of the first electrode (210) and the second electrode (220), the light-converting particles (330b) move toward the first electrode (210) or the second electrode (220), so that the receiving portion (320) can become a light-transmitting portion.

[0084] For example, if the second electrode (220) is in a positive voltage or ground voltage state and the first electrode (220) has a greater positive voltage than the second electrode, the light-converting particles (330b) may move toward the first electrode (210) by means of attraction and aggregate.

[0085] Accordingly, the optical path control member can be operated in a share mode.

[0086] Additionally, referring to FIG. 3, when a negative voltage is applied through at least one of the first electrode (210) and the second electrode (220), the light-converting particles (330b) are dispersed back into the dispersion liquid (330a) by repulsion, and the receiving portion (320) can become a light-blocking portion.

[0087] Accordingly, the light path control member can be operated in a privacy mode.

[0088] The light path control member (1000) may include a sealing portion (500). The sealing portion (500) may be positioned at the edge of the light path control member (1000). The sealing portion (500) may serve to seal both ends of the receiving portion (320). Accordingly, the light conversion material (330) inside the receiving portion (320) may be sealed by the sealing portion (500).

[0089] The sealing portion (500) can be formed by forming a cutting area on the second substrate (120) and filling the cutting area with a sealing material.

[0091] As previously explained, the light path control member includes a first electrode (210) and a second electrode (220) to apply voltage to the light path control member. The first electrode (210) and the second electrode (220) may include transparent electrodes so that light can be transmitted through the light path control member.

[0092] However, the above transparent electrode may have a higher resistance than the metal electrode. Accordingly, as the area of ​​the first electrode (210) and the second electrode (220) increases, a difference in resistance occurs between the central part and the peripheral part of the electrode, and due to this difference in resistance, the electric field difference between the central part and the peripheral part of the optical path control member may become non-uniform.

[0093] Accordingly, since the light conversion characteristics become non-uniform in the central and peripheral parts of the light path control member, the driving characteristics of the light path control member may be degraded.

[0094] Below, the first electrode (210) and the second electrode (220) of the optical path control member capable of solving the above-mentioned problems are described.

[0096] First, with reference to FIGS. 4 and FIGS. 5, a first electrode (210) disposed on a first substrate (110) is described.

[0097] Referring to FIGS. 4 and 5, the first substrate (110) may include a first-1 region (1-1A) and a first-2 region (1-2A). The first-1 region (1-1A) may be defined as an effective region. Specifically, the first-1 region (1-1A) may be a region through which light is transmitted from the light path control member. That is, the first-1 region (1-1A) may be defined as a light conversion region.

[0098] The above 1-1 region (1-1A) may be a region corresponding to the effective region (AA) of the optical path control member described above.

[0099] In the above 1-1 region (1-1A), a plurality of receiving portions (320) and the light-converting material (330) disposed inside the receiving portions (320) are disposed, and in the above 1-1 region (1-1A), the light path is changed by the light-converting material (330) so that the viewing angle can be changed.

[0100] That is, the above 1-1 region (1-1A) can be defined as a region that overlaps with the above receiving portion (320).

[0101] Additionally, the first-2 region (1-2A) may be defined as a non-effective region. Specifically, the first-2 region (1-2A) may be defined as a region where light is not transmitted from the light path control member. That is, the first-2 region (1-2A) may be defined as a region where light is not converted.

[0102] The above 1-2 region (1-2A) may be a region corresponding to the non-effective region (UA) of the optical path control member described above.

[0103] The above first-2 region (1-2A) may have the sealing portion (500) and the first connection region (CA1) disposed therein. Accordingly, an external printed circuit board may be connected to the first connection region (CA1) in the above first-2 region (1-2A).

[0105] The first electrode (210) may include a first-1 electrode portion (211) and a first-2 electrode portion (212). The first-1 electrode portion (211) may be disposed on at least one of the first-1 region (1-1A) and the first-2 region (1-2A). Specifically, the first-1 electrode portion (211) may be disposed on the first-1 region (1-1A) and the first-2 region (1-2A).

[0106] The first-second electrode portion (212) may be disposed on at least one of the first-first region (1-1A) and the first-second region (1-2A). Specifically, the first-second electrode portion (212) may be disposed on the first-second region (1-2A). The first-second electrode portion (212) may be disposed on the entire region or a part of the first-second region (1-2A).

[0107] The first-second electrode portion (212) may be disposed at the edge of the first substrate (110). Specifically, the first-second electrode portion (212) may be disposed extending along the edge of the first substrate (110).

[0108] Accordingly, the first electrode portion (211) may be positioned in contact with the first substrate (110), and the second electrode portion (212) may not be in contact with the first substrate (110). That is, the first electrode portion (211) may be positioned on the first substrate (110), and the second electrode portion (212) may be positioned on the first electrode portion (211).

[0109] The first electrode portion (211) and the second electrode portion (212) may be arranged with different areas.

[0110] Specifically, the area of ​​the first electrode portion (211) may be larger than the area of ​​the first electrode portion (212). That is, the area of ​​the first electrode portion (211) disposed on the first region (1-1A) and the first region (1-2A) of the first substrate (110) may be larger than the area of ​​the first electrode portion (212) disposed on the first region (1-2A).

[0112] In addition, the first electrode portion (211) and the second electrode portion (212) may have different thicknesses.

[0113] Specifically, the thickness (T1-1) of the first electrode portion (211) may be smaller than the thickness (T1-2) of the second electrode portion (212).

[0114] For example, the thickness (T1-1) of the first electrode portion (211) may be 0.1 μm to 0.5 μm. Making the thickness (T1-1) of the first electrode portion (211) less than 0.1 μm is difficult to implement in terms of process, and the sheet resistance of the first electrode portion (211) may increase. In addition, if the thickness (T1-1) of the first electrode portion (211) exceeds 0.5 μm, the overall thickness of the optical path control member may increase.

[0115] Additionally, the thickness (T1-2) of the first-second electrode portion (212) may be 0.1 μm to 5 μm. It may be difficult to implement the thickness (T1-2) of the first-second electrode portion (212) to be less than 0.1 μm in terms of process. Also, if the thickness (T1-2) of the first-second electrode portion (212) exceeds 5 μm, the overall thickness of the optical path control member may increase.

[0116] The thickness (T1-1) of the first electrode portion (211) may be smaller than the thickness (T1-2) of the second electrode portion (212) within the above range.

[0118] In addition, the first electrode part (211) and the first electrode part (212) may include different materials.

[0119] The first electrode portion (211) may include a transparent material. That is, the first electrode portion (211) may include a transparent electrode. For example, the first electrode portion (211) may include a metal oxide such as indium tin oxide, indium zinc oxide, copper oxide, tin oxide, zinc oxide, titanium oxide, etc.

[0120] Since the first electrode portion (211) includes a transparent material, the brightness of the light path control member can be maintained even when the first electrode portion (211) is placed on the first region (1-1A) of the first substrate (110).

[0121] The first-second electrode portion (212) may include an opaque or translucent material. The first-second electrode portion (212) may include a metallic material. For example, the first-second electrode portion (212) may include at least one metal selected from chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), molybdenum (Mo), gold (Au), titanium (Ti), and alloys thereof.

[0122] Since the first-2 electrode portion (212) is placed on the first-2 region (1-2A) of the first substrate (110), even if the first-2 electrode portion (212) includes an opaque metallic material, it does not affect the transmittance of light passing through the light path control member.

[0124] In addition, the first electrode part (211) and the first electrode part (212) may have different resistance values.

[0125] The resistance magnitude of the first electrode portion (211) may be greater than the resistance magnitude of the second electrode portion (212). Specifically, the sheet resistance of the first electrode portion (211) may be greater than the sheet resistance of the second electrode portion (212).

[0126] For example, the sheet resistance of the first electrode portion (211) may be 50 Ω / □ to 2000 Ω / □. Also, the sheet resistance of the first electrode portion (212) may be 0.1 Ω / □ to 50 Ω / □.

[0127] Accordingly, only a high-resistance electrode is disposed in the 1-1 region (1-1A), which is an effective region of the first substrate (110), and a high-resistance electrode and a low-resistance metal can be disposed together in the 1-2 region (1-2A), which is an ineffective region.

[0128] Accordingly, resistance non-uniformity in the entire area of ​​the first substrate (110) can be reduced. That is, when only the first electrode portion (211) with high resistance is placed on the first substrate (110), the resistance may increase as it extends from the central part of the first substrate (110) to the peripheral area at the edge. Accordingly, resistance non-uniformity in the first substrate (110) can be reduced by additionally placing the first electrode portion (212) with low resistance in the first area (1-2A), which is the peripheral area of ​​the first substrate (110).

[0129] Accordingly, since the variation in optical conversion characteristics in each region of the optical path control member due to electric field non-uniformity caused by the resistance difference can be minimized, the driving characteristics of the optical path control member can be improved.

[0131] In addition, the first electrode part (211) and the first electrode part (212) may have different transparencys.

[0132] The transparency of the first electrode portion (211) may be greater than the transparency of the second electrode portion (212). Specifically, the first electrode portion (211) may be more transparent than the second electrode portion (212).

[0133] Since the first electrode portion (211) has high transparency, even if the first electrode portion (211) is placed on the first region (1-1A) of the first substrate (110), light passing through the light path control member can pass through the first electrode portion (211).

[0134] Additionally, the first-2 electrode portion (212) includes an opaque metal material, but is placed on the first-2 region (1-2A) through which light is not transmitted, so it does not affect the transmittance of light passing through the light path control member.

[0136] In addition, the first electrode part (211) and the first electrode part (212) may have different conductivity.

[0137] The conductivity of the first-2 electrode part (212) may be greater than the conductivity of the first-1 electrode part (211).

[0138] Since the conductivity of the first-2 electrode part (212) is relatively greater than the conductivity of the first-1 electrode part (211), the electrical connection characteristics between the optical path control member and the external printed circuit board can be improved.

[0139] That is, the first-2 electrode portion (212) is positioned in the first connection area (CA1) in the first-2 region (1-2A), and accordingly, the first connection area (CA1) may contain a highly conductive material. Accordingly, when connecting the optical path control member and the external printed circuit board through the first connection area (CA1), electrical connection characteristics can be improved.

[0141] Hereinafter, with reference to FIGS. 6 and FIGS. 7, a second electrode (210) disposed on a second substrate (120) will be described.

[0142] Referring to FIGS. 6 and 7, the second substrate (120) may include a second-1 region (2-1A) and a second-2 region (2-2A). The second-1 region (2-1A) may be defined as an effective region. Specifically, the second-1 region (2-1A) may be a region through which light is transmitted from the light path control member. That is, the second-1 region (2-1A) may be defined as a light conversion region.

[0143] The above 2-1 region (2-1A) may be a region corresponding to the effective region (AA) of the optical path control member described above.

[0144] In the above 2-1 region (2-1A), a plurality of receiving portions (320) and the light-converting material (330) disposed inside the receiving portions (320) are disposed, and in the above 2-1 region (2-1A), the light path is changed by the light-converting material (330) so that the viewing angle can be changed.

[0145] That is, the above 2-1 region (2-1A) can be defined as a region that overlaps with the above receiving portion (320).

[0146] Additionally, the 2-2 region (2-2A) may be defined as a non-effective region. Specifically, the 2-2 region (2-2A) may be defined as a region where light is not transmitted from the light path control member. That is, the 2-2 region (2-2A) may be defined as a region where light is not converted.

[0147] The above 2-2 region (2-2A) may be a region corresponding to the non-effective region (UA) of the optical path control member described above.

[0148] The above 2-2 region (2-2A) may have the sealing portion (500) and the second connection region (CA2) disposed therein. Accordingly, an external printed circuit board may be connected to the second connection region (CA2) in the above 2-2 region (2-2A).

[0150] The second electrode (220) may include a second-1 electrode portion (221) and a second-2 electrode portion (222). The second-1 electrode portion (221) may be disposed on at least one of the second-1 region (2-1A) and the second-2 region (2-2A). Specifically, the second-1 electrode portion (221) may be disposed on the second-1 region (2-1A) and the second-2 region (2-2A).

[0151] The second-second electrode portion (222) may be disposed on at least one of the second-first region (2-1A) and the second-second region (2-2A). Specifically, the second-second electrode portion (222) may be disposed on the second-second region (2-2A). The second-second electrode portion (222) may be disposed on the entire region or a portion of the second-second region (2-2A).

[0152] The second electrode portion (222) may be disposed at the edge of the second substrate (120). Specifically, the second electrode portion (222) may be disposed extending along the edge of the second substrate (120).

[0153] Accordingly, the second-1 electrode portion (221) may be positioned in contact with the second substrate (120), and the second-2 electrode portion (222) may not be in contact with the second substrate (120). That is, the second-1 electrode portion (221) may be positioned on the second substrate (120), and the second-2 electrode portion (222) may be positioned on the second-1 electrode portion (221).

[0154] The above-mentioned second-second electrode portion (221) and the above-mentioned second-second electrode portion (222) may be arranged with different areas.

[0155] Specifically, the area of ​​the second-1 electrode portion (221) may be larger than the area of ​​the second-2 electrode portion (222). That is, the area of ​​the second-1 electrode portion (221) disposed on the second-1 region (2-1A) and the second-2 region (2-2A) of the second substrate (120) may be larger than the area of ​​the second-2 electrode portion (222) disposed on the second-2 region (2-2A).

[0157] In addition, the 2-1 electrode portion (221) and the 2-2 electrode portion (222) may have different thicknesses.

[0158] Specifically, the thickness (T2-1) of the 2-1 electrode portion (221) may be smaller than the thickness (T2-2) of the 2-2 electrode portion (222).

[0159] For example, the thickness (T2-1) of the second-1 electrode portion (221) may be 0.1 μm to 0.5 μm. Making the thickness (T2-1) of the second-1 electrode portion (221) less than 0.1 μm is difficult to implement in terms of process, and the sheet resistance of the second-1 electrode portion (221) may increase. In addition, if the thickness (T2-1) of the second-1 electrode portion (221) exceeds 0.5 μm, the overall thickness of the optical path control member may increase.

[0160] Additionally, the thickness (T2-2) of the second electrode portion (222) may be 0.1 μm to 5 μm. It may be difficult to implement the thickness (T2-2) of the second electrode portion (222) to be less than 0.1 μm in terms of process. Also, if the thickness (T2-2) of the second electrode portion (222) exceeds 5 μm, the overall thickness of the optical path control member may increase.

[0161] The thickness (T2-1) of the 2-1 electrode portion (221) may be smaller than the thickness (T2-2) of the 2-2 electrode portion (222) within the above range.

[0163] Additionally, the 2-1 electrode part (221) and the 2-2 electrode part (222) may include different materials.

[0164] The above 2-1 electrode portion (221) may include a transparent material. That is, the above 2-1 electrode portion (221) may include a transparent electrode. For example, the above 2-1 electrode portion (221) may include a metal oxide such as indium tin oxide, indium zinc oxide, copper oxide, tin oxide, zinc oxide, titanium oxide, etc.

[0165] Since the above 2-1 electrode portion (221) includes a transparent material, the brightness of the light path control member can be maintained even when the above 2-1 electrode portion (221) is placed on the 2-1 region (2-1A) of the 2 substrate (120).

[0166] The second electrode portion (222) may include an opaque or translucent material. The second electrode portion (222) may include a metallic material. For example, the second electrode portion (222) may include at least one metal selected from chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), molybdenum (Mo), gold (Au), titanium (Ti), and alloys thereof.

[0167] Since the second-2 electrode portion (212) is placed on the second-2 region (2-2A) of the second substrate (120), even if the second-2 electrode portion (222) includes an opaque metallic material, it does not affect the transmittance of light passing through the light path control member.

[0169] In addition, the 2-1 electrode part (221) and the 2-2 electrode part (222) may have different resistance values.

[0170] The resistance size of the 2-1 electrode portion (221) may be greater than the resistance size of the 2-2 electrode portion (222). Specifically, the sheet resistance of the 2-1 electrode portion (221) may be greater than the sheet resistance of the 2-2 electrode portion (222).

[0171] For example, the sheet resistance of the 2-1 electrode part (221) may be 50 Ω / □ to 2000 Ω / □. Also, the sheet resistance of the 2-2 electrode part (222) may be 0.1 Ω / □ to 50 Ω / □.

[0172] Accordingly, only a high-resistance electrode is disposed in the 2-1 region (2-1A), which is an effective region of the 2nd substrate (120), and a high-resistance electrode and a low-resistance metal can be disposed together in the 2-2 region (2-2A), which is an ineffective region.

[0173] Accordingly, resistance non-uniformity in the entire area of ​​the second substrate (120) can be reduced. That is, when only the second-1 electrode portion (221) with high resistance is placed on the second substrate (120), the resistance may increase as it extends from the central part of the second substrate (120) to the peripheral area at the edge. Accordingly, by additionally placing the second-2 electrode portion (222) with low resistance in the second-2 area (2-2A), which is the peripheral area of ​​the second substrate (120), resistance non-uniformity in the second substrate (120) can be reduced.

[0174] Accordingly, since the variation in optical conversion characteristics in each region of the optical path control member due to electric field non-uniformity caused by the resistance difference can be minimized, the driving characteristics of the optical path control member can be improved.

[0176] In addition, the 2-1 electrode part (221) and the 2-2 electrode part (222) may have different transparencys.

[0177] The transparency of the 2-1 electrode portion (221) may be greater than the transparency of the 2-2 electrode portion (222). Specifically, the 2-1 electrode portion (221) may be more transparent than the 2-2 electrode portion (222).

[0178] Since the above 2-1 electrode portion (221) has high transparency, even if the above 2-1 electrode portion (221) is placed on the @-1 region (2-1A) of the above 2 substrate (120), light passing through the light path control member can pass through the above 2-1 electrode portion (221).

[0179] Additionally, the second electrode portion (222) includes an opaque metal material, but is placed on the second region (2-2A) through which light is not transmitted, so it does not affect the transmittance of light passing through the light path control member.

[0181] In addition, the 2-1 electrode part (221) and the 2-2 electrode part (222) may have different conductivity.

[0182] The conductivity of the above 2-2 electrode part (222) may be greater than the conductivity of the above 2-1 electrode part (221).

[0183] Since the conductivity of the 2-2 electrode part (222) is relatively greater than the conductivity of the 2-1 electrode part (221), the electrical connection characteristics between the optical path control member and the external printed circuit board can be improved.

[0184] That is, the second-2 electrode portion (222) is positioned in the second connection area (CA2) in the second-2 region (2-2A), and accordingly, the second connection area (CA2) may contain a highly conductive material. Accordingly, when connecting the optical path control member and the external printed circuit board through the second connection area (CA2), electrical connection characteristics can be improved.

[0186] The first electrode and the second electrode of the optical path control member according to the embodiment may include electrode portions having different areas, materials, thicknesses, resistances, transparencys, and conductivity. Accordingly, the driving characteristics of the optical path control member can be improved while maintaining the brightness of the optical path control member.

[0187] That is, in the light path control member according to the embodiment, light can be transmitted through the light path control member by the first electrode portion of the first electrode and the second electrode, thereby changing the viewing angle.

[0188] In addition, the optical path control member according to the embodiment can reduce the overall resistance non-uniformity of the optical path control member by the second electrode portion of the first electrode and the second electrode.

[0189] Accordingly, since electric field non-uniformity can be reduced in the region of the optical path control member, the optical path control member can have improved optical conversion characteristics. Therefore, the optical path control member according to the embodiment can have improved driving characteristics.

[0191] Hereinafter, an optical path control member according to another embodiment will be described with reference to FIGS. 8 and FIG. 9. FIG. 8 is a cross-sectional view showing the BB' region of FIG. 4 cut away, and FIG. 9 is a cross-sectional view showing the CC' region of FIG. 6 cut away.

[0192] Referring to FIGS. 8 and 9, the first-1 electrode portion (211) and the first-2 electrode portion (212) may be arranged in contact with the first substrate (110). That is, the first-2 electrode portion (212) may not be arranged on the first-1 electrode (211), but may be arranged on the first substrate (110) in contact with the first substrate (110).

[0193] Additionally, the 2-1 electrode portion (221) and the 2-2 electrode portion (222) may be arranged in contact with the 2 substrate (120). That is, the 2-2 electrode portion (212) may not be arranged on the 2-1 electrode (221), but may be arranged on the 2 substrate (120) in contact with the 2 substrate (120).

[0194] Accordingly, the optical path control member can reduce the size of the step difference between the first-1 electrode part (211) and the first-2 electrode part (212) and the step difference between the second-1 electrode part (221) and the second-2 electrode part (222).

[0195] Accordingly, the optical path control member can prevent adhesion defects caused by the step size. In addition, by increasing the thickness of the 1-2 electrode portion (212) and the 2-2 electrode portion (222) by the amount that the step size is reduced, the resistance of the 1-2 electrode portion (212) and the 2-2 electrode portion (222) can be reduced, thereby reducing the size of resistance non-uniformity of the optical path control member.

[0197] Hereinafter, with reference to FIGS. 10 to 14, a display device and a display device to which an optical path control member according to an embodiment is applied will be described.

[0198] Referring to FIGS. 10 and 11, the light path control member (1000) according to the embodiment may be placed on or below a display panel (2000).

[0199] The display panel (2000) and the light path control member (1000) may be arranged by adhering 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 comprising an optically transparent adhesive material.

[0200] The adhesive member (1500) may include a release film. Specifically, when bonding the light path member and the display panel, the light path control member and the display panel can be bonded after removing the release film.

[0201] The above display panel (2000) may include a first' substrate (2100) and a second' substrate (2200). If the above display panel (2000) is a liquid crystal display panel, the light path control member may be formed on the lower part of the liquid crystal panel. That is, when the surface viewed by the user from the liquid crystal panel is defined as the upper part of the liquid crystal panel, the light path control member may be placed on the lower part of the liquid crystal panel. The above display panel (2000) may be formed in a structure in which 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 together with a liquid crystal layer in between.

[0202] Additionally, the display panel (2000) may be a liquid crystal display panel with a COT (color filter on transistor) structure in which a thin film transistor, a color filter, and a black electrolyte are formed on a first' substrate (2100), and a second' substrate (2200) is bonded to the first' substrate (2100) with a liquid crystal layer in between. 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 in contact with 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 a common electrode may be formed to serve the role of the black electrolyte.

[0203] In addition, if the display panel (2000) is a liquid crystal display panel, the display device may further include a backlight unit (3000) that provides light from the back of the display panel (2000).

[0204] That is, as shown in FIG. 10, the light path control member is positioned at the bottom of the liquid crystal panel and at the top of the backlight unit (3000), so that the light path control member can be positioned between the backlight unit (3000) and the display panel (2000).

[0205] Alternatively, as shown in FIG. 11, if the display panel (2000) is an organic light-emitting diode panel, the light path control member may be formed on the upper surface of the organic light-emitting diode panel. That is, when the surface viewed by the user from the organic light-emitting diode panel is defined as the upper surface of the organic light-emitting diode panel, the light path control member may be placed on the upper surface of the organic light-emitting diode panel. The display panel (2000) may include a self-luminous element that does not require a separate light source. The display panel (2000) may have a thin-film transistor formed on a first' substrate (2100), and an organic light-emitting element in contact with the thin-film transistor may be formed. The organic light-emitting element may include an anode, a cathode, and an organic light-emitting layer formed between the anode and the cathode. Additionally, the display panel may further include a second' substrate (2200) that serves as a sealing substrate for encapsulation on the organic light-emitting element.

[0206] Additionally, although not shown in the drawing, 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 anti-external light reflection polarizer. For example, if the display panel (2000) is a liquid crystal display panel, the polarizer may be a linear polarizer. Additionally, if the display panel (2000) is an organic light-emitting diode panel, the polarizer may be an anti-external light reflection polarizer.

[0207] Additionally, an additional functional layer (1300), such as an anti-reflective layer or an anti-glare layer, may be further disposed on the light path control member (1000). Specifically, the functional layer (1300) may be bonded to one side of the first substrate (110) of the light path control member. Although not shown in the drawing, the functional layer (1300) may be bonded to the first substrate (110) of the light path control member through an adhesive layer. Additionally, a release film that protects the functional layer may be further disposed on the functional layer (1300).

[0209] In addition, a touch panel may be further disposed between the display panel and the light path control member.

[0210] Although the drawing illustrates the light path control member being positioned on the upper part of the display panel, the embodiment is not limited thereto, and the light control member may be positioned at various locations where light control is possible, such as the lower part of the display panel or between the second substrate and the first substrate of the display panel.

[0211] In addition, although the light conversion part of the light path control member according to the embodiment is shown in the drawing in a direction parallel or perpendicular to the outer surface of the second substrate, the light conversion part may be formed at a certain angle inclined with respect to the outer surface of the second substrate. This can reduce the moiré phenomenon occurring between the display panel and the light path control member.

[0213] Referring to FIGS. 12 to 14, the optical path control member according to the embodiment can be applied to a display device that displays a display.

[0214] For example, when power is applied to the light path control member as in FIG. 12, the receiving part functions as a light-transmitting part, so that the display device can be operated in an open mode, and when power is not applied to the light path control member as in FIG. 13, the receiving part functions as a light-blocking part, so that the display device can be operated in a light-blocking mode.

[0215] Accordingly, the user can easily operate the display device in privacy mode or normal mode depending on the application of power.

[0216] Light emitted from the backlight unit or self-luminous element may move from the first substrate toward the second substrate. Alternatively, light emitted from the backlight unit or self-luminous element may also move from the second substrate toward the first substrate.

[0218] In addition, referring to FIG. 14, a display device to which the optical path control member according to the embodiment is applied can also be applied to the interior of a vehicle.

[0219] For example, a display device including a light path control member according to an embodiment can display information about the vehicle and an image confirming the vehicle's movement path. The display device may be positioned between the driver's seat and the passenger seat of the vehicle.

[0220] In addition, the optical path control member according to the embodiment can be applied to an instrument panel that displays the vehicle's speed, engine, and warning signals, etc.

[0221] In addition, the light path control member according to the embodiment can be applied to the front windshield (FG) or the left and right window glass of the vehicle.

[0223] The features, structures, effects, etc. described in the above-described 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. exemplified in each embodiment may be combined or modified and implemented in other embodiments by a person skilled in the art to which the embodiments belong. Therefore, details regarding such combinations and modifications should be interpreted as being included within the scope of the present invention.

[0224] Furthermore, although the invention has been described above with reference to embodiments, this is merely illustrative and does not limit the invention. Those skilled in the art will understand that various modifications and applications not exemplified above are possible within the scope of the essential characteristics of the embodiments. For example, each component specifically shown in the embodiments may be modified and implemented. Differences related to such modifications and applications should be interpreted as being included within the scope of the invention as defined in the appended claims.

Claims

Claim 1 A first substrate; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate; and includes a light conversion unit comprising a plurality of receiving portions disposed between the first electrode and the second electrode, wherein a light conversion material is disposed therein, the first substrate includes a 1-1 region overlapping with the receiving portion and a 1-2 region disposed at the edge of the first substrate, the second substrate includes a 2-1 region overlapping with the receiving portion and a 2-2 region disposed at the edge of the second substrate, the first electrode includes a 1-1 electrode portion disposed on the 1-1 region and the 1-2 region and a 1-2 electrode portion disposed on the 1-2 region, the second electrode includes a 2-1 electrode portion disposed on the 2-1 region and the 2-2 region and a 2-2 electrode portion disposed on the 2-2 region, the area of ​​the 1-1 electrode portion is larger than the area of ​​the 1-2 electrode portion, and the area of ​​the 2-1 electrode portion is the area of ​​the 2-2 electrode portion An optical path control member having an area larger than the resistance of the first electrode part, the resistance of the first electrode part is greater than the resistance of the second electrode part, and the resistance of the second electrode part is greater than the resistance of the second electrode part. Claim 2 A light path control member according to claim 1, wherein the first-2 electrode portion is disposed on the first-1 electrode portion and the second-2 electrode portion is disposed on the second-1 electrode portion. Claim 3 A light path control member according to claim 1, wherein the thickness of the 1-1 electrode portion is smaller than the thickness of the 1-2 electrode portion, and the thickness of the 2-1 electrode portion is smaller than the thickness of the 2-2 electrode portion. Claim 4 A light path control member according to claim 3, wherein the thickness of at least one electrode portion among the 1-1 electrode portion and the 2-1 electrode portion is 0.1 μm to 0.5 μm, and the thickness of at least one electrode portion among the 1-2 electrode portion and the 2-2 electrode portion is 0.1 μm to 5 μm. Claim 5 delete Claim 6 A light path control member according to claim 1, wherein the transparency of the 1-1 electrode portion is greater than the transparency of the 1-2 electrode portion, and the transparency of the 2-1 electrode portion is greater than the transparency of the 2-2 electrode portion. Claim 7 A light path control member according to claim 1, wherein the conductivity of the first-2 electrode portion is greater than the conductivity of the first-1 electrode portion, and the conductivity of the second-2 electrode portion is greater than the conductivity of the second-1 electrode portion. Claim 8 A light path control member according to claim 1, wherein at least one electrode portion among the 1-1 electrode portion and the 2-1 electrode portion comprises indium tin oxide, indium zinc oxide, copper oxide, tin oxide, zinc oxide, or titanium oxide, and at least one electrode portion among the 1-2 electrode portion and the 2-2 electrode portion comprises at least one metal selected from chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), molybdenum (Mo), gold (Au), titanium (Ti), and alloys thereof. Claim 9 An optical path control member according to claim 1, wherein the 1-1 electrode portion and the 1-2 electrode portion are disposed in contact with the 1 substrate, and the 2-1 electrode portion and the 2-2 electrode portion are disposed in contact with the 2 substrate. Claim 10 An optical path control member according to claim 1, wherein a first connection area is disposed in the first-2 region and a second connection area is disposed in the second-2 region. Claim 11 A display device comprising: a panel including at least one panel among a display panel and a touch panel; and a light path control member of any one of claims 1 to 4 and 6 to 10 disposed on or under said panel. Claim 12 In claim 11, the panel comprises 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, and the light emitted from the backlight unit moves from the first substrate toward the second substrate. Claim 13 In claim 11, the panel comprises an organic light-emitting diode panel, the light path control member is disposed on the organic light-emitting diode panel, and the light emitted from the panel moves from the first substrate toward the second substrate, forming a display device.

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