Optical path control member and display device including the same

Abstract

The light path control member according to the embodiment includes: a first electrode disposed above a first substrate; a second substrate disposed above the first substrate; a second electrode disposed below the second substrate; and a light conversion portion disposed between the first electrode and the second electrode, wherein: the light conversion portion includes a plurality of partition wall portions, a plurality of accommodation portions, and a base portion; a light conversion material is disposed in the accommodation portions, the light conversion portion includes a first sealing portion that seals the light conversion material; the first sealing portion extends in a direction from one end thereof to the other end thereof; and the other end of the first sealing portion is arranged to extend into an inner region of the accommodation portion.

Description

Technical Field

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

[0002] The light-blocking film blocks the transmission of light from the light source and is attached to the front surface of the display panel, which is used in mobile phones, laptops, tablets, vehicle navigation devices, vehicle touch displays, etc. The light-blocking film adjusts the angle of light according to the incident angle of the light so that the display can present a clear image quality at the user's desired viewing angle when the light is transmitted through the screen.

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

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

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

[0006] This switchable light-blocking film can be achieved by filling the interior of the containment with a light-converting material comprising particles that can move when a voltage is applied and a dispersion liquid for dispersing the particles, and by dispersing and aggregating the particles, by converting the containment into a light-transmitting part and a light-blocking part.

[0007] By using a capillary method with one end of the receiving portion as the injection portion and the other end as the outlet portion, the light conversion material can be injected from the injection portion to the outlet portion. Next, the injection portion and the outlet portion can be sealed with a sealing portion, so that the light conversion material can be sealed within the receiving portion.

[0008] Therefore, when the seal is removed, the reliability and driving characteristics of the optical path control components may be reduced due to leakage of the light conversion material.

[0009] Therefore, there is a need for optical path control components with new structures that can solve the above problems. Summary of the Invention

[0010] Technical issues

[0011] The embodiments relate to an optical path control component with improved reliability and driving characteristics.

[0012] Technical solution

[0013] The optical path control component of the embodiment includes: a first substrate; a first electrode disposed above the first substrate; a second substrate disposed above the first substrate; a second electrode disposed below the second substrate; and a light conversion section disposed between the first electrode and the second electrode. The light conversion section includes a plurality of partition walls, a plurality of receiving sections, and a base. A light conversion material is disposed in the receiving section. The optical path control component includes a first sealing section that seals the light conversion material. The first sealing section extends from one end to the other end, and the other end of the first sealing section extends into the inner region of the receiving section.

[0014] Beneficial effects

[0015] The optical path control component according to the embodiment can improve the adhesion of the sealing part.

[0016] Specifically, since the sealing part used to seal the light conversion material inside the receiving part is bent toward the inside of the receiving part, the contact area of ​​the sealing part can be increased.

[0017] Therefore, by increasing the bonding area of ​​the sealing part, the adhesion of the sealing part can be improved.

[0018] Furthermore, because the sealing part bends inward toward the receiving part to increase the area of ​​the sealing part, it can effectively prevent the leakage of light conversion material or the penetration of external impurities into the receiving part.

[0019] Therefore, the optical path control component according to the embodiment can have improved reliability and driving characteristics. Attached Figure Description

[0020] Figure 1 This is a perspective view of an optical path control component according to one embodiment.

[0021] Figure 2 It is along Figure 1 A cross-sectional view of region AA′.

[0022] Figures 3 to 10 This is a view used to illustrate the process of setting a light conversion material and a sealing part in the light path control component according to the embodiment.

[0023] Figure 11 yes Figure 1 A magnified plan view of region B.

[0024] Figure 12 yes Figure 11 A magnified view of region C.

[0025] Figures 13 to 15 This is a cross-sectional view of the optical path control component according to other embodiments.

[0026] Figures 16 to 21 It is along Figure 16A cross-sectional view of region DD′.

[0027] Figure 22 and Figure 23 It is along Figure 1 A cross-sectional view of region EE′.

[0028] Figure 24 and Figure 25 This is a cross-sectional view of a display device that applies a light path control component according to an embodiment.

[0029] Figures 26 to 28 This is a view illustrating an embodiment of a display device that applies a light path control component according to an embodiment. Detailed Implementation

[0030] In the following, embodiments of the invention will be described in detail with reference to the accompanying drawings. However, the spirit and scope of the invention are not limited to the partial embodiments described, but can be implemented in various other forms, and one or more elements of the embodiments may be selectively combined and substituted within the spirit and scope of the invention.

[0031] Furthermore, unless otherwise explicitly defined and described, the terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as having the same meaning as commonly understood by one of ordinary skill in the art to which the present invention pertains, and terms (e.g., terms defined in common dictionaries) may be interpreted as having the same meaning as in the context of the prior art.

[0032] Furthermore, the terminology used in the embodiments of the present invention is for describing the embodiments and not for limiting the invention. In this specification, unless specifically stated in the phrase, the singular form may also include the plural form, and when described as “at least one (or more) of A, B, and C”, it may include at least one of all combinations that can be combined with A, B, and C.

[0033] Furthermore, when describing the elements of embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are used only to distinguish elements from other elements, and the terms are not limited to the nature, order, or sequence of the elements.

[0034] Furthermore, when an element is described as being “connected” or “combined” to another element, it can include not only cases where the element is directly “connected” or “combined” to another element, but also cases where the element is “connected” or “combined” through another element between itself and other elements.

[0035] Furthermore, when described as being formed or positioned “above” or “below” in each element, “above” or “below” can include not only cases where two elements are directly connected to each other, but also cases where one or more other elements are formed or positioned between the two elements.

[0036] Furthermore, when expressed as "above" or "below", it can include not only the upward direction based on an element but also the downward direction.

[0037] In the following description, the optical path control component according to an embodiment will be described with reference to the accompanying drawings.

[0038] Figure 1 This is a perspective view of the optical path control component according to an embodiment.

[0039] Reference Figure 1 According to the embodiment, the optical path control component 1000 may include a first substrate 110, a second substrate 120, a first electrode 210, a second electrode 220, a light conversion part 300, a first sealing part 510, and a second sealing part 520.

[0040] 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.

[0041] The adhesive layer 410 may be disposed between the light conversion unit 300 and the first electrode 210. For example, a transparent adhesive layer capable of transmitting light may be disposed between the light conversion unit 300 and the first electrode 210. For example, the adhesive layer 410 may include an optically transparent adhesive (OCA).

[0042] Furthermore, a buffer layer 420 can be disposed between the light conversion section 300 and the second electrode 220. Therefore, the adhesion between the light conversion section 300 and the second electrode 220, which are made of different materials, can be improved.

[0043] The light conversion unit 300 and the second electrode 220 can be combined through the buffer layer 420.

[0044] Figure 2 It is along Figure 1 A cross-sectional view of region AA′.

[0045] Reference Figure 1 and Figure 2 The light conversion unit 300 may include a plurality of partition wall portions 310, a plurality of receiving portions 320 and a base portion 350.

[0046] The partition wall portion 310 and the receiving portion 320 may each include multiple portions, and the partition wall portion 310 and the receiving portion 320 may be arranged alternately. That is, one receiving portion 320 may be arranged between two adjacent partition wall portions, and one partition wall portion 310 may be arranged between two adjacent receiving portions 320.

[0047] Despite Figure 1 Five receiving sections are shown for illustrative purposes; however, there may be dozens or more receiving sections.

[0048] The base 350 can be disposed on the receiving portion 320. Specifically, the base 350 can be disposed between the receiving portion 320 and the buffer layer 420. Therefore, the light conversion portion 300 can be adhered to the second electrode 220 by means of the base 350 and the buffer layer 420.

[0049] The base 350 is the area formed during the imprinting process for forming the partition wall portion 310 and the receiving portion 320, and may include the same material as the partition wall portion 310.

[0050] The partition wall 310 can transmit light. Furthermore, the light transmittance of the receiving portion 320 can be changed by applying a voltage.

[0051] Specifically, the receiving portion 320 can be configured to extend in one direction. A light conversion material 330 can be disposed within the receiving portion 320. The light transmittance of the receiving portion 320 can be altered by the light conversion material 330. The light conversion material 330 may include light conversion particles 330b that move upon application of voltage and a dispersion 330a that disperses the light conversion particles 330b. Furthermore, the light conversion material 330 may also include a dispersant to prevent the aggregation of the light conversion particles 330b.

[0052] The light conversion material 330 is disposed in the receiving portion 320, and the first sealing portion 510 is disposed at one end and the other end of the receiving portion 320 respectively, so that the light conversion material 330 can be disposed in the receiving portion 320.

[0053] Meanwhile, the first sealing portion 510 may include a curved region. Specifically, when the first sealing portion 510 extends from one end to the other, the first sealing portion 510 may be configured to extend toward the interior of the receiving portion 320 through the curved region. That is, the first sealing portion 510 may directly contact the receiving portion 320. In other words, the first sealing portion 510 may directly contact the side surface of the partition wall portion 310 or directly contact the receiving portion 320.

[0054] Therefore, the contact area of ​​the first sealing portion 510 can be increased. That is, since the first sealing portion 510 extends from one end to the other end and the other end extends into the inner region of the receiving portion 320, the first sealing portion 510 can also contact the inner surface of the receiving portion 320.

[0055] Therefore, by increasing the contact area of ​​the first sealing portion 510, the adhesion of the first sealing portion 510 can be improved. Furthermore, by increasing the area of ​​the first sealing portion 510 disposed within the receiving portion 320, leakage of the light conversion material 330 can be effectively prevented.

[0056] Meanwhile, the light conversion material 330 and the first sealing part 510 can be disposed in the receiving part 320 by a capillary method.

[0057] Figures 3 to 10 This is a view used to illustrate the process of injecting and sealing the light conversion material 330 into the receiving portion 320.

[0058] First, refer to Figure 3 and Figure 4 Multiple regions can be formed in the second substrate 120, the second electrode 220, the buffer layer 420, and the light conversion unit 300.

[0059] Figure 3 This is a cross-sectional view of the receiving portion 320 taken along the longitudinal direction. Figure 4 It is a cross-sectional view of the partition wall 310 taken along the longitudinal direction.

[0060] Specifically, a sealing region SA and a dam region DA can be formed through the second substrate 120, the second electrode 220, the buffer layer 420 and the light conversion section 300.

[0061] Furthermore, the embodiments are not limited to this, and may only form the sealing area SA without the dam area DA.

[0062] The sealing area SA can be an area in which light conversion material and sealing material are injected, and the dam area DA can be an area in which dam material is injected.

[0063] The sealing region SA may include a first sealing region SA1 and a second sealing region SA2 facing each other. Specifically, the sealing region SA may include a first sealing region SA1 and a second sealing region SA2 facing each other in the length direction of the receiving portion 320.

[0064] The first sealing region SA1 and the second sealing region SA2 can be formed by penetrating the second substrate 120, the second electrode 220, the buffer layer 420 and the base 350, and removing all or part of the partition wall portion 310 of the light conversion portion 300.

[0065] Therefore, the ends of the first sealing region SA1 and the second sealing region SA2 can be connected to the two ends of the receiving portion 320, respectively.

[0066] Therefore, the light conversion material can be injected into the receiving portion 320 through the first sealing region SA1 and the second sealing region SA2, and the light conversion material in the receiving portion 320 can be sealed by the subsequently injected sealing material.

[0067] although Figure 4 The base 350 and the partition wall portion 310 are shown to be formed by penetration, but the embodiment is not limited to this. The first sealing region SA1 and the second sealing region SA2 can be formed by partially removing the partition wall portion 310.

[0068] A channel for injecting the light conversion material 330 can be formed in the receiving portion 320 through the first sealing region SA1 and the second sealing region SA2.

[0069] Specifically, an injection section IA, in which the light conversion material 330 is injected, can be formed in the receiving section 320 through the second sealing region SA2, and an outlet section EA, in which the light conversion material 330 is discharged, can be formed in the receiving section 320 through the first sealing region SA1. Therefore, the injection section IA can be formed at one end of the receiving section 320, and the outlet section EA can be formed at the other end of the receiving section 320.

[0070] The dam area DA can be located outside the sealing area SA and spaced apart from the sealing area SA.

[0071] The dam section region DA may include a first dam section region DA1 and a second dam section region DA2 that face each other. Specifically, the dam section region DA may include a first dam section region DA1 and a second dam section region DA2 that face each other in the longitudinal direction of the receiving section 320.

[0072] The first dam area DA1 can be set outside the first sealing area SA1, and the second dam area DA2 can be set outside the second sealing area SA2.

[0073] The first dam region DA1 and the second dam region DA2 can be formed by penetrating the second substrate 120, the second electrode 220, the buffer layer 420 and the base 350 and completely or partially removing the partition wall portion 310 of the light conversion section 300.

[0074] although Figure 4 The base 350 and the partition wall 310 are shown to be formed by penetration, but the embodiments are not limited thereto, and the first dam region DA1 and the second dam region DA1 can be formed by partially removing the partition wall 310.

[0075] Additionally, as mentioned above, the dam area DA can be omitted. That is, only the sealed area SA can be formed.

[0076] For ease of explanation, the following embodiments are described based on the case of the dammed area DA, but the embodiments are not limited thereto.

[0077] Next, refer to Figure 5 Dam section 600 can be set in dam section area DA. Specifically, dam section 600 can be set in the first dam section area DA1 and the second dam section area DA2.

[0078] The dam section 600 can be configured to fill the interior of the dam section area DA. The dam section 600 can be used to prevent the light conversion material 330 from overflowing to the outside when it is injected through the injection section IA and the outlet section EA.

[0079] The dam section 600 may include a curved region. Specifically, the dam section 600 may be located within the dam section region DA and within the receiving section 320. That is, the dam section 600 may be curved within the dam section region DA and extend toward the receiving section 320.

[0080] Specifically, the dam section 600 can be configured to extend along one longitudinal direction of the receiving section 320 and along another longitudinal direction of the receiving section 320 while filling the dam section region DA. Specifically, the dam section 600 can be configured to extend to the point where the sealing region SA begins.

[0081] The dam section 600 may include a resin material. For example, the dam section 600 may include polyurethane acrylate. That is, the dam section 600 can be formed by placing the resin material within the dam section region DA and the receiving section 320 and then curing the resin material.

[0082] Next, refer to Figure 6 The light conversion material 330 can be disposed within the receiving portion 320 via the injection portion IA and the exit portion EA. Specifically, the light conversion material 330 can be coated onto the injection portion IA, and the light conversion material 330 can move toward the exit portion EA and be disposed within the receiving portion 320 via capillary effect.

[0083] Therefore, the light conversion material 330 can fill the interior of the accommodating portion 320 between the dam portion 600 and the sealing area.

[0084] Next, refer to Figure 7This process can remove a portion of the light conversion material 330 within the sealing region SA and a portion of the light conversion material 330 within the receiving portion 320. Specifically, after sealing the second sealing region SA2 on the outlet portion EA side to prevent the light conversion material 330 within the receiving portion 320 from moving, the first sealing region SA1 on the injection portion IA side is cleaned, and after sealing the first sealing region SA1 on the injection portion IA side, the second sealing region SA2 on the outlet portion EA side is cleaned, thereby removing the light conversion material 330 disposed within the sealing region SA.

[0085] Therefore, a space S containing sealing material can be formed by removing the light conversion material disposed in the sealing area SA and the light conversion material disposed in a portion of the receiving part 320.

[0086] Alternatively, after sealing the second sealing region SA2 on the EA side of the outlet section to prevent the light conversion material 330 in the receiving section 320 from moving, clean the first sealing region SA1 on the IA side of the injection section, and after sealing the first sealing region SA1 on the IA side of the injection section by providing sealing material in the first sealing region SA1 on the IA side of the injection section, clean the second sealing region SA2 on the EA side of the outlet section, thereby removing the light conversion material 330 provided in the sealing region SA.

[0087] Next, refer to Figure 8 Sealing material can be filled into the sealing area SA. Sealing material can also be disposed within the receiving portion 320. That is, the sealing material can extend into the receiving portion 320 along its longitudinal direction while filling the sealing area SA.

[0088] Specifically, after the sealing material is applied to the first sealing region SA1 on the injection section IA side, the sealing material can extend into the receiving section 320 via the second sealing region SA2 on the outlet section EA side through a capillary effect. Similarly, after the sealing material is applied to the second sealing region SA2 on the outlet section EA side, the sealing material can extend into the receiving section 320 via the first sealing region SA1 on the injection section IA side through a capillary effect.

[0089] In other words, the sealing material can be configured to extend in the longitudinal direction of the receiving portion 320 to contact the light conversion material disposed within the receiving portion 320.

[0090] Next, by curing the sealing material, a first sealing portion 510 can be provided on the light conversion unit 300. The first sealing portion 510 is configured to extend from the sealing region SA to the receiving portion 320. That is, the first sealing portion 510 extending from one end to the other can be configured to extend from the sealing region SA toward the interior of the receiving portion 320, thereby the first sealing portion 510 may include a curved region SCA. For example, the first sealing portion 510 can be configured as an "L" shape. That is, based on a receiving portion 320, the first sealing portion 510 can be configured as an "L" shape through the curved region SCA.

[0091] At this time, the curing of the sealing material in the first sealing area SA1 and the second sealing area SA2 can be carried out simultaneously or sequentially.

[0092] For example, when sealing material is applied to the first sealing area SA1 and the second sealing area SA2 after cleaning, the sealing material in the first sealing area SA1 and the second sealing area SA2 can cure simultaneously or sequentially.

[0093] Alternatively, if the sealing material is applied to the first sealing area SA1 after cleaning, and then applied to the second sealing area SA2 after cleaning, the sealing material can be cured first on the first sealing area SA1 and then on the second sealing area SA2.

[0094] Next, refer to Figure 9 and Figure 10 Unnecessary border areas can be removed by cutting the dam section 600 and the sealing section 500 through a cutting process.

[0095] Figure 9 and Figure 10 The illustration shows a dam section area being cut on the outlet side and a first sealing section 510 being cut on the injection side, but the embodiment is not limited to this and the cutting area can be defined at multiple locations.

[0096] have Figure 1 and Figure 2 The optical path control component shown in this process can be formed.

[0097] Reference Figure 2 The first sealing part 510 may include a 1-1 sealing part 511 and a 1-2 sealing part 512.

[0098] Sealing part 511 (1-1) and sealing part 512 (1-2) can contact the light conversion material and face each other. Sealing part 511 (1-1) can be defined as a sealing part provided in the outlet region of the receiving part 320, and sealing part 512 (1-2) can be defined as a sealing part provided in the injection region of the receiving part 320.

[0099] The 1-1 sealing portion 511 extending from one end to the other can be configured to extend from the first sealing portion 511 toward the interior of the receiving portion 320. Therefore, the other end of the 1-1 sealing portion 511 can be disposed within the receiving portion 320.

[0100] In other words, the 1-1 sealing portion 511 may include a curved region SCA between one end and the other end of the 1-1 sealing portion 511.

[0101] That is, the 1-1 sealing portion 511 may include a curved portion SCA that extends from the first sealing region SA1 and is bent along the longitudinal direction of the receiving portion 320.

[0102] Therefore, the sealing part 511 can be configured to contact the inner surface of the first sealing region S1, the upper or lower surface of the buffer layer 420, the inner surface of the receiving part 320, and the side surface of the partition wall part 310.

[0103] Furthermore, the 1-2 sealing portions 512 extending from one end to the other can be configured to extend from the second sealing region SA2 toward the interior of the receiving portion 320. Therefore, the other end 512 of the 1-2 sealing portions can be disposed within the receiving portion 320.

[0104] In other words, the 1-2 sealing portion 512 may include a curved region SCA between one end and the other end of the 1-2 sealing portion 512.

[0105] That is, the 1-2 sealing portion 512 may include a curved region SCA that extends from the second sealing region SA2 and is bent along the longitudinal direction of the receiving portion 320. Therefore, the 1-2 sealing portion 512 may be configured to contact the inner surface of the second sealing region SA2, the upper or lower surface of the buffer layer 420, the inner surface of the receiving portion 320, and the side surface of the partition wall portion 310.

[0106] Therefore, sealing portion 511 (1-1) and sealing portion 512 (1-2) may include a sealing portion disposed in the sealing region, a sealing portion disposed in the bending region, and a sealing portion disposed within the receiving portion. Furthermore, the sealing portion disposed in the sealing region, the sealing portion disposed in the bending region, and the sealing portion disposed within the receiving portion may be integrally formed.

[0107] Sealing part 511 (1-1) and sealing part 512 (1-2) can extend into the interior of the receiving part 320 through the curved area. In this case, sealing part 511 (1-1) and sealing part 512 (1-2) within the receiving part 320 can be defined as overlapping and non-overlapping areas relative to the sealing area SA.

[0108] Therefore, the length L of the sealing part 511 and the sealing part 512 in the direction of the receiving part 320 can have a first length L1 corresponding to the overlapping region OA and a second length L2 corresponding to the non-overlapping region NOA.

[0109] In other words, the 1-1 sealing part 511 and the 1-2 sealing part 512 may include a first length L1 disposed in the sealing area and a second length L2 disposed in the receiving part. Therefore, the total length of the 1-1 sealing part 511 and the total length of the 1-2 sealing part 512 can be defined as the sum of the first length L1 and the second length L2.

[0110] The first length L1 can be less than 3 mm. Specifically, the first length L1 can be from 100 μm to 2 mm. More specifically, the first length L1 can be from 300 μm to 700 μm. More specifically, the first length L1 can be from 400 μm to 600 μm.

[0111] When the first length L1 exceeds 3 mm, the increased width of the sealing area SA may increase the unnecessary border area. Furthermore, when the first length L1 is less than 200 μm, it is difficult to inject the sealing material into the sealing area SA, and the sealing material may overflow to the outside during the injection process.

[0112] The second length L2 can be less than 2 mm. Specifically, the second length L2 can be from 100 μm to 2 mm. More specifically, the second length L2 can be from 200 μm to 1 mm. More specifically, the second length L2 can be from 300 μm to 700 μm. More specifically, the second length L2 can be from 400 μm to 550 μm.

[0113] When the second length L2 is less than 100 μm, the sealing effect of the light conversion material 330 may be reduced, and the adhesion performance of the seal may be reduced due to the decrease in the contact area of ​​the 1-1 seal 511 or the 1-2 seal 512. In addition, the adhesion may be reduced due to the increase in the seal in the bending region, and the light conversion material may flow out through the gap formed by the peeling of the partition wall and the seal.

[0114] Furthermore, when the second length L2 exceeds 2mm, the area where the sealing part is provided becomes too large, which may increase the unnecessary border area.

[0115] Figure 11 and 12This is a view used to illustrate the deviation length of the sealing part 511 (1-1) and sealing part 512 (1-2) provided in the multiple receiving parts in the direction of the receiving part.

[0116] Reference Figure 11 and 12 The receiving portion 320 may include multiple receiving portions. The first sealing portion 510 and the light conversion material 330 may be disposed in the receiving portion 320. That is, the first sealing portion 510 may be disposed at both ends of each receiving portion 320, and the light conversion material 330 may be disposed between the first sealing portions 510.

[0117] The first sealing portion 510 may have a first length L1 and a second length L2 facing the receiving portion. That is, as described above, the total length L of the first sealing portion 510 may be defined as the sum of the first length L1 and the second length L2.

[0118] The length L of the first sealing portion 510 corresponding to each receiving portion may be the same or different. Specifically, the length L of the first sealing portion 510 may differ by a deviation length VL.

[0119] In other words, the second length L2 can be set differently in each receiving part, so the first sealing part 510 can have different lengths in each receiving part due to the deviation length VL.

[0120] Specifically, the maximum deviation length VL of the first sealing part can be less than 100 μm. More specifically, the maximum deviation length VL of the first sealing part can be from 1 μm to 100 μm. More specifically, the maximum deviation length VL of the first sealing part can be from 20 μm to 80 μm. More specifically, the maximum deviation length VL of the first sealing part can be from 30 μm to 70 μm. More specifically, the maximum deviation length VL of the first sealing part can be from 40 μm to 60 μm.

[0121] Furthermore, the maximum deviation length VL of the first sealing portion can be less than 50% of the first length L1 of the sealing portion. Specifically, the maximum deviation length VL of the first sealing portion can be from 1% to less than 50% of the first length L1 of the sealing portion. Specifically, the maximum deviation length VL of the first sealing portion can be from 2% to less than 40% of the first length L1 of the sealing portion. Specifically, the maximum deviation length VL of the first sealing portion can be from 3% to less than 30% of the first length L1 of the sealing portion. Specifically, the maximum deviation length VL of the first sealing portion can be from 4% to less than 20% of the first length L1 of the sealing portion.

[0122] When the deviation length VL of the first sealing part exceeds 100 μm or exceeds 50% of the first length L1 of the sealing part, the content deviation of the light conversion material provided in the receiving part may occur, which may reduce the brightness uniformity of the optical path control component due to the content change.

[0123] The deviation length of the first sealing part 510 may be due to the different capillary effects of the sealing materials in the multiple receptacles when the sealing part is provided in each receptacle. That is, due to the change in the spacing P of the partition wall parts 310, the cross-sectional area of ​​the receptacle may change in each receptacle, and the change in cross-sectional area may lead to a change in the capillary effect of the sealing material.

[0124] To satisfy the first sealing deviation as described above, the spacing deviation of the partition wall portion 310 can be 40 μm or less. Specifically, the spacing deviation of the partition wall portion 310 can be from 0.001 μm to 40 μm. Specifically, the spacing deviation of the partition wall portion 310 can be from 0.001 μm to 30 μm. Specifically, the spacing deviation of the partition wall portion 310 can be from 0.001 μm to 20 μm. Specifically, the spacing deviation of the partition wall portion 310 can be from 0.001 μm to 10 μm.

[0125] The first length L1, the second length L2, and the deviation length VL can be different from each other.

[0126] The first length L1 can be greater than the second length L2 and the deviation length VL. Furthermore, the second length L2 can be greater than the deviation length VL.

[0127] For example, the second length L2 can be 90% or more of the first length L1. Or, the second length L2 can be 80% or more of the first length L1. Or, the second length L2 can be 70% or more of the first length L1. Or, the second length L2 can be 60% or more of the first length L1. Or, the second length L2 can be 50% or more of the first length L1.

[0128] Since the first length L1 is greater than the second length L2, the increased border area caused by the sealing portion located in the receiving portion 320 can be minimized.

[0129] Meanwhile, the sealing material forming the first sealing portion 510 may include a material with low viscosity. Therefore, the sealing material can be effectively moved to the internal region of the receiving portion through capillary effect.

[0130] Specifically, the sealing material can have a viscosity of less than 1300 cP. More specifically, the sealing material can have a viscosity of between 1200 cP and 1300 cP.

[0131] Furthermore, the sealing material may include materials that can be photocured and have low reactivity with light-converting materials. For example, the sealing material may include the same material as the material forming the dam. For example, the sealing material may include polyurethane acrylate.

[0132] In the following text, reference will be made to Figures 13 to 15 Several embodiments of the optical path control component according to the embodiments are described.

[0133] Reference Figure 13 The lengths of sealing part 511 (1-1) and sealing part 512 (1-2) in the direction of the receiving part may be different.

[0134] Specifically, the length L-1 of the 1-1 sealing part 511 can be greater than the length L-2 of the 1-2 sealing part 512, or the length L-2 of the 1-2 sealing part 512 can be greater than the length L-1 of the 1-1 sealing part 511.

[0135] Therefore, when optical path control components are applied to display devices, sealing reliability can be improved while maintaining the size of the optical path control components.

[0136] In other words, when the optical path control component is applied to a display device such as a laptop or monitor, it can be used upright at an angle of 45° to 90°. Therefore, since either the 1-1 sealing part 511 or the 1-2 sealing part 512 is located at the bottom, the light conversion material is more likely to flow out due to gravity than the other sealing part.

[0137] Therefore, in the length L-1 of the sealing portion 511 in the direction of the receiving portion and the length L-2 of the sealing portion 512 in the direction of the receiving portion, the length of the sealing portion provided at the lower part is longer than that of the other sealing portions during use, thus effectively preventing the light conversion material from leaking to the outside. Furthermore, since the length of the sealing portion provided at the upper part is formed to maintain the total length of the sealing portion, the size of the light path control component can be maintained. In addition, this reduces the overall size of the frame area.

[0138] Reference Figure 14 The mixing region 800 can be disposed between the light conversion material 330 and the first sealing part 510 within the receiving part 320.

[0139] The mixing region 800 can be a region where a sealing material and a light conversion material are mixed. When the amount of sealing material in the mixing region 800 is greater than the amount of light conversion material, the mixing region 800 can be cured and used as a sealing part. Alternatively, when the amount of light conversion material in the mixing region 800 is greater than the amount of sealing material, the mixing region 800 can be used as a light conversion part.

[0140] Reference Figure 15The first sealing part 510 can be formed by bending in multiple directions.

[0141] Specifically, the first sealing portion 510 may be configured to extend along one longitudinal direction and another longitudinal direction of the receiving portion 320 based on the sealing region SA. Specifically, the first sealing portion 510 may include a first curved region C1 extending along the direction of the light conversion material 330 and a second curved region C2 extending along the direction of the dam portion 600.

[0142] The lengths of the first curved region C1 and the second curved region C2 in the direction of the receiving portion 320 can be equal. Alternatively, the lengths of the first curved region C1 and the second curved region C2 in the direction of the receiving portion 320 can be different.

[0143] Because the second curved region C2 is formed, gaps can be prevented from forming between the dam section 600 and the first sealing section 510. Therefore, gaps can be prevented from being visually detected from the outside, and uneven brightness caused by differences in transmittance of the receiving section due to gaps can be prevented.

[0144] Figures 16 to 21 It is along Figure 1 The cross-sectional view taken by line DD′. That is to say, Figures 16 to 21 It is a cross-sectional view taken along one end and the other end of the electrode region formed on the second substrate 120.

[0145] Reference Figure 1 , Figure 16 and Figure 17 An electrode region EA can be formed on the second substrate 120. The electrode region EA can be formed as a region that penetrates the second substrate 120. That is, the electrode region EA can be a hole region formed in the second substrate 120.

[0146] Specifically, the electrode region EA can be formed by the second substrate 120, the second electrode 210, the buffer layer 420, and the light conversion unit 300. For example, see reference... Figure 16 The electrode region EA can be formed by penetrating the second substrate 120, the second electrode 220, and the buffer layer 420, and completely or partially removing the light conversion section 300. (Refer to...) Figure 17 The electrode region EA can be formed to penetrate the second substrate 120, the second electrode 220, the buffer layer 420 and the light conversion part 300.

[0147] The length of the electrode region EA can be less than the length of the receiving portion 320, and the width of the electrode region EA can be greater than the width of the receiving portion 320.

[0148] The electrode region EA can be spaced apart from both ends of the second substrate 120 in the first direction 1A and both ends of the second substrate 120 in the second direction 2A. That is, the electrode region EA can be disposed within the second substrate 120.

[0149] Conductive material can be disposed within the electrode region EA. That is, the electrode connection portion 700, which includes conductive material connected to the second electrode 220, can be disposed within the electrode region EA.

[0150] In other words, the electrode connection portion 700, which includes conductive material, can be disposed within the electrode region EA, and the electrode connection portion 700 can be used as the second connection region CA2 of the second substrate 120.

[0151] The electrode connection portion 700 may include multiple layers. Specifically, the electrode connection portion 700 may include a first electrode layer 710 and a second electrode layer 720. Specifically, the electrode connection portion 700 may include a first electrode layer 710 disposed within the electrode region EA and a second electrode layer 720 disposed on the first electrode layer 710.

[0152] Specifically, the first electrode layer 710 can be disposed within the electrode region EA and can be configured to contact the second substrate 120, the second electrode 220, the buffer layer 420 and the light conversion unit 300.

[0153] For example, the first electrode layer 710 may be configured to contact the side surface of the second substrate 120, the side surface of the second electrode 220, the side surface of the buffer layer 420, and the side surface of the light conversion section 300.

[0154] Here, the side surface of the light conversion unit 300 may be the side surface of the partition wall portion 310 constituting the light conversion unit 300, the side surface of the receiving portion 320 constituting the light conversion unit 300, or the side surfaces of the partition wall portion 310 and the receiving portion 320.

[0155] The second electrode layer 720 can be disposed within the electrode region EA and can be configured to contact the first electrode layer 710.

[0156] For example, such as Figure 16 As shown, when the electrode region EA is formed to partially penetrate the light conversion unit 300, the side surface of the second electrode layer 720 is configured to contact the first electrode layer 710, and the bottom surface of the second electrode layer 720 is configured to contact the light conversion unit 300.

[0157] Or, such as Figure 17 As shown, when the electrode region EA is formed to fully transmit the light conversion section 300, the side surface of the second electrode layer 720 is configured to contact the first electrode layer 710, and the bottom surface of the second electrode layer 720 is configured to contact the top surface of the adhesive layer 410.

[0158] The first electrode layer 710 and the second electrode layer 720 may have different physical properties and thicknesses.

[0159] Specifically, the first electrode layer 710 and the second electrode layer 720 can have different flexibility characteristics. The flexibility of the first electrode layer 710 can be greater than that of the second electrode layer 720. That is, even if the stress is greater than that of the second electrode layer 720, the first electrode layer 710 will not undergo plastic deformation. In other words, when the optical path control component bends, the first electrode layer 710 can undergo plastic deformation with a curvature greater than that of the second electrode layer 720.

[0160] Furthermore, the first electrode layer 710 and the second electrode layer 720 can have different transmittances. Specifically, the transmittance of the first electrode layer 710 can be greater than that of the second electrode layer 720.

[0161] Furthermore, the first electrode layer 710 and the second electrode layer 720 may have different conductivity. Specifically, the conductivity of the second electrode layer 720 may be greater than that of the first electrode layer 710.

[0162] Furthermore, the first electrode layer 710 and the second electrode layer 720 can have different thicknesses. For example, the thickness T1 of the first electrode layer 710 can be less than the thickness T2 of the second electrode layer 720. Specifically, the maximum thickness of the first electrode layer 710 can be less than the maximum thickness of the second electrode layer 720.

[0163] For example, the first electrode layer 710 can be formed to have a thickness on the nanometer scale. Specifically, the thickness T1 of the first electrode layer 710 can be from 5 nm to 30 nm. In terms of manufacturing process, it may be difficult to make the thickness of the first electrode layer 710 less than 5 nm, and when the thickness of the first electrode layer 710 exceeds 30 nm, the flexibility of the electrode connection may be reduced due to the thickness of the first electrode layer 710.

[0164] Furthermore, the first electrode layer 710 and the second electrode layer 720 can be configured with different volumes. Specifically, the volume of the second electrode layer 720 can be larger than the volume of the first electrode layer 710.

[0165] Furthermore, the first electrode layer 710 and the second electrode layer 720 may have different adhesive properties. Specifically, compared with the second electrode layer 720, the first electrode layer 710 may have better adhesion to at least one of the second substrate 120 and the second electrode 220.

[0166] Therefore, the overall adhesion of the electrode connection portion 700 can be improved by the first electrode layer 710.

[0167] The first electrode layer 710 and the second electrode layer 720 may include conductive materials. Specifically, the first electrode layer 710 and the second electrode layer 720 may include different conductive materials.

[0168] For example, the first electrode layer 710 may include a transparent conductive material such as indium tin oxide, a conductive polymer, and a metallic material such as copper, but the embodiments are not limited thereto.

[0169] Additionally, the second electrode layer 720 may include a conductive paste. For example, the second electrode layer 720 may include a metal paste. For example, the second electrode layer 720 may include a silver paste.

[0170] The electrode connection portion 700 can have improved adhesion through the first electrode layer 710 and the second electrode layer 720.

[0171] The electrode region EA is formed through the second substrate 120, the second electrode 220, the buffer layer 420, and the light conversion unit 300. In this case, since the second substrate 120, the second electrode 220, the buffer layer 420, and the light conversion unit 300 are made of different materials, the inner surface of the electrode region EA may be stepped or uneven rather than flat due to each layer having a step or uneven surface.

[0172] At this time, when the second electrode layer 720 is formed only in the electrode region EA, the electrode connection portion 700 and the inner surface of the electrode region EA are not completely bonded to each other, and a partially raised area is formed, which may reduce the adhesion of the electrode connection portion 700 due to the reduction of the contact area.

[0173] Therefore, by first forming a first electrode layer in the electrode region to remove steps and other defects generated during the formation of the electrode region, and then providing a second electrode layer, the contact area of ​​the second electrode layer can be increased. This increases the contact area of ​​the electrode connection within the electrode region, thereby improving adhesion.

[0174] In addition, the electrode connection portion 700 can have improved reliability through the first electrode layer 710 and the second electrode layer 720.

[0175] The second electrode layer may include conductive paste, which may become more brittle after curing. Therefore, when the optical path control component is applied to a curved display device, plastic deformation can easily occur even at small curvatures due to the stress generated by bending, and cracks may appear at the contact surface of the electrode area, potentially causing the electrode connection to break off from the second electrode.

[0176] Therefore, by first forming a first electrode layer with a thin film thickness or with a higher flexibility than the second electrode layer, and then forming the second electrode layer, when the optical path control component is applied to a flexible display device, the cracks that appear in the electrode connection and the resulting disconnection can be minimized by minimizing the plastic deformation in the first electrode layer.

[0177] Furthermore, the electrode connection portion 700 can have improved light transmittance through the first electrode layer 710 and the second electrode layer 720.

[0178] The second electrode layer may include a conductive paste, and the conductive paste has a very low transmittance, so that the overall transmittance of the optical path control component can be reduced by reducing the transmittance of light passing through the electrode connection.

[0179] Therefore, by forming a first electrode layer with a relatively higher transmittance than the second electrode layer on the surface of the electrode connection portion, a relatively high transmittance can be achieved compared to an electrode connection portion consisting only of the second electrode layer.

[0180] Furthermore, the electrode connection portion 700 can have improved conductivity through the first electrode layer 710 and the second electrode layer 720.

[0181] In other words, since the second electrode layer with higher conductivity is configured to have a larger thickness and volume than the first electrode layer with lower conductivity, the conductivity of the electrode connection can be prevented from decreasing while improving the flexibility.

[0182] At the same time, refer to Figure 18 and Figure 19 The electrode connection part 700 can be provided on the entire surface of the inner surface of the electrode region EA.

[0183] Specifically, refer to Figure 18 The electrode connection portion 700 can contact the side surface of the second substrate 120 formed by the electrode region EA, the side surface of the second electrode 220 formed by the electrode region EA, the side surface of the buffer layer 420 formed by the electrode region EA, and the side surface of the light conversion portion 300 formed by the electrode region EA. The electrode connection portion 700 can also contact the upper surface of the light conversion portion 300 exposed through the electrode region EA, that is, at least one of the upper surface of the partition wall portion 310 and the upper surface of the receiving portion 320.

[0184] Or, refer to Figure 19The electrode connection portion 700 can contact the side surface of the second substrate 120 formed by the electrode region EA, the side surface of the second electrode 220 formed by the electrode region EA, the side surface of the buffer layer 420 formed by the electrode region EA, and the side surface of the light conversion portion 300 formed by the electrode region EA. Furthermore, the electrode connection portion 700 can contact the upper surface of the adhesive layer 410 exposed through the electrode region EA.

[0185] Since the electrode connection portion 700 is provided on all the inner surfaces of the electrode region EA exposed through the electrode region EA, the adhesion of the electrode connection portion 700 is improved, and the adhesion difference between the lower surface and the inner surface of the electrode region is eliminated, thereby preventing specific areas of the electrode connection portion from peeling off when the optical path control component is applied to a curved display device.

[0186] At the same time, refer to Figure 20 and 21 The electrode region EA can be formed by penetrating only the second substrate 120 and the second electrode 220.

[0187] Therefore, the side surface of the second substrate 120, the side surface of the second electrode 220, and the upper surface of the buffer layer 420 can be exposed through the electrode region EA.

[0188] Reference Figure 20 The electrode connection portion 700 can be configured to contact the side surface of the second substrate 120 formed by the electrode region EA and the side surface of the second electrode 220 formed by the electrode region EA.

[0189] Or, refer to Figure 21 The electrode connection portion 700 can be configured to contact the side surface of the second substrate 120 formed by the electrode region EA, the side surface of the second electrode 220 formed by the electrode region EA, and the upper surface of the buffer layer 420 formed by the electrode region EA.

[0190] By reducing the depth of the electrode region EA where the electrode connection portion 700 is located, the area where the second electrode 220 with low light transmittance is located can be reduced. In other words, since the electrode region EA is formed only at the depth to which the side surface of the second electrode 220 connected to the electrode connection portion 700 is exposed, the thickness of the second electrode layer at the electrode connection portion can be reduced.

[0191] Therefore, the optical path control component can minimize the reduction in transmittance caused by the second electrode layer.

[0192] In the following text, refer to Figure 1 , Figure 22 and Figure 23 The optical path control component, including the first sealing part described above, will be described in detail.

[0193] Reference Figure 1 , Figure 22 and Figure 23 According to the embodiment, the optical path control component 1000 may include a first substrate 110, a second substrate 120, a first electrode 210, a second electrode 220, and a light conversion unit 300.

[0194] The first substrate 110 can support the first electrode 210. The first substrate 110 can be rigid or flexible.

[0195] Furthermore, the first substrate 110 may be transparent. For example, the first substrate 110 may include a transparent substrate that is capable of transmitting light.

[0196] The first substrate 110 may include glass, plastic, or a flexible polymer film. For example, the flexible polymer film may be made of any of the following: polyethylene terephthalate (PET), polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer (ABS), polymethyl methacrylate (PMMA), polyethylene naphthalate (PEN), polyethersulfone (PES), cyclic olefin copolymer (COC), triacetyl cellulose (TAC) film, polyvinyl alcohol (PVA) film, polyimide (PI) film, and polystyrene (PS). This is only an example, but the embodiments are not limited thereto.

[0197] In addition, the first substrate 110 can be a flexible substrate with flexible properties.

[0198] Furthermore, the first substrate 110 can be a curved or bent substrate. That is, the optical path control member including the first substrate 110 can also be formed to have flexible, curved, or bent characteristics. Therefore, the optical path control member according to the embodiment can be modified into various designs.

[0199] The first substrate 110 may extend along a first direction 1A, a second direction 2A and a third direction 3A.

[0200] Specifically, the first substrate 110 may include a first direction 1A corresponding to the length or width direction of the first substrate 110, a second direction 2A extending in a direction different from the first direction and corresponding to the length or width direction of the first substrate 110, and a third direction 3A extending in a direction different from the first and second directions and corresponding to the thickness direction of the first substrate 110.

[0201] For example, the first direction 1A can be defined as the length direction of the first substrate 110, the second direction 2A can be defined as the width direction of the first substrate 110 perpendicular to the first direction 1A, and the third direction 3A can be defined as the thickness direction of the first substrate 110. Alternatively, the first direction 1A can be defined as the width direction of the first substrate 110, the second direction 2A can be defined as the length direction of the first substrate 110 perpendicular to the first direction 1A, and the third direction 3A can be defined as the thickness direction of the first substrate 110.

[0202] In the following text, for ease of description, the first direction 1A is described as the length direction of the first substrate 110, the second direction 2A is described as the width direction of the first substrate 110, and the third direction 3A is described as the thickness direction of the first substrate 110.

[0203] The first electrode 210 can be disposed on one surface of the first substrate 110. Specifically, the first electrode 210 can be disposed on the upper surface of the first substrate 110. That is, the first electrode 210 can be disposed between the first substrate 110 and the second substrate 120.

[0204] The first electrode 210 may include a transparent conductive material. For example, the first electrode 210 may include a conductive material having a light transmittance of about 80% or more. For example, the first electrode 210 may include metal oxides such as indium tin oxide, indium zinc oxide, copper oxide, tin oxide, zinc oxide, titanium oxide, etc.

[0205] The first electrode 210 can have a thickness of 10 nm to 300 nm.

[0206] Alternatively, the first electrode 210 may comprise various metals to achieve low resistance. For example, the first electrode 210 may comprise at least one metal selected from chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), molybdenum (Mo), gold (Au), titanium (Ti), and alloys thereof.

[0207] The first electrode 210 may be disposed on the entire surface of one surface of the first substrate 110. Specifically, the first electrode 210 may be disposed as a surface electrode on one surface of the first substrate 110. However, the embodiments are not limited thereto, and the first electrode 210 may be formed of a plurality of patterned electrodes having a uniform pattern, for example, a mesh or stripe shape.

[0208] For example, the first electrode 210 may include multiple conductive patterns. Specifically, the first electrode 210 may include multiple intersecting mesh lines and multiple mesh openings formed by the mesh lines.

[0209] Therefore, even though the first electrode 210 includes metal, it cannot be visually identified from the outside, thereby improving visibility. Furthermore, by increasing light transmittance through the opening, the brightness of the light path control member according to the embodiment can be improved.

[0210] The second substrate 120 may be disposed on the first substrate 110. Specifically, the second substrate 120 may be disposed on the first electrode 210 on the first substrate 110.

[0211] The second substrate 120 may include a material capable of transmitting light. The second substrate 120 may include a transparent material. The second substrate 120 may include a material that is the same as or similar to the first substrate 110 described above.

[0212] For example, the second substrate 120 may include glass, plastic, or a flexible polymer film. For instance, the flexible polymer film may be made of any of the following: polyethylene terephthalate (PET), polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer (ABS), polymethyl methacrylate (PMMA), polyethylene naphthalate (PEN), polyethersulfone (PES), cyclic olefin copolymer (COC), triacetyl cellulose (TAC) film, polyvinyl alcohol (PVA) film, polyimide (PI) film, and polystyrene (PS). This is merely an example, and the embodiments are not limited thereto.

[0213] In addition, the second substrate 120 can be a flexible substrate with flexible properties.

[0214] Furthermore, the second substrate 120 can be a curved or bent substrate. That is, the optical path control member including the second substrate 120 can also be formed to have flexible, curved, or bent characteristics. Therefore, the optical path control member according to the embodiment can be modified into various designs.

[0215] Similar to the first substrate 110 described above, the second substrate 120 may also extend along the first direction 1A, the second direction 2A and the third direction 3A.

[0216] Specifically, the second substrate 120 may include a first direction 1A that is parallel to the length or width direction of the second substrate 120, a second direction 2D that extends in a direction different from the first direction and corresponds to the length or width direction of the second substrate 120, and a third direction 3D that extends in a direction different from the first and second directions and corresponds to the thickness direction of the second substrate 120.

[0217] For example, the first direction 1A can be defined as the length direction of the second substrate 120, the second direction 2A can be defined as the width direction of the second substrate 120 perpendicular to the first direction 1A, and the third direction 3A can be defined as the thickness direction of the second substrate 120.

[0218] Alternatively, the first direction 1A can be defined as the width direction of the second substrate 120, the second direction 2A can be defined as the length direction of the second substrate 120 perpendicular to the first direction 1A, and the third direction 3A can be defined as the thickness direction of the second substrate 120.

[0219] In the following text, for ease of description, the first direction 1A is described as the length direction of the second substrate 120, the second direction 2A is described as the width direction of the second substrate 120, and the third direction 3A is described as the thickness direction of the second substrate 120.

[0220] The second electrode 220 can be disposed on one surface of the second substrate 120. Specifically, the second electrode 220 can be disposed on the lower surface of the second substrate 120. That is, the second electrode 220 can be disposed on the surface of the second substrate 120 that faces the first substrate 110. That is, the second electrode 220 can be disposed facing the first electrode 210 on the first substrate 110. That is, the second electrode 220 can be disposed between the first electrode 210 and the second substrate 120.

[0221] The second electrode 220 may include a material that is the same as or similar to the material of the first electrode 210 described above.

[0222] The second electrode 220 may include a transparent conductive material. For example, the second electrode 220 may include a conductive material having a light transmittance of about 80% or more. For example, the second electrode 220 may include metal oxides such as indium tin oxide, indium zinc oxide, copper oxide, tin oxide, zinc oxide, titanium oxide, etc.

[0223] The second electrode 220 can have a thickness of 10 nm to 300 nm.

[0224] Alternatively, the second electrode 220 may comprise various metals to achieve low resistance. For example, the second electrode 220 may comprise at least one metal selected from chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), molybdenum (Mo), gold (Au), titanium (Ti), and alloys thereof.

[0225] The second electrode 220 may be disposed on the entire surface of one surface of the second substrate 120. However, the embodiments are not limited thereto, and the second electrode 220 may be formed of a plurality of patterned electrodes having a uniform pattern, for example, a mesh or stripe shape.

[0226] For example, the second electrode 220 may include multiple conductive patterns. Specifically, the second electrode 220 may include multiple intersecting mesh lines and multiple mesh openings formed by the mesh lines.

[0227] Therefore, even though the second electrode 220 includes metal, it cannot be visually identified from the outside, thereby improving visibility. Furthermore, by increasing light transmittance through the opening, the brightness of the light path control member according to the embodiment can be improved.

[0228] The first substrate 110 and the second substrate 120 may include protrusions. (Refer to...) Figure 1 The first substrate 110 may include a first protrusion, and the second substrate 120 may include a second protrusion. Specifically, the first substrate 110 and the second substrate 120 may include a first protrusion and a second protrusion respectively configured to be misaligned with each other.

[0229] The connection area that connects to an external printed circuit board or flexible printed circuit board can be formed in the first protrusion of the first substrate 110 and the second protrusion of the second substrate 120, respectively.

[0230] Specifically, the first connecting region CA1 can be disposed on the first protrusion, and the second connecting region CA2 can be disposed on the second protrusion. When the first protrusion and the second protrusion are disposed in a misaligned position, the first connecting region CA1 and the second connecting region CA2 can be configured not to overlap in the third direction 3A.

[0231] The first connecting region CA1 and the second connecting region CA2 can be set on the same plane. Alternatively, the first connecting region CA1 and the second connecting region CA2 can be set on different surfaces.

[0232] When the first connection area CA1 and the second connection area CA2 are disposed on the same plane, when the first connection area CA1 and the second connection area CA2 are connected to a printed circuit board or a flexible printed circuit board, they can be connected on the same plane, so they can be easily connected.

[0233] Conductive materials can be exposed on the upper surfaces of the first connection region CA1 and the second connection region CA2, respectively. For example, the first electrode 210 can be exposed in the first connection region CA1, and the electrode connection portion 700 filling the hole formed in the second substrate 120 can be exposed in the second connection region CA2. The optical path control component can be electrically connected to an external printed circuit board or a flexible printed circuit board through the first connection region CA1 and the second connection region CA2.

[0234] For example, pad portions can be provided on the first connection area CA1 and the second connection area CA2, and a conductive adhesive including at least one of anisotropic conductive film (ACF) and anisotropic conductive paste (ACP) can be provided between the pad portions and the printed circuit board or flexible printed circuit board to connect the optical path control components.

[0235] Alternatively, a conductive adhesive comprising at least one of anisotropic conductive film (ACF) and anisotropic conductive paste (ACP) can be provided between the first connection area CA1 and the second connection area CA2 and the printed circuit board or flexible printed circuit board to directly connect the optical path control component without the need for solder pads.

[0236] The optical path control component may include multiple sealing parts.

[0237] Reference Figure 1 , Figure 22 and Figure 23 The optical path control component may include a first sealing portion 510 extending along a first direction of the optical path control component and a second sealing portion 520 extending along a second direction of the optical path control component.

[0238] The first sealing portion 510 may extend in a direction different from the longitudinal direction of the receiving portion 320. Furthermore, the second sealing portion 520 may extend in a direction that is the same as or similar to the longitudinal direction of the receiving portion 320.

[0239] The first sealing portion 510 can be disposed in the two end regions of the optical path control member along the second direction. Specifically, the first sealing portion 510 can be disposed at one end and the other end of the optical path control member along the second direction.

[0240] Furthermore, the second sealing portion 520 may be disposed in the two end regions of the optical path control member along the first direction. Specifically, the second sealing portion 520 may be disposed at one end and the other end of the optical path control member along the first direction.

[0241] The first sealing portion 510 can be formed by the above-described process. Alternatively, the second sealing portion 520 can be formed by placing a sealing material in the sealing area formed by removing the second substrate 120, the second electrode 220, the buffer layer 420, the base 350, and part or all of the partition wall portion 310.

[0242] 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.

[0243] An adhesive layer or a buffer layer may be disposed between the light conversion unit 300 and the first substrate 110 or between the light conversion unit 300 and the second substrate 120, and the first substrate 110, the second substrate 120, and the light conversion unit 300 may be bonded to each other by the adhesive layer and / or the buffer layer.

[0244] For example, the adhesive layer 410 can be disposed between the first electrode 210 and the light conversion part 300, thereby bonding the first substrate 110 and the light conversion part 300.

[0245] Furthermore, a buffer layer 420 can be disposed between the second electrode 220 and the light conversion part 300, thereby improving the adhesion between the second electrode 220 and the light conversion part 300, which are made of different materials.

[0246] The light conversion unit 300 may include multiple partition walls 310 and multiple receiving units 320. A light conversion material 330, including light conversion particles that move when a voltage is applied, and a dispersion liquid for dispersing the light conversion particles may be disposed in the receiving units, and the light transmission characteristics of the light path control component may be changed by the light conversion particles.

[0247] In addition, the aforementioned first sealing part 510 and the dam part 600 for easy injection of light conversion material 330 can be provided in the receiving part 320.

[0248] The receiving portion 320 can be configured to extend in one direction. Specifically, the receiving portion 320 can extend in a direction corresponding to the second direction 2A of the first substrate 110 or the second substrate 120. That is, the receiving portion 320 can extend and be provided in a direction corresponding to the width direction of the first substrate 110 or the second substrate 120.

[0249] Therefore, the two ends of the receiving portion 320 of the optical path control member according to the embodiment can be respectively configured to face the two ends of the first substrate 110 or the second substrate 120. That is, one end of the receiving portion 320 faces one end of the first substrate 110 or the second substrate 120 in the second direction 2A, and the other end of the receiving portion 320 faces the other end of the first substrate 110 or the second substrate 120 in the second direction 2A.

[0250] Therefore, the two ends of the receiving portion 320 can be configured to contact the first sealing portion 510 which is disposed facing each other in the second direction 2A, and can be configured to be separated from the second sealing portion 520.

[0251] Meanwhile, the receiving portion 320 may extend to the second protrusion, and the receiving portion 320 on the second protrusion may not include light conversion material or may include less light conversion material than the other receiving portion.

[0252] Meanwhile, the receiving portion 320 can be tilted at a predetermined angle relative to the second direction of the first substrate 110 or the second substrate 120.

[0253] In other words, the receiving portion 320 can be tilted at a predetermined angle relative to the second direction of the optical path control member.

[0254] Therefore, when the optical path control component and the display panel are combined to form a display device, ripples can be prevented due to the overlap between the pattern of the receiving part of the optical path control component and the pixel pattern of the display panel.

[0255] Therefore, it can prevent the visual recognition of patterns caused by the overlap between the pattern of the housing of the optical path control component and the pixel pattern of the display panel when the user views the display device from the outside.

[0256] Reference Figure 22 and Figure 23 The light conversion unit 300 may include a partition wall portion 310 and a receiving portion 320.

[0257] The partition wall portion 310 can be defined as a partition wall separating the receiving portions. That is, the partition wall portion 310 can transmit light as a partition wall region separating multiple receiving portions. In other words, light emitted along the direction of the first substrate 110 or the second substrate 120 can pass through the partition wall portion.

[0258] The receiving portion 320 can be formed to partially transmit light conversion portion 300. Therefore, the receiving portion 320 can be configured to contact the adhesive layer 410 and be spaced apart from the buffer layer 420. Therefore, a base portion 350 can be formed between the receiving portion 320 and the buffer layer 420.

[0259] The base 350 may be disposed on the partition wall portion 310. Specifically, the base 350 may be disposed below the second electrode 220, and the partition wall portion 310 may be disposed below the base 350.

[0260] The partition wall portion 310 and the base portion 350 may include a resin material. For example, the partition wall portion 310 and the base portion 350 may include a UV-curable resin material. For example, the partition wall portion 310 may include a UV resin or a transparent photoresist resin. Alternatively, the partition wall portion 310 may include a polyurethane resin or an acrylic resin.

[0261] The partition wall portion 310 and the receiving portion 320 may be configured to extend along a second direction 2A of the first substrate 110 and the second substrate 120. That is, the partition wall portion 310 and the receiving portion 320 may be configured to extend along the width direction or the length direction of the first substrate 110 and the second substrate 120.

[0262] The partition wall portion 310 and the receiving portion 320 can be configured to have different widths. For example, the width of the partition wall portion 310 can be greater than the width of the receiving portion 320.

[0263] Furthermore, the receiving portion 320 may be formed in a shape that extends from the first electrode 210 toward the second electrode 220 and narrows in width.

[0264] The partition wall portion 310 and the receiving portion 320 can be arranged alternately. Specifically, the partition wall portion 310 and the receiving portion 320 can be arranged alternately. That is, each partition wall portion 310 can be arranged between adjacent receiving portions 320, and each receiving portion 320 can be arranged between adjacent partition wall portions 310.

[0265] A light conversion material 330 including light conversion particles 330b and a dispersion 330a in which light conversion particles 330b are dispersed can be disposed in a receiving portion 320.

[0266] Dispersion 330a can be a material used to disperse light-converting particles 330b. Dispersion 330a may include a transparent material. Dispersion 330a may include a non-polar solvent. Furthermore, dispersion 330a may include a material capable of transmitting light.

[0267] The light conversion particles 330b can be configured to be dispersed in the dispersion 330a. Specifically, multiple light conversion particles 330b can be configured to be spaced apart from each other in the dispersion 330a.

[0268] The light conversion particle 330b may include a material capable of absorbing light. That is, the light conversion particle 330b may be a light-absorbing particle. The light conversion particle 330b may have a color. For example, the light conversion particle 330b may have a black-based color. As an example, the light conversion particle 330b may include carbon black.

[0269] The light-converting particle 330b can be polarized by charging its surface. For example, the surface of the light-converting particle 330b can carry a negative (-) charge. Therefore, depending on the applied voltage, the light-converting particle 330b can move toward the first electrode 210 or the second electrode 220.

[0270] The transmittance of the receiving portion 320 can be changed by the light conversion particles 330b. Specifically, by changing the transmittance due to the movement of the light conversion particles 330b, the receiving portion 320 can be transformed into a light-blocking portion and a light-transmitting portion. That is, the transmittance of light passing through the receiving portion 320 can be changed by the dispersion and aggregation of the light conversion particles 330b disposed in the dispersion liquid 330a.

[0271] For example, the optical path control component according to the embodiment can switch from a first mode to a second mode or from a second mode to a first mode by applying a voltage to the first electrode 210 and the second electrode 220.

[0272] Specifically, in the optical path control component according to the embodiment, the receiving portion 320 becomes a light-shielding portion in the first mode, and light at a specific angle can be blocked by the receiving portion 320. That is, the user's viewing angle from the outside is narrowed, allowing the optical path control component to be operated in a privacy mode.

[0273] Furthermore, in the optical path control member according to the embodiment, the receiving portion 320 becomes a light-transmitting portion in the second mode, and light can be transmitted through both the partition wall portion 310 and the receiving portion 320 in the optical path control member according to the embodiment. That is, the user's viewing angle from the outside can be widened, allowing the optical path control member to be driven in an exposed mode.

[0274] The switching from the first mode to the second mode can be achieved by moving the light-converting particles 330b in the receiving portion 320; that is, the receiving portion 320 switches from a light-blocking portion to a light-transmitting portion. In other words, the surface of the light-converting particles 330b can carry a charge and can move towards the first electrode or the second electrode based on the applied voltage according to the charge characteristics. In other words, the light-converting particles 330b can be electrophoretic particles.

[0275] For example, when no voltage is applied to the optical path control member from the outside, the light conversion particles 330b of the receiving portion 320 are uniformly dispersed in the dispersion liquid 330a, and the receiving portion 320 can block light through the light conversion particles 330b. Therefore, in the first mode, the receiving portion 320 can be driven as a light-shielding portion.

[0276] Furthermore, the light conversion particle 330b can be moved when a voltage is applied to the optical path control member from the outside. For example, the light conversion particle 330b can be moved toward one end or the other end of the receiving portion 320 by the voltage transmitted by the first electrode 210 and the second electrode 220. That is, the light conversion particle 330b can move from the receiving portion 320 toward the first electrode 210 or the second electrode 220.

[0277] For example, when a voltage is applied to the first electrode 210 and / or the second electrode 220, an electric field is formed between the first electrode 210 and the second electrode 220, and the negatively charged light conversion particles 330b can move toward the positive electrodes of the first electrode 210 and the second electrode 220 with the dispersion liquid 330a as the medium.

[0278] As an example, in the initial mode or when no voltage is applied to the first electrode 210 and / or the second electrode 220, such as Figure 22 As shown, the light conversion particles 330b can be uniformly dispersed in the dispersion liquid 330a, and the receiving part 320 can be driven as a light-shielding part.

[0279] Furthermore, when a voltage is applied to the first electrode 210 and / or the second electrode 220, such as Figure 23 As shown, the light-converting particles 330b can move towards the second electrode 220 in the dispersion 330a. That is, the light-converting particles 330b move in one direction, and the receiving portion 320 can be driven to become a light-transmitting portion.

[0280] Therefore, the optical path control member according to the embodiment can be driven in two modes depending on the user's surrounding environment. That is, when the user only needs light transmission at a specific viewing angle, the receiving part can be driven as a light-blocking part, or in an environment where the user needs high brightness, a voltage can be applied to drive the receiving part as a light-transmitting part.

[0281] Therefore, since the optical path control component according to the embodiment can be implemented in two modes according to the user's needs, the optical path control component can be applied regardless of the user's environment.

[0282] The aforementioned second sealing portion 520 can be disposed on the outermost side of the optical path control member. Specifically, the second sealing portions 520 extending along the second direction 2A and facing each other can be disposed on the outermost side of the optical path control member along the first direction 1A.

[0283] The second sealing portion 520 may be disposed in the sealing area formed on the second substrate 120.

[0284] For example, a second sealing portion 520 can be formed by forming a sealing region on the second substrate 120 by removing the light conversion portion 300, which includes the second substrate 120, the second electrode 220, the buffer layer 420, the base 350 and the partition wall portion 310, and by providing a sealing material in the sealing region.

[0285] Therefore, the second sealing portion 520 can be configured to contact the side surface of the second substrate 120. Furthermore, the second sealing portion 520 can be configured to contact the side surface of the second electrode 220. Furthermore, the second sealing portion 520 can be configured to contact the side surface of the buffer layer 420. Furthermore, the second sealing portion 520 can be configured to contact the side surface of the base 350. Furthermore, the second sealing portion 520 can be configured to contact the side surface of the partition wall portion 310.

[0286] The second sealing part 520 is provided on the side surface (i.e., the side surface in the second direction) of the optical path control member, thereby preventing impurities that may penetrate from the outside from penetrating into the interior of the light conversion part 300, that is, penetrating into the receiving part 320 where the light conversion material 330 is provided.

[0287] In the following text, refer to Figures 24 to 28 This section describes a display device that utilizes an optical path control component according to an embodiment.

[0288] Reference Figure 24 and Figure 25 According to the embodiment, the optical path control component 1000 can be disposed above or below the display panel 2000.

[0289] The display panel 2000 and the optical path control component 1000 can be configured to be bonded to each other. For example, the display panel 2000 and the optical path control component 1000 can be bonded to each other via an adhesive layer 1500. The adhesive layer 1500 can be transparent. For example, the adhesive layer 1500 can include an adhesive or adhesive layer containing an optically transparent adhesive material.

[0290] The adhesive layer 1500 may include a release film. Specifically, after bonding the optical path control component to the display panel, the optical path control component and the display panel can be bonded after removing the release film.

[0291] 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 component may be formed below the liquid crystal panel. That is, when the surface viewed by the user in the liquid crystal panel is defined as the upper part of the liquid crystal panel, the light path control component may be disposed below the liquid crystal panel. The display panel 2000 may be formed with the following structure: a first substrate 2100 including thin-film transistors (TFTs) and pixel electrodes and a second substrate 2200 including a color filter layer are bonded to each other, and a liquid crystal layer is interposed between them.

[0292] Furthermore, the display panel 2000 can be a liquid crystal display panel with a color filter on transistor (COT) structure. In the COT structure, thin-film transistors, color filters, and a black matrix are formed on a first substrate 2100, and a second substrate 2200 is bonded to the first substrate 2100, with a liquid crystal layer interposed between them. That is, thin-film transistors can be formed on the first substrate 2100, a protective film can be formed on the thin-film transistors, and a color filter layer can be formed on the protective film. In addition, pixel electrodes that contact the thin-film transistors can be formed on the first substrate 2100. At this time, in order to improve the aperture ratio and simplify the mask process, the black electrolyte can be omitted, and a common electrode can be formed to serve as the black electrolyte.

[0293] In addition, when the display panel 2000 is a liquid crystal display panel, the display device may also include a backlight unit 3000 that provides light from the rear surface of the display panel 2000.

[0294] In other words, such as Figure 24 As shown, the light path control component can be disposed on the backlight unit 3000 below the liquid crystal panel, and the light path control component can be disposed between the backlight unit 3000 and the display panel 2000.

[0295] Or, such as Figure 25 As shown, when the display panel 2000 is an organic light-emitting diode (OLED) panel, the light path control component can be formed above the OLED panel. That is, when the surface seen by a user in the OLED panel is defined as the upper part of the OLED panel, the light path control component can be positioned above the OLED panel. The display panel 2000 may include self-emissive elements that do not require a separate light source. In the display panel 2000, thin-film transistors can be formed on the first substrate 2100, and organic light-emitting elements in contact with the thin-film transistors can be formed. The organic light-emitting element may include an anode, a cathode, and an organic light-emitting layer formed between the anode and cathode. Furthermore, a second substrate 2200 configured as a packaging substrate for encapsulation may be further included on the organic light-emitting element.

[0296] Furthermore, although not shown in the accompanying drawings, a polarizing plate may be further disposed between the optical path control member 1000 and the display panel 2000. The polarizing plate may be a linear polarizing plate or a polarizing plate that prevents reflection of external light. For example, when the display panel 2000 is a liquid crystal display panel, the polarizing plate may be a linear polarizing plate. Furthermore, when the display panel 2000 is an organic light-emitting display panel, the polarizing plate may be a polarizing plate that prevents reflection of external light.

[0297] Furthermore, additional functional layers 1300, such as anti-reflection layers and anti-glare layers, can be further provided on the optical path control component 1000. Specifically, the functional layer 1300 can be bonded to one surface of the first substrate 110 of the optical path control component. Although not shown in the figures, the functional layer 1300 can be bonded to the first substrate 110 of the optical path control component via an adhesive layer. In addition, a release film for protecting the functional layer can be provided on the functional layer 1300.

[0298] In addition, a touch panel can be further installed between the display panel and the optical path control components.

[0299] Although the accompanying drawings show the light path control component disposed at the upper part of the display panel, the embodiment is not limited thereto, and the light path control component can be disposed in various positions, such as a light-adjustable position, i.e., the lower part of the display panel or between the second substrate and the first substrate of the display panel, etc.

[0300] Furthermore, the accompanying drawings show that the light conversion portion of the light path control member according to the embodiment is in a direction parallel or perpendicular to the outer surface of the second substrate; however, the light conversion portion is formed to be inclined at a predetermined angle to the outer surface of the second substrate. Therefore, ripples occurring between the display panel and the light path control member can be reduced.

[0301] Reference Figures 26 to 28The optical path control component according to the embodiment can be applied to various display devices.

[0302] Reference Figures 26 to 28 The optical path control component according to the embodiment can be applied to a display device that displays images.

[0303] For example, such as Figure 26 As shown, when electricity is applied to the optical path control component, the receiving portion acts as a light-transmitting portion, thereby enabling the display device to be driven in an open mode, such as... Figure 27 As shown, when no power is applied to the optical path control member, the receiving part serves as a light-shielding part, thereby enabling the display device to be driven in a light-shielding mode.

[0304] Therefore, users can easily drive the display device in either privacy or normal mode depending on the amount of power applied.

[0305] Light emitted from the backlight unit or the self-emissive element can move from the first substrate to the second substrate. Alternatively, light emitted from the backlight unit or the self-emissive element can also move from the second substrate to the first substrate.

[0306] In addition, refer to Figure 28 The display device that uses the optical path control component according to the embodiment can also be applied to the interior of a vehicle.

[0307] For example, a display device including the optical path control component according to an embodiment can display video confirmation information of the vehicle and the vehicle's movement route. The display device can be disposed between the driver's seat and the passenger seat of the vehicle.

[0308] Furthermore, the optical path control component according to the embodiment can be applied to an instrument panel that displays vehicle speed, engine, alarm signals, etc.

[0309] Furthermore, the optical path control component according to the embodiment can be applied to the windshield (FG) or left and right windows of a vehicle.

[0310] The features, structures, effects, etc., described in the above embodiments are included in at least one embodiment of the present invention, but are not limited to one embodiment. Furthermore, those skilled in the art can combine or modify the features, structures, and effects shown in each embodiment with respect to other embodiments. Therefore, it should be understood that such combinations and modifications are included within the scope of the present invention.

[0311] Furthermore, while the embodiments have been primarily described above, these embodiments are merely examples and do not limit the invention. Those skilled in the art will understand that numerous variations and applications not explicitly stated above can be made without departing from the essential characteristics of the invention. For example, changes can be made to the various components specifically represented in the embodiments. Moreover, it should be understood that differences associated with such changes and applications are included within the scope of the invention as defined in the appended claims.

Claims

1. An optical path control component, comprising: First substrate; The first electrode is disposed above the first substrate; The second substrate is disposed above the first substrate; The second electrode is disposed below the second substrate; as well as The light conversion unit is disposed between the first electrode and the second electrode. The light conversion unit includes multiple partition walls, multiple receiving parts, and a base. The light conversion unit is configured to change the viewing angle of light transmitted through the light path control member by moving the electrophoretic particles caused by applying a voltage between the first electrode and the second electrode, and the electrophoretic particles are disposed in the receiving portion. Each of the partition walls partially separates the light conversion portion, such that the partition wall portions and the receiving portion are alternately arranged, and the base portion is the area formed during the imprinting process for forming the partition wall portions and the receiving portion. The accommodating part is provided with a light conversion material. The optical path control component includes a first sealing portion that seals the light conversion material and is longitudinally arranged in a first direction along which the plurality of receiving portions are alternately arranged. The first sealing portion extends from one end to the other end along a second direction, wherein the first direction is perpendicular to the second direction. The other end of the first sealing portion extends into the interior region of the receiving portion. The optical path control component includes a sealing region formed by removing the second substrate and the second electrode. This sealing region is the area where the second substrate and the second electrode are removed to allow the light conversion material and sealing material to be injected. The first sealing portion extends toward each of the alternately arranged plurality of receiving portions. The first sealing portion includes a curved region located between one end and the other end. The curved region is formed for each of the plurality of receiving portions. The first sealing portion includes a first length disposed in the sealing region and a second length disposed in the receiving portion. The first length and the second length are defined as the lengths along the extension direction of the receiving portion, and the first length and the second length are defined for each of the plurality of receiving portions. In each of the plurality of receiving portions, the maximum deviation length of the second length is less than 100 μm. The first sealing portion includes a plurality of curved regions that contact each of the plurality of receiving portions.

2. The optical path control component according to claim 1, wherein, The first sealing part includes a 1-1 sealing part and a 1-2 sealing part arranged to face each other.

3. The optical path control component according to claim 1, wherein, The first sealing part includes the sealing material. The first sealing part contacts the inner surface of the receiving part.

4. The optical path control component according to claim 2, wherein, The second length is 100 μm to 2 mm.

5. The optical path control component according to claim 4, wherein, The first length is from 100 μm to 2 mm.

6. The optical path control component according to claim 5, wherein, The second length is at least 50% of the first length.

7. The optical path control component according to claim 1, wherein, The maximum deviation length of the second length set in the plurality of accommodating portions is 1 μm to 100 μm.

8. The optical path control component according to claim 1, wherein, The spacing deviation of the partition wall is less than 40 μm.

9. The optical path control component according to claim 1, wherein, The first length, the second length, and the deviation length are different.

10. The optical path control component according to claim 9, wherein, The first length is greater than the second length and the deviation length. Wherein, the second length is greater than the deviation length.

11. The optical path control component according to claim 3, wherein, The viscosity of the sealing material is 1200 cP to 1300 cP.

12. The optical path control component according to claim 2, wherein, The lengths of the 1-1 sealing portion and the 1-2 sealing portion are different from each other.

13. The optical path control component according to claim 1 further includes a mixing region between the first sealing portion and the light conversion material.

14. The optical path control component according to claim 13, wherein, The mixing region is defined as the area where the sealing material and the light conversion material are mixed.

15. The optical path control component according to claim 1, wherein, The first sealing part is bent in multiple directions.

16. The optical path control component according to claim 1, wherein, The first sealing portion includes a first curved region extending toward the light conversion material and a second curved region extending along the direction of the dam portion.

17. The optical path control component according to claim 16, wherein, The length of the first curved region is different from the length of the second curved region.

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

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