Display device

Abstract

A display device including a light source unit including a plurality of light sources, a cover bottom including a horizontal surface on which the plurality of light sources are disposed and a side surface curved along an edge of the horizontal surface, an optical unit on the light source unit, a display panel on the optical unit, a first module film which is transparent, supports a rear surface of the optical unit, and includes a first edge portion attached and fixed to an outer side of the side surface of the cover bottom, and a second module film which is transparent, attached to a rear surface of the display panel, and includes a second edge portion attached and fixed to an outer side of the first edge portion.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2021-0179025, filed in Korea on December 14, 2021, which is incorporated herein by reference in its entirety for all purposes, as fully set forth herein. Technical Field

[0003] This disclosure relates to display devices, and more particularly to display devices with narrow bezels. Background Technology

[0004] Recently, with the development of information technology and mobile communication technology, display devices capable of visually displaying information have been developed. Display devices are mainly divided into self-emissive display devices with emission characteristics and non-self-emissive display devices that can display images using other external components.

[0005] A liquid crystal display (LCD) device can be exemplified as a non-self-emissive display device that does not have a self-emissive element.

[0006] Therefore, LCDs, as non-self-emissive display devices, require a separate light source. A backlight unit with a light source is located on the back of the LCD to illuminate the front of the LCD, thus enabling a recognizable image.

[0007] Meanwhile, the application of this display device has recently expanded beyond portable computers to include desktop computer monitors and wall-mounted televisions. Research has been actively conducted to achieve a significant reduction in weight and size while maintaining a large display capacity.

[0008] In addition to being lightweight and having a thin profile, a narrow bezel is also required, where the display area is wide, while the bezel area, which is the non-display area outside the display area, is formed as small as possible.

[0009] Therefore, by removing the top cover used for the modular display panel and backlight unit, and attaching and securing the display panel to the guide panel using adhesive pads such as double-sided tape, a lightweight, thin profile, and narrow bezel are desired. However, this display device also has limitations in terms of narrow bezels, thus failing to meet the recent demand for narrow bezels. Summary of the Invention

[0010] Therefore, this disclosure relates to a display device that substantially eliminates one or more problems caused by the limitations and disadvantages of the prior art.

[0011] The advantage of this disclosure is that it provides a display device with a lightweight, thin profile and narrow bezel.

[0012] Another advantage of the present disclosure is to provide a display device that can reduce processing costs and improve processing efficiency.

[0013] Additional features and advantages of the present disclosure will be set forth in the description below, and in part will become apparent from the description, or can be learned by practice of the present disclosure. These and other advantages of the present disclosure will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

[0014] To achieve these and other advantages and in accordance with the purpose of the present disclosure, as embodied and broadly described herein, a display device includes a light source unit including a plurality of light sources, a cover bottom including a horizontal surface on which the plurality of light sources are disposed and a side surface curved along an edge of the horizontal surface, an optical unit on the light source unit, a display panel on the optical unit, a first module film that is transparent, supports a rear surface of the optical unit, and includes a first edge portion attached and fixed to an outer side of the side surface of the cover bottom, and a second module film that is transparent, attached to a rear surface of the display panel, and includes a second edge portion attached and fixed to an outer side of the first edge portion.

[0015] According to another embodiment of the present disclosure, a display device includes a display panel, a backlight unit disposed on a rear surface of the display panel and including a light source unit including a plurality of light sources, a reflection plate disposed on the light source unit and including a plurality of through-holes exposing only the plurality of light sources, and an optical unit disposed on the reflection plate, a cover bottom including a horizontal surface on which the plurality of light sources are disposed and a side surface curved along an edge of the horizontal surface, a first module film that is transparent, supports a rear surface of the optical unit, and includes a first edge portion attached and fixed to an outer side of the side surface of the cover bottom, and a second module film that is transparent, attached to a rear surface of the display panel, and includes a second edge portion attached and fixed to an outer side of the first edge portion, wherein the display panel and the backlight unit are integrally modularized by the cover bottom, the first module film, and the second module film.

[0016] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the disclosure as claimed. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. In the drawings:

[0018] Figure 1 is an exploded perspective view schematically illustrating a display device according to an embodiment of the present disclosure;

[0019] Figure 2 is a cross-sectional view schematically illustrating a modularized display device of Figure 1 ;

[0020] Figure 3 is a cross-sectional view schematically illustrating a configuration of an optical unit and a module film according to an embodiment of the present disclosure;

[0021] Figures 4A-4F is a cross-sectional view illustrating a process sequence for a modularized display device according to an embodiment of the present disclosure;

[0022] Figures 5A-5C is a photograph of experimental results of measuring an optical gap of a display device according to an embodiment of the present disclosure;

[0023] Figure 6A is a photograph of FOS evaluation measured before a high-temperature reliability test of a display device according to an embodiment of the present disclosure; and

[0024] Figure 6B is a photograph of FOS evaluation measured after a high-temperature reliability test of a display device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0025] Herein, embodiments according to the present disclosure are described with reference to the accompanying drawings.

[0026] Figure 1 is an exploded perspective view schematically illustrating a display device according to an embodiment of the present disclosure.

[0027] As shown in Figure 1 , a display device 100 according to an embodiment of the present disclosure can include a display panel 110, a backlight unit 140 and a cover bottom 150, and a module film (211 and 221 of Figure 2 ) for modularizing the display panel 110 and the backlight unit 140.

[0028] At this time, when directions in the drawings are defined for convenience of explanation, on the premise that a display surface of the display panel 110 faces forward, the backlight unit 140 is disposed behind the display panel 110, and the cover bottom 150 is located on a rear surface of the backlight unit 140, and the display panel 110, the backlight unit 140 and the cover bottom 150 are modularized.

[0029] This is described in more detail below.

[0030] The display panel 110 can be a liquid crystal display panel, a plasma display panel, a field emission display panel, an electroluminescence display panel, and an organic light emitting diode display panel.

[0031] Hereinafter, a liquid crystal display panel will be described as an example for convenience of explanation, which displays an image by controlling an electric field applied to a liquid crystal layer of the display panel 110 and changing an arrangement of liquid crystal molecules to transmit light emitted from the back light unit 140 to the display panel 110.

[0032] The display panel 110 is a component that plays a key role in image expression, and can include a first substrate 112 and a second substrate 114 combined with each other to face each other, with a liquid crystal layer interposed between the first substrate 112 and the second substrate 114.

[0033] At this time, on the premise of an active matrix type, although not clearly shown in the drawing, a plurality of gate lines and data lines can cross each other on an inner surface of the first substrate 112, commonly referred to as a lower substrate or an array substrate, to define a plurality of pixels, and a thin film transistor (TFT) can be provided at each of the crossing portions and can be connected to a transparent pixel electrode formed in each of the pixels.

[0034] On an inner surface of the second substrate 114, referred to as an upper substrate or a color filter substrate, a red (R), green (G), and blue (B) color filter and a black matrix surrounding each of the red (R), green (G), and blue (B) color filters and covering a non-display element such as a gate line, a data line, a TFT, etc. can be provided. In addition, a transparent common electrode covering the color filter and the black matrix can be provided.

[0035] In addition, although not clearly shown in the drawing, an upper alignment layer and a lower alignment layer that determine an initial arrangement direction of liquid crystal molecules can be interposed between the two substrates 112 and 114 and the liquid crystal layer. A seal pattern can be formed along edges of the two substrates 112 and 114 to prevent the liquid crystal layer filled between the two substrates 112 and 114 from leaking.

[0036] In this case, an upper polarizing plate 119b and a lower polarizing plate 119a( Figure 2 ) can be attached to outer surfaces of the first substrate 112 and the second substrate 114, respectively.

[0037] In addition, a side sealant (not shown) Figure 3 having elasticity and for absorbing external impact can be provided at sides of the display panel 110 other than the sides including a pad portion to which a printed circuit board 117 including a driving circuit is connected.

[0038] The side sealant (not shown) Figure 3The side sealant (115) can be used to protect the side surface of the display panel 110, and the side sealant (115) can be used to prevent damage to the display panel 110 caused by external impact. Figure 3 The side sealant (115) can be used to prevent damage to the display panel 110 caused by external impact.

[0039] In addition, the side sealant (115) can also be used to prevent light leakage of the display panel 110. Figure 3

[0040] The printed circuit board 117 can be connected to the side surface of the display panel 110, which does not have the side sealant (115), via a connection member 116 such as a flexible printed circuit board. Figure 3

[0041] During the modular process, the printed circuit board 117 can be bent and closely adhered to the rear surface of the cover bottom 150 by using the bending characteristics of the connection member 116.

[0042] Therefore, in the display panel 110, when the on / off signal of the thin film transistor that is selected for each gate line is turned on by scanning and transmitting to the gate line, the image signal of the data line is transmitted to the corresponding pixel electrode, and by the electric field generated between the pixel electrode and the common electrode thereby, the arrangement direction of the liquid crystal molecules is changed, thereby generating a difference in transmittance.

[0043] In addition, in order to express the difference in transmittance of the display panel 110 to the outside, the display device 100 according to the present disclosure can include a backlight unit 140 that provides light from the rear surface of the display panel 110.

[0044] The backlight unit 140 can include a light source unit 135, a reflection plate 134, and an optical unit 120 located on the rear surface of the display panel 110, and the optical unit 120 can be located on the light source unit 135 to be spaced apart from the light source unit 135 by a predetermined distance.

[0045] The light source unit 135 can include a plate-shaped PCB 131 disposed on the horizontal surface 151 of the cover bottom 150 and a plurality of light sources 133 mounted on the PCB 131 at a predetermined distance.

[0046] The light source 133 can be an LED or a micro LED (μLED). The LED or the micro LED can be manufactured by crystallizing an inorganic material such as GaN on a semiconductor wafer substrate such as sapphire or silicon (Si).

[0047] ​​The LED or micro LED can be crystallized through an epitaxial growth process. The epitaxial growth process can refer to growth by taking a specific orientation relationship on the surface of a specific crystal. To form a structure of the LED or micro LED, a GaN-based compound semiconductor can be stacked in the form of a pn junction diode on a substrate. At this time, each layer can be grown by inheriting the crystallinity of the lower layer.

[0048] In addition, the LED or micro LED can include an n-doped n-type semiconductor layer, one or more multi-quantum well (MQW) layers, and a p-doped p-type semiconductor layer.

[0049] The n-type semiconductor layer can be made of a semiconductor material such as GaN, AlGaN, InGaN, AlInGaN, or the like, and can include Si, Ge, Se, Te, C, or the like as an impurity. The p-type semiconductor layer can be made of a semiconductor material such as GaN, AlGaN, InGaN, AlInGaN, or the like, and can include Mg, Zn, Be, or the like as an impurity.

[0050] In addition, the multi-quantum well layer can have a multi-quantum well structure, for example, InGaN / GaN.

[0051] The multi-quantum well layer can emit light of any one of red, green, and blue, or can emit light of different colors. For example, when the multi-quantum well layer includes an InGaAlP material, red light can be emitted. When the multi-quantum well layer includes an InGaN material and the In content varies, green light or blue light can be emitted.

[0052] Here, the light source 133 according to the embodiment of the disclosure can be formed of a blue LED or a blue micro LED including a multi-quantum well layer emitting blue light with excellent light emission efficiency and brightness, to improve light emission efficiency and brightness.

[0053] In this case, the PCB 131 can be divided into a plurality of strip-shaped portions.

[0054] A light diffusion lens (not shown) can also be provided on each light source 133. The light diffusion lens located on each light source 133 can improve the directional angle of light emitted from the light source 133.

[0055] Here, the reflection plate 134 can have a plurality of through-holes 138 (through which the plurality of light sources 133 can pass) and can cover and shield the horizontal surface of the PCB 131 other than the plurality of light sources 133, and the horizontal surface 151 and the side surface 153 of the cover bottom 150.

[0056] Accordingly, by reflecting light toward the back of the plurality of light sources 133 to the optical unit 120, the brightness of the light is improved.

[0057] That is, the reflection plate 134 can be formed of a white or silver plate. The reflection plate 134 can include a plurality of through-holes 138, a reflection plane 137 covering a horizontal surface 151 of the cover bottom 150, and a reflection side surface 139 curved upward along an edge of the reflection plane 137 to cover an inner side of a side surface 153 of the cover bottom 150.

[0058] The optical unit 120 for uniformity of luminance can be located on the plurality of light sources 133 exposed through the through-holes 138 of the reflection plate 134. The optical unit 120 can include a luminance enhancement portion (129), and first and second optical portions (121a and 121b) and a diffusion portion (128), and can process light emitted from the light source unit 135 with high quality and provide the light to the display panel 110. Figure 3 Figure 3 Figure 3

[0059] The display panel 110 and the backlight unit 140 can be integrally modularized through the cover bottom 150 and the module film (211 and 221). Figure 2

[0060] Here, the cover bottom 150, on which the display panel 110 and the backlight unit 140 are disposed and which is a basis for assembling all components of the display device 100, can include a plate-shaped horizontal surface 151 and a side surface 153 perpendicularly curved at an edge of the horizontal surface 151.

[0061] At this time, the cover shield 160 can be further disposed on a back surface of the cover bottom 150 and function to protect a printed circuit board 117 disposed on the back surface of the cover bottom 150 and effectively dissipate heat generated from the printed circuit board 117.

[0062] In particular, in the display device 100 according to the embodiment of the disclosure, the cover shield 160 can include a bottom surface 161 facing a rear surface of the cover bottom 150, a side surface 163 perpendicularly curved from the bottom surface 161 to completely surround a surface of the display device 100, and a top surface 165 perpendicularly curved from the side surface 163 and surrounding a portion of an edge of a top surface of the display panel 110. Accordingly, the cover shield 160 can completely cover a side on which the printed circuit board 117 of the display device 100 is located.

[0063] Thus, in the display device 100 according to the embodiment of the disclosure, the cover shield 160 can function as an outer cover of a final application product.

[0064] In addition, the module film (211 and 221) can be disposed on the cover bottom 150 and the cover shield 160. Figure 2 ​​​​the 211 and 221) are divided into a first module film and a second module film located on the top surface and the rear surface of the optical unit 120 Figure 2 the 211 and 221). The first module film and the second module film Figure 2 the 211 and 221) can be attached and fixed to the display panel 110 and the cover bottom 150.

[0065] Accordingly, the present disclosure can provide a display device 100 having a light weight, a thin profile, and a narrow bezel while omitting a guide panel (not shown) made of aluminum (Al) and a glass diffusion plate (not shown) made of aluminum (Al), thereby reducing material costs, and also can omit processing for the modular guide panel (not shown) and the glass diffusion plate (not shown), thereby improving processing efficiency.

[0066] This will be described in greater detail below with reference to the accompanying drawings.

[0067] Figure 2 is a cross-sectional view schematically illustrating Figure 1 a modular display device of the related art, and Figure 3 is a cross-sectional view schematically illustrating a configuration of an optical unit and a module film according to an embodiment of the present disclosure.

[0068] As shown in Figure 2 , a light source unit 135 including a plate-shaped PCB 131 and a plurality of light sources 133 mounted on the PCB 131, a reflection plate 134 exposing only each light source 133 through a through-hole 138, and an optical unit 120 stacked on the light source unit 135 can form a backlight unit (140 in Figure 1 .

[0069] In addition, a display panel 110 including a first substrate 112 and a second substrate 114 and a liquid crystal layer (not shown) interposed therebetween can be located on the backlight unit (140 in Figure 1 .

[0070] Here, a side sealant 115 covering from a side surface of the first polarizing plate 119a to a side surface of the second polarizing plate 119b can be provided on a side surface of the display panel 110.

[0071] The side sealant 115 can have elasticity and absorb external impact to protect the side surface of the display panel 110, and also can prevent light leakage to the side surface of the display panel 110.

[0072] A pad portion (not shown) may be provided on one side of the display panel 110 where the side sealant 115 is not provided, and connected to the printed circuit board 117 via a connecting member 116. The printed circuit board 117 may be bent and tightly attached to the rear surface of the cover 150 by using the bending characteristics of the connecting member 116.

[0073] At this time, the cover shield 160 located on the back of the cover bottom 150 can protect the printed circuit board 117 disposed on the rear surface of the cover bottom 150 and effectively dissipate the heat generated from the printed circuit board 117.

[0074] The cover shield 160 can be secured with a screw 157 that penetrates the bottom surface 161 and is inserted into the rear surface of the cover bottom 150. For this purpose, an embossed hole 155 protruding toward the bottom surface 161 of the cover shield 160 can be formed at the horizontal surface 151 of the cover bottom 150.

[0075] Therefore, the screw 157 can penetrate the bottom surface 161 of the cover cover 160 and be inserted into the embossed hole 155 of the cover bottom 150, so that the cover cover 160 can be fastened to the cover bottom 150.

[0076] Here, in the display device 100 according to an embodiment of the present disclosure, the cover shield 160 may include a bottom surface 161 facing the rear surface of the cover bottom 150, a side surface 163 that is perpendicularly curved from the bottom surface 161 and completely surrounds the side surface of the display device 100, and a top surface 165 that is perpendicularly curved from the side surface 163 and surrounds a portion of the edge of the top surface of the display panel 110. Therefore, the cover shield 160 can completely cover the side of the display device 100 where the printed circuit board 117 is located.

[0077] Therefore, in the display device 100 according to the embodiments of the present disclosure, the cover shield 160 can be used as an outer cover for a display device such as a notebook computer, a mobile device and a TV.

[0078] In this case, by further positioning the housing 170 on the top surface 165 of the cover 160, a finished product of the display device 100 in a state that can be actually used by the user can be achieved.

[0079] Backlight unit ( Figure 1 The 140) and the display panel 110 can be modularized as a whole by means of the cover 150 and the module film 211 and module film 221.

[0080] More specifically, the light source unit 135 may be mounted on the horizontal surface 151 of the cover bottom 150, and the reflector 134 may be located on the light source unit 135 to expose only each light source 133 through the through hole 138.

[0081] Here, the reflector 134 may include a plurality of through holes 138. The reflector 134 may include a reflective plane 137 covering the horizontal surface 151 of the cover 150, and a reflective side surface 139 that curves upward along the edge of the reflective plane 137 to cover the inner side of the side surface 153 of the cover 150.

[0082] Additionally, the optical unit 120 may be located on the light source unit 135, spaced apart from the light source unit 135 by a predetermined interval. The optical unit 120 and the display panel 110 located thereon may be supported by the module film 211 and the module film 221.

[0083] Here, the module film 211 and module film 221 supporting the optical unit 120 and the display panel 110 can be divided into a first module film 211 and a second module film 221. In this case, the first module film 211 can be located on the back of the optical unit 120 to support the optical unit 120 and maintain the optical gap or air gap G between the light source unit 135 and the optical unit 120.

[0084] Additionally, the second module film 221 can be located on the back of the display panel 110 to support the display panel 110.

[0085] For more details, please refer to Figure 3 The optical unit 120 may include a first optical portion 121a and a second optical portion 121b, a diffusion portion 128, and a brightness enhancement portion 129. The first optical portion 121a and the second optical portion 121b, the diffusion portion 128, and the brightness enhancement portion 129 may be stacked sequentially on the light source unit 135.

[0086] Here, the first optical portion 121a and the second optical portion 121b can converge and diffuse light from the backlight unit ( Figure 1 The incident light from the light source 133 (140) is used to improve brightness and light uniformity.

[0087] The first optical portion 121a may include a first support layer 123a and a first lens layer 125a for converging light on the first support layer 123a. The second optical unit 121b located on the first optical portion 121a may include a second support layer 123b and a second lens layer 125b for converging light on the second support layer 123b.

[0088] In addition, the diffusion layer 126 may be located below the first support layer 123a.

[0089] Here, in more detail, the first support layer 123a of the first optical portion 121a and the second support layer 123b of the second optical portion 121b can be made of a polycarbonate-based, a polysulfone-based, a polyacrylate-based, a polystyrene-based, a polyvinyl chloride-based, a polyvinyl alcohol-based, a polynorbornene-based, or a polyester-based material capable of transmitting light.

[0090] In addition, the first lens layer 125a and the second lens layer 125b formed on the first support layer 123a and the second support layer 123b, respectively, can be made of a transparent acrylic resin. The first lens layer 125a can be configured such that a plurality of first prisms 127a can protrude in a row from the first support layer 123a, each of the first prisms 127a having a strip shape along a length direction and being adjacently arranged in the form of a repeated peak and valley, and the second lens layer 125b can be configured such that a plurality of second prisms 127b can protrude in a row from the second support layer 123b, each of the second prisms 127b having a strip shape along a length direction and being adjacently arranged in the form of a repeated peak and valley.

[0091] Since the first lens layer 125a is formed of the first prisms 127a and the second lens layer 125b is formed of the second prisms 127b, light is converged to the display panel 110 located above the optical unit 120, thereby achieving an effect of increasing brightness.

[0092] Meanwhile, the first lens layer 125a and the second lens layer 125b can be formed of prisms having a polygonal cross section, a microlens pattern, a lenticular lens, an embossing pattern, or a combination thereof.

[0093] In addition, in the drawings, the heights of the first prisms 127a are the same, and the heights of the second prisms 127b are the same. However, the heights of the first prisms 127a adjacent to each other can be different, and the heights of the second prisms 127b adjacent to each other can be different, and for example, the heights of the first prisms 127a and the second prisms 127b can be 10 μm to 40 μm, specifically 10 μm to 30 μm.

[0094] In addition, the pitches of the first prisms 127a can be different, and the pitches of the second prisms 127b can be different. For example, the pitch corresponding to the bottom surface of the first prisms 127a can be 10 μm to 60 μm, specifically 20 μm to 60 μm, and the pitch corresponding to the bottom surface of the second prisms 127b can be 10 μm to 60 μm, specifically 20 μm to 60 μm. In addition, the apex angle of the first prisms 127a and the second prisms 127b can be 80° to 100°, and within the above range, there can be an effect of improving brightness.

[0095] Here, in the drawing, the cross section of the first prism 127a of the first lens layer 125a and the second prism 127b of the second lens layer 125b is the same, and the length direction of the first lens layer 125a and the second lens layer 125b is the same. However, the first lens layer 125a and the second lens layer 125b arranged in a row along the length direction of the first optical portion 121a and the second optical portion 121b can have length directions perpendicular to each other, so that the brightness is improved while preventing the generation of pitch moire between the first lens layer 125a and the second lens layer 125b.

[0096] That is, when the first lens layer 125a is arranged in a row along the X-axis direction defined in the drawing, the second lens layer 125b is arranged in a row along the Y-axis direction defined in the drawing perpendicular to the X-axis direction. The first lens layer 125a and the second lens layer 125b are arranged so that their length directions are orthogonal to each other.

[0097] In addition, the diffusion layer 126 can be located on the back of the first support layer 123a of the first optical portion 121a. In other words, the diffusion layer 126 can be the lowermost end of the first optical portion 121a and the second optical portion 121b. Therefore, the diffusion layer can be used to further diffuse the light emitted from the plurality of light sources 133 of the backlight unit (140) so that the light is incident on the first optical portion 121a and the second optical portion 121b in a wide range. Figure 1

[0098] The diffusion layer 126 can include spherical beads 126b coated in a transparent resin binder 126a on the rear surface of the first support layer 123a of the first optical portion 121a, and have a spherical bead shape. The light diffusion function is achieved by the spherical beads 126b.

[0099] The binder 126a can be made of one selected from among an acrylic resin, a polyurethane, a polyester, a fluorine-based resin, a silicon-based resin, a polyamide, and an epoxy resin.

[0100] Here, the spherical beads 126b can use any one of an acrylic resin, an acrylic polymer, CaCo3 (calcium carbonate), BaSO4, silicon dioxide, calcium phosphate, TiO2, SiO2, CaCo3, SnO2, Mb2O5, ZnO2, MgF2, CeO2, Al2O3, HfO2, Na3LaF6, and LaF6, and preferably, can be made of TiO2 as a high diffusion material.

[0101] The binder 126a and the beads 126b can preferably be colorless and transparent, as light needs to pass therethrough.

[0102] ​Here, the average particle diameter of the beads 126b can be preferably 1 μm or more and 50 μm or less, and more preferably 2 μm or more and 20 μm or less. If the average particle diameter is less than the above range, a satisfactory light diffusion function cannot be exhibited, and if the average particle diameter is greater than the above range, it is difficult to coat the resin composition forming the diffusion layer 126.

[0103] The amount of the beads 126b mixed in the diffusion layer 126 can be preferably 10 parts by weight or more and 500 parts by weight or less, and more preferably 10 parts by weight or more and 300 parts by weight or less, based on 100 parts by weight of the binder 126a. If the amount of the mixed beads 126b is less than the above range, the light diffusion effect is not satisfactory, and if the amount of the mixed beads 126b is greater than the above range, it is difficult to coat the resin composition forming the diffusion layer 126.

[0104] The beads 126b can change the light efficiency of the diffusion layer 126 according to their shape. Spherical beads 126b can refract light incident from the outside twice inside and have a one-reflection effect.

[0105] In addition, beads 126b in the shape of a snowman or a closed curve in which two spheres are connected can have an effect of transmitting light incident from the outside on one side and diffusing light on the other side. Randomly shaped beads 126b can refract and reflect light incident from the outside at multiple angles inside and can also have a diffuse reflection effect.

[0106] In addition, the beads 126b can include another small bead of small size inside the beads 126b. Such beads 126b can refract and reflect light incident from the outside at multiple angles inside and can also have a diffuse reflection effect.

[0107] Accordingly, the diffusion layer 126 can refract and scatter the incident light to diffuse the light. Therefore, the display device 100 according to the embodiment of the disclosure does not need to include a separate diffusion plate by the configuration of the diffusion layer 126.

[0108] The diffusion portion 128 located on the first optical portion 121a and the second optical portion 121b can function to diffuse and guide light passing through the first optical portion 121a and the second optical portion 121b, and can function to provide the display panel 110 with a white surface light source that is uniformly processed.

[0109] The diffusion portion 128 can also be configured by including a light diffusion component such as a bead in a binder resin or by forming a fine pattern on the lower surface thereof without including a bead.

[0110] Accordingly, the diffusion portion 128 can refract and scatter the incident light to diffuse the light, and can diffuse and output the non-uniform light emitted from the first optical portion 121a and the second optical portion 121b as uniform light.

[0111] At this time, the diffusion portion 128 can have high transparency and thus excellent light transmittance and easy viscosity control. For example, the diffusion portion 128 can be made of an acryl-based, urethane-based, epoxy-based, vinyl-based, polyester-based, or polyamide-based resin. The beads in the diffusion portion 128 can prevent light from being partially converged by dispersing the light incident to the diffusion portion 128.

[0112] In addition, the diffusion portion 128 not including the beads can adjust a light scattering angle according to the shape of the fine pattern formed on the lower surface thereof. The fine pattern can be configured in various shapes such as an elliptical pattern, a polygonal pattern, etc., and by using a holographic pattern to refract light incident by an interference pattern in an asymmetric direction, the converged light can be diffused at a more inclined angle.

[0113] The brightness enhancement portion 129 located on the diffusion portion 128 can be formed of a reflective polarizing film such as an advanced polarizing collimator film (APCF) or a dual brightness enhancement film (DBEF). The brightness enhancement portion 129 can be used to enhance the brightness of light provided to the display panel 110 and improve the light emission efficiency.

[0114] In other words, in the brightness enhancement portion 129, a high-refractive layer and a low-refractive layer can be stacked, and the light lost by reflection is reflected back to the upper surface again, thereby re-generating light to improve brightness.

[0115] Accordingly, the optical unit 120 according to the embodiment of the disclosure can include the first optical portion 121a and the second optical portion 121b, the diffusion portion 128, and the brightness enhancement portion 129, and can process the light emitted from the light source 133 of the backlight unit (140) into high-brightness surface light and provide the light to the display panel 110. Figure 1

[0116] In this case, a dichroic layer (not shown) and a color conversion layer (not shown) can also be included under the first optical portion 121a. The dichroic layer and the color conversion layer can be used to process the light emitted from the light source 133 into white light having improved color purity.

[0117] In other words, the backlight unit (140) according to the embodiment of the disclosure can include the first optical portion 121a and the second optical portion 121b, the diffusion portion 128, and the brightness enhancement portion 129, and can process the light emitted from the light source 133 into high-brightness surface light and provide the light to the display panel 110. Figure 1 ​When blue light is emitted from the light source 133, only the clearer blue light can be incident on the color conversion layer as the blue light emitted from the light source 133 simultaneously passes through the dichroic layer, and the blue light incident on the color conversion layer can be converted into white light having improved color purity as the blue light passes through the color conversion layer.

[0118] At this time, a light diffusion adhesive (not shown) can be located between the first optical portion 121a and the second optical portion 121b, more precisely, between the first prism 127a of the first lens layer 125a and the second support layer 123b, or the first prism 127a can have an adhesive property. Accordingly, the first optical portion 121a and the second optical portion 121b can be attached and fixed to each other, and also can protect the top corner of the first prism 127a of the first optical portion 121a.

[0119] In addition, the light diffusion adhesive (not shown) can also be located between the second optical portion 121b and the diffusion portion 128, and between the diffusion portion 128 and the brightness enhancement portion 129. Accordingly, the first optical portion 121a and the second optical portion 121b, the diffusion portion 128, and the brightness enhancement portion 129 can form a composite optical sheet in a state in which they are integrally combined together.

[0120] The rear surface of the optical unit 120 according to the embodiment of the disclosure can be supported by the first module film 211, and the rear surface of the display panel 110 can be supported by the second module film 221.

[0121] Here, the display panel 110 can be attached and fixed to the top surface of the second module film 221 through the first optical adhesive layer 230a.

[0122] Here, the first module film 211 and the second module film 221 can be made of synthetic resin, such as polymethyl methacrylate (PMMA) or polyethylene terephthalate (PET) of thermoplastic resin. Since the first module film 211 and the second module film 221 are located on the rear surface of the optical unit 120 and the rear surface of the display panel 110, respectively, the first module film 211 and the second module film 221 can transmit light so that the light emitted from the light source 133 is transmitted to the optical unit 120, and the light transmitted through the optical unit 120 is incident on the display panel 110.

[0123] In particular, in order to prevent a decrease in brightness, it is preferable that the light transmittance be very high. By making the first module film 211 and the second module film 221 have a refractive index similar to that of the optical unit 120 and the display panel 110, it is preferable that light not be refracted between the first module film 211 and the second module film 221 and the optical unit 120, and between the second module film 221 and the display panel 110.

[0124] At this time, the first module film 211 can have a larger area than the optical unit 120, and the second module film 221 can have a larger area than the display panel 110. Accordingly, the first edge portion 213 of the first module film 211 can be exposed along the edge of the optical unit 120, and the second edge portion 223 of the second module film 221 can be exposed along the edge of the display panel 110.

[0125] Here, the first edge portion 213 of the first module film 211 supporting the rear surface of the optical unit 120 can be attached and fixed to the outside of the side surface 153 of the cover bottom 150 through the second optical adhesive layer 230b. The second edge portion 223 of the second module film 221 attached to the rear surface of the display panel 110 and supporting the display panel 110 can be attached and fixed to the outside of the first edge portion 213.

[0126] Accordingly, both the first module film 211 supporting the rear surface of the optical unit 120 and the second module film 221 supporting the rear surface of the display panel 110 can be attached and fixed to the side surface 153 of the cover bottom 150 so that the display panel 110 and the backlight unit (140) of the display device 100 can be integrated with each other. Figure 1

[0127] That is, in the display device 100 according to the embodiment of the disclosure, by attaching and fixing the first edge portion 213 of the first module film 211 located on the rear surface of the optical unit 120 to the side surface 153 of the cover bottom 150, the optical unit 120 can be supported on the back thereof by the cover bottom 150 and modularized with the cover bottom 150, and by attaching and fixing the second module film 221 attached and fixed to the display panel 110 to the first edge portion 213 of the first module film 211 through the second edge portion 223, the display panel 110 can also be modularized with the cover bottom 150.

[0128] Accordingly, the display panel 110 and the backlight unit (140) of the display device 100 can be integrally modularized with each other by the cover bottom 150 and the module films 211 and 221. Figure 1

[0129] Here, it is preferable that the first module film 211 is used only to support the rear surface of the optical unit 120 so that the first module film 211 and the rear surface of the optical unit 120 are not attached and fixed to each other. Even though the first module film 211 is not attached and fixed to the optical unit 120, the optical unit 120 is inserted between the first module film attached and fixed to the cover bottom 150 and the second module film located on the optical unit 120 so that the position of the optical unit 120 is fixed.

[0130] ​​In addition, when the first module film 211 supports the rear surface of the optical unit 120, the optical unit 120 and the light source unit 135 can maintain an optical gap or an air gap G.

[0131] That is, the first module film 211 can be used to modularize the optical unit 120 and the cover 150, and to maintain the optical gap or air gap G between the light source unit 135 and the optical unit 120.

[0132] Here, the backlight unit ( Figure 1 The 140 needs to be formed with an optical gap or air gap (hereinafter referred to as optical gap) G having a predetermined interval between the light source unit 135 and the optical unit 120. Since the optical gap G is a color mixing space for light emitted from the multiple light sources 133 of the light source unit 135, the optical gap G can be used to allow light emitted from the multiple light sources 133 to be uniformly mixed and incident on the optical unit 120, or to prevent thermal expansion of the optical unit 120 caused by the high temperature heat generated by the multiple light sources 133.

[0133] Therefore, in the display device 100 according to the embodiments of the present disclosure, the first module film 211 is located on the rear surface of the optical unit 120 to support the rear surface of the optical unit 120 and modularize the optical unit 120 with the cover 150, and thus the optical gap G can also be formed between the light source unit 135 and the optical unit 120.

[0134] Therefore, the uniformly mixed light passes through the optical unit 120 and is processed into a high-quality surface light source for incident on the display panel 110.

[0135] Preferably, the first module film 211 has a thickness of 100 μm to 130 μm, thereby exhibiting high resistance to bending. Thus, the first module film 211 will not deform due to external forces and can support the optical unit 120.

[0136] Increasing the thickness of the first module film 211 can increase its resistance to external forces, but may reduce the transmittance of light incident from the light source unit 135. Therefore, the first module film 211 has a thickness of 100 μm to 130 μm.

[0137] In particular, as the thickness of the first module film 211 increases, it may be difficult to achieve the backlight unit required recently. Figure 1 (140) thinning.

[0138] That is, by making the first module film 211 have a thickness of more than 100 μm, the backlight unit ( Figure 1The first module film 211 can be manufactured as thin as possible within the limit of preventing deterioration of mechanical properties of the first module film 211 and satisfying high light transmittance. By having the first module film 211 with a thickness of 250 µm or less, the backlight unit 140 can be thinned and the mechanical properties of the first module film 211 can be maximally prevented from deteriorating and high light transmittance can be satisfied. Figure 1

[0139] At this time, the second module film 221 located on the optical unit 120 can be attached and fixed to the rear surface of the display panel 110 through the first optical adhesive layer 230a, and thus does not need a separate mechanical property. Accordingly, the thickness of the second module film 221 can be freely adjusted within the limit of satisfying high light transmittance.

[0140] Accordingly, the second module film 221 can have a thickness thinner than that of the first module film 211, and can have a thickness of 50 µm to 70 µm.

[0141] In particular, in the display device 100 according to the embodiment of the disclosure, by preventing the first module film 211 from being attached and fixed to the rear surface of the optical unit 120, a warping phenomenon of the optical unit 120 can be prevented from occurring.

[0142] That is, if the optical unit 120 is fixed by an adhesive force, in a process of thermal expansion and thermal contraction of the optical unit 120 due to heat generated when the display device 100 is driven, a warping phenomenon in which the optical unit 120 is wrinkled can occur.

[0143] This causes a problem of deterioration of quality of the display device 100, such as a spot in an image of the display panel 110.

[0144] Accordingly, in the display device 100 according to the embodiment of the disclosure, the first module film 211 can be used only to support the rear surface of the optical unit 120, such that the first module film 211 and the optical unit 120 are not attached and fixed to each other, thereby preventing a warping phenomenon of the optical unit 120.

[0145] In addition, the second module film 221 can also be attached and fixed to the rear surface of the display panel 110 without being attached and fixed to the optical unit 120, thereby preventing a warping phenomenon of the optical unit 120.

[0146] ​Here, by forming the first optical adhesive layer 230a of a transparent adhesive material such as an OCR, an OCA, or a resin, it is preferable that all high-quality surface light incident through the optical unit 120 is incident on the display panel 110. The second optical adhesive layer 230b and the third optical adhesive layer 230c can be freely used within the limit of attaching the first edge portion 213 of the first module film 211 and the second edge portion 223 of the second module film 221 to each other or attaching and fixing the first edge portion 213 to the outside of the side surface 153 of the cover bottom 150.

[0147] As described above, in the display device 100 according to the embodiment of the disclosure, the display panel 110 and the backlight unit 140 of the optical unit 120 are modularized as a whole by the cover bottom 150 and the first module film 211 and the second module film 221. Figure 1

[0148] In other words, in order to achieve a narrow bezel, even when the case top is removed, a guide panel (not shown) made of a metal material, i.e., aluminum (Al), is a necessary component in order to stably support the display panel 110. However, in the display device 100 according to the embodiment of the disclosure, the display panel 110 and the optical unit 120 are modularized with the cover bottom 150 by the first module film 211 and the second module film 221. Therefore, even in the case where there is no guide panel (not shown) made of aluminum (Al), the display panel 110 and the backlight unit 140 of the optical unit 120 can be stably modularized to have a light weight, a thin profile, and a narrow bezel. Figure 1

[0149] Therefore, it is possible to omit the guide panel made of aluminum (Al), thereby reducing material costs, and in addition, it is possible to omit the process for assembling and fastening the guide panel, thereby improving the efficiency of the process.

[0150] In detail, the display device 100 according to the embodiment of the disclosure includes a diffusion layer 126 including beads 126b made of TiO2, which is a high diffusion material, at the lowermost end of the optical unit 120, thereby providing a separate diffusion plate. In addition, by allowing the rear surface of the optical unit 120 to be supported by the first module film 211, even without a separate glass diffusion plate (not shown), it is possible to prevent sagging of the optical unit 120.

[0151] Therefore, it is also possible to omit the glass diffusion plate, and thus it is possible to further reduce material costs. In addition, it is possible to omit additional equipment and processes for aligning and fixing the glass diffusion plate, and thus it is possible to further improve the efficiency of the process.

[0152] ​​At this time, the side surface 153 of the cover bottom 150 can be exposed to the outside of the first edge portion 213 of the first module film 211 and the second edge portion 223 of the second module film 221, or light emitted from the backlight unit 140 can leak to the outside of the first edge portion 213 and the second edge portion 223. Accordingly, the design band 180 having a black characteristic can be attached to the outside of the second edge portion 223 of the second module film 221 located at the outermost side of the display device 100. Figure 1

[0153] Alternatively, at least one of the first edge portion 213 of the first module film 211 and the second edge portion 223 of the second module film 221 can be formed to have a black characteristic.

[0154] Figures 4A-4F is a cross-sectional view illustrating a process sequence for a modular display device according to an embodiment of the disclosure.

[0155] As shown in Figure 4A , a light source unit 135 including a plate-shaped PCB 131 and a plurality of light sources 133 mounted on the PCB 131 at a predetermined interval can be placed on the horizontal surface 151 of the cover bottom 150. A reflection plate 134 can be placed on the light source unit 135 such that the plurality of light sources 133 are respectively exposed through the through holes 138.

[0156] A second optical adhesive layer 230b is applied to the outside of the side surface 153 of the cover bottom 150.

[0157] Next, as shown in Figure 4B , after the first module film 211 is vacuum-bonded on the vacuum plate 310, then as shown in Figure 4C , the cover bottom 150 on which the reflection plate 134 and the light source unit 135 are disposed can be positioned on the first module film 211 vacuum-bonded on the vacuum plate 310.

[0158] At this time, a portion of the vacuum plate 310 can be released from the vacuum, and then the first edge portion 213 of the first module film 211 can be bent and attached and fixed to the second optical adhesive layer 230b coated on the side surface 153 of the cover bottom 150.

[0159] Next, as shown in Figure 4D , a first optical adhesive layer 230a can be coated on the lower surface of the display panel 110, more precisely, on the outside of the first polarizing plate 119a located on the outside of the first substrate 112. Then, the second module film 221 can be laminated to the outside of the first polarizing plate 119a through the first optical adhesive layer 230a using a press roller 320.

[0160] ​At this time, the second module film 221 can have a larger area than the display panel 110, and as shown in Figure 4E the second edge portion 223 of the second module film 221 can be exposed to the outside of the display panel 110.

[0161] Next, as shown in Figure 4F after the first module film 211 and the cover bottom 150 are separated from the vacuum plate 310, the optical unit 120 can be positioned on the first module film 211. At this time, the third optical adhesive layer 230c can be coated on the outside of the first edge portion 213 of the first module film 211.

[0162] Finally, as shown in Figure 4F the laminated display panel 110 and the second module film 221 can be placed on the optical unit 120. At this time, in order to place the second module film 221 on the optical unit 120, the display panel 110 and the second module film 221 can be positioned on the optical unit 120.

[0163] Thereafter, by attaching and fixing the second edge portion 223 of the second module film 221 to the third optical adhesive layer 230c, the modularization process of the display device 100 according to the embodiment of the disclosure can be completed.

[0164] Therefore, in the display device 100 according to the embodiment of the disclosure, the first edge portion 213 of the first module film 211 located on the rear surface of the optical unit 120 is attached and fixed to the side surface 153 of the cover bottom 150, and thus the optical unit 120 is supported on its rear surface by the first module film 211 and is modularized with the cover bottom 150. In addition, the second module film 221 attached and fixed to the rear surface of the display panel 110 is attached and fixed to the first edge portion 213 of the first module film 211 through the second edge portion 223, and thus the display panel 110 is also modularized with the cover bottom 150.

[0165] Therefore, the display panel 110 and the backlight unit (140) of the display device 100 according to the embodiment of the disclosure are integrally modularized with each other by the cover bottom 150 and the first module film 211 and the second module film 221. Figure 1

[0166] Figures 5A-5C is a photo of experimental results of measuring the optical gap of the display device according to the embodiment of the disclosure. Figure 6A is a photo of FOS evaluation measured before the high-temperature reliability test of the display device according to the embodiment of the disclosure, Figure 6B is a photo of FOS evaluation measured after the high-temperature reliability test of the display device according to the embodiment of the disclosure.

[0167] First,​Figure 5A The photograph shows the optical gap of the display device 100 according to the present disclosure measured at room temperature before the high-temperature reliability test, and it can be seen that the optical gap G is kept constant.

[0168] Therefore, in the display device according to the embodiments of the present disclosure ( Figure 2 In the 100), it can be seen that even when the optical unit ( Figure 4F The rear surface of (120) is made of the first module membrane ( Figure 4F 211) supports and displays the panel ( Figure 4F The rear surface of (110) is made of the second module membrane ( Figure 4F 221) support and then the first module membrane and the second module membrane ( Figure 4F 211 and 221) are attached and secured to the bottom of the cover ( Figure 4F When 150), the first module membrane and the second module membrane ( Figure 4F Neither 211 nor 221 droops.

[0169] When the display device according to the embodiments of this disclosure ( Figure 2 The high-temperature reliability test of 100% of the optical gap (G) was performed in a high-temperature environment of 60℃ for a certain period of time, and it can be seen that the optical gap G is as follows: Figure 5B The decrease is shown. It can be seen that, as... Figure 5C As shown, after a predetermined time of approximately 1 hour, the optical gap G once again remains constant.

[0170] That is, as in the embodiments of this disclosure, when passing through the first module membrane ( Figure 4F 211) Support optical unit ( Figure 4F The rear surface of (120) and through the second module membrane ( Figure 4F 221) Support display panel ( Figure 4F When 110) is present, the first module membrane and the second module membrane will not occur at room temperature. Figure 4F The sag of 211 and 221) and when performing high-temperature reliability testing, the first module membrane and the second module membrane ( Figure 4F Some sagging occurred in sections 211 and 221. However, after a predetermined period of time, the sagging returned to normal.

[0171] Therefore, it can be seen that even without a separate guide panel (not shown) or glass diffuser (not shown) made of aluminum (Al), the display panel ( Figure 4F 110 in the middle) and backlight unit ( Figure 4F It can also be modularized stably to have a lightweight, thin profile and narrow bezel.

[0172] Figure 6AThis is a photograph of the FOS assessment of lattice inhomogeneity before performing high-temperature reliability testing, and the FOS assessment indicator display device ( Figure 2 The screen front view (FOS) state at 100%. It can be seen that... Figure 6A FOS assessment and implementation Figure 6B There were almost no significant differences in the FOS assessment of lattice inhomogeneity after the high-temperature reliability test.

[0173] As described above, in the display device according to the embodiments of this disclosure ( Figure 2 In the 100), the display panel ( Figure 4F 110) and backlight unit ( Figure 1 140) through the bottom cover ( Figure 4F 150) and the first module membrane and the second module membrane ( Figure 4F The 211 and 221 are modular as a whole. Therefore, a lightweight, thin profile and narrow bezel can be achieved even without a guide panel made of aluminum (Al).

[0174] Therefore, the guide panel made of aluminum (Al) can be omitted, thereby reducing material costs. In addition, the processing for assembling and fastening the guide panel can be omitted, thereby improving processing efficiency.

[0175] Specifically, the display device according to the embodiments of this disclosure ( Figure 2 100) in optical unit ( Figure 4F The lowest part of (120) includes a diffusion layer ( Figure 3 126), thereby providing a separate diffusion plate, the diffusion layer comprising beads made of TiO2 as a highly diffusive material ( Figure 3 (126b). Furthermore, by allowing passage through the first module membrane ( Figure 4F 211) Support optical unit ( Figure 4F The rear surface of the 120 (of which), even without a separate glass diffuser, can prevent the optical unit ( Figure 4F The drooping of 120).

[0176] Therefore, the glass diffuser plate can be omitted, thereby further reducing material costs. Furthermore, the additional equipment and processes used for aligning and fixing the glass diffuser plate can be eliminated, thus further improving processing efficiency.

[0177] In the above description, the bottom cover ( Figure 4F Figure 4F The 150) can be referred to as the bottom cover or the lower cover.

[0178] It will be apparent to those skilled in the art that various modifications and variations can be made to the disclosed disclosure without departing from the spirit or scope of the disclosure. Thus, it is intended that the disclosure cover the modifications and variations of the disclosure provided they come within the scope of the appended claims and their equivalents.

Claims

1. A display device, comprising: A light source unit, which includes multiple light sources; The bottom cover includes a horizontal surface and a side surface, wherein the plurality of light sources are disposed on the horizontal surface, and the side surface is curved along the edge of the horizontal surface; Optical units on the light source unit; The display panel on the optical unit; The first module film is transparent, supports the entire rear surface of the optical unit, and includes a first edge portion that is attached and fixed to the outer side surface of the cover bottom; as well as The second module film, which is transparent, is attached to the entire rear surface of the display panel and includes a second edge portion attached and fixed to the outside of the first edge portion.

2. The display device according to claim 1, wherein, The first module membrane and the second module membrane are not adhesive. The first optical adhesive layer is transparent and is inserted between the second module film and the rear surface of the display panel. The second optical adhesive layer is inserted between the first edge portion and the side surface of the cover bottom, and The third optical adhesive layer is inserted between the first edge portion and the second edge portion.

3. The display device according to claim 1, wherein, The optical unit is inserted between the first module film and the second module film and has a fixed position.

4. The display device according to claim 1, wherein, The thickness of the first module film is 100 μm to 130 μm, and the thickness of the second module film is thinner than that of the first module film.

5. The display device according to claim 1, wherein, At least one of the first edge portion and the second edge portion has a black characteristic.

6. The display device according to claim 1, wherein, A design strip with black accents is attached to the outer side of the second edge portion.

7. The display device according to claim 1, wherein, The optical unit includes a diffusion layer located at the bottom of the optical unit and comprising beads made of a highly diffusive material.

8. The display device according to claim 7, wherein, The optical unit includes a first optical part and a second optical part, a diffusion part and a brightness enhancement part, wherein the first optical part and the second optical part each include a lens layer.

9. The display device according to claim 8, wherein, The diffusion layer comprises an adhesive resin coated on the rear surface of the support layer of the first optical portion and containing the beads.

10. The display device according to claim 1, further comprising a side sealant on the side surface of the display panel.

11. The display device according to claim 10, wherein, The printed circuit board is connected via a connecting member to one side of the display panel that is not covered with the side sealant, and The printed circuit board is bent and tightly adhered to the rear surface of the cover.

12. The display device of claim 11, further comprising a cover shielding member protecting the printed circuit board and located on the rear surface of the cover bottom. in, The cover shield includes: a bottom surface facing the rear surface of the cover bottom, a side surface that bends vertically from the bottom surface to cover the side surface of the cover bottom and the side surface of the display panel, and a top surface that bends vertically from the side surface of the cover shield and surrounds a portion of the edge of the top surface of the display panel.

13. The display device of claim 12, further comprising a housing designed on the top surface of the cover shield.

14. A display device, comprising: Display panel; A backlight unit, which is disposed on the rear surface of the display panel and includes: The light source unit includes multiple light sources. A reflector, disposed on the light source unit, includes multiple through holes that expose only the plurality of light sources, and An optical unit is disposed on the reflector; The bottom cover includes a horizontal surface and a side surface, wherein the plurality of light sources are disposed on the horizontal surface, and the side surface is curved along the edge of the horizontal surface; A first module film, which is transparent, supports the entire rear surface of the optical unit and includes a first edge portion attached and fixed to the outer side surface of the cover bottom; and The second module film, which is transparent, is attached to the entire rear surface of the display panel and includes a second edge portion attached and fixed to the outer side of the first edge portion. The display panel and the backlight unit are modularly integrated through the cover, the first module film and the second module film.

15. The display device according to claim 14, wherein, The optical unit is inserted between the first module film and the second module film and has a fixed position.

Images