Display device

Abstract

The invention discloses a display device. The display device comprises a display module for displaying a picture and a visual angle control module which is adjacently arranged on the display module, the visual angle control module comprises a first substrate, a second substrate arranged opposite to the first substrate, a visual angle control medium arranged between the first substrate and the second substrate, and a touch layer arranged between the visual angle control medium and the first substrate. The touch layer comprises a bridging electrode and a first touch electrode which are arranged on the first substrate, and an insulating layer arranged between the bridging electrode and the first touch electrode. The insulating layer is provided with an opening, and the first touch electrode is electrically connected with the bridging electrode through the opening.

Description

Technical Field

[0001] The present invention relates to a display device, and in particular to a display device comprising a viewing angle control module. Background Art

[0002] With the development of digital technology, display devices have been widely used in all aspects of daily life. Further thinning of display devices has always been the goal pursued by the industry. In the prior art, transparent polyimide (Colorless Polyimide; CPI) film is used to provide a display device with a smaller thickness. However, CPI film is easily damaged during the TOD (Touch on Display) manufacturing process. Summary of the invention

[0003] According to some embodiments of the present invention, a display device is provided, which includes a display module for displaying an image and a viewing angle control module disposed adjacent to the display module. The viewing angle control module includes a first substrate, a second substrate disposed opposite to the first substrate, a viewing angle control medium disposed between the first substrate and the second substrate, and a touch layer disposed between the viewing angle control medium and the first substrate. The touch layer includes a bridging electrode and a first touch electrode disposed on the first substrate, and an insulating layer disposed between the bridging electrode and the first touch electrode. The insulating layer has an opening, and the first touch electrode is electrically connected to the bridging electrode through the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0004] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein:

[0005] Figure 1 is a schematic diagram of a display device according to an embodiment of the present invention;

[0006] Figure 2 is a top view schematic diagram of a viewing angle control module according to an embodiment of the present invention;

[0007] Figure 3 yes Figure 2 A cross-sectional schematic diagram of the viewing angle control module taken along line II';

[0008] Figure 4 is a schematic diagram of the configuration of touch electrodes according to an embodiment of the present invention;

[0009] Figure 5 is an exploded schematic diagram of a viewing angle control module according to an embodiment of the present invention;

[0010] Figure 6 is a schematic diagram of the configuration of a viewing angle control module and a flexible circuit board according to an embodiment of the present invention;

[0011] Figure 7 is a schematic diagram of the configuration of a viewing angle control module and a flexible circuit board according to another embodiment of the present invention;

[0012] Figure 8 is a schematic diagram of the configuration of a viewing angle control module and an integrated circuit according to an embodiment of the present invention;

[0013] Fig. 9 is a schematic diagram of the configuration of a viewing angle control module, an integrated circuit, and a flexible circuit board according to an embodiment of the present invention;

[0014] as well as

[0015] Fig.10 It is a schematic diagram of an exploded view control module according to another embodiment of the present invention.

[0016] Explanation of symbols

[0017] 1: Display device

[0018] 10: Display module

[0019] 30: Viewing angle control module

[0020] 301, 301': first substrate

[0021] 301S: First Edge

[0022] 3011: first conductive layer

[0023] 3013: First insulation layer

[0024] 302: Middle insulation layer

[0025] 303, 303': second substrate

[0026] 303S: Second Edge

[0027] 3031: Second conductive layer

[0028] 3033: Second insulation layer

[0029] 304:Metal wire

[0030] 305: Viewing angle control medium

[0031] 3051:LCD

[0032] 306:Signal line

[0033] 307: Touch layer

[0034] 3070: Touch electrode

[0035] 3071:Bridge electrode

[0036] 3072: first touch electrode

[0037] 3072A: First touch unit

[0038] 3073:Insulation layer

[0039] 3074: second touch electrode

[0040] 3074A: Second touch unit

[0041] 309: Frame glue

[0042] 311: Conductive adhesive

[0043] 313: Auxiliary frame glue

[0044] 301'A: First main part

[0045] 301'B: First extension part

[0046] 301'C: First connection part

[0047] 303'A: Second main part

[0048] 303'B: Second extension part

[0049] 303'C: Second connection part

[0050] 301'A1,303'A1: Side

[0051] 50,51,52: Flexible circuit boards

[0052] 70: Integrated Circuits

[0053] α,β: Angle

[0054] AA: Active Area

[0055] NA: Non-active area

[0056] T1: Thickness

[0057] M: Conductive particles

[0058] W: Conductive adhesive width

[0059] D1: Distance

[0060] S1: First touch signal pad

[0061] S3: Second touch signal pad

[0062] S2: Control signal pad

[0063] O,H: Open DETAILED DESCRIPTION

[0064] The following is a detailed description of the electronic device of an embodiment of the present invention. It should be understood that the following description provides many different embodiments or examples for implementing different modes of some embodiments of the present invention. The specific elements and arrangements described below are only for simple and clear description of some embodiments of the present invention. Of course, these are only for example and not for limitation of the present invention. In addition, repeated numbers or marks may be used in different embodiments. These repetitions are only for simple and clear description of some embodiments of the present invention, and do not represent any relevance between the different embodiments and / or structures discussed.

[0065] Here, the terms "about", "approximately", and "substantially" generally mean within 10%, within 5%, within 3%, within 2%, within 1%, or within 0.5% of a given value or range. Here, the term "a to b" means greater than or equal to a and less than or equal to b.

[0066] It is understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms, and these terms are only used to distinguish different elements, components, regions, layers, and / or parts. Therefore, a first element, component, region, layer, and / or part discussed below may be referred to as a second element, component, region, layer, and / or part without departing from the teachings of some embodiments of the present invention.

[0067] In some embodiments of the present invention, relative terms such as "lower", "upper", "horizontal", "vertical", "below", "above", "top", "bottom", etc. should be understood as the orientations shown in the paragraph and the related drawings. Such relative terms are only for the convenience of explanation and do not mean that the device described therein must be manufactured or operated in a specific orientation. It is understood that if the device in the drawings is turned upside down, the components described on the "lower" side will become components on the "upper" side. The embodiments of the present invention can be used in conjunction with the attached drawings. Figure 1 It is also understood that the drawings of the present invention are also considered as part of the specification. It should be understood that the drawings of the present invention are not drawn according to scale, and in fact, the size of the elements may be arbitrarily enlarged or reduced to clearly show the features of the present invention.

[0068] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings as those commonly understood by those skilled in the art to which this disclosure belongs. It is understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the background or context of the relevant technology and the present invention, and should not be interpreted in an idealized or overly formal manner unless specifically defined in the embodiments of the present invention.

[0069] Certain words are used in the specification and claims of the present invention to refer to specific components. It should be understood by those skilled in the art that electronic equipment manufacturers may refer to the same components by different names. This document does not intend to distinguish between components that have the same function but different names. In the following specification and claims, the words "including" and "comprising" are open-ended words and should be interpreted as "including but not limited to..."

[0070] The electronic device of the present invention may include a packaging device, a semiconductor device display device, a backlight device, an antenna device, a sensing device or a splicing device, but is not limited thereto. The electronic device may be a bendable or flexible electronic device. The display device may be a non-self-luminous display device or a self-luminous display device. The antenna device may be a liquid crystal type antenna device or a non-liquid crystal type antenna device, and the sensing device may be a sensing device for sensing capacitance, light, heat or ultrasound, but is not limited thereto. The splicing device may be, for example, a display splicing device or an antenna splicing device, but is not limited thereto. It should be noted that the electronic device may be any combination of the foregoing, but is not limited thereto.

[0071] In some embodiments of the present invention, the phrase "element A surrounds element B" means that in a cross-sectional schematic diagram or a top view, at least part of element B is disposed within element A, i.e., at least part of element B is closer to the center of the device than element A. In some embodiments of the present invention, the phrase "element A overlaps element B" means that on a plane, at least part of the projection of element B is located within the projection of element A or at least part of the projection of element A is located within the projection of element B.

[0072] The invention provides a display device. Figure 1 is a schematic diagram of a display device 1 according to an embodiment of the present invention. Figure 2 FIG. 4 is a schematic top view of a viewing angle control module 30 according to an embodiment of the present invention. Figure 3 yes Figure 2 A cross-sectional schematic diagram of a display viewing angle control module 30 is shown. Figure 4 FIG. 3 is a schematic diagram of the configuration of the touch electrode 3070 according to an embodiment of the present invention. Figure 5 is a schematic exploded view of a viewing angle control module 30 according to an embodiment of the present invention.

[0073] like Figure 1 As shown, the display device 1 includes a display module 10 for displaying images and a viewing angle control module 30 disposed adjacent to the display module 10 .

[0074] The display module 10 may include a self-luminous display module or a non-self-luminous display module. In some embodiments, the display module 10 may include a liquid crystal display module, an organic light emitting diode (OLED) display module, a micro light emitting diode (MicroLED) display module, a quantum dot light emitting diode (QLED) display module, other suitable display modules, or any combination thereof.

[0075] The viewing angle control module 30 may include a first substrate 301, a second substrate 303 disposed opposite to the first substrate 301, a viewing angle control medium 305 disposed between the first substrate 301 and the second substrate 303, and a touch layer 307 disposed between the viewing angle control medium 305 and the first substrate 301. In some embodiments, the viewing angle control module 30 may include an active area AA and a non-active area NA surrounding the active area AA. The touch layer 307 and the viewing angle control medium 305 are disposed in the active area AA of the viewing angle control module 30, such as Figure 2 as well as Figure 3 In some embodiments, the thickness T1 of the viewing angle control module 30 may be greater than or equal to 5 μm and less than or equal to 30 μm, but the present invention is not limited thereto.

[0076] The first substrate 301 and / or the second substrate 303 may include a rigid substrate, a flexible substrate, or a combination thereof, but the present invention is not limited thereto. In some embodiments, the first substrate 301 and / or the second substrate 303 may include a flexible substrate, such as Figure 3 As shown, but the present invention is not limited thereto. The first substrate 301 and / or the second substrate 303 may include a light-transmitting material, a semi-transmitting material, or an opaque material. The first substrate 301 and / or the second substrate 303 may be a single-layer or multi-layer structure. In some embodiments, the first substrate 301 and / or the second substrate 303 may include a wafer, glass, quartz, sapphire, ceramic, polyimide (PI), polycarbonate (PC), polyethyleneterephthalate (PET), polypropylene (PP), other suitable materials or combinations thereof, but the present invention is not limited thereto.

[0077] The first substrate 301 may have a first edge 301S, and the second substrate 303 may have a second edge 303S corresponding to the first edge 301S of the first substrate 301. In an embodiment in which the first substrate 301 and the second substrate 303 include flexible substrates, the first substrate 301 and / or the second substrate 303 may be warped. In this embodiment, in a direction perpendicular to the normal line of the display device 1 (Z direction), the distance between the first edge 301S of the first substrate 301 and the second edge 303S of the second substrate 303 may be smaller than the distance between the first substrate 301 and the second substrate 303 in the active area AA, such as Figure 3 In the embodiment where the first substrate 301 and the second substrate 303 include rigid substrates, in a direction perpendicular to the normal line of the display device 1 (Z direction), the distance between the first edge 301S of the first substrate 301 and the second edge 303S of the second substrate 303 may be approximately equal to the distance between the first substrate 301 and the second substrate 303 in the active area AA.

[0078] The first substrate 301 and the second substrate 303 may have the same or different structures, shapes, and areas. In some embodiments, on a plane (XY plane) perpendicular to the normal direction (Z direction) of the display device 1, the projection area of ​​the first substrate 301 may be larger than the projection area of ​​the touch layer 307, and the projection area of ​​the second substrate 303 may be larger than the projection area of ​​the first substrate 301, such as Figure 2 In some embodiments, on a plane (XY plane) perpendicular to the normal direction (Z direction) of the display device 1 , the projection area of ​​the first substrate 301 may be greater than the projection area of ​​the touch layer 307 and equal to the projection area of ​​the second substrate 303 .

[0079] In some embodiments, the viewing angle control medium 305 may include liquid crystal 3051 , but the present invention is not limited thereto.

[0080] The touch layer 307 may include a bridge electrode 3071 disposed on the first substrate 301, a touch electrode 3070, and an insulating layer 3073 disposed between the bridge electrode 3071 and the touch electrode 3070. Figure 3 As shown. The bridging electrode 3071, the touch electrode 3070 and the insulating layer 3073 are all disposed between the viewing angle control medium 305 and the first substrate 301. In some embodiments, the bridging electrode 3071 is disposed adjacent to the first substrate 301, the touch electrode 3070 is disposed adjacent to the viewing angle control medium 305, and the insulating layer 3073 is disposed between the bridging electrode 3071 and the touch electrode 3070. In other words, the bridging electrode 3071 is disposed between the touch electrode 3070 and the first substrate 301, as shown in FIG. Figure 3In some embodiments, the bridging electrode 3071 is disposed adjacent to the viewing angle control medium 305, the touch electrode 3070 is disposed adjacent to the first substrate 301, and the insulating layer 3073 is disposed between the bridging electrode 3071 and the touch electrode 3070. In other words, the touch electrode 3070 is disposed between the bridging electrode 3071 and the first substrate 301.

[0081] In some embodiments, the touch electrode 3070 may include a first touch electrode 3072 and a second touch electrode 3074 that are not electrically connected to each other. Figure 4 As shown, the first touch electrode 3072 may include a plurality of first touch units 3072A and the second touch electrode 3074 may include a plurality of second touch units 3074A. The plurality of first touch units 3072A are arranged along a first direction (e.g., a Y direction), and the plurality of second touch units 3074A extend along a second direction (e.g., an X direction) different from the first direction. The insulating layer 3073 may have a plurality of openings H. The bridging electrode 3071 may be electrically connected to the first touch electrode 3072 of the touch electrode 3070 through the opening H of the insulating layer 3073. Specifically, the bridging electrode 3071 may be electrically connected to the first touch unit 3072A of the first touch electrode 3072 through the opening H. The plurality of first touch units 3072A may be electrically connected to each other through the bridging electrode 3071. The plurality of second touch units 3074A may be electrically connected to each other and not electrically connected to the bridging electrode 3071.

[0082] In some embodiments, Figure 3 as well as Figure 5 As shown, the viewing angle control module 30 may include a sealant 309 disposed between the first substrate 301 and the second substrate 303 and surrounding the touch layer 307. That is, the sealant 309 may surround the first touch electrode 3072 and the second touch electrode 3074. The sealant 309 may be disposed in the non-active area NA. In some embodiments, the viewing angle control module 30 may further include an auxiliary sealant 313 disposed between the first substrate 301 and the second substrate 303. The auxiliary sealant 313 may be located between the sealant 309 and the first edge 301S of the first substrate 301 and the second edge 303S of the second substrate 303. In some embodiments, the minimum distance D1 between the auxiliary sealant 313 and the first edge 301S of the first substrate 301 and the second edge 303S of the second substrate 303 may be about 0.5 to 300 micrometers (micrometer, μm). That is, the minimum distance D1 between the auxiliary sealant 313 and the first edge 301S of the first substrate 301 and the second edge 303S of the second substrate 303 may be greater than or equal to 0.5 micrometers and less than or equal to 0.5 to 300 micrometers. In some embodiments, the auxiliary sealant 313 may be located on one side or two opposite sides of the sealant 309, such as Figure 2 as well as Figure 5 In some embodiments, the auxiliary sealant 313 may have a "mouth" shape surrounding each side of the sealant 309 .

[0083] In some embodiments, the viewing angle control module 30 may further include a conductive glue 311 disposed between the first substrate 301 and the second substrate 303 and between the sealant 309 and the auxiliary sealant 313. Figures 2 to 5 In some embodiments, the conductive glue 311 may be located on one side of the frame glue 309, but the present invention is not limited thereto. In some embodiments, the conductive glue 311 may have a "mouth" shape surrounding each side of the frame glue 309. In some embodiments, the conductive glue 311 may include a plurality of conductive particles M, such as Figure 3 As shown. The conductive glue 311 has a conductive glue width and at least one opening. For example, Figure 2 As shown, the conductive paste 311 extends along the X direction and has an opening O in the X direction. The conductive paste 311 has a conductive paste width W in the Y direction perpendicular to the X direction.

[0084] In some embodiments, a first conductive layer 3011, a first insulating layer 3013, and an intermediate insulating layer 302 may be disposed on the first substrate 301. The first conductive layer 3011 may be disposed between the touch layer 307 and the first insulating layer 3013, and the intermediate insulating layer 302 may be disposed between the touch layer 307 and the first conductive layer 3011. Figure 3 As shown. The first conductive layer 3011 may have a single-layer or multi-layer structure. In some embodiments, the first conductive layer 3011 may include a transparent conductive layer. The transparent conductive layer may include an indium tin oxide (ITO) film, an indium zinc oxide (IZO) film, an aluminum zinc oxide (AZO) film, a zinc zirconium oxide (ZZO) film, other similar compounds and any combination thereof, but the present invention is not limited thereto. In some embodiments, the first insulating layer 3013 may include a polyimide (PI) film, other similar compounds and any combination thereof, but the present invention is not limited thereto. In some embodiments, the intermediate insulating layer 302 may include an oxide film, a nitride film, an oxynitride film, an OG film, an IMF film, other similar compounds and any combination thereof. In some embodiments, the intermediate insulating layer 302 may include a silicon oxynitride film, but the present invention is not limited thereto.

[0085] In some embodiments, a second conductive layer 3031 and a second insulating layer 3033 may be disposed on the second substrate 303. The second conductive layer 3031 and the second insulating layer 3033 may have structures similar to those of the first conductive layer 3011 and the first insulating layer 3013, so their compositions are not described in detail herein. The second conductive layer 3031 may be disposed between the second insulating layer 3033 and the second substrate 303. Figure 3 shown.

[0086] In some embodiments, the conductive adhesive 311 may electrically connect the first conductive layer 3011 , the second conductive layer 3031 , and / or the touch layer 307 with an integrated circuit (IC), a flexible printed circuit (FPC), or an external device.

[0087] In some embodiments, the first substrate 301 and / or the second substrate 303 may be provided with a metal wire 304 that can electrically connect the first substrate 301 and / or the second substrate 303 to an integrated circuit (IC), a flexible printed circuit (FPC), or an external device or ground the first substrate 301 and / or the second substrate 303. The first conductive layer 3011 and the second conductive layer 3031 can be electrically connected to an integrated circuit (IC), a flexible printed circuit (FPC), or an external device through the metal wire 304 to transmit or receive a substrate control signal or ground. The metal wire 304 can be disposed in the opening O of the conductive glue 311. In some embodiments, the minimum distance between the conductive glue 311 and the metal wire 304 can be greater than 2 times the conductive glue width W (2W). Through the above configuration, the risk of short circuit between the conductive glue 311 and the metal wire 304 can be avoided or reduced.

[0088] In some embodiments, the metal wire 304 may be disposed on the second substrate 303, and the first conductive layer 3011 may be electrically connected to the metal wire 304 disposed on the second substrate 303 through a guide hole, a conductive adhesive, any suitable conductive member, or a combination thereof. The first conductive layer 3011 and the second conductive layer 3031 may be electrically connected to an integrated circuit (IC), a flexible printed circuit (FPC), or an external device or grounding through the metal wire 304 disposed on the second substrate 303, but the present invention is not limited thereto. In some embodiments, the metal wire 304 may be disposed on the first substrate 301 and the second substrate 303, respectively, and the first conductive layer 3011 and the second conductive layer 3031 may be electrically connected to an integrated circuit (IC), a flexible printed circuit (FPC), or an external device or grounding through the metal wire 304 disposed on the first substrate 301 and the second substrate 303, respectively.

[0089] In some embodiments, a signal line 306 that can electrically connect the touch layer 307 and an integrated circuit (IC), a flexible printed circuit (FPC), or an external device or a peripheral circuit (not shown) may be provided between the first substrate 301 and the second substrate 303. The signal line 306 may be provided in the opening O of the conductive glue 311. In some embodiments, the minimum distance between the conductive glue 311 and the signal line 306 may be greater than 2 times the conductive glue width W. Through the above configuration, the risk of short circuit between the conductive glue 311 and the signal line 306 can be reduced. In some embodiments, the signal line 306 may be provided on the first substrate 301. A portion of the signal line 306 in the active area AA overlaps with the first touch electrode 3072 in the normal direction (Z direction) of the display device and is electrically connected to the first touch electrode 3072. In some embodiments, the portion of the signal line 306 in the active area AA may be located between the first substrate 301 and the first touch electrode 3072, such as Figure 3 As shown, the present invention is not limited thereto. In some embodiments, the first touch electrode 3072 may be located between the portion of the signal line 306 in the active area AA and the first substrate 301. In some embodiments, the portion of the signal line 306 in the non-active area NA may overlap with the conductive glue 311 in the Z direction. In some embodiments, the conductive glue 311 in the non-active area NA may be located between the portion of the signal line 306 and the second substrate 303, as shown in FIG. Figure 3 The signal line 306 can electrically connect the first touch electrode 3072 with an integrated circuit (IC), a flexible printed circuit (FPC), or an external device to transmit a signal to the first touch electrode 3072 or receive a signal from the first touch electrode 3072. In some embodiments, the signal line 306 can be electrically connected to the integrated circuit (IC), the flexible printed circuit (FPC), or the external device disposed on the second substrate 303 through the conductive adhesive 311, the guide hole, any suitable conductive member, or a combination thereof.

[0090] In some embodiments, the signal line 306 may be electrically connected to the second touch electrode 3074. The signal line 306 may electrically connect the second touch electrode 3074 and an integrated circuit (IC), a flexible printed circuit (FPC), or an external device to transmit a signal to the second touch electrode 3074 or receive a signal from the second touch electrode 3074.

[0091] The sealant 309, the auxiliary sealant 313, the conductive glue 311 and the metal wire 304 can be disposed in the non-active area NA of the viewing angle control module 30. The signal line 306 is disposed in the active area AA of the viewing angle control module 30 and extends from the active area AA of the viewing angle control module 30 to the non-active area NA of the viewing angle control module 30.

[0092] Figure 6FIG. 5 is a schematic diagram of the configuration of the viewing angle control module 30 and the flexible circuit board 50 according to an embodiment of the present invention. Figure 7 FIG. 5 is a schematic diagram of the configuration of the viewing angle control module 30 and the flexible circuit boards 51 and 52 according to another embodiment of the present invention. Figure 8 FIG. 2 is a schematic diagram of the configuration of the viewing angle control module 30 and the integrated circuit 70 according to an embodiment of the present invention. Fig. 9 FIG. 1 is a schematic diagram of the configuration of the viewing angle control module 30, the integrated circuit 70 and the flexible circuit board 51 according to an embodiment of the present invention. Figures 6 to 9 The configuration relationship between the viewing angle control module 30 and the integrated circuit and / or the flexible circuit board is further described.

[0093] Figure 6 FIG. 1 is a schematic diagram of the configuration of the viewing angle control module 30 and the flexible circuit board 50 according to an embodiment of the present invention. Figure 6 In the flexible circuit board 50, a first touch signal pad S1, a second touch signal pad S3, and a control signal pad S2 are provided. In some embodiments, the second touch signal pad S3 is provided between the first touch signal pad S1 and the control signal pad S2. The metal line 304 can be electrically connected to the control signal pad S2. The first conductive layer 3011 and / or the second conductive layer 3031 are electrically connected to the control signal pad S2 through the metal line 304. In some embodiments, the control signal pad S2 can be electrically connected to an external device to receive, for example, a switch signal to the first substrate 301 and the second substrate 303, but the present invention is not limited thereto. In some embodiments, part of the control signal pad S2 can be electrically connected to an external device and part of the control signal pad S2 can be grounded. The signal line 306 can be electrically connected to the first touch signal pad S1 and the second touch signal pad S3. The first touch electrode 3072 can be electrically connected to the first touch signal pad S1 through the signal line 306, and the second touch electrode 3074 can be electrically connected to the second touch signal pad S3 through the signal line 306. The first touch electrodes 3072 and the second touch electrodes 3074 may be electrically connected to an external device to receive or transmit, for example, a touch signal to the touch layer 307 , but the present invention is not limited thereto.

[0094] Figure 7 2 is a schematic diagram of the configuration of the viewing angle control module 30 and the flexible circuit boards 51 and 52 according to another embodiment of the present invention. In addition to the control signal pad S2 being disposed on the flexible circuit board 51, and the first touch signal pad S1 and the second touch signal pad S3 being disposed on the flexible circuit board 52 spaced a distance from the flexible circuit board 51, the connection method of the control signal pad S2, the first touch signal pad S1 and the second touch signal pad S3 and the first conductive layer 3011 and / or the second conductive layer 3031 and the first touch electrode 3072 and the second touch electrode 3074 is the same as that of the embodiment of the present invention. Figure 6 The configuration described is the same, so it will not be repeated here.

[0095] Figure 8 FIG. 1 is a schematic diagram of the configuration of the viewing angle control module 30 and the integrated circuit 70 according to an embodiment of the present invention. Figure 8 In the embodiment, the integrated circuit 70 is disposed on the first substrate 301 or the second substrate 303. The integrated circuit 70 is electrically connected to an external device. The metal line 304 is electrically connected to the integrated circuit 70 to receive, for example, a switch signal to the first substrate 301 and the second substrate 303, but the present invention is not limited thereto. The signal line 306 is electrically connected to the integrated circuit 70 to receive or transmit, for example, a touch signal to the touch layer 307, but the present invention is not limited thereto.

[0096] Fig. 9 FIG. 1 is a schematic diagram of the configuration of the viewing angle control module 30, the integrated circuit 70 and the flexible circuit board 51 according to an embodiment of the present invention. Fig. 9 In the embodiment, the integrated circuit 70 is disposed on the first substrate 301 or the second substrate 303. The integrated circuit 70 is electrically connected to an external device. The signal line 306 is electrically connected to the integrated circuit 70 to receive or transmit, for example, a touch signal to the touch layer 307, but the present invention is not limited thereto. The control signal pad S2 is disposed on the flexible circuit board 51. The metal wire 304 can be electrically connected to the control signal pad S2. The first conductive layer 3011 and / or the second conductive layer 3031 are electrically connected to the control signal pad S2 through the metal wire 304. In some embodiments, the control signal pad S2 can be electrically connected to an external device to receive, for example, a switch signal to the first substrate 301 and the second substrate 303, but the present invention is not limited thereto. In some embodiments, part of the control signal pad S2 can be electrically connected to an external device and part of the control signal pad S2 can be grounded. The configuration relationship between the viewing angle control module 30 and the integrated circuit and / or the flexible circuit board in the present invention is not limited to the above reference. Figures 6 to 9 In some embodiments, the first touch signal pad S1, the control signal pad S2, and the second touch signal pad S3 can be respectively disposed on three flexible circuit boards spaced a distance apart. In some embodiments, the metal line 304 can be electrically connected to the integrated circuit 70, and the signal line 306 can be electrically connected to the flexible circuit board on which the first touch signal pad S1 and the second touch signal pad S3 are disposed. In some embodiments, the signal line 306 and the metal line 304 in the viewing angle control module 30 can be directly electrically connected to an external device or grounded.

[0097] Fig.10 FIG. 1 is a schematic diagram of an exploded view of a viewing angle control module 30 according to another embodiment of the present invention. Fig.10 This illustrates a configuration in which the signal line 306 and the metal line 304 in the viewing angle control module 30 can be directly electrically connected to an external device or grounded. In addition to the plane (XY plane) perpendicular to the normal direction (Z direction) of the display device 1, Fig.10The projection shapes of the first substrate 301' and the second substrate 303' are Figure 1 In addition to the different projection shapes of the first substrate 301 and the second substrate 303, Fig.10 The viewing angle control module 30 shown is Figure 1 The viewing angle control module 30 shown in FIG. 1 has a substantially similar structure, so the following mainly focuses on Fig.10 The viewing angle control module 30 shown is Figure 1 The differences between the viewing angle control modules 30 shown are described below.

[0098] like Fig.10 As shown, the first substrate 301' may include a first main portion 301'A, a first extension portion 301'B and a first connection portion 301'C. The first main portion 301'A has a side 301'A1 adjacent to the first extension portion 301'B and the first connection portion 301'C. In some embodiments, the extension direction of the side 301'A1 is the same as the extension direction (X direction) of the conductive adhesive 311. The first connection portion 301'C extends from the first main portion 301'A to the first extension portion 301'B and connects the first main portion 301'A and the first extension portion 301'B. The first extension portion 301'B extends along a direction that is substantially perpendicular to the extension direction of the first connection portion 301'C. There may be an angle α between the extension direction of the first connection portion 301'C and the side 301'A1 of the first main portion 301'A, wherein the angle α may be in the range of 90 to 180°.

[0099] The second substrate 303' may include a second main portion 303'A, a second extension portion 303'B, and a second connection portion 303'C. In some embodiments, on a plane (XY plane) perpendicular to the normal direction (Z direction) of the display device 1, the projection of the first substrate 301' may have substantially the same area and shape as the second substrate 303', but the present invention is not limited thereto. In some embodiments, the second main portion 303'A has a side 303'A1 corresponding to the side 301'A1 of the first main portion 301'A. The second connection portion 303'C extends from the second main portion 303'A to the second extension portion 303'B and connects the second main portion 303'A and the second extension portion 303'B. The second extension portion 303'B extends along a direction that is substantially perpendicular to the extension direction of the second connection portion 303'C. There may be an angle β between the extension direction of the second connection portion 303 ′C and the side edge 303 ′A1 of the second main portion 303 ′A, wherein the angle β may be in the range of 90 to 180°.

[0100] In some embodiments, the metal wire 304 connecting the first conductive layer 3011 and the second conductive layer 3031 and the signal wire 306 connecting the first touch electrode 3072 and the second touch electrode 3074 may extend to the first extension portion 301'B of the first substrate 301' and / or the second extension portion 303'B of the second substrate 303'. Through the first extension portion 301'B of the first substrate 301' and the second extension portion 303'B of the second substrate 303', the first conductive layer 3011, the second conductive layer 3031, the first touch electrode 3072, and the second touch electrode 3074 may be directly electrically connected to an external device without being indirectly electrically connected to the external device through an integrated circuit (IC) and / or a flexible printed circuit (FPC).

[0101] In summary, the present invention can provide a thin display device with good display quality. The display device provided according to some embodiments of the present invention includes a viewing angle control module having a thickness greater than or equal to 5 μm and less than or equal to 30 μm. In addition, according to some embodiments, the viewing angle control module of the present invention may have a first substrate including an extension portion and a second substrate. By including the first substrate and the second substrate of the extension portion, the viewing angle control module of the present invention can be directly electrically connected to an external device without going through an integrated circuit (IC) and / or a flexible printed circuit (FPC).

[0102] Although the embodiments of the present invention and their advantages have been disclosed as above, it should be understood that any person skilled in the art can make changes, substitutions and modifications without departing from the spirit and scope of the present invention. In addition, the scope of protection of the present invention is not limited to the manufacturing process, machine, manufacturing, material composition, device, method and steps in the specific embodiments described in the specification. Any person skilled in the art can understand the current or future developed manufacturing process, machine, manufacturing, material composition, device, method and steps from the disclosure of some embodiments of the present invention. As long as the same functions can be implemented in the embodiments described herein or the same results can be obtained, they can be used according to some embodiments of the present invention. Therefore, the scope of protection of the present invention includes the above-mentioned manufacturing process, machine, manufacturing, material composition, device, method and steps. In addition, the features between the embodiments can be mixed and matched as needed as long as they do not violate the spirit of the invention or conflict. Each claim constitutes a separate embodiment, and the scope of protection of the present invention also includes the combination of each claim and embodiment.

Claims

1. A display device, characterized in that: include: A display module, used for displaying images; as well as A viewing angle control module is disposed adjacent to the display module, and the viewing angle control module includes: a first substrate; a second substrate, arranged opposite to the first substrate; A viewing angle control medium is disposed between the first substrate and the second substrate; and A touch layer is disposed between the viewing angle control medium and the first substrate, and the touch layer includes: A bridging electrode is disposed on the first substrate; A first touch electrode is disposed on the first substrate; and an insulating layer, disposed between the bridging electrode and the first touch electrode and having an opening; Wherein, the first touch electrode is electrically connected to the bridge electrode through the opening.

2. The display device according to claim 1, wherein: The first touch electrode includes a plurality of first touch units, the plurality of first touch units are arranged along a first direction, and the bridging electrode bridges the plurality of first touch units through the opening.

3. The display device according to claim 1, wherein: The touch control layer further includes a second touch control electrode disposed on the insulating layer, wherein the second touch control electrode is electrically disconnected from the first touch control electrode.

4. The display device according to claim 3, characterized in that The viewing angle control module further includes a sealant disposed between the first substrate and the second substrate.

5. The display device according to claim 4, characterized in that The frame glue surrounds the first touch electrode and the second touch electrode.

6. The display device according to claim 3, wherein: The second touch electrode includes a plurality of second touch units, and the plurality of second touch units are arranged along a second direction, wherein the second direction is different from the first direction.

7. The display device according to claim 1, wherein: The viewing angle control module further includes a frame glue, a conductive glue and an auxiliary frame glue arranged between the first substrate and the second substrate, and the conductive glue is located between the frame glue and the auxiliary frame glue.

8. The display device according to claim 1, wherein: The viewing angle control module further includes a signal line disposed on the first substrate, wherein the signal line overlaps with the first touch electrode and is electrically connected to the first touch electrode.

9. The display device according to claim 8, wherein: The viewing angle control module further includes a conductive adhesive disposed between the first substrate and the second substrate, wherein in a cross-sectional view, the conductive adhesive is between the signal line and the second substrate.

10. The display device according to claim 1, wherein: The first substrate is a flexible substrate.

11. The display device according to claim 1, wherein: The second substrate is a flexible substrate.

12. The display device according to claim 1, wherein: The thickness of the viewing angle control module is greater than or equal to 5 μm and less than or equal to 30 μm.

Images