Display device

Abstract

The invention provides a display device. The display device comprises a display panel, a conductive layer, a shell and a protective layer, the display panel is provided with a display side and a non-display side, and the non-display side is opposite to the display side. The conductive layer is arranged on the non-display side. The shell is used for containing the display panel. The protective layer is arranged on at least one side face of the display panel. The display panel comprises a first part and a second part, and when the first part and the second part of the display panel are close to each other, the protective layer is arranged between the shell and the display panel.

Description

[0001] This application is a divisional application of the invention patent application with application date of June 24, 2020, application number 202010587395.5, and invention name “Display Device”. Technical Field

[0002] The present invention relates to a display device, in particular to a rollable display device with an antistatic element. Background Art

[0003] In recent years, rollable display devices have become one of the development focuses in the field of display devices. However, when a general rollable display device is rolled up, static electricity may be generated due to friction between layers, resulting in static discharge, which increases the probability of damage to components in the display device. Therefore, how to reduce the static electricity of components in the rollable display device to reduce the probability of damage to components in the display device remains an important issue. Summary of the invention

[0004] In some embodiments, the present invention provides a display device. The display device includes a display panel, a conductive layer, a housing, and a protective layer. The display panel has a display side and a non-display side, the non-display side being opposite to the display side. The display panel also includes a first portion and a second portion. The conductive layer is disposed on the non-display side. The housing is used to accommodate the display panel. When the first portion and the second portion of the display panel are close to each other, the protective layer is disposed on at least one side of the display panel. The protective layer is disposed between the housing and the display panel.

[0005] In some embodiments, the present invention provides a display device. The display device includes a display panel. The display panel includes a substrate, including a first surface and a second surface, the first surface is opposite to the second surface; a circuit layer is disposed on the first surface; a cover layer is disposed on the first surface, wherein the circuit layer is disposed between the substrate and the cover layer; and a conductive layer is disposed on the second surface. The display panel includes a first portion and a second portion, and when the display panel is folded, at least a portion of the conductive layer is disposed between the first portion and the second portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 FIG. 1 is a schematic cross-sectional view of a display device according to a first embodiment of the present invention.

[0007] Figure 2 for Figure 1 A partial enlarged schematic diagram of part A1 is shown.

[0008] Figure 3 FIG. 4 is a cross-sectional schematic diagram of a display device according to a second embodiment of the present invention.

[0009] Figure 4FIG. 1 is a schematic top view of a display device according to a second embodiment of the present invention.

[0010] Figure 5 FIG. 4 is a cross-sectional schematic diagram of a display device according to a third embodiment of the present invention.

[0011] Figure 6 FIG. 4 is a schematic top view of a display device according to a fourth embodiment of the present invention.

[0012] Figure 7 FIG. 4 is a cross-sectional schematic diagram of a display device according to a fourth embodiment of the present invention.

[0013] Figure 8 FIG. 5 is a cross-sectional schematic diagram of a display device according to a fifth embodiment of the present invention.

[0014] Fig. 9 FIG. 4 is a cross-sectional schematic diagram of a display device according to a sixth embodiment of the present invention.

[0015] Fig.10 It is a cross-sectional schematic diagram of a display device according to a variation of the sixth embodiment of the present invention.

[0016] Fig.11 It is a cross-sectional schematic diagram of a display device according to another variant embodiment of the sixth embodiment of the present invention.

[0017] Fig.12 FIG. 1 is a schematic top view of a display device according to a seventh embodiment of the present invention.

[0018] Fig.13 FIG. 4 is a cross-sectional schematic diagram of a display device according to an eighth embodiment of the present invention.

[0019] Fig.14 It is a cross-sectional schematic diagram of a display device according to a variation of the eighth embodiment of the present invention.

[0020] Fig.15 FIG. 4 is a cross-sectional schematic diagram of a display device according to a ninth embodiment of the present invention.

[0021] Explanation of reference numerals: 100-display device; 102-rollable display panel; 104, 106, EL-antistatic element; 104A-first antistatic element; 104B-second antistatic element; 104-1, 104-2-sub-antistatic element; 108-conductive connector; A1, CD-portion; AL-active layer; AR2, AR1-region area; B-region; BF-buffer layer; C1-semiconductor layer; CA-axis; CL-circuit layer; CM-conductive material; CN-rolling bar portion; CO-covering layer; CP1-first bonding material; CP2-second bonding material; CT, CT1, CT2, CT3-contact element; D1-drain; D2-direction; DP-display panel; DR-display region; DS-display side; E1-first electrode; E2-second electrode; ED1, ED2-end; G1-gate; GI-gate insulation layer; HU-housing; H1, H2 2-thickness; IL1, IL2, EN-insulating layer; ILD-interlayer dielectric layer; LM-light-emitting layer; LU-light-emitting unit; NS-non-display side; OL-optical layer; OP-opening; P1-first part; P2-second part; PB-circuit board; PDL-pixel definition layer; PI1, PI2-projection range; PL-protective layer; PR-peripheral area; R1-first area; R2-second area; RDN-curling direction; MDN-curling movement direction; S1-source; S11-first layer; S12-second layer; S13-third layer; SB-substrate; SC1-first semiconductor layer; SC2-second semiconductor layer; SP-stretching part; SS, SS1, SS2, LSS, LSS1, LSS2-side; SSB-lower surface; SW-driving element; TE-touch layer; VH, VH1-hole; X, Y, Z-direction; A-A', B-B'-tangent. DETAILED DESCRIPTION

[0022] The present invention can be understood by referring to the following detailed description in conjunction with the accompanying drawings. It should be noted that in order to facilitate the understanding of the readers and for the simplicity of the drawings, the multiple drawings in the present invention only depict a portion of the electronic device, and the specific components in the drawings are not drawn according to the actual scale. In addition, the number and size of each component in the drawings are only for illustration and are not intended to limit the scope of the present invention.

[0023] Certain words are used throughout the specification and the appended claims 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 with different names. This document does not intend to distinguish between components with the same function but different names.

[0024] In the following description and claims, the words “including” and “comprising” are open-ended words, and thus should be interpreted as meaning “including but not limited to…”.

[0025] It should be understood that when an element or a film layer is referred to as being "disposed on" or "connected to" another element or film layer, it may be directly on or directly connected to the other element or film layer, or there may be an intervening element or film layer between the two (indirect case). Conversely, when an element is referred to as being "directly on" or "directly connected to" another element or film layer, there may be no intervening element or film layer between the two.

[0026] The terms "approximately," "equal," "equal," or "same," "substantially," or "approximately" are generally interpreted to mean within plus or minus 20% of a given value, or within plus or minus 10%, plus or minus 5%, plus or minus 3%, plus or minus 2%, plus or minus 1%, or plus or minus 0.5% of a given value.

[0027] Although the terms "first", "second", "third" ... can be used to describe a variety of components, the components are not limited to these terms. These terms are only used to distinguish a single component from other components in the specification. The same terms may not be used in the claims, but may be replaced by first, second, third ... according to the order of the components declared in the claims. Therefore, in the following description, the first component may be the second component in the claims.

[0028] It should be noted that the following embodiments may be implemented by replacing, reorganizing, or mixing the technical features in several different embodiments without departing from the spirit of the present invention.

[0029] Please refer to Figure 1 and Figure 2 , Figure 1 is a cross-sectional schematic diagram of a display device according to a first embodiment of the present invention, Figure 2 for Figure 1 The partially enlarged schematic diagram of the portion A1 shown in FIG. Figure 1 The electronic device shown may include a display device 100, which may display static or dynamic images or pictures according to user needs and operations, but is not limited thereto. The display device 100 may be applied to, for example, a notebook computer, a public display, a spliced ​​display, a car display, a touch display, a television, a monitor, a smart phone, a tablet computer, a light source module, a lighting device, or an electronic device applied to the above products, but is not limited thereto. Figure 1 As shown, the display device 100 may include a display panel DP, wherein the display panel DP of this embodiment may include, for example, a rollable display panel or an extended screen display panel, but is not limited thereto. The display panel DP in the following embodiments and variant embodiments will be described by taking a rollable display panel 102 as an example, but the present invention is not limited thereto. Figure 1As shown, the rollable display panel 102 may include a display side DS and a non-display side NS, the non-display side NS being opposite to the display side DS. The display side DS may be, for example, a side of the rollable display panel 102 used to display images, and the non-display side NS may be the other side where images are not displayed, located on the back side of the display side DS, but not limited thereto. The structure of the rollable display panel 102 will be described in detail below.

[0030] like Figure 2 As shown, the rollable display panel 102 in this embodiment may, for example, include a substrate SB, a circuit layer CL, and a plurality of light-emitting units LU. According to this embodiment, the substrate SB may be glass, plastic, metal, or a combination thereof. The substrate SB may be a flexible substrate, a rigid substrate, or a combination thereof. The material of the flexible substrate may, for example, include polyimide (PI), polycarbonate (PC), polyethylene terephthalate (PET), other suitable materials, or a combination of the above materials. The substrate SB may be a single layer or a multi-layer stack, but is not limited thereto. For example, the substrate SB may include PI, PET, and a stainless steel plate, but is not limited thereto. A plurality of light-emitting units LU may be disposed on the substrate SB, wherein the light-emitting units LU of this embodiment may, for example, include an organic light emitting diode (OLED), a quantum dot diode (QLED or QDLED), an inorganic light-emitting diode (LED), any other suitable light-emitting element, or a combination thereof. The inorganic light emitting diode may include, for example, a sub-millimeter light emitting diode (mini LED) or a micro light emitting diode (micro LED), but is not limited thereto. In one embodiment, the chip size of the sub-millimeter light emitting diode (mini LED) is about 100 microns to 300 microns, and the chip size of the micro light emitting diode (micro LED) is about 1 micron to 100 microns, but is not limited thereto.

[0031] For example, if Figure 2As shown, the light-emitting unit LU in this embodiment may be, for example, an organic light-emitting diode, and includes a first electrode E1, a second electrode E2, and a light-emitting layer LM, wherein the light-emitting layer LM is disposed between the first electrode E1 and the second electrode E2, but is not limited thereto. According to this embodiment, the light-emitting unit LU (organic light-emitting diode) may, for example, include a blue light-emitting diode, a red light-emitting diode, a green light-emitting diode, a white light-emitting diode, or other light-emitting diodes of suitable colors, but is not limited thereto. The first electrode E1 and the second electrode E2 may serve as the cathode and anode of the light-emitting unit LU, respectively, but is not limited thereto. In some embodiments, the first electrode E1 and the second electrode E2 may also serve as the anode and cathode of the light-emitting unit LU, respectively. The first electrode E1 and the second electrode E2 may, for example, include metal oxides, metal materials, other suitable conductive materials, or a combination of the above materials, but is not limited thereto. For example, the first electrode E1 and the second electrode E2 may include a transparent conductive material, such as indium tin oxide (ITO), but is not limited thereto. The circuit layer CL is disposed on the substrate SB, for example, may be located between the substrate SB and the light-emitting unit LU, and may include various wires, circuits and / or electronic components. For example, as Figure 2As shown, the circuit layer CL may include a plurality of driving elements SW. Taking one driving element SW as an example, the driving element SW may include, for example, a thin film transistor (TFT), but the present invention is not limited thereto. The driving element SW may include a gate G1, a source S1, a drain D1, a semiconductor layer C1, and a gate insulating layer GI, wherein the gate insulating layer GI may be located between the gate G1 and the semiconductor layer C1, but the present invention is not limited thereto. The material of the semiconductor layer C1 may include, for example, an amorphous semiconductor, a polycrystalline semiconductor, a metal oxide (for example, indium gallium zinc oxide (IGZO)), other suitable materials, or a combination of the above materials, but the present invention is not limited thereto. The gate G1, the source S1, and the drain D1 may include, for example, a metal material, other suitable conductive materials, or a combination of the above materials, but the present invention is not limited thereto. The gate insulating layer GI may include, for example, silicon nitride, silicon oxide, other suitable insulating materials, or a combination of the above materials, but the present invention is not limited thereto. According to the present embodiment, at least one element in the circuit layer CL may be electrically connected to at least one light emitting unit LU. For example, the drain electrode D1 of the driving element SW in the circuit layer CL may be electrically connected to the first electrode E1 of the light emitting unit LU, for example, through the contact CT. According to some embodiments, one of the plurality of driving elements SW may be electrically connected to one of the plurality of light emitting units LU, respectively. The source electrode S1 of the driving element SW may be electrically connected to the working voltage source (VDD) or the shared voltage source ( Figure 2 The gate electrode G1 of the driving element SW may be electrically connected to a switching element ( Figure 2 (not shown), wherein the switch element may be, for example, a thin film transistor, but is not limited thereto. Figure 2 The driving element SW shown is a top gate thin film transistor, but the present invention is not limited thereto. In some embodiments, the driving element SW may include a bottom gate thin film transistor or a multi-gate thin film transistor (e.g., a dual gate / double gate transistor). It should be noted that Figure 2 The number of the light emitting units LU and the driving elements SW is only exemplary, and the present invention is not limited thereto.

[0032] In some embodiments, the rollable display panel 102 may further include a pixel definition layer PDL disposed between the light emitting layers LM, wherein the pixel definition layer PDL may include at least one opening OP, and the light emitting layer LM of the light emitting unit LU may be disposed in the opening OP. In some embodiments, since the light emitting layer LM may be disposed in the opening OP, the opening OP of the pixel definition layer PDL may define a light emitting region or a light emitting area of ​​each light emitting unit LU, but the present invention is not limited thereto.

[0033] In some embodiments, the rollable display panel 102 may further include, for example, a buffer layer BF, an optical layer OL, and a cover layer CO, but is not limited thereto. The buffer layer BF is disposed between the substrate SB and the circuit layer CL, and may, for example, include any suitable buffer material. The optical layer OL may be selectively disposed in the rollable display panel 102, wherein the optical layer OL may, for example, include a polarizer, but is not limited thereto. The cover layer CO may be used to protect the film layer or element in the rollable display panel 102, wherein the cover layer CO may, for example, include glass, plastic, polymer, other suitable protective material, or a combination of the above materials, but is not limited thereto. In addition, in some embodiments, the rollable display panel 102 may further include, for example, a touch layer TE selectively, wherein the touch layer TE may include touch electrodes to provide the rollable display panel 102 with a touch function, but is not limited thereto. In some embodiments, the rollable display panel 102 may further include, for example, an interlayer dielectric layer ILD disposed on the gate insulating layer GI, an insulating layer IL1 disposed between the circuit layer CL and the light-emitting unit LU, an insulating layer IL2 disposed on the second electrode E2, and an insulating layer EN disposed on the insulating layer IL, but is not limited thereto. The insulating layer IL1 and the insulating layer IL2 include, for example, inorganic or organic insulating materials, or a combination of the above materials, such as (but not limited to) silicon oxide, silicon nitride, silicon oxynitride or other suitable materials. The insulating layer EN may be disposed on the light-emitting unit LU to protect the light-emitting unit LU, wherein the insulating layer EN may include any suitable insulating material, such as an organic or inorganic insulating material, or a combination thereof. In some embodiments, the insulating layer EN may be an encapsulation layer, which may be disposed on the light-emitting unit LU and cover the light-emitting unit LU and the film layer thereunder. In some embodiments, the insulating layer EN may include a three-layer structure of an inorganic layer, an organic layer and an inorganic layer.

[0034] Please refer to Figure 1 , and refer to Figure 2 In this embodiment, Figure 1As shown, in addition to the above-mentioned rollable display panel 102, the display device 100 may further include an anti-static element 104, wherein the anti-static element 104 may be, for example, disposed on one of the display side DS and the non-display side NS of the rollable display panel 102. The anti-static element 104 is an object that can conduct electric charges. According to some embodiments, the anti-static element may be disposed on both the display side DS and the non-display side NS. In detail, as Figure 1 As shown, the anti-static element 104 can be, for example, disposed on the non-display side NS of the rollable display panel 102, but is not limited thereto. The anti-static element 104 can be directly or indirectly formed on the non-display side NS surface of the rollable display panel 102, for example, Figure 1 and Figure 2 As shown, the anti-static element 104 of the display device 100 can be directly formed on the non-display side NS of the rollable display panel 102 and contact the non-display side NS, but the present invention is not limited thereto. In some embodiments, the anti-static element 104 can be directly disposed on the rollable display panel 102 by, for example, sputtering or deposition, but the present invention is not limited thereto. In addition, although Figure 1 The outer edge of the anti-static component 104 in the display device 100 shown can be roughly aligned with the outer edge of the rollable display panel 102, but the present invention is not limited thereto. The outer edge of the anti-static component 104 can protrude from the outer edge of the rollable display panel 102 or have an outer edge that is more retracted than the rollable display panel 102.

[0035] It should be noted that although Figure 2 The antistatic element 104 may be directly formed on the non-display side NS surface of the rollable display panel 102, but the present invention is not limited thereto. In some embodiments, the display device 100 may further include a conductive material (not shown), wherein the antistatic element 104 may be disposed on the non-display side NS of the rollable display panel 102 by means of the conductive material, but is not limited thereto. In detail, the conductive material may be a conductive adhesive, and the antistatic element 104 may be bonded to the substrate SB of the rollable display panel 102 by means of the conductive adhesive, but is not limited thereto. That is, in this embodiment, the antistatic element 104 may not be directly formed on the display side DS and / or the non-display side NS of the rollable display panel 102.

[0036] According to some embodiments, the anti-static element 104 may include any object that can conduct electric charge. For example, the anti-static element 104 may include a conductive layer, wherein the electrical conductivity of the conductive layer may be within 10 4 to 10 8 ohm -1 ·m -1, but not limited to this. The upper and lower limits in the above range are also contained in the conductivity range of the conductive layer. In detail, the material of the antistatic element 104 of the present embodiment may, for example, include copper, silver, aluminum, gold, zinc, iron, tin, graphite, other suitable materials or a combination of the above materials, but not limited to this. According to some embodiments, the antistatic element 104 may include a multilayer structure, for example, it may include a multilayer layer formed by the above materials, wherein the multilayer refers to at least two layers. In some embodiments, when the material of the antistatic element 104 includes graphite, the antistatic element 104 can be directly formed on the rollable display panel 102 by coating, but not limited to this.

[0037] Electrical conductivity is a measure of the ability of a substance to transmit electric current. It is the reciprocal of electrical resistivity. In the International System of Units, the unit of conductivity is Siemens / meter (S·m -1 )(siemens per meter) or ohm -1 ·m -1 In some embodiments, the conductivity of the anti-static element 104 can be measured by, for example, contacting the anti-static element 104 with a probe, but is not limited thereto. For example, a conductivity meter or a resistivity meter can be used for measurement. Figure 1 and Figure 2 104 shows a structure of a single-layer anti-static element 104, but the present invention is not limited thereto. In some embodiments, the anti-static element 104 may include a multi-layer structure. When the anti-static element 104 is a multi-layer structure, the conductivity of at least one layer in the multi-layer structure may be between 104 and 10 8 ohm -1 ·m -1 According to some embodiments, if the conductivity of the anti-static element 104 in the rollable display device is to be determined, it can be directly measured with a conductivity meter or a resistivity meter. Alternatively, the components (or elements) of the anti-static element 104 can be analyzed first, and then the conductivity corresponding to the component (element) can be found from the conductivity table. When the anti-static element 104 has multiple components (or elements), the conductivity of at least one component (or element) can be within 10 4 to 10 8 ohm -1 ·m -1 The material, structure, conductivity range, arrangement method and conductivity measurement method of the anti-static element 104 in this embodiment can be applied to the following embodiments and variant embodiments of the present invention, so they will not be described in detail.

[0038] In a general rollable display device, when the display device is folded / unfolded, friction may occur between the layers, and static electricity may be generated on the frictional layers, thereby causing electrostatic discharge (ESD) problems, which increases the chances of damage to components or film layers in the display device. For example, when a general rollable display device is folded / unfolded, a cover layer (e.g. Figure 2 The capping layer CO in the Figure 2 According to this embodiment, when the rollable display device is folded, it can also be called rolled up.

[0039] According to this embodiment, Figure 1 As shown, the rollable display panel 102 can be rolled up and unfolded. Specifically, the rollable display panel 102 can be rolled up according to a virtual or actual axis CA. For example, the display device 100 may include a scroll bar element (not shown), and the rollable display panel 102 can be rolled up according to the axis CA of the actual scroll bar element. The anti-static element 104 can be disposed on the non-display side NS of the rollable display panel 102. When the rollable display panel 102 is rolled up, in the radiation direction D2 of the axis CA, the rollable display panel 102 may include an overlapping portion due to being rolled up. For example, the rollable display panel 102 may include a first portion P1 and a second portion P2, and when the rollable display panel 102 is rolled up, the first portion P1 may overlap a second portion P2. Specifically, in the overlapping portion, the portion located in the inner circle may be defined as the first portion P1, for example, and the portion located in the outer circle may be defined as the second portion P2, for example, but is not limited thereto. As Figure 1 As shown, when the rollable display panel 102 is rolled and the first portion P1 and the second portion P2 are close to each other, the anti-static element 104 is located between the first portion P1 and the second portion P2 .

[0040] According to this embodiment, when the display device 100 is rolled up, since the anti-static element 104 is disposed between the first portion P1 and the second portion P2 of the rollable display panel 102, the first portion P1 may not contact the second portion P2 and reduce the chance of friction with the second portion P2. In addition, since the anti-static element 104 in this embodiment includes a conductive layer, the contact or friction between the first portion P1 and the anti-static element 104 may form an electrostatic discharge path, thereby reducing the amount of electrostatic charge on the first portion P1 and the second portion P2. In other words, since the display device 100 of this embodiment includes the anti-static element 104, the static electricity generated by the rollable display panel 102 when being rolled up can be reduced, thereby improving the pass rate of the display device 100. The definitions of the first portion P1 and the second portion P2 in this embodiment and the relationship between the anti-static element 104 and the first portion P1 and the second portion P2 when the rollable display panel 102 is rolled up can be applied to various embodiments and variant embodiments of the present invention. Although the first portion P1 and the second portion P2 are not directly marked in some drawings corresponding to the following embodiments, the relationship can still be described in accordance with the present invention. Figure 1 The positions of the first part P1 and the second part P2 of the present invention are clearly understood in the manner defined in the description related to the first embodiment in other drawings, and thus will not be described in detail hereinafter.

[0041] In addition, the curling rate of the rollable display panel 102 of the display device 100 may affect the amount of accumulated electrostatic charge, wherein when the curling rate of the rollable display panel 102 is greater, the friction speed between the layers will be greater, the amount of electrostatic charge generated may be greater, and the chance of electrostatic discharge will increase. Therefore, in this embodiment, the accumulation of static electricity can be reduced, for example, by controlling the curling rate of the rollable display panel 102 in the display device 100. In detail, in this embodiment, for example, the curling rate of the rollable display panel 102 can be made less than or equal to 0.1 meters per second (m / s) to reduce the amount of static electricity charge, but it is not limited thereto. The numerical range of the curling rate of the above-mentioned rollable display panel 102 can be applied to the following embodiments and variant embodiments of the present invention, so it will not be repeated later.

[0042] More embodiments of the present invention will be described below. To simplify the description, the same film layers or components in the following embodiments will be labeled the same, and their features will not be repeated, while the differences between the embodiments will be described in detail below.

[0043] Please refer to Figure 3 and Figure 4 , Figure 4 is a schematic top view of a display device according to a second embodiment of the present invention, Figure 3 for Figure 4 Schematic cross-sectional view along the tangent line A-A'. In order to simplify the drawings, Figure 3 The rollable display panel 102 in the following figures only exemplarily shows a single-layer structure, and the elements and film layers included in the rollable display panel 102 can be referred to. Figure 2 The structure and the above description are not repeated here. According to this embodiment, Figure 3 As shown, the display device 100 may include an anti-static element 106 disposed on the display side DS, but is not limited thereto. Figure 3 As shown, at least a portion of the display device 100 is not curled, for example, the portion of the display device 100 located in area B is not curled. Figure 3 As shown, in this embodiment, the rollable display panel 102 may include a first portion P1 and a second portion P2. Figure 3 When the rollable display panel 102 is rolled up, the first portion P1 and the second portion P2 may be close to each other. At this time, the anti-static element 106 may be located between the first portion P1 and the second portion P2. Figure 3 When the rollable display panel 102 is rolled up and the first part P1 and the second part P2 are close to each other, the first part P1 and the second part P2 may overlap each other in the radial direction of the axis, and the anti-static element 106 may be located between the first part P1 and the second part P2. According to the design of this embodiment, the friction between the first part P1 and the second part P2 can be reduced, thereby reducing the occurrence of electrostatic discharge in the display device. According to this embodiment, the anti-static element 106 may include any suitable conductive material. For example, the anti-static element 106 may include silver glue, anisotropic conductive film (ACF), other suitable conductive materials or a combination of the above materials, but is not limited thereto.

[0044] According to this embodiment, Figure 3 As shown, the rollable display panel 102 of the display device 100 may include a display region DR and a peripheral region PR. The display region DR may be defined, for example, by the region where a plurality of pixels (pixels) in the rollable display panel 102 are distributed. Specifically, each pixel or sub-pixel (hereinafter referred to as a pixel) in the rollable display panel 102 may be, for example, Figure 2The display area DR is defined by the pixel definition layer PDL in the display panel 102, wherein each of the multiple pixels may correspond to a light emitting unit LU and its corresponding driving element SW and other related elements, but is not limited thereto. According to the present embodiment, the display area DR may be defined as, for example, the area surrounded by the outer edges of the outermost pixels among the multiple pixels, but is not limited thereto. In addition, the area outside the display area DR in the rollable display panel 102 may be defined as the peripheral area PR, but is not limited thereto. That is to say, the display area DR may, for example, correspond to the area where the rollable display panel 102 displays the picture, and the peripheral area PR may, for example, correspond to the setting position of the peripheral elements of the rollable display panel 102, and may be an area where the picture is not displayed, but is not limited thereto. In some embodiments, the rollable display panel 102 may include only the display area DR but not the peripheral area PR, but is not limited thereto. The above-mentioned definitions of the display area DR and the peripheral area PR may be applied to various embodiments and variant embodiments of the present invention, and will not be repeated hereafter. It should be noted that, Figure 3 The sizes of the display area DR and the peripheral area PR shown in FIG. 1 are merely exemplary, and do not represent the actual sizes of the display area DR and the peripheral area PR in the rollable display panel 102 of the present invention.

[0045] According to this embodiment, the anti-static element 106 may be disposed corresponding to the peripheral region PR of the rollable display panel 102. Figure 4 As shown, the rollable display panel 102 includes a display area DR and a peripheral area PR outside the display area DR, wherein the anti-static element 106 can be arranged in the peripheral area PR in a square shape along the periphery of the display area DR, but is not limited thereto. It should be noted that Figure 3 and Figure 4 The structure in which the anti-static element 106 is disposed corresponding to the peripheral area PR is merely shown as an example. The range of the display area DR and the peripheral area PR of the rollable display panel 102 in the present invention is not limited to the range of the display area DR and the peripheral area PR. Figure 3 and Figure 4As shown. Since the antistatic element 106 in the present embodiment can be arranged in the peripheral area PR, the influence of the antistatic element 106 on the display function of the rollable display panel 102 can be reduced. In some embodiments, as long as the display function of the rollable display panel 102 is not affected, the antistatic element 106 can be arranged in any shape on the display side DS of the rollable display panel 102. For example, when the range shape of the display area DR of the rollable display panel 102 is a rectangle, the antistatic element 106 can be arranged in the peripheral area PR, for example, corresponding to the four corners of the display area DR, but not limited to this. The antistatic element 106 can be arranged in any shape (such as a square shape, a ring shape, a dot shape or an irregular shape) on the display side DS of the rollable display panel 102. The design of the antistatic element in the present embodiment can be applied to various embodiments and variant embodiments of the present invention, so it will not be repeated later.

[0046] Please refer to Figure 3 In addition to the above-mentioned elements or films, the display device 100 in this embodiment may further include a housing HU, wherein the housing HU in this embodiment may be used to accommodate the rollable display panel 102, but the present invention is not limited thereto. Figure 3 As shown, Figure 3 The structure shown in the figure includes a portion of the rollable display panel 102 that is unfolded and another portion that is not unfolded and stored in the housing HU, wherein when the user wants to end the use of the rollable display panel 102, the unfolded portion of the rollable display panel 102 can be stored in the housing HU by rolling it up, but the present invention is not limited thereto. The housing HU may, for example, include a rolling bar element ( Figure 3 Not shown), but not limited to this. It should be noted that Figure 3 The shape and setting position of the housing HU shown in the figure are only exemplary, and do not represent the actual shape and setting position of the housing HU in this embodiment. Figure 4 The housing HU is omitted, but the present invention is not limited thereto. The feature that the display device 100 includes the housing HU in this embodiment can be applied to various embodiments and variant embodiments of the present invention, and will not be described in detail hereinafter.

[0047] Please refer to Figure 5 , Figure 5 FIG. 4 is a cross-sectional schematic diagram of a display device according to a third embodiment of the present invention. Figure 5 The structure shown is Figure 1 One of the main differences in the structure of the first embodiment shown is the design of the anti-static element. Figure 5As shown, in addition to the anti-static element 104, the display device 100 may further include an anti-static element 106, wherein the anti-static element 106 is, for example, disposed on the display side DS of the rollable display panel 102. That is, the display device 100 in this embodiment may include the anti-static element 104 disposed on the non-display side NS of the rollable display panel 102 and the anti-static element 106 disposed on the display side DS, but is not limited thereto. The materials of the anti-static element 104 and the anti-static element 106 in this embodiment can refer to the first embodiment and the second embodiment described above, so they are not described in detail. In addition, as Figure 5 As shown, the anti-static element 106 in this embodiment can be arranged corresponding to the peripheral area PR. In detail, the anti-static element 106 can be arranged on the display side DS of the rollable display panel 102 corresponding to the peripheral area PR, but is not limited thereto. The arrangement positions of the anti-static elements 104 and 106 in this embodiment and the effect of reducing static electricity can refer to the contents of the first embodiment and the second embodiment above, and will not be repeated here.

[0048] Please refer to Figure 6 and Figure 7 , Figure 6 is a schematic top view of a display device according to a fourth embodiment of the present invention, Figure 7 for Figure 6 Schematic cross-sectional view along the tangent line B-B'. It should be noted that Figure 6 The shape of the middle housing HU is merely exemplary and does not represent the actual shape and location of the housing HU in this embodiment. Figure 6 The structure shown is Figure 1 One of the main differences in the structure of the first embodiment shown is the design of the anti-static element. Figure 6 As shown, in this embodiment, in addition to the anti-static element 104 disposed on the non-display side NS of the rollable display panel 102, the display device 100 may further include a protective layer PL disposed on the side surfaces of the rollable display panel 102 and the anti-static element 104. Specifically, the rollable display panel 102 may have a plurality of side surfaces (e.g. Figure 6 and Figure 7 The anti-static element 104 may also include a plurality of sides relative to the direction Z (eg, side SS, side SS1, and side SS2). Figure 6 and Figure 7 The protective layer PL may be disposed on the side of the rollable display panel 102 parallel to the roll direction RDN or the roll movement direction MDN of the rollable display panel 102 and the side of the antistatic element 104, and covers the side. Figure 6As shown, the rolling direction RDN or the rolling movement direction MDN (also referred to as the folding / unfolding direction) of the rollable display panel 102 may be, for example, parallel to the direction X, wherein the side SS1 and the side SS2 of the rollable display panel 102 and the side LSS1 and the side LSS2 of the anti-static element 104 may be parallel to the rolling movement direction MDN, therefore, the protective layer PL may be disposed and cover the side SS1 and the side SS2 of the rollable display panel 102 and the side LSS1 and the side LSS2 of the anti-static element 104, but is not limited thereto. In this embodiment, the protective layer PL may, for example, include any conductivity ranging from 10 3 to 10 7 ohm -1 ·m -1 In a general rollable display device, when the device is rolled up, the side of the display panel may rub against the housing, thereby causing static electricity to accumulate and increase the probability of static electricity discharge. For example, Figure 6 As shown, when the rollable display panel 102 of the display device 100 is rolled up, the two sides (e.g., side SS1 and side SS2) of the rollable display panel 102 perpendicular to the axis (not shown) may contact the housing HU and generate friction. However, according to this embodiment, since the display device 100 may include a protective layer PL disposed on the side SS1 and the side SS2, the chance of friction between the side SS1 and / or the side SS2 and the housing HU can be reduced. In addition, since the protective layer PL in this embodiment may, for example, include a conductive material and may be electrically connected to the antistatic element 104, for example, through the side LSS1 and the side LSS2 of the antistatic element 104, even if friction occurs between the housing HU and the protective layer PL, an electrostatic discharge path may be formed, thereby reducing the accumulation of static charge on the display device 100 and improving the qualified rate of the display device 100.

[0049] like Figure 7 As shown, Figure 7 for Figure 6 The structure shown is a cross-sectional schematic diagram along the tangent line BB'. As described above, in this embodiment, the protective layer PL can be disposed on the side SS1 and the side SS2 of the rollable display panel 102 and the side LSS1 and the side LSS2 of the anti-static element 104, and covers the side SS1 and the side SS2 of the rollable display panel 102 and the side LSS1 and the side LSS2 of the anti-static element 104, but is not limited thereto. It should be noted that although Figure 7The structure shown in FIG. 1 is that the anti-static element 104 is formed on the non-display side NS of the rollable display panel 102 before the protective layer PL partially covering the anti-static element 104 is formed, but the present invention is not limited thereto. In some embodiments, the protective layer PL may be formed first and then the anti-static element 104 is formed. The configuration of the protective layer in this embodiment can be applied to various embodiments and variant embodiments of the present invention, so it will not be described in detail hereinafter.

[0050] Please refer to Figure 8 , Figure 8 FIG. 5 is a cross-sectional schematic diagram of a display device according to a fifth embodiment of the present invention. Figure 8 The structure shown is Figure 1 One of the main differences in the structure of the first embodiment shown is the design of the anti-static element. Figure 8 As shown, the display device 100 may include a rollable display panel 102 and an anti-static element 104 disposed on a non-display side NS of the rollable display panel 102, wherein compared to Figure 1 In the structure shown in the figure, the anti-static element 104 in this embodiment does not need to be completely disposed on the non-display side NS of the rollable display panel 102, but the present invention is not limited thereto. Figure 8 As shown, the non-display side NS of the rollable display panel 102 can be divided into a first area R1 and a second area R2, wherein the anti-static element 104 can be, for example, disposed on the non-display side NS of the rollable display panel 102 corresponding to the first area R1, and the second area R2 of the non-display side NS may not include the anti-static element 104, but the present invention is not limited thereto. In some embodiments, when a user uses the display device 100, at least a portion of the rollable display panel 102 can be stored in the housing ( Figure 8 In other words, even if the display device 100 is unfolded to the limit state or stretched to the maximum display area, a portion of the rollable display panel 102 can still be stored in the housing without displaying function, wherein a portion of the rollable display panel 102 stored in the housing can be connected to the axis element ( Figure 8 The rollable display panel 102 may be rolled up and stored more easily by the axial element in the housing (not shown), but the invention is not limited thereto. As can be seen from the above, since a portion of the rollable display panel 102 may not be moved outside the housing due to the unfolding of the display device 100, when the rollable display panel 102 is rolled up, the probability of static electricity generated by friction in the portion of the rollable display panel 102 may be reduced. In other words, the anti-static element 104 of the display device 100 in this embodiment may not need to be disposed on the portion of the rollable display panel 102, thereby reducing the production cost of the display device 100. For example, if Figure 8 As shown, Figure 8 The rollable display panel 102 located in the first region R1 may be, for example, a part of the display device 100 that is located outside the housing when the display device 100 is unfolded to the limit state and is used to display the screen, and the rollable display panel 102 located in the second region R2 may be, for example, another part that is normally stored in the housing. Therefore, according to this embodiment, since the layers of the rollable display panel 102 in the second region R2 have a smaller chance of generating friction, and the layers of the rollable display panel 102 in the first region R1 have a greater chance of generating friction, the anti-static element 104 may be, for example, only arranged on the rollable display panel 102 corresponding to the first region R1, but not limited thereto. In addition, since the anti-static element 104 of this embodiment is not arranged on the rollable display panel 102 corresponding to the second region R2, the overall thickness of the display device 100 in the second region R2 can be reduced, so that the rollable display panel 102 can have a smaller radius of curvature after curling, thereby reducing the size of the display device 100. The setting features of the anti-static element in this embodiment can be applied to various embodiments and variant embodiments of the present invention, so they will not be repeated later.

[0051] Please refer to Fig. 9 , Fig. 9 FIG. 4 is a cross-sectional schematic diagram of a display device according to a sixth embodiment of the present invention. Fig. 9 The structure shown is Figure 1 One of the main differences of the structure of the first embodiment shown is the design of the anti-static element. Compared with the first embodiment, the present embodiment can also ground the anti-static element 104. For example, the anti-static element 104 can be a conductive layer, wherein the conductive layer can be electrically connected to a fixed potential. In detail, according to the present embodiment, the anti-static element 104 can be a conductive layer, and the conductive layer can be grounded by being electrically connected to a common voltage node. In this way, the amount of charge accumulated on the anti-static element 104 can be reduced. Fig. 9 As shown, the anti-static element 104 can be electrically connected to a common voltage node via a conductive connector 108, wherein the common voltage node can be, for example, set on the circuit board PB, or in other words, the anti-static element 104 can be electrically connected to a fixed quasi-point on the circuit board PB via the conductive connector 108, but is not limited thereto. The conductive connector 108 can be a conductive glue or solder. The conductive glue can be a silver glue or anisotropic conductive glue, but is not limited thereto. In some embodiments, the rollable display panel 102 can include a common voltage line (common line), and the common voltage line can be connected to a common voltage node on the circuit board PB, and the anti-static element 104 can be connected to the common voltage node, but is not limited thereto. In the present embodiment, the material of the conductive connector 108 can be, for example, the same as the anti-static element 106 on the display side DS in the second embodiment described above, so it will not be repeated here. In addition, according to the present embodiment, as Fig. 9As shown, the conductive connecting member 108 and the circuit board PB including the common voltage node in the display device 100 may be disposed in the housing HU, but the present invention is not limited thereto. Fig. 9 The structure of the anti-static element 104 electrically connected to the common voltage node on the circuit board PB in this embodiment is only exemplified. The actual location and shape of the conductive connector 108 and the circuit board PB in this embodiment are not limited to the following. Fig. 9 In addition, although Fig. 9 The anti-static element 104 shown in FIG. 1 is only partially disposed on the non-display side NS of the rollable display panel 102 (as shown above). Figure 8 In some embodiments, the anti-static element 104 can be disposed on the non-display side NS of the rollable display panel 102 (eg, Figure 1 As shown), the conductive connector 108 and the circuit board PB can be arranged at any appropriate position in the housing HU and electrically connected to the anti-static element 104, but are not limited thereto. Since the anti-static element 104 of this embodiment can be electrically connected to the common voltage node on the circuit board PB through the conductive connector 108, when the rollable display panel 102 is rolled up, the static charge accumulated due to friction can be discharged through the anti-static element 104, the conductive connector 108 and the common voltage node on the circuit board PB, thereby reducing the probability of electrostatic discharge in the display device 100. The design of electrically connecting the anti-static element 104 to the common voltage node in this embodiment can be applied to various embodiments and variant embodiments of the present invention, so it will not be repeated hereafter.

[0052] Please refer to Fig.10 and Fig.11 , Fig.10 is a cross-sectional view of a display device according to a variation of the sixth embodiment of the present invention, and Fig.11 It is a cross-sectional schematic diagram of a display device according to another variant embodiment of the sixth embodiment of the present invention. Fig.10 and Fig.11 The structure shown is Fig. 9 One of the main differences in the structure of the sixth embodiment shown is the components to which the anti-static element is connected. Fig.10 As shown, the anti-static element 104 may be a conductive layer, which may be connected to a conductor via a conductive connector 108. The connected conductor may be a conductive material CM, such as Fig.10 Alternatively, it may be a part of the housing HU in the display device 100, such as Fig.11As shown. The conductive material CM and the housing HU may include conductors, and the materials are not limited. For example, they may be metals, including copper, silver, aluminum, gold, zinc, iron, tin, steel, stainless steel, or a combination thereof. The conductive connector 108 may be conductive glue or solder, wherein the conductive glue may include silver glue or anisotropic conductive glue, but is not limited thereto. Fig.11 As shown, the housing HU may include, for example, a rolling bar portion CN and a stretching portion SP. When the rollable display panel 102 is completely retracted in the housing HU, the rolling bar portion CN and the stretching portion SP may, for example, contact each other and form a complete housing to protect the rollable display panel 102. When the user wants to use the display device 100, the rollable display panel 102 connected to the stretching portion SP may be unfolded and used by pulling the stretching portion SP, but the present invention is not limited thereto. Fig.11 As shown, the anti-static element 104 can be electrically connected to the stretching portion SP of the housing HU, for example, through a conductive connector 108. Since the housing HU may include a conductor, the anti-static element 104 can be grounded, and the static charge accumulated on the display device 100 can be eliminated, thereby improving the problem of charge accumulation in the display device 100. According to some embodiments, although not shown in the figure, the anti-static element 104 can be electrically connected to the scroll bar portion CN of the housing HU through the conductive connector 108. The scroll bar portion CN and / or the stretching portion SP of the housing HU can be a conductor. According to some embodiments, although not shown in the figure, the anti-static element 104 can be electrically connected to a scroll bar element (not shown) in the housing HU through the conductive connector 108, and the scroll bar element can include a conductive material or metal.

[0053] Please refer to Fig.12 , Fig.12 FIG. 4 is a bottom view of a display device according to a seventh embodiment of the present invention. Fig.12 The structure shown is Figure 1 One of the main differences of the structure of the first embodiment shown is the design of the anti-static element. According to this embodiment, the display device 100 may include a rollable display panel 102 and an anti-static element 104, wherein compared with the display device of the first embodiment, the anti-static element 104 in this embodiment may not be fully disposed on the rollable display panel 102. In detail, as shown in FIG. Fig.12 As shown, the rollable display panel 102 of the display device 100 may include a display area DR and a peripheral area ( Fig.12(not shown), wherein the anti-static element 104 may at least cover the display area DR of the rollable display panel 102, but is not limited thereto. It should be noted that the above-mentioned “the anti-static element 104 covers the display area DR” means that the display area DR may completely overlap with the anti-static element 104 in the direction Z, but is not limited thereto. In this embodiment, in order to allow the anti-static element 104 to cover the display area DR, the area of ​​the anti-static element 104 may be, for example, larger than the area of ​​the display area DR, but is not limited thereto. For example, Fig.12 As shown, the anti-static element 104 may have a regional area AR2, and the display area DR may have a regional area AR1, wherein the regional area AR2 may be larger than the regional area AR1, so that the display area DR may completely overlap the anti-static element 104, but it is not limited thereto. In the present embodiment, the regional area of ​​the anti-static element 104 may be defined, for example, as the maximum area of ​​the area enclosed by the anti-static element 104 located at the outermost periphery, but it is not limited thereto. Since the anti-static element 104 in the present embodiment may completely cover the display area DR, a portion of the rollable display panel 102 corresponding to the display area DR may include the anti-static element 104. When the user uses or rolls up the display device 100, since the rollable display panel 102 corresponding to the display area DR includes the anti-static element 104, the problem of static electricity accumulation in the display area DR of the rollable display panel 102 may be reduced, and the situation where the light-emitting elements or other electronic components in the display area DR are damaged due to electrostatic discharge is reduced, thereby preventing the display quality of the display device 100 from being affected by the accumulation of static electricity. It should be noted that although Fig.12 The structure shown is that the area AR2 of the anti-static element 104 is larger than the area AR1 of the display area DR, but the present invention is not limited thereto. In some embodiments, the anti-static element 104 may cover the display area DR, and the area AR2 of the anti-static element 104 may be equal to the area AR1 of the display area DR. In addition, Fig.12 The shapes of the anti-static component 104 and the display area DR are only exemplary, and the present invention is not limited thereto. In some embodiments, as long as the anti-static component 104 can cover the display area DR, the regional shapes of the anti-static component 104 and the display area DR can be determined according to different design requirements of the display device 100. The design of the anti-static component 104 in this embodiment can be applied to various embodiments and variant embodiments of the present invention, so it will not be repeated hereafter.

[0054] Please refer to Fig.13 , Fig.13 FIG. 4 is a cross-sectional schematic diagram of a display device according to an eighth embodiment of the present invention. Fig.13 The structure shown is Figure 1One of the main differences in the structure of the first embodiment shown is the design of the antistatic element. According to this embodiment, the display device 100 may include a rollable display panel 102 and an antistatic element 104, wherein the antistatic element 104 in this embodiment may have a patterned design compared to the display device of the first embodiment. In detail, the antistatic element 104 in this embodiment may, for example, include a plurality of holes VH, wherein the plurality of holes VH may, for example, pass through the antistatic element 104 to expose the non-display side NS of the rollable display panel 102, and divide the antistatic element 104 into a plurality of sub-antistatic elements (e.g., sub-antistatic element 104-1 and sub-antistatic element 104-2), but is not limited thereto. In addition, according to this embodiment, as Fig.13 As shown, each of the sub-antistatic components may have different sizes from each other, wherein the sub-antistatic component closer to the end ED1 of the rollable display panel 102 may be smaller, and the sub-antistatic component closer to the end ED2 of the rollable display panel 102 may be larger. For example, Fig.13 The sub-antistatic element 104-1 closer to the end ED1 of the rollable display panel 102 may be smaller than the sub-antistatic element 104-2 closer to the end ED2 of the rollable display panel 102, but the present invention is not limited thereto. It should be noted that the above-mentioned "size of the sub-antistatic element" may be defined as the area, length, width or other suitable size characteristics of the sub-antistatic element, and the present invention is not limited thereto. According to this embodiment, since the antistatic element 104 may include a hole VH, when the rollable display panel 102 in the display device is rolled up, the flexibility of the display device 100 may be improved. In addition, as Fig.13 As shown, when the rollable display panel 102 is rolled up, a portion of the rollable display panel 102 closer to the end ED1 may be located in the inner circle, and another portion of the rollable display panel 102 closer to the end ED2 may be located in the outer circle, so that the rollable display panel 102 closer to the end ED1 has a higher requirement for flexibility. However, since the sub-antistatic element closer to the end ED1 (e.g., the sub-antistatic element 104-1) in this embodiment may be smaller than the sub-antistatic element closer to the end ED2 (e.g., the sub-antistatic element 104-2), when the rollable display panel 102 is rolled up, the effect of the antistatic element 104 on the flexibility of the display device 100 may be reduced, thereby improving the deformation capability of the display device 100, but not limited thereto. Furthermore, since the anti-static element 104 in this embodiment may include a hole VH, when the rollable display panel 102 is rolled up, the chance of the rollable display panel 102 sliding can be reduced, so that the chance of friction between the layers is reduced, thereby reducing the accumulation of static charge in the display device 100, but the present invention is not limited thereto. It should be noted that the design of the anti-static element in this embodiment is not based on Fig.13The above is not limited to the above, and other designs that can increase the flexibility of the display device 100 can be included. For example, in some embodiments, the hole VH of the anti-static element 104 may not pass through the anti-static element 104 and expose the non-display side NS of the rollable display panel 102. For example, the hole VH can be a notch or groove on the surface of the anti-static element 104, and in some embodiments, each of the holes VH in the shape of the notch or groove can have different sizes from each other, wherein the hole VH closer to the end ED1 of the rollable display panel 102 can be larger, and the hole VH closer to the end ED2 of the rollable display panel 102 can be smaller, but it is not limited thereto. In some embodiments, the antistatic element 104 may not include the hole VH. In addition, the antistatic element 104 at different positions may have different thicknesses. For example, the antistatic element 104 closer to the end ED1 of the rollable display panel 102 may have a smaller thickness, and the antistatic element 104 closer to the end ED2 of the rollable display panel 102 may have a larger thickness, but not limited to this. In some embodiments, the antistatic element 104 disposed on the rollable display panel 102 may include a grid shape or other suitable shapes, but not limited to this. The pattern design of the antistatic element 104 in this embodiment can be applied to various embodiments and variant embodiments of the present invention, so it will not be repeated later.

[0055] Please refer to Fig.14 , Fig.14 It is a cross-sectional schematic diagram of a display device according to a variation of the eighth embodiment of the present invention. Fig.14 The structure shown is Figure 2 One of the main differences in the structure of the first embodiment shown is the design of the anti-static element. Fig.14As shown, in this variation, the rollable display panel 102 may include a substrate SB, a driving element SW, and a light-emitting unit LU, wherein the light-emitting unit LU may include, for example, an inorganic light-emitting diode, but is not limited thereto. The light-emitting unit LU may be, for example, an inorganic micro light-emitting diode, including a first semiconductor layer SC1, a second semiconductor layer SC2, and an active layer AL, wherein the first semiconductor layer SC1 may be one of a p-type semiconductor layer and an n-type semiconductor layer, and the second semiconductor layer SC2 may be the other of a p-type semiconductor layer and an n-type semiconductor layer. The active layer AL may include a multi quantum well (MQW) structure. According to this embodiment, the active layer AL may, for example, define a light-emitting region of the light-emitting unit LU. For example, the area of ​​the active layer AL may be defined as the area of ​​the light-emitting region of the light-emitting unit LU, but is not limited thereto. The light-emitting unit LU may also include a contact CT1 and a contact CT2. In addition to the above-mentioned elements and film layers, the display panel DP may also include a first bonding material CP1 and a second bonding material CP2 for bonding the light-emitting unit LU and the circuit layer CL, wherein the first semiconductor layer SC1 of the light-emitting unit LU may be connected to the first bonding material CP1 through a contact CT1, and the second semiconductor layer SC2 may be connected to the second bonding material CP2 through a contact CT2. The first bonding material CP1 and the second bonding material CP2 may be electrically connected to the first electrode E1 and the second electrode E2, respectively, wherein the first electrode E1 may be electrically connected to the driving element SW, and the operation of the light-emitting unit LU may be controlled by the driving element SW, but not limited thereto. In some embodiments, an insulating layer EN may also be provided on the surface of the light-emitting unit LU, wherein the insulating layer EN may, for example, serve as an encapsulation layer, and cover the light-emitting diode element or chip in the light-emitting unit LU to provide a protective effect, but not limited thereto. The elements or film layers such as the driving element SW and the covering layer CO in the rollable display panel 102 may refer to the above-mentioned Figure 2 As well as the first embodiment, no further details will be given.

[0056] like Fig.14As shown, according to this variation, the antistatic element may include a first antistatic element 104A, which is disposed on the non-display side NS of the rollable display panel 102; and a second antistatic element 104B, which is disposed on the display side DS of the rollable display panel 102. The second antistatic element 104B may be patterned, for example, and may be staggered with the light-emitting unit LU in the rollable display panel 102, or in other words, the second antistatic element 104B may not overlap with the light-emitting unit LU, but is not limited to this. Specifically, the second antistatic element 104B may be disposed on the covering layer CO, and the second antistatic element 104B may have a projection range PI1 (for example, a projection area on the covering layer CO) on the covering layer CO. In addition, as described above, the light-emitting area of ​​the light-emitting unit LU may be defined, for example, by the active layer AL in the light-emitting unit LU. The light-emitting area of ​​the light-emitting unit LU (or the area of ​​the active layer AL) may have a projection range PI2 (for example, a projection area on the covering layer CO) on the covering layer CO. According to this embodiment, as Fig.14 As shown, in the display direction (such as direction Z, but not limited thereto), the projection range PI1 of the second anti-static element 104B may not overlap with the projection range PI2 of the light-emitting area of ​​the light-emitting unit LU, that is, the second anti-static element 104B may not overlap with the light-emitting unit LU in the direction Z. In this way, the influence of the second anti-static element 104B on the display effect of the rollable display device 100 can be reduced. It should be noted that the definition of the light-emitting area of ​​the light-emitting unit LU in this variant embodiment is not based on Fig.14 The illustration is limited, and there may be different definitions according to the design of the light emitting unit LU.

[0057] In addition, although Fig.14 In the figure, the light-emitting area of ​​the light-emitting unit LU and the projection of the second antistatic element 104B on the covering layer CO are used to confirm whether the two overlap, but the present invention is not limited to this. In some embodiments, the comparison of whether the light-emitting area of ​​the light-emitting unit LU and the projection of the second antistatic element 104B overlap can be performed on any plane perpendicular to the display direction (for example, direction Z). For example, the above-mentioned projection range PI1 and projection range PI2 can be the projection range on the substrate SB. In this variant embodiment, the first antistatic element 104A arranged on the non-display side NS of the rollable display panel 102 can refer to the antistatic element 104 in the above-mentioned embodiments and variant embodiments, so it will not be repeated here. In addition, in some embodiments, the substrate SB of the rollable display panel 102 may include a hole VH1, which is located on the lower surface SSB of the substrate SB, but it is not limited to this. Furthermore, the first antistatic element 104A may also include a hole VH, which may be arranged corresponding to the hole VH1 of the substrate SB. The hole VH1 and / or the hole VH can, for example, increase the flexibility of the rollable display panel 102. For the convenience of explanation, Fig.14Only one hole VH1 and one hole VH are shown in the figure, but the present embodiment is not limited thereto. In the present embodiment, the substrate SB may include a plurality of holes VH1, and the first anti-static element 104A may include a plurality of holes VH. Fig.14 As shown, a portion of the substrate SB corresponding to the hole VH1 may have a thickness H2, and a portion of the substrate SB not corresponding to the hole VH1 may have a thickness H1, wherein the thickness H1 may be greater than the thickness H2, but not limited thereto. Fig.14 Only a substrate SB having a multi-layer structure is shown, but the present invention is not limited thereto. In some embodiments, the substrate SB may include a single-layer structure. Fig.14 As shown, when the substrate SB includes a multi-layer structure, the substrate SB may include a first layer S11, a second layer S12, and a third layer S13, starting from the layer farthest from the display surface DS. Fig.14 As shown, the hole VH1 can be formed by penetrating the first layer S11, but the present invention is not limited thereto. In some embodiments, although not shown in the figure, the hole VH1 can be formed by thinning but not penetrating the first layer S11. In some embodiments, although not shown in the figure, the hole VH1 can be formed by penetrating the first layer S11 and the second layer S12. In some embodiments, although not shown in the figure, the hole VH1 can be formed by penetrating the first layer S11 and the second layer S12, but retaining at least a portion of the third layer S13. In addition, although Fig.14 The first anti-static element 104A shown in the figure is arranged corresponding to the light-emitting unit LU or the light-emitting area of ​​the rollable display panel 102, but it is only exemplary and the present embodiment is not limited thereto. The first anti-static element 104A, the hole VH and the hole VH1 of the substrate SB in the present embodiment can have various arrangement modes according to different design requirements.

[0058] Please refer to Fig.15 , Fig.15 FIG. 4 is a cross-sectional schematic diagram of a display device according to a ninth embodiment of the present invention. Fig.15 The structure shown is Figure 2 One of the main differences in the structure of the first embodiment shown is the design of the anti-static element. Fig.15 As shown, the rollable display panel 102 may further include an anti-static element EL, wherein the anti-static element EL may be electrically connected to an anti-static element 104 outside the rollable display panel 102 through a contact CT3. In this embodiment, the anti-static element EL may include any element that can reduce the probability of ESD in the display device 100. For example, Fig.15The antistatic element EL in the rollable display panel 102 may, for example, include an ESD diode, but is not limited thereto. In addition, according to the present embodiment, the antistatic element EL may, for example, be disposed in the peripheral region PR of the rollable display panel 102, but is not limited thereto. Since the display device 100 in the present embodiment includes an antistatic element EL electrically connected to the antistatic element 104, the accumulation of static charge on the display device 100 can be reduced. In addition, since the antistatic element EL can be disposed in the peripheral region PR of the rollable display panel 102, the influence of the antistatic element EL on the display function of the rollable display panel 102 can be reduced. The feature that the display device 100 in the present embodiment includes the antistatic element EL can be applied to various embodiments and variant embodiments of the present invention.

[0059] In summary, the present invention provides a display device, which includes a rollable display panel and an anti-static component. When the rollable display panel is rolled up, the anti-static component may be located between a first portion and a second portion of the rollable display panel. According to some embodiments, the friction between the layers of the rollable display panel may be reduced to reduce the occurrence of electrostatic discharge in the display device, thereby improving the qualified rate of the display device.

[0060] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A display device, characterized in that: include: A display panel having a display side and a non-display side, the non-display side is opposite to the display side, and the display panel includes a first portion and a second portion; a conductive layer, disposed on the non-display side; a housing for housing the display panel; as well as a protective layer, disposed on at least one side of the display panel; Wherein, when the first part and the second part of the display panel are close to each other, the protection layer is arranged between the housing and the display panel.

2. The display device according to claim 1, wherein: The protection layer is further disposed on the display side of the display panel.

3. The display device according to claim 1, wherein: The at least one side surface includes a first side surface and a second side surface, and the first side surface is opposite to the second side surface.

4. The display device according to claim 1, wherein: The conductive layer includes a plurality of portions separated from each other.

5. The display device according to claim 1, wherein: The display panel includes a substrate, a circuit layer and a plurality of light-emitting units. The circuit layer is disposed on the substrate and is electrically connected to the plurality of light-emitting units.

6. The display device according to claim 5, characterized in that The display panel further includes an insulating layer disposed on the plurality of light-emitting units, wherein the insulating layer includes an inorganic layer, an organic layer and an inorganic layer that are alternately stacked.

7. The display device according to claim 6, wherein: The display panel further includes a touch layer disposed on the insulating layer.

8. The display device according to claim 7, characterized in that In one direction, the protection layer overlaps the substrate, the circuit layer, the plurality of light-emitting units, the insulation layer and the touch layer, and the direction is perpendicular to the thickness direction of the display panel.

9. A display device, characterized in that: include: A display panel, comprising: A substrate, comprising a first surface and a second surface, wherein the first surface is opposite to the second surface; a circuit layer disposed on the first surface; and a covering layer disposed on the first surface, wherein the circuit layer is disposed between the substrate and the covering layer; and a conductive layer disposed on the second surface; The display panel includes a first portion and a second portion, and when the display panel is folded, at least a portion of the conductive layer is disposed between the first portion and the second portion.

10. The display device according to claim 9, characterized in that The display panel further includes a light emitting unit disposed between the cover layer and the circuit layer.

11. The display device according to claim 9, characterized in that The display panel further includes a touch layer disposed between the substrate and the cover layer.

12. The display device according to claim 9, wherein: The display panel further includes an insulating layer disposed between the covering layer and the circuit layer.

13. The display device according to claim 9, wherein: The conductivity of the conductive layer is between 10 4 to 10 8 ohm -1 ·m -1 range.

14. The display device according to claim 9, wherein: The conductive layer includes a plurality of holes.

15. The display device according to claim 14, wherein: A portion of the second surface is exposed by at least one of the plurality of holes.

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