Input sensing unit
By designing an optimized input sensing unit in the display device, the problem of increasing thickness of the input device in the prior art is solved, and efficient input detection and sensing reliability are achieved.
Patent Information
- Application Number
- CN202421427959.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-06-30
- Filing Date
- 2024-06-21
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-21
AI Technical Summary
In the existing display devices, the use of touch panels and digital converters leads to an increase in the thickness of the device and is difficult to effectively solve.
An input sensing unit is designed, which includes a base layer, an insulating layer, a sensing electrode and a circuit, and the thickness of the device is reduced by optimizing the layout of the electrodes and circuits.
The function of effectively detecting user input without increasing the thickness of the display device is realized, and the sensing reliability of the input device is improved.
Smart Images

Figure CN222825884U_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This application claims priority to Korean Patent Application No. 10-2023-0085166, filed on June 30, 2023, which is incorporated herein by reference. Technical Field
[0003] The present disclosure relates to a display device, and more particularly, to an input sensing unit and a display device including the same. Background Art
[0004] Electronic devices such as smart phones, digital cameras, notebook computers, navigation devices, and smart TVs that provide images to users generally include a display device for displaying the images. The display device generates images and provides the images to the user through a display screen.
[0005] The display device may include a display panel for displaying an image, a touch panel disposed on the display panel to sense a user's touch, and a digitizer disposed under the display panel to detect a touch by a pen. The digitizer may be implemented in an electromagnetic method (or an electromagnetic resonance method).
[0006] The digitizer includes multiple coils. When the user moves the pen on the display device, the pen is driven by an AC signal to generate an oscillating magnetic field, which induces a signal in the coil. The position of the pen is detected by reading the signal induced in the coil. The digitizer detects the electromagnetic changes caused by the proximity of the pen to determine the position of the pen.
[0007] However, the use of two input devices (ie, a touch panel and a digitizer) may increase the thickness of the display device, which may not be desirable. Utility Model Content
[0008] The input sensing unit includes a substrate layer, the substrate layer includes an effective area and a peripheral area adjacent to the effective area. An insulating layer is disposed on the substrate layer. The sensing electrode is disposed in the effective area and disposed on the substrate layer. The circuit is disposed on the substrate layer and electrically connected to the sensing electrode. The sensing electrode includes: a first sensing electrode; a second sensing electrode, crossing the first sensing electrode; a first sensing electrode, adjacent to the first sensing electrode and crossing the second sensing electrode; and a second sensing electrode, adjacent to the second sensing electrode and crossing the first sensing electrode. The circuit includes: a first sensing line, electrically connected to the first sensing electrode; a second sensing line, electrically connected to the second sensing electrode via the effective area; a first sensing line, electrically connected to the first sensing electrode; and a second sensing line, electrically connected to the second sensing electrode via the effective area and disposed between the first sensing electrode and the second sensing line in the effective area.
[0009] The conductive pattern forming the second pen sensing electrode and the conductive pattern forming the second pen sensing line may be disposed between the conductive pattern forming the first sensing electrode and the conductive pattern forming the second sensing line.
[0010] At least one of the conductive patterns forming the second pen sensing electrode may be electrically connected to the ground.
[0011] Some of the conductive patterns forming the second pen sensing electrodes, which are adjacent to the first sensing electrodes, may be electrically connected to the ground.
[0012] The first sensing electrode may include a first portion extending in a first direction, a second portion spaced apart from the first portion of the first sensing electrode and extending in the first direction, and a third portion electrically connecting the first portion of the first sensing electrode and the second portion of the first sensing electrode.
[0013] The first pen sensing electrode may be disposed between a first portion of the first sensing electrode and a second portion of the first sensing electrode.
[0014] The sensing electrode may include a plurality of first pen sensing electrodes including the first pen sensing electrode, and the plurality of first pen sensing electrodes may be electrically connected to each other.
[0015] One end of each of the plurality of first pen sensing electrodes may be electrically connected to the ground.
[0016] The second sensing electrode may extend in the second direction, and the second sensing line may be electrically connected to the second sensing electrode in the active region and may extend in a first direction crossing the second direction in the active region.
[0017] The second pen sensing electrode may at least partially surround the second sensing electrode.
[0018] The second pen sensing electrode may include a first portion extending in the second direction and a second portion extending in the first direction crossing the second direction and electrically connecting the first portion at both ends of the first portion.
[0019] The circuit may include a plurality of second pen sensing lines including the second pen sensing line, and at least two second pen sensing lines of the plurality of second pen sensing lines may be electrically connected to one of the first portions of the second pen sensing electrode.
[0020] The second sensing line may be disposed between the at least two second sensing lines of the plurality of second sensing lines in the active area.
[0021] The display device includes: a display panel; and an input sensing unit, which is arranged on the display panel and includes an effective area and a peripheral area adjacent to the effective area. The input sensing unit includes: a substrate layer; an insulating layer, which is arranged on the substrate layer; a sensing electrode, which is arranged in the effective area and arranged on the substrate layer; and a line, which is arranged on the substrate layer and electrically connected to the sensing electrode. The sensing electrode includes: a first sensing electrode; a second sensing electrode, which crosses the first sensing electrode; a first sensing electrode, which is adjacent to the first sensing electrode and crosses the second sensing electrode; and a second sensing electrode, which is adjacent to the second sensing electrode and crosses the first sensing electrode. The line includes: a first sensing line, which is electrically connected to the first sensing electrode; a second sensing line, which is electrically connected to the second sensing electrode via the effective area; a first sensing line, which is electrically connected to the first sensing electrode; and a second sensing line, which is electrically connected to the second sensing electrode via the effective area and is arranged between the first sensing electrode and the second sensing line in the effective area.
[0022] The conductive pattern forming the second pen sensing electrode and the conductive pattern forming the second pen sensing line may be disposed between the conductive pattern forming the first sensing electrode and the conductive pattern forming the second sensing line.
[0023] At least one of the conductive patterns forming the second pen sensing electrode may be electrically connected to the ground.
[0024] Some of the conductive patterns forming the second pen sensing electrodes, which are adjacent to the first sensing electrodes, may be electrically connected to the ground.
[0025] The first sensing electrode may include a first portion extending in a first direction, a second portion spaced apart from the first portion of the first sensing electrode and extending in the first direction, and a third portion electrically connecting the first portion of the first sensing electrode and the second portion of the first sensing electrode, and the first pen sensing electrode may be disposed between the first portion of the first sensing electrode and the second portion of the first sensing electrode.
[0026] The sensing electrode may include a plurality of first pen sensing electrodes including the first pen sensing electrode, the plurality of first pen sensing electrodes may be electrically connected to each other, and one end of each of the plurality of first pen sensing electrodes may be electrically connected to a ground.
[0027] The second pen sensing electrode may include a first portion extending in a second direction and a second portion extending in a first direction crossing the second direction and electrically connecting the first portion at both ends of the first portion. The circuit may include a plurality of second pen sensing lines including the second pen sensing line, at least two of the plurality of second pen sensing lines may be electrically connected to one of the first portions of the second pen sensing electrode, and the second sensing line may be disposed between the at least two of the plurality of second pen sensing lines in the active region. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The accompanying drawings, which are included to provide a further understanding of the inventive concept and are incorporated in and constitute a part of this specification, illustrate embodiments of the inventive concept and together with the description serve to explain the principles of the inventive concept.
[0029] Figure 1 is a perspective view of a display device according to an embodiment of the present utility model.
[0030] Figure 2 is a perspective view illustrating a display device according to an embodiment of the present invention.
[0031] Figure 3 is a cross-sectional view of a display device according to an embodiment of the present utility model.
[0032] Figure 4 is a cross-sectional view illustrating an electronic panel according to an embodiment of the present invention.
[0033] Figure 5 is a cross-sectional view illustrating a display panel according to an embodiment of the present invention.
[0034] Figure 6 is a plan view illustrating a portion of an electronic panel according to an embodiment of the present invention.
[0035] Figure 7 is a cross-sectional view illustrating an electronic panel according to an embodiment of the present invention.
[0036] Figure 8 is a plan view illustrating an input sensing unit according to an embodiment of the present invention.
[0037] Fig. 9 It is a graphic Figure 8 2 is a plan view of an example of a first sensing electrode and a first sensing line of an input sensing unit.
[0038] Fig.10 It is a graphic Figure 8 1 is a plan view of an example of a second sensing electrode and a second sensing line of an input sensing unit.
[0039] Fig.11 It is a graphic Figure 8 1 is a plan view of an example of a first pen sensing electrode and a first pen sensing line of an input sensing unit of FIG.
[0040] Fig.12 It is a graphic Figure 8 1 is a plan view of an example of a second pen sensing electrode and a second pen sensing line of an input sensing unit of FIG.
[0041] Fig.13is a block diagram illustrating an input device according to an embodiment of the present invention.
[0042] Fig.14 The diagram is along Figure 8 A cross-sectional view of an example of a cross section taken along line II'.
[0043] Fig.15 The diagram is along Figure 8 A cross-sectional view of an example of a cross section taken along line II'. DETAILED DESCRIPTION
[0044] Hereinafter, embodiments of the present disclosure are described in detail with reference to the accompanying drawings. It should be noted that in the following description, parts necessary for understanding the operation according to the present disclosure are described, and descriptions of other parts may be omitted to avoid blurring the subject matter of the present disclosure. In addition, the present disclosure may be implemented in other forms and is not necessarily limited to the embodiments described herein.
[0045] Throughout the specification, when a part is "connected" to another part, the situation includes not only the situation that the part is "directly connected" to the other part, but also the situation that the part is "indirectly connected" to the other part and another element is inserted therebetween. The terms used in this article are used to describe specific embodiments and are not necessarily intended to limit the present disclosure. Throughout the specification, when a specific part "includes", unless otherwise stated, the situation means that the part can further include another component without excluding another component. "At least any one of X, Y and Z" and "at least any one of the group consisting of X, Y and Z" can be interpreted as any combination of one X, one Y, one Z or two or more of X, Y and Z (for example, XYZ, XY, YZ and XZ). Herein, "and / or" includes all combinations of one or more of the corresponding structures.
[0046] In this article, terms such as first and second can be used to describe various components, but these components are not necessarily limited to these terms. These terms are used to distinguish one component from another component. Therefore, a first component can refer to a second component within a range without departing from the scope disclosed in this article.
[0047] Spatially relative terms such as "under" and "on" may be used for descriptive purposes, thereby describing the relationship between one element or feature and another (other) element or feature as shown in the drawings. In addition to the orientation depicted in the drawings, spatially relative terms are intended to include other orientations in use, operation and / or manufacture. For example, when the device shown in the drawings is turned over, the element depicted as being positioned "under" other elements or features is oriented to be positioned "on" the other elements or features. Therefore, in an embodiment, the term "under" may include two orientations of upper and lower. In addition, the device may be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and the spatially relative terms used in this article are therefore interpreted accordingly.
[0048] Figure 1 is a perspective view of a display device according to an embodiment of the present utility model.
[0049] Reference Figure 1 , the display device DD can detect the first input performed by the input device PN. The display device DD can be a device activated according to the electrical signal. For example, the display device DD can be a mobile phone, a tablet computer, a car navigation system, a game console, or a wearable device, but the utility model is not necessarily limited thereto. Figure 1 A case where the display device DD is a mobile phone is shown as an example.
[0050] In the display device DD, an active area 1000A and a peripheral area 1000NA may be defined. The display device DD may display an image toward a third direction DR3 through the active area 1000A. The active area 1000A may include a surface defined by a first direction DR1 and a second direction DR2 intersecting the third direction DR3. The peripheral area 1000NA may at least partially surround the periphery of the active area 1000A.
[0051] The display device DD may detect an input applied from the outside of the display device DD. The input may include various types of external inputs such as a part of a user's body, light, heat, or pressure. The external input may be referred to as a second input.
[0052] Figure 1 The display device DD shown in the figure can detect inputs made by the user's touch and inputs made by the input device PN. The input device PN may mean a device other than the user's body. The input made by the input device PN may be referred to as a first input. For example, the input device PN may be an active electrostatic (AES) pen, an electromagnetic resonance (EMR) pen, a stylus pen, a touch pen, or an electronic pen. In the following, the case where the input device PN is an electromagnetic resonance type pen will be described as an example.
[0053] Figure 2 1 is a perspective view illustrating a display device according to an embodiment of the present invention. Figure 2 The same reference numerals may be used for Figure 1 The components described are identical components, and to the extent an element is not described herein, it should be understood to be at least as similar as a corresponding element that has been described elsewhere within the present disclosure.
[0054] Figure 2 1 shows a state in which the display device DD-1 is folded at a predetermined angle. Figure 2 In the display device DD-1, an active area 1000A-1 and a peripheral area 1000NA-1 may be defined. In the unfolded state of the display device DD-1, the active area 1000A-1 may include a plane defined by the first direction DR1 and the second direction DR2.
[0055] The active area 1000A-1 may include a first area 1000A1, a second area 1000A2, and a third area 1000A3. The first area 1000A1, the second area 1000A2, and the third area 1000A3 may be sequentially defined in the second direction DR2. The second area 1000A2 may be bent about a folding axis 1000FX extending along the first direction DR1. Accordingly, the first area 1000A1 and the third area 1000A3 may be referred to as non-folding areas, and the second area 1000A2 may be referred to as a folding area.
[0056] When the display device DD-1 is folded, the first area 1000A1 and the third area 1000A3 may face each other. Accordingly, in a fully folded state, the active area 1000A-1 may not be exposed to the outside, which may be referred to as an inner fold. However, this is an example, and the operation of the display device DD-1 according to an embodiment of the present invention is not necessarily limited thereto.
[0057] For example, when the display device DD-1 according to the embodiment of the present invention is folded, the first area 1000A1 and the third area 1000A3 may face each other. Accordingly, in the folded state, the active area 1000A-1 may be exposed to the outside, which may be referred to as an external fold.
[0058] The display device DD-1 may perform an inner folding operation or an outer folding operation. Alternatively, the display device DD-1 may perform both an inner folding operation and an outer folding operation. In this case, the same area (e.g., the second area 1000A2) of the display device DD-1 may be alternately folded inner and outer.
[0059] exist Figure 2In the embodiment, one folding region and two non-folding regions are shown as an example, but the number of folding regions and non-folding regions is not necessarily limited thereto. For example, the display device DD-1 may include a plurality of non-folding regions and a plurality of folding regions disposed between adjacent non-folding regions.
[0060] Figure 2 The case where the folding axis 1000FX extends in the first direction DR1 is shown as an example, but the present invention is not necessarily limited thereto. For example, the folding axis 1000FX may extend in a direction parallel to the second direction DR2. In this case, the first region 1000A1, the second region 1000A2, and the third region 1000A3 may be sequentially arranged along the first direction DR1.
[0061] Figure 3 is a cross-sectional view of a display device according to an embodiment of the present utility model.
[0062] Reference Figure 3 The display device DD may include an electronic panel EP, an impact absorbing layer ISL, a panel protection layer PPL, a first conductive sheet CTS1, a second conductive sheet CTS2, a window WIN, a window protection layer WP, a hard coating layer HC, and first to sixth adhesive layers AL1 to AL6.
[0063] The electronic panel EP can display an image, detect the first input and the second input, and reduce the reflectivity of external light. The electronic panel EP may include a display panel, an input sensing unit, and an anti-reflection layer. Figure 4 The construction of the electronic panel EP is described.
[0064] The impact absorbing layer ISL may be disposed on the electronic panel EP. The impact absorbing layer ISL may protect the electronic panel EP by absorbing an external impact applied from the top of the display device DD toward the electronic panel EP. The impact absorbing layer ISL may be a stretched film.
[0065] The impact absorbing layer ISL may include a flexible plastic material. The flexible plastic material may be a synthetic resin film. For example, the impact absorbing layer ISL may include a flexible plastic material such as polyimide (PI) or polyethylene terephthalate (PET).
[0066] The panel protection layer PPL may be disposed under the electronic panel EP. The panel protection layer PPL may protect the lower portion of the electronic panel EP. The panel protection layer PPL may include a flexible plastic material. For example, the panel protection layer PPL may include polyethylene terephthalate (PET).
[0067] The first conductive sheet CTS1 may be disposed under the panel protection layer PPL. The second conductive sheet CTS2 may be disposed under the first conductive sheet CTS1. The first conductive sheet CTS1 and the second conductive sheet CTS2 may include metal.
[0068] The first conductive sheet CTS1 may include a ferromagnetic material. For example, the first conductive sheet CTS1 may be a ferrite sheet including ferrite. The second conductive sheet CTS2 may include a diamagnetic material. For example, the second conductive sheet CTS2 may include copper. The first conductive sheet CTS1 and the second conductive sheet CTS2 may shield an external magnetic field applied from the bottom of the display device DD to the electronic panel EP.
[0069] The window WIN may be disposed on the impact absorbing layer ISL. The window WIN may protect the electronic panel EP from scratches. The window WIN may have an optically transparent property. The window WIN may include glass. However, the present invention is not necessarily limited thereto, and the window WIN may include a synthetic resin film.
[0070] The window WIN may have a multi-layer structure or a single-layer structure. For example, the window WIN may include a plurality of synthetic resin films bonded to each other by an adhesive, or may include a glass substrate and a synthetic resin film bonded to each other by an adhesive.
[0071] The window protection layer WP may be disposed on the window WIN. The window protection layer WP may include a flexible plastic material such as polyimide or polyethylene terephthalate. The hard coating layer HC may be disposed on an upper surface of the window protection layer WP.
[0072] The printing layer PIT may be disposed on the lower surface of the window protection layer WP. The printing layer PIT may have a black color, but the color of the printing layer PIT is not necessarily limited thereto. The printing layer PIT may be adjacent to an edge of the window protection layer WP. The printing layer PIT may overlap the non-display area NDA.
[0073] The first adhesive layer AL1 may be disposed between the window protection layer WP and the window WIN. The window protection layer WP and the window WIN may be bonded to each other through the first adhesive layer AL1. The first adhesive layer AL1 may cover the printed layer PIT.
[0074] The second adhesive layer AL2 may be disposed between the window WIN and the shock absorbing layer ISL. The window WIN and the shock absorbing layer ISL may be bonded to each other through the second adhesive layer AL2.
[0075] The third adhesive layer AL3 may be disposed between the impact absorbing layer ISL and the electronic panel EP. The impact absorbing layer ISL and the electronic panel EP may be bonded to each other through the third adhesive layer AL3.
[0076] The fourth adhesive layer AL4 may be disposed between the electronic panel EP and the panel protection layer PPL. The electronic panel EP and the panel protection layer PPL may be bonded to each other through the fourth adhesive layer AL4.
[0077] The fifth adhesive layer AL5 may be disposed between the panel protection layer PPL and the first conductive sheet CTS1. The panel protection layer PPL and the first conductive sheet CTS1 may be bonded to each other through the fifth adhesive layer AL5.
[0078] The sixth adhesive layer AL6 may be disposed between the first conductive sheet CTS1 and the second conductive sheet CTS2. The first conductive sheet CTS1 and the second conductive sheet CTS2 may be bonded to each other through the sixth adhesive layer AL6.
[0079] The first to sixth adhesive layers AL1 to AL6 may include a pressure sensitive adhesive (PSA) or an optically clear adhesive (OCA), but the type of adhesive is not necessarily limited thereto.
[0080] Figure 4 is a cross-sectional view illustrating an electronic panel according to an embodiment of the present invention.
[0081] Reference Figure 4 The electronic panel EP may include a display panel DP, an input sensing unit ISP disposed on the display panel DP, and an anti-reflection layer RPL disposed on the input sensing unit ISP. The display panel DP may be a flexible display panel. For example, the display panel DP may include a flexible substrate and a plurality of elements disposed on the flexible substrate.
[0082] The display panel DP according to the embodiment of the utility model may be a light-emitting display panel, and is not necessarily limited thereto. For example, the display panel DP may be an organic light-emitting diode (OLED) display panel, a quantum dot display panel, a micron LED display panel, or a nano LED display panel. The light-emitting layer of the organic light-emitting diode display panel may include an organic light-emitting material. The light-emitting layer of the quantum dot display panel may include quantum dots and / or quantum rods, etc. The micron LED display panel may include micron LEDs. The nano LED display panel may include nano LEDs. Hereinafter, a case where the display panel DP is an organic light-emitting diode display panel will be described.
[0083] The input sensing unit ISP may include a plurality of pen sensing electrodes P-SE1 and P-SE2 (see the following) for sensing the above-mentioned first input using an electromagnetic method (or an electromagnetic resonance method). Figure 8 The input sensing unit ISP may include a plurality of sensing electrodes SE1 and SE2 (as shown below) for sensing the second input in a capacitive manner. Figure 8). The input sensing unit ISP may be directly formed on the display panel DP during the manufacturing process of the electronic panel EP.
[0084] The anti-reflection layer RPL may be disposed on the input sensing unit ISP. The anti-reflection layer RPL may be directly formed on the input sensing unit ISP in the manufacturing process of the electronic panel EP. The anti-reflection layer RPL may be an external light anti-reflection film. The anti-reflection layer RPL may reduce the reflectivity of external light incident from the top of the display device DD toward the display panel DP.
[0085] As an example, the input sensing unit ISP may be directly formed on the display panel DP and the anti-reflection layer RPL may be directly formed on the input sensing unit ISP, but the embodiments of the present invention are not necessarily limited thereto. For example, the input sensing unit ISP may be manufactured separately and attached to the display panel DP through an adhesive layer. In addition, the anti-reflection layer RPL may be manufactured separately and attached to the input sensing unit ISP through an adhesive layer.
[0086] Figure 5 is a cross-sectional view illustrating a display panel according to an embodiment of the present invention.
[0087] Reference Figure 5 The display panel DP may include a substrate SUB, a circuit element layer DP-CL disposed on the substrate SUB, a display element layer DP-OLED disposed on the circuit element layer DP-CL, and a thin film encapsulation layer TFE disposed on the display element layer DP-OLED.
[0088] The substrate SUB may include a display area DA and a non-display area NDA at least partially surrounding the display area DA. The substrate SUB may include a flexible plastic material such as polyimide (PI).
[0089] The substrate SUB may provide a base surface on which the circuit element layer DP-CL is disposed. The substrate SUB may be a glass substrate, a metal substrate, or a polymer substrate. However, the embodiment is not necessarily limited thereto, and the substrate SUB may be an inorganic layer, an organic layer, or a composite material layer.
[0090] The substrate SUB may have a multi-layer structure. For example, the substrate SUB may include a first synthetic resin layer, a silicon oxide (SiO x ) layer, an amorphous silicon (a-Si) layer disposed on the silicon oxide layer, and a second synthetic resin layer disposed on the amorphous silicon layer. The silicon oxide layer and the amorphous silicon layer may be referred to as a base barrier layer.
[0091] Each of the first synthetic resin layer and the second synthetic resin layer may include a polyimide resin. In addition, each of the first synthetic resin layer and the second synthetic resin layer may include an acrylate resin, a methacrylate resin, a polyisoprene resin, a vinyl resin, an epoxy resin, a urethane resin, a cellulose resin, a siloxane resin, a polyamide resin and / or a perylene resin. On the other hand, in this specification, a "--" type resin may mean a functional group containing "--", wherein "--" is any given substance.
[0092] The circuit element layer DP-CL may be disposed on the substrate SUB. The circuit element layer DP-CL may include an insulating layer, a semiconductor pattern, a conductive pattern, a signal line, etc. The insulating layer, the semiconductor layer, and the conductive layer may be formed on the substrate SUB by a coating method or a deposition method, etc. Thereafter, the insulating layer, the semiconductor layer, and the conductive layer may be selectively patterned by a plurality of photolithography processes. Accordingly, the semiconductor pattern, the conductive pattern, and the signal line included in the circuit element layer DP-CL may be formed.
[0093] The display element layer DP-OLED may be disposed on the circuit element layer DP-CL. The display element layer DP-OLED may be disposed in the display area DA. A plurality of pixels PX (see Figure 6 ) may be disposed in the display area DA. Each of the pixels PX may include a transistor disposed in the circuit element layer DP-CL and a light emitting element connected to the transistor and disposed in the display element layer DP-OLED.
[0094] The thin film encapsulation layer TFE may be disposed on the circuit element layer DP-CL and may cover the display element layer DP-OLED. The thin film encapsulation layer TFE may include an inorganic layer and an organic layer between the inorganic layers. The inorganic layer may protect the pixel PX from moisture or oxygen. The organic layer may protect the pixel PX from foreign matter such as dust particles.
[0095] Figure 6 is a plan view illustrating a portion of an electronic panel according to an embodiment of the present invention.
[0096] Reference Figure 6 , Electronic Panel EP (see Figure 4 ) may include a display panel DP, a scan driver SDV, a data driver DDV, a light emitting driver EDV and a plurality of first pads PD1.
[0097] The display panel DP may have a rectangular shape having long sides extending in the first direction DR1 and short sides extending in the second direction DR2, but the shape of the display panel DP is not necessarily limited thereto. The display panel DP may include a display area DA and a non-display area NDA at least partially surrounding the display area DA.
[0098] The display panel DP may include a plurality of pixels PX, a plurality of scan lines SL1 to SLm, a plurality of data lines DL1 to DLn, a plurality of emission lines EL1 to ELm, first and second control lines CSL1 and CSL2, first and second power lines PL1 and PL2, and a connection line CNL, where m and n may be positive integers.
[0099] The pixel PX may be disposed in the display area DA. The scanning driver SDV and the light emitting driver EDV may be disposed in the non-display area NDA adjacent to the long sides of the display panel DP, respectively. The data driver DDV may be disposed in the non-display area NDA adjacent to one of the short sides of the display panel DP. In a plan view, the data driver DDV may be adjacent to the lower end of the display panel DP.
[0100] The scan lines SL1 to SLm may extend in the second direction DR2 and be electrically connected to the pixels PX and the scan driver SDV. The data lines DL1 to DLn may extend in the first direction DR1 and be electrically connected to the pixels PX and the data driver DDV. The emission lines EL1 to ELm may extend in the second direction DR2 and be electrically connected to the pixels PX and the light emitting driver EDV.
[0101] The first power line PL1 may extend in the first direction DR1 and be disposed in the non-display area NDA. The first power line PL1 may be disposed between the display area DA and the light emitting driver EDV.
[0102] The connection line CNL may extend in the second direction DR2 and be arranged in the first direction DR1 to be electrically connected to the first power line PL1 and the pixel PX. The first voltage may be applied to the pixel PX through the first power line PL1 and the connection line CNL electrically connected to each other.
[0103] The second power line PL2 may be disposed in the non-display area NDA and may extend along a long side of the display panel DP and another short side of the display panel DP where the data driver DDV is not disposed. The second power line PL2 may be disposed outside the scan driver SDV and the light emitting driver EDV.
[0104] The second power line PL2 may extend toward the display area DA and be electrically connected to the pixel PX. A second voltage having a level lower than that of the first voltage may be applied to the pixel PX through the second power line PL2.
[0105] The first control line CSL1 may be electrically connected to the scan driver SDV and may extend toward the lower end of the display panel DP. The second control line CSL2 may be electrically connected to the light emitting driver EDV and may extend toward the lower end of the display panel DP. The data driver DDV may be disposed between the first control line CSL1 and the second control line CSL2.
[0106] The first pad PD1 may be disposed in the non-display area NDA adjacent to the lower end of the display panel DP and may be closer to the lower end of the display panel DP than the data driver DDV. The data driver DDV, the first power line PL1, the second power line PL2, the first control line CSL1, and the second control line CSL2 may be electrically connected to the first pad PD1. The data lines DL1 to DLn may be electrically connected to the data driver DDV, and the data driver DDV may be electrically connected to the first pad PD1 corresponding to the data lines DL1 to DLn.
[0107] The display device DD may further include a timing controller for controlling the operation of the scan driver SDV, the data driver DDV, and the light emitting driver EDV, and a voltage generator for generating a first voltage and a second voltage. The timing controller and the voltage generator may be electrically connected to the first pad PD1 through a printed circuit board. In an embodiment, the timing controller and / or the voltage generator may be integrated with the data driver DDV.
[0108] The scan driver SDV may generate a plurality of scan signals, and the scan signals may be applied to the pixels PX through the scan lines SL1 to SLm. The data driver DDV may generate a plurality of data voltages, and the data voltages may be applied to the pixels PX through the data lines DL1 to DLn. The light emitting driver EDV may generate a plurality of emission signals, and the emission signals may be applied to the pixels PX through the emission lines EL1 to ELm.
[0109] The pixel PX may receive a data voltage in response to the scan signal, and may display an image by emitting light having brightness corresponding to the data voltage in response to the emission signal.
[0110] Figure 7 is a cross-sectional view illustrating an electronic panel according to an embodiment of the present invention.
[0111] Reference Figure 7 The pixel PX may include a transistor TR and a light emitting element OLED. The light emitting element OLED may include a first electrode AE (or anode), a second electrode CE (or cathode), a hole control layer HCL, an electron control layer ECL and a light emitting layer EML.
[0112] The transistor TR and the light emitting element OLED may be disposed on the substrate SUB. Although one transistor TR is shown as an example, the pixel PX may actually include a plurality of transistors for driving the light emitting element OLED and at least one capacitor.
[0113] The display area DA may include an emission area LA corresponding to each of the pixels PX and a non-emission area NLA at least partially surrounding the emission area LA. The light emitting element OLED may be disposed in the emission area LA.
[0114] The buffer layer BFL may be disposed on the substrate SUB, and the buffer layer BFL may be an inorganic layer. The semiconductor pattern may be disposed on the buffer layer BFL. The semiconductor pattern may include polycrystalline silicon, amorphous silicon, or a metal oxide semiconductor.
[0115] The semiconductor pattern may be doped with an N-type dopant or a P-type dopant. The semiconductor pattern may include a high-doping region and a low-doping region. The conductivity of the high-doping region may be greater than the conductivity of the low-doping region, and may substantially function as a source and a drain of the transistor TR. The low-doping region may substantially correspond to an active region (or channel) of the transistor TR.
[0116] The source S, active area A, and drain D of the transistor TR may be formed of a semiconductor pattern. A first insulating layer INS1 may be disposed on the semiconductor pattern. A gate G of the transistor TR may be disposed on the first insulating layer INS1. A second insulating layer INS2 may be disposed on the gate G. A third insulating layer INS3 may be disposed on the second insulating layer INS2.
[0117] The connection electrode CNE may include a first connection electrode CNE1 and a second connection electrode CNE2 to connect the transistor TR and the light emitting element OLED. The first connection electrode CNE1 may be disposed on the third insulating layer INS3 and electrically connected to the drain electrode D through a first contact hole CH1 defined in the first to third insulating layers INS1 to INS3.
[0118] The fourth insulating layer INS4 may be disposed on the first connection electrode CNE1. The fifth insulating layer INS5 may be disposed on the fourth insulating layer INS4. The second connection electrode CNE2 may be disposed on the fifth insulating layer INS5. The second connection electrode CNE2 may be electrically connected to the first connection electrode CNE1 through a second contact hole CH2 defined in the fourth insulating layer INS4 and the fifth insulating layer INS5.
[0119] The sixth insulating layer INS6 may be disposed on the second connection electrode CNE2. The layers from the buffer layer BFL to the sixth insulating layer INS6 may be circuit element layers DP-CL. The first to sixth insulating layers INS1 to INS6 may be inorganic layers or organic layers.
[0120] The first electrode AE may be disposed on the sixth insulating layer INS6. The first electrode AE may be electrically connected to the second connection electrode CNE2 through a third contact hole CH3 defined in the sixth insulating layer INS6. A pixel defining layer PDL having an opening PX_OP for exposing a predetermined portion of the first electrode AE may be disposed on the first electrode AE and the sixth insulating layer INS6.
[0121] The hole control layer HCL may be disposed on the first electrode AE and the pixel defining layer PDL. The hole control layer HCL may include a hole transport layer and a hole injection layer.
[0122] The light emitting layer EML may be disposed on the hole control layer HCL. The light emitting layer EML may be disposed in a region corresponding to the opening PX_OP. The light emitting layer EML may include an organic material and / or an inorganic material. The light emitting layer EML may generate any one of red light, green light, and blue light.
[0123] The electron control layer ECL may be disposed on the light emitting layer EML and the hole control layer HCL. The electron control layer ECL may include an electron transport layer and an electron injection layer. The hole control layer HCL and the electron control layer ECL may be commonly disposed in the emission area LA and the non-emission area NLA.
[0124] The second electrode CE may be disposed on the electronic control layer ECL. The second electrode CE may be commonly disposed throughout each pixel PX. The layer in which the light emitting element OLED is disposed may be a display element layer DP-OLED.
[0125] The thin film encapsulation layer TFE may be disposed on the second electrode CE and may cover the pixel PX. The thin film encapsulation layer TFE may include a first encapsulation layer EN1 disposed on the second electrode CE, a second encapsulation layer EN2 disposed on the first encapsulation layer EN1, and a third encapsulation layer EN3 disposed on the second encapsulation layer EN2.
[0126] The first encapsulation layer EN1 and the third encapsulation layer EN3 may include an inorganic insulating layer and may protect the pixel PX from moisture or oxygen. The second encapsulation layer EN2 may include an organic insulating layer and may protect the pixel PX from foreign substances such as dust particles.
[0127] A first voltage may be applied to the first electrode AE through the transistor TR, and a second voltage having a level lower than that of the first voltage may be applied to the second electrode CE. Holes and electrons injected into the light emitting layer EML may be recombined with each other to form excitons, and the light emitting element OLED may emit light while the excitons transition to a ground state.
[0128] The input sensing unit ISP may be disposed on the thin film encapsulation layer TFE. The input sensing unit ISP may be directly manufactured on the upper surface of the thin film encapsulation layer TFE.
[0129] The base layer BSL may be disposed on the thin film encapsulation layer TFE. The base layer BSL may include an inorganic insulating layer. At least one inorganic insulating layer may be provided as the base layer BSL on the thin film encapsulation layer TFE.
[0130] The input sensing unit ISP may include a first conductive pattern CTL1 and a second conductive pattern CTL2 disposed on the first conductive pattern CTL1. The first conductive pattern CTL1 may be disposed on the base layer BSL. The insulating layer TINS may be disposed on the base layer BSL and may cover the first conductive pattern CTL1. The insulating layer TINS may include an inorganic insulating layer or an organic insulating layer. The second conductive pattern CTL2 may be disposed on the insulating layer TINS.
[0131] The first and second conductive patterns CTL1 and CTL2 may overlap the non-emission area NLA. The first and second conductive patterns CTL1 and CTL2 may be disposed in the non-emission area NLA between the emission areas LA and have a mesh shape.
[0132] The first conductive pattern CTL1 and the second conductive pattern CTL2 may form a sensing electrode and a pen sensing electrode of the input sensing unit ISP. For example, the first conductive pattern CTL1 and the second conductive pattern CTL2 having a mesh shape may be separated from each other in a predetermined area to form a sensing electrode and a pen sensing electrode. A portion of the second conductive pattern CTL2 may be electrically connected to the first conductive pattern CTL1.
[0133] The anti-reflection layer RPL may be disposed on the second conductive pattern CTL2. The anti-reflection layer RPL may include a black matrix BM and a plurality of color filters CF. The black matrix BM may overlap the non-emission area NLA, and the color filters CF may overlap the emission areas LA, respectively.
[0134] The black matrix BM may be disposed on the insulating layer TINS and may cover the second conductive pattern CTL2. An opening B_OP overlapping the emission area LA and the opening PX_OP may be defined in the black matrix BM. The black matrix BM may absorb and block light. The width of the opening B_OP may be greater than the width of the opening PX_OP. In an embodiment, an anti-reflection layer RPL may be used by overlapping other types of color filters CF instead of the black matrix BM.
[0135] The color filter CF may be disposed on the insulating layer TINS and the black matrix BM. The color filter CF may be disposed in the openings B_OP, respectively. The planarization insulating layer PINS may be disposed on the color filter CF. The planarization insulating layer PIN may provide a flat upper surface. The planarization insulating layer PINS may include an organic insulating layer.
[0136] When external light incident toward the display panel DP is reflected by the display panel DP like a mirror and reflected back to the user again, the user may visually recognize the external light. In order to prevent this phenomenon, as an example, the anti-reflection layer RPL may include a plurality of color filters CF having the same color as the color of the light emitted by the pixel PX of the display panel DP. The color filter CF may filter the external light into the same color as the color of the light emitted by the pixel PX. In this case, the external light may not be visually recognized by the user.
[0137] Figure 8 is a plan view illustrating an input sensing unit according to an embodiment of the present invention. Fig. 9 It is a graphic Figure 8 2 is a plan view of an example of a first sensing electrode and a first sensing line of an input sensing unit. Fig.10 It is a graphic Figure 8 1 is a plan view of an example of a second sensing electrode and a second sensing line of an input sensing unit. Fig.11 It is a graphic Figure 8 1 is a plan view of an example of a first pen sensing electrode and a first pen sensing line of an input sensing unit of FIG. Fig.12 It is a graphic Figure 8 1 is a plan view of an example of a second pen sensing electrode and a second pen sensing line of an input sensing unit of FIG. Fig.13 is a block diagram illustrating an input device according to an embodiment of the present invention.
[0138] Reference Figures 8 to 12 , the display device may include an input sensing unit ISP and a touch circuit TC driving the input sensing unit ISP.
[0139] The input sensing unit ISP may include a base layer BSL, sensing electrodes SE1, SE2, P-SE1 and P-SE2, lines TL, RL, PSL1 and PSL2 electrically connected to the sensing electrodes SE1, SE2, P-SE1 and P-SE2, and pads PD2, PD3, PD4 and PD5 electrically connecting the lines TL, RL, PSL1 and PSL2 to the touch circuit TC.
[0140] The active area AA and the peripheral area NAA adjacent to the active area AA may be defined in the base layer BSL. In a plan view, the active area AA may be adjacent to the display area DA (see FIG. Figure 6) and the peripheral area NAA may overlap with the non-display area NDA (see Figure 6 )overlapping.
[0141] The sensing electrodes SE1, SE2, P-SE1, and P-SE2 may be disposed in the active area AA, and the second to fifth pads PD2, PD3, PD4, and PD5 may be disposed in the peripheral area NAA. In a plan view, the second to fifth pads PD2, PD3, PD4, and PD5 may be adjacent to the lower end of the input sensing unit ISP. However, the present invention is not necessarily limited to the position of the second to fifth pads PD2, PD3, PD4, and PD5.
[0142] Reference Figure 8 and Fig. 9 , the first sensing electrode SE1 may extend in the first direction DR1 and be arranged in the second direction DR2. The first sensing electrode SE1 may include a sensing unit SE1_SC and a connecting electrode SE1_CE. The sensing unit SE1_SC may have an area larger than that of the connecting electrode SE1_CE. The touch circuit TC may calculate the coordinates of the first input and the second input based on the sensing unit SE1_SC. The connecting electrode SE1_CE may connect the sensing units SE1_SC. The connecting electrode SE1_CE of the first sensing electrode SE1 may include a connecting pattern having a bridge shape.
[0143] The first sensing electrode SE1 may include a first portion SE1-1 extending in the first direction DR1. The first sensing electrode SE1 may include a second portion SE1-2 spaced apart from the first portion SE1-1 and extending in the first direction DR1. The first sensing electrode SE1 may include a third portion SE1-3 electrically connecting the first portion SE1-1 and the second portion SE1-2. The first pen sensing electrode P-SE1 may be disposed between the first portion SE1-1 and the second portion SE1-2.
[0144] The first sensing line TL may electrically connect the first sensing electrode SE1 to the second pad PD2. The second pad PD2 may be electrically connected to the touch circuit TC.
[0145] Reference Figure 8 and Fig.10, the second sensing electrode SE2 may extend in the second direction DR2 crossing the first direction DR1, and be arranged in the first direction DR1. The second sensing electrode SE2 may cross the first sensing electrode SE1. The second sensing electrode SE2 may include a sensing unit SE2_SC and a connecting electrode SE2_CE. The sensing unit SE2_SC may have an area larger than that of the connecting electrode SE2_CE. The touch circuit TC may calculate the coordinates of the first input and the second input based on the sensing unit SE2_SC. The connecting electrode SE2_CE may connect the sensing units SE2_SC. The connecting electrode SE2_CE of the second sensing electrode SE2 may include a connecting pattern having a bridge shape.
[0146] The second sensing line RL may electrically connect the second sensing electrode SE2 to the third pad PD3. The third pad PD3 may be electrically connected to the touch circuit TC.
[0147] The second sensing line RL may be electrically connected to the second sensing electrode SE2 via the active area AA. For example, the second sensing line RL may be electrically connected to the second sensing electrode SE2 in the active area AA, and may extend in the first direction DR1 in the active area AA. For example, the second sensing line RL may overlap at least part of the sensing electrodes SE1, SE2, P-SE1, and P-SE2. For example, each of the second sensing lines RL may be electrically connected to the sensing unit SE2_SC of the second sensing electrode SE2 in a different row.
[0148] When the second sensing line RL is electrically connected to one end of the second sensing electrode SE2 via the peripheral area NAA, the peripheral area NAA for the second sensing line RL may be required. For example, since the second sensing line RL is electrically connected to the second sensing electrode SE2 via the active area AA, the dead zone may be reduced.
[0149] Reference Figure 8 and Fig.11 , the first pen sensing electrodes P-SE1 may extend in the first direction DR1 and be arranged in the second direction DR2. The first pen sensing electrodes P-SE1 may be electrically connected to each other. For example, one end of each of the first pen sensing electrodes P-SE1 may be electrically connected to the ground GND. The first pen sensing electrode P-SE1 may be adjacent to the first sensing electrode SE1 and cross the second sensing electrode SE2.
[0150] Although not in Fig.11 , but at least one of the first pen sensing electrodes P-SE1 may be disposed in the peripheral area NAA. In this case, the charging sensitivity and sensing reliability of the input device that inputs the first input to the active area AA adjacent to the peripheral area NAA can be improved.
[0151] The first pen sensing line PSL1 may electrically connect the first pen sensing electrode P-SE1 to the fourth pad PD4. The fourth pad PD4 may be electrically connected to the touch circuit TC.
[0152] Reference Figure 8 and Fig.12 , the second pen sensing electrode P-SE2 may at least partially surround the second sensing electrode SE2. The second pen sensing electrode P-SE2 may include a first portion P-SE2-1 extending in the second direction DR2 and a second portion P-SE2-2 extending in the first direction DR1 crossing the second direction DR2 and electrically connecting the first portion P-SE2-1 at both ends of the first portion P-SE2-1. For example, the first portion P-SE2-1 may extend in the second direction DR2 crossing the first direction DR1 and be arranged in the first direction DR1. The second pen sensing electrode P-SE2 may be adjacent to the second sensing electrode SE2 and cross the first sensing electrode SE1.
[0153] The second pen sensing line PSL2 may electrically connect the second pen sensing electrode P-SE2 to the fifth pad PD5. The fifth pad PD5 may be electrically connected to the touch circuit TC.
[0154] The second sensing line PSL2 may be electrically connected to the second sensing electrode P-SE2 via the active area AA. For example, the second sensing line PSL2 may be electrically connected to the second sensing electrode P-SE2 in the active area AA and may extend in the first direction DR1 in the active area AA. For example, the second sensing line PSL2 may overlap at least a portion of the sensing electrodes SE1, SE2, P-SE1, and P-SE2. For example, the second sensing line PSL2 may be electrically connected to the first portion P-SE2-1 of the second sensing electrode P-SE2 in a different row.
[0155] When the second sensing line PSL2 is electrically connected to one end of the second sensing electrode P-SE2 via the peripheral area NAA, the peripheral area NAA for the second sensing line PSL2 may be required. For example, since the second sensing line PSL2 is electrically connected to the second sensing electrode P-SE2 via the active area AA, the dead zone can be reduced.
[0156] Reference Figure 8 , Fig.10 and Fig.12, at least two of the second sensing lines PSL2 may be electrically connected to one of the first portions P-SE2-1 of the second sensing electrode P-SE2. The second sensing line RL may be disposed between the at least two of the second sensing lines PSL2 in the active area AA. Accordingly, the coupling between the conductive pattern forming the second sensing line RL and the conductive pattern forming the first sensing electrode SE1 can be minimized. A detailed description thereof will be provided later.
[0157] In the present embodiment, the case where each of the second pen sensing lines PSL2 is electrically connected to a different fifth pad PD5 is shown as an example, but the present invention is not necessarily limited thereto. For example, the second pen sensing lines PSL2 electrically connected to the first portion P-SE2-1 of the same second pen sensing electrode P-SE2 may be electrically connected to the same fifth pad PD5.
[0158] Reference Figures 8 to 13 For example, the input sensing unit ISP may be driven in a time division manner and driven in a first sensing period and a second sensing period. The first sensing period and the second sensing period may be repeated.
[0159] During the first sensing period, the first sensing electrode SE1 and the second sensing electrode SE2 are driven so that a second input performed by a user's touch can be sensed. For example, in the first sensing period, the input sensing unit ISP may be driven in a mutual capacitance method. For example, in the first sensing period, the touch circuit TC may output a first touch drive signal to the first sensing electrode SE1 and receive a first touch sensing signal from the second sensing electrode SE2. Capacitance may be formed between the first sensing electrode SE1 and the second sensing electrode SE2. When the second input is input to the input sensing unit ISP, the capacitance may change. The touch circuit TC may sense the second input based on the capacitance change.
[0160] During the second sensing period, the first input through the input device PN may be sensed by the first and second pen sensing electrodes P-SE1 and P-SE2. The input device PN may include a housing PNH, a pen tip PNT, a resonance circuit unit PN100, a control unit PN200, and a power supply unit PN300.
[0161] The housing PNH may have a pen shape. An accommodation space may be formed inside the housing PNH. The resonance circuit unit PN100, the control unit PN200, and the power supply unit PN300 may be accommodated in the accommodation space defined inside the housing PNH.
[0162] The pen tip PNT may be disposed at one end of the housing PNH. For example, a portion of the pen tip PNT may be exposed to the outside of the housing PNH, and the remaining portion of the pen tip PNT may be inserted into the housing PNH.
[0163] The resonance circuit unit PN100 may be a component that generates a signal. The resonance circuit unit PN100 may include an application specific integrated circuit or an oscillator. The resonance circuit unit PN100 may output an AC signal having a frequency of a predetermined value.
[0164] The resonance circuit unit PN100 may include an inductor L and a capacitor C electrically connected to the inductor L. An LC resonance circuit may be formed by the inductor L and the capacitor C. The capacitor C may be a variable capacitor having a variable capacitance. The input device PN may be placed on the display device DD, and the capacitor C may be charged during a charging period.
[0165] The induced current may be generated in the resonance circuit unit PN100 by the display device DD, and a magnetic field may be generated by resonating with the induced current.
[0166] The power supply unit PN300 may supply power to the control unit PN200. The power supply unit PN300 may include a battery or a high-capacity capacitor, etc. However, this is only an example, and according to an embodiment of the present invention, the power supply unit PN300 may be omitted.
[0167] The second sensing period may include a charging period and a pen sensing period after the charging period. During the charging period, the first pen sensing electrodes P-SE1 may be sequentially driven to form a coil.
[0168] During the charging period, the touch circuit TC may apply the second touch drive signal to the first pen sensing electrode P-SE1 in a predetermined order. Magnetic flux may be generated by the current flowing through the first pen sensing electrode P-SE1. The magnetic flux may flow into the ferrite core surrounded by the coil of the inductor L of the input device PN. In this case, an induced current may be generated in the coil of the inductor L. Charge may be charged into the capacitor C by the induced current.
[0169] In the charging period, the touch circuit TC may apply the third touch driving signal to the second pen sensing electrode P-SE2. During the charging period, the capacitor between the first pen sensing electrode P-SE1 and the first sensing electrode SE1 may be charged, and the capacitor between the second pen sensing electrode P-SE2 and the second sensing electrode SE2 may be charged.
[0170] In the pen sensing period, when the input device PN in which the capacitor C is charged approaches the input sensing unit ISP, the capacitance between the first sensing electrode SE1 and the first pen sensing electrode P-SE1 and the capacitance between the second sensing electrode SE2 and the second pen sensing electrode P-SE2 may be changed. The touch circuit TC may sense the first input according to the capacitance change.
[0171] However, the present invention is not necessarily limited to the method of sensing the first input and the second input from the sensing electrodes SE1, SE2, P-SE1, and P-SE2.
[0172] Fig.14 The diagram is along Figure 8 A cross-sectional view of an example of a cross section taken along line II'.
[0173] Reference Figure 8 and Fig.14 , the first sensing electrode SE1 may be formed of the second conductive pattern CTL2. A portion of the second conductive pattern CTL2 forming the first sensing electrode SE1 may be electrically connected to the first conductive pattern CTL1 for forming a connection pattern having a bridge shape.
[0174] The second sensing electrode SE2 may be formed of the second conductive pattern CTL2. In the active area AA, the second sensing line RL may be formed of the first conductive pattern CTL1. The first conductive pattern CTL1 forming the second sensing line RL may be electrically connected to the second conductive pattern CTL2 forming the second sensing electrode SE2 in the active area AA.
[0175] The first pen sensing electrode P-SE1 may be formed of the second conductive pattern CTL2. A portion of the second conductive pattern CTL2 forming the first pen sensing electrode P-SE1 may be electrically connected to the first conductive pattern CTL1 forming a connection pattern having a bridge shape.
[0176] The second pen sensing electrode P-SE2 may be formed of the second conductive pattern CTL2. In the active area AA, the second pen sensing line PSL2 may be formed of the first conductive pattern CTL1. The first conductive pattern CTL1 forming the second pen sensing line PSL2 may be electrically connected to the second conductive pattern CTL2 forming the second pen sensing electrode P-SE2 in the active area AA.
[0177] The input sensing unit ISP may include a second pen sensing line PSL2 disposed between the first sensing electrode SE1 and the second sensing line RL in the active area AA. For example, the second conductive pattern CTL2 forming the second pen sensing electrode P-SE2 and the first conductive pattern CTL1 forming the second pen sensing line PSL2 may be disposed between the second conductive pattern CTL2 forming the first sensing electrode SE1 and the first conductive pattern CTL1 forming the second sensing line RL.
[0178] An electric field may be formed between the second conductive pattern CTL2 forming the second pen sensing electrode P-SE2 and the first conductive pattern CTL1 forming the second pen sensing line PSL2. In addition, the electric field may minimize coupling between the second conductive pattern CTL2 forming the first sensing electrode SE1 and the first conductive pattern CTL1 forming the second sensing line RL.
[0179] Fig.15 The diagram is along Figure 8 A cross-sectional view of an example of a cross section taken along line II'.
[0180] In addition to the first conductive pattern CTL1, the input sensing unit ISP according to the present embodiment may be connected with Fig.14 The input sensing unit ISP has substantially the same construction. Therefore, the same figure numerals and reference symbols may be used for the same or similar components, and to the extent that an element is not described herein, it may be understood to be at least similar to a corresponding element that has been described elsewhere within the present disclosure.
[0181] Reference Fig.15 , at least one of the second conductive patterns CTL2 forming the second pen sensing electrode P-SE2 may be electrically connected to the ground GND.
[0182] Compared to when not electrically connected to the ground GND, the electric field formed between the first conductive pattern CTL1 and the second conductive pattern CTL2 electrically connected to the ground GND can be stronger. Accordingly, the effect of blocking the coupling between the second conductive pattern CTL2 forming the first sensing electrode SE1 and the first conductive pattern CTL1 forming the second sensing line RL can be further strengthened.
[0183] In an embodiment, some of the second conductive patterns CTL2 adjacent to the first sensing electrode SE1 among the second conductive patterns CTL2 forming the second pen sensing electrode P-SE2 may be electrically connected to the ground GND.
[0184] For example, some of the second conductive patterns CTL2 adjacent to the first sensing electrode SE1 among the second conductive patterns CTL2 forming the second pen sensing electrode P-SE2 may be electrically connected to the first conductive pattern CTL1 disposed thereunder. Also, the first conductive pattern CTL1 disposed thereunder may be electrically connected to the ground GND.
[0185] For example, some of the first conductive patterns CTL1 forming the second pen sensing line PSL2 may be electrically connected to the ground GND. The first conductive patterns CTL1 electrically connected to the ground GND may be electrically connected to the second conductive patterns CTL2 forming the second pen sensing electrode P-SE2.
[0186] In the input sensing unit according to an embodiment of the utility model, the second sensing line can be arranged between the first sensing electrode and the second sensing line in the effective area. Therefore, the coupling between the conductive pattern forming the first sensing electrode (or the first sensing line) and the conductive pattern forming the second sensing line (or the second sensing electrode) can be minimized. Since the coupling is minimized as described above, the sensing reliability of the input device can be improved.
[0187] However, the effects of the present invention are not necessarily limited to the above-described effects, and various extensions may be made within a range that does not depart from the spirit and scope of the present invention.
[0188] Embodiments of the present invention can be applied to a display device and an electronic device including the display device. For example, the present invention can be applied to a digital TV, a 3D TV, a mobile phone, a smart phone, a VR device, a PC (e.g., a tablet computer or a notebook computer), a home electronic device, a PDA, a PMP, a digital camera, a music player, a portable game console, and a navigation device, etc.
[0189] Although described with reference to the above embodiments, it will be understood that those skilled in the art can variously modify and change the present disclosure without departing from the spirit and scope of the present disclosure.
Claims
1. An input sensing unit, comprising: A base layer, comprising an active area and a peripheral area adjacent to the active area; An insulating layer, disposed on the base layer; A sensing electrode, disposed in the effective area of the substrate layer; as well as A circuit is arranged on the base layer, and the circuit is electrically connected to the sensing electrode. Wherein, the sensing electrode comprises: a first sensing electrode; a second sensing electrode, crossing the first sensing electrode; a first sensing electrode adjacent to the first sensing electrode and crossing the second sensing electrode; and a second sensing electrode adjacent to the second sensing electrode and crossing the first sensing electrode, and Wherein, the circuit includes: a first sensing line electrically connected to the first sensing electrode; a second sensing line electrically connected to the second sensing electrode via the active area; A first sensing line electrically connected to the first sensing electrode; and A second pen sensing line is electrically connected to the second pen sensing electrode via the active area and is provided between the first sensing electrode and the second sensing line in the active area.
2. The input sensing unit according to claim 1, wherein: The conductive pattern forming the second pen sensing electrode and the conductive pattern forming the second pen sensing line are disposed between the conductive pattern forming the first sensing electrode and the conductive pattern forming the second sensing line.
3. The input sensing unit according to claim 1, wherein: At least one of the conductive patterns forming the second pen sensing electrode is electrically connected to the ground, and Among the conductive patterns forming the second sensing electrodes, some conductive patterns adjacent to the first sensing electrodes are electrically connected to the ground.
4. The input sensing unit according to claim 1, wherein: the first sensing electrode includes a first portion extending in a first direction, a second portion spaced apart from the first portion of the first sensing electrode and extending in the first direction, and a third portion electrically connecting the first portion of the first sensing electrode to the second portion of the first sensing electrode, The first sensing electrode is disposed between the first portion of the first sensing electrode and the second portion of the first sensing electrode.
5. The input sensing unit according to claim 1, wherein: The sensing electrode includes a plurality of first sensing electrodes including the first sensing electrode, and The plurality of first sensing electrodes are electrically connected to each other, and Wherein, one end of each of the plurality of first sensing electrodes is electrically connected to the ground. The input sensing unit according to claim 1 , wherein: The second sensing electrode extends in a second direction crossing the first direction, and The second sensing line is electrically connected to the second sensing electrode in the active region and extends in the first direction in the active region.
7. The input sensing unit according to any one of claims 1 to 6, wherein: The second sensing electrode at least partially surrounds the second sensing electrode.
8. The input sensing unit according to claim 1, wherein: The second pen sensing electrode includes a first portion extending in a second direction crossing the first direction and a second portion extending in the first direction and electrically connecting the first portion at both ends of the first portion.
9. The input sensing unit according to claim 8, wherein: The circuit includes a plurality of second sensing lines including the second sensing line, and At least two second sensing lines among the plurality of second sensing lines are electrically connected to one of the first portions of the second sensing electrode.
10. The input sensing unit according to claim 9, wherein: The second sensing line is disposed between the at least two second sensing lines among the plurality of second sensing lines in the active area.
Citation Information
Patent Citations
Substrate processing method and substrate processing device
KR1020230085166A