Display device and method of driving a display device

Abstract

A display device and a method of driving the same. The display device includes a housing, a display touch module including a non-exposed area covered by the housing, an exposed area located outside the housing, and an effective area extending over the non-exposed area and the exposed area. The display touch module includes a display member configured to display an image and a touch member on the display member configured to sense a touch input. The display device further includes a boundary determination member configured to sense a capacitance of the touch member and calculate coordinates of an exposed boundary between the exposed area and the non-exposed area of the display touch module. The display device is configured to adjust a display range of the effective area according to the coordinates of the exposed boundary calculated by the boundary determination member.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2020-0118777, filed on September 16, 2020, with the Korean Intellectual Property Office, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0003] This disclosure relates to a display device and a method for driving the display device. Background Technology

[0004] Electronic devices that provide images to users, such as smartphones, tablet PCs, digital cameras, laptops, navigators, and smart TVs, include display devices for displaying images.

[0005] Users want small, portable display devices, but they also want to be able to view images on large screens. To satisfy both easy portability and large screens, display devices configured with flexible display panels that can be folded or unfolded have been developed.

[0006] Display devices include display panels that generate and display images, as well as various input devices. Recently, touch panels that recognize touch input have been widely used in display devices, particularly in smartphones and desktop PCs. Summary of the Invention

[0007] This disclosure relates to various embodiments of a display device in which, even if the exposed area of ​​the displayable region can expand and contract, the exposed external area and the hidden or covered area that change according to the expansion and contraction can be easily distinguished, and the image can be displayed only in the exposed area.

[0008] However, the aspects of this disclosure are not limited to those set forth herein. These and other aspects of this disclosure will become more apparent to those skilled in the art upon reference to the following detailed description of the disclosure.

[0009] An embodiment of the display device includes: a housing; a display touch module including a non-exposed area covered by the housing, an exposed area located outside the housing, and an effective area extending across the non-exposed and exposed areas. The display touch module includes a display member configured to display an image and a touch member on the display member configured to sense touch input. The display device also includes a boundary determining member configured to sense the capacitance of the touch member and calculate the coordinates of an exposed boundary between the exposed and non-exposed areas of the display touch module. The display device is configured to adjust the display range of the effective area based on the coordinates of the exposed boundary calculated by the boundary determining member.

[0010] An embodiment of a method for driving a display device, the display device including a display touch module, the display touch module including a display member for displaying an image and a touch member on the display member and configured to sense touch input, the display touch module including a non-exposed area covered by a housing and an exposed area located outside the housing, the method including: measuring the capacitance of the touch member and determining the coordinates of an exposed boundary between the exposed area and the non-exposed area; and adjusting the area of ​​the display member for displaying the image according to the coordinates of the exposed boundary.

[0011] In the display device according to the embodiments of the present disclosure, even if the effective area of ​​the display device exposed to the outside (and therefore visible to the user) can be expanded and contracted, the externally exposed area of ​​the display device and the effective area that is hidden or covered can be easily distinguished according to the expansion and contraction, and the image can be displayed only in the exposed effective area of ​​the display device.

[0012] Although embodiments of the present disclosure have been disclosed for illustrative purposes, those skilled in the art will understand that various modifications, additions, and substitutions are possible without departing from the scope and spirit of the invention as disclosed in the appended claims. Attached Figure Description

[0013] The above aspects and features, as well as other aspects and features of this disclosure, will become clearer from the detailed description of embodiments thereof with reference to the accompanying drawings, in which:

[0014] Figure 1 This is a plan view of a display device according to an embodiment of the present disclosure;

[0015] Figure 2 It is along Figure 1 A sectional view taken from line II-II';

[0016] Figure 3 This is a plan view of a display device according to another embodiment of the present disclosure;

[0017] Figure 4 It is along Figure 3 A sectional view taken by line IV-IV';

[0018] Figure 5 This is a block diagram of a display panel according to an embodiment of the present disclosure;

[0019] Figure 6 It is a cross-sectional view showing a portion of the exposed area and a portion of the non-exposed area in the display device;

[0020] Figure 7 and Figure 8This is a flowchart illustrating a method for driving a display device according to an embodiment of the present disclosure;

[0021] Figure 9 A view is shown illustrating a method for exposing the boundary of a display touch module of a computing display device according to an embodiment of the present disclosure;

[0022] Figure 10 and Figure 11 This is a view showing the state of the display device according to an embodiment of the present disclosure when the display touch module is slid;

[0023] Figure 12 and Figure 13 This is a view showing the state of a display device according to another embodiment of the present disclosure when the display touch module is slid;

[0024] Figure 14 A view showing the state of a display device according to yet another embodiment of the present disclosure when the display touch module is slid;

[0025] Figure 15 This is a cross-sectional view of a display device according to yet another embodiment of the present disclosure; and

[0026] Figure 16 This is a cross-sectional view of a display device according to yet another embodiment of the present disclosure. Detailed Implementation

[0027] This disclosure will now be described more fully below with reference to the accompanying drawings, in which embodiments of the disclosure are illustrated. However, this disclosure may be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0028] It should also be understood that when a layer is referred to as being on another layer or substrate, it can be directly on that other layer or substrate, or there may be an intermediate layer. Throughout the specification, the same reference numerals denote the same components. In the drawings, the thickness of layers and regions is exaggerated for clarity.

[0029] While the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another. Therefore, a first element discussed below may be referred to as a second element without departing from the teachings of one or more embodiments. The description of an element as a "first" element may not require or imply the presence of a second element or other elements. The terms "first," "second," etc., may also be used herein to distinguish elements of different classes or groups. For the sake of brevity, the terms "first," "second," etc., may respectively represent "first class (or first group)," "second class (or second group)," etc.

[0030] In the following description, embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0031] Figure 1 This is a plan view of a display device 10 according to an embodiment of the present disclosure. Figure 2 It is along Figure 1 The sectional view taken from line II-II'. Figure 1 The initial state of the display touch module 300 of the display device 10 is shown.

[0032] refer to Figure 1 and Figure 2 In the plan view, the first direction DR1 indicates the horizontal direction of the display device 10, and the second direction DR2 indicates the vertical direction of the display device 10. Furthermore, the third direction DR3 indicates the thickness direction of the display device 10. The first direction DR1 and the second direction DR2 intersect each other perpendicularly, and the third direction DR3 intersects both the first direction DR1 and the second direction DR2 perpendicularly in the direction intersecting the plane containing them (i.e., the first direction DR1, the second direction DR2, and the third direction DR3 are orthogonal to each other). However, it should be understood that the directions mentioned in the embodiments refer to relative directions, and the embodiments are not limited to the mentioned directions.

[0033] Unless otherwise defined, in this specification, the terms “above,” “on top of,” or “above,” as indicated to DR3 by a third party, refer to the side of the display surface on which the display touch module 300 is located, and the terms “below,” “under,” or “below,” as indicated to DR3 by a third party, refer to the side opposite to the display surface on which the display touch module 300 is located.

[0034] The display device 10 according to the embodiment may include various devices, including a display touch module 300, which displays a screen or image via an effective area AAR (Analog and Retrieval System) and detects touch input. The display device 10, as a means of displaying moving or still images, can be used as a display screen for various products, such as televisions, laptops, monitors, billboards, Internet of Things (IoT) devices, and portable electronic devices such as mobile phones, smartphones, tablet PCs, smartwatches, watch phones, mobile communication terminals, e-notebooks, e-book readers, portable multimedia players (PMPs), navigators, and ultra-mobile PCs (UMPCs).

[0035] The display device 10 may include a housing 100, a guide roller 200, and a display touch module 300. The housing 100 may be used to house and protect multiple components of the display device 10. For example, at least a portion of the display touch module 300 may be disposed inside the housing 100, and a portion of the display touch module 300 may be disposed outside the housing 100. Furthermore, the guide roller 200 may be disposed inside the housing 100.

[0036] The guide roller 200 can support the curved area BA of the display touch module 300. In other words, the guide roller 200 can be used to hold the display touch module 300 in a curved state. The guide roller 200 can be physically connected to the housing 100. The guide roller 200 can rotate, and therefore, the display touch module 300 can slide. Details will be described later.

[0037] The display touch module 300 may include a display component 310 and a touch component 320 on the display component 310. The display component 310 may display a screen or an image. Examples of the display component 310 may include self-emissive display panels such as organic light-emitting display panels (OLED), inorganic light-emitting display panels (EL), quantum dot light-emitting display panels (QED), micro LED display panels, nano LED display panels (nano LED), plasma display panels (PDP), field emission display panels (FED), and cathode ray display panels (CRT), as well as light-receiving display panels such as liquid crystal display panels (LCD) and electrophoretic display panels (EPD).

[0038] In the following text, an organic light-emitting display panel is used as an example for display component 310, and unless a specific classification is required, the organic light-emitting display panel used in the embodiments will simply be referred to as a display panel. However, the embodiments are not limited to organic light-emitting display panels, and other display panels listed above or known in the art may be used.

[0039] Touch component 320 can sense touch input. Touch component 320 can be disposed on display component 310. Touch component 320 can be integrally disposed with display component 310. In other words, touch component 320 can be directly disposed on the thin film encapsulation layer (not shown) of display component 310. However, this disclosure is not limited thereto, and touch component 320 can be configured as a separate panel or film attached to display component 310.

[0040] The touch component 320 can detect and distinguish between the exposed area EA and the non-exposed area CA of the display touch module 300. For example, the touch component 320 can distinguish between the exposed area EA and the non-exposed area CA by sensing the capacitance difference between them. Therefore, the portion of the display screen on the display component 310 can be adjusted based on the exposed area EA and the non-exposed area CA. Details will be described later.

[0041] The display touch module 300 includes an effective area AAR and an ineffective area NAR. The effective area AAR of the display touch module 300 may include a display area for displaying a screen (static image or moving image). Furthermore, when the display touch module 300 has touch functionality, a touch area may also be included in the effective area AAR, which is the area for sensing touch input. In the following description, the effective area AAR includes a display area for displaying a screen (static image or moving image) and a touch area for sensing touch input; however, this disclosure is not limited thereto.

[0042] The shape of the effective area AAR can correspond to the shape of the display touch module 300 on which the effective area AAR is applied. The effective area AAR can include multiple pixels. The multiple pixels can be arranged in a matrix configuration. Each pixel can have a rectangular shape or a square shape, but its shape is not limited to these.

[0043] The non-active area NAR may surround the active area AAR. The non-active area NAR may include a non-display area in which no display is performed and a non-touch area in which touch input is not sensed. However, this disclosure is not limited thereto. The non-active area NAR may surround, but is not limited to, the active area AAR, and the non-active area NAR may not be located outside or around at least a portion of the active area AAR. The border area of ​​the display touch module 300 may be configured as a non-active area NAR.

[0044] The display touch module 300 can be a flexible display touch module. That is, the display touch module 300 can be a display touch module that can be bent, folded and / or rolled up.

[0045] The display touch module 300 may include a curved region BA, a first non-curved region NBA1, and a second non-curved region NBA2. The curved region BA may extend in a direction parallel to one side of the display touch module 300. For example, the curved region BA may extend in a second direction DR2 and may have a predetermined width in a first direction DR1. The width of the curved region BA in the first direction DR1 may be less than the length of the curved region BA extending in the second direction DR2.

[0046] The first non-curved region NBA1 and the second non-curved region NBA2 may be located around the curved region BA. For example, the first non-curved region NBA1 and the second non-curved region NBA2 may be located on one side and the other side of the curved region BA, wherein the curved region BA is inserted between the first non-curved region NBA1 and the second non-curved region NBA2 (for example, the first non-curved region NBA1 and the second non-curved region NBA2 may be located on opposite sides or opposite ends of the curved region BA).

[0047] As described above, the curved area BA / non-curved areas NBA1 and NBA2 and the active area AAR / inactive area NAR of the display touch module 300 can overlap with each other at a given location. For example, a specific or particular location can be the active area AAR and simultaneously be the first non-curved area NBA1. Furthermore, another specific or particular location can be the inactive area NAR and simultaneously be the first non-curved area NBA1. Additionally, yet another specific or particular location can be the active area AAR and simultaneously be the curved area BA.

[0048] The effective area AAR of the display touch module 300 can be set across both the first non-curved area NBA1 and the second non-curved area NBA2. Furthermore, the effective area AAR can also be located in the curved area BA corresponding to the boundary or interface between the first non-curved area NBA1 and the second non-curved area NBA2. That is, regardless of the boundary or interface between the non-curved areas NBA1 and NBA2 and the curved area BA, the effective area AAR of the display touch module 300 can be set continuously. However, this disclosure is not limited thereto. The effective area AAR can be located only in one of the first non-curved area NBA1 and the second non-curved area NBA2, or the effective area AAR can be set in both the first non-curved area NBA1 and the second non-curved area NBA2, but not in the curved area BA.

[0049] The display touch module 300 can be bent in the curved region BA. In such an embodiment, the first non-curved region NBA1 and the second non-curved region NBA2 can overlap in the thickness direction (third direction DR3), and the display member 310 and the touch member 320 of the display touch module 300 can be bent to form a profile curve (e.g., a semicircle) along the width direction (first direction DR1) of the curved region BA.

[0050] Figure 1 and Figure 2 The diagram illustrates a state where the display touch module 300 is bent or folded outwards. When the display touch module 300 is bent outwards, the first non-bent area NBA1 and the second non-bent area NBA2 of the display touch module 300 bend so that their rear surfaces face each other, and the area of ​​the display touch module 300 on which the screen is displayed is not covered and is exposed to the outside so that it can be seen by the user. In other words, when the display touch module 300 is bent outwards, the display touch module 300 can display a screen to the outside of the display touch module 300.

[0051] When the display touch module 300 is bent, at least a portion of the display touch module 300 can be disposed inside the housing 100. For example, this disclosure is not limited to this, but when the display touch module 300 is bent, at least a portion of the second non-bent area NBA2 of the display touch module 300 can be disposed inside the housing 100 and can be covered by the housing 100.

[0052] In the display touch module 300, the area covered by the housing 100 may be referred to as the non-exposed area CA, and the area not covered by the housing 100 and exposed to the outside may be referred to as the exposed area EA. An exposure boundary EB may be located between the exposed area EA and the non-exposed area CA. The non-exposed area CA may include a second non-curved area NBA2, and the exposed area EA may include a curved area BA and a first non-curved area NBA1. However, this disclosure is not limited thereto, and the non-exposed area CA may further include a portion of the curved area BA, or may further include a portion of the curved area BA and the first non-curved area NBA1.

[0053] The exposed area EA / non-exposed area CA and the active area AAR / inactive area NAR of the aforementioned display touch module 300 can overlap with each other at a given location. For example, a specific or particular location can be the active area AAR and simultaneously be the exposed area EA. Furthermore, another specific or particular location can be the inactive area NAR and simultaneously be the exposed area EA.

[0054] The effective area AAR of the display touch module 300 can be set across both the exposed area EA and the non-exposed area CA. That is, regardless of the boundary (exposed boundary EB) between the exposed area EA and the non-exposed area CA, the effective area AAR of the display touch module 300 can be set continuously.

[0055] The exposed area EA / non-exposed area CA and the curved area BA / non-curved area NBA1 and NBA2 of the display touch module 300 are not fixed and can be changed by sliding the display touch module 300. (See reference...) Figure 3 and Figure 4 Describe its details.

[0056] Figure 3 This is a plan view of a display device according to another embodiment of the present disclosure. Figure 4 It is along Figure 3 A sectional view taken from line IV-IV'. Figure 3 The display touch module 300 of the display device 10 is shown in a sliding configuration.

[0057] Further reference Figure 3 and Figure 4 When the display touch module 300 slides to one side in the first direction DR1, the exposed area EA of the display touch module 300 can expand or increase, and its non-exposed area CA can shrink or decrease. In other words, the display touch module 300 disposed outside the housing 100 can slide to one side in the first direction DR1, and therefore, at least a portion of the display touch module 300 located inside the housing 100 can be exposed to the outside of the housing 100. That is, as the display touch module 300 slides, the exposed boundary EB can move. When the display touch module 300 slides, the display touch module 300 can slide more smoothly while rotating the guide roller 200.

[0058] Furthermore, as the portion of the display touch module 300 disposed outside the housing 100 slides to one side in the first direction DR1, the position of the curved region BA of the display touch module 300 can change, the first non-curved region NBA1 can expand (increase or lengthen), and the second non-curved region NBA2 can contract (decrease). In other words, as the portion of the display touch module 300 disposed outside the housing 100 slides to one side in the first direction DR1, it can be understood that the curved region BA disposed between the first non-curved region NBA1 and the second non-curved region NBA2 moves in opposite directions.

[0059] Despite Figure 3 and Figure 4The illustration shows the display touch module 300 sliding to one side in a first direction DR1, and thus the exposed area EA and the first non-bending area NBA1 expand or increase, but this disclosure is not limited thereto. For example, a portion of the display touch module 300 disposed outside the housing 100 may slide to the other side in the first direction DR1, and in this case, the exposed area EA and the first non-bending area NBA1 may contract or decrease, and the non-exposed area CA and the second non-bending area NBA2 may expand or increase.

[0060] Even when the screen is displayed, the non-exposed area CA of the display touch module 300 can be covered by the housing 100, and therefore the user may not be able to recognize the screen (e.g., if an image is displayed over the entire effective area AAR, the user will not be able to see the portion of the image in the non-exposed area CA). Therefore, it is necessary to detect the exposed area EA of the effective area AAR of the display touch module 300 and display the screen (static or dynamic image) only within the exposed area EA of the effective area AAR. Furthermore, as described above, in order to detect the exposed area EA that expands and contracts according to the sliding of the display touch module 300, it is necessary to accurately detect the coordinates of the exposed boundary EB. The coordinates of the exposed boundary EB can be detected by the touch member 320. Details will be described later.

[0061] Figure 5 This is a block diagram of a display panel according to an implementation method.

[0062] refer to Figure 5 The display touch module 300 may also include a display driver 330 for driving the display component 310 and a touch controller 340 for driving the touch component 320.

[0063] Display component 310 may include multiple pixels and can be driven by display driver 330 to display an image. Display component 310 may include multiple data lines, multiple scan lines, and multiple pixels connected to the data lines and scan lines. In some embodiments, display component 310 may also include multiple light-emitting control lines. In some embodiments, display component 310 may be an organic light-emitting diode (OLED) display panel, wherein each pixel includes an OLED. However, display component 310 is not limited to an OLED display panel. Each pixel may include at least one thin-film transistor, a storage capacitor, and an OLED.

[0064] The display device 10 may further include a main processor (e.g., a graphics processing unit (GPU)) or an application processor (AP) 400 including a GPU. The display driver 330 may drive the display component 310 based on input image data IDAT and a control signal CTRL provided from the main processor 400. In some embodiments, the input image data IDAT may be RGB data including red, green, and blue image data. Furthermore, in some embodiments, the control signal CTRL may include, but is not limited to, an input data enable signal, a master clock signal, a vertical synchronization signal, and a horizontal synchronization signal.

[0065] The display driver 330 can generate a display panel drive signal DPS based on the input image data IDAT and the control signal CTRL, and can provide the display panel drive signal DPS to the display component 310, thereby driving the display component 310. In an embodiment, the display panel drive signal DPS may include a scan signal, a data signal, and a light emission control signal, and the display driver 330 may include a scan driver that provides a scan signal to the display component 310, a data driver that provides a data signal to the display component 310, a light emission driver that provides a light emission control signal to the display component 310, and a timing controller that controls the timing of the scan driver, the data driver, and the light emission driver, but this disclosure is not limited thereto.

[0066] Touch component 320 may include a capacitive touch panel that senses external objects (e.g., fingers, styluses, housing 100 (reference)). Figure 2 The capacitance change caused by this. For example, the touch component 320 may include a drive line T. x and sensing line R x Despite Figure 5 The diagram shows the setting of a drive line T. x and a sensing line R x However, this disclosure is not limited to this, and multiple drive lines T can be configured. x and multiple sensing lines R x .

[0067] Drive line T x and sensing line R x They can be set on the same layer or substantially on the same layer. In such an implementation, the drive line T x and sensing line R x Each of them may have a structure consisting of multiple consecutive polygons with a rhomboid shape connected together, but this disclosure is not limited thereto. In one or more embodiments, the drive line T x and sensing line R x They can be set on different layers.

[0068] The method by which the touch controller 340 drives the touch component 320 may include at least one of a mutual capacitance sensing method and a self-capacitance sensing method. The touch controller 340 may sense the drive line T. x and sensing line R X The touch controller 340 performs mutual capacitance sensing operation by sensing the change in mutual capacitance between the two sensors. Furthermore, the touch controller 340 can sense the change in mutual capacitance between the two sensors via the sensing line R. x The change in self-capacitance (or sensing line R) x Self-capacitance sensing touch sensing operations can be performed by sensing changes in capacitance between the object and the external object, or by sensing the drive line T. x The change in self-capacitance (or driving line T) x The self-capacitance sensing touch sensing operation is performed by measuring the change in capacitance between the object and the external object.

[0069] For example, the touch controller 340 can send signals to the drive line T. x Apply drive signal T x P. The touch controller 340 can receive the drive signal T. x The driving line T applied by P x and sensing line R x Capacitive coupling between them is used to sense the sensing line R x The sensing signal R x P. Optionally, the touch controller 340 can be based on the sensing signal R. x P senses the drive signal T x The driving line T applied by P x With sensing line R x The change in mutual capacitance between them or through sensing drive line T x and / or sensing line R x The change in self-capacitance is used to generate touch data TD indicating whether an external object has performed a touch and the touch location, and the touch data TD is provided to the main processor 400.

[0070] The display touch module 300 may further include a boundary determination member 350. The boundary determination member 350 can divide the display touch module 300 into an exposed area EA and a non-exposed area CA, and detect the exposed area EA and the non-exposed area CA. In other words, the boundary determination member 350 can calculate the coordinates (or position) of the exposed boundary EB between the exposed area EA and the non-exposed area CA. The boundary determination member 350 can calculate the coordinates (or position) of the exposed boundary EB by sensing the difference between the mutual capacitance and / or self-capacitance of the touch component 320 in the exposed area EA and the non-exposed area CA.

[0071] The boundary determination component 350 may include a sensor 351, a comparison unit 352, a data processor 353, a boundary calculator 354, and a memory 355.

[0072] Sensor 351 can detect the mutual capacitance and / or self-capacitance values ​​across the entire area of ​​touch member 320. The mutual capacitance and / or self-capacitance values ​​may differ in the exposed area EA and the non-exposed area CA of touch member 320. (Refer to...) Figure 6 Describe its details.

[0073] Figure 6 It is a cross-sectional view showing a portion of the exposed area EA and a portion of the non-exposed area CA in the display device. Figure 6 The drive line T of the touch component 320 is shown. x and sensing line R x The state is directly set on the display component 310 in each of the exposed area EA and the non-exposed area CA. In the non-exposed area CA, the drive line T x and sensing line R x It is covered by the casing 100.

[0074] Further reference Figure 6 In the exposed area EA and the unexposed area CA, the driving line T x and sensing line R x It may include mutual capacitance and / or self-capacitance with different values, and sensor 351 can sense drive line T. x and sensing line R x .

[0075] In other words, within the exposed region EA, the driving line T x and sensing line R x It can be left uncovered by housing 100 and can be exposed. The drive line T in the exposed area EA... x and sensing line R x It can include mutual capacitance Cm _ EA, and may not include self-capacitance.

[0076] In the unexposed region CA, the driving line T x and sensing line R x It can be covered by housing 100. Drive line T in the non-exposed area CA. x and sensing line R x It can include self-capacitance C s _T x and C s _R x and mutual capacitance C m _CA. Driving lines T in the non-exposed region CA. x and sensing line Rx self-capacitance C s _T x and C s _R x They can be formed separately on the drive line T x Between and housing 100 and sensing line R x Between and housing 100. Self-capacitance C s _T x and C s _R x Not only in the non-exposed area CA, but also in the driving line T x and sensing line R x It is formed when in direct contact with housing 100, and can also be formed when it is spaced a predetermined distance (i.e., a gap) from housing 100. The drive line T in the non-exposed area CA will be described below. x and sensing line R x An embodiment that is spaced a predetermined distance from the housing 100, but this disclosure is not limited thereto.

[0077] In this embodiment, the driving line T in the exposed area EA and the non-exposed area CA x and sensing line R x The capacitances of the components can be different from each other. In other words, the exposed area EA can include only the drive line T. x and sensing line R x mutual capacitance C m _EA, and the non-exposed area CA may include the drive line T. x and sensing line R x mutual capacitance C m _CA and self-capacitance C s _T x and C s _R x In other words, the exposed area EA and the non-exposed area CA can be determined based on the driving line T. x and sensing line R x The capacitance is different from that of the housing 100 due to the presence or absence of its own capacitance.

[0078] In addition, the driving line T in the exposed area EA x and sensing line R x mutual capacitance C m _EA can be different from the driving line T in the non-exposed area CA. x and sensing line R x mutual capacitance C m _CA. When the driving line T in the non-exposed region CA x and sensing line R x When adjacent to or in contact with housing 100, the mutual capacitance C with the exposed area EA mCompared to _EA, the mutual capacitance C of the non-exposed region CA m The CA can be changed or varied. In other words, the driving line T in the non-exposed area CA... x and sensing line R x May be affected by proximity or contact with the display touch module 300 (reference) Figures 1 to 4 The electric or magnetic field generated by the shell 100 affects the driving line T in the non-exposed area CA. x and sensing line R x mutual capacitance C m _CA can be different from the driving line T in the exposed area EA. x and sensing line R x mutual capacitance C m _EA. That is, the driving line T in the exposed area EA and the unexposed area CA. x and sensing line R x According to the drive line T x and sensing line R x Whether it is covered by housing 100 and includes different mutual capacitances C m _EA and C m _CA.

[0079] Sensor 351 can be electrically connected to sensing line R in exposed area EA and non-exposed area CA. x It can also sense the sensing line R in both the exposed area EA and the unexposed area CA. x The capacitance. Although in Figure 6 The image shows sensor 351 electrically connected to sensing line R in both exposed area EA and non-exposed area CA. x However, this disclosure is not limited thereto, and sensor 351 may also be electrically connected to drive line T in the exposed area EA and the non-exposed area CA. x .

[0080] Sensor 351 is allowed to sense the mutual capacitance C of each of the exposed area EA and the non-exposed area CA. m_ CA and C m_ EA and self-capacitance C s _T x and C s _R x The method is essentially the same as the method described above that allows the touch controller 340 to drive the touch component 320. In other words, it allows the sensor 351 to sense the mutual capacitance C between the exposed area EA and the non-exposed area CA. m _CA and C m _EA and self-capacitance C s _T x and C s _R xThe method can be essentially the same as allowing the touch controller 340 to sense the drive line T x and sensing line R x The methods for changing the mutual capacitance and self-capacitance are the same, but this disclosure is not limited thereto.

[0081] refer to Figure 5 The comparator 352 can receive mutual capacitance and / or self-capacitance values ​​of the entire area of ​​the touch member 320 from the sensor 351. The comparator 352 compares each of the mutual capacitance and / or self-capacitance values ​​of the entire area of ​​the touch member 320 with a pre-stored capacitance threshold. As described later, the portion of the mutual capacitance and / or self-capacitance value that equals the capacitance threshold can be the exposure boundary EB.

[0082] The data processor 353 can receive capacitor information obtained by comparing the mutual capacitance and / or self-capacitance values ​​of the touch member 320 with a capacitance threshold from the comparator 352, and can process the capacitor information. In other words, the data processor 353 can convert the capacitor information obtained by comparing the mutual capacitance and / or self-capacitance values ​​of the touch member 320 with a capacitance threshold into a format suitable for transmission. The data processor 353 can transmit the converted capacitor information to the boundary calculator 354 via wired or wireless communication methods.

[0083] Boundary calculator 354 can receive capacitor information obtained by comparing the mutual capacitance value and / or self-capacitance value of the touch member 320 with a capacitance threshold, calculate the exposure boundary EB based on the capacitor information, and determine the exposure boundary EB. Boundary calculator 354 can transmit the boundary information BDT of the exposed area EA and the non-exposed area CA to the main processor 400. However, this disclosure is not limited thereto, and boundary calculator 354 can also transmit the boundary information BDT of the exposed area EA and the non-exposed area CA to the display driver 330.

[0084] The main processor 400 can receive boundary information BDT and transmit a boundary signal BIDT to the display driver 330. The boundary signal BIDT may include information about the boundary (exposed boundary EB) between the exposed area EA and the non-exposed area CA of the display touch module 300, and a command to display the screen (static image and / or dynamic image) only in the exposed area EA on one side of the boundary (exposed boundary EB). The display driver 330, which receives the boundary signal BIDT, can cause the screen to be displayed only in the exposed area EA of the display member 310. However, this disclosure is not limited thereto. When the display driver 330 directly receives the boundary information BDT between the exposed area EA and the non-exposed area CA, the display driver 330 can directly transmit a signal to display the screen only in the exposed area EA on one side of the boundary (exposed boundary EB).

[0085] The memory 355 may store information obtained by comparing the mutual capacitance and / or self-capacitance values ​​of the entire area of ​​the touch member 320 with previously stored capacitance thresholds, and / or store the coordinates (or location) of the exposed boundary EB calculated by the boundary calculator 354. The memory 355 may include at least one of internal memory and external memory in which information can be stored.

[0086] Despite Figure 5 The boundary determination component 350 is shown as a separate component from the display driver 330 and the touch controller 340, but this disclosure is not limited thereto. For example, in some other embodiments, the boundary determination component 350 may be configured together with the touch controller 340 (e.g., the boundary determination component 350 and the touch controller 340 may be an integral component). In other words, the touch controller 340 may include the boundary determination component 350. In other words, in some other embodiments, some components of the boundary determination component 350 may be configured together with the touch controller 340, and other components of the boundary determination component 350 may be configured together with the main processor 400 (or the display driver 330). For example, the sensor 351, the comparison unit 352, and the data processor 353 of the boundary determination component 350 may be configured together with the touch controller 340, and the boundary calculator 354 of the boundary determination component 350 may be configured together with the main processor 400 (or the display driver 330).

[0087] The following section will describe in detail the operation by which the touch module 300 calculates the exposure boundary EB between the exposed area EA and the non-exposed area CA.

[0088] Figure 7 and Figure 8 This is a flowchart illustrating a method for driving a display device according to an embodiment.

[0089] refer to Figure 5 , Figure 7 and Figure 8 Set the capacitance threshold THC (see Figure 9 The system initializes the touch capacitance values ​​sensed in each region of the touch member 320 (S100) and a frame count threshold (not shown). Hereinafter, the touch capacitance of the touch member 320 is used as the mutual capacitance C of the touch member 320. s _T x and C s _R x (refer to Figure 6 ) and self-capacitance C m _CA and C m _EA (Reference) Figure 6 The terminology for these two types of capacitors.

[0090] Subsequently, it is determined whether the touch member 320 has been touched (S200). In the method for determining whether the touch member 320 has been touched, mutual capacitance and / or self-capacitance are sensed in the touch member 320 within the effective area AAR, and compared with a threshold used as a standard for determining whether the touch member 320 has been touched. In this embodiment, when the mutual capacitance and / or self-capacitance are greater than the threshold, it can be determined that the touch member 320 has been touched.

[0091] Optionally, mutual capacitance and / or self-capacitance are sensed in the touch member 320 of the effective area AAR, and it is determined whether the area with mutual capacitance and / or self-capacitance is greater than a threshold used as a standard for determining whether the touch member 320 has been touched, thereby accurately determining whether the touch member 320 has been touched. For example, when the area with mutual capacitance and / or self-capacitance that is greater than the threshold used as a standard for determining whether the touch member 320 has been touched is less than 1 / 2, less than 1 / 10, or less than 1 / 20 of the width of the effective area AAR of the touch member 320 in the second direction DR2 and / or the first direction DR1, it can be determined that the touch member 320 has been touched in the corresponding area.

[0092] Since the method for sensing the mutual capacitance and self-capacitance of the touch component 320 has already been described above, its description will be omitted.

[0093] When it is determined that the touch component 320 has been touched, it is determined whether the touch component 320 has been touched again (S200). When it is determined that the touch component 320 has not been touched, the coordinates of the exposed boundary EB are calculated (S300).

[0094] In one embodiment, firstly, touch capacitance is sensed over the entire area of ​​the touch member 320 (S310). In other words, mutual capacitance and self-capacitance are sensed over the entire area of ​​the touch member 320 within the active area AAR. In this embodiment, since there is no touch input in the touch member 320, the touch member 320 can be affected only by interference from the housing 100, and therefore only different mutual capacitances C are sensed in each of the exposed area EA and the non-exposed area CA. s _T x and C s _R x (refer to Figure 6 And different self-capacitance C m _CA and C m _EA (Reference) Figure 6 Mutual capacitance C s _T x and Cs _R x (refer to Figure 6 ) and self-capacitance C m _CA and C m _EA (Reference) Figure 6 This can be sensed by sensor 351, but this disclosure is not limited thereto.

[0095] Subsequently, the mutual capacitance C s _T x and C s _R x (refer to Figure 6 ) and self-capacitance C m _CA and C m _EA (Reference) Figure 6 Each of the values ​​in the equation is compared with the capacitance threshold THC, and the coordinates of the exposure boundary EB are calculated based on the comparison results (S320). Further reference will be made. Figure 9 The operation of calculating the coordinates of the exposed boundary EB is described in more detail.

[0096] Figure 9 A view is shown illustrating a method for explaining the exposure boundary EB of the display touch module 300 of a computing display device 10 according to an embodiment. Figure 9 In the diagram, (a) shows the state of the display device 10 before the slide, (b) shows the state of the display device 10 after the slide, and (c) is a graph showing the capacitance value of the touch member 320 in each posture (state (a) and state (b)). Furthermore, in Figure 9 In (c), the horizontal axis represents the width from one end X of the display touch module 300 to the other end Y, and the vertical axis of (c) represents the mutual capacitance C. s _T x and C s _R x (refer to Figure 6 ) and self-capacitance C m _CA and C m _EA (Reference) Figure 6 The sensed value of any one of them.

[0097] exist Figure 9 In the diagram, (c) represents the mutual capacitance C at each point from one end X to the other end Y of the display touch module 300. s _T x and C s _R x (refer to Figure 6 ) and self-capacitance C m _CA and C m _EA (Reference) Figure 6 The sensed value of any one of them. Figure 9In (c), curve A (solid line) represents the sensed value of state (a), while curve B (dashed line) represents the sensed value of state (b). Furthermore, in Figure 9 In (c), the capacitance threshold THC is represented.

[0098] Further reference Figure 9 The sensed value at the exposure boundary EB can be substantially equal to the capacitance threshold THC. The region on one side of the exposure boundary EB (e.g., the non-exposed region CA) can include sensed values ​​greater than the capacitance threshold THC, and the region on the other side of the exposure boundary EB (e.g., the exposed region EA) can include sensed values ​​less than the capacitance threshold THC. For example, the non-exposed regions CAa and CAb can include sensed values ​​greater than the capacitance threshold THC, the exposed regions EAa and EAb can include sensed values ​​less than the capacitance threshold THC, and the exposure boundary EB can include sensed values ​​substantially equal to the capacitance threshold THC.

[0099] Furthermore, the sensed values ​​can be continuous across the capacitance threshold THC between regions located on one side (e.g., above) of the exposure boundary EB (non-exposed regions CAa, CAb) and regions located on the other side (e.g., below) of the exposure boundary EB (exposed regions EAa, EAb), and can cross the capacitance threshold THC at the exposure boundary EB. However, this disclosure is not limited thereto, and the non-exposed regions CAa and CAb can include sensed values ​​less than the capacitance threshold THC, and the exposed regions EAa and EAb can include sensed values ​​greater than the capacitance threshold THC.

[0100] In the touch component 320, the mutual capacitance C in each region of the display touch module 300 from one end X to the other end Y can be sensed. s _T x and C s _R x (refer to Figure 6 ) and self-capacitance C m _CA and C m _EA (Reference) Figure 6 Any one of the following can be compared to a pre-stored capacitance threshold THC. The sensed values ​​measured in each region can be in the second direction DR2 (see...). Figures 1 to 4 They are substantially the same as each other, but this disclosure is not limited thereto. Furthermore, when the sensing target is the mutual capacitance C... s _T x and C s _R x (refer to Figure 6 In the case of ) and when the sensing target is the self-capacitance C m _CA and C m _EA (Reference) Figure 6In the case of ( ), the capacitance thresholds THC can be different from each other, but this disclosure is not limited thereto.

[0101] As the display touch module 300 slides, the coordinates of the exposed boundaries EBa and EBb can change. For example, as Figure 9 As shown in (a) and (b), as the display touch module 300 slides, the exposed areas EAa and EAb can expand, and the non-exposed areas CAa and CAb can contract. In this embodiment, as the display touch module 300 slides, the exposed boundary EBa shown in the state before sliding (a) can move toward or towards one end X, and can be positioned at the exposed boundary EBb shown in the state after sliding (b).

[0102] As described above, even when the coordinates of the exposed boundaries EBa and EBb change as the display touch module 300 slides, the coordinates of the exposed boundaries EBa and EBb can still be calculated using the capacitance thresholds THCa and THCb. In other words, in Figure 9 In (c), the capacitance threshold THCa of curve A and the capacitance threshold THCb of curve B are essentially the same, and even when the coordinates (or positions) of the exposed boundaries EBa and EBb change due to the sliding of the display touch module 300, the coordinates of the exposed boundaries EBa and EBb can be calculated by sensing the capacitance thresholds THCa and THCb.

[0103] Subsequently, as Figure 8 As shown, it is determined whether the coordinates of the exposure boundary EB calculated in the current frame are the same as the coordinates of the exposure boundary EB calculated in the previous frame (S330). The coordinates of the exposure boundary EB calculated for each frame can be compared with each other to detect whether the display touch module 300 is sliding.

[0104] In one or more embodiments, the operation of calculating the coordinates of the exposed boundary EB can be performed for each frame. For example, the touch controller 340 can drive the touch member 320 at a frame rate of 120 Hz. In this embodiment, the coordinates of the exposed boundary EB can be calculated for each frame, and therefore the exposed boundary EB can be calculated 120 times per second, but this disclosure is not limited thereto. The frame rate is not limited thereto, and the number of times the coordinates of the exposed boundary EB are calculated may differ from the frame rate.

[0105] The current frame can be referred to as the nth frame, and in this implementation, the previous frame can be referred to as the (n-1)th frame (where n is a natural number). In operation S330, the coordinates of the exposure boundary EB calculated in the nth frame are compared with the coordinates of the exposure boundary EB calculated in the (n-1)th frame.

[0106] When the coordinates of the exposure boundary EB calculated in frame n are different from the coordinates of the exposure boundary EB calculated in frame n-1, the frame count is initialized (S331). When the frame count is initialized, the frame count can be "0", but is not limited to this. After the frame count is initialized, the process returns to step S310, which involves sensing the touch capacitance of the touch member 320 again.

[0107] The frame count is incremented (S332) when the coordinates of the exposed boundary EB calculated in frame n are substantially the same as those calculated in frame n-1. For example, 1 can be added to the current frame count, but this disclosure is not limited thereto.

[0108] Then, the frame count is compared with the frame count threshold (S340).

[0109] When the frame count is less than the frame count threshold, the process returns to step S310, which involves sensing the touch capacitance of the touch component 320 again. When the frame count is less than the frame count threshold, it can be seen that the calculated exposure boundary EB has not been maintained for a certain period of time (e.g., the threshold time period). In other words, it can be seen that the display touch module 300 is sliding, and the expansion or contraction of the exposure area EA is underway. In this case, the previously determined exposure boundary EB is maintained, and the screen can be displayed only in the exposure area EA based on this state (i.e., the previous state when the display touch module 300 is not sliding).

[0110] When the frame count is greater than the frame count threshold, the coordinates of the currently calculated exposure boundary EB are determined (S350). When the frame count is greater than the frame count threshold, it can be seen that the calculated exposure boundary EB has been maintained for a predetermined time. In other words, when the frame count is equal to or greater than the frame count threshold, it is determined that the display touch module 300 is not sliding, and the expansion or contraction of the exposure area EA has stopped. In this case, a new exposure boundary EB with coordinates different from the initial exposure boundary EB can be determined.

[0111] A frame count of the calculated coordinates of the exposed boundary EB can be calculated and compared with a frame count threshold to determine whether the display touch module 300 has been swiped. Accordingly, the coordinates of the calculated exposed boundary EB can be determined. For example, the frame rate of the touch controller 340 can be 120Hz, and the coordinates of the exposed boundary EB can be calculated for each frame. The initial value of the frame count can be "0", and the frame count threshold can be 120. In this case, if the frame count is equal to or greater than the frame count threshold (i.e., 120), it can be seen that the exposed boundary EB has been held for 1 second or longer, and it can be recognized that the user's swiping of the display touch module 300 has stopped. However, this disclosure is not limited to this, and it is recognized that the time during which the swiping has stopped can vary depending on the frame rate and the frame count threshold.

[0112] Subsequently, the coordinates of the determined exposure boundary EB are transmitted to the main processor 400 (S400). However, this disclosure is not limited thereto, and the coordinates of the determined exposure boundary EB may also be transmitted to the display driver 330.

[0113] Subsequently, the main processor 400 displays the screen only in the exposed area EA based on the coordinates of the exposed boundary EB (S500). In other words, the main processor 400 can transmit a signal to the display driver 330 so that the screen is displayed only in the exposed area EA located on one side of the exposed boundary EB. According to this signal, the display driver 330 can display the screen only in the exposed area EA.

[0114] Even when the effective area AAR is arranged across the exposed area EA, the non-exposed area CA, and the exposed boundary EB, the non-exposed area CA is covered by the housing 100, and therefore the user may not be able to recognize or view the image displayed in the non-exposed area CA. Because the touch capacitance of the touch component 320 can be sensed to calculate and determine the exposed boundary EB, the screen (static and / or dynamic images) can be displayed in the exposed area EA of the effective area AAR, and may not be displayed in the non-exposed area CA of the effective area AAR.

[0115] Therefore, since the screen (static and / or dynamic images) can be displayed only in the user-visible exposed area EA of the effective area AAR, unnecessary power consumption of the display device 10 can be reduced. Furthermore, since the exposed area EA, non-exposed area CA, and exposed boundary EB are calculated via the touch component 320, no separate configuration is required, which can suppress or prevent a decrease in the process efficiency of forming the display device 10, and can suppress or prevent an increase in processing costs.

[0116] Figure 10 and Figure 11 This is a view showing the state of the display device 10 according to an embodiment, as the display touch module 300 slides and drives. Figure 10 In the diagram, (d), (e), and (f) show a perspective view of the display device 10, illustrating the screen (visual display) that changes as the display touch module 300 gradually slides. Figure 11 In the diagram, (d), (e), and (f) respectively show... Figure 10 The plan views of the display touch module 300 shown in (d), (e), and (f) are illustrated, with the display touch module 300 shown in an unfolded configuration for clarity. Furthermore, for clarity, in... Figure 10 In the text, guide roller 200 is omitted (reference). Figure 2 and Figure 4 ).

[0117] refer to Figure 10 and Figure 11 As the display touch module 300 slides, the exposed area EA can be expanded (increased or extended). The exposed area EA may include at least a portion of the first non-curved area NBA1 and the curved area BA, and an image may be displayed on the first non-curved area NBA1 and the curved area BA.

[0118] As the exposed area EA expands, the area of ​​the screen that the user can view can expand. When the display touch module 300 slides to expand the exposed area EA, the image on the screen displayed in the exposed area EA of the effective area AAR can gradually expand. In other words, in each of (d), (e), and (f), the display device 10 displays the same image (multiple images), but the sizes of the images (multiple sizes) can be different from each other. The image on the screen displayed in (e) can be larger than the image on the screen displayed in (d), and the image on the screen displayed in (f) can be larger than the image on the screen displayed in (e).

[0119] However, this disclosure is not limited thereto. When the display touch module 300 slides to shrink the exposed area EA, the image displayed on the screen in the exposed area EA of the effective area AAR can gradually shrink.

[0120] Other implementations will be described below. In the following implementations, redundant descriptions of components that are the same as those previously described will be omitted or simplified, and the differences will be mainly described.

[0121] Figure 12 and Figure 13 This is a view showing the state of a display device according to another embodiment, as the display touch module slides and drives. Figure 12 In the diagram, (g), (h), and (i) show a perspective view of the display device 10_1, illustrating the screen's change as the display touch module 300 gradually slides. Figure 13 In the diagram, (g), (h), and (i) respectively show... Figure 10 The plan view of the display touch module 300 shown in (d), (e) and (f) is shown, and for ease of explanation, the display touch module 300 is shown in an unfolded configuration.

[0122] Reference Figure 12 and Figure 13 This implementation method is the same as Figure 10 and Figure 11 The difference in the implementation method is that the operation of the screen (static image or dynamic image) displayed by the display touch module 300 of the display device 10_1 according to this embodiment is different from that of the screen (static image or dynamic image) displayed by the display touch module 300 of the display device 10_1 according to this embodiment. Figure 10 and Figure 11The operation of the screen (static image or dynamic image) displayed by the display touch module 300 of the display device 10 in the embodiment of the present invention.

[0123] exist Figure 12 and Figure 13 In the illustrated embodiment, the exposed area EA can be expanded as the display touch module 300 slides. As the exposed area EA expands, the area of ​​the screen that the user can view expands. When the display touch module 300 slides to expand the exposed area EA, more portions of the image displayed on the screen within the exposed area EA of the effective area AAR can be gradually displayed. For example, the image displayed on the screen in (g) may correspond to 1 / 2 of the entire image, the image displayed on the screen in (h) may correspond to 3 / 4 of the entire image, and the image displayed on the screen in (i) may correspond to the entire image.

[0124] Even in this embodiment, the screen can be displayed in the non-exposed area CA of the effective area AAR by sensing the capacitance of the touch component 320, calculating the exposure boundary EB, and determining the exposure boundary EB. Accordingly, unnecessary power consumption of the display device 10_1 can be reduced compared to the embodiment that displays the image in the non-exposed area CA. Furthermore, as the display touch module 300 slides, various screen driving methods can be provided in the expanded exposed area EA, increasing user convenience.

[0125] Figure 14 This diagram shows a view of the state of a display device according to yet another embodiment, as the display touch module slides along the drive. Figure 14 In the diagram, (j), (k) and (l) show a perspective view of the display device 10_2, and show the screen (static image and / or dynamic image) that changes as the display touch module 300 gradually slides.

[0126] refer to Figure 14 This implementation method is the same as Figure 10 The difference in the implementation method is that the screen (static image or dynamic image) may not be displayed in the curved area BA of the display touch module 300 of the display device 10_2 according to this embodiment.

[0127] exist Figure 14In the illustrated embodiment, the exposed area EA can be expanded as the display touch module 300 according to this embodiment slides. As the exposed area EA expands, the area of ​​the screen that the user can view expands. When the display touch module 300 slides to expand the exposed area EA, the image on the screen displayed in the exposed area EA of the effective area AAR can be gradually expanded. In other words, in (j), (k), and (l), the display device 10_2 displays the same image or multiple images of the same kind, but their sizes can be different from each other. The image on the screen displayed in (k) can be larger than the image on the screen displayed in (j), and the image on the screen displayed in (l) can be larger than the image on the screen displayed in (k).

[0128] The screen (static image and / or dynamic image) can be displayed in the first non-curved area NBA1 of the display touch module 300, and may not be displayed in the curved area BA of the display touch module 300. Even when the display touch module 300 is swiped, the curvature and radius of curvature of the curved area BA of the display touch module 300 can remain constant. Therefore, the distance (or number of pixels) from the exposed boundary EB to the boundary between the curved area BA and the first non-curved area NBA1 can be measured or determined, and the measured or determined distance can be reflected in the coordinates of the determined exposed boundary EB, thereby allowing the screen to be displayed only in the first non-curved area NBA1 and not in the curved area BA.

[0129] Even in this embodiment, the screen can be displayed in the non-exposed area CA of the effective area AAR by sensing the capacitance of the touch component 320, calculating the exposure boundary EB, and determining the exposure boundary EB. Therefore, compared with the embodiment that displays the image in the non-exposed area CA, unnecessary power consumption of the display device 10_2 can be reduced. Furthermore, as the display touch module 300 slides, various screen driving methods can be provided in the expanded exposed area EA, and user convenience can be increased.

[0130] Figure 15 This is a cross-sectional view of a display device according to yet another embodiment.

[0131] refer to Figure 15 According to this embodiment, the display touch module 300_3 of the display device 10_3 and Figure 2 The difference in the implementation of the display touch module 300 is that it can slide in the first direction DR1 towards one side and the other side (for example, the display touch module 300_3 can slide in both the positive first direction (+DR1) and the negative first direction (-DR1)). Figure 15In the illustrated embodiment, the housing 100_3 of the display device 10_3 according to this embodiment includes a first housing 110 and a second housing 120, and its guide rollers 200_3 may include a first guide roller 210 and a second guide roller 220. The first housing 110 and the second housing 120 may be separate from and spaced apart from each other, but this disclosure is not limited thereto.

[0132] The display touch module 300_3 of the display device 10_3 according to this embodiment may include a first curved region BA1, a second curved region BA2, a first non-curved region NBA1, a second non-curved region NBA2 and a third non-curved region NBA3.

[0133] The second non-curved area NBA2 can be located on one side of the first non-curved area NBA1, and the third non-curved area NBA3 can be located on the other side of the first non-curved area NBA1 (i.e., the second non-curved area NBA2 and the third non-curved area NBA3 can be located on opposite sides or opposite ends of the first non-curved area NBA1). The first curved area BA1 can be located between the first non-curved area NBA1 and the second non-curved area NBA2, and the second curved area BA2 can be located between the first non-curved area NBA1 and the third non-curved area NBA3.

[0134] The display touch module 300_3 may include an exposed area EA, a first non-exposed area CA1, a second non-exposed area CA2, a first exposed boundary EB1, and a second exposed boundary EB2. The first exposed boundary EB1 may be located between the exposed area EA and the first non-exposed area CA1, and the second exposed boundary EB2 may be located between the exposed area EA and the second non-exposed area CA2.

[0135] The exposed area EA may include a first non-curved area NBA1, a first curved area BA1, and a second curved area BA2. The first non-exposed area CA1 may include a second non-curved area NBA2, and the second non-exposed area CA2 may include a third non-curved area NBA3, but this disclosure is not limited thereto.

[0136] The display touch module 300_3 can slide in the first direction DR1 toward one side and the other side (i.e., in opposite directions), and the exposed area EA can be expanded by sliding. The exposed area EA can be expanded in the first direction DR1 toward at least one side. In other words, depending on the sliding direction of the display touch module 300_3, the exposed area EA can be expanded along one side in the first direction DR1 (e.g., +DR1), along the other side in the first direction DR1 (e.g., -DR1), or along both sides in the first direction DR1 (e.g., +DR1 and -DR1).

[0137] Even in this embodiment, the screen can be displayed in the non-exposed areas CA1 and / or CA2 of the effective area AAR by sensing the capacitance of the touch component 320, calculating the exposure boundaries EB1 and EB2, and determining the exposure boundaries EB1 and EB2. Therefore, unnecessary power consumption of the display device 10_3 can be reduced compared to the embodiment that displays images in the non-exposed areas CA1 and / or CA2. Furthermore, as the display touch module 300_3 slides, various screen driving methods can be provided in the expanded exposed area EA, increasing user convenience.

[0138] Figure 16 This is a cross-sectional view of a display device according to yet another embodiment.

[0139] refer to Figure 16 According to this embodiment, the display touch module 300_4 of the display device 10_4 and Figure 2 The difference in the implementation of the display touch module 300 is that it is bent or folded inward.

[0140] exist Figure 16 In the illustrated embodiment, the display touch module 300_4 according to this embodiment can be bent inward. In this embodiment, the first non-bent area NBA1 and the second non-bent area NBA2 can be bent such that their front surfaces face each other (e.g., the images displayed by the first non-bent area NBA1 and the second non-bent area NBA2 face each other), and the area of ​​the display screen of the display touch module 300_4 can be partially covered.

[0141] The non-exposed area CA of the display touch module 300_4 according to this embodiment may include a second non-curved area NBA2 and a curved area BA, and may further include at least a portion of the first non-curved area NBA1, but this disclosure is not limited thereto. The exposed area EA of the display touch module 300_4 may include at least a portion of the first non-curved area NBA1. As the display touch module 300_4 slides, the exposed area EA can expand.

[0142] Even in this embodiment, the screen can be displayed in the non-exposed area CA of the effective area AAR by sensing the capacitance of the touch component 320, calculating the exposure boundary EB, and determining the exposure boundary EB. Therefore, compared with the embodiment that displays the image in the non-exposed area CA, unnecessary power consumption of the display device 10_4 can be reduced. Furthermore, as the display touch module 300_4 slides, various screen driving methods can be provided in the expanded exposed area EA, and user convenience can be increased.

[0143] In summarizing the detailed description, those skilled in the art will understand that many variations and modifications can be made to the embodiments without substantially departing from the principles of this disclosure. Therefore, the embodiments of this disclosure are used in a general and descriptive sense only and not for limiting purposes.

Claims

1. A display device, comprising: case; The display touch module includes a non-exposed area covered by the housing, an exposed area located outside the housing, and an effective area distributed throughout the non-exposed area and the exposed area. The display touch module includes a display component configured as a display screen and a touch component on the display component and configured to sense touch input. The touch component includes a drive line and a sensing line. as well as A boundary determination component is configured to sense the capacitance of the touch component and, based on the capacitance of the touch component in the exposed area and the capacitance of the touch component in the non-exposed area, calculate the coordinates of the exposed boundary between the exposed area and the non-exposed area of ​​the display touch module. The capacitance of the touch component in the exposed area includes the mutual capacitance between the drive line and the sensing line, and the capacitance of the touch component in the non-exposed area includes: the mutual capacitance between the drive line and the sensing line, the self-capacitance between the drive line and the housing, and the self-capacitance between the sensing line and the housing. The display device is configured to adjust the display range of the effective area based on the coordinates of the exposed boundary calculated by the boundary determining component.

2. The display device according to claim 1, wherein, The coordinates of the exposed boundary change according to the sliding of the display touch module.

3. The display device according to claim 2, in, The display device is configured to display an image in the area of ​​the effective area within the exposed area, and The display device is configured to not display an image in the area of ​​the effective area within the non-exposed area.

4. The display device according to claim 3, wherein, When the exposed area expands according to the sliding of the display touch module, the image displayed in the exposed area expands.

5. The display device according to claim 1, in, The display touch module is a flexible display touch module, and further includes a curved region and a first non-curved region and a second non-curved region on opposite sides of the curved region. The first non-curved region and the second non-curved region overlap each other in the thickness direction.

6. The display device according to claim 5, wherein, The exposed area includes at least a portion of the curved area and the first non-curved area, and The display device is configured to display an image in the area of ​​the effective region within the exposed region, and is also configured not to display an image in the area of ​​the effective region within the non-exposed region.

7. The display device according to claim 6, wherein, The display device is configured to display the image in the first non-curved region and to not display the image in the curved region.

8. The display device according to claim 1, wherein, The boundary determination component includes a sensor configured to sense the capacitance of the touch component and a boundary calculator configured to calculate the coordinates of the exposed boundary.

9. The display device according to claim 8, wherein, The sensor is electrically connected to the sensing line.

10. The display device according to claim 1, wherein, The boundary determining component is configured to sense the mutual capacitance and self-capacitance of the touch component.

11. A method of driving a display device, the display device including a display touch module, the display touch module including a display member for displaying an image and a touch member on the display member and configured to sense touch input, the touch member including a drive line and a sensing line, the display touch module including a non-exposed area covered by a housing and an exposed area located outside the housing, the method comprising: The capacitance of the touch component is measured, and based on the capacitance of the touch component in the exposed area and the capacitance of the touch component in the non-exposed area, the coordinates of the exposure boundary between the exposed area and the non-exposed area are determined. The capacitance of the touch component in the exposed area includes the mutual capacitance between the drive line and the sensing line, and the capacitance of the touch component in the non-exposed area includes: the mutual capacitance between the drive line and the sensing line, the self-capacitance between the drive line and the housing, and the self-capacitance between the sensing line and the housing; and The area of ​​the display component that displays the image is adjusted according to the coordinates of the exposed boundary.

12. The method according to claim 11, wherein, Determining the coordinates of the exposed boundary includes comparing the measured value of the capacitance with a capacitance threshold.

13. The method according to claim 12, wherein, Determining the coordinates of the exposed boundary includes calculating the coordinates when the measured capacitance value is equal to the capacitance threshold.

14. The method according to claim 13, wherein, For each frame, the coordinates of the exposed boundary are determined, wherein the touch component is actuated at that frame, and Specifically, when the coordinates of the exposed boundary calculated in the nth frame are the same as the coordinates of the exposed boundary calculated in the (n-1)th frame, determining the coordinates of the exposed boundary further includes increasing the frame count.

15. The method according to claim 14, wherein, When the frame count is equal to or greater than the frame count threshold, the area of ​​the display component displaying the image is adjusted according to the coordinates of the exposed boundary.

16. The method according to claim 11, wherein, The capacitance measured in the coordinates that determine the exposed boundary is mutual capacitance and self-capacitance.

17. The method of claim 11, wherein in determining the coordinates of the exposed boundary, the coordinates of the exposed boundary change according to the sliding of the display touch module.

18. The method of claim 17, further comprising: When the exposed area expands according to the sliding of the display touch module, the image displayed in the exposed area is expanded.

19. The method according to claim 11, wherein, The display touch module is a flexible display touch module, and further includes a curved region and a first non-curved region and a second non-curved region located on opposite sides of the curved region, and The first non-curved region and the second non-curved region overlap each other in the thickness direction.

20. The method according to claim 19, wherein, The exposed area includes at least a portion of the curved area and the first non-curved area, and the method includes displaying the image in the first non-curved area and not displaying the image in the curved area.

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