Display device setting touch area corresponding to each of display areas

Abstract

A display device includes: a display driver for driving a display panel of the display device to display an image, and generating a mode control signal indicating whether the display panel includes at least one of a first display area and a second display area; and a sensor driver for setting a touch sensitivity of a first touch area of the display device corresponding to the first display area and a touch sensitivity of a second touch area of the display device corresponding to the second display area based on the mode control signal.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims the priority of Korean Patent Application No. 10-2023-0139819 filed in the Korean Intellectual Property Office on October 18, 2023, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to a display device having a touch sensor. Background Art

[0004] The display device serves as a connection medium between a user and information. Examples of the display device include a liquid crystal display device and an organic light emitting display device.

[0005] The display device may include a display panel for displaying an image and a touch sensor for sensing a touched position. The display panel displays a predetermined image corresponding to a driving signal provided from a display driver. The touch sensor senses an external input corresponding to a touch signal provided from a sensor driver.

[0006] Such a display device can display images having various contents. For example, the display device can display various types of images such as still images, web pages, and images for movies or electronic games. In the case of displaying still images on the display device, frequent frame conversion is not required. On the other hand, in the case of displaying images for movies or electronic games on the display device, frequent frame conversion is required.

[0007] However, when frequent frame switching is required, a large amount of power may be consumed. In addition, the display device may need to be refreshed using different refresh rates. However, due to the use of these different refresh rates, visibility may be reduced. Summary of the invention

[0008] At least one embodiment of the present disclosure provides a display device that sets a touch area corresponding to each of respective display areas based on a signal including information about the display areas.

[0009] According to an aspect of the present disclosure, a display device is provided, comprising: a display driver and a sensor driver. The display driver is configured to drive a display panel to display an image, and to generate a mode control signal indicating whether the display panel includes at least one of a first display area and a second display area. The sensor driver is configured to set the touch sensitivity of a first touch area of ​​the display device corresponding to the first display area and the touch sensitivity of the second touch area of ​​the display device to be different from each other based on the mode control signal.

[0010] The display driver may output a mode control signal to the sensor driver for each period of the vertical synchronization signal.

[0011] The viewing angle of the first display area may be smaller than the viewing angle of the second display area.

[0012] When the display panel includes the first display area, the mode control signal may include at least one pulse.

[0013] The sensor driver may include: a first logic circuit, a second logic circuit, and a touch controller. The first logic circuit is configured to output an enable signal when the voltage level of the mode control signal changes. The second logic circuit is configured to determine the first display area based on the mode control signal in response to receiving the enable signal, and generate a first touch control signal indicating the first display area. The touch controller is configured to determine the first touch area based on the first touch control signal, and provide a first drive signal to the first touch area.

[0014] The second logic circuit may determine the range of the first display area according to the pulse width of the mode control signal.

[0015] The second logic circuit may determine the range of the first display area according to the number of pulses included in the mode control signal.

[0016] When the voltage level of the mode control signal remains unchanged, the mode determiner may output a second touch control signal. When the touch controller receives the second touch control signal, the touch controller may provide a second driving signal to the sensor.

[0017] The number of pulses included in the first driving signal may be greater than the number of pulses included in the second driving signal.

[0018] The slew rate of the first driving signal may be higher than the slew rate of the second driving signal.

[0019] The touch sensitivity of the first touch area may be higher than the touch sensitivity of the second touch area.

[0020] According to an aspect of the present disclosure, a display device is provided, comprising: a display driver and a sensor driver. The display driver is configured to drive a display panel to display an image, generate a mode control signal indicating whether the display panel includes at least one of a first display area and a second display area, and generate a coded signal by encoding a vertical synchronization signal and the mode control signal. The sensor driver is configured to set the touch sensitivity of a first touch area corresponding to the first display area of ​​the display device and the touch sensitivity of the second touch area of ​​the display device to be different from each other based on the coded signal.

[0021] The viewing angle of the first display area may be smaller than the viewing angle of the second display area.

[0022] The sensor driver may determine the range of the first display area according to the width of the pulse of the encoding signal.

[0023] The display driver may include: a signal generator configured to generate a mode control signal including a number of pulses corresponding to the range of the first display area when the display panel includes the first display area; and an encoder configured to generate an encoded signal by encoding the mode control signal and a vertical synchronization signal.

[0024] The display driver may include: a signal generator configured to output a pulse signal having a first duration as a mode control signal during a first period when the display panel includes a first display area, and to output a pulse signal having a second duration different from the first duration during a second period after the first period; and an encoder configured to generate an encoded signal by encoding the mode control signal and a vertical synchronization signal.

[0025] The signal generator may control a pulse included in the mode control signal during the second period according to a range of the first display area.

[0026] According to an aspect of the present disclosure, a display device is provided, comprising: a display driver and a sensor driver. The display driver is configured to drive a display panel of the display device to display an image, generate a mode control signal indicating whether the display panel includes at least one of a first display area and a second display area, and generate a coded signal by encoding a horizontal synchronization signal and the mode control signal. The sensor driver is configured to set the touch sensitivity of a first touch area of ​​the display device corresponding to the first display area and the touch sensitivity of a second touch area of ​​the display device corresponding to the second display area to be different from each other.

[0027] The viewing angle of the first display area may be smaller than the viewing angle of the second display area.

[0028] The display driver may include: a signal generator configured to output a pulse signal as a mode control signal during a control period in a frame period when the display panel includes a first display area; and an encoder configured to generate an encoded signal by encoding the mode control signal and a horizontal synchronization signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a diagram illustrating a display device according to an embodiment of the present disclosure.

[0030] Figure 2 It is shown that the Figure 1 The diagram shown in FIG. 1 is a diagram of an embodiment of a sensor in a display device.

[0031] Figure 3 and Figure 4 is a diagram showing a touch sensing period.

[0032] Figure 5 It is shown Figure 1 A block diagram of an embodiment of a display driver and a sensor driver is shown in FIG.

[0033] Figure 6 It is shown Figure 5 FIG. 4 is a diagram of an implementation of a mode control signal shown in FIG.

[0034] Figure 7 It is shown Figure 1 A block diagram of an embodiment of a display driver and a sensor driver is shown in FIG.

[0035] Figure 8 It is shown Figure 7 FIG. 4 is a diagram of an implementation of the mode control signal and the first encoded signal shown in FIG.

[0036] Fig. 9 It is shown Figure 7 FIG. 4 is a diagram of an implementation of the mode control signal and the first encoded signal shown in FIG.

[0037] Fig.10 It is shown Figure 7 FIG. 4 is a diagram of an implementation of the mode control signal and the first encoded signal shown in FIG.

[0038] Fig.11 It is shown Figure 1 A block diagram of an embodiment of a display driver and a sensor driver is shown in FIG.

[0039] Fig.12 It is shown Fig.11 0048] Figure 2 is a diagram of an embodiment of the mode control signal and the second encoded signal shown in FIG.

[0040] Fig.13 and Fig.14 is a diagram illustrating an embodiment of a first touch signal provided to a first touch area. DETAILED DESCRIPTION

[0041] Hereinafter, exemplary embodiments are described in detail with reference to the accompanying drawings so that those skilled in the art can practice the present disclosure. The present disclosure can be implemented in various different forms and is not limited to the exemplary embodiments described in this specification. Throughout the specification, the same parts are represented by the same reference numerals.

[0042] In addition, terms including “unit”, “module”, etc. used herein refer to a unit that performs at least one function or operation, and the unit, module, etc. may be implemented as hardware, software, or a combination of hardware and software.

[0043] Figure 1 is a diagram illustrating a display device according to an embodiment of the present disclosure.

[0044] refer to Figure 1 The display device 1 may include a panel 10 and a driving circuit 20 for driving the panel 10 .

[0045] The panel 10 may include a display unit 110 (e.g., a display panel) for displaying an image and a sensor unit 120 (e.g., a sensor device) for sensing touch, pressure, fingerprint, hovering, biometric information (or biometrics), etc. For example, the panel 10 may include pixels PX and sensors SC. One or more of the sensors SC may overlap with one or more of the pixels PX. In an embodiment, the sensor SC may include a first sensor TX (or a driving electrode) and a second sensor RX (or a sensing electrode). In another embodiment (e.g., a self-capacitance mode), the sensor SC may be configured with a single type of sensor without distinguishing the first sensor TX and the second sensor RX from each other.

[0046] The driving circuit 20 may include a display driver (D-IC) 210 for driving the display unit 110 and a sensor driver (T-IC) 220 for driving the sensor unit 120. The display driver (D-IC) 210 and the sensor driver (T-IC) 220 may each be an integrated circuit. For example, the pixel PX may display an image by using a display frame period as a unit. For example, the pixel PX may display an image in each display frame period. For example, the sensor SC may sense the user's input by using a sensing frame period as a unit. For example, the sensor SC may sense the input in each sensing frame period. The sensing frame period and the display frame period may be independent of each other or different from each other. The sensing frame period and the display frame period may be synchronized or asynchronous with each other.

[0047] According to an embodiment, after the display unit 110 and the sensor unit 120 are manufactured separately from each other, the display unit 110 and the sensor unit 120 may be arranged and / or coupled to overlap each other in at least one region. Alternatively, in another embodiment, the display unit 110 and the sensor unit 120 may be manufactured integrally. For example, the sensor unit 120 may be directly formed on at least one substrate constituting the display unit 110 (e.g., an upper substrate and / or a lower substrate of a display panel or a thin film encapsulation layer) or on another insulating layer or on one of various types of functional layers (e.g., an optical layer or a protective layer).

[0048] although Figure 1The sensor unit 120 is shown to be disposed on the front surface (e.g., the upper surface on which an image is displayed) of the display unit 110, but the position of the sensor unit 120 is not limited thereto. For example, in another embodiment, the sensor unit 120 may be disposed on the rear surface or both surfaces of the display unit 110. In yet another embodiment, the sensor unit 120 may be disposed on at least one edge region of the display unit 110.

[0049] The display unit 110 may include a display substrate 111 and a plurality of pixels PX formed on the display substrate 111. The pixels PX may be disposed in a display area DA of the display substrate 111.

[0050] The display substrate 111 may include a display area DA in which an image is displayed and a non-display area NDA at the periphery of the display area DA. According to an embodiment, the display area DA may be disposed in a central area of ​​the display unit 110, and the non-display area NDA may be disposed in an edge area of ​​the display unit 110 to surround the display area DA.

[0051] The display unit 110 may include at least one of a first display area and a second display area. In an embodiment, the viewing angle of the first display area is smaller than the viewing angle of the second display area. For example, a user viewing the first display area at the side of the display device 1 cannot observe any image output in the first display area. For example, a user viewing the second display area at the side of the display device 1 can observe the image output in the second display area. For example, when the user views the first display area at the side of the display device 1, the image may appear blurry, but when the user views the second display area at the side of the display device 1, the image may appear clear.

[0052] In an embodiment, an area other than the first display area in the display unit 110 may be a second display area. For example, when the upper half of the display unit 110 is the first display area, the lower half of the display unit 110 may be the second display area. In an embodiment, the right half of the display unit 110 is the first display area, and the left half of the display unit 110 is the second display area. In an embodiment, the entire display unit 110 is the first display area, and the display unit 110 does not include the second display area. In an embodiment, the entire display unit 110 is the second display area, and the display unit 110 does not include the first display area. However, the present disclosure is not limited thereto, and the first display area and the second display area may be variably set according to the user's setting.

[0053] The display substrate 111 may be a rigid substrate or a flexible substrate, but there is no particular limitation on the material or properties of the display substrate 111. For example, the display substrate 111 may be a rigid substrate made of glass or tempered glass, or a flexible substrate provided with a thin film made of plastic or metal.

[0054] Scan lines SL and data lines DL and pixels PX connected to the scan lines SL and the data lines DL are arranged in the display area DA. The pixels PX are selected by the scan signals having a conduction level provided from the scan lines SL to be provided with data signals from the data lines DL and emit light having a brightness corresponding to the data signals. Therefore, an image corresponding to the data signals is displayed in the display area DA. In the present disclosure, there is no particular limitation on the structure, driving method, etc. of the pixels PX. For example, each of the pixels PX may be implemented as a pixel having various structures and / or various driving methods currently known in the art.

[0055] Various types of lines and / or built-in circuits connected to the pixels PX of the display area DA may be disposed in the non-display area NDA. In an example, a plurality of lines for supplying various power supplies and various control signals to the display area DA may be disposed in the non-display area NDA. In addition, a scan driver and the like may be further disposed in the non-display area NDA.

[0056] In the present disclosure, the type of display unit 110 is not particularly limited. For example, the display unit 110 can be implemented as a self-luminous display panel such as an organic light-emitting display panel. However, when the display unit 110 is implemented as a self-luminous display panel, each of the pixels PX is not limited to a pixel PX that only includes an organic light-emitting element. For example, the light-emitting element of each of the pixels PX can be configured as an organic light-emitting diode, an inorganic light-emitting diode, a quantum dot / well light-emitting diode, etc. A plurality of light-emitting elements can be arranged in each of the pixels PX. A plurality of light-emitting elements can be connected in series, in parallel, in series / in parallel, etc. Optionally, the display unit 110 can be implemented as a non-luminous display panel such as a liquid crystal display panel. When the display unit 110 is implemented as a non-luminous display panel, the display device 1 may additionally include a light source such as a backlight unit (e.g., backlight).

[0057] The sensor unit 120 may include a sensor substrate 121 and a plurality of sensors SC disposed on the sensor substrate 121. The sensors SC may be disposed on the sensor substrate 121 in a sensing area SA.

[0058] The sensor substrate 121 may include a sensing area SA capable of sensing a touch input or the like and a peripheral area NSA at the periphery of the sensing area SA. In some embodiments, the sensing area SA may be arranged to overlap with at least one area of ​​the display area DA. In an example, the sensing area SA may be set to an area corresponding to the display area DA (e.g., an area overlapping the display area DA), and the peripheral area NSA may be set to an area corresponding to the non-display area NDA (e.g., an area overlapping the non-display area NDA). When a touch input or the like is applied to the display area DA, the touch input may be detected by the sensor unit 120.

[0059] The sensor substrate 121 may be a rigid substrate or a flexible substrate. In addition, the sensor substrate 121 may be configured with at least one insulating layer. Although the sensor substrate 121 may be a transparent or translucent light-transmitting substrate, the present disclosure is not limited thereto. That is, in the present disclosure, the material and properties of the sensor substrate 121 are not particularly limited. For example, the sensor substrate 121 may be a rigid substrate configured with glass or tempered glass, or a flexible substrate configured with a thin film made of plastic or metal. In some embodiments, at least one substrate constituting the display unit 110 (e.g., a display substrate 111, an encapsulation substrate, and / or a thin film encapsulation layer) or at least one insulating layer, at least one functional layer, etc. provided at the inner surface and / or outer surface of the display unit 110 may be used as the sensor substrate 121.

[0060] The sensing area SA is set as an area that can react or respond to a touch input (ie, an active area of ​​the sensor SC). A plurality of sensors SC for sensing a touch input, etc. may be disposed in the sensing area SA. In some embodiments, the sensor SC may include a first sensor TX and a second sensor RX.

[0061] For example, each of the first sensors TX may extend in the first direction DR1. The first sensors TX may be arranged in the second direction DR2. The second direction DR2 may be different from the first direction DR1. For example, the second direction DR2 may be a direction intersecting the first direction DR1. Each of the first sensors TX may have a form in which a first cell having a relatively wide area and a first bridge having a relatively narrow area are connected to each other. Although Figure 1 , each of the first cells has a diamond shape, but each of the first cells may be configured in various shapes including a circular shape, a quadrilateral shape, a triangular shape, a grid shape, etc. For example, the first bridge may be formed integrally with the first cell on the same layer. In another embodiment, the first bridge may be formed in a layer different from that of the first cell to electrically connect adjacent first cells to each other.

[0062] For example, each of the second sensors RX may extend in the second direction DR2. The second sensors RX may be arranged in the first direction DR1. Each of the second sensors RX may have a form in which a second cell having a relatively wide area and a second bridge having a relatively narrow area are connected to each other. Figure 1 , each of the second cells has a diamond shape, but each of the second cells may be configured in various shapes including a circular shape, a quadrilateral shape, a triangular shape, a grid shape, etc. For example, the second bridge may be formed integrally with the second cell on the same layer. In another embodiment, the second bridge may be formed in a layer different from that of the second cell to electrically connect adjacent second cells to each other.

[0063] In some embodiments, each of the first sensor TX and the second sensor RX may include at least one of a metal material, a transparent conductive material, and various other conductive materials, thereby having conductivity. In an example, the first sensor TX and the second sensor RX may include at least one of various metal materials including gold (Au), silver (Ag), aluminum (Al), molybdenum (Mo), chromium (Cr), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), platinum (Pt), etc. and alloys thereof. The first sensor TX and the second sensor RX may be configured in a grid shape. In addition, the first sensor TX and the second sensor RX may include a material including silver nanowires (AgNW), indium tin oxide (ITO), indium zinc oxide (IZO), indium gallium zinc oxide (IGZO), antimony zinc oxide (AZO), indium tin zinc oxide (ITZO), zinc oxide (ZnO), tin oxide (SnO 2 ), carbon nanotubes, graphene, etc. In addition, the first sensor TX and the second sensor RX may include at least one of various conductive materials to have conductivity. In addition, each of the first sensor TX and the second sensor RX may be configured as a single layer or a multilayer, but the cross-sectional structure thereof is not limited thereto.

[0064] Sensor lines or the like for electrically connecting the first sensor TX and the second sensor RX to the sensor driver 220 may be disposed in the peripheral area NSA. For example, the sensor lines may be concentrically disposed in the peripheral area NSA.

[0065] The driving circuit 20 may include a display driver 210 for driving the display unit 110 and a sensor driver 220 for driving the sensor unit 120. In an embodiment, the display driver 210 and the sensor driver 220 may be configured as an integrated chip (IC) separated from each other. In another embodiment, at least a portion of the display driver 210 and at least a portion of the sensor driver 220 may be integrated together in one IC.

[0066] The display driver 210 is electrically connected to the display unit 110 to drive the pixels PX. For example, the display driver 210 may include a data driver (e.g., a first driver circuit) and a timing controller (e.g., a controller circuit), and a scan driver (e.g., a second driver circuit) may be separately installed in the non-display area NDA of the display unit 110. In another embodiment, the display driver 210 may include all or at least some of the data driver, the timing controller, and the scan driver.

[0067] The display driver 210 may be provided with image data and control signals from the application processor. An oscillator (not shown) for generating a first clock signal may be located inside the display driver 210. The display driver 210 may determine a driving frequency (or frame rate) using a synchronization signal included in the control signal, and may generate various signals including a vertical synchronization signal Vsync and a horizontal synchronization signal Hsync by dividing the first clock signal.

[0068] In an example, an external vertical synchronization signal, an external horizontal synchronization signal, etc. may be included in the control signal provided from the application processor to the display driver 210. The display driver 210 may generate a vertical synchronization signal Vsync and a horizontal synchronization signal Hsync to be used inside the display device 1 using the external vertical synchronization signal and the external horizontal synchronization signal.

[0069] In addition, the display driver 210 may be provided with an external mode control signal from the application processor. In an embodiment, the external mode control signal includes data for setting the first display area and the second display area.

[0070] The display driver 210 may set the first display area and the second display area of ​​the display unit 110 based on the external mode control signal. The display driver 210 may generate the mode control signal based on the first display area and the second display area set in the display unit 110 in the current frame.

[0071] The sensor driver 220 may set a first touch area corresponding to the first display area and a second touch area corresponding to the second display area based on the mode control signal. For example, when the first display area is set at the upper half of the display unit 110 and the second display area is set at the lower half of the display unit 110, the sensor driver 220 may set the first touch area at the upper half of the sensor unit 120 and the second touch area at the lower half of the sensor unit 120.

[0072] When the first display area is set at the left half of the display unit 110 and the second display area is set at the right half of the display unit 110, the sensor driver 220 may set the first touch area at the left half of the sensor unit 120 and the second touch area at the right half of the sensor unit 120.

[0073] In an embodiment, the first touch area has a higher touch sensitivity than that of the second touch area. In an embodiment, the sensor driver 220 controls the sensor unit 120 so that the touch sensitivity of the first touch area becomes higher than that of the second touch area.

[0074] The display driver 210 may transmit information of the first display area and the second display area to the sensor driver 220 through a mode control signal separate from the vertical synchronization signal Vsync and the horizontal synchronization signal Hsync.

[0075] In an implementation, the display driver 210 includes a dedicated pin for transmitting a mode control signal, and the sensor driver 220 may include a dedicated pin (not shown) for receiving a mode control signal.

[0076] Since the mode control signal includes information of the first display area and the second display area, the time required for the sensor driver 220 to set the first touch area and the second touch area can be shortened, and the power consumed by the sensor driver 220 to set the first touch area and the second touch area can be reduced.

[0077] Figure 2 It is shown that the Figure 1 The diagram shown in FIG. 1 is a diagram of an embodiment of a sensor in a display device.

[0078] refer to Figure 1 and Figure 2 , exemplarily showing first sensors TX1, TX2, TX3 and TX4 and second sensors RX1, RX2, RX3 and RX4 located in the sensing area SA. For ease of description, it is assumed that four first sensors TX1 to TX4 are disposed in the sensing area SA, and four second sensors RX1 to RX4 are disposed in the sensing area SA. Here, there may be y to p first sensors TX and y to p second sensors RX, where y is a natural number greater than 0, and p is a natural number greater than y.

[0079] The description of the first sensors TX1 to TX4 and the second sensors RX1 to RX4 is the same as Figure 1 The descriptions of the first sensor TX and the second sensor RX shown in FIG. 5 are the same, and therefore, overlapping descriptions will be omitted.

[0080] Figure 3 and Figure 4 is a diagram showing a touch sensing period.

[0081] refer to Figures 1 to 4 , the touch sensing period may be a period in which the sensor unit 120 and the sensor driver 220 sense an external touch. Figure 3 , driving of the sensor unit 120 and the sensor driver 220 during a touch sensing period will be illustrated based on one sensing channel 222 .

[0082] The sensor driver 220 may include a sensor receiver TSC (eg, a touch sensing circuit) and a sensor transmitter TDC (eg, a touch driving circuit). In a touch sensing period, the sensor transmitter TDC may be connected to the first sensor TX, and the sensor receiver TSC may be connected to the second sensor RX.

[0083] The sensor receiver TSC may include an operational amplifier AMP, an analog-to-digital converter 224 (e.g., ADC), and a processor 226. For example, the processor 226 may be a microprocessor (MPU). In an example, each sensing channel 222 may be implemented as an analog front end (AFE) including at least one operational amplifier AMP. The analog-to-digital converter 224 and the processor 226 may be provided for each sensing channel 222 and shared by a plurality of sensing channels 222.

[0084] The first input terminal IN1 of the operational amplifier AMP may be connected to the corresponding second sensor RX, and the second input terminal IN2 of the operational amplifier AMP may be connected to the ground GND. For example, the first input terminal IN1 may be an inverting terminal, and the second input terminal IN2 may be a non-inverting terminal. In some embodiments, the second input terminal IN2 may be connected to a signal having a voltage of a specific magnitude.

[0085] The analog-to-digital converter 224 may be connected to the output terminal OUT1 of the operational amplifier AMP. The analog-to-digital converter 224 may convert the output of the operational amplifier AMP into a sensed value in digital form and then output the sensed value. The capacitor Ca and the switch SWr may be connected in parallel between the first input terminal IN1 and the output terminal OUT1.

[0086] refer to Figure 4During the touch sensing period, the sensor driver 220 (e.g., the sensor transmitter TDC) may provide a driving signal Sdr to each of the first sensors TX1 to TX4. In an embodiment, the driving signal Sdr is an alternating current (AC) signal having a predetermined period such as a pulse wave. One period P1 in which the first sensors TX1 to TX4 are sequentially driven may include a plurality of sub-periods SP1 to SP4 in which the driving signal Sdr is provided to each of the first sensors TX1 to TX4.

[0087] Due to the mutual capacitance Cse formed by each of the first sensors TX1 to TX4 and the second sensors RX1 to RX4 at the periphery thereof, a sensing signal Sse corresponding to the driving signal Sdr applied to the first sensors TX1 to TX4 may be output by the second sensors RX1 to RX4. The sensing signal Sse may be input to the sensor receiver TSC and used for detection of a touch input. In an embodiment, Figure 4 The driving signal Sdr shown in is provided to the second touch area.

[0088] In an embodiment, when the sensor unit 120 is Figure 1 When a plurality of second sensors RX are included as shown in FIG, the sensor receiver TSC includes a plurality of sensing channels (or receiving channels) 222 electrically connected to each of the second sensors RX. The sensor receiver TSC may receive a sensing signal Sse from each of the second sensors RX through the sensing channel 222, and detect a touch input by synthesizing the received sensing signal Sse.

[0089] Figure 5 It is shown Figure 1 A block diagram of an embodiment of a display driver and a sensor driver is shown in FIG.

[0090] refer to Figure 5 , the display driver 210 can output a vertical synchronization signal Vsync, a horizontal synchronization signal Hsync and a mode control signal MCS.

[0091] The display driver 210 may include a signal generator 212 and an oscillator. The oscillator may generate a clock signal to be used inside the display driver 210.

[0092] The signal generator 212 may be provided with a control signal CTR and an external mode control signal MCS_int from the outside (e.g., an application processor, etc.). The signal generator 212 provided with the control signal CTR may generate a vertical synchronization signal Vsync and a horizontal synchronization signal Hsync by dividing a clock signal. The period of the vertical synchronization signal Vsync may correspond to a frame period. The frame period may mean a period in which an image of one screen is displayed on the display unit 110.

[0093] The period of the horizontal synchronization signal Hsync may correspond to a horizontal period. The horizontal period may mean a period in which data signals are supplied to pixels PX located on one horizontal line (eg, a pixel row on which pixels PX connected to the same scan line SL are located).

[0094] The signal generator 212 provided with the external mode control signal MCS_int may generate the mode control signal MCS. The signal generator 212 may generate the mode control signal MCS for each cycle of the vertical synchronization signal Vsync, and output the generated mode control signal MCS to the sensor driver 220. That is, the signal generator 212 may transmit the mode control signal MCS to the sensor driver 220 based on the first display area and the second display area of ​​the display unit 110 set in the current frame.

[0095] In an implementation, the sensor driver 220 includes a mode determiner 221 (eg, a first logic circuit), an area determiner 223 (eg, a second logic circuit), and a touch controller 225 (eg, a controller circuit).

[0096] The mode determiner 221 may determine whether the display unit 110 includes the first display area based on the mode control signal MCS. When the voltage level of the mode control signal MCS changes, the mode determiner 221 may determine that the display unit 110 includes the first display area. That is, when the display unit 110 includes the first display area, the mode control signal MCS may include at least one pulse.

[0097] In an embodiment, when it is determined that the display unit 110 includes the first display area, the mode determiner 221 transmits the enable signal EN to the area determiner 223 .

[0098] When the area determiner 223 receives the enable signal EN, the area determiner 223 may determine the range of the first display area based on the mode control signal MCS. For example, the area determiner 223 may determine the size, area, and position of the first display area based on the mode control signal MCS. The area determiner 223 may transmit a first touch control signal TC1 including information about the first display area to the touch controller 225. In an embodiment, the first touch control signal TC1 includes information about the range of the first display area and the position of the first display area. For example, when the display area DA has a rectangular shape, the range may indicate a length and a width, or when the display area DA has a circular shape or an elliptical shape, the range may indicate one or more radii or diameters, but is not limited thereto. For example, the range may indicate various lengths or widths used to represent various other shapes.

[0099] When the voltage level of the mode control signal MCS remains unchanged or constant, the mode determiner 221 may determine that the display unit 110 does not include the first display area. For example, when the display unit 110 does not include the first display area, the entire display unit 110 may be set to the second display area.

[0100] When it is determined that the display unit 110 does not include the first display area, the mode determiner 221 may transmit the second touch control signal TC2 to the touch controller 225 .

[0101] The touch controller 225 may control the overall operation of the sensor driver 220. The sensor transmitter TDC and the sensor receiver TSC may be included in the touch controller 225. The touch controller 225 may control the sensor unit 120 based on the first touch control signal TC1 and the second touch control signal TC2.

[0102] When the touch controller 225 receives the first touch control signal TC1, the touch controller 225 may provide a first driving signal to a first touch area corresponding to the first display area, and provide a second driving signal to a second touch area different from the first touch area in the sensor unit 120.

[0103] For example, when the first touch control signal TC1 indicates that the first display area is the upper half of the display unit 110 , the touch controller 225 may provide the first driving signal to the upper half of the sensor unit 120 and the second driving signal to the lower half of the sensor unit 120 .

[0104] In another example, when the first touch control signal TC1 indicates that the first display area is the lower half of the display unit 110, the touch controller 225 may provide the first drive signal to the lower half of the sensor unit 120 and the second drive signal to the upper half of the sensor unit 120. Fig.13 and Fig.14 The first driving signal is described in detail.

[0105] When the touch controller 225 receives the second touch control signal TC2, the touch controller 225 may provide the second driving signal to the sensor unit 120. That is, the touch controller 225 may regard the entire sensor unit 120 as the second touch area.

[0106] In an embodiment, each of the display driver 210 and the sensor driver 220 includes a dedicated pin for transmitting / receiving the mode control signal MCS.

[0107] Figure 6 It is shown Figure 5FIG. 4 is a diagram of an implementation of the mode control signal MCS shown in FIG.

[0108] refer to Figure 5 and Figure 6 , shows the mode control signal MCS generated by the signal generator 212 for each period of the vertical synchronization signal Vsync between time t1 and time t2.

[0109] Referring to the mode control signal MCS having the pulse width wd, the signal generator 212 may control the pulse width wd of the pulse of the mode control signal MCS according to the range of the first display area of ​​the display unit 110 set in the current frame 1Frame.

[0110] For example, when the entire display unit 110 is set as the first display area, the signal generator 212 may generate a mode control signal MCS having a pulse width wd greater than a first reference value. When half of the display unit 110 is set as the first display area, the signal generator 212 may generate a mode control signal MCS having a pulse width wd that is the first reference value or less and greater than a second reference value.

[0111] The position of the half area of ​​the display unit 110 may be pre-specified according to the setting of the user of the display device 1. For example, the upper half of the display unit 110 is set as the first display area, or the lower half of the display unit 110 may be set as the first display area. The first reference value and the second reference value may be pre-specified according to the setting of the user of the display device 1.

[0112] When an area less than half of the display unit 110 is set as the first display area, the signal generator 212 may generate the mode control signal MCS having a pulse width wd of the second reference value or less. The position of the area less than half of the display unit 110 may be pre-specified according to a setting of a user of the display device 1.

[0113] Referring to the mode control signal MCS including a plurality of pulses during the pulse period pd, the signal generator 212 may generate the mode control signal MCS including a number of pulses corresponding to a range of the first display area of ​​the display unit 110 set in the current frame 1Frame.

[0114] For example, when the entire display unit 110 is the first display area, the signal generator 212 may generate a mode control signal MCS including a number of pulses greater than the third reference value. When half of the display unit 110 is the first display area, the signal generator 212 may generate a mode control signal MCS including a number of pulses that is the third reference value or less and greater than the fourth reference value. The position of the half area of ​​the display unit 110 may be pre-specified according to the setting of the user of the display device 1.

[0115] When the area less than half of the display unit 110 is the first display area, the signal generator 212 may generate the mode control signal MCS including pulses of the fourth reference value or less. The position of the area less than half of the display unit 110 may be pre-specified according to the setting of the user of the display device 1.

[0116] The area determiner 223 may determine the range of the first display area based on a pulse width wd of a pulse included in the mode control signal MCS or the number of pulses included in the mode control signal MCS.

[0117] For example, when the pulse width wd of the pulse included in the mode control signal MCS is the first reference value or less and is greater than the second reference value, the region determiner 223 may determine the first display region to be a half of the display unit 110 .

[0118] In addition, the area determiner 223 may determine the position of the first display area according to a pre-specified setting of the user. For example, when it is determined that half of the display unit 110 is the first display area, the area determiner 223 may determine whether the upper half of the display unit 110 is the first display area or the lower half of the display unit 110 is the first display area according to predetermined data. The predetermined data may be stored in a memory included in each of the display driver 210 and the sensor driver 220.

[0119] Figure 7 It is shown Figure 1 A block diagram of an embodiment of a display driver and a sensor driver is shown in FIG.

[0120] refer to Figure 7 , the display driver 210 may output the first encoding signal ENC1 and the horizontal synchronization signal Hsync to the sensor driver 220 .

[0121] Figure 7 The signal generator 212 and the touch controller 225 shown in FIG. Figure 5 The signal generator 212 and the touch controller 225 shown in FIG. 2 are similar, and thus, a detailed description will be omitted.

[0122] The display driver 210 may include a signal generator 212 , a first encoder 214 (eg, a logic circuit), and an oscillator. The oscillator (not shown) may generate a clock signal to be used inside the display driver 210 .

[0123] The signal generator 212 may generate the mode control signal MCS based on the first display area and the second display area of ​​the display unit 110 set in the current frame.

[0124] The first encoder 214 can encode the vertical synchronization signal Vsync and the mode control signal MCS to generate a first encoded signal ENC1. Figures 8 to 10 The implementation of the mode control signal MCS and the first encoding signal ENC1 is described in detail.

[0125] The sensor driver 220 may include a data determiner 227 (eg, a logic circuit) and a touch controller 225 (eg, a controller circuit).

[0126] The data determiner 227 may determine whether the display unit 110 includes the first display area based on the first encoding signal ENC1. When the display unit 110 includes the first display area, the data determiner 227 may determine the range of the first display area and the position of the first display area.

[0127] In an embodiment, the data determiner 227 may determine the range of the first display area based on the width of the pulse of the first encoding signal ENC1. This will be referred to later. Figure 8 Describe in detail.

[0128] In another embodiment, the data determiner 227 may determine the range of the first display area and the position of the first display area based on the data value corresponding to the first encoding signal ENC1. This will be referred to later. Fig. 9 and Fig.10 Describe in detail.

[0129] In yet another embodiment, the data determiner 227 may determine whether the display unit 110 includes the first display area based on a signal obtained by decoding the first encoding signal ENC1, and determine a range of the first display area and a position of the first display area.

[0130] When it is determined that the display unit 110 includes the first display area, the data determiner 227 may transmit the first touch control signal TC1 including the range of the first display area and the position of the first display area to the touch controller 225 .

[0131] When it is determined that the display unit 110 does not include the first display area, the data determiner 227 may transmit the second touch control signal TC2 to the touch controller 225 .

[0132] Figure 8 It is shown Figure 7 FIG. 4 is a diagram of an implementation of the mode control signal and the first encoded signal shown in FIG.

[0133] refer to Figure 7 and Figure 8, shows the mode control signal MCS and the first encoding signal ENC1 generated by the signal generator 212 during the period of the vertical synchronization signal Vsync between time t1 and time t2. The signal generator 212 may generate the mode control signal MCS and the first encoding signal ENC1 for each period of the vertical synchronization signal Vsync.

[0134] In an implementation, the signal generator 212 may generate the mode control signal MCS based on a range of a first display area of ​​the display unit 110 set in a current frame 1Frame.

[0135] The first encoder 214 may generate a first encoding signal ENC1 by encoding the vertical synchronization signal Vsync and the mode control signal MCS. Figure 8 , shows that the first encoder 214 performs a logical product (AND) operation on the vertical synchronization signal Vsync and the mode control signal MCS to generate a first encoding signal ENC1. However, the present disclosure is not limited thereto, and the first encoder 214 may use various encoding methods to generate the first encoding signal ENC1.

[0136] The data determiner 227 may determine the range of the first display area based on the pulse width wd of the pulse of the first encoding signal ENC1. For example, when the pulse width wd is greater than the first reference value, the data determiner 227 may determine the entire display unit 110 as the first display area.

[0137] When the pulse width wd is the first reference value or less and greater than the second reference value, the data determiner 227 may determine half of the display unit 110 as the first display area. When the half of the display unit 110 is determined as the first display area, the data determiner 227 may determine the position of the half area of ​​the display unit 110 according to a predetermined value.

[0138] For example, when half of the display unit 110 is determined as the first display area, the data determiner 227 may determine the upper half of the display unit 110 as the first display area based on a predetermined value.

[0139] When the pulse width wd is the second reference value or less, the data determiner 227 may determine an area less than half of the display unit 110 as the first display area. When an area less than half of the display unit 110 is determined as the first display area, the data determiner 227 may determine the position of the area less than half of the display unit 110 according to a predetermined value.

[0140] Fig. 9 It is shown Figure 7 FIG. 4 is a diagram of an implementation of the mode control signal and the first encoded signal shown in FIG.

[0141] refer to Figure 7 and Fig. 9 , shows the mode control signal MCS and the first encoding signal ENC1 generated by the signal generator 212 during the period of the vertical synchronization signal Vsync between time t1 and time t2. The signal generator 212 may generate the mode control signal MCS and the first encoding signal ENC1 for each period of the vertical synchronization signal Vsync.

[0142] The first encoding signal ENC1 may include a plurality of pulses. Fig. 9 The first encoded signal ENC1 shown in FIG. Figure 8 The encoding method of the first encoded signal ENC1 shown in FIG. 1 is generated by different encoding methods.

[0143] In an implementation, the signal generator 212 may generate the mode control signal MCS including a number of pulses corresponding to a range of the first display area of ​​the display unit 110 set in the current frame 1Frame.

[0144] For example, when the entire display unit 110 is the first display area, the signal generator 212 may generate a mode control signal MCS including a number of pulses greater than the third reference value. When half of the display unit 110 is the first display area, the signal generator 212 may generate a mode control signal MCS including a number of pulses that is the third reference value or less and greater than the fourth reference value. The position of the half area of ​​the display unit 110 may be pre-specified according to the setting of the user of the display device 1.

[0145] When the area less than half of the display unit 110 is the first display area, the signal generator 212 may generate the mode control signal MCS including pulses of the fourth reference value or less. The position of the area less than half of the display unit 110 may be pre-specified according to the setting of the user of the display device 1.

[0146] In an embodiment, the data determiner 227 may determine the range of the first display area based on the data value corresponding to the first encoding signal ENC1. The data determiner 227 may determine the position of the first display area according to a pre-specified value relative to the range of the first display area. For example, the pre-specified value relative to the range of the first display area may be the upper side of the display unit 110 or the lower side of the display unit 110.

[0147] In an embodiment, the data determiner 227 may determine the range of the first display area and the position of the first display area based on the data value corresponding to the first encoding signal ENC1. For example, the data determiner 227 may compare the data value corresponding to the first encoding signal ENC1 with a predetermined data value according to the range of the first display area and the position of the first display area, thereby determining the range of the first display area and the position of the first display area.

[0148] Fig.10 It is shown Figure 7 FIG. 4 is a diagram of an implementation of the mode control signal and the first encoded signal shown in FIG.

[0149] refer to Figures 7 to 10 , shows the mode control signal MCS and the first encoding signal ENC1 generated by the signal generator 212 during the period of the vertical synchronization signal Vsync between time t1 and time t2. The signal generator 212 may generate the mode control signal MCS and the first encoding signal ENC1 for each period of the vertical synchronization signal Vsync.

[0150] When the display unit 110 set in the current frame 1Frame includes the first display area, the signal generator 212 may output a pulse signal having a first duration as the mode control signal MCS during a period pd1 between time t1 and time t3. That is, the pulse signal having the first duration during the period pd1 may indicate whether the display unit 110 includes the first display area.

[0151] The signal generator 212 may output a pulse signal having a second duration as the mode control signal MCS during a period pd2 between time t3 and time t4 according to the range of the first display area set in the current frame 1Frame of the display unit 110. That is, the pulse signal having the second duration during the period pd2 may indicate the range of the first display area included in the display unit 110. The second duration may be different from the first duration.

[0152] In an implementation, the signal generator 212 may generate the mode control signal MCS including pulses of a number corresponding to the range of the first display area.

[0153] When the entire display unit 110 is the first display area, the signal generator 212 may generate a mode control signal MCS having a number of pulses greater than the third reference value. When half of the display unit 110 is the first display area, the signal generator 212 may generate a mode control signal MCS including a number of pulses that is the third reference value or less and greater than the fourth reference value. The position of the half area of ​​the display unit 110 may be pre-specified according to a setting of a user of the display device 1.

[0154] When the area less than half of the display unit 110 is the first display area, the signal generator 212 may generate the mode control signal MCS including pulses of the fourth reference value or less. The position of the area less than half of the display unit 110 may be pre-specified according to the setting of the user of the display device 1.

[0155] In an embodiment, the data determiner 227 may determine the range of the first display area based on the data value corresponding to the first encoding signal ENC1. The data determiner 227 may determine the position of the first display area according to a pre-specified setting of the user. For example, when half of the display unit 110 is determined as the first display area, the data determiner 227 may determine whether the upper half of the display unit 110 is the first display area or the lower half of the display unit 110 is the first display area according to the pre-specified setting of the user.

[0156] In an embodiment, the data determiner 227 may determine the range of the first display area and the position of the first display area based on the data value corresponding to the first encoding signal ENC1. For example, the data determiner 227 may compare the data value corresponding to the first encoding signal ENC1 with a predetermined data value according to the range of the first display area and the position of the first display area, thereby determining the range of the first display area and the position of the first display area.

[0157] Fig.11 It is shown Figure 1 A block diagram of an embodiment of a display driver and a sensor driver is shown in FIG.

[0158] refer to Fig.11 , the display driver 210 can output the second encoding signal ENC2 and the vertical synchronization signal Vsync to the sensor driver 220. Fig.11 The signal generator 212 and the touch controller 225 shown in FIG. Figure 5 The signal generator 212 and the touch controller 225 shown in FIG. 2 are similar, and thus, a detailed description will be omitted.

[0159] The display driver 210 may include a signal generator 212 , a second encoder 216 (eg, a logic circuit), and an oscillator. The oscillator may generate a clock signal to be used inside the display driver 210 .

[0160] Signal generator 212 may generate mode control signal MCS based on first and second display areas set in a current frame of display unit 110. When display unit 110 includes the first display area, signal generator 212 may output a pulse signal as mode control signal MCS during a control period in a frame period.

[0161] The second encoder 216 can encode the horizontal synchronization signal Hsync and the mode control signal MCS to generate a second encoding signal ENC2. Fig.13 The implementation of the mode control signal MCS and the second encoding signal ENC2 is described in detail.

[0162] The sensor driver 220 may include a data determiner 227 and a touch controller 225 .

[0163] The data determiner 227 may determine whether the display unit 110 includes the first display area based on the second encoding signal ENC2. When the display unit 110 includes the first display area, the data determiner 227 may determine the range of the first display area and the position of the first display area.

[0164] In an embodiment, the data determiner 227 may determine the range of the first display area and the position of the first display area based on the data value corresponding to the second encoding signal ENC2. This will be referred to later. Fig.12 Describe in detail.

[0165] In another embodiment, the data determiner 227 may determine whether the display unit 110 includes the first display area based on a signal obtained by decoding the second encoding signal ENC2, and determine a range of the first display area and a position of the first display area.

[0166] When it is determined that the display unit 110 includes the first display area, the data determiner 227 may transmit a first touch control signal TC1 including the range of the first display area and the position of the first display area to the touch controller 225. When it is determined that the display unit 110 does not include the first display area, the data determiner 227 may transmit a second touch control signal TC2 to the touch controller 225.

[0167] Fig.12 It is shown Fig.11 0048] Figure 2 is a diagram of an embodiment of the mode control signal and the second encoded signal shown in FIG.

[0168] refer to Fig.11 and Fig.12 , shows the horizontal synchronization signal Hsync, the mode control signal MCS, and the second encoding signal ENC2 generated by the signal generator 212 for each period of the vertical synchronization signal Vsync between time t1 and time t2.

[0169] When the display unit 110 set in the current frame 1Frame includes the first display area, the signal generator 212 may output a pulse signal as the mode control signal MCS during the period pd4 between time t6 and time t7. When the display unit 110 does not include the first display area, the signal generator 212 may output a signal without a pulse as the mode control signal MCS during the period pd4 between time t6 and time t7. The period pd4 between time t6 and time t7 may be designated as a control period in the period of the frame.

[0170] The data determiner 227 may identify the second encoding signal ENC2 as the horizontal synchronization signal Hsync during a period pd3 between time t5 and time t6 and a period pd5 between time t7 and time t8. The starting points t5 and t7 and the ending points t6 and t8 of the respective periods pd3 and pd5 in which the second encoding signal ENC2 is identified as the horizontal synchronization signal Hsync may be predefined according to the setting of the user of the display unit 110.

[0171] During the period pd4 between time t6 and time t7, the data determiner 227 can determine the range of the first display area and the position of the first display area based on the data value corresponding to the second encoding signal ENC2. For example, the data value according to the range of the first display area and the position of the first display area can be predefined by the user. In addition, the starting point t6 and the ending point t7 of the period pd4 in which the range of the first display area and the position of the first display area are determined based on the data value corresponding to the second encoding signal ENC2 can be predefined according to the user's setting.

[0172] Fig.13 and Fig.14 is a diagram illustrating an embodiment of a first touch signal provided to a first touch area.

[0173] refer to Fig.13 , shows the first driving signal Tdr provided by the touch controller 225 to the first sensors TX1 to TX4 included in the first touch area. When the first sensors TX1 to TX4 are driven sequentially, the period P1 may include a plurality of sub-periods SP1 to SP4 in which the first driving signal Tdr is provided to each of the first sensors TX1 to TX4.

[0174] when Figure 5 , Figure 7 and Fig.11 When the signal generator 212 shown in generates the mode control signal MCS based on the first display area set in the current frame, the touch controller 225 may provide the first driving signal Tdr to the first touch area during a next frame after the current frame.

[0175] The number of pulses of the first driving signal Tdr provided to the first touch area may be greater than Figure 4 The number of pulses of the drive signal Sdr is shown in . Figure 4 The driving signal Sdr shown in may be a second touch signal provided to the second touch area.

[0176] In an embodiment, the number of pulses of the first drive signal Tdr may be proportional to the range of the first display area. For example, the number of pulses of the first drive signal Tdr when the entire display unit is set as the first display area may be greater than the number of pulses of the first drive signal Tdr when half of the display unit is set as the first display area.

[0177] When the general Fig.13 The first driving signal Tdr provided to the first touch area shown in FIG. Figure 4 When compared with the driving signal Sdr shown in , the number of pulses of the first driving signal Tdr may be greater than the number of pulses of the driving signal Sdr. Therefore, the touch sensitivity of the first touch area may be higher than the touch sensitivity of the second touch area.

[0178] refer to Fig.14 , shows an example of the first driving signal Tdr provided by the touch controller 225 to the first sensor TX1 during the first sub-period SP1.

[0179] The slew rate of the first driving signal Tdr provided to the first touch region is a first value v1. The slew rate of the driving signal Sdr provided to the second touch region is a second value v2. In an embodiment, the first value v1 is greater than the second value v2.

[0180] In an embodiment, the first value v1 of the first drive signal Tdr may be proportional to the range of the first display area. For example, the first value v1 of the first drive signal Tdr when the entire display unit is set as the first display area may be greater than the first value v1 of the first drive signal Tdr when half of the display unit is set as the first display area.

[0181] When the slew rate of the first driving signal Tdr provided to the first touch region is greater than the slew rate of the driving signal Sdr provided to the second touch region, the touch sensitivity of the first touch region may be higher than the touch sensitivity of the second touch region.

[0182] In the display device according to the present disclosure, since the display device sets the touch area based on the signal including the information on the display area, the time required to set the touch area can be reduced, and the power consumption for setting the touch area can be reduced.

[0183] Exemplary embodiments have been disclosed herein, and although specific terms are used, they are used and interpreted only in a general and descriptive sense and not for purposes of limitation. In some cases, as will be apparent to one of ordinary skill in the art, unless otherwise specifically noted, features, characteristics, and / or elements described in conjunction with a particular embodiment may be used alone or in combination with features, characteristics, and / or elements described in conjunction with other embodiments. Therefore, it will be understood by those skilled in the art that various changes may be made in form and detail without departing from the spirit and scope of the present disclosure as set forth in the appended claims.

Claims

1. A display device, comprising: a display driver configured to drive a display panel of the display device to display an image, and generate a mode control signal indicating whether the display panel includes at least one of a first display area and a second display area; as well as The sensor driver is configured to set a touch sensitivity of a first touch area of ​​the display device corresponding to the first display area and a touch sensitivity of a second touch area of ​​the display device corresponding to the second display area to be different from each other based on the mode control signal.

2. The display device according to claim 1, wherein: The display driver outputs the mode control signal to the sensor driver for each period of a vertical synchronization signal.

3. The display device according to claim 1, wherein: The viewing angle of the first display area is smaller than the viewing angle of the second display area.

4. The display device according to claim 3, wherein: When the display panel includes the first display area, the mode control signal includes at least one pulse.

5. The display device according to claim 3, wherein: The sensor driver comprises: a first logic circuit configured to output an enable signal when a voltage level of the mode control signal changes; a second logic circuit configured to, in response to receipt of the enable signal, determine the first display area based on the mode control signal and generate a first touch control signal indicating the first display area; and The touch controller is configured to determine the first touch area based on the first touch control signal and provide a first driving signal to the first touch area.

6. The display device according to claim 5, wherein: The second logic circuit determines a range of the first display area according to a pulse width of the mode control signal.

7. The display device according to claim 5, wherein: The second logic circuit determines a range of the first display area according to the number of pulses included in the mode control signal.

8. The display device according to claim 5, wherein: When the voltage level of the mode control signal remains unchanged, the first logic circuit outputs a second touch control signal, and When the touch controller receives the second touch control signal, the touch controller provides a second driving signal to the sensor of the display device.

9. The display device according to claim 8, wherein: The number of pulses included in the first driving signal is greater than the number of pulses included in the second driving signal.

10. The display device according to claim 8, wherein: A slew rate of the first driving signal is higher than a slew rate of the second driving signal.

11. The display device according to claim 1, wherein: The touch sensitivity of the first touch area is higher than the touch sensitivity of the second touch area.

12. A display device, comprising: a display driver configured to drive a display panel of the display device to display an image, generate a mode control signal indicating whether the display panel includes at least one of a first display area and a second display area, and generate a coded signal by encoding a vertical synchronization signal and the mode control signal; as well as The sensor driver is configured to set the touch sensitivity of a first touch area of ​​the display device corresponding to the first display area and the touch sensitivity of a second touch area of ​​the display device corresponding to the second display area to be different from each other based on the encoded signal.

13. The display device according to claim 12, wherein: The viewing angle of the first display area is smaller than the viewing angle of the second display area.

14. The display device according to claim 12, wherein: The sensor driver determines a range of the first display area according to a pulse width of the encoding signal.

15. The display device according to claim 12, wherein: The display driver comprises: a signal generator configured to generate the mode control signal including a number of pulses corresponding to a range of the first display area when the display panel includes the first display area; and An encoder is configured to generate the encoded signal by encoding the mode control signal and the vertical synchronization signal.

16. The display device according to claim 12, wherein: The display driver comprises: a signal generator configured to output a pulse signal having a first duration as the mode control signal during a first period when the display panel includes the first display area, and to output a pulse signal having a second duration different from the first duration during a second period after the first period; and An encoder is configured to generate the encoded signal by encoding the mode control signal and the vertical synchronization signal.

17. The display device according to claim 16, wherein: The signal generator controls a pulse included in the mode control signal during the second period according to a range of the first display area.

18. A display device comprising: a display driver configured to drive the display panel to display an image, generate a mode control signal indicating whether the display panel includes at least one of a first display area and a second display area, and generate a coded signal by encoding a horizontal sync signal and the mode control signal; as well as The sensor driver is configured to set a touch sensitivity of a first touch area of ​​the display device corresponding to the first display area and a touch sensitivity of a second touch area of ​​the display device to be different from each other based on the encoded signal.

19. The display device according to claim 18, wherein: The viewing angle of the first display area is smaller than the viewing angle of the second display area.

20. The display device according to claim 18, wherein: The display driver comprises: a signal generator configured to output a pulse signal as the mode control signal during a control period in a frame period when the display panel includes the first display area; and An encoder is configured to generate the encoded signal by encoding the mode control signal and the horizontal synchronization signal.

Images