Object sensing device

Abstract

The object sensing device may include a plurality of first divided blocks divided along a first direction and a sensing driving device driving the plurality of first divided blocks. The sensing driving device may provide a first driving signal to two or more first divided blocks among the plurality of first divided blocks and a second driving signal to the remaining first divided blocks. The first drive signal and the second drive signal may be different.

Description

Technical Field

[0001] Embodiments relate to an object sensing device and a display device. Background Art

[0002] Recently, display devices having an object sensing function that can recognize the touch of an object or the proximity of an object have been widely used. The display devices have various sizes, such as small electronic devices (e.g., smart phones) or large electronic devices (e.g., TVs, kiosks, or electronic whiteboards).

[0003] The display device includes a plurality of sensing units disposed on a panel. The display device displays an image on the panel and performs object sensing using the plurality of sensing units.

[0004] In addition, a coupling capacitor is formed between the sensing unit and the pixel of the panel. When a driving signal is supplied to the sensing unit to implement an object sensing function, a data signal supplied to the pixel of the panel is deformed due to the driving signal. There is a problem of display artifacts occurring due to such deformation of the data signal, which is a phenomenon of image quality degradation. Summary of the invention

[0005] Embodiments are directed to solving the above-referenced and other problems.

[0006] Another object of an embodiment is to provide an object sensing device and a display device that can improve display artifacts.

[0007] Technical problems of the embodiment are not limited to those described in this item, and include technical problems that can be understood through the description of the present invention.

[0008] According to a first aspect of an implementation for achieving the above or other purposes, an object sensing device includes: a plurality of first segmented blocks segmented along a first direction; and a sensing drive device configured to drive the plurality of first segmented blocks, wherein the sensing drive device is configured to: provide a first drive signal to two or more first segmented blocks among the plurality of first segmented blocks and provide a second drive signal to the remaining first segmented blocks, and wherein the first drive signal and the second drive signal are different.

[0009] The first driving signal and the second driving signal may have polarities opposite to each other.

[0010] The first driving signal and the second driving signal may be symmetrical to each other with respect to the reference signal.

[0011] Each of the plurality of first division blocks may include a plurality of second division blocks arranged along the first direction, and each of the plurality of second division blocks may include a plurality of sensing units arranged in a second direction crossing the first direction.

[0012] The sensing driving device may drive each of the plurality of first division blocks using a time division multiplexing method.

[0013] When the time division multiplexing method is used, the sensing driving device may sequentially drive the plurality of first division blocks from the first side to the second side.

[0014] When the time division multiplexing method is used, the sensing driving device may sequentially drive some of the first division blocks from the first side to the second side, and sequentially drive the remaining first division blocks from the second side to the first side.

[0015] The sensing driving device may drive each of the plurality of first division blocks using a code division multiplexing method.

[0016] When the code division multiplexing method is used, for each of the plurality of channels, at least one second division block among the plurality of second division blocks of each of the plurality of first division blocks may provide a first driving signal, and the remaining second division blocks may provide a second driving signal.

[0017] The object sensing device may include a plurality of third division blocks each corresponding to the plurality of first division blocks, and the sensing driving device may drive the plurality of first division blocks through the plurality of third division blocks.

[0018] The plurality of third division blocks may each include a plurality of sensing lines, the plurality of sensing lines may each be connected to the plurality of second division blocks, and the sensing driving device may provide the first driving signal or the second driving signal to the plurality of sensing units in each of the plurality of second division blocks.

[0019] The sensing driving device may include a plurality of sensing driving devices each corresponding to the plurality of first division blocks.

[0020] According to a second aspect of an embodiment for achieving the above or other purposes, a display device includes: a panel, which includes a plurality of first divided blocks divided along a first direction; and a sensing drive device, which is configured to drive the plurality of first divided blocks, wherein the sensing drive device is configured to: provide a first drive signal to two or more first divided blocks among the plurality of first divided blocks and provide a second drive signal to the remaining first divided blocks, and wherein the first drive signal and the second drive signal are different.

[0021] The first driving signal and the second driving signal may have polarities opposite to each other.

[0022] The first driving signal and the second driving signal may be symmetrical to each other with respect to the reference signal.

[0023] Each of the plurality of first division blocks may include a plurality of second division blocks arranged along a first direction, and each of the plurality of second division blocks may include a plurality of sensing units arranged in a second direction crossing the first direction.

[0024] Effects of the object sensing device and the display device according to the embodiments are described as follows.

[0025] According to at least one embodiment, the first drive signal may be provided to two or more first segmented blocks among a plurality of first segmented blocks capable of identifying the touch of an object or the proximity of an object, and the second drive signal may be provided to the remaining first segmented blocks. Therefore, the change of the data signal provided to each pixel of the display panel due to the coupling capacitance between the sensing panel and the display panel is alleviated or minimized, so that display artifacts can be improved.

[0026] According to at least one embodiment, the first drive signal or the second drive signal may be provided to a plurality of second segmentation blocks included in each of the plurality of first segmentation blocks. That is, the same drive signal may be provided to a plurality of second segmentation blocks included in each of the plurality of first segmentation blocks. Therefore, the number of times the first drive signal or the second drive signal is generated may be reduced, thereby drastically reducing power consumption and reducing the computational burden on the sensing drive device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a configuration diagram of a display device according to an embodiment.

[0028] Figure 2 Show Figure 1 Sensing drive device and panel.

[0029] Figure 3 yes Figure 2 Configuration diagram of the sensing drive device.

[0030] Figure 4 The formation of coupling capacitance between the sensing unit and each sub-pixel is shown.

[0031] Figure 5 An object sensing device according to a first embodiment is shown.

[0032] Figure 6 Show Figure 5 A plurality of first partition blocks, a plurality of second partition blocks and a plurality of third partition blocks.

[0033] Figure 7 is a diagram showing example waveforms of the first drive signal and the second drive signal.

[0034] Figure 8 is another example waveform diagram showing the first drive signal and the second drive signal.

[0035] Fig. 9 The driving directions of the plurality of second divided blocks of each of the first-first divided blocks and the first-second divided blocks according to the first embodiment are shown.

[0036] Fig.10 A driving waveform diagram of a plurality of second division blocks of each of the first-first division block and the first-second division block according to the first embodiment is shown.

[0037] Fig.11 The driving directions of the plurality of second divided blocks of each of the first-first divided blocks and the first-second divided blocks according to the second embodiment are shown.

[0038] Fig.12 A driving waveform diagram of a plurality of second division blocks of each of the first-first division block and the first-second division block according to the second embodiment is shown.

[0039] Fig.13 The driving directions of the plurality of second divided blocks of each of the first-first divided blocks and the first-second divided blocks according to the third embodiment are shown.

[0040] Fig.14 A driving waveform diagram of a plurality of second division blocks of each of the first-first division block and the first-second division block according to the third embodiment is shown.

[0041] Fig.15 A first-first segmentation block according to a fourth embodiment is shown.

[0042] Fig.16 is a table showing an example of a code division multiplexing method for driving the second-first to second-fourth division blocks of the first-first division block according to the fourth embodiment.

[0043] Fig.17 An object sensing device according to a second embodiment is shown. DETAILED DESCRIPTION

[0044] Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings, but regardless of the reference numbers, the same or similar elements will be given the same reference numbers, and their redundant descriptions will be omitted. The suffixes "module" and "unit" of the elements used in the following description are given or interchangeably used in consideration of ease of writing the specification, and do not have different meanings or functions from each other. In addition, the accompanying drawings are for ease of understanding the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the accompanying drawings. In addition, when an element such as a layer, a region or a substrate is referred to as being "on" another element, this means that it can be directly on another element or there are other intermediate elements between them.

[0045] Figure 1 is a configuration diagram of a display device according to an embodiment.

[0046] Reference Figure 1, the display device 100 according to the embodiment may include a panel 110 , a data driving device 120 , a gate driving device 130 , and a sensing driving device 140 .

[0047] In an implementation, the panel 110 may include a liquid crystal display panel, an organic light emitting display panel, etc., but is not limited thereto.

[0048] The panel 110 may include a plurality of gate lines GL, a plurality of data lines DL, and a plurality of pixels P. The plurality of gate lines GL may be connected to the gate driving device 130. The plurality of data lines DL may be connected to the data driving device 120. The plurality of pixels P may be connected to the plurality of gate lines GL and the plurality of data lines DL.

[0049] The sensing unit SS may include at least one sensing electrode. The sensing electrode may include a first sensing electrode and a second sensing electrode, but is not limited thereto. A predetermined capacitance may be formed between the first sensing electrode and the second sensing electrode. A driving signal may be provided to the first sensing electrode, and a sensing signal may be output from the second sensing electrode. When an object touches the sensing unit SS or an object approaches the sensing unit SS, the capacitance between the first sensing electrode and the second sensing electrode may change, and the changed capacitance may be output from the second sensing electrode as a sensing signal. The object may include a hand, a finger, a pen, etc. Object sensing may be performed using only one sensing electrode (rather than dividing the sensing electrode into a first sensing electrode and a second sensing electrode).

[0050] The display panel and the sensing panel may share some components with each other. As an example, the display panel and the sensing panel may share an upper substrate.

[0051] As another example, a sensing electrode constituting the sensing unit SS in the sensing panel and a common electrode constituting the pixel P in the display panel may be shared with each other.

[0052] As another example, sensing electrodes constituting the plurality of sensing units SS in the sensing panel and common electrodes constituting the pixels P in the display panel may be independently provided without being shared with each other.

[0053] The gate driving device 130 may sequentially supply scan signals to the plurality of gate lines GL to turn on or off transistors included in the pixels P.

[0054] The gate driving device 130 may be disposed on only one side of the panel 110 as shown in this figure, or may be divided into two and disposed on both sides of the panel 110 according to a driving method.

[0055] The data driving device 120 may convert a data signal provided from an external source (eg, a host) into an analog data voltage and provide the analog data voltage to a plurality of pixels P of the panel 110 to display an image.

[0056] The sensing driver 140 may supply a driving signal to all or part of the plurality of sensing units SS connected to the plurality of sensing lines SL. Although not shown, the sensing line SL may include a first sensing line and a second sensing line. For example, the first sensing line may be connected to a first sensing electrode of the sensing unit SS, and the second sensing line may be connected to a second sensing electrode of the sensing unit SS. The first sensing line may provide a driving signal generated by the sensing driver 140 to the first sensing electrode of the sensing unit SS. The second sensing line may provide a sensing signal output from the second sensing electrode of the sensing unit SS to the sensing driver 140. The first sensing line may be referred to as a transmitting sensing line, and the second sensing line may be referred to as a receiving sensing line. Object sensing may be performed by providing only one sensing line (rather than dividing the sensing line into a first sensing line and a second sensing line).

[0057] As an example, the sensing driver 140 may be configured separately from the data driver 120 and the gate driver 130. For example, the data driver 120, the gate driver 130, and the sensing driver 140 may each be individually configured as an integrated circuit. As another example, depending on the implementation method, the sensing driver 140 may be included in the data driver 120 or the gate driver 130. As another example, the data driver 120, the gate driver 130, and the sensing driver 140 may be configured as one integrated circuit.

[0058] The sensing driving device 140 is not limited in implementation and design methods, and may be a different configuration itself, or may be disposed inside or outside another configuration, as long as the functions performed in the implementation are the same or similar.

[0059] Although one sensing driving device 140 is provided in the drawing, two or more sensing driving devices 140 may be provided.

[0060] In addition, the display device 100 may adopt a capacitive type object sensing method that recognizes a touch or approach of an object by detecting a change in capacitance through the sensing unit SS.

[0061] As an example, the capacitance type object sensing method may be divided into a mutual capacitance type object sensing method and a self capacitance type object sensing method.

[0062] The display device 100 may adopt one of the above two types of capacitive object sensing methods (ie, mutual capacitance object sensing method and self capacitance object sensing method). Hereinafter, for convenience of explanation, the embodiment will be described assuming that the mutual capacitance object sensing method is adopted.

[0063] Figure 2 Show Figure 1 Sensing drive device and panel.

[0064] Reference Figure 2 , the sensing driving device 140 may supply a driving signal STX to the sensing unit SS on the panel 110 .

[0065] The drive signal STX may be a voltage signal or a current signal. The drive signal STX may have a pulse waveform. The pulse waveform may be of various types, such as a standing wave or a square wave. In the following, for convenience of explanation, it will be assumed that a drive signal STX having a square wave is used to describe the embodiment.

[0066] The sensing driving device 140 may receive a sensing signal SRX for driving the signal STX from the sensing unit SS of the panel 110. The sensing driving device 140 may demodulate the received sensing signal SRX, sense the touch or approach of the object 10 to the panel 110, and detect whether the object exists, the coordinates of the object, etc. The sensing signal SRX may be a voltage signal or a current signal. The driving signal STX may have a pulse-shaped waveform. The pulse-shaped waveform may be of various types, such as a standing wave or a square wave.

[0067] Figure 3 yes Figure 2 Configuration diagram of the sensing drive device.

[0068] Reference Figure 2 and Figure 3 , the sensing driving device 140 may include a driving circuit 141 and a sensing circuit 142. The driving circuit 141 and / or the sensing circuit 142 may be configured as an integrated circuit. The driving circuit 141 and the sensing circuit 142 may be integrated into one integrated circuit or into separate integrated circuits.

[0069] The driving circuit 141 may provide a driving signal STX to the sensing units SS on the panel 110. For example, the driving circuit 141 may supply the driving signal STX to one or more sensing units SS connected to each of a plurality of first sensing lines on the panel 110, but is not limited thereto.

[0070] The sensing circuit 142 may receive a sensing signal SRX corresponding to the driving signal STX from one or more sensing units SS connected to each of the plurality of second sensing lines on the panel 110. The sensing circuit 142 may sense or detect a touch or approach of an object to the panel 110 based on the sensing signal SRX.

[0071] The sensing circuit 142 may generate sensing data T_DATA based on the sensing signal SRX.

[0072] The sensing data T_DATA may include a sensing value generated by demodulating the sensing signal SRX. For example, the sensing value may be a time-integrated value of a current or voltage of the sensing signal SRX. The sensing value may be used to determine whether an object 10 exists on the panel 110 or to generate object coordinates. For example, if the magnitude of the sensing value is greater than or less than a reference value, it may be determined that an object touch occurs or an object approaches.

[0073] In addition, the sensing driving device 140 may include a signal generator 143 .

[0074] The signal generator 143 may generate a driving signal STX supplied to the sensing unit SS on the panel 110. The driving circuit 141 may receive the driving signal STX from the signal generator 143 and supply the driving signal STX to the sensing unit SS on the panel 110.

[0075] The signal generator 143 may be disposed inside the sensing driving device 140, but may also be disposed inside the data driving device 120 or the gate driving device 130. According to the implementation method, the signal generator 143 may be implemented by a separate integrated circuit.

[0076] In addition, if Figure 4 As shown, coupling capacitors CC1 to CC3 may be formed between the sensing unit SS and the sub-pixels PX1 to PX3. For example, the sensing unit SS may have a size including at least three sub-pixels PX1 to PX3, but is not limited thereto.

[0077] like Figure 2 and Figure 4 As shown, a driving signal STX may be provided to the sensing unit SS, and a sensing signal SRX may be generated and output from the sensing unit SS. The pixel P may include a plurality of sub-pixels PX1 to PX3 to realize an image. For example, the first sub-pixel PX1 may display red, the second sub-pixel PX2 may display green, and the third sub-pixel PX3 may display blue.

[0078] When the driving signal STX is provided to the sensing unit SS and the sensing signal SRX is generated from the sensing unit SS, the driving signal TX and / or the sensing signal SRX may affect the data signals provided to the respective sub-pixels PX1 to PX3 of the pixel P. That is, the coupling capacitors CC1 to CC3 may each be formed between the sensing unit SS and the respective sub-pixels PX1 to PX3 of the pixel P. The coupling capacitors CC1 to CC3 may differ according to the material characteristics or size of the respective sub-pixels PX1 to PX3.

[0079] When the driving signal STX is provided to the sensing unit SS and the sensing signal SRX is generated from the sensing unit SS, the data signals provided to the respective sub-pixels PX1 to PX3 may change due to the coupling capacitances CC1 to CC3. These changes in data signals may cause display artifacts that degrade image quality.

[0080] In the above, it is assumed that the sensing unit SS is provided on the panel 110 to explain the generation of the display technology, but it is not limited thereto. That is, the embodiments can be applied to any device in which the sensing unit SS is provided on a member other than the panel 110 and a coupling capacitance is formed between the sensing unit SS and the member so that the data signal provided to the member is changed, thereby causing a defect such as a data error.

[0081] Various embodiments are described below that can improve display artifacts, etc. In the following description, the first division block may be referred to as a driving division block, the second division block may be referred to as a sensing block or a sensing unit block, and the third division block may be referred to as a sensing line block.

[0082] Figure 5 An object sensing device according to a first embodiment is shown.

[0083] Reference Figure 1 and Figure 5 , the object sensing device 200 according to the first embodiment may include a plurality of first division blocks 210 to 250 and a sensing driving device 140 .

[0084] As an example, a plurality of first segmentation blocks 210 to 250 may be disposed on the panel 110. The panel 110 may include a display panel and / or a sensing panel. When the sensing panel is integrated with the display panel, that is, in the case of an embedded method, a plurality of first segmentation blocks 210 to 250 may be disposed on the display panel. When the sensing panel is disposed separately from the display panel, that is, when the sensing panel is an external attachment method or an external plug-in method, a plurality of first segmentation blocks 210 to 250 may be disposed on the sensing panel. When a coupling capacitance is formed between the sensing panel and the display panel and a recognition operation is performed with respect to a touch of an object to the plurality of first segmentation blocks 210 to 250 or an approach of an object to the plurality of first segmentation blocks 210 to 250, due to the coupling capacitance, the data signal provided to each pixel P on the display panel may be deformed, which results in display artifacts that degrade image quality.

[0085] As another example, the plurality of first segmentation blocks 210 to 250 may be disposed on a member other than the panel 110. The member may be an electronic device or a circuit board that performs a predetermined operation using a data signal. In this case, the plurality of first segmentation blocks 210 to 250 may be disposed on a sensing panel, and the sensing panel may be mounted on the member. When a coupling capacitance is formed between the member and the sensing panel and an identification operation is performed with respect to an object touch or an object approach to the plurality of first segmentation blocks 210 to 250, the data signal provided for a specific operation on the member may be deformed due to the coupling capacitance, thereby causing an error in the operation.

[0086] The embodiment not only improves display artifacts that occur when the plurality of first partition blocks 210 to 250 are disposed on a display panel, but also prevents operation errors of components that occur when the plurality of first partition blocks 210 to 250 are disposed on components other than the display panel. Various embodiments for solving this problem are described in detail below.

[0087] The plurality of first partition blocks 210 to 250 may be partitioned, for example, along a first direction (i.e., an X-axis direction). Each of the plurality of first partition blocks 210 to 250 may have a rectangular shape, but is not limited thereto. For example, the plurality of first partition blocks 210 to 250 may each have a short axis in the first direction and a long axis in the second direction (i.e., a Y-axis direction).

[0088] Although five first division blocks 210 to 250 are shown in the drawing, fewer or more first division blocks may be provided.

[0089] The sensing driving device 140 may drive the plurality of first division blocks 210 to 250. The sensing driving device 140 may drive the plurality of first division blocks 210 to 250 simultaneously, but is not limited thereto. For example, the sensing driving device 140 may drive the plurality of first division blocks 210 to 250 simultaneously during one frame, but is not limited thereto. For example, the sensing driving device 140 may simultaneously provide the first driving signal ( Figure 7 and Figure 8 For example, the sensing driving device 140 may provide the second driving signal STX2 to each of the plurality of first division blocks 210 to 250 at the same time, but is not limited thereto.

[0090] The sensing driving device 140 may drive each of the plurality of first division blocks 210 to 250 to recognize an object of the plurality of first division blocks 210 to 250 .

[0091] like Figure 7 and Figure 8As shown, in an embodiment, the sensing drive device 140 may provide a first drive signal STX1 to some of the plurality of first partition blocks 210 to 250, and provide a second drive signal STX2 to the remaining first partition blocks. The sensing drive device 140 may receive a first sensing signal corresponding to the first drive signal STX1 from each of the some first partition blocks, and receive a second sensing signal corresponding to the second drive signal STX2 from each of the remaining first partition blocks. The sensing drive device 140 may identify the touch of an object or the proximity of an object based on the first sensing signal received from each of the some first partition blocks and the second sensing signal received from each of the remaining first partition blocks. In addition, whether an object, object coordinates, etc. exist may be detected based on the first sensing signal received from each of the some first partition blocks and the second sensing signal received from each of the remaining first partition blocks.

[0092] As an example, some of the first partition blocks may be positioned alternately with the remaining first partition blocks. For example, some of the first partition blocks provided with the first drive signal STX1 may be the first-first partition block 210, the first-third partition block 530, and the first-fifth partition block 250. For example, the remaining first partition blocks provided with the second drive signal STX2 may be the first-second partition block 220 and the first-fourth partition block 240.

[0093] As another example, some of the first partition blocks may be positioned adjacent to each other, and the remaining first partition blocks may be positioned adjacent to each other. In this case, after some of the first partition blocks are arranged adjacent to each other along the first direction, the remaining first partition blocks may be positioned adjacent to each other along the first direction adjacent to the last first partition block in some of the first partition blocks, or vice versa. For example, some of the first partition blocks provided with the first drive signal STX1 may be the first-first partition block 210, the first-second partition block 220, and the first-third partition block 230. For example, the remaining first partition blocks provided with the second drive signal STX2 may be the first-fourth partition block 240 and the first-fifth partition block 250.

[0094] As another example, some of the first partition blocks and the remaining first partition blocks are alternately positioned, but two or more of the first partition blocks may be positioned adjacent to each other, and two or more of the remaining first partition blocks may be positioned adjacent to each other. For example, some of the first partition blocks provided with the first drive signal STX1 may be the first-first partition block 210, the first-second partition block 220, and the first-fifth partition block 250. For example, the remaining first partition blocks provided with the second drive signal STX2 may be the first-third partition block 230 and the first-fourth partition block 240.

[0095] The positional relationship between some of the first division blocks and the remaining first division blocks may be changed in various ways.

[0096] The first driving signal STX1 provided to each of some of the first division blocks may have the same size, but is not limited thereto. The second driving signal STX2 provided to each of the remaining first division blocks may have the same size, but is not limited thereto.

[0097] In addition, some of the first partition blocks may be less than ¾ of the total number of the plurality of first partition blocks 210 to 250. For example, the maximum number of some of the total 20 first partition blocks may be 15. In this case, among the 20 first partition blocks, 15 first partition blocks may be allocated to some of the first partition blocks, and 5 first partition blocks may be allocated to the remaining first partition blocks. Therefore, the first drive signal STX1 may be provided to the 15 first partition blocks allocated to some of the first partition blocks, and the second drive signal STX2 may be provided to the 5 first partition blocks allocated to the remaining first partition blocks. On the contrary, the first drive signal STX1 may be provided to 10 first partition blocks allocated to some of the first partition blocks among the 20 first partition blocks, and the second drive signal STX2 may be provided to the 10 first partition blocks allocated to the remaining partition blocks.

[0098] like Figure 7 and Figure 8 As shown, the first drive signal STX1 may have a plurality of first pulses, each of which has a first height A1 and a first width w1. The second drive signal STX2 may have a plurality of second pulses, each of which has a second height A2 and a second width w2. The first width w1 and the second width w2 may be the same, but are not limited thereto. The first height A1 and the second height A2 may be the same, but are not limited thereto. The number of first pulses and the number of second pulses may be the same, but are not limited thereto.

[0099] Furthermore, the first driving signal STX1 and the second driving signal STX2 may be different.

[0100] As an example, Figure 7 As shown, the first driving signal STX1 and the second driving signal STX2 may have polarities opposite to each other.

[0101] In the first drive signal STX1, the first high level HL1 may be higher than the first low level LL1. In the second drive signal STX2, the second high level HL2 may be higher than the second low level LL2. The second high level HL2 of the second drive signal STX2 may be the same as the first low level LL1 of the first drive signal STX1 or lower than the first low level LL1 of the first drive signal STX1. For example, the first high level HL1 of the first drive signal STX1 may have a positive (+) polarity relative to the first low level LL1. For example, the second low level LL2 of the second drive signal STX2 may have a negative (-) polarity relative to the second high level HL2. Therefore, the first high level HL1 of the first drive signal STX1 and the second low level LL2 of the second drive signal STX2 may have inverted polarities.

[0102] For example, when the first low level LL1 of the first drive signal STX1 or the second high level HL2 of the second drive signal STX2 is 0, the first high level HL1 of the first drive signal STX1 may be +10 V, and the second low level LL2 of the second drive signal STX2 may be -10 V. For example, when the first low level LL1 of the first drive signal STX1 or the second high level HL2 of the second drive signal STX2 is 5 V, the first high level HL1 of the first drive signal STX1 may be +10 V, and the second low level LL2 of the second drive signal STX2 may be 0 V.

[0103] In addition, an example may be that the first high level HL1 of the first drive signal STX1 may be the first height A1 of the first pulse, and the second low level LL2 of the second drive signal STX2 may be the second height A2 of the second pulse. The first low level LL1, the first high level HL1, the second low level LL2, and the second high level HL2 may be set to various voltages according to product specifications.

[0104] As another example, Figure 8 As shown, the first drive signal STX1 and the second drive signal STX2 may be symmetrical with each other about the reference signal S_base. The high level HL in the first drive signal STX1 may be higher than the reference signal S_base. The low level LL in the second drive signal STX2 may be lower than the reference signal S_base. The reference signal S_base is a signal with a constant level, and may be 1 / 2 of the difference between the high level HL of the first drive signal STX1 and the low level LL of the second drive signal STX2. Therefore, the first high level HL1 of the first drive signal STX1 and the second low level LL2 of the second drive signal STX2 may be symmetrical with each other about the reference signal S_base. For example, the reference signal S_base may be a ground voltage or 0, but is not limited thereto.

[0105] In addition, when the sensing panel including the plurality of first segmentation blocks 210 to 250 is mounted on the display panel, a coupling capacitance may be formed between the sensing panel and the display panel. Due to this coupling capacitance, the first drive signal STX1 or the second drive signal STX2 provided to the plurality of first segmentation blocks 210 to 250 may have a negative impact on the data signal provided to each pixel P of the display panel. For example, display artifacts may occur. Display artifacts are a phenomenon in which the first drive signal STX1 or the second drive signal STX2 deteriorates the image quality by deforming the data signal provided to each pixel P of the display panel.

[0106] However, according to an embodiment, the sensing driving device 140 may provide the first driving signal STX1 to some of the plurality of first division blocks 210 to 250 and provide the second driving signal STX2 to the remaining first division blocks, and display artifacts may be improved. That is, the sensing driving device 140 does not provide the same driving signal to the plurality of first division blocks 210 to 250, but provides different driving signals, thereby improving display artifacts by alleviating or minimizing the deformation of the data signal provided to each pixel P of the display panel.

[0107] In addition, refer to Figure 5 , Figure 7 and Figure 8 , the object sensing device 200 according to the first embodiment may include a plurality of third segmentation blocks 310 to 350. The plurality of third segmentation blocks 310 to 350 may correspond to the plurality of first segmentation blocks 210 to 250, respectively, but are not limited thereto. For example, when the number of the first segmentation blocks 210 to 250 is five, the number of the third segmentation blocks 310 to 350 may also be five.

[0108] The sensing driving device 140 may drive the plurality of first division blocks 210 to 250 through the plurality of third division blocks 310 to 350 .

[0109] The plurality of third division blocks 310 to 350 may each include a plurality of first sensing lines SL11 to SL1n, SL21 to SL2n, SL31 to SL3n, SL41 to SL4n, and SL51 to SL5n.

[0110] For example, the third-first division block 310 may include a plurality of first sensing lines SL11 to SL1n. For example, the sensing driving device 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of first sensing lines SL11 to SL1n of the third-first division block 310.

[0111] For example, the third-second division block 320 may include a plurality of first sensing lines SL21 to S2n. For example, the sensing driving device 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of first sensing lines SL21 to S2n of the third-second division block 320.

[0112] For example, the third-third partitioning block 330 may include a plurality of first sensing lines SL31 to SL3n. For example, the sensing driving device 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of first sensing lines SL31 to SL3n of the third-third partitioning block 330.

[0113] For example, the third-fourth division block 340 may include a plurality of first sensing lines SL41 to SL4n. For example, the sensing driving device 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of first sensing lines SL41 to SL4n of the third-fourth division block 340.

[0114] For example, the third to fifth division blocks 350 may include a plurality of first sensing lines SL51 to SL5n. For example, the sensing driving device 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of first sensing lines SL51 to SL5n of the third to fifth division blocks 350.

[0115] As an example, the sensing driving device 140 may provide the first driving signal STX1 to the plurality of sensing lines SL11 to SL1n, SL31 to SL3n, and SL51 to SL5n of each of the third-first partition block 310, the third-third partition block 330, and the third-fifth partition block 350. The sensing driving device 140 may provide the second driving signal STX2 to the plurality of sensing lines SL21 to S2n and SL41 to SL4n of each of the third-second partition block 320 and the third-fourth partition block 340. Conversely, the first driving signal STX1 and the second driving signal STX2 may be provided. That is, the first driving signal STX1 may be supplied to the plurality of first sensing lines SL21 to S2n and SL41 to SL4n of each of the third-second partition block 320 and the third-fourth partition block 340, and the second driving signal STX2 may be supplied to the plurality of first sensing lines SL11 to SL1n, SL31 to SL3n, and SL51 to SL5n.

[0116] As another example, the sensing driving device 140 may provide the first driving signal STX1 to the plurality of sensing lines SL11 to SL1n, SL21 to S2n, and SL31 to SL3n of the third-first partition block 310, the third-second partition block 320, and the third-third partition block 330. The sensing driving device 140 may provide the second driving signal STX2 to the plurality of first sensing lines SL41 to SL4n and SL51 to SL5n of each of the third-fourth partition block 340 and the third-fifth partition block 350. Conversely, the first driving signal STX1 and the second driving signal STX2 may be provided. That is, the first drive signal STX1 may be supplied to the plurality of first sensing lines SL41 to SL4n and SL51 to SL5n of each of the third-fourth partitioning blocks 340 and the third-fifth partitioning blocks 350, and the second drive signal STX2 may be supplied to the plurality of first sensing lines SL11 to SL1n, SL21 to SL2n and SL31 to SL3n of each of the third-first partitioning blocks 310, the third-second partitioning blocks 320 and the third-third partitioning blocks 330.

[0117] As another example, the sensing driving device 140 may provide a plurality of first sensing lines SL11 to SL1n and SL51 to SL5n for each of the third-first partitioning block 310 and the third-fifth partitioning block 350. The sensing driving device 140 may provide a plurality of first sensing lines SL21 to S2n, SL31 to SL3n, and SL41 to SL4n for each of the third-second partitioning block 320, the third-third partitioning block 330, and the third-fourth partitioning block 340. In contrast, the first driving signal STX1 and the second driving signal STX2 may be provided. That is, the first drive signal STX1 may be supplied to the plurality of first sensing lines SL21 to SL2n, SL31 to SL3n and SL41 to SL4n of each of the third-second partitioning block 320, the third-third partitioning block 330 and the third-fourth partitioning block 340, and the second drive signal STX2 may be supplied to the plurality of first sensing lines SL11 to SL1n and SL51 to SL5n of each of the third-first partitioning block 310 and the third-fifth partitioning block 350.

[0118] In addition, the provision of the first drive signal STX1 and the second drive signal STX2 may be changed for each cycle. Here, the cycle may be one frame or each of a plurality of subframes divided within one frame, but is not limited thereto. For example, during the first cycle, the sensing driver 140 may provide the first drive signal STX1 to each of the plurality of first sensing lines SL11 to SL1n, SL31 to SL3n, and SL51 to SL5n of the third-first partition block 310, the third-third partition block 330, and the third-fifth partition block 350, and provide the second drive signal STX2 to each of the plurality of first sensing lines SL21 to SL2n and SL41 to SL4n of the third-second partition block 320 and the third-fourth partition block 340. Thereafter, during the second cycle, the sensing driving device 140 may provide a plurality of first sensing lines SL21 to S2n and SL41 to SL4n for each of the third-second partitioning block 320 and the third-fourth partitioning block 340, and provide a plurality of sensing lines SL11 to SL1n, SL31 to SL3n, and SL51 to SL5n for each of the third-first partitioning block 310, the third-third partitioning block 330, and the third-fifth partitioning block 350. In this way, the first driving signal STX1 and the second driving signal STX2 may be provided for each cycle.

[0119] In addition, the sensing driving device 140 may provide the same driving signal to the plurality of first sensing lines SL11 to SL1n, SL21 to S2n, SL31 to SL3n, SL41 to SL4n, and SL51 to SL5n of each of the plurality of third partition blocks 310 to 350. For example, the sensing driving device 140 may provide the first driving signal STX1 to each of the plurality of first sensing lines SL11 to SL1n of the third-first partition block 310. For example, the sensing driving device 140 may provide the second driving signal STX2 to each of the plurality of first sensing lines SL11 to SL1n of the third-first partition block 310.

[0120] In addition, the sensing driving device 140 may sequentially provide the first driving signal STX1 or the second driving signal STX2 to the plurality of first sensing lines SL11 to SL1n, SL21 to S2n, SL31 to SL3n, SL41 to SL4n, and SL51 to SL5n of each of the plurality of third partition blocks 310 to 350. For example, in the third-first partition block 310, after the first driving signal STX1 (or the second driving signal STX2) is provided to the first-first sensing line SL11, the first driving signal STX1 (or the second driving signal STX2) may be provided to the first-second sensing line SL12. This method continues, and in the third-first partition block 310, after the first driving signal STX1 (or the second driving signal STX1) is provided to the first-(n-1)th sensing line SL1(n-1), the first driving signal STX1 (or the second driving signal STX2) may be provided to the nth sensing line SL1n.

[0121] Reference Figure 6 , the object sensing device 200 according to an embodiment will be described in more detail.

[0122] Figure 6 Show Figure 5 A plurality of first partition blocks, a plurality of second partition blocks and a plurality of third partition blocks.

[0123] Reference Figure 5 and Figure 6 , the plurality of first partition blocks 210 to 250 may each include a plurality of second partition blocks 210-1 to 210-n, 220-1 to 220-n, 230-1 to 230-n, 240-1 to 240-n, and 250-1 to 250-n arranged along the first direction. The plurality of second partition blocks 210-1 to 210-n, 220-1 to 220-n, 230-1 to 230-n, 240-1 to 240-n, and 250-1 to 250-n may each have a rectangular shape, but is not limited thereto. For example, the plurality of second partition blocks 210-1 to 210-n, 220-1 to 220-n, 230-1 to 230-n, 240-1 to 240-n, and 250-1 to 250-n may each have a short axis in the first direction and a long axis in the second direction.

[0124] For example, the first-first partition block 210 may include a plurality of second-first partition blocks 210-1 to second-nth partition blocks 210-n arranged along the first direction. For example, the first-second partition block 220 may include a plurality of second-first partition blocks 220-1 to second-nth partition blocks 220-n arranged along the first direction. For example, the first-third partition block 230 may include a plurality of second-first partition blocks 230-1 to second-nth partition blocks 230-n arranged along the first direction. For example, the first-fourth partition block 240 may include a plurality of second-first partition blocks 240-1 to second-nth partition blocks 240-n arranged along the first direction. For example, the first-fifth partition block 250 may include a plurality of second-first partition blocks 250-1 to second-nth partition blocks 250-n arranged along the first direction.

[0125] In addition, the plurality of second division blocks 210-1 to 210-n, 220-1 to 220-n, 230-1 to 230-n, 240-1 to 240-n, and 250-1 to 250-n may each include a plurality of sensing cells SS1 to SSm. The plurality of sensing cells SS1 to SSm may be arranged in a second direction crossing the first direction.

[0126] The sensing units SS1 to SSm may be the minimum unit capable of identifying the touch of an object or the proximity of an object. The sensing units SS1 to SSm may include the above-mentioned sensing electrodes. The sensing electrodes may include a first sensing electrode and a second sensing electrode, but are not limited thereto. A predetermined capacitance may be formed between the first sensing electrode and the second sensing electrode. The first driving signal STX1 or the second driving signal STX2 may be provided to the first sensing electrode, and a sensing signal may be output from the second sensing electrode. The sensing signal may reflect a capacitance value changed due to the touch of an object or the proximity of an object.

[0127] In addition, the multiple first sensing lines SL11 to SL1n, SL21 to S2n, SL31 to SL3n, SL41 to SL4n and SL51 to SL5n of each of the multiple third partition blocks 310 to 350 can be respectively connected to the multiple second partition blocks 210-1 to 210-n, 220-1 to 220-n, 230-1 to 230-n, 240-1 to 240-n and 250-1 to 250-n of each of the multiple first partition blocks 210 to 250.

[0128] For example, the first-first sensing lines SL11 to the first-nth sensing lines SL1n of the third-first partition block 310 may be respectively connected to the second-first partition block 210-1 to the second-nth partition block 210-n of the first-first partition block 210. For example, the first-first sensing lines SL11 to the first-nth sensing lines SL1n of the third-first partition block 310 may be commonly connected to the plurality of sensing units SS1 to SSm included in each of the second-first partition block 210-1 to the second-nth partition block 210-n of the first-first partition block 210. The sensing driving device 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of sensing units SS1 to SSm included in each of the second-first partition block 210-1 to the second-nth partition block 210-n of the first-first partition block 210 through each of the first-first sensing lines SL11 to the first-nth sensing lines SL1n of the third-first partition block 310.

[0129] For example, the first-first sensing lines SL21 to the first-nth sensing lines SL2n of the third-second partition block 320 may be respectively connected to the second-first partition block 220-1 to the second-nth partition block 220-n of the first-second partition block 220. For example, the first-first sensing lines SL21 to the first-nth sensing lines SL2n of the third-second partition block 320 may be commonly connected to the plurality of sensing units SS1 to SSm included in each of the second-first partition block 220-1 to the second-nth partition block 220-n of the first-second partition block 220. The sensing driving device 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of sensing units SS1 to SSm included in each of the second-first partition block 220-1 to the second-nth partition block 220-n of the first-second partition block 220 through each of the first-first sensing lines SL21 to the first-nth sensing lines SL2n of the third-second partition block 320.

[0130] For example, the first-first sensing lines SL31 to the first-nth sensing lines SL3n of the third-third partitioning block 330 may be respectively connected to the second-first partitioning block 230-1 to the second-nth partitioning block 230-n of the first-third partitioning block 230. For example, the first-first sensing lines SL31 to the first-nth sensing lines SL3n of the third-third partitioning block 330 may be commonly connected to the plurality of sensing units SS1 to SSm included in each of the second-first partitioning block 230-1 to the second-nth partitioning block 230-n of the first-third partitioning block 230. The sensing driving device 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of sensing units SS1 to SSm included in each of the second-first partitioning block 230-1 to the second-nth partitioning block 230-n of the first-third partitioning block 230 through each of the first-first sensing lines SL31 to the first-nth sensing lines SL3n of the third-third partitioning block 330.

[0131] For example, the first-first sensing lines SL41 to the first-nth sensing lines SL4n of the third-fourth division block 340 may be respectively connected to the second-first division block 240-1 to the second-nth division block 240-n of the first-fourth division block 240. For example, the first-first sensing lines SL41 to the first-nth sensing lines SL4n of the third-fourth division block 340 may be commonly connected to the plurality of sensing units SS1 to SSm included in each of the second-first division block 240-1 to the second-nth division block 240-n of the first-fourth division block 240. The sensing driving device 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of sensing units SS1 to SSm included in each of the second-first division block 240-1 to the second-nth division block 240-n of the first-fourth division block 240 through each of the first-first sensing lines SL41 to the first-nth sensing lines SL4n of the third-fourth division block 340.

[0132] For example, the first-first sensing lines SL51 to the first-nth sensing lines SL5n of the third-fifth division block 350 may be respectively connected to the second-first division block 250-1 to the second-nth division block 250-n of the first-fifth division block 250. For example, the first-first sensing lines SL51 to the first-nth sensing lines SL5n of the third-fifth division block 350 may be commonly connected to the plurality of sensing units SS1 to SSm included in each of the second-first division block 250-1 to the second-nth division block 250-n of the first-fifth division block 250. The sensing driving device 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of sensing units SS1 to SSm included in each of the second-first division block 250-1 to the second-nth division block 250-n of the first-fifth division block 250 through each of the first-first sensing lines SL51 to the first-nth sensing lines SL5n of the third-fifth division block 350.

[0133] In addition, the object sensing device 200 according to the first embodiment may include a plurality of second sensing lines SLR11 to SLR1m, SLR21 to SLR2m, SLR31 to SLR3m, SLR41 to SLR4m, and SLR51 to SLR5m. The plurality of second sensing lines SLR11 to SLR1m, SLR21 to SLR2m, SLR31 to SLR3m, SLR41 to SLR4m, and SLR51 to SLR5m may be commonly connected to the plurality of second partition blocks 210-1 to 210-n, 220-1 to 220-n, 230-1 to 230-n, 240-1 to 240-n, and 250-1 to 250-n of each of the plurality of first partition blocks 210 to 250.

[0134] For example, the plurality of second sensing lines SLR11 to SLR1m may be commonly connected to the plurality of second-first partition blocks 210-1 to the second-nth partition blocks 210-n of the first-first partition block 210. For example, the plurality of second sensing lines SLR21 to SLR2m may be commonly connected to the plurality of second-first partition blocks 220-1 to the second-nth partition blocks 220-n of the first-second partition block 220. For example, the plurality of second sensing lines SLR31 to SLR3m may be commonly connected to the plurality of second-first partition blocks 230-1 to the second-nth partition blocks 230-n of the first-third partition blocks 230. For example, the plurality of second sensing lines SLR41 to SLR4m may be commonly connected to the plurality of second-first partition blocks 240-1 to the second-nth partition blocks 240-n of the first-fourth partition blocks 240. For example, the plurality of second sensing lines SLR51 to SLR5m may be commonly connected to the plurality of second-first to second-nth division blocks 250 - 1 to 250 - n of the first-fifth division blocks 250 .

[0135] For example, each of the plurality of first sensing lines SL11 to SL1n, SL21 to S2n, SL31 to SL3n, SL41 to SL4n and SL51 to SL5n of the third partition blocks 310 to 350 may be connected to the first sensing electrodes of the plurality of sensing units SS1 to SSm, and the plurality of second sensing lines SLR11 to SLR1m, SLR21 to SLR2m, SLR31 to SLR3m, SLR41 to SLR4m and SLR51 to SLR5m may be connected to the second sensing electrodes of the plurality of sensing units SS1 to SSm, but are not limited thereto.

[0136] In addition, the sensing driving device 140 can provide the first driving signal STX1 or the second driving signal STX2 to the plurality of second partition blocks 210-1 to 210-n, 220-1 to 220-n, 230-1 to 230-n, 240-1 to 240-n and 250-1 to 250-n, respectively, and receive sensing signals from the plurality of second partition blocks 210-1 to 210-n, 220-1 to 220-n, 230-1 to 230-n, 240-1 to 240-n and 250-1 to 250-n.

[0137] Specifically, during the first period, the sensing driver 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of sensing units SLR11 to SSm on the second-first partition block 210-1 of the first-first partition block 210 through the first-first sensing line SL11 of the third-first partition block 310, and receive a sensing signal from each of the plurality of sensing units SLR11 to SSm on the second-first partition block 210-1 of the first-first partition block 210 through the plurality of second sensing lines SLR11 to SLR1m. The sensing signals may be received from the plurality of sensing units SS1 to SSm on the second-first partition block 210-1 of the first-first partition block 210 at the same time, but are not limited thereto.

[0138] During the second period, the sensing driver 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of sensing cells SS1 to SSm on the second-second partition block 210-2 of the first-first partition block 210 through the first-second sensing line SL12, and receive a sensing signal from each of the plurality of sensing cells SLR11 to SSm on the second-second partition block 210-2 of the first-first partition block 210 through the plurality of second sensing lines SLR11 to SLR1m. The sensing signals may be received from the plurality of sensing cells SS1 to SSm on the second-second partition block 210-2 of the first-first partition block 210 at the same time, but are not limited thereto.

[0139] Thus, during the (n-1)th time period, the sensing driving device 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of sensing cells SS1 to SSm on the second-(n-1)th partition block 210-(n-1) of the first-first partition block 210 through the first-(n-1)th sensing line SL1(n-1) of the third-first partition block 310, and receive a sensing signal from each of the plurality of sensing cells SS1 to SSm on the second-(n-1)th partition block 210-(n-1) of the first-first partition block 210 through the plurality of second sensing lines SLR11 to SLR1m. A sensing signal may be received from each of the plurality of sensing cells SS1 to SSm on the second-(n-1)th partition block 210-(n-1) of the first-first partition block 210 at the same time.

[0140] During the nth time period, the sensing driver 140 may provide the first driving signal STX1 or the second driving signal STX2 to the plurality of sensing cells SS1 to SSm on the second to nth partition blocks 210-n of the first to first partition blocks 210 through the first to nth sensing lines SL1n of the third to first partition blocks 310, and receive a sensing signal from each of the plurality of sensing cells SS1 to SSm on the second to nth partition blocks 210-n of the first to first partition blocks 210 through the plurality of second sensing lines SLR11 to SLR1m. The sensing signals may be received from the plurality of sensing cells SS1 to SSm on the second to nth partition blocks 210-n of the first to first partition blocks 210 at the same time.

[0141] The first to nth time periods may be included in one frame, but are not limited thereto.

[0142] Therefore, each of the plurality of second-first partition blocks 210-1 to the second-nth partition block 220-n of the first-first partition block 210 may be provided with the first drive signal STX1 or the second drive signal STX2, and the sensing signals may be received from the plurality of sensing units SS1 to SSm of the second-first partition block 210-1 to the second-nth partition block 220-n at the same time. That is, the touch of an object or the approach of an object may be recognized as a unit of the plurality of second-first partition blocks 210-1 to the second-nth partition block 220-n of the first-first partition block 210. In this way, the first-second partition block 220 to the first-fifth partition block 250 may respectively recognize the touch of an object or the approach of an object as a unit of the plurality of second-first partition blocks 210-1 to the second-nth partition block 220-n.

[0143] In addition, during the first time period, the first drive signal STX1 or the second drive signal STX2 may be provided to one of the plurality of second division blocks 210-1 to 210-n, 220-1 to 220-n, 230-1 to 230-n, 240-1 to 240-n, and 250-1 to 250-n from each of the plurality of first division blocks 210 to 250. For example, during the first time period, the first drive signal STX1 may be provided to the second-first division block 210-1 of the first-first division block 210, the second-first division block 230-1 of the first-third division block 230, and the second-first division block 250-1 of the first-fifth division block 250, and the second drive signal STX2 may be provided to the second-first division block 220-1 of the first-second division block 220 and the second-first division block 240-1 of the first-fourth division block 240.

[0144] Similarly, the first driving signal (STX1) or the second driving signal (STX2) may be provided to the plurality of second partition blocks 210-1 to 210-n, 220-1 to 220-n, 230-1 to 230-n, 240-1 to 240-n and 250-1 to 250-n of each of the plurality of first partition blocks 210 to 250 during the second to nth time periods.

[0145] In addition, the sensing driving device 140 may use a time division multiplexing method to drive the plurality of first division blocks 210 to 250 ( Figures 9 to 14 The sensing driving device 140 may use a code division multiplexing method to drive the plurality of first partition blocks 210 to 250 ( Fig.15 and Fig.16 ).

[0146] Below, we will refer to Figures 9 to 16 Driving by the time division multiplexing method and the code division multiplexing method is described in detail. Fig.10 , Fig.12 and Fig.14 The first driving signal STX1 provided on the first to n-th sensing lines SL11 to SL1n of the third-first division block 310 and the second driving signal STX2 provided on the first to n-th sensing lines SL21 to SL2n of the third-second division block 320 are shown.

[0147] although Fig. 9 , Fig.11 , Fig.13 and Fig.15 A method of driving a first driving signal STX1 or a second driving signal STX2 for each of some first division blocks among the plurality of first division blocks 210 to 250 is shown, but Fig. 9 , Fig.11 , Fig.13 and Fig.15 The remaining first segmentation blocks not shown in the figure may also be implemented in a manner similar to or identical to the driving direction of the first driving signal STX1 or the second driving signal STX2.

[0148] Fig. 9 The driving directions of the plurality of second divided blocks of each of the first-first divided blocks and the first-second divided blocks according to the first embodiment are shown. Fig.10 A driving waveform diagram of a plurality of second division blocks of each of the first-first division block and the first-second division block according to the first embodiment is shown.

[0149] like Fig. 9 and Fig.10 As shown, the first-first dividing block 210 and the first-second dividing block 220 may be positioned adjacent to each other.

[0150] For example, the second-first partition block 210-1 to the second-nth partition block 210-n in the first-first partition block 210 may be arranged in order along the first direction. In this case, the first-first sensing line SL11 to the first-nth sensing line SL1n in the third-first partition block 310 may be arranged in order along the first direction. The first-first sensing line SL11 to the first-nth sensing line SL1n may be connected to the second-first partition block 210-1 to the second-nth partition block 210-n, respectively.

[0151] For example, the second-first partition block 210-1 to the second-nth partition block 210-n in the first-second partition block 220 may be arranged in the order of the first direction. In this case, the second-first sensing line SL21 to the second-nth sensing line SL2n in the third-second partition block 320 may be arranged in the order of the first direction. The second-first sensing line SL21 to the second-nth sensing line SL2n may be connected to the second-first partition block 220-1 to the second-nth partition block 220-n, respectively.

[0152] In addition, the second-first segmentation block 210-1 to the second-n segmentation block 210-n of the first-first segmentation block 210 and the second-first segmentation block 220-1 to the second-n segmentation block 220-n of the first-second segmentation block 220 can be driven in sequence along the same direction. That is, the second-first segmentation block 210-1 to the second-n segmentation block 210-n of the first-first segmentation block 210 and the second-first segmentation block 220-1 to the second-n segmentation block 220-n of the first-second segmentation block 220 can be driven in sequence from the left side (first side) to the right side (second side). They can also be driven in opposite directions. For example, the first-first segmentation block 210 and the first-second segmentation block 220 can be driven in the order of the second-first segmentation blocks 210-1 and 220-1 to the second-n segmentation blocks 210-n and 220-n, respectively.

[0153] Specifically, Fig. 9 and Fig.10 As shown, the first drive signal STX1 may be provided to the second-first partition block 210-1 of the first-first partition block 210, and the second drive signal STX2 may be provided to the second-first partition block 220-1 of the first-second partition block 220. At this time, the first drive signal STX1 and the second drive signal STX2 may be provided to the second-first partition block 210-1 of the first-first partition block 210 and the second-first partition block 220-1 of the first-second partition block 210 at the same time, but are not limited thereto. Therefore, a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-first partition block 210-1 of the first-first partition block 210, and a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-first partition block 220-1 of the first-second partition block 220.

[0154] Thereafter, the first drive signal STX1 may be provided to the second-second partition block 210-2 of the first-first partition block 210, and the second drive signal STX2 may be provided to the second-second partition block 210-2 of the first-second partition block 220. At this time, the first drive signal STX1 and the second drive signal STX2 may be provided to the second-second partition block 210-2 of the first-first partition block 210 and the second-second partition block 210-2 of the first-second partition block 220, but are not limited thereto. Therefore, a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-second partition block 210-2 of the first-first partition block 210, and a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-second partition block 210-2 of the first-second partition block 220.

[0155] The operation may be repeated in this way. Finally, the first drive signal STX1 may be provided to the second-nth partition block 210-n of the first-first partition block 210, and the second drive signal STX2 may be provided to the second-nth partition block 220-n of the first-second partition block 220. At this time, the first drive signal STX1 and the second drive signal STX2 may be provided to the second-nth partition block 210-n of the first-first partition block 210 and the second-nth partition block 220-n of the first-second partition block 220, but are not limited thereto. Therefore, a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-nth partition block 210-n of the first-first partition block 210, and a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-nth partition block 220-n of the first-second partition block 220.

[0156] Fig.11 The driving directions of the plurality of second divided blocks of each of the first-first divided blocks and the first-second divided blocks according to the second embodiment are shown. Fig.12 A driving waveform diagram of a plurality of second division blocks of each of the first-first division block and the first-second division block according to the second embodiment is shown.

[0157] like Fig.11 and Fig.12 As shown, the second-first segmentation block 210-1 to the second-nth segmentation block 210-n of the first-first segmentation block 210 and the second-first segmentation block 220-1 to the second-nth segmentation block 220-n of the first-second segmentation block 220 may be driven sequentially along the direction in which they approach each other. That is, the second-first segmentation block 210-1 to the second-nth segmentation block 210-n of the first-first segmentation block 210 may be driven sequentially from the left side (first side) to the right side (second side), and the second-first segmentation block 220-1 to the second-nth segmentation block 220-n of the first-second segmentation block 220 may be driven sequentially from the right side to the left side. For example, the first-first segmentation block 210 may be driven in the order of the second-first segmentation block 210-1 to the second-nth segmentation block 210-n, and the first-second segmentation block 220 may be driven in the order of the second-nth segmentation block 220-n to the second-first segmentation block 220-1.

[0158] Specifically, the first drive signal STX1 may be provided to the second-first partition block 210-1 of the first-first partition block 210, and the second drive signal STX2 may be provided to the second-nth partition block 220-n of the first-second partition block 220. At this time, the first drive signal STX1 and the second drive signal STX2 may be provided to the second-first partition block 210-1 of the first-first partition block 210 and the second-nth partition block 220-n of the first-second partition block 220 at the same time, but are not limited thereto. Therefore, a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-first partition block 210-1 of the first-first partition block 210, and a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-nth partition block 220-n of the first-second partition block 220.

[0159] Thereafter, the first drive signal STX1 may be provided to the second-second partition block 210-2 of the first-first partition block 210, and the second drive signal STX2 may be provided to the second-nth partition block 220-n of the first-second partition block 220. At this time, the first drive signal STX1 and the second drive signal STX2 may be provided to the second-second partition block 210-2 of the first-first partition block 210 and the second-nth partition block 220-n of the first-second partition block 220, but are not limited thereto. Therefore, a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-second partition block 210-2 of the first-first partition block 210, and a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-nth partition block 220-n of the first-second partition block 220.

[0160] The operation may be repeated in this way. Finally, the first drive signal STX1 may be provided to the second-nth partition block 210-n of the first-first partition block 210, and the second drive signal STX2 may be provided to the second-first partition block 220-1 of the first-second partition block 220. At this time, the first drive signal STX1 and the second drive signal STX2 may be provided to the second-nth partition block 210-n of the first-first partition block 210 and the second-first partition block 220-1 of the first-second partition block 220, but are not limited thereto. Therefore, a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-nth partition block 210-n of the first-first partition block 210, and a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-first partition block 220-1 of the first-second partition block 220.

[0161] Fig.13The driving directions of the plurality of second divided blocks of each of the first-first divided blocks and the first-second divided blocks according to the third embodiment are shown. Fig.14 A driving waveform diagram of a plurality of second division blocks of each of the first-first division block and the first-second division block according to the third embodiment is shown.

[0162] like Fig.13 and Fig.14 As shown, the second-first segmentation block 210-1 to the second-nth segmentation block 210-n of the first-first segmentation block 210 and the second-first segmentation block 220-1 to the second-nth segmentation block 220-n of the first-second segmentation block 220 can be driven sequentially in a direction away from each other. That is, the second-first segmentation block 210-1 to the second-nth segmentation block 210-n of the first-first segmentation block 210 can be driven sequentially from the right side (second side) to the left side (first side), and the second-first segmentation block 220-1 to the second-nth segmentation block 220-n of the first-second segmentation block 220 can be driven sequentially from left to right. For example, the first-first segmentation block 210 can be driven in the order of the second-nth segmentation block 210-n to the second-first segmentation block 210-1, and the first-second segmentation block 220 can be driven in the order of the second-first segmentation block 210-1 to the second-nth segmentation block 210-n.

[0163] Specifically, Fig.13 and Fig.14 As shown, the first drive signal STX1 may be provided to the second-nth partition block 210-n of the first-first partition block 210, and the second drive signal STX2 may be provided to the second-first partition block 220-1 of the first-second partition block 220. At this time, the first drive signal STX1 and the second drive signal STX2 may be provided to the second-nth partition block 210-n of the first-first partition block 210 and the second-first partition block 220-1 of the first-second partition block 220, but are not limited thereto. Therefore, a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-nth partition block 210-n of the first-first partition block 210, and a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-first partition block 220-1 of the first-second partition block 220.

[0164] Thereafter, the first drive signal STX1 may be provided to the second-(n-1)th partition block 210-(n-1) of the first-first partition block 210, and the second drive signal STX2 may be provided to the second-second partition block 210-2 of the first-second partition block 220. At this time, the first drive signal STX1 and the second drive signal STX2 may be provided to the second-(n-1)th partition block 210-(n-1) of the first-first partition block 210 and the second-second partition block 210-2 of the first-second partition block 220 at the same time, but are not limited thereto. Therefore, a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-(n-1)th partition block 210-(n-1) of the first-first partition block 210, and a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-second partition block 210-2 of the first-second partition block 220.

[0165] The operation may be repeated in this way. Finally, the first drive signal STX1 may be provided to the second-first partition block 210-1 of the first-first partition block 210, and the second drive signal STX2 may be provided to the second-nth partition block 220-n of the first-second partition block 220. At this time, the first drive signal STX1 and the second drive signal STX2 may be provided to the second-first partition block 210-1 of the first-first partition block 210 and the second-nth partition block 220-n of the first-second partition block 220 at the same time, but are not limited thereto. Therefore, a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-first partition block 210-1 of the first-first partition block 210, and a sensing signal may be received from each of the plurality of sensing units SS1 to SSm included in the second-nth partition block 220-n of the first-second partition block 220.

[0166] Fig.15 A first-first segmentation block according to a fourth embodiment is shown. Fig.16 is a table showing an example of a code division multiplexing method for driving the second-first to second-fourth division blocks of the first-first division block according to the fourth embodiment. Fig.15 It is shown that the first-first division block 210 includes four second division blocks (ie, second-first division block 240-1 to second-fourth division block 240-n) to drive the first-first division block 210 using four channels, but the number of second division blocks included in the first-first division block 210 may vary according to the number of channels.

[0167] like Fig.15 and Fig.16As shown, each of the second-first division block 210 - 1 to the second-fourth division block 210 - 4 using each of the first channel 1 ch, the second channel 2 ch, the third channel 3 ch, and the fourth channel 4 ch may be driven.

[0168] Each channel can be configured according to a 4-bit code value. These code values ​​can be provided by a microcontroller unit (MCU) or a timing controller. Fig.16 The code values ​​shown may be an example and may vary.

[0169] For example, the first channel 1ch may be configured by a code value of "1110", the second channel 2ch may be configured by a code value of "1101", the third channel 3ch may be configured by a code value of "1011", and the fourth channel 4ch may be configured according to a code value of "0111". For example, "1" may mean supplying the first drive signal STX1, and "0" may mean supplying the second drive signal STX2, but is not limited thereto.

[0170] In this case, when the first channel 1ch is operated, the second-first division block 210-1 to the second-fourth division block 210-4 of the first-first division block 210 may be driven according to the code value "1110", respectively. Specifically, the first driving signal STX1 may be provided to the second-first division block 210-1, the second-second division block 210-2, and the second-third division block 210-3 of the first-first division block 210, respectively, and the second driving signal STX2 may be provided to the second-fourth division block 210-4 of the first-first division block 210.

[0171] When the second channel 2ch is operated, the second-first partition block 210-1 to the second-fourth partition block 210-4 of the first-first partition block 210 may be driven according to the code value "1101". Specifically, the first drive signal STX1 may be provided to the second-first partition block 210-1, the second-second partition block 210-2, and the second-fourth partition block 210-4 of the first-first partition block 210, respectively, and the second drive signal STX2 may be provided to the second-third partition block 210-3 of the first-first partition block 210.

[0172] When the third channel 3ch is operated, the second-first partition block 210-1 to the second-fourth partition block 210-4 of the first-first partition block 210 may be driven according to the code value "1011". Specifically, the first drive signal STX1 may be provided to the second-first partition block 210-1, the second-third partition block 210-3, and the second-fourth partition block 210- of the first-first partition block 210, respectively, and the second drive signal STX2 may be provided to the second-second partition block 210-2 of the first-first partition block 210.

[0173] When the fourth channel 4ch is operated, the second-first partition block 210-1 to the second-fourth partition block 210-4 of the first-first partition block 210 may be driven according to the code value "0111". Specifically, the first drive signal STX1 may be provided to the second-second partition block 210-2, the second-third partition block 210-3, and the second-fourth partition block 210-4 of the first-first partition block 210, respectively, and the second drive signal STX2 may be provided to the second-first partition block 210-1 of the first-first partition block 210.

[0174] The first-second to first-fifth segment blocks ( Figure 5 220 to 250) may also be driven in the same or similar manner as the first-first partition block 210 using a code division multiplexing method.

[0175] Fig.17 An object sensing device according to a second embodiment is shown.

[0176] In addition to the plurality of sensing driving devices 140-1 to 140-5, the second embodiment is similar to the first embodiment ( Figure 5 In the second embodiment, components having the same shape, structure and / or function as those in the first embodiment are given the same reference numerals, and detailed description is omitted.

[0177] Reference Fig.17 , the object sensing device 201 according to the second embodiment includes a plurality of first division blocks 210 to 250 and a plurality of sensing driving devices 140 - 1 to 140 - 5 .

[0178] The drawing shows five sensing driving devices 140 - 1 to 140 - 5 , but fewer or more sensing driving devices may be provided.

[0179] The plurality of sensing driving devices 140-1 to 140-5 may correspond to the plurality of first division blocks 210 to 250, respectively. For example, the first sensing driving device 140-1 may be connected to the first-first division block 210. The second sensing driving device 140-2 may be connected to the first-second division block 220. The third sensing driving device 140-3 may be connected to the first-third division block 230. The fourth sensing driving device 140-4 may be connected to the first-fourth division block 240. The fifth sensing driving device 140-5 may be connected to the first-fifth division block 250.

[0180] In addition, the object sensing device 201 according to the second embodiment may include a plurality of third partition blocks 310 to 350. The plurality of third partition blocks 310 to 350 may each include a plurality of first sensing lines SL11 to SL1n, SL21 to S2n, SL31 to SL3n, SL41 to SL4n, and SL51 to SL5n. The first drive signal STX1 or the second drive signal STX2 may be provided through the plurality of first sensing lines SL11 to SL1n, SL21 to S2n, SL31 to SL3n, SL41 to SL4n, and SL51 to SL5n.

[0181] In this case, the third-first segmentation block 310 may be connected between the first-first segmentation block 210 and the first sensing drive device 140-1. The third-second segmentation block 320 may be connected between the first-second segmentation block 220 and the second sensing drive device 140-2. The third-third segmentation block 330 may be connected between the first-third segmentation block 230 and the third sensing drive device 140-3. The third-fourth segmentation block 340 may be connected between the first-fourth segmentation block 240 and the fourth sensing drive device 140-4. The third-fifth segmentation block 350 may be connected between the first-fifth segmentation block 250 and the fifth sensing drive device 140-5.

[0182] The first sensing driver 140-1 may provide the first driving signal STX1 or the second driving signal STX2 to the first-first partition block 210 through the plurality of first sensing lines SL11 to SL1n of the third-first partition block 310. The second sensing driver 140-2 may provide the first driving signal STX1 or the second driving signal STX2 to the first-second partition block 220 through the plurality of first sensing lines SL21 to S2n of the third-second partition block 320. The third sensing driver 140-3 may provide the first driving signal STX1 or the second driving signal STX2 to the first-third partition block 230 through the plurality of first sensing lines SL31 to S3n of the third-third partition block 330. The fourth sensing driver 140-4 may provide the first driving signal STX1 or the second driving signal STX2 to the first-fourth partition block 240 through the plurality of first sensing lines SL41 to S4n of the third-fourth partition block 340. The fifth sensing driving device 140 - 5 may provide the first driving signal STX1 or the second driving signal STX2 to the first to fifth dividing blocks 250 through the plurality of first sensing lines SL51 to S5 n of the third to fifth dividing blocks 350 .

[0183] In addition, if Figure 6 As shown, a plurality of second sensing lines SLR11 to SLR1m, SLR21 to SLR2m, SLR31 to SLR3m, SLR41 to SLR4m, and SLR51 to SLR5m may be provided.

[0184] For example, the first sensing driver 140-1 may receive a sensing signal generated in the first-first partition block 210 by each of the plurality of second sensing lines SLR11 to SLR1m connected to the first-first partition block 210. For example, the second sensing driver 140-2 may receive a sensing signal generated in the first-second partition block 220 by each of the plurality of second sensing lines SLR21 to SLR2m connected to the first-second partition block 220. For example, the third sensing driver 140-3 may receive a sensing signal generated in the first-third partition block 230 by each of the plurality of second sensing lines SLR31 to SLR3m) connected to the first-third partition block 230.

[0185] For example, the fourth sensing driver 140-4 may receive the sensing signal generated in the first to fourth division blocks 240 through each of the plurality of second sensing lines SLR41 to SLR4m connected to the first to fourth division blocks 240. For example, the fifth sensing driver 140-5 may receive the sensing signal generated in the first to fifth division blocks 250 through each of the plurality of second sensing lines SLR51 to SLR5m connected to the first to fifth division blocks 250.

[0186] According to an embodiment, a plurality of sensing driving devices 140-1 to 140-5 may be provided. A plurality of sensing driving devices 140-1 to 140-5 may be provided to correspond to a plurality of first division blocks 210 to 250. Each of the plurality of sensing driving devices 140-1 to 140-5 may provide a first driving signal STX1 or a second driving signal STX2 to a corresponding first division block 210 to 250 and receive a sensing signal from the corresponding first division block 210 to 250.

[0187] Although not shown in the drawings, the number of the sensing driving devices 140-1 to 140-5 may be smaller than the number of the plurality of first division blocks 210 to 250. In this case, one sensing driving device may drive two or more first division blocks.

[0188] The above detailed description should not be interpreted as limiting in all aspects, but should be regarded as illustrative. The scope of the embodiments should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the embodiments are included in the scope of the embodiments.

Claims

1. An object sensing device, the object sensing device comprising: A plurality of first segmentation blocks, wherein the plurality of first segmentation blocks are segmented along a first direction; as well as a sensing driving device, the sensing driving device being configured to drive the plurality of first division blocks, Wherein, the sensing driving device is configured as follows: providing a first driving signal to two or more first division blocks among the plurality of first division blocks, and providing a second driving signal to the remaining first segmentation blocks, and The first driving signal and the second driving signal are different.

2. The object sensing device according to claim 1, wherein: The plurality of first division blocks each include a plurality of second division blocks arranged along the first direction, and The plurality of second division blocks each include a plurality of sensing units arranged in a second direction intersecting the first direction.

3. The object sensing device according to claim 2, wherein: The sensing driving device is configured to drive each of the plurality of first division blocks using a time division multiplexing method.

4. The object sensing device according to claim 2, wherein: When the time division multiplexing method is used, the sensing driving device is configured to drive the plurality of first division blocks sequentially from the first side to the second side.

5. The object sensing device according to claim 2, wherein: When the time division multiplexing method is used, the sensing driving device is configured to sequentially drive some of the plurality of first division blocks from the first side to the second side, and sequentially drive the remaining first division blocks from the second side to the first side.

6. The object sensing device according to claim 2, wherein: The sensing driving device is configured as follows: each of the plurality of first division blocks is driven using a code division multiplexing method, and Wherein, when the code division multiplexing method is used, for each of the multiple channels, at least one second partition block among the multiple second partition blocks of each of the multiple first partition blocks is configured to provide the first drive signal, and the remaining second partition blocks are configured to provide the second drive signal.

7. The object sensing device according to claim 2, further comprising: a plurality of third partition blocks, each of the plurality of third partition blocks corresponds to the plurality of first partition blocks, The sensing driving device is configured to drive the plurality of first division blocks through the plurality of third division blocks.

8. The object sensing device according to claim 7, wherein: Each of the plurality of third division blocks comprises a plurality of sensing lines, The plurality of sensing lines are respectively connected to the plurality of second segmentation blocks, and The sensing driving device is configured to provide the first driving signal or the second driving signal to the plurality of sensing units in each of the plurality of second division blocks.

9. The object sensing device according to claim 1, wherein: The sensing driving device includes a plurality of sensing driving devices each corresponding to the plurality of first division blocks.

10. An object sensing device, the object sensing device comprising: A plurality of first segmentation blocks, wherein the plurality of first segmentation blocks are segmented along a first direction; as well as a plurality of sensing driving devices, the plurality of sensing driving devices corresponding to the plurality of first division blocks, Wherein, two or more sensing driving devices among the plurality of sensing driving devices are configured as follows: providing a first driving signal to two or more first division blocks among the plurality of first division blocks, and providing a second driving signal to the remaining first segmentation blocks, and The first driving signal and the second driving signal are different.

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