KR20140035789A - Display device - Google Patents

Abstract

The display device includes a touch panel incorporated to a display panel. The first and second touch electrodes and the first and second touch coils of the touch panel integrate to either of the first or the second display substrates. The touch panels selectively detects the changes in the capacitance between the first touch electrodes and the second touch electrodes to acquire the coordinate information of the input point, or acquire the coordinate information of the input point using the frequency transmission and reception between the means of input of the first and second touch coils. [Reference numerals] (100) Signal control unit; (200) Gate driving unit; (300) Data driving unit

Description

Display device {DISPLAY DEVICE}

The present invention relates to a display device, and more particularly to a display device capable of sensing a touch event.

The touch panel obtains coordinate information of a point at which a touch event occurs (hereinafter referred to as a touch point) and inputs information. The touch panel replaces input devices such as a keyboard and a mouse.

The display panel displays an image corresponding to the information input from the touch panel. Generally, the touch panel is separately manufactured and coupled to the outside of the display panel. The touch panel is classified into a resistive film type, a capacitive type, an electromagnetic induction type, and the like. The display device includes two or more kinds of touch panels as required.

Accordingly, an object of the present invention is to provide a display device having a touch panel that detects a touch event in two ways.

A display device according to an embodiment of the present invention includes a display panel and a touch panel. The display panel includes a first display substrate and a second display substrate facing the first display substrate, and is divided into a light blocking area and a plurality of pixel areas.

The touch panel includes a first conductive layer and a second conductive layer insulated from the first conductive layer. More specifically, the touch panel includes a plurality of first touch electrodes that receive first scan signals, and a plurality of first electrodes that intersect the plurality of first touch electrodes and output first sensing signals according to a change in capacitance. 2 touch electrodes, a plurality of first touch coils overlapping the light blocking area, and receiving second scan signals, and overlapping the light blocking areas, and intersecting the plurality of first touch coils. And a plurality of second touch coils for outputting second sensing signals according to the resonance frequency of the input means. The first conductive layer includes one of the plurality of second touch electrodes, the plurality of first touch coils, and the plurality of first touch electrodes.

The touch panel includes a plurality of first touch electrodes that receive first scan signals and a plurality of second touch electrodes that cross the plurality of first touch electrodes and output first sensing signals according to a change in capacitance. A plurality of first touch coils overlapping the light blocking area and receiving second scan signals, and overlapping the plurality of first touch coils, overlapping the plurality of first touch coils, A plurality of second touch coils for outputting the second detection signals according to the resonance frequency.

The display substrate providing the input surface of the display device according to the exemplary embodiment of the present invention includes a base substrate, and the first conductive layer and the second conductive layer are disposed on one side of the base substrate.

A display substrate providing the input surface of a display device according to an exemplary embodiment of the present invention includes a base substrate, the first conductive layer is disposed on one side of the base substrate, and the second conductive layer is the base substrate. It is disposed on the other side of the.

As described above, in the first mode, the amount of capacitance change between the first touch electrodes and the second touch electrodes may be detected to obtain coordinate information of the input point. In addition, in the second mode, coordinate information of an input point may be obtained by frequency transmission and reception between the first touch coils, the second touch coils, and an input means. The touch panel may be selected and driven in one of the first mode and the second mode.

 The touch panel may operate in a third mode in which the first touch electrodes and the second touch electrodes are driven and at the same time the first touch coils and the second touch coils are driven. Coordinate information of one input point may be obtained in two ways, or coordinate information of two input points may be obtained in different ways.

The first touch electrodes, the second touch electrodes, the first touch coils, and the second touch coils of the touch panel may be any one of the first display substrate and the second display substrate of the display panel. The slim display device is realized by being integrated into one.

1 is a block diagram of a display device according to an embodiment of the present invention.
FIG. 2 is a partial perspective view of the display panel and the touch panel shown in FIG. 1.
3A and 3B are cross-sectional views taken along line II ′ of FIG. 2.
4A is a plan view of pixels of a display panel according to an exemplary embodiment of the present invention.
4B is a cross-sectional view of the display panel taken along the line II-II 'of FIG. 4A.
5 is a plan view of a touch panel according to an embodiment of the present invention.
6A is a plan view illustrating the first touch electrodes and the first touch coils of FIG. 5.
FIG. 6B is a plan view illustrating the second touch electrodes and the second touch coils of FIG. 5.
FIG. 7A is a plan view illustrating the first touch electrodes and the second touch electrodes of FIG. 5.
FIG. 7B is a plan view illustrating the first touch coils and the second touch coils of FIG. 5.
8A is a block diagram of a touch panel driver according to an exemplary embodiment of the present invention.
8B is a block diagram of a touch sensing unit according to an embodiment of the present invention.
9A is a block diagram of a touch panel driver according to an exemplary embodiment of the present invention.
9B is a block diagram of a touch sensing unit according to an embodiment of the present invention.
FIG. 10 is a plan view according to an exemplary embodiment of the present invention in which a portion of FIG. 5 is enlarged.
11A and 11B are enlarged plan views of the AA region of FIG. 10.
12 is a cross-sectional view taken along line III-III 'of FIG. 10 according to an embodiment of the present invention.
FIG. 13 is a plan view according to an exemplary embodiment of the present invention, in which the BB region of FIG. 10 is enlarged.
14 is a cross-sectional view taken along line IV-IV 'of FIG. 13.
FIG. 15 is a plan view according to an exemplary embodiment of the present invention showing an enlarged CC region of FIG. 10.
FIG. 16 is a cross-sectional view taken along the line VV ′ of FIG. 15.
17 is a cross-sectional view according to an exemplary embodiment of the present invention taken along line III-III ′ of FIG. 10.
FIG. 18 is a plan view according to an embodiment of the present invention showing an enlarged BB region of FIG. 10.
19 is a cross-sectional view taken along line IV-IV 'of FIG. 18.
FIG. 20 is a plan view according to an embodiment of the present invention showing an enlarged CC region of FIG. 10.
FIG. 21 is a cross-sectional view taken along the line VV ′ of FIG. 20.
FIG. 22 is a plan view according to an exemplary embodiment of the present invention in which a portion of FIG. 5 is enlarged.
FIG. 23 is a cross-sectional view according to an embodiment of the present invention taken along line III-III ′ of FIG. 22.
FIG. 24 is a plan view according to an embodiment of the present invention showing an enlarged DD region of FIG. 22.
25A to 25C are enlarged plan views illustrating a touch panel according to an exemplary embodiment of the present invention.
26A is a plan view illustrating first touch electrodes and first touch coils according to an exemplary embodiment of the present invention.
26B is a plan view illustrating second touch electrodes and second touch coils according to an exemplary embodiment of the present invention.
27A is a plan view illustrating first touch electrodes and first touch coils according to an exemplary embodiment of the present invention.
27B is a plan view illustrating second touch electrodes and second touch coils according to an exemplary embodiment of the present invention.
28 is a plan view illustrating a touch panel according to an embodiment of the present invention.
29A and 29B are cross-sectional views of a display device according to an exemplary embodiment of the present invention.
30A and 30B are cross-sectional views of a display device according to an exemplary embodiment of the present invention.
31 is a cross-sectional view of a display device according to an exemplary embodiment of the present invention.
32A to 32E are cross-sectional views of a touch panel according to an embodiment of the present invention.
33 is a cross-sectional view of a display device according to an exemplary embodiment of the present invention.
34 is a cross-sectional view of a display device according to an exemplary embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a display device according to an embodiment of the present invention. FIG. 2 is a partial perspective view of the display panel and the touch panel shown in FIG. 1. 3A and 3B are cross-sectional views taken along line II ′ of FIG. 2.

1, the display device includes a display panel DP, a signal controller 100, a gate driver 200, a data driver 300, and a touch panel TP. The signal controller 100, the gate driver 200 and the data driver 300 control the display panel DP to generate an image. Although not shown, the display apparatus further includes a touch panel driver for driving the touch panel TP and a touch sensing unit for calculating coordinate information of the input point.

The display panel DP is not particularly limited, and for example, a liquid crystal display panel, an organic light emitting display panel, an electrophoretic display panel, and Electrowetting display panels and the like may be employed. However, in the present embodiment, the liquid crystal display panel will be described by way of example. The liquid crystal display further includes a backlight unit (not shown) and a pair of polarizers (not shown) that provide light to the liquid crystal display panel. The liquid crystal display panel may include a vertical alignment (VA) mode, a patterned vertical alignment (PVA) mode, an in-plane switching (IPS) mode or a fringe-field switching (FFS) mode, a plane to line switching (PLS) mode, and the like. It may be any one of the panels, and is not limited to the panel of a particular mode.

The display panel (DP) includes a plurality of gate lines (GL1 ~ GLn) and a plurality of data lines (DL1 ~ DLm), and a plurality of pixels (PX PX ~ _{11 nm).} The plurality of gate lines GL1 to GLn extend in a first direction DR1 and are arranged in a second direction DR2. The plurality of data lines DL1 ˜DLm cross each other insulated from the plurality of gate lines GL1 ˜GLn. The plurality of gate lines GL1 to GLn are connected to the gate driver 200 and the plurality of data lines DL1 to DLm are connected to the data driver 300. [

The plurality of pixels PX ₁₁ to PX _nm may be arranged in a matrix form. The plurality of pixels PX ₁₁ to PX _nm are arranged corresponding to the plurality of pixel regions PXA ₁₁ to PXA _nm . Each of the plurality of pixels PX ₁₁ to PX _nm is connected to a corresponding gate line and a corresponding data line among the plurality of gate lines GL1 to GLn and the plurality of data lines DL1 to DLm. .

The signal controller 100 receives the input image signals RGB and converts the input image signals RGB corresponding to the operation mode of the display panel DP to the image data R'G'B '. Convert to In addition, the signal controller 100 receives various control signals CS, for example, a vertical synchronization signal, a horizontal synchronization signal, a main clock signal, a data enable signal, and the like. Outputs CONT1, CONT2) and mode selection signal MSS.

The mode selection signal MSS determines an operation mode of the touch panel TP. The touch panel TP may have a capacitive mode (hereinafter referred to as a first mode) or an electromagnetic induction mode (hereinafter referred to as a second mode) or hybrid mode (hereinafter referred to as a third mode) in response to the mode selection signal MSS. )

The mode selection signal MSS may be generated based on an image displayed on the display panel DP. The mode selection signal MSS may have different levels according to operation modes. For example, when the keypad panel is displayed on the display panel DP, the mode selection signal MSS is output as a capacitive activation signal, and when the game panel is displayed on the display panel DP, the mode selection signal MS is displayed. MSS) may be output as an electromagnetic induction activation signal. In addition, when displaying a background image on the display panel DP, the mode selection signal MSS may be output as a hybrid activation signal. In addition, the mode selection signal MSS may be input by a user.

The gate driver 200 outputs gate signals to the gate lines GL1 to GLn in response to the first control signal CONT1. The first control signal CONT1 may be a vertical start signal for starting the operation of the gate driver 200, a gate clock signal for determining an output timing of a gate voltage, and an output enable signal for determining an on pulse width of the gate voltage. And the like.

The data driver 300 receives the second control signal CONT2 and the image data R'G'B '. The data driver 300 converts the image data R'G'B 'into data voltages and provides the data voltages to the plurality of data lines DL1 to DLm.

The second control signal CONT2 is a horizontal start signal for starting the operation of the data driver 300, an inverted signal for inverting the polarities of the data voltages, and a timing when the data voltages are output from the data driver 300. And an output instruction signal to determine.

As shown in FIG. 2, the display panel DP includes a first display substrate DS1 and a second display substrate DS2 which are spaced apart from each other. A liquid crystal layer (LCL) is disposed between the first display substrate (DS1) and the second display substrate (DS2). The plurality of gate lines (GL1 ~ GLn: see Fig. 1), the plurality of data lines (DL1 ~ DLm: see Fig. 1), and the plurality of pixels (PX ₁₁ ~ PX _nm: see FIG. 1) is And is disposed on any one of the first display substrate DS1 and the second display substrate DS2. Hereinafter, the plurality of gate lines (GL1 ~ GLn: see Fig. 1), the plurality of data lines (DL1 ~ DLm: see Fig. 1), and the plurality of pixels (PX ₁₁ ~ PX _nm: see FIG. 1 Are provided on the first display substrate DS1.

The pixel regions PXA shown in FIG. 2 correspond to some of the plurality of pixel regions PXA ₁₁ through PXA _nm shown in FIG. The corresponding pixels PX of the plurality of pixels PX ₁₁ to PX _nm shown in FIG. 1 are arranged in the pixel regions PXA.

The display panel DP is divided into a light blocking area LSA and a plurality of pixel areas PXA. The pixel regions PXA pass light generated from the backlight unit. The light shielding region LSA surrounds the pixel regions PXA. The light shielding area LSA blocks the light.

The touch panel TP is disposed on the display panel DP. The touch panel TP may be adhered to an upper surface of the second display substrate DS2. The touch panel TP includes a first touch substrate TSS1, a first conductive layer CL1, an insulating layer IL, a second conductive layer CL2, and a second touch substrate TSS2.

The first touch substrate TSS1 and the second touch substrate TSS2 may be formed of a plastic substrate, a glass substrate, or a film. The first touch substrate TSS1 and the second touch substrate TSS2 may be optical films such as a polarizing plate.

Although not shown in detail, each of the first conductive layer CL1 and the second conductive layer CL2 includes a plurality of conductive patterns. The plurality of conductive patterns of the first conductive layer CL1 may include some of the first touch electrodes, the second touch electrodes, the first touch coils, and the second touch coils, as described below. The plurality of conductive patterns of the second conductive layer CL2 include the first touch electrodes, the second touch electrodes, the first touch coils, and other portions of the second touch coils.

The insulating layer IL insulates the first conductive layer CL1 and the second conductive layer CL2. The insulating layer IL may have a multi-layer structure. For example, the insulating layer IL may include at least one organic film and / or at least one inorganic film. The insulating layer IL may include a laminated organic film and an inorganic film.

As shown in FIG. 3A, the first display substrate DS1 of the display panel DP is disposed under the liquid crystal layer LCL, and the second display substrate DS2 is disposed on the display panel DP. It is disposed above the liquid crystal layer LCL. The touch panel TP is disposed on the second display substrate DS2.

The first display substrate DS1 includes a first base substrate SUB1, a plurality of insulating layers 10 and 20, and pixels PX. The pixels PX are respectively arranged in the pixel regions PXA. Each of the pixels PX includes a pixel electrode PE and a common electrode CE. In addition, each of the pixels PX may further include a thin film transistor not shown. The pixel electrode PE and the common electrode CE of each of the pixels PX according to the present exemplary embodiment are disposed on different layers.

The second display substrate DS2 includes a second base substrate SUB2, a light-shielding layer BM, and color filters CF. The light-shielding layer BM includes openings BM-OP. The color filters CF are arranged to overlap the openings BM-OP. Substantially the pixel areas PXA correspond to the openings BM-OP and the light shielding area LSA corresponds to a region where the light shielding layer BM is disposed.

The color filters CF may include color filters having different colors. For example, some of the color filters CF may be red, others may be green, and others may be blue.

As shown in FIG. 3B, the first display substrate DS1 of the display panel DP10 is disposed above the liquid crystal layer LCL, and the second display substrate DS2 is disposed on the liquid crystal layer LCL. It may be disposed under the liquid crystal layer (LCL). The touch panel TP is disposed on the first display substrate DS1. Each of the first display substrate DS1, the second display substrate DS2, and the touch panel TP has the same configuration as that shown in FIG. 3A.

4A is a plan view of pixels of a display panel according to an exemplary embodiment of the present invention. 4B is a cross-sectional view of the display panel taken along the line II-II 'of FIG. 4A. 4A and 4B are shown based on the display panel shown in FIG. 3A, and the touch panel is not shown. Hereinafter, the display panel will be described in detail with reference to FIGS. 4A and 4B. FIG. Meanwhile, the display panel illustrated in FIG. 3B may also include pixels having the same shape as the pixel illustrated in FIG. 4A.

The pixel PX includes a thin film transistor TFT, a common electrode CE and a pixel electrode PE. The thin film transistor TFT, the common electrode CE, and the pixel electrode PE are arranged to overlap the pixel region PXA. The thin film transistor TFT of a pixel according to another exemplary embodiment may be disposed to overlap the light blocking area LSA.

A gate line GLi and a common line CLi are disposed on the first base substrate SUB1. And the gate electrode GE of the thin film transistor TFT is branched from the gate line GLi. A gate insulating film 10-1 covering the gate line GLi and the common line CLi is disposed on the first base substrate SUB1.

Data lines DLj and DLj + 1 are disposed on the gate insulating film 10-1. A semiconductor layer (AL) overlapping the gate electrode (GE) is disposed on the gate insulating film (10-1). The source electrode SE of the thin film transistor TFT is branched from one data line DLj of the data lines DLj and DLj + 1. The source electrode SE and the drain electrode DE disposed apart from the source electrode SE are disposed on the gate insulating film 10-1. The source electrode SE and the drain electrode DE overlap with the semiconductor layer AL, respectively.

A planarizing film 10-2 covering the source electrode SE, the drain electrode DE and the data lines DLj and DLj + 1 is disposed on the gate insulating film 10-1. A common electrode CE is disposed on the planarizing film 10-2. The common electrode CE is connected to the common line CLi through a first through hole CH1 passing through the gate insulating film 10-1 and the planarization film 10-2.

A passivation film 20 covering the common electrode CE is disposed on the planarization film 10-2. The pixel electrode PE overlapping the common electrode CE is disposed on the passivation film 20. [ The pixel electrode PE is connected to the drain electrode DE through the planarization layer 10-2 and the second through hole CH2 passing through the passivation layer 20. A passivation layer (not shown) and an alignment layer (not shown) may be further formed on the passivation layer 20 to protect the pixel electrodes PE.

The pixel electrode PE includes a plurality of slits SLT. The pixel electrode PE includes a first horizontal portion P1, a second horizontal portion P2 spaced apart from the first horizontal portion P1, and the first horizontal portion P1 and the second horizontal portion. It may include a plurality of vertical portions (P3) connecting the portion (P2). The plurality of slits SLT are disposed between the plurality of vertical parts P3. The shape of the pixel electrode PE is not limited thereto.

The thin film transistor TFT outputs a data voltage applied to the data line DLj in response to a gate signal applied to the gate line GLi. The common electrode CE receives a reference voltage, and the pixel electrode PE receives a pixel voltage corresponding to the data voltage. The common electrode CE and the pixel electrode PE form a transverse electric field. The arrangement of directors included in the liquid crystal layer LCL is changed by the transverse electric field.

Meanwhile, in another embodiment, the common electrode CE and the pixel electrode PE may be disposed on the same layer. In another embodiment, the common electrode CE may be disposed on the second display substrate DS2.

5 is a plan view of a touch panel according to an embodiment of the present invention. 6A is a plan view illustrating the first touch electrodes and the first touch coils of FIG. 5. FIG. 6B is a plan view illustrating the second touch electrodes and the second touch coils of FIG. 5. Hereinafter, the touch panel will be described in detail with reference to FIGS. 5 to 6B.

As illustrated in FIG. 5, the touch panel TP includes first touch electrodes TE1 (1) to TE1 (k), second touch electrodes TE2 (1) to TE2 (r), and a second touch electrode. One touch coils TC1 (1) to TC1 (p) and second touch coils TC2 (1) to TC2 (q) are included. The first touch electrodes TE1 (1) to TE1 (k) and the second touch electrodes TE2 (1) to TE2 (r) cross each other in an insulated manner, and the first touch coils TC1 ( 1) to TC1 (p) and the second touch coils TC2 (1) to TC2 (q) cross each other insulated.

As shown in FIG. 6A, the first touch electrodes TE1 (1) to TE1 (k) are spaced apart from each other in the first direction DR1. Each of the first touch electrodes TE1 (1) to TE1 (k) extends in the second direction DR2. Each of the first touch electrodes TE1 (1) to TE1 (k) includes a plurality of sensor units SP1 (hereinafter, referred to as first sensor units) and a plurality of connection units CP1 (hereinafter referred to as first connection units).

Some of the first sensor units SP1 and some of the first connection units CP1 form a first touch unit TU1. The first touch unit TU1 connects the first sensor parts SP1 arranged in the second direction DR2 and the first connection parts CP1 connecting two adjacent sensor parts among the first sensor parts SP1. ). Each of the first touch electrodes TE1 (1) to TE1 (k) includes two first touch units TU1. Each of the first touch electrodes TE1 (1) through TE1 (k) includes one first touch unit TU1 or three or more first touch units TU1 It is possible.

Each of the first sensor units SP1 has a rhombic shape, and the first connection units CP1 are linear. Each of the first connection parts CP1 connects vertices of two adjacent sensor parts. The first sensor portions SP1 having a rhombus shape have a larger area than the linear first connection portions CP1.

Each of the first touch electrodes TE1 (1) to TE1 (k) includes two first touch units TU1. Each of the first touch electrodes TE1 (1) through TE1 (k) includes one first touch unit TU1 or three or more first touch units TU1 It is possible.

As shown in FIG. 6A, each of the first touch coils TC1 (1) to TC1 (p) has a loop shape extending in the second direction DR2. The first touch coils TC1 (1) to TC1 (p) are arranged in the first direction DR1.

The first touch coils TC1 (1) to TC1 (p) may be superimposed in various shapes, for example, one at a time or one at a time. As shown in FIG. 6A, the first touch coils TC1 (1) to TC1 (p) may be partially overlapped in units of three touch coils. One end of each of the first touch coils TC1 (1) to TC1 (p) is grounded.

The first touch electrodes TE1 (1) to TE1 (k) are disposed in divided regions formed by overlapping the first touch coils TC1 (1) to TC1 (p). In other words, the first touch electrodes TE1 (1) to TE1 (k) do not overlap the first touch coils TC1 (1) to TC1 (p), and the first touch units ( TU1 is surrounded by the first touch coils TC1 (1) to TC1 (p).

The first touch electrodes TE1 (1) to TE1 (k) and the first touch coils TC1 (1) to TC1 (p) are the first conductive layer CL1 shown in FIG. 2 or It may be included in the second conductive layer CL2. In addition, the first touch electrodes TE1 (1) to TE1 (k) are included in any one of the first conductive layer CL1 and the second conductive layer CL2, and the first touch coils. TC1 (1) to TC1 (p) may be included in another one of the first conductive layer CL1 and the second conductive layer CL2.

As shown in FIG. 6B, the second touch electrodes TE2 (1) to TE2 (r) are spaced apart from each other in the second direction DR2. Each of the second touch electrodes TE2 (1) to TE2 (r) extends in the first direction DR1. Each of the second touch electrodes TE2 (1) to TE2 (r) includes a plurality of sensor units SP2 (hereinafter referred to as second sensor units) and a plurality of connection units CP2 (hereinafter referred to as second connection units).

Some of the second sensor units SP2 and some of the second connection units CP2 form a second touch unit TU2. The second touch unit TU2 connects second sensor parts SP2 arranged in the first direction DR1 and second connection parts CP2 that connect two adjacent sensor parts among the second sensor parts SP2. ).

Each of the second touch coils TC2 (1) to TC2 (q) has a loop shape extending in the first direction DR1. The second touch coils TC2 (1) to TC2 (q) are arranged in the second direction DR2. The second touch coils TC2 (1) to TC2 (q) may overlap in various forms like the first touch coils TC1 (1) to TC1 (p) of FIG. 6A. As illustrated in FIG. 6B, the second touch coils TC2 (1) to TC2 (q) may be partially overlapped in units of three touch coils. One end of each of the second touch coils TC2 (1) to TC2 (q) is grounded.

The second touch electrodes TE2 (1) to TE2 (r) are disposed in divided regions formed by overlapping the second touch coils TC2 (1) to TC2 (q). In other words, the second touch electrodes TE2 (1) to TE2 (r) do not overlap the second touch coils TC2 (1) to TC2 (q), and the second touch units ( TU2 is surrounded by the second touch coils TC2 (1) to TC2 (q).

The second touch electrodes TE2 (1) to TE2 (r) and the second touch coils TC2 (1) to TC2 (q) are the first conductive layer CL1 shown in FIG. On the other of the second conductive layers CL2, the first touch electrodes TE1 (1) to TE1 (k) and the first touch coils TC1 (1) to TC1 (p) are not included. May be included. In addition, the second touch electrodes TE2 (1) to TE2 (r) are included in any one of the first conductive layer CL1 and the second conductive layer CL2, and the second touch coils. TC2 (1) to TC2 (q) may be included in the other of the first conductive layer CL1 and the second conductive layer CL2.

FIG. 7A is a plan view illustrating the first touch electrodes and the second touch electrodes of FIG. 5. FIG. 7B is a plan view illustrating the first touch coils and the second touch coils of FIG. 5. Hereinafter, an operation method of the touch panel will be described with reference to FIGS. 7A and 7B.

As shown in FIG. 7A, the first touch electrodes TE1 (1) to TE1 (k) and the second touch electrodes TE2 (1) to TE2 (r) cross each other. The first touch electrodes TE1 (1) to TE1 (k) correspond to input touch electrodes, and the second touch electrodes TE2 (1) to TE2 (r) correspond to output touch electrodes. do. The first touch electrodes TE1 (1) to TE1 (k) and the second touch electrodes TE2 (1) to TE2 (r) are coordinates of input points in the same manner as capacitive touch panels. Calculate the information.

The first touch electrodes TE1 (1) to TE1 (k) and the second touch electrodes TE2 (1) to TE2 (r) are electrostatically coupled. As the first scan signals TS1 (1) to TS1 (k), hereinafter referred to as first scan signals, are applied to the first touch electrodes TE1 (1) to TE1 (k), the first sensor units. Capacitors are formed between SP1 and the second sensor parts SP2.

The first touch electrodes TE1 (1) to TE1 (k) may sequentially receive the first scan signals TS1 (1) to TS1 (k). The first scan signals TS1 (1) to TS1 (k) are activated in different sections. The second touch electrodes TE2 (1) to TE2 (r) may include sensing signals SS1 (1) to SS1 (r generated from the first scan signals TS1 (1) to TS1 (k). ), Hereinafter, first sensing signals).

A second touch electrode TE1 (2) of the first touch electrodes TE1 (1) to TE1 (k) and a second touch of the second touch electrodes TE2 (1) to TE2 (r) The region where the electrodes TE2 (2) intersect is assumed to be the input point PP1 (hereinafter referred to as a first input point). Here, the first input point PP1 is generated by input means such as a user's finger.

 The first detection signal SS1 (2) output from the second touch electrode TE2 (2) of the second touch electrodes TE2 (1) to TE2 (r) is the second touch electrodes ( The first sensing signals SS1 (1) and SS1 (3) to SS1 (r) output from TE2 (1) and TE2 (3) to TE2 (r) have different levels.

Coordinate information of the first direction DR1 of the first input point PP1 is calculated according to a time when the first detection signal SS1 (2) having different levels is detected, and the second touch electrode TE2 is calculated. Coordinate information of the second direction DR2 of the first input point PP1 is based on the relative position of the second touch electrodes TE2 (1) to TE2 (r) of (2). Can be calculated.

As shown in FIG. 7B, the first touch coils TC1 (1) to TC1 (p) and the second touch coils TC2 (1) to TC2 (q) are disposed to cross each other. The first touch coils TC1 (1) to TC1 (p) correspond to input coils of an electromagnetic induction touch panel, and the second touch coils TC2 (1) to TC2 (q) Corresponding to the output coils. The first touch coils TC1 (1) to TC1 (p) and the second touch coils TC2 (1) to TC2 (q) may be formed in the same manner as the touch panel of the electromagnetic induction method. Calculate the coordinate information.

The first touch coils TC1 (1) to TC1 (p) receive scan signals TS2 (1) to TS2 (p), hereinafter referred to as second scan signals, which are activated in different sections. Each of the first touch coils TC1 (1) to TC1 (p) generates a magnetic field in response to a corresponding scan signal.

When the input means (not shown) is adjacent to the first touch coils TC1 (1) to TC1 (p), a magnetic field induced from the first touch coils TC1 (1) Resonates with the resonance circuit of the input means. The input means generates a resonant frequency. Here, the input means may be a stylus pen having an LC resonance circuit including an inductor and a capacitor. The second touch coils TC2 (1) to TC2 (q) output detection signals (SS2 (1) to SS2 (q), hereinafter second sensing signals) according to the resonance frequency of the input means. do.

The second touch coil TC1 (2) of the first touch coils TC1 (1) to TC1 (p) and the second touch of the second touch coils TC2 (1) to TC2 (q). It is assumed that the center region where the coil TC2 (2) intersects is the input point PP2 (hereinafter referred to as the second input point). The second detection signal SS2 (2) output from the second touch coil TC2 (2) is output from the remaining second touch coils TC2 (1), TC2 (3) to TC2 (q). The second sensing signals SS2 (1) and SS2 (3) to SS2 (q) have different levels.

For the time when the second detection signal SS2 (2) having different levels is detected and the second touch coils TC2 (1) to TC2 (q) of the second touch coil TC2 (2). Based on the relative position, two-dimensional coordinate information of the second input point PP2 is calculated.

Meanwhile, in another embodiment of the present invention, the first touch coils TC1 (1) to TC1 (p) and the second touch coils TC2 (1) to TC2 (q) are input coils and outputs. It can have all the functions of a coil. Hereinafter, assuming that the touch event occurs at the second input point PP2, first touch coils TC1 (1) to TC1 (p) and a second touch having both input coil and output coil functions. The operation of the touch panel including the coils TC2 (1) to TC2 (q) will be briefly described.

The first touch coils TC1 (1) to TC1 (p) receive scan signals during a first scan period. The input means generates a resonant frequency according to the magnetic field derived from the first touch coils TC1 (1) to TC1 (p). After the first scan section (hereinafter, the first sensing section), the first touch coils TC1 (1) to TC1 (p) receive the resonance frequency of the input means.

The first touch coils TC1 (1) to TC1 (p) output detection signals corresponding to the resonance frequency during the first sensing period. The at least one first touch coil disposed on the second input point PP2 outputs a sensing signal having a different level than the other first touch coils.

After the first sensing period, the second touch coils TC2 (1) to TC2 (q) receive further scan signals during the second scan period. The input means generates a resonant frequency according to the magnetic field derived from the second touch coils TC2 (1) to TC2 (q). After the second scan section (hereinafter, the second sensing section), the second touch coils TC2 (1) to TC2 (q) receive the resonance frequency of the input means.

The second touch coils TC2 (1) to TC2 (q) output sensing signals according to the resonance frequency during the second sensing period. The at least one second touch coil disposed on the second input point PP2 outputs a sensing signal having a different level than the other second touch coils.

A sensed signal output from the at least one first touch coil disposed on the second input point PP2 and a sensed output from the at least one second touch coil disposed on the second input point PP2. The coordinate information of the second input point PP2 is calculated based on the signal.

8A is a block diagram of a touch panel driver according to an exemplary embodiment of the present invention. 8B is a block diagram of a touch sensing unit according to an embodiment of the present invention. Hereinafter, the touch panel driver and the touch sensing unit will be described in detail with reference to FIGS. 8A and 8B.

The touch panel driver 400 includes a first scan signal output unit 410, a second scan signal output unit 420, and switch units 430-1 and 430-2. The first scan signal output unit 410 outputs first scan signals TS1 (1) to TS1 (k), and the second scan signal output unit 420 outputs the second scan signals TS2. (1) to TS2 (p)) are output.

The first scan signal output unit 410 and the second scan signal output unit 420 are turned on or off in response to the mode selection signal MSS. The first scan signal output unit 410 is turned on in the first mode and sequentially outputs the first scan signals TS1 (1) to TS1 (k). The second scan signal output unit 420 is turned on in the second mode and sequentially outputs the second scan signals TS2 (1) to TS2 (p).

The switch units 430-1 and 430-2 include first switch units 430-1 and second switch units 430-2. Each of the first switch units 430-1 may include a corresponding first scan signal and second scan signals TS2 (1) to TS2 among the first scan signals TS1 (1) to TS1 (k). In step (p), a corresponding second scan signal is received. Each of the first switch units 430-1 may provide the corresponding first scan signal to a corresponding first touch electrode or correspond to the corresponding first touch coil in response to the mode selection signal MSS. Provide a second scan signal. The first switch units 430-1 may be CMOS transistors.

Each of the second switch units 430-2 receives a corresponding second scan signal among the second scan signals TS2 (1) to TS2 (p). Each of the second switch units 430-2 is turned off in the first mode and turned on in the second mode. The second switch units 430-2 may be NMOS transistors or PMOS transistors. Meanwhile, in the case of a touch panel having the same number of the first touch electrodes TE1 (1) to TE1 (k) and the first touch coils TC1 (1) to TC1 (p), The second switch parts 430-2 are not provided.

As shown in FIG. 8B, the touch detector 500 includes switch units 510-1 and 510-2, a selector 520, a first signal processor 530, a second signal processor 540, and The coordinate calculator 550 is included.

The switch units 510-1 and 510-2 include third switch units 510-1 and fourth switch units 510-2. Each of the third switch units 510-1 may include a corresponding first detection signal and second detection signals SS2 (1) to SS2 among the first detection signals SS1 (1) to SS1 (r). A corresponding second sensing signal of (q)) is received. Each of the third switch units 510-1 provides the corresponding first sensing signal to the selection unit 520 in the first mode in response to the mode selection signal MSS, and the second mode. Provides the corresponding second detection signal to the selector 520. The third switch units 510-1 may be CMOS transistors.

Each of the fourth switch units 510-2 receives a second sensing signal corresponding to the second sensing signals SS2 (1) to SS2 (q). Each of the fourth switch units 510-2 is turned on in response to the mode selection signal MSS. The fourth switch units 510-2 may be NMOS transistors or PMOS transistors. Meanwhile, the fourth switch includes the same number of the second touch electrodes TE2 (1) to TE2 (r) and the second touch coils TC2 (1) to TC2 (q). It does not have the parts 510-2.

The selector 520 provides the first detection signals SS1 (1) to SS1 (r) to the first signal processor 530 in response to the mode selection signal MSS. The detection signals SS2 (1) to SS2 (q) are provided to the second signal processor 540. The selector 520 may be a multiplexer.

The first signal processor 530 includes an amplifier, a noise filter, and an analog-digital converter. The amplifier amplifies corresponding first sensing signals SS1 (1) to SS1 (r). The noise filter removes noise of the amplified first detection signals SS1 (1) to SS1 (r). The analog-to-digital converter converts the first sensing signals SS1 (1) to SS1 (r) from which the noise is removed to first digital signals. The coordinate calculator 550 calculates coordinate information of the first input point PP1 (see FIG. 7A) from the first digital signals.

Each of the second signal processors 540 includes a cascaded amplifier, a band pass filter, a detector, a sample hold circuit, an analog-to-digital converter, and the like. The second sensing signals SS2 (1) to SS2 (q) are finally converted into second digital signals. The coordinate calculator 550 calculates coordinate information of the second input point PP2 (see FIG. 7B) from the second digital signals.

9A is a block diagram of a touch panel driver according to an exemplary embodiment of the present invention. 9B is a block diagram of a touch sensing unit according to an embodiment of the present invention. Hereinafter, the touch panel driver and the touch sensing unit will be described in detail with reference to FIGS. 9A and 9B. However, detailed description of the same configuration as that described with reference to FIGS. 8A and 8B will be omitted.

As shown in FIG. 9A, the touch panel driver 400-1 includes a first scan signal output unit 410-1 and a second scan signal output unit 420-1. The first scan signal output unit 410-1 outputs first scan signals TS1 (1) to TS1 (k), and the second scan signal output unit 420-1 outputs the second scan. Signals TS2 (1) to TS2 (p) are output.

The first scan signal output unit 410-1 and the second scan signal output unit 420-1 are turned on or turned off in response to the mode selection signal MSS. In the first mode, the first scan signal output unit 410-1 may be turned on and the second scan signal output unit 420-1 may be turned off. In the second mode, the first scan signal output unit 410-1 may be turned off and the second scan signal output unit 420-1 may be turned on. In the third mode, the first scan signal output unit 410-1 and the second scan signal output unit 420-1 may be turned on, respectively.

The first scan signal output unit 410-1 which is turned on has the first scan signals TS1 (1) to TS1 (k) to the first touch electrodes TE1 (1) to TE1 (k). ) Are printed sequentially. The turned-on second scan signal output unit 420-1 may transmit the second scan signals TS2 (1) to TS2 (p) to the first touch coils TC1 (1) to TC1 (p). )) In order. Therefore, in the third mode, the first touch electrodes TE1 (1) to TE1 (k) and the first touch coils TC1 (1) to TC1 (p) respectively receive corresponding signals.

As shown in FIG. 9B, the touch detector 500-1 may include a first selector 520-1, a second selector 520-2, a first signal processor 530, and a second signal processor. 540 and a coordinate calculator 550.

The first selector 520-1 provides the first detection signals SS1 (1) to SS1 (r) to the first signal processor 530, and the second selector 520-2. Provides the second detection signals SS2-1 to SS2 (q) to the second signal processor 540. The first and second selectors 520-1 and 520-2 may be multiplexers.

The first signal processor 530 converts the first sensing signals SS1 (1) to SS1 (r) into first digital signals. The second signal processor 540 converts the second sensing signals SS2 (1) to SS2 (q) into second digital signals. The coordinate calculator 550 calculates coordinate information of the first input point PP1 (see FIG. 7A) from the first digital signals, and the second input point PP2 from the second digital signals. The coordinate information of the controller (see 7b).

In addition, the coordinate calculator 550 may calculate coordinate information from the first digital signals and the second digital signals in the third mode. The coordinate calculator 550 may calculate coordinate information of one input point generated by one input means in two ways, or calculate coordinate information of two input points generated by two input means, respectively. .

FIG. 10 is a plan view according to an exemplary embodiment of the present invention in which a portion of FIG. 5 is enlarged. FIG. 10 illustrates first touch electrodes TE1 of some of the first touch electrodes TE1 (1) to TE1 (k) and the second touch electrodes TE2 (1) to TE2 (r). Some of the second touch electrodes TE2 are illustrated. In addition, some of the first touch coils TC1 (1) to TC1 (p) and some of the second touch coils TC2 (1) to TC2 (q) and some of the first touch coils TC1 (1) to TC1 (p). The second touch coils TC2 of FIG.

11A and 11B are enlarged plan views of the AA region of FIG. 10. 11A and 11B illustrate an enlarged view of one of the first sensor units SP1, but the remaining first sensor units may also have a shape illustrated in FIGS. 11A and 11B. In addition, the second sensor parts SP2 may also have a shape shown in FIGS. 11A and 11B.

As shown in FIG. 11A, the first sensor part SP1 overlaps the corresponding pixel areas PXA of the plurality of pixel areas PXA ₁₁ to PXA _nm (see FIG. 1). The first sensor part SP1 may be formed of a transparent metal oxide such as indium tin oxide (ITO) or zinc oxide (ZnO) so that light provided from the backlight passes through the corresponding pixel areas PXA.

As shown in FIG. 11B, the first sensor part SP1 overlaps a portion of the light blocking area LSA adjacent to the corresponding pixel areas PXA. The first sensor part SP1 includes a plurality of horizontal parts SP-L extending in the first direction DR1 and a plurality of vertical parts SP-C extending in the second direction DR2. do.

The plurality of horizontal parts SP-L and the plurality of vertical parts SP-C are connected to each other to form a plurality of openings SP-OP. In other words, the first sensor part SP1 has a mesh shape having the plurality of openings SP-OP.

In this case, the first sensor part SP1 may be made of a metal having a low reflectance. The low reflectance metal may include any one of chromium oxide, chromium nitride, titanium oxide, and titanium nitride, or an alloy thereof.

Although not separately illustrated, the first sensor part SP1 may have a two-layer structure. The first sensor part SP1 of the two-layer structure may include the metal oxide layer shown in FIG. 11A and the mesh metal layer shown in FIG. 11B.

12 is a cross-sectional view taken along line III-III 'of FIG. 10. As shown in FIG. 12, the first sensor part SP1 and the second sensor part SP2 are disposed on the same layer, and the first touch coil TC1 and the second touch coil TC2 are Disposed on the same layer. In other words, the first touch electrode TE1 and the second touch electrode TE2 are disposed on the same layer. The first sensor part SP1 and the second sensor part SP2 form part of a first conductive layer CL1 (see FIG. 2), and the first touch coil TC1 and the second touch coil TC2. Forms part of the second conductive layer CL2 (see FIG. 2).

In detail, the first sensor part SP1 and the second sensor part SP2 are disposed on one surface of the first touch substrate TSS1. A first insulating layer IL-1 covering the first sensor part SP1 and the second sensor part SP2 is disposed on the first touch substrate TSS1. The first touch coil TC1 and the second touch coil TC2 are disposed on the first insulating layer IL-1. A second insulating layer IL-2 covering the first touch coil TC1 and the second touch coil TC2 is disposed on the first insulating layer IL-1. The second touch substrate TSS2 is disposed on the second insulating layer IL-2. Meanwhile, in another embodiment, the positions of the first sensor part SP1, the second sensor part SP2, the first touch coil TC1, and the second touch coil TC2 may be changed.

FIG. 13 is a plan view according to an exemplary embodiment of the present invention showing an enlarged area BB of FIG. 10, and FIG. 14 is a cross-sectional view taken along line IV-IV ′ of FIG. 13. FIG. 15 is a plan view according to an embodiment of the present invention showing an enlarged CC region of FIG. 10, and FIG. 16 is a cross-sectional view taken along the line VV ′ of FIG. 15. FIG. 13 illustrates an area where the first connector CP1 and the second connector CP2 cross each other, and FIG. 15 illustrates an area where the first touch coil TC1 and the second touch coil TC2 cross each other. It is shown in enlarged form.

As shown in FIGS. 13 and 14, the first connection part CP1 includes a plurality of vertical parts CP-C1 and CP-C2, and the second connection part CP2 includes a plurality of horizontal parts CP. -L1, CP-L2). In FIG. 13, two vertical sections CP-C1 and CP-C2 and two horizontal sections CP-L1 and CP-L2 are illustrated. Although not separately illustrated, the first connection part CP1 may further include horizontal parts overlapping the light blocking area LSA and connecting the vertical parts CP-C1 and CP-C2, and the second connection part. CP2 may further include vertical parts overlapping the light blocking area LSA and connecting the horizontal parts CP-L1 and CP-L2.

As illustrated in FIG. 14, the first connection part CP1 and the second connection part CP2 are disposed on the first touch substrate TSS1. The first connection part CP1 is partially cut on the first touch substrate TSS1. In an area where the first connection part CP1 and the second connection part CP2 cross each other, the first connection part CP1 includes a bridge BE1 (hereinafter referred to as a first bridge electrode). The first bridge BE1 connects one end of the cut first connection part CP1 and the other end thereof.

The first insulating layer IL-1 covers the first connection part CP1 and the second connection part CP2. The first insulating layer IL-1 includes a third through hole CH3 and a fourth through hole CH4 partially exposing the first connection part CP1. The third through hole CH3 exposes one end of the cut first connection part CP1, and the fourth through hole CH4 exposes the other end of the cut first connection part CP1.

The first bridge BE1 is disposed on the first insulating layer IL-1. The first bridge BE1 connects vertical parts CP-C1 and CP-C2 of the first connection part CP1 cut through the third through hole CH3 and the fourth through hole CH4. do. Meanwhile, in another embodiment, the second connection part CP2 may be partially cut on the first touch substrate TSS1, and the first bridge BE1 connects the cut second connection part CP2. Can be.

As shown in FIGS. 15 and 16, the first touch coil TC1 includes a plurality of vertical parts TC-C1 and TC-C2, and the second touch coil TC2 includes a plurality of horizontal parts. (TC-L1, TC-L2). In FIG. 15, two vertical sections TC-C1 and TC-C2 and two horizontal sections TC-L1 and TC-L2 are illustrated. Although not separately illustrated, the first touch coil TC1 may further include horizontal parts overlapping the light blocking area LSA and connecting the vertical parts TC-C1 and TC-C2. The touch coil TC2 may further include vertical parts overlapping the light blocking area LSA and connecting the horizontal parts TC-L1 and TC-L2.

The first touch coil TC1 and the second touch coil TC2 are disposed on the first insulating layer IL-1. The first touch coil TC1 is partially cut on the first insulating layer IL-1. In an area where the first touch coil TC1 and the second touch coil TC2 cross each other, the first touch coil TC1 includes a bridge BE2 (hereinafter referred to as a second bridge). The second bridge BE2 connects one end and the other end of the cut first touch coil TC1.

The first insulating layer IL-1 covers the second bridge BE2. The first insulating layer IL-1 includes a fifth through hole CH5 and a sixth through hole CH6 partially exposing the second bridge BE2. The fifth through hole CH5 exposes one end of the second bridge BE2 and exposes the other end of the sixth through hole C6 and the second bridge BE2.

The cut end of the first touch coil TC1 is connected to the second bridge BE2 through the fifth through hole CH5, and the cut other end of the first touch coil TC1 passes through the sixth through hole. It is connected to the second bridge BE2 through the hole CH6. Meanwhile, in another embodiment, the second touch coil TC2 may be partially cut on the first insulating layer IL-1, and the second bridge BE2 is cut off of the second touch coil ( TC2) can be connected.

17 is a cross-sectional view taken along line III-III 'of FIG. 10 according to an embodiment of the present invention. FIG. 18 is an enlarged plan view of a region BB of FIG. 10 according to an embodiment of the present invention, and FIG. 19 is a cross-sectional view taken along line IV-IV ′ of FIG. 18. 20 is an enlarged plan view of the CC region of FIG. 10 according to an embodiment of the present invention, and FIG. 21 is a cross-sectional view taken along the line VV ′ of FIG. 20.

As shown in FIG. 17, the first sensor unit SP1 and the first touch coil TC1 are disposed on the same layer, and the second sensor unit SP2 and the second touch coil TC2 are Disposed on the same layer. The second sensor unit SP2 and the second touch coil TC2 form part of a first conductive layer CL1 (see FIG. 2), and the first sensor unit SP1 and the first touch coil TC1 ) Forms part of the second conductive layer CL2 (see FIG. 2).

The second sensor part SP2 and the second touch coil TC2 are disposed on the first touch substrate TSS1. A first insulating layer IL-1 covering the second sensor part SP2 and the second touch coil TC2 is disposed on the first touch substrate TSS1. The first sensor part SP1 and the first touch coil TC1 are disposed on the first insulating layer IL-1. A second insulating layer IL-2 covering the first sensor part SP1 and the first touch coil TC1 is disposed on the first insulating layer IL-1. The second touch substrate TSS2 is disposed on the second insulating layer IL-2.

As shown in FIGS. 18 and 19, the first connection part CP1 includes a plurality of vertical parts CP-C1 and CP-C2, and the second connection part CP2 includes a plurality of horizontal parts CP. -L1, CP-L2). The second connection part CP2 is disposed on the first touch substrate TSS1. The first connection part CP1 is disposed on the first insulating layer IL-1 covering the second connection part CP2. Since the second connection part CP2 and the first connection part CP1 are disposed on different layers, the first bridge BE1 (see FIGS. 13 and 14) may be omitted.

As shown in FIGS. 20 and 21, the first touch coil TC1 includes a plurality of vertical parts TC-C1 and TC-C2, and the second touch coil TC2 includes a plurality of horizontal parts. (TC-L1, TC-L2). The second touch coil TC2 is disposed on the first touch substrate TSS1. The first touch coil TC1 is disposed on the first insulating layer IL-1 covering the second touch coil TC2. Since the first touch coil TC1 and the second touch coil TC2 are disposed on different layers, the second bridge BE2 (see FIGS. 15 and 16) may be omitted.

FIG. 22 is a plan view according to an exemplary embodiment of the present invention in which a portion of FIG. 5 is enlarged. FIG. 23 is a cross-sectional view according to an embodiment of the present invention taken along line III-III ′ of FIG. 22. FIG. 24 is a plan view according to an embodiment of the present invention showing an enlarged DD region of FIG. 22. FIG. 22 corresponds to FIG. 10. Hereinafter, detailed description of the same configuration as the configuration described with reference to FIGS. 10 to 21 will be omitted.

As shown in FIGS. 22 and 23, the first sensor part SP1 and the second sensor part SP2 are disposed on the same layer, and the first touch coil TC1 and the second touch coil ( TC2) is disposed on the same layer. The first sensor part SP1 and the second sensor part SP2 form a first conductive layer CL1 (see FIG. 2), and the first touch coil TC1 and the second touch coil TC2 are formed of a first conductive layer CL1 (see FIG. 2). 2 conductive layer CL2 (refer FIG. 2). Meanwhile, in another embodiment, the first sensor part SP1 and the second sensor part SP2 form the second conductive layer CL2, and the first touch coil TC1 and the second touch coil ( TC2) may form the second conductive layer CL2.

As illustrated in FIGS. 22 and 24, the first touch coil TC1 and the second touch coil TC2 intersect on the second sensor unit SP2. The second sensor part SP2 overlaps a portion of the light blocking area LSA, and includes a plurality of horizontal parts SP-L and a plurality of vertical parts SP-C. The second sensor part SP2 has a mesh shape having the plurality of openings SP-OP. FIG. 24 illustrates a second sensor unit identical to the sensor unit illustrated in FIG. 11B, but may be modified as shown in FIG. 11A.

The first touch coil TC1 includes a plurality of vertical parts TC-C1 and TC-C2 overlapping a portion of the light blocking area LSA, and the second touch coil TC2 includes the light blocking area ( And a plurality of horizontal portions TC-L1 and TC-L2 overlapping a portion of the LSA. The second bridge BE2 is disposed in an area where the first touch coil TC1 and the second touch coil TC2 cross each other. The second bridge BE2 is disposed on the same layer as the second sensor part SP2. The second bridge BE2 is disposed on one surface of the first touch substrate TSS1 (see FIG. 16).

In order to prevent electrical connection between the second second bridge BE2 and the second sensor part SP2, the second touch coil TC1 and the second touch coil TC2 correspond to a region where the second touch coil TC2 intersects. A part of the second sensor part SP2 is removed. Meanwhile, in another embodiment, the first touch coil TC1 and the second touch coil TC2 may cross on the first sensor unit SP1.

25A to 25C are enlarged plan views illustrating a touch panel according to an exemplary embodiment of the present invention. 25A to 25C are enlarged views of the first touch electrode TE1, the second touch electrode TE2, the first touch coil TC1, and the second touch coil TC2. Meanwhile, the cross-sectional structure of the touch panel illustrated in FIGS. 25A to 25C is the same as that shown in FIG. 17.

As shown in FIGS. 25A and 25B, the first sensor part SP1 of the first touch electrode TE1 and the second sensor part SP2 of the second touch electrode TE2 have different shapes. . As shown in FIG. 25A, the first sensor part SP1 may have a rectangular shape, and the second sensor part SP2 may have a square shape. As illustrated in FIG. 25B, the first sensor part SP1 may have a hexagonal shape, and the second sensor part SP2 may have an octagonal shape. In addition, the first sensor part SP1 and the second sensor part SP2 may be selected to have different shapes among circular, elliptical, and polygonal.

In addition, the first touch coil TC1 includes a plurality of vertical parts TC-C1 to TC-C4, and the second touch coil TC2 includes a plurality of horizontal parts TC-L1 to TC-L4. It includes. As illustrated in FIGS. 25A and 25B, the first touch coil TC1 includes four vertical parts TC-C1 to TC-C4 that are parallel to each other, and the second touch coil TC2 is parallel to each other. Four horizontal sections C-L1 to TC-L4). As the number of the vertical parts TC-C1 to TC-C4 or the horizontal parts TC-L1 to TC-L4 increases, the magnetic field induced from the first touch coil TC1 or the second touch coil TC2. The intensity of is increased. Accordingly, the sensing sensitivity of the touch panel of the second mode is increased.

As shown in FIG. 25C, the first sensor part SP1 and the second sensor part SP2 have a rhombus shape. In addition, the first touch coil TC1 includes two vertical parts TC-C1 and TC-C2, and the second touch coil TC2 includes two horizontal parts TC-L1 and TC-L2. It includes.

The first touch coil TC1 further includes sub vertical parts TC-SC1 and TC-SC2. The second touch coil TC2 further includes sub horizontal parts TC-SL1 and TC-SL2. The sub vertical parts TC-SC1 and TC-SC2 and the sub horizontal parts TC-SL1 and TC-SL2 lower resistance values of each of the first touch coil TC1 and the second touch coil TC2. .

The sub vertical parts TC-SC1 and TC-SC2 are arranged in parallel with the vertical parts TC-C1 and TC-C2 and connected to the points of the vertical parts TC-C1 and TC-C2. The first sub vertical part TC-SC1 connects the first point and the second point of the first vertical part TC-C1. The second sub vertical part TC-SC2 connects the first point and the second point of the second vertical part TC-C2.

The sub horizontal parts TC-SL1 and TC-SL2 are arranged in parallel with the horizontal parts TC-L1 and TC-L2 and connected to the points of the horizontal parts TC-L1 and TC-L2. The sub horizontal parts TC-SL1 and TC-SL2 overlap the first sensor part SP1. The first sub horizontal part TC-SL1 connects the first point and the second point of the first horizontal part TC-L1. The second sub horizontal part TC-SL2 connects the first point and the second point of the second horizontal part TC-L2.

The first sub vertical part TC-SC1 and the second sub vertical part TC-SC2 do not cross the first horizontal part TC-L1 and the second horizontal part TC-L2. The first sub horizontal part TC-SL1 and the second sub horizontal part TC-SL2 do not cross the first vertical part TC-C1 and the second vertical part TC-C2. Vertices of the rhombic first sensor part SP1 are close to regions crossing the horizontal parts TC-L1 and TC-L2 of the vertical parts TC-C1 and TC-C2. Vertices of the second rhombic shape sensor part SP2 are close to regions crossing the vertical parts TC-C1 and TC-C2 of the horizontal parts TC-L1 and TC-L2.

As a result, an area of the first sensor part SP1 and the second sensor part SP2 increases, and the side and the second sensor part SP2 of the first sensor part SP1 facing each other increase. The interval W10 between the sides of is reduced. The capacitance value of the capacitor formed between the side edge of the first sensor part SP1 and the side edge of the second sensor part SP2 is increased. The touch sensitivity of the touch panel operating in the capacitive mode is improved.

FIG. 26A is a plan view illustrating first touch electrodes and first touch coils according to an embodiment of the present invention, and FIG. 26B illustrates second touch electrodes and second touch coils according to an embodiment of the present invention. One floor plan. A touch panel according to the present embodiment will be described with reference to FIGS. 26A and 26B. However, detailed description of the same configuration as those described with reference to FIGS. 1 to 25C will be omitted.

As illustrated in FIG. 26A, each of the first touch coils TC1 (1) to TC1 (p) has a loop shape extending in the second direction DR2. The first touch coils TC1 (1) to TC1 (p) are arranged in the first direction DR1. The first touch coils TC1 (1) to TC1 (p) may overlap in various forms.

Each of the first touch electrodes TE1 (1) to TE1 (k ′) has a bar shape extending in the second direction DR2. The first touch electrodes TE1 (1) to TE1 (k ′) are spaced apart from each other in the first direction DR1. The first touch electrodes TE1 (1) to TE1 (k ′) are disposed in some of the divided regions formed by overlapping the first touch coils TC1 (1) to TC1 (p).

As illustrated in FIG. 26B, each of the second touch coils TC2 (1) to TC2 (q) has a loop shape extending in the first direction DR1. The second touch coils TC2 (1) to TC2 (q) are arranged in the second direction DR2. The second touch coils TC2 (1) to TC2 (q) may overlap in various forms.

The second touch electrodes TE2 (1) to TE2 (r) are spaced apart from each other in the second direction DR2. The second touch electrodes TE2 (1) to TE2 (r) are disposed in divided regions formed by overlapping the second touch coils TC2 (1) to TC2 (q).

Each of the second touch electrodes TE2 (1) to TE2 (r) may include two second touch units TU2. The second touch unit TU2 connects second sensor parts SP2 arranged in the first direction DR1 and second connection parts CP2 that connect two adjacent sensor parts among the second sensor parts SP2. ). Although not separately illustrated, the first touch electrodes TE1 (1) to TE1 (k ′) overlap the connection parts CP2 of the second touch electrodes TE2 (1) to TE2 (r). .

FIG. 27A is a plan view illustrating first touch electrodes and first touch coils according to an embodiment of the present invention, and FIG. 27B illustrates second touch electrodes and second touch coils according to an embodiment of the present invention. One floor plan. Hereinafter, the touch panel according to the present exemplary embodiment will be described with reference to FIGS. 27A and 27B. However, detailed description of the same configuration as those described with reference to FIGS. 1 to 25C will be omitted.

As shown in FIG. 27A, each of the first touch coils TC1 (1) to TC1 (p) has a loop shape extending in the second direction DR2. The first touch coils TC1 (1) to TC1 (p) are arranged in the first direction DR1. The first touch coils TC1 (1) to TC1 (p) may overlap in various forms. The first touch coils TC1 (1) to TC1 (p) may partially overlap each other in units of three touch coils.

Each of the first touch electrodes TE1 (1) to TE1 (k) has a bar shape extending in the second direction DR2. The first touch electrodes TE1 (1) to TE1 (k) are spaced apart from each other in the first direction DR1.

The first touch electrodes TE1 (1) to TE1 (k) are divided regions formed by the first touch coils overlapping each other among the first touch coils TC1 (1) to TC1 (p). Is placed on.

As shown in FIG. 27B, each of the second touch coils TC2 (1) to TC2 (q) has a loop shape extending in the first direction DR1. The second touch coils TC2 (1) to TC2 (q) are arranged in the second direction DR2. The second touch coils TC2 (1) to TC2 (q) may overlap in various forms. The second touch coils TC2 (1) to TC2 (q) may be partially overlapped in units of three touch coils.

Each of the second touch electrodes TE2 (1) to TE2 (r) has a bar shape extending in the first direction DR1. The second touch electrodes TE2 (1) to TE2 (r) are spaced apart from each other in the second direction DR2. The second touch electrodes TE2 (1) to TE2 (r) are divided regions formed by the second touch coils overlapping each other among the second touch coils TC2 (1) to TC2 (q). Is placed on.

28 is a plan view illustrating a touch panel according to an embodiment of the present invention. Hereinafter, the touch panel according to the present embodiment will be described with reference to FIG. 28. However, detailed descriptions of the same components as those described with reference to FIGS. 1 to 25B will be omitted.

As illustrated in FIG. 28, each of the first touch coils TC1 (1) to TC1 (p) has a loop shape extending in the second direction DR2. The first touch coils TC1 (1) to TC1 (p) are arranged in the first direction DR1. Each of the second touch coils TC2 (1) to TC2 (q) has a loop shape extending in the first direction DR1. The second touch coils TC2 (1) to TC2 (q) are arranged in the second direction DR2.

The first touch electrodes TE1 (1) to TE1 (k) and the second touch electrodes TE2 (1) to TE2 (r) cross each other. Each of the first touch electrodes TE1 (1) to TE1 (k) and the second touch electrodes TE2 (1) to TE2 (r) has a bar shape. Meanwhile, the shapes of the first touch electrodes TE1 (1) to TE1 (k) and the second touch electrodes TE2 (1) to TE2 (r) are not limited thereto.

The first touch coils TC1 (1) to TC1 (p) do not overlap each other, and the second touch coils TC2 (1) to TC2 (q) do not overlap each other. Each of the first touch electrodes TE1 (1) to TE1 (k) is disposed in an area formed by a corresponding touch coil among the first touch coils TC1 (1) to TC1 (p). In other words, each of the first touch electrodes TE1 (1) to TE1 (k) is surrounded by a corresponding touch coil among the first touch coils TC1 (1) to TC1 (p). Each of the second touch electrodes TE2 (1) to TE2 (r) is disposed in an area formed by a corresponding touch coil among the second touch coils TC2 (1) to TC2 (q). Each of the second touch electrodes TE2 (1) to TE2 (r) is surrounded by a corresponding touch coil among the second touch coils TC2 (1) to TC2 (q).

29A and 29B are cross-sectional views of a display device according to an exemplary embodiment of the present invention. 29A and 29B are cross-sectional views taken along line II ′ of FIG. 2. Hereinafter, the touch panel according to the present embodiment will be described with reference to FIGS. 29A and 29B. However, detailed description of the same configuration as those described with reference to FIGS. 1 to 28 will be omitted.

As shown in FIG. 29A, the first display substrate DS1 is disposed under the liquid crystal layer LCL, and the second display substrate DS2 is disposed above the liquid crystal layer LCL. The touch panel TP10 is disposed on the second display substrate DS2.

The touch panel TP includes a first conductive layer CL1, an insulating layer IL, a second conductive layer CL2, and a touch substrate TSS (corresponding to the second touch substrate TSS2 of FIG. 3A). do. The first conductive layer CL1 is disposed on an upper surface of the second display substrate DS2. Unlike the touch panel which is manufactured separately and attached to the display panel, the touch panel TP10 is directly manufactured on the upper surface of the second display substrate DS2. After forming the first conductive layer CL1 on the upper surface of the second display substrate DS2, the insulating layer IL, the second conductive layer CL2, and the touch substrate TSS are sequentially stacked. do.

Each of the first conductive layer CL1 and the second conductive layer CL2 includes a plurality of conductive patterns. As described with reference to FIGS. 1 to 28, the first conductive layer CL1 may include first touch electrodes TE1 (1) to TE1 (k) and second touch electrodes TE2 (1) to TE2 ( r)), some of the first touch coils TC1 (1) to TC1 (p), and some of the second touch coils TC2 (1) to TC2 (q), and the second conductive layer ( CL2 includes the first touch electrodes TE1 (1) to TE1 (k), the second touch electrodes TE2 (1) to TE2 (r), and the first touch coils TC1 (1). ~ TC1 (p), and the other part of the second touch coils TC2 (1) to TC2 (q).

As shown in FIG. 29B, the first display substrate DS1 may be disposed above the liquid crystal layer LCL, and the second display substrate DS2 may be disposed below the liquid crystal layer LCL. have. The touch panel TP10 is disposed on the first display substrate DS1. The configuration of the touch panel TP10 is the same as that of the touch panel illustrated in FIG. 29A.

30A and 30B are cross-sectional views of a display device according to an exemplary embodiment of the present invention. 30A and 30B are cross-sectional views taken along the line II ′ of FIG. 2. Hereinafter, the touch panel according to the present embodiment will be described with reference to FIGS. 30A and 30B. However, detailed description of the same configuration as those described with reference to FIGS. 1 to 28 will be omitted.

As shown in FIG. 30A, the first display substrate DS1 is disposed under the liquid crystal layer LCL, and the second display substrate DS2 is disposed above the liquid crystal layer LCL. The first display substrate DS1 includes a first base substrate SUB1, a plurality of insulating layers 10 and 20, and pixels PX. The second display substrate DS2 includes a second base substrate SUB2, a light-shielding layer BM, and color filters CF.

The touch panel TP20 includes a first conductive layer CL1, a second conductive layer CL2, and a touch substrate TSS (corresponding to the second touch substrate TSS2 of FIG. 3A). The first conductive layer CL1 is disposed on the bottom surface of the second base substrate SUB2. The light blocking layer BM and the color filters CF covering the first conductive layer CL1 are disposed on a lower surface of the second base substrate SUB2. In some embodiments, the first conductive layer CL1 may be disposed on the light blocking layer BM and the color filters CF disposed on the bottom surface of the second base substrate SUB2.

The second conductive layer CL2 is disposed on an upper surface of the second base substrate SUB2. The second base substrate SUB2 has an insulating layer function that separates the first conductive layer CL1 and the second conductive layer CL2.

The touch substrate TSS is disposed on the second conductive layer CL2. Meanwhile, The touch panel TP20 is disposed between the second conductive layer CL2 and the second base substrate SUB2 or an insulating layer disposed between the second conductive layer CL2 and the touch substrate TSS. It may further include.

As shown in FIG. 30B, the first display substrate DS1 is disposed above the liquid crystal layer LCL, and the second display substrate DS2 is disposed below the liquid crystal layer LCL. The configuration of the touch panel TP20 is the same as that of the touch panel illustrated in FIG. 30A.

The first conductive layer CL1 is disposed on the bottom surface of the first base substrate SUB1. An insulating layer 5 covering the first conductive layer CL1 is disposed on a lower surface of the first base substrate SUB1, and a common electrode CE is disposed on the insulating layer 5.

The second conductive layer CL2 is disposed on an upper surface of the first base substrate SUB1. The touch substrate TSS is disposed on the second conductive layer CL2. Meanwhile, in another embodiment, the insulating layer 5 may be replaced with the light blocking layer BM and the color filters CF.

FIG. 31 is a cross-sectional view of a display device according to an exemplary embodiment, and FIGS. 32A to 32E are cross-sectional views of a touch panel according to an exemplary embodiment. Hereinafter, the touch panel according to the present embodiment will be described with reference to FIGS. 31A and 32A to 32E. However, detailed description of the same configuration as those described with reference to FIGS. 1 to 28 will be omitted.

As illustrated in FIG. 31, the first display substrate DS1 is disposed under the liquid crystal layer LCL, and the second display substrate DS2 is disposed above the liquid crystal layer LCL. The first display substrate DS1 includes a first base substrate SUB1, a plurality of insulating layers 10 and 20, and pixels PX. The second display substrate DS2 includes a second base substrate SUB2, a light-shielding layer BM, and color filters CF.

The touch panel TP30 includes a first conductive layer CL1, an insulating layer IL, and a second conductive layer CL2. The first conductive layer CL1, the insulating layer IL, and the second conductive layer CL2 are disposed on the bottom surface of the second base substrate SUB2. More specifically, a first conductive layer CL1 is disposed on a lower surface of the second base substrate SUB2, the insulating layer IL is disposed on the first conductive layer CL1, and the insulating layer ( The second conductive layer CL2 may be disposed on IL.

Hereinafter, a detailed description will be given with reference to FIGS. 32A to 32E. 32A-32E illustrate various layer structures. 32A to 32E are shown based on the conductive pattern of the type shown in FIG. 11B.

As shown in FIG. 32A, the light blocking layer BM and the color filters CF are disposed on a lower surface of the second base substrate SUB2. A first insulating layer IL-1 for planarization is disposed on the light blocking layer BM and the color filters CF. The first conductive layer CL1 is disposed on the first insulating layer IL-1. A second insulating layer IL-2 covering the first conductive layer CL1 is disposed on the first insulating layer IL-1.

The second conductive layer CL2 is disposed on the second insulating layer IL-2. A third insulating layer IL-3 covering the second conductive layer CL2 is disposed on the second insulating layer IL-2. In the present embodiment, the third through hole CH3 and the fourth through hole CH4 described with reference to FIG. 14 and the fifth through hole CH5 and the sixth through hole CH6 described with reference to FIG. It is provided in the 2nd insulating layer IL-2. The third insulating layer IL-3 may be omitted.

As shown in FIG. 32B, the light blocking layer BM and the color filters CF are disposed on a lower surface of the second base substrate SUB2. The color filters CF are disposed to overlap the opening BM-OP of the light blocking layer BM and the light blocking layer BM. The first conductive layer CL1 is disposed on one surface of the color filters CF.

A first insulating layer IL-10 covering the first conductive layer CL1 is disposed on the one surface of the color filters CF. The second conductive layer CL2 is disposed on the first insulating layer IL-10. A second insulating layer IL-20 covering the second conductive layer CL2 is disposed on the first insulating layer IL-10. In the present embodiment, the third through hole CH3 and the fourth through hole CH4 described with reference to FIG. 14 and the fifth through hole CH5 and the sixth through hole CH6 described with reference to FIG. It is provided in the 1st insulating layer IL-10.

As shown in FIG. 32C, the light blocking layer BM is disposed on a lower surface of the second base substrate SUB2. The first conductive layer CL1 is disposed on the light blocking layer BM. The first insulating layer IL-1 covering the light blocking layer BM and the first conductive layer CL1 is disposed on a lower surface of the second base substrate SUB2.

The second conductive layer CL2 is disposed on the first insulating layer IL-1. The second insulating layer IL-2 covering the second conductive layer CL2 is disposed on the first insulating layer IL-1. The color filters CF are disposed on the second insulating layer IL-2 so as to overlap the openings BM-OP and the light blocking layer BM of the light blocking layer BM. A boundary of the color filters CF is formed to overlap the light blocking layer BM. The third insulating layer IL-3 is disposed on the color filters CF.

In the present embodiment, the third through hole CH3 and the fourth through hole CH4 described with reference to FIG. 14 and the fifth through hole CH5 and the sixth through hole CH6 described with reference to FIG. It is provided in the 1st insulating layer IL-1. In addition, in another embodiment of the present invention, the second insulating layer IL-2 may be omitted, and the second conductive layer CL2 may be covered by the color filters CF.

As shown in FIG. 32D, the light blocking layer BM is disposed on a lower surface of the second base substrate SUB2. The first conductive layer CL1 is disposed on the light blocking layer BM. The color filters overlapping the light blocking layer BM and the opening BM-OP of the light blocking layer BM on the bottom surface of the second base substrate SUB2 and covering the first conductive layer CL1. CF is disposed.

The first insulating layer IL-1 is disposed on the color filters CF. The first insulating layer IL-1 provides a flat surface. The second conductive layer CL2 is disposed on the first insulating layer IL-1. The second insulating layer IL-2 covering the second conductive layer CL2 is disposed on the first insulating layer IL-1.

In the present embodiment, the third through hole CH3 and the fourth through hole CH4 described with reference to FIG. 14 and the fifth through hole CH5 and the sixth through hole CH6 described with reference to FIG. The color filters CF and the first insulating layer IL-1 are provided. In addition, in another embodiment of the present invention, the first insulating layer IL-1 may be omitted, and the second conductive layer CL2 may be formed on one surface of the color filters CF.

As shown in FIG. 32E, the light blocking layer BM is disposed on a lower surface of the second base substrate SUB2. The first insulating layer IL-1 covering the light blocking layer BM is disposed on a lower surface of the second base substrate SUB2. The first conductive layer CL1 is disposed on the first insulating layer IL-1. The first conductive layer CL1 may overlap the light blocking layer BM. The color filters CF covering the first conductive layer CL1 are disposed on the first insulating layer IL-1.

The second insulating layer IL-2 is disposed on the color filters CF. The second insulating layer IL-2 provides a flat surface. The second conductive layer CL2 is disposed on the second insulating layer IL-2. The third insulating layer IL-3 covering the second conductive layer CL2 is disposed on the second insulating layer IL-2.

In the present embodiment, the third through hole CH3 and the fourth through hole CH4 described with reference to FIG. 14 and the fifth through hole CH5 and the sixth through hole CH6 described with reference to FIG. The color filters CF and the second insulating layer IL-2 are provided. In addition, in another embodiment of the present invention, the second insulating layer IL-2 may be omitted, and the second conductive layer CL2 may be formed on one surface of the color filters CF.

33 is a cross-sectional view of a display device according to an exemplary embodiment of the present invention. Hereinafter, a touch panel according to the present embodiment will be described with reference to FIG. 33. However, detailed description of the same configuration as those described with reference to FIGS. 1 to 28 will be omitted.

As shown in FIG. 33, the first display substrate DS1 is disposed above the liquid crystal layer LCL, and the second display substrate DS2 is disposed below the liquid crystal layer LCL. The first display substrate DS1 includes a first base substrate SUB1, a plurality of insulating layers 10 and 20, and pixels PX. The second display substrate DS2 includes a second base substrate SUB2, a light-shielding layer BM, and color filters CF.

The touch panel TP30 includes a first conductive layer CL1, an insulating layer IL, and a second conductive layer CL2. The first conductive layer CL1, the insulating layer IL, and the second conductive layer CL2 are disposed on the bottom surface of the first base substrate SUB1.

A first conductive layer CL1 is disposed on the bottom surface of the first base substrate SUB1, the insulating layer IL is disposed on the first conductive layer CL1, and the first conductive layer CL1 is disposed on the insulating layer IL. The second conductive layer CL2 is disposed. An additional insulating layer 5 is disposed on the second conductive layer CL2. And the pixels PX are arranged on the insulating layer 5. [

In the present embodiment, the third through hole CH3 and the fourth through hole CH4 described with reference to FIG. 14 and the fifth through hole CH5 and the sixth through hole CH6 described with reference to FIG. It is provided in the insulating layer IL.

34 is a cross-sectional view of a display device according to an exemplary embodiment of the present invention. Hereinafter, the touch panel according to the present exemplary embodiment will be described with reference to FIG. 34. However, detailed description of the same configuration as those described with reference to FIGS. 1 to 28 will be omitted.

As illustrated in FIG. 34, the first display substrate DS1 is disposed above the liquid crystal layer LCL, and the second display substrate DS2 is disposed below the liquid crystal layer LCL. The first display substrate DS1 includes a first base substrate SUB1, a light blocking layer BM, and color filters CF, a plurality of insulating layers 10 and 20, and pixels PX. . The second display substrate DS2 includes a second base substrate SUB2.

The touch panel TP40 includes a first conductive layer CL1 and a second conductive layer CL2. The first conductive layer CL1 and the second conductive layer CL2 are disposed on the bottom surface of the first base substrate SUB1.

The first conductive layer CL1 is disposed on a lower surface of the first base substrate SUB1, and the light blocking layer BM and the color filters CF are disposed on the first conductive layer CL1. The second conductive layer CL2 is disposed on the light blocking layer BM and the color filters CF. The insulating layer 5 is disposed on the second conductive layer CL2. The pixels PX are disposed on the insulating layer 5.

In the present embodiment, the third through hole CH3 and the fourth through hole CH4 described with reference to FIG. 14 and the fifth through hole CH5 and the sixth through hole CH6 described with reference to FIG. The light blocking layer BM and / or the color filters CF may be provided.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood that various modifications and changes may be made thereto without departing from the scope of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

DP: Display panel TP: Touch panel
100: Signal control unit 200: Gate driver
300: Data driver 400: Touch panel driver
500: touch detection unit

Claims (43)

A display panel including a first display substrate and a second display substrate facing the first display substrate, the display panel being divided into a light blocking region and a plurality of pixel regions; And
And a touch panel including a first conductive layer and a second conductive layer insulated from the first conductive layer, and disposed on a display substrate that provides an input surface among the first display substrate and the second display substrate.
The touch panel includes:
A plurality of first touch electrodes receiving first scan signals;
A plurality of second touch electrodes crossing the plurality of first touch electrodes and outputting first sensing signals according to a change in capacitance;
A plurality of first touch coils disposed in the light blocking area and receiving second scan signals; And
A plurality of second touch coils disposed to overlap the light blocking area, crossing the plurality of first touch coils, and outputting second sensing signals according to a resonance frequency of an input unit;
The first conductive layer includes one of the plurality of second touch electrodes, the plurality of first touch coils, and the plurality of first touch electrodes. The method according to claim 1,
The display substrate providing the input surface includes a base substrate,
And the first conductive layer and the second conductive layer are disposed on one side of the base substrate. The method of claim 2,
The touch panel includes:
A first touch substrate disposed on the base substrate;
An insulating layer disposed between the first conductive layer and the second conductive layer; And
And a second touch substrate facing the first touch substrate with the insulating layer interposed therebetween. The method of claim 2,
The touch panel includes:
An insulating layer disposed on the base substrate and insulating the first conductive layer and the second conductive layer; And
A touch substrate facing the base substrate with the insulating layer interposed therebetween,
And the first conductive layer is disposed on an upper surface of the base substrate. 5. The method of claim 4,
The first conductive layer and the second conductive layer may include any one or alloys of chromium oxide, chromium nitride, titanium oxide, titanium nitride, and the like. Display device characterized in that. The method of claim 2,
And the first conductive layer and the second conductive layer are disposed under the base substrate. The method of claim 6,
The display substrate providing the input surface,
A light blocking layer having a plurality of openings corresponding to the plurality of pixel areas; And
And a plurality of color filters disposed to overlap the plurality of openings. The method of claim 7, wherein
The light blocking layer and the plurality of color filters are disposed on a bottom surface of the base substrate,
And the first conductive layer and the second conductive layer overlap the light blocking layer. The method of claim 7, wherein
The plurality of color filters cover the light blocking layer,
The conductive device of any one of the first conductive layer and the second conductive layer is disposed on the plurality of color filters. The method of claim 7, wherein
The display substrate providing the input surface further includes at least one insulating layer,
The conductive layer of any one of the first conductive layer and the second conductive layer is disposed on the light shielding layer,
The at least one insulating layer covers any one of the conductive layers,
And the other conductive layer of the first conductive layer and the second conductive layer is disposed on the at least one insulating layer. The method of claim 7, wherein
The conductive layer of any one of the first conductive layer and the second conductive layer is disposed on the light shielding layer,
The plurality of color filters cover the one conductive layer,
The other conductive layer of the first conductive layer and the second conductive layer is disposed on the plurality of color filters. The method of claim 7, wherein
The display substrate providing the input surface further includes at least one insulating layer,
The at least one insulating layer covers the light blocking layer,
The conductive layer of any one of the first conductive layer and the second conductive layer is disposed on at least one insulating layer,
The plurality of color filters cover the one conductive layer,
And the other conductive layer of the first conductive layer and the second conductive layer is disposed on the plurality of color filters. The method according to claim 1,
The display substrate providing the input surface includes a base substrate,
And the first conductive layer is disposed on one side of the base substrate, and the second conductive layer is disposed on the other side of the base substrate. The method according to claim 1,
And each of the plurality of first touch electrodes extends in a first direction, and each of the plurality of second touch electrodes extends in a second direction. 15. The method of claim 14,
Each of the plurality of first touch electrodes includes a plurality of first sensor parts arranged in a first direction, and second connection parts connecting two adjacent sensor parts of the plurality of first sensor parts,
Each of the plurality of second touch electrodes may include a plurality of second sensor parts arranged in a second direction crossing the first direction, and second connection parts connecting two adjacent sensor parts of the plurality of second sensor parts. Including display device. 16. The method of claim 15,
The plurality of first touch coils have a shape extending in the first direction, and are arranged in the second direction.
The plurality of second touch coils have a shape extending in the second direction, and are arranged in the first direction. 17. The method of claim 16,
The first touch coils of some of the plurality of first touch coils partially overlap, and the second touch coils of some of the plurality of second touch coils partially overlap. 18. The method of claim 17,
First touch electrodes of some of the plurality of first touch electrodes are disposed in an area formed by the partially overlapping first touch coils,
The second touch electrodes of some of the plurality of second touch electrodes are disposed in an area formed by the partially overlapping second touch coils. 17. The method of claim 16,
The first conductive layer includes the plurality of first touch electrodes and the plurality of second touch electrodes.
The second conductive layer includes the plurality of first touch coils and the plurality of second touch coils. 20. The method of claim 19,
Wherein the first sensor units and the second sensor units are disposed on the same layer. 21. The method of claim 20,
Wherein the first connection portions are disposed on the same layer as the first sensor portions,
And the second connection parts include a bridge intersecting the first sensor parts with an insulating layer interposed therebetween. 22. The method of claim 21,
And the insulating layer is a light blocking layer disposed in the light blocking region. 20. The method of claim 19,
And any one of the plurality of first touch coils and the plurality of second touch coils includes bridges disposed with an insulating layer interposed therebetween. 24. The method of claim 23,
And the insulating layer is a light blocking layer disposed in the light blocking region. 17. The method of claim 16,
The first conductive layer includes the plurality of first touch electrodes and the plurality of first touch coils,
The second conductive layer includes the plurality of second touch electrodes and the plurality of second touch coils. 17. The method of claim 16,
Each of the first sensor units and the second sensor units,
And a plurality of openings overlapping corresponding pixel areas among the plurality of pixel areas. 17. The method of claim 16,
Each of the plurality of first touch coils includes a plurality of vertical parts overlapping the light blocking area and extending in the first direction,
Each of the plurality of second touch coils includes a plurality of horizontal parts overlapping the light blocking area and extending in the second direction.
The plurality of vertical parts are spaced apart in the second direction with corresponding pixel areas among the plurality of pixel areas interposed therebetween,
And the horizontal parts are spaced apart from each other in the first direction with corresponding pixel areas among the plurality of pixel areas interposed therebetween. 28. The method of claim 27,
Each of the plurality of first touch coils further includes a sub vertical part connecting different points of the vertical part of some of the plurality of vertical parts to lower a resistance value,
And each of the plurality of second touch coils further includes a sub horizontal part connecting different points of the horizontal parts of some of the plurality of horizontal parts to lower a resistance value. The method according to claim 1,
The display substrate of any one of the first display substrate and the second display substrate,
A light blocking layer having a plurality of openings corresponding to the plurality of pixel areas; And
And a plurality of color filters disposed to overlap the plurality of openings. 30. The method of claim 29,
The other one of the first display substrate and the second display substrate,
A plurality of signal lines;
And a plurality of pixels connected to corresponding signal lines among the plurality of signal lines and arranged in the plurality of pixel regions. 31. The method of claim 30,
And a liquid crystal layer disposed between the first display substrate and the second display substrate. 31. The method of claim 30,
Wherein each of the plurality of pixels comprises:
A common electrode for receiving a common voltage; And
And a pixel electrode which receives the pixel voltage from the corresponding signal line and forms a transverse electric field with the common electrode. 30. The method of claim 29,
And the light blocking layer and the plurality of color filters are disposed between the first conductive layer and the second conductive layer. 34. The method of claim 33,
And the light blocking layer and the plurality of color filters are disposed between the first conductive layer and the second conductive layer. 30. The method of claim 29,
The display device may further include at least one insulating layer disposed between the first conductive layer and the second conductive layer. The method according to claim 1,
The display device includes:
A touch panel driver configured to selectively provide the first scan signals and the second scan signals; And
And a touch sensing unit for calculating coordinate information of an input point from at least one of the first sensing signals and the second sensing signals. 37. The method of claim 36,
The touch panel driver,
A first scan signal output unit sequentially outputting the first scan signals in a first operation mode in response to a mode selection signal;
A second scan signal output unit sequentially outputting the second scan signals in a second operation mode in response to the mode selection signal; And
A corresponding first scan signal among the first scan signals and a corresponding second scan signal among the second scan signals, and corresponding first touch electrodes and the plurality of first touches among the plurality of first touch electrodes. And a first switch selectively providing the corresponding first touch coil among the coils. 39. The method of claim 37,
The touch panel driver,
Receiving first scan signals of some of the first scan signals or second scan signals of some of the second scan signals, and first touch electrodes of some of the plurality of first touch electrodes or the The display device of claim 1, further comprising second switches that respectively provide a scan signal received to the first touch coils of the plurality of first touch coils. 39. The method of claim 37,
The touch-
In response to the mode selection signal, at least some of the first sensing signals or the plurality of second touch coils of the first sensing signals detected from the second touch electrodes of the at least some of the plurality of second touch electrodes. Third switches selectively outputting at least some second sensing signals detected from at least some of the second touch coils;
A first signal processor converting the at least some first sensing signals into first digital signals;
A second signal processor converting the at least some second sensing signals into second digital signals;
A selector configured to provide signals output from the third switches to the first signal processor or the second signal processor; And
And a coordinate calculator configured to calculate coordinate information of the input point from the first digital signals or the second digital signals. 40. The method of claim 39,
The touch-
First sensing signals detected from second touch electrodes of the other part of the plurality of second touch electrodes or second sensing signals detected from second touch coils of another part of the plurality of second touch coils. And fourth switches for providing the selectors to the selection unit. 37. The method of claim 36,
The touch panel driver,
A first scan signal output unit sequentially outputting the first scan signals to the plurality of first touch electrodes in response to a mode selection signal; And
And a second scan signal output unit configured to sequentially output the second scan signals to the plurality of first touch coils in response to the mode selection signal. 42. The method of claim 41,
And the second scan signals are sequentially output from the second scan signal output unit while the first scan signals are sequentially output from the first scan signal output unit. 42. The method of claim 41,
A first signal processor converting the first sensing signals into first digital signals;
A second signal processing unit for converting the second sensing signals into second digital signals;
A first selector for sequentially providing the first sensing signals received from the plurality of second touch electrodes to the first signal processor;
A second selector for sequentially providing the second sensing signals received from the plurality of second touch coils to the second signal processor;
And a coordinate calculation unit that calculates coordinate information of the input point from at least any one of the first digital signals or the second digital signals.

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