TWI867929B - Electronic chip, display device and information processing device with uplink signal generating function - Google Patents

Abstract

The present invention discloses an electronic chip with an uplink signal generating function, which is used for electrically connecting a touch module; its characteristic is that the electronic chip is configured to perform the following functions: when the touch module is pressed by a hand, an uplink signal is driven to the common electrodes of a plurality of columns not covered by the hand, and the remaining common electrodes are grounded, thereby eliminating the noise derived from the hand superimposed on the uplink signal and at the same time achieving the effect of increasing the strength of the uplink signal, so that the touch pen can still normally recognize the uplink signal even when the user presses the screen with his hand.

Description

Electronic chip, display device and information processing device with uplink signal generating function

The present invention relates to the technical field of TDDI chips or touch chips, and in particular to an electronic chip with an uplink signal generating function, which is integrated into an electronic device with a touch function (such as a tablet computer) and is configured to enable the electronic device to transmit high-quality, high-strength uplink signals to a touch pen.

FIG1 is a three-dimensional diagram of a tablet computer and a touch pen. As shown in FIG1, in recent years, in addition to controlling electronic devices with touch functions and large-size screens (such as tablet computers 1a) by finger touch, users also purchase a touch pen 2a for touch operation of the tablet computer 1a. During normal operation, a TDDI chip or a touch chip in the tablet computer 1a periodically transmits an uplink signal to the touch pen 2a, and the touch pen 2a periodically returns a downlink signal.

At present, touch modules with in-cell touch panels have become mainstream applications because of their better thickness and surface. Figure 2 is a schematic side sectional view of a touch module with an in-cell touch panel. As shown in Figure 2, the touch module 3a includes: an LED backlight panel 31a, a bottom polarization film 32a, a TFT substrate 33a, a bottom electrode layer 34a, an LCD panel 35a, a color filter plate 36a, a top electrode layer 37a, and a glass cover plate 38a, wherein the LCD panel 35a and the color filter plate 36a form a dielectric layer, thereby forming an in-cell touch panel together with the bottom electrode layer 34a and the top electrode layer 37a.

Electronic engineers familiar with the design and manufacture of touch modules should know that the TFT substrate 33a has a plurality of pixel circuits, and the bottom electrode layer 34a includes a plurality of common electrodes correspondingly coupled to the plurality of pixel circuits. FIG. 3 is a top view of the plurality of pixel circuits and the plurality of common electrodes. As shown in FIG. 2 and FIG. 3, the bottom electrode layer 34a is disposed on the TFT substrate 33a and includes K common electrodes 341a, so that L pixel circuits 331a share one common electrode 341a, where K and L are both positive integers. To explain in more detail, with the horizontal direction being a row (Line) and the vertical direction being a column (Column), multiple pixel circuits 331a in the same column are coupled to the same source line 33Sa, and multiple pixel circuits 331a in the same row are coupled to the same gate line 33Ga.

In current applications, a plurality of the common electrodes 341a are usually used as a plurality of signal receiving (RX) electrodes of the embedded touch panel, and a plurality of top electrodes of the top electrode layer 37a are used as a plurality of signal transmitting (TX) electrodes of the embedded touch panel. Furthermore, as shown in FIG. 2 and FIG. 3 , each of the common electrodes 341a is coupled to a vertical first metal line 34Ma, so that the TDDI chip controls each of the common electrodes 341a in a column direction. Specifically, the TDDI chip transmits an uplink signal to the touch pen 2a through the plurality of the common electrodes 341a, and also receives a downlink signal from the touch pen 2a through the plurality of the common electrodes 341a. It should be noted that in actual application, each common electrode 341a can be coupled to a second horizontal metal line (not shown) so that the TDDI chip can control each common electrode 341a in the line direction.

Practical experience shows that, due to the limitation of the integrated circuit process of the TDDI chip, the voltage that can be applied to the signal receiving (RX) electrode usually does not exceed 5.5V, that is, the voltage level of the uplink signal does not exceed 5.5V. On the other hand, when using a tablet computer, the user usually holds the stylus 2a with the right hand and presses the tablet computer screen with the left hand; in this case, because the voltage level of the uplink signal does not exceed 5.5V, the noise generated by the user's left hand will seriously affect the quality of the uplink signal, causing the stylus 2a to be unable to normally identify the uplink signal received by the signal receiving electrode. In summary, it is necessary to consider increasing the strength of the uplink signal sent by the existing TDDI chip through the signal receiving electrode, so that the stylus 2a can still normally identify the uplink signal it receives even when the user presses the screen with his left hand (or right hand).

From the above description, it can be seen that this field urgently needs a new type of electronic chip with uplink signal generation function.

The main purpose of the present invention is to provide an electronic chip with an uplink signal generating function, which can be a touch chip or a TDDI chip, and is used to electrically connect a touch module. According to the present invention, the electronic chip is configured to perform the following functions: when the touch module is pressed by a hand, an uplink signal is driven to the common electrodes of a plurality of columns not covered by the hand, and the remaining common electrodes are grounded, thereby eliminating the noise derived from the hand superimposed on the uplink signal and at the same time achieving the effect of increasing the strength of the uplink signal, so that the touch pen can still normally identify the uplink signal even when the user presses the screen with his hand.

To achieve the above-mentioned purpose, the present invention provides an electronic chip with an uplink signal generating function, which is used to electrically connect a touch module to execute a touch detection procedure of a touch pen. The touch detection procedure is characterized in that the touch detection procedure depends on whether a hand pressing event exists, and includes: when the hand pressing event is not detected on the touch module and the pen tip of the touch pen is not detected, the electronic chip transmits an uplink signal to the common electrode of each column of the touch module, At the same time, a first electrical processing is performed on each source line of the touch module; and When the hand pressing event and the pen tip touch point of the touch pen are detected on the touch module, the electronic chip transmits an uplink signal to a strip sensing area centered on the common electrode of a column where the pen tip touch point is located, the strip sensing area includes the common electrodes of the odd columns, and the common electrodes of each column outside the strip sensing area are grounded, and at the same time, a second electrical processing is performed on each source line of the touch module.

In one embodiment, when the strip sensing area overlaps with the multiple columns of common electrodes covered by the hand pressing event, the electronic chip grounds the multiple rows of common electrodes covered by the hand pressing event.

In one embodiment, the electrical processing is to drive the upstream signal to the source line or switch the source line to a high impedance state (Hi-Z).

N/P，且q、r、s為正整數；以及執行一第三信號驅動操作：在該觸控模組由所述手部按壓且由所述觸控筆觸控操作的情況下，若所述手部的按壓範圍涵蓋第j欄至第j+q欄的所述公共電極且所述觸控筆的該筆尖所落在第j欄至第j+q欄之中的一個所述公共電極，將該上行信號驅動至該筆尖所落在的所述公共電極之所屬第r欄以及第r欄至第r-s欄和第r欄至第r+s欄的所述公共電極，將由所述手部的按壓範圍所涵蓋複數行(Line)所述公共電極接地，並將餘下的所述公共電極接地。 To achieve the above-mentioned purpose, the present invention proposes another embodiment of the electronic chip with the uplink signal generating function, which is used to electrically connect a touch module; its characteristic is that the electronic chip is configured to include the following functions: executing a first signal driving operation: when the touch module is not pressed by a hand and a touch pen is not used to touch the touch module, an uplink signal is driven to the common electrode of the N/P column included in the touch module, and at the same time, the touch module is electrically connected to the touch module. The N source lines included in the group are subjected to a first electrical processing; wherein P, N, and N/P are all positive integers; a second signal driving operation is performed: when the touch module is pressed by the hand and the touch pen is used for touch operation, if the pressing range of the hand covers the common electrodes of the jth column to the j+qth column and the common electrode where the tip of the touch pen lands does not belong to the jth column to the j+qth column, the uplink signal is driven to the rth column to which the common electrode where the tip of the touch pen lands belongs and the common electrodes of the rth column to the r-s column and the rth column to the r+s column, and the remaining common electrodes are grounded; wherein, j

N/P, and q, r, s are positive integers; and executing a third signal driving operation: when the touch module is pressed by the hand and touched by the touch pen, if the pressing range of the hand covers the common electrodes of the jth column to the j+qth column and the tip of the touch pen falls on one of the common electrodes in the jth column to the j+qth column, the uplink signal is driven to the rth column to which the common electrode where the tip falls belongs, as well as the common electrodes of the rth column to the rsth column and the rth column to the r+sth column, the common electrodes of the multiple rows (Line) covered by the pressing range of the hand are grounded, and the remaining common electrodes are grounded.

In one embodiment, the electronic chip is selected from any one of the group consisting of a touch chip and a touch and display driver integration (TDDI) chip.

In one embodiment, the first electrical processing is to drive the upstream signal to the source line or switch the source line to a high impedance state (Hi-Z).

In a feasible embodiment, the electronic chip is configured to further include the following functions:

A fourth signal driving operation is performed: when the touch module is pressed by the hand and the touch pen is not coupled to the common electrode, the N/P column common electrode is divided into Y sub-blocks including a plurality of odd sub-blocks and a plurality of even sub-blocks, so that each sub-block contains N/(P×Y) common electrodes and N/Y strips. The source line drives the uplink signal to the common electrode belonging to the odd sub-block and grounds the common electrode belonging to the even sub-block in the nth display frame, and drives the uplink signal to the common electrode belonging to the even sub-block and grounds the common electrode belonging to the odd sub-block in the n+1th display frame; Y and n are positive integers.

In one embodiment, when executing the fourth signal driving operation, the electronic chip performs the first electrical processing on the source lines belonging to the odd sub-blocks and performs a second electrical processing on the source lines belonging to the even sub-blocks at the nth display frame, and performs the first electrical processing on the source lines belonging to the even sub-blocks and performs the second electrical processing on the source lines belonging to the odd sub-blocks at the n+1th display frame.

In one embodiment, the second electrical processing is to ground the source line or switch the source line to a high impedance state (Hi-Z).

In one embodiment, when executing the second signal driving operation, the electronic chip simultaneously performs the first electrical processing on the source lines of the rth column, the rth column to the r-sth column, and the rth column to the r+sth column, and performs the second electrical processing on the remaining source lines.

In one embodiment, when executing the third signal driving operation, the electronic chip simultaneously performs the first electrical processing on the source lines of the rth column, the rth column to the r-sth column, and the rth column to the r+sth column, and performs the second electrical processing on the remaining source lines.

N/P，且q、r、s為正整數；以及執行一第三信號驅動操作：在該觸控模組由所述手部按壓且由所述觸控筆觸控操作的情況下，若所述手部的按壓範圍涵蓋第j欄至第j+q欄的所述公共電極且所述觸控筆的該筆尖所落在第j欄至第j+q欄之中的一個所述公共電極，將該上行信號驅動至該筆尖所落在的所述公共電極之所屬第r欄以及第r欄至第r-s欄和第r欄至第r+s欄的所述公共電極，將由所述手部的按壓範圍所涵蓋複數行(Line)所述公共電極接地，並將餘下的所述公共電極接地。 Furthermore, the present invention also provides an embodiment of a display device, which includes a touch module and an electronic chip electrically connected to the touch module and having an uplink signal generating function; the electronic chip is configured to include the following functions: performing a first signal driving operation: when the touch module is not pressed by a hand and a touch pen is not used to touch the touch module, an uplink signal is driven to the common electrode of the N/P columns included in the touch module, and a first electrical treatment is performed on the N source lines included in the touch module; wherein P, N, and N/P are all positive integers; executing a second signal driving operation: when the touch module is pressed by the hand and touched by the touch pen, if the pressing range of the hand covers the common electrodes of the jth column to the j+qth column and the common electrode where the tip of the touch pen lands does not belong to the jth column to the j+qth column, the uplink signal is driven to the common electrodes of the rth column to which the common electrode where the tip of the touch pen lands belongs and the common electrodes of the rth column to the rsth column and the rth column to the r+sth column, and the remaining common electrodes are grounded; wherein, j

N/P, and q, r, s are positive integers; and executing a third signal driving operation: when the touch module is pressed by the hand and touched by the touch pen, if the pressing range of the hand covers the common electrodes of the jth column to the j+qth column and the tip of the touch pen falls on one of the common electrodes in the jth column to the j+qth column, the uplink signal is driven to the rth column to which the common electrode where the tip falls belongs and the common electrodes of the rth column to the rsth column and the rth column to the r+sth column, the common electrodes of the multiple rows (Line) covered by the pressing range of the hand are grounded, and the remaining common electrodes are grounded.

In one embodiment, the electronic chip is any one selected from the group consisting of a touch chip and a touch and display driver integration (TDDI) chip.

In one embodiment, the electrical processing is to drive the upstream signal to the source line or switch the source line to a high impedance state (Hi-Z).

In a feasible embodiment, the electronic chip is configured to further include the following functions:

A fourth signal driving operation is performed: when the touch module is pressed by the hand and the touch pen is not coupled to the common electrode, the N/P column common electrode is divided into Y sub-blocks including a plurality of odd sub-blocks and a plurality of even sub-blocks, so that each sub-block contains N/(P×Y) common electrodes and N/Y strips. The source line drives the uplink signal to the common electrode belonging to the odd sub-block and grounds the common electrode belonging to the even sub-block in the nth display frame, and drives the uplink signal to the common electrode belonging to the even sub-block and grounds the common electrode belonging to the odd sub-block in the n+1th display frame; Y and n are positive integers.

In one embodiment, when executing the fourth signal driving operation, the electronic chip performs the first electrical processing on the source lines belonging to the odd sub-blocks and performs a second electrical processing on the source lines belonging to the even sub-blocks at the nth display frame, and performs the first electrical processing on the source lines belonging to the even sub-blocks and performs the second electrical processing on the source lines belonging to the odd sub-blocks at the n+1th display frame.

In one embodiment, the second electrical processing is to ground the source line or switch the source line to a high impedance state (Hi-Z).

In one embodiment, when executing the second signal driving operation, the electronic chip simultaneously performs the first electrical processing on the source lines of the rth column, the rth column to the r-sth column, and the rth column to the r+sth column, and performs the second electrical processing on the remaining source lines.

In one embodiment, when executing the third signal driving operation, the electronic chip simultaneously performs the first electrical processing on the source lines of the rth column, the rth column to the r-sth column, and the rth column to the r+sth column, and performs the second electrical processing on the remaining source lines.

Furthermore, the present invention also proposes an embodiment of an information processing device, which is characterized in that it has at least one display, and the display includes a touch module and at least one electronic chip of the present invention as described above.

In a feasible embodiment, the information processing device is an electronic device selected from the group consisting of a multimedia information display device (KIOSK), a head-mounted display device, a smart TV, a smart phone, a smart watch, a tablet computer, an all-in-one computer, a notebook computer, an in-vehicle entertainment device, a digital camera, and a video door machine.

1a: Tablet computer

2a: Touch pen

3a: Touch module

31a:LED backlight panel

32a: Bottom polarized diaphragm

33a: TFT substrate

331a: Pixel circuit

33Sa: Source line

33Ga: Gate line

34a: Bottom electrode layer

341a: Common electrode

34Ma: The first metal wire

35a: LCD panel

36a: Color filter

37a: Top electrode layer

38a: Glass cover

1: Information processing device

11: Touch module

111:LED backlight panel

112: Bottom polarized diaphragm

113: TFT substrate

1131: Pixel circuit

113S: Source line

113G: Gate line

114: Bottom electrode layer

1141: Common electrode

114M: First metal wire

115: LCD panel

116: Color filter

117: Top electrode layer

118: Glass cover

12: Electronic chips

2: Stylus

FIG. 1 is a three-dimensional diagram of a tablet computer and a touch pen; FIG. 2 is a schematic side sectional view of a touch module; FIG. 3 is a top view of a plurality of pixel circuits and a plurality of common electrodes; FIG. 4 is a simplified diagram of an information processing device with a touch function to which a method for improving the strength of an uplink signal of the present invention is applied; FIG. 5 is a schematic side sectional view of the touch module shown in FIG. 4; FIG. 6 is a schematic side sectional view of a plurality of pixel circuits and a plurality of common electrodes; FIG. 7 is a first top view of a plurality of common electrodes and a TFT substrate; FIG. 8A is a second top view of a plurality of common electrodes and a TFT substrate; FIG. 8B is a third top view of a plurality of common electrodes and a TFT substrate; FIG. 9 is a fourth top view of a plurality of common electrodes and a TFT substrate; and FIG. 10 is a fifth top view of a plurality of common electrodes and a TFT substrate.

In order to enable the review committee to further understand the structure, features, purpose, and advantages of the present invention, the detailed description of the drawings and preferred specific embodiments is attached as follows.

Fig. 4 is a simplified diagram of an information processing device with a touch function to which a method for improving uplink signal strength of the present invention is applied. As shown in Fig. 4, the information processing device 1 includes a touch module 11 and an electronic chip 12, and Fig. 5 is a schematic side sectional view of the touch module 11 shown in Fig. 4. As shown in Figures 4 and 5, the touch module 11 includes: an LED backlight panel 111, a bottom polarization film 112, a TFT substrate 113, a bottom electrode layer 114, an LCD panel 115, a color filter 116, a top electrode layer 117, and a glass cover 118, wherein the LCD panel 115 and the color filter 116 form a dielectric layer, thereby forming an embedded touch panel together with the bottom electrode layer 114 and the top electrode layer 117.

In more detail, the TFT substrate 113 has a plurality of pixel circuits, and the bottom electrode layer 114 includes a plurality of common electrodes correspondingly coupled to the plurality of pixel circuits. FIG. 6 is a top view of the plurality of pixel circuits and the plurality of common electrodes. As shown in FIG. 5 and FIG. 6, the bottom electrode layer 114 is disposed on the TFT substrate 113 and includes N/P columns of common electrodes 1141, so that L of the pixel circuits 1131 share one common electrode 1141, where N, P, and L are all positive integers. To explain in more detail, with the horizontal direction being a row (Line) and the vertical direction being a column (Column), the multiple pixel circuits 1131 in the same column are coupled to the same source line 113S, and the multiple pixel circuits 1131 in the same row are coupled to the same gate line 113G.

In the touch module 11, the common electrode 1141 of the N/P column is used as the N/P column signal receiving (RX) electrode of the embedded touch panel, and the top electrode of the N/P column of the top electrode layer 117 is used as the N/P column signal transmitting (TX) electrode of the embedded touch panel. In addition, as shown in FIG. 5 and FIG. 6, each of the common electrodes 1141 is coupled to a first metal wire 114M, so that the electronic chip 12 controls each of the common electrodes 1141 in the column direction. Specifically, the electronic chip 12 transmits an uplink signal to a stylus held by the user through the plurality of common electrodes 1141, and also receives a downlink signal from the stylus through the plurality of common electrodes 1141. It should be noted that in actual application, each common electrode 1141 may be coupled to a second horizontal metal line (not shown) so that the electronic chip 12 controls each common electrode 1141 in the line direction.

In a feasible embodiment, the electronic chip 12 may be, but is not limited to, a touch chip or a Touch and Display Driver Integration (TDDI) chip, and the information processing device 1 may be, but is not limited to, a multimedia information chip. Display device (KIOSK), head-mounted display device, smart TV, smart phone, smart watch, tablet computer, all-in-one computer, notebook computer, car entertainment device, digital camera, or video door station.

It should be known that the development and design of the touch module 11 with an embedded touch panel is to reduce the thickness of the information processing device 1. However, there is no high requirement for the thickness of a relatively low-end electronic product 1 (i.e., the information processing device 1). In this case, a conventional touch panel can be stacked (on-cell) on a liquid crystal display module, wherein the liquid crystal display module can be composed of an LED backlight panel 111, a bottom polarization film 112, a TFT substrate 113, a bottom electrode layer 114, an LCD panel 115, and a color filter 116 as shown in FIG. 5, and the glass cover 118 covers the conventional touch panel.

As shown in FIG. 4, FIG. 5, and FIG. 6, the electronic chip 12 is electrically connected to the touch module 11, and the technical feature of the electronic chip 12 is that it is configured to perform the following functions: when the touch module 11 is pressed by the hand, an uplink signal is driven to the common electrodes 1141 of the plurality of columns not covered by the hand, and the remaining common electrodes 1141 are grounded, thereby eliminating the noise derived from the hand superimposed on the uplink signal and at the same time achieving the effect of increasing the strength of the uplink signal, so that a touch pen 2 can still normally identify the uplink signal even when the user presses the touch module 11 with his hand.

Further, FIG. 7, FIG. 8A, FIG. 8B, FIG. 9, and FIG. 10 are first to fifth top views of a plurality of common electrodes 1141 and a TFT substrate 113. As shown in FIG. 4, FIG. 6, and FIG. 7, when the touch module 11 is not pressed by a hand and a touch pen 2 is not used to touch the touch module 11 (i.e., no hand and no pen), the electronic chip (such as TDDI) 12 performs a first signal driving operation, thereby driving an uplink signal to the N/P column common electrodes 1141 included in the touch module 11, and at the same time performs a first electrical processing on the N source lines 113S included in the touch module 11; wherein P and N are both positive integers. In one embodiment, when the common electrode 1141 is coded (i.e., driven with an uplink signal), the corresponding source line 113S may also be coded. In another embodiment, when the common electrode 1141 is coded, the source line 113S is floated to switch it to a high impedance state (Hi-Z) so that the uplink signal driven in the common electrode 1141 has a relatively high signal strength. In other words, the first electrical processing is to drive the uplink signal to the source line or switch the source line to a high impedance state (Hi-Z).

N/P，且q、r、s為正整數。在一實施例中，執行所述第二信號驅動操作之時，該電子晶片12同時對第r欄、第r欄至第r-s欄以及第r欄至第r+s欄的所述源極線113S進行所述第一電性處理(即，打碼或切換至Hi-Z)，並將餘下的所述源極線113S接地。 As shown in FIG. 4, FIG. 6, FIG. 8A and FIG. 8B, when the touch module 11 is pressed by the hand and the touch pen 2 is operated, if the pressing range of the hand covers the common electrodes 1141 of the jth column to the j+qth column and the common electrode 1141 where the tip of the touch pen 2 lands does not belong to the jth column to the j+qth column (i.e., the hand is on a different column), the electronic chip 12 drives the uplink signal to the rth column to which the common electrode 1141 where the tip of the touch pen 2 lands belongs and the common electrodes of the rth column to the rsth column and the rth column to the r+sth column, and the remaining common electrodes are grounded; wherein, the jth column is the common electrode 1141 of the touch pen 2.

N/P, and q, r, s are positive integers. In one embodiment, when the second signal driving operation is performed, the electronic chip 12 simultaneously performs the first electrical processing (i.e., coding or switching to Hi-Z) on the source lines 113S of the rth column, the rth column to the rsth column, and the rth column to the r+sth column, and grounds the remaining source lines 113S.

Further, as shown in FIG. 4 , FIG. 6 and FIG. 9 , when the touch module 11 is pressed by a hand and the touch pen 2 is operated, if the pressing range of the hand covers the common electrodes 1141 of the jth column to the j+qth column and the tip of the touch pen 2 falls on one of the common electrodes 1141 of the jth column to the j+qth column (i.e., the hand and the pen are in the same column), the electronic chip 12 drives the uplink signal to the common electrodes 1141 of the rth column to which the common electrode 1141 falls and the common electrodes 1141 of the rth column to the r-s column and the rth column to the r+s column, and the remaining common electrodes are grounded. At the same time, the electronic chip 12 also grounds the common electrodes 1141 of the multiple lines covered by the pressing range of the hand. Similarly, when executing the third signal driving operation, the electronic chip 12 can also simultaneously perform the first electrical processing (i.e., coding or switching to Hi-Z) on the source lines 113S of the rth column, the rth column to the r-sth column, and the rth column to the r+sth column, and ground the remaining source lines 113S.

On the other hand, as shown in FIG. 4, FIG. 6 and FIG. 10, when the touch module 11 is pressed by a hand and there is no touch pen 2 and the common electrode 1141 for signal coupling (i.e., there is a hand but no pen), the N/P column (Column) common electrode is divided into Y sub-blocks including a plurality of odd sub-blocks and a plurality of even sub-blocks, so that each of the sub-blocks contains N/(P×Y) of the The common electrode 1141 of the N/P column is connected to the common electrode of the odd sub-block and the common electrode of the even sub-block is grounded in the nth display frame, and the common electrode of the even sub-block is grounded in the n+1th display frame; Y and n are positive integers. For example, the N/P column common electrode 1141 is divided into 8 sub-blocks a, b, c, e, f, g, h, where a, c, e, g are odd sub-blocks, and b, d, f, h are even sub-blocks. Afterwards, in the nth display frame, the uplink signal is driven to the common electrode 1141 belonging to the odd sub-blocks a, c, e, g and the common electrode 1141 belonging to the even sub-blocks b, d, f, h is grounded. Then, in the n+1th display frame, the uplink signal is driven to the common electrode 1141 belonging to the even sub-blocks b, d, f, h and the common electrode 1141 belonging to the odd sub-blocks a, c, e, g is grounded.

Similarly, when executing the fourth signal driving operation, the electronic chip performs the first electrical processing on the source line belonging to the odd sub-block and performs a second electrical processing on the source line belonging to the even sub-block at the nth display frame, and performs the first electrical processing on the source line belonging to the even sub-block and performs the second electrical processing on the source line belonging to the odd sub-block at the n+1th display frame. The second electrical processing is to ground the source line or switch the source line to a high impedance state (Hi-Z).

As can be seen from the above, the present invention discloses an electronic chip with an uplink signal generating function, which is used to electrically connect a touch module to execute a touch detection procedure of a touch pen. The touch detection procedure is characterized in that the touch detection procedure depends on whether there is a hand pressing event, and includes: when the hand pressing event is not detected on the touch module and the pen tip of the touch pen is not detected, the electronic chip transmits an uplink signal to each column (C olumn) common electrode, and at the same time, a first electrical processing is performed on each source line of the touch module; and when the hand pressing event and the pen tip touch point of the touch pen are detected on the touch module, the electronic chip transmits an uplink signal to a strip-shaped sensing area centered on the common electrode of a column where the pen tip touch point is located, the strip-shaped sensing area includes the common electrodes of the odd-numbered columns, and the common electrodes of each column outside the strip-shaped sensing area are grounded.

In addition, when the strip sensing area overlaps with the multiple columns of the common electrodes covered by the hand pressing event, the electronic chip grounds the multiple lines of the common electrodes covered by the hand pressing event; and the first electrical processing is to drive the uplink signal to the source line or switch the source line to a high impedance state (Hi-Z).

Thus, the above has completely and clearly described a method of improving uplink signal strength of the present invention; and, from the above, it can be known that the present invention has the following advantages:

(1) The present invention discloses a method for increasing the strength of an uplink signal, which is performed by an electronic chip electrically connected to a touch module. According to the method for increasing the strength of an uplink signal of the present invention, when the touch module is pressed by a hand, the electronic chip drives an uplink signal to the common electrodes of a plurality of columns not covered by the hand, and connects the remaining common electrodes to the ground, thereby eliminating the noise derived from the hand superimposed on the uplink signal and achieving the effect of increasing the strength of the uplink signal at the same time, so that the touch pen can still normally identify the uplink signal even when the user presses the screen with his hand.

(2) The present invention also discloses an electronic chip integrated into an information processing device containing a touch module, wherein the electronic chip is configured to execute a method of improving the strength of an uplink signal of the present invention, thereby enhancing the strength of an uplink signal transmitted to a touch pen through the common electrode of the N/P columns contained in the touch module.

(3) Furthermore, the present invention also discloses an information processing device, which is characterized in that it has at least one display, and the display includes a touch module and at least one electronic chip of the present invention as described above.

It must be emphasized that the above-mentioned case is a preferred embodiment. Any partial changes or modifications that are derived from the technical ideas of this case and are easily inferred by people familiar with the art do not deviate from the scope of the patent rights of this case.

In summary, this case shows that it is very different from the known technology in terms of purpose, means and effect, and it is the first invention that is practical and indeed meets the patent requirements for invention. We sincerely ask the review committee to examine it carefully and grant a patent as soon as possible to benefit the society. This is our utmost prayer.

113: TFT substrate

1141: Common electrode

12: Electronic chips

2: Stylus

Claims (21)

An electronic chip with an uplink signal generating function is used to electrically connect a touch module to execute a touch detection procedure of a touch pen. The touch detection procedure is characterized in that the touch detection procedure depends on whether there is a hand pressing event, and includes: when the hand pressing event is not detected on the touch module and the pen tip of the touch pen is not detected, the electronic chip transmits an uplink signal to the common electrodes of each column of the touch module, and at the same time, the touch module The first electrical processing is performed on each source line of the group; and when the hand pressing event and the pen tip touch point of the touch pen are detected on the touch module, the electronic chip transmits an uplink signal to a strip sensing area centered on the common electrode of a column where the pen tip touch point is located, the strip sensing area includes the common electrodes of the odd columns, and the common electrodes of each column outside the strip sensing area are grounded, and at the same time, a second electrical processing is performed on each source line of the touch module. The electronic chip as described in claim 1, wherein when the strip sensing area overlaps with the common electrodes of multiple columns covered by the hand pressing event, the electronic chip grounds the common electrodes of multiple lines covered by the hand pressing event. An electronic chip as described in claim 1, wherein the first electrical processing is to drive the upstream signal to the source line or switch the source line to a high impedance state (Hi-Z), and the second electrical processing is to ground the source line or switch the source line to a high impedance state (Hi-Z). An electronic chip with an uplink signal generating function is used for electrically connecting a touch module; the electronic chip includes the following functions: performing a first signal driving operation: when the touch module is not pressed by a hand and a touch pen is not used to touch the touch module, an uplink signal is driven to the common electrode of the N/P columns included in the touch module, and a first electrical processing is performed on the N source lines included in the touch module; wherein P, N, and N/P are all positive integer; executing a second signal driving operation: when the touch module is pressed by the hand and touched by the touch pen, if the pressing range of the hand covers the common electrodes of the jth column to the j+qth column and the common electrode where the tip of the touch pen lands does not belong to the jth column to the j+qth column, the uplink signal is driven to the rth column to which the common electrode where the tip of the touch pen lands belongs and the common electrodes of the rth column to the rsth column and the rth column to the r+sth column, and the remaining common electrodes are grounded; wherein, j

N/P, and q, r, s are positive integers; and executing a third signal driving operation: when the touch module is pressed by the hand and touched by the touch pen, if the pressing range of the hand covers the common electrodes of the jth column to the j+qth column and the tip of the touch pen falls on one of the common electrodes in the jth column to the j+qth column, the uplink signal is driven to the rth column to which the common electrode where the tip falls belongs and the common electrodes of the rth column to the rsth column and the rth column to the r+sth column, the common electrodes of the multiple rows (Line) covered by the pressing range of the hand are grounded, and the remaining common electrodes are grounded. An electronic chip as described in claim 4, wherein the first electrical processing is to drive the upstream signal to the source line or switch the source line to a high impedance state (Hi-Z). The electronic chip as described in claim 5 is configured to further include the following functions: performing a fourth signal driving operation: when the touch module is pressed by the hand and there is no signal coupling between the touch pen and the common electrode, dividing the N/P column common electrode into Y sub-blocks including a plurality of odd sub-blocks and a plurality of even sub-blocks, so that each of the sub-blocks contains N/(P×Y) The common electrodes and N/Y source lines are connected to the common electrodes of the odd sub-blocks and the common electrodes of the even sub-blocks are grounded in the nth display frame, and the common electrodes of the even sub-blocks are grounded in the n+1th display frame; Y and n are positive integers. The electronic chip as described in claim 6, wherein when executing the fourth signal driving operation, the electronic chip performs the first electrical processing on the source lines belonging to the odd sub-blocks and performs a second electrical processing on the source lines belonging to the even sub-blocks at the nth display frame, and performs the first electrical processing on the source lines belonging to the even sub-blocks and performs the second electrical processing on the source lines belonging to the odd sub-blocks at the n+1th display frame. An electronic chip as described in claim 7, wherein the second electrical processing is to ground the source line or switch the source line to a high impedance state (Hi-Z). The electronic chip as described in claim 8, wherein when executing the second signal driving operation, the electronic chip simultaneously performs the first electrical processing on the source lines of the rth column, the rth column to the r-sth column, and the rth column to the r+sth column, and performs the second electrical processing on the remaining source lines. The electronic chip as described in claim 8, wherein when executing the third signal driving operation, the electronic chip simultaneously performs the first electrical processing on the source lines of the rth column, the rth column to the r-sth column, and the rth column to the r+sth column, and performs the second electrical processing on the remaining source lines. A display device includes a touch module and an electronic chip electrically connected to the touch module and having an uplink signal generating function; the electronic chip includes the following functions: performing a first signal driving operation: when the touch module is not pressed by a hand and a stylus is not used to touch the touch module, an uplink signal is driven to the common electrode of the N/P columns included in the touch module, and a first electrical processing is performed on the N source lines included in the touch module; wherein P, N, and N/P are all positive integers; performing a second signal driving operation: when the touch module is pressed by the stylus, an uplink signal is driven to the common electrode of the N/P columns included in the touch module, and a first electrical processing is performed on the N source lines included in the touch module; wherein P, N, and N/P are all positive integers; performing a second signal driving operation: when the touch module is pressed by the stylus, an uplink signal is driven to the common electrode of the N/P columns included in the touch module, and a first electrical processing is performed on the N source lines included in the touch module; wherein P, N, and N/P are all positive integers; performing a second signal driving operation: when the touch module is pressed by the stylus, an uplink signal is driven to the common electrode of the N/P columns included in the touch module, and a first electrical processing is performed on the N source lines included in the touch module; wherein P, N, and N/P are all positive integers; performing a second signal driving operation: when the touch module is pressed by the stylus, an uplink signal is driven to the common electrode of the N/P columns included in the touch module, and a first electrical processing is performed on the N source lines included in the touch module; wherein P, N, and N/P are all positive integers; wherein In the case where the hand is pressed and the touch pen is used for touch operation, if the pressing range of the hand covers the common electrodes of the jth column to the j+qth column and the common electrode where the tip of the touch pen lands does not belong to the jth column to the j+qth column, the uplink signal is driven to the rth column to which the common electrode where the tip of the touch pen lands belongs and the common electrodes of the rth column to the rsth column and the rth column to the r+sth column, and the remaining common electrodes are grounded; wherein, j

N/P, and q, r, s are positive integers; and executing a third signal driving operation: when the touch module is pressed by the hand and touched by the touch pen, if the pressing range of the hand covers the common electrodes of the jth column to the j+qth column and the tip of the touch pen falls on one of the common electrodes in the jth column to the j+qth column, the uplink signal is driven to the rth column to which the common electrode where the tip falls belongs and the common electrodes of the rth column to the rsth column and the rth column to the r+sth column, the common electrodes of the multiple rows (Line) covered by the pressing range of the hand are grounded, and the remaining common electrodes are grounded. A display device as described in claim 11, wherein the first electrical processing is to drive the upstream signal to the source line or switch the source line to a high impedance state (Hi-Z). The display device as claimed in claim 12, wherein the electronic chip is configured to further include the following functions: performing a fourth signal driving operation: when the touch module is pressed by the hand and the touch pen is not coupled to the common electrode, dividing the N/P column common electrode into Y sub-blocks including a plurality of odd sub-blocks and a plurality of even sub-blocks, so that each sub-block contains N /(P×Y) common electrodes and N/Y source lines, and in the nth display frame, the uplink signal is driven to the common electrode belonging to the odd sub-block and the common electrode belonging to the even sub-block is grounded, and in the n+1th display frame, the uplink signal is driven to the common electrode belonging to the even sub-block and the common electrode belonging to the odd sub-block is grounded; Y and n are positive integers. The display device as described in claim 13, wherein when executing the fourth signal driving operation, the electronic chip performs the first electrical processing on the source lines belonging to the odd sub-blocks and performs a second electrical processing on the source lines belonging to the even sub-blocks at the nth display frame, and performs the first electrical processing on the source lines belonging to the even sub-blocks and performs the second electrical processing on the source lines belonging to the odd sub-blocks at the n+1th display frame. A display device as described in claim 14, wherein the second electrical processing is to ground the source line or switch the source line to a high impedance state (Hi-Z). The display device as described in claim 15, wherein when the second signal driving operation is performed, the electronic chip simultaneously performs the first electrical processing on the source lines of the rth column, the rth column to the r-sth column, and the rth column to the r+sth column, and performs the second electrical processing on the remaining source lines. The display device as described in claim 15, wherein when executing the third signal driving operation, the electronic chip simultaneously performs the first electrical processing on the source lines of the rth column, the rth column to the r-sth column, and the rth column to the r+sth column, and performs the second electrical processing on the remaining source lines. A display device includes a touch module and an electronic chip electrically connected to the touch module and having an uplink signal generating function. The electronic chip is used to execute a touch detection program of a touch pen. The touch detection program is characterized in that the touch detection program depends on whether a hand pressing event exists, and includes: when the hand pressing event is not detected on the touch module and the pen tip of the touch pen is not detected, the electronic chip transmits an uplink signal to each column of the touch module. The common electrode is connected to the touch module, and each source line of the touch module is subjected to a first electrical processing; and when the hand pressing event and the touch pen tip touch point are detected on the touch module, the electronic chip transmits an uplink signal to a strip sensing area centered on the common electrode of a column where the tip touch point is located, the strip sensing area includes the common electrodes of the odd columns, and the common electrodes of each column outside the strip sensing area are grounded, and each source line of the touch module is subjected to a second electrical processing. A display device as described in claim 18, wherein when the strip sensing area overlaps with the common electrodes of multiple columns covered by the hand pressing event, the electronic chip grounds the common electrodes of multiple lines covered by the hand pressing event. A display device as described in claim 18, wherein the first electrical processing is to drive the upstream signal to the source line or switch the source line to a high impedance state (Hi-Z), and the second electrical processing is to ground the source line or switch the source line to a high impedance state (Hi-Z). An information processing device, characterized in that it has a display device as described in any one of claim 11 to claim 17.