Multiplexer applied to display device

A multiplexer applied to a display device includes: a plurality of switching units, electrically coupled to a data driver and a plurality of pixel units, where the switching units are adapted to receive a plurality of input display data signals output by the data driver, and the switching units output a plurality of output display data signals to the electrically coupled pixel units, where each of the switching units includes a plurality of switch units, configuration locations of the switch units in each of the switching units are the same as, and some of the switch units configured at a same configuration location in the different switching units are electrically coupled to different control signal lines and have different wiring lengths, where the wiring lengths are distances between the switch units and the control signal lines.

CROSS-REFERENCE TO RELATED PATENT APPLICATION

This non-provisional application claims priority to and the benefit of, pursuant to 35 U.S.C. § 119(a), patent application Serial No. 106128838 filed in Taiwan on Aug. 24, 2017. The disclosure of the above application is incorporated herein in its entirety by reference.

FIELD

The present invention relates to a multiplexer, and in particular, to a multiplexer applied to a display device.

BACKGROUND

A conventional display device such as a crystal liquid display device includes a display panel having a plurality of rows of pixels, and may have a touch sensing function in cooperation with a touch panel. When the crystal liquid display device intends to perform display, the pixels are charged progressively by using display data, so that the crystal liquid display device may perform display according to the display data. However, in recent years, because the resolution of the crystal liquid display device is increased, within a period of time of displaying a frame, the crystal liquid display device needs to drive more rows of pixels. To effectively reduce a quantity of signal wiring and an occupied area, a display device transfers display data in cooperation with a multiplexer. However, when the parasitic capacitance of the multiplexer is larger, the multiplexer is more susceptible to an alternating-current signal. As a result, the display device generates a relatively large noise. Therefore, how to effectively reduce the parasitic capacitance of the multiplexer is one of the currently important tasks.

SUMMARY

To resolve the foregoing defects, the present invention puts forward an embodiment of a multiplexer applied to a display device. The multiplexer includes: a plurality of switching units, electrically coupled to a data driver and a plurality of pixel units, where the switching units are adapted to receive a plurality of input display data signals output by the data driver, and the switching units output a plurality of output display data signals to the electrically coupled pixel units, where each of the switching units includes a plurality of switch units, configuration locations of the switch units in each of the switching units are the same as, and some of the switch units configured at a same configuration location in the different switching units receive different control signals.

The present invention further puts forward an embodiment of a multiplexer applied to a display device. The multiplexer includes: a plurality of switching units, electrically coupled to a data driver and a plurality of pixel units, where the switching units are adapted to receive a plurality of input display data signals output by the data driver, and the switching units output a plurality of output display data signals to the electrically coupled pixel units, where each of the switching units includes a plurality of switch units, configuration locations of the switch units in each of the switching units are the same as, and some of the switch units configured at a same configuration location in the different switching units are electrically coupled to different control signal lines and have different wiring lengths, where the wiring lengths are distances between the switch units and the control signal lines.

According to the present invention, some of switch units configured at a same configuration location in different switching units are electrically coupled to different control signal lines and have different wiring lengths, that is, some of switch units configured at a same configuration location in different switching units are correspond to different control signal lines and control signals. Therefore, the wiring lengths corresponding to the control signals may be averaged, thereby effectively reducing and balancing a parasitic capacitance value generated corresponding to a same control signal, and then effectively reducing a noise of a display panel.

DETAILED DESCRIPTION

The detailed features and advantages of the present invention are described below in great detail through the following embodiments, and the content of the detailed description is sufficient for persons skilled in the art to understand the technical content of the present invention and to implement the present invention there accordingly. Based upon the content of the specification, the claims, and the drawings, persons skilled in the art can easily understand the relevant objectives and advantages of the present invention. The following embodiments further describe the viewpoints of the present invention, but are not intended to limit the scope of the present invention in any way.

First referring toFIG. 1,FIG. 1is a schematic diagram of an embodiment of a display device100. The display device100is, for example, a crystal liquid display or a light emitting diode display, but is not limited thereto. The display device100includes a data driver10, a multiplexer20, a gate driver30, and a plurality of pixel units40. The data driver10is electrically coupled to the multiplexer20, and the data driver10is adapted to output a plurality of input display data signals SIto the multiplexer20. The multiplexer20is electrically coupled to each pixel unit40by using a data line DL, the multiplexer20is adapted to output a plurality of display data signals SOaccording to the input display data signals SI, and the multiplexer20transfers the display data signals SOto corresponding data lines DL. The gate driver30is electrically coupled to each pixel unit40by using a gate line GL, and the gate driver30is adapted to output a plurality of gate driving signals G to the electrically coupled pixel units40. In this embodiment, an example in which the display device100includes a gate driver30aand a gate driver30bis used, but the present invention is not limited thereto. Each pixel unit40is adapted to receive a corresponding display data signal SOby using an electrically coupled data line DL and receive a corresponding gate driving signal G by using an electrically coupled gate line GL, and each pixel unit40determines, according to the received gate driving signal G, whether to receive the display data signal SO.

Then referring toFIG. 2A,FIG. 2Ais a schematic diagram of a first equivalent circuit embodiment of a multiplexer20according to the present invention. The multiplexer20includes a plurality of switching units21. In this embodiment, the multiplexer20includes at least one first switching unit21aand one second switching unit21b, but the present invention is not limited thereto. Each switching unit21is electrically coupled to a data driver10and a plurality of pixel units40, the switching unit21is adapted to receive a plurality of input display data signals SIoutput by the data driver, and the switching unit21and outputs the input display data signals SIas output display data signals SOand transfers the output display data signals SOto the electrically coupled pixel units40. As shown inFIG. 2A, the switching unit21aoutputs an output display data signal SO1and an output display data signal SO2, and the switching unit21boutputs an output display data signal SO3and an output display data signal SO4.

Each switching unit21includes a plurality of switch units. In this embodiment, each switching unit21includes two switch units, but the present invention is not limited thereto. The switching unit21aincludes a first switch unit T1and a second switch unit T2, the first switch unit T1has a first terminal, a control terminal, and a second terminal, the first terminal of the first switch unit T1is adapted to receive the foregoing input display data signal SI, the control terminal of the first switch unit T1is electrically coupled to a first control signal line22and receives a first control signal CS1, the second terminal of the first switch unit T1is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output the foregoing output display data signal SO1, the first switch unit T1is adapted to determine, according to the first control signal CS1, whether to output the received input display data signal SIas the output display data signal SO1. The second switch unit T2has a first terminal, a control terminal, and a second terminal, the first terminal of the second switch unit T2is electrically coupled to the first terminal of the first switch unit T1and receives the input display data signal SI, the control terminal of the second switch unit T2is electrically coupled to a second control signal line23and receives a second control signal CS2, the second terminal of the second switch unit T2is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output the foregoing output display data signal SO2, the second switch unit T2is adapted to determine, according to the second control signal CS2, whether to output the received input display data signal SIas the output display data signal SO2, and the first switch unit T1and the second switch unit T2are coupled to different data lines DL.

The switching unit21bincludes a third switch unit T3and a fourth switch unit T4, the third switch unit T3has a first terminal, a control terminal, and a second terminal, the first terminal of the third switch unit T3receives the input display data signal SI, the control terminal of the third switch unit T3is electrically coupled to the second control signal line23and receives the second control signal CS2, the second terminal of the third switch unit T3is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output the foregoing output display data signal SO3, the third switch unit T3is adapted to determine, according to the second control signal CS2, whether to output the received input display data signal SIas the output display data signal SO3, and the third switch unit T3, the first switch unit T1, and the second switch unit T2are coupled to different data lines DL. The fourth switch unit T4has a first terminal, a control terminal, and a second terminal, the first terminal of the fourth switch unit T4is electrically coupled to the first terminal of the third switch unit T3and receives the input display data signal SI, the control terminal of the fourth switch unit T4is electrically coupled to the first control signal line22and receives the first control signal CS1, the second terminal of the fourth switch unit T4is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output the foregoing output display data signal SO4, and the fourth switch unit T4, the first switch unit T1, the second switch unit T2, and the third switch unit T3are coupled to different data lines DL.

Then referring toFIG. 2B,FIG. 2Bis a schematic diagram of a first configuration embodiment of a first equivalent circuit embodiment of a multiplexer20. The multiplexer20, a first control signal line22, and a second control signal line23may be configured on a substrate of a display device100, but the present invention is not limited thereto. InFIG. 2B, the aforementioned elements are not described again. In this embodiment, a first terminal of a first switch unit T1and a first terminal of a second switch unit T2receive an input display data signal SIby using a conductive line Lin1, the control terminal of the first switch unit T1is electrically coupled to the first control signal line22by using a conductive line Lin2, and a control terminal of the second switch unit T2is electrically coupled to the second control signal line23by using a conductive line Lin3. First terminals of a third switch unit T3and a fourth switch unit T4receive the input display data signal SIby using a conductive line Lin4, a control terminal of the third switch unit T3is electrically coupled to the second control signal line23by using a conductive line Lin5, and a control terminal of the fourth switch unit T4is electrically coupled to the first control signal line22by using a conductive line Lin6.

In this embodiment, configuration locations of the first switch unit T1, the second switch unit T2, the third switch unit T3, and the fourth switch unit T4are in a same row, the second switch unit T2is adjacent to the third switch unit T3and the first switch unit T1in a first direction, the third switch unit T3is adjacent to the second switch unit T2and the fourth switch unit T4in the first direction, the first control signal line22and the second control signal line23extend in the first direction, the first control signal line22is adjacent to the second control signal line23in a second direction, the first control signal line22is more adjacent to the first switch unit T1, the second switch unit T2, the third switch unit T3, and the fourth switch unit T4than the second control signal line23, and the first direction and the second direction are perpendicular to each other. Moreover, the conductive line Lin2has a first wiring length D1, and the first wiring length D1is also a path distance of the conductive line Lin2running from the control terminal of the first switch unit T1to the first control signal line22. The conductive line Lin3has a second wiring length D2, and the second wiring length D2is also a path distance of the conductive line Lin3running from the control terminal of the second switch unit T2to the second control signal line23. The conductive line Lin5has a third wiring length D3, and the third wiring length D3is also a path distance of the conductive line Lin5running from the control terminal of the third switch unit T3to the second control signal line23. The conductive line Lin6has a fourth wiring length D4, and the fourth wiring length D4is also a path distance of the conductive line Lin6running from the control terminal of the fourth switch unit T4to the first control signal line22. Therefore, the first wiring length D1of the conductive line Lin2is less than the second wiring length D2of the conductive line Lin3, the third wiring length D3of the conductive line Lin5is greater than the fourth wiring length D4of the conductive line Lin6, and the second wiring length D2and the third wiring length D3are greater than the first wiring length D1and the fourth wiring length D4.

Referring toFIG. 2C,FIG. 2Cis a schematic diagram of a second configuration embodiment of a first equivalent circuit embodiment of a multiplexer20. InFIG. 2C, the aforementioned elements are not described again. In this embodiment, a first switch unit T1and a third switch unit T3are adjacent in a first direction and are configured in a first row, a second switch unit T2and a fourth switch unit T4are adjacent in the first direction and are configured in a second row, the first switch unit T1and the second switch unit T2are adjacent in a second direction, the third switch unit T3and the fourth switch unit T4are adjacent in the second direction, the first row and the second row are adjacent in the second direction, the first switch unit T1and the third switch unit T3are far away from a first control signal line22and a second control signal line23, the second switch unit T2and the fourth switch unit T4are adjacent to the first control signal line22and the second control signal line23, and the first control signal line22is more adjacent to the second switch unit T2and the fourth switch unit T4than the second control signal line23, where the first direction and the second direction are perpendicular to each other. Therefore, in this embodiment, a third wiring length D3of a conductive line Lin5is greater than a first wiring length D1of a conductive line Lin2, the first wiring length D1of the conductive line Lin2is greater than a second wiring length D2of a conductive line Lin3, and the second wiring length D2of the conductive line Lin3is greater than a fourth wiring length D4of a conductive line Lin6.

It may be summarized according to the embodiments ofFIG. 2BandFIG. 2Cthat, configuration locations of switch units in each switching unit21are the same. As shown inFIG. 2B, the first switch unit T1and the second switch unit T2are horizontally adjacent to each other and the third switch unit T3and the fourth switch unit T4are horizontally adjacent to each other, or as shown inFIG. 2C, the first switch unit T1and the second switch unit T2are vertically adjacent to each other and the third switch unit T3and the fourth switch unit T4are vertically adjacent to each other. Moreover, switch units configured at a same configuration location in different switching units21receive different control signals CS. As shown inFIG. 2BandFIG. 2C, the first switch unit T1and the third switch unit T3at a same configuration location respectively receive the first control signal CS1and the second control signal CS2, and the second switch unit T2and the fourth switch unit T4at a same configuration location respectively receive the second control signal CS2and the first control signal CS1.

Referring toFIG. 3A,FIG. 3Ais a schematic diagram of a second equivalent circuit embodiment of a multiplexer20according to the present invention. In this embodiment, an example in which the multiplexer20includes at least one first switching unit21a, one second switching unit21b, one third switching unit21c, one fourth switching unit21d, one fifth switching unit21e, and one sixth switching unit21fis used to perform description. The first switching unit21aincludes a first switch unit T1, a second switch unit T2, and a third switch unit T3, the first switch unit T1has a first terminal, a control terminal, and a second terminal, the first terminal of the first switch unit T1receives an input display data signal SI, the control terminal of the first switch unit T1is electrically coupled to a first control signal line22and receives a first control signal CS1, the second terminal of the first switch unit T1is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO1, and the first switch unit T1is adapted to determine, according to the first control signal CS1, whether to output the received input display data signal SIas the output display data signal SO1. The second switch unit T2has a first terminal, a control terminal, and a second terminal, the first terminal of the second switch unit T2is electrically coupled to the first terminal of the first switch unit T1and receives the input display data signal SI, the control terminal of the second switch unit T2is electrically coupled to a second control signal line23and receives a second control signal CS2, the second terminal of the second switch unit T2is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO2, and the second switch unit T2is adapted to determine, according to the second control signal CS2, whether to output the received input display data signal SIas the output display data signal SO2. The third switch unit T3has a first terminal, a control terminal, and a second terminal, the first terminal of the third switch unit T3is electrically coupled to the first terminal of the first switch unit T1and the first terminal of the second switch unit T2and receives the input display data signal SI, the control terminal of the third switch unit T3is electrically coupled to a third control signal line24and receives a third control signal CS3, the second terminal of the third switch unit T3is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO3, and the third switch unit T3is adapted to determine, according to the third control signal CS3, whether to output the received input display data signal SIas the output display data signal SO3.

The second switching unit21bincludes a fourth switch unit T4, a fifth switch unit T5, and a sixth switch unit T6. The fourth switch unit T4has a first terminal, a control terminal, and a second terminal, the first terminal of the fourth switch unit T4receives the input display data signal SI, the control terminal of the fourth switch unit T4is electrically coupled to the first control signal line22and receives the first control signal CS1, the second terminal of the fourth switch unit T4is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO4, and the fourth switch unit T4is adapted to determine, according to the first control signal CS1, whether to output the received input display data signal SIas the output display data signal SO4. The fifth switch unit T5has a first terminal, a control terminal, and a second terminal, the first terminal of the fifth switch unit T5is electrically coupled to the first terminal of the fourth switch unit T4and receives the input display data signal SI, the control terminal of the fifth switch unit T5is electrically coupled to the third control signal line24and receives the third control signal CS3, the second terminal of the fifth switch unit T5is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO5, and the fifth switch unit T5is adapted to determine, according to the third control signal CS3, whether to output the received input display data signal SIas the output display data signal SO5. The sixth switch unit T6has a first terminal, a control terminal, and a second terminal, the first terminal of the sixth switch unit T6is electrically coupled to the first terminal of the fourth switch unit T4and the first terminal of the fifth switch unit T5and receives the input display data signal SI, the control terminal of the sixth switch unit T6is electrically coupled to the second control signal line23and receives the second control signal CS2, the second terminal of the sixth switch unit T6is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO6, and the sixth switch unit T6is adapted to determine, according to the second control signal CS2, whether to output the received input display data signal SIas the output display data signal SO6.

The third switching unit21cincludes a seventh switch unit T7, an eighth switch unit T8, and a ninth switch unit T9. The seventh switch unit T7has a first terminal, a control terminal, and a second terminal, the first terminal of the seventh switch unit T7receives the input display data signal SI, the control terminal of the seventh switch unit T7is electrically coupled to the second control signal line23and receives the second control signal CS2, the second terminal of the seventh switch unit T7is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO7, and the seventh switch unit T7is adapted to determine, according to the second control signal CS2, whether to output the received input display data signal SIas the output display data signal SO7. The eighth switch unit T8has a first terminal, a control terminal, and a second terminal, the first terminal of the eighth switch unit T8is electrically coupled to the first terminal of the seventh switch unit T7and receives the input display data signal SI, the control terminal of the eighth switch unit T8is electrically coupled to the first control signal line22and receives the first control signal CS1, the second terminal of the eighth switch unit T8is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO8, and the eighth switch unit T8is adapted to determine, according to the first control signal CS1, whether to output the received input display data signal SIas the output display data signal SO8. The ninth switch unit T9has a first terminal, a control terminal, and a second terminal, the first terminal of the ninth switch unit T9is electrically coupled to the first terminal of the seventh switch unit T7and the first terminal of the eighth switch unit T8and receives the input display data signal SI, the control terminal of the ninth switch unit T9is electrically coupled to the third control signal line24and receives the third control signal CS3, the second terminal of the ninth switch unit T9is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO9, and the ninth switch unit T9is adapted to determine, according to the third control signal CS3, whether to output the received input display data signal SIas the output display data signal SO9.

The fourth switching unit21dincludes a tenth switch unit T10, an eleventh switch unit T11, and a twelfth switch unit T12. The tenth switch unit T10has a first terminal, a control terminal, and a second terminal, the first terminal of the tenth switch unit T10receives the input display data signal SI, the control terminal of the tenth switch unit T10is electrically coupled to the second control signal line23and receives the second control signal CS2, the second terminal of the tenth switch unit is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO10, and the tenth switch unit T10is adapted to determine, according to the second control signal CS2, whether to output the received input display data signal SIas the output display data signal SO10. The eleventh switch unit T11has a first terminal, a control terminal, and a second terminal, the first terminal of the eleventh switch unit T11is electrically coupled to the first terminal of the tenth switch unit T10and receives the input display data signal SI, the control terminal of the eleventh switch unit T11is electrically coupled to the third control signal line24and receives the third control signal CS3, the second terminal of the eleventh switch unit T11is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO11, and the eleventh switch unit T11is adapted to determine, according to the third control signal CS3, whether to output the received input display data signal SIas the output display data signal SO11. The twelfth switch unit T12has a first terminal, a control terminal, and a second terminal, the first terminal of the twelfth switch unit T12is electrically coupled to the first terminal of the tenth switch unit T10and the first terminal of the eleventh switch unit T11and receives the input display data signal SI, the control terminal of the twelfth switch unit T12is electrically coupled to the first control signal line22and receives the first control signal CS1, the second terminal of the twelfth switch unit T12is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO12, and the twelfth switch unit T12is adapted to determine, according to the first control signal CS1, whether to output the received input display data signal SIas the output display data signal SO12.

The fifth switching unit21eincludes a thirteenth switch unit T13, a fourteenth switch unit T14, and a fifteenth switch unit T15. The thirteenth switch unit T13has a first terminal, a control terminal, and a second terminal, the first terminal of the thirteenth switch unit T13receives the input display data signal SI, the control terminal of the thirteenth switch unit T13is electrically coupled to the third control signal line24and receives the third control signal CS3, the second terminal of the thirteenth switch unit T13is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO13, the thirteenth switch unit T13is adapted to determine, according to the third control signal CS3, whether to output the received input display data signal SIas the output display data signal SO13. The fourteenth switch unit T14has a first terminal, a control terminal, and a second terminal, the first terminal of the fourteenth switch unit T14is electrically coupled to the first terminal of the thirteenth switch unit T13and receives the input display data signal SI, the control terminal of the fourteenth switch unit T14is electrically coupled to the first control signal line22and receives the first control signal CS1, the second terminal of the fourteenth switch unit T14is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO14, and the fourteenth switch unit T14is adapted to determine, according to the first control signal CS1, whether to output the received input display data signal SIas the output display data signal SO14. The fifteenth switch unit T15has a first terminal, a control terminal, and a second terminal, the first terminal of the fifteenth switch unit T15is electrically coupled to the first terminal of the thirteenth switch unit T13and the first terminal of the fourteenth switch unit T14and receives the input display data signal SI, the control terminal of the fifteenth switch unit T15is electrically coupled to the second control signal line23and receives the second control signal CS2, the second terminal of the fifteenth switch unit T15is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO15, and the fifteenth switch unit T15is adapted to determine, according to the second control signal CS2, whether to output the received input display data signal SIas the output display data signal SO15.

The sixth switching unit21fincludes a sixteenth switch unit T16, a seventeenth switch unit T17, and an eighteenth switch unit T18. The sixteenth switch unit T16has a first terminal, a control terminal, and a second terminal, the first terminal of the sixteenth switch unit T16receives the input display data signal SI, the control terminal of the sixteenth switch unit T16is electrically coupled to the third control signal line24and receives the third control signal CS3, the second terminal of the sixteenth switch unit T16is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO16, and the sixteenth switch unit T16is adapted to determine, according to the third control signal CS3, whether to output the received input display data signal SIas the output display data signal SO16. The seventeenth switch unit T17has a first terminal, a control terminal, and a second terminal, the first terminal of the seventeenth switch unit T17is electrically coupled to the first terminal of the sixteenth switch unit T16and receives the input display data signal SI, the control terminal of the seventeenth switch unit T17is electrically coupled to the second control signal line23and receives the second control signal CS2, the second terminal of the seventeenth switch unit T17is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO17, and the seventeenth switch unit T17is adapted to determine, according to the second control signal CS2, whether to output the received input display data signal SIas the output display data signal SO17. The eighteenth switch unit T18has a first terminal, a control terminal, and a second terminal, the first terminal of the eighteenth switch unit T18is electrically coupled to the first terminal of the sixteenth switch unit T16and the first terminal of the seventeenth switch unit T17and receives the input display data signal SI, the control terminal of the eighteenth switch unit T18is electrically coupled to the first control signal line22and receives the first control signal CS1, the second terminal of the eighteenth switch unit T18is electrically coupled to one of the data lines DL inFIG. 1and is adapted to output an output display data signal SO18, and the eighteenth switch unit T18is adapted to determine, according to the first control signal CS1, whether to output the received input display data signal SIas the output display data signal SO18.

Then referring toFIG. 3B,FIG. 3Bis a schematic diagram of a first configuration embodiment of a second equivalent circuit embodiment of a multiplexer20. InFIG. 3B, the aforementioned elements are not described again. In this embodiment, a first terminal of a first switch unit T1, a first terminal of a second switch unit T2, and a first terminal of a third switch unit T3receive an input display data signal SIby using a conductive line Lin1. A control terminal of the first switch unit T1is electrically coupled to a first control signal line22by using a conductive line Lin2, the conductive line Lin2has a first wiring length D1, and the first wiring length D1is also a path distance of the conductive line Lin2running from the control terminal of the first switch unit T1to the first control signal line22. A control terminal of the second switch unit T2is electrically coupled to a second control signal line23by using a conductive line Lin3, the conductive line Lin3has a second wiring length D2, and the second wiring length D2is also a path distance of the conductive line Lin3running from the control terminal of the second switch unit T2to the second control signal line23. A control terminal of the third switch unit T3is electrically coupled to the third control signal line24by using a conductive line Lin4, the conductive line Lin4has a third wiring length D3, and the third wiring length D3is also a path distance of the conductive line Lin4running from the control terminal of the third switch unit T3to the third control signal line24.

A first terminal of a fourth switch unit T4, a first terminal of a fifth switch unit T5, and a first terminal of a sixth switch unit T6receive the input display data signal SIby using a conductive line Lin5, a control terminal of the fourth switch unit T4is electrically coupled to the first control signal line22by using a conductive line Lin6, the conductive line Lin6has a fourth wiring length D4, and the fourth wiring length D4is also a path distance of the conductive line Lin6running from the control terminal of the fourth switch unit T4to the first control signal line22. A control terminal of the fifth switch unit T5is electrically coupled to the third control signal line24by using a conductive line Lin7, the conductive line Lin7has a fifth wiring length D5, and the fifth wiring length D5is also a path distance of the conductive line Lin7running from the control terminal of the fifth switch unit T5to the third control signal line24. A control terminal of the sixth switch unit T6is electrically coupled to the second control signal line23by using a conductive line Lin8, the conductive line Lin8has a sixth wiring length D6, and the sixth wiring length D6is also a path distance of the conductive line Lin8running from the control terminal of the sixth switch unit T6to the second control signal line23.

A first terminal of a seventh switch unit T7, a first terminal of an eighth switch unit T8, and a first terminal of a ninth switch unit T9receive the input display data signal SIby using a conductive line Lin9, a control terminal of the seventh switch unit T7is electrically coupled to the second control signal line23by using a conductive line Lin10, the conductive line Lin10has a seventh wiring length D7, and the seventh wiring length D7is also a path distance of the conductive line Lin10running from the control terminal of the seventh switch unit T7to the second control signal line23. A control terminal of the eighth switch unit T8is electrically coupled to the first control signal line22by using a conductive line Lin11, the conductive line Lin11has an eighth wiring length D8, and the eighth wiring length D8is also a path distance of the conductive line Lin11running from the control terminal of the eighth switch unit T8to the first control signal line22. A control terminal of the ninth switch unit T9is electrically coupled to the third control signal line24by using a conductive line Lin12, the conductive line Lin12has a ninth wiring length D9, and the ninth wiring length D9is also a path distance of the conductive line Lin12running from the control terminal of the ninth switch unit T9to the third control signal line24.

A first terminal of a tenth switch unit T10, a first terminal of an eleventh switch unit T11, and a first terminal of the twelfth switch unit T12receive the input display data signal SIby using a conductive line Lin13, a control terminal of the tenth switch unit T10is electrically coupled to the second control signal line23by using a conductive line Lin14, the conductive line Lin14has a tenth wiring length D10, and the tenth wiring length D10is also a path distance of the conductive line Lin14running from the control terminal of the tenth switch unit T10to the second control signal line23. A control terminal of the eleventh switch unit T11is electrically coupled to the third control signal line24by using a conductive line Lin15, the conductive line Lin15has an eleventh wiring length D11, and the eleventh wiring length D11is also a path distance of the conductive line Lin15running from the control terminal of the eleventh switch unit T11to the third control signal line24. A control terminal of the twelfth switch unit T12is electrically coupled to the first control signal line22by using a conductive line Lin16, the conductive line Lin16has a twelfth wiring length D12, and the twelfth wiring length D12is also a path distance of the conductive line Lin16running from the control terminal of the twelfth switch unit T12to the first control signal line22.

A first terminal of a thirteenth switch unit T13, a first terminal of a fourteenth switch unit T14, and a first terminal of a fifteenth switch unit T15receive the input display data signal SIby using a conductive line Lin17, a control terminal of the thirteenth switch unit T13is electrically coupled to the third control signal line24by using a conductive line Lin18, the conductive line Lin18has a thirteenth wiring length D13, and the thirteenth wiring length D13is also a path distance of the conductive line Lin18running from the control terminal of the thirteenth switch unit T13to the third control signal line24. A control terminal of the fourteenth switch unit T14is electrically coupled to the first control signal line22by using a conductive line Lin19, the conductive line Lin19has a fourteenth wiring length D14, and the fourteenth wiring length D14is also a path distance of the conductive line Lin19running from the control terminal of the fourteenth switch unit T14to the first control signal line22. A control terminal of the fifteenth switch unit T15is electrically coupled to the second control signal line23by using a conductive line Lin20, the conductive line Lin20has a fifteenth wiring length D15, and the fifteenth wiring length D15is also a path distance of the conductive line Lin20running from the control terminal of the fifteenth switch unit T15to the second control signal line23.

A first terminal of a sixteenth switch unit T16, a first terminal of a seventeenth switch unit T17, and a first terminal of an eighteenth switch unit T18receive the input display data signal SIby using a conductive line Lin21, a control terminal of the sixteenth switch unit T16is electrically coupled to the third control signal line24by using a conductive line Lin22, the conductive line Lin22has a sixteenth wiring length D16, and the sixteenth wiring length D16is also a path distance of the conductive line Lin22running from the control terminal of the sixteenth switch unit T16to the third control signal line24. A control terminal of the seventeenth switch unit T17is electrically coupled to the second control signal line23by using a conductive line Lin23, the conductive line Lin23has a seventeenth wiring length D17, and the seventeenth wiring length D17is also a path distance of the conductive line Lin23running from the control terminal of the seventeenth switch unit T17to the second control signal line23. A control terminal of the eighteenth switch unit T18is electrically coupled to the first control signal line22by using a conductive line Lin24, the conductive line Lin24has an eighteenth wiring length D18, and the eighteenth wiring length D18is also a path distance of the conductive line Lin24running from the control terminal of the eighteenth switch unit T18to the first control signal line22.

In this embodiment, the first switch unit T1, the fourth switch unit T4, the seventh switch unit T7, the tenth switch unit T10, the thirteenth switch unit T13, and the sixteenth switch unit T16are sequentially configured in a first row and are adjacent to each other in a first direction, the second switch unit T2, the third switch unit T3, the fifth switch unit T5, the sixth switch unit T6, the eighth switch unit T8, the ninth switch unit T9, the eleventh switch unit T11, the twelfth switch unit T12, the fourteenth switch unit T14, the fifteenth switch unit T15, the seventeenth switch unit T17, and the eighteenth switch unit T18are sequentially configured in a second row and are adjacent to each other in the first direction, and the first row and the second row are adjacent in the second direction. The first switch unit T1is adjacent to the second switch unit T2and the third switch unit T3in the second direction, the fourth switch unit T4is adjacent to the fifth switch unit T5and the sixth switch unit T6in the second direction, the seventh switch unit T7is adjacent to the eighth switch unit T8and the ninth switch unit T9in the second direction, the tenth switch unit T10is adjacent to the eleventh switch unit T11and the twelfth switch unit T12in the second direction, the thirteenth switch unit T13is adjacent to the fourteenth switch unit T14and the fifteenth switch unit T15in the second direction, and the sixteenth switch unit T16is adjacent to the seventeenth switch unit T17and the eighteenth switch unit T18in the second direction. The first row is farther away from the first control signal line22, the second control signal line23, and the third control signal line24than the second row, the first control signal line22, the second control signal line23, and the third control signal line24extend in the first direction, the first control signal line22, the second control signal line23, and the third control signal line24are adjacent in the second direction, the third control signal line24is more adjacent to the second row than the first control signal line22and the second control signal line23, and the first control signal line22is farther away from the second row than the second control signal line23and the third control signal line24, where the first direction and the second direction are perpendicular to each other.

Therefore, in the embodiment ofFIG. 3B, the first wiring length D1of the conductive line Lin2and the fourth wiring length D4of the conductive line Lin6are greater than the seventh wiring length D7of the conductive line Lin10and the tenth wiring length D10of the conductive line Lin14. The seventh wiring length D7of the conductive line Lin10and the tenth wiring length D10of the conductive line Lin14are greater than the thirteenth wiring length D13of the conductive line Lin18and the sixteenth wiring length D16of the conductive line Lin22. The thirteenth wiring length D13of the conductive line Lin18and the sixteenth wiring length D16of the conductive line Lin22are greater than the eighth wiring length D8of the conductive line Lin11, the twelfth wiring length D12of the conductive line Lin16, the fourteenth wiring length D14of the conductive line Lin19, and the eighteenth wiring length D18of the conductive line Lin24. The eighth wiring length D8of the conductive line Lin11, the twelfth wiring length D12of the conductive line Lin16, the fourteenth wiring length D14of the conductive line Lin19, and the eighteenth wiring length D18of the conductive line Lin24are greater than the second wiring length D2of the conductive line Lin3, the sixth wiring length D6of the conductive line Lin8, the fifteenth wiring length D15of the conductive line Lin20, and the seventeenth wiring length D17of the conductive line Lin23. The second wiring length D2of the conductive line Lin3, the sixth wiring length D6of the conductive line Lin8, the fifteenth wiring length D15of the conductive line Lin20, and the seventeenth wiring length D17of the conductive line Lin23are greater than the third wiring length D3of the conductive line Lin4, the fifth wiring length D5of the conductive line Lin7, the ninth wiring length D9of the conductive line Lin12, and the eleventh wiring length D11of the conductive line Lin15.

Referring toFIG. 3C,FIG. 3Cis a schematic diagram of a second configuration embodiment of a second equivalent circuit embodiment of a multiplexer20. The embodiment ofFIG. 3Cis applicable to a high-resolution display device100, but the present invention is not limited thereto. InFIG. 3C, the aforementioned elements are not described again. In this embodiment, a first switch unit T1, a fourth switch unit T4, a seventh switch unit T7, a tenth switch unit T10, a thirteenth switch unit T13, and a sixteenth switch unit T16are sequentially configured in a first row and are adjacent to each other in a first direction. A second switch unit T2, a fifth switch unit T5, an eighth switch unit T8, an eleventh switch unit T11, a fourteenth switch unit T14, and a seventeenth switch unit T17are sequentially configured in a second row and are adjacent to each other in the first direction. A third switch unit T3, a sixth switch unit T6, a ninth switch unit T9, a twelfth switch unit T12, a fifteenth switch unit T15, and an eighteenth switch unit T18are sequentially configured in a third row and are adjacent to each other in the first direction. Moreover, the first switch unit T1, the second switch unit T2, and the third switch unit T3are sequentially arranged in a second direction and are adjacent to each other, the fourth switch unit T4, the fifth switch unit T5, and the sixth switch unit T6are sequentially arranged in the second direction and are adjacent to each other, the seventh switch unit T7, the eighth switch unit T8, and the ninth switch unit T9are sequentially arranged in the second direction and are adjacent to each other, the tenth switch unit T10, the eleventh switch unit T11, and the twelfth switch unit T12are sequentially arranged in the second direction and are adjacent to each other, the thirteenth switch unit T13, the fourteenth switch unit T14, and the fifteenth switch unit T15are sequentially arranged in the second direction and are adjacent to each other, and the sixteenth switch unit T16, the seventeenth switch unit T17, and the eighteenth switch unit T18are sequentially arranged in the second direction and are adjacent to each other. The first row, the second row, and the third row are sequentially arranged in the second direction, the first row is farther away from a first control signal line22, a second control signal line23, and a third control signal line24than the second row and the third row, the third row is more adjacent to the first control signal line22, the second control signal line23, and the third control signal line24than the first row and the second row, the third control signal line24is more adjacent to the third row than the first control signal line22and the second control signal line23, and the first control signal line22is farther away from the third row than the second control signal line23and the third control signal line24. In this embodiment, the first direction and the second direction are perpendicular to each other.

Therefore, in the embodiment ofFIG. 3C, a first wiring length D1of a conductive line Lin2and a fourth wiring length D4of a conductive line Lin6are greater than a seventh wiring length D7of a conductive line Lin10and a tenth wiring length D10of a conductive line Lin14, the seventh wiring length D7of the conductive line Lin10and the tenth wiring length D10of the conductive line Lin14are greater than a thirteenth wiring length D13of a conductive line Lin18and a sixteenth wiring length D16of a conductive line Lin22, the thirteenth wiring length D13of the conductive line Lin18and the sixteenth wiring length D16of the conductive line Lin22are greater than an eighth wiring length D8of a conductive line Lin11and a seventeenth wiring length D17of a conductive line Lin23, the eighth wiring length D8of the conductive line Lin11and the seventeenth wiring length D17of the conductive line Lin23are greater than a second wiring length D2of a conductive line Lin3and a fourteenth wiring length D14of a conductive line Lin19, the second wiring length D2of the conductive line Lin3and the fourteenth wiring length D14of the conductive line Lin19are greater than a fifth wiring length D5of a conductive line Lin7and an eleventh wiring length D11of a conductive line Lin15, the fifth wiring length D5of the conductive line Lin7and the eleventh wiring length D11of the conductive line Lin15are greater than a twelfth wiring length D12of a conductive line Lin16and an eighteenth wiring length D18of a conductive line Lin24, the twelfth wiring length D12of the conductive line Lin16and the eighteenth wiring length D18of the conductive line Lin24are greater than a sixth wiring length D6of a conductive line Lin8and a fifteenth wiring length D15of a conductive line Lin20, and the sixth wiring length D6of the conductive line Lin8and the fifteenth wiring length D15of the conductive line Lin20are greater than a third wiring length D3of a conductive line Lin4and a ninth wiring length D9of a conductive line Lin12.

Therefore, it may be summarized according to the embodiments ofFIG. 3BandFIG. 3Cthat, configuration locations of switch units in each switching unit21are the same. As shown inFIG. 3B, each switching unit includes one switch unit configured in the first row (the first switch unit T1, the fourth switch unit T4, the seventh switch unit T7, the tenth switch unit T10, the thirteenth switch unit T13, or the sixteenth switch unit T16) and two switch units configured in the second row (the second switch unit and the third switch unit, the fifth switch unit and the sixth switch unit, the eighth switch unit and the ninth switch unit, the eleventh switch unit and the twelfth switch unit, the fourteenth switch unit and the fifteenth switch unit, or the seventeenth switch unit and the eighteenth switch unit). InFIG. 3C, each switching unit21includes one switch unit configured in the first row (the first switch unit T1, the fourth switch unit T4, the seventh switch unit T7, the tenth switch unit T10, the thirteenth switch unit T13, or the sixteenth switch unit T16), one switch unit configured in the second row (the second switch unit T2, the fifth switch unit T5, the eighth switch unit T8, the eleventh switch unit T11, the fourteenth switch unit T14, or the seventeenth switch unit T17), and one switch unit configured in the third row (the third switch unit T3, the sixth switch unit T6, the ninth switch unit T9, the twelfth switch unit T12, the fifteenth switch unit T15, or the eighteenth switch unit T18).

Moreover, some of switch units configured at a same configuration location in different switching units21receive different control signals CS. As shown inFIG. 3BandFIG. 3C, for those configured at a same configuration location in different switching units21, the first switch unit T1and the fourth switch unit T4receive the same first control signal CS, the seventh switch unit T7and the tenth switch unit T10receive the same second control signal CS2, the thirteenth switch unit T13and the sixteenth switch unit T16receive the same third control signal CS, the first switch unit T1as well as the fourth switch unit T4, and the seventh switch unit T7, the tenth switch unit T10, the thirteenth switch unit T13as well as the sixteenth switch unit T16receive different control signals CS, the seventh switch unit T7as well as the tenth switch unit T10, and the first switch unit T1, the fourth switch unit T4, the thirteenth switch unit T13as well as the sixteenth switch unit T16receive different control signals CS, and the thirteenth switch unit T13as well as the sixteenth switch unit T16, and the first switch unit T1, the fourth switch unit T4, the seventh switch unit T7as well as the tenth switch unit T10receive different control signals CS.

For those configured at a same configuration location in different switching units21, the second switch unit T2and the seventeenth switch unit T17receive the same second control signal CS2, the fifth switch unit T5and the eleventh switch unit T11receive the same third control signal CS3, the eighth switch unit T8and the fourteenth switch unit T14receive the same first control signal CS1, the second switch unit T2as well as the seventeenth switch unit T17, and the fifth switch unit T5, the eleventh switch unit T11, the eighth switch unit T8as well as the fourteenth switch unit T14receive different control signals CS, the fifth switch unit T5as well as the eleventh switch unit T11, and the second switch unit T2, the seventeenth switch unit T17, the eighth switch unit T8as well as the fourteenth switch unit T14receive different control signals CS, and the eighth switch unit T8as well as the fourteenth switch unit T14, and the second switch unit T2, the seventeenth switch unit, the fifth switch unit T5as well as the eleventh switch unit T11receive different control signals CS.

For those configured at a same configuration location in different switching units21, the third switch unit T3and the ninth switch unit T9receive the same third control signal CS3, the sixth switch unit T6and the fifteenth switch unit T15receive the same second control signal CS2, and the twelfth switch unit T12and the eighteenth switch unit T18receive the same first control signal CS1. The third switch unit T3as well as the ninth switch unit T9, and the sixth switch unit T6, the fifteenth switch unit T15, the twelfth switch unit T12as well as the eighteenth switch unit T18receive different control signals CS, the sixth switch unit T6as well as the fifteenth switch unit T15, and the third switch unit T3, the ninth switch unit T9, the twelfth switch unit T12as well as the eighteenth switch unit T18receive different control signals CS, and the twelfth switch unit T12as well as the eighteenth switch unit T18, and the third switch unit T3, the ninth switch unit T9, the sixth switch unit T6as well as the fifteenth switch unit T15receive different control signals CS.

A quantity of switch units T included in the foregoing switching unit21may be adjusted according to requirements. In some embodiments, each switching unit21includes three switch units T; in some embodiments, each switching unit21may further include six switch units T, and the quantity of the switch units included in the switching unit is not limited in the present invention.

According to the foregoing embodiments, some of switch units configured at a same configuration location in different switching units are electrically coupled to different control signal lines and control signals. Therefore, wiring lengths of switch units receiving a same control signal may be different according to configuration locations of the switch units. Therefore, by means of configuration of switch units of the present invention, a total wiring length of a plurality of switch units may averagely correspond to a plurality of control signals, that is, each control signal corresponds to an approximately equal wiring length. Therefore, the present invention may avoid a case in which a conductive line electrically coupled to a particular control signal line generates a relatively large parasitic capacitance value when a wiring length corresponding to a particular control signal is obviously greater than that of another control signal. By means of this practice, the present invention effectively reduces and balances a parasitic capacitance value generated by a conductive line, and then reduces a noise of a display panel. In application of the display panel having a touch function, the reduction in the noise of the display panel may more effectively improve accuracy of touch sensing.

Although the present disclosure has been described by using the foregoing implementations, is the implementations are not used to limit the present invention. A person skilled in the art can make various modifications and improvements without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the scope defined by the appended claims.