Display module and display device

Abstract

The invention provides a display module and a display device.The display module comprises a display panel and a driving chip, the display module comprises a display area and a frame area, the driving chip is arranged in the frame area and comprises a driving chip body and a plurality of output pins, the output pins are arranged outside the driving chip body, and the output pins are arranged in the frame area. The output pins are electrically connected with a circuit in the driving chip main body, and at least part of the output pins are configured to output the display signals at the first moment and output the touch signals at the second moment different from the first moment, so that the number of the output pins can be reduced; therefore, the number of fan-out wires in the display panel corresponding to the driving chip is reduced, the width of a frame of the display panel can be reduced, and the effect of a narrow frame is achieved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display module and a display device. Background Art

[0002] With the development of display technology, users have higher and higher requirements for the screen-to-body ratio of display devices, and narrow bezel design has become a major development trend of display technology.

[0003] Usually, the display module has a display area and a frame area arranged on one side of the display area, and a fan-out line is arranged between the frame area and the display area, and the driver chip is connected to the signal line of the display area through the fan-out line. At present, the touch drive and display drive are integrated into one driver chip to reduce the number of driver chips and reduce production costs. However, the output pins of the driver chip with integrated display drive and touch drive functions need to be additionally provided with touch output pins on the basis of the display output pins, which will not only increase the number of output pins on the driver chip, but also increase the number of fan-out lines between the display area and the terminal area in the display module, resulting in an increase in the frame width of the display module, and the effect of a narrow frame cannot be achieved.

[0004] Therefore, it is necessary to provide a display module and a display device to improve this defect. Summary of the invention

[0005] The embodiments of the present application provide a display module and a display device, which can reduce the number of output pins, thereby achieving a narrow frame effect.

[0006] In order to achieve the above-mentioned object, according to the first aspect of the present application, a display module is provided, comprising a display panel and a driver chip, the display module comprising a display area and a frame area, the driver chip is arranged in the frame area, and the driver chip comprises:

[0007] Driver chip body;

[0008] A plurality of output pins are arranged outside the driver chip body, and the output pins are electrically connected to the circuit inside the driver chip body;

[0009] At least part of the output pins are configured to output a display signal at a first moment and to output a touch signal at a second moment, and the first moment is different from the second moment.

[0010] Optionally, the driving chip body includes an output control unit, the input end of the output control unit is connected to the display signal line and the touch signal line, and the output end of the output control unit is connected to the corresponding output pin;

[0011] The output control unit is used to control the line conduction between the display signal line and the output pin at the first moment, and to control the line conduction between the touch signal line and the output pin at the second moment.

[0012] Optionally, the output control unit includes:

[0013] A first switch device, wherein an input end of the first switch device is connected to the display signal line, a control end of the first switch device is connected to the display control signal line, and an output end of the first switch device is connected to the corresponding output pin;

[0014] A second switch device, wherein an input end of the second switch device is connected to the touch signal line, a control end of the second switch device is connected to the touch control signal line, and an output end of the second switch device is connected to the corresponding output pin.

[0015] Optionally, the display control signal line includes a first display control signal line and a second display control signal line, and the first switch device includes a first N-type transistor and a first P-type transistor;

[0016] Among them, the source of the first N-type transistor and the source of the first P-type transistor are connected to the same display signal line, the drain of the first N-type transistor and the drain of the first P-type transistor are connected to the same output pin, the gate of the first N-type transistor is connected to the first display control signal line, the gate of the first P-type transistor is connected to the second display control signal line, and the phase of the signal transmitted by the first display control signal line is opposite to that of the signal transmitted by the second display control signal line.

[0017] Optionally, the touch control signal line includes a first touch control signal line and a second touch control signal line, and the second switch device includes a second N-type transistor and a second P-type transistor;

[0018] Among them, the source of the second N-type transistor and the source of the second P-type transistor are connected to the same touch signal line, the drain of the second N-type transistor and the drain of the second P-type transistor are connected to the same output pin, the gate of the second N-type transistor is connected to the first touch control signal line, the gate of the second P-type transistor is connected to the second touch control signal line, and the phase of the signal transmitted by the first touch control signal line is opposite to that of the signal transmitted by the second touch control signal line.

[0019] Optionally, the first switch device comprises a first transistor, a source of the first transistor is connected to the display signal line, a drain of the first transistor is connected to the corresponding output pin, and a gate of the first transistor is connected to the display control signal line;

[0020] The second switch device includes a second transistor, a source of the second transistor is connected to the touch signal line, a drain of the second transistor is connected to the corresponding output pin, and a gate of the second transistor is connected to the touch control signal line.

[0021] Optionally, the output pins include:

[0022] A first sub-output pin, configured to output the display signal at the first moment and output the touch signal at the second moment;

[0023] The second sub-output pin is configured to output the display signal at the first moment and stop outputting the signal at the second moment.

[0024] Optionally, the first sub-output pin is arranged on a side of the second sub-output pin close to an edge of the driving chip body.

[0025] Optionally, along the extension direction of the long side of the driving chip body, the first sub-output pins and the second sub-output pins are alternately and repeatedly arranged.

[0026] Optionally, the output pin includes a third sub-output pin, and the third sub-output pin is configured to stop outputting the signal at the first moment and output the touch signal at the second moment.

[0027] The third sub-output pin is arranged on a side of the second sub-output pin close to an edge of the driving chip body, and the first sub-output pin is arranged between the second sub-output pin and the third sub-output pin.

[0028] Optionally, any one of the output pins is configured to output the display signal at the first moment and output the touch signal at the second moment.

[0029] According to a second aspect of the present application, a display device is provided, comprising the display module as described above.

[0030] In the display module of the embodiment of the present application, by configuring at least part of the output pins of the driver chip to output a display signal at a first moment and output a touch signal at a second moment different from the first moment, the number of output pins can be reduced, thereby reducing the number of fan-out routings in the display panel corresponding to the driver chip, thereby reducing the width of the border area of ​​the display module and achieving a narrow border effect.

[0031] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0033] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0034] Figure 1 A schematic diagram of the structure of a display module provided in an embodiment of the present application;

[0035] Figure 2 A schematic diagram of the structure of a first type of driver chip in a display module provided in an embodiment of the present application;

[0036] Figure 3 A schematic diagram of the structure of a second driving chip in a display module provided in an embodiment of the present application;

[0037] Figure 4 A schematic diagram of the structure of a third driver chip in a display module provided in an embodiment of the present application;

[0038] Figure 5 A schematic diagram of the structure of a fourth driver chip in a display module provided in an embodiment of the present application;

[0039] Figure 6 A schematic diagram of the structure of a fifth driver chip in a display module provided in an embodiment of the present application;

[0040] Figure 7 A schematic diagram of the structure of a sixth driver chip in a display module provided in an embodiment of the present application;

[0041] Figure 8 A schematic diagram of a first output control unit of a driver chip in a display module provided in an embodiment of the present application;

[0042] Fig. 9 A first timing diagram in a display module provided in an embodiment of the present application;

[0043] Fig.10 A schematic diagram of a second output unit of a driver chip in a display module provided in an embodiment of the present application;

[0044] Fig.11 A second timing diagram in a display module provided in an embodiment of the present application;

[0045] Fig.12 A schematic diagram of a display device provided in an embodiment of the present application.

[0046] Description of reference numerals:

[0047] 1. driver chip; 11. driver chip body; 111. output control unit; 1111. first switch device; 1112. second switch device; 12. output pin; 121. first sub-output pin; 122. second sub-output pin; 123. third sub-output pin; 13. input pin;

[0048] 2. Display panel; 21. Fan-out wiring; 22. Terminals;

[0049] SL, display signal line; SCL, display control signal line; SCL1, first display control signal line; SLC2, second display control signal line; TPL, touch signal line; TPCL, touch control signal line; TPCL1, first touch control signal line; TPCL2, second touch control signal line; T1, first transistor; T2, second transistor; NT1, first N-type transistor; NT2, second N-type transistor; PT1, first P-type transistor; PT2, second P-type transistor;

[0050] 100. Display module; 200. Housing; 1000. Display device. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0052] An embodiment of the present application provides a display module, which includes a display panel and a driver chip. The display module includes a display area and a frame area. The driver chip is arranged in the frame area. The driver chip includes a driver chip body and a plurality of output pins. The output pins are arranged outside the driver chip body. The output pins are electrically connected to the circuit inside the driver chip body. At least some of the output pins are configured to output a display signal at a first moment and output a touch signal at a second moment. The first moment is different from the second moment.

[0053] In an embodiment of the present application, by configuring at least part of the output pins of the driver chip to output a display signal at a first moment and to output a touch signal at a second moment different from the first moment, the number of output pins can be reduced, thereby reducing the number of fan-out routings in the display panel corresponding to the driver chip, thereby reducing the width of the border area of ​​the display module and achieving a narrow border effect.

[0054] See also Figure 1 , Figure 1 The structural schematic diagram of the display module provided in the embodiment of the present application, the display module 100 includes a driver chip 1 and a display panel 2, the display module 100 also includes a display area AA and a border area BA, the border area BA is arranged on one side of the display area AA, and the driver chip 1 is arranged in the border area BA.

[0055] See also Figure 2 , Figure 2 This is a schematic diagram of the structure of the first driver chip in the display module provided in an embodiment of the present application. The driver chip 1 includes a driver chip body 11 and a plurality of output pins 12. A circuit and a logic control unit (not shown in the figure) are provided inside the driver chip body 11. The output pins 12 are provided outside the driver chip body 11. The output pins 12 are connected to the circuit inside the driver chip body 11. At least some of the output pins 12 are configured to output a display signal at a first moment and output a touch signal at a second moment, and the first moment is different from the second moment.

[0056] In the embodiment of the present application, the first moment is in the frame display period (i.e., the effective display period), during which the driver chip outputs effective image data and drives the display surface to display a complete frame of image. The second moment is in the vertical blanking period (i.e., the inter-frame interval period), during which the driver chip does not output effective image data, but outputs a touch signal and detects touch input to realize the touch function.

[0057] In an embodiment of the present application, by configuring at least part of the output pins 12 of the driver chip 1 to output a display signal at a first moment and output a touch signal at a second moment different from the first moment, the number of output pins 12 can be reduced, thereby reducing the number of fan-out lines in the display panel corresponding to the driver chip 1, thereby reducing the width of the border of the display panel and achieving a narrow border effect.

[0058] In some embodiments, the plurality of output pins 12 are arranged in rows spaced apart from each other along the long side extension direction X of the driver chip body 11 , and at least one row of output pins 12 is disposed outside the driver chip body 11 .

[0059] In some embodiments, see Figure 2Two rows of output pins 12 are arranged outside the driving chip body 11. The two rows of output pins 12 are arranged at intervals along the short side extension direction Y of the driving chip body 11, and one row of output pins 12 is staggered with the other row of output pins 12.

[0060] In practical applications, the number of rows of output pins 12 provided outside the driver chip body 11 is not limited to the two rows in the above embodiment, but may also be three rows or four rows or more, which is not limited here.

[0061] In some embodiments, see Figure 2 , the output pin 12 includes a first sub-output pin 121 and a second sub-output pin 122. The first sub-output pin 121 is configured to output a display signal at a first moment and output the touch signal at a second moment. The second sub-output pin 122 is configured to output a display signal at a first moment and stop outputting the signal at a second moment. That is, the first sub-output pin 121 is multiplexed as an output pin of a touch signal while serving as an output pin of a display signal. The second sub-output pin 122 serves only as an output pin of a display signal. At the second moment, the second sub-output pin 122 stops outputting the signal. In this way, by multiplexing part of the output pins 12 of the display signal as output pins of the touch signal, the number of output pins 12 can be reduced, which can not only reduce the width of the driver chip 1 along the short side direction, but also reduce the number of fan-out traces in the display panel corresponding to the driver chip 1, thereby reducing the width of the border of the display panel and achieving a narrow border effect.

[0062] In some embodiments, the first sub-output pin 121 is disposed on a side of the second sub-output pin 122 close to an edge of the driving chip body 11 .

[0063] See also Figure 1 , two rows of output pins are arranged on the driver chip body 11, each row of output pins includes a plurality of first sub-output pins 121 and a plurality of second sub-output pins 122, a plurality of second sub-output pins 122 are arranged side by side and spaced apart in the middle area of ​​each row of output pins, and the first sub-output pin 121 is arranged on the side of the edge of the second sub-output pin 122 close to the short side of the driver chip body 11. In this way, not only the number of output pins 12 can be reduced, but also the first sub-output pin 121 can be spaced apart from the second sub-output pin 122, which can facilitate the debugging of the driver chip on the one hand, and reduce the interference of the display signal and the touch signal on each other on the other hand.

[0064] In some embodiments, see Figure 1 The driver chip 1 further includes a plurality of input pins 13 , which are arranged side by side and spaced apart outside the driver chip body 11 , and the input pins 13 are electrically connected to the circuit inside the driver chip body 11 .

[0065] In some embodiments, see Figure 3 , Figure 3 A schematic diagram of the structure of a second driver chip in a display module provided in an embodiment of the present application, which has a similar structure to Figure 2 The structures of the driving chips shown are substantially the same, except that: along the extending direction of the long side of the driving chip body 11 , the first sub-output pins 121 and the second sub-output pins 122 are alternately and repeatedly arranged.

[0066] See also Figure 3 Two rows of output pins are arranged on the driver chip body 11, and each row of output pins includes a plurality of first sub-output pins 121 and a plurality of second sub-output pins 122. The first sub-output pins 121 and the second sub-output pins 122 are alternately and repeatedly arranged along the long side extension direction of the driver chip body 11, that is, a second sub-output pin 122 is arranged before two adjacent first sub-output pins 121, and a first sub-output pin 121 is arranged between two adjacent second sub-output pins 122. In this way, the number of output pins 12 can also be reduced, and the display panel using the driver chip can achieve a narrow frame effect.

[0067] In some embodiments, see Figure 4 , Figure 4 A schematic diagram of the structure of a third driver chip in a display module provided in an embodiment of the present application, which has a similar structure to Figure 2 The structures of the driving chips shown are substantially the same, except that at least two rows of output pins are provided on the driving chip body 11 , and each row of output pins includes only one of the first sub-output pins and the second sub-output pins.

[0068] See also Figure 4 Two rows of output pins are arranged on the driver chip body 11. The first row of output pins is formed by a plurality of first sub-output pins 121 arranged side by side and spaced along the long side extension direction X of the driver chip body 11, and the second row of output pins is formed by a plurality of second sub-output pins 122 arranged side by side and spaced along the long side extension direction X of the driver chip body 11. This can also reduce the number of output pins 12 and enable the display panel using the driver chip to achieve a narrow frame effect.

[0069] In some embodiments, see Figure 5 , Figure 5The schematic diagram of the structure of the fourth driver chip in the display module provided in the embodiment of the present application, the driver chip 1 includes a driver chip body 11 and a plurality of output pins 12, the output pins 12 include a plurality of first sub-output pins 121 and a plurality of third sub-output pins 123, the first sub-output pin 121 is configured to output a display signal at a first moment and output a touch signal at a second moment, and the third sub-output pin 123 is configured to stop outputting a signal at a first moment and output a touch signal at a second moment. That is, the first sub-output pin 121 is multiplexed as an output pin of a touch signal while serving as an output pin of a display signal, and the second sub-output pin 122 is only used as an output pin of a touch signal, and at the second moment, the second sub-output pin 122 outputs a touch signal. In this way, by multiplexing part of the output pins 12 of the display signal as the output pins of the touch signal, the number of output pins 12 can be reduced, so that not only the width of the driver chip 1 along the short side direction can be reduced, but also the number of fan-out traces in the display panel corresponding to the driver chip 1 can be reduced, so that the width of the border of the display panel can be reduced, and the effect of a narrow border can be achieved.

[0070] In some embodiments, see Figure 5 The third sub-output pin 123 is disposed on a side of the first sub-output pin 121 close to an edge of the driving chip body 11 .

[0071] See also Figure 5 , two rows of output pins are arranged on the driver chip body 11, each row of output pins includes a plurality of first sub-output pins 121 and a plurality of third sub-output pins 123, a plurality of first sub-output pins 121 are arranged side by side and spaced apart in the middle area of ​​each row of output pins, and the third sub-output pins 123 are arranged on one side of the edge of the first sub-output pins 121 close to the short side of the driver chip body 11. In this way, the number of output pins 12 can be reduced, and the display panel using the driver chip can achieve a narrow frame effect.

[0072] In some other embodiments, the first sub-output pin 121 and the third sub-output pin 123 can be alternately and repeatedly arranged in the same row along the long side extension direction X of the driver chip body 11, and the first sub-output pin 121 and the third sub-output pin 123 can also be respectively arranged in different rows. In this way, the number of output pins 12 can be reduced, and the display panel using the driver chip can achieve a narrow border effect.

[0073] In some embodiments, see Figure 6 , Figure 6 A schematic diagram of the structure of a fifth driver chip in a display module provided in an embodiment of the present application, which has a similar structure to Figure 5The structure of the driver chip shown is roughly the same, except that: the output pin 12 includes a first sub-output pin 121, a second sub-output pin 122 and a third sub-output pin 123, the first sub-output pin 121 is configured to output a display signal at a first moment and output the touch signal at a second moment, the second sub-output pin 122 is configured to output a display signal at a first moment and stop outputting the signal at a second moment, and the third sub-output pin 123 is configured to stop outputting the signal at a first moment and output the touch signal at a second moment. By time-division multiplexing the first sub-output pin 121 as an output pin for a display signal and a touch signal, the number of output pins 12 can be reduced, so that not only the width of the driver chip 1 along the short side direction can be reduced, but also the number of fan-out traces in the display panel corresponding to the driver chip 1 can be reduced, thereby reducing the width of the border of the display panel and achieving a narrow border effect.

[0074] In some embodiments, see Figure 6 , two rows of output pins are arranged on the driver chip body 11, each row of output pins includes a plurality of first sub-output pins 121, a plurality of second sub-output pins 122 and a plurality of third sub-output pins 123, the third sub-output pins 123 are arranged on the side of the second sub-output pins 122 close to the edge of the driver chip body 11, and the first sub-output pins 121 are arranged between the second sub-output pins 122 and the third sub-output pins 123. In this way, the number of output pins 12 can be reduced, and the display module using the driver chip can achieve the effect of narrow frame, and the debugging of the driver chip can also be facilitated.

[0075] In some other embodiments, the first sub-output pin 121, the second sub-output pin 122 and the third sub-output pin 123 may also be alternately and repeatedly arranged in the same row of output pins along the long side extension direction X of the driver chip body 11. In this way, the number of output pins 12 can also be reduced, and the display panel using the driver chip can achieve a narrow frame effect.

[0076] In some embodiments, any output pin is configured to output a display signal at a first moment and to output a touch signal at a second moment. That is, in this embodiment, all output pins are multiplexed as output pins of display signals and touch pins of touch signals, which can further reduce the number of output pins, thereby further reducing the width of the border of the display panel using the driver chip, and achieving a narrow border effect.

[0077] See also Figure 7 , Figure 7A structural schematic diagram of the sixth driver chip in the display module provided in an embodiment of the present application, wherein the driver chip 1 includes a driver chip body 11 and an output pin 12, wherein the output pin 12 includes only a first sub-output pin 121, and the first sub-output pin 121 is configured to output a display signal at a first moment and to output a touch signal at a second moment.

[0078] See also Figure 8 , Figure 8 A schematic diagram of a first output control unit of a driver chip in a display module provided in an embodiment of the present application, wherein the driver chip body 11 includes an output control unit 111, an input end of the output control unit 111 is connected to a display signal line SL and a touch signal line TPL, and an output end of the output control unit 111 is connected to a corresponding output pin 12. The output control unit 111 is used to control the line conduction between the display signal line SL and the output pin 12 at a first moment, and to control the line conduction between the touch signal line TPL and the output pin 12 at a second moment.

[0079] In some embodiments, the driver chip body 11 includes multiple output control units 111, and the output end of each output control unit 111 is connected to a corresponding output pin 12, so that the output pin 12 can output a display signal at a first moment and output a touch signal at a second moment.

[0080] In some embodiments, see Figure 8 The output control unit 111 includes a first switch device 1111 and a second switch device 1112. The input end of the first switch device 1111 is connected to the display signal line SL, the control end of the first switch device 1111 is connected to the display control signal line, and the output end of the first switch device 1111 is connected to the corresponding output pin 12. The first switch device 1111 can respond to the display control signal transmitted by the display control signal line, control the line between the display signal line SL and the output pin 12 to be turned on at a first moment, and control the line between the display signal line SL and the output pin 12 to be turned off at a second moment.

[0081] The input end of the second switch device 1112 is connected to the touch signal line TPL, the control end of the second switch device 1112 is connected to the touch control signal line, and the output end of the second switch device 1112 is connected to the corresponding output pin 12. The second switch device 1112 can respond to the touch control signal transmitted by the touch control signal line, control the line between the touch signal line TPL and the output pin 12 to be turned off at a first moment, and control the line between the touch signal line TPL and the output pin 12 to be turned on at a second moment.

[0082] In some embodiments, see Figure 8 and Fig. 9 , Fig. 9The first timing diagram in the display module provided in the embodiment of the present application, the display control signal line includes a first display control signal line SCL1 and a second display control signal line SCL2, and the first switch device 1111 includes a first N-type transistor NT1 and a first P-type transistor PT1. The source of the first N-type transistor NT1 and the source of the first P-type transistor PT1 are connected to the same display signal line SL, the drain of the first N-type transistor NT1 and the drain of the first P-type transistor PT2 are connected to the same output pin 12, the gate of the first N-type transistor NT1 is connected to the first display control signal line SCL1, the gate of the first P-type transistor PT1 is connected to the second display control signal line SCL2, and the first display control signal SC1 transmitted by the first display control signal line SCL1 and the second display control signal SC2 transmitted by the second display control signal line SCL2 are opposite in phase.

[0083] In some embodiments, the touch control signal line includes a first touch control signal line TPCL1 and a second touch control signal line TPCL2, and the second switch device 1112 includes a second N-type transistor NT2 and a second P-type transistor PT2. The source of the second N-type transistor NT2 and the source of the second P-type transistor PT2 are connected to the same touch signal line TPL, the drain of the second N-type transistor NT2 and the drain of the second P-type transistor PT2 are connected to the same output pin 12, the gate of the second N-type transistor NT2 is connected to the first touch control signal line TPCL1, the gate of the second P-type transistor PT2 is connected to the second touch control signal line TPCL2, and the first touch control signal TPC1 transmitted by the first touch control signal line TPCL and the second touch control signal TPC2 transmitted by the second touch control signal line TPCL2 are opposite in phase.

[0084] See also Figure 8 and Fig. 9 At the first moment t1, the first display control signal SC1 is a high potential, the first display control signal SC1 controls the first N-type transistor NT1 to turn on, the second display control signal SC2 is a low potential, the second display control signal SC2 controls the first P-type transistor PT1 to turn on, so that the line between the display signal line SL and the corresponding output pin 12 is turned on at the first moment, so that the output pin 12 outputs the display signal at the first moment; the first touch control signal TPC1 is a low potential, the first touch control signal TPC1 controls the second N-type transistor NT2 to turn off, the second touch control signal TPC2 is a high potential, the second touch control signal TPC2 controls the second P-type transistor PT2 to turn off, so that the line between the touch signal line TPL and the corresponding output pin 12 is turned off at the first moment, and the output pin 12 cannot output the touch signal at the first moment.

[0085] At the second moment t2, the first display control signal SC1 is at a low potential, the first display control signal SC1 controls the first N-type transistor NT1 to turn off, the second display control signal SC2 is at a high potential, the second display control signal SC2 controls the first P-type transistor PT1 to turn off, so that the line between the display signal line SL and the corresponding output pin 12 can be turned off at the second moment, and the output pin 12 cannot output the display signal; the first touch control signal TPC1 is at a high potential, the first touch control signal TPC1 controls the second N-type transistor NT2 to turn on, the second touch control signal TPC2 is at a low potential, the second touch control signal TPC2 controls the second P-type transistor PT2 to turn on, so that the line between the touch signal line TPL and the corresponding output pin 12 is turned on at the second moment, and the output pin 12 outputs the touch signal at the second moment.

[0086] See also Fig.10 , Fig.10 A schematic diagram of a second output unit of a driver chip in a display module provided in an embodiment of the present application, wherein the driver chip body 11 includes an output control unit 111, an input end of the output control unit 111 is connected to a display signal line SL and a touch signal line TPL, and an output end of the output control unit 111 is connected to a corresponding output pin 12. The output control unit 111 is used to control the line conduction between the display signal line SL and the output pin 12 at a first moment, and to control the line conduction between the touch signal line TPL and the output pin 12 at a second moment.

[0087] The driving chip body 11 includes multiple output control units 111, the output control unit 111 includes a first switching device 1111 and a second switching device 1112, the first switching device 1111 includes a first transistor T1, the source of the first transistor T1 is connected to the display signal line SL, the drain of the first transistor T1 is connected to the corresponding output pin 12, and the gate of the first transistor T1 is connected to the display control signal line SCL.

[0088] The second switch device 1112 includes a second transistor T2 , a source of the second transistor T2 is connected to the touch signal line TPL, a drain of the second transistor T2 is connected to the corresponding output pin 12 , and a gate of the second transistor T2 is connected to the touch control signal line TPCL.

[0089] See also Fig.11 , Fig.11This is the second timing diagram in the display module provided for the embodiment of the present application, in which the first transistor T1 and the second transistor T2 are both N-type transistors. At the first moment t1, the display control signal SC1 is at a high potential, and the display control signal SC controls the first transistor T1 to turn on, so that the line between the display signal line SL and the corresponding output pin 12 is turned on at the first moment, so that the output pin 12 outputs the display signal at the first moment; the touch control signal TPC is at a low potential, and the touch control signal TPC controls the second transistor T2 to turn off, so that the line between the touch signal line TPL and the corresponding output pin 12 is turned off at the first moment, and the output pin 12 cannot output the touch signal at the first moment.

[0090] At the second moment t2, the display control signal SC is at a low potential, and the display control signal SC controls the first transistor T1 to be turned off, so that the line between the display signal line SL and the corresponding output pin 12 can be turned off at the second moment, and the output pin 12 cannot output the display signal; the touch control signal TPC is at a high potential, and the touch control signal TPC controls the second transistor T2 to be turned on, so that the line between the touch signal line TPL and the corresponding output pin 12 is turned on at the second moment, and the output pin 12 outputs the touch signal at the second moment.

[0091] In some other embodiments, the types of the first transistor T1 and the second transistor T2 are not limited to the N-type transistors in the above embodiments, but may also be P-type transistors, and the types of the first transistor T1 and the second transistor T2 may be the same or different.

[0092] In some embodiments, see Figure 1 The frame area BA includes a terminal area, and a plurality of fan-out traces 21 are arranged between the display area AA and the terminal area. One end of the fan-out trace 21 is connected to the corresponding output pin 12, and the other end of the fan-out trace 21 is connected to the display area AA.

[0093] In this embodiment, by configuring at least part of the output pins 12 of the driver chip 1 to output a display signal at a first moment and output a touch signal at a second moment different from the first moment, not only the number of output pins 12 can be reduced, but also the number of fan-out lines 21 in the display panel can be reduced, thereby reducing the width of the border area BA of the display module and achieving a narrow border effect.

[0094] In some embodiments, the terminal area is provided with a plurality of terminals 22 , some of the terminals 22 are used to connect with the output pins 12 and the input pins 13 of the driver chip 1 , and other terminals 22 are used to connect with a flexible circuit board or a printed circuit board.

[0095] In this embodiment, by configuring at least part of the output pins 12 of the driving chip 1 to output a display signal at a first moment and output a touch signal at a second moment different from the first moment, not only the number of output pins 12 can be reduced, but also the number of fan-out lines 21 and terminals 22 in the display panel can be reduced, thereby reducing the width of the border of the display panel 2 and achieving a narrow border effect.

[0096] In some embodiments, the display panel 2 may be any one of an organic light emitting diode display panel, a mini light emitting diode display panel, a micro light emitting diode display panel, and a liquid crystal display panel.

[0097] According to the display module provided in the above embodiment of the present application, the embodiment of the present application also provides a display device, see Fig.12 , Fig.12 The schematic diagram of the display device provided in the embodiment of the present application, the display device 1000 includes a display module 100 and a housing 200, and the display module 100 is arranged on the housing 200. The display module 100 can be the display module provided in any of the above embodiments. The display device provided in the embodiment of the present application can achieve the same technical effect as the display module provided in any of the above embodiments, which will not be described in detail here.

[0098] Beneficial effects of the embodiments of the present application: The embodiments of the present application provide a display module and a display device, wherein the display module includes a display panel and a driver chip, the display module includes a display area and a frame area, the driver chip is arranged in the frame area, the driver chip includes a driver chip body and a plurality of output pins, the output pins are arranged outside the driver chip body, the output pins are electrically connected to the circuit inside the driver chip body, and the number of output pins can be reduced by configuring at least part of the output pins to output a display signal at a first moment and output a touch signal at a second moment different from the first moment, thereby reducing the number of fan-out routings in the display panel corresponding to the driver chip, thereby reducing the width of the frame area of ​​the display module and achieving a narrow frame effect.

[0099] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0100] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0101] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0102] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A display module, characterized in that: The display module includes a display panel and a driving chip. The display module includes a display area and a frame area. The driving chip is arranged in the frame area. The driving chip includes: Driver chip body; A plurality of output pins are arranged outside the driver chip body, and the output pins are electrically connected to the circuit inside the driver chip body; At least part of the output pins are configured to output a display signal at a first moment and to output a touch signal at a second moment, and the first moment is different from the second moment.

2. The display module according to claim 1, wherein: The driving chip body includes an output control unit, the input end of the output control unit is connected to the display signal line and the touch signal line, and the output end of the output control unit is connected to the corresponding output pin; The output control unit is used to control the line conduction between the display signal line and the output pin at the first moment, and to control the line conduction between the touch signal line and the output pin at the second moment.

3. The display module according to claim 2, wherein: The output control unit comprises: A first switch device, wherein an input end of the first switch device is connected to the display signal line, a control end of the first switch device is connected to the display control signal line, and an output end of the first switch device is connected to the corresponding output pin; A second switch device, wherein an input end of the second switch device is connected to the touch signal line, a control end of the second switch device is connected to the touch control signal line, and an output end of the second switch device is connected to the corresponding output pin.

4. The display module according to claim 3, wherein: The display control signal line includes a first display control signal line and a second display control signal line, and the first switch device includes a first N-type transistor and a first P-type transistor; Among them, the source of the first N-type transistor and the source of the first P-type transistor are connected to the same display signal line, the drain of the first N-type transistor and the drain of the first P-type transistor are connected to the same output pin, the gate of the first N-type transistor is connected to the first display control signal line, the gate of the first P-type transistor is connected to the second display control signal line, and the phase of the signal transmitted by the first display control signal line is opposite to that of the signal transmitted by the second display control signal line.

5. The display module according to claim 3, wherein: The touch control signal line includes a first touch control signal line and a second touch control signal line, and the second switch device includes a second N-type transistor and a second P-type transistor; Among them, the source of the second N-type transistor and the source of the second P-type transistor are connected to the same touch signal line, the drain of the second N-type transistor and the drain of the second P-type transistor are connected to the same output pin, the gate of the second N-type transistor is connected to the first touch control signal line, the gate of the second P-type transistor is connected to the second touch control signal line, and the phase of the signal transmitted by the first touch control signal line is opposite to that of the signal transmitted by the second touch control signal line.

6. The display module according to claim 3, characterized in that: The first switch device comprises a first transistor, a source of the first transistor is connected to the display signal line, a drain of the first transistor is connected to the corresponding output pin, and a gate of the first transistor is connected to the display control signal line; The second switch device includes a second transistor, a source of the second transistor is connected to the touch signal line, a drain of the second transistor is connected to the corresponding output pin, and a gate of the second transistor is connected to the touch control signal line.

7. The display module according to claim 1, wherein: The output pins include: A first sub-output pin, configured to output the display signal at the first moment and output the touch signal at the second moment; The second sub-output pin is configured to output the display signal at the first moment and stop outputting the signal at the second moment.

8. The display module according to claim 7, wherein: The first sub-output pin is arranged on a side of the second sub-output pin close to an edge of the driving chip body.

9. The display module according to claim 7, wherein: Along the extending direction of the long side of the driving chip body, the first sub-output pins and the second sub-output pins are alternately and repeatedly arranged.

10. The display module according to claim 7, wherein: The output pin includes a third sub-output pin, and the third sub-output pin is configured to stop outputting the signal at the first moment and output the touch signal at the second moment.

11. The display module according to claim 10, wherein: The third sub-output pin is arranged on a side of the second sub-output pin close to an edge of the driving chip body, and the first sub-output pin is arranged between the second sub-output pin and the third sub-output pin.

12. The display module according to claim 1, wherein: Any one of the output pins is configured to output the display signal at the first moment and output the touch signal at the second moment.

13. A display device, characterized in that: Comprising a display module as described in any one of claims 1 to 12.

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