Display module and display apparatus
Patent Information
- Application Number
- PCT/CN2025/080173
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-02-20
- Filing Date
- 2025-03-03
- Publication Date
- 2026-08-27
Smart Images
Figure CN2025080173_27082026_PF_FP_ABST
Abstract
Description
Display module and display device
[0001] This application claims priority to Chinese patent application No. 202510193121.0, filed on February 20, 2025, the entire contents of which are incorporated herein by reference. Technical Field
[0002] This application relates to the field of display technology, and in particular to a display module and display device. Background Technology
[0003] With the development of display technology, users have increasingly higher requirements for the screen ratio of display devices, and narrow bezel design has become a major development trend in display technology. Invention Overview
[0004] Typically, a display module has a display area and a bezel area located on one side of the display area. Fan-out traces connect the bezel area and the display area, and the driver chip connects to the signal lines of the display area via these fan-out traces. Currently, touch and display drivers are integrated into a single driver chip to reduce the number of driver chips and lower production costs. However, this integrated driver chip requires additional touch output pins on top of the display output pins. This not only increases the number of output pins on the driver chip but also increases the number of fan-out traces between the display area and the terminal area in the display module. Consequently, the bezel width of the display module increases, making it impossible to achieve a narrow bezel effect.
[0005] Therefore, it is necessary to provide a display module and display device to improve this deficiency.
[0006] In a first aspect, embodiments of this application provide a display module, which includes a display panel and a driver chip. The display module includes a display area and a bezel area, and the driver chip is disposed in the bezel area. The driver chip includes:
[0007] Driver chip body;
[0008] Multiple output pins are disposed on the outside of the driver chip body, and the output pins are electrically connected to the internal circuitry of the driver chip body;
[0009] Wherein, at least some of the output pins are configured to output a display signal at a first moment and a touch signal at a second moment, wherein the first moment and the second moment are different.
[0010] Secondly, embodiments of this application also provide a display device, including the display module as described above. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments disclosed. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 is a schematic diagram of the structure of the display module provided in an embodiment of this application;
[0013] Figure 2 is a schematic diagram of the structure of the first type of driver chip in the display module provided in the embodiment of this application;
[0014] Figure 3 is a schematic diagram of the structure of the second type of driver chip in the display module provided in the embodiment of this application;
[0015] Figure 4 is a schematic diagram of the structure of the third type of driver chip in the display module provided in the embodiment of this application;
[0016] Figure 5 is a schematic diagram of the structure of the fourth type of driver chip in the display module provided in the embodiments of this application;
[0017] Figure 6 is a schematic diagram of the structure of the fifth type of driver chip in the display module provided in the embodiments of this application;
[0018] Figure 7 is a schematic diagram of the structure of the sixth type of driver chip in the display module provided in the embodiment of this application;
[0019] Figure 8 is a schematic diagram of a first type of output control unit of the driver chip in the display module provided in an embodiment of this application;
[0020] Figure 9 is a first timing diagram of a display module provided in an embodiment of this application;
[0021] Figure 10 is a schematic diagram of a second type of output unit of the driver chip in the display module provided in an embodiment of this application;
[0022] Figure 11 is a second timing diagram of a display module provided for an embodiment of this application;
[0023] Figure 12 is a schematic diagram of a display device provided in an embodiment of this application.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Driver chip; 11. Driver chip body; 111. Output control unit; 1111. First switching device; 1112. Second switching device; 12. Output pin; 121. First sub-output pin; 122. Second sub-output pin; 123. Third sub-output pin; 13. Input pin;
[0026] 2. Display panel; 21. Fan-out cabling; 22. Terminals;
[0027] 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;
[0028] 100, Display module; 200, Housing; 1000, Display device. Embodiments of the present invention
[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0030] In the description of this application, it should be understood that the terms "upper," "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0031] Reference numerals and / or reference letters may be repeated in different embodiments of this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate the relationship between the various implementations and / or settings discussed.
[0032] Embodiments of this application provide a display module and display device that can reduce the number of output pins, thereby achieving a narrow bezel effect.
[0033] To achieve the above objectives, according to a first aspect of this application, a display module is provided, comprising a display panel and a driver chip. The display module includes a display area and a bezel area, and the driver chip is disposed in the bezel area. The driver chip includes:
[0034] Driver chip body;
[0035] Multiple output pins are disposed on the outside of the driver chip body, and the output pins are electrically connected to the internal circuitry of the driver chip body;
[0036] Wherein, at least some of the output pins are configured to output a display signal at a first moment and a touch signal at a second moment, wherein the first moment and the second moment are different.
[0037] Optionally, the driver chip body includes an output control unit, the input terminal of which is connected to the display signal line and the touch signal line, and the output terminal of which is connected to the corresponding output pin;
[0038] The output control unit is used to control the connection between the display signal line and the output pin at the first moment, and to control the connection between the touch signal line and the output pin at the second moment.
[0039] Optionally, the output control unit includes:
[0040] A first switching device, wherein the input terminal of the first switching device is connected to the display signal line, the control terminal of the first switching device is connected to the display control signal line, and the output terminal of the first switching device is connected to the corresponding output pin;
[0041] The second switching device has its input terminal connected to the touch signal line, its control terminal connected to the touch control signal line, and its output terminal connected to the corresponding output pin.
[0042] Optionally, the display control signal line includes a first display control signal line and a second display control signal line, and the first switching device includes a first N-type transistor and a first P-type transistor;
[0043] In this configuration, 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 signal transmitted by the first display control signal line is out of phase with the signal transmitted by the second display control signal line.
[0044] Optionally, the touch control signal line includes a first touch control signal line and a second touch control signal line, and the second switching device includes a second N-type transistor and a second P-type transistor;
[0045] 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 signal transmitted by the first touch control signal line is out of phase with the signal transmitted by the second touch control signal line.
[0046] Optionally, the first switching device includes a first transistor, the source of the first transistor is connected to the display signal line, the drain of the first transistor is connected to the corresponding output pin, and the gate of the first transistor is connected to the display control signal line.
[0047] The second switching device includes a second transistor, the source of which is connected to the touch signal line, the drain of which is connected to the corresponding output pin, and the gate of which is connected to the touch control signal line.
[0048] Optionally, the output pin includes:
[0049] The first sub-output pin is configured to output the display signal at the first moment and the touch signal at the second moment;
[0050] 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.
[0051] Optionally, the first sub-output pin is located on the side of the second sub-output pin near the edge of the driver chip body.
[0052] Optionally, along the long side of the driver chip body, the first sub-output pin and the second sub-output pin are alternately and repeatedly set.
[0053] Optionally, the output pin includes a third sub-output pin, which is configured to stop outputting a signal at the first moment and output the touch signal at the second moment.
[0054] The third sub-output pin is located on the side of the second sub-output pin near the edge of the driver chip body, and the first sub-output pin is located between the second sub-output pin and the third sub-output pin.
[0055] Optionally, any one of the output pins is configured to output the display signal at the first moment and the touch signal at the second moment.
[0056] According to a second aspect of this application, a display device is provided, including the display module as described above.
[0057] In the display module of this application embodiment, by configuring at least some of the output pins of the driver chip to output a display signal at a first moment and 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 traces in the display panel corresponding to the driver chip, thereby reducing the width of the bezel area of the display module and achieving the effect of a narrow bezel.
[0058] An embodiment of this application provides a display module, which includes a display panel and a driver chip. The display module includes a display area and a bezel area. The driver chip is disposed in the bezel area and includes a driver chip body and a plurality of output pins. The output pins are disposed outside the driver chip body and 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, wherein the first moment and the second moment are different.
[0059] In the embodiments of this application, by configuring at least some of the output pins of the driver chip to output a display signal at a first moment and 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 traces in the display panel corresponding to the driver chip, thereby reducing the width of the bezel area of the display module and achieving the effect of a narrow bezel.
[0060] Please refer to Figure 1. Figure 1 is a schematic diagram of the structure of the display module provided in the embodiment of this 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 disposed on one side of the display area AA, and the driver chip 1 is disposed in the border area BA.
[0061] Please refer to Figure 2, which is a schematic diagram of the structure of a first type of driver chip in a display module provided in an embodiment of this application. The driver chip 1 includes a driver chip body 11 and a plurality of output pins 12. The driver chip body 11 is internally provided with circuitry and a logic control unit (not shown in the figure). The output pins 12 are located externally to the driver chip body 11 and are connected to the internal circuitry of 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 a touch signal at a second moment, the first moment and the second moment being different.
[0062] In the embodiments of this application, the first moment is located during the frame display period (i.e., the effective display period). During this period, the driver chip outputs valid image data and drives the display surface to display a complete frame of image. The second moment is located during the vertical blanking period (i.e., the inter-frame interval period). During this period, the driver chip does not output valid image data, but outputs a touch signal and detects touch input to realize the touch function.
[0063] In the embodiments of this application, by configuring at least some of the output pins 12 of the driver chip 1 to output a display signal at a first moment and 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 traces in the display panel corresponding to the driver chip 1, thereby reducing the width of the display panel bezel and achieving the effect of a narrow bezel.
[0064] In some embodiments, a plurality of output pins 12 are arranged side by side at intervals along the long side extension direction X of the driver chip body 11, and at least one row of output pins 12 is provided on the outside of the driver chip body 11.
[0065] In some embodiments, please refer to FIG2, the driver chip body 11 has two rows of output pins 12 on its exterior. The two rows of output pins 12 are spaced apart along the short side extension direction Y of the driver chip body 11, and one row of output pins 12 is staggered with the other row of output pins 12.
[0066] In practical applications, the number of rows of output pins 12 set outside the main body 11 of the driver chip is not limited to two rows in the above embodiment, but can also be three or four rows or more, and there is no limitation here.
[0067] In some embodiments, referring to FIG2, 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 for both display signals and touch signals, while the second sub-output pin 122 is only used as an output pin for display signals, and stops outputting the signal at the second moment. In this way, by multiplexing part of the output pin 12 for display signals as output pins for touch signals, the number of output pins 12 can be reduced. This not only reduces the width of the driver chip 1 along the short side but also reduces the number of fan-out traces in the display panel corresponding to the driver chip 1, thereby reducing the width of the display panel bezel and achieving a narrow bezel effect.
[0068] In some embodiments, the first sub-output pin 121 is disposed on the side of the second sub-output pin 122 near the edge of the driver chip body 11.
[0069] Referring to Figure 1, the driver chip body 11 has two rows of output pins. Each row of output pins includes multiple first sub-output pins 121 and multiple second sub-output pins 122. The multiple second sub-output pins 122 are arranged side-by-side at intervals in the middle area of each row of output pins. The first sub-output pins 121 are located on the side of the second sub-output pins 122 closest to the short edge of the driver chip body 11. In this way, not only can the number of output pins 12 be reduced, but the first sub-output pins 121 and second sub-output pins 122 can also be spaced apart. This facilitates the debugging of the driver chip and reduces the interference between display signals and touch signals.
[0070] In some embodiments, referring to FIG1, the driver chip 1 further includes a plurality of input pins 13, which are arranged side by side at intervals on the outside of the driver chip body 11, and the input pins 13 are electrically connected to the circuit inside the driver chip body 11.
[0071] In some embodiments, please refer to FIG3, which is a schematic diagram of the structure of the second type of driver chip in the display module provided in the embodiment of this application. Its structure is roughly the same as that of the driver chip shown in FIG2, except that: along the long side extension direction of the driver chip body 11, the first sub-output pin 121 and the second sub-output pin 122 are alternately and repeatedly set.
[0072] Please refer to Figure 3. The driver chip body 11 has two rows of output pins. Each row of output pins includes multiple first sub-output pins 121 and multiple 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 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 this driver chip can achieve the effect of narrow bezel.
[0073] In some embodiments, please refer to FIG4, which is a schematic diagram of the structure of a third type of driver chip in a display module provided in the embodiments of this application. Its structure is roughly the same as that of the driver chip shown in FIG2, except that: the driver chip body 11 is provided with at least two rows of output pins, and each row of output pins includes only one of the first sub-output pin and the second sub-output pin.
[0074] Please refer to Figure 4. The driver chip body 11 has two rows of output pins. The first row of output pins is formed by multiple first sub-output pins 121 arranged side by side and spaced apart along the long side extension direction X of the driver chip body 11. The second row of output pins is formed by multiple second sub-output pins 122 arranged side by side and spaced apart 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 this driver chip to achieve a narrow bezel effect.
[0075] In some embodiments, please refer to FIG5, which is a schematic diagram of the structure of a fourth type of driver chip in a display module provided in an embodiment of this 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 pins 121 are configured to output a display signal at a first moment and a touch signal at a second moment. The third sub-output pins 123 are configured to stop outputting signals at a first moment and output touch signals at a second moment. That is, the first sub-output pins 121 are multiplexed as output pins for both display signals and touch signals, while the second sub-output pins 122 are only used as output pins for touch signals. At the second moment, the second sub-output pins 122 output touch signals. In this way, by multiplexing some of the output pins 12 for display signals as output pins for touch signals, the number of output pins 12 can be reduced. This not only reduces the width of the driver chip 1 along the short side but also reduces the number of fan-out traces in the display panel corresponding to the driver chip 1, thereby reducing the width of the display panel bezel and achieving a narrow bezel effect.
[0076] In some embodiments, please refer to FIG5, the third sub-output pin 123 is disposed on the side of the first sub-output pin 121 near the edge of the driver chip body 11.
[0077] Referring to Figure 5, the driver chip body 11 has two rows of output pins. Each row of output pins includes multiple first sub-output pins 121 and multiple third sub-output pins 123. The multiple first sub-output pins 121 are arranged side-by-side at intervals in the middle area of each row of output pins, and the third sub-output pins 123 are located on the side of the first sub-output pins 121 near the edge of 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 this driver chip can achieve a narrow bezel effect.
[0078] 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, or the first sub-output pin 121 and the third sub-output pin 123 can be 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 the effect of narrow bezel.
[0079] In some embodiments, please refer to FIG6, which is a schematic diagram of the structure of a fifth type of driver chip in a display module provided in an embodiment of this application. Its structure is roughly the same as that of the driver chip shown in FIG5, 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. 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 both display signals and touch signals, the number of output pins 12 can be reduced. This not only reduces the width of the driver chip 1 along the short side but also reduces the number of fan-out traces in the display panel corresponding to the driver chip 1, thereby reducing the width of the display panel bezel and achieving a narrow bezel effect.
[0080] In some embodiments, referring to FIG6, the driver chip body 11 is provided with two rows of output pins. Each row of output pins includes multiple first sub-output pins 121, multiple second sub-output pins 122, and multiple third sub-output pins 123. The third sub-output pins 123 are disposed on the side of the second sub-output pins 122 near the edge of the driver chip body 11, and the first sub-output pins 121 are disposed 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 this driver chip can achieve a narrow bezel effect, and the debugging of the driver chip can also be facilitated.
[0081] 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 increased, and the display panel using this driver chip can achieve a narrow bezel effect.
[0082] In some embodiments, any one output pin is configured to output a display signal at a first moment and a touch signal at a second moment. That is, in this embodiment, all output pins are multiplexed as both the output pin for the display signal and the touch pin for the touch signal. This further reduces the number of output pins, thereby further reducing the bezel width of the display panel using the driver chip and achieving a narrow bezel effect.
[0083] Please refer to Figure 7. Figure 7 is a schematic diagram of the structure of the sixth type of driver chip in the display module provided in the embodiment of this application. The driver chip 1 includes a driver chip body 11 and an output pin 12. The output pin 12 includes only a first sub-output pin 121. The first sub-output pin 121 is configured to output a display signal at a first moment and a touch signal at a second moment.
[0084] Please refer to Figure 8, which is a schematic diagram of a first type of output control unit of the driver chip in the display module provided in an embodiment of this application. The driver chip body 11 includes an output control unit 111. The input terminal of the output control unit 111 is connected to the display signal line SL and the touch signal line TPL, and the output terminal of the output control unit 111 is connected to the corresponding output pin 12. The output control unit 111 is used to control the connection between the display signal line SL and the output pin 12 at a first moment, and to control the connection between the touch signal line TPL and the output pin 12 at a second moment.
[0085] In some embodiments, the driver chip body 11 includes a plurality of output control units 111, the output terminal of each output control unit 111 being connected to a corresponding output pin 12, thereby enabling the output pin 12 to output a display signal at a first moment and a touch signal at a second moment.
[0086] In some embodiments, referring to FIG8, the output control unit 111 includes a first switching device 1111 and a second switching device 1112. The input terminal of the first switching device 1111 is connected to the display signal line SL, the control terminal of the first switching device 1111 is connected to the display control signal line, and the output terminal of the first switching device 1111 is connected to the corresponding output pin 12. The first switching device 1111 can respond to the display control signal transmitted by the display control signal line, controlling the line between the display signal line SL and the output pin 12 to be turned on at a first moment, and controlling the line between the display signal line SL and the output pin 12 to be turned off at a second moment.
[0087] The input terminal of the second switching device 1112 is connected to the touch signal line TPL, the control terminal of the second switching device 1112 is connected to the touch control signal line, and the output terminal of the second switching device 1112 is connected to the corresponding output pin 12. The second switching device 1112 can respond to the touch control signal transmitted by the touch control signal line, controlling the line between the touch signal line TPL and the output pin 12 to turn off at the first moment, and controlling the line between the touch signal line TPL and the output pin 12 to turn on at the second moment.
[0088] In some embodiments, please refer to Figures 8 and 9. Figure 9 is a first timing diagram of a display module provided in an embodiment of this application. The display control signal lines include a first display control signal line SCL1 and a second display control signal line SCL2. The first switching 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, and the gate of the first P-type transistor PT1 is connected to the second display control signal line SCL2. 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 out of phase.
[0089] 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 switching 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, and 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, and the gate of the second P-type transistor PT2 is connected to the second touch control signal line TPCL2. The first touch control signal TPC1 transmitted by the first touch control signal line TPCL1 and the second touch control signal TPC2 transmitted by the second touch control signal line TPCL2 are out of phase.
[0090] Please refer to Figures 8 and 9. At the first moment t1, the first display control signal SC1 is at a high potential, controlling the first N-type transistor NT1 to turn on. The second display control signal SC2 is at a low potential, controlling 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 connected at the first moment, so that the output pin 12 outputs a display signal at the first moment. The first touch control signal TPC1 is at a low potential, controlling the second N-type transistor NT2 to turn off. The second touch control signal TPC2 is at a high potential, controlling 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 disconnected at the first moment, and the output pin 12 cannot output a touch signal at the first moment.
[0091] At the second time t2, the first display control signal SC1 is at a low level, controlling the first N-type transistor NT1 to turn off. The second display control signal SC2 is at a high level, controlling the first P-type transistor PT1 to turn off. This disconnects the line between the display signal line SL and the corresponding output pin 12 at the second time, preventing the output pin 12 from outputting a display signal. The first touch control signal TPC1 is at a high level, controlling the second N-type transistor NT2 to turn on. The second touch control signal TPC2 is at a low level, controlling the second P-type transistor PT2 to turn on, thus connecting the line between the touch signal line TPL and the corresponding output pin 12 at the second time, allowing the output pin 12 to output a touch signal at the second time.
[0092] Please refer to Figure 10, which is a schematic diagram of a second type of output unit of the driver chip in the display module provided in an embodiment of this application. The driver chip body 11 includes an output control unit 111. The input terminal of the output control unit 111 is connected to the display signal line SL and the touch signal line TPL, and the output terminal of the output control unit 111 is connected to the corresponding output pin 12. The output control unit 111 is used to control the connection between the display signal line SL and the output pin 12 at a first moment, and to control the connection between the touch signal line TPL and the output pin 12 at a second moment.
[0093] The driver chip body 11 includes multiple output control units 111. Each 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.
[0094] The second switching device 1112 includes a second transistor T2, the source of which is connected to the touch signal line TPL, the drain of which is connected to the corresponding output pin 12, and the gate of which is connected to the touch control signal line TPCL.
[0095] Please refer to Figure 11, which is a second timing diagram of a display module provided in an embodiment of this application. Both the first transistor T1 and the second transistor T2 are N-type transistors. At the first moment t1, the display control signal SC1 is at a high potential, controlling the first transistor T1 to turn on, thus connecting the display signal line SL to the corresponding output pin 12, allowing the output pin 12 to output a display signal at the first moment. The touch control signal TPC is at a low potential, controlling the second transistor T2 to turn off, thus disconnecting the touch signal line TPL to the corresponding output pin 12, preventing the output pin 12 from outputting a touch signal at the first moment.
[0096] At the second moment t2, the display control signal SC is at a low level, and the display control signal SC controls the first transistor T1 to turn off. This turns off the line between the display signal line SL and the corresponding output pin 12 at the second moment, and the output pin 12 cannot output a display signal. The touch control signal TPC is at a high level, and the touch control signal TPC controls the second transistor T2 to turn on, so that the line between the touch signal line TPL and the corresponding output pin 12 is connected at the second moment, and the output pin 12 outputs a touch signal at the second moment.
[0097] 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 can also be P-type transistors. The types of the first transistor T1 and the second transistor T2 can be the same or different.
[0098] In some embodiments, please refer to FIG1, the bezel area BA includes a terminal area, and multiple fan-out traces 21 are provided 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.
[0099] In this embodiment, by configuring at least some of the output pins 12 of the driver chip 1 to output a display signal at a first moment and a touch signal at a second moment different from the first moment, not only can the number of output pins 12 be reduced, but also the number of fan-out traces 21 in the display panel can be reduced, thereby reducing the width of the bezel area BA of the display module and achieving the effect of a narrow bezel.
[0100] In some embodiments, the terminal area is provided with a plurality of terminals 22, some of which are used to connect to the output pin 12 and the input pin 13 of the driver chip 1, and other terminals 22 are used to connect to a flexible circuit board or a printed circuit board.
[0101] In this embodiment, by configuring at least some of the output pins 12 of the driver chip 1 to output a display signal at a first moment and a touch signal at a second moment different from the first moment, not only can the number of output pins 12 be reduced, but also the number of fan-out traces 21 and terminals 22 in the display panel can be reduced, thereby reducing the width of the bezel of the display panel 2 and achieving the effect of a narrow bezel.
[0102] In some embodiments, the display panel 2 can 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.
[0103] Based on the display module provided in the above embodiments of this application, embodiments of this application also provide a display device. Please refer to FIG12, which is a schematic diagram of the display device provided in an embodiment of this application. The display device 1000 includes a display module 100 and a housing 200, with the display module 100 disposed on the housing 200. The display module 100 can be any of the display modules provided in the above embodiments. The display device provided in the embodiments of this application can achieve the same technical effects as the display modules provided in any of the above embodiments, and will not be elaborated upon here.
[0104] The beneficial effects of the embodiments of this application are as follows: The embodiments of this application provide a display module and a display device. The display module includes a display panel and a driver chip. The display module includes a display area and a bezel area. The driver chip is disposed in the bezel area. The driver chip includes a driver chip body and a plurality of output pins. The output pins are disposed outside the driver chip body and are electrically connected to the circuit inside the driver chip body. By configuring at least some 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, the number of output pins can be reduced, thereby reducing the number of fan-out traces in the display panel corresponding to the driver chip. This reduces the width of the bezel area of the display module and achieves the effect of a narrow bezel.
[0105] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0106] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0107] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.
[0108] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.
Claims
1. A display module, comprising a display panel and a driver chip, the display module including a display area and a bezel area, the driver chip being disposed in the bezel area, the driver chip comprising: Driver chip body; Multiple output pins are disposed on the outside of the driver chip body, and the output pins are electrically connected to the internal circuitry of the driver chip body; Wherein, at least some of the output pins are configured to output a display signal at a first moment and a touch signal at a second moment, wherein the first moment and the second moment are different.
2. The display module as described in claim 1, wherein, The driver chip body includes an output control unit, the input terminal of which is connected to the display signal line and the touch signal line, and the output terminal of which is connected to the corresponding output pin. The output control unit is used to control the connection between the display signal line and the output pin at the first moment, and to control the connection between the touch signal line and the output pin at the second moment.
3. The display module as described in claim 2, wherein, The output control unit includes: A first switching device, wherein the input terminal of the first switching device is connected to the display signal line, the control terminal of the first switching device is connected to the display control signal line, and the output terminal of the first switching device is connected to the corresponding output pin; The second switching device has its input terminal connected to the touch signal line, its control terminal connected to the touch control signal line, and its output terminal connected to the corresponding output pin.
4. The display module as described in 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 switching device includes a first N-type transistor and a first P-type transistor; In this configuration, 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 signal transmitted by the first display control signal line is out of phase with the signal transmitted by the second display control signal line.
5. The display module as described in 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 switching device includes a second N-type transistor and a second P-type transistor; 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 signal transmitted by the first touch control signal line is out of phase with the signal transmitted by the second touch control signal line.
6. The display module as described in claim 3, wherein, The first switching device includes a first transistor, the source of the first transistor is connected to the display signal line, the drain of the first transistor is connected to the corresponding output pin, and the gate of the first transistor is connected to the display control signal line. The second switching device includes a second transistor, the source of which is connected to the touch signal line, the drain of which is connected to the corresponding output pin, and the gate of which is connected to the touch control signal line.
7. The display module as described in claim 1, wherein, The output pin includes: The first sub-output pin is configured to output the display signal at the first moment and 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 as described in claim 7, wherein, The first sub-output pin is located on the side of the second sub-output pin near the edge of the driver chip body.
9. The display module as described in claim 7, wherein, Along the long side of the driver chip body, the first sub-output pin and the second sub-output pin are alternately and repeatedly set.
10. The display module as claimed in claim 7, wherein, The output pin includes a third sub-output pin, which is configured to stop outputting a signal at the first moment and output the touch signal at the second moment.
11. The display module as claimed in claim 10, wherein, The third sub-output pin is located on the side of the second sub-output pin near the edge of the driver chip body, and the first sub-output pin is located between the second sub-output pin and the third sub-output pin.
12. The display module as claimed in claim 1, wherein, Any one of the output pins is configured to output the display signal at the first moment and the touch signal at the second moment.
13. A display device comprising a display module, the display module including a display panel and a driver chip, the display module including a display area and a bezel area, the driver chip being disposed in the bezel area, the driver chip comprising: Driver chip body; Multiple output pins are disposed on the outside of the driver chip body, and the output pins are electrically connected to the internal circuitry of the driver chip body; Wherein, at least some of the output pins are configured to output a display signal at a first moment and a touch signal at a second moment, wherein the first moment and the second moment are different.
14. The display device as claimed in claim 13, wherein, The driver chip body includes an output control unit, the input terminal of which is connected to the display signal line and the touch signal line, and the output terminal of which is connected to the corresponding output pin. The output control unit is used to control the connection between the display signal line and the output pin at the first moment, and to control the connection between the touch signal line and the output pin at the second moment.
15. The display device as claimed in claim 14, wherein, The output control unit includes: A first switching device, wherein the input terminal of the first switching device is connected to the display signal line, the control terminal of the first switching device is connected to the display control signal line, and the output terminal of the first switching device is connected to the corresponding output pin; The second switching device has its input terminal connected to the touch signal line, its control terminal connected to the touch control signal line, and its output terminal connected to the corresponding output pin.
16. The display device as claimed in claim 15, wherein, The display control signal line includes a first display control signal line and a second display control signal line, and the first switching device includes a first N-type transistor and a first P-type transistor; In this configuration, 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 signal transmitted by the first display control signal line is out of phase with the signal transmitted by the second display control signal line.
17. The display device as claimed in claim 15, wherein, The touch control signal line includes a first touch control signal line and a second touch control signal line, and the second switching device includes a second N-type transistor and a second P-type transistor; 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 signal transmitted by the first touch control signal line is out of phase with the signal transmitted by the second touch control signal line.
18. The display device as claimed in claim 15, wherein, The first switching device includes a first transistor, the source of the first transistor is connected to the display signal line, the drain of the first transistor is connected to the corresponding output pin, and the gate of the first transistor is connected to the display control signal line. The second switching device includes a second transistor, the source of which is connected to the touch signal line, the drain of which is connected to the corresponding output pin, and the gate of which is connected to the touch control signal line.
19. The display device as claimed in claim 13, wherein, The output pin includes: The first sub-output pin is configured to output the display signal at the first moment and 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.
20. The display device as claimed in claim 19, wherein, The first sub-output pin is located on the side of the second sub-output pin near the edge of the driver chip body.