Display device and operating method thereof

Abstract

The invention provides a display device and an operating method thereof. The display device comprises a display panel and a driving circuit. The display panel is provided with at least one original wire used for performing display driving operation. The driving circuit is coupled to the at least one native wire. In the display driving period, the driving circuit conducts display driving operation on the display panel through the at least one original wire. In the heating period, the driving circuit conducts heating operation on the display panel through the at least one original wire.

Description

Technical Field

[0001] The present invention relates to an electronic device, and in particular to a display device and an operating method thereof. Background Art

[0002] The typical operating temperature range of a liquid crystal display (LCD) panel is approximately -20°C to +70°C. At low temperatures (less than -20°C), the liquid crystal rotates very slowly. When the image on the LCD panel begins to change, image retention occurs due to the slow rotation of the liquid crystal. Therefore, heating LCD panels in low-temperature environments is one of the many technical challenges in this field.

[0003] There are three existing LCD panel heating technologies. Method one is external, that is, using additional heating equipment to increase the temperature of the LCD panel. Method two is to plate an additional metal heating layer on the upper layer of the LCD panel, and then use this additional metal heating layer to increase the temperature of the LCD panel. Method three is to use additional metal wires as heating wires in the LCD panel, and then use this additional metal wire to increase the temperature of the LCD panel. The above three methods require additional design or changes to the original process steps, which increases the cost. In addition, when the LCD panel has a touch detection function, Method one and Method two may shield the touch signal. The existing LCD panel heating technology is not conducive to the current touch integrated display panel (LCD in-cell touch panel). Summary of the Invention

[0004] The present invention provides a display device and an operating method thereof for heating a display panel.

[0005] In an embodiment according to the present invention, the display device includes a display panel and a driving circuit. The display panel includes at least one native conductive line for performing a display driving operation. The driving circuit is coupled to the at least one native conductive line. During a display driving period, the driving circuit drives the display panel via the at least one native conductive line. During a heating period, the driving circuit heats the display panel via the at least one native conductive line.

[0006] In an embodiment of the present invention, the above-mentioned operating method includes: during display driving, the driving circuit of the display device performs display driving operation on the display panel through at least one native wire of the display panel; and during heating, the driving circuit performs heating operation on the display panel through the at least one native wire.

[0007] Based on the above, the native conductive wires described in various embodiments of the present invention can be used not only for display driving during the display driving period but also for heating during the heating period. Therefore, the display device can increase the temperature of the display panel without using additional heating equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 FIG. 1 is a schematic diagram of a circuit block of a display device according to an embodiment of the present invention.

[0009] Figure 2 It is a flowchart of an operating method of a display device according to an embodiment of the present invention.

[0010] Figure 3 FIG. 1 is a circuit block diagram of a driving circuit and a display panel according to an embodiment of the present invention.

[0011] Figure 4 FIG. 1 is a schematic diagram of driving waveforms of a gate driver driving a gate line according to an embodiment of the present invention.

[0012] Figure 5 FIG. 1 is a schematic diagram of driving waveforms of a gate driver driving a gate line according to another embodiment of the present invention.

[0013] Figure 6 FIG. 2 is a circuit block diagram of a driving circuit according to another embodiment of the present invention.

[0014] Figure 7 FIG. 2 is a circuit block diagram of a driving circuit according to another embodiment of the present invention.

[0015] Figure 8 FIG. 2 is a circuit block diagram of a driving circuit according to yet another embodiment of the present invention.

[0016] Figure 9 FIG. 1 is a schematic diagram of driving waveforms of a source driver driving a source line according to an embodiment of the present invention.

[0017] Figure 10 FIG. 2 is a circuit block diagram of a driving circuit according to another embodiment of the present invention.

[0018] Description of Reference Numerals

[0019] 100: Display device

[0020] 110: Driving circuit

[0021] 120: Display panel

[0022] 310, 320, 610, 620, 710, 720, 810, 820, 1010, 1020: Gate drivers

[0023] 330, 630, 730, 830, 1030: Source drivers

[0024] 621, 711, 721: Scanning circuit

[0025] 622_1, 622_i: Switching circuit

[0026] 840_1, 840_j, 1040_1, 1040_2, 1040_3, SW1, SW2, SW3, SW4, SW5: switches

[0027] DP: Display driver period

[0028] G1, G2, Gm: gate lines

[0029] NL1: Native wire

[0030] P: Pixel circuit

[0031] S1, S2, S3, S4, Sn: source lines

[0032] S210, S220: Steps

[0033] TP: Touch detection period

[0034] VG1, VG2: voltage levels

[0035] Vporch: Vertical Porch Period

[0036] ΔV: Heating voltage difference DETAILED DESCRIPTION

[0037] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.

[0038] The term "coupled (or connected)" used throughout the specification of this application (including the claims) may refer to any direct or indirect means of connection. For example, if the text describes a first device coupled (or connected) to a second device, it should be interpreted that the first device can be directly connected to the second device, or the first device can be indirectly connected to the second device through other devices or some connection means. The terms "first", "second", etc. mentioned in the entire specification of this application (including the claims) are used to name the components (element) or to distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of components, nor to limit the order of components. In addition, wherever possible, components / members / steps with the same numbers in the drawings and embodiments represent the same or similar parts. Components / members / steps with the same numbers or the same terms in different embodiments can refer to the relevant descriptions of each other.

[0039] Figure 1 is a circuit block diagram of a display device 100 according to an embodiment of the present invention. Figure 1 The display device 100 shown includes a driving circuit 110 and a display panel 120. The present embodiment does not limit the implementation details of the display panel 120. Based on actual design, the display panel 120 may include a liquid crystal display (LCD) panel or other display panels. The display panel 120 has one or more primary wires (e.g., Figure 1 The native conductive lines NL1 are shown. For example, the native conductive lines may include gate lines (also known as scan lines), source lines (also known as data lines), and / or other transmission lines. These native conductive lines are used for display driving operations. In addition, some (or all) of these native conductive lines may also be used for heating operations.

[0040] Figure 2 This is a flow chart of an operating method of a display device according to an embodiment of the present invention. Figure 1 and Figure 2 The driving circuit 110 is coupled to one or more native wires (e.g., native wire NL1) of the display panel 120. During display driving, the driving circuit 110 may perform a display driving operation on the display panel 120 via the native wires (step S210). This embodiment does not limit the implementation details of the display driving operation. Based on actual design, the display driving operation may include a well-known display driving operation or other display driving operations.

[0041] During the heating period, the driving circuit 110 can heat the display panel 120 through the native wire (step S220). For example, the driving circuit 110 can apply different voltages to both ends of the native wire NL1, that is, apply a certain heating voltage difference ΔV to both ends of the native wire NL1, so that a heating current passes through the native wire NL1. Since the native wire NL1 has a parasitic resistance, the heating current can cause the native wire NL1 to heat up. The heating characteristics of the native wire NL1 are shown in the following formula (1). Wherein, Q is the heat generated by the native wire NL1, P is the power consumed by the native wire NL1, T is time, ΔV is the heating voltage difference applied to both ends of the native wire NL1, and R is the parasitic resistance value of the native wire NL1. As can be seen from formula (1), when there is a voltage difference between the two ends of the native wire NL1, the native wire NL1 can generate heat, thereby heating the display panel 120.

[0042] Q = P × T = [(ΔV^2) / R] × T Formula (1)

[0043] In summary, the driving circuit 110 described in this embodiment can use the native wire NL1 to perform display driving operations during the display driving period. This embodiment does not limit the actual implementation of the display driving period. For example, according to the actual design, the display driving period can be a well-known display driving period. In addition, the driving circuit 110 can also use the native wire NL1 to perform heating operations during the heating period. This embodiment does not limit the actual implementation of the heating period. For example, according to the actual design, the heating period can be located outside the display driving period. In some actual design examples, the heating period can be located in the vertical porch period (vertical porch period, a period of non-display operation and touch operation) or the vertical blanking period. Therefore, the display device 100 can automatically increase the temperature of the display panel 120 without using additional heating equipment.

[0044] Figure 3 FIG. 1 is a circuit block diagram of a driving circuit 110 and a display panel 120 according to an embodiment of the present invention. Figure 3 The driving circuit 110 and the display panel 120 can be used as Figure 1 The driving circuit 110 and the display panel 120 are shown as one of many implementation examples. Figure 3 In the embodiment shown, the native conductive lines of the display panel 120 may include a plurality of gate lines (or scan lines, for example Figure 3 The gate lines G1, G2, ..., Gm) and multiple source lines (or data lines, such as Figure 3, Sn). The driving circuit 110 may include a gate driver 310, a gate driver 320, and a source driver 330. The source driver 330 may have a timing controller function. Based on the timing control of the source driver 330, the gate drivers 310 and 320 may jointly perform a scanning operation in a display driving operation on the gate lines G1 to Gm during the display driving period. Based on the scanning timing of the gate drivers 310 and 320, the source driver 330 may perform a grayscale driving operation in a display driving operation on the source lines S1 to Sn during the display driving period to write a grayscale voltage into different pixel circuits P of the display panel 120.

[0045] Figure 4 FIG. 1 is a schematic diagram of driving waveforms of the gate drivers 310 and 320 driving the gate lines G1 -Gm according to an embodiment of the present invention. Figure 4 The horizontal axis represents time. Figure 3 and Figure 4 . Figure 4 The upper part shows the driving waveform of the gate driver 310 driving one end of the gate lines G1 to Gm. Figure 4 The lower portion shows the driving waveforms of the gate driver 320 driving the other ends of the gate lines G1 -Gm.

[0046] The gate driver 310 is coupled to one end (e.g., the first end) of the gate lines G1 to Gm. The gate driver 320 is coupled to the other end (e.g., the second end) of the gate lines G1 to Gm. During the display driving period DP, the gate drivers 310 and 320 can jointly perform a scanning operation on the gate lines G1 to Gm. Figure 4 As shown. Figure 4 In the illustrated embodiment, the heating period may be within the vertical porch period Vporch. During the vertical porch period Vporch (heating period), gate drivers 310 and 320 may jointly apply a heating voltage difference ΔV to both ends of each gate line G1-Gm (native conductor NL1) to heat the display panel 120. During the heating period, the voltage applied by gate drivers 310 and 320 to gate lines G1-Gm to heat the display panel 120 is insufficient to turn on any pixel circuits P coupled to the gate lines G1-Gm.

[0047] For example (but not limited to this), gate driver 310 pulls down the voltage at the first ends of gate lines G1-Gm from voltage level VG1 to voltage level VG2 during the vertical porch period Vporch, while gate driver 320 maintains the voltage at the second ends of gate lines G1-Gm at voltage level VG1 during the vertical porch period Vporch. Therefore, a heating voltage difference ΔV = VG1 - VG2 exists between the two ends of each gate line G1-Gm. Gate drivers 310 and 320 apply a heating voltage difference ΔV between the two ends of each gate line G1-Gm to pass a heating current through the gate lines G1-Gm. Because the gate lines have parasitic resistance, the heating current can cause the gate lines G1-Gm to heat. Therefore, gate drivers 310 and 320 can heat the display panel 120 through the gate lines G1-Gm during the heating period.

[0048] Figure 5 FIG. 1 is a schematic diagram of driving waveforms of the gate drivers 310 and 320 driving the gate lines G1 -Gm according to another embodiment of the present invention. Figure 5 The horizontal axis represents time. Figure 5 In the embodiment shown, the driving circuit 110 also performs a touch detection operation on the display panel 120 through one or more native wires during the touch detection period TP. Figure 3 and Figure 5 The gate driver 310 is coupled to one end (eg, the first end) of the gate lines G1 -Gm. The gate driver 320 is coupled to the other end (eg, the second end) of the gate lines G1 -Gm. Figure 5 The upper portion shows the driving waveform of the gate driver 310 driving the first end of the gate lines G1 to Gm. Figure 5 The lower portion shows the driving waveform of the gate driver 320 driving the second ends of the gate lines G1 to Gm. The gate drivers 310 and 320 can jointly perform a scanning operation on the gate lines G1 to Gm during the display driving period DP, and jointly perform a load-free driving (LFD, i.e., touch detection operation) on the display panel 120 through the gate lines G1 to Gm during the touch detection period TP. Figure 5 shown.

[0049] exist Figure 5 In the illustrated embodiment, the heating period can occur outside the display drive period DP and the touch detection period TP. For example, the heating period can occur during the vertical porch period Vporch or the vertical blank period. During the vertical porch period Vporch (heating period), gate drivers 310 and 320 can jointly apply a heating voltage difference ΔV to both ends of each gate line G1-Gm (native conductor NL1) to heat the display panel 120. Figure 5 The heating operation of Vporch during the vertical porch shown can be referred to Figure 4 The relevant description of the heating operation of Vporch during the vertical porch is shown, so it will not be repeated here.

[0050] Figure 6 FIG. 1 is a circuit block diagram of the driving circuit 110 according to another embodiment of the present invention. Figure 6 The display panel 120 can refer to Figure 3 The relevant description of the display panel 120 is shown, so it is not repeated here. Figure 6 The driving circuit 110 shown can be used as Figure 1 The driving circuit 110 is one of many implementation examples. Figure 6 In the illustrated embodiment, the driving circuit 110 may include a gate driver 610 , a gate driver 620 , and a source driver 630 . Figure 6 The source driver 630 shown can refer to Figure 3 The relevant description of the source driver 330 is shown in FIG. Figure 6 The operation of the gate drivers 610 and 620 during display driving can be referred to Figure 3 The description of gate drivers 310 and 320 is omitted. Based on the timing control of source driver 630, gate drivers 610 and 620 can jointly scan gate lines G1-Gm during the display driving period. Based on the scanning timing of gate drivers 610 and 620, source driver 630 can perform grayscale driving operations on source lines S1-Sn during the display driving period to write grayscale voltages to different pixel circuits P of display panel 120.

[0051] exist Figure 6 In the embodiment shown, the gate driver 620 may include a scanning circuit 621 and switch circuits 622_1 to 622_i. Other switch circuits in the gate driver 620 (such as the switch circuit 622_i) may refer to the description of the switch circuit 622_1 and be deduced by analogy. Figure 6 In the illustrated embodiment, the switch circuit 622_1 includes switches SW1, SW2, and SW3. During the display driving period, switches SW1 and SW2 are turned on while switch SW3 is turned off, so that the gate driver 610 and the scan circuit 621 can jointly scan the gate lines G1 and G2.

[0052] During the heating period, switches SW1 and SW2 are off, while switch SW3 is on. Therefore, gate driver 620 can couple the second end of gate line G1 to the second end of gate line G2. During the heating period, gate driver 610 can apply a heating voltage difference ΔV to the first end of gate line G1 and the first end of gate line G2. During the heating period, the voltage applied by gate driver 610 to gate lines G1 and G2 to heat display panel 120 is insufficient to turn on pixel circuits P coupled to gate lines G1 and G2. For example (but not limited to), during the heating period (e.g., vertical porch period Vporch), gate driver 310 pulls down the voltage at the first end of gate line G1 from voltage level VG1 to voltage level VG2, while maintaining the voltage at the first end of gate line G2 at voltage level VG1. Consequently, a heating current flows through gate lines G1 and G2. Due to parasitic resistance in the gate lines, the heating current can heat gate lines G1 and G2, thereby heating the display panel 120. Similarly, by adding a switching circuit in the gate driver 610 , the switching circuit can connect three or more gate lines during the heating period to heat the display panel 120 .

[0053] Figure 7 FIG. 1 is a circuit block diagram of the driving circuit 110 according to another embodiment of the present invention. Figure 7 The display panel 120 can refer to Figure 3 The relevant description of the display panel 120 is shown, so it is not repeated here. Figure 7 The driving circuit 110 shown can be used as Figure 1 The driving circuit 110 is one of many implementation examples. Figure 7 In the illustrated embodiment, the driving circuit 110 may include a gate driver 710 , a gate driver 720 , and a source driver 730 . Figure 7 The source driver 730 shown can refer to Figure 3 The description of the source driver 330 is omitted here. The following describes the operation of the gate drivers 710 and 720 on the gate lines G1 and G2 using a specific example. The operation of the gate drivers 710 and 720 on the other gate lines of the display panel 120 can refer to the description of the gate lines G1 and G2 and be deduced by analogy.

[0054] The gate driver 710 is coupled to the first end of the gate line G1 and the first end of the gate line G2, and the gate driver 720 is coupled to the second end of the gate line G1 and the second end of the gate line G2. Figure 7In the illustrated embodiment, gate driver 710 includes a scan circuit 711 and a switch SW4, while gate driver 720 includes a scan circuit 721 and a switch SW5. Scan circuit 711 is coupled to a first terminal of gate line G1. A first terminal of switch SW4 receives a voltage level VG1. A second terminal of switch SW4 is coupled to a first terminal of gate line G2. A first terminal of switch SW5 receives a voltage level VG1. A second terminal of switch SW5 is coupled to a second terminal of gate line G1. Scan circuit 721 is coupled to a second terminal of gate line G2.

[0055] During the display driving period, switches SW4 and SW5 are turned off. Based on the timing control of the source driver 730, during the display driving period, the scanning circuit 711 of the gate driver 710 can perform a first scanning operation on the odd-numbered gate lines (e.g., gate line G1) among the gate lines G1-Gm, while the scanning circuit 721 of the gate driver 720 can perform a second scanning operation on the even-numbered gate lines (e.g., gate line G2) among the gate lines G1-Gm. Based on the scanning timing of the scanning circuits 711 and 721, the source driver 730 can perform a grayscale driving operation on the source lines S1-Sn during the display driving period to write grayscale voltages into different pixel circuits P of the display panel 120.

[0056] During a heating period (e.g., the vertical porch period Vporch), switches SW4 and SW5 are turned on, and thus voltage level VG1 is applied to the second end of gate line G1 and the first end of gate line G2. During the heating period, the scan circuit 711 can pull down the voltage at the first end of gate line G1 from voltage level VG1 to voltage level VG2. Therefore, gate drivers 710 and 720 jointly apply a heating voltage difference ΔV to both ends of gate line G1, thereby heating the display panel 120. Furthermore, during the heating period, the scan circuit 721 can pull down the voltage at the second end of gate line G2 from voltage level VG1 to voltage level VG2. Therefore, gate drivers 710 and 720 jointly apply a heating voltage difference ΔV to both ends of gate line G2, thereby heating the display panel 120. During the heating period, the voltages applied to the gate line G1 and the voltages applied to the gate line G2 by the gate drivers 710 and 720 in order to heat the display panel 120 are insufficient to turn on the pixel circuits P coupled to the gate lines G1 and G2 .

[0057] Figure 8 FIG. 1 is a circuit block diagram of the driving circuit 110 according to yet another embodiment of the present invention. Figure 8 The display panel 120 can refer to Figure 3 The relevant description of the display panel 120 is shown, so it is not repeated here. Figure 8 The driving circuit 110 shown can be used as Figure 1The driving circuit 110 is one of many implementation examples. Figure 8 In the embodiment shown, the driving circuit 110 may include a gate driver 810, a gate driver 820, a source driver 830 and a plurality of switches (eg Figure 8 Switches 840_1 to 840_j are shown). Figure 8 The gate driver 810, the gate driver 820 and the source driver 830 can be referred to as the gate driver 810, the gate driver 820 and the source driver 830 for the display driving operation of the display panel 120. Figure 3 The gate drivers 310, 320, and 330 are described in detail and are not further described. Based on the timing control of the source driver 830, the gate drivers 810 and 820 can jointly scan the gate lines G1-Gm during the display driving period. Based on the scanning timing of the gate drivers 810 and 820, the source driver 830 can perform grayscale driving operations on the source lines S1-Sn during the display driving period to write grayscale voltages to different pixel circuits P of the display panel 120.

[0058] Figure 9 FIG. 1 is a driving waveform diagram illustrating a driving operation performed by the source driver 830 on the source lines S1 and S2 according to an embodiment of the present invention. Figure 9 The horizontal axis represents time. Figure 8 and Figure 9 . Other switches in the driving circuit 110 (such as switch 840_j) can refer to the relevant description of switch 840_1 and be analogous, and other source lines of the display panel 120 (such as source line Sn) can refer to the relevant description of source lines S1 and S2 and be analogous. The source driver 830 is coupled to the first end of the source line S1 and the first end of the source line S2. The first end and the second end of the switch 840_1 are coupled to the second end of the source line S1 and the second end of the source line S2, respectively. During the display driving period DP, the switch 840_1 is cut off, so based on the scanning timing of the gate drivers 810 and 820, the source driver 830 can perform grayscale driving operations on the source lines S1 and S2 to write grayscale voltages into different pixel circuits P of the display panel 120.

[0059] exist Figure 9 In the illustrated embodiment, the heating period can be within the vertical porch period Vporch. During the vertical porch period Vporch (heating period), switch 840_1 is turned on to couple the second end of source line S1 to the second end of source line S2. At this point, source driver 830 can apply a heating voltage difference ΔV to the first end of source line S1 and the first end of source line S2 to heat display panel 120.

[0060] For example (but not limited to this), during the vertical porch period Vporch, source driver 830 pulls the voltage at the first end of source line S1 from voltage level VG2 to voltage level VG1. Furthermore, during the vertical porch period Vporch, source driver 830 maintains the voltage at the first end of source line S2 at voltage level VG2. Consequently, source lines S1 and S2 have a heating voltage difference ΔV = VG1 - VG2, causing a heating current to flow through source lines S1 and S2. Because source lines have parasitic resistance, the heating current can heat source lines S1 and S2. Therefore, during the heating period, source driver 830 can heat display panel 120 via source lines S1 and S2 (native line NL1).

[0061] Figure 10 FIG. 1 is a circuit block diagram of the driving circuit 110 according to another embodiment of the present invention. Figure 10 The display panel 120 can refer to Figure 3 The relevant description of the display panel 120 is shown, so it is not repeated here. Figure 10 The driving circuit 110 shown can be used as Figure 1 The driving circuit 110 is one of many implementation examples. Figure 10 In the embodiment shown, the driving circuit 110 may include a gate driver 1010, a gate driver 1020, a source driver 1030, and a plurality of switches (eg Figure 8 Switches 1040_1, 1040_2 and 1040_3 are shown). Figure 10 The gate driver 1010, the gate driver 1020 and the source driver 1030 can be referred to as the gate driver 1010, the gate driver 1020 and the source driver 1030 for the display driving operation of the display panel 120. Figure 3 The gate driver 310, the gate driver 320 and the source driver 330 are described in detail, or refer to Figure 8 The gate drivers 810, 820, and 830 are described in detail, and therefore are not further described. Based on the timing control of the source driver 1030, the gate drivers 1010 and 1020 can jointly scan the gate lines G1-Gm during the display driving period DP. Based on the scanning timing of the gate drivers 1010 and 1020, the source driver 1030 can perform grayscale driving operations on the source lines S1-S4 during the display driving period DP to write grayscale voltages to different pixel circuits P of the display panel 120.

[0062] The source driver 1030 is coupled to the first end of source line S1, the first end of source line S2, the first end of source line S3, and the first end of source line S4. The first and second ends of switch 1040_1 are coupled to the second end of source line S1 and the second end of source line S2, respectively. The first and second ends of switch 1040_2 are coupled to the first end of source line S2 and the first end of source line S3, respectively. The first and second ends of switch 1040_3 are coupled to the second end of source line S3 and the second end of source line S4, respectively. During the display driving period DP, switches 1040_1, 1040_2, and 1040_3 are turned off. At this time, source driver 1030 can perform grayscale driving operations on source lines S1, S2, S3, and S4 to write grayscale voltages to different pixel circuits P of display panel 120.

[0063] During a heating period (e.g., the vertical porch period Vporch), switch 1040_1 is turned on to couple the second end of source line S1 to the second end of source line S2, switch 1040_2 is turned on to couple the first end of source line S2 to the first end of source line S3, and switch 1040_3 is turned on to couple the second end of source line S3 to the second end of source line S4. At this time, source driver 1030 can apply a heating voltage difference ΔV to the first end of source line S1 and the first end of source line S4 to heat display panel 120. Similarly, by adding more switches 1040 to driver circuit 110, switches 1040 can connect five or more source lines during the heating period to heat display panel 120.

[0064] In summary, the native conductor NL1 described in the aforementioned embodiments is used not only for display driving during the display driving period DP but also for heating during the heating period (e.g., during the vertical porch period Vporch). Therefore, the display device 100 can increase the temperature of the display panel 120 without the need for additional heating equipment.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display device, characterized in that: The display device comprises: A display panel having at least one native wire for performing a display driving operation; and A driving circuit is coupled to the at least one native wire, wherein the driving circuit performs the display driving operation on the display panel through the at least one native wire during display driving, and the driving circuit performs a heating operation on the display panel through the at least one native wire during heating.

2. The display device according to claim 1, characterized in that The heating period is outside the display driving period and is located in a vertical porch period or a vertical blank period.

3. The display device according to claim 1, characterized in that The driving circuit also performs a touch detection operation on the display panel through the at least one native wire during a touch detection period.

4. The display device according to claim 3, characterized in that: The heating period is located outside the display driving period and the touch detection period, and is located in a vertical porch period or a vertical blank period.

5. The display device according to claim 1, characterized in that The at least one native conductive line comprises a gate line of the display panel, and the driving circuit comprises: A first gate driver coupled to a first end of the gate line; and A second gate driver is coupled to the second end of the gate line, wherein: During the display driving period, the first gate driver and the second gate driver jointly perform a scanning operation of the display driving operation on the gate line; and During the heating period, the first gate driver and the second gate driver jointly apply a heating voltage difference to both ends of the gate line to perform the heating operation on the display panel, wherein during the heating period, the voltage applied to the gate line by the first gate driver and the second gate driver to heat the display panel is not sufficient to turn on the pixel circuit coupled to the gate line.

6. The display device according to claim 1, characterized in that: The at least one native wire includes a first gate line and a second gate line of the display panel, and the driving circuit includes: A first gate driver coupled to a first end of the first gate line and a first end of the second gate line; and The second gate driver is coupled to the second end of the first gate line and the second end of the second gate line, wherein: During the display driving period, the first gate driver and the second gate driver jointly perform a scanning operation of the display driving operation on the first gate line and the second gate line; and During the heating period, the second gate driver couples the second end of the first gate line to the second end of the second gate line, and the first gate driver applies a heating voltage difference to the first end of the first gate line and the first end of the second gate line to perform the heating operation on the display panel, wherein during the heating period, the voltage applied by the first gate driver to the first gate line and the second gate line in order to heat the display panel is not sufficient to turn on the pixel circuit coupled to the first gate line and the second gate line.

7. The display device according to claim 1, characterized in that The at least one native wire includes a first gate line and a second gate line of the display panel, and the driving circuit includes: A first gate driver coupled to a first end of the first gate line and a first end of the second gate line; and The second gate driver is coupled to the second end of the first gate line and the second end of the second gate line, wherein: During the display driving period, the first gate driver performs a first scanning operation of the display driving operation on the first gate line, and the second gate driver performs a second scanning operation of the display driving operation on the second gate line; and During the heating period, the first gate driver and the second gate driver jointly apply a first heating voltage difference to both ends of the first gate line to perform the heating operation on the display panel, and the first gate driver and the second gate driver jointly apply a second heating voltage difference to both ends of the second gate line to perform the heating operation on the display panel, wherein during the heating period, the voltage applied to the first gate line and the voltage applied to the second gate line by the first gate driver and the second gate driver in order to heat the display panel are not sufficient to turn on the pixel circuit coupled to the first gate line and the pixel circuit coupled to the second gate line.

8. The display device according to claim 1, characterized in that: The at least one native conductive line includes a first source line and a second source line of the display panel, and the driving circuit includes: a source driver coupled to a first end of the first source line and a first end of the second source line; and A switch having a first end and a second end respectively coupled to the second end of the first source line and the second end of the second source line, wherein: During the display driving period, the switch is turned off, and the source driver performs a grayscale driving operation of the display driving operation on the first source line and the second source line; and During the heating period, the switch is turned on to couple the second end of the first source line to the second end of the second source line, and the source driver applies a heating voltage difference to the first end of the first source line and the first end of the second source line to perform the heating operation on the display panel.

9. The display device according to claim 1, characterized in that: The at least one native conductive line includes a first source line, a second source line, a third source line and a fourth source line of the display panel, and the driving circuit includes: a source driver coupled to a first end of the first source line, a first end of the second source line, a first end of the third source line, and a first end of the fourth source line; A first switch having a first end and a second end respectively coupled to the second end of the first source line and the second end of the second source line; A second switch having a first end and a second end respectively coupled to the first end of the second source line and the first end of the third source line; and The third switch has a first end and a second end respectively coupled to the second end of the third source line and the second end of the fourth source line, wherein: During the display driving period, the first switch, the second switch and the third switch are turned off, and the source driver performs a grayscale driving operation of the display driving operation on the first source line, the second source line, the third source line and the fourth source line; and During the heating period, the first switch is turned on to couple the second end of the first source line to the second end of the second source line, the second switch is turned on to couple the first end of the second source line to the first end of the third source line, the third switch is turned on to couple the second end of the third source line to the second end of the fourth source line, and the source driver applies a heating voltage difference to the first end of the first source line and the first end of the fourth source line to perform the heating operation on the display panel.

10. A method for operating a display device, characterized in that: The operation method comprises: The driving circuit of the display device performs a display driving operation on the display panel through at least one native wire of the display panel of the display device during a display driving period; and The driving circuit performs a heating operation on the display panel through the at least one native wire during the heating period.

11. The operating method according to claim 10, characterized in that: The heating period is outside the display driving period and is located in a vertical porch period or a vertical blank period.

12. The operating method according to claim 10, characterized in that: The operation method further includes: The driving circuit performs a touch detection operation on the display panel through the at least one native wire during a touch detection period.

13. The operating method according to claim 12, characterized in that: The heating period is located outside the display driving period and the touch detection period, and is located in a vertical porch period or a vertical blank period.

14. The operating method according to claim 10, characterized in that: The at least one native wire comprises a gate line of the display panel, the driving circuit comprises a first gate driver and a second gate driver, the first gate driver is coupled to a first end of the gate line, the second gate driver is coupled to a second end of the gate line, and the operating method further comprises: During the display driving period, the first gate driver and the second gate driver jointly perform a scanning operation of the display driving operation on the gate lines; and During the heating period, the first gate driver and the second gate driver jointly apply a heating voltage difference to both ends of the gate line to perform the heating operation on the display panel, wherein during the heating period, the voltage applied to the gate line by the first gate driver and the second gate driver to heat the display panel is not sufficient to turn on the pixel circuit coupled to the gate line.

15. The operating method according to claim 10, characterized in that: The at least one native wire includes a first gate line and a second gate line of the display panel, the driving circuit includes a first gate driver and a second gate driver, the first gate driver is coupled to a first end of the first gate line and a first end of the second gate line, the second gate driver is coupled to a second end of the first gate line and a second end of the second gate line, and the operating method further includes: During the display driving period, the first gate driver and the second gate driver jointly perform a scanning operation of the display driving operation on the first gate line and the second gate line; During the heating period, coupling the second end of the first gate line to the second end of the second gate line by the second gate driver; and During the heating period, the first gate driver applies a heating voltage difference to the first end of the first gate line and the first end of the second gate line to perform the heating operation on the display panel, wherein during the heating period, the voltage applied by the first gate driver to the first gate line and the second gate line in order to heat the display panel is not sufficient to turn on the pixel circuit coupled to the first gate line and the second gate line.

16. The operating method according to claim 10, characterized in that: The at least one native wire includes a first gate line and a second gate line of the display panel, the driving circuit includes a first gate driver and a second gate driver, the first gate driver is coupled to a first end of the first gate line and a first end of the second gate line, the second gate driver is coupled to a second end of the first gate line and a second end of the second gate line, and the operating method further includes: During the display driving period, the first gate driver performs a first scanning operation of the display driving operation on the first gate line; During the display driving period, the second gate driver performs a second scanning operation of the display driving operation on the second gate line; During the heating period, the first gate driver and the second gate driver jointly apply a first heating voltage difference to two ends of the first gate line to perform the heating operation on the display panel; and During the heating period, the first gate driver and the second gate driver jointly apply a second heating voltage difference to both ends of the second gate line to perform the heating operation on the display panel. During the heating period, the voltage applied to the first gate line and the voltage applied to the second gate line by the first gate driver and the second gate driver to heat the display panel are insufficient to turn on the pixel circuit coupled to the first gate line and the pixel circuit coupled to the second gate line.

17. The operating method according to claim 10, characterized in that: The at least one native wire includes a first source line and a second source line of the display panel, the driving circuit includes a source driver and a switch, the source driver is coupled to a first end of the first source line and a first end of the second source line, a first end and a second end of the switch are respectively coupled to a second end of the first source line and a second end of the second source line, and the operating method further includes: During the display driving period, turning off the switch; During the display driving period, the source driver performs a grayscale driving operation of the display driving operation on the first source line and the second source line; During the heating period, turning on the switch to couple the second end of the first source line to the second end of the second source line; and During the heating period, the source driver applies a heating voltage difference to the first end of the first source line and the first end of the second source line to perform the heating operation on the display panel.

18. The operating method according to claim 10, characterized in that: The at least one native conductive line includes a first source line, a second source line, a third source line, and a fourth source line of the display panel, the driving circuit includes a source driver, a first switch, a second switch, and a third switch, the source driver is coupled to a first end of the first source line, a first end of the second source line, a first end of the third source line, and a first end of the fourth source line, a first end and a second end of the first switch are respectively coupled to a second end of the first source line and a second end of the second source line, a first end and a second end of the second switch are respectively coupled to the first end of the second source line and the first end of the third source line, a first end and a second end of the third switch are respectively coupled to a second end of the third source line and a second end of the fourth source line, and the operating method further includes: During the display driving period, turning off the first switch, the second switch and the third switch; During the display driving period, the source driver performs a grayscale driving operation of the display driving operation on the first source line, the second source line, the third source line and the fourth source line; During the heating period, turning on the first switch to couple the second end of the first source line to the second end of the second source line; During the heating period, turning on the second switch to couple the first end of the second source line to the first end of the third source line; During the heating period, turning on the third switch to couple the second end of the third source line to the second end of the fourth source line; and During the heating period, the source driver applies a heating voltage difference to the first end of the first source line and the first end of the fourth source line to perform the heating operation on the display panel.

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