CN114420026A

CN114420026A - Display panel control circuit, display panel and display device

Info

Publication number: CN114420026A
Application number: CN202111638025.0A
Authority: CN
Inventors: 黄顾; 李荣荣
Original assignee: HKC Co Ltd; Changsha HKC Optoelectronics Co Ltd
Current assignee: HKC Co Ltd; Changsha HKC Optoelectronics Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-04-29
Anticipated expiration: 2041-12-29
Also published as: CN114420026B

Abstract

The application provides a display panel control circuit, display panel and display device, display panel control circuit includes first chip circuit, a plurality of second chip circuits and signal repair circuit, signal repair circuit is used for when first chip circuit and second chip circuit establish communication connection, receive the feedback signal of telecommunication that a plurality of second chip circuits sent, and signal repair circuit restores according to the feedback signal of telecommunication, in order to produce the restoration signal of telecommunication, and with restoration signal of telecommunication send to first chip circuit, so that first chip circuit judges the communication state between with the second chip circuit according to the restoration signal of telecommunication. The signal restoration circuit generates a restoration electric signal according to the feedback electric signal, and the first chip circuit judges the communication with the second chip circuit according to the restoration electric signal, so that the attenuation and distortion caused by the long-distance transmission of the feedback electric signal or the transmission of a plurality of electronic components are avoided, and the communication between the first chip circuit and the second chip circuit is prevented from being judged by mistake.

Description

Display panel control circuit, display panel and display device

Technical Field

The present application relates to the field of display technologies, and in particular, to a display panel control circuit, a display panel, and a display device.

Background

Display technology has been one of the important research directions in display devices, and the functions of a display screen in a display device are generally realized by a display panel. In the display panel, when data is transmitted between partial circuits, a Point-To-Point (P2P) protocol is generally used, and one of the characteristics of the P2P protocol is that there is no Clock (Clock) signal, that is, a feedback electrical signal is required for determining whether the communication between the circuits is normal.

Due to the fact that a plurality of circuits exist in the display panel, the feedback electric signal may be distorted due to attenuation caused by transmission distance in the transmission process of the feedback electric signal in the circuits or due to multiple electrical connection relations of electronic components, and the like, so that communication state errors between the circuits judged according to the distorted feedback signal are caused, and further, the phenomena of abnormal pictures displayed by the display panel are caused.

Disclosure of Invention

The application discloses display panel control circuit can solve the technical problem of feedback signal of telecommunication distortion.

In a first aspect, the present application provides a display panel control circuit, which includes a first chip circuit, a plurality of second chip circuits, one end of each of the second chip circuits is connected to a display panel, and a signal repair circuit, and the other end of each of the second chip circuits is connected to the first chip circuit through the signal repair circuit; the signal restoration circuit is used for receiving feedback electric signals sent by the plurality of second chip circuits when the first chip circuit is in communication connection with the second chip circuits, and the signal restoration circuit restores the feedback electric signals to generate restoration electric signals and sends the restoration electric signals to the first chip circuit, so that the first chip circuit judges the communication state between the first chip circuit and the second chip circuits according to the restoration electric signals.

Optionally, the signal repair circuit includes a repair unit and a switch unit, the repair unit includes a first end, a second end, an input end and an output end, the first end is used for receiving a first voltage signal, the second end is used for receiving a second voltage signal, the input end is used for receiving the feedback electric signal, the output end outputs a control electric signal according to the feedback electric signal under the loading of the first voltage signal and the second voltage signal, and the switch unit is used for outputting the repair electric signal under the control of the control electric signal.

Optionally, when the voltage value of the feedback electrical signal is greater than or equal to a preset threshold, the voltage value of the control electrical signal is equal to the voltage value of the first voltage; and when the voltage value of the feedback electric signal is smaller than the preset threshold value, the voltage value of the control electric signal is equal to the voltage value of the second voltage.

Optionally, the switch unit includes a first electrode, a second electrode, and a third electrode, the first electrode is electrically connected to the output end and is configured to receive the control electrical signal, the second electrode is configured to receive a third voltage, the third electrode is configured to receive a ground signal, the third electrode is electrically connected to the first chip circuit, and when the switch unit is turned on under the control of the control electrical signal, the third voltage is output as the repair electrical signal via the third electrode; when the switch unit is turned off under the control of the control electrical signal, the ground signal is sent to the first chip circuit as the repair electrical signal.

Optionally, a voltage value of the first voltage is an on voltage of the switch unit, and a voltage value of the second voltage is an off voltage of the switch unit.

Optionally, the number of the signal repair circuits is multiple, and the number of the signal repair circuits is equal to the number of the second chip circuits, and each of the second chip circuits is electrically connected to the corresponding signal repair circuit, and is configured to send the feedback electrical signal to the corresponding signal repair circuit.

Optionally, the number of the signal repair circuits is multiple, the signal repair circuits are arranged in parallel at intervals, and multiple adjacent second chip circuits are electrically connected to the corresponding signal repair circuit and used for sending the feedback electrical signal to the corresponding signal repair circuit.

In a second aspect, the present application further provides a display panel, the display panel includes an effective display area and an ineffective display area, the ineffective display area is enclosed and located the effective display area, the display panel driving circuit set up in the display panel the ineffective display area is connected, the display panel driving circuit adopts the display panel control circuit as described above.

Optionally, the first chip circuit is a timing control circuit, and the second chip circuit is a data signal driving circuit.

In a third aspect, the present application further provides a display device, which includes a housing and the display panel as described in the second aspect, wherein the housing is used for bearing and mounting the display panel.

In this application, through set up signal repair circuit between first chip circuit and second chip circuit, signal repair circuit basis the feedback signal of telecommunication produces the repair signal of telecommunication, just first chip circuit basis the repair signal of telecommunication judge with communication state between the second chip circuit avoids the feedback signal of telecommunication is at long distance transmission, perhaps because attenuation, the distortion that a plurality of electronic components's transmission caused, thereby prevent first chip circuit misjudgment with the communication state of second chip circuit to guarantee image data's correct transmission, avoid causing phenomena such as splash screen, display screen abnormity, and then promote display panel's display effect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any inventive exercise.

Fig. 1 is a schematic diagram of a display panel control circuit according to an embodiment of the present disclosure.

Fig. 2 is a waveform diagram of the feedback electric signal in an ideal case.

Fig. 3 is a schematic diagram of a possible waveform of the feedback electric signal in a practical situation.

Fig. 4 is a schematic diagram of a signal recovery circuit according to an embodiment of the present disclosure.

Fig. 5 is a partially enlarged schematic view of a display panel according to an embodiment of the present application.

Fig. 6 is a partially enlarged schematic view of a display panel according to another embodiment of the present application.

Fig. 7 is a schematic top view of a display device according to an embodiment of the present disclosure.

The reference numbers illustrate: a feedback electric signal-SFC, a repair electric signal-SFC _ O, a first voltage-VH, a second voltage-VL, a control electric signal-SFC _ H, a third voltage-VDD, a grounding signal-GND, a display panel control circuit-1, a first chip circuit-11, a second chip circuit-12, a signal repair circuit-13, a repair unit-131, a first end-1311, a second end-1312, an input end-1313, an output end-1314, a switch unit-132, a first electrode-1321, a second electrode-1322, a third electrode-1323, a display panel-2, a first circuit board-21, a connecting cable-22, a second circuit board-23, a flexible sub circuit board-231, a display area-24, a non-display area-25, a non-display area, Display device-3, casing-31.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Referring to fig. 1, fig. 1 is a schematic top view of a display panel according to an embodiment of the present disclosure. The display panel control circuit 1 comprises a first chip circuit 11, a plurality of second chip circuits 12 and a signal repair circuit 13, wherein one end of each second chip circuit is connected with the display panel, the display panel control circuit also comprises a signal repair circuit, and the other end of each second chip circuit is connected with the first chip circuit through the signal repair circuit; the signal repairing circuit 13 is configured to receive the feedback electrical signal SFC sent by the plurality of second chip circuits 12 when the first chip circuit 11 establishes a communication connection with the second chip circuits 12, and the signal repairing circuit 13 performs repairing according to the feedback electrical signal SFC to generate a repairing electrical signal SFC _ O, and sends the repairing electrical signal SFC _ O to the first chip circuit 11, so that the first chip circuit 11 determines a communication state with the second chip circuits 12 according to the repairing electrical signal SFC _ O.

In this embodiment, the first chip circuit 11 is taken as a timing control circuit (TCON), and the second chip circuit 12 is taken as a data signal driving circuit (Source), for example, wherein the second chip circuit 12 is configured to generate a data signal according to the image data sent by the first chip circuit 11, and drive the pixel unit of the display panel 2 to operate according to the data signal, so as to implement a function of displaying a picture. It is understood that, in other possible embodiments, the first chip circuit 11 and the second chip circuit 12 may also be other circuits in the display panel 2, which is not limited in this application.

It should be noted that, in the display panel 2 with higher resolution, for example, the display panel 2 with 3840 × 2160 resolution, the size of the image data sent by the first chip circuit 11 may also increase with the resolution of the display panel 2, in this case, the first chip circuit 11 and the second chip circuit 12 usually adopt the P2P protocol for data transmission, and the second chip circuit 12 may directly acquire larger image data faster through the first chip circuit 11. Of course, when the first chip circuit 11 and the second chip circuit 12 perform data transmission by using the P2P protocol, and do not include a Clock signal, the second chip circuit 12 needs to send the feedback electrical signal SFC to the first chip circuit 11 at intervals, so as to determine the communication state between the first chip circuit 11 and the second chip circuit 12, thereby ensuring correct transmission of image data, and avoiding phenomena such as screen flashing and abnormal display.

Specifically, please refer to fig. 2 and fig. 3 together, fig. 2 is a schematic waveform diagram of the feedback electrical signal under an ideal condition; fig. 3 is a schematic diagram of a possible waveform of the feedback electrical signal in a practical situation, wherein a horizontal axis T represents different time instants, and a vertical axis V represents a waveform voltage amplitude corresponding to the waveform. As shown in fig. 2, the feedback electrical signal SFC is a square wave signal in general, and since the feedback electrical signal SFC has loss during transmission of the line, problems such as attenuation and distortion are likely to occur, and a waveform finally transmitted to the first chip circuit 11 may be as shown in fig. 3.

In this embodiment, the signal repairing circuit 13 is disposed at a suitable position between the transmission lines of the first chip circuit 11 and the second chip circuit 12, and the signal repairing circuit 13 performs repairing according to the feedback electrical signal SFC to obtain the repairing electrical signal SFC _ O, where a waveform of the repairing electrical signal SFC _ O is the same as or similar to a waveform of the feedback electrical signal SFC under an ideal condition, so as to solve a technical problem that the feedback electrical signal SFC may have a loss in a transmission process of the line.

It is understood that, in the present embodiment, the signal repair circuit 13 generates the repair electrical signal SFC _ O according to the feedback electrical signal SFC, and the first chip circuit 11 determines the communication state with the second chip circuit 12 according to the repair electrical signal SFC _ O, so as to avoid the feedback electrical signal SFC from being transmitted in a long distance or from being attenuated and distorted due to the transmission of a plurality of electronic components, thereby preventing the first chip circuit 11 from erroneously determining the communication state with the second chip circuit 12.

In one possible implementation, please refer to fig. 4, in which fig. 4 is a schematic diagram of a signal repairing circuit according to an embodiment of the present disclosure. The signal repairing circuit 13 includes a repairing unit 131 and a switch unit 132, the repairing unit 131 includes a first terminal 1311, a second terminal 1312, an input terminal 1313, and an output terminal 1314, the first terminal 1311 is configured to receive a first voltage VH signal, the second terminal 1312 is configured to receive a second voltage VL signal, the input terminal 1313 is configured to receive the feedback electrical signal SFC, the output terminal 1314 outputs a control electrical signal SFC _ H according to the feedback electrical signal SFC under loading of the first voltage VH signal and the second voltage VL signal, and the switch unit 132 is configured to output the repairing electrical signal SFC _ O under control of the control electrical signal SFC _ H.

Specifically, the repair unit 131 may be a level shifter, and the repair unit 131 repairs the feedback electrical signal SFC to the control electrical signal SFC _ H according to a voltage value of the feedback electrical signal SFC, where the control electrical signal SFC _ H is a pulse signal whose high level is a voltage value of the first voltage VH and whose low level is a voltage value of the second voltage VL. The switch unit 132 is configured to restore the repair electrical signal SFC _ O having the same waveform as the feedback electrical signal SFC under the control of the control electrical signal SFC _ H.

It is understood that, in other possible embodiments, the repair unit 131 may also be other types of electronic components, which is not limited in this application.

In a possible embodiment, when the voltage value of the feedback electrical signal SFC is greater than or equal to a preset threshold, the voltage value of the control electrical signal SFC _ H is equal to the voltage value of the first voltage VH; when the voltage value of the feedback electrical signal SFC is smaller than the preset threshold, the voltage value of the control electrical signal SFC _ H is equal to the voltage value of the second voltage VL.

Specifically, the repairing unit 131 has the preset threshold, when the voltage value of the feedback electrical signal SFC is greater than or equal to the preset threshold, the repairing unit 131 determines that the feedback electrical signal SFC is at a high level, at this time, the repairing unit 131 opens a path between the first end 1311 and the output end 1314, closes a path between the second end 1312 and the output end 1314, and outputs the first voltage VH via the output end 1314, so that the waveform amplitude of the control electrical signal SFC _ H is increased to a height equal to the first voltage VH under the action of the first voltage VH.

Similarly, when the voltage value of the feedback electrical signal SFC is smaller than the preset threshold, the repairing unit 131 determines that the feedback electrical signal SFC is at a low level, at this time, the repairing unit 131 opens the path between the second end 1312 and the output end 1314, and closes the path between the first end 1311 and the output end 1314, the second voltage VL is output via the output end 1314, and under the action of the second voltage VL, the waveform amplitude of the control electrical signal SFC _ H is reduced to a height equal to the size of the first voltage VH, so as to generate the control electrical signal SFC _ H to control the switching unit 132. Wherein a voltage value of the first voltage VH is greater than a voltage value of the second voltage VL.

In one possible implementation, referring to fig. 4 again, the switch unit 132 includes a first electrode 1321, a second electrode 1322 and a third electrode 1323, the first electrode 1321 is electrically connected to the output end 1314 for receiving the control electrical signal SFC _ H, the second electrode 1322 is for receiving a third voltage VDD, the third electrode 1323 is for receiving a ground signal GND, the third electrode 1323 is electrically connected to the first chip circuit 11, and when the switch unit 132 is turned on under the control of the control electrical signal SFC _ H, the third voltage VDD is output as the repair electrical signal SFC _ O through the third electrode 1323; when the switch unit 132 is turned off under the control of the control electrical signal SFC _ H, the ground signal GND is sent to the first chip circuit 11 as the repair electrical signal SFC _ O.

Specifically, the switch unit 132 may be a transistor, and the third electrode 1323 further receives the ground signal GND through a current limiting resistor. When the switching unit 132 is turned on, the third voltage VDD is output as the repair electrical signal SFC _ O via the third electrode 1323, and the magnitude of the waveform output by the repair electrical signal SFC _ O rises to the same height as the voltage value of the third voltage VDD due to the third voltage VDD; when the switch unit 132 is turned off, the ground signal GND is directly output to the first chip circuit 11 as the repair electrical signal SFC _ O, and the amplitude of the waveform output by the repair electrical signal SFC _ O is reduced to the same height as the voltage value of the ground signal GND due to the action of the ground signal GND.

In this embodiment, please refer to fig. 2, a voltage value of the third voltage VDD is equal to a voltage value corresponding to a highest waveform of the feedback electrical signal SFC in fig. 2, and a voltage value of the ground signal GND is equal to a voltage value corresponding to a lowest waveform of the feedback electrical signal SFC in fig. 2, so that the switch unit 132 restores the restoration electrical signal SFC _ O having a same waveform as the feedback electrical signal SFC under the control of the control electrical signal SFC _ H.

It is understood that, in other possible embodiments, the switch unit 132 may also be other types of electronic components, which is not limited in this application.

In one possible embodiment, the voltage value of the first voltage VH is an on voltage of the switching unit 132, and the voltage value of the second voltage VL is an off voltage of the switching unit 132.

Specifically, the switching unit 132 has the on voltage and the off voltage, that is, when the waveform amplitude of the control electrical signal SFC _ H received by the first electrode 1321 is equal to the voltage value of the first voltage VH, the second electrode 1322 and the third electrode 1323 are turned on, so that the third voltage VDD is output via the switching unit 132; when the waveform amplitude of the control electrical signal SFC _ H received by the first electrode 1321 is equal to the voltage value of the second voltage VL, the second electrode 1322 and the third electrode 1323 are cut off, so that the ground signal GND is sent to the first chip circuit 11 as the repair electrical signal SFC _ O.

It can be understood that, in the present embodiment, the output of the control electrical signal SFC _ H is changed by controlling the voltage value of the first voltage VH and the voltage value of the second voltage VL, so as to control the on and off of the switch unit 132, so that the third voltage VDD and the ground signal GND are respectively sent to the first chip circuit 11 as the repair electrical signal SFC _ O, and the restoration of the feedback electrical signal SFC is completed.

In a possible implementation manner, please refer to fig. 5, and fig. 5 is a partially enlarged schematic view of a display panel according to an embodiment of the present disclosure. The number of the signal repair circuits 13 is plural, and the number of the signal repair circuits 13 is equal to the number of the second chip circuits 12, and each of the second chip circuits 12 is electrically connected to the corresponding signal repair circuit 13, and is configured to send the feedback electrical signal SFC to the corresponding signal repair circuit 13.

It is understood that the display panel 2 includes a plurality of the second chip circuits 12, and since the second chip circuits 12 are disposed at different positions in the display panel 2, that is, the second chip circuits 12 transmit the feedback electrical signal SFC to the first chip circuit 11 at different distances, the attenuation and distortion of the feedback electrical signal SFC may also be different.

Specifically, the signal repair circuits 13 with the same number as that of the second chip circuits 12 are arranged, so that each signal repair circuit 13 generates the corresponding repair electrical signal SFC _ O according to the corresponding feedback electrical signal SFC sent by the second chip circuit 12. Compared with the previous embodiment, in the present embodiment, since the transmission distance of the feedback electrical signal SFC is short, the degree of attenuation and distortion of the feedback electrical signal SFC is small or there is no attenuation and distortion, so that the output waveform of the repair electrical signal SFC _ O generated by the signal repair circuit 13 according to the feedback electrical signal SFC is more uniform and closer to the feedback electrical signal SFC in an ideal situation.

It can be understood that, in the present embodiment, by providing the same number of signal repair circuits 13 as the number of the second chip circuits 12, the accuracy of the first chip circuit 11 in determining the communication state between the first chip circuit 11 and the second chip circuit 12 according to the repair electrical signal SFC _ O is further improved.

In one possible implementation, please refer to fig. 6, and fig. 6 is a partially enlarged schematic view of a display panel according to another implementation of the present application. The number of the signal repair circuits 13 is plural, the plural signal repair circuits 13 are arranged in parallel at intervals, and the plural adjacent second chip circuits 12 are electrically connected to the corresponding signal repair circuit 13, and are configured to send the feedback electrical signal SFC to the signal repair circuit 13.

It can be understood that, since the transmission distance of the feedback electrical signal SFC is short, and the attenuation and distortion of the feedback electrical signal SFC are small or do not have attenuation and distortion, in this embodiment, a plurality of adjacent second chip circuits 12 are electrically connected to the corresponding signal repair circuit 13, specifically, a plurality of adjacent second chip circuits 12 are a group and are electrically connected to the signal repair circuit 13 with the relatively shortest transmission distance to the feedback electrical signal SFC, so that the signal repair circuit 13 performs repair according to the feedback electrical signal SFC sent by the plurality of second chip circuits 12 when the attenuation and distortion of the feedback electrical signal SFC are small or do not have attenuation and distortion.

For example, if a group of 2 adjacent second chip circuits 12 is electrically connected to the signal repair circuit 13 with the shortest transmission distance to the feedback electrical signal SFC, the number of the signal repair circuits 13 is one-half of the number of the second chip circuits 12; the 3 adjacent second chip circuits 12 are in a group, and are electrically connected to the signal repair circuit 13 with the shortest transmission distance to the feedback electrical signal SFC, so that the number of the signal repair circuits 13 is one third of the number of the second chip circuits 12, and so on, which is not limited in this application.

It can be understood that the present embodiment is different from the previous embodiment in that the present embodiment reduces the number of the signal repair circuits 13, thereby reducing the device cost to some extent. It is understood that, in other possible embodiments, the signal repair circuit 13 and the second chip circuit 12 may also have other electrical connection relationships and number relationships, which is not limited in this application.

The present application further provides a display panel 2, please refer to fig. 1 again, the display panel 2 includes the signal repairing circuit 13 as described above, the display panel 2 has a display area 24 and a non-display area 25, the non-display area 25 is enclosed in the display area 24, and the display panel control circuit is disposed in the non-display area 25.

Specifically, please refer to the above description for the display panel control circuit, which is not described herein again. The display area 24 is an area of the display panel 2 for displaying images, videos, and the like, and it is understood that the signal restoring circuit 13 is disposed in the non-display area 25 in order to prevent the signal restoring circuit 13 from affecting a display screen.

In this embodiment, the display panel 2 further includes a first circuit board 21, a connection cable 22 and a second circuit board 23, one end of the first circuit board 21 is electrically connected to one end of the second circuit board 23 through the connection cable 22, the first chip circuit 11 is disposed on the first circuit board 21, the second circuit board 23 is further connected to a plurality of flexible sub-circuit boards 251, the second chip circuit 12 is correspondingly disposed on the flexible sub-circuit boards 251, the signal repairing circuit 13 is disposed on the second circuit board 23, and the repairing electrical signal SFC _ O generated by the signal repairing circuit 13 is transmitted to the first chip circuit 11 through the connection cable 22.

It should be noted that, in order to avoid the carrier of the second chip circuit 12 from damaging the display panel 2, the second chip circuit 12 is disposed on the flexible sub-circuit board 251. In this embodiment, the flexible sub-circuit board 251 may be a Chip On Flex (COF); for a reasonable layout of the circuits in the display panel 2, the first circuit board 21 is electrically connected to the second circuit board 23 through the connection Cable 22, wherein the connection Cable 22 may be a Flexible Flat Cable (FFC).

As the resolution of the display panel 2 is larger, the number of pixels on the display panel 2 is larger, and therefore, more second chip circuits 12 are required for driving the pixels on the display panel 2; meanwhile, the volume of the display panel 2 is also increasing, and the feedback electrical signal SFC needs to be finally transmitted to the first chip circuit 11 through the flexible sub-circuit board 251, the second circuit board 23, the connection cable 22 and the first circuit board 21.

It is understood that, in order to reduce the transmission attenuation and distortion of signals, a plurality of second circuit boards 23 are required for carrying a plurality of second chip circuits 12 and electrically connected to one end of the first circuit board 21 through the connection cable 22.

In one possible embodiment, the first chip circuit 11 is a timing control circuit, and the second chip circuit 12 is a data signal driving circuit. Specifically, the working principle of the timing control circuit and the data signal driving circuit refers to the above description, and is not repeated herein.

In this embodiment, the first chip circuit 11 and the second chip circuit 12 perform data transmission by using a P2P protocol, and the first chip circuit 11 determines a communication state between the first chip circuit 11 and the second chip circuit 12 according to the repair electrical signal SFC _ O. It can be understood that, because the signal repairing circuit 13 is disposed at a suitable position between the transmission lines of the first chip circuit 11 and the second chip circuit 12, and the signal repairing circuit 13 performs repairing according to the feedback electrical signal SFC to obtain the repairing electrical signal SFC _ O, the waveform of the repairing electrical signal SFC _ O is the same as or similar to the waveform of the feedback electrical signal SFC under an ideal condition, so as to solve the technical problem that the feedback electrical signal SFC may be lossy during the transmission process of the lines.

Fig. 7 is a schematic top view of a display device 3 according to an embodiment of the present application, and fig. 7 is a schematic top view of the display device. The display device 3 comprises a housing 31 and the display panel 2 as described above, wherein the housing 31 is used for bearing and mounting the display panel 2. Specifically, please refer to the above description for the display panel 2, which is not described herein again.

It should be noted that, in the embodiment of the present invention, the display device 3 may be a mobile phone, a smart phone, a tablet computer, an electronic reader, a wearable portable device, a notebook computer, etc., and may communicate with a data transfer server through the internet, where the data transfer server may be an instant messaging server, a Social Networking Services (SNS) server, etc., and the embodiment of the present invention is not limited thereto.

The principle and the embodiment of the present application are explained herein by applying specific examples, and the above description of the embodiment is only used to help understand the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A display panel control circuit comprises a first chip circuit and a plurality of second chip circuits, wherein one end of each second chip circuit is connected with a display panel; the signal restoration circuit is used for receiving feedback electric signals sent by the plurality of second chip circuits when the first chip circuit is in communication connection with the second chip circuits, and the signal restoration circuit restores the feedback electric signals to generate restoration electric signals and sends the restoration electric signals to the first chip circuit, so that the first chip circuit judges the communication state between the first chip circuit and the second chip circuits according to the restoration electric signals.

2. The display panel control circuit according to claim 1, wherein the signal repair circuit includes a repair unit and a switch unit, the repair unit includes a first terminal, a second terminal, an input terminal and an output terminal, the first terminal is configured to receive a first voltage signal, the second terminal is configured to receive a second voltage signal, the input terminal is configured to receive the feedback electrical signal, the output terminal outputs a control electrical signal according to the feedback electrical signal under the loading of the first voltage signal and the second voltage signal, and the switch unit is configured to output the repair electrical signal under the control of the control electrical signal.

3. The display panel control circuit according to claim 2, wherein the voltage value of the control electrical signal is equal to the voltage value of the first voltage when the voltage value of the feedback electrical signal is greater than or equal to a preset threshold; and when the voltage value of the feedback electric signal is smaller than the preset threshold value, the voltage value of the control electric signal is equal to the voltage value of the second voltage.

4. The control circuit of claim 2, wherein the switch unit comprises a first electrode, a second electrode and a third electrode, the first electrode is electrically connected to the output terminal for receiving the control electrical signal, the second electrode is for receiving a third voltage, the third electrode is for receiving a ground signal, the third electrode is electrically connected to the first chip circuit, and when the switch unit is turned on under the control of the control electrical signal, the third voltage is output as the repair electrical signal via the third electrode; when the switch unit is turned off under the control of the control electrical signal, the ground signal is sent to the first chip circuit as the repair electrical signal.

5. The display panel control circuit according to claim 4, wherein a voltage value of the first voltage is an on voltage of the switching unit, and a voltage value of the second voltage is an off voltage of the switching unit.

6. The display panel control circuit according to claim 1, wherein the number of the signal repair circuits is plural, and the number of the signal repair circuits is equal to the number of the second chip circuits, and each of the second chip circuits is electrically connected to a corresponding signal repair circuit for transmitting the feedback electrical signal to the corresponding signal repair circuit.

7. The display panel control circuit according to claim 1, wherein the number of the signal repair circuits is plural, and the plural signal repair circuits are arranged in parallel at intervals, and plural adjacent second chip circuits are electrically connected to the corresponding signal repair circuits, for sending the feedback electrical signal to the corresponding signal repair circuits.

8. A display panel, the display panel comprising an effective display area and an ineffective display area, the ineffective display area surrounding the effective display area, the display panel driving circuit disposed on the ineffective display area of the display panel for connection, wherein the display panel driving circuit employs the display panel control circuit as claimed in any one of claims 1 to 7.

9. The display panel according to claim 8, wherein the first chip circuit is a timing control circuit, and the second chip circuit is a data signal driving circuit.

10. A display device, characterized in that it comprises a housing for carrying the display panel and a display panel as claimed in claims 8 and 9.