CN115394267B

CN115394267B - Display system

Info

Publication number: CN115394267B
Application number: CN202211167541.4A
Authority: CN
Inventors: 任虎男; 林荣镇; 严丞辉
Original assignee: Beijing Xianxin Technology Co ltd
Current assignee: Beijing Xianxin Technology Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-07-14
Anticipated expiration: 2042-09-23
Also published as: CN115394267A

Abstract

The utility model provides a display system, be applied to the display field, in the display system, the time schedule controller is connected with each display driver respectively, each display driver is connected with LCD display screen, each display driver is connected with backlight circuit through first connection structure, after receiving display data and control signal, time schedule controller generates and transmits backlight luminance signal and control data to each display driver according to control signal and display data, each display driver generates LED drive control signal according to backlight luminance signal and control data, the function of partial chip in traditional display system has been replaced, thereby the quantity of the device that adopts in the display system is reduced, reduce display system circuit structure circuit layout complexity and development cost, in addition, the display driver is connected with backlight circuit through first connection structure, increase its flexibility of being connected with backlight circuit, so that it selects different connected mode according to different application scene, thereby increase the flexibility of system development.

Description

Display system

Technical Field

The present application relates to the field of display, and in particular, to a display system.

Background

The display system is a system composed of a liquid crystal display panel, a backlight circuit and a display driving system, wherein the liquid crystal display panel and the backlight circuit can display corresponding images or videos under the driving of the display driving system.

In the prior art, the display driving system comprises a traditional time sequence control board, a light emitting diode (Light Emitting Diode, abbreviated as LED) controller, a time sequence controller and a display driver, wherein the backlight circuit comprises an LED driver, when the display driving system drives the liquid crystal display panel and the backlight circuit to display the obtained information, the main controller is required to transmit an LED driving control signal to the LED driver through the LED controller so that the LED driver drives LEDs in the backlight circuit to emit light according to backlight brightness signals, and the main controller is required to drive the liquid crystal display panel through the display driver, so that the circuit structure and the circuit layout corresponding to the display system are complex.

In addition, when the main controller is connected with the LED controller, a corresponding serial peripheral interface (Serial Peripheral Interface, abbreviated as SPI) needs to be set, when the control method of the backlight circuit is changed, the LED controller needs to adjust the LED driving control signal transmitted to the backlight circuit, and correspondingly, the backlight brightness signal transmitted to the LED driver by the main controller and used for generating the LED driving control signal also needs to be correspondingly adjusted, and for the above situations, the main controller usually needs to adjust the SPI interface for outputting the backlight brightness signal, which results in inflexible development and high cost of the display system.

Disclosure of Invention

The application provides a display system for solving the technical problems that the circuit layout of a circuit structure corresponding to the display system is complex, the display system is inflexible to develop and the cost is high.

In a first aspect, the present application provides a display system comprising: the display device comprises a time sequence controller, a plurality of display drivers, an LCD display screen and a backlight circuit, wherein a first connecting structure is arranged on the backlight circuit, the time sequence controller is respectively connected with each display driver, each display driver is connected with the LCD display screen, and each display driver is connected with the backlight circuit through the first connecting structure;

the time sequence controller generates backlight brightness signals and control data according to the control signals and the display data after receiving the display data and the control signals;

the timing controller transmits the backlight brightness signal and the control data to each of the display drivers;

and each display driver generates an LED driving control signal according to the backlight brightness signal and the control data, and transmits the LED driving control signal to the backlight circuit through the first connection structure.

In the technical scheme, the display system does not need the main controller to generate and transmit the backlight brightness signal through the SPI interface according to the display data, and integrates the function into the first timing controller, so that the circuit structure related to the SPI interface in the main controller is not required to be adjusted in the development process of the display system, and secondly, the first display driver integrates the local backlight controller to generate the LED driving control signal according to the backlight brightness signal into the first display driver, so that the number of devices adopted in the display system is reduced, the circuit connection relation is simplified, the circuit layout complexity and the development cost of the circuit structure of the display system are reduced, and in addition, the display driver can be connected with the backlight circuit through the first connection structure, the flexibility of connection with the backlight circuit is improved, so that different connection modes are selected according to different application scenes, and the flexibility of system development is improved.

Optionally, each display driver includes an LCD driving signal output terminal and an LED control signal output terminal, and the backlight circuit includes a plurality of groups of cascaded LED drivers and a plurality of first connection structures;

the LED control signal output end is connected with a corresponding first connecting structure, and the first connecting structure is connected with the input end of a corresponding cascade LED driver;

the number of the LED control signal output ends is the same as the number of the groups of the cascaded LED drivers, and the number of the first connection structures is equal to the number of the groups of the cascaded LED drivers.

Optionally, the display system further includes a timing control board, and a plurality of second connection structures are disposed on the timing control board;

the LED control signal output end is connected with the corresponding second connection structure, and each second connection structure is connected with the corresponding first connection structure through a flat cable or a serial transmission flexible circuit board;

the number of the second connection structures is equal to the number of the first connection structures.

Optionally, when the display driver includes a plurality of the LED control signal outputs, one LED control signal output of the display driver is connected to one of the second connection structures.

Optionally, a plurality of third connection structures are arranged on the LCD display screen, the LED control signal output end is connected with the corresponding third connection structure, and each third connection structure is connected with the corresponding first connection structure through a flexible circuit board of serial transmission.

Optionally, the display system further comprises a timing control board and a plurality of flexible display drive boards; the LCD display screen comprises a plurality of first connection areas;

the time schedule controller is connected with the time schedule control board, and each flexible display drive board is connected with one display driver; the time schedule controller is connected with each flexible display driving board, and each flexible display driving board is connected with the corresponding first connection area;

each display driver transmits the LCD driving signals generated by the display driver to the LCD display screen through the corresponding first connection area.

Optionally, the display system further comprises a timing control board and a plurality of flexible display drive boards; a plurality of second connection areas are arranged on the LCD display screen;

the time schedule controller is connected with the time schedule control board, the time schedule control board is connected with each flexible display driving board, each flexible display driving board is connected with a corresponding display driver, and each display driver is connected with a corresponding second connection area;

and each display driver transmits the LCD driving signal generated by the display driver to the LCD display screen through the corresponding second connection area.

In the technical scheme, the position and the type of the first connection point or the third connection point are arranged in the display system to adjust the integration level of the control board and the chip in the circuit structure, so that the diversity of application scenes applicable to the display system is increased, meanwhile, compared with the circuit structure of the traditional display system, the circuit structure corresponding to the display system not only reduces the independent circuit boards and the chips, but also reduces the number of the flat cables in the circuit, thereby reducing the complexity of the circuit layout of the circuit structure of the display system, and in addition, the replacement operation of the existing circuit boards and chips in the circuit structure does not occur, so that the configuration cost of the circuit is reduced.

In a second aspect, the present application provides a display system comprising: the display device comprises a time sequence controller, a plurality of display drivers, an LCD display screen and a backlight circuit, wherein a first connecting structure is arranged on the backlight circuit, the time sequence controller is respectively connected with each display driver, each display driver is connected with the LCD display screen, and each display driver is connected with the backlight circuit through the first connecting structure;

the time schedule controller transmits the display data and the control signals to each display driver after receiving the display data and the control signals;

the display driver generates an LED driving control signal according to the control signal and the display data, and transmits the LED driving control signal to the backlight circuit through the first connection structure.

the LED control signal output end is connected with a corresponding first connecting structure, and the first connecting structure is connected with the input end of a corresponding cascade LED driver; the number of the LED control signal output ends is the same as the number of the groups of the cascaded LED drivers, and the number of the first connection structures is equal to the number of the groups of the cascaded LED drivers.

Optionally, the display system further comprises a timing control board;

the timing control board is provided with a plurality of second connection structures, and the backlight circuit is provided with a plurality of first connection structures; the LED control signal output end is connected with the corresponding second connection structure, and each second connection structure is connected with the corresponding first connection structure through a flat cable or a serial transmission flexible circuit board; the number of the second connection structures is equal to the number of the first connection structures, and the number of the first connection structures is equal to the number of groups of the cascaded LED drivers;

or alternatively

The LCD display screen is provided with a plurality of third connection structures, the LED control signal output end is connected with the corresponding third connection structures, and each third connection structure is connected with the corresponding first connection structure through a serial transmission flexible circuit board.

In the technical scheme, the display system integrates the function of generating the backlight brightness signal by the main controller and the function of generating the LED driving control signal by the local backlight controller in the traditional display system into the display driver, so that the display system can still normally operate after the related control panel, controller and SPI interface are reduced, the complexity and cost of circuit structure line layout are reduced, in addition, the display system is connected with the first connection structure through the second connection structure or the third connection structure, the flexibility of circuit connection is improved, the diversity of application scenes of the display system is enlarged, and the development flexibility of the display system is promoted.

The application provides a display system, the display system includes: the display system comprises a time sequence controller, a plurality of display drivers, an LCD display screen and a backlight circuit, wherein a first connecting structure is arranged on the backlight circuit, the time sequence controller is respectively connected with the display drivers, the display drivers are connected with the LCD display screen through the first connecting structure, the display drivers are connected with the backlight circuit through the first connecting structure, the time sequence controller generates backlight brightness signals and control data according to the control signals and the display data after receiving display data and control signals, so that the time sequence controller integrates the function of generating the backlight brightness signals by the master controller, the time sequence controller transmits the backlight brightness signals and the control data to the display drivers, and the display drivers generate LED driving control signals according to the backlight brightness signals and the control data, so that the functions of a local backlight controller in the traditional display system are replaced, the number of devices adopted in the display system is reduced, the circuit connection relation is simplified, the circuit layout complexity and the development cost of the circuit structure of the display system are reduced, and in addition, the display drivers are connected with the backlight circuit through the first connecting structure, the connection mode is increased, and the flexibility of the display drivers and the different connection modes are selected according to different application scenes, and the development flexibility of the system is increased.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a schematic diagram of an exemplary conventional display system provided herein;

FIG. 2 is a schematic diagram of a display system according to an exemplary embodiment of the present application;

fig. 3 is a schematic structural diagram of a display system according to another exemplary embodiment provided in the present application;

FIG. 4A is a diagram of a connection relationship between display drivers of multiple LED control signal output terminals according to an exemplary embodiment of the present application;

FIG. 4B is a diagram of a connection relationship between display drivers of multiple LED control signal output terminals according to an exemplary embodiment of the present application;

fig. 5 is a schematic structural diagram of a display system according to another exemplary embodiment provided in the present application;

fig. 6 is a schematic structural diagram of a display system according to another exemplary embodiment provided in the present application;

fig. 7 is a schematic structural diagram of a display system according to another exemplary embodiment provided in the present application;

specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

Reference numerals:

10: a master controller; 11: a conventional timing control board; 111: a conventional timing controller; 12: a backlight circuit control board; 121: a local backlight controller; 13: a conventional flexible display driving board; 131: a conventional display driver; 14: an LCD display screen; 15: a backlight circuit; 151: an LED driver; 152: an LED;16: a second connection structure; 17: a first connection structure; 18: a third connection structure; 19: a first flexible display driving board; 191: a first display driver; 20: a first timing control board; 201: a first timing controller; 21: a second timing control board; 211: a second timing controller; 22: a second flexible display driving board; 221: and a second display driver.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

The circuit structure of the conventional display system is shown in fig. 1, and the display driving system includes a main controller 10, a conventional timing control board 11, a conventional timing controller 111, a backlight circuit control board 12, a partial backlight controller 121, a plurality of conventional flexible display driving boards 13, a plurality of conventional display drivers 131, an LCD display screen 14, and a backlight circuit 15, wherein the backlight circuit 15 includes a plurality of cascaded LED drivers 151 and a plurality of LEDs 152. The conventional timing controller 111 is connected to the conventional timing control board 11, the partial backlight controller 121 is connected to the backlight circuit control board 12, and the conventional display driver 131 is connected to the conventional flexible display driving board 13.

The circuit connection relation of the conventional display system is as follows: the main controller 10 is connected to a conventional timing controller 111, the conventional timing controller 111 is connected to each conventional display driver 131, and each conventional display driver 131 is connected to a corresponding LCD driving signal input terminal of the LCD display 14. The master controller 10 is also connected to the local backlight controller 121 through an SPI interface, the local backlight controller 121 is connected to the corresponding cascade LED drivers 151 through respective LED control signal output terminals, and each LED driver is connected to the LEDs 152 around it.

In the working process of the conventional display system, the main controller 10 obtains display data and control data, and the main controller 10 generates a corresponding backlight brightness signal according to the display data. In one aspect, the master controller 10 transmits a backlight brightness signal to the local backlight controller 121 through the SPI interface, the local backlight controller 121 generates a corresponding LED driving control signal according to the backlight brightness signal, and transmits the LED driving control signal to a corresponding cascaded LED driver 151, each group of cascaded LED drivers 151 receives a group of LED driving control signals, and sequentially receives corresponding LED driving control sub-signals according to a cascading sequence, and each LED driver 151 generates a corresponding LED driving signal according to the obtained LED driving control sub-signals, so as to drive LEDs 152 around the LED driver 151 to emit light. On the other hand, the main controller 10 transmits the display data and the control data to the conventional timing controller 111, the conventional timing controller 111 converts the display data into a point-to-point differential signal which can be processed by each conventional display driver 131 according to the control signal, and transmits the point-to-point differential signal to the corresponding conventional display driver 131, and the conventional display driver 131 generates a corresponding LCD driving signal according to the obtained signal and transmits the LCD driving signal to the LCD display 14, so that the corresponding area on the LCD display 14 images the display data. In one embodiment, the point-to-point differential signal may be transmitted over an ISP interface, a CHPI interface, a USIT interface, or a CEDS interface.

In the above-mentioned conventional display system, since the LCD display screen 14 and the backlight circuit 15 are controlled by different chips, the number of chips of the entire conventional display system is large, the circuit connection relationship is complex, and the configuration cost is also high. In addition, when a worker develops the control method of the backlight circuit, the LED driving control signal needs to be adjusted, and the backlight brightness signal which is transmitted to the LED driver by the main controller and used for generating the LED driving control signal correspondingly adjusts, so that the worker needs to adjust the SPI interface of the main control board, and the development of the display driving system is inflexible and has high cost.

Aiming at the technical problems, the application provides a display system, which aims to solve the technical problems that the circuit layout of a circuit structure corresponding to the display system is complex, the display system is inflexible to develop and the cost is high. The technical conception of the application is as follows: the function of generating the backlight brightness signal is integrated in the time sequence controller, the function of generating the LED driving control signal according to the backlight brightness signal is integrated in the display driver, so that after the time sequence controller obtains the display data and the control signal, the corresponding backlight brightness signal is generated according to the display data, the backlight brightness signal and the display data are transmitted to each display driver, each display driver generates the corresponding LED driving control signal according to the backlight brightness signal, and the LED driving control signal is transmitted to the corresponding first connecting structure on the backlight circuit, so that the backlight circuit emits light according to the LED driving control signal.

Two display systems provided in this application are explained below.

Fig. 2 is a schematic structural diagram of a display system according to an exemplary embodiment of the present application, where the display system includes a first timing controller 201, a plurality of first display drivers 191, an LCD display screen 14, and a backlight circuit 15, and the backlight circuit 15 is provided with a plurality of first connection structures 17, the first timing controller 201 is respectively connected to each first display driver 191, each first display driver 191 is connected to the LCD display screen 14, and each first display driver 191 is connected to the backlight circuit 15 through the first connection structures 17.

The first timing controller 201 generates a backlight luminance signal and control data according to the control signal and the display data after receiving the display data and the control signal transmitted from the main controller, the first timing controller 201 transmits the backlight luminance signal and the control data to each first display driver 191, each first display driver 191 generates an LED driving control signal according to the backlight luminance signal and the control data, and transmits the LED driving control signal to the backlight circuit 15 through the first connection structure 17 to control the LED driver 151 in the backlight circuit 15 to drive the corresponding LED 152 to emit light.

In addition, the first display driver 191 drives the LCD display 14 to display in the same manner as in the conventional display system, and the description thereof will be omitted. When the first timing controller 201 transmits data to each first display driver 191, in an embodiment, the first timing controller 201 generates display driving control data that can be processed by each first display driver 191 according to the backlight brightness signal, the first timing controller 201 transmits the backlight brightness signal, the control data and the display driving control data to each first display driver 191, after each first display driver 191 splits the data in the data packet, configures the manner in which the first display driver 191 generates the corresponding LED driving control signal according to the backlight brightness signal by using the obtained control data, and converts the backlight brightness signal according to the manner, and the generated LED driving control signal is used for controlling the LED driver to drive the LED to emit light; each first display driver 191 also processes the display driving control data in the data packet to generate a corresponding LCD driving signal for driving the LCD display 14 to display an image.

In another embodiment, after the first timing controller 201 generates the display driving control data that can be processed by each first display driver 191 according to the backlight brightness signal, the first timing controller 201 generates a data packet from the backlight brightness signal and the display driving control data, and transmits the data packet to each first display driver 191, and the first timing controller 201 transmits the control data to each first display driver by using another connection line. In comparison with the data processing procedure of the first display driver 191, the first display driver 191 is not required to parse the control data from the data packet, and the remaining processing procedure is the same as the above procedure and will not be repeated here.

More specifically, the display system further includes a first timing control board 20 and a plurality of first flexible display driving boards 19, and the first display driver 191 includes an LCD driving signal output terminal and an LED control signal output terminal, and the backlight circuit 15 includes a plurality of first connection structures 17, a plurality of sets of cascaded LED drivers 151, and a plurality of LEDs 151 connected to each LED driver 151. The LED control signal output ends of the first display driver 191 are connected with the corresponding first connection structures 17, the first connection structures 17 are connected with the input ends of the corresponding cascade LED drivers, the number of the LED control signal output ends is the same as the number of the groups of the cascade LED drivers, and the number of the first connection structures is equal to the number of the groups of the cascade LED drivers.

In an embodiment, the first display driver 191 may be connected with the first connection structure 17 through the second connection structure 16. More specifically, as shown in fig. 2, the first timing control board 20 is provided with a plurality of second connection structures 16, the LED control signal output ends of the first display driver 191 are connected with the corresponding second connection structures 16 through connection lines on the first flexible display driving board 19 and connection lines on the first timing control board 20, each second connection structure 16 is connected with the corresponding first connection structure 17 through a flat cable (Wire) or a serial transmission flexible circuit board (FPC), so as to realize connection of the LED control signal output ends of the first display driver 191 with the corresponding first connection structure 17, wherein the number of the second connection structures 16 is equal to the number of the first connection structures 17, and the types of the second connection structures 16 and the first connection structures 17 are the same, i.e. when the second connection structures 16 are connected with the corresponding first connection structures 17 through flat cables (wires), the second connection structures 16 and the first connection structures 17 are connection points (connectors); when the second connection structure 16 is connected to the corresponding first connection structure 17 through a serial transmission flexible circuit board (FPC), the second connection structure 16 and the first connection structure 17 are both FPC bonded.

In another embodiment, the first display driver 191 may be connected with the first connection structure 17 through the third connection structure 18. More specifically, as shown in fig. 3, a plurality of third connection structures 18 are disposed on the LCD display screen 14, and the LED control signal output ends of the first display driver 191 are connected to the corresponding third connection structures 18 through connection lines on the first flexible display driving board 19 and connection lines on the LCD display screen 14, and each third connection structure 18 is connected to the corresponding first connection structure 17 on the backlight circuit 15 through a flexible circuit board that transmits in series. The type of the third connection structure 18 and the connection manner thereof with the first connection structure 17 are the same as those of the second connection structure, and will not be described herein.

When the first display driver 191 includes a plurality of LED control signal outputs, one LED control signal output of the first display driver 191 is connected to one of the second connection structure 16 or the third connection structure 18. For example: when one first display driver 191 controls two groups of cascaded LED drivers to drive the LEDs 152 to emit light, the first display driver 191 includes two LED control signal output ends, the two LED control signal output ends are respectively connected with two second connection structures 16, the two second connection structures 16 are respectively connected with two corresponding first connection structures 17 in the backlight circuit 15, and each first connection structure 17 is connected with one group of cascaded LED drivers 151.

The positional relationship between the two second connection structures 16 and the first display driver 191 is shown in fig. 4A and 4B. The second connection structures 16 shown in fig. 4A are all located at one side of the first display driver 191, and the second connection structures 16 shown in fig. 4B are distributed at two sides of the first display driver 191, so as to adapt to different wiring scenarios. It should be noted that, in fig. 4A and fig. 4B, the number of the second connection structures 16 is determined by the number of the LED control signal output ends of the corresponding first display driver 191, and the positional relationship of the second connection structures 16 on the first timing control board 20 is determined by the circuit arrangement state of the display system, and fig. 4A and fig. 4B are only one embodiment.

In the circuit connection relationship shown in fig. 2 to 4B, the first display driver 191 is connected to the LCD display 14 through a corresponding first connection area on the LCD display 14, the LCD display 14 includes a plurality of first connection areas, the first timing control board 20 is connected to each of the first flexible display driving boards 19, and each of the first flexible display driving boards 19 is connected to the corresponding first connection area. Each first flexible display driving board 19 is connected to one first display driver 191, and each first display driver 191 transmits the generated LCD driving signal to the corresponding LCD driving signal input end of the LCD display screen 14 through the corresponding first connection area. In one embodiment, the first connection area is a Chip On Film (COF) connection area, and the first display driver 191 is connected to the LCD display 14 in a COF package.

The first display drivers 191 may also be connected through corresponding second connection areas on the LCD display 14, where a plurality of second connection areas are provided on the LCD display 14, and the first timing control board 20 is connected to each of the first flexible display driving boards 19, where each of the first flexible display driving boards 19 is connected to a corresponding first display driver 191, and each of the first display drivers 191 is connected to a corresponding second connection area on the LCD display 14, so that each of the first display drivers 191 transmits LCD driving signals generated by each of the first display drivers 191 to the LCD display 14 through the corresponding second connection area. In one embodiment, the second connection area is a Chip On Glass (COG) connection area, and the first display driver 191 is connected to the LCD display 14 in COG packaging.

When the first display driver is connected to the LCD display 14 by COG packaging, the structure of the display system and other connection relationships of the components described in fig. 2 to 4B are also applicable to display systems employing COG packaging, in addition to the above-described distinctive connection relationships.

More specifically, when the second connection structure 16 is disposed on the first timing control board 20 in the display system, the circuit connection relationship is shown in fig. 5, and the circuit connection relationship is similar to the circuit connection relationship shown in fig. 2, and will not be described herein again; when the third connection structure 18 is disposed on the LCD display 14 in the display system, the circuit connection relationship is shown in fig. 6, and the circuit connection relationship is similar to that shown in fig. 3, which is not described herein again.

The application also proposes another display system, and the circuit connection structure of the display system is shown in fig. 7. The display system shown in fig. 7 is different from the display system shown in fig. 2 in that the chips used in the display system shown in fig. 7 are the second timing controller 211 and the second display driver 221, and in contrast, the circuit boards on which the two chips are located are the second timing control board 21 and the second flexible display driving board 22, respectively. The remaining circuit structure of the display system shown in fig. 7 is the same as the corresponding circuit structure of fig. 2, and will not be described here again.

The second timing controller 211, after receiving the display data and the control signal transmitted from the main controller, transmits the display data and the control signal to each of the second display drivers 221, and the second display drivers 221 generate LED driving control signals according to the control signal and the display data and transmit the LED driving control signals to the backlight circuit 15 through the first connection structure 17. The second timing controller 211 may package the data to be transmitted and transmit the data to the second display driver 221, or may transmit the data to be transmitted separately, which is not limited herein.

The control signal received by the second display driver 221 is used for controlling the working mode of the second display driver 221 for generating the backlight brightness signal according to the display data, and is also used for controlling the working mode of the second display driver 221 for generating the LED driving control signal according to the backlight brightness signal. The second display driver 221 generates a corresponding LED driving control signal according to the display data in the above manner, and controls the corresponding LED driver 151 to drive the corresponding LED 152 to emit light through the first connection structure 17.

More specifically, the second display driver 221 may be connected to the first connection structure 17 through the second connection structure 16, and the connection relationship of the second connection structure 16 on the second timing control board 21 is the same as the connection relationship of the second connection structure 16 on the first timing control board 20 shown in fig. 2; the second display driver 221 may also be connected to the first connection structure 17 through a third connection structure 18, and the connection relationship of the third connection structure 18 to the LCD display 14 is the same as that shown in fig. 3.

In addition, the packaging manner of the second display driver 221 and the LCD display 14 is the same as that of the first display driver 191, and the COG packaging manner or the COF packaging manner can be applied according to the application scenario, which will not be described herein.

The application provides a display device, which comprises any one of the display systems provided by the embodiment.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A display system, comprising: the display device comprises a time sequence controller, a plurality of display drivers, an LCD display screen and a backlight circuit, wherein a first connecting structure is arranged on the backlight circuit, the time sequence controller is respectively connected with each display driver, each display driver is connected with the LCD display screen, and each display driver is connected with the backlight circuit through the first connecting structure;

the display driver integrates the function of generating the LED driving control signals by the local backlight controller according to the backlight brightness signals into the display driver, so that each display driver generates the LED driving control signals according to the backlight brightness signals and the control data, and the LED driving control signals are transmitted to the backlight circuit through the first connection structure.

2. The display system of claim 1, wherein each of the display drivers includes an LCD drive signal output and an LED control signal output, the backlight circuit including a plurality of sets of cascaded LED drivers and a plurality of the first connection structures;

3. The display system of claim 2, further comprising a timing control board having a plurality of second connection structures disposed thereon;

4. A display system according to claim 3, wherein when the display driver comprises a plurality of the LED control signal outputs, one LED control signal output of the display driver is connected to one of the second connection structures.

5. The display system according to claim 2, wherein a plurality of third connection structures are provided on the LCD display screen, the LED control signal output terminal is connected to the corresponding third connection structure, and each third connection structure is connected to the corresponding first connection structure through a serial transmission flexible circuit board.

6. The display system of claim 1, further comprising a timing control board and a plurality of flexible display drive boards; the LCD display screen comprises a plurality of first connection areas;

7. The display system of claim 1, further comprising a timing control board and a plurality of flexible display drive boards; a plurality of second connection areas are arranged on the LCD display screen;

8. A display system, comprising: the display device comprises a time sequence controller, a plurality of display drivers, an LCD display screen and a backlight circuit, wherein a first connecting structure is arranged on the backlight circuit, the time sequence controller is respectively connected with each display driver, each display driver is connected with the LCD display screen, and each display driver is connected with the backlight circuit through the first connecting structure;

the display driver generates a backlight brightness signal according to the display data and the control signal;

the display driver integrates the function of generating an LED driving control signal by the local backlight controller according to the backlight brightness signal into the display driver, so that the display driver generates the LED driving control signal according to the control signal and the display data, and transmits the LED driving control signal to the backlight circuit through the first connection structure.

9. The display system of claim 8, wherein each of the display drivers includes an LCD drive signal output and an LED control signal output, the backlight circuit including a plurality of sets of cascaded LED drivers and a plurality of first connection structures;

10. The display system of claim 9, further comprising a timing control board;

or alternatively