Display device

Abstract

The utility model provides a display device which comprises a liquid crystal display panel, a backlight plate, a flexible circuit board and a hybrid drive board, a source driver is electrically connected with the liquid crystal display panel through the flexible circuit board, and a backlight driver is electrically connected with the liquid crystal display panel through the flexible circuit board. The source electrode driver provides source electrode driving signals for the liquid crystal display panel through the flexible circuit board, conductive supporting columns and non-conductive supporting columns are arranged between the liquid crystal display panel and the backlight plate, and the conductive supporting columns and the non-conductive supporting columns are used for keeping the optical distance between the liquid crystal display panel and the backlight plate. The backlight controller transmits backlight driving signals to the backlight plate through the flexible circuit board and the conductive supporting columns. As a connector does not need to be independently configured for the backlight plate, jumper wires do not need to be arranged, and the structure of the backlight plate is simplified. The conductive supporting columns are arranged by utilizing the existing optical space, the structure of the original display equipment does not need to be changed, and the structure of the display equipment can be further simplified.

Description

Technical Field

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

[0002] With the development of display technology, a backlight panel is provided in the display device to provide a backlight source. In addition, a backlight driver board needs to be configured for the backlight panel. The backlight driver board needs to be connected to the backlight panel through a flexible circuit board. Since the backlight panel is usually a PCB board, a connector needs to be provided on the backlight panel to connect the backlight driver board and the backlight panel. The wire layout in the connector is relatively concentrated and needs to be dispersed to the backlight panel. This will easily cause wire crossing on the backlight panel. Therefore, a jumper structure needs to be provided on the backlight panel, which will make the overall structure highly complex. In addition, a flexible circuit board is configured for the backlight panel, which requires a lot of wires and has high production costs. Utility Model Content

[0003] The present application provides a display device to solve the problems that existing display devices need to set a connector on the backlight panel, wires on the connector are prone to wire crossing when they need to be distributed to the backlight panel, and the structure of the display device is complex.

[0004] Some embodiments of the present application provide a display device, the display device includes a liquid crystal display panel, a backlight panel, a flexible circuit board and a hybrid driving board, the hybrid driving board includes a substrate, a source driver disposed on the substrate and a backlight controller disposed on the substrate;

[0005] The source driver is electrically connected to the liquid crystal display panel through a flexible circuit board, the backlight controller is electrically connected to the liquid crystal display panel through a flexible circuit board, the source driver provides a source drive signal to the liquid crystal display panel through the flexible circuit board, conductive support columns and non-conductive support columns are provided between the liquid crystal display panel and the backlight panel, the conductive support columns and the non-conductive support columns are used to maintain the optical distance between the liquid crystal display panel and the backlight panel, and the backlight controller transmits the backlight drive signal to the backlight panel through the flexible circuit board and the conductive support columns.

[0006] In some embodiments, the liquid crystal display panel includes a first front surface and a first back surface that are arranged opposite to each other; a first wiring area is arranged at an edge side of the first front surface, a second wiring area is arranged at an edge side of the first back surface, and the first wiring area and the second wiring area are arranged opposite to each other;

[0007] A metal wire is overlapped between the first wiring area and the second wiring area. The flexible circuit board is located above the first wiring area and contacts one end of the metal wire. The conductive support column is located below the second wiring area and contacts the other end of the metal wire.

[0008] In some embodiments, the flexible circuit board includes a plurality of source driving lines and a plurality of backlight driving lines;

[0009] A plurality of source driving lines and a plurality of backlight driving lines are arranged side by side, and a backlight driving line is arranged between any two adjacent source driving lines; and the backlight driving line is in contact with the metal wire.

[0010] In some embodiments, the plurality of backlight driving lines include a power line of a driver, a power line of a light source, a data line, a scanning signal line, and a ground signal line arranged in sequence;

[0011] or,

[0012] The plurality of backlight driving lines include a driver power line, a light source power line, a backlight data line and a ground signal line which are arranged in sequence.

[0013] In some embodiments, the backlight panel includes a second front surface, and a third wiring area is provided at an edge side of the second front surface;

[0014] The third wiring region is provided with a wiring terminal, and the conductive support column is electrically connected to the wiring terminal located in the third wiring region.

[0015] In some embodiments, a projection of the third wiring area on the display panel overlaps with the second wiring area.

[0016] In some embodiments, a display device includes a backlight film material;

[0017] The backlight film is located between the liquid crystal display panel and the backlight plate, and the projection of the backlight film on the liquid crystal display panel coincides with the display area on the liquid crystal display panel;

[0018] The projection of the backlight film on the backlight board coincides with the backlight area of ​​the backlight board;

[0019] The non-conductive supporting column is located between the backlight film material and the backlight plate.

[0020] In some embodiments, the conductive support column is located between the second wiring region and the third wiring region.

[0021] In some embodiments, a light emitting unit, a backlight driver and a driving line are arranged in the backlight area; the driving line is electrically connected to the wiring terminal in the third wiring area, and the driving line is electrically connected to the light emitting unit and the backlight driver.

[0022] In some embodiments, the cross-section of the conductive support pillar is trapezoidal or triangular.

[0023] The display device provided by the present application includes a liquid crystal display panel, a backlight panel, a flexible circuit board and a hybrid drive panel, and the hybrid drive panel includes a substrate, a source driver arranged on the substrate and a backlight driver arranged on the substrate. The source driver is electrically connected to the liquid crystal display panel through the flexible circuit board, the backlight driver is electrically connected to the liquid crystal display panel through the flexible circuit board, the source driver provides a source drive signal to the liquid crystal display panel through the flexible circuit board, a conductive support column and a non-conductive support column are provided between the liquid crystal display panel and the backlight panel, and the backlight controller transmits the backlight drive signal to the backlight panel through the flexible circuit board and the conductive support column, and there is no need to configure a connector for the backlight panel separately, and there is no need to set a jumper, which simplifies the structure of the backlight panel. In addition, the optical distance between the liquid crystal display panel and the backlight panel needs to be maintained, and a non-conductive support is usually provided. The conductive support column is arranged by using the existing optical space, and the conductive support column and the non-conductive support column are used to maintain the optical distance between the liquid crystal display panel and the backlight panel, without changing the structure of the original display device, which can further simplify the structure of the display device. In addition, the backlight controller and the source driver use the same flexible circuit board together, which can simplify the structure and reduce the cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0025] Figure 1 A schematic diagram of the structure of a display device;

[0026] Figure 2 The present invention is a circuit schematic diagram of a backlight panel;

[0027] Figure 3 is a cross-sectional view of a display device;

[0028] Figure 4 A schematic diagram of the structure of a display device provided in some embodiments of the present application;

[0029] Figure 5 A cross-sectional view in one direction of a display device provided in some embodiments of the present application;

[0030] Figure 6 A top view of a display device provided for some embodiments of the present application;

[0031] Figure 7 A cross-sectional view of a display device in another direction provided by some embodiments of the present application;

[0032] Figure 8 A cross-sectional view in another direction of a display device provided for some embodiments of the present application.

[0033] Reference numerals:

[0034] 110, liquid crystal display panel; 120, backlight panel; 130, backlight driver board; 140, source driver board; 150, first packaging structure; 160, second packaging structure; 170, non-conductive support column; 180, backlight film; 190, connector; Vscan, scanning signal line; Vled, light source power line; GND, ground signal line; Vcc, driver power line; Vdata, backlight data line; 100, backlight driver; 240, metal wire; 230, conductive support column; 220, flexible circuit board; 210, hybrid driver board; 111, first wiring area; 113, second wiring area; 112, display area; 121, third wiring area; 122, backlight area.

[0035] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0036] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application.

[0037] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] It should be noted that the high level and low level referred to in this application are relative concepts (i.e., the voltage value of the high level is higher than the voltage value of the corresponding low level), and the specific voltage value of the high level is not limited, nor is the specific voltage value of the low level. It is also not limited to the high levels applied to different signal lines in this specific embodiment being equal, nor is it limited to the high levels of specific signal lines being equal at different stages. Those skilled in the art should understand that the corresponding high level and low level values ​​can be set according to the process node, speed requirements, reliability requirements, etc.

[0040] Backlight Unit (BLU) plays a vital role in display devices. It is responsible for providing a uniform, high-brightness light source for the liquid crystal display panel. Mini-LED BLU refers to the use of Mini-LED as a backlight source. Compared with traditional LED backlight, Mini-LED BLU has the advantages of higher brightness, wider color gamut, more accurate color reproduction and higher contrast.

[0041] Mini-LED BLU reduces the size of Mini-LED lamp beads to between tens of microns and hundreds of microns, allowing more LED lamp beads to be integrated into the same backlight module. This high-density LED layout enables Mini-LED BLU to achieve more sophisticated local dimming control, thereby significantly improving the image quality of display devices.

[0042] In addition, Mini-LED BLU also has the characteristics of high energy efficiency and low power consumption. As the size of the LED lamp beads is reduced, its luminous efficiency is higher, which can reduce power consumption while maintaining high brightness.

[0043] Figure 1 is a structural schematic diagram of a display device, such as Figure 1 As shown, the display device includes a liquid crystal display panel 110 and a backlight panel 120. The backlight panel 120 includes a plurality of Mini-LED sub-backlight panels, which are laid flat on a plane, and the Mini-LED sub-backlight panel located above is connected to the Mini-LED sub-backlight panel located below through a flexible circuit board and a connector 190. The display device also includes a source driver board 140 and a backlight driver board 130, and the source driver board 140 is electrically connected to the liquid crystal display panel 110 through a flexible circuit board technology or a first packaging structure 150. The backlight driver board 130 is electrically connected to the backlight panel 120 through a flexible circuit board technology or a second packaging structure 160.

[0044] Figure 2 is a circuit diagram of a backlight panel 120, such as Figure 2As shown, the backlight panel 120 includes a plurality of backlight drivers 100 and a plurality of backlight light sources. Each backlight driver 100 is provided with a power supply terminal, a data input terminal, a scan signal terminal and a ground terminal. Accordingly, a backlight data line Vdata, a scan signal line Vscan, a ground signal line GND and a driver power supply line Vcc are arranged on the backlight panel 120. The power supply terminal of the backlight driver 100 is electrically connected to the driver power supply line Vcc, the ground terminal of the backlight driver 100 is electrically connected to the ground signal line GND, the data input terminal of the backlight driver 100 is electrically connected to the backlight data line Vdata, and the scan signal terminal of the backlight driver 100 is electrically connected to the scan signal line Vscan.

[0045] The scanning signal line Vscan is used to transmit the scanning signal, the backlight data line Vdata is used to transmit the backlight data, the driver power line Vcc is used to provide power to the backlight driver 100, and the ground signal line GND is used to provide grounding to the backlight driver 100. The backlight light source includes a light source power supply terminal and a light source signal terminal. The light source power supply terminal of the backlight light source is electrically connected to the light source power supply line Vled, and the light source power supply line Vled provides power to the backlight light source. The light source signal terminal of the backlight light source is electrically connected to the output terminal of the backlight driver 100. The backlight driver 100 provides a driving signal to the backlight light source. The backlight light source emits a light signal of corresponding brightness under the drive of the driving signal.

[0046] Continue to refer Figure 2 The multiple backlight drivers 100 are arranged in an m×n matrix, and the backlight drivers 100 arranged along the first direction are called a row of backlight drivers, and the backlight drivers 100 arranged along the second direction are called a column of backlight drivers. A group of wire harnesses are arranged between any two columns of backlight drivers 100, and the group of wire harnesses includes a light source power line Vled, a driver power line Vcc, a ground signal line GND, a backlight data line Vdata, and a signal scan line Vscan.

[0047] It should be noted here that Figure 2 It is only a structural diagram of the backlight panel. As another structure of the backlight panel, the backlight driver may not include a scanning signal terminal. Accordingly, only the light source power line Vled, the driver power line Vcc, the ground signal line GND and the backlight data line Vdata may be arranged on the backlight panel, and there is no need to arrange the signal scanning line Vscan.

[0048] In the above display device, the backlight panel 120 is provided with a backlight driving board 130. Since the backlight driving board 130 needs to be electrically connected to the backlight panel 120 through a flexible circuit board, and since the backlight panel 120 is usually a PCB board, a connector 190 needs to be provided on the backlight panel 120 to realize the electrical connection between the backlight driving board 130 and the backlight panel 120. The connector 190 is provided with a light source power line Vled, a driver power line Vcc, a ground signal line GND, a backlight data line Vdata, and a signal scanning line Vscan. The wiring harness in the connector 190 needs to be dispersed to the backlight panel 120, which will easily cause wire crossing, and a jumper structure needs to be provided, which will make the overall structure highly complex, require more wires, and have high production costs.

[0049] Figure 3 is a cross-sectional view of a display device, such as Figure 3 As shown, a backlight film 180 is provided between the LCD panel 110 and the backlight plate 120 to improve the display performance of the display device. A non-conductive support 170 is provided between the LCD panel 110 and the backlight plate 120 to maintain the optical distance between the LCD panel 110 and the backlight plate 120.

[0050] like Figure 4 and Figure 5 As shown, some embodiments of the present application provide a display device, which includes a liquid crystal display panel 110, a backlight panel 120, a flexible circuit board 220, and a hybrid driving board 210, wherein the hybrid driving board 210 includes a substrate, a source driver disposed on the substrate, and a backlight driver disposed on the substrate.

[0051] The source driver is electrically connected to the liquid crystal display panel 110 through the flexible circuit board 220, the backlight driver is electrically connected to the liquid crystal display panel 110 through the flexible circuit board 220, the source driver provides a source driving signal to the liquid crystal display panel 110 through the flexible circuit board 220, a conductive support column 230 and a non-conductive support column 170 are provided between the liquid crystal display panel 110 and the backlight panel 120, the conductive support column 230 and the non-conductive support column 170 are used to maintain the optical distance between the liquid crystal display panel 110 and the backlight panel 120, and the backlight controller transmits a backlight driving signal to the backlight panel 120 through the flexible circuit board 220 and the conductive support column 230. Among them, the source driving signal is used to drive the liquid crystal display panel 110 to display, and the backlight driving signal is used to drive the backlight panel 120 to provide a backlight light source.

[0052] By utilizing the existing optical space between the liquid crystal display panel 110 and the backlight panel 120, a conductive support column 230 is set to transmit the backlight driving signal on the flexible circuit board 220 to the backlight panel 120. The flexible circuit board 220 is also used to transmit the source driving signal. By transmitting the backlight driving signal through the flexible circuit board 220 and the conductive support column 230, there is no need to configure the connector 190 for the backlight panel 120 separately, and the wiring harness of the flexible circuit board 220 is dispersed, which reduces the situation of crossing on the backlight panel 120 due to the concentrated wiring harness of the connector 190. In addition, there is no need to set a jumper on the backlight panel 120, simplifying the structure of the backlight panel 120. By utilizing the existing optical space to set the conductive support column 230, there is no need to change the structure of the original display device, which can further simplify the structure of the display device. In addition, the backlight controller and the source driver use the same flexible circuit board together, which can simplify the structure and reduce the cost of the device.

[0053] It should be noted that the flexible circuit board connecting the hybrid driving board and the liquid crystal display panel can be formed by packaging technology, such as COF technology. It is also possible to prepare the flexible circuit board using a manufacturing process of a flexible circuit board, and then connect the flexible circuit board between the hybrid driving board and the liquid crystal display panel using a bonding process.

[0054] In some embodiments, Figure 5 and Figure 6 As shown, the liquid crystal display panel 110 includes a first front side and a first back side that are arranged oppositely. A first wiring area 111 is provided on the edge side of the first front side, and a second wiring area 113 is arranged on the edge side of the first back side. The first wiring area 111 and the second wiring area 113 are arranged oppositely, so that it is convenient to overlap the metal wire 240 between the first wiring area 111 and the second wiring area 113. In addition, the flexible circuit board 220 is located above the first wiring area 111, and the flexible circuit board 220 contacts one end of the metal wire 240. The conductive support column 230 is located below the second wiring area 113, and the conductive support column 230 contacts the other end of the metal wire 240. By such an arrangement, the flexible circuit board 220 and the conductive support column 230 are electrically connected, and the backlight driving signal transmitted on the flexible circuit board 220 is transmitted to the conductive support column 230 through the metal wire 240.

[0055] In some embodiments, Figure 7 and Figure 8As shown, the flexible circuit board 220 includes a plurality of source drive lines 222 and a plurality of backlight drive lines 221. The plurality of source drive lines 222 and the plurality of backlight drive lines 221 are arranged side by side, the source drive lines 222 are used to transmit source drive signals, and the backlight drive lines 221 are used to transmit backlight drive signals. A backlight drive line 221 is arranged between any two adjacent source drive lines 222, and the backlight drive line 221 is in contact with the metal wire 240, so that the backlight drive signal transmitted on the backlight drive line 221 is transmitted to the metal wire 240, and then transmitted to the backlight panel 120 through the conductive support column 230. By arranging the source drive line 222 and the backlight drive line 221 at intervals, that is, arranging the backlight drive line 221 between any two adjacent source drive lines 222, the arrangement of the backlight drive line 221 can be made more dispersed, thereby reducing the line crossing when wiring on the backlight panel 120, and simplifying the structure on the backlight panel 120.

[0056] In other embodiments, on the flexible circuit board 220, a plurality of source driving lines 222 may be arranged in a first area, and a plurality of backlight driving lines 221 may be arranged in a second area, and the first area and the second area are adjacently arranged areas. The layout of the source driving lines and the backlight driving lines on the flexible circuit board 220 is not limited here.

[0057] In some embodiments, the plurality of backlight drive lines include a driver power line Vcc, a light source power line Vled, a backlight data line Vdata, a scan signal line Vscan, and a ground signal line GND arranged in sequence. The backlight drive signal includes a driver power signal, a light source power signal, a backlight data signal, a scan signal, and a ground signal. The driver power line Vcc is used to transmit the driver power signal, the light source power line Vled is used to transmit the backlight power signal, the backlight data line Vdata is used to transmit the backlight data signal, the scan signal line Vscan is used to transmit the scan signal, and the ground signal line GND is used to transmit the ground signal.

[0058] Among them, on the flexible circuit board 220, the driver power line Vcc, the light source power line Vled, the backlight data line Vdata, the scan signal line Vscan and the ground signal line GND are arranged in sequence from left to right, or in sequence from right to left. By arranging the driver power line Vcc, the light source power line Vled, the backlight data line Vdata, the scan signal line Vscan and the ground signal line GND in sequence, the voltage difference between adjacent lines can be reduced, avoiding the risk of breakdown between lines.

[0059] In some embodiments, the plurality of backlight driving lines include a driver power line Vcc, a light source power line Vled, a backlight data line Vdata, and a ground signal line GND arranged in sequence. The backlight driving signal includes a driver power signal, a light source power signal, a backlight data signal, and a ground signal. The driver power line Vcc is used to transmit the driver power signal, the light source power line Vled is used to transmit the backlight power signal, the backlight data line Vdata is used to transmit the backlight data signal, and the ground signal line GND is used to transmit the ground signal.

[0060] Among them, on the flexible circuit board 220, the driver power line Vcc, the light source power line Vled, the backlight data line Vdata, and the ground signal line GND are arranged in sequence from left to right, or in sequence from right to left. By arranging the driver power line Vcc, the light source power line Vled, the backlight data line Vdata, and the ground signal line GND in sequence, the voltage difference between adjacent lines can be reduced, avoiding the risk of breakdown between lines.

[0061] In some embodiments, Figure 5 and Figure 6 As shown, the backlight panel 120 includes a second front side, a third wiring area 121 is provided on the edge side of the second front side, a wiring terminal is provided in the third wiring area 121, and the conductive support column 230 is electrically connected to the wiring terminal located in the third wiring area 121, so that the signal in the conductive support column 230 is transmitted to the backlight panel 120.

[0062] More specifically, the terminals in the third wiring area 121 include a driver power line terminal, a light source power line terminal, a backlight data line terminal, a scan signal line terminal, and a ground signal line terminal. The conductive support column 230 for receiving the driver power signal is electrically connected to the driver power line terminal of the third wiring area 121, so that the driver power signal is transmitted to the backlight panel 120. The conductive support column 230 for receiving the light source power signal is electrically connected to the light source power line terminal of the third wiring area 121, so that the light source power signal is transmitted to the backlight panel 120. The conductive support column 230 for receiving the backlight data signal is electrically connected to the data line terminal of the third wiring area 121, so that the backlight data signal is transmitted to the backlight panel 120. The conductive support column 230 for receiving the scan signal is electrically connected to the scan signal line terminal of the third wiring area 121, so that the scan signal is transmitted to the backlight panel 120. The conductive support column 230 for receiving the ground signal is electrically connected to the ground signal line terminal of the third wiring area 121 , so that the wiring signal is transmitted to the backlight panel 120 .

[0063] In some embodiments, Figure 5 and Figure 6As shown, the projection of the third wiring area 121 on the display panel overlaps with the second wiring area 113. By setting in this way, it is convenient to prepare the conductive support column 230 whose center line is perpendicular to the backlight plate 120 and the liquid crystal display panel 110, so that the conductive support column 230 is electrically connected to the metal wire located in the second wiring area 113, and the conductive support column 230 is electrically connected to the wiring terminal located in the third wiring area 121.

[0064] In some embodiments, Figure 5 and Figure 6 As shown, the liquid crystal display panel 110 also includes a display area 112, which is arranged adjacent to the first wiring area 111. The first wiring area 111 is also provided with a wiring terminal. The source drive line on the flexible circuit board 220 is electrically connected to the wiring terminal in the first wiring area 111 to provide a source drive signal to the display area 112 of the liquid crystal display panel 110.

[0065] In some embodiments, Figure 7 and Figure 8 As shown, the cross section of the conductive support column 230 is triangular or trapezoidal, which can improve the supporting performance of the conductive support column 230 and the contact performance between the conductive support column 230 and the liquid crystal display panel 110 .

[0066] In some embodiments, the display device includes a backlight film 180. The backlight film 180 is located between the flexible circuit board 220 and the backlight plate 120, and the projection of the backlight film 180 on the liquid crystal display panel 110 coincides with the display area 112 on the liquid crystal display panel 110. The projection of the backlight film 180 on the backlight plate 120 coincides with the backlight area 122 of the backlight plate 120. The non-conductive support column 170 is located between the backlight film 180 and the backlight plate 120, so as to maintain the optical distance between the liquid crystal display panel 110 and the backlight plate 120.

[0067] In some embodiments, the conductive support column is located between the second wiring area and the third wiring area, so that the conductive support column 230 and the non-conductive support column 170 jointly maintain the optical distance between the liquid crystal display panel 110 and the backlight panel 120, and the conductive support column 230 realizes signal transmission between the flexible circuit board 220 and the backlight panel 120.

[0068] In some embodiments, a light-emitting unit, a backlight driver 100 and a driving line are arranged in the backlight area 122. The driving line is electrically connected to the terminal in the third wiring area 121, and the driving line is electrically connected to the light-emitting unit and the backlight driver, thereby transmitting the source driving signal to the backlight area 122.

[0069] More specifically, the driving lines include a driver power line Vcc, a light source power line Vled, a backlight data line Vdata, a scan signal line Vscan, and a ground signal line GND. The driver power line terminal of the third wiring area 121 is electrically connected to the driver power line Vcc, so that the driver power signal is transmitted to the backlight area 122. The light source power line terminal of the third wiring area 121 is electrically connected to the light source power line Vled, so that the light source power signal is transmitted to the backlight area 122. The data line terminal of the third wiring area 121 is electrically connected to the backlight data line Vdata, so that the backlight data signal is transmitted to the backlight area 122. The scan signal line terminal of the third wiring area 121 is electrically connected to the scan signal line Vscan, so that the scan signal is transmitted to the backlight area 122. The ground signal line terminal of the third wiring area 121 is electrically connected to the ground signal line GND, so that the wiring signal is transmitted to the backlight area 122.

[0070] Those skilled in the art will readily appreciate other embodiments of the present application after considering the description and practicing the contents disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The description and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0071] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A display device, characterized in that: The display device comprises a liquid crystal display panel (110), a backlight panel (120), a flexible circuit board (220) and a hybrid driving board (210), wherein the hybrid driving board (210) comprises a substrate, a source driver arranged on the substrate and a backlight controller arranged on the substrate; The source driver is electrically connected to the liquid crystal display panel (110) through a flexible circuit board (220); the backlight controller is electrically connected to the liquid crystal display panel (110) through the flexible circuit board (220); the source driver provides a source driving signal to the liquid crystal display panel (110) through the flexible circuit board (220); a conductive support column (230) and a non-conductive support column (170) are provided between the liquid crystal display panel (110) and the backlight panel (120); the conductive support column (230) and the non-conductive support column (170) are used to maintain an optical distance between the liquid crystal display panel (110) and the backlight panel (120); and the backlight controller transmits a backlight driving signal to the backlight panel (120) through the flexible circuit board (220) and the conductive support column (230).

2. The display device according to claim 1, characterized in that The liquid crystal display panel (110) comprises a first front surface and a first back surface which are arranged opposite to each other; a first wiring area (111) is provided on the edge side of the first front surface, a second wiring area (113) is arranged on the edge side of the first back surface, and the first wiring area (111) and the second wiring area (113) are arranged opposite to each other; A metal wire (240) is overlapped between the first wiring area (111) and the second wiring area (113); the flexible circuit board (220) is located above the first wiring area (111), and the flexible circuit board (220) is in contact with one end of the metal wire (240); the conductive support column (230) is located below the second wiring area (113), and the conductive support column (230) is in contact with the other end of the metal wire (240).

3. The display device according to claim 2, characterized in that The flexible circuit board (220) comprises a plurality of source driving lines and a plurality of backlight driving lines; A plurality of the source driving lines and a plurality of the backlight driving lines are arranged side by side, and a backlight driving line is arranged between any two adjacent source driving lines; The backlight driving line contacts the metal wire.

4. The display device according to claim 3, characterized in that The plurality of backlight driving lines include a driver power line (Vcc), a light source power line (Vled), a backlight data line (Vdata), a scan signal line (Vscan) and a ground signal line (GND) arranged in sequence; or, The plurality of backlight driving lines include a driver power line (Vcc), a light source power line (Vled), a backlight data line (Vdata) and a ground signal line (GND) which are arranged in sequence.

5. The display device according to any one of claims 2 to 4, characterized in that: The backlight plate (120) comprises a second front surface, and a third wiring area (121) is provided on the edge side of the second front surface; A wiring terminal is provided in the third wiring area (121), and the conductive support column (230) is electrically connected to the wiring terminal located in the third wiring area (121).

6. The display device according to claim 5, characterized in that A projection of the third wiring area (121) on the display panel overlaps with the second wiring area (113).

7. The display device according to claim 5, characterized in that The display device comprises a backlight film material (180); The backlight film (180) is located between the liquid crystal display panel (110) and the backlight plate (120), and the projection of the backlight film (180) on the liquid crystal display panel (110) overlaps with the display area (112) on the liquid crystal display panel (110); The projection of the backlight film (180) on the backlight plate (120) overlaps with the backlight area (122) of the backlight plate (120); The non-conductive support column (170) is located between the backlight film (180) and the backlight plate (120).

8. The display device according to claim 7, characterized in that The conductive support column (230) is located between the second wiring area (113) and the third wiring area (121).

9. The display device according to claim 7, characterized in that: A light-emitting unit, a backlight driver and a driving line are arranged in the backlight area (122); the driving line is electrically connected to a terminal in the third wiring area (121), the driving line is electrically connected to the light-emitting unit, and the driving line is electrically connected to the backlight driver.

10. The display device according to any one of claims 1 to 4, characterized in that: The cross section of the conductive support column is trapezoidal or triangular.

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