TWI708229B - Display device - Google Patents

Abstract

A display device including a display panel, a first PCB, a second PCB, and a first connecting PCB. The first PCB and the second PCB couple to the display panel separately. The first connecting PCB has a first end and a second end, wherein the first end has a first contact coupling to the first PCB, the second end has a plurality of second contacts coupling to the second PCB, and the first contact and the plurality of second contacts are electrically connected to each other.

Description

Display device

The present invention relates to a display device; specifically, the present invention relates to a display device with an external signal circuit.

Flat and curved display devices have been widely used in various electronic devices, such as mobile phones, personal wearable devices, televisions, vehicle hosts, personal computers, digital cameras, and handheld video games. However, with the increase in consumer demand, the narrow bezel and thinner specifications of display devices have become increasingly important.

In terms of display devices, gate drive circuit technology has been widely used in display device manufacturing in recent years. By directly arranging the gate drive circuit on the array substrate, it not only saves the production cost of the gate drive chip for the external silicon chip, but also eliminates the need for bonding. The production steps of the gate drive chip further reduce the manufacturing process of the manufacturer, and can simultaneously realize a narrow frame and thin display device. However, in the process of manufacturing the array substrate, when the manufacturing process produces errors, such as a short circuit or incomplete etching of the circuit board, it will cause defects in the gate drive circuit and affect the image quality signal. In response to this defect, repairing the panel requires a new replacement of the substrate, which is not only a cumbersome process of heavy work, but also consumes a lot of time, resulting in increased costs. Therefore, a solution should be proposed.

One of the objectives of the present invention is to provide a display device that can effectively reduce the number of materials that need to be replaced during heavy work, so as to reduce manufacturing costs.

One of the objectives of the present invention is to provide a display device with a better simple assembly method to improve production line efficiency.

One of the objectives of the present invention is to provide a display device with better assembly flexibility to match different models and models.

In one example, the display device includes a display panel, a first circuit board, a second circuit board, and a first connection circuit board. The first circuit board and the second circuit board are respectively coupled to the display panel; the first connection circuit board has a first end and a second end, wherein the first end has a first contact coupled to the first circuit board, and the second The terminal has a plurality of second contacts coupled to the second circuit board, and the first contacts and the plurality of second contacts are connected to each other.

In another example, the display device includes a display panel, a first circuit board, a second circuit board, and a first connection circuit board. The display panel has a gate drive circuit coupled to a plurality of gate control signal lines; the first circuit board and the second circuit board are respectively coupled to the display panel; the first connection circuit board has a first end and a second end, The first end is coupled to the first circuit board, and the second end is coupled to the second circuit board; the first circuit board receives the non-gate control signal, and the non-gate control signal passes through the first connection circuit board and the second circuit board To the gate control signal lines in the display panel.

Through the arrangement of the first connection circuit board in the above embodiment, a display panel can be realized, which is easy to assemble on the production line, reduces the waste of components during heavy work, and improves the production efficiency and yield. At the same time, it meets the narrow frame and the yield of the display panel. Specification requirements such as thinning.

99: display device

600: display panel

31: substrate

100: The first circuit board

200: second circuit board

300: third circuit board

400: Fourth circuit board

500: Control circuit board

32: connection line

33: connection line

10: The first connection circuit board

20: Second connection circuit board

VSSQ: contact

VSSG: contact

VGHD: Contact

GL01: Multiple gate control signal line

GL02: Multiple gate control signal line

VCOM: Contact

HC1~HC8: Contact

LC1~LC2: contact

GND: contact

ST: Contact

21: first end

22: second end

23: third end

24: Fourth end

78: First contact

79: second contact

80: empty contact

73: third contact

74: Fourth contact

77: connection unit

Fig. 1 is a schematic plan view of an embodiment of a display panel; Fig. 2 is a partial schematic view of an embodiment of a first connection circuit board; Fig. 3 is a schematic plan view of another embodiment of a display panel; Fig. 4A is another embodiment of the first connection circuit board Example partial schematic diagram; Figure 4B is a partial schematic diagram of the embodiment of the second connection circuit board

In the drawings, the thickness of layers, films, panels, regions, etc., are exaggerated for clarity. Throughout the specification, the same reference numerals denote the same elements. It should be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or Intermediate elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements. As used herein, "connection" can refer to physical and/or electrical connection. Furthermore, "electrical connection" or "coupling" can mean that there are other elements between two elements.

It should be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, layers and/or parts, these elements, components, regions, and/or Or part should not be restricted by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Therefore, the “first element”, “component”, “region”, “layer” or “portion” discussed below may be referred to as a second element, component, region, layer or portion without departing from the teachings herein.

The terminology used here is only for the purpose of describing specific embodiments and is not limiting. As used herein, unless the content clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms, including "at least one." "Or" means "and/or". As used herein, the term "and/or" includes any and all combinations of one or more related listed items. It should also be understood that when used in this specification, the terms "including" and/or "including" designate the presence of the features, regions, wholes, steps, operations, elements, and/or components, but do not exclude one or more The existence or addition of other features, regions as a whole, steps, operations, elements, components, and/or combinations thereof.

In addition, relative terms such as "lower" or "bottom" and "upper" or "top" can be used herein to describe the relationship between one element and another element, as shown in the figure. It should be understood that relative terms are intended to include different orientations of the device other than those shown in the figures. For example, if the device in one figure is turned over, elements described as being on the "lower" side of other elements will be oriented on the "upper" side of the other elements. Therefore, the exemplary term "lower" may include an orientation of "lower" and "upper", depending on the specific orientation of the drawing. Similarly, if the device in one figure is turned over, elements described as "below" or "below" other elements will be oriented "above" the other elements. Thus, the exemplary terms "below" or "below" can include an orientation of above and below.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of related technologies and the present invention, and will not be interpreted as idealized or excessive The formal meaning, unless explicitly defined as such in this article.

The exemplary embodiments are described herein with reference to cross-sectional views that are schematic diagrams of idealized embodiments. Therefore, a change in the shape of the diagram as a result of, for example, manufacturing technology and/or tolerance can be expected. Therefore, the embodiments described herein should not be interpreted as being limited to the specific shape of the area as shown herein, but include, for example, shape deviations caused by manufacturing. For example, areas shown or described as flat may generally have rough and/or non-linear characteristics. In addition, the acute angles shown may be rounded. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to show the precise shape of the regions, and are not intended to limit the scope of the claims.

The present invention provides a display device. In one embodiment of the present invention, the display device is a flat or curved display device. For example, it can be a non-self-luminous or self-luminous display panel such as a liquid crystal display panel or an electrophoretic display panel; Used in computer monitors, TVs, monitors, and car hosts. In addition, the display panel can also be applied to other electronic devices, for example, as a display screen of a mobile phone, a digital camera, a handheld game instrument, etc. However, it is not limited to this, and can be adjusted as required.

FIG. 1 is a schematic plan view of an embodiment of the display panel of the present invention. In this embodiment, the display device 99 includes a display panel 600, a first circuit board 100, a second circuit board 200, and a first connecting circuit board 10. The display panel 600 includes a substrate 31. In this embodiment, the substrate 31 is a substrate for providing control circuits such as a thin film transistor circuit substrate, and can be overlapped with another substrate above, but it is not limited to this. In this embodiment, the display panel 600 has a gate drive circuit (not shown), and the gate drive circuit is preferably connected to a plurality of gate control signal lines GL01, which are preferably arranged on the side of the substrate 31, To control the opening and closing of each pixel gate in the display device 99.

As shown in FIG. 1, in this embodiment, the first circuit board 100 and the second circuit board 200 are respectively used to process the driving-related settings of the display device 99, such as providing and transmitting image display signals. The first circuit board 100 and the second circuit board 200 are coupled to the substrate 31 of the display panel 600 through the connecting wire 32. The connecting wire 32 can preferably be a chip on film substrate, on which a data (source) driver chip and other circuit elements can be disposed, but it is not limited to this. The first circuit board 100 and the second circuit board 200 respectively have a plurality of pins or contacts. Preferably, there is an initial correspondence between the pins or contacts on the first circuit board 100 and the pins or contacts on the second circuit board 200. For example, the pins or contacts on the first circuit board 100 receive signals from The gate control signal of the source has the above-mentioned initial corresponding relationship with the pin on the second circuit board 200 connected to the gate control signal line GL01 in the display panel 600. In another example, the pins of the first circuit board 100 receive the start signal (ST) or the common voltage (VCOM) of the frame from the signal source, and the pins of the first circuit board 200 are connected to the corresponding circuits in the display panel 600. There will be the aforementioned initial correspondence between the pins of the unit.

The first connecting circuit board 10 has a first end 21 and a second end 22. In this embodiment, the first connecting circuit board 10 may preferably be a flexible printed circuit board (Flexible Printed Circuit), which is not only light, thin, and durable The characteristics of bending, anti-interference, etc., preferably use conductive copper foil for circuit wiring. The first connecting circuit board 10 may preferably be a multilayer printed circuit with a via structure. The via structure is used to connect various layers of copper foil. Double-sided printed circuit, but not limited to this. Preferably, there are connectors or connection points at the first end 21 and the second end 22 of the first connection circuit board 10, respectively, and the first connection circuit board 10 can be respectively coupled to the first circuit board 100 through the first end 21 , Coupled to the second circuit board 200 through the second terminal 22. With the above arrangement, the first connecting circuit board 10 can be easily replaced, and the problem that the conventional heavy-duty process is cumbersome and difficult can be solved.

2 is a partial schematic diagram of an embodiment of the first connection circuit board 10. In this embodiment, the first end 21 of the first connection circuit board 10 has a first contact 78 coupled to the first circuit board 100, and a second The terminal 22 has a plurality of second contacts 79 coupled to the second circuit board 200, and the first contacts and the plurality of second contacts are connected to each other, for example, through the first connection circuit board 10 internal circuit at the above contacts Conduction between. For example, in this embodiment, there are a plurality of contacts on the first end 21 of the first connecting circuit board 10, and the text on the contacts represents the functional pins of the contacts when the first circuit board 100 is used. , But not limited to this. In this embodiment, at the first end 21, the signal received from each pin of the first circuit board 100 represented by each contact is as follows: the signal received by the contact ST represents the start signal for each screen; The voltage received by the contact VCOM is a common voltage; the voltage received by the contact VSSQ and the contact VSSG is a negative voltage, which can make the gate of the pixel better and the pixel can maintain the voltage better; contacts HC1~HC8 The receiver is a high-frequency signal, which is used as a gate control signal to open the gate; the receiver of the contacts LC1 and LC2 is a low-frequency signal to reduce the voltage at the Q point; the receiver of the contact VGHD is a high voltage, which can be The gate control signals received by the contacts HC1~HC8 cooperate to open the gate. Among the above-mentioned contacts, the signals received by the contacts HC1~HC8 are gate control signals, which are used to directly control the opening of the gate; the signals received by the other contacts do not produce the direct control effect of opening the gate. It is a non-gate control signal.

In this embodiment, the signal can be transmitted from the first end 21 to the second end 22 through the copper foil circuit of the first connection circuit board 10. It should be noted that the signal at the first end 21 of the first connection circuit board 10 In the contact part, some of the circuits are open. In other words, the contact connected to the open circuit cannot transmit the signal to the predetermined function. For example, in this embodiment, the circuit part of the contacts HC1~HC8, the contact ST, the contacts LC1~LC2, and the contact VGHD at the first end 21 is preferably in the form of an open circuit, for example, at the first end 21 There is only a contact, but no corresponding line is connected to this contact, or there is a circuit break between the contact and the back-end line.

In addition, in this embodiment, the connection at the second end 22 of the first connection circuit board 10 At the point part, some contacts are connected to each other at the second end 22. Specifically, the first connecting circuit board 10 may be a double-layer or multilayer flexible printed circuit board, which connects various layers of copper foil through the arrangement of via holes and the arrangement of the circuits to form the connecting unit 77. With the arrangement of the connection unit 77, part of the contacts at the second end 22 or other positions of the first connection circuit board 10 can be connected to each other. For example, as shown in FIG. 2, at the second end 22, the contacts HC1~HC8 are preferably connected to the contact VCOM, the contact ST is preferably connected to the contact VGHD, and the contacts LC1~LC2 are preferably connected to each other. The contact VSSQ is connected to each other, and the contact VGHD and the contact VSSQ are preferably connected to each other. In other words, in this connection mode, the contact VCOM of the first end 21 is the first contact 78, and the contact VCOM with the second end 22 as the second contact 79 and the contacts HC1~HC8 are Mutual conduction, so that the second contacts HC1 to HC8 originally used to transmit gate control signals receive the signal from the first contact VCOM of the first terminal 21. With the above design, in this embodiment, the gate control signal line GL01 receives a VCOM signal, that is, a non-gate control signal, and cannot receive a gate control signal. In addition, the contact VSSQ of the first terminal 21 can also be used as the first contact, and is connected to the contacts VSSQ, VGHD, LC1 and LC2 of the second terminal 22 as the second contact.

When there is a problem with the gate circuit in the display panel, by replacing the above-mentioned first connecting circuit board 10, the pins on the first circuit board 100 and the pins on the second circuit board 200 can be different from the original The initial correspondence to convey the signal. In other words, by replacing the above-mentioned first connecting board 10, the gate driving circuit in the display panel can be stopped by the signal from the first circuit board 100.

FIG. 3 is a schematic plan view of another embodiment of the display panel of the present invention. In this embodiment, the configuration of the display device 99 in FIG. 1 is substantially the same, so it will not be repeated here. Which contains significant The display panel 600, the first circuit board 100, the second circuit board 200 and the first connection circuit board 10 are shown. The display panel 600 may preferably be a display panel with a gate drive circuit, wherein the gate drive circuit is preferably arranged on the left and right sides of the substrate 31, wherein the gate drive circuit is respectively connected to the plurality of gate control signal lines GL01, For GL02, please refer to the previous description for detailed settings, so I won’t repeat it here. The first circuit board 100 and the second circuit board 200 are coupled to the substrate 31 of the display panel 600 through connecting wires 32. The first connecting circuit board 10 has a first end 21 and a second end 22, which can connect the first connecting circuit respectively The board 10 is coupled to the first circuit board 100 through the first end 21 and is coupled to the second circuit board 200 through the second end 22.

In addition, in this embodiment, the display device 99 further includes a third circuit board 300, a fourth circuit board 400, and a second connection circuit board 20. The third circuit board 300 corresponds to the first circuit board 100, the fourth circuit board 400 corresponds to the second circuit board 200, and the third circuit board 300 and the fourth circuit board 400 are coupled to the substrate of the display panel 600 through the connecting wire 32. 31 on. Specifically, the third circuit board 300 and the fourth circuit board 400 are respectively used to process the driving-related settings of the display device 99, such as providing and transmitting image display signals. The third circuit board 300 and the fourth circuit board 400 are coupled to the substrate 31 of the display panel 600 through the connecting wire 32. The connecting wire 32 can preferably be a chip on film substrate, on which a data (source) driver chip and other circuit elements can be disposed, but it is not limited to this.

The third circuit board 300 and the fourth circuit board 400 respectively have a plurality of pins or contacts. Preferably, there is an initial correspondence between the pins or contacts on the third circuit board 300 and the pins or contacts on the fourth circuit board 400. For example, the pins or contacts on the third circuit board 300 receive signals from The gate control signal of the power source has the above-mentioned initial corresponding relationship with the pins on the fourth circuit board 400 connected to the gate control signal line GL02 in the display panel 600. In another example, the pins of the third circuit board 300 receive the start signal (ST) or the common voltage (VCOM) of the frame from the signal source, There will be the above-mentioned initial corresponding relationship between it and the pins on the fourth circuit board 400 connected to the corresponding circuit units in the display panel 600. Preferably, the initial correspondence between the pins of the third circuit board 300 and the fourth circuit board 400 and the initial correspondence between the pins of the first circuit board 100 and the second circuit board 200 should be mutually corresponding or symmetrical. of.

The second connecting circuit board 20 has a third end 23 and a fourth end 24. In this embodiment, the second connecting circuit board 20 can preferably be a flexible printed circuit board (Flexible Printed Circuit), which is not only light, thin, and durable For the characteristics of bending and anti-interference, it is better to use conductive copper foil for circuit wiring. The second connecting circuit board 20 can preferably be a multilayer printed circuit with a via structure. The via structure is used to connect various layers of copper foil. Double-sided printed circuit, but not limited to this. Preferably, there are connectors or connection points at the third end 23 and the fourth end 24 of the second connection circuit board 20, respectively, and the second connection circuit board 20 can be respectively coupled to the third circuit board 300 through the third end 23 , Is coupled to the fourth circuit board 400 through the fourth terminal 24. In this preferred embodiment, the display device 99 further includes a control circuit board 500, which is respectively coupled to the first circuit board 100 and the third circuit board 300 through the connecting wires 33. Specifically, the control circuit board 500 is used to send gate control signals to drive the display device 99.

4A is a partial schematic diagram of another embodiment of the first connecting circuit board 10, and this embodiment can be replaced with the first connecting circuit board 10 shown in FIG. In this embodiment, the first terminal 21 of the first connecting circuit board 10 has a first contact 78 coupled to the first circuit board 100, and the second terminal 22 has a plurality of second terminals coupled to the second circuit board 200. Contact 79. In one embodiment, the first connection circuit board 10 may also have other contacts or empty contacts, such as the empty contact 80 shown in FIG. 4A, which can be used for additional expansion of the panel, but it is not considered This limit. It is worth noting that, in this embodiment, the contacts HC1 to HC8 of the second end 22 and the contact VGHD of the first end 21 are connected. Specifically, the first terminal 21 contacts The VGHD receives a high voltage from the first circuit board 100 and connects to the second terminal 22 contacts HC1~HC8 and transmits the signal to the display panel 600 to reduce the chance of display abnormality caused by the leakage of the thin film transistor. On the other hand, the contact part of the first end 21 of the first connection circuit board 10 is open, and the contact part of the second end 22 of the first connection circuit board 10 is connected to each other through the connection unit 77 The setting of so that the non-gate control signal sent from the control circuit board 50 is transmitted to the first circuit board 100. During the transmission process through the first connection circuit board 10, the aforementioned circuit path has changed, so that the non-gate control signal The signal is transmitted to the gate control signal line GL01 in the display panel 600 through the second circuit board 200.

4B is a partial schematic diagram of an embodiment of the second connection circuit board 20. In this embodiment, the third end 23 of the second connection circuit board 20 has a plurality of third contacts 73 coupled to the third circuit board 300, The four terminal 24 has a plurality of fourth contacts 74 coupled to the fourth circuit board 400, and the fourth terminal 24 has a plurality of fourth contacts 74 corresponding to the plurality of third contacts 73 of the third terminal 23. For example, in this embodiment, at the third end 23, the signal received from each pin of the third circuit board 300 represented by each contact is as follows: The representative received by the contact ST is for each screen The initial signal; what is received by the contact VCOM is a common voltage; what is received by the contact VSSQ and VSSG is a negative voltage, which can make the gate of the pixel better and the pixel can maintain the voltage better; The receiver of points HC1~HC8 is a high-frequency signal, which is used as a gate control signal to open the gate; the receiver of the contact points LC1 and LC2 is a low-frequency signal to reduce the voltage of the Q point; the receiver of the contact VGHD is high The voltage can be used in conjunction with the gate control signal received by the contacts HC1~HC8 to open the gate.

In this embodiment, the circuit connection and conduction between the third end 23 and the fourth end 24 of the second connection circuit board 20 are preferably based on the above-mentioned pins of the third circuit board 300 and the fourth circuit board 400 Therefore, each contact signal can be directly transmitted from the third circuit board 300 to the fourth circuit board 400. Furthermore, comparing FIG. 4B and FIG. 4A, the layout of each contact of the first end 21 and the connection relationship with the circuit on the first circuit board 100 is related to the layout of the plurality of third contacts 73 of the third end 23 and the third The connection relationship of the lines on the circuit board 300 is corresponding or even symmetrical. Therefore, a plurality of third contacts 73 corresponding to the first end 21 can be found at the third end 23. The arrangement of the plurality of second contacts 79 of the second end 22 and the connection relationship with the circuit on the second circuit board 200 and the arrangement of the plurality of fourth contacts 74 of the fourth end 24 and the connection relationship with the circuit on the fourth circuit board 400 Corresponding or even symmetrical, therefore, a plurality of fourth contacts 74 having a plurality of second contacts 79 corresponding to the second end 22 can be found at the fourth end 24. Therefore, in this embodiment, the main difference between the gate control loops on the left and right sides of the display device lies in the connection circuit between the first terminal 21 and the second terminal 22 on the first connection circuit board 10 and the second connection circuit on the second connection circuit board 20. The electrical wiring between the third terminal 23 and the fourth terminal 24 is different and asymmetrical.

In this embodiment, when the control circuit board 50 sends a gate control signal to drive the display panel 600, the first circuit board 100 and the third circuit board 300 receive the gate control signal respectively. By replacing the original connecting circuit board with the above-mentioned first connecting circuit board 10, the signal from the first circuit board 100 can be stopped to drive the gate drive circuit in the display panel, so that the defect of the gate drive circuit can be solved to affect the imaging picture. Qualitative issue. On the other hand, when the gate control signal is transmitted from the third circuit board 300 to the fourth circuit board 400 via the second connection circuit board 20, the circuit connection of the second connection circuit board 20 does not show a form of disconnection and mutual conduction. Therefore, the gate control signal can be transmitted to the gate control signal line GL02 of the gate driving circuit through the fourth circuit board 400. In other words, with this setting, the original double-sided gate drive setting can be changed to the single-sided gate drive setting, so that the gate circuit causing the problem no longer affects the image display.

Based on the description of the above several embodiments, the present invention provides a display device, in which when a problem occurs in the circuit in the display panel, the original connection circuit board can be replaced with the first connection circuit board 10, and the control circuit can be stopped. The signal of the board 500 drives the gate driving circuit in the display panel. It is also possible to use the unilateral drive to maintain the operation of the display device 99 through the arrangement of the first connecting circuit board 10 without rework and replacement of the substrate. With the above arrangement, a narrow frame and thin display device 99 can be realized. The present invention has been described by the above-mentioned related embodiments, but the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and equivalent arrangements included in the spirit and scope of the patent application are all included in the scope of the present invention.

99‧‧‧Display device

32‧‧‧Connecting line

600‧‧‧Display Panel

10‧‧‧First connection circuit board

31‧‧‧Substrate

21‧‧‧First end

100‧‧‧First circuit board

22‧‧‧Second end

200‧‧‧Second circuit board

GL01‧‧‧Multi-gate control signal line

Claims (10)

A display device includes: a display panel; a first circuit board coupled to the display panel; a second circuit board coupled to the display panel; a first connecting circuit board having: a first end, Coupled to the first circuit board; and a second terminal, coupled to the second circuit board; wherein, the pins of the first circuit board and the pins of the second circuit board have an initial corresponding relationship, the The first end and the second end of the first connection circuit board do not transmit the signals of the first circuit board and the second circuit board according to the initial corresponding relationship. The display device according to claim 1, wherein the second end of the first connection circuit board has a plurality of pins connected to each other. The display device according to claim 1, wherein the circuit from the first end to the second end of the first connection circuit board is at least partially open. The display device according to claim 1, further comprising: a third circuit board coupled to the display panel; a fourth circuit board coupled to the display panel; and a second connecting circuit board having: a The third end is coupled to the third circuit board; and a fourth end is coupled to the fourth circuit board; wherein the plurality of pins of the fourth end corresponds to the plurality of pins of the second end. The display device according to claim 4, further comprising: a control circuit board, respectively coupled to the first circuit board and the third circuit board. A display device includes: a display panel with: a gate drive circuit coupled to a plurality of gate control signal lines; a first circuit board coupled to the display panel; a second circuit board coupled to In the display panel; and, a first connection circuit board having: a first end coupled to the first circuit board; and a second end coupled to the second circuit board; wherein, the first The circuit board receives a non-gate control signal, and the non-gate control signal is transmitted to the gate control signal lines in the display panel through the first connection circuit board and the second circuit board. The display device according to claim 6, further comprising: a third circuit board coupled to the display panel; a fourth circuit board coupled to the display panel; and a second connection circuit board having: A third terminal is coupled to the third circuit board; and a fourth terminal is coupled to the fourth circuit board; wherein, the third circuit board receives a gate control signal, and the gate control signal passes through the The second connection circuit board and the fourth circuit board are transmitted to the gate control signal lines in the display panel. The display device according to claim 6, wherein the non-gate control signal is a signal that cannot drive the gate drive circuit of the display panel. The display device according to claim 7, wherein the gate control signal is a signal capable of driving the gate driving circuit of the display panel. The display device according to claim 7, further comprising: a control circuit board, respectively coupled to the first circuit board and the third circuit board.

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