Display module and display device

Abstract

The invention discloses a display module and a display device.The display module comprises a printed circuit board and a flexible connecting part which are electrically connected through a first connector, and the first connector comprises a first connecting part arranged on the printed circuit board and a second connecting part arranged on the flexible connecting part; the printed circuit board comprises a first transistor, the first connecting part comprises a first protection pin and a second protection pin which are located at the first position and the last position, and a power supply pin between the first protection pin and the second protection pin, the second connecting part comprises a plurality of second connecting pins which are inserted into the first connecting pins in a one-to-one correspondence mode, and the first protection pins are electrically connected to a first voltage end; the control electrode of the first transistor is electrically connected to the second protection pin, the first electrode receives the power supply signal, the second electrode is electrically connected to the power supply pin, and the first transistor is switched on when the first connecting part and the second connecting part are correspondingly plugged. The display module provided by the embodiment of the invention can stop supplying power to the power supply pins when the connector is poor in plugging.

Description

Technical Field

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

[0002] There are many defects in display screens during production inspection and assembly, among which a large proportion are caused by human operating errors. For example, in some cases, when the flexible connection components and the printed circuit board (PCB) and the flexible connection components cannot be directly bound and connected, they need to be connected with the help of connectors. If the connector interface is not plugged in properly or plugged in obliquely, it will cause a short circuit between the pins, which will cause irreversible damage to the entire display product, causing serious impact on the production yield and cost of the product. At present, the main preventive measure is to mark the auxiliary silk screen mark (Mark) line on one side of the connector where the plug end is set, and manually judge whether there is a poor plug-in. This method is not only inefficient, but also difficult to avoid defects caused by human negligence, and cannot effectively improve the production yield of connector plug-ins. Summary of the invention

[0003] In order to solve at least one of the above problems, the first aspect of the present disclosure provides a display module, comprising: a printed circuit board and a flexible connection component electrically connected via a first connector, the first connector comprising a first connection portion provided on the printed circuit board and a second connection portion provided on the flexible connection component,

[0004] The printed circuit board includes a first transistor,

[0005] The first connecting portion includes a plurality of first connecting pins arranged along a direction, the plurality of first connecting pins include a first protection pin at a first position, a second protection pin at a last position, and a power supply pin arranged between the first protection pin and the second protection pin.

[0006] The second connection part includes a plurality of second connection pins for correspondingly plugging with the first connection pins. When the first connection part and the second connection part are correspondingly plugged, the first protection pin and the second protection pin are electrically connected.

[0007] The first protection pin is electrically connected to the first voltage terminal, the control electrode of the first transistor is electrically connected to the second protection pin, the first electrode receives a power supply signal, and the second electrode is electrically connected to the power supply pin, and is configured to be turned on when the first connection part and the second connection part are correspondingly plugged in, and to be turned off when the first connection part and the second connection part are not correspondingly plugged in.

[0008] Optionally, the display module further includes a display panel, and the first end of the flexible connection component is bound and connected to the display panel, and the second end is electrically connected to the printed circuit board via the first connector.

[0009] Optionally, the plurality of second connecting pins include a third protection pin corresponding to the first protection pin, a fourth protection pin corresponding to the second protection pin, and a power supply connecting pin corresponding to the power supply pin.

[0010] The flexible connection component further includes a first connection wire, one end of which is electrically connected to the third protection pin, and the other end of which is electrically connected to the fourth protection pin, or

[0011] The flexible connection component includes a plurality of first pads arranged at the first end, the plurality of first pads include a first binding pad and a second binding pad, the display panel includes a plurality of second pads, the plurality of second pads include a third binding pad corresponding to the first binding pad and a fourth binding pad corresponding to the second binding pad,

[0012] The flexible connection component includes a first connection wire and a second connection wire, and the display panel includes a third connection wire.

[0013] The first end of the first connecting trace is electrically connected to the third protection pin, and the other end is electrically connected to the first binding pad. The first end of the second connecting trace is electrically connected to the fourth protection pin, and the other end is electrically connected to the second binding pad. The first end of the third connecting trace is electrically connected to the third binding pad, and the other end is electrically connected to the four binding pads.

[0014] Optionally, it also includes a display panel and a flexible circuit board, the first end of the flexible circuit board is bound and connected to the display panel, the second end is bound and connected to the first end of the flexible connecting component, and the second end of the flexible connecting component is electrically connected to the printed circuit board via the first connector.

[0015] Optionally, it also includes a display panel and a flexible circuit board,

[0016] One end of the flexible circuit board is bound and connected to the display panel, and the other end is electrically connected to the flexible connection component via the second connector.

[0017] The second connector includes a third connection portion provided on the flexible connection member and a fourth connection portion provided on the flexible circuit board.

[0018] The plurality of second connecting pins include a third protection pin corresponding to the first protection pin, a fourth protection pin corresponding to the second protection pin, and a power supply connecting pin corresponding to the power supply pin.

[0019] The third connection portion includes a plurality of third connection pins arranged along a direction, the plurality of third connection pins include a fifth protection pin at the first position and a sixth protection pin at the last position, and a power supply transmission pin arranged between the fifth protection pin and the sixth protection pin.

[0020] The fourth connection portion includes a plurality of fourth connection pins for one-to-one corresponding plugging with the third connection pins, the plurality of fourth connection pins including a seventh protection pin corresponding to the fifth protection pin and an eighth protection pin corresponding to the sixth protection pin,

[0021] The flexible circuit board further includes a first connecting wire, and the flexible connecting component further includes a second connecting wire, a third connecting wire and a fourth connecting wire.

[0022] The two ends of the first connecting line are electrically connected to the seventh protection pin and the eighth protection pin respectively, the two ends of the second connecting line are electrically connected to the third protection pin and the fifth protection pin respectively, the two ends of the third connecting line are electrically connected to the fourth protection pin and the sixth protection pin respectively, and the two ends of the fourth connecting line are electrically connected to the power supply connection pin and the power supply transmission pin respectively.

[0023] Optionally, the display module further includes a display panel.

[0024] The first end of the flexible connection component is electrically connected to the printed circuit board via the first connector, and the second end is electrically connected to the display panel via the second connector.

[0025] The second connector includes a third connection portion disposed on the flexible connection member and a fourth connection portion disposed on the display panel.

[0026] The plurality of second connecting pins include a third protection pin corresponding to the first protection pin, a fourth protection pin corresponding to the second protection pin, and a power supply connecting pin corresponding to the power supply pin.

[0027] The third connection portion includes a plurality of third connection pins arranged along a direction, the plurality of third connection pins include a fifth protection pin at the first position and a sixth protection pin at the last position, and a power supply transmission pin arranged between the fifth protection pin and the sixth protection pin.

[0028] The fourth connection portion includes a plurality of fourth connection pins for one-to-one corresponding plugging with the third connection pins, the plurality of fourth connection pins including a seventh protection pin corresponding to the fifth protection pin and an eighth protection pin corresponding to the sixth protection pin,

[0029] The display panel further includes a first connecting wire, and the flexible connecting component further includes a second connecting wire, a third connecting wire and a fourth connecting wire.

[0030] The two ends of the first connecting line are electrically connected to the seventh protection pin and the eighth protection pin respectively, the two ends of the second connecting line are electrically connected to the third protection pin and the fifth protection pin respectively, the two ends of the third connecting line are electrically connected to the fourth protection pin and the sixth protection pin respectively, and the two ends of the fourth connecting line are electrically connected to the power supply connection pin and the power supply transmission pin respectively.

[0031] Optionally, when the first connection portion is not plugged into the second connection portion correspondingly, the first protection pin and the corresponding second connection pin are not electrically connected, and / or the second protection pin and the corresponding second connection pin are not electrically connected.

[0032] Optionally, the second connecting portion includes a plurality of plugging grooves, the second connecting pins are arranged in the plugging grooves in a one-to-one correspondence, and the length of the second connecting pins is less than the length of the first connecting pins.

[0033] The ratio of the length of the second connecting pin to the length of the plugging groove is greater than or equal to 1:4 and less than or equal to 1:2; or

[0034] The first connecting portion includes a plurality of plug-in grooves, the first connecting pins are arranged in the plug-in grooves in a one-to-one correspondence, and the length of the first connecting pins is smaller than the length of the second connecting pins.

[0035] The ratio of the length of the first connecting pin to the length of the inserting groove is greater than or equal to 1:4 and less than or equal to 1:2.

[0036] Optionally, when the first transistor is a P-type transistor, the first voltage terminal is a ground terminal; when the first transistor is an N-type transistor, the printed circuit board also includes a power conversion circuit, which performs level conversion on the received external power signal and transmits it to the first voltage terminal as a first voltage signal.

[0037] A second aspect of the present disclosure provides a display device, comprising the display module described above.

[0038] The beneficial effects of the present disclosure are as follows:

[0039] In view of the existing problems, the present invention develops a display module and a display device, and sets protection pins at the first and last positions in the connector, and sets a first transistor on the printed circuit board, and sets a connection relationship between the protection pin, the first transistor and the power supply pin, so that when the connector is poorly plugged, one of the protection pins at the first and last positions is short-circuited and the power supply is stopped, thereby effectively protecting the display screen when poor installation occurs, improving the product yield, and having broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 A schematic diagram showing a display module according to an embodiment of the present disclosure;

[0042] Figure 2 A schematic diagram showing a first connector in a display module according to an embodiment of the present disclosure;

[0043] Figure 3 A schematic diagram showing a display module according to another embodiment of the present disclosure;

[0044] Figure 4 A simplified schematic diagram showing a first connector not plugged in according to an embodiment of the present disclosure;

[0045] Figure 5 The first connector in the display module is shown in Figure 4 The equivalent circuit diagram in the unplugged state shown;

[0046] Figure 6 A simplified schematic diagram showing a first connector correspondingly plugged in according to an embodiment of the present disclosure;

[0047] Figure 7 The first connector in the display module is shown in Figure 6 The equivalent circuit diagram corresponding to the plug-in state is shown;

[0048] Figure 8 A simplified schematic diagram showing a first connector not correspondingly plugged in according to an embodiment of the present disclosure;

[0049] Fig. 9 The first connector in the display module is shown in Figure 8 The equivalent circuit diagram shown does not correspond to the plugged state;

[0050] Fig.10 A schematic diagram showing a display module according to another embodiment of the present disclosure;

[0051] Fig.11 A schematic diagram showing a display module according to another embodiment of the present disclosure;

[0052] Fig.12 A schematic diagram showing a display module according to another embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0053] In order to more clearly illustrate the present disclosure, the present disclosure is further described below in conjunction with preferred embodiments and drawings. Similar components in the drawings are represented by the same or similar reference numerals. Those skilled in the art should understand that the content described below is illustrative rather than restrictive, and should not be used to limit the scope of protection of the present disclosure.

[0054] It should be noted that the terms “having”, “including”, “comprising”, etc. described in the present disclosure are all open-ended meanings, that is, when describing a module as “having”, “including” or “comprising” a first element, a second element and / or a third element, it means that the module includes other elements in addition to the first element, the second element and / or the third element. In addition, ordinal numbers such as “first”, “second” and “third” in the present disclosure are not intended to limit a specific order, but only to distinguish between various parts. In the present disclosure, when describing that layer A and layer B are “set in the same layer”, it means that layer A and layer B are made of the same material and process.

[0055] In order to solve one of the above problems, an embodiment of the present disclosure provides a display module, comprising: a printed circuit board and a flexible connection component electrically connected via a first connector, the first connector comprising a first connection portion provided on the printed circuit board and a second connection portion provided on the flexible connection component,

[0056] The printed circuit board includes a first transistor,

[0057] The first connecting portion includes a plurality of first connecting pins arranged along a direction, the plurality of first connecting pins include a first protection pin at a first position, a second protection pin at a last position, and a power supply pin arranged between the first protection pin and the second protection pin.

[0058] The second connection part includes a plurality of second connection pins for correspondingly plugging with the first connection pins. When the first connection part and the second connection part are correspondingly plugged, the first protection pin and the second protection pin are electrically connected.

[0059] The first protection pin is electrically connected to the first voltage terminal, the control electrode of the first transistor is electrically connected to the second protection pin, the first electrode receives a power supply signal, the second electrode is electrically connected to the power supply pin, and is configured to be turned on when the first connection part and the second connection part are correspondingly plugged in.

[0060] In this embodiment, a protection pin and a first transistor are provided, and a connection relationship between the protection pin, the first transistor and the power supply pin is set, so that when the connector is poorly plugged in, one of the protection pins located at the first position and the last position is short-circuited and the power supply is stopped, thereby effectively protecting the display screen when a poor installation occurs and improving the product yield.

[0061] In a specific example, refer to Figure 1As shown, the display module includes: a printed circuit board 20 and a flexible connecting component 30, and the printed circuit board 20 and the flexible connecting component 30 are electrically connected through a first connector. The first connector includes a first connecting portion 11 arranged on the printed circuit board 20 and a second connecting portion 12 arranged on the flexible connecting component 30.

[0062] Figure 2 A schematic diagram of the first connection part 11 and the second connection part 12 is shown as an example. In this example, the first connection part 11 is a plug-in end, which includes a plurality of exposed first connection pins, and the plug-in end is also called a "gold finger". The second connection part 12 is a plugged part, which includes a plug-in groove corresponding to the first connection pin, and a second connection pin is arranged in the plug-in groove, and the second connection pin is used to be plugged in one-to-one with the first connection pin. The first connection part 11 and the second connection part 12 can be electrically connected to the printed circuit board 20 and the flexible connection part 30 by welding, respectively. When plugging, the first connection part 11 is inserted into the second connection part 12, and when plugging correspondingly, the first connection pin and the second connection pin are electrically connected one-to-one.

[0063] It should be noted that although Figure 2 The figure shows a situation in which the first connection part 11 is a plug-in end and the second connection part 12 is a plugged part, but the present disclosure is not intended to be limited to this. Optionally, the first connection part 11 may also be a plugged part, and the second connection part 12 may be a plug-in end. As long as the electrical connection between the first connection pin on the first connection part 11 and the second connection pin on the second connection part 12 can be achieved through corresponding plug-in, it will not be repeated below.

[0064] In particular, in the embodiments of the present disclosure, referring to Figure 1 and Figure 2 As shown, the first connection portion 11 includes a plurality of first connection pins arranged in a direction, the arrangement direction intersecting with the direction to be plugged, and the direction may be a direction intersecting with the extension direction of the first connection pins. The plurality of first connection pins include a first protection pin 111 at the first position, a second protection pin 112 at the last position, and a power supply pin 110-V disposed between the first protection pin 111 and the second protection pin 112.

[0065] Among them, the power supply pin 110-V refers to a pin that provides a high-level power supply signal. Usually, the display driver chip (DDIC) of the display panel can start working under the action of this power supply signal, and the power conversion circuit inside or outside the driver chip can perform further level conversion based on the power supply signal to provide a higher amplitude or lower amplitude operating voltage to the pixel driving circuit and / or gate driving circuit in the display panel.

[0066] It should be noted that for ease of illustration, Figure 1The power supply pin 110-V is shown as one pin, but those skilled in the art should understand that this is only exemplary. In actual applications, the power supply pin 110-V can be multiple pins, and these multiple pins provide the same power supply voltage, that is, the power supply pin 110-V can be one or more, which will not be repeated in this article.

[0067] In particular, the printed circuit board 20 includes a first transistor T1. In this example, the first protection pin 111 is electrically connected to the first voltage terminal, the control electrode of the first transistor T1 is electrically connected to the second protection pin 112, the first electrode receives a power supply signal, the second electrode is electrically connected to the power supply pin 110-V, and the first transistor T1 is configured to be turned on when the first connection portion 11 and the second connection portion 12 are correspondingly plugged in, and turned off when the first connection portion 11 and the second connection portion 12 are not correspondingly plugged in.

[0068] exist Figure 1 In the example shown, the first transistor T1 is a P-type transistor, and the first voltage terminal is the ground terminal GND, so that when the first connection portion 11 and the second connection portion 12 are correspondingly plugged in, the first transistor T1 receives a signal from the first voltage terminal GND from the second protection pin 112 and is turned on, thereby transmitting the power supply signal received by the power output port VCC OUT to the power supply pin 110-V, and when the first transistor T1 is turned off, the path between the power output port VCC OUT and the power supply pin 110-V is disconnected, so that the power supply signal cannot enter the display driver chip and other circuits that can receive the power supply signal from the power supply pin 110-V.

[0069] It should be noted that the first transistor T1 is not limited to a P-type transistor, that is, the first transistor T1 can also be an N-type transistor. When it is an N-type transistor, the first voltage terminal needs to provide a high-level signal so that the control electrode of the first transistor T receives the signal from the first voltage terminal and turns on.

[0070] Optionally, when the first transistor T1 is an N-type transistor, the printed circuit board further includes a power conversion circuit, which performs level conversion on the received external power signal and transmits the signal to the first voltage terminal as a first voltage signal.

[0071] Through the above arrangement, when the first connection part 11 and the second connection part 12 have completed the corresponding plug-in, based on the conduction of the first transistor T1, power can be normally supplied to the power supply pin 110-V, so that the chip or circuit electrically connected to the power supply pin 110-V receives the power supply signal and works normally; when the first connection 11 and the second connection 12 are not assembled normally, that is, when a poor plug-in such as an oblique plug-in occurs, because the first transistor T1 cannot be turned on, even if a pin-to-pin short circuit occurs between the first connection pin and the second connection pin due to a poor plug-in such as an oblique plug-in, the high-voltage power supply signal cannot be introduced into any pin, thereby avoiding damage to the display panel due to human operating errors, thereby effectively improving the product yield.

[0072] It is worth emphasizing that the embodiments of the present disclosure do not need to wait until a short circuit occurs between pins due to poor connection before disconnecting the pins. This can completely avoid the risk of short-circuit power supply damage to the display panel caused by a short circuit in the power supply signal when a poor connection occurs.

[0073] Continue to refer to Figure 1 As shown, in this example, the display module also includes a display panel 40 , a first end of the flexible connection component 30 is bound and connected to the display panel 40 , and a second end is electrically connected to the printed circuit board 20 via a first connector.

[0074] In this case, the flexible connection member 30 is a flexible printed circuit (FPC). Since the flexible printed circuit can be directly bonded and connected to the display substrate through a bonding process, there is no need to provide a connector at the other end of the flexible connection member 30 .

[0075] Reference Figure 1 As shown, in this example, the second connection pins of the second connection part 12 include a third protection pin 123 corresponding to the first protection pin 111, a fourth protection pin 124 corresponding to the second protection pin, and a power supply connection pin 120-V corresponding to the power supply pin.

[0076] The flexible connection component 30 also includes a first connection trace, one end of which is electrically connected to the third protection pin 123, and the other end of which is electrically connected to the fourth protection pin 124. When the first connection portion 11 and the second connection portion 12 are correspondingly plugged in, the first protection pin 111 and the third protection pin 123 are correspondingly electrically connected, and the second protection pin 112 and the fourth protection pin 124 are correspondingly electrically connected, so that the first protection pin 111 and the second protection pin 112 are electrically connected, thereby transmitting the signal of the first voltage terminal GND to the control electrode of the first transistor T1.

[0077] It should be noted that Figure 1The first connection line shown in the figure will cross other wirings used for both ends of the connector in the flexible connection component 30 when bridging the third protection pin 123 and the fourth protection pin 124. In this case, the flexible connection component 30 needs to be set as a double-layer board.

[0078] Optionally, considering the wiring difficulty and thinning requirements of the flexible connection component 30 , connection traces for lateral connection may be provided in the display panel 40 .

[0079] Specific reference Figure 3 As shown, the flexible connection component 30 includes a plurality of first pads arranged at the first end, the plurality of first pads include a first binding pad and a second binding pad, the display panel 40 includes a plurality of second pads, the plurality of second pads include a third binding pad corresponding to the first binding pad and a fourth binding pad corresponding to the second binding pad. The correspondence means that when the flexible connection component 30 and the display panel 40 are correspondingly bound, the first binding pad is bound to the third binding pad, and the second binding pad is bound to the fourth binding pad.

[0080] The flexible connection component 30 includes a first connection trace and a second connection trace, and the display panel includes a third connection trace, a first end of the first connection trace is electrically connected to the third protection pin, and the other end is electrically connected to the first binding pad, a first end of the second connection trace is electrically connected to the fourth protection pin, and the other end is electrically connected to the second binding pad, a first end of the third connection trace is electrically connected to the third binding pad, and the other end is electrically connected to the fourth binding pad.

[0081] Of course, the flexible connection component 30 is not limited to a flexible circuit board, and it can also be a flexible connection component capable of signal transmission, such as a flat cable. When it is a flat cable, or other flexible connection component 30 that cannot be bound to the display substrate through a binding process, it needs to be connected at the other end with the aid of a second connector. Other application examples will be described below.

[0082] The following further combines Figures 4 to 9 The structure of an embodiment of the present disclosure is described by showing different plug-in states of the first connector in the display module through a simplified view of the first connector and an equivalent circuit diagram of the connector-related components when the first connector is in different plug-in states.

[0083] When analyzing the connection status, Figure 1 The example is used to illustrate, of course Figure 1 and Figure 2 The principle is the same and will not be described in detail below.

[0084] Specifically, refer to Figure 4As shown, the first connection part 11 is a plug-in end, which includes a plurality of first connection pins in the form of gold fingers, and the second connection part 12 is a plugged part, which includes a plurality of plug-in grooves 120, and the length of each plug-in groove 120 can be equal to the length of the first connection pin, or can be slightly different from the length of the first connection pin. A plurality of second connection pins are arranged in the plug-in grooves 120, and the length of the second connection pins is less than the length of the plug-in grooves 120, and the length of the second connection pins should be less than the length of the first connection pins.

[0085] Reference Figure 1 , Figure 4 and Figure 5 As shown, when the first connection portion 11 provided on the printed circuit board 20 and the second connection portion 12 provided on the flexible connection component 30 are in a separated state, i.e., in an unplugged state, the first protection pin 111 and the second protection pin 112 are disconnected, and thus the switch between the first voltage terminal GND and the first transistor T1 is disconnected, and at the same time, the switch between the second electrode of the first transistor T1 and the power input terminal VCC IN in the display panel 40 is disconnected, so that the first transistor T1 is turned off.

[0086] In this state, the power supply signal of the power output terminal VCC OUT cannot be provided to the power input terminal VCC IN of the display panel 40 .

[0087] Reference Figure 1 , Figure 6 and Figure 7 As shown, when the first connection portion 11 provided on the printed circuit board 20 is correspondingly plugged with the second connection portion 12 provided on the flexible connection component 30, the first connection pin and the second connection pin are plugged one by one, so the first protection pin 111 is electrically connected to the third protection pin 123, and the second protection pin 112 is electrically connected to the fourth protection pin 124, that is, the first protection pin 111 is electrically connected to the second protection pin 112, so the switch between the first voltage terminal GND and the first transistor T1 is closed, and at the same time, the switch between the second electrode of the first transistor T1 and the power input terminal VCC IN in the display panel 40 is closed, so that the first transistor T1 is turned on.

[0088] In this state, the power supply signal of the power output terminal VCC OUT can be normally provided to the power input terminal VCC IN of the display panel 40 .

[0089] Reference Figure 1 , Figure 8 and Fig. 9 As shown, when the first connection portion 11 provided on the printed circuit board 20 and the second connection portion 12 provided on the flexible connection component 30 are not plugged in correspondingly, that is, the two are plugged in but not plugged in correspondingly, the first connection pin and the second connection pin are plugged in obliquely.

[0090] Reference Figure 8 As shown, the length of the first connection pin is greater than that of the second connection pin. When an oblique insertion occurs, there is a certain oblique insertion angle between the first connection portion 11 and the second connection portion 12. By setting the first protection pin 111 and the second protection pin 112 at the first and last positions of the first connection pins arranged in one direction, when an oblique insertion occurs, due to the oblique insertion angle, at least one of the first protection pin 111 and the second protection pin 112 will be disconnected from the corresponding second connection pin, thereby disconnecting the switch between the first protection pin 111 and the second protection pin 112. Of course, as Figure 8 As shown, when the corresponding connection is not made, due to poor oblique insertion, except for the second protection pin 112 which is located at the last position and is obliquely inserted and misaligned, other first connection pins are short-circuited due to oblique insertion.

[0091] Optionally, the ratio of the length of the second connection pin to the length of the insertion groove 120 is greater than or equal to 1:4 and less than or equal to 1:2. Within this range, when an insertion abnormality such as oblique insertion occurs, at least one of the first protection pin 111 or the second protection pin 112 can be disconnected from the corresponding second connection pin, thereby ensuring that the first transistor T1 is turned off, thereby protecting the display driver chip and / or various circuit structures in the display panel.

[0092] Alternatively, the first connection portion may be the plugged portion and the second connection portion may be the plug-in end. In this case, the first connection portion includes a plurality of plug-in grooves, and the first connection pins are arranged one-to-one in the plug-in grooves. The length of the first connection pin is less than the length of the second connection pin, and the ratio of the length of the first connection pin to the length of the plug-in groove is greater than or equal to 1:4 and less than or equal to 1:2.

[0093] like Fig. 9 As shown, Figure 8 When there is no corresponding connection as shown, the first protection pin 111 is electrically connected to the third protection pin 123, and the second protection pin 112 is disconnected from the fourth protection pin 124, that is, the first protection pin 111 is disconnected from the second protection pin 112, so the switch between the first voltage terminal GND and the first transistor T1 is disconnected, so that the first transistor T1 is turned off.

[0094] In this state, although the switch between the second electrode of the first transistor T1 and the power input terminal VCCIN in the display panel 40 is closed, the power supply signal of the power output terminal VCC OUT cannot be provided to the display panel 40 because the first transistor T1 is turned off.

[0095] It can be seen that through the above arrangement, because two protection pins are included at the first and last positions of a row of connection pins, the inclination angle generated when the connector is poorly plugged in is utilized to disconnect the protection pins, so that the first transistor T1 arranged at the power supply signal supply end of the printed circuit board cannot be turned on, so that when poor plugging occurs, the power supply signal cannot be provided to the short-circuit pin in the display panel, thereby protecting the display panel and improving the yield of the display product.

[0096] In some other optional embodiments, more than one flexible wiring component is included between the printed circuit board 20 and the display panel 40 .

[0097] Reference Fig.10 As shown, the display module includes the printed circuit board 20 described in the above embodiment, a flexible connecting component 30, and a first connector electrically connecting the printed circuit board 20 with the flexible connecting component 30, and the first connector includes a first connecting portion 11 arranged on the printed circuit board 20 and a second connecting portion 12 arranged on the flexible connecting component 30.

[0098] The structure of the first connector and the printed circuit board 20 are the same as those in the above embodiment, and will not be described again.

[0099] The difference is that the display module includes a display panel 40 and a flexible circuit board 50 .

[0100] In this example, the flexible connection component 30 is also a flexible circuit board, and the flexible connection component 30 can be directly bound and connected to the flexible circuit board 50. Specifically, the first end of the flexible circuit board 50 is bound and connected to the display panel 40, and the second end is bound and connected to the first end of the flexible connection component 30, and the second end of the flexible connection component 30 is electrically connected to the printed circuit board 20 via the first connector.

[0101] It should be noted that, in this example, the lateral connection line that ultimately forms the electrical connection between the first protection pin 111 and the second protection pin 112 is arranged in the flexible circuit board 50, and the flexible connection component 30 can be arranged as a single-layer board. In fact, the layout of the connection line between the first protection pin 111 and the second protection pin 112 is not limited to this. One of the wiring methods can be as follows: Figure 1 As shown, it is directly formed on the flexible connection component 30. Another way is to set the cross-connection traces on the display panel 40, so that the flexible connection component 30 and the flexible circuit board 50 only need to arrange the traces between the pins and the pads, so that the flexible connection component 30 and the flexible circuit board 50 can both be set as single-layer boards.

[0102] In another alternative embodiment, referring to Fig.11As shown, when two flexible connectors are required for connecting the display module from the printed circuit board to the display panel, if the flexible connection component 30 connecting the printed circuit board 20 is a flat cable, or other connection components that cannot be electrically connected using a binding process, two connectors will be required in the display module.

[0103] Specifically, refer to Fig.11 As shown, in addition to the printed circuit board 20 , the flexible connection component 30 , and the first connector connecting the printed circuit board 20 and the flexible connection component 30 mentioned above, the display module also includes a display panel 40 and a flexible circuit board 50 .

[0104] One end of the flexible circuit board 50 is bound and connected to the display panel 40, and the other end is electrically connected to the flexible connection component 30 via the second connector. The second connector includes a third connection portion 13 disposed on the flexible connection component 30 and a fourth connection portion 14 disposed on the flexible circuit board 50.

[0105] The plurality of second connection pins in the second connection portion 12 include a third protection pin 123 corresponding to the first protection pin 111 , a fourth protection pin 124 corresponding to the second protection pin 112 , and a power supply connection pin 120 -V corresponding to the power supply pin 110 -V.

[0106] The third connection portion 13 includes a plurality of third connection pins arranged in one direction, the plurality of third connection pins including a fifth protection pin 135 located at the first position, a sixth protection pin 136 located at the last position, and a power transmission pin 130-V arranged between the fifth protection pin 135 and the sixth protection pin 136. The number of the power transmission pins 130-V corresponds to the number of the power connection pins 120-V.

[0107] The fourth connection portion includes a plurality of fourth connection pins for plugging into the third connection pins in a one-to-one correspondence, and the plurality of fourth connection pins include a seventh protection pin 147 corresponding to the fifth protection pin 135 and an eighth protection pin 148 corresponding to the sixth protection pin 136 .

[0108] The flexible circuit board 50 also includes a first connection line, and the flexible connection component 30 also includes a second connection line, a third connection line, and a fourth connection line. The two ends of the first connection line are electrically connected to the seventh protection pin 147 and the eighth protection pin 148, respectively, the two ends of the second connection line are electrically connected to the third protection pin 123 and the fifth protection pin 135, respectively, the two ends of the third connection line are electrically connected to the fourth protection pin 124 and the sixth protection pin 136, respectively, and the two ends of the fourth connection line are electrically connected to the power supply connection pin 120-V and the power supply transmission pin 130-V, respectively.

[0109] In another optional embodiment, when the flexible connecting component is a flat cable or other flexible connecting parts that cannot be electrically connected through a binding process, and the signal transmission between the printed circuit board and the display panel needs to be achieved by connecting two flexible connecting parts, the display module needs to include two connectors.

[0110] Specifically, refer to Fig.12 As shown, in addition to the printed circuit board 20 , the flexible connection component 30 , and the first connector connecting the printed circuit board 20 and the flexible connection component 30 mentioned above, the display module also includes a display panel 40 .

[0111] A first end of the flexible connection member 30 is electrically connected to the printed circuit board 20 via a first connector, and a second end of the flexible connection member 30 is electrically connected to the display panel 40 via a second connector.

[0112] The second connector includes a third connection portion provided on the flexible connection member 30 and a fourth connection portion provided on the display panel.

[0113] The plurality of second connection pins in the second connection portion 12 include a third protection pin 123 corresponding to the first protection pin 111 , a fourth protection pin 124 corresponding to the second protection pin 112 , and a power supply connection pin 120 -V corresponding to the power supply pin 110 -V.

[0114] The third connection portion includes a plurality of third connection pins arranged along the above direction, the plurality of third connection pins including a fifth protection pin 135 at the first position and a sixth protection pin 136 at the last position, and a power supply transmission pin 130-V arranged between the fifth protection pin 135 and the sixth protection pin 136.

[0115] The fourth connection portion includes a plurality of fourth connection pins for plugging into the third connection pins in a one-to-one correspondence, and the plurality of fourth connection pins include a seventh protection pin 147 corresponding to the fifth protection pin 135 and an eighth protection pin 148 corresponding to the sixth protection pin 136 .

[0116] The display panel 40 also includes a first connecting line, and the flexible connecting component 30 also includes a second connecting line, a third connecting line and a fourth connecting line. The two ends of the first connecting line are respectively electrically connected to the seventh protection pin 147 and the eighth protection pin 148, the two ends of the second connecting line are respectively electrically connected to the third protection pin 123 and the fifth protection pin 135, the two ends of the third connecting line are respectively electrically connected to the fourth protection pin 124 and the sixth protection pin 136, and the two ends of the fourth connecting line are respectively electrically connected to the power supply connection pin 120-V and the power supply transmission pin 130-V.

[0117] Of course, because double-layer wiring is inconvenient for the flat cable, when the flexible connection component 30 is a flat cable, it is best to use the display panel 40 for connection wiring. However, those skilled in the art should understand that if the flexible connection component that needs to be provided with two connectors can use multi-layer wiring or cross wiring to complete the wiring, the connection line in this embodiment can also be as shown in FIG. Figure 1 As shown, it is arranged in the flexible connection component 30. In addition, the display driver chip can be bound to the display panel using a COP (Chip on Pi) process or a COG (Chip on Glass) process, which will not be described in detail herein.

[0118] It should be noted that the on / off relationship of the second connector when correspondingly plugged in and not correspondingly plugged in is the same as the principle of the first connector in the above embodiment, and will not be described in detail herein.

[0119] Based on the same inventive concept, an embodiment of the present disclosure further provides a display device, which implements the display module described above.

[0120] Since the display module included in the display device provided in the embodiment of the present disclosure corresponds to the display modules provided in the above-mentioned embodiments, the previous implementation is also applicable to the use method provided in this embodiment and will not be described in detail in this embodiment.

[0121] In this embodiment, the display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a car display, a digital photo frame or a navigator. By loading the above display module, the display device can not transmit a power supply signal to the display panel and its driver chip when a poor connection occurs, thereby protecting the display product from short-circuit damage and improving the product yield.

[0122] In view of the existing problems, the present invention develops a display module and a display device, and sets protection pins at the first and last positions in the connector, and sets a first transistor on the printed circuit board, and sets a connection relationship between the protection pin, the first transistor and the power supply pin, so that when the connector is poorly plugged, one of the protection pins at the first and last positions is short-circuited and the power supply is stopped, thereby effectively protecting the display screen when poor installation occurs, improving the product yield, and having broad application prospects.

[0123] Obviously, the above embodiments of the present disclosure are merely examples for clearly illustrating the present disclosure, and are not limitations on the implementation methods of the present disclosure. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present disclosure are still within the protection scope of the present disclosure.

Claims

1. A display module, characterized in that: include: A printed circuit board and a flexible connection member electrically connected via a first connector, wherein the first connector includes a first connection portion disposed on the printed circuit board and a second connection portion disposed on the flexible connection member, The printed circuit board includes a first transistor, The first connection portion includes a plurality of first connection pins arranged along a direction, the plurality of first connection pins include a first protection pin at a first position, a second protection pin at a last position, and a power supply pin arranged between the first protection pin and the second protection pin. The second connection portion includes a plurality of second connection pins for correspondingly plugging with the first connection pins. When the first connection portion and the second connection portion are correspondingly plugged, the first protection pin and the second protection pin are electrically connected. The first protection pin is electrically connected to a first voltage terminal, the control electrode of the first transistor is electrically connected to the second protection pin, the first electrode receives a power supply signal, and the second electrode is electrically connected to the power supply pin, and is configured to be turned on when the first connection part and the second connection part are correspondingly plugged in, and to be turned off when the first connection part and the second connection part are not correspondingly plugged in.

2. The display module according to claim 1, characterized in that: It also includes a display panel, wherein the first end of the flexible connection component is bound and connected to the display panel, and the second end is electrically connected to the printed circuit board via the first connector.

3. The display module according to claim 2, characterized in that: The plurality of second connecting pins include a third protection pin corresponding to the first protection pin, a fourth protection pin corresponding to the second protection pin, and a power supply connecting pin corresponding to the power supply pin, Wherein, the flexible connection component further includes a first connection wire, one end of the first connection wire is electrically connected to the third protection pin, and the other end is electrically connected to the fourth protection pin, or The flexible connection component includes a plurality of first pads arranged at the first end, the plurality of first pads include a first binding pad and a second binding pad, the display panel includes a plurality of second pads, the plurality of second pads include a third binding pad corresponding to the first binding pad and a fourth binding pad corresponding to the second binding pad, The flexible connection component includes a first connection wire and a second connection wire, and the display panel includes a third connection wire. The first end of the first connecting trace is electrically connected to the third protection pin, and the other end is electrically connected to the first binding pad. The first end of the second connecting trace is electrically connected to the fourth protection pin, and the other end is electrically connected to the second binding pad. The first end of the third connecting trace is electrically connected to the third binding pad, and the other end is electrically connected to the four binding pads.

4. The display module according to claim 1, characterized in that: It also includes a display panel and a flexible circuit board, wherein a first end of the flexible circuit board is bound and connected to the display panel, a second end is bound and connected to a first end of the flexible connection component, and a second end of the flexible connection component is electrically connected to the printed circuit board via the first connector.

5. The display module according to claim 1, characterized in that: It also includes a display panel and a flexible circuit board. The first end of the flexible circuit board is bound and connected to the display panel, and the second end is electrically connected to the flexible connection component via a second connector. The second connector includes a third connection portion provided on the flexible connection member and a fourth connection portion provided on the flexible circuit board. The plurality of second connecting pins include a third protection pin corresponding to the first protection pin, a fourth protection pin corresponding to the second protection pin, and a power supply connecting pin corresponding to the power supply pin, The third connection portion includes a plurality of third connection pins arranged along the direction, the plurality of third connection pins include a fifth protection pin located at the first position and a sixth protection pin located at the last position, and a power supply transmission pin arranged between the fifth protection pin and the sixth protection pin, The fourth connection portion includes a plurality of fourth connection pins for plugging with the third connection pins in a one-to-one correspondence, and the plurality of fourth connection pins include a seventh protection pin corresponding to the fifth protection pin and an eighth protection pin corresponding to the sixth protection pin. The flexible circuit board further includes a first connecting wire, and the flexible connecting component further includes a second connecting wire, a third connecting wire and a fourth connecting wire. The two ends of the first connecting line are electrically connected to the seventh protection pin and the eighth protection pin respectively, the two ends of the second connecting line are electrically connected to the third protection pin and the fifth protection pin respectively, the two ends of the third connecting line are electrically connected to the fourth protection pin and the sixth protection pin respectively, and the two ends of the fourth connecting line are electrically connected to the power supply connection pin and the power supply transmission pin respectively.

6. The display module according to claim 1, characterized in that: Also includes a display panel, The first end of the flexible connection member is electrically connected to the printed circuit board via the first connector, and the second end is electrically connected to the display panel via the second connector. The second connector includes a third connection portion disposed on the flexible connection member and a fourth connection portion disposed on the display panel. The plurality of second connecting pins include a third protection pin corresponding to the first protection pin, a fourth protection pin corresponding to the second protection pin, and a power supply connecting pin corresponding to the power supply pin, The third connection portion includes a plurality of third connection pins arranged along the direction, the plurality of third connection pins include a fifth protection pin located at the first position and a sixth protection pin located at the last position, and a power supply transmission pin arranged between the fifth protection pin and the sixth protection pin, The fourth connection portion includes a plurality of fourth connection pins for plugging with the third connection pins in a one-to-one correspondence, and the plurality of fourth connection pins include a seventh protection pin corresponding to the fifth protection pin and an eighth protection pin corresponding to the sixth protection pin. The display panel further includes a first connecting wire, and the flexible connecting component further includes a second connecting wire, a third connecting wire and a fourth connecting wire. The two ends of the first connecting line are electrically connected to the seventh protection pin and the eighth protection pin respectively, the two ends of the second connecting line are electrically connected to the third protection pin and the fifth protection pin respectively, the two ends of the third connecting line are electrically connected to the fourth protection pin and the sixth protection pin respectively, and the two ends of the fourth connecting line are electrically connected to the power supply connection pin and the power supply transmission pin respectively.

7. The display module according to claim 1, characterized in that: When the first connection portion is not plugged into the second connection portion correspondingly, the first protection pin and the corresponding second connection pin are not electrically connected, and / or the second protection pin and the corresponding second connection pin are not electrically connected.

8. The display module according to claim 7, characterized in that: The second connecting portion includes a plurality of plugging grooves, the second connecting pins are arranged in the plugging grooves in a one-to-one correspondence, and the length of the second connecting pins is smaller than the length of the first connecting pins. The ratio of the length of the second connecting pin to the length of the plugging groove is greater than or equal to 1:4 and less than or equal to 1:2; or The first connecting portion includes a plurality of plugging grooves, the first connecting pins are arranged in the plugging grooves in a one-to-one correspondence, and the length of the first connecting pins is smaller than the length of the second connecting pins. The ratio of the length of the first connecting pin to the length of the inserting groove is greater than or equal to 1:4 and less than or equal to 1:

2.

9. The display module according to claim 7, characterized in that: When the first transistor is a P-type transistor, the first voltage terminal is a ground terminal. When the first transistor is an N-type transistor, the printed circuit board also includes a power conversion circuit, which converts the level of the received external power signal and transmits it to the first voltage terminal as a first voltage signal.

10. A display device, characterized in that: A display module comprising any one of claims 1-9.

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