A display device

Abstract

The application provides a display device. The display device comprises a display module and a knob. The display module comprises a display panel, a flexible circuit board and a plurality of first conductive members arranged at intervals. The knob comprises a second conductive member. The flexible circuit board is provided with a timing control chip. When the second conductive member and a first conductive member form a conductive loop, the timing control chip outputs corresponding display picture data according to the current value of the conductive loop. The display device provided by the application discards the participation of the terminal and only needs the participation of the display module itself to realize display picture switching.

Description

Technical Field

[0001] This invention relates to the field of display technology. More specifically, it relates to a display device. Background Technology

[0002] Currently, when using display products such as in-vehicle central control screens, users often need to switch between different function pages. The two most common ways to switch display screens are: one is through touch, and the other is through physical buttons.

[0003] However, in related technologies, the switching of display screens usually requires the transmission of signals from the terminal (such as the vehicle host). That is, touch signals or electrical signals generated by buttons are transmitted to the terminal. After the terminal completes the instruction processing, it sends the corresponding display screen data to the display module through the corresponding connection lines in order to finally control the switching of display screens. This results in a more complex circuit structure for the display device and is prone to signal delay. Summary of the Invention

[0004] The purpose of this invention is to provide a display device to solve the problem that the circuit structure of existing display devices is complex and easily causes signal delay.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides a display device, including a display module and a knob. The display module includes a display panel, a flexible circuit board and a plurality of first conductive elements spaced apart. The knob includes a second conductive element. The flexible circuit board is provided with a timing control chip. The timing control chip is used to output corresponding display screen data according to the current value of the conductive circuit when it detects that the second conductive element and a first conductive element are connected to form a conductive circuit.

[0006] Optionally, the display panel is arc-shaped, surrounds the knob, and the center of curvature of the display panel coincides with the central axis of the knob.

[0007] Optionally, the flexible circuit board includes a plurality of first conductive ends connected to the first conductive element in a one-to-one correspondence and a second conductive end connected to the first end of the second conductive element. A voltage source is connected between the first conductive end and the second conductive end. The second end of the second conductive element is configured to contact or separate from a first conductive element as the knob rotates.

[0008] Optionally, the resistance values ​​of each of the first conductive elements are different.

[0009] Optionally, the second end of the second conductive element is configured to compress the first conductive element to cause it to undergo elastic deformation when it contacts and conducts electricity with the first conductive element.

[0010] Optionally, the second end of the second conductive member is provided with a first protrusion or a first recess, and the first conductive member is provided with a second recess for engaging with the first protrusion or a second protrusion for engaging with the first recess.

[0011] Optionally, the voltage source is integrated into the flexible circuit board.

[0012] Optionally, the display device further includes: a support mechanism for carrying the display module, wherein the first conductive element is disposed in the support mechanism and there is a gap between the first conductive element and the support mechanism.

[0013] Optionally, it further includes: a plurality of first conductive connecting lines, respectively used to connect a plurality of first conductive elements and a plurality of first conductive terminals; and a second conductive connecting line, used to connect a first end of the second conductive element and a second conductive terminal.

[0014] Optionally, the display device is a vehicle-mounted display device.

[0015] The beneficial effects of this invention are as follows: The display device provided by this invention uses a timing control chip to control the knob to switch display images when it detects that a second conductive element and a first conductive element have formed a conductive circuit. The timing control chip outputs corresponding display image data based on the current value of the conductive circuit. The timing control chip has a display image data channel. When the user rotates the knob, different conductive circuits are formed when the second conductive element connects to different first conductive elements. The timing control chip determines the conductive circuit based on the monitored current value and thus captures the corresponding display image data and outputs it to the display panel. Therefore, this application eliminates the need for a terminal; only the display module itself is required to switch display images, simplifying the circuit structure of the display device and avoiding signal delay. Attached Figure Description

[0016] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a front view of the display device provided in an embodiment of the present invention.

[0018] Figure 2 Show Figure 1 A schematic diagram of the cross-section obtained along the CC section line; Figure 3 This figure shows a rear view of a display device provided in an embodiment of the present invention; Figure 4 Show Figure 3 A schematic diagram of the cross-section obtained along the BB section line; Figure 5 This invention provides another rear view of the display device according to an embodiment of the invention. Figure 6 Show Figure 5 A schematic diagram of the cross-section obtained along the BB section line. Detailed Implementation

[0019] In this invention, "on," "formed on," and "set on" can mean that one layer is directly formed or set on another layer, or that one layer is indirectly formed or set on another layer, meaning that there are other layers between the two layers.

[0020] It should be noted that although the terms "first," "second," etc., may be used herein to describe various components, members, elements, regions, layers, and / or portions, these components, members, elements, regions, layers, and / or portions should not be limited by these terms. Rather, these terms are used to distinguish one component, member, element, region, layer, and / or portion from another. Thus, for example, the first component, first member, first element, first region, first layer, and / or first portion discussed below may be referred to as a second component, second member, second element, second region, second layer, and / or second portion without departing from the teachings of the invention.

[0021] Reference Figures 1 to 6 This invention provides a display device, including a display module and a knob 1. The display module includes a display panel 2, a flexible circuit board 3, and a plurality of spaced first conductive elements 4. The knob 1 includes a second conductive element 5. The flexible circuit board 3 is provided with a timing control chip 6. The timing control chip 6 is used to output corresponding display screen data according to the current value of the conductive circuit when it is detected that the second conductive element 5 and a first conductive element 4 are connected to form a conductive circuit.

[0022] In this embodiment, when the timing control chip 6 detects that the second conductive element 5 and a first conductive element 4 have formed a conductive circuit, it outputs corresponding display screen data based on the current value of the conductive circuit to control the knob 1 to switch the display screen. The timing control chip 6 has a display screen data channel. When the user rotates the knob 1, different conductive circuits are formed when the second conductive element 5 is connected to different first conductive elements 4. The timing control chip 6 determines the conductive circuit based on the monitored current value and thus captures the corresponding display screen data and outputs it to the display panel 2. Therefore, this application eliminates the need for terminal involvement; only the display module itself needs to participate to achieve display screen switching, simplifying the circuit structure of the display device and avoiding signal delay.

[0023] Furthermore, the knob 1 in this application is a solid structure. The knob 1 is independently set and the second conductive element 5 and the first conductive element 4 are connected or disconnected by rotation. The solid structure can provide clear operation feedback and its reliability is much greater than that of electronic touch control, which is conducive to improving the reliability and service life of the display device.

[0024] In one embodiment, the display panel 2 is arc-shaped, surrounds the knob 1, and the center of curvature of the display panel coincides with the central axis of the knob 1. The knob 1 cleverly utilizes the shape advantage of the display panel 2, placing the knob 1 in the space surrounded by the display panel 2, so that the operating areas of the display panel 2 and the knob 1 cooperate with each other in space, making the display panel 2 and the knob 1 more compact in structure, thereby saving space.

[0025] In other embodiments, the display panel may have other shapes, such as elliptical arcs, rings, fan shapes, or square shapes. This embodiment does not limit this.

[0026] In one embodiment, a plurality of first conductive elements 4 are spaced apart along a direction corresponding to the rotation trajectory of the knob 1, so that the knob 1 can selectively contact and conduct electricity with each of the first conductive elements 4 in sequence during rotation. The arrangement of the plurality of first conductive elements 4 is adapted to the rotation trajectory of the knob, and the overall layout is compact. Furthermore, the plurality of first conductive elements 4 are spaced apart to avoid signal corruption caused by multiple first conductive elements 4 and second conductive elements 5 conducting simultaneously.

[0027] In this embodiment, the flexible circuit board 3 includes a plurality of first conductive ends 7 connected one-to-one with the first conductive element 4 and second conductive ends 8 connected to the first end of the second conductive element 5. A voltage source is connected between the first conductive ends 7 and the second conductive ends 8. The second end of the second conductive element 5 is configured to contact and conduct with a first conductive element 4 or separate from it as the knob 1 rotates.

[0028] Continue to refer to Figure 3 and Figure 5 The diagram illustrates the use of three first conductive elements 4 and three first conductive terminals 7. Furthermore, the second conductive element 5 and the multiple first conductive elements 4 respectively form three different conductive circuits, and the timing control chip 6 outputs three corresponding display screen data based on these three different conductive circuits.

[0029] In this embodiment, the plurality of first conductive elements 4 include a first first conductive element 41, a second first conductive element 42 and a third first conductive element 43 arranged at intervals, and the plurality of first conductive ends 7 include a first first conductive end 71, a second first conductive end 72 and a third first conductive end 73 arranged at intervals, wherein the first first conductive element 41 and the first first conductive end 71 are connected, the second first conductive element 42 and the second first conductive end 72 are connected, and the third first conductive element 43 and the third first conductive end 73 are connected.

[0030] In one embodiment, the first conductive element 4 includes a metal electrode brush. For example, the first conductive element 41 includes a first metal electrode brush, the second conductive element 42 includes a first metal electrode brush, and the third conductive element 43 includes a first metal electrode brush.

[0031] In one embodiment, the second conductive terminal 8 includes a solder joint, and the first conductive terminal 7 includes a solder joint. For example, the first conductive terminal 71 includes a solder joint, the second conductive terminal 72 includes a solder joint, and the third conductive terminal 73 includes a solder joint.

[0032] In other embodiments, the second conductive terminal includes, for example, a pad, a bump, or a spike with conductive properties, and the first conductive terminal includes, for example, a pad, a bump, or a spike with conductive properties.

[0033] Figure 3 and Figure 4 This indicates that the second end of the second conductive element 5 is in contact with and connected to the first conductive element 4. Figure 3 This is a rear view of the display device. Figure 4 for Figure 3 A cross-sectional view obtained along the BB section line. Specifically, rotating knob 1 causes the second end of the second conductive element 5 to contact and conduct with the second first conductive element 42, forming a conductive loop. The closed-loop path of the conductive loop is: second end of the second conductive element 5 - second first conductive element 42 - second first conductive end 72 - timing control chip 6 - second conductive end 8 - first end of the second conductive element 4. At this time, the timing control chip 6 outputs corresponding display screen data according to the current value of the above-mentioned conductive loop.

[0034] In this embodiment, it can also be that: by rotating the knob 1, the second end of the second conductive element 5 contacts and conducts with the first conductive element 41, and the second conductive element 5 and the first conductive element 41 form a conductive circuit. The closed-loop path of the conductive circuit is: the second end of the second conductive element 5 - the first conductive element 41 - the first conductive terminal 71 - the timing control chip 6 - the second conductive terminal 8 - the first end of the second conductive element 5; or, by rotating the knob 1, the second end of the second conductive element 5 contacts and conducts with the third first conductive element 43, and the second conductive element 5 and the third first conductive element 43 form a conductive circuit. The closed-loop path of the conductive circuit is: the second end of the second conductive element 5 - the third first conductive element 43 - the third first conductive terminal 73 - the timing control chip 6 - the second conductive terminal 8 - the first end of the second conductive element 5.

[0035] It is known that the timing control chip 6 and the second conductive terminal 8, and the timing control chip 6 and the first conductive terminal 7 are connected through the internal wiring of the flexible circuit board 3. The internal wiring of the flexible circuit board 3 is not shown in this application.

[0036] In this embodiment, the timing control chip 6 outputs corresponding display screen data based on the different current values ​​of the second end of the second conductive element 5 contacting and conducting with the second first conductive element 42 to form a conductive circuit, the second end of the second conductive element 5 contacting and conducting with the first first conductive element 41 to form a conductive circuit, and the second end of the second conductive element 5 contacting and conducting with the third first conductive element 41 to form a conductive circuit.

[0037] In other embodiments, the number of the first conductive element 4 and the first conductive terminal 7 is not limited and can be adjusted according to actual needs, as long as the number of the first conductive element 4 and the first conductive terminal 7 is the same and corresponds one-to-one; the number of conductive loops that can be formed by the second conductive element 5 and the first conductive element 4 are not limited, nor is the number of output display screen data.

[0038] In this embodiment, the timing control chip 6 is provided with multiple display screen data channels, and these multiple display screen data channels are mapped to multiple conductive circuits formed by the second conductive element 5 and the multiple first conductive elements 4, respectively. The timing control chip 6 can directly call the corresponding display screen data channel to output display screen data according to the mapping relationship, eliminating complex signal analysis calculations and resulting in fast display screen switching response speed.

[0039] Specifically, the timing control chip 6 is provided with a first display screen data channel, a second display screen data channel, and a third display screen data channel. The conductive circuit formed by the second end of the second conductive element 5 contacting and conducting with the first conductive element 41 corresponds to the first display screen data channel; the conductive circuit formed by the second end of the second conductive element 5 contacting and conducting with the second conductive element 42 corresponds to the second display screen data channel; and the conductive circuit formed by the second end of the second conductive element 5 contacting and conducting with the third conductive element 43 corresponds to the third display screen data channel.

[0040] In this embodiment, when knob 1 is rotated to make the second end of the second conductive element 5 contact and conduct with the first conductive element 41, the timing control chip 6 outputs the corresponding display screen data of the first display screen data channel to the display panel 2 according to the monitored current value of the conduction circuit; when knob 1 is rotated to make the second end of the second conductive element 5 contact and conduct with the second first conductive element 42, the timing control chip 6 outputs the corresponding display screen data of the second display screen data channel to the display panel 2 according to the monitored current value of the conduction circuit; when knob 1 is rotated to make the second end of the second conductive element 5 contact and conduct with the third first conductive element 43, the timing control chip 6 outputs the corresponding display screen data of the third display screen data channel to the display panel 2 according to the monitored current value of the conduction circuit. It can be seen that when the second end of the second conductive element 5 is in contact with one first conductive element 4, rotating knob 1 to make the second end of the second conductive element 5 contact with another first conductive element 4 changes the current value of the conduction circuit monitored by the timing control chip 6, thereby determining new display screen data for output. Therefore, the change in the rotation state of knob 1 can be converted into the switching of the screen on display panel 2.

[0041] Figure 5 and Figure 6 This is the state where the second end of the second conductive element 5 is separated from the first conductive element 4. Wherein, Figure 5 This is a rear view of the display device. Figure 6 for Figure 5 A cross-sectional view obtained along the BB section line. Specifically, by rotating knob 1, the second end of the second conductive element 5 is disconnected from any one of the first conductive elements 41, 42, and 43. At this time, there is no conductivity between the second conductive element 5 and the first conductive element 4. The timing control chip 6 can identify the non-conductivity state as a state without a valid conductive loop. In this state, the display panel 2 can maintain the current display screen; the timing control chip 6 can also avoid misinterpreting the non-conductivity state as a display screen switching command.

[0042] It can be seen that regardless of whether the second end of the second conductive element 5 and the first conductive element 4 are separated or in contact, the first end and the second conductive end 8 of the second conductive element 5 are always connected, and the multiple first conductive elements 4 and the multiple first conductive ends 7 are always connected in a one-to-one correspondence.

[0043] In one embodiment, the display device further includes: a plurality of first conductive connecting lines 9, respectively used to connect a plurality of first conductive elements 4 and a plurality of first conductive terminals 7; and a second conductive connecting line 10, used to connect a first terminal and a second conductive terminal 8 of a second conductive element 5.

[0044] In one embodiment, the first conductive connecting line 9 is a first metal conductive connecting line, and the second conductive connecting line 10 is a second metal conductive connecting line. In this embodiment, the materials of the first conductive connecting line 9 and the second conductive connecting line 10 are not limited; for example, they can be copper, as long as the first conductive connecting line 9 and the second conductive connecting line 10 are conductive.

[0045] Specifically, in this embodiment, the plurality of first conductive connection lines 9 include a first first conductive connection line 91, a second first conductive connection line 92, and a third first conductive connection line 93. The first first conductive connection line 91 connects the first first conductive element 41 and the first first conductive end 71, the second first conductive connection line 92 connects the second first conductive element 42 and the second first conductive end 72, and the third first conductive connection line 93 connects the third first conductive element 43 and the third first conductive end 73. For example, the first first conductive connection line 91 is a first first metal conductive connection line, the second first conductive connection line 92 is a second first metal conductive connection line, and the third first conductive connection line 93 is a third first metal conductive connection line.

[0046] Further reference Figure 3 The second end of the second conductive element 5 is in contact with the second first conductive element 41 and conducts electricity. The second conductive element 5 and the second first conductive element 41 form a conductive circuit. The closed-loop path of the conductive circuit is: the second end of the second conductive element 5 - the second first conductive element 41 - the second first conductive connection line 91 - the second first conductive end 71 - the timing control chip 6 - the second conductive end 8 - the second conductive connection line 10 - the first end of the second conductive element 5.

[0047] Regardless of whether the second end of the second conductive element 5 and the first conductive element 4 are separated or in contact, the second conductive connection line 10 is always connected to the first end of the second conductive element 5 and the second conductive end 8, and the multiple first conductive connection lines 9 are always correspondingly connected to the multiple first conductive elements 4 and the multiple first conductive ends 7.

[0048] In one embodiment, the resistance values ​​of each of the first conductive elements 4 are different. This ensures that the current values ​​of the multiple conductive loops formed by the second conductive element 5 and the multiple first conductive elements 4 are different, thereby enabling the timing control chip 6 to identify the corresponding conductive loop based on the monitored current value and output the display screen data corresponding to the different conductive loops to the display panel 2.

[0049] In another embodiment, the resistance values ​​of each first conductive connection line 9 are different. Since each first conductive connection line 9 is located in the conductive loop formed by the second conductive element 5 and the second first conductive element 41, by setting the resistance values ​​of each first conductive connection line 9 to be different, it is also possible to ensure that the current values ​​of the multiple conductive loops formed by the second conductive element 5 and the multiple first conductive elements 4 are different. This enables the timing control chip 6 to identify the corresponding conductive loop based on the monitored current value and then capture the display screen data corresponding to the different conductive loops and output it to the display panel 2.

[0050] In other embodiments, the resistance of each conductive circuit can also be different by setting different resistors in different conductive circuits or by configuring different resistors at the first conductive terminal.

[0051] In this embodiment, the voltage source is integrated into the flexible circuit board 3. The flexible circuit board 3 can provide the required voltage to the conductive circuit. Therefore, there is no need to set up an additional independent power supply voltage module, which helps to simplify the circuit structure of the display module, reduce transmission loss, and ensure a stable power supply to the conductive circuit.

[0052] Specifically, the flexible circuit board 3 is equipped with a power management chip (PMIC), which is electrically connected to a timing control chip (Tcon IC). The PMIC manages the power supply voltage division, and a portion of the power supply voltage it generates is allocated to the timing control chip (Tcon IC). The PMIC provides the required voltage to the conductive circuit, and the timing control chip 6 monitors the current value in the conductive circuit.

[0053] In one embodiment, the flexible circuit board 3 is provided with a connector 11. One end of the connector 11 is used to connect to the vehicle terminal, and the other end is used to connect to the internal wiring of the flexible circuit board 3. The connector 11 can be used to receive regular display data, complete system communication, or update display resources, etc. For display screen switching triggered by the knob 1, the timing control chip 6 can directly process the detected conductive circuit without waiting for the real-time judgment of the vehicle terminal.

[0054] It should be noted that the vehicle terminal refers to an independent vehicle host set up at the car factory. In this application, the timing control chip 6 is set on the flexible circuit board 3 and integrated into the display module. The display module itself can realize the switching of display screen, thereby eliminating the need for the terminal.

[0055] In this embodiment, the display device further includes a support mechanism 12 for supporting the display module, wherein a first conductive element 4 is disposed in the support mechanism 12 and a gap 13 is provided between the first conductive element 4 and the support mechanism 12. When the first conductive element 4 and the second conductive element 5 are in contact and connected, the second end of the second conductive element 5 is prone to squeezing the first conductive element 4, and the gap 12 can provide deformation space for the first conductive element 4.

[0056] Specifically, the first conductive element 4 includes a first portion near the second conductive element 5, a second portion near the first conductive connecting line 9, and a third portion located between the first and second portions. The first portion has a gap 13 with the support mechanism 12, and the second portion and the support mechanism 12 are fitted together, as are the third portion and the support mechanism 12. This avoids the gap 13 being too large, ensuring the stability of the support mechanism 12 in supporting the display module.

[0057] It is understood that the first conductive element 4 being disposed in the supporting mechanism 12 means that the first conductive element 4 is embedded in the supporting mechanism 12 and extends within the supporting mechanism 12, ensuring that both ends of the first conductive element 4 are exposed within the supporting mechanism 12. Specifically, it is sufficient that one end of the first conductive element 4 connected to the first conductive end 7 and the other end connected to the first end of the second conductive element 5 are exposed by the supporting mechanism 12. The first conductive element 4 can be bent or linear. The shape of the first conductive element 4 is also not limited; for example, the first conductive element 4 can be columnar.

[0058] In this embodiment, the second end of the second conductive element 5 is configured to compress the first conductive element 4 to induce elastic deformation when it contacts and conducts electrical contact with the first conductive element 4. The second end of the second conductive element 5 compresses the first conductive element 4, causing elastic deformation. After elastic deformation, the first conductive element 4 applies a reaction force to the second conductive element 5, thereby creating contact pressure between them. This improves the contact pressure between the second conductive element 5 and the first conductive element 4, thus enhancing the stability of the contact conduction and reducing the contact resistance.

[0059] In another embodiment, the second end of the second conductive element 5 is provided with a first protrusion or a first recess, and the first conductive element 4 is provided with a second recess for engaging with the first protrusion or a second protrusion for engaging with the first recess. The mutual engagement of the first protrusion and the second recess, and the mutual engagement of the first recess and the second protrusion, facilitates the positioning and contact between the second conductive element 5 and the first conductive element 4, thereby improving the reliability of the contact and conduction between the second conductive element 5 and the first conductive element 4.

[0060] In one embodiment, the first protrusion is a first arc-shaped protrusion, the first recess is a first arc-shaped recess, the second recess is a second arc-shaped recess, and the second protrusion is a second arc-shaped protrusion. Using an arc-shaped protrusion or an arc-shaped recess as the second end of the second conductive element 5 improves the smoothness of the knob 1 during rotation.

[0061] In other embodiments, the shapes of the first protrusion, the first recess, the second recess, and the second protrusion are not limited. For example, the first protrusion can be a first square protrusion, the first recess can be a first square recess, the second recess can be a second square recess, and the second protrusion can be a second square protrusion, as long as the first protrusion and the second recess engage, and the first recess and the second protrusion engage.

[0062] It should be noted that the inclusion of the second conductive element 5 in the knob 1 means that the second conductive element 5 is embedded in the supporting mechanism 12 and extends within the knob 1, ensuring that the first and second ends of the second conductive element 5 are exposed in the knob 1. The second conductive element 5 can be bent or linear. The shape of the second conductive element 5 is not limited; for example, the second conductive element 5 can be cylindrical.

[0063] In this embodiment, the display panel 2 includes a display area 21, a bonding area 22, and a bending area located between the display area 21 and the bonding area 22. The display module further includes a support layer 12 located on one side of the display area 21. A flexible circuit board 3 is connected to the bonding area 22, and the bending area is bent toward the side of the support layer 12 away from the display area 21, so that the flexible circuit board 3 and the bonding area 22 are located on the side of the support layer 12 away from the display area 21. The flexible circuit board 3 is located on the backlight side of the display area 21.

[0064] In one embodiment, reference Figure 3 and Figure 5 The flexible circuit board 3 is arc-shaped. The flexible circuit board 3 is adapted to the shape of the display panel 2. After the flexible circuit board 3 is bent to the backlight side of the display panel 2, the space fits better with the flexible circuit board 3, avoiding assembly interference with the display panel 2 and improving assembly adaptability.

[0065] In other embodiments, the flexible circuit board is in other shapes, such as a "C" shape. In other embodiments, the flexible circuit board 3 may also take other shapes depending on the assembly space.

[0066] The display panel includes a driver chip 14 located in the bonding area 22; wherein the flexible circuit board 3 is connected to the bonding area 22 and spaced apart from the driver chip 14. Specifically, the timing control chip 6 is electrically connected to the driver chip 14. The timing control chip 6 outputs a display screen data signal based on the current value of the conductive loop formed by the second conductive element 5 and the first conductive element 4. The driver chip 14 provides a data voltage based on the display screen data signal, and the display panel displays the image in the display area 21 under the drive of the data voltage.

[0067] In one embodiment, reference Figure 2 The display module also includes adhesive 13, located between the bonding area 22 and the support layer 12. Adhesive 13 includes, but is not limited to, double-sided adhesive.

[0068] In one embodiment, the display module further includes a cover plate 15, located on the side of the display area 22 opposite to the support layer 13. The cover plate 15 includes a cover plate body 15a and a light-shielding portion 15b surrounding the cover plate body 15a. The cover plate body 15a is disposed opposite to the display area 21, and the light-shielding portion 15b is disposed opposite to the bending area. Since various signal lines are arranged in the bending area, the light-shielding portion 15b is used to shield the signal lines in the bending area, preventing users from visually observing the wiring structure from the outside of the cover plate 15, thus improving the neatness and aesthetics of the display panel. At the same time, the light-shielding portion 15b is only set for the bending area and will not block the effective display image. The cover plate body 15a is a light-transmitting area, ensuring that the image light of the display area 21 can pass through normally to achieve normal display function. In this way, optical and appearance performance is improved without sacrificing display effect.

[0069] In one embodiment, the light-shielding portion 15b includes, but is not limited to, ink.

[0070] In one embodiment, the display module further includes optical adhesive 16, located between the cover plate 15 and the display panel 2. The optical adhesive 16 is used to bond and fix the cover plate 15 and the display panel 2.

[0071] The cover plate 15 is located on the light-emitting side of the display panel 2, and the light-emitting side and the backlight side of the display panel 2 are arranged opposite to each other.

[0072] In one embodiment, the display module further includes an adhesive layer 17 located between the cover plate 15 and the support mechanism 12. Specifically, the adhesive layer 17 is located between the light-shielding portion 15b and the support mechanism 12. The adhesive layer 17 is used to fix the support mechanism 12 and the cover plate 15 together.

[0073] In this embodiment, the support mechanism 12 has a hollow receiving cavity, in which the display panel 2 and the flexible circuit board 3 are located. The support mechanism 12 is arranged around the display panel 2 and the flexible circuit board 3. The display panel 2 and the flexible circuit board 3 are first bonded and fixed to the cover plate 15, and then bonded and fixed to the support mechanism 12 through the cover plate 15, so as to avoid the support mechanism 12 directly contacting the display panel 2 and causing the display panel to malfunction.

[0074] In this embodiment, the display device is an in-vehicle display device.

[0075] Display devices may include organic light-emitting diode (OLED) display devices.

[0076] Display screen data, such as data from different display and control modes in the vehicle central control screen display scenario, including vehicle adjustment interface, air conditioning adjustment interface, audio entertainment interface, and navigation interface, can be set according to the functional configuration of the display device. This embodiment does not limit this.

[0077] In addition, the display device can also be other display products such as a central control screen in a monitoring room that can switch between monitoring screens of different areas, but this embodiment does not limit this.

[0078] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A display device, characterized in that, The device includes a display module and a knob. The display module includes a display panel, a flexible circuit board, and a plurality of spaced first conductive elements. The knob includes a second conductive element. The flexible circuit board is equipped with a timing control chip. The timing control chip is used to output corresponding display screen data according to the current value of the conductive circuit when it detects that the second conductive element and a first conductive element are connected to form a conductive circuit.

2. The display device according to claim 1, characterized in that, The display panel is arc-shaped, surrounds the knob, and the center of curvature of the display panel coincides with the central axis of the knob.

3. The display device according to claim 1, characterized in that, The flexible circuit board includes a plurality of first conductive ends that are connected one-to-one with the first conductive element and a second conductive end that is connected to the first end of the second conductive element. A voltage source is connected between the first conductive end and the second conductive end. The second end of the second conductive element is configured to contact and conduct with or separate from a first conductive element as the knob is rotated.

4. The display device according to claim 1, characterized in that, The resistance values ​​of each of the first conductive elements are different.

5. The display device according to claim 3, characterized in that, The second end of the second conductive element is configured to compress the first conductive element to cause elastic deformation when it contacts and conducts electricity.

6. The display device according to claim 3 or 5, characterized in that, The second conductive element has a first protrusion or a first recess at its second end, and the first conductive element has a second recess for engaging with the first protrusion or a second protrusion for engaging with the first recess.

7. The display device according to claim 3, characterized in that, The voltage source is integrated into the flexible circuit board.

8. The display device according to claim 1 or 5, characterized in that, The display device further includes a support mechanism for supporting the display module, wherein the first conductive element is disposed in the support mechanism and there is a gap between the first conductive element and the support mechanism.

9. The display device according to claim 3, characterized in that, Also includes: Multiple first conductive connecting lines are respectively used to connect multiple first conductive elements and multiple first conductive terminals; The second conductive connecting wire is used to connect the first end of the second conductive element and the second conductive end.

10. The display device according to claim 1, characterized in that, The display device is a vehicle-mounted display device.

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