WO2023225839A1 - 显示模组、其制备方法和包含其的电子装置 - Google Patents

显示模组、其制备方法和包含其的电子装置 Download PDF

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Publication number
WO2023225839A1
WO2023225839A1 PCT/CN2022/094650 CN2022094650W WO2023225839A1 WO 2023225839 A1 WO2023225839 A1 WO 2023225839A1 CN 2022094650 W CN2022094650 W CN 2022094650W WO 2023225839 A1 WO2023225839 A1 WO 2023225839A1
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WO
WIPO (PCT)
Prior art keywords
control panel
sub
positioning hole
main body
display module
Prior art date
Application number
PCT/CN2022/094650
Other languages
English (en)
French (fr)
Inventor
王馨蕊
曲国健
石海军
徐壮
王贝贝
Original Assignee
京东方科技集团股份有限公司
北京京东方显示技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司, 北京京东方显示技术有限公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2022/094650 priority Critical patent/WO2023225839A1/zh
Priority to CN202280001382.2A priority patent/CN117693709A/zh
Publication of WO2023225839A1 publication Critical patent/WO2023225839A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices

Definitions

  • the present disclosure relates to the field of electronic technology, and specifically to a display module, a preparation method thereof, and an electronic device including the same.
  • a display module is a module that can be installed on an electronic device to provide display functionality.
  • the display module has a support member, a display unit fixed on the support member, and a control circuit board for controlling the display unit, and is mounted to electronic devices such as commercial and household appliances.
  • the present disclosure provides a display module including:
  • the supporting middle frame includes a main body plate portion extending in the same direction as the transparent cover plate and support sides arranged around the main body plate portion.
  • the supporting middle frame and the transparent cover plate The board constitutes the first accommodation space;
  • a display unit, the display unit is located in the first accommodation space
  • control board the control board is located on the side of the main body plate away from the display unit, the control board is electrically connected to the display unit, and is used to transmit display signals to the display unit;
  • the supporting middle frame also includes at least one fixing portion located on a side of the main body plate away from the display unit for fixing the control panel.
  • the fixing part is a support fixing column
  • the support fixing column includes a support part located on a side close to the main body plate part and a connecting part located on a side away from the main body plate part;
  • the connecting part includes a limiting part and a fixed head, one end of the limiting part is connected to the support part, and the other end is connected to the fixed head;
  • the control panel includes a positioning hole that penetrates the control panel, and the limiting portion penetrates the positioning hole.
  • the supporting portion and the fixed head are respectively located on both sides of the control panel and are connected with the limiting portion. The parts cooperate to fix the control panel.
  • the material of the fixing part includes hot melt material.
  • the display unit and the control board are electrically connected through a flexible circuit board;
  • the main body plate part includes a first through hole, and the flexible circuit board penetrates the first through hole;
  • control board includes a second through hole, and the flexible circuit board passes through the second through hole and is connected to a side of the control board away from the main body plate;
  • the display module further includes a sealing tape, and an orthographic projection of the sealing tape on the extended surface of the control board covers the second through hole.
  • the support side and the main body plate portion form a second accommodation space, and at least part of the control panel is located in the second accommodation space;
  • the support side includes a first sub-support side, the first sub-support side is arranged around the control panel, and the first sub-support side constitutes a side enclosure of the second accommodation space;
  • the gap between the control panel and the side of the first sub-support is filled with sealant.
  • the transparent cover is fixed to a side of the support side close to the transparent cover;
  • the first accommodating space and the second accommodating space integrally form a sealed space.
  • the support side includes a second sub-support side and a third sub-support side arranged in parallel, wherein the second sub-support side is closer than the third sub-support side.
  • the second sub-support side is directly connected to the main body plate;
  • the control panel includes an indicator light, which is located on a side of the control panel close to the transparent cover; there is a gap between the second sub-support side and the third sub-support side.
  • the indicator light When the indicator light is working, the light emitted by the indicator light can be directed to the transparent cover through the gap and emitted through the transparent cover.
  • the transparent cover includes a cover body and a filter layer located on a side of the cover body close to the display unit;
  • the filter layer includes a transparent area and a light-shielding area surrounding the transparent area.
  • the transparent area is used to transmit the light emitted by the display unit;
  • the filter layer also includes a semi-transmissive area, which is used to transmit the light emitted by the indicator lamp when the indicator lamp is working, and when the indicator light is not working, it appears as the light emitted by the indicator lamp.
  • a semi-transmissive area which is used to transmit the light emitted by the indicator lamp when the indicator lamp is working, and when the indicator light is not working, it appears as the light emitted by the indicator lamp. The same or similar color of the shading area.
  • the support side includes a plurality of fourth sub-support sides, and the fourth sub-support side connects the second sub-support side and the third sub-support side;
  • the fourth sub-support side edge extends in a direction parallel to the extension plane of the control panel
  • the side of the fourth sub-support is disposed close to the control panel.
  • control board includes a second through hole, and the flexible circuit board passes through the second through hole and is connected to a side of the control board away from the main body plate;
  • the control board includes a control board main body, and a flexible circuit board connector disposed on a side of the control board main body away from the main body board.
  • the flexible circuit board connector is disposed adjacent to the second through hole, and the flexible circuit board connector is disposed adjacent to the second through hole.
  • the circuit board connector includes a flexible circuit board connection end;
  • the second through hole is a strip-shaped through hole, and the extension direction of the connecting end of the flexible circuit board is the same as the extension direction of the second through hole;
  • the second through hole is located at an edge of the control board, and the flexible circuit board connector is closer to the center of the control board than the second through hole.
  • control panel body includes a first positioning hole located between the second through hole and the first edge of the control panel body; the center of the first positioning hole is at the second through hole.
  • the orthographic projection of the hole edge close to the side of the first positioning hole is located within the middle 1/3 of the entire length of the hole edge;
  • the fixing part includes a first sub-fixing part, and the first sub-fixing part is matched and fixed with the first positioning hole.
  • control panel includes a touch unit connector located on a side of the control panel body away from the main body plate portion;
  • the touch unit connector includes a touch unit connection end, and the touch unit connection end is configured to extend the touch unit connection line away from the flexible circuit board connector.
  • the display module includes a touch unit, and the touch unit is connected to the touch unit connection end through the touch unit connection line;
  • the control panel body includes a second positioning hole disposed adjacent to a second edge of the control panel, the second edge being located on the side opposite to the first edge;
  • the second positioning hole is arranged adjacent to the touch unit connection line
  • the orthographic projection of the touch unit connection line on the control board does not overlap with the second positioning hole
  • the fixing part includes a second sub-fixing part, and the second sub-fixing part is matched and fixed with the second positioning hole.
  • control panel includes a power input connector located on a side of the control panel body away from the main body plate portion;
  • the power input connector is located on the side where the orthographic projection of the axis of the touch unit connection line on the surface of the control panel body divides the surface of the control panel body;
  • the power input connector includes a power input connection end.
  • the power input connection end is configured to extend the power connection line toward the edge of the control panel body, and the extension direction is consistent with the extension direction of the touch unit connection line. Angle other than 0° and 180°.
  • control panel includes a speaker connector located on a side of the control panel body away from the main body plate portion;
  • the orthographic projection of the axis of the connection line of the touch unit located at the speaker connector on the main surface of the control panel divides the side of the main surface of the control panel that is different from the power input connector;
  • the speaker connector includes a speaker connection end, and the speaker connection end is configured to extend the speaker connection line toward the edge of the control panel body, and the extension direction is 0° with the extension direction of the touch unit connection line. with angles other than 180°.
  • the power input connection end and the speaker connection end are configured such that the extension directions of the power input connection line and the speaker connection line are opposite;
  • the power input connection terminal is configured such that the extension direction of the power input connection line is perpendicular to the extension direction of the touch unit connection line.
  • control board body further includes a third positioning hole, the third positioning hole is located between the flexible circuit board connector and the touch unit connector;
  • connection between the third positioning hole and the center of the orthographic projection of the touch unit connector on the control panel body and the center of the orthographic projection of the flexible circuit board on the control panel body is located. Straight lines do not overlap;
  • the fixing part includes a third sub-fixing part, and the third sub-fixing part is matched and fixed with the third positioning hole.
  • control panel includes a processing unit located on a side of the control panel body away from the main body plate portion.
  • control panel also includes one or more of a Wifi module, a Bluetooth module, a temperature sensing module, a humidity sensing module, an acceleration sensing module, a gravity sensing module, a gas detection module, and a geographical location positioning module.
  • control panel body includes a fourth positioning hole and a fifth positioning hole, and the fourth positioning hole and the fifth positioning hole are both located close to the edge of the control panel body; wherein, the fourth positioning hole The fifth positioning hole is located on the line connecting the first positioning hole and the second positioning hole running clockwise along the edge of the main body of the control panel; the fifth positioning hole is located on the line extending between the first positioning hole and the second positioning hole. On the line running counterclockwise from the edge of the main body of the control panel;
  • the fourth positioning hole and the fifth positioning hole are set so that when the first, second, fourth and fifth positioning holes are connected to the center of the control panel, the angle formed by each two connecting lines is Greater than or equal to 45 degrees;
  • the fixing part includes a fourth sub-fixing part, and the fourth sub-fixing part is cooperated and fixed with the fourth positioning hole; the fixing part includes a fifth sub-fixing part, and the fifth sub-fixing part is connected with the third positioning hole. Five positioning holes are matched and fixed.
  • control panel body includes a sixth positioning hole, and the sixth positioning hole and the third positioning hole are respectively located at an orthographic projection of the touch unit connector on the control panel body.
  • the sixth positioning hole and the third positioning hole are respectively located at an orthographic projection of the touch unit connector on the control panel body.
  • the minimum distance between the sixth positioning hole and the edge of the control panel body is farther than the minimum distance between any one of the first, second, fourth, and fifth positioning holes and the edge of the control panel body;
  • the fixing part includes a sixth sub-fixing part, and the sixth sub-fixing part is matched and fixed with the sixth positioning hole.
  • control panel body includes fourth, fifth, and sixth positioning holes, and the first, third, and third positioning holes are respectively aligned with the fourth, fifth, and sixth positioning holes relative to a line passing through the The axis at the center of the main body of the control panel is axially symmetrically distributed;
  • the fixing part includes a fourth sub-fixing part, and the fourth sub-fixing part is cooperated and fixed with the fourth positioning hole; the fixing part includes a fifth sub-fixing part, and the fifth sub-fixing part is connected with the third positioning hole. Five positioning holes are matched and fixed; the fixing part includes a sixth sub-fixing part, and the sixth sub-fixing part is matched and fixed with the sixth positioning hole.
  • the shape of the control panel is one of a circle, an ellipse, or an N-gon, where N is greater than or equal to 4.
  • the maximum length of a line segment cut through the center point of the control panel on the extension surface of the control panel is less than or equal to 20 cm.
  • the shape of the display unit is one of a circle, an ellipse, or an N-gon, where N is greater than or equal to 4.
  • the present disclosure provides a method for manufacturing the above-mentioned display module, wherein the control board is assembled to the supporting middle frame through the following steps:
  • a non-heat-pressed support middle frame wherein the support portion of the support fixed column has a hot-melt plastic rod, and the height of the hot-melt plastic rod is greater than the positioning hole;
  • the fixed head is allowed to cool and solidify.
  • the present disclosure provides an electronic device including the above display module.
  • the electronic device is a household appliance including a motor.
  • the household appliance is a household cleaning appliance.
  • Figure 1 shows an exploded view of one embodiment of a display module of the present disclosure.
  • FIG. 2 shows an appearance view of an embodiment of the supporting middle frame that has not been combined with the control board through thermal melting.
  • FIG. 3 shows a front view of the back of the control panel of FIG. 2 .
  • Figure 4 shows an enlarged view of the supporting fixed column in Figure 3.
  • Figure 5 shows the combined support and fixed column with a fixed head.
  • Figure 6 shows a front view of one embodiment of the support middle frame.
  • FIG. 7 shows an external view cut away from FIG. 6 .
  • Figure 8 shows a schematic diagram of flexible circuit board connection.
  • Figure 9 shows a front view of the body plate portion with the first through hole.
  • Figure 10 shows a schematic diagram of the arrangement of positioning holes on the back and front of a control board according to one embodiment of the present disclosure.
  • Figure 11 shows an opening method for supporting the middle frame.
  • Figure 12 shows a schematic diagram of a two-color light ring.
  • Figure 13 is an enlarged view of the top boxed area in Figure 12.
  • Figure 14 shows one embodiment of an optical filter.
  • Figure 15 shows another embodiment of the optical filter.
  • Figure 16 shows what the display module looks like when it is inoperative and when it is operational in one embodiment.
  • FIGS 17 and 18 schematically illustrate the hot pressing step.
  • Figure 19 schematically shows a touch slider.
  • Figure 20 shows the connection between the remote interface of the touch slider and the connector of the touch unit.
  • Figure 21 is an exterior view of an assembled embodiment of the present disclosure.
  • Figure 22 shows a schematic diagram of the wiring of the wiring on the side of the main body of the control board away from the main body plate (ie, the back side of the control board).
  • Figure 23 shows a functional block diagram of one embodiment of the present disclosure.
  • the display module usually includes a display unit and a control board that is electrically connected to the display unit and transmits display signals to the display unit.
  • the electrical connection between the control board and the display unit can be completed by a flexible circuit board.
  • these components can be assembled appropriately to form a display module.
  • the assembled display module can be integrally installed on, for example, an electronic device.
  • An example of a control board may be a printed circuit board (PCB).
  • the printed circuit board may have a processing chip, such as a microcontroller unit (MCU).
  • the processing chip can at least be used to control the display content of the display unit.
  • An example of a flexible circuit board may be a flexible printed circuit (FPC).
  • An example of the display unit may be a display screen.
  • Microcontroller unit is also called a single-chip microcomputer or single-chip microcomputer.
  • the frequency and specifications of the central processor are appropriately reduced, and peripheral interfaces such as memory, counter, USB, A/D conversion, UART, PLC, DMA, and display unit driving circuit are integrated on a single chip. , forming a chip-level computer to provide various combination controls for different applications.
  • an MCU board is sometimes used as an example of a control board.
  • MCU board refers to a printed integrated circuit board containing a micro control unit integrated circuit (MCU IC), which can also include FPC connectors, USB, driver microcontrollers, main control input connectors, touch unit connectors, LED lights, Wifi drivers, etc. appendix.
  • MCU IC micro control unit integrated circuit
  • the microcontroller can receive the operation signal from the user from the touch unit connector or the main control input connector, and process it into a control signal accordingly.
  • the control signal to the display unit is transmitted to and controls the operation of the display unit via the FPC through the FPC connector.
  • the control signal for the LED light can control the LED light through the circuit in the control board. Data can be exchanged with the outside world through USB and Wifi driver accessories.
  • the control board may also include a power input connector for powering the control board.
  • the control board may also have a signal interactive connector for transmitting signals between the display module control board and the entire machine control board. The signal interaction connector and the power input connector may be integrated.
  • FPC is sometimes used as an example of a flexible circuit board. It is used to connect the microcontrol unit to the display unit controlled by it.
  • FPC can be made by subtractive method using polyimide as the base material and copper clad laminate.
  • the display units in the display module that are controlled by the control board through the flexible circuit board can be diverse.
  • it can be a liquid crystal module (LCM), which is a component that assembles liquid crystal display devices, connectors, peripheral circuits such as control and drive, backlights, structural parts, etc.
  • LCD liquid crystal module
  • It can also be other display screens, such as LED display modules, etc. This disclosure does not specifically limit the type of display unit.
  • a control board In a display module with a control panel and a display unit, support components are required to support and fix them.
  • the traditional way of fixing a control board to a support component such as a support plate is to open through holes at the four corners of the control board, and screw screws passing through the through holes to nuts provided in the support plate, thereby fixing the control board to the support plate.
  • Support board As an example, according to industrial standards, flat head M2.5mm screws are usually used, the screw head diameter is 5 to 6mm, and a safety space of 8 to 10mm needs to be reserved around the screw. This fixing method takes up a lot of space, and when the display module is miniaturized, it is difficult to meet the wiring requirements of the cloth.
  • the overall size of a display module using a 2-inch display unit should usually be less than 100mm.
  • the control board may need to integrate MCU IC, FPC connector, FPC through hole, USB, driver microcontroller, main control input connector, touch unit connector, LED light, Wifi driver and many other accessories, and the wiring space is very limited .
  • many connector plugs with required functions must be arranged within the product appearance. Otherwise, there may be spatial interference between the module and the entire electronic device using the module, resulting in failure to assemble. In this case, it is also difficult to find enough space to change the position of the screws at the corners to the inside of the product.
  • the way the display module is assembled and fixed also affects its performance.
  • the control board installed by tightening screws in the display module often deforms and bends, and the flexible circuit board used to connect the display unit and the control unit in the display module and its connector
  • the golden finger connections between them are often offset or even misaligned, resulting in poor display function and even a certain proportion of board circuits being damaged.
  • control board is fixed to the support member using fixing parts provided in the support member instead of screws.
  • a display module including:
  • the supporting middle frame includes a main body plate portion extending in the same direction as the transparent cover plate and support sides arranged around the main body plate portion.
  • the supporting middle frame and the transparent cover plate The board constitutes the first accommodation space;
  • a display unit, the display unit is located in the first accommodation space
  • a control panel which is located on the side of the main body panel away from the display unit and is arranged on the back of the main body panel; the control panel is electrically connected to the display unit and is used to provide power to the display unit. transmit display signals;
  • the supporting middle frame also includes at least one fixing portion located on a side of the main body plate away from the display unit for fixing the control panel.
  • the display module of the present disclosure uses a supporting middle frame as a supporting part to support the display unit and the control board.
  • the display module of the present disclosure also includes a transparent cover for protecting the display unit.
  • a transparent cover plate refers to a plate that is at least partially transparent. Having transparent parts is necessary for display.
  • the main body supporting the middle frame is plate-shaped and is called the main body plate.
  • the supporting middle frame includes a main body plate portion extending in the same direction as the transparent cover plate and support sides arranged around the main body plate portion. The support side may have a shape different from the plate shape of the main body plate portion.
  • the supporting middle frame and the transparent cover may form a first accommodation space for accommodating the display unit.
  • the display unit is provided between the supporting body and the transparent cover.
  • the supporting middle frame is used to provide support for the display unit and transparent cover.
  • the display unit and the transparent cover have a fully bonded structure.
  • the support side is used to provide support for the transparent cover. This design facilitates the assembly of the middle frame, transparent cover, and display unit.
  • the support frame is also used to provide support for the control panel.
  • the control board is located on a side of the main body board away from the display unit and is electrically connected to the display unit for transmitting display signals to the display unit.
  • the display unit and the control panel are respectively arranged on both sides of the main body plate.
  • the display unit is arranged on the front side and the control panel is arranged on the back side.
  • “front” or “forward” refers to the direction of the light-emitting surface of the display unit
  • “back” or “rear” refers to the opposite direction.
  • the display unit is at the near end, the control panel is at the far end, and the supporting middle frame is located between the two.
  • the side of all components facing the user is called the front, and the other side is called the back.
  • the support middle frame has a fixing portion, which is located on the side of the main body plate away from the display unit, that is, the back side of the main body plate, for fixing the control board.
  • the display module thus formed includes a transparent cover, a display unit, a supporting middle frame with a fixing part on the main body plate, and a control panel fixed by the fixing part.
  • a through positioning hole is provided on the control panel, and a protruding heat-fusible plastic cylinder is provided on the back of the main body panel as a fixing portion. Insert the plastic cylinder through the positioning hole and heat-melt its protruding end flat to act like a "rivet" to fix the control panel.
  • the fixing part formed by the heat-fusible plastic cylinder can not only be significantly reduced in size to save space, but also has better installation convenience and cost. At least one fixing part is required, and there may be multiple fixing parts.
  • the display module is easy to seal and encapsulate, so that external water vapor does not enter its internal space, thereby preventing condensation of water vapor on the inner wall of the transparent cover from affecting the display effect.
  • the fixing part is a supporting fixing column
  • the supporting fixing column includes a supporting part located on a side close to the main body plate part and a connecting part located on a side away from the main body plate part;
  • the connecting part includes a limiting part and a fixed head, one end of the limiting part is connected to the support part, and the other end is connected to the fixed head;
  • the control panel includes a positioning hole that penetrates the control panel, and the limiting portion penetrates the positioning hole.
  • the supporting portion and the fixed head are respectively located on both sides of the control panel and are connected with the limiting portion. The parts cooperate to fix the control panel.
  • the control board may have at least one positioning hole for cooperating with the connection portion of the supporting fixed column on the main body board to fix the control board to the main body board.
  • a plurality of distributed support fixing posts and corresponding positioning holes can be provided to firmly fix the control panel.
  • the inventor unexpectedly found that when using a columnar body with a certain cross-section as the fixing part, if the columnar body is configured to protrude directly from the main body plate, after being fixed, due to the small cross-sectional area of the columnar body, there will be a gap at the bottom of the columnar body. Stress concentration will occur, which may cause local deformation of the main body plate in the direction perpendicular to the plate surface. Such deformation of the main body plate used to fix the control panel will cause deformation and uneven stress on the control panel. Especially in the case of high temperature and strong vibration, this will easily cause damage to the control board, which will lead to the failure of the display module.
  • the supporting and fixing column of the present disclosure may include a supporting part located on a side close to the main body plate part and a connecting part located on a side away from the main body plate part.
  • it may include a supporting part at the bottom and a fixing part at the top.
  • “bottom” and “top” are relative to the base on which the structure is located.
  • the bottom and top of the supporting fixed column are relative to the main body plate as its base. That is, the end of the supporting fixed column close to the main body plate is its bottom, and the end far away from the main body plate is its top.
  • the supporting and fixing pillars of the present disclosure are arranged on the back of the main body plate and can provide sufficient support for the control panel in a direction perpendicular to the surface of the main body plate.
  • the supporting and fixing pillars of the present disclosure provide effective support for the control plate in the thickness direction in which it is easy to deform. Especially, when it is installed in the middle of the module, it can effectively prevent the collapse and deformation of the middle part of the control panel.
  • the support fixed column of the present disclosure includes a dedicated support portion for serving as a basis for the connection portion and for supporting the control panel.
  • the limiting portion of the connecting portion can protrude from the center of the supporting portion to cooperate with the positioning hole of the control panel.
  • the top periphery of the support portion can be in contact with the board surface around the positioning holes of the control panel.
  • the supporting portion has a larger transverse cross-sectional area. Therefore, compared with directly protruding the stopper from the main body plate part, this can significantly reduce the stress concentration at the support fixed position and the resulting deformation.
  • the height of the support portion separates the control panel from the main body panel portion. Compared with the situation where the control plate is in close contact with the main body plate when no supporting part is provided, this can significantly reduce the vibration of the micro control unit along with the main body plate and effectively reduce failure.
  • the side of the support part away from the main body plate part has a connection part, which includes a limiting part and a fixed head.
  • the limiting part passes through the positioning hole, and the fixed head is in contact with the surface of the control plate on the side away from the main body plate around the positioning hole.
  • the distance between the side of the fixed head facing the control board and the side of the support portion facing the control board is exactly the thickness of the control board, so that the control board is sandwiched therebetween.
  • the limiting part passes through the positioning hole so that the control panel does not move relative to the main body plate in the extending direction of the main body plate. Thereby, the support part, the fixed head part and the limiting part cooperate to fix the control panel.
  • the support part and the limiting part protrude from the main body plate part, and may be integrally formed with the main body plate part.
  • the fixed head may be made of the same material as the limiting part and be integrated, or may be additionally combined with the limiting part.
  • the length of the limiting part may exceed the height of the positioning hole, and the excess part may be formed into a fixed head by hot melt pressurization.
  • the fixed head is formed and bonded to the top end of the stop by a separately applied glue or a separately applied hot melt material.
  • the limiting part passes through the positioning hole and has the same height as the positioning hole
  • the fixed head covers the positioning hole and is in contact with the back of the control board
  • the support part is in contact with the front of the control board, so that the main body plate part passes through
  • the support portion supports the control panel and fixes the control panel by fixing the head.
  • the area of the positioning hole can be the same as the cross-sectional area of the limiting portion to achieve the best limiting effect.
  • the area of the positioning hole is slightly larger than the cross-sectional area of the limiting portion in the hole, so that the limiting portion can easily pass through during assembly.
  • the material of the fixing part may include hot melt material.
  • the hot melt material may enable the control panel to be fixed to the support midframe through a heat pressing step.
  • An example of a hot melt material is polycarbonate (PC).
  • the main body plate part, the supporting part, the limiting part and the fixing part are all formed of the same hot-melt material.
  • the fixed head can be formed by performing a hot pressing step on the hot-melt material, which acts as a "riveting".
  • a fixed head is formed by:
  • a non-heat-pressed support middle frame wherein the support portion of the support fixed column has a hot-melt plastic rod, and the height of the hot-melt plastic rod is greater than the height of the positioning hole;
  • the fixed head is allowed to cool and solidify.
  • the fixed head formed by hot pressing is completely pressed against the back of the control panel, thereby firmly attaching the front of the control panel to the top of the support portion of the main body panel.
  • the main body plate part supports the control panel through the support part and fixes the control panel through the fixing head.
  • the fixed head is round and pie-shaped.
  • the fixed head formed by hot pressing can also effectively isolate the positioning hole from water vapor.
  • the limiting part passes through the positioning hole and plays a lateral limiting role on the control panel.
  • the diameter of the stopper is much smaller than that of a conventional screw, and the diameter of the fixed head is also much smaller than that of a conventional screw head, thus saving space. This significantly increases the flexibility of the design of support fixed points and effectively solves the problem of wiring of cloth parts.
  • FIG 1 shows an exploded view of one embodiment of a display module of the present disclosure.
  • the transparent cover 104 may include an annular filter 1041, a cover body 1042, a double-sided tape 1043 and a protective film 1044.
  • the display unit 103 is in the first accommodation space between the supporting middle frame 101 and the transparent cover 104 , that is, the front side of the supporting middle frame 101 .
  • the control board 102 is on the side of the main body plate portion 1011 of the supporting middle frame 101 away from the display unit 103 , that is, the back side of the supporting middle frame 101 .
  • the display module may optionally include a touch slider 106, the touch operation end of which extends beyond the edge of the supporting middle frame. Users can control the control panel through the touch slider, and then control the display unit located on the front of the supporting middle frame through the flexible circuit board.
  • a touch slider 106 the touch operation end of which extends beyond the edge of the supporting middle frame. Users can control the control panel through the touch slider, and then control the display unit located on the front of the supporting middle frame through the flexible circuit board.
  • FIG. 2 shows an appearance view of an embodiment of the supporting middle frame 201 that has not been combined with the control board through thermal melting.
  • the picture mainly shows the situation on the back.
  • the figure shows the main body plate 2011, supporting sides 2012, supporting fixing posts 2013 and buckles 2015.
  • FIG. 3 shows a front view of the back side of the supporting middle frame of FIG. 2 .
  • the cross shape on the main body plate portion 3011 supporting the middle frame 301 represents the supporting fixed column 3013.
  • Figure 4 shows the supporting fixed column 4013. It can be seen that it consists of a cross-shaped support part 40131 and a hot melt plastic column 40132 on the top of the support part.
  • the plastic post 40132 passes through the positioning hole on the control board, and the top of the plastic post 40132 will be heated and pressured into a round cake-shaped fixed head. The deformed part becomes the stopper to fix the control panel.
  • Figure 5 illustrates one embodiment, showing the combined support fixation post 5013 with a fixation head.
  • 5011 is the main body plate supporting the middle frame
  • 50131 is the supporting part supporting the fixed column 5013
  • 50132 is the connecting part of the fixed supporting column 5013
  • 50132a is the limiting part
  • 50132b is the fixed head
  • 502 is the control board.
  • 5021 is the positioning hole. It can be seen that the support part 50131, the limiting part 50132a and the fixed head 50132b cooperate to fix the control board 502.
  • the support portion may be of any suitable shape.
  • the supporting part is in the shape of a cross as shown in Figure 4, and may also be in the shape of a straight line or an I-shape, for example.
  • These shaped supports form stiffeners, are easy to prepare and can provide excellent mechanical reinforcement and shock absorption.
  • the shape of the support portion is more preferably cross-shaped because its strength is better.
  • the limiting part is cylindrical with a diameter of 1.2mm ⁇ 0.05mm; the positioning hole is cylindrical with a diameter of 1.4mm ⁇ 0.05mm; the fixing head is round cake-shaped,
  • the diameter is 2.0mm ⁇ 0.05mm and the height is 0.4mm ⁇ 0.01mm.
  • the diameter of the stopper can be preferably designed to be the smallest diameter that can be produced by conventional plastic non-high-precision molds, which is about 1.2mm. Accordingly, the size of the positioning hole is slightly larger than that to pass through, which is about 1.4mm.
  • the size range of the fixed head only needs to cover the positioning holes to provide a secure combination, and it can be as small as possible to save space. Therefore, a fixed head with a diameter of approximately 2 mm and a thickness of approximately 0.4 mm is suitable.
  • the dimensions of the support portion may be substantially the same as the dimensions of the opposing fixation head to effect the fixation.
  • the size of the support part 50131 and the fixed head part 50132b are basically the same. Larger supports are also possible.
  • the bottom cross-sectional area of the support part may be larger than the top cross-sectional area thereof, thereby further avoiding stress concentration while saving contact area.
  • the fixed head in the supporting fixed column is a dispensing part. That is, glue is dotted on the top of the limiting part that passes through the positioning hole, and then the glue is solidified and bonded with the limiting part to form a fixed head that cooperates with the limiting part and the supporting part to fix the control panel.
  • the fixed head can be formed by hot pressing.
  • the original support fixing column can no longer form the fixed head by hot pressing.
  • the dismantled fixed head can be repaired using the glue dispensing method described above.
  • fast-curing glue for dispensing.
  • UV curing glue instead of quick-drying glue.
  • the dispensing method can also be used directly.
  • a hot melt adhesive with low fluidity can also be used and hot melt fixed after application.
  • the display unit and the control board are electrically connected through a flexible circuit board
  • the main body plate part includes a first through hole, and the flexible circuit board penetrates the first through hole.
  • the first through hole is used to allow the flexible circuit board to pass through the main body plate portion to connect the display unit and the control board located on both sides of the main body plate portion.
  • the first through hole may be a long through hole.
  • control board includes a second through hole, and the flexible circuit board passes through the second through hole and is connected to a side of the control board away from the main body plate;
  • the display module further includes a sealing tape, and an orthographic projection of the sealing tape on the extended surface of the control board covers the second through hole.
  • the second through hole is used to allow the flexible circuit board to pass through the control board and be connected to the flexible circuit board connector.
  • the second through hole may also be a long through hole.
  • the control board when the flexible circuit board is an FPC, the control board has a second through hole and an FPC connector mounted on its back.
  • the second through hole on the control board is opposite to the first through hole on the main board.
  • the FPC starts from the display unit, passes through the first through hole on the main board and the second through hole on the control board in sequence, and is connected to FPC connector.
  • the second through hole and the first through hole form a passage leading from the outside of the control board to the display unit.
  • the display module further includes a sealing tape, and the orthographic projection of the sealing tape on the extended surface of the control board covers the second through hole.
  • the sealing tape can seal the second through hole and fix the flexible circuit board at the same time. More preferably, the orthographic projection of the sealing tape on the extended surface of the control board covers the second through hole, at least part of the flexible circuit board connector, and the flexible circuit board running between the second through hole and the flexible circuit board connector.
  • Such a large sealing tape can reduce the possibility of gaps during application and provide a more effective seal.
  • the second via is sealed with high temperature resistant tape.
  • the high-temperature-resistant tape has a thin thickness and soft material with low stress. The tape can be completely attached around the second through hole, and the tape will not open when the flexible circuit board generates heat, thereby sealing the product against dust and water vapor.
  • FIG. 8 shows the cross-sectional structure through the second through hole.
  • 801 is the supporting middle frame
  • 802 is the control board
  • 803 is the display unit
  • 804 is the transparent cover
  • 805 is the flexible circuit board.
  • the flexible circuit board 805 starts from the display unit 803, passes through the first through hole 8014 of the supporting middle frame 801 and the second through hole 8022 on the control board, and is connected to the flexible circuit board connector 8024 on the back of the control board 802.
  • the high temperature resistant tape 8025 seals the second through hole 8022 and also covers the flexible circuit board 805 and the flexible circuit board connector 8024 .
  • the support side and the main body plate constitute a second accommodation space, and at least part of the control panel is located in the second accommodation space;
  • the support side includes a first sub-support side, the first sub-support side is arranged around the control panel, and the first sub-support side constitutes a side enclosure of the second accommodation space;
  • the gap between the control panel and the side of the first sub-support is filled with sealant.
  • Figure 5 shows an example of the first sub-support side 50121.
  • the first sub-support side 50121 becomes a side enclosure, forming a side enclosure of the second accommodation space for accommodating the control panel.
  • the gap between the control panel 502 and the first sub-support side 5021 is filled with sealant 507 .
  • the sealant 507 is disposed on the side of the gap between the control panel 502 and the first sub-support side 5021 away from the control panel and/or the sealant 507 is disposed in the gap between the control panel 502 and the first sub-support side 5021 .
  • the sealant can prevent water vapor and dust from entering the interior of the display module through gaps, thereby achieving a dustproof and waterproof vapor seal for the product, and can also play a certain role in fixing it.
  • Figure 8 also shows the first sub-support side 80121 as a side enclosure. As shown in Figure 8, the gap between the first sub-support side 80121 and the control panel 802 is sealed with sealant 807.
  • the cross-sectional view of Figure 5 shows a cross-section through the fixing part and the indicator light
  • the schematic diagram of Figure 8 shows a cross-section that does not pass through the fixing part and the indicator light, but passes through the first through hole and the second through hole.
  • the transparent cover is fixed to a side of the supporting side close to the transparent cover
  • the first accommodating space and the second accommodating space integrally form a sealed space.
  • the transparent cover 504 is also fixed to the side of the supporting side 5012 close to it.
  • the fixing method can be using sealant.
  • the transparent cover 504 may include a filter 5041 and a cover body 5042.
  • the cover body may be, for example, a glass cover.
  • the supporting side 5012 is fixed to the transparent cover on one side and forms a seal.
  • the first sub-supporting side 50121 it includes cooperates with the control panel to form a seal, so that the first accommodating space and the second accommodating space can form a sealed space as a whole.
  • the two can communicate with each other through the aforementioned first through hole located on the main body plate. However, the space is sealed to the outside.
  • the front side of the supporting side supporting the middle frame is tightly coupled and fixed with the transparent cover, for example, it can be fixed by sealant; the gap between the first sub-supporting side supporting the back side of the middle frame and the control panel It is filled with sealant; the second through hole in the control board is sealed by sealing tape; the positioning hole in the control board is sealed by the fixed head.
  • An optional double-sided tape 8043 is also provided between the filter layer 8041 of the transparent cover 804 in Figure 8 and the cover body 8042.
  • the filter layer is a separate filter, you can use double-sided tape to stick it to the cover body.
  • the filter layer is a film layer directly formed on the cover plate body, such as a film layer directly deposited or coated on the cover plate, the double-sided tape can be omitted.
  • FIG. 6 shows a front appearance view of one embodiment of the supporting middle frame, in which the display unit 602 is embedded in the front.
  • FIG. 7 shows an external view cut away from FIG. 6 .
  • FIG. 7 shows a flexible circuit board 705 connected to the display unit 702 and passing through the first through hole 7014 on the supporting middle frame 701 .
  • Also shown in Figure 7 is a cross-section of one embodiment of a support side around the main body panel, including a second sub-support side and a third sub-support side described below.
  • the support side includes a second sub-support side and a third sub-support side arranged in parallel, wherein the second sub-support side is smaller than the third sub-support side.
  • the second sub-support side is directly connected to the main body plate.
  • a surface of the third sub-support side away from the second sub-support side is connected to the first sub-support side.
  • the surface on the side away from the control panel can be the same surface. The same surface can be understood as there is no obvious step difference when the surface extends.
  • the supporting side itself can be prepared using a one-time process.
  • the first supporting side, the second sub-supporting side and the third supporting side are made of the same material, and can be prepared in one process.
  • the supporting side edges and the main body plate part can be prepared in one process.
  • the primary process may be a molding process, especially an injection molding process. Thermoplastic plastic injection molding can be used to prepare the main panel and supporting sides.
  • control panel includes an indicator light located on a side of the control panel close to the transparent cover; the second sub-support side and the third sub-support side There is a gap between the sides.
  • the indicator light When the indicator light is working, the light emitted by the indicator light can be emitted to the transparent cover through the gap and emitted through the transparent cover.
  • the control panel may have indicator lights mounted on its front.
  • An example of an indicator light may be an LED light. It can be a decorative light for decoration, an indicator light for indication, etc. This way, an additional visual effect can be provided to the user outside of the display unit.
  • the indicator lights are controlled by the control panel. Since it is a component of the control panel, it is located on the side of the main body panel away from the display unit. In order for the user to see the indicator light on the front of the display module, a gap through which the light can pass should be provided in the supporting middle frame. In other words, the supporting middle frame may have an indicator light light outlet opposite to the indicator light.
  • the indicator light light hole allows the light emitted by the indicator light located on the control board on the back of the supporting middle frame to emit from the front of the display module without being blocked by the supporting middle frame.
  • the indicator lights on the front of the control panel are set as a light ring around the peripheral area of the panel so as not to occupy the display space of the central display unit.
  • the surrounding area is not limited to making light rings, but can also produce LED characters required for products.
  • a light outlet hole for the indicator light is provided in the middle support frame, so that the light emitted by the indicator light on the control board located on the back of the middle support frame can be emitted from the front of the display module without being blocked by the middle support frame.
  • the light outlet of the indicator light is therefore arranged at a position opposite to the indicator light.
  • the indicator light light holes are a plurality of holes arranged along the periphery of the supporting middle frame. As shown in FIG. 9 , indicator light holes or gaps 9016 may be arranged around the periphery of the supporting middle frame. Accordingly, the LED lights of the control panel are arranged around the perimeter.
  • Figure 12 shows a schematic diagram of a two-color light ring. It has two rings of LED lights inside and outside, which can display different colors and are exposed from the surrounding indicator light holes.
  • Figure 13 is an enlarged view of the top box area in Figure 12. It can be seen that the inner ring of LED lights 13023a and the outer ring of LED lights 13023b are exposed to the front in the light outlet of the indicator light.
  • the inner ring may be red and the outer ring may be blue.
  • the through hole in the edge ring area corresponds to the light ring.
  • the LED light ring is integrated on the micro control unit circuit board and is divided into red and blue colors. Each pair of red and blue LED lights is a group. Every 3 groups of LEDs are in an indicator light hole.
  • Figure 5 shows an embodiment with indicator lights around the perimeter of the control panel.
  • the control panel 502 includes an indicator light 50237, which may be an LED light, for example.
  • the indicator light 5023 is located on the side of the control panel close to the transparent cover, that is, the front side thereof.
  • the support side may include a second sub-support side 50122 and a third sub-support side 50123 arranged in parallel, where , the second sub-support side 50122 is closer to the display unit 503 than the third sub-support side 50123, and the second sub-support side 50122 is directly connected to the main body plate portion 5011.
  • the gap 5016 there is a gap 5016 between the second sub-support side 50122 and the third sub-support side 50123.
  • the indicator light 5023 When the indicator light 5023 is working, the light emitted by the indicator light can be emitted to the transparent cover 504 through the gap 5016 and pass through. Ejected through the transparent cover 504. That is, the gap forms a light exit hole for the indicator light.
  • the second sub-support side and the third sub-support side are separated by a gap 5016.
  • the second sub-support side and the third sub-support side are connected via connections in other cross-sections (the fourth sub-support side as shown in Figure 8).
  • FIG. 9 shows a front view of the main body plate portion 901 with the first through hole 9014.
  • the main body plate also has a central recessed portion for accommodating the display unit, and has a gap 9016 around it for allowing the indicator light to emit light.
  • LED lights may also be arranged in areas of the control panel corresponding to certain areas of the main body panel.
  • Figure 11 shows a way of opening an opening on the main body plate supporting the middle frame.
  • the openings 11017a and 11017b are indicator light openings, that is, indicator light light holes, used to expose the LED indicator lights provided at corresponding positions on the control board.
  • the central rectangular area schematically shows a placement position of a display unit.
  • the display unit may accordingly have a rectangular display area and may be used with the filter layer of FIG. 15 , for example.
  • the control panel can control the LED light group corresponding to the position of opening 11017a to display numbers or time, or control the LED light group corresponding to the position of opening 11017b to display work intensity by the number of lights on, etc.
  • the transparent cover includes a cover body and a filter layer located on a side of the cover body close to the display unit;
  • the filter layer includes a transparent area and a filter layer surrounding the transparent area.
  • a light-shielding area, the transparent area is used to transmit light emitted by the display unit;
  • the filter layer also includes a semi-transmissive area, which is used to transmit the light emitted by the indicator lamp when the indicator lamp is working, and when the indicator light is not working, it appears as the light emitted by the indicator lamp.
  • a semi-transmissive area which is used to transmit the light emitted by the indicator lamp when the indicator lamp is working, and when the indicator light is not working, it appears as the light emitted by the indicator lamp. The same or similar color of the shading area.
  • the transparent cover of the display module may include a filter layer or filter, which has a light-shielding area that blocks the non-luminous area and a transparent area that exposes the display area of the display unit.
  • a filter 1041 may be included in the transparent cover on the front side of the display unit.
  • the filter layer may be a coating directly formed on the surface of the cover body, or may be a separate filter.
  • the filter has a light-shielding area, which can be formed of black ink to block areas that do not need to emit light to make the product beautiful.
  • Corresponding to the display unit is a transparent area.
  • Figure 14 shows an embodiment of a filter layer having a light shielding area 14041a and a transparent area 14041c.
  • the transparent area can be a hollow area without material.
  • the filter layer shown in Figure 14 may be an annular filter.
  • Figure 15 shows another embodiment of the filter layer having a light shielding area 15041a and a transparent area 15041c. It can be used in conjunction with the supporting middle frame as shown in Figure 11.
  • the filter layer may also include a semi-transmissive area.
  • the semi-transmissive area is used to transmit the light emitted by the indicator lamp when the indicator lamp is working and scatter the light of the indicator lamp for uniform display. When the lamp is not working, it displays the same or similar color as the shading area.
  • the difference between a semi-transparent area and a completely transparent transparent area is that it can have color itself and can scatter the light passing through it, making it look more uniform and soft.
  • the semi-transmissive area may be a light scattering area.
  • the semi-transparent area can be formed by covering the surface of the white diffusion ink with a black translucent film.
  • FIG. 14 shows the semi-transmissive area 14041b
  • FIG. 15 shows the semi-transmissive area 15041b.
  • FIG 5 shows the light-shielding area 5041a, the semi-transmissive area 5041b, and the transparent area 5041c of the filter layer.
  • the transparent area is used for the display unit to emit light
  • the semi-transparent area is used for the indicator light to emit light.
  • the filter layer also has the same form of light-shielding area 8041a, semi-transmissive area 8041b, and transparent area 8041c.
  • the semi-transmissive area When assembled in a display module, the semi-transmissive area displays the same or similar color as the light-shielding area when the indicator light is not working. Similar colors refer to colors that are difficult for users to distinguish at a normal distance.
  • the semi-transmissive area and the adjacent light-shielding area when viewed from a normal usage distance, are both substantially black in color and appear to be integrated. As a result, a completely black screen can be displayed in a black mirror state, which is more beautiful.
  • the central area display unit displays the startup screen and work interface normally, and the indicator area lights up according to the working conditions.
  • Figure 16 shows the appearance of the display module inactive (left) and operational (right) in one embodiment. It can be seen that when it is not working, it displays a pure black appearance. When it is working, the display of the display unit can be viewed from the transparent area and the lighting of the indicator light can be observed from the semi-transparent area. The black appearance of the semi-transparent area when not in operation can be achieved by selecting a gray light scattering film and superimposing it with the gray cover body.
  • the gray cover body can be gray glass.
  • the support side includes a plurality of fourth sub-support sides, and the fourth sub-support side connects the second sub-support side and the third sub-support side;
  • the fourth sub-support side edge extends in a direction parallel to the extension plane of the control panel
  • the side of the fourth sub-support is disposed close to the control panel.
  • connection part may be a fourth sub-support side that also provides auxiliary support for the control panel.
  • the fourth sub-support side serves to connect the second and third sub-support sides and supports the control panel.
  • the second sub-support side 80122 and the third sub-support side 80123 are connected through the fourth sub-support side 80124.
  • the fourth sub-support side 80124 extends in a direction parallel to the extension plane of the control board 802 and is disposed close to the control board 802, which can serve to assist in supporting the control board 802 around the display module.
  • the fourth sub-support side is set at a position where the control panel has no indicator light, which will not affect the light emission of the indicator light and can effectively support the control panel.
  • the fourth sub-support side and the second and third sub-support sides may be formed in one process.
  • the fourth sub-support side and the first, second and third sub-support sides may all be formed in one process.
  • the control panel of the present disclosure may not directly and completely fit with the main body plate supporting the middle frame due to the existence of the sub-supporting edge and/or the supporting portion of the fixed supporting column, but leaves a gap.
  • the gap between the main body plate and the main body plate can be beneficial to the control board's uniform heat dissipation and/or shock resistance.
  • the structure of the display module of the present disclosure uses a fixing part on the side of the supporting middle frame away from the display unit, especially a supporting fixing column, instead of conventional screw fixing. This is not only beneficial to the shock absorption and sealing performance of the display module, but also provides great flexibility for the wiring of small-size display modules.
  • control panel is provided with multiple functional units, as well as power components that supply power to these functional units and a processor that controls these functional modules.
  • FIG. 23 shows a functional block diagram of one embodiment of the present disclosure.
  • the display module has a display unit, a wireless communication module, a storage unit such as USB and flash memory, an audio unit (for example, including an audio amplifier and a speaker connector connected thereto), a touch unit, an LED indicator unit (for example, including an LED microcontroller and LED lights connected to it).
  • the display module has a processing unit that controls the above modules.
  • the display module also has power components for powering each unit.
  • the processing unit can interact with or control these functional units, while the power input connector and Buck step-down conversion circuit can provide the required operating voltage for each functional unit.
  • the power input connector is connected to an external power source to provide power to the entire display module. It can directly supply power to processing units, USB, LED microcontrollers, wireless communication modules, etc., such as providing 5V voltage. It can also output a lower voltage through a transformer device such as a BUCK step-down conversion circuit. For example, it can provide a voltage of 2.8V for the display unit, or provide voltages of 1.1V, 1.8V, 3.3V, etc. for the devices in the processing unit.
  • the processing unit can communicate and exchange data with USB, flash memory, Wifi, Bluetooth, touch unit and other units.
  • the processing unit may control the display unit, an example may be a 2.1-inch LCD display.
  • the processing unit can also control the LED microcontroller and thereby control the LED lights.
  • the processing unit may have an audio processor connected to an audio amplifier and further connected to a speaker connector for providing sound signals to a peripheral speaker.
  • the processing unit can be controlled by the touch unit. It should be understood that the functional block diagram of FIG. 23 is only for schematically illustrating the general working principle of the display module, and does not limit the functions of the display module of the present disclosure.
  • the display module of the present disclosure may also include other functional modules, such as a temperature sensing module, a humidity sensing module, an acceleration sensing module, a gravity sensing module, a gas detection module, a geographical location positioning module, etc. They are all controlled or accessed by the processing unit and powered by the power supply components.
  • This disclosure also provides a design solution for the location of cloth wiring and positioning holes/supporting fixing posts in the display module.
  • control board includes a second through hole, and the flexible circuit board passes through the second through hole and is connected to a side of the control board away from the main body plate;
  • the control board includes a control board main body, and a flexible circuit board connector provided on a side of the control board main body away from the main body plate portion, the flexible circuit board connector is provided adjacent to the second through hole, and the
  • the flexible circuit board connector includes a flexible circuit board connection end;
  • the second through hole is a strip-shaped through hole, and the extension direction of the connecting end of the flexible circuit board is the same as the extension direction of the second through hole;
  • the second through hole is located at an edge of the control board, and the flexible circuit board connector is closer to the center of the control board than the second through hole.
  • the flexible circuit board connector can be located on the back of the control board, that is, on the side away from the main body board, for connecting the flexible circuit board. It may have a flexible circuit board connection end, such as a gold finger, that allows the flexible circuit board port to plug into the flexible circuit board connection end.
  • the second through hole may be a strip-shaped through hole to allow the flat flexible circuit board to pass through.
  • the extending direction of the connecting end of the flexible circuit board is the same as the extending direction of the second through hole, that is, they are parallel. In this way, the flexible circuit board can be inserted into the flexible circuit board connector without twisting after passing through the second through hole.
  • Flex circuit board connectors are larger devices that can be placed closer to the center of the control board. In contrast, vias can be further away from the center. This kind of cloth wiring method is conducive to the plug-in installation of flexible circuit boards, and also avoids large bending of flexible circuit boards.
  • Figure 22 shows a schematic diagram of the wiring of the wiring on the side of the main body of the control board away from the main body plate (ie, the back side of the control board).
  • the figure shows the second strip-shaped through hole 22a and the flexible circuit board connector 22b, which are adjacently arranged and extend in the same direction.
  • Flexible circuit board connector 22b is closer to the center of the control board. After the flexible circuit board 22e passes through the second strip-shaped through hole 22a, it can be connected to the flexible circuit board connector connection end (gray area) on the upper edge of the flexible circuit board connector.
  • the flexible circuit board passes through the second through hole and directly leads out, and the bottom of the lead corresponds to the flexible circuit board connector.
  • Flexible lines need to avoid dead bends as much as possible. There should be no components under the outlet of the flexible circuit board to avoid puncture and short circuit. Therefore, it is appropriate for the flexible circuit board connector to be located 4mm ⁇ 0.5mm below the second through hole.
  • control panel body includes a first positioning hole located between the second through hole and the first edge of the control panel body; the center of the first positioning hole is on the second
  • the orthographic projection of the hole edge on the side of the through hole close to the first positioning hole is located within the middle 1/3 section of the entire length of the hole edge.
  • the fixing part includes a first sub-fixing part, and the first sub-fixing part is cooperatively fixed with the first positioning hole.
  • the first positioning hole may be close to the first edge of the control panel body.
  • the first edge is the edge closest to the second through hole, the upper edge above the second through hole as shown in FIG. 22 .
  • the first positioning hole is preferably located close to the center line of the main body plate to increase the bearing capacity of the position near the connector of the flexible circuit board, especially to increase its reliability in a high-vibration use environment.
  • 1 in Figure 22 shows the first positioning hole.
  • the orthographic projection of the hole edge whose center is on the side of the second through hole close to the first positioning hole is located in the middle 1/3 of the entire length of the hole. Within, such as the position between two dotted lines.
  • control panel includes a touch unit connector located on a side of the control panel body away from the main body plate portion;
  • the touch unit connector should not be too close to the edge, otherwise it will be difficult to insert the touch unit cable.
  • setting it at the center is also more convenient for obtaining effective support from the fixed support column, and its center is preferably set within the above-mentioned reference circle.
  • the touch unit connector 22c is located in the reference circle drawn by the dotted line.
  • the center of the control panel body is located within the orthographic projection of the touch unit connector on the control panel body. In this way, the touch unit connector not only has its center close to the center of the main body of the control board, but also occupies the center of the main body of the control board, making the structure more stable.
  • the touch unit connector includes a touch unit connection end, and the touch unit connection end is configured to extend the touch unit connection line away from the flexible circuit board connector.
  • FIG. 22 shows the touch unit connection terminal located at the lower end of the touch unit connector, which is shown in gray.
  • the touch connection line connected to the touch unit connector will extend downward and away from the upper flexible circuit board connector to avoid spatial conflict or interference with it.
  • the touch unit connection line, touch unit connector, flexible circuit board connector, flexible circuit board, and second through hole are basically on the longitudinal center line of the display module, and the touch unit connector is on the central 1/3 of the width In the area, the touch unit connection line extends from the touch unit connector to the lower area, the flexible circuit board connector is in the area above the touch unit connector, and the second through hole is 4mm above the flexible circuit board connector. ⁇ 0.5mm.
  • the display module includes a touch unit, and the touch unit is connected to the touch unit connection end through the touch unit connection line;
  • the control panel body includes a second positioning hole disposed adjacent to a second edge of the control panel, the second edge being located on the side opposite to the first edge;
  • the second positioning hole is arranged adjacent to the touch unit connection line
  • the orthographic projection of the touch unit connection line on the control board does not overlap with the second positioning hole
  • the fixing part includes a second sub-fixing part, and the second sub-fixing part is matched and fixed with the second positioning hole.
  • the upper end of the touch unit connection line 22d is inserted into the connection end of the touch unit connector, and the lower end is connected to the touch unit 22f.
  • the touch unit connection line is basically located on the center line of the display module and below the display unit, making it easier for the user to operate the proximal touch unit.
  • the touch unit is a component suitable for one-handed operation by the user and should be ergonomic, convenient and beautiful to operate. When the touch unit is located directly below the center line of the display unit, it is both beautiful and convenient for users to operate at the near end when viewing images displayed on the display unit.
  • the touch unit connector is basically on the longitudinal centerline of the display module. During installation, you need to insert the touch unit cable into the touch unit connector.
  • the touch unit connector is preferably within the central 1/3 width area.
  • the touch unit connecting wire and the flexible circuit board assembly should be located in opposite directions from the touch unit connector. That is, when the touch unit connection line extends downward, the flexible circuit board through hole and the flexible circuit board connector should be disposed above the touch unit connector.
  • the flexible circuit board is the main heating device and should not overlap with other circuits
  • the touch unit connection wire is a soft circuit and should not overlap with hard components such as flexible circuit board connectors
  • the cross-overlapping of various circuits is also possible produce signal interference.
  • the material used for the touch unit connecting wire is generally PET flakes, which is different from wires such as power supplies.
  • Power wires are usually copper wires wrapped with an insulation layer.
  • the insulation layer material is PVC (polyvinyl chloride), which has good resistance to bending, twisting or scratching.
  • PVC polyvinyl chloride
  • the touch unit connecting wire above the bump is easily punctured, causing circuit abnormalities. Therefore, the nearby fixing part should avoid the routing position of the touch unit connecting wire. Therefore, the positions of the positioning holes near the second edge (lower edge in FIG. 22 ) of the control board opposite to the first edge may be designed to be non-centrally symmetrical with the first positioning holes near the first edge relative to the center of the control board.
  • the orthographic projection of the second positioning hole and the touch unit connection line on the control board does not overlap.
  • control board includes a power input connector located on a side of the control board body away from the main body plate;
  • the power input connector is located on the side where the orthographic projection of the axis of the touch unit connection line on the surface of the control panel body divides the surface of the control panel body;
  • the power input connector includes a power input connection end.
  • the power input connection end is configured to extend the power connection line toward the edge of the control panel body, and the extension direction is consistent with the extension direction of the touch unit connection line. Angle other than 0° and 180°.
  • connectors other than the flexible circuit board connector and the touch unit connector are suitable for horizontal insertion to avoid interference with the flexible circuit board and touch unit connection lines.
  • the power input connector is used to connect the power supply of peripherals to power the display module.
  • the power input connection end of the power input connector only needs to be such that the extension direction of the power connection line is not consistent with the touch unit connection line, that is, at an angle other than 0° and 180°.
  • the extension direction of the power connection line is perpendicular to the extension direction of the touch unit connection line.
  • the power input connector is located on one side of the main surface of the control panel divided by the orthographic projection of the axis of the touch unit connection line on the main surface of the control panel, that is, it has nothing to do with the orthographic projection of the touch unit connection line on the main surface of the control panel. overlap.
  • the power input connector 22g is located on the left side, and the power input connection terminal on the left side shown in gray is connected to the power connection line.
  • the extension direction of the power connection line is in line with the touch unit connection line.
  • the extension direction is basically vertical.
  • a signal interactive connector can also be installed on the control board to transmit signals between the display module control board and the entire machine control board.
  • the signal interactive connector can be integrated with the power input connector or set side by side.
  • the signal interactive connection line can Set up in parallel with the power input cable.
  • control panel includes a horn connector located on a side of the control panel body away from the main body plate;
  • the orthographic projection of the axis of the connection line of the touch unit located at the speaker connector on the main surface of the control panel divides the side of the main surface of the control panel that is different from the power input connector;
  • the speaker connector includes a speaker connection end, and the speaker connection end is configured to extend the speaker connection line toward the edge of the control panel body, and the extension direction is 0° with the extension direction of the touch unit connection line. with angles other than 180°.
  • the speaker connector is used to connect an external speaker or speaker, so that the control panel can also provide sound prompts to the user through the display module. It follows similar routing rules as the power input connector. However, since both it and the power input connector are relatively large components, it is preferably located on a different side from the power input connector.
  • the speaker connector 22h is located on the opposite side to the power connector 22g, that is, on the right side.
  • the speaker connection end shown in gray is configured so that the speaker connection line extends toward the edge of the control panel body, and the extension direction is substantially perpendicular to the extension direction of the touch unit connection line. There is no overlap between the orthographic projections of the connection lines of the speaker connector and the touch unit on the surface of the main body of the control panel.
  • the power connector and the speaker connector can be on both sides of the center line, and the horizontal distance from the touch unit connection line is between 0.5mm and 5mm. They can be as close to the center as possible, e.g. less than 5mm apart. However, considering the minimum feasible distance between the pins closest to the touch unit connection line and the available space, a distance of at least 0.5mm needs to be left.
  • the power input connection end and the speaker connection end are configured such that the extension directions of the power input connection line and the speaker connection line are opposite;
  • the power input connection terminal is configured such that the extension direction of the power input connection line is perpendicular to the extension direction of the touch unit connection line.
  • This wiring method minimizes interference among various components, facilitates the plugging and unplugging of various connecting wires, and is suitable for cooperating with the design of the positioning holes and fixed support columns of the present disclosure to achieve a stable and earthquake-resistant display module assembly. .
  • FIG. 22 shows an arrangement in which the extension directions of the power input connection line and the speaker connection line are opposite and are perpendicular to the extension direction of the touch unit connection line.
  • the power input connector 10g and the speaker connector 10h are respectively on the left and right sides of the center line, and the openings for wiring are outwards on the left and right respectively.
  • the horizontal distance between them and the touch unit connection line 10d is less than 5 mm.
  • it may also include, for example, a micro control unit MCU 10j, a touch control processor 10k, etc.
  • the MCU may be located between the speaker connector and the flex circuit board connector, for example.
  • the touch control processor may be located between the power connector and the flexible circuit board connector, for example.
  • control board body further includes a third positioning hole, the third positioning hole is located between the flexible circuit board connector and the touch unit connector;
  • connection between the third positioning hole and the center of the orthographic projection of the touch unit connector on the control panel body and the center of the orthographic projection of the flexible circuit board on the control panel body is located. Straight lines do not overlap;
  • the fixing part includes a third sub-fixing part, and the third sub-fixing part is matched and fixed with the third positioning hole.
  • the third positioning hole is used to provide support in the middle of the control panel body. It is located between the flexible circuit board connector and the touch unit connector, and can provide support for both connectors at the same time. It does not overlap with the straight line connecting the center of the two connectors, that is, it is not on the straight line of the connecting line, but on one side of it. This is because the first positioning hole is preferably provided on the edge on the center line. In Figure 22, the third positioning hole 3 is not located on the center line. There is already a first positioning hole on the center line. Therefore, the third positioning hole can be further away from the straight line of the above-mentioned connection line than the first positioning hole, thereby providing more evenly distributed support in the middle of the main body of the control panel.
  • control panel includes a processing unit located on a side of the control panel body away from the main body plate portion.
  • control board may also include a processing unit located on the back thereof.
  • the processing unit may be a processor. It does not require external wiring, so there is no connection end for external wiring, and it can be arranged in any position that does not conflict or interfere with the aforementioned components and wiring.
  • control panel further includes one or more of a Wifi module, a Bluetooth module, a temperature sensing module, a humidity sensing module, an acceleration sensing module, a gravity sensing module, a gas detection module, and a geographical location positioning module.
  • Wifi module a Wifi module
  • Bluetooth module a temperature sensing module
  • humidity sensing module a humidity sensing module
  • acceleration sensing module a gravity sensing module
  • gas detection module a geographical location positioning module.
  • geographical location positioning module can be arranged on the side of the main body of the control panel away from the main body plate to provide more functions for the display module.
  • the control panel body includes a fourth positioning hole and a fifth positioning hole, and the fourth positioning hole and the fifth positioning hole are both located close to the edge of the control panel body; wherein the fourth positioning hole The positioning hole is located on a line connecting the first positioning hole and the second positioning hole clockwise along the edge of the main body of the control panel; the fifth positioning hole is located on the first positioning hole and the second positioning hole. The hole extends on a line extending counterclockwise from the edge of the main body of the control panel;
  • the fourth positioning hole and the fifth positioning hole are set so that when the first, second, fourth and fifth positioning holes are connected to the center of the control panel, the angle formed by each two connecting lines is Greater than or equal to 45 degrees;
  • the fixing part includes a fourth sub-fixing part, and the fourth sub-fixing part is cooperated and fixed with the fourth positioning hole; the fixing part includes a fifth sub-fixing part, and the fifth sub-fixing part is connected with the third positioning hole. Five positioning holes are matched and fixed.
  • fourth and fifth positioning holes can be added respectively on the clockwise edge and the counterclockwise edge from the first positioning hole to the second positioning hole, and they are all connected with the first and second positioning holes. Keep the circumferential angle large enough to strengthen weak areas more effectively. Specifically, they are located at positions beyond a circumferential angle of 45° in clockwise and counterclockwise directions from the first and second positioning holes.
  • the radial dotted lines on both sides of the first and second positioning holes in Figure 22 show the range of each 45° circumferential angle, and the fourth and fifth positioning holes 4 and 5 are located outside this range. Therefore, the fourth positioning hole and the fifth positioning hole are arranged so that when the first, second, fourth, and fifth positioning holes are connected to the center of the control panel, the angle formed by each two connecting lines is greater than or equal to 45 degrees.
  • control panel main body includes a sixth positioning hole, and the sixth positioning hole and the third positioning hole are respectively located at the right position on the control panel main body through the touch unit connector.
  • the sixth positioning hole and the third positioning hole are respectively located at the right position on the control panel main body through the touch unit connector.
  • the minimum distance between the sixth positioning hole and the edge of the control panel body is farther than the minimum distance between any one of the first, second, fourth, and fifth positioning holes and the edge of the control panel body;
  • the fixing part includes a sixth sub-fixing part, and the sixth sub-fixing part is matched and fixed with the sixth positioning hole.
  • the sixth positioning hole is also used to support the middle part of the main body of the control panel. Therefore, it is further away from the edge than the first, second, fourth, and fifth positioning holes, that is, closer to the center. In addition, it and the third positioning hole are located on both sides of the center line, which can provide more evenly distributed support for the center of the control panel body.
  • the main body of the control panel includes fourth, fifth, and sixth positioning holes, and the first, third, and third positioning holes are respectively aligned with the fourth, fifth, and sixth positioning holes relative to a through hole.
  • the axis passing through the center of the main body of the control panel is axially symmetrically distributed;
  • the fixing part includes a fourth sub-fixing part, and the fourth sub-fixing part is cooperated and fixed with the fourth positioning hole; the fixing part includes a fifth sub-fixing part, and the fourth sub-fixing part is cooperated with the fourth positioning hole.
  • Five positioning holes are matched and fixed; the fixing part includes a sixth sub-fixing part, and the sixth sub-fixing part is matched and fixed with the sixth positioning hole.
  • a symmetry axis passing through the center of the control panel body can be set, and the fourth, fifth and sixth positioning holes can be determined based on the symmetrical positions of the axis .
  • the axis may be a straight line at an angle of 45° to the straight line passing through the center of the control panel body and the first positioning hole, or it may be a straight line at other angles.
  • the actual symmetrical position may have a certain error, for example, compared with the ideal symmetrical position, there may be a deviation in both the radial and circumferential directions relative to the center of the control panel body, such as a deviation of less than 20%, more preferably 10% The following deviations.
  • Figure 10 shows a schematic diagram of the arrangement of positioning holes on the back and front of a control panel according to one embodiment of the present disclosure.
  • the control panel has a substantially octagonal outer edge, and the shaded area on its periphery represents the portion in contact with the surrounding support skeleton of the supporting middle frame. No pilot holes are provided in this section.
  • the second through hole 10a, the flexible circuit board connector 10b, the touch unit connector 10c, the touch unit connecting wire 10d and the flexible circuit board 10e are all on the longitudinal centerline of the display module.
  • the touch unit connector 10c is in the central 1/3 width area, and is shown in the center in the figure.
  • the touch unit connection line 10d extends from the touch unit connector 10c to the lower area.
  • the flexible circuit board connector 10b is in an area above the touch unit connector, and the second through hole 10a is above the flexible circuit board connector 10b, for example, 4 mm ⁇ 0.5 mm away from it.
  • the first positioning hole 1 is provided above the first through hole 1005, more preferably on the center line, as a fixed support position for the upper edge.
  • a second positioning hole 2 is provided below the touch unit connector 10c and outside the range of the touch unit connection line 10d. From the perspective of the centrally symmetrical design principle, the second positioning hole on the lower edge should be set at the centrally symmetrical position of the first positioning hole, that is, the lower end of the center line.
  • the touch unit connection cable is not wrapped in a rubber sleeve, it is a soft cable.
  • a positioning hole is provided on the extension path of the touch unit connection line, a protruding fixed head will be formed at the corresponding position of the control board on the side away from the main body plate (that is, toward the side of the touch unit connection line), which will affect the touch control. unit connection cable, thus affecting touch stability. Therefore, the positioning hole design needs to avoid the touch unit connection line, and select the positioning point 2 next to the touch unit connection line and on the left or right side of the board edge. In the figure, the anchor point 2 is selected on the left side.
  • a third positioning hole 3 is provided as a middle positioning hole between the flexible circuit board connector 10b and the touch unit connector 10c.
  • the second positioning hole 2 and the third positioning hole 3 are located on the same side of the center line, which is the left side in the figure. Selecting the same side makes it easy to set the other three positioning holes by diagonal lines with a 45° angle as described below, and for other connectors such as the power input connector 10g and the speaker connector, which are set on both sides 10h provides stable support.
  • the right picture of Figure 10 shows the front side of the control panel accordingly.
  • the first positioning hole can mainly fix the upper edge
  • the second positioning hole can mainly fix the lower edge
  • the fourth and fifth positioning holes can fix the right edge and the left edge accordingly.
  • the third and sixth positioning holes are used for fixing the central part. This is consistent with the design idea of the present disclosure having 3-4 support fixing columns arranged in the peripheral area of the main body plate and 1-2 arranged in the central area of the main body plate.
  • Such a six-point positioning hole arrangement is particularly suitable for the aforementioned device layout with the flexible circuit board connector and touch unit connector located in the center line and the power input connector, speaker connector and Wifi connector located on both sides.
  • the power input connector on the left is supported by the second, third and fifth positioning holes; the speaker connector on the right is supported by the fourth and sixth positioning holes.
  • They, as well as the flexible circuit board connector and touch unit connector accessories, all have at least two positioning hole points to provide support and increase stability.
  • the third positioning hole is located in the upper left middle area and provides support between the flexible circuit board connector, the power input connector and the touch unit connector.
  • the sixth positioning hole is located in the lower right middle area and provides support between the touch unit cable, speaker connector and Wifi.
  • the third positioning hole is selected to be on the same side of the centerline as the larger power input connector to provide stronger support.
  • the shape of the control panel is one of a circle, an ellipse, or an N-gon, where N is greater than or equal to 4.
  • a control panel is suitable for regular-shaped display modules, which is conducive to beautiful appearance, and is symmetrical, making it easy to design and process cloth wiring. More preferably, an octagonal shape may be used. Under the same circumscribed circle diameter, it is easier to process than circular, oval and more polygonal control boards, and provides more area for cloth parts than quadrilateral or hexagonal control boards.
  • the supporting side of the main body panel may have a limiting inner edge corresponding to the shape of the control panel.
  • the limiting inner edge can be designed to be substantially octagonal.
  • the maximum length of a line segment cut through the center point of the control panel on the extension surface of the control panel is less than or equal to 20 cm.
  • the radius of the control panel may be less than or equal to 100mm.
  • the fixing method and cloth wiring method of the present disclosure are particularly suitable for small-sized display modules.
  • 3-4 of the supporting fixed columns are arranged in the peripheral area of the main body plate, and the distance from the edge of the main body plate is less than 1/4 of the plate width, and 1-2 of the supporting fixed columns are arranged on the main body.
  • the central area of the plate is arranged so that the distance from the centroid of the main plate is less than 1/4 of the plate width.
  • Positioning holes are arranged at corresponding positions on the control panel.
  • Slab width is the distance between the edge of the slab through the centroid and a straight line passing through the supporting fixed columns. For example, for a circular plate, the width of the plate is its diameter.
  • 3-4 support fixed points near the edge can ensure the overall uniformity and stability. More preferably, four support fixing points are provided near the edge to ensure stable support.
  • At least one positioning hole is provided in the control panel within a distance of 5-10 mm for any connector or external patch cord interface. That is, positioning holes are provided near these devices with interfaces, so that they can be stabilized by supporting fixing posts accordingly.
  • connectors and external plug-in interfaces require plugging and unplugging of wires.
  • the corresponding supporting and fixing columns can resist damage to the interface caused by local stress caused by vigorous plugging and unplugging of wires, pressing of the piano cover, etc.
  • these connectors or interfaces are provided with stable support and fixation without affecting their installation and wiring.
  • the shape of the display unit is one of a circle, an ellipse, or an N-gon, where N is greater than or equal to 4.
  • the display unit can also have the above-mentioned preferred shape to facilitate processing, installation and full utilization of space.
  • the front face of the support midframe is made from replaceable mold inserts.
  • the insert is a removable part of the mold that can be replaced when different products are required to produce different shapes. Therefore, the supporting middle frame with the same edge shape can be used to embed display units of different shapes.
  • a universal circular or rectangular support middle frame can be made, and the front side is prepared from different inserts to obtain different display unit embedded parts, which can replace display units of different sizes and shapes.
  • the edge of the supporting middle frame has buckles.
  • the buckle 2015 can easily snap the back side of the supporting middle frame into the electronic device of the whole machine.
  • adhesive can be applied to the retaining wall supporting the middle frame, and the display module can be pasted onto the entire machine. Compared with sticking, the advantage of buckles is that they are easy to install quickly.
  • the buckles may be located further protruding from the side of the support and distributed around the periphery of the middle frame of the support. In one embodiment, the buckle may protrude further from the side of the first sub-support. In some embodiments, the buckle and the first sub-support side are an integral structure.
  • the number of buckles can be selected according to the specific buckle conditions of the whole machine. Preferably, it is 2-6, and more preferably, it is 4. It is preferable to have 4 buckles evenly distributed on the circumference, which can provide a firmer connection with the whole machine and prevent it from falling off.
  • foam glue is pasted on the edge of the middle supporting frame.
  • Foam rubber can play a shock-absorbing role, attenuating the vibration transmitted from the whole machine, thereby further increasing the reliability of the display module.
  • the display unit is a liquid crystal display module (LCM).
  • LCD liquid crystal display module
  • Other types of display units can also be selected.
  • the outer size of the display module is a circle with a diameter of less than 200 mm, more preferably a circle with a diameter of less than 100 mm, and more preferably a circle with a diameter of less than 90 mm.
  • Such small size display modules are particularly suitable for use with embodiments of the present disclosure.
  • the present disclosure also provides a method for preparing the above-mentioned display module, wherein the control board is assembled to the supporting middle frame through the following steps:
  • a non-heat-pressed support middle frame wherein the support portion of the support fixed column has a hot-melt plastic rod, and the height of the hot-melt plastic rod is greater than the positioning hole;
  • the fixed head is allowed to cool and solidify.
  • FIGS 17 and 18 schematically illustrate the hot pressing step.
  • the hot-melt equipment forms the fixed head 180132b by hot-pressing the hot-melt plastic rod 170133.
  • the hot-melt plastic rod 170133 passes through the positioning hole on the control panel 1702 and is placed in the hot-melt laminating equipment.
  • the jig is fixed to ensure that the components are covered and protected by the jig, and only the positioning column hole area is exposed.
  • the diameter of the hot-melt plastic rod is designed to be a minimum diameter of 1.2mm for conventional plastic non-high-precision molds, and the height is set to 1mm higher than the back of the control panel.
  • the customized hot-melt indenter 1710 corresponds to the hot-melt plastic rod, and the diameter of the hot-melt indenter can be slightly larger than the hot-melt plastic rod, about 2 mm. Driven by a servo motor, the hot pressing position accuracy can reach ⁇ 0.01mm. Control multiple hot press heads to move the hot-pressed hot-melt plastic rod. The top material of the plastic positioning column melts at high temperature and compresses the height. Finally, as shown in Figure 18, the fixed head 180132b is shaped like a "round cake" with a diameter of about 2mm, and the control panel is pressed tightly. . Cooperate with the supporting part of the supporting fixed column under the control panel to ensure that the control panel will not deform vertically.
  • the height difference between the hot-melt plastic rod and the positioning hole can be appropriately selected so that a fixed head that is enough to cover the positioning hole but not too large or too thick can be formed after heat-melting.
  • the hot melt pressing method of the present invention can conveniently fix the control panel to the main body plate supporting the middle frame.
  • the display module of the present disclosure can be installed into a complete electronic device.
  • the present disclosure provides an electronic device including the display module.
  • the display module can be installed on the whole machine by snapping or sticking.
  • the electronic device is a household appliance including a motor.
  • Household appliances containing motors are exposed to high temperatures and strong vibrations during operation.
  • the display module of the present disclosure can effectively reduce damage and failure in this situation.
  • the household appliance including the motor is a household cleaning appliance.
  • the household cleaning appliance is, for example, a handheld vacuum cleaner.
  • the touch slider in some embodiments of the present disclosure is particularly suitable for one-handed operation during use of household cleaning appliances.
  • the assembly steps of the display module are as follows:
  • the hot-pressing head presses the hot-melt plastic column to form a fixed head.
  • the MCU is sandwiched between the fixed head and the support part and fixed to the support middle frame.
  • Figure 19 schematically shows a touch slider.
  • 19m is a touch button, which can perform operations such as switching and selection.
  • 19n is the touch slider part. By sliding up and down with your hand, you can adjust the working power, light brightness, menu switching and other operations.
  • Figure 20 shows the connection between the remote interface of the touch unit connection line and the touch unit connector.
  • the remote interface of the touch unit cable is a hard male connector. Therefore, the touch unit connector needs to be set in the central 1/3 area to leave at least 2 times the male length for installation.
  • Figure 21 is an exterior view of an assembled embodiment of the present disclosure.
  • the prepared display module including the touch slider is installed on the handheld vacuum cleaner through buckles. After testing, the display module will not fail after operation, the touch slider is easy to operate, and the product is small and beautiful.
  • the display module of the present disclosure can be a small module and has excellent resistance to high temperature and strong vibration, and the implementation including the aforementioned technical details also has a variety of excellent technical effects.

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Abstract

一种显示模组,具有支撑中框(101)和透明盖板(104),支撑中框(101)具有与透明盖板(104)延伸方向相同的主体板部(1011)以及环绕主体板部(1011)设置的支撑侧边,支撑中框(101)与透明盖板(104)构成第一容纳空间;显示单元(103),显示单元(103)位于第一容纳空间中;控制板(102),控制板(102)位于主体板部(1011)远离显示单元(103)的一侧,控制板(102)与显示单元(103)电连接,用于给显示单元(103)传递显示信号;支撑中框(101)还具有至少一个固定部,固定部位于主体板部(1011)远离显示单元(103)的一侧,用于固定控制板(102)。还提供显示模组的制备方法和具有显示模组的电子装置。

Description

显示模组、其制备方法和包含其的电子装置 技术领域
本公开涉及电子技术领域,具体地涉及一种显示模组、其制备方法和包含其的电子装置。
背景技术
显示模组是可以安装到电子装置上用于提供显示功能的模组。典型地,显示模组具有支撑构件和固定于支撑构件上的显示单元以及用于控制显示单元的控制电路板,并且安装到电子装置例如商用和家用电器上。
许多电器不可避免地发生震动。例如,商用开关门以及家用清洁电器如吸尘器、电拖把等的电机运行时可能导致电器的整体强烈震动。同时,电机工作温度高,使得显示模组处于高温环境下。用于这样的电子装置的显示模组需要能够在高温环境下禁受强烈震动而不发生损坏。此外,出于美观和便携的需要,这些显示模组还需要小型化。随着模组小型化,电路板尺寸变小,对电路板上众多连接器的布局提出了更高要求。
对于用于电子装置的显示模组,仍存在着改进的需要。
概述
在一个方面,本公开提供一种显示模组,包括:
支撑中框和透明盖板,所述支撑中框包括与所述透明盖板延伸方向相同的主体板部以及环绕所述主体板部设置的支撑侧边,所述支撑中框与所述透明盖板构成第一容纳空间;
显示单元,所述显示单元位于所述第一容纳空间中;
控制板,所述控制板位于所述主体板部远离所述显示单元的一侧,所述控制板与所述显示单元电连接,用于给所述显示单元传递显示信号;
所述支撑中框还包括至少一个固定部,所述固定部位于所述主体板部远离所述显示单元的一侧,用于固定所述控制板。
可选地,所述固定部为支撑固定柱,所述支撑固定柱包括位于靠近所述主体板部一侧的支撑部以及位于远离所述主体板部一侧的连接部;
所述连接部包括限位部以及固定头部,所述限位部的一端与所述支撑部连接,另一端与所述固定头部连接;
所述控制板包括贯通所述控制板的定位孔,所述限位部贯穿所述定位孔,所述支撑部与所述固定头部分别位于所述控制板的两侧,并与所述限位部配合以固定所述控制板。
可选地,所述固定部的材料包括热熔材料。
可选地,所述显示单元与所述控制板之间通过柔性电路板电连接;
所述主体板部包括第一通孔,所述柔性电路板贯穿所述第一通孔;
可选地,所述控制板包括第二通孔,所述柔性电路板贯穿所述第二通孔,并且连接于所述控制板远离所述主体板部的一侧;
所述显示模组还包括密封胶带,所述密封胶带在所述控制板延伸面上的正投影覆盖所述第二通孔。
可选地,所述支撑侧边与所述主体板部构成第二容纳空间,所述控制板的至少部分位于所述第二容纳空间内;
所述支撑侧边包括第一子支撑侧边,所述第一子支撑侧边环绕所述控制板设置,所述第一子支撑侧边构成所述第二容纳空间的侧面围挡;
所述控制板与所述第一子支撑侧边的缝隙填充有密封胶。
可选地,所述透明盖板与所述支撑侧边靠近所述透明盖板的一侧固定;
所述第一容纳空间和所述第二容纳空间整体构成密闭空间。
可选地,所述支撑侧边包括平行设置的第二子支撑侧边和第三子支撑侧边,其中,所述第二子支撑侧边相比于所述第三子支撑侧边更靠近所述显示单元,所述第二子支撑侧边与所述主体板部直接连接;
所述控制板包括指示灯,所述指示灯位于所述控制板靠近所述透明盖板的一侧;所述第二子支撑侧边与所述第三子支撑侧边之间存在间隙,在所述指示灯工作时,所述指示灯发出的光可以通过所述间隙射向所述透明盖板,并穿过所述透明盖板射出。
可选地,所述透明盖板包括盖板主体以及位于所述盖板主体靠近所述显示单元一侧的滤光层;所述滤光层包括透明区以及环绕所述透明区设置的遮光区,所述透明区用于透过显示单元发出的光;
所述滤光层还包括半透过区,所述半透过区用于在所述指示灯工作时 透过所述指示灯发出的光,且在所述指示灯不工作时呈现与所述遮光区相同或相近的颜色。
可选地,所述支撑侧边包括多个第四子支撑侧边,所述第四子支撑侧边连接所述第二子支撑侧边与所述第三子支撑侧边;
所述第四子支撑侧边沿平行于所述控制板延伸平面的方向延伸;
所述第四子支撑侧边靠近所述控制板设置。
可选地,所述控制板包括第二通孔,所述柔性电路板贯穿所述第二通孔,并且连接于所述控制板远离所述主体板部的一侧;
所述控制板包括控制板主体,以及设置在所述控制板主体背离所述主体板一侧的柔性电路板连接器,所述柔性电路板连接器与所述第二通孔相邻设置,所述柔性电路板连接器包括柔性电路板连接端;
所述第二通孔为条形通孔,所述柔性电路板连接端的延伸方向与所述第二通孔的延伸方向相同;
所述第二通孔位于所述控制板的边缘,所述柔性电路板连接器相比于所述第二通孔更靠近所述控制板的中心。
可选地,所述控制板主体上包括位于所述第二通孔与所述控制板主体第一边缘之间的第一定位孔;所述第一定位孔的中心在所述第二通孔靠近所述第一定位孔一侧的孔沿的正投影位于所述孔沿整体长度的中间1/3段内;
所述固定部包括第一子固定部,所述第一子固定部与所述第一定位孔配合固定。
可选地,所述控制板包括位于所述控制板主体远离所述主体板部一侧设置的触控单元连接器;
当以所述控制板主体的中心为原点在所述触控单元连接器所在的面上做圆,且所述圆的面积覆盖所述控制板面积的1/9时,所述触控单元连接器在所述控制板主体的正投影的中心位于所述圆内。
可选地,所述触控单元连接器包括触控单元连接端,所述触控单元连接端设置为使所述触控单元连接线背离所述柔性电路板连接器方向延伸。
可选地,所述显示模组包括触控单元,所述触控单元通过所述触控单元连接线与所述触控单元连接端连接;
所述控制板主体包括与所述控制板第二边缘相邻设置的第二定位孔,所述第二边缘位于所述第一边缘相对的一侧;
所述第二定位孔与所述触控单元连接线相邻设置;
所述触控单元连接线在所述控制板上的正投影与所述第二定位孔无交叠;
所述固定部包括第二子固定部,所述第二子固定部与所述第二定位孔配合固定。
可选地,所述控制板包括位于所述控制板主体远离所述主体板部一侧设置的电源输入连接器;
所述电源输入连接器位于所述触控单元连接线的轴线在所述控制板主体表面上的正投影分割所述控制板主体表面的一侧;
所述电源输入连接器包括电源输入连接端,所述电源输入连接端设置为使所述电源连接线向所述控制板主体边缘方向延伸,且延伸方向与所述触控单元连接线的延伸方向呈0°与180°以外的角度。
可选地,所述控制板包括位于所述控制板主体远离所述主体板部一侧设置的喇叭连接器;
所述喇叭连接器位于所述触控单元连接线的轴线在所述控制板主体表面上的正投影分割所述控制板主体表面的与所述电源输入连接器不同的一侧;
所述喇叭连接器包括喇叭连接端,所述喇叭连接端设置为使所述喇叭连接线向所述控制板主体边缘方向延伸,且延伸方向与所述触控单元连接线的延伸方向呈0°与180°以外的角度。
可选地,所述电源输入连接端和所述喇叭连接端设置为使所述电源输入连接线以及所述喇叭连接线的延伸方向相反;
所述电源输入连接端设置为使所述电源输入连接线的延伸方向与所述触控单元连接线的延伸方向垂直。
可选地,所述控制板主体还包括第三定位孔,所述第三定位孔位于所述柔性电路板连接器与所述触控单元连接器之间;
所述第三定位孔与穿过所述触控单元连接器在所述控制板主体上的正投影的中心和所述柔性电路板在所述控制板主体上的正投影的中心的 连线所在直线不交叠;
所述固定部包括第三子固定部,所述第三子固定部与所述第三定位孔配合固定。
可选地,所述控制板包括位于所述控制板主体远离所述主体板部一侧设置的处理单元。
可选地,所述控制板还包括Wifi模块、蓝牙模块、温度感应模块、湿度感应模块、加速度感应模块、重力感应模块、气体探测模块、地理位置定位模块中的一种或多种。
可选地,所述控制板主体包括第四定位孔和第五定位孔,所述第四定位孔和第五定位孔均靠近所述控制板主体的边缘设置;其中,所述第四定位孔位于所述第一定位孔与所述第二定位孔延所述控制板主体边缘顺时针行进的连线上;所述第五定位孔位于所述第一定位孔与所述第二定位孔延所述控制板主体边缘逆时针行进的连线上;
所述第四定位孔和第五定位孔设置为使所述第一、第二、第四、第五定位孔到所述控制板中心做连线时,每两个连线所构成的夹角大于或等于45度;
所述固定部包括第四子固定部,所述第四子固定部与所述第四定位孔配合固定;所述固定部包括第五子固定部,所述第五子固定部与所述第五定位孔配合固定。
可选地,所述控制板主体包括第六定位孔,所述第六定位孔与所述第三定位孔分别位于穿过所述触控单元连接器在所述控制板主体上的正投影的中心和所述柔性电路板在所述控制板主体上的正投影的中心的连线所在直线两侧;
所述第六定位孔与所述控制板主体边缘的最小距离距离远于所述第一、第二、第四、第五定位孔中的任意一个与所述控制板主体边缘的最小距离;
所述固定部包括第六子固定部,所述第六子固定部与所述第六定位孔配合固定。
可选地,所述控制板主体包括第四、第五、第六定位孔,所述第一、第三、第三分别与第四、第五、第六定位孔相对于一条穿过所述控制板主 体中心的轴线呈轴对称分布;
所述固定部包括第四子固定部,所述第四子固定部与所述第四定位孔配合固定;所述固定部包括第五子固定部,所述第五子固定部与所述第五定位孔配合固定;所述固定部包括第六子固定部,所述第六子固定部与所述第六定位孔配合固定。
可选地,所述控制板的形状为圆形、椭圆形、或N边形中的一种,其中N大于或等于4。
可选地,过所述控制板中心点在所述控制板延伸面上截取线段的最大长度小于或等于20cm。
可选地,所述显示单元的形状为圆形、椭圆形、或N边形中的一种,其中N大于或等于4。
在另一个方面,本公开提供一种上述显示模组的制备方法,其中,所述通过以下步骤将所述控制板组装至所述支撑中框:
提供未热压的支撑中框,其中所述支撑固定柱的支撑部上具有热熔塑料杆,所述热熔塑料杆的高度大于所述定位孔;
将所述热熔塑料杆穿过所述定位孔,使所述控制板的一侧接触所述支撑部;
使用热熔压头对所述热熔塑料杆伸出所述定位孔的部分加热加压,使其变形为所述固定头部并与所述控制板的远离所述主体板部的一侧接触;
使所述固定头部冷却固化。
在又一个方面,本公开提供一种包含根据上述显示模组的电子装置。
可选地,所述电子装置是包含电机的家用电器。
可选地,所述家用电器是家用清洁电器。
附图说明
图1示出了本公开的显示模组的一个实施方案的爆炸图。
图2示出了尚未与控制板通过热熔方式结合的支撑中框的一个实施方案的外观图。
图3示出了图2的控制板的背面的正视图。
图4放大显示了图3中的支撑固定柱。
图5示出了结合后的具有固定头部的支撑固定柱。
图6示出了支撑中框的一个实施方案的正面外观图。
图7示出了图6的从中剖开的外观图。
图8示出了柔性电路板连接示意图。
图9示出了具有第一通孔的主体板部的正面图。
图10显示了根据本公开的一个实施方案的控制板的背面和正面定位孔布置示意图。
图11示出了一种支撑中框的开口方式。
图12示出了一种双色灯环的示意图。
图13是图12中顶部方框区域的放大图。
图14示出了滤光片的一个实施方案。
图15示出了滤光片的另一个实施方案。
图16显示了一个实施方案中显示模组不工作和工作时的外观。
图17和图18示意性地示出了热压步骤。
图19示意性地示出了触控滑条。
图20示出了触控滑条远端接口与触控单元连接器的连接。
图21为本公开的一个组装好的实施方案的外观图。
图22示出了控制板主体远离主体板部一侧(即控制板背面)布件走线示意图。
图23显示了本公开的一个实施方案的功能框图。
具体实施方式
显示模组通常包括显示单元和与显示单元电连接并给显示单元传递显示信号的控制板。控制板与显示单元之间的电连接可以由柔性电路板完成。为了便于应用,可以将这些部件适当地进行组装,成为显示模组。组装好的显示模组可以整体地安装到例如电子装置上。
控制板的实例可以是印刷电路板(PCB)。印刷电路板上可以具有处理芯片,例如微控制单元(MCU)。处理芯片至少可以用于控制显示单元的显示内容。柔性电路板的实例可以是可挠性印刷线路(FPC)。显示单元的实例可以是显示屏。
微控制单元又称为单片微型计算机或者单片机。在微控制单元中,把中央处理器的频率与规格做适当缩减,并将内存、计数器、USB、A/D转换、UART、PLC、DMA等周边接口与显示单元驱动电路都整合在单一芯片上,形成芯片级的计算机,从而为不同的应用场合提供各种组合控制。在本公开中,有时用MCU板作为控制板的实例。MCU板指包含微控制单元集成电路(MCU IC)的印刷集成电路板,其还可以包括FPC连接器、USB、驱动单片机、主控输入连接器、触控单元连接器、LED灯、Wifi驱动等附件。其用于控制显示单元。具体地,单片机可以从触控单元连接器或者主控输入连接器接收来自使用者的操作讯号,并且相应地处理为控制信号。对显示单元的控制信号通过FPC连接器经FPC传输至并控制显示单元的运行。对LED灯的控制信号可以通过控制板内电路控制LED灯。可以通过USB和Wifi驱动附件与外界进行数据交换。控制板还可以包括电源输入连接器,用于为控制板供电。控制板上还可以具有信号交互连接器,用于显示模组控制板与整机控制板之间传递信号。信号交互连接器与电源输入连接器可以是集成的。
在本公开的显示模组中,有时用FPC作为柔性电路板的实例。其用于将微控制单元与受其控制的显示单元进行连接。典型地,FPC可以以聚酰亚胺为基材,覆铜箔层压板,通过减去法制得。
显示模组中通过柔性电路板受控制板控制的显示单元可以是多种多样的。例如,其可以是液晶模块(LCM),即将液晶显示器件、连接件、控制与驱动等外围电路、背光源、结构件等装配在一起的组件。其还可以是其他显示屏,例如LED显示模块等。本公开对显示单元的类型不作特别的限定。
在具有控制板和显示单元的显示模组中,需要支撑部件将它们支撑和固定。相关技术中,将控制板固定到支撑部件例如支撑板的传统方式是在控制板的四角开通孔,并将穿过通孔的螺钉拧到支撑板中设置的螺母上,从而将控制板固定到支撑板。作为一个实例,根据工业化标准,通常选用平头M2.5mm螺钉,螺钉头直径5至6mm,并且在螺钉周围需预留8至10mm的安全空间。这种固定方式占用空间大,当显示模组小型化时,难以满足布件走线要求。例如采用2英寸显示单元的显示模组,其外形尺寸 通常应在100mm以下。这时,控制板可能需要集成MCU IC、FPC连接器、FPC通孔、USB、驱动单片机、主控输入连接器、触控单元连接器、LED灯、Wifi驱动等众多附件,走线空间非常有限。而且许多所需功能的连接器插线要布置在产品外形内,否则模组和使用该模组的电子装置整机可能发生空间干涉,导致无法组装。在这种情况下,也很难找到足够的空间用于将四角处的螺钉位置改动到产品内部。
显示模组的组装和固定方式还影响其性能。例如,当电子装置在高温强震动工作时,其中的显示模组中通过拧紧螺钉安装的控制板常常出现形变弯曲,而且显示模组中用于连接显示单元和控制单元的柔性电路板与其连接器之间的金手指连接常常出现偏移甚至错位,产生显示功能不良,甚至有一定比例板体线路损坏。
如果为了便于布件走线减小螺钉尺寸,一方面制备和安装成本提高,另一方面更难以在高温强震动条件下保持牢固固定。
此外,用螺钉穿过通孔固定控制板后,尽管可以基本上避免灰尘通过,但并不能防止水汽通过。水汽进入模组内部可能导致在显示面的盖板上形成冷凝物,影响显示效果。
在本公开的一个实施方案中,使用设置在支撑部件中的固定部取代螺钉来将控制板固定至支撑部件。
在本公开的一个实施方案中,提供一种显示模组,包括:
支撑中框和透明盖板,所述支撑中框包括与所述透明盖板延伸方向相同的主体板部以及环绕所述主体板部设置的支撑侧边,所述支撑中框与所述透明盖板构成第一容纳空间;
显示单元,所述显示单元位于所述第一容纳空间中;
控制板,所述控制板位于所述主体板部远离所述显示单元的一侧布置在所述主体板部的背面;所述控制板与所述显示单元电连接,用于给所述显示单元传递显示信号;
所述支撑中框还包括至少一个固定部,所述固定部位于所述主体板部远离所述显示单元的一侧,用于固定所述控制板。
本公开的显示模组利用支撑中框作为支撑部来支撑显示单元和控制板。本公开的显示模组还包括透明盖板,用于保护显示单元。透明盖板是 指至少有一部分是透明的板。具有透明部分对于显示来说是必要的。支撑中框的主体为板状,称为主体板部。支撑中框包括与透明盖板延伸方向相同的主体板部以及环绕所述主体板部设置的支撑侧边。支撑侧边可以具有与主体板部的板状形状不同的形状。
支撑中框与透明盖板可以构成第一容纳空间,用于容纳显示单元。具体地,显示单元设置在支撑主体与透明盖板之间。显示单元的出光面,或者说其正面,朝向透明盖板。支撑中框用于为显示单元和透明盖板提供支撑。
在一个具体实施例中,显示单元与透明盖板为全贴合结构,例如,主体板部与显示单元之间可以不存在相互作用力;例如,主体板部与显示单元之间可以存在缝隙,此时支撑侧边用于对透明盖板提供支撑,这样设计便于支撑中框、透明盖板以及显示单元的组装。
支撑中框还用于为控制板提供支撑。控制板位于所述主体板部远离所述显示单元的一侧,并且与显示单元电连接,用于给所述显示单元传递显示信号。
由此,主体板部的两侧分别布置显示单元和控制面板。为了描述方便,可以规定显示单元布置在其正面,控制板布置在其背面。在本公开中,“正面”或“正向”是指显示单元的出光面的方向,“背面”或“背向”是与其相反的方向。换言之,从显示模组的使用者的正常观看显示单元所显示的图像的位置看,显示单元距离在近端,控制板在远端,支撑中框位于两者之间。所有部件朝向使用者的一面称为正面,另一面称为背面。
支撑中框上具有固定部,其位于主体板部远离显示单元的一侧,即主体板部的背面,用于固定控制板。由此形成的显示模组包括透明盖板、显示单元、在主体板部上具有固定部的支撑中框和借助固定部固定的控制板。
利用位于作为支撑中框的主体板部背面的一部分的固定部而非螺钉来固定控制板,可以至少部分避免前述与螺钉固定相关的缺点。
发明人发现,通过主体板部背面的固定部替代螺钉固定,可以解决在小尺寸外形内布件走线的问题。在一个实施方案中,在控制板上设置贯穿的定位孔,并且在主体板部背面设置突出的可热熔的塑料圆柱作为固定部。将塑料圆柱穿过定位孔并且将其突出的一端热熔压平,起到如“铆接”的作 用,从而将控制板固定。与螺钉固定相比,可热熔的塑料圆柱形成的固定部不但可以尺寸明显减小以节约空间,而且其安装简便性和成本也更好。固定部至少需要一个,并且可以是多个。
而且,该显示模组易于密封封装,使得外界水汽不进入其内部空间,从而防止透明盖板的内壁凝结水汽影响显示效果。
在一个实施方案中,所述固定部为支撑固定柱,所述支撑固定柱包括位于靠近所述主体板部一侧的支撑部以及位于远离所述主体板部一侧的连接部;
所述连接部包括限位部以及固定头部,所述限位部的一端与所述支撑部连接,另一端与所述固定头部连接;
所述控制板包括贯通所述控制板的定位孔,所述限位部贯穿所述定位孔,所述支撑部与所述固定头部分别位于所述控制板的两侧,并与所述限位部配合以固定所述控制板。
控制板上可以具有至少一个定位孔,用于与主体板部上的支撑固定柱的连接部配合,将控制板固定到主体板部上。可以设置多个分布布置的支撑固定柱和相应的定位孔,以牢固地将控制板固定。
发明人出人意料地发现,当使用横截面一定的柱状体作为固定部时,若柱状体构造为直接从主体板部凸出,则当固定后,由于柱状体横截面积小,因此在柱状体底部会产生应力集中,可能导致主体板部局部在垂直板面的方向上发生形变。用于固定控制板的主体板部发生这种形变会造成控制板也发生形变和应力不均匀。特别是在高温强震动的情况下,这将极易导致控制板的损坏,进而导致显示模组失效。
针对这一问题,本公开的支撑固定柱可以包括位于靠近所述主体板部一侧的支撑部以及位于远离所述主体板部一侧的连接部。换言之,其可以包括在底部处的支撑部和在顶部处的固定部。为了描述方便,在本公开中,“底部”和“顶部”是相对于结构体所处的基底而言的。此处,支撑固定柱的底部和顶部是相对于作为其基底的主体板部而言的。即,支撑固定柱的靠近主体板部一侧的一端为其底部,远离主体板部一侧的一端为其顶部。本公开的支撑固定柱设置在主体板部的背面,可以为控制板提供垂直于主体板部板面的方向上的充足支撑。与平行于主体板部延伸方向在主体板部边 缘对主体板部进行横向支撑固定方式相比,本公开的支撑固定柱提供对控制板在其易于形变的厚度方向上的有效支撑。特别是,当其设置在模组中部时,可以有效防止控制板中部的塌陷变形。
本公开的支撑固定柱包括专门的支撑部,用于作为连接部的基础并且用于支撑控制板。连接部的限位部可以在支撑部的基础上从其中央突出,以与控制板的定位孔配合。在与控制板安装在一起后,支撑部的顶部周围可以与控制板的定位孔周围的板面接触。与其顶部上的穿过定位孔的连接部的限位部相比,支撑部具有更大的横向截面积。因此,与从主体板部直接突出限位部相比,这可以显著降低支撑固定位置的应力集中和由此导致的变形。此外,支撑部的高度将控制板与主体板部间隔开。这与当不设置支撑部时控制板与主体板部紧贴的情况相比,可以显著降低微控制单元随主体板部的震动,有效地减少失效。
支撑部远离主体板部的一侧具有连接部,其包括限位部和固定头部。限位部穿过定位孔,而固定头部则与定位孔周围控制板远离主体板部一侧的表面接触。固定头部朝向控制板的一侧与支撑部朝向控制板的一侧的间距恰为控制板的厚度,从而将控制板夹在其中。限位部则穿过定位孔,使得控制板在主体板部延伸方向上不相对于主体板部发生移动。由此,支撑部、固定头部和限位部配合,将控制板固定。
支撑部和限位部从主体板部凸出,并且可以与主体板部一体形成。
固定头部可以是与限位部同种材料且一体化的,也可以是附加结合到限位部上的。在一个实施方案中,在安装前,限位部的长度可以具有超过定位孔高度,并且超出的部分可以通过热熔加压方式形成固定头部。在另一个实施方案中,固定头部通过单独施加的胶或者单独施加的热熔材料形成并结合到限位部的顶端。
在一个实施方案中,限位部穿过定位孔并且高度与定位孔的高度相同,固定头部覆盖定位孔并且与控制板的背面接触,支撑部与控制板的正面接触,从而主体板部通过支撑部支撑控制板并且通过固定头部固定控制板。理想地,在平行于控制板延伸的平面方向,定位孔的面积可以与限位部的截面面积相同以实现最佳的限位效果。但是在实际中,定位孔的面积稍大于限位部在孔中的截面面积,以使得在组装时限位部可以容易地穿过。
固定部的材料可以包括热熔材料。热熔材料可以使得能够通过热压步骤将控制板固定至支撑中框。热熔材料的一个实例是聚碳酸酯(PC)。
在一个实施方案中,主体板部、支撑部、限位部和固定部都由同一热熔材料形成。
固定头部可以是通过对热熔材料进行热压步骤形成的,起到“铆接”的作用。
典型地,固定头部通过以下方式形成:
提供未热压的支撑中框,其中所述支撑固定柱的支撑部上具有热熔塑料杆,所述热熔塑料杆的高度大于所述定位孔的高度;
将所述热熔塑料杆穿过所述定位孔,使所述控制板的正面接触所述支撑部;
使用热熔压头对所述热熔塑料杆伸出所述定位孔的部分加热加压,使其变形为所述固定头部并与所述控制板的背面接触;
使所述固定头部冷却固化。
通过热压方式形成的固定头部完全压合控制板的背面,从而将控制板的正面牢固贴合至主体板部的支撑部的顶部。主体板部通过支撑部支撑控制板并且通过固定头部固定控制板。典型地,固定头部呈圆饼状。热压形成的固定头部还可以对定位孔起到良好的隔绝水汽的作用。
如上所述,限位部穿过定位孔,对控制板起到横向限位作用。限位部的直径远远小于常规螺钉,且固定头部的直径也远远小于常规螺钉头,从而可以节约空间。由此,显著增加了支撑固定点位的设计的灵活性,有效地解决了布件走线的问题。
通过位于主体板部背面的具有支撑部的多个支撑固定柱,可以实现能够在高温强震动情况下工作的小型化显示模组,其中的控制板不易损坏。
图1示出了本公开的显示模组的一个实施方案的爆炸图。其中,透明盖板104可以包括环形滤光片1041、盖板主体1042、双面胶带1043和保护膜1044。显示单元103在支撑中框101与透明盖板104之间的第一容纳空间中,即支撑中框101的正面。控制板102在支撑中框101的主体板部1011远离显示单元103的一侧,即支撑中框101的背面。
图1中还示出了显示模组可以任选地包含触控滑条106,其触控操作 端伸出支撑中框的边缘。使用者可以通过触控滑条对控制板进行控制,进而经由柔性电路板控制位于支撑中框正面的显示单元。
图2示出了尚未与控制板通过热熔方式结合的支撑中框201的一个实施方案的外观图。图中主要显示了其背面的情况。图中显示了主体板部2011、支撑侧边2012、支撑固定柱2013和卡扣2015。
图3示出了图2的支撑中框的背面的正视图。其中,在支撑中框301的主体板部3011上的十字形表示支撑固定柱3013。图3中还示出了在背面周边的支撑侧边3012,以及可以用于透过后述的指示灯发光的间隙3016。
图4显示了的支撑固定柱4013。可以看到,其由十字形的支撑部40131和在支撑部顶部的热熔塑料柱40132组成。当将控制板与具有这样的支撑固定柱的支撑中框安装到一起时,塑料柱40132穿过控制板上的定位孔,其顶部将受热和受压变成圆饼形的固定头部,未变形的部分成为限位部,从而将控制板固定。
图5示出了一个实施方案,其中显示了结合后的具有固定头部的支撑固定柱5013。图中,5011是支撑中框的主体板部,50131是支撑固定柱5013的支撑部,50132是固定支撑柱5013的连接部,50132a是限位部,50132b是固定头部,502是控制板,5021是定位孔。可以看到,支撑部50131、限位部50132a和固定头部50132b配合,固定了控制板502。
支撑部可以是任何合适的形状。优选地,支撑部为如图4所示的十字形,也可以是例如一字形或工字形。这些形状的支撑部形成加强筋,易于制备并且可以提供优良的机械增强和减震效果。支撑部的形状更优选为十字形,因为其强度更佳。
在一个实施方案中,所述限位部为圆柱形,直径为1.2mm±0.05mm;所述定位孔为圆筒形,直径为1.4mm±0.05mm;所述固定头部为圆饼形,直径为2.0mm±0.05mm,高度为0.4mm±0.01mm。为节约空间,限位部直径可以优选设计为常规塑料非高精度模具可的制作最小直径,约1.2mm。相应地,定位孔的尺寸比其稍大以使其穿过,为约1.4mm。固定头部的尺寸范围只要覆盖定位孔以提供牢固结合即可,并且可以尽量小以节约空间。因此,直径约2mm且厚度为约0.4mm的固定头部是合适的。
在一个实施方案中,支撑部的尺度可以和与之相对的固定头部的尺寸 基本相同,以实施固定。如图5所示,支撑部50131与固定头部50132b的尺寸基本相同。更大的支撑部也是可以的。可选地,支撑部的底部截面积可以比其顶部截面积更大,由此在节约接触面积的情况下进一步避免应力集中。
在一个实施方案中,所述支撑固定柱中的固定头部为点胶部。即,在穿过定位孔的限位部的顶部点涂胶水,随后使得胶水固化并与限位部粘合在一起,形成与限位部和支撑部配合固定控制板的固定头部。
在一个实施例中,固定头部可以通过热压的方式形成,不过,当为了拆卸控制板破坏固定头部后,原支撑固定柱不再能通过热压方式形成固定头部。对于这种情况,可以使用上述点胶方式修补拆除的固定头部。
具体地,为了和热熔一样在完成后迅速周转、包装,点胶可以选择快速固化的胶水。但为了保持胶型,优选可以使用UV固化胶替代速干胶水。此外,如果组装周期对生产速度要求较低,也可以直接使用点胶方式。备选地,也可以使用流动性低的热熔胶,涂敷后进行热熔固定。
在一个实施方案中,所述显示单元与所述控制板之间通过柔性电路板电连接;
所述主体板部包括第一通孔,所述柔性电路板贯穿所述第一通孔。
第一通孔用于使得柔性电路板可以穿过主体板部连接位于主体板部两侧的显示单元和控制板。第一通孔可以是长条形通孔。
图2中的2014和图3中的3014示出了长条形的第一通孔。
在一个实施方案中,所述控制板包括第二通孔,所述柔性电路板贯穿所述第二通孔,并且连接于所述控制板远离所述主体板部的一侧;
所述显示模组还包括密封胶带,所述密封胶带在所述控制板延伸面上的正投影覆盖所述第二通孔。
可以理解的是,当第二通孔被密封胶带密封后,可以防止水汽进入第一容纳空间,保证显示模组的显示信赖性。
当控制板上的柔性电路板连接器在控制板远离主体板部一侧时,第二通孔用于使得柔性电路板可以穿过控制板连接到柔性电路板连接器。第二通孔也可以是长条形通孔。
例如,当柔性电路板是FPC时,控制板具有第二通孔和安装在其背面 的FPC连接器。控制板上的第二通孔与主体板部上的第一通孔相对,FPC从显示单元出发,依次穿过主体板部上的第一通孔和控制板上的第二通孔,连接至FPC连接器。
第二通孔和第一通孔形成了从控制板外侧通到显示单元的通道。为了增加密封性,显示模组还包括密封胶带,所述密封胶带在所述控制板延伸面上的正投影覆盖所述第二通孔。密封胶带可以在封闭第二通孔的同时对柔性电路板起到固定作用。更优选地,密封胶带在控制板延伸面上的正投影覆盖第二通孔、柔性电路板连接器的至少部分以及在第二通孔与柔性电路板连接器之间行进的柔性电路板。这样大的密封胶带可以减少粘贴时产生缝隙的可能,提供更加有效的密封。
在一个实施方案中,在控制板背面,第二通孔由耐高温胶带密封。耐高温胶带厚度较薄且材质较软应力小,将第二通孔的四周胶带完全贴合,且柔性电路板产生热量时不会开胶,以此将产品防尘防水汽密封。
图8示出了经过第二通孔的截面结构。图中,801为支撑中框,802为控制板,803为显示单元,804为透明盖板,805为柔性电路板。柔性电路板805从显示单元803出发,经过支撑中框801的第一通孔8014和控制板上的第二通孔8022,连接到在控制板802背面的柔性电路板连接器8024。如图8所示,耐高温胶带8025密封第二通孔8022,并且还覆盖柔性电路板805和柔性电路板连接器8024。
在一个实施方案中,所述支撑侧边与所述主体板部构成第二容纳空间,所述控制板的至少部分位于所述第二容纳空间内;
所述支撑侧边包括第一子支撑侧边,所述第一子支撑侧边环绕所述控制板设置,所述第一子支撑侧边构成所述第二容纳空间的侧面围挡;
所述控制板与所述第一子支撑侧边的缝隙填充有密封胶。
图5示例性地示出了第一子支撑侧边50121。第一子支撑侧边50121成为侧面围挡,构成了容纳控制板的第二容纳空间的侧面围挡。控制板502与第一子支撑侧边5021的缝隙填充有密封胶507。具体地,密封胶507设置在控制板502与第一子支撑侧边5021的缝隙远离控制板的一侧和/或,密封胶507设置在控制板502与第一子支撑侧边5021的缝隙内。密封胶可以防止水汽和灰尘从缝隙进入显示模组内部,以此实现产品防尘防水汽 密封,也可以起到一定的固定作用。
图8也示出了作为侧面围挡的第一子支撑侧边80121。如图8所示,第一子支撑侧边80121和控制板802之间的缝隙用密封胶807密封。
顺带提及,图5的截面图示出的是经过固定部和指示灯的截面,而图8的示意图示出的是不经过固定部和指示灯,但经过第一通孔、第二通孔、柔性电路板连接器以及第四子支撑侧边的截面。
在一个实施方案中,所述透明盖板与所述支撑侧边靠近所述透明盖板的一侧固定;
所述第一容纳空间和所述第二容纳空间整体构成密闭空间。
如图5所示,透明盖板504也固定至支撑侧边5012靠近其的一侧。固定方式可以是使用密封胶粘合。透明盖板504可以包括滤光片5041和盖板主体5042。盖板主体可以是例如玻璃盖板。支撑侧边5012在其一侧固定至透明盖板并形成密封,其包括的第一子支撑边50121与控制板配合形成密封,从而第一容纳空间和第二容纳空间可以整体构成密闭空间。两者之间可以通过前述的位于主体板部上的第一通孔相互连通。但是,该空间对外部而言是密封的。在一个实施方案中,支撑中框的支撑侧边的正面与透明盖板紧密结合固定,例如可以通过密封胶粘合固定;支撑中框的背面的第一子支撑边与控制板之间的缝隙由密封胶填充;控制板中的第二通孔由密封胶带密封;控制板中的定位孔由固定头部密封。图8中也显示了同样的结构。图8中的透明盖板804的滤光层8041和盖板主体8042之间还设置有任选的双面胶8043。当滤光层是单独的滤光片时,可以使用双面胶将其粘贴到盖板主体上。当滤光层是直接形成在盖板主体上的膜层,例如直接沉积或涂覆在盖板上的膜层时,双面胶可以省略。
图6示出了支撑中框的一个实施方案的正面外观图,其中在正面嵌入了显示单元602。
图7示出了图6的从中剖开的外观图。图7示出了通过支撑中框701上的第一通孔7014和与显示单元702连接并且穿过第一通孔7014的柔性电路板705。图7中还示出了围绕主体板部的支撑侧边的一个实施方案的截面,其中包括下述的第二子支撑侧边和第三子支撑侧边。
在一个实施方案中,所述支撑侧边包括平行设置的第二子支撑侧边和 第三子支撑侧边,其中,所述第二子支撑侧边相比于所述第三子支撑侧边更靠近所述显示单元,所述第二子支撑侧边与所述主体板部直接连接,具体地,第三子支撑侧边远离第二子支撑侧边的一侧表面与第一子支撑侧边远离控制板的一侧表面可以为同一表面。同一表面可以理解为表面延伸时不存在明显段差。
具体地,支撑侧边自身可以采用一次工艺制备。具体地,第一支撑侧边、第二子支撑侧边和第三支撑侧边材料相同,并且可以采用一次工艺制备。具体地,支撑侧边与主体板部可以采用一次工艺制备。一次工艺可以是模制工艺,特别是注塑工艺。可以选用热塑性塑料注塑制备主体板和支撑侧边。
在一个具体实施例中,所述控制板包括指示灯,所述指示灯位于所述控制板靠近所述透明盖板的一侧;所述第二子支撑侧边与所述第三子支撑侧边之间存在间隙,在所述指示灯工作时,所述指示灯发出的光可以通过所述间隙射向所述透明盖板,并穿过所述透明盖板射出。
控制板可以具有安装在其正面的指示灯。指示灯的实例可以是LED灯。其可以是起装饰作用的装饰灯、指示作用的指示灯等。这样,可以在显示单元之外为用户提供额外的视觉效果。指示灯受控制板控制。由于其是控制板的部件,因此其位于主体板部远离显示单元的一侧。为了使得使用者可以在显示模组的正面看到指示灯,在支撑中框中应当设置使其发光可以通过的间隙。换言之,支撑中框可以具有与指示灯相对的指示灯出光孔。该指示灯出光孔使得位于支撑中框背面的控制板上的指示灯发出的光可以从显示模组正面射出,不被支撑中框挡住。可选地,控制板正面的指示灯设置为围绕板周边区域的灯环,以免占据中央显示单元的显示空间。周边区域不限于制作灯环,也可制作产品所需LED字符等。
相应地,在支撑中框中设置指示灯出光孔,使得位于支撑中框背面的控制板上的指示灯发出的光可以从显示模组正面射出,不被支撑中框挡住。指示灯出光孔因此设置在与指示灯相对的位置。
在一个实施方案中,指示灯出光孔是多个沿所述支撑中框的周边布置的孔。如图9中所示,可以支撑中框的周边可以布置指示灯出光孔或间隙9016。相应地,控制板的LED灯在周边排布。图12示出了一种双色灯环 的示意图。其具有内外两圈LED灯,可以显示不同的颜色,并且从周边的指示灯出光孔露出。图13是图12中顶部方框区域的放大图,可以看到内圈的LED灯13023a和外圈的LED灯13023b,在指示灯出光孔中向正面露出。在一个实施方案中,内圈可以是红色的,外圈可以是蓝色的。具体地,边圆环区域通孔对应灯环。LED灯环集成于微控制单元电路板上,分为红、蓝双色,每对红蓝LED灯为一组。每3组LED处于一个指示灯出光孔中。
图5示出了在控制板周边具有指示灯的实施方案。如图5所示,控制板502包括指示灯50237,其可以是例如LED灯。所述指示灯5023位于所述控制板靠近所述透明盖板的一侧,即其正面。当指示灯设置在主体板部外的区域,即支撑侧边区域时,如图5所示,支撑侧边可以包括平行设置的第二子支撑侧边50122和第三子支撑侧边50123,其中,所述第二子支撑侧边50122相比于所述第三子支撑侧边50123更靠近所述显示单元503,所述第二子支撑侧边50122与所述主体板部5011直接连接。第二子支撑侧边50122与第三子支撑侧边50123之间存在间隙5016,在指示灯5023工作时,指示灯发出的光可以通过所述间隙5016射向所述透明盖板504,并穿过所述透明盖板504射出。即,间隙形成指示灯出光孔。在此截面图中,第二子支撑侧边与第三子支撑侧边被间隙5016隔开。不过,第二子支撑侧边与第三子支撑侧边经过在其他截面中的连接部连接(如图8中所示的第四子支撑侧边)。
图9示出了具有第一通孔9014的主体板部901的正面图。主体板部还有用于容纳显示单元的中央凹陷部,并且周围具有用于使指示灯发光透过的间隙9016。
除了在对应于支撑侧边的区域在控制板周边环形地布置LED灯之外,也可以在对应于主体板部的某些区域的控制板区域布置LED灯。图11示出了一种在支撑中框的主体板上开口的方式。开口11017a和开口11017b是指示灯开口,即指示灯出光孔,用于露出控制板上相应位置设置的LED指示灯。中央的矩形区域示意性地示出了一种显示单元的放置位置。显示单元可以相应地具有矩形的显示区并且可以与例如图15的滤光层配合使用。在本公开的一个实施方案中,控制板可以控制对应于开口11017a位 置的LED灯组来显示数字或时间,或者控制对应于开口11017b位置的LED灯组通过亮灯个数来显示工作强度等。
在一个实施方案中,所述透明盖板包括盖板主体以及位于所述盖板主体靠近所述显示单元一侧的滤光层;所述滤光层包括透明区以及环绕所述透明区设置的遮光区,所述透明区用于透过显示单元发出的光;
所述滤光层还包括半透过区,所述半透过区用于在所述指示灯工作时透过所述指示灯发出的光,且在所述指示灯不工作时呈现与所述遮光区相同或相近的颜色。
显示模组的透明盖板可以包括滤光层或滤光片,其具有遮挡非发光区域的遮光区和露出所述显示单元显示区的透明区。如图1所示,在显示单元的正面的透明盖板中可以包含滤光片1041。滤光层可以是直接形成在盖板主体的表面上的涂层,也可以是单独的滤光片。滤光片具有遮光区,其可以由黑色油墨形成,遮挡不需要发光的区域,以使产品美观。对应于显示单元则是透明的区域。图14示出了滤光层的一个实施方案,其中具有遮光区14041a和透明区14041c。透明区可以是没有材料的中空区域。图14所示的滤光层可以是一个环形滤光片。图15示出了滤光层的另一个实施方案,其中具有遮光区15041a和透明区15041c。其可以与如图11所示的支撑中框配合使用。
在一个实施方案中,滤光层中还可以包括半透过区,半透过区用于在指示灯工作时透过指示灯发出的光并将指示灯的光线散射从而均匀显示,且在指示灯不工作时呈现与遮光区相同或相近的颜色。半透过区与完全透明的透明区的区别在于其本身可以具有颜色,并且可以使通过它的光发生散射,使其看起来更加均匀和柔和。半透过区可以是光散射区。半透过区可以通过在白色扩散油墨表面覆盖一层黑色半透明膜形成。图14示出了半透过区14041b,图15示出了半透过区15041b。图5示出了滤光层的遮光区5041a、半透过区5041b、透明区5041c。透明区用于显示单元发光,半透过区用于指示灯发光。其中图8中,滤光层也具有同样形式的遮光区8041a、半透过区8041b、透明区8041c。
当组装在显示模组中后,半透过区在指示灯不工作时呈现与遮光区相同或相近的颜色。相近的颜色是指使用者在正常使用距离下难以区分开的 颜色。在一个实施方案中,当在正常使用距离下观看时,半透过区与相邻的遮光区颜色都基本为黑色,看上去融为一体。由此,可以显示全黑屏幕,呈黑色镜面状态,更加美观。显示模组工作时,中央区域显示单元正常显示开机画面和工作界面,指示灯区域则根据工作情况亮灯。
图16显示了一个实施方案中显示模组不工作(左图)和工作时的外观(右图)。可以看到,不工作时其显示纯黑外观,工作时可以从透明区观看显示单元的显示并且从半透过区观查指示灯的点亮。不工作时半透过区的黑色外观可以由选用灰色光散射膜并将其与灰色盖板主体叠加来实现。灰色盖板主体可以是灰色玻璃。
在一个实施方案中,所述支撑侧边包括多个第四子支撑侧边,所述第四子支撑侧边连接所述第二子支撑侧边与所述第三子支撑侧边;
所述第四子支撑侧边沿平行于所述控制板延伸平面的方向延伸;
所述第四子支撑侧边靠近所述控制板设置。
前述的第三子支撑侧边和第二子支撑侧边之间需要有连接部,使得第三子支撑侧边可以间接地连接到主体板部。连接部设置在不需要指示灯的发光通过的位置,例如可以设置在前述间隙之间。可选地,此连接部可以是同时还为控制板提供辅助支撑的第四子支撑侧边。
第四子支撑侧边起到连接第二和第三子支撑侧边并且支撑控制板的作用。如图8所示,第二子支撑侧边80122和第三子支撑侧边80123通过第四子支撑侧边80124连接。第四子支撑侧边80124沿平行于控制板802延伸平面的方向延伸,并且靠近控制板802设置,可以起到在显示模组周边辅助支撑控制板802的作用。如图8所示,第四子支撑侧边设置在控制板没有指示灯的位置,不会影响指示灯发光,并且恰可以有效地支撑控制板。
具体地,第四子支撑侧边与第二和第三子支撑侧边可以均在一次工艺中形成。
具体地,第四子支撑侧边与第一、第二和第三子支撑侧边可以均在一次工艺中形成。
本公开的控制板可以因为子支撑边和/或固定支撑柱的支撑部的存在而与支撑中框的主体板部不直接完全贴合,而是留有间隙。与主体板部之 间的间隙可以有利于控制板的均匀散热和/或抗震。
本公开的显示模组的结构使用了在支撑中框远离显示单元一侧的固定部,特别是支撑固定柱,代替常规的螺钉固定。这不但有利于显示模组的减震、密封等性能,也为小尺寸显示模组的布件走线提供了极大的灵活性。
显示模组中的控制板上布置有多种电子元件,各自实现不同的功能。控制面板上设置多个功能单元,以及为这些功能单元供电的电源元器件和控制这些功能模块的处理器。
图23显示了本公开的一个实施方案的功能框图。该显示模组具有显示单元、无线通讯模块、存储单元如USB和闪存、音频单元(例如包括音频放大器及与之相连的喇叭连接器)、触控单元、LED指示灯单元(例如包括LED单片机及与之相连的LED灯)。显示模组具有控制上述模块的处理单元。显示模组还具有电源元器件,用于为各个单元供电。
在图中,处理单元可以与这些功能单元进行交互通讯或对它们进行控制,而电源输入连接器以及Buck降压式变换电路则可以为各个功能单元提供所需的工作电压。
具体地,电源输入连接器连接外部电源,从而为整个显示模组供电。其可以向处理单元、USB、LED单片机及、无线通讯模块等直接供电,例如提供5V的电压。其也可以经过变压器件如BUCK降压式变换电路输出较低的电压,例如可以为显示单元提供2.8V的电压,或者为处理单元中的器件提供1.1V、1.8V、3.3V等电压。处理单元可以与USB、闪存、Wifi、蓝牙、触控单元等单元进行通讯和数据交换。处理单元可以控制显示单元,实例可以是2.1英寸的LCD显示屏。处理单元还可以控制LED单片机,进而控制LED灯。处理单元可以具有音频处理器,其连接音频放大器,进一步连接喇叭连接器,用于为外设的扬声器提供声音信号。处理单元可以受触控单元控制。应当理解,图23的功能框图仅是为示意性地说明显示模组的一般工作原理,并且不限制本公开的显示模组的功能。
本公开的显示模组中还可以包括其他功能模块,例如温度感应模块、湿度感应模块、加速度感应模块、重力感应模块、气体探测模块、地理位置定位模块等。它们均可以由处理单元进行控制或访问,并且由电源元器 件供电。
本公开还提供了显示模组内的布件走线和定位孔/支撑固定柱的位置设计方案。
在一个实施方案中,控制板包括第二通孔,所述柔性电路板贯穿所述第二通孔,并且连接于所述控制板远离所述主体板部的一侧;
所述控制板包括控制板主体,以及设置在所述控制板主体背离所述主体板部一侧的柔性电路板连接器,所述柔性电路板连接器与所述第二通孔相邻设置,所述柔性电路板连接器包括柔性电路板连接端;
所述第二通孔为条形通孔,所述柔性电路板连接端的延伸方向与所述第二通孔的延伸方向相同;
所述第二通孔位于所述控制板的边缘,所述柔性电路板连接器相比于所述第二通孔更靠近所述控制板的中心。
柔性电路板连接器作为控制板的组件可以位于控制板背面,即远离主体板部的一侧,用于连接柔性电路板。其可以具有允许柔性电路板端口插接柔性电路板连接端,例如金手指。第二通孔可以为条形通孔,以使扁平的柔性电路板穿过。柔性电路板连接端的延伸方向与第二通孔的延伸方向相同,即两者平行。这样,柔性电路板在穿过第二通孔后可以不经扭转地插入柔性电路板连接器。柔性电路板连接器是体积较大的器件,其可以靠近控制板中心设置。与之相比,通孔可以更远离中心。这种布件走线方式有利于柔性电路板的插接安装,并且还避免柔性电路板发生大的弯折。
图22示出了控制板主体远离主体板部一侧(即控制板背面)布件走线示意图。图中示出了第二条形通孔22a和柔性电路板连接器22b,两者相邻设置且延伸方向一致。柔性电路板连接器22b更靠近控制板中心。柔性电路板22e穿过第二条形通孔22a后可以连接到柔性电路板连接器上边缘的柔性电路板连接器连接端(灰色区域)。
柔性电路板穿过第二通孔后直接出线,出线下方对应柔性电路板连接器。柔性线路需要尽可能避免死折。柔性电路板出线下方不可有元器件,以避免刺穿短路。因此,柔性电路板连接器位于第二通孔下方4mm±0.5mm处是合适的。
在一个实施方案中,所述控制板主体上包括位于所述第二通孔与所述 控制板主体第一边缘之间的第一定位孔;所述第一定位孔的中心在所述第二通孔靠近所述第一定位孔一侧的孔沿的正投影位于所述孔沿整体长度的中间1/3段内。
在一个具体实施例中,所述固定部包括第一子固定部,所述第一子固定部与所述第一定位孔配合固定。
第一定位孔可以靠近控制板主体的第一边缘。第一边缘是最接近第二通孔的边缘,如图22中所示的在第二通孔上方的上边缘。第一定位孔优选位于主体板部的接近中线上,增加柔性电路板连接器附近的位置的承载力,尤其增加其高振动使用环境下的信赖性。图22中①示出了该第一定位孔,其中心在所述第二通孔靠近所述第一定位孔一侧的孔沿的正投影位于所述孔沿整体长度的中间1/3段内,如两条虚线之间的位置。
在一个实施方案中,所述控制板包括位于所述控制板主体远离所述主体板部一侧设置的触控单元连接器;
当以所述控制板主体的中心为原点在所述触控单元连接器所在的面上做圆,且所述圆的面积覆盖所述控制板面积的1/9时,所述触控单元连接器在所述控制板主体的正投影的中心位于所述圆内。
触控单元连接器不能过于贴近边缘,否则不利于安插触控单元连接线。此外,设置在中心也更便于得到固定支撑柱的有效支撑,其中心优选设置在上述参考圆内。图22中,触控单元连接器22c位于虚线所绘的参考圆中。进一步优选地,控制板主体的中心位于触控单元连接器在所述控制板主体的正投影内。这样,触控单元连接器不但中心靠近控制板主体中心,而且本身占据控制板主体中心,结构更加稳固。
在一个实施方案中,所述触控单元连接器包括触控单元连接端,所述触控单元连接端设置为使所述触控单元连接线背离所述柔性电路板连接器方向延伸。
图22中示出了位于触控单元连接器下端的触控单元连接端,由灰色示出。连接到触控单元连接器的触控连接线将向下延伸,背离上方的柔性电路板连接器,避免与之发生空间冲突或干涉。
触控单元连接线、触控单元连接器、柔性电路板连接器、柔性电路板、和第二通孔都基本在显示模组的纵向的中线上,触控单元连接器在中央 1/3宽度区域内,触控单元连接线从触控单元连接器向下方区域延伸,柔性电路板连接器在触控单元连接器的上方的区域内,第二通孔在柔性电路板连接器的上方距离4mm±0.5mm处。
在一个实施方案中,所述显示模组包括触控单元,所述触控单元通过所述触控单元连接线与所述触控单元连接端连接;
所述控制板主体包括与所述控制板第二边缘相邻设置的第二定位孔,所述第二边缘位于所述第一边缘相对的一侧;
所述第二定位孔与所述触控单元连接线相邻设置;
所述触控单元连接线在所述控制板上的正投影与所述第二定位孔无交叠;
所述固定部包括第二子固定部,所述第二子固定部与所述第二定位孔配合固定。
如图22中所示,触控单元连接线22d的上端插入触控单元连接器的连接端,下端连接至触控单元22f。
触控单元连接线基本位于显示模组的中线上,位于显示单元下方,便于使用者操作其近端的触控单元。触控单元是一种适合用户单手操作的部件,应符合人体工学操作方便和美观。当触控单元处于显示单元中心线正下方时,既美观又便于使用者在观看显示单元显示图像时在近端操作。如上所述,触控单元连接器也基本在显示模组的纵向中线上。安装时,需要将触控单元连接线插入触控单元连接器。由于插线接口公头为硬质接口,且支撑中框外边缘通常有挡墙,因此需在插线方向预留2倍公头长度以确保插线不受阻碍。因此,触控单元连接器优选在中央1/3宽度区域内。触控单元连接线与柔性电路板组件应当位于触控单元连接器的相反方向上。即,当触控单元连接线向下延伸时,柔性电路板通孔和柔性电路板连接器应当设置在触控单元连接器的上方。原因如下:柔性电路板为主要发热器件,不应与其它线路重叠;触控单元连接线为软线路,避免与硬质器件例如柔性电路板连接器重叠;此外,各种线路的交叉重叠也可能产生信号干扰。
具体地,触控单元连接线使用材质一般为PET薄片,与电源等线材不同。电源线材通常为铜线外包裹绝缘层,绝缘层材料为PVC(聚氯乙烯), 对弯折、扭曲或剐蹭有良好抗性。但是,触控单元连接线在凸点上方则易被刺破造成线路异常。所以,其附近固定部应避开触控单元连接线的走线位置。因此,控制板的与第一边缘相对的第二边缘(图22中为下边缘)附近的定位孔位置可以设计为与第一边缘附近的第一定位孔相对于控制板中心不是中心对称。
如图22中②所示,第二定位孔与触控单元连接线在所述控制板上的正投影无交叠。
在一个实施方案中,所述控制板包括位于所述控制板主体远离所述主体板部一侧设置的电源输入连接器;
所述电源输入连接器位于所述触控单元连接线的轴线在所述控制板主体表面上的正投影分割所述控制板主体表面的一侧;
所述电源输入连接器包括电源输入连接端,所述电源输入连接端设置为使所述电源连接线向所述控制板主体边缘方向延伸,且延伸方向与所述触控单元连接线的延伸方向呈0°与180°以外的角度。
如上所述,除了柔性电路板连接器和触控单元连接器之外的连接器,如电源输入连接器等,适于横向插线,以避免与柔性电路板和触控单元连接线发生干扰。电源输入连接器用于连接外设的电源,从而为显示模组供电。基本地,电源输入连接器的电源输入连接端只要使得电源连接线的延伸方向不与触控单元连接线一致即可,即呈0°与180°以外的角度。优选地,电源连接线的延伸方向垂直于触控单元连接线的延伸方向。电源输入连接器位于触控单元连接线的轴线在控制板主体表面上的正投影分割控制板主体表面的一侧,即其与触控单元连接线在所述控制板主体表面上的正投影无交叠。
如图22所示,电源输入连接器22g位于左侧,并且由灰色示出的位于其左侧的电源输入连接端在连接电源连接线后,电源连接线的延伸方向与触控单元连接线的延伸方向基本垂直。
控制板上还可以安装有信号交互连接器,用于显示模组控制板与整机控制板之间传递信号,信号交互连接器可以与电源输入连接器集成设置或者并排设置,信号交互连接线可以和电源输入连接线并行设置。
在一个实施方案中,所述控制板包括位于所述控制板主体远离所述主 体板部一侧设置的喇叭连接器;
所述喇叭连接器位于所述触控单元连接线的轴线在所述控制板主体表面上的正投影分割所述控制板主体表面的与所述电源输入连接器不同的一侧;
所述喇叭连接器包括喇叭连接端,所述喇叭连接端设置为使所述喇叭连接线向所述控制板主体边缘方向延伸,且延伸方向与所述触控单元连接线的延伸方向呈0°与180°以外的角度。
喇叭连接器用于连接外接的喇叭或扬声器,使得控制板同时可以通过显示模组为使用者提供声音提示。其所遵循的布件规则与电源输入连接器类似。不过,由于其与电源输入连接器均为尺寸较大的元件,因此优选其位于与电源输入连接器不同的一侧。
图22中,喇叭连接器22h位于与电源连接器22g相反的一侧,即右侧。同样,灰色示出的喇叭连接端设置为使所述喇叭连接线向所述控制板主体边缘方向延伸,且延伸方向与所述触控单元连接线的延伸方向基本垂直。喇叭连接器与触控单元连接线在所述控制板主体表面上的正投影也无交叠。
电源连接器和喇叭连接器可以分别在中线的两侧,并且与触控单元连接线的水平距离在0.5mm至5mm之间。它们可以尽量靠近中央,例如距离小于5mm。不过,考虑到与触控单元连接线最近的引脚在可摆件空间要求下的可行最小距离,需留出至少0.5mm的距离。
在一个实施方案中,所述电源输入连接端和所述喇叭连接端设置为使所述电源输入连接线以及所述喇叭连接线的延伸方向相反;
所述电源输入连接端设置为使所述电源输入连接线的延伸方向与所述触控单元连接线的延伸方向垂直。
这一布件走线方式使得各个元件中彼此干扰最小,利于各种连接线的插拔,并且适于与本公开的定位孔和固定支撑柱的设计配合实现稳固、抗震的显示模组的组装。
图22示出了使得电源输入连接线以及喇叭连接线的延伸方向相反并且都与触控单元连接线的延伸方向垂直的设置。
不依赖于任何理论,发明人发现,其他连接器如电源输入连接器、喇 叭连接器等适于横向插线。由于模组外形中框挡墙的存在,在最大外形不到100mm小尺寸模组前提下,插线方向需要尽可能预留较长的空间有插线行程,方便生产。如果插口从中央向边缘位置偏移1/3以上时,可能会出现操作员手较大难以伸入的困难。为确保插线顺利无阻碍,在柔性电路板和触控单元连接器已经位置明确的情况,触控单元连接线和触控单元连接器左右两侧尽量居中是最优连接器放置位置。插线行程空间最充足,且柔性电路板、触控单元连接线、电源输入、喇叭插线互不交叉、互不干扰
如图10的左图所示,电源输入连接器10g和喇叭连接器10h分别在中线的左右两侧,用于接线的开口分别向左右外侧。它们与触控单元连接线10d的水平距离小于为5mm。在触控单元连接线的侧面还可以有例如Wifi和/或蓝牙器件10i。在控制板的其他区域,还可以包括例如微控制单元MCU 10j、触控控制处理器10k等。MCU例如可以位于喇叭连接器与柔性电路板连接器之间。触控控制处理器例如可以位于电源连接器与柔性电路板连接器之间。
在一个实施方案中,所述控制板主体还包括第三定位孔,所述第三定位孔位于所述柔性电路板连接器与所述触控单元连接器之间;
所述第三定位孔与穿过所述触控单元连接器在所述控制板主体上的正投影的中心和所述柔性电路板在所述控制板主体上的正投影的中心的连线所在直线不交叠;
所述固定部包括第三子固定部,所述第三子固定部与所述第三定位孔配合固定。
第三定位孔用于在控制板主体中部提供支撑。其位于柔性电路板连接器与触控单元连接器之间,可以同时为两个连接器提供支撑。其与穿过两个连接器的中心的连线所在直线不交叠,即不在该连线所在直线上,而是在其一侧。这是因为中线上优选已在边缘设置了第一定位孔。在图22中,第三定位孔③不位于中线上。中线上已经有第一定位孔。因此,第三定位孔与第一定位孔相比可以更远离上述连线所在直线,从而可以在控制板主体中部提供分布更均匀的支撑。
在一个实施方案中,所述控制板包括位于所述控制板主体远离所述主体板部一侧设置的处理单元。
即,控制板还可以包括位于其背面的处理单元。处理单元可以是处理器。其无需外接线路,因此没有用于外接线路的连接端,并且可以排布在任何与前述元件和布线不发生冲突和干涉的位置。
在一个实施方案中,所述控制板还包括Wifi模块、蓝牙模块、温度感应模块、湿度感应模块、加速度感应模块、重力感应模块、气体探测模块、地理位置定位模块中的一种或多种。这些模块均可设置在控制板主体远离主体板部一侧,为显示模组提供更多功能。
在一个实施方案中,所述控制板主体包括第四定位孔和第五定位孔,所述第四定位孔和第五定位孔均靠近所述控制板主体的边缘设置;其中,所述第四定位孔位于所述第一定位孔与所述第二定位孔延所述控制板主体边缘顺时针行进的连线上;所述第五定位孔位于所述第一定位孔与所述第二定位孔延所述控制板主体边缘逆时针行进的连线上;
所述第四定位孔和第五定位孔设置为使所述第一、第二、第四、第五定位孔到所述控制板中心做连线时,每两个连线所构成的夹角大于或等于45度;
所述固定部包括第四子固定部,所述第四子固定部与所述第四定位孔配合固定;所述固定部包括第五子固定部,所述第五子固定部与所述第五定位孔配合固定。
在设定了两个靠近边缘的第一定位孔和第二定位孔以及一个靠近中央的第三定位孔后,可以在仍然较为薄弱的位置增加更多的定位孔,相应地增加固定部以加强稳定性。
如图22所示,可以在第一定位孔到第二定位孔的顺时针方向的边缘和逆时针方向的边缘分别增设第四和第五定位孔,并且它们都与第一、第二定位孔保持足够大的圆周角,从而更有效地增强薄弱部位。具体地,它们位于从第一、第二定位孔在顺时针和逆时针方向超过45°圆周角以外的位置。图22中第一、第二定位孔两侧的径向虚线示出了各自45°圆周角的范围,并且第四、第五定位孔④和⑤位于该范围以外。由此,所述第四定位孔和第五定位孔设置为使第一、第二、第四、第五定位孔到控制板中心做连线时,每两个连线所构成的夹角大于或等于45度。
这样,在控制板边缘,比较均匀地分布四个定位孔,使得不存在明显 薄弱的部位。
在一个实施方案中,所述控制板主体包括第六定位孔,所述第六定位孔与所述第三定位孔分别位于穿过所述触控单元连接器在所述控制板主体上的正投影的中心和所述柔性电路板在所述控制板主体上的正投影的中心的连线所在直线两侧;
所述第六定位孔与所述控制板主体边缘的最小距离距离远于所述第一、第二、第四、第五定位孔中的任意一个与所述控制板主体边缘的最小距离;
所述固定部包括第六子固定部,所述第六子固定部与所述第六定位孔配合固定。
第六定位孔也是用于控制板主体中部的支撑,因此,其与第一、第二、第四、第五定位孔相比更远离边缘,即更靠近中心。另外,其与第三定位孔分别位于中线两侧,从而可以为控制板主体中央提供分布更均匀的支撑。
在一个实施方案中,其中所述控制板主体包括第四、第五、第六定位孔,所述第一、第三、第三分别与第四、第五、第六定位孔相对于一条穿过所述控制板主体中心的轴线呈轴对称分布;
所述固定部包括第四子固定部,所述第四子固定部与所述第四定位孔配合固定;所述固定部包括第五子固定部,所述第四子固定部与所述第五定位孔配合固定;所述固定部包括第六子固定部,所述第六子固定部与所述第六定位孔配合固定。
如前所述,可以在确定第一、第二和三定位孔的位置后,设定一个穿过控制板主体中心的对称轴,并根据轴对称位置确定第四、第五和第六定位孔。轴线可以是与经过控制板主体中心和第一定位孔的直线成45°角的直线,也可以是成其他角度的直线。实际对称位置可以有一定的误差,例如,与理想对称位置相比,在相对于控制板主体中心而言的径向和圆周方向上都可以有偏差,例如20%以下的偏差,更优选10%以下偏差。
这一布件走线和定位孔排布的方式是特别有利的。按照前述方式布置第一至第六定位孔,不会影响布件走线,能够同时在边缘和中央对控制板提供充分支撑,并且有助于加固各种连接器和插口。
图10显示了根据本公开的一个实施方案的控制板的背面和正面定位 孔布置示意图。控制板具有基本上八边形的外缘,其周边的阴影区表示与支撑中框的周围支撑骨架接触的部分。在此部分中不设置定位孔。
第二通孔10a、柔性电路板连接器10b、触控单元连接器10c、触控单元连接线10d和柔性电路板10e都在显示模组的纵向的中线上。触控单元连接器10c在中央1/3宽度区域内,图中示为在正中央。触控单元连接线10d从触控单元连接器10c向下方区域延伸。柔性电路板连接器10b在触控单元连接器的上方的区域内,第二通孔10a在柔性电路板连接器10b的上方,例如距离其4mm±0.5mm处。
其中在第一通孔1005上方设置第一定位孔①,更优选地设置在中线上,作为上方边缘的固定支撑位置。在触控单元连接器10c下方并且在触控单元连接线10d的范围之外设置第二定位孔②。从中心对称的设计原理看,在下方边缘的第二定位孔应当设置在第一定位孔的中心对称位置,即中线下端。但是,因为触控单元连接线无橡胶套包裹,为软排线。如果触控单元连接线的延伸途径上设置定位孔,在控制板相应位置远离主体板部一侧(即朝向触控单元连接线一侧)将形成凸出的固定头部,这将影响触控单元连接线,进而影响触控稳定性。因此,定位孔设计需避开触控单元连接线,在触控单元连接线旁边靠板边缘左侧或右侧位置选取定位点②。图中定位点②选取在左侧。此外,在柔性电路板连接器10b和触控单元连接器10c之间设置第三定位孔③作为中部定位孔。在此,第二定位孔②与第三定位孔③位于中线的同一侧,在图中为左侧。选择同侧可以通过下述的45°角的斜线容易地设定另外三个定位孔,并且如下所述,可以为在两侧设置的其他连接器,如电源输入连接器10g和喇叭连接器10h提供稳定支持。
例如,如图10所示,以从左下方到右上方的与中线的下方向夹角为45°的线为对称轴(图中虚线),设置与第一、第二、第三定位孔分别具有对称位置的第四、第五和第六定位孔④、⑤、⑥。
图10的右图相应示出了控制板正面的情况。
这样,第一定位孔主要可以固定上边缘,第二定位孔主要可以固定下边缘,第四和第五定位孔相应地可以固定右边缘和左边缘。第三和第六定位孔用于中央部分的固定。这符合本公开具有3-4个在主体板部周边区布 置和1-2个在主体板部的中央区布置的的支撑固定柱的设计思想。
这样的六点定位孔布置与前述的具有位于中线的柔性电路板连接器和触控单元连接器和位于两侧电源输入连接器和喇叭连接器及Wifi连接器的器件布局特别适配。位于左侧的电源输入连接器周边有第二、第三和第五定位孔点位提供支撑;位于右侧的喇叭连接器由第四、第六定位孔点位提供支撑。它们以及柔性电路板连接器和触控单元连接器附件都至少有两个定位孔点位提供支撑,增加了稳定性。在例如Wifi器件附近,也至少有一个定位孔点位提供支撑。第三定位孔位于左上中部区域,在柔性电路板连接器、电源输入连接器和触控单元连接器中间提供支撑。第六定位孔位于右下中部区域,在触控单元连接线、喇叭连接器和Wifi之间提供支撑。优选地,第三定位孔选择与较大的电源输入连接器在中线同一侧,以提供更强的支撑。
在一个实施方案中,所述控制板的形状为圆形、椭圆形、或N边形中的一种,其中N大于或等于4。这样的控制板适合于规则外形的显示模组,有利于外形美观,并且是对称的,便于布件走线设计和加工。更优选地,可采用八边形。在相同的外接圆直径下,其比圆形、椭圆形和更多边形的控制板易于加工,并且比四边形或六边形控制板提供更多的用于布件的面积。
为了便于控制板与支撑中框的背面配合安装,主体板部的支撑侧边可以具有与控制板形状相应的限位内缘。例如,对于上述八边形控制板,可以将限位内缘设计为基本上八边形的。
在一个实施方案中,过所述控制板中心点在所述控制板延伸面上截取线段的最大长度小于或等于20cm。
例如,如果控制板为圆形时,控制板的半径可以小于或等于100mm。具体来说,本公开的固定方式和布件走线方式特别适用于小尺寸的显示模组。
在一个实施方案中,支撑固定柱中的3-4个在主体板部的周边区布置,与主体板部的边缘距离小于1/4板宽,并且支撑固定柱中的1-2个在主体板部的中央区布置,与主体板部的形心的距离小于1/4板宽。在控制板的相应位置则布置定位孔。板宽是经过形心和支撑固定柱的直线经过的板边 缘之间的距离。例如,对于圆形板而言,板宽即其直径。换言之,靠近边缘处,3-4个支撑固定点位可以保证整体的均匀且稳固。更优选地,靠近边缘设置4个支撑固定点位确保支撑稳固。靠近中心及形心处,增加1-2个支撑固定点位使控制板无大面积悬空,避免局部无固定区域在高温高强度震动下发生急速形变产生不良。在边缘和中心附近同时设置支撑固定点位可以使它们均匀分布于整个控制板,使得应力分布均匀。在一个实施方案中,控制板中,对于任何连接器或外部插线接口,在5-10mm距离范围内设置至少一个定位孔。即,在这些有接口的器件附近设置定位孔,从而相应地通过支撑固定柱对它们进行稳固化。通常,在安装操作和后续使用中,连接器和外部插线接口需要进行插拔电线的操作。当在它们的附近设置定位孔时,相应的支撑固定柱可以抵抗由于大力插拔线、压合钢琴盖等操作时产生局部应力对接口造成损伤。在上述优选距离范围内,既对这些连接器或接口提供稳定的支撑固定,又不影响它们安装和接线。
在一个实施方案中,所述显示单元的形状为圆形、椭圆形、或N边形中的一种,其中N大于或等于4。
与控制面板类似,显示单元也可以具有上述优选的形状,以便于加工、安装以及充分利用空间。
在一个实施方案中,所述支撑中框的正面由可替换模具镶件制备。镶件是模具中可活动拆卸的一部分,在不同产品要求时可更换,生产出不同形态。由此,具有同样边缘外形的支撑中框可以用于嵌入不同形状的显示单元。例如,可制作一款通用的圆形或矩形支撑中框,正面由不同镶件制备,得到不同的显示单元嵌入部,可替换不同尺寸和形状的显示单元。
本公开的显示模组在使用中将被安装到整机电子装置上。在一个实施方案中,所述支撑中框边缘具有卡扣。如图2所示,卡扣2015可以容易地将支撑中框的背面卡接到整机电子装置中。在另一个实施方案中,可以支撑中框的挡墙上涂布背胶,将显示模组粘贴到整机上。与粘贴相比,卡扣的优点是便于快速安装。
卡扣的位置可以是从支撑侧边进一步突出的,并且分布在支撑中框的周边。在一个实施例中,卡扣可以是从第一子支撑侧边进一步突出的。在一些实施例中,卡扣和第一子支撑侧边是一体结构。卡扣数量可以根据与 整机的具体卡接条件选择。优选为2-6个,更优选为4个。优选在圆周上均匀分布的4个卡扣,可以提供与整机较为牢固的结合,不易掉落。
在一个实施方案中,所述支撑中框边缘粘贴有泡棉胶。泡棉胶可以起到减震的作用,使得从整机传递来的震动衰减,从而进一步增加显示模组的可靠性。也可以不使用卡扣,单纯使用泡棉胶将显示模组粘贴至整机。也可以在显示模组背面最凸出的部分(例如支撑侧边)涂布背胶,将显示模组粘贴至整机。
在一个实施方案中,所述显示单元为液晶显示模块(LCM)。也可以选择其他类型的显示单元。
在一个实施方案中,其中所述显示模组的外尺寸为小于200mm直径的圆形,更优选为小于100mm直径的圆形,更优选为小于90mm直径的圆形。这种小尺寸显示模组特别适合采用本公开的实施方案。
本公开还提供一种上述显示模组的制备方法,其中,所述通过以下步骤将所述控制板组装至所述支撑中框:
提供未热压的支撑中框,其中所述支撑固定柱的支撑部上具有热熔塑料杆,所述热熔塑料杆的高度大于所述定位孔;
将所述热熔塑料杆穿过所述定位孔,使所述控制板的一侧接触所述支撑部;
使用热熔压头对所述热熔塑料杆伸出所述定位孔的部分加热加压,使其变形为所述固定头部并与所述控制板的远离所述主体板部的一侧触;
使所述固定头部冷却固化。
图17和图18示意性地示出了热压步骤。其中,热熔设备通过热压热熔塑料杆170133形成固定头部180132b。具体地,热熔塑料杆170133穿过控制板1702上的定位孔,放置于热熔压合设备中,治具固定,确保元器件被治具覆盖保护,仅露出定位柱圆孔区域。热熔塑料杆直径设计为常规塑料非高精度模具可制作最小直径1.2mm,高度设置为高于控制板背面1mm。定制热熔压头1710对应于该热熔塑料杆,热熔压头直径略大于热熔塑料杆即可,约为2mm。通过伺服电机驱动,热压位置精度可达到±0.01mm。控制多个热压头移动热压热熔塑料杆,塑料定位柱顶端材料高温下融化并压缩高度,最终如图18中呈2mm左右直径“圆饼”形的固定头 部180132b,紧压控制板。配合支撑固定柱在控制板下方的支撑部,确保控制板不会发生竖直方向形变。
可以适当地选择热熔塑料杆与定位孔的高度差,使得可以在热熔后形成足够覆盖定位孔但又不过大过厚的固定头部。
本发明的热熔加压方法可以方便地将控制板固定至支撑中框的主体板部。
本公开的显示模组可以用于安装到电子装置整机。在一个实施方案中,本公开提供一种包含该显示模组的电子装置。如上所述,显示模组可以通过卡扣或粘贴安装到整机。
在一个优选实施方案中,所述电子装置是包含电机的家用电器。包含电机的家用电器工作时处于高温强震动的情况。本公开的显示模组可以有效地减少在这种情况下的损坏和失效。
在一个更优选的实施方案中,包含电机的家用电器是家用清洁电器。在一个更优选的实施方案中,家用清洁电器是例如手持吸尘器。本公开一些实施方案中的触控滑条特别适合家用清洁电器使用过程中的单手操作。
实施例
根据图1的结构组装显示模组。选用前述优选实施方式中的参数进行制备。
显示模组组装步骤如下:
1)在显示模组103背面粘贴双面泡棉胶带,固定于支撑中框101正面,其中连接于显示模组的FPC从支撑中框的FPC通过孔向背面伸出。
2)将环形滤光片1041粘贴于支撑中框正面,使显示模组的显示部分对正滤光片中央开孔部分不被遮挡,半透过区对正支撑中框环形开孔以确保指示灯光线射出并均匀散射。
3)将灰色玻璃盖板1042预先粘贴黑色双面胶带1043于周边3mm宽度,随后粘贴于模组滤光片正面。
4)将MCU板102的定位孔位对正放置于模组支撑中框背面支撑固定柱的热熔塑料杆上,热熔塑料杆穿过MCU板的定位孔。将FPC穿过MCU板的FPC通过孔向背面伸出。
5)将模组放置于热压治具设备内,热压头压合热熔塑料柱,形成固定头部,将MCU夹在固定头部和支撑部之间,固定于支撑中框。
6)模组放置于点胶治具,在MCU板边缘与支撑中框之间的缝隙处涂胶。
7)将保护膜1044贴合于模组正面。
8)将触控滑条106插接于模组的MCU板的背面的触控单元连接器,将FPC插接于MCU板的背面的FPC连接器。其中,MCU板上采用图10的布线方式。采用图17-图18的方式将MCU板与支撑中框组装。
图19示意性地示出了触控滑条。19m为触控按键,可以实施开关、选定等操作。19n为触控滑条部分,通过用手上滑和下滑可以实施调节工作功率、灯光亮度、菜单切换等操作。图20示出了触控单元连接线远端接口与触控单元连接器的连接。触控单元连接线远端接口为硬质公头。因此,触控单元连接器需要设置在中央1/3的区域,以留出至少2倍公头长度,以便安装。
图21为本公开的一个组装好的实施方案的外观图。
将制得的包含触控滑条的显示模组通过卡扣安装至手持式吸尘器。经过测试,显示模组在工作后不会发生失效,触控滑条便于操作,产品小巧美观。
本公开的显示模组可以是小型模组,具有优异的抗高温强震动性能,并且包括前述技术细节的实施方案还具有多种优良技术效果。当用于家用清洁电器上时,可以通过滑动触控实现与显示单元的交互和控制清洁档位,提升产品使用舒适度和智能度。
以上所述,仅为本公开的具体实施方式,但本公开的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本公开揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本公开的保护范围之内。因此,本公开的保护范围应以所述权利要求的保护范围为准。

Claims (31)

  1. 一种显示模组,包括:
    支撑中框和透明盖板,所述支撑中框包括与所述透明盖板延伸方向相同的主体板部以及环绕所述主体板部设置的支撑侧边,所述支撑中框与所述透明盖板构成第一容纳空间;
    显示单元,所述显示单元位于所述第一容纳空间中;
    控制板,所述控制板位于所述主体板部远离所述显示单元的一侧,所述控制板与所述显示单元电连接,用于给所述显示单元传递显示信号;
    所述支撑中框还包括至少一个固定部,所述固定部位于所述主体板部远离所述显示单元的一侧,用于固定所述控制板。
  2. 根据权利要求1所述的显示模组,其中,所述固定部为支撑固定柱,所述支撑固定柱包括位于靠近所述主体板部一侧的支撑部以及位于远离所述主体板部一侧的连接部;
    所述连接部包括限位部以及固定头部,所述限位部的一端与所述支撑部连接,另一端与所述固定头部连接;
    所述控制板包括贯通所述控制板的定位孔,所述限位部贯穿所述定位孔,所述支撑部与所述固定头部分别位于所述控制板的两侧,并与所述限位部配合以固定所述控制板。
  3. 根据权利要求2所述的显示模组,其中,
    所述固定部的材料包括热熔材料。
  4. 根据权利要求1所述的显示模组,其中,
    所述显示单元与所述控制板之间通过柔性电路板电连接;
    所述主体板部包括第一通孔,所述柔性电路板贯穿所述第一通孔;
  5. 根据权利要求4所述的显示模组,其中,
    所述控制板包括第二通孔,所述柔性电路板贯穿所述第二通孔,并且连接于所述控制板远离所述主体板部的一侧;
    所述显示模组还包括密封胶带,所述密封胶带在所述控制板延伸面上的正投影覆盖所述第二通孔。
  6. 根据权利要求1所述的显示模组,其中,所述支撑侧边与所述主体板部构成第二容纳空间,所述控制板的至少部分位于所述第二容纳空间内;
    所述支撑侧边包括第一子支撑侧边,所述第一子支撑侧边环绕所述控制板设置,所述第一子支撑侧边构成所述第二容纳空间的侧面围挡;
    所述控制板与所述第一子支撑侧边的缝隙填充有密封胶。
  7. 根据权利要求6所述的显示模组,其中,所述透明盖板与所述支撑侧边靠近所述透明盖板的一侧固定;
    所述第一容纳空间和所述第二容纳空间整体构成密闭空间。
  8. 根据权利要求1所述的显示模组,其中,所述支撑侧边包括平行设置的第二子支撑侧边和第三子支撑侧边,其中,所述第二子支撑侧边相比于所述第三子支撑侧边更靠近所述显示单元,所述第二子支撑侧边与所述主体板部直接连接;
    所述控制板包括指示灯,所述指示灯位于所述控制板靠近所述透明盖板的一侧;所述第二子支撑侧边与所述第三子支撑侧边之间存在间隙,在所述指示灯工作时,所述指示灯发出的光可以通过所述间隙射向所述透明盖板,并穿过所述透明盖板射出。
  9. 根据权利要求8所述的显示模组,其中,
    所述透明盖板包括盖板主体以及位于所述盖板主体靠近所述显示单元一侧的滤光层;所述滤光层包括透明区以及环绕所述透明区设置的遮光区,所述透明区用于透过显示单元发出的光;
    所述滤光层还包括半透过区,所述半透过区用于在所述指示灯工作时透过所述指示灯发出的光,且在所述指示灯不工作时呈现与所述遮光区相同或相近的颜色。
  10. 根据权利要求9所述的显示模组,其中,所述支撑侧边包括多个第四子支撑侧边,所述第四子支撑侧边连接所述第二子支撑侧边与所述第三子支撑侧边;
    所述第四子支撑侧边沿平行于所述控制板延伸平面的方向延伸;
    所述第四子支撑侧边靠近所述控制板设置。
  11. 根据权利要求4所述的显示模组,其中,所述控制板包括第二通孔,所述柔性电路板贯穿所述第二通孔,并且连接于所述控制板远离所述 主体板部的一侧;
    所述控制板包括控制板主体,以及设置在所述控制板主体背离所述主体板一侧的柔性电路板连接器,所述柔性电路板连接器与所述第二通孔相邻设置,所述柔性电路板连接器包括柔性电路板连接端;
    所述第二通孔为条形通孔,所述柔性电路板连接端的延伸方向与所述第二通孔的延伸方向相同;
    所述第二通孔位于所述控制板的边缘,所述柔性电路板连接器相比于所述第二通孔更靠近所述控制板的中心。
  12. 根据权利要求11所述的显示模组,其中,所述控制板主体上包括位于所述第二通孔与所述控制板主体第一边缘之间的第一定位孔;所述第一定位孔的中心在所述第二通孔靠近所述第一定位孔一侧的孔沿的正投影位于所述孔沿整体长度的中间1/3段内;
    所述固定部包括第一子固定部,所述第一子固定部与所述第一定位孔配合固定。
  13. 根据权利要求12所述的显示模组,其中,所述控制板包括位于所述控制板主体远离所述主体板部一侧设置的触控单元连接器;
    当以所述控制板主体的中心为原点在所述触控单元连接器所在的面上做圆,且所述圆的面积覆盖所述控制板面积的1/9时,所述触控单元连接器在所述控制板主体的正投影的中心位于所述圆内。
  14. 根据权利要求13所述的显示模组,其中,所述触控单元连接器包括触控单元连接端,所述触控单元连接端设置为使所述触控单元连接线背离所述柔性电路板连接器方向延伸。
  15. 根据权利要求14所述的显示模组,其中,所述显示模组包括触控单元,所述触控单元通过所述触控单元连接线与所述触控单元连接端连接;
    所述控制板主体包括与所述控制板第二边缘相邻设置的第二定位孔,所述第二边缘位于所述第一边缘相对的一侧;
    所述第二定位孔与所述触控单元连接线相邻设置;
    所述触控单元连接线在所述控制板上的正投影与所述第二定位孔无交叠;
    所述固定部包括第二子固定部,所述第二子固定部与所述第二定位孔 配合固定。
  16. 根据权利要求15所述的显示模组,其中,所述控制板包括位于所述控制板主体远离所述主体板部一侧设置的电源输入连接器;
    所述电源输入连接器位于所述触控单元连接线的轴线在所述控制板主体表面上的正投影分割所述控制板主体表面的一侧;
    所述电源输入连接器包括电源输入连接端,所述电源输入连接端设置为使所述电源连接线向所述控制板主体边缘方向延伸,且延伸方向与所述触控单元连接线的延伸方向呈0°与180°以外的角度。
  17. 根据权利要求16所述的显示模组,其中,所述控制板包括位于所述控制板主体远离所述主体板部一侧设置的喇叭连接器;
    所述喇叭连接器位于所述触控单元连接线的轴线在所述控制板主体表面上的正投影分割所述控制板主体表面的与所述电源输入连接器不同的一侧;
    所述喇叭连接器包括喇叭连接端,所述喇叭连接端设置为使所述喇叭连接线向所述控制板主体边缘方向延伸,且延伸方向与所述触控单元连接线的延伸方向呈0°与180°以外的角度。
  18. 根据权利要求17所述的显示模组,其中,所述电源输入连接端和所述喇叭连接端设置为使所述电源输入连接线以及所述喇叭连接线的延伸方向相反;
    所述电源输入连接端设置为使所述电源输入连接线的延伸方向与所述触控单元连接线的延伸方向垂直。
  19. 根据权利要求13-18任一项所述的显示模组,其中,所述控制板主体还包括第三定位孔,所述第三定位孔位于所述柔性电路板连接器与所述触控单元连接器之间;
    所述第三定位孔与穿过所述触控单元连接器在所述控制板主体上的正投影的中心和所述柔性电路板在所述控制板主体上的正投影的中心的连线所在直线不交叠;
    所述固定部包括第三子固定部,所述第三子固定部与所述第三定位孔配合固定。
  20. 根据权利要求13-18任一项所述的显示模组,其中,所述控制板 包括位于所述控制板主体远离所述主体板部一侧设置的处理单元。
  21. 根据权利要求20所述的显示模组,其中,所述控制板还包括Wifi模块、蓝牙模块、温度感应模块、湿度感应模块、加速度感应模块、重力感应模块、气体探测模块、地理位置定位模块中的一种或多种。
  22. 根据权利要求19所述的显示模组,其中,所述控制板主体包括第四定位孔和第五定位孔,所述第四定位孔和第五定位孔均靠近所述控制板主体的边缘设置;其中,所述第四定位孔位于所述第一定位孔与所述第二定位孔延所述控制板主体边缘顺时针行进的连线上;所述第五定位孔位于所述第一定位孔与所述第二定位孔延所述控制板主体边缘逆时针行进的连线上;
    所述第四定位孔和第五定位孔设置为使所述第一、第二、第四、第五定位孔到所述控制板中心做连线时,每两个连线所构成的夹角大于或等于45度;
    所述固定部包括第四子固定部,所述第四子固定部与所述第四定位孔配合固定;所述固定部包括第五子固定部,所述第五子固定部与所述第五定位孔配合固定。
  23. 根据权利要求22所述的显示模组,其中,所述控制板主体包括第六定位孔,所述第六定位孔与所述第三定位孔分别位于穿过所述触控单元连接器在所述控制板主体上的正投影的中心和所述柔性电路板在所述控制板主体上的正投影的中心的连线所在直线两侧;
    所述第六定位孔与所述控制板主体边缘的最小距离距离远于所述第一、第二、第四、第五定位孔中的任意一个与所述控制板主体边缘的最小距离;
    所述固定部包括第六子固定部,所述第六子固定部与所述第六定位孔配合固定。
  24. 根据权利要求19所述的显示模组,其中所述控制板主体包括第四、第五、第六定位孔,所述第一、第三、第三分别与第四、第五、第六定位孔相对于一条穿过所述控制板主体中心的轴线呈轴对称分布;
    所述固定部包括第四子固定部,所述第四子固定部与所述第四定位孔配合固定;所述固定部包括第五子固定部,所述第五子固定部与所述第五 定位孔配合固定;所述固定部包括第六子固定部,所述第六子固定部与所述第六定位孔配合固定。
  25. 根据权利要求1-18任一项所述的显示模组,其中,所述控制板的形状为圆形、椭圆形、或N边形中的一种,其中N大于或等于4。
  26. 根据权利要求25所述的显示模组,其中,过所述控制板中心点在所述控制板延伸面上截取线段的最大长度小于或等于20cm。
  27. 根据权利要求1-18任一项所述的显示模组,其中,所述显示单元的形状为圆形、椭圆形、或N边形中的一种,其中N大于或等于4。
  28. 一种根据所述权利要求1所述的显示模组的制备方法,其中,所述通过以下步骤将所述控制板组装至所述支撑中框:
    提供未热压的支撑中框,其中所述支撑固定柱的支撑部上具有热熔塑料杆,所述热熔塑料杆的高度大于所述定位孔;
    将所述热熔塑料杆穿过所述定位孔,使所述控制板的一侧接触所述支撑部;
    使用热熔压头对所述热熔塑料杆伸出所述定位孔的部分加热加压,使其变形为所述固定头部并与所述控制板的远离所述主体板部的一侧接触;
    使所述固定头部冷却固化。
  29. 一种包含根据权利要求1-27中任一项所述的显示模组的电子装置。
  30. 根据权利要求29所述的电子装置,其中,所述电子装置是包含电机的家用电器。
  31. 根据权利要求30所述的电子装置,其中,所述家用电器是家用清洁电器。
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