CN114185191A

CN114185191A - On-vehicle miniLED backlight module with touch-control function

Info

Publication number: CN114185191A
Application number: CN202111530568.0A
Authority: CN
Inventors: 徐芹; 周兰兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-03-15

Abstract

The invention discloses a vehicle-mounted miniLED backlight source module with a touch function, relates to the technical field of LED backlight source modules, and aims to solve the problems that the LED backlight source module cannot realize light source conversion, brightness adjustment, brightness area conversion and the like. The LED backlight module is ingenious in design and meticulous in structure, the problems that the light source conversion and the brightness adjustment of the LED backlight module cannot be realized through a touch screen when the LED backlight module is used on an automobile are solved, in the light emitting area conversion work of the LED backlight module, the LED backlight module is a single light emitting module, and meanwhile the LED backlight module cannot be in bidirectional linkage with the touch screen.

Description

On-vehicle miniLED backlight module with touch-control function

Technical Field

The invention relates to the technical field of LED backlight modules, in particular to a vehicle-mounted miniLED backlight module with a touch function.

Background

The backlight module is one of the key components of the liquid crystal display panel, and has the function of supplying sufficient light source with uniform brightness and distribution to normally display images, namely, an LED, and is made of compounds containing gallium, arsenic, phosphorus, nitrogen and the like, when electrons and holes are compounded, visible light can be radiated, so that the backlight module can be used for manufacturing the LED, and can be used as an indicator lamp in circuits and instruments or form character or digital display, a gallium arsenide diode emits red light, a gallium phosphide diode emits green light, a silicon carbide diode emits yellow light, a gallium nitride diode emits blue light, and the backlight module also comprises an organic LED, an inorganic LED and the LED due to chemical properties, and is a semiconductor component and is mainly used as the indicator lamp, a display LED plate and the like at first time.

And when LED backlight module is applicable to the automobile market, because the luminous unicity that has of LED backlight module, the luminous luminance does not possess the effect of regulation and control simultaneously, and LED backlight module wants luminance and light emitting source to adjust, need carry out the regulation and control of physical mode to LED backlight module's resistance etc., the combination of touch module and LED backlight module often can only accomplish lighting and extinguishing of LED backlight module simultaneously, the luminance regulation problem can't be realized through effectual touch means, and for solving the technical problem who proposes above, the range of application and the application of present comprehensive LED backlight module, a on-vehicle miniLED backlight module with touch-control function has been proposed.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides a vehicle-mounted miniLED backlight module with a touch function, which is ingenious in design and compact in structure, solves the problems that the light source conversion and the brightness adjustment of the LED backlight module cannot be realized through a touch screen when the LED backlight module is used on an automobile, and in the light emitting area conversion work of the LED backlight module, the LED backlight module is a single light emitting module, and meanwhile, the LED backlight module cannot realize bidirectional linkage with the touch screen.

(II) technical scheme

The invention provides a vehicle-mounted miniLED backlight module with a touch function, which comprises an LED backlight module bearing plate, wherein a plurality of groups of LED backlight structures which are arranged in a rectangular array are laid on the surface of the top of the LED backlight module bearing plate, grooves communicated with circuits inside the LED backlight module bearing plate are formed in two sides of the LED backlight module bearing plate, a plurality of groups of flat cable ports which are arranged in a rectangular array are arranged in an inner cavity of each groove, a touch module structure is arranged at the top of the LED backlight module bearing plate, the LED backlight structure is arranged between the LED backlight module bearing plate and the touch module structure, and a plurality of groups of integrated circuits are arranged at the bottom of the LED backlight module bearing plate.

Further, the LED backlight structure further comprises an LED control main board, a PCB panel, a lamp tube outer body, an LCD liquid crystal display screen, a rubber joint, a light guide tube LED chip, a diffusion screen and a special LED PCB panel, wherein the top output end of the LED control main board is welded with the bottom input end of the PCB panel, the top surface of the PCB panel is welded with the bottom of the special LED PCB panel, the top of the special LED PCB panel is welded with the bottom of the LED chip, and the top of the LED chip is welded with the bottom of the light guide tube.

Furthermore, the four corners of the light guide pipe, the LED chip, the PCB panel special for the LED and the PCB panel are welded with the output end of the outer body of the lamp tube, the top of the light guide pipe is welded with the bottom of the diffusion screen, the two ends of the diffusion screen are welded with the surface of the output end of the LCD liquid crystal display screen, and the periphery of the LCD liquid crystal display screen is wrapped by rubber joints.

Further, the LED control main board is an asynchronous double-display automatic chip main board, OCA optical glue is adopted for adhesion among the light guide pipe, the LED chip and the special PCB panel for the LED, and the output end of the LED control main board is connected with the input end of the PCB panel through pins.

Further, the right-hand member welding of touch-control module structure has winding displacement connection beam port, winding displacement connection beam port has two output ports, two outputs of winding displacement connection beam port all are provided with stranded winding displacement, the winding displacement is kept away from the one end of winding displacement connection beam port output port and all is welded and is received the line and insert, it has multiunit signal receiver to receive one side welding of line and inserting and keeping away from the winding displacement, signal receiver and the mutual joint of the inside winding displacement port of recess.

Furthermore, the touch module structure further comprises a glass cover plate, a front polarizer, front light guide glass, a rear polarizer, rear light guide glass, a signal conduction mainboard, a backlight, a capacitive sensor, bump supporting plates and electrodes, wherein the number of the bump supporting plates is four, the bump supporting plates are distributed at four corners of the signal conduction mainboard, one end, far away from the signal conduction mainboard, of each bump supporting plate is welded with an internal circuit of the LED backlight module receiving plate, the top output end of the signal conduction mainboard is welded with the bottom of the capacitive sensor, and the top of the capacitive sensor is welded with the bottom of the rear light guide glass.

Furthermore, the top of the rear light guide glass is adhered to the bottom of the rear polarizer through the OAC optical glue, the top of the rear polarizer is fixedly connected with the bottom of the front light guide glass, the top of the front light guide glass is fixedly connected with the bottom of the front polarizer, and the top of the front polarizer and the bottom of the glass cover plate are fixedly connected with the ITO functional glass through the OAC optical glue.

Compared with the prior art, the technical scheme of the invention has the following beneficial technical effects:

in conclusion, the LED backlight module is ingenious in design and compact in structure, the problems that light source conversion and brightness adjustment of the LED backlight module cannot be achieved through a touch screen when the LED backlight module is used on an automobile are solved, in the light emitting area changing work of the LED backlight module, the LED backlight module is a single light emitting module, meanwhile, the LED backlight module cannot achieve bidirectional linkage with the touch screen, and the LED backlight module achieves control over brightness and light source conversion and simultaneously gives consideration to the touch property of the LED backlight module, so that the application range of the LED backlight module is enlarged.

Drawings

Fig. 1 is a schematic top view structure diagram of an LED backlight structure of a vehicle-mounted miniLED backlight module with a touch function according to the present invention.

Fig. 2 is a schematic partial cross-sectional structural view of a vehicle-mounted miniLED backlight module with a touch function according to the present invention.

Fig. 3 is a schematic top view of a touch module of a vehicle-mounted miniLED backlight module with a touch function according to the present invention.

Fig. 4 is a schematic cross-sectional structural view of an LED backlight structure of a vehicle-mounted miniLED backlight module with a touch function according to the present invention.

Fig. 5 is a schematic structural sectional view of a touch module of the vehicle-mounted miniLED backlight module with a touch function according to the present invention.

Reference numerals: 1. the LED backlight source module bearing plate; 2. an LED backlight source structure; 201. an LED control main board; 202. a PCB panel; 203. a lamp tube outer body; 204. an LCD liquid crystal display screen; 205. a rubber joint; 206. a light pipe; 207. an LED chip; 208. a diffusing screen; 209. a PCB panel dedicated to the LED; 3. a flat cable port; 4. a touch module structure; 401. a glass cover plate; 402. a front polarizer; 403. front light guide glass; 404. a rear polarizer; 405. back light guide glass; 406. a signal conduction main board; 407. a backlight sheet; 408. a capacitive sensor; 409. a salient point supporting plate; 410. an electrode; 5. arranging wires; 6. the flat cable is connected with the beam port; 7. a signal receiver.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in FIGS. 1-5, the present invention provides a vehicle-mounted miniLED backlight module with touch control function, which comprises an LED backlight module receiving plate 1, wherein a plurality of sets of LED backlight structures 2 arranged in a rectangular array are laid on the top surface of the LED backlight module receiving plate 1, after an internal integrated circuit of the LED backlight module receiving plate 1 is powered on, an output signal chip of an LED control main board 201 transmits an electronic signal to a regionalized integrated circuit in the control PCB panel 202, grooves communicated with the internal circuit of the LED backlight module receiving plate 1 are respectively formed on both sides of the LED backlight module receiving plate 1, a plurality of sets of flat cable ports 3 arranged in a rectangular array are arranged in the inner cavity of the groove, a touch control module structure 4 is arranged on the top of the LED backlight module receiving plate 1, wherein the LED backlight structure 2 is arranged between the LED backlight module receiving plate 1 and the touch control module structure 4, the bottom of the LED backlight module bearing plate 1 is provided with a plurality of groups of integrated circuits.

The LED backlight structure 2 further includes an LED control main board 201, a PCB panel 202, an outer tube body 203, an LCD liquid crystal display 204, a rubber connector 205, a light pipe 206, an LED chip 207, a diffusion screen 208, and a PCB panel 209 dedicated to LED, wherein a top output end of the LED control main board 201 is welded to a bottom input end of the PCB panel 202, the outer tube body 203 illuminates an inclined surface of the outer tube body 203 toward a lamp bead after receiving a signal of a local integrated circuit of the PCB panel 202, and illuminates the light pipe 206 and the PCB panel 209 dedicated to LED through the lamp bead of the outer tube body 203, a top surface of the PCB panel 202 is welded to a bottom of the PCB panel 209 dedicated to LED, a top of the PCB panel 209 dedicated to LED is welded to a bottom of the LED chip 207, and a top of the LED chip 207 is welded to a bottom of the light pipe 206.

Four corners of the light pipe 206, the LED chip 207, the PCB panel 209 special for the LED and the PCB panel 202 are welded with the output end of the outer body 203 of the lamp tube, the top of the light pipe 206 is welded with the bottom of the diffusion screen 208, the diffusion screen 208 reflects the light sources of the PCB panel 209 special for the LED and the light pipe 206 to the inside of the diffusion screen 208, and is projected to the outside of the rubber joint 205 through the light source diffusion effect of the diffusion screen 208, both ends of the diffusion screen 208 are welded with the output end surface of the LCD liquid crystal display screen 204, the rubber joint 205 is wrapped around the LCD liquid crystal display screen 204, the rubber joint 205 only has the effect of wrapping around the diffusion screen 208, thereby fixing the overall effect of the LED backlight structure 2 without obstructing the light emission of the LED backlight structure 2, wherein the LED control main board 201 is an asynchronous dual-display automatic chip main board, the light pipe 206, the LED chip 207 and the LED special PCB panel 209 are adhered by OCA optical glue, wherein, the output end of the LED control main board 201 is connected with the input end of the PCB panel 202 through pins.

The right end of the touch module structure 4 is welded with a flat cable connecting beam port 6, after signals of the flat cable connecting beam port 6 are integrated, electric signals are communicated with a flat cable port 3 of a groove in the LED backlight module receiving plate 1 through data transmission of the flat cable 5, meanwhile, under the control action of the flat cable connecting beam port 6, the brightness and a light emitting area of the LED backlight structure 2 can change along with a touch instruction of the touch module structure 4, the flat cable connecting beam port 6 is provided with two output ports, two output ends of the flat cable connecting beam port 6 are provided with a plurality of flat cables 5, one end of the flat cable 5, which is far away from the output ports of the flat cable connecting beam port 6, is welded with a take-up strip plug, one side of the take-up strip plug, which is far away from the flat cable 5, is welded with a plurality of signal receivers 7, and the signal receivers 7 are mutually clamped with the flat cable port 3 in the groove.

The touch module structure 4 further includes a glass cover plate 401, a front polarizer 402, a front light guide glass 403, a rear polarizer 404, a rear light guide glass 405, a signal conduction motherboard 406, a backlight 407, a capacitive sensor 408, bump support plates 409 and electrodes 410, wherein the four bump support plates 409 are distributed at four corners of the signal conduction motherboard 406, one end of the bump support plate 409 away from the signal conduction motherboard 406 is welded to an internal circuit of the LED backlight module receiving board 1, a top output end of the signal conduction motherboard 406 is welded to the bottom of the capacitive sensor 408, and a top of the capacitive sensor 408 is welded to the bottom of the rear light guide glass 405.

The top of the back light guide glass 405 is adhered to the bottom of the back polarizer 404 through the OAC optical glue, the top of the back polarizer 404 is fixedly connected to the bottom of the front light guide glass 403, the top of the front light guide glass 403 is fixedly connected to the bottom of the front polarizer 402, and the top of the front polarizer 402 is fixedly connected to the bottom of the glass cover plate 401 through the ITO optical glue.

In the invention, after the internal integrated circuit of the LED backlight module receiving board 1 is powered on, the output signal chip of the LED control main board 201 transmits electronic signals to the regionalized integrated circuit in the control PCB panel 202, the lamp outer body 203 turns on the inclined surface of the lamp outer body 203 to the lamp bead after receiving the signals of the regional integrated circuit of the PCB panel 202, and the light pipe 206 and the PCB panel 209 special for the LED are illuminated by the lamp bead of the lamp tube outer body 203, meanwhile, the LED chip 207 receives the light brightness signal of the LED control main board 201, the diffusion screen 208 reflects the light source of the LED special PCB panel 209 and the light pipe 206 into the LED special PCB panel and the light pipe 206, and is projected to the outside of the rubber joint 205 by the light source diffusion effect of the diffusion screen 208, and the rubber joint 205 only has the effect of surrounding the diffusion screen 208, and further, the overall effect of the LED backlight structure 2 is fixed, and the light emission of the LED backlight structure 2 is not hindered.

The touch module structure 4 laid on the top surface of the LED backlight module receiving board 1 plays a role of controlling the LED backlight structure 2 to emit light, when a finger or a human body touches the external contact surface of the glass cover 401, the contact point of the glass cover 401 will be depressed inwards, and the ITO functional glass between the glass cover 401 and the front polarizer 402 will be depressed towards the depression of the glass cover 401, and simultaneously the liquid crystal arranged between the front light guide glass 403 and the rear polarizer 404 will release the depressed area and the degree limit of depression onto the signal conduction main board 406, and simultaneously the rear light guide glass 405 and the backlight 407 will release the depressed signal to the capacitance sensor 408 together with the signal integration of the signal conduction main board 406, and release the signal to the flat cable connection beam port 6 through the bump support board 409 after the centralized data of the electrodes 410 on both sides are collected.

After the signals of the flat cable connecting beam port 6 are integrated, the electric signals are communicated with the flat cable port 3 of the groove in the LED backlight module receiving plate 1 through the data transmission of the flat cable 5, meanwhile, under the control action of the flat cable connecting beam port 6, the brightness and the light emitting area of the LED backlight structure 2 can be changed along with the touch instruction of the touch module structure 4, and the light direction of the LED backlight structure 2 can also be changed through the installation direction of the LED backlight module receiving plate 1.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such changes and modifications that fall within the scope and bounds of the appended claims, or equivalents of such scope and bounds.

Claims

1. The utility model provides a on-vehicle miniLED backlight module with touch-control function, accepts board (1) including LED backlight module, its characterized in that, LED backlight module accepts the top surface of board (1) and has laid multiunit LED backlight structure (2) that are the rectangle array and arrange, LED backlight module accepts the both sides of board (1) and all seted up and accepts the communicating recess of board (1) internal circuit with LED backlight module, be provided with winding displacement port (3) that the multiunit is the rectangle array and arranges in the recess inner chamber, LED backlight module accepts the top of board (1) and is provided with touch-control module structure (4), wherein LED backlight structure (2) accept between board (1) and touch-control module structure (4) in LED backlight module, the bottom that LED backlight module accepted board (1) is provided with multiunit integrated circuit.

2. The vehicle-mounted miniLED backlight module with the touch control function according to claim 1, wherein the LED backlight structure (2) further comprises an LED control main board (201), a PCB panel (202), an outer tube body (203), an LCD liquid crystal display (204), a rubber joint (205), a light guide tube (206), an LED chip (207), a diffusion screen (208) and an LED special PCB panel (209), wherein a top output end of the LED control main board (201) is welded with a bottom input end of the PCB panel (202), a top surface of the PCB panel (202) is welded with the bottom of the LED special PCB panel (209), the top of the LED special PCB panel (209) is welded with the bottom of the LED chip (207), and the top of the LED chip (207) is welded with the bottom of the light guide tube (206).

3. The vehicle-mounted miniLED backlight module with the touch function according to claim 2, wherein four corners of the light guide pipe (206), the LED chip (207), the LED special PCB panel (209) and the PCB panel (202) are welded to the output end of the outer tube body (203), the top of the light guide pipe (206) is welded to the bottom of the diffusion screen (208), two ends of the diffusion screen (208) are welded to the surface of the output end of the LCD liquid crystal display (204), and the periphery of the LCD liquid crystal display (204) is wrapped by the rubber joint (205).

4. The vehicle-mounted miniLED backlight module with the touch control function according to claim 2, wherein the LED control main board (201) is an asynchronous dual-display automatic chip main board, OCA optical glue is adopted for adhesion among the light guide pipe (206), the LED chip (207) and the LED special PCB panel (209), and an output end of the LED control main board (201) is connected with an input end of the PCB panel (202) through pins.

5. The vehicle-mounted miniLED backlight module with the touch function according to claim 1, wherein a flat cable connecting beam port (6) is welded at the right end of the touch module structure (4), the flat cable connecting beam port (6) has two output ports, two output ends of the flat cable connecting beam port (6) are provided with a plurality of flat cables (5), one end of each flat cable (5) far away from the flat cable connecting beam port (6) output port is welded with a wire receiving row plug, one side of each wire receiving row plug far away from the flat cable (5) is welded with a plurality of groups of signal receivers (7), and the signal receivers (7) are clamped with the flat cable ports (3) inside the groove.

6. The vehicle-mounted miniLED backlight module with the touch control function according to claim 1, characterized in that the touch module structure (4) further comprises a glass cover plate (401), a front polarizer (402), a front light guide glass (403), a rear polarizer (404), a rear light guide glass (405), a signal conduction main board (406), a backlight sheet (407), a capacitance sensor (408), a bump support plate (409) and an electrode (410), wherein the bump support plates (409) are four and distributed at the four corners of the signal conduction main board (406), one end of the salient point supporting plate (409) far away from the signal conduction main board (406) is welded with an internal circuit of the LED backlight module receiving board (1), the top output end of the signal conduction main board (406) is welded with the bottom of the capacitance sensor (408), the top of the capacitance sensor (408) is welded with the bottom of the back light guide glass (405).

7. The vehicle-mounted miniLED backlight module with the touch control function according to claim 6, wherein the top of the rear light guide glass (405) is adhered to the bottom of the rear polarizer (404) through OAC optical glue, the top of the rear polarizer (404) is fixedly connected to the bottom of the front light guide glass (403), the top of the front light guide glass (403) is fixedly connected to the bottom of the front polarizer (402), and the top of the front polarizer (402) is fixedly connected to the bottom of the glass cover plate (401) through the OAC optical glue.

8. The vehicle-mounted miniLED backlight module with the touch control function according to claims 1-7, further comprising the following steps:

after the internal integrated circuit of the LED backlight module receiving board 1 is powered on, the output signal chip of the LED control main board 201 transmits electronic signals to the regionalized integrated circuit in the control PCB panel 202, the outer tube body 203 lights the inclined surface of the outer tube body 203 to curve to the lamp bead after receiving the signals of the regional integrated circuit of the PCB panel 202, and the light pipe 206 and the PCB panel 209 special for the LED are illuminated by the lamp bead of the lamp tube outer body 203, meanwhile, the LED chip 207 receives the light brightness signal of the LED control main board 201, the diffusion screen 208 reflects the light source of the LED special PCB panel 209 and the light pipe 206 into the LED special PCB panel and the light pipe 206, and is projected to the outside of the rubber joint 205 by the light source diffusion effect of the diffusion screen 208, and the rubber joint 205 only has the effect of surrounding the diffusion screen 208, the overall effect of the LED backlight source structure 2 is further fixed, and meanwhile, the light emitting of the LED backlight source structure 2 is not obstructed;

the touch module structure 4 laid on the top surface of the LED backlight module receiving board 1 plays a role of controlling the LED backlight structure 2 to emit light, after a finger or a human body touches the external contact surface of the glass cover board 401, the contact point of the glass cover board 401 will dent inwards, and the ITO functional glass between the glass cover board 401 and the front polarizer 402 will assimilate dent towards the dent of the glass cover board 401, and simultaneously the liquid crystal arranged between the front light guide glass 403 and the rear polarizer 404 releases the dent area and the dent degree limit number onto the signal conduction main board 406, and simultaneously the rear light guide glass 405 and the backlight 407 integrate and release the dent signal together with the signal of the signal conduction main board 406 onto the capacitance sensor 408, and release the signal onto the flat cable connection beam port 6 through the bump support board 409 after the centralized data of the electrodes 410 on both sides are collected;