CN115509300A - Integrated driving circuit board with touch expansion screen and keyboard - Google Patents
Integrated driving circuit board with touch expansion screen and keyboard Download PDFInfo
- Publication number
- CN115509300A CN115509300A CN202211311420.2A CN202211311420A CN115509300A CN 115509300 A CN115509300 A CN 115509300A CN 202211311420 A CN202211311420 A CN 202211311420A CN 115509300 A CN115509300 A CN 115509300A
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- keyboard
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- screen
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- 238000007599 discharging Methods 0.000 claims abstract description 7
- 230000009467 reduction Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 108700025151 PD protocol Proteins 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The invention relates to the technical field of circuit boards, in particular to a driving circuit board with a touch expansion screen and a keyboard integrated, wherein a display driving chip is connected with an EDP display screen and a PD charging and discharging protocol chip, the PD charging and discharging protocol chip is connected with a TYPE-C interface, the display driving chip is also connected with a signal selector switch, the signal selector switch is connected with the TYPE-C interface, the TYPE-C interface is also connected with a USB HUB chip, the USB HUB chip is connected with a touch control circuit and a keyboard control circuit, the touch control circuit is connected with a touch screen interface, and the keyboard control circuit is connected with a keyboard interface. Compared with the prior art, the integrated driving circuit board with the touch expansion screen and the keyboard can realize the integrated functions of the expansion screen, the touch screen and the keyboard by adopting a single TYPE-C line, and can realize the integrated functions of the expansion screen, the touch screen and the keyboard by adopting an HDMI interface and a USB interface to convert a TYPE-C line.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of circuit boards, in particular to a driving circuit board with an integrated touch expansion screen and keyboard.
[ background ] A method for producing a semiconductor device
Prior art's USB keyboard, single TYPE-C interface only realize extension screen and touch-sensitive screen, seldom have single TYPE-C interface, can realize TYPE-C extension screen + touch-sensitive screen + keyboard function simultaneously, can also realize that specific HDMI letter interface + USB interface changes TYPE-C interface line function, and the user can't be used in the correlation simultaneously when using cell-phone and computer official working, and office efficiency can't promote.
[ summary of the invention ]
In order to overcome the problems, the invention provides an integrated driving circuit board with a touch expansion screen and a keyboard, which can effectively solve the problems.
The invention provides a technical scheme for solving the technical problems, which comprises the following steps: the driving circuit board with the touch expansion screen and the keyboard integrated comprises a display driving chip, wherein the display driving chip is connected with an EDP display screen and a PD charging and discharging protocol chip, and the PD charging and discharging protocol chip is connected with a TYPE-C interface; the display driving chip is also connected with a signal change-over switch, and the signal change-over switch is connected with the TYPE-C interface; the TYPE-C interface is further connected with a USB HUB chip, the USB HUB chip is connected with a touch control circuit and a keyboard control circuit, the touch control circuit is connected with a touch screen interface, and the keyboard control circuit is connected with a keyboard interface.
Preferably, including boost module, first step-down module and second step-down module, TYPE-C interface connects respectively in boost module, first step-down module and second step-down module, boost module and first step-down module connect respectively in the EDP display screen, first step-down module and second step-down module connect respectively in showing driver chip.
Preferably, the touch screen interface is connected with a touch screen, and the keyboard interface is connected with a keyboard.
Preferably, the USB HUB chip is connected to a USB _ a interface and a USB _ B interface.
Preferably, the display driving chip is connected with a key switch.
Preferably, the display driving chip adopts an RTD2556 type chip.
Preferably, the PD charge-discharge protocol chip adopts a LDR6282 model chip.
Preferably, the USB HUB chip adopts a GL850G-HHY model chip.
Preferably, the touch control circuit adopts a HK32F103C8T6NC model chip.
Preferably, the keyboard control circuit adopts an SX93F93B chip.
Compared with the prior art, the integrated driving circuit board with the touch expansion screen and the keyboard can realize the integrated functions of the expansion screen, the touch screen and the keyboard by adopting a single TYPE-C line; the HDMI interface + USB interface is converted into a TYPE-C line, so that the functions of an expansion screen, a touch screen and a keyboard are integrated; a user uses a mobile phone/a computer, and can use the mobile phone/the computer in a related mode, so that the functions of the expansion screen, the touch and the keyboard are realized, and the office efficiency of the user is improved.
[ description of the drawings ]
FIG. 1 is a frame diagram of an integrated driving circuit board with a touch expansion screen and a keyboard according to the present invention;
FIG. 2 is a schematic diagram of a display driver chip with an integrated touch screen and keyboard driver circuit board according to the present invention;
FIG. 3 is a schematic diagram of a PD charge-discharge protocol chip of the integrated drive circuit board with a touch expansion screen and a keyboard according to the present invention;
FIG. 4 is a schematic diagram of a USB HUB chip with a touch expansion screen and keyboard integrated driving circuit board according to the present invention;
FIG. 5 is a schematic diagram of a touch control circuit of the integrated driving circuit board with touch expansion screen and keyboard according to the present invention;
FIG. 6 is a schematic diagram of a keyboard control circuit of the integrated driving circuit board with touch screen and keyboard of the present invention;
fig. 7 is a schematic diagram of a signal switch of the integrated driving circuit board with the touch expansion screen and the keyboard according to the present invention.
[ detailed description ] embodiments
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 below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that all directional indications (such as up, down, left, right, front, back \8230;) in embodiments of the present invention are limited to relative positions on a given view, not absolute positions.
In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Referring to fig. 1 to 7, the integrated driving circuit board with the touch expansion screen and the keyboard of the invention includes a display driving chip, the display driving chip is connected with an EDP display screen and a PD charging and discharging protocol chip, and the PD charging and discharging protocol chip is connected with a TYPE-C interface.
The display driving chip is further connected with a signal change-over switch, and the signal change-over switch is connected to the TYPE-C interface.
The TYPE-C interface is further connected with a USB HUB chip, the USB HUB chip is connected with a touch control circuit and a keyboard control circuit, the touch control circuit is connected with a touch screen interface, and the keyboard control circuit is connected with a keyboard interface. The touch screen interface is used for connecting a touch screen, and the keyboard interface is used for connecting a keyboard. The USB HUB chip is further connected with a USB _ A interface and a USB _ B interface.
The integrated driving circuit board with the touch expansion screen and the keyboard further comprises a boosting module, a first voltage reduction module and a second voltage reduction module, wherein the TYPE-C interface is respectively connected with the boosting module, the first voltage reduction module and the second voltage reduction module, the boosting module and the first voltage reduction module are respectively connected with the EDP display screen, and the first voltage reduction module and the second voltage reduction module are respectively connected with the display driving chip. The display driving chip is also connected with a key switch.
During operation, the positive 5V of the TYPE-C interface input power supply is divided into three paths for voltage adjustment: one path of voltage is boosted to 12 volts from positive 5 volts by the boosting module, and is supplied to the backlight of the EDP display screen; one path of voltage is reduced to 1.1V by the second voltage reduction module and is supplied to a display driving chip; one path of voltage is dropped to 3.3 volts by the first voltage dropping module to be supplied to the display driving chip. The PD protocol part: and the CC1 and the CC2 enter from the TYPE-C interface and are processed and identified by the PD charge-discharge protocol chip to control the display driving chip to turn over the front signal and the back signal. Signal part: DP or HDMI signals are input through a TYPE-C interface, switched and identified through a signal selector switch to output the DP or HDMI signals, the DP or HDMI signals are respectively sent to a channel appointed by a display driving chip to be subjected to signal processing, and the inside of the display driving chip is used for shaping, amplifying, exchanging and outputting EDP signals to drive a display screen to display. USB2.0 part: the USB _ A interface and the USB _ B interface are input into the HUB; the keyboard is output to the HUB through the keyboard control circuit; the touch screen is connected with the touch control circuit, and the USB2.0 signal is converted and then output to the HUB; the three paths are respectively output to a HUB concentrator to carry out regeneration, shaping and amplification on the received signals, and then the signals are transmitted to a computer end through a TYPE-C interface.
The display driving chip adopts an RTD2556 type chip.
The PD charge-discharge protocol chip adopts an LDR6282 model chip.
The USB HUB chip adopts a GL850G-HHY model chip.
The touch control circuit adopts a HK32F103C8T6NC model chip.
The keyboard control circuit adopts an SX93F93B type chip.
The signal switch adopts an ASW3410QNC chip.
Compared with the prior art, the integrated driving circuit board with the touch expansion screen and the keyboard can realize the integrated functions of the expansion screen, the touch screen and the keyboard by adopting a single TYPE-C line; the HDMI interface + USB interface is converted into a TYPE-C line, so that the functions of an expansion screen, a touch screen and a keyboard are integrated; a user uses a mobile phone/a computer, and can use the mobile phone/the computer in a related mode, so that the functions of the expansion screen, the touch and the keyboard are realized, and the office efficiency of the user is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalents and improvements made within the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The integrated driving circuit board with the touch expansion screen and the keyboard is characterized by comprising a display driving chip, wherein the display driving chip is connected with an EDP display screen and a PD charge-discharge protocol chip, and the PD charge-discharge protocol chip is connected with a TYPE-C interface;
the display driving chip is also connected with a signal change-over switch, and the signal change-over switch is connected with the TYPE-C interface;
the TYPE-C interface is further connected with a USB HUB chip, the USB HUB chip is connected with a touch control circuit and a keyboard control circuit, the touch control circuit is connected with a touch screen interface, and the keyboard control circuit is connected with a keyboard interface.
2. The integrated driving circuit board with the touch screen and the keyboard of claim 1, comprising a voltage boosting module, a first voltage reducing module and a second voltage reducing module, wherein the TYPE-C interface is respectively connected to the voltage boosting module, the first voltage reducing module and the second voltage reducing module, the voltage boosting module and the first voltage reducing module are respectively connected to the EDP display screen, and the first voltage reducing module and the second voltage reducing module are respectively connected to the display driving chip.
3. The integrated driving circuit board with touch screen and keyboard of claim 1, wherein the touch screen interface is connected with the touch screen, and the keyboard interface is connected with the keyboard.
4. The integrated driving circuit board with touch expansion screen and keyboard of claim 1, wherein said USB HUB chip is connected with USB _ a interface and USB _ B interface.
5. The integrated driving circuit board with touch expansion screen and keyboard of claim 1, wherein said display driving chip is connected with a key switch.
6. The integrated driving circuit board with touch expansion screen and keyboard of claim 1, wherein the display driving chip is a chip of RTD2556 type.
7. The integrated driving circuit board with touch expansion screen and keyboard according to claim 1, wherein the PD charging and discharging protocol chip is LDR6282 model chip.
8. The integrated driving circuit board with touch screen and keyboard of claim 1, wherein said USB HUB chip is GL850G-HHY type chip.
9. The integrated driving circuit board with the touch expansion screen and the keyboard as claimed in claim 1, wherein the touch control circuit adopts HK32F103C8T6NC type chip.
10. The integrated driving circuit board with the touch expansion screen and the keyboard as claimed in claim 1, wherein the keyboard control circuit adopts an SX93F93B chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211311420.2A CN115509300A (en) | 2022-10-25 | 2022-10-25 | Integrated driving circuit board with touch expansion screen and keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211311420.2A CN115509300A (en) | 2022-10-25 | 2022-10-25 | Integrated driving circuit board with touch expansion screen and keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115509300A true CN115509300A (en) | 2022-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211311420.2A Pending CN115509300A (en) | 2022-10-25 | 2022-10-25 | Integrated driving circuit board with touch expansion screen and keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115509300A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117971733A (en) * | 2024-03-29 | 2024-05-03 | 智道网联科技(北京)有限公司 | Touch circuit, vehicle-mounted device mainboard and touch circuit switching method |
-
2022
- 2022-10-25 CN CN202211311420.2A patent/CN115509300A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117971733A (en) * | 2024-03-29 | 2024-05-03 | 智道网联科技(北京)有限公司 | Touch circuit, vehicle-mounted device mainboard and touch circuit switching method |
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