CN214675878U - Circuit board with liquid crystal display screen - Google Patents
Circuit board with liquid crystal display screen Download PDFInfo
- Publication number
- CN214675878U CN214675878U CN202120310254.9U CN202120310254U CN214675878U CN 214675878 U CN214675878 U CN 214675878U CN 202120310254 U CN202120310254 U CN 202120310254U CN 214675878 U CN214675878 U CN 214675878U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- pin
- liquid crystal
- crystal display
- driver
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model provides a circuit board with liquid crystal display, including circuit board body and liquid crystal display, be provided with the resettlement groove on the circuit board body, the embedded setting of liquid crystal display's backplate is in the resettlement groove, be provided with the driver on the circuit board body, liquid crystal display with adopt the soft arranging wire to connect between the driver, the driver adopts driver chip HT1621, driver chip HT1621 includes LCD module and display subsystem, display subsystem is provided with pin COM0, pin COM1, pin COM2 and pin COM3, pin COM0, pin COM1, pin COM2 and pin COM3 are initialization serial interface circuit and end the communication pin between main control unit and the driver chip HT 1621. The utility model discloses, circuit structure is simple, low cost, and easy to maintain can directly use soft arranging wire connecting circuit board and liquid crystal display's circuit, with driver chip HT1621 direct drive control liquid crystal display's normal work, convenient to detach and installation.
Description
Technical Field
The utility model belongs to the technical field of circuit board electrical components's correlation, particularly, relate to a circuit board with liquid crystal display.
Background
With the rapid development of electronic technology, electronic products are developing toward miniaturization, portability, multifunction, high integration and high reliability. The name of the circuit board is ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in batch production of fixed circuits and optimization of electric appliance layout. The display screen constitutes the screen body by the display element (unit display panel or unit display box) that a plurality of can make up the concatenation, and in addition a set of suitable controller, the control circuit of this controller is the circuit board that sets up alone usually, but among the prior art, interconnect's display screen and the split type setting of the majority of circuit board, install and need occupy great installation space at the inside of equipment for use, and not with storage and transport, comparatively inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model provides a new circuit board that has liquid crystal display, the technical problem that solve are current circuit board and the split type setting of liquid crystal display, occupy installation space, the problem of difficult storage and transport.
In view of this, the utility model provides a new circuit board with liquid crystal display, including circuit board body and liquid crystal display, be provided with the resettlement groove on the circuit board body, liquid crystal display's embedded setting of backplate is in the resettlement groove, be provided with the driver on the circuit board body, liquid crystal display with adopt the flexible flat cable to connect between the driver.
In the above technical solution, optionally, the driver employs a driving chip HT 1621.
In this embodiment, driver HT1621 is a 128-point memory map and the software configuration features of a multi-function driver make it suitable for use in a variety of LCD applications.
In the above technical solution, optionally, the driving chip HT1621 includes an LCD module and a display subsystem.
In the above technical solution, optionally, the display subsystem is provided with a pin COM0, a pin COM1, a pin COM2, and a pin COM 3.
In the above technical solution, optionally, the pin COM0, the pin COM1, the pin COM2, and the pin COM3 are all pins for initializing a serial interface circuit and terminating communication between the main controller and the driver chip HT 1621.
In this embodiment, when the communication pin is set to 1, data and commands between the host controller and the driver chip HT1621 are invalidated and initialized, and before a mode command or a mode conversion is generated, the serial interface of the driver chip HT1621 must be initialized with a high level pulse.
In the above technical solution, optionally, the display subsystem is provided with a pin DATA for serial DATA input and output.
In this solution, the read, write DATA and write commands are performed through pin DATA.
In the above technical solution, optionally, the display subsystem is provided with a read clock input pin RD.
In this solution, the DATA is output on pin DATA at the falling edge of pin RD signal, and the host controller should read the corresponding DATA between the rising edge and the next falling edge of pin RD signal.
In the above technical solution, optionally, the display subsystem is provided with a pin WR of a write clock input pin.
In this solution, DATA, address and command on pin DATA are written to driver chip HT1621 on the rising edge of pin WR signal.
In the above technical solution, optionally, the display subsystem is provided with an interface pin IRQ connected to an external controller and the driver chip HT 1621.
In the technical scheme, an interface pin IRQ can be set by software to be used as timer output or WDT overflow mark output, and a main controller is connected with the interface pin IRQ of a driving chip HT1621 to realize time base or WDT function.
In the above technical solution, optionally, a power saving command for reducing system power consumption is further provided on the driving chip HT 1621.
Compared with the prior art, the utility model has the advantages of: the circuit board with the liquid crystal display screen is simple in circuit structure, low in cost and easy to maintain, the circuit board and the liquid crystal display screen can be directly connected through the flexible flat cables, the driving chip HT1621 is used for directly driving and controlling the normal work of the liquid crystal display screen, and the liquid crystal display screen is convenient to detach and install.
Drawings
Fig. 1 is a schematic view illustrating a connection structure of a circuit board with a liquid crystal display according to an embodiment of the present invention;
fig. 2 shows a schematic circuit diagram of an LCD display module according to an embodiment of the present invention;
fig. 3 shows a schematic diagram of a circuit structure of a display subsystem of the driving chip HT1621 according to an embodiment of the present invention.
The names corresponding to the reference numerals in the drawings are a circuit board body 101 and a liquid crystal display screen 102.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the position or the positional relationship is based on the position or the positional relationship shown in the drawings, or the position or the positional relationship which is usually placed when the product of the present invention is used, or the position or the positional relationship which is conventionally understood by those skilled in the art, and is only for the convenience of describing the present invention and simplifying the description, but it is not to indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. For those skilled in the art, the specific meaning of the above terms in the present invention and the attached drawings in the embodiments can be understood in specific situations, and the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
The invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, a circuit board with a liquid crystal display includes a circuit board body 101 and a liquid crystal display 102, the circuit board body 101 is provided with a placement groove, a back plate of the liquid crystal display is embedded in the placement groove, the circuit board body is provided with a driver, the liquid crystal display is connected with the driver by a flexible flat cable, the driver adopts a driving chip HT1621, the driving chip HT1621 includes an LCD module and a display subsystem, the LCD display module is shown in fig. 2, the display subsystem is provided with a pin COM0, a pin COM1, a pin COM2 and a pin COM3 as shown in fig. 3, the pin COM0, the pin COM1, the pin COM2 and the pin COM3 are all pins for initializing a serial interface circuit and ending communication between a main controller and the driving chip HT1621, the display subsystem is provided with a pin DATA for serial DATA input and output, the display subsystem is provided with a read clock input pin RD, the display subsystem is provided with a pin WR of the write clock input pin, the display subsystem is provided with an interface pin IRQ for connecting an external controller and a driving chip HT1621, and the driving chip HT1621 is also provided with a power-saving command for reducing the power consumption of the system.
Wherein the driver chip HT1621 is a 128-point memory image and the software configuration feature of the multifunctional driver makes it suitable for various LCD applications, the DATA and command between the host controller and the driver chip HT1621 are invalid when the communication pin is set to 1 and the serial interface of the driver chip HT1621 must be initialized with a high level pulse before generating a mode command or a mode switch, the read, write and write commands are performed through the pin DATA, the DATA output pin DATA is at the falling edge of the pin RD signal, the host controller should read the corresponding DATA between the rising edge and the next falling edge of the pin RD signal, the DATA, address and command on the pin DATA are written into the driver chip HT1621 at the rising edge of the pin WR signal, the interface pin IRQ can be set as the timer output or WDT overflow flag output by software, the host controller interfaces with the interface pin IRQ of the driver chip HT1621, either time base or WDT functionality may be implemented.
Above combine the figure to describe in detail the technical scheme of the utility model, the utility model discloses a technical scheme provides a new circuit board that has liquid crystal display, and circuit structure is simple, low cost, easy to maintain can directly use soft arranging wire connecting circuit board and liquid crystal display's circuit, with driver chip HT1621 direct drive control liquid crystal display's normal work, convenient to detach and installation.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The circuit board with the liquid crystal display screen comprises a circuit board body and the liquid crystal display screen, and is characterized in that a placement groove is formed in the circuit board body, a back plate of the liquid crystal display screen is embedded into the placement groove, a driver is arranged on the circuit board body, and the liquid crystal display screen is connected with the driver through a flexible flat cable.
2. The circuit board with a liquid crystal display of claim 1, wherein the driver adopts a driving chip HT 1621.
3. The circuit board with a liquid crystal display of claim 2, wherein the driving chip HT1621 comprises an LCD module and a display subsystem.
4. A circuit board with lcd panel according to claim 3, wherein the display subsystem is provided with pins COMO, COM1, COM2 and COM 3.
5. The circuit board with a liquid crystal display according to claim 4, wherein the pin COMO, the pin COM1, the pin COM2 and the pin COM3 are all pins for initializing a serial interface circuit and terminating communication between the main controller and the driving chip HT 1621.
6. The circuit board with LCD as claimed in claim 3, wherein the display subsystem is provided with a pin DATA for serial DATA input and output.
7. The circuit board with a liquid crystal display of claim 3, wherein the display subsystem is provided with a read clock input pin RD.
8. The circuit board with an LCD panel of claim 3, wherein the display subsystem is provided with a WR pin for a write clock input pin.
9. The circuit board with a liquid crystal display screen according to claim 3, wherein the display subsystem is provided with an interface pin IRQ for connecting an external controller and a driving chip HT 1621.
10. The circuit board with a liquid crystal display according to claim 2, wherein the driver chip HT1621 is further provided with a power saving command for reducing system power consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120310254.9U CN214675878U (en) | 2021-02-01 | 2021-02-01 | Circuit board with liquid crystal display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120310254.9U CN214675878U (en) | 2021-02-01 | 2021-02-01 | Circuit board with liquid crystal display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214675878U true CN214675878U (en) | 2021-11-09 |
Family
ID=78445984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120310254.9U Active CN214675878U (en) | 2021-02-01 | 2021-02-01 | Circuit board with liquid crystal display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214675878U (en) |
-
2021
- 2021-02-01 CN CN202120310254.9U patent/CN214675878U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7354275B2 (en) | Graphics card connector module, and motherboard device having the same | |
| US8725917B2 (en) | Chip and computer system | |
| US8439698B1 (en) | Low profile mechanical and electrical accessory connector | |
| US20090276640A1 (en) | Power management apparatus and system using the same | |
| CN214675878U (en) | Circuit board with liquid crystal display screen | |
| CN108459981B (en) | Multifunctional signal conversion circuit and converter | |
| JP2006210992A (en) | Mobile terminal | |
| CN107799072B (en) | Electronic paper display device | |
| CN101714343A (en) | Timing control circuit and display device and electronic device using the same | |
| CN111063291B (en) | Drive chip, control board, and drive method for control board | |
| KR970004081B1 (en) | Portable low power computer | |
| CN111063314A (en) | Display device | |
| CN219143436U (en) | Circuit board assembly and touch display device | |
| KR100831296B1 (en) | Liquid Crystal Display Device | |
| CN216212275U (en) | Liquid crystal display driving circuit and liquid crystal display module | |
| US20110221660A1 (en) | Self-luminescent Display Device, Display Method and Portable Computer of the Same | |
| EP3663892B1 (en) | Memory module with screen and motherboard module | |
| CN117133251A (en) | Micro display, display equipment and board card | |
| CN217587982U (en) | Electronic equipment based on ARM calculation module | |
| KR100434048B1 (en) | Lcd module connecting device of potable electronic system | |
| CN211959675U (en) | Special circuit board of electronic stationery based on lithium cell | |
| CN208969663U (en) | Electric terminal | |
| CN216565379U (en) | Double-sided screen television system | |
| CN218768707U (en) | Screen adapter plate, display and computer | |
| CN220475835U (en) | Switcher capable of being connected with peripheral equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |