CN202133964U

CN202133964U - Organic light emitting diode (OLED) display control keyboard

Info

Publication number: CN202133964U
Application number: CN201120266169U
Authority: CN
Inventors: 刘明; 桑建国; 马敬锐; 丁鉴彬
Original assignee: Shandong Sheenrun Optics Electronics Co Ltd
Current assignee: Shandong Sheenrun Optics Electronics Co Ltd
Priority date: 2011-07-26
Filing date: 2011-07-26
Publication date: 2012-02-01
Anticipated expiration: 2021-07-26

Abstract

The utility model relates to an organic light emitting diode (OLED) display control keyboard, which comprises keys and a keyboard body, wherein a recommend standard (RS) 232 serial port used for communicating with an upper computer is arranged on the keyboard body. The keys are OLED display keys, each key is provided with a flash storage, and a field programmable gate array (FPGA) control chip is arranged in the keyboard body. The FPGA control chip is electrically connected with each key and electrically connected with the RS 232 serial port through an electrical level conversion module, and the RS 232 serial port, the FPGA control chip and the keys are all connected with a power supply module. The OLED display control keyboard communicates with the upper computer through the RS 232 serial port, and controls peripheral equipment after the upper computer receives operation orders of the keys. The OLED display control keyboard is concise in hardware, clear at a glance in operation orders, strong in generality and capable of being applied to control of different products as long as proper change is performed on procedures of the FPGA control chip.

Description

OLED shows supervisory keyboard

Technical field

The utility model relates to a kind of OLED and shows supervisory keyboard, can be widely used in device control, and keypress function comes into plain view, and is vivid, and the pattern that button shows can be self-defined, and changes the display pattern of button according to different application.

Background technology

Keyboard is modal computer entry device, and it is widely used on microcomputer and the various terminal device.Computer operation person imports various instructions, data through keyboard to computing machine, the work of command computer.

Along with being showing improvement or progress day by day of electronic technology, the OLED button has appearred, and keyboard also upgrades to the OLED keyboard by conventional keyboard, except having more visual impact, also can bring more practical function.The keyboard that uses in the market is conventional keyboard mostly, and keypress function is not directly perceived, keypress function memory difficulty more for a long time especially, maloperation easily; Existing OLED keyboard, though relatively more directly perceived,, it mainly is to recreation and research and development, its have only 6 can self-defined button from programming.

Summary of the invention

Deficiency to the prior art existence; The utility model provides a kind of OLED to show the technical scheme of supervisory keyboard, adopts this technical scheme to communicate by letter with host computer through the RS232 serial ports, realizes the control to peripherals; Keypress function comes into plain view; Vivid, the pattern that button shows can be self-defined, and change the display pattern of button according to different application.

The utility model is realized through following technical measures: a kind of OLED shows supervisory keyboard; It comprises button and keyboard body; The keyboard body is provided with the RS232 serial ports that is used for upper machine communication, and said button is the OLED display button, and each button is provided with the flash storer; Be provided with the FPGA control chip in the said keyboard body; Said FPGA control chip is electrically connected with each button, and said FPGA control chip is electrically connected with the RS232 serial ports through level switch module, the equal and power module of said RS232 serial ports, FPGA control chip and button.The FPGA control chip is that a kind of semi-custom circuit in special IC (ASIC) field occurs, and has both solved the deficiency of custom circuit, has overcome the limited shortcoming of original programming device gate circuit number again.The OLED display button is used in combination the two with the FPGA control chip characteristics have determined that the applicability of this keyboard is strong; As long as to the program of FPGA control chip with download required picture to the OLED button; Just can be applied to Different products control, peripheral circuit is changed little.

The concrete characteristics of the utility model also have, and above-mentioned FPGA control chip directly is connected with the TTL 232 communication pins of each button.Through TTL 232 communications, peripheral components is simple between the two, and logic high is+3.3V to need not extra level transferring chip.

The inner generation of above-mentioned FPGA control chip has serial ports, MUX MUX and controller, and each passage pin of MUX MUX is connected with the OLED display button.The inner generation of FPGA control chip has serial ports, MUX MUX and controller, and each passage pin of MUX links to each other with the OLED display button, and the inside serial ports of control FPGA control chip is current with which OLED display button communicates by letter.It is that which button is pressed that FPGA judges current through key scan, and passes through inner serial ports to information such as key assignments, state values, after level transferring chip, sends to host computer, and host computer is made control corresponding according to current key commands to peripherals.The FPGA control chip is according to information such as the current key position of pressing, states, and some buttons that control is relevant with it make the image content of demonstration make corresponding variation according to control command.

The beneficial effect of the utility model is: adopt the OLED of this programme design to show supervisory keyboard, communicate by letter with host computer through the RS232 serial ports, after host computer receives the operational order of button; Again peripherals is made control, it can be widely used in various controls field, and is simple to operate; The function of each button comes into plain view; Highly versatile only need be made suitable change to the program of FPGA control chip, just can make it be applied to Different products control.This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is conspicuous.

Description of drawings

Fig. 1 is the principle schematic of the utility model embodiment.

Embodiment

For clearly demonstrating the technical characterstic of this programme,, and combine it below through an embodiment

Accompanying drawing is set forth this programme.

Shown in accompanying drawing; The utility model is that a kind of OLED shows supervisory keyboard, and it comprises button and keyboard body, and the keyboard body is provided with the RS232 serial ports that is used for upper machine communication; Said button is the OLED display button; Each button is provided with the flash storer, is provided with the FPGA control chip in the said keyboard body, and said FPGA control chip is electrically connected with each button; Said FPGA control chip is electrically connected with the RS232 serial ports through level switch module, the equal and power module of said RS232 serial ports, FPGA control chip and button.

Wherein, the FPGA control chip directly is connected with the TTL 232 communication pins of each button, and inner generation of FPGA control chip has serial ports, MUX MUX and controller, and each passage pin of MUX MUX is connected with the OLED display button.

The utility model can pass through existing techniques in realizing without the technical characterictic of describing, and repeats no more at this.Certainly; Above-mentioned explanation is not to be the restriction to the utility model; The utility model also be not limited in above-mentioned for example, variation, remodeling, interpolation or replacement that those skilled in the art are made in the essential scope of the utility model also should belong to the protection domain of the utility model.

Claims

1. an OLED shows supervisory keyboard; It comprises button and keyboard body, it is characterized in that, the keyboard body is provided with the RS232 serial ports that is used for upper machine communication; Said button is the OLED display button; Each button is provided with the flash storer, is provided with the FPGA control chip in the said keyboard body, and said FPGA control chip is electrically connected with each button; Said FPGA control chip is electrically connected with the RS232 serial ports through level switch module, the equal and power module of said RS232 serial ports, FPGA control chip and button.

2. OLED according to claim 1 shows supervisory keyboard, it is characterized in that, said FPGA control chip directly is connected with the TTL 232 communication pins of each button.

3. OLED according to claim 1 and 2 shows supervisory keyboard, it is characterized in that, the inner generation of said FPGA control chip has serial ports, MUX MUX and controller, and each passage pin of MUX MUX is connected with the OLED display button.