Custom Negative Segment VATN LCD Display With HT1621 ST7035 Controller

HT1621 Controller Segment LCD Display Module, Customize Segment LCD Display With Backlight

Let's take a look at the characteristics of the 1621-segment LCD screen
* Operating voltage 2.4 --5.2V * Embedded 256KHz RC oscillator
* External 32KHz chip or 256KHz frequency source input can be connected
* Selectable 1/2bais or 1/3bais bias and duty cycle of 1/2duty, 1/3duty, 1/4duty
* On-chip time-base frequency source
* The buzzer can be selected with two frequencies
* Built-in timebase generator and watchdog timer WDT
* Timebase or watchdog timer overflow output
* Eight time-base/watchdog timer clock sources
* One 32segX 4com LCD driver with embedded 32X 4-bit display RAM memory
* Four-wire serial interface /CS, DATA, WR, RD, generally not used by RD
* The on-chip LCD drive frequency is not adjustable at 64HZ
* Software configuration features: data mode and command mode two commands
* VLCD pins are provided for adjusting the LCD operating voltage (contrast adjustment)

LCD logical table correspondence

The RAM of HT1621 corresponds to the logical table in the figure above. This is a good understand,

HT1621 corresponds to 32 addresses, and each address corresponds to 4 COM data
For example, if a 0 address is written to 0X08 T1 of SGE0 is lit
Write 0X01 corresponds to the 1F light of SGE0
Write 0X02 1G brightness corresponding to SGE0
Write 0X07 1E, 1G, and 1F of SGE0 are lit together
Write 0X0F All 1E, 1G, 1F, and T1 of SGE0 are bright

HT1621 can be written consecutively, and it is best to write two addresses at a time, so that it is easy to make a table table, and it is easy to write.
For example, the first two addresses are written 0XF7 corresponding to SGE0, SEG1, 1E, 1G, 1F, 1D, 1C, 1B, and 1A are all lit, so that a full "8" character is displayed.

In order to make the LCD display, these instructions must be written in the initialization of the IC.

First, let's understand what instructions are and what data is
1 0 0 C8 C7 C6 C5 C4 C3 C2 C1 C0
The first three digits of 100 are the flag bits of the instruction, and the last 9 bits are the instruction values
1 0 1 C7 C6 C5 C4 C3 C2 C1 C0
The first three digits 101 are the flag bits of the data, and the last 8 bits are the data
That is, seeing the first three digits of 100 represents the instruction, and seeing the first three digits of 101 represents the data

Custom Negative Segment VATN LCD Display With HT1621 ST7035 Controller​ Product Images

Factory Facilities and Certificates

Why Choose us

1．We provide LCD Display custom solution

Does your product have special application requirements, electrical specifications, optical specifications, touch features, or mechanical dimensions that require customized displays? SAEF can meet your custom LCD requirements.

2．Total solutions for Touch screen and display

Are you worried about assembling the touch screen and display screen? SAEF can provide custom and standard touch screen including Resistive and Capacitive multi-touch solutions including air & optical bonding service as well.

3．Commitment to quality reliability

SAEF is Qualified by ISO9001:2015 and ISO14000, meeting the RoHS, REACH and other environmental rules in global markets. We ensure quality through the manufacturing IQC,PQC and OQC management, reliability and aging testing.

4．Long-term supply

Under normal circumstances, the products we recommend can be supplied for more than 5 years. If there are special needs, we will make alternative plans in advance to ensure your long-term supply requirements.

Search Keywords: TN LCD, VA LCD, VATN LCD, HTN LCD, STN LCD, FSTN LCD, EBTN LCD, temperature and humidity meters LCD, electronic scales LCD, multimeter LCD, smart meter LCD, water meter LCD, gas meter LCD, bank money counter LCD, cash register LCD, stock machines LCD, telephone LCD, walkie-talkie LCD, massager LCD, treadmill LCD, fat meter LCD, air conditioner LCD, Audio LCD. Car DVD LCD, microwave oven LCD. remote controler LCD, learning machine LCD, electronic dictionary LCD, MP3 LCD, computer, control LCD panel , CNC refueling machine LCD, industrial computer LCD, game console LCD, perpetual calendar LCD, clock LCD. Instrumentation LCD. Healthcare machine LCD, Thermostat LCD, Home Appliance LCD, Elevator LCD, LCD for Lift.

Founded in 2007, ShenZhen SAEF Technology Co., Ltd is committed to manufacturing and developing high-quality products for industrial LCD display, including TFT LCD, OLED, monochrome TN/STN/FSTN LCM display modules and system integration solutions. Saef Technology has become a leading enterprise in the field of small and medium size displays, and its continuous innovation has enable it to obtain a number of invention patents in the display field. With more than 14 years of experience, providing competitive products and services through stable product quality and professional pre-sales and after-sales service, SAEF technology has won the recognition of many international big brand companies and established long-term and stable cooperation with them.

Saef Technology is an ISO9001 and environmental ISO 14001 certified manufacturer. We provide 1 to 10 years warranty for all the company’s products. We are not only a display manufacturer but also a solution partner for our customers.

As a leading manufacturer in the display module market, Saef Technology will continue to focus on the research and development of new technologies such as TFT, OLED display, embedded systems integration solutions, and we will continue to provide customers display products with high cost performance.