Category: FAQ
Do FSC LCD Modules Contain a Booster Circuit?
- Published on Friday, 04 May 2012 10:20
- Written by admin
The
FSC LCD Modules is a new
custom color LCD display technology that allows the customer to design a color display to fit their exact size.
FSC-LCD’s (aka
Field Sequential Color LCD) produce a sharp contrast and ultra-fast response time at a fraction of the tooling cost for a TFT.
One downside to this technology is the need for a built-in booster circuit. The purpose of this additional circuit is to provide the necessary voltage to drive this display. OEM’s in certain industries cannot have this circuit for safety reasons.
Field sequential color displays provide all seven colors in each display. You do not need to pre-order the color you need. The color of the display is changed through the customer’s software. Standard colors include red, green, blue, yellow, cyan, purple with a black or white background.
Advantages of FSC LCD displays:
- Contrast ratio of sharpness of the FSC.
- The FSC offers a contrast ratio that is 2x that of a TFT (Thin film transistor)
- The FSC is customized to meet the customer’s requirements.
- FSC can be customized with a lower MOQ (minimum order quantity) than custom TFT’s and an affordable tooling fee.
Disadvantage of FSC LCD displays:
- Limited size at this time.
Contact
Focus LCD Displays for any questions on a
custom FSC LCD display at 800-955-1824.
Character LCD Display Controllers or Graphics LCD Display Controllers?
- Published on Tuesday, 23 August 2011 22:23
- Written by admin
NO. Not all LCD controller/drivers are created equal.
Focus
Character LCD displays and
Graphic LCD modules include built in controller drivers.
The function of the controller driver is to convert the customers’
firmware/software to characters and graphics.
Every few years the IC manufacturer discontinues their version of the
driver and this forces the customer to switch controllers or rewrite their firmware.
Many LCD display data sheets call out a specific controller/driver and then add the words ‘or equivalent’.
Equivalent does not always mean 100% equivalent. There are small differences between each manufacturer of controller/drivers. We find that 95% of customers can switch from one controller to another with no hiccups, but there is 5% that do have issues.
When we work with a customer on a new LCD project
, regardless if this is a standard display or a customized LCD display, we suggest the following:
- Ask if the current controller is being discontinued.
- Test a sample of the controller/driver before ordering production quantities.
- Think about whether you need additional displays for your repairs. You may want a last time buy of your current controller.
Focus Displays designs and supplies custom LCD displays and can help you with your replacement LCD display needs.
Do All FSC Color LCD Modules Come With 7 Colors?
- Published on Thursday, 11 August 2011 02:34
- Written by admin
Field sequential color displays provide all seven colors in each display. You do not need to pre-order the color you need.
The color of the display is changed through the customer’s software. That is one of the great advantages of an FS color LCD.
Another advantage of the display is the increased
contrast ratio. The contrast ratio of this
customized LCD display is 2x that of a TFT.
The
FSC display is custom built according to the customer’s drawings. There is no need to design your product around an off the shelf display. You design the custom color module around your product.
We do offer demo boards of a FS display and
EBT display (Excellent Black Technology).
Contact Focus Displays at
FocusLCD.com for your design needs.
Current Consumption for a Custom Segment LCD Module
- Published on Wednesday, 06 July 2011 02:23
- Written by admin
The standard current draw of a static LCD module at normal operating temperature is between 1.2uA/squre cm to 1.5uA per square cm. The required current is higher for a wide temperature LCD module. This does not include the power required for a LED
backlight or EL backlight.
In most cases, when a customer is looking for a ultra low power LCD display, they use a segmented module only. This glass only solution includes a static display or a multiplex custom LCD design.
Focus display LCD’s have the following options.
- 3V LCD driving voltage of 5V LCD driving voltage.
- Normal temperature or wide operating temperature
- TN, STN or FSTN
- Parallel interface and SPI interface
Contact
Focus Displays for design assistance on your
custom display or modified LCD requirements.
Difference Between FSTN (Film Compensated Super Twist Nematic) LCD and a TN (Twisted Nematic) Display
- Published on Saturday, 18 June 2011 19:34
- Written by admin
FSTN (See photo below) is considered a better fluid technology then TN or STN. FSTN allows for a better viewing angle and better contrast. There is a higher cost for FSTN.
FSTN technology
TN (See photo below) was one of the first fluid technologies incorporated in LCD technology. The viewing angle is not as wide as STN or FSTN. Examples of TN LCD’s can be seen in pagers and gas pumps.
TN technology
