E-Paper Display User Guide

General Guidelines

E-Paper Display Handling and Operation Precautions

Precautions for operating flexible electronic paper displays.

Design end-customer products

Touch screen guide
Electronic Paper Display Storage Index South

General Guidelines

Determine whether to use an e-paper display

Display content update cycle:

• E-paper displays are not suitable for applications where the display content needs to be refreshed quickly, but are suitable for applications where the update time is from tens of seconds to several minutes, or even longer.
• At present, most of the black and white electronic paper screens launched by Jiaxian can achieve a fast refresh rate of 1.5-2.5 seconds and a partial refresh rate of several hundred milliseconds. They can also be further debugged and improved according to your specific requirements.
• In applications where there is no active power supply and the image does not need to be updated frequently, e-paper displays are the ideal choice.

Temperature and color:

• Please note that both three-color and four-color e-paper displays cannot operate below zero degrees.
• For those that require sub-zero operating temperatures, low temperature/wide temperature black and white e-paper displays are currently the only option.
• Of course, we can also expand the operating temperature of e-paper by adding a heating film behind the display.
• Considering the refresh rate, temperature and storage, if multiple colors are not necessary, we still recommend choosing a black and white e-paper display.
  

Safe Operation of E-Paper Displays

• Don't use your hands Direct contact IC Area , Because this can easily cause the IC to discharge due to electrostatic discharge and damaged .
• The FPC is attached to the front surface of the EPD, and any upward force may cause the FPC to fall off. Therefore, the FPC is not allowed to bend upward.
• The FPC is only bonded to the glass edge by 1mm. Take When the display is Take the display screen Glass part, no To pass Grab FPC Pick up the display , This can easily cause the FPC to tear or Shedding .
• Plug and unplug Electronic Paper Please turn off the power before displaying the display, otherwise it is easy to cause IC damage.
• Please check the battery level , Overcharge Low It will also burn out the IC.
• Must be within the rated voltage and current limits Selection Devices Applying power beyond these specifications will cause irreparable damage.
• Always follow anti-static safety procedures , Please make sure that your body and electrical appliances are grounded during operation. It is best to use a conductive mat on the table and wear Anti-static clothing To reduce static electricity generation,
• Notice The working environment should not be too dry , A relative humidity of 50 - 60% is recommended.
• Pre-use inspection Display , ensuring that it meets pre-defined quality standards.
• If the product does not meet our quality standards or is defective, please do not Tear off the easy-to-tear sticker on the screen .
• Wear gloves or finger cots to prevent Static electricity Contact or contamination of glass surfaces.
• Always follow proper welding techniques and ventilation requirements.

E-Paper Display Handling and Operation Precautions
E-Paper Display Assembly Guide

• Before reassembly, remove the protective film from the e-paper display.
• Electronic Paper Display product Thin and fragile, When assembling please Avoid excessive application of force If you need to use double-sided tape to stick the e-paper display to the device, it is recommended Apply the tape to the device first, then the display .
• The shape of the tape also needs to be considered, for example, a "口" shape is easier to remove than a "|||" shape.
• Electronic Paper Driver IC Very sensitive to static electricity ,want Implement strict anti-static measures , prevent During assembly, operation and storage Generate static electricity ,
• Keep Static electricity put electricity （ ESD ） Less than ±200V.
• Some display screens use FPC ACF pressing method , Please limit the pressing weight to one kg to ensure good electrical connection and avoid bonding failure.

Operating Conditions and Design Considerations

• Sun exposure: Avoid using electronic paper Display Expose to direct sunlight as it may damage Electronic paper film.
• Strictly adhere to the specifications: When designing the driver circuit, strictly adhere to the specifications provided. Using components that do not meet these specifications may shorten the life of the e-paper display. Use life.
• Update interval:

For black and white Electronic Paper Display , It is recommended that after updating a set of displayed content, The next set of displayed content will be updated after an interval of 180 seconds. Continuously Updates will affect the lifespan of your digital paper.

For multicolor and full color color Electronic Paper Display , it is recommended that each twenty four Hourly full brush renew , This helps ensure Display quality and extend service life.

• Bureau brush :In each conduct 5 times Bureau brush back, suggestion About E-paper Display Execute once Full brush to prevent the screen from Leave an afterimage .
• Deep sleep mode: If the interval between two updates is long, it is recommended to cut off the power supply or set the e-paper display to deep sleep mode. , to save power and extend its service life .
• FPC bending position: The bending position of the flexible printed circuit (FPC) should be away from the glass edge Approx. 1 ~1.5 mm , Radius of curvature Greater than 0.5mm .

Precautions for operating flexible electronic paper displays

Precautions for operating flexible screens

• Current stage Flexible electronic paper Display The main advantages are light weight, space saving, and not easy to broken . but Not recommended need Curved place Use because Current technology The technique still needs to be improved, bending Will increase damage Probability .
• The IC (integrated circuit) and its surrounding area are not flexible and therefore cannot able bending.
• When handling flexible displays, use gentle methods such as suction cups whenever possible.
• To ensure There is no particle-like foreign matter on the front or back of the e-paper display.
• The operating and storage temperature should not exceed 70°C as this may damage the display.

Design end-customer products
Product Design Considerations

• Please contact your service specialist. Try Use Jiaxian supply of Electronic paper display 3D file design , for best results .
• Make sure the FPC is inserted and The wiring has enough Loose space to avoid stress caused by tightness and affect reliability .
• Required bending radius of FPC cable R>0.5mm If the FPC cable has creases, At once Indicates improper operation , need to be adjusted .
• avoid Dirty FPC The "Golden Finger" area on the .
• Don't Electronic Paper Display pressure ,at the same time Between the e-paper display and the PCBA, and Electronic paper screen It is best to add flexible insulation between the finished shell The material is used for buffering to prevent the electronic paper display from being crushed or the static electricity of the PCBA from damaging the circuit of the glass substrate.

Assembly Guide

Flex cable insertion:

• use Reliable quality Connectors ensure reliable electrical connections.
• Insert the FPC cable straight into the connector without bending it. Connector switch Lock the connector.
• Check after insertion to confirm proper assembly. If problems occur, unplug, reinsert, and test the cable.
• You can also use PI Tape is applied to connectors and flex cables to prevent FPC due to vibration Break away.

Connector Processing:

• Never open it. Connector switch Remove the flexible cable without any damage to the gold fingers.

Hot Swap: Do not insert or remove the display while the device is powered on to prevent damage or degradation.

• Flexible cable laying: when FPC When passing through the housing opening, make sure FPC and shell opening Clearance to prevent friction damage.
• Reinforcement plate: exist FPC Add non-conductive PI film Reinforcement, because stress may cause FPC to tear, making it damage .

Installation and stress:

• When installing the display within the product housing, avoid uneven torque to prevent glass cracking.
• It is best to add flexible insulating material between the electronic paper display and the PCBA, as well as between the electronic paper display and the finished product shell, to prevent the electronic paper display from being crushed or The static electricity of the PCBA causes damage to the circuit of the glass substrate.

Bonding and tension:

• The display and touch panel use ACF bonding technology. Limit the load to less than 1 Kg to avoid damage to the bond and electrical disconnection.

Touch screen usage guide

Notes on using capacitive touch screen:

• We usually laminate the capacitive touch screen onto the e-paper display and provide it to customers as a set. Don't try to Both Separation is crucial.
• if exist touchscreen Around the edges or corners Discover Small bubbles , then Indicates that the screen The force on the touchscreen and Display There is a gap in the middle , thereby Bubbles form.
• don't want In capacitor Mode touch screen (CTP) surfaces, as this may cause long-term degradation To use Dry Clean cloth for cleaning.
• Make sure to use only the specified stylus. A stylus that is too sharp can damage the surface.
• Do not apply more force to the touch panel than you would normally expect. If you only have Excessive force It can be recognized only when The touchpad is faulty Be .
• When using finger actuation, make sure your hands are clean to prevent excess oil or particles from interfering with recognition. Wet or dirty of finger None Law Guaranteed Correct identification .
  

E-Paper Display Storage Guidelines

How to safely store your e-paper display:

• Optimum temperature and humidity: Maintain storage The temperature range is 23±3℃ and the humidity range is 55±10%RH for optimal storage conditions.
• Placement direction: E-paper Display The front side of the camera should lie flat with the white pattern displayed. This orientation helps prevent irreversible ghosting.
• Tips for utilization: To ensure the quality of the electronic paper display, it is recommended to use it as soon as possible after unpacking. bad Minimize the impact.

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