HKT043BMC-2C LCD Module User Manual Release Date - Preliminary Draft release - Update section 1.1 Raoyao Raoyao Document Name: HKT043BMC-2C-Manual-Rev0.2 Page: 1 of 16

LCD Module User Manual Document Name: HKT043BMC-2C-Manual-Rev0.2 Page: 2 of 16

LCD Module User Manual 1 Basic Specification TOPWAY HKT043BMC-2C is a Smart TFT Module with 32bit MCU on board. Its graphics engine provides numbers of outstanding features. It supports TOPWAY TML for preload and pre-design display interface that simplify the host operation and development time. Suitable for industry control, instrumentation, medical electronics, power electric equipment applications. General Specification Screen Size(Diagonal) : Resolution : Color Depth : Pixel Configuration : Display Mode : Viewing Direction : Outline Dimension : Active Area : Backlight : Command I/F: Power...

LCD Module User Manual Terminal Function RS485 Interface Terminal (K1) Pin No. Pin Name I/O 1 2,3 4 5 6 Descriptions Power supply (6.0~26.0 V) No connection, leave open RS485 Differential Signal A RS485 Differential Signal B Ground, (0V) Note. *1. User data and commands transfer through this terminal *2. HW hand shake is suggested USB Interface Terminal (K2) Pin No. Pin Name I/O 1 2 3 4 5 Descriptions Power supply(5.0V) USB DATA negative signal USB DATA positive signal No connection, leave open Ground, (0V) Note. *1. TML files and image files preload through this terminal *2. Standard “USB-drive”...

LCD Module User Manual Items Operating Voltage Differential Driver Output (with load)R=50Ω (*1) Receiver Differential Threshold Voltage Operating Current Operating Current (USB) Battery Supply Current VSS=0V, VDD=12.0V, TOP =25C Unit Applicable Pin/FUNC V VDD B *2.Normal display condition *3.USB-drive (high-speed) Items Start bit Data bit Parity bit Stop bit Baud Rate(*1) Items Serial Data Flow Control JP10=close, JP9=open (factory default) busy Note. *1.Baud Rate (1200bps～115200bps) could be adjusted by software. Document Name: HKT043BMC-2C-Manual-Rev0.2 Page: 5 of

LCD Module User Manual Basic Operation Function Descriptions HKT043BMC-2C TML/XML files Picture files ICONS files Custom Memories Touch Panel VP variables Control and Draw Engine TML files, images, icons are stored inside the flash memory area. They are pre-loaded into the HKT043BMC-2C via USB. The GUI’s appearance and responses are based on the preloaded TML files The Control- and Drawing- Engine executes RS485 / Modbus RTU commands. Document Name: HKT043BMC-2C-Manual-Rev0.2 Page: 6 of 16

LCD Module User Manual Quick Start Guide Install TOPWAY Graphics Editor Import pictures 2. design UI flow Connect to Slave 5. Show real time data Modbus configuration Descriptions The HKT043BMC-2C needs to add the configuration file "modbus.xml" to the project generated by the TOPWAY RGTools to describe the relationship between the screen variables and the registers of the Modbus Slave device. Please refer to Appendix A for "Modbus.xml" formating. Document Name: HKT043BMC-2C-Manual-Rev0.2 Page: 7 of 16

LCD Module User Manual 5 Optical Characteristics Item Contrast ratio Color chromaticity Luminance uniformity Note: *1. Definition of Contrast Ratio The contrast ratio could be calculate by the following expression: Contrast Ratio (CR) = Luminance with all pixels white / Luminance with all pixels black *2 Definition of Viewing Angle *3 Definition of response time *4 Definition of Luminance Uniformity Luminance uniformity (Lu)= Min. Luminance form pt1~pt9 / Max Luminance form Pt1~pt9

LCD Module User Manual 6 LCD Module Design and Handling Precautions Please ensure V0, VCOM is adjustable, to enable LCD module get the best contrast ratio under different temperatures, view angles and positions. Normally display quality should be judged under the best contrast ratio within viewable area. Unexpected display pattern may com out under abnormal contrast ratio. Never operate the LCD module exceed the absolute maximum ratings. Never apply signal to the LCD module without power supply. Keep signal line as short as possible to reduce external noise interference. IC chip (e.g. TAB or...

LCD Module User Manual the electric circuit of LCD module. Only clean LCD with a soft dry cloth, Isopropyl Alcohol or Ethyl Alcohol. Other solvents (e.g. water) may damage the LCD. Never add force to components of LCD module. It may cause invisible damage or degrade the module's reliability. When mounting LCD module, please make sure it is free from twisting, warping and bending. Do not add excessive force on surface of LCD, which may cause the display color change abnormally. LCD panel is made with glass. Any mechanical shock (e.g. dropping from high place) will damage the LCD module. Protective...

LCD Module User Manual double side adhesive. The countersink area should be flat and clean to ensure the double side adhesive installation result. The Bezel is recommend to keep a gap (≥0.3mm each side) around the cover lens for tolerance. It is recommended to provide an additional support bracket with gasket for backside support when necessary (e.g. TFT module without mounding structure). They should only provide appropriate support and keep the module in place. The mounting structure should be strong enough to prevent external uneven force or twist act onto the module Figure 2 7.3 Additional...

LCD Module User Manual (between the bezel and RTP).The suggested figures are B≥0.50mm; C≥0.50mm. (Figure 4) The bezel side wall should keep space E= 0.2 ~ 0.3mm from the RTP. (Figure 4) Figure 4 In general design, RTP V.A. should be bigger than the TFT V.A. and RTP A.A. should be bigger than the TFT A.A. (Figure 5) 在设计面框与 RTP 组装时，应考虑到面框内侧与 RTP 外 侧的间距 E≥0.2mm. (附图 4) 通常设计时： RTP 的可视区 V.A. 应不小于 TFT 的可视区 V.A. 及 RTP 的动作区 A.A. 应不小于 TFT 的动作区 A.A. (附图 5) Warranty This product has been manufactured to our company’s specifications as a part for use in your company’s general electronic products. It is guaranteed...