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Prepared by:
Gong huimei
Date: 2022-07-27
Rev.
Descriptions
0.1
- Preliminary Draft release
0.2
-Update Electrical Characteristics
0.3
-Update Optical Characteristics
URL:
www.topwaydisplay.com
HMT028ATB-C
LCD Module User Manual
Checked by:
Date:
Approved by:
Date:
2019-05-10
2020-07-16
2022-07-27
Name: HMT028ATB-C-Manual-Rev0.3
Release Date
Document
Page: 1 of 14
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Table of Contents
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Summary of Contents for Topway HMT028ATB-C
- Page 1 LCD Module User Manual Prepared by: Checked by: Approved by: Gong huimei Date: 2022-07-27 Date: Date: Rev. Descriptions Release Date - Preliminary Draft release 2019-05-10 -Update Electrical Characteristics 2020-07-16 -Update Optical Characteristics 2022-07-27 URL: www.topwaydisplay.com Document Name: HMT028ATB-C-Manual-Rev0.3 Page: 1 of 14...
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Page 2: Table Of Contents
4.3 Command Descriptions ..........................7 5 Optical Characteristics ..........................8 6 LCD Module Design and Handling Precautions ..................10 7 CTP Mounting Instructions ........................... 11 8 RTP Mounting Instructions ........................... 12 URL: www.topwaydisplay.com Document Name: HMT028ATB-C-Manual-Rev0.3 Page: 2 of 14... -
Page 3: Basic Specification
HMT028ATB-C 1 Basic Specification TOPWAY HMT028ATB-C is a Smart TFT Module with 32bit MCU on board. Its graphics engine provides numbers of outstanding features. It supports 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. -
Page 4: Terminal Function
*1. Display files preload through this terminal. *2. Connect to U-Drive (with OTG cable), for files transfer *3. For U-Drive to download project: R22=27R, R23=27R, R24=NC, R25=NC.(default) For PC direct download project: R22=NC, R23=NC, R24=27R, R25=27R. URL: www.topwaydisplay.com Document Name: HMT028ATB-C-Manual-Rev0.3 Page: 4 of 14... -
Page 5: Absolute Maximum Ratings
MAX. Unit Pin/FUNC Operating Voltage Rx Input Hi 0.8V Rx Input Lo 0.2 V Tx Output Hi 0.7V Tx Output Lo 0.3V Operating Current VDD (*1) Note. *1. Normal display condition URL: www.topwaydisplay.com Document Name: HMT028ATB-C-Manual-Rev0.3 Page: 5 of 14... -
Page 6: Function Specifications
Control and Draw Engine Display files are stored inside FLASH memory area. They are preloaded to HMT028ATB-C for stand alone interface use. Those files are preloaded via USB interface (U-Drive or PC download). All the interface flow and the touch response are based on the preloaded files VP variables memory is inside RAM area, it provides real time access via UART by the HOST or display onto the TFT. -
Page 7: Quick Start Guide
Graphics Editor Import pictures design UI flow Download to Smart LCD power on & display Connect to host Show real time data Command Descriptions Please refer to “SMART LCD Command Manual ” URL: www.topwaydisplay.com Document Name: HMT028ATB-C-Manual-Rev0.3 Page: 7 of 14... -
Page 8: Optical Characteristics
0.662 0.149 0.099 0.199 Blue Note 1,6 0.063 0.013 0.113 Uniformity Note 1,2 NTSC Note 1,6 Luminance cd/㎡ Note 1 Note：The parameter is slightly changed by temperature, driving voltage and materiel. URL: www.topwaydisplay.com Document Name: HMT028ATB-C-Manual-Rev0.3 Page: 8 of 14... - Page 9 “white” to “black”(rising time), respectively. Area of NTSC triangle The response time is defined as the time interval between the 10% and 90% of amplitudes.Refer to figure as below. URL: www.topwaydisplay.com Document Name: HMT028ATB-C-Manual-Rev0.3 Page: 9 of 14...
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Page 10: Lcd Module Design And Handling Precautions
损坏或失效而影响产品可靠性。 When mounting LCD module, please make sure it is free 装配液晶显示模块时，请务必注意避免液晶显示模块的 from twisting, warping and bending. 扭曲或变形。 Do not add excessive force on surface of LCD, which may 请勿挤压液晶显示屏表面，这将导致显示颜色的异常。 URL: www.topwaydisplay.com Document Name: HMT028ATB-C-Manual-Rev0.3 Page: 10 of 14... -
Page 11: Ctp Mounting Instructions
The mounting structure should be strong enough to 安装结构应具有足够的强度，以防止外部不均匀力或扭 prevent external uneven force or twist act onto the module 曲力作用到模块上。 URL: www.topwaydisplay.com Document Name: HMT028ATB-C-Manual-Rev0.3 Page: 11 of 14... -
Page 12: Rtp Mounting Instructions
到 V.A.区的距离 C≥0.50mm. (附图 4) C≥0.50mm. (Figure 4) The bezel side wall should keep space E= 0.2 ~ 0.3mm 在设计面框与 RTP 组装时，应考虑到面框内侧与 RTP 外侧 from the RTP. (Figure 4) 的间距 E≥0.2mm. (附图 4) URL: www.topwaydisplay.com Document Name: HMT028ATB-C-Manual-Rev0.3 Page: 12 of 14... - Page 13 We cannot accept responsibility for intellectual property of a third part, which may arise through the application of our product to our assembly with exception to those issues relating directly to the structure or method of manufacturing of our product. URL: www.topwaydisplay.com Document Name: HMT028ATB-C-Manual-Rev0.3 Page: 13 of 14...
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