AMOLED DISPLAY MODULES
LMT497 4.97-inch AMOLED display with on-cell touch
720 × 1280 px · MIPI DSI 4 lanes · 39-pin FPC · RM67295 · on-cell touch
LMT497 is a 4.97-inch HD AMOLED module with a 720 × 1280 active matrix, MIPI DSI 4-lane interface, RM67295 driver and CHSC5448 on-cell touch controller. The display is self-emissive, so there is no backlight assembly; the 39-pin FPC carries the MIPI lanes, power rails and the touch I²C bus.
LMT497 specifications
| Parameter | Specification |
|---|---|
| Display diagonal | 4.97 inch |
| Resolution | 720 RGB × 1280 |
| Panel | LTPS AMOLED, self-emissive |
| Interface | MIPI DSI, 4 lanes |
| Connector | 39-pin soldered FPC |
| Driver IC | RM67295 (Raydium) |
| Touch | On-cell capacitive, CHSC5448 controller |
| Module outline | 63.12 (H) × 116.72 (V) mm, supplier drawing p25 |
| Active area | 61.884 (H) × 110.016 (V) mm |
| Pixel pitch | 0.08595 × 0.08595 mm (85.95 µm; RGB subpixel 28.65 µm) |
| Display color | 16.7M (RGB × 8 bit) |
| Brightness | 350 cd/m² typ. |
| Glass thickness | 0.20 mm LTPS / 0.30 mm encapsulation |
| Power rails | VBAT 2.9–4.5 V; VDDI 1.65–3.6 V; VCI 2.5–4.8 V; TP AVDD 2.7–3.6 V; IOVCC 1.65–3.6 V |
| Operating temperature | −20 ~ +70 °C |
| Storage temperature | −30 ~ +80 °C |
| Weight | TBD |
Values above are transcribed from QT497_HD_AMOLED Product Specification Rev 01 (2021-04-21): features and mechanical table p4, maximum ratings p5, electrical characteristics p5–p6, pin definition p7–p8, power sequence p9–p10 and outline drawing p25. TBD means the supplier has not published the value; nothing is estimated.
Integration notes for LMT497
The 39-pin FPC brings in VBAT on pins 2–6, VCI on pin 30 and VDDIO on pin 13. MIPI D0, D1, D2, D3 and the clock pair occupy pins 15–28; TE is pin 11 and RESX is pin 12. Touch uses TP_SDA / TP_SCL on pins 35 / 36 with TP_INT on pin 34 and TP_RESX on pin 37. The complete pin table is on datasheet p7–p8 and repeated on the drawing in figure 6.
The panel is on-cell touch: the touch sensor is part of the AMOLED module, so there is no separate touch SKU. For a host design, allow for the CHSC5448 I²C bus and its interrupt line in addition to the MIPI display lanes.
Power-up follows the sequence on p9–p10. For a normal VCI rise time above 1 ms, use the standard sequence. If VCI rises faster than 1 ms, the supplier recommends the VCI H-L-H sequence to avoid a start-up issue; the first high period is suggested at 20 ms and the low period must take Voff between 2.6 V and 1.5 V.
The supplier document carries three outline statements: p4 lists 70.80 × 127.60 × 1.92 mm as “Dimension outline”, p4 lists 64.12 × 113.82 mm as “Encapsulation outline”, and the p25 drawing gives 63.12 ± 0.15 × 116.72 ± 0.15 mm. This page uses the p25 drawing because it is on the same drawing as the 61.884 × 110.016 mm active area and the two values reconcile. The larger p4 figure appears to include the unfolded FPC and connector; confirm the final enclosure stack with the supplier before tooling.
Weight is TBD in the supplier document. Figure 6 is the supplier mechanical drawing, not a redraw; use it for FPC position, bend area and tolerances.
Model-specific questions
What resolution and interface does LMT497 use?
720 RGB × 1280 pixels over MIPI DSI with 4 lanes, RM67295 driver, on a 39-pin FPC.
Does the module include touch?
Yes. Touch is on-cell with a CHSC5448 controller, connected through the TP I²C pins on the same 39-pin FPC.
Which outline dimension should be used for the enclosure?
The p25 drawing gives 63.12 × 116.72 mm. The p4 document also lists 70.80 × 127.60 mm as a dimension outline and 64.12 × 113.82 mm as an encapsulation outline; the difference is consistent with an unfolded FPC. Confirm the enclosure stack with the supplier before tooling.
What is needed for a quotation?
Specify LMT497, quantity, host platform and MIPI lane count, touch interface voltage, FPC length if customized, and the operating environment. Price, stock and lead time are confirmed in the quotation.
AMOLED displays · All display modules · Request a quotation for LMT497
Product images and engineering references
