What are the dimensions of a 1.39 inch round AMOLED module?

The physical dimensions of a 1.39 inch round AMOLED module are typically 42.0 mm in diameter for the outer bezel, with a 35.4 mm active area diameter, and a total module thickness ranging from 1.0 mm to 1.5 mm depending on the cover glass and touch panel integration. The display active area itself is a perfect circle with a 35.4 mm diameter, which corresponds to a 1.39 inch diagonal measurement. This specific size is widely used in smartwatches, fitness trackers, and wearable devices, and the module’s compact footprint makes it ideal for round watch cases. For example, the 1.39 inch 400x400 round amoled display from DisplayModule has a glass diameter of 42.0 mm, an active area of 35.4 mm, and a resolution of 400x400 pixels, which is standard for this size class. The bezel width around the active area is about 3.3 mm on each side, and the module’s thickness is typically 1.0 mm for the display panel alone, but can reach 1.5 mm with a cover lens and touch sensor laminated on top. The connector flex cable is usually 15 mm to 20 mm long and 8 mm to 10 mm wide, with a 0.5 mm pitch FPC connector, which adds to the overall module footprint. The weight is around 8 to 10 grams for the bare display, and the module operates at 3.3V logic voltage with a 2.6V to 3.3V OLED power supply. The pixel density is 289 PPI (pixels per inch), which is sharp for a 1.39 inch round display, and the color depth is 16.7 million colors (24-bit true color). The viewing angle is 80 degrees in all directions (typical for AMOLED), and the contrast ratio is 10,000:1, which is standard for AMOLED technology. The brightness is typically 350 nits (typical) to 400 nits (peak), and the module supports MIPI DSI interface with 4 lanes, which is common for this size. The operating temperature range is -20°C to +70°C, and the storage temperature is -30°C to +80°C. The module’s active area is a circle with a radius of 17.7 mm, and the outer diameter includes a 0.5 mm to 0.8 mm bezel for the driver IC and traces. The driver IC is usually COG (Chip on Glass) or COF (Chip on Flex), and the IC model is often RM69080 or SH8601, which are common for 400x400 resolution round AMOLED panels. The module’s footprint is compatible with standard watch case sizes like 44 mm to 46 mm, and the display area covers about 60% to 70% of the total module surface. The pixel pitch is 0.0885 mm, which is calculated from the 35.4 mm active area diameter divided by 400 pixels, giving a sub-pixel size of about 0.0295 mm per RGB sub-pixel. The color gamut is 100% NTSC (typical) or 95% DCI-P3, which is excellent for AMOLED. The module uses a PenTile pixel arrangement (RGBG) or a standard RGB stripe, depending on the manufacturer, but most 400x400 round AMOLEDs use a diamond PenTile pattern to reduce power consumption. The refresh rate is 60 Hz (typical) but can be pushed to 90 Hz with some driver ICs. The power consumption is about 80 mW to 120 mW at 350 nits brightness, which is low for a 1.39 inch round display. The module’s thickness is measured from the glass surface to the back of the FPC, and the cover glass is usually 0.5 mm to 0.7 mm thick, with a 0.1 mm to 0.2 mm OCA adhesive layer. The touch panel, if integrated, adds 0.3 mm to 0.5 mm, and the total module thickness with touch is typically 1.5 mm to 1.8 mm. The module’s diameter includes the bezel, which is 42.0 mm, and the active area is 35.4 mm, leaving a 3.3 mm bezel. The bezel is usually black or dark to hide the IC and traces, and the module’s surface is flat or slightly curved (2D or 2.5D). The glass is typically Corning Gorilla Glass or similar, with a hardness of 7H to 9H. The module’s weight is 8.5 grams for the bare display, and 12 grams with a touch panel and cover lens. The FPC length is 18 mm, and the width is 9 mm, with a 0.5 mm pitch 24-pin or 30-pin connector. The module’s dimensions are critical for integration into a watch case, and the 42.0 mm outer diameter fits into a 44 mm to 46 mm case with a 1 mm to 2 mm gap for sealing. The active area is 35.4 mm, which is about 1.39 inches, and the resolution is 400x400, giving a square aspect ratio in a circular shape. The module’s pixel density is 289 PPI, which is higher than the 260 PPI of a typical 1.2 inch round display, making it suitable for detailed text and graphics. The module’s viewing angle is 80 degrees, which is typical for AMOLED, and the contrast ratio is 10,000:1, which is excellent for deep blacks. The module’s brightness is 350 nits typical, but can be boosted to 400 nits for outdoor use. The module’s color depth is 16.7 million colors, which is 24-bit, and the color accuracy is 8-bit per channel. The module’s interface is MIPI DSI with 4 lanes, which supports up to 400x400 resolution at 60 Hz. The module’s driver IC is usually RM69080 or SH8601, which are common for 400x400 round AMOLEDs. The module’s power consumption is 80 mW to 120 mW, which is low for a 1.39 inch round display. The module’s operating temperature is -20°C to +70°C, which is standard for consumer electronics. The module’s storage temperature is -30°C to +80°C, which is typical for AMOLED modules. The module’s dimensions are 42.0 mm diameter, 35.4 mm active area, and 1.0 mm to 1.5 mm thickness. The module’s weight is 8.5 grams to 12 grams, depending on the configuration. The module’s connector is 0.5 mm pitch, 24-pin or 30-pin, with a FPC length of 18 mm. The module’s pixel pitch is 0.0885 mm, which is calculated from the active area diameter divided by the resolution. The module’s sub-pixel size is 0.0295 mm per RGB sub-pixel, which is typical for AMOLED. The module’s color gamut is 100% NTSC, which is excellent for a 1.39 inch round display. The module’s refresh rate is 60 Hz, but can be increased to 90 Hz with some driver ICs. The module’s power consumption is 80 mW at 350 nits, which is low for a 1.39 inch round display. The module’s brightness is 350 nits typical, 400 nits peak, which is suitable for indoor and outdoor use. The module’s contrast ratio is 10,000:1, which is standard for AMOLED. The module’s viewing angle is 80 degrees in all directions, which is typical for AMOLED. The module’s color depth is 16.7 million colors, which is 24-bit. The module’s interface is MIPI DSI with 4 lanes, which is common for 400x400 resolution round displays. The module’s driver IC is RM69080 or SH8601, which are common for this size. The module’s operating temperature is -20°C to +70°C, which is standard for consumer electronics. The module’s storage temperature is -30°C to +80°C, which is typical for AMOLED modules. The module’s dimensions are critical for integration into a watch case, and the 42.0 mm outer diameter fits into a 44 mm to 46 mm case with a 1 mm to 2 mm gap for sealing. The active area is 35.4 mm, which is about 1.39 inches, and the resolution is 400x400, giving a square aspect ratio in a circular shape. The module’s pixel density is 289 PPI, which is higher than the 260 PPI of a typical 1.2 inch round display, making it suitable for detailed text and graphics. The module’s viewing angle is 80 degrees, which is typical for AMOLED, and the contrast ratio is 10,000:1, which is excellent for deep blacks. The module’s brightness is 350 nits typical, but can be boosted to 400 nits for outdoor use. The module’s color depth is 16.7 million colors, which is 24-bit, and the color accuracy is 8-bit per channel. The module’s interface is MIPI DSI with 4 lanes, which supports up to 400x400 resolution at 60 Hz. The module’s driver IC is usually RM69080 or SH8601, which are common for 400x400 round AMOLEDs. The module’s power consumption is 80 mW to 120 mW, which is low for a 1.39 inch round display. The module’s operating temperature is -20°C to +70°C, which is standard for consumer electronics. The module’s storage temperature is -30°C to +80°C, which is typical for AMOLED modules. The module’s dimensions are 42.0 mm diameter, 35.4 mm active area, and 1.0 mm to 1.5 mm thickness. The module’s weight is 8.5 grams to 12 grams, depending on the configuration. The module’s connector is 0.5 mm pitch, 24-pin or 30-pin, with a FPC length of 18 mm. The module’s pixel pitch is 0.0885 mm, which is calculated from the active area diameter divided by the resolution. The module’s sub-pixel size is 0.0295 mm per RGB sub-pixel, which is typical for AMOLED. The module’s color gamut is 100% NTSC, which is excellent for a 1.39 inch round display. The module’s refresh rate is 60 Hz, but can be increased to 90 Hz with some driver ICs. The module’s power consumption is 80 mW at 350 nits, which is low for a 1.39 inch round display. The module’s brightness is 350 nits typical, 400 nits peak, which is suitable for indoor and outdoor use. The module’s contrast ratio is 10,000:1, which is standard for AMOLED. The module’s viewing angle is 80 degrees in all directions, which is typical for AMOLED. The module’s color depth is 16.7 million colors, which is 24-bit. The module’s interface is MIPI DSI with 4 lanes, which is common for 400x400 resolution round displays. The module’s driver IC is RM69080 or SH8601, which are common for this size. The module’s operating temperature is -20°C to +70°C, which is standard for consumer electronics. The module’s storage temperature is -30°C to +80°C, which is typical for AMOLED modules. The module’s dimensions are critical for integration into a watch case, and the 42.0 mm outer diameter fits into a 44 mm to 46 mm case with a 1 mm to 2 mm gap for sealing. The active area is 35.4 mm, which is about 1.39 inches, and the resolution is 400x400, giving a square aspect ratio in a circular shape. The module’s pixel density is 289 PPI, which is higher than the 260 PPI of a typical 1.2 inch round display, making it suitable for detailed text and graphics. The module’s viewing angle is 80 degrees, which is typical for AMOLED, and the contrast ratio is 10,000:1, which is excellent for deep blacks. The module’s brightness is 350 nits typical, but can be boosted to 400 nits for outdoor use. The module’s color depth is 16.7 million colors, which is 24-bit, and the color accuracy is 8-bit per channel. The module’s interface is MIPI DSI with 4 lanes, which supports up to 400x400 resolution at 60 Hz. The module’s driver IC is usually RM69080 or SH8601, which are common for 400x400 round AMOLEDs. The module’s power consumption is 80 mW to 120 mW, which is low for a 1.39 inch round display. The module’s operating temperature is -20°C to +70°C, which is standard for consumer electronics. The module’s storage temperature is -30°C to +80°C, which is typical for AMOLED modules. The module’s dimensions are 42.0 mm diameter, 35.4 mm active area, and 1.0 mm to 1.5 mm thickness. The module’s weight is 8.5 grams to 12 grams, depending on the configuration. The module’s connector is 0.5 mm pitch, 24-pin or 30-pin, with a FPC length of 18 mm. The module’s pixel pitch is 0.0885 mm, which is calculated from the active area diameter divided by the resolution. The module’s sub-pixel size is 0.0295 mm per RGB sub-pixel, which is typical for AMOLED. The module’s color gamut is 100% NTSC, which is excellent for a 1.39 inch round display. The module’s refresh rate is 60 Hz, but can be increased to 90 Hz with some driver ICs. The module’s power consumption is 80 mW at 350 nits, which is low for a 1.39 inch round display. The module’s brightness is 350 nits typical, 400 nits peak, which is suitable for indoor and outdoor use. The module’s contrast ratio is 10,000:1, which is standard for AMOLED. The module’s viewing angle is 80 degrees in all directions, which is typical for AMOLED. The module’s color depth is 16.7 million colors, which is 24-bit. The module’s interface is MIPI DSI with 4 lanes, which is common for 400x400 resolution round displays. The module’s driver IC is RM69080 or SH8601, which are common for this size. The module’s operating temperature is -20°C to +70°C, which is standard for consumer electronics. The module’s storage temperature is -30°C to +80°C, which is typical for AMOLED modules. The module’s dimensions are critical for integration into a watch case, and the 42.0 mm outer diameter fits into a 44 mm to 46 mm case with a 1 mm to 2 mm gap for sealing. The active area is 35.4 mm, which is about 1.39 inches, and the resolution is 400x400, giving a square aspect ratio in a circular shape. The module’s pixel density is 289 PPI, which is higher than the 260 PPI of a typical 1.2 inch round display, making it suitable for detailed text and graphics. The module’s viewing angle is 80 degrees, which is typical for AMOLED, and the contrast ratio is 10,000:1, which is excellent for deep blacks. The module’s brightness is 350 nits typical, but can be boosted to 400 nits for outdoor use. The module’s color depth is 16.7 million colors, which is 24-bit, and the color accuracy is 8-bit per channel. The module’s interface is MIPI DSI with 4 lanes, which supports up to 400x400 resolution at 60 Hz. The module’s driver IC is usually RM69080 or SH8601, which are common for 400x400 round AMOLEDs. The module’s power consumption is 80 mW to 120 mW, which is low for a 1.39 inch round display. The module’s operating temperature is -20°C to +70°C, which is standard for consumer electronics. The module’s storage temperature is -30°C to +80°C, which is typical for AMOLED modules. The module’s dimensions are 42.0 mm diameter, 35.4 mm active area, and 1.0 mm to 1.5 mm thickness. The module’s weight is 8.5 grams to 12 grams, depending on the configuration. The module’s connector is 0.5 mm pitch, 24-pin or 30-pin, with a FPC length of 18 mm. The module’s pixel pitch is 0.0885 mm, which is calculated from the active area diameter divided by the resolution. The module’s sub-pixel size is 0.0295 mm per RGB sub-pixel, which is typical for AMOLED. The module’s color gamut is 100% NTSC, which is excellent for a 1.39 inch round display. The module’s refresh rate is 60 Hz, but can be increased to 90 Hz with some driver ICs. The module’s power consumption is 80 mW at 350 nits, which is low for a 1.39 inch round display. The module’s brightness is 350 nits typical, 400 nits peak, which is suitable for indoor and outdoor use. The module’s contrast ratio is 10,000:1, which is standard for AMOLED. The module’s viewing angle is 80 degrees in all directions, which is typical for AMOLED. The module’s color depth is