China display for rotary control knob Manufacturer, Supplier, Factory

3.5" 320x480 portrait TFT LCD, 2.2 mm thin, 360 cd/m2 with floor and ceiling. SPI + 18-bit RGB, TE out, 1.65 V logic. This 3.5 inch TFT display by Victronix is commonly used in industrial HMI, medical diagnostics, portable instrumentation, and embedded control systems.

The VXT397IWI-01P is a 3.97-inch 480 x 800 portrait TFT LCD module with a 4-wire resistive touch panel, and the touch is what distinguishes it from the other 480 x 800 panel in this size.Resistive sensing responds to pressure rather than to a finger's conductivity, so it works with gloves, wet hands, a stylus or a tool tip, which is why it is still the choice for industrial and medical equipment. The optical table is also unusually well specified: luminance carries a stated minimum of 240 and a stated maximum of 420 alongside the 300 typical, and contrast carries a 300 minimum, so there are figures you can hold us to at incoming inspection - which is not the case on several modules in this size. Two things need settling before you commit. This is a TN panel: the specification states a 6 o'clock viewing direction, grey-scale inversion at 12 o'clock, and vertical viewing angles of 50 degrees one way and 25 the other, so mounting orientation has a right answer - if your product is handheld and the orientation is not under your control, the IPS panel also in this size is the better buy.

The VXT430HWE-03-W is a 4.3-inch TFT module with 800 x 480 resolution — nearly three times the pixel count of the 480 x 272 panels that dominate this size — and an operating range of -30 to +85°C, the widest of any 4.3-inch module we offer. Storage goes to -40°C, the only module in the range rated that low. It is transmissive with an anti-glare polarizer and no touch panel. What stands out is how much is published: brightness of 640 minimum and 800 typical, contrast of 640 minimum and 800 typical, and logic current given for three screen contents — 73 mA on black, 102 mA on a single colour, 105 mA on white — rather than one vague number, which lets you size for the worst case and shows a dark interface genuinely saves power. The backlight is 16 LEDs at 1.024 W, and reliability covers ten tests including vibration at 10-55 Hz and mechanical shock at 60 G, with MTBF of 50,000 hours.

The VXT240FBQS-01 is a transflective, sunlight readable 2.4-inch TFT module — and the only one in our range that pairs transflective construction with an anti-glare polarizer. Transflective gives it a reflective path so it reads by ambient light outdoors with the backlight off; anti-glare stops the surface mirroring the sky. It also posts 1500:1 contrast, higher than any transmissive panel we make. The display is 240x320 portrait with square pixels, driven by an ST7789T3 over an 8- or 16-bit MCU bus selected by one pin. Rated -20 to +70°C.

The Victronix VXT700SWHW-01 is rated to +85°C, and down to -30°C — a 15°C wider window at the top and 10°C at the bottom than the usual industrial range. That difference is what lets a display live in a sealed enclosure under a hot roof, next to a power stage, or in a vehicle parked in direct sun, without a heater or a fan. Helping it along is a genuinely low power draw: just 100 mA typical at 3.3 V, about 0.33 W for the panel logic, so the module adds little heat of its own to an already hot box. The 800 x 480 panel uses square 0.1905 mm pixels for undistorted graphics, connects over single-channel LVDS on a compact 20-pin I-PEX or JAE connector, and offers MODE (6/8-bit) and SC (scan direction) control pins plus a separate 6-pin backlight connector with BLEN enable and VPDIM PWM dimming.

The VX50472 is a VA segment LCD module with six digits, dedicated status icons and a white LED backlight. A 64 × 32 mm outline, 3V LCD drive and COG + FPC construction support integration into compact instruments and control panels.