Touch display modules — panel, LCD and bonding in one part number
A capacitive panel optically bonded to an LCD, with the controller mounted and the cable brought out where your housing needs it. One part number, one incoming inspection, one supplier to chase.
Indicative FOB Shenzhen for a 15.6-inch FHD module at 1–50 pcs. The LCD sets most of the price — send the resolution and brightness you need for a firm quote.
A bonded 32 inch module: cover glass, sensor, LCD and controller as one part number.
Touch module, touch display module, or a bonded panel
In an enquiry this turns up as a touch module, a capacitive touch module, a touch display module or a bonded panel. They all mean the part on this page: the touch panel, the LCD, the bonding layer and the controller arriving as one item with one part number. The alternative is buying the panel and the LCD separately and bonding them yourself, which only makes sense above a few thousand units a year.
Two things to settle before we quote: the brightness you need (500 or 1,000 nits changes the LCD, not the touch), and whether the module carries its own housing. A module without a housing is still an open-frame part, and your mechanical engineer still has to design the mount.
Air gap is where good products go bad
If you mount a touch panel over an LCD with a spacer, you get three problems: internal reflection (the image looks grey in daylight), dust between the layers, and condensation outdoors. Optical bonding removes all three.
OCA — optically clear adhesive
Solid sheet, laminated under vacuum. Transmission above 92 %, no bubbles, best for sunlight-readable and outdoor products. Highest cost, and not reworkable — a bad bond scraps the LCD.
Water glue (OCR)
Liquid adhesive cured under UV. About 15 % cheaper, more forgiving on large formats and on panels with a slight bow. Transmission 88–90 %. The usual choice for 32 inch and above.
Air gap with a frame
No bonding, just a spacer. Cheapest and serviceable, but you accept reflection and dust. Only sensible for indoor, low-brightness products where cost is the deciding factor.
Module specification
| Display | |
| Size range | 10.1 / 11.6 / 13.3 / 15.6 / 21.5 / 23.8 / 27 / 32 / 43 inch |
|---|---|
| Resolution | 1280×800, 1920×1080, 1920×1200, 2560×1440, 3840×2160 |
| Brightness | 250 / 350 / 500 / 1,000 nits (high-bright option) |
| Interface | LVDS, eDP, MIPI DSI, HDMI (with scaler board) |
| Viewing angle | 89/89/89/89 (IPS) |
| Touch | |
| Structure | G+G or G+FF, bonded to the LCD |
| Touch points | 10 (40 on request) |
| Interface | USB HID / I2C / RS232 |
| Coating | Clear, AG, AR, AF |
| Bonding | |
| Method | OCA (vacuum) / water glue (UV) / air gap |
| Transmission after bonding | ≥ 88 % (OCA ≥ 92 %) |
| Rework | Not possible on OCA; water glue rework on request |
| Environment | |
| Operating temperature | −20 °C to +70 °C |
| Storage | −30 °C to +80 °C |
| Certification | CE, FCC, RoHS |
Four answers and we can quote a module
Size and resolution
Diagonal and native resolution. If you only know the size, we propose the resolution.
Brightness
250 nits for indoor, 500 for retail, 1,000 for anything facing daylight.
Interface
What your board outputs — LVDS, eDP, MIPI or HDMI with a scaler.
Bonding method
OCA for outdoor and high brightness, water glue for large formats, air gap for cost.
Module questions
What is the difference between OCA, water glue and air gap?
Can you bond my own LCD?
What sizes can you bond?
What does a bonded module cost?
Tell us the size. We will tell you what fits.
Send a drawing, a size, or just a photo of the screen you are building around. Our engineers reply with a matched part and a price within 12 working hours.