Modern LED, LCD, QLED, OLED, and Smart televisions use advanced display technology that depends on COF (Chip-on-Film) bonding to transfer signals from the main display circuits to the LCD panel. When these delicate bonded connections become loose or damaged, televisions may develop display faults such as vertical lines, horizontal lines, half-screen images, flickering displays, or complete picture failure.
At Pro-Logic Technologies, we provide professional television diagnostics for display-related faults. Where appropriate and technically feasible, we perform COF bonding and panel-level repairs using specialized bonding equipment to address certain connection failures. Because panel faults vary significantly, every television is carefully assessed before determining whether a bonding repair is suitable.
Television Problems That May Involve COF Bonding
Some display problems that may be associated with COF or panel connections include:
- Vertical lines on the screen
- Horizontal lines
- Half display
- Split screen
- Double images
- Ghost images
- Flickering picture
- Missing picture on one side
- Coloured lines
- Distorted display
- Image freezing
- Display intermittently disappearing
- Screen flashing
- Pressure-sensitive display faults
- Partial picture loss
- Poor panel signal transmission
Not every display fault is caused by a bonding issue. Similar symptoms can also result from a faulty T-Con board, ribbon cable, motherboard, or the LCD panel itself. Our technicians perform detailed diagnostics to identify the actual source of the problem.
Our Diagnostic Process
Before recommending a bonding repair, we carry out comprehensive testing, including:
- LCD panel inspection
- T-Con board diagnostics
- Ribbon cable inspection
- COF connection assessment
- Display voltage measurements
- Signal integrity testing
- Motherboard diagnostics
- Power supply verification
- Picture quality evaluation
This process helps determine whether the fault is repairable and whether a bonding procedure is technically appropriate.
Display Technologies We Service
We diagnose and repair display-related faults in many television types, including:
- LED TVs
- LCD TVs
- Smart TVs
- Android TVs
- Google TVs
- QLED TVs
- Mini LED TVs
- OLED TVs (where applicable to the fault)
- Commercial display panels
Television Brands We Service
Our technicians repair televisions from many leading brands, including:
- Samsung
- LG
- Sony
- TCL
- Hisense
- Skyworth
- Vitron
- Vision Plus
- Panasonic
- Philips
- Toshiba
- Sharp
- Haier
- Syinix
- Nobel
- Bruhm
- Xiaomi
- Changhong
- JVC
- Beko
- AIWA
- Mika
- Roch
- And many other television brands.
Why Choose Pro-Logic Technologies?
Our technicians combine experience, professional diagnostic equipment, and careful assessment to recommend the most appropriate repair for your television. We focus on identifying the root cause of display faults rather than replacing parts unnecessarily. Every repair is followed by functional testing to verify picture quality and overall television performance.
Contact Pro-Logic Technologies
Phone: 0723763173
Email: info@prologictechnologies.co.ke
Website: https://prologictechnologies.co.ke
Workshop: Kangari Building, 3rd Floor, Room KA7, Luthuli Avenue, Nairobi CBD.
If your television has vertical lines, horizontal lines, a half screen, flickering display, coloured lines, or other display-related faults, contact Pro-Logic Technologies for a professional diagnosis. We will assess whether the issue is related to the panel, T-Con board, ribbon connections, or whether a COF bonding repair is a technically suitable solution.
