ViewSonic LCD Display: Limited Warranty

ViewSonic® Limited Warranty

This document describes the warranty terms for all ViewSonic LCD products in Cambodia.


ViewSonic warrants its products to be free from defects in material and workmanship during the warranty period. If a product proves to be defective in material or workmanship during the warranty period, ViewSonic will, at its sole option, repair or replace the product with a similar or equivalent product. Replacement products or parts may include remanufactured or refurbished parts or components.


ViewSonic LCD monitors cover three (3) years * “Carry-in Service” with limited warranty on parts and labor subjected to:

Pixel warranty criteria:

  1. 20" & below LCD: 3 bright pixels, 3 dark pixels, or a combination of 3
  2. 21" & greater LCD: 5 bright pixels, 5 dark pixels, or a combination of 5

*Carry-in Service: End user needs to carry-in the unit for repair on his/her cost.


Warranty is valid only for the first consumer purchaser. In order to receive warranty service, proof of purchase of the ViewSonic product is required.

Warranty does not cover:

  1. Any product, on which the serial number has been defaced, modified or removed.
  2. Damage, deterioration or malfunction resulting from:
    • Incorrect use, carelessness, unauthorized alterations, improper storage,
    • Accident, fire, water, lightning, or other acts of nature, unauthorized product modification, or failure to follow instructions supplied with the product.
    • Repair or attempted repair by anyone not authorized by ViewSonic.
    • Damage to or loss of any programs, data or removable storage media.
    • Software or data loss occurring during repair or replacement.
    • Any damage of the product due to shipment.
    • Removal or installation of the product.
    • Causes external to the product, such as electric power fluctuations or failure or liquid permeated into the panel.
    • Use of supplies or parts not meeting ViewSonic's specifications.
    • Normal wear and tear.
    • Any image burn upon the polarizer or LCD panels.
    • Static (non-moving) images displayed for lengthy periods of time (also referred to as image burn-in).
    • Any other cause which does not relate to a product defect.
  3. Removal, installation, and set-up service charges.
  4. Damage to external parts including the cabinet.


Limitation of implied warranties:

There are no warranties, express or implied, which extend beyond the description contained herein including the implied warranty of merchantability and fitness for a particular purpose. Exclusion of damages:

  1. ViewSonic's liability is limited to the cost of repair or replacement of the product.
  2. ViewSonic shall not be liable for :
    • Damage to other property caused by any defects in the product, damages based upon inconvenience, loss of use of the product, loss of time, loss of profits, loss of business opportunity, loss of goodwill, interference with business relationships, or other commercial loss, even if advised of the possibility of such damages.
    • Any other damages, whether incidental, consequential or otherwise.
    • Any claim against the customer by any other party.

Sales outside Cambodia

For ViewSonic products sold outside Myanmar, contact your ViewSonic dealer or ViewSonic for warranty information and service.


For information on obtaining warranty service, you may call your ViewSonic dealer or ViewSonic Service Centre or email to .

To obtain warranty service, customer is required to provide:

  1. The original dated sales receipt / invoice
  2. Your name, address and phone number
  3. The model and serial number of the product
  4. The description of problem(s) of product
  5. Bring or ship the product prepaid in the original packaging, with the associated accessories to ViewSonic authorized service center

LCD display: LCD pixel criteria

ViewSonic is committed to customer satisfaction by providing the highest quality products in the industry. The result is that our LCD displays generally have very few non-performing pixels. For example, an 18" SXGA (1280 x 1024) display has nearly 4 million sub-pixels. A product exhibiting 7 non-performing pixels would equate to an extremely small 0.00018 percent of the total sub-pixels.

(1280 Horizontal Pixels) * (1024 Vertical Pixels) * (3 sub-pixels per pixel) = 3,932,160 sub-pixels

[(7 non-performing pixels) / (3,932,160 sub-pixels)] * 100% = 0.00018%

To ensure the highest performing displays, ViewSonic sets limits as to the allowable number of pixel anomalies.

It is possible that any replacement display may also have some non-performing sub-pixels. This should be considered when requesting a warranty exchange.


A pixel or picture element, is composed of three sub-pixels in the primary colors of red, green, and blue. At each pixel position in an AMLCD (active matrix liquid crystal display) flat screen monitor, three cells of liquid crystal material form the red, green and blue sub-pixels that together allow the full range of colors to be displayed. Individual transistors are arranged in an array on the rear glass to control each sub-pixel. An anomaly on any one of these individual transistors will cause a bright or dark pixel to appear. These anomalies generally occur only during manufacturing, and additional bright or dark pixels should not appear over time.

The allowable number of non-performing pixels has a direct impact on the yield of the process. If the industry attempted to set a zero standard, the current manufacturing yield would be so low that the cost of an LCD display would be many times higher than it is today. Luckily, most customers and applications are tolerant of a low level of non-performing pixels and prefer the lower cost that the existing standards allow.