Information Technology

LG W1934S-BN 19 inch LCD Monitor Teardown

01 February 2010
The following is an overview of a teardown analysis conducted by IHS Benchmarking.

Overview / Main Features

The LG W1934S is a 19-inch LCD computer monitor. It features VGA-only inputs and a 16:10 display format. The single largest cost item within the LG monitor is the Innolux 19-inch TFT LCD display with 1440 x 900 pixel resolution.

LG W1934S-BN 19 inch LCD Monitor Main ImageLG W1934S-BN 19 inch LCD Monitor Main Image
Target Market

Consumer Computer Peripherals


Unknown release date

Pricing and Availability

Pricing - The LG W1934S can be purchased for 125 (or approximately $200) at the time of writing [Oct. 2009].

Availability - This specific model is made available for the European market.

Volume Estimations

For the purposes of this teardown analysis, we have assumed a lifetime production volume of 750K units.

As a reminder, teardown volume production assumptions are primarily used for our cost analysis in terms of amortized NRE and tooling costs, especially for custom components specific to the model being analyzed (mechanical components especially). Unless assumed volumes are different by an order of magnitude, minor changes in volume (say 1 million vs. 2) rarely have a large net effect on our final analysis because of this.

LG W1934S-BN 19 inch LCD Monitor Cost AnalysisLG W1934S-BN 19 inch LCD Monitor Cost Analysis
Cost Notes

Main Cost Drivers Representing ~90% of total materials cost

Innolux Display Corp - MT190AW02 - Display Value Line Item - 19' TFT LCD, WSXGA, 1440 x 900 Pixels (16:10), 0.285mm x 0.285mm Pixel Size, 16.7M Colors, 1000:1 Contrast Ratio, 300cd/m^2 Brightness, 5ms Response Time, Active Area: 409.0mm x 255.6mm

Power Supply Line Item

Rear Mounting Panel - Electro-Galvanized Steel, Stamped/Formed, 2-Pieces, Clinched, w/ 1 Pressed-In Internally Threaded Metal Standoff

Enclosure, Main, Rear - Injection Molded ABS

Enclosure, Main, Front Bezel - Injection Molded ABS, Silkscreened

MStar Semiconductor - TSUM16AL-LF-1 - LCD Display Controller IC

Serial Cable - D-Sub 15-Pin Male to Male, w/ Screw Locks

Box - Corrugated Cardboard, 2 Color Print, 19.6' x 15.0' x 5.2'

Stand Base - Injection Molded ABS

Total BOM Costs $ 106.38

What Is Not Included in our Cost Analysis

The total materials and manufacturing costs reported in this analysis reflect ONLY the direct materials cost (from component vendors and assorted EMS providers), AND manufacturing with basic test. Not included in this analysis are costs above and beyond the material manufacture of the core device itself - cost of intellectual property, royalties and licensing fees (those not already included into the per component price), software, software loading and test, shipping, logistics marketing and other channel costs including not only EMS provider and the OEM's margin, but that of other resellers. Our cost analysis is meant to focus on those costs incurred in the manufacture of the core device and exceptionally in some circumstances the packaging and literature as well.

Manufacturing Notes

Country of Origin / Volume Assumptions

Based on markings, the device was assembled in China. Furthermore, we have assumed that custom mechanicals (plastics, metals, etc.) were also sourced in low cost regions within China.

Country of origin assumptions relate directly to the associated cost of manufacturing, where calculated by iSuppli. In the cases of 'finished' sub-assemblies (such as VGA connectors), we do not calculate internal manufacturing costs, but rather assess the market price of the finished product in which case country of origin assumptions may or may not have a direct effect on pricing.

Remember also that labor rates are applied directly only to hand inserted components and systems in our bill of materials, and although regional assumptions do, these new rates do not have a direct effect on our modeled calculations of placement costs for automated SMD assembly lines. "Auto inserted components (such as SMT components) placement costs are calculated by an iSuppli algorithm which allocates a cost per component based on the size and pincount of the device. This calculation is affected by country or region of origin as well.

LG W1934S-BN 19 inch LCD Monitor - Bottom View w/ Stand RemovedLG W1934S-BN 19 inch LCD Monitor - Bottom View w/ Stand Removed

Design for Manufacturing / Device Complexity

The LG W1934S has an overall component count of 394 (excluding box contents), of which, 100 are mechanical in nature.

Component counts have a direct bearing on the overall manufacturing cycle times and costs, and also can increase or decrease overall yields and re-work. Our calculations of manufacturing costs factor counts and more qualitative complexities in the design. The cost of manufacturing is also, to some extent, decreased in this case because of assumed labor rate applied for China.

Note that manual labor has a much smaller effect on auto-insertion assembly lines (for the Main PCB, for example), where manufacturing costs are much more capital equipment intensive and driven by these investment costs.

Design Notes

Here is a summary of the major components used in the LG W1934S monitor design:

Display Module

  • TFT Display Panel - Innolux Display Corp - MT190AW02

Power Supply Module

  • 36W Power Supply Module - unknown manufacturer

LCD Controller PCB

  • LCD Display Controller IC - MStar Semiconductor - TSUM16AL-LF-1

LG W1934S-BN 19 inch LCD Monitor - Box ContentsLG W1934S-BN 19 inch LCD Monitor - Box Contents

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