LCD TV panels enjoyed unexpected growth in the first half of 2014, tied to enthusiastic TV viewing because of the World Cup and other factors that benefited the market, according to IHS.

Global LCD TV panel shipments during the first six months of 2014 rose 3% from the same period a year ago. Although growth in 2014 was much less than the 9% expansion logged during the first six months of 2013, achieving any increase at all was unforeseen.

"What a surprising result this was, as the TV industry doubted that shipments could increase during this time," said Ricky Park, director for large displays at IHS. "It was unclear whether any growth would occur because of signs earlier in the year that appeared to be discouraging. However, the market has righted itself, to everyone's delight."

Among the variables fueling the market was the World Cup. Starting in June, the world's premiere soccer event drove up demand for televisions, especially in Europe and South America.

Sports extravaganzas long have been reliable drivers of TV sales, and by extension, the LCD TV panels that make up the sets. And for events of global interest like the World Cup or the Olympics, staged once every four years, keen anticipation usually helps propel the market upward.

Still, the athletics spectacle alone was no guarantee of growth. But other factors also kicked in, helping create an overall favorable environment for the global LCD TV trade in the first half. These included signs of a continuing economic recovery in North America, one of the world's two largest markets for LCD TVs alongside China; a subsidy program initiated by the government in Mexico for its citizens to buy new LCD TVs; and the continued phasing out of bulky, tube-type analog TVs, now obsolete in many areas of the world.

IHS added that despite the stronger-than-expected demand for the January to June period, a drop in yields and a loss in capacity due to production line modifications caused a shortage of supply of LCD TVs. The effects were felt especially in the Ultra HD TV segment of the industry.

Issues related to quality have cropped up, for instance, in the production of so-called PenTile RGBW Ultra HD panels, which are aimed at the 40-inch segment of the Ultra HD space. A Samsung-patented technology, PenTile panels add a subpixel with no color filtering material that allows the backlight through, resulting in white (W) being added to the traditional red, green and blue (RGB) subpixels. The technology makes brighter images possible with the same amount of power used for RGB.

The production headache is becoming a problem, Park added, because the price of PenTile RGBW UHD TVs was supposed to be coming down in order to better compete with non-Ultra HD sets. With four times the resolution of 1080p sets, UHD TVs are also priced far higher than conventional HD TV models, said IHS.

Also facing trouble was the production method known as multi-model on a glass (MMG). Low production efficiencies resulted in reduced capacity for MMG, especially in the advanced production lines for 8G fabs.

On top of those problems, a growing share of the manufacturing base that once had enjoyed maximized glass efficiency-lines producing TV panels in sizes of 39.5-, 42.5-, 48- and 48.5-inch-experienced deteriorating yields.

Production issues of a different nature are likely to occur in the second half, IHS believes, extending current manufacturing woes. A substantial loss in production capacity is expected during the remainder of the year because panel makers in China and Taiwan are slated to use different electrode materials from those currently deployed, ostensibly to improve their Ultra HD products. The makers affected include AU Optronics (AUO), Innolux and BOE Optoelectronics.

IHS added that Samsung Display will reduce the thickness of its front-pane glass to 0.5mm as the company increases the production of curved TVs. LG Display, meanwhile, reportedly is converting part of an 8G line to oxide thin-film transistor technology in order to produce OLED panels.

All the same, TV prices are not expected to dip in the months to come in spite of the ongoing production problems, which will serve to constrict the supply of LCD TVs, added IHS.