- Written by Adrian Wittenberg
- Published on 17 November 2011
The Sharp LC-60LE835U 60” LED LCD 3D HDTV On the Bench
Testing was done with a Sencore Mediapro 500 signal Generator, Sencore Colorpro V colorimeter, Calman’s Spectracal V 4.3 calibration software, and video processing was evaluated with the Spears and Munsil disc output in Source Direct mode from an Oppo BDP 83.
There are only five different gamma choices available in the user menu. The default gamma found in Standard mode produces images that are brighter than reference 2.2 gamma in their midtones as can be seen in the chart.
Since gamma correction can interplay with the CMS system as well I chose the default gamma setting under movie mode which is much closer to a 2.2 reference point.
As can be seen in the chart, the panel is extending the color gamut quite a bit in the standard mode and matches up to Sharp’s claim of creating a wider color gamut. Cyan and Magenta are far too bluish in their hue balance.
Using the CMS system gave the capability of dialing in the colors to the Rec. 709 standard with dE76 being less than 3% in primary and secondary colors.
The color temperature found in Dynamic and Standard picture modes is very cold or bluish.
Here are white balance results without the use of the CMS system but with the color gamut set to standard in movie mode. Red low gains were set to the maximum settings and reds were still measuring low in lower IRE outputs.
Here are white balance results for movie mode with the customized color gamut. As can be seen in the chart the upper and lower end of the output was a little colder of a color temperature than is reference, however with more time spent with both color temperature and cms controls, better results might be possible.
A test was done to evaluate 3D performance which involved using a checkerboard pattern that was displayed in side by side and top bottom 2D to 3D modes to evaluate how much bleed there was in each eye’s image. Images were free from crosstalk on the sides and top but there was a very small amount of bleed of left to right eye image on the bottom of the squares that was probably one or two pixels tall.
Video processing was tested with the Spears and Munsil Blu-ray disc output source direct from an Oppo BDP-83. The Sharp LC-60LE835U had excellent video processing performance. When the film mode is set to either Standard, or Advanced (High,Low) the display could lock onto and display most cadences including 2:2 and 3:2 without losing detail or producing artifacting in every resolution including 1080i. When film mode is set to Advanced High it appears that there is some frame interpolation effects and the media looks overly smooth. Displaying diagonal content such as that found in a hockey game was free from major jaggies however diagonal filtering was not exceptional on this display with the Quad Pixel Plus feature turned either on or off. When in Dot by Dot mode, a full 1920x1080 screen is shown with no clipped pixels, however the default “Stretch” mode clips about 30 pixels from every side which is helpful for hiding the squiggly lined, white data strip found on the top of the screen of some standard definition content and commercials found in cable and satellite broadcasts.
In addition, the LC-60LE835U had no issues displaying RGB Video, RGB PC, 4:4:4, or 4:2:2 color modes and detail in luma and chroma was excellent in every mode.