New Standard
According to industry sources on October, the International Committee for Display Metrology (ICDM) will hold a general meeting next February and set new standards based on the display resolution measurement method proposed by Korean companies such as Samsung Electronics and LG Electronics.
The ICDM is a group that sets standards on displays. LG Electronics held a general meeting in Korea last month. At that time, participants gathered various methods including those by Samsung Electronics and LG Electronics. They are planning to establish detailed direction of ICDM 2.0, which is a new measurement standard at next year's general meeting. This means that there will be a change in an old resolution standard that have been applied since the late 1990s.
The current TV image quality measurement method was made based on the Braun tube standard set 20 years ago. The standard was first made in the monochrome era and is not compatible with the popularized flat screen TV. In particular, the current standard does not mix well with next generation TVs including organic light emitting diodes (OLED) and quantum dot models and the latest technologies such as high dynamic range (HDR) technology. In the industry, companies’ different horizontal and vertical pixel and 4K standards have triggered strong demand for a change in the old image quality measurement standard.
At last general meeting, Samsung Electronics additionally proposed an objective method of evaluating black and white pixels. This is a measurement method called structural SIMiIarity (SSIM). This method evaluates accuracy and similarity compared with an original image unlike the current method of transmitting only image quality information between image and display.
The new measurement method is also suitable for measuring a 4K UHD display resolution. The existing 4K UHD is based on only 3840 × 2160 pixels but SSIM can objectively measure display colors more precisely besides the number of pixels.