A study on the effect of the vertical sound field control of the flat panel display speaker on audience

Abstract

Technological improvement in the display industry, the organic light-emitting diode(OLED) panel manufacturer changed the quality of picture and sound improvement. In previous research, we introduced the technology that uses the display panel as a speaker and also to improve the sound quality by improving the vibration characteristics and horizontal acoustic characteristics of an OLED panel. In this study, we analyzed the characteristics of the vertical direction sound of the TV and to consider auditory sense at various distances. When watching TV, unlike normal viewers, the infant and child viewers are too close to the screen. Acoustic transmission using conventional TV allows the reflected sound to propagate from downward. So, near the TV and in a low position, a loud sound is formed. This causes hearing damage at close range and low clarity at long range. The exciter speakers can basically eliminate these disadvantages of the sound field. And, by adaptive control of the sound, it is possible to transmit a clear sound in a wide space by reducing loss due to the distance. This paper introduces the results of the study on the improvement of sound quality through control algorithm and the protection of hearing audiences through sound field analysis.Technological improvement in the display industry, the organic light-emitting diode(OLED) panel manufacturer changed the quality of picture and sound improvement. In previous research, we introduced the technology that uses the display panel as a speaker and also to improve the sound quality by improving the vibration characteristics and horizontal acoustic characteristics of an OLED panel. In this study, we analyzed the characteristics of the vertical direction sound of the TV and to consider auditory sense at various distances. When watching TV, unlike normal viewers, the infant and child viewers are too close to the screen. Acoustic transmission using conventional TV allows the reflected sound to propagate from downward. So, near the TV and in a low position, a loud sound is formed. This causes hearing damage at close range and low clarity at long range. The exciter speakers can basically eliminate these disadvantages of the sound field. And, by adaptive control of the sound, it is possible to transmit...