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This paper aims to design the circuit for electromagnetic interface (EMI) reduction in liquid crystal display (LCD).

The cascode level shifter and segmented driver circuit are applied in LCD column driver integrated circuit (IC) for EMI reduction. Cascode current mirror is used in the proposed level shifter for DC voltage biasing and reduction of the driving current which passes through the level shifter. The on-off switching currents and transient times are measured and compared between the conventional and proposed level shifters. Additionally, a segmented data latch is obtained by the timing spread solution in data latch, and applied to split the large peak switching current into a number of smaller peak current. The timing spread-operation does not actually reduce the total power of the noise, instead, it spreads the noise power evenly over the frequency bandwidth. The optimal number of latch is dependent on the operating frequency and EMI allowance. The column driver IC and clock controller are integrated in 0.18 μm CMOS technology with 1-poly and 4-metal process.

The post-layout simulation shows that the proposed column driver circuit for LCD driver IC significantly reduces the peak switching current, and it results in the reduction of EMI noise level by more than 15 dB. It is obtained with 20 segmented operations in data latch at 40 MHz frequency.

The advantage of the cascode current source is that it can provide a well-controlled bias current with an accurate current transfer ratio. To reduce the EMI noise in LCD driver circuit, the cascode current source is properly located for the DC bias block in the level shifter. The application is rarely done by others, and a significant EMI noise reduction is found. The well-controlled current source provides a high performance switching in the level shifter.

The purpose of this paper is to examine the push and pull factors associated with the consumption of Chinese Table Tennis Super League (CTTSL) game events by online audiences and on-site attendants.

Conducting a comprehensive review of literature and a test of content validity, a questionnaire was formulated to assess push and pull motives, event consumption, and sociodemographic variables. A total of 433 CTTSL event consumers, including 225 respondents who primarily followed CTTSL game events via television and webcasting and 208 respondents who primarily consumed the events by attending live game events.

Structural equation modeling analyses revealed that for online consumers, two push factors, self-esteem and drama excitement, were found to be positively related to the event consumption factors; whereas, social interaction and sport performance factors were found to be negatively predictive of event consumption factors. For on-site consumers, none of the push and pull factors were found to be related to the consumption factors.

These results indicate that unlike research findings derived in other research settings mainly conducted in Western countries, push and pull factors are more functional for online CTTSL consumers who are of comparatively stronger fandom level, which are likely affected by CTTSL’s contemporary operations.

Enriching the dual process theory through examining its applicability in studying sport consumer behavior, from both perspectives of internal and external motivations; applying theories and research findings of internal and external motivations that have primarily been derived in Western countries into a professional sport setting in China; identifying unique and diverse perspectives of professional table tennis consumers in China between online and on-site consumers; contrary to the findings derived in Western countries, the motivational factors are more functional for online CTTSL consumers who are of comparatively stronger fandom level, which are likely affected by CTTSL’s contemporary operations; and conducting micro-perspective analyses to study Chinese sport consumer behaviors, which has rarely been done in contemporary scholarly inquiries in China.