Log in

Relevant bibliographies by topics / RGB LED / Journal articles

To see the other types of publications on this topic, follow the link: RGB LED.

Journal articles on the topic 'RGB LED'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'RGB LED.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Hung, Chih Ching, Chi Chang Hsieh, Yan Huei Li, and Chyun Chau Lin. "LED Color Mixing Mechanism Design." Applied Mechanics and Materials 284-287 (January 2013): 2894–98. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.2894.

Full text

Abstract:

LED is the solid-state light source of the 21st century that ranges from white light to any color in the entire spectrum. LED lights create static or dynamic illumination in indoor lighting applications. Modern indoor lighting fixtures not only provide illumination, but also are the primary elements that create the atmosphere. The use of gradual mixing of lights or different colors not only makes lights fit more people’s physical and psychological needs, but also improve one’s aesthetic perspectives. However, the LED color mixing technique based on RGB colors requires the package of the RGB chips in on single space for the creation of color mixing through the control of voltage and current. An innovative color mixing technique was proposed in this study. A linkage mechanism was introduced. The individual RGB chips were installed in 3 sets of four-bar linkages to enable color mixing by driving the RGB chips with the crank of the mechanism. The color mixing effects provide a continuing change of colors to meet people’s requirements for color mixing fixtures in certain scenarios. The fixtures incorporating this design can be used for stage lighting and biomedical engineering testing.

APA, Harvard, Vancouver, ISO, and other styles

2

Hsiang, En-Lin, Ziqian He, Yuge Huang, Fangwang Gou, Yi-Fen Lan, and Shin-Tson Wu. "Improving the Power Efficiency of Micro-LED Displays with Optimized LED Chip Sizes." Crystals 10, no. 6 (June 8, 2020): 494. http://dx.doi.org/10.3390/cryst10060494.

Full text

Abstract:

Micro-LED (light-emitting diode) is a potentially disruptive display technology, while power consumption is a critical issue for all display devices. In this paper, we develop a physical model to evaluate the power consumption of micro-LED displays under different ambient lighting conditions. Both power efficiency and ambient reflectance are investigated in two types of full color display structures: red/green/blue (RGB) micro-LEDs, and blue-LED pumped quantum dots color-conversion. For each type of display with uniform RGB chip size, our simulation results indicate that there exists an optimal LED chip size, which leads to 30–40% power saving. We then extend our model to analyze different RGB chip sizes, and find that with optimized chip sizes an additional 12% average power saving can be achieved over that with uniform chip size.

APA, Harvard, Vancouver, ISO, and other styles

3

Choi, Seo Young, Du Sik Park, Chang Yeong Kim, Janos Schanda, Balazs Kranicz, and Peter Csuti. "54.1: Color Prediction in an LCD using RGB-LED Backlights." SID Symposium Digest of Technical Papers 43, no. 1 (June 2012): 721–24. http://dx.doi.org/10.1002/j.2168-0159.2012.tb05885.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Wen, Senfar. "P-34: Color Gamut and Power Consumption of a RGBW LCD Using RGB LED Backlight." SID Symposium Digest of Technical Papers 40, no. 1 (2009): 1216. http://dx.doi.org/10.1889/1.3256510.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Haverinen, Hanna M., Risto A. Myllyla, and Ghassan E. Jabbour. "Inkjet Printed RGB Quantum Dot-Hybrid LED." Journal of Display Technology 6, no. 3 (March 2010): 87–89. http://dx.doi.org/10.1109/jdt.2009.2039019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

T. N. Ghorude, T. N. Ghorude, and A. D. Shaligram A. D. Shaligram. "Microcontroller Driven RGB Led System For Tristimulus Surface Colorimetry." Indian Journal of Applied Research 1, no. 5 (October 1, 2011): 81–83. http://dx.doi.org/10.15373/2249555x/feb2012/30.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Galal, Mariam, Wai Pang Ng, Richard Binns, and Ahmed Abd El Aziz. "Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link." Sensors 20, no. 20 (October 10, 2020): 5754. http://dx.doi.org/10.3390/s20205754.

Full text

Abstract:

This paper proposes a low-complexity and energy-efficient light emitting diode (LED)-to-LED communication system for Internet of Things (IoT) devices with data rates up to 200 kbps over an error-free transmission distance up to 7 cm. The system is based on off-the-shelf red-green-blue (RGB) LEDs, of which the red sub-LED is employed as photodetector in photovoltaic mode while the green sub-LED is the transmitter. The LED photodetector is characterized in the terms of its noise characteristics and its response to the light intensity. The system performance is then analysed in terms of bandwidth, bit error rate (BER) and the signal to noise ratio (SNR). A matched filter is proposed, which optimises the performance and increases the error-free distance.

APA, Harvard, Vancouver, ISO, and other styles

8

Chen, Wei, Lang Wang, Lian Qiao Yang, and Jian Hua Zhang. "Design of High Power RGB White Light Emitting Diodes." Applied Mechanics and Materials 423-426 (September 2013): 2645–50. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.2645.

Full text

Abstract:

In this paper, thermal performance of RGB white LED packages was optimized by thermal simulation using the Finite Volume method. A Monte Carlo photon simulation method was utilized for the analysis of optical performance of LED in quantitative terms. It was found that the distribution of RGB chips has great effect both on the thermal and optical performance of the RGB white LEDs. The tilted angle, material of the reflection cup, and the shape of encapsulant were found to be the key factors which determine the extraction efficiency of LED package. It is demonstrated that the combination of optical and thermal simulation provides a comprehensive optimization approach for a design of high efficient RGB white LED package.

APA, Harvard, Vancouver, ISO, and other styles

9

Kwon, Jin Hyuk. "A color‐filterless LCD with RGB LED and lenticular‐lens arrays." Journal of Information Display 11, no. 2 (June 2010): 45–48. http://dx.doi.org/10.1080/15980316.2010.9652118.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Yu-Kang Lo, Kuan-Hung Wu, Kai-Jun Pai, and Huang-Jen Chiu. "Design and Implementation of RGB LED Drivers for LCD Backlight Modules." IEEE Transactions on Industrial Electronics 56, no. 12 (December 2009): 4862–71. http://dx.doi.org/10.1109/tie.2009.2026771.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Fukuda, Yoshinori, Teruichi Watanabe, Takeo Wakimoto, Satoshi Miyaguchi, and Masami Tsuchida. "An organic LED display exhibiting pure RGB colors." Synthetic Metals 111-112 (June 2000): 1–6. http://dx.doi.org/10.1016/s0379-6779(99)00402-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Keuper, Matthijs H., Gerard Harbers, and Steve Paolini. "26.1: RGB LED Illuminator for Pocket-Sized Projectors." SID Symposium Digest of Technical Papers 35, no. 1 (2004): 943. http://dx.doi.org/10.1889/1.1821415.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Parnklang, Jirawath, Lalita Phikunthong, Rawisara Jantri, and Pichkanit Sukpasri. "Multi Frequency on RGB Lighting LED Driver Technique." IOP Conference Series: Materials Science and Engineering 895 (July 31, 2020): 012010. http://dx.doi.org/10.1088/1757-899x/895/1/012010.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Ma, Ruiqing, Ningfang Liao, Pengfei Yan, and Keizo Shinomori. "Categorical color constancy under RGB-LED light sources." Color Research & Application 43, no. 5 (July 2, 2018): 655–74. http://dx.doi.org/10.1002/col.22241.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Xu Xiao, 许笑, 陈名松 Chen Mingsong, and 汤玲利 Tang Lingli. "Experimental Study Based On RGB LED Visible Light Communication." Laser & Optoelectronics Progress 52, no. 10 (2015): 100601. http://dx.doi.org/10.3788/lop52.100601.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Konno, A., Y. Yamamoto, and T. Inuzuka. "40.2: RGB Color Control System for LED Backlights in IPS-LCD TVs." SID Symposium Digest of Technical Papers 36, no. 1 (2005): 1380. http://dx.doi.org/10.1889/1.2036264.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Wang, Chong. "RGB Primary Color LED Backlight System Based on MCU." Advanced Materials Research 779-780 (September 2013): 1719–22. http://dx.doi.org/10.4028/www.scientific.net/amr.779-780.1719.

Full text

Abstract:

A solution was proposed for the purpose of backlight. According to the principle of three primary color£¬A kind of RGB led backlight was designed with ncp6223 chip dedicated to the RGB illumination or backlight LCD display when ncp5623 was controlled by MCU. The realization of I2C bus which was used to control ncp5623 was taken the measure of direct driving of ncp5623 Using two arbitrary general-purpose IO pin of MCU. In respect of communication protocol, the software simulation was taken. Moreover only minimum system was needed for MCU. This method mentioned above simplified design and cut the cost because of absence of master I2C controller. In respect of software design, every template which realized a function of ncp5623 in the manner of software simulation of I2c protocol was given. In another word, a general method was given. From these templates, a lot of design such as Gradual intensity Dimming, RGB function and so on can be realized. This has a great signification for teaching and practice.

APA, Harvard, Vancouver, ISO, and other styles

18

Sim, Yun-Ju, In-Tae Kim, and An-Seop Choi. "The Subjective Evaluation on White Light Property and Color Appearance of Single Chip LED and RGB Multi Chip LED." Journal of the Korean Institute of Illuminating and Electrical Installation Engineers 29, no. 1 (January 31, 2015): 1–8. http://dx.doi.org/10.5207/jieie.2015.29.1.001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Sigit, Sigit priosembodo, Henky Irawan, and Wiwin Kusuma Atmaja Putra. "MANIPULASI WARNA CAHAYA LED YANG BERBEDA TERHADAP PERUBAHAN WARNA MERAH IKAN SUMATRA Puntius tetrazona." Intek Akuakultur 4, no. 1 (September 10, 2020): 74–83. http://dx.doi.org/10.31629/intek.v4i1.2031.

Full text

Abstract:

Penelitian ini dilakukan dengan menggunakan rancangan acak lengkap dengan 5 perlakuan dan 3 ulangan. Pencahayaan yang digunakan adalah control (cahaya alami), B (LED putih), C (LED merah), D (LED hijau) dan E (LED biru). Hasil penelitian yang terbaik terdapat pada perlakuan C dengan pemberian pencahayaan menggunakan lampu LED merah dengan nilai RGB perminggu pada kepala merah (21,78), badan merah (24,89) dan ekor merah 23. Parameter nilai RGB warna merah perperlakuan pada bagian kepala, badan dan ekor ikan sumatra nilai terbaik terdapat pada perlakuan C dengan nilai sebesar kepala (21,78), badan (24,89) dan ekor (23).

APA, Harvard, Vancouver, ISO, and other styles

20

Peng, Chenhui, Xiaoning Li, Pu Zhang, Lingling Xiong, and Xingsheng Liu. "RGB High Brightness LED Modules for Projection Display Application." Journal of Display Technology 7, no. 8 (August 2011): 448–53. http://dx.doi.org/10.1109/jdt.2011.2132693.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Ohmae, Hideki, Susumu Sawada, Kazuo Matsukawa, and Yoshihiro Tmoita. "Stretchable RGB LED Display with Spiral-Shaped Wiring Technology." Journal of The Institute of Image Information and Television Engineers 72, no. 10 (2018): J126—J130. http://dx.doi.org/10.3169/itej.72.j126.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Luo, Pengfei, Min Zhang, Zabih Ghassemlooy, Hoa Le Minh, Hsin-Mu Tsai, Xuan Tang, Lih Chieh Png, and Dahai Han. "Experimental Demonstration of RGB LED-Based Optical Camera Communications." IEEE Photonics Journal 7, no. 5 (October 2015): 1–12. http://dx.doi.org/10.1109/jphot.2015.2486680.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Olivka, Petr, Josef Hrabal, David Seidl, Pavel Moravec, and Michal Krumnikl. "Microcontroller Peripheral Mapping Used to Control RGB LED Panel." IFAC-PapersOnLine 48, no. 4 (2015): 436–41. http://dx.doi.org/10.1016/j.ifacol.2015.07.074.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Jung, Hyunwoo, and Sung-Man Kim. "Experimental Demonstration of 3 × 3 MIMO LED-to-LED Communication Using RGB Colors." Sensors 21, no. 14 (July 20, 2021): 4921. http://dx.doi.org/10.3390/s21144921.

Full text

Abstract:

Optical wireless communication (OWC) is one of the promising candidates for beyond fifth-generation communication (B5G). Depending on the type of transmitters, receivers, and information carriers applied in the system, OWC can be categorized into visible light communication, light fidelity, free-space optical communication, optical camera communication, etc. In addition to these OWC subcategories, this paper proposes light-emitting diode (LED)-to-LED communication as another subcategory of OWC technique. Furthermore, we show an experimental demonstration of the multiple-input multiple-output (MIMO) LED-to-LED communication system using red, green, and blue colored LEDs. We believe that LED-to-LED communication is an effective solution to resolve the communication burden arising from massive connectivity in B5G internet of things. Along with the measurement results of the transmitter LED, receiver LED, and the channel properties, it is shown that the MIMO LED-to-LED system is able to successfully recover the transmitted signal with low inter-channel interferences due to the receiver LED’s unique characteristics. Finally, the bit error rate (BER) performance of the MIMO LED-to-LED system is shown in comparison with the BER performance of the single-input single-output (SISO) LED-to-LED system. We successfully implemented the 3 × 3 MIMO LED-to-LED communication system using RGB colors at a data rate of 30.62 kbps over a 10 cm transmission distance along with direct current biased optical orthogonal frequency division multiplexing (DCO-OFDM) modulation and zero-forcing (ZF) equalizer.

APA, Harvard, Vancouver, ISO, and other styles

25

Lan Kim and Moo Whan Shin. "Implementation of Side Effects in Thermal Characterization of RGB Full-Color LEDs." IEEE Electron Device Letters 28, no. 7 (July 2007): 578–80. http://dx.doi.org/10.1109/led.2007.899327.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Jeong, Yeong-Cheol, Jo-Cheon Choi, and Dae-Hwan Cho. "An Implementation of the RGB Remote Controller for LED Emotion Lighting of AtoN Facilities." Journal of the Korean Society of Marine Environment and Safety 18, no. 5 (October 31, 2012): 475–80. http://dx.doi.org/10.7837/kosomes.2012.18.5.475.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Wen, Senfar. "Color saturation improvement through the use of unequal‐area color filters for the RGB‐LED‐Backlight RGBW LCD." Journal of Information Display 10, no. 4 (December 2009): 164–70. http://dx.doi.org/10.1080/15980316.2009.9652101.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Brailovsky, Volodymyr, Ivan Pyslar, Margaryta Rozhdestvenska, and Magdalena Michalska. "SPECTRAL SENSITIVITY OF HUMAN VISION TO THE LIGHT PULSES." Informatics Control Measurement in Economy and Environment Protection 8, no. 1 (February 28, 2018): 32–35. http://dx.doi.org/10.5604/01.3001.0010.8641.

Full text

Abstract:

. In the paper we represent experimental results of the research of human vision sensitivity to pulsed radiation of discrete light emitting diodes (LEDs) of different colors when their dissipated electrical power was the same. We used color components of RGB LED matrix and determined the values of the dissipated power at which resultant LED radiation was perceived as white light. These power values were used to investigate sensitivity of human eye to radiation of each color of RGB matrix. Spectral characteristic of RGB LED under investigation was checked for presence of additional spectral components. The results we obtained give the possibility to develop information systems with concealment of the data transfer process using white light which color components are informative.

APA, Harvard, Vancouver, ISO, and other styles

29

Huang, Wei, Jie-Min Li, Li-Mei Yang, Zhong-Liang Jin, Zheng-Gen Zhong, Yu Liu, Qin-Ying Chou, and Feng Li. "Local dimming algorithm and color gamut calibration for RGB LED backlight LCD display." Optics & Laser Technology 43, no. 1 (February 2011): 214–17. http://dx.doi.org/10.1016/j.optlastec.2010.06.016.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Lu, Ruibo, Qi Hong, Zhibing Ge, and Shin-Tson Wu. "Color shift reduction of a multi-domain IPS-LCD using RGB-LED backlight." Optics Express 14, no. 13 (2006): 6243. http://dx.doi.org/10.1364/oe.14.006243.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Yongsheng Wu, Yongsheng Wu, Aiying Yang Aiying Yang, Lihui Feng Lihui Feng, and Yunan Sun Yunan Sun. "Efficient transmission based on RGB LED lamp for indoor visible light communication." Chinese Optics Letters 11, no. 3 (2013): 030601–30603. http://dx.doi.org/10.3788/col201311.030601.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Murai, Takayuki, Kohji Fujiwara, Takeshi Masuda, Yuhsaku Ajichi, and Tomohiko Yamamoto. "67.2: Compensation Methods for Local-Dimming Backlights with RGB-LED." SID Symposium Digest of Technical Papers 41, no. 1 (2010): 1001. http://dx.doi.org/10.1889/1.3499815.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Wang, Hsiang-Chen, Yao-Ting Chiang, Chung-Yi Lin, Ming-Yen Lu, Min Kai Lee, Shih-Wei Feng, and Chie-Tong Kuo. "All-reflective RGB LED flashlight design for effective color mixing." Optics Express 24, no. 5 (February 22, 2016): 4411. http://dx.doi.org/10.1364/oe.24.004411.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Hasan, Jaber, and Simon S. Ang. "A High-Efficiency Digitally Controlled RGB Driver for LED Pixels." IEEE Transactions on Industry Applications 47, no. 6 (November 2011): 2422–29. http://dx.doi.org/10.1109/tia.2011.2168930.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Perduijn, Armand, Sjef de Krijger, John Claessens, Noboru Kaito, Takaaki Yagi, S. T. Hsu, Masayuki Sakakibara, Tsutomu Ito, and Shinsuke Okada. "43.2: Light Output Feedback Solution for RGB LED Backlight Applications." SID Symposium Digest of Technical Papers 34, no. 1 (2003): 1254. http://dx.doi.org/10.1889/1.1832514.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Liu, Chia-Lin, Chi-Fang Huang, Ming-Tsung Ho, Shian-Jun Chiou, Chia-Jin Lin, Chi-Neng Mo, and Wen-Chih Tai. "66.2: High-Speed Driving Circuit Design for RGB-LED Backlight." SID Symposium Digest of Technical Papers 38, no. 1 (May 2007): 1798–801. http://dx.doi.org/10.1889/1.2785683.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Lau, John H., Cheng-Ta Ko, Curry Lin, Tzvy-Jang Tseng, Kai-Ming Yang, Tim Xia, Puru Bruce Lin, et al. "Fan-Out Panel-Level Packaging of Mini-LED RGB Display." IEEE Transactions on Components, Packaging and Manufacturing Technology 11, no. 5 (May 2021): 739–47. http://dx.doi.org/10.1109/tcpmt.2021.3070579.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Lawler, Mark, Deborah Alsina, Richard A. Adams, Annie S. Anderson, Gina Brown, Nicola S. Fearnhead, Stephen W. Fenwick, et al. "Critical research gaps and recommendations to inform research prioritisation for more effective prevention and improved outcomes in colorectal cancer." Gut 67, no. 1 (December 12, 2017): 179–93. http://dx.doi.org/10.1136/gutjnl-2017-315333.

Full text

Abstract:

ObjectiveColorectal cancer (CRC) leads to significant morbidity/mortality worldwide. Defining critical research gaps (RG), their prioritisation and resolution, could improve patient outcomes.DesignRG analysis was conducted by a multidisciplinary panel of patients, clinicians and researchers (n=71). Eight working groups (WG) were constituted: discovery science; risk; prevention; early diagnosis and screening; pathology; curative treatment; stage IV disease; and living with and beyond CRC. A series of discussions led to development of draft papers by each WG, which were evaluated by a 20-strong patient panel. A final list of RGs and research recommendations (RR) was endorsed by all participants.ResultsFifteen critical RGs are summarised below:RG1: Lack of realistic models that recapitulate tumour/tumour micro/macroenvironment;RG2: Insufficient evidence on precise contributions of genetic/environmental/lifestyle factors to CRC risk;RG3: Pressing need for prevention trials;RG4: Lack of integration of different prevention approaches;RG5: Lack of optimal strategies for CRC screening;RG6: Lack of effective triage systems for invasive investigations;RG7: Imprecise pathological assessment of CRC;RG8: Lack of qualified personnel in genomics, data sciences and digital pathology;RG9: Inadequate assessment/communication of risk, benefit and uncertainty of treatment choices;RG10: Need for novel technologies/interventions to improve curative outcomes;RG11: Lack of approaches that recognise molecular interplay between metastasising tumours and their microenvironment;RG12: Lack of reliable biomarkers to guide stage IV treatment;RG13: Need to increase understanding of health related quality of life (HRQOL) and promote residual symptom resolution;RG14: Lack of coordination of CRC research/funding;RG15: Lack of effective communication between relevant stakeholders.ConclusionPrioritising research activity and funding could have a significant impact on reducing CRC disease burden over the next 5 years.

APA, Harvard, Vancouver, ISO, and other styles

39

Song Pengcheng, 宋鹏程, 文尚胜 Wen Shangsheng, 尚俊 Shang Jun, 史晨阳 Shi Chenyang, and 陈颖聪 Chen Yingcong. "A Dimming Method for RGB LED Based on Three Channels′ PWM." Acta Optica Sinica 35, no. 2 (2015): 0223001. http://dx.doi.org/10.3788/aos201535.0223001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Shirai, T., S. Shimizukawa, T. Shiga, S. Mikoshiba, and K. Käläntär. "44.4: RGB-LED Backlights for LCD-TVs with 0D, 1D, and 2D Adaptive Dimming." SID Symposium Digest of Technical Papers 37, no. 1 (2006): 1520. http://dx.doi.org/10.1889/1.2433283.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

YAMADA, Kenichi, and Masaru SUGIMOTO. "Luminous Efficacy Theoretical Calculation of White LED Fabricated by RGB Phosphor and Ultra-Violet LED." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 87, Appendix (2003): 184. http://dx.doi.org/10.2150/jieij1980.87.appendix_184.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Sun, Tai Ping, Jia Hao Li, and Kai Yan Li. "Automatic Spectrum Control System Design and Implementation for RGB Light Emitting Diode." Applied Mechanics and Materials 313-314 (March 2013): 539–43. http://dx.doi.org/10.4028/www.scientific.net/amm.313-314.539.

Full text

Abstract:

This paper designs an automatic spectrum control circuit when the temperature change the LED spectrum can maintain stably. Automatic spectrum control circuit has two control modes, one kind for red LED another kind for green and blue LED. When temperature increases that the LED spectrum are all toward long wavelength shift. When LED current increases, the R-LED spectrum to the long wavelength shift, the GB-LED spectrum to the short wavelength shift, so at R-LED is to reduce the current as the automatic spectrum control circuit and the GB-LED is to increase the current as the automatic spectrum control circuit. It is confirmed that the proposed system provides stable spectrum within a temperature range of 10°C at R-LED and a temperature range of 70°C at GB-LED.

APA, Harvard, Vancouver, ISO, and other styles

43

Grout, Ian A., Muhaned Zaidi, Karel L. Sterckx, and Abu Khari Bin A'ain. "RGB LED Driver Circuit Design for an Optical Fiber Sensor System." ECTI Transactions on Computer and Information Technology (ECTI-CIT) 11, no. 2 (December 11, 2017): 163–77. http://dx.doi.org/10.37936/ecti-cit.2017112.63707.

Full text

Abstract:

In this paper, the design of a programmable mixed-signal electronic circuit to control the light output of a red-green-blue (RGB) light emitting diode (LED) to be used in an optical fiber sensor system is presented and discussed. The LED is to be used as a light transmitter (light source) within the sensor system. The output of each LED color is to be independently controlled using either a d.c. current or a pulse width modulation (PWM) encoded current. The idea for, and architecture of, the mixed-signal electronic circuit design is considered as both a discrete implementation using off-the-shelf components and the concept for an application specific integrated circuit (ASIC) solution using a 0.35 µm complementary metal oxide semiconductor (CMOS) fabrication process. In this paper, the design operation principles, circuit architecture, simulation results and hardware requirements for this LED driver circuit are considered.

APA, Harvard, Vancouver, ISO, and other styles

44

SHIH, Ming-Hsien, and Chia-Ling WEI. "Design of a Boost DC-DC Converter for RGB LED Driver." IEICE Transactions on Electronics E97.C, no. 6 (2014): 619–23. http://dx.doi.org/10.1587/transele.e97.c.619.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Cossu, G., A. M. Khalid, P. Choudhury, R. Corsini, and E. Ciaramella. "34 Gbit/s visible optical wireless transmission based on RGB LED." Optics Express 20, no. 26 (December 4, 2012): B501. http://dx.doi.org/10.1364/oe.20.00b501.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Chandra, Franky, Aries Wahyudianto, and M. Yasin. "Design of vein finder with multi tuning wavelength using RGB LED." Journal of Physics: Conference Series 853 (May 2017): 012019. http://dx.doi.org/10.1088/1742-6596/853/1/012019.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Ohmae, Hideki, Yoshihiro Tomita, Mitsuhiro Kasahara, Jeroen Schram, Edsger Smits, Jeroen van den Brand, Frederick Bossuyt, Jan Vanfleteren, and Johan De Baets. "9.4: Stretchable 45 × 80 RGB LED Display Using Meander Wiring Technology." SID Symposium Digest of Technical Papers 46, no. 1 (June 2015): 102–5. http://dx.doi.org/10.1002/sdtp.10298.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Sari, Mona Berlian, Yogie Sanjaya, and Mitra Djamal. "Pengembangan Spektrometer Cahaya Tampak Menggunakan LED RGB untuk Menentukan Konsentrasi Glukosa." Risalah Fisika 1, no. 1 (January 28, 2017): 21–27. http://dx.doi.org/10.35895/rf.v1i1.40.

Full text

Abstract:

Rancang bangun spektrometer menggunakan sumber cahaya dari cahaya tampak telah dibuat. Pada penelitian ini diukur nilai absorbansi, transmitansi, dan konsentrasi larutan glukosa. Spektrometer menggunakan satu sensor photodioda, dua LED RGB sebagai sumber cahayanya dan dua sampel holder. Pergerakan sensor dikontrol menggunakan motor stepper. Keluaran sensor diolah di mikrokontroller ATMega 8 dan dikirim ke PC. Interface tampilan PC menggunakan GUI Visual Basic. Untuk mengetahui kadar glukosa dalam larutan tertentu digunakan larutan benedict. Keunggulan sistem terletak pada otomatisasi gerak sensor sehingga pada satu kali pengukuran dapat langsung dibandingkan larutan standar dan larutan yang diukur agar pengukuran lebih efisien. Secara keseluruhan sistem menggunakan komponen dengan harga yang murah. Berdasarkan data hasil pengukuran, absortivitas tertinggi diperoleh jika sumber yang digunakan adalah led hijau yaitu dengan kisaran 0.47-0.9. Persentasi kesalahan pengukuran konsentrasi menggunakan led hijau berkisar antara 1.94% sampai 4.76% sedangkan secara keseluruhan persentasi kesalahan relatif pengukuran berkisar antara 0.12% sampai 5.43%.

APA, Harvard, Vancouver, ISO, and other styles

49

Kim, Yoon-Jeong, Thi Kim Loan Nguyen, and Myung-Min Oh. "Growth and Ginsenosides Content of Ginseng Sprouts According to LED-Based Light Quality Changes." Agronomy 10, no. 12 (December 16, 2020): 1979. http://dx.doi.org/10.3390/agronomy10121979.

Full text

Abstract:

This study investigated growth and ginsenosides content of ginseng sprouts under various light spectra. One-year-old ginseng seedlings were cultivated under various light treatments including: monochromatic (red (R), green (G), and blue (B)), various RB and RGB combinations, white (fluorescent lamps (FL) and natural white (NW)), and supplemental far red (FR). R and high R ratio increased growth characteristics of ginseng sprouts (excepted for root dry weight). The replacement of G for B in RGB group and W group did not increase the growth, and supplemental FR increased shoot and root fresh weights, total fresh weight, and leaf area. R had 1.5 times higher photosynthetic rate compared to B and G, and R8G1B1 and R9G1B0 showed the highest values in RGB group; whereas the RB, W, and FR groups did not enhance photosynthetic rate. B and high B ratio increased shoot saponin and ginsenosides, total saponin and ginsenosides contents. Total saponin content in shoot was 4.4 times higher than that in root. The supplemental FR enhanced both total saponin and ginsenosides contents. In conclusion, NW + FR showed the highest total fresh weight, saponin and ginsenosides contents among all treatments, suggesting that supplementation of FR has a positive effect on ginseng sprouts grown in plant factories.

APA, Harvard, Vancouver, ISO, and other styles

50

Chang, Chien Hsuan, Hung Liang Cheng, Chun An Cheng, and En Chih Chang. "Analysis and Design of the Active Clamp Forward Converter as a Color LED Driver." Applied Mechanics and Materials 284-287 (January 2013): 2472–76. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.2472.

Full text

Abstract:

Light emitting diodes (LEDs) have substituted for incandescent bulbs and fluorescent lamps gradually in the residential, industrial and commercial lighting applications. This paper proposes an active clamp forward converter with the sequential color display (SCD) control to drive red, green and blue (RGB) LED arrays. Both of the main switch and the auxiliary switch can turn on under zero voltage switching (ZVS), resulting in high system efficiency. RGB LED arrays are sequentially driven by the same converter, which can save components and reduce cost significantly. Besides, the pulse-width modulation (PWM) control is applied to achieve a large chromaticity variation. The operation principles of the proposed LED driver are addressed. Experimental results of a 100W laboratory prototype are used to verify the feasibility and validity of the theoretical predictions.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!