QLED TV is a new television technology that is taking many of its cues from OLED TV technology. It consists of extremely small light-emitting crystals called quantum dots. Most TVs today including all of those made by companies and just about every other TV brand are based on decades-old LCD, or liquid crystal display, technology. In the past few years’ Better technology and more advanced manuf...

The OLED self luminous display device features high brightness, high contrast, a wide field of vision with a rapid response and is compact as well as light-weight. At the present time the device is implemented in sub-main displays for mobile phones along with other mobile devices, such as portable audio systems, as well as small to medium size displays for automotive components, including car a...

An optically efficient structure was proposed and fabricated to realize high brightness organic light emitting diode (OLED) displays based on a white OLED prepared with the air-gapped bridges on the quantum dot (QD) patterns. Compared with a conventional white OLED display, in our experiments, the optical intensity of the proposed OLED display shows the enhancement of 58.2% in the red color and...

This paper presents the electrical and thermal analysis of an OLED module. The OLED module consists of the OLED element and the DC-DC converter incorporated in its backplane. The DC-DC converter is realized as an integrated circuit and uses an external inductor. The inductor is embedded in the substrate of the backplane and has a spiral geometry. The DC-DC converter is highly efficient, but a f...

The objective is to fabricate organic light emitting diode and to study its degradation process in atmosphere condition in which PFO as an emitting material and PEDOT:PSS as a hole injecting material were used on ITO substrate. Thus degradation process of the OLED was studied upon its current-voltage characteristic. By fabricating this OLED and obtaining blue light and analysis of current-volta...

Organic light emitting diode (OLED) technology uses substances that emit red, green, blue or white light. An OLED panel consists of stacks of several thin layers of different materials, as such it is not easy to inspect the common OLED defects. In this paper, an autooptical inspection (AOI) system which can detect such defects effectively and robustly was proposed and developed. The proposed sy...

In this letter, we propose new driving methods for designing a driver independent of the current property of Organic Light Emitting Diodes (OLED) displays. The proposed methods are the Look-Up Table (LUT) and the Pulse Width Modulation (PWM). The LUT is used to handle the amount of the current for driving the OLED display panel and the PWM is applied to represent the gray scale on the OLED disp...

This paper presents an inexpensive and effective temperature-controlled chamber for temperature environment tests of Organic Light Emitting Diode (OLED) panels. The proposed chamber is a compact warmer and cooler with an exact temperature control system. In the temperature-controlled space of the chamber, thermoelectric modules (TEMs) are utilized to cool or to heat OLED panels, novel fixtures ...

In this paper, we present and analyse the optical characteristics, such as spectral shift, CIE coordinates, viewing angle dependence, luminous current efficiency and luminous power efficiency, of an organic light-emitting device (OLED) with a commercial diffuser film or a brightness-enhancement film (BEF) attached. Compared to a planar green OLED, the luminous current efficiencies of the OLED w...

A pixel design for active matrix organic light emitting diode (AM-OLED) displays employing hydrogenated amorphous silicon (a-Si:H) thin film transistors (TFTs) is proposed. The proposed pixel circuit, which composed of five TFTs and one capacitor, could compensate the shift of threshold voltage of OLED as well as the threshold voltage of a-Si:H. We fabricated the pixel circuits on the glass sub...