Abstract:
A noise preventing film and a liquid crystal display device having the same are provided to prevent noise generated in a common voltage supply unit by forming an extended part extended to cover the common voltage supply unit, at a polarizing plate. A noise preventing film(1) is composed of: a base layer(10); a conductive layer(20) laminated on the base layer; a noise preventing layer(30); and noise preventing particles(40) dispersed in the noise preventing layer. The noise preventing particle is conductive particle(42) or metal particle. The metal particle is nickel particle or alloy particle of nickel and gold. The conductive particle is carbon fiber. The noise preventing particle is bubbles(44) filled with low-density gas. The density of low-density gas is lower than the density of the air.
Abstract:
Die Erfindung betrifft eine Pockelszelle, die einen ersten Kristall umfasst, der einen Pockels-Effekt zeigt. Es wird die Verwendung eines thermisch ausdehnungsangepassten zweiten Kristalls zur Veränderung der akustischen Resonanzfrequenzen des ersten Kristalls beschrieben. Dadurch kann ein piezoelektrisches Klingeln vermindert werden.
Abstract:
A subassembly (10) for a display device includes a display component (12) having an outer display surface (14) and an opposite inner surface (16); a compressible pressure pad (20) including a plurality of nonwoven fibers having an average diameter of 100 micrometers or less, disposed on the inner surface (16) of the display component (12); and an internal component (22) disposed on a side of the compressible pressure pad (20) on a side opposite the display component (12). Methods for reducing ripple effect and improving impact absorption in a display device are also described.
Abstract:
Disclosed herein are a plurality of displays for an electronic device including a display layer, a light guide layer, and a damping material layer coupled between the light guide layer and the display layer. The display layer in one embodiment is a liquid crystal display layer, but other types of display layers may be used. The light guide layer may serve as a back light for the display layer, and may be between approximately 0.05 mm and 2 mm in thickness. Devices described herein include at least one interposed layer of acoustic and/or mechanical energy absorbing material, also referred to herein as damping material, between the display layer susceptible to vibration, and a hard layer near the display layer. The damping material as described herein may reduce the audio noise. The energy absorbing layer may take the form of an audio energy absorbing sheet interposed between layers of the display.
Abstract:
An optical modulator includes a crystal structure that exhibits polaritonic or excitonic behavior. A shock wave propagates through the crystal structure so as to corehently generate, convert or modulate electomagnetic radiation from the terahertz to the x-ray ranges.
Abstract:
Disclosed herein are a plurality of displays for an electronic device including a display layer (102, 104), a light guide layer (108), and a damping material layer (110) coupled between the light guide layer and the display layer. The display layer in one embodiment is a liquid crystal display layer, but other types of display layers may be used. The light guide layer may serve as a back light for the display layer, and may be between approximately 0.05 mm and 2 mm in thickness. Devices described herein include at least one interposed layer of acoustic and/or mechanical energy absorbing material, also referred to herein as damping material, between the display layer susceptible to vibration, and a hard layer near the display layer. The damping material as described herein may reduce the audio noise. The energy absorbing layer may take the form of an audio energy absorbing sheet interposed between layers of the display.
Abstract:
A backlight unit is provided to enable ribs contacting a protruded common electrode to absorb vibration generated in first and second lower structures and the common electrode in applying power for the control of dimming, thereby reducing humming noise. A backlight unit comprises plural light emitting lamps(51), first and second lower structures(54a), a sound absorbing pad(62), a common electrode(53), and first and second upper structures(55a). The plural light emitting lamps are disposed at regular intervals in the upper part of a cover bottom. The first and second lower structures have grooves(61) in areas corresponding to between the light emitting lamps and are formed in a direction in both ends of the light emitting lamps. The sound absorbing pad is formed in the upper part of the first and second lower structures with the grooves. The common electrode is formed in a direction in the upper part of the first and second lower structures with the sound absorbing pad. The first and second upper structures have plural ribs(56) in an upper part corresponding to the grooves of the first and second lower structures and are formed in a direction.
Abstract:
A back light driving circuit of an LCD(Liquid Crystal Display) panel is provided to apply a soft start mode, thereby generating no noise by preventing inrush current from being generated in a coil of a converter circuit when initial power is applied. A signal generator(1) is turned on/off by an on/off signal of an input terminal, and generates a high frequency pulse type gate signal whose pulse width increases according to a level of inputted output current. A voltage boosting circuit(2) is for boosting voltage by the connection to an output terminal of the signal generator. A load unit(3) is connected to the voltage boosting unit and loads boosted voltage. A feedback block(4) senses an output current level by the connection to an output terminal of an LED(Light Emitting Diode) of the load unit and supplies power having the output current level to a PWM IC(Pulse Width Modulation Integrated Circuit). A converter(5) is serially connected to the feedback block and converts the output current level into a voltage level. An output current level recognizing terminal of the signal generator is connected to the converter. A noise reducing unit(10) is coupled between the input terminal of the signal generator and the converter.