Abstract: There is disclosed a multilayer optical sheet module including an upper optical sheet comprising a first structural pattern projected upward; a lower optical sheet disposed under the upper optical sheet, the lower optical sheet comprising a second structural pattern projected toward the upper optical sheet; and an adhesion layer provided between the upper optical sheet and the lower optical sheet, wherein the second structural pattern includes a light transmitting part having a traverse cross section getting smaller along an upward direction; and an embedded part continuously connected to an upper portion of the light transmitting part, with a predetermined portion embedded in the adhesion layer, and a circumference of a cross section possessed by the embedded part, contacting with the adhesion layer, is larger than a circumference of a virtual cross section locus formed by extending the light transmitting part upward, with a continuous slope.

Abstract: There is disclosed a multilayer optical sheet module including an upper optical sheet comprising a first structural pattern projected upward; a lower optical sheet disposed under the upper optical sheet, the lower optical sheet comprising a second structural pattern projected toward the upper optical sheet; and an adhesion layer provided between the upper optical sheet and the lower optical sheet, wherein the second structural pattern includes a light transmitting part having a traverse cross section getting smaller along an upward direction; and an embedded part continuously connected to an upper portion of the light transmitting part, with a predetermined portion embedded in the adhesion layer, and a circumference of a cross section possessed by the embedded part, contacting with the adhesion layer, is larger than a circumference of a virtual cross section locus formed by extending the light transmitting part upward, with a continuous slope.

Abstract: An image processing apparatus, a power supply apparatus and a circuit apparatus, the image processing apparatus including a display unit which displays thereon an input image, and a power supply unit which outputs direct current power to drive the display unit, but gradually increases a voltage level of the direct current power.

Abstract: An image processing apparatus, a power supply apparatus and a circuit apparatus, the image processing apparatus including a display unit which displays thereon an input image, and a power supply unit which outputs direct current power to drive the display unit, but gradually increases a voltage level of the direct current power.

Abstract: A light source driving apparatus for time-dividing and driving a plurality of light sources, a display device having the same, and a driving method thereof are provided. The light source driving apparatus includes a light source module including a plurality of light sources; a light source driver which outputs a driving current to drive the light sources; and a switch which selectively feeds the driving current to the light sources respectively and sequentially drives the plurality of the light sources. The light source driver outputs a low-level driving current to drive the light sources, and thus the driving speed, the system efficiency and the optical power can be increased and the manufacturing cost can be reduced.

Abstract: A backlight system and an LCD employing the backlight system. The backlight system includes a plurality of light emitting devices arranged on a base plate to form a plurality of lines each including a plurality of light emitting devices, and a light guide panel having a sidewall spaced apart from the plurality of light emitting devices such that light incident from the plurality of light emitting devices is dispersed by inner reflection, and a scattering region formed adjacent to the base plate such that light incident into the scattering region is irregularly reflected to emit in a direction away from the base plate.

Abstract: A pulse width modulation (PWM) dimming control method and a display apparatus having a PWM dimming control function are provided. The method includes setting a PWM period of a group lighting block based on a state of both a first gate line and a last gate line among a plurality of gate lines corresponding to the group lighting block; and controlling PWM dimming of the group lighting block based on the set PWM period. The display apparatus includes a timing controller which determines a pulse width modulation (PWM) period of a group lighting block based on a state of both a first gate line and a last gate line among a plurality of gate lines corresponding to the group lighting block; and a PWM dimming controller which generates a PWM signal for controlling PWM dimming based on the determined PWM period.

Abstract: Provided are a method and apparatus for compensating display distortion generated when the image is formed using the operational characteristic of a scanner. The method for compensating a display distortion in a display system includes: dividing a sync section where image data is output into a plurality of sections; setting a clock speed of the image data for each of the sections based on an operational characteristic of a scanner; and outputting the image data at a different clock speed for each divided section, the different clock speed reflecting a set clock speed for each divided section.

Abstract: An apparatus and method for representing gradation are provided. The apparatus for representing gradation comprises a diode which emits light with an intensity which is proportional to the current flowing therethrough, a gradation representation unit that is connected in series to the diode and includes a plurality of switches connected in parallel, and a gray controller which receives a video signal and turns on a number of switches corresponding to a gray level of the video signal.

Abstract: A backlight system and an LCD employing the backlight system. The backlight system includes a plurality of light emitting devices arranged on a base plate to form a plurality of lines each including a plurality of light emitting devices, and a light guide panel having a sidewall spaced apart from the plurality of light emitting devices such that light incident from the plurality of light emitting devices is dispersed by inner reflection, and a scattering region formed adjacent to the base plate such that light incident into the scattering region is irregularly reflected to emit in a direction away from the base plate.

Abstract: A backlight system usable in a display positionable in an upright manner, and an LCD employing the backlight system. The backlight system includes a plurality of light emitting device arrangement lines, each line including a plurality of light emitting devices, and a plurality of heat pipes each mounted along one of the plurality of light emitting device arrangement lines, and the plurality of light emitting device arrangement lines and the corresponding mounted heat pipe form a predetermined angle with respect to a horizontal direction such that a movement of working fluid condensed in the heat pipe is accelerated by gravity.