Lg Display Co., Ltd.

Lg Philips Lcd Co., Inc.

Dongguk University Industry-Academic Cooperation Foundation

Ji Young Ahn

Ki Han Kim

Moon Sun Lee

Pu Reum Kim

Dong Woo Kang

Hyeon Ho Son

Choon Woo Kim

Seok Won Ji

Young Seok Choi

So Youn Kim

Kyoung Tae Kim

Ho Young Jung

Yu Hoon Kim

Ji Young Yum

Byong Tae Ryu

Qiao Song Chen

Disclosed is a transparent display device. The transparent display device includes a first display panel, including a transmissive area and an emissive area where a first pixel including a plurality of subpixels displaying an image is provided, and a second display panel including a second pixel provided to overlap the emissive area and the transmissive area of the first display panel, the second display panel being provided on a first surface of the first display panel. The second pixel of the second display panel controls an amount of light incident on the first display panel, thereby preventing a visibility of an image displayed by the first display panel from being reduced by external light.

Transparent display device

A light shielding apparatus that may transmit or shield light by using a plurality of PDLC layers, a method of fabricating the light shielding apparatus, and a transparent display device including the light shielding apparatus are discussed. The light shielding apparatus can include first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and first and second polymer dispersed liquid crystal layers between the first electrode and the second electrode, wherein the first polymer dispersed liquid crystal layer includes first droplets having first liquid crystals, and the second polymer dispersed liquid crystal layer includes second droplets having second liquid crystals and first dichroic dyes.

Light shielding apparatus, method of fabricating the same, and transparent display device including the same

There is provided a sol-gel chip using a porous substrate for entrapping small molecules and a method for screening a small molecule-specific material using the same, and more particularly, a porous substrate sol-gel chip characterized in that a sol-gel composition for entrapping small molecules is spotted on a surface of the porous substrate, a method for manufacturing the porous substrate sol-gel chip for entrapping small molecules, and a method for screening a material specifically binding to the small molecules using the porous substrate sol-gel chip for entrapping small molecules. According to the present invention, the small molecules can be effectively entrapped in the chip and the inflow of aptamers can be maintained as compared with the existing methods and thus aptamers specific to an extensive range of small molecules can be more easily selected.

Sol-gel chip using porous substrate for entrapping small molecules and screening method of small molecules specific material using thereof

There are provided a light control device, a method for manufacturing the light control device, and a display device comprising the light control device. The light control device includes a first substrate and a second substrate facing each other, and a plurality of liquid crystal units between the first substrate and the second substrate, and the plurality of liquid crystal units includes a first liquid crystal unit including a droplet including a first liquid crystal and a polymer and a second liquid crystal unit which is disposed on or under the first liquid crystal unit and configured as a polymer networked liquid crystal (PNLC) including a second liquid crystal, a coloring member, and a network.

Light control device, method for manufacturing light control device and display device comprising light control device

There are provided a light control apparatus, a method for manufacturing the light control apparatus, and a display apparatus including the light control apparatus. The light control apparatus includes a first substrate and a second substrate facing each other, and a plurality of liquid crystal units between the first substrate and the second substrate, and the plurality of liquid crystal units includes a first liquid crystal unit having a droplet including a liquid crystal and a polymer and configured as a polymer dispersed liquid crystal (PDLC) and a second liquid crystal unit which is disposed on or under the first liquid crystal unit and configured as a guest-host liquid crystal (GHLC) including a liquid crystal and a coloring member.

Light control apparatus, manufacturing method for light control apparatus, and display apparatus comprising light control apparatus

A light controlling apparatus includes first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and a liquid crystal layer between the first electrode and the second electrode, the liquid crystal layer including cholesteric liquid crystals, wherein the cholesteric liquid crystals have a focal conic state in a light shielding mode in case where no voltage is applied, and have a homeotropic state in a transparent mode in case where a voltage is applied.

Light controlling apparatus and transparent display including the same

A light controlling apparatus, a method of fabricating the light controlling apparatus, and a transparent display device including the light controlling apparatus are disclosed, in which light may be transmitted or shielded using a polymer dispersed liquid crystal (PDLC) layer and a guest-host liquid crystal (GHLC) layer, where the guest-host liquid crystal layer includes dichroic dyes. The light controlling apparatus includes first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and a polymer dispersed liquid crystal (PDLC) layer and a guest-host liquid crystal (GHLC) layer between the first electrode and the second electrode, wherein the PDLC layer includes first liquid crystals having droplets, and the GHLC layer includes second liquid crystals and dichroic dyes.

Light controlling apparatus, method of fabricating the light controlling apparatus and transparent display device including the light controlling apparatus with transparent mode and light shielding mode

A light controlling apparatus includes a first electrode on a first substrate; a first alignment film on the first electrode; a second electrode on a second substrate facing the first substrate; a second alignment film on the second electrode; and a guest-host liquid crystal layer having cholesteric liquid crystals and dichroic dyes between the first and second alignment films. The first and second electrodes provide a vertical electric field, and at least one of the first and second electrodes provides a horizontal electric field. The cholesteric liquid crystals have a homeotropic state when an electric field in a first direction is applied to the guest-host liquid crystal layer to realize a transparent mode. The cholesteric liquid crystals have a focal conic state when an electric field in a second direction is applied to realize a light shielding mode. A same state is maintained when no electric field is applied.

An in-plane switching mode liquid crystal display device includes first and second substrates facing each other, a gate line and a data line arranged on the first substrate crossing each other and defining a pixel region, a switching device at a crossing of the gate line and the data line, a common electrode and a pixel electrode alternately disposed in the pixel region, at least one of the common electrode and the pixel electrode including a multi-layer having a conductor layer and a reflectance reducing layer, and a liquid crystal layer formed between the first and second substrates.

In-plane switching mode liquid crystal display device including multi-layer electrode

In-plane switching mode liquid crystal display device

A method and apparatus for simulating video data of a liquid crystal display (LCD) device is disclosed. The simulation method includes providing voltage-versus-transmittance data and viewing angle-versus-transmittance data, which vary with a liquid crystal mode, using an optical simulation, converting the result of the optical simulation into a lookup table in connection with a viewing angle and an applied voltage, matching a driving voltage for gamma setting based on the liquid crystal driving mode to gray level data corresponding to the voltage-versus-transmittance data, and correcting minimum/maximum brightness levels, simulating a user-desired test image on a user interface screen; and correcting a color of data of a test image according to properties of an output panel, and finally displaying the color-corrected image.

Apparatus and method for simulating video data of liquid crystal display device

In order to improve video quality by accurately detecting a preferred color region and correcting the preferred color region to a target color, a method for correcting a color of a display device includes converting input R/G/B data into Y/Cb/Cr data, calculating a weight by an exponential function using a dispersion and a distance between an input value and a target value of the Y/Cb/Cr data, comparing the calculated weight with a target color range so as to detect a target color region, and calculating a detection probability, detecting an average value, a minimum value and a maximum value of the Y/Cb/Cr data for the detected target color region from a previous frame, calculating a correction constant using the average value, the minimum value and the maximum value of the Y/Cb/Cr data, a predetermined target value of the Y/Cb/Cr data, and the Y/Cb/Cr which is detected as the target color region and is input, adding the detection probability to the calculated correction constant as the weight so as to calculate a correction amount, correcting the input Y/Cb/Cr data using the calculated correction amount so as to output the Y/Cb/Cr data, and inversely converting the corrected Y/Cb/Cr data into R/G/B data.

Method and apparatus for correcting color of display device

A method and apparatus for correcting a preferred color, which is capable of correcting the preferred color in consideration of an input image and the visual characteristics of a person by correcting differences between colors preferred by the person and an average color coordinate of a color to be corrected in the input image, and a liquid crystal display device using the same are disclosed. The method for correcting a preferred color includes converting data of an input image into lightness (L), chroma (C) and hue (H) data, detecting a preferred-color pixel from the input image, calculating average values of the L, C and H data of the preferred-color pixel, correcting the C and H data of the preferred-color pixel according to differences between the average values of the C and H data and reference values of the C and H data, correcting the L data of the preferred-color pixel according to the average value of the L data according to the hue of the preferred-color pixel, and inversely converting the corrected L, C and H data into image data.

Method and apparatus for correcting preferred color and liquid crystal display device using the same

Disclosed herein are a method and apparatus for detecting a preferred color, which is capable of accurately detecting a preferred-color area with a small amount of computations, and a liquid crystal display device using the same. The method for detecting a preferred color includes comparing a hue value of an input pixel with hue reference values and detecting a first preferred-color pixel, and performing a best linear estimation (BLE) operation with respect to the first preferred-color pixel and detecting a second preferred-color pixel.

Method and apparatus for detecting preferred color and liquid crystal display device using the same

An IPS (In-Plane Switching) mode LCD (Liquid Crystal Display) includes first and second substrates facing each other; a plurality of gate lines and data lines arranged in a matrix configuration on the first substrate and defining a plurality of pixel regions; at least one common electrode and one pixel electrode alternatingly disposed at the pixel region to generate a horizontal electric field, at least one of them having a structure of a dual layer; and a liquid crystal layer formed between the first and second substrates.

Growing community of inventors

Gyeonggi-do, South Korea

Ji Young Ahn