WO2019151603A1 - 투명 디스플레이 장치 및 이를 이용한 멀티 투명 디스플레이 장치 - Google Patents
투명 디스플레이 장치 및 이를 이용한 멀티 투명 디스플레이 장치 Download PDFInfo
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- WO2019151603A1 WO2019151603A1 PCT/KR2018/011228 KR2018011228W WO2019151603A1 WO 2019151603 A1 WO2019151603 A1 WO 2019151603A1 KR 2018011228 W KR2018011228 W KR 2018011228W WO 2019151603 A1 WO2019151603 A1 WO 2019151603A1
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- liquid crystal
- transparent
- crystal panel
- display device
- transparent display
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
Definitions
- the present invention relates to a transparent display device and a multi-transparent display device using the same.
- LCDs liquid crystal displays
- OLEDs organic light emitting diodes
- PDPs plasma display panels
- field emission displays Display device (FED), an electroluminescence display device (ELD), etc., and these display devices are widely used with excellent performance of thinning, light weight, and low power consumption.
- the transparent display device has a problem in that the visibility is severely changed by external light.
- the transparent display device must maintain a black state in a state in which no image is implemented, and there is a problem in that the light cannot be maintained in the black state because light of the background passes through the pixel when the surroundings are bright.
- the background image is overlapped due to the influence of external light, and the sharpness and visibility of the image are inferior.
- An object of the present invention is to provide a transparent display device and a multi-transparent display device using the same that can solve the conventional problems.
- the transparent display device for solving the above problems is a transparent liquid crystal panel; And a controller configured to adjust brightness of an image displayed on the transparent liquid crystal panel and transmittance of light irradiated to the transparent liquid crystal panel, wherein the transparent liquid crystal panel is disposed on a rear surface of the transparent liquid crystal panel and integrally formed with an LED bar provided along an edge line. It includes a manufactured light guide plate.
- the liquid crystal panel comprises a first protective glass; An LCD adhered to the first protective glass; PDLC bonded to the LCD; And a second protective glass adhered to the PDLC.
- the transparent display device includes an illuminance sensor for detecting an external illuminance; And a brightness controller configured to adjust light brightness of the LED bar according to the detected external illuminance.
- the transparent display apparatus further includes an image input unit connected to an image input / output terminal of an external image device by a cable.
- a multi-transparent display apparatus includes: a plurality of transparent displays having a rear perspective function; And an image processor configured to output a divided image obtained by dividing a single image to the plurality of transparent displays, wherein the transparent display comprises: a liquid crystal panel having a transparent liquid crystal layer; And a light guide plate disposed on a rear surface of the liquid crystal panel and integrally manufactured with an LED bar provided along an edge line.
- the transparent display device When using the transparent display device according to an embodiment of the present invention, by providing a transparent display device that implements the side backlight using the LED bar, there is an effect that the image and the back can be viewed at the same time.
- FIG. 1 is a block diagram of a transparent display device according to an embodiment of the present invention.
- FIG. 2 is an exemplary view showing a vertical cross-sectional structure of the liquid crystal panel shown in FIG.
- FIG. 3 is an exemplary diagram illustrating a connection relationship between a transparent LCD, a data driver, a gate driver, and a timing controller of the transparent display device of FIG. 1.
- FIG. 4 is an exemplary view illustrating a state change of a PDLC according to a power-on state.
- FIG. 5 is an exemplary diagram illustrating an example of a linear nanopattern of the light guide plate shown in FIG. 1.
- FIG. 6 is a diagram illustrating an actual photograph of the light guide plate illustrated in FIG. 5.
- FIG. 7 is a block diagram illustrating a multi-transparent display device according to an embodiment of the present invention.
- FIG. 8 is an actual photograph of the multi-transparent display device disclosed in FIG. 7.
- FIG 9 illustrates an example computing environment in which one or more embodiments disclosed herein may be implemented.
- FIG. 1 is a block diagram of a transparent display device according to an embodiment of the present invention
- Figure 2 is an exemplary view showing a vertical cross-sectional structure of the liquid crystal panel shown in Figure 1
- Figure 3 is a transparent LCD of the transparent display device of
- FIG. 4 is an exemplary diagram illustrating a connection relationship between a data driver, a gate driver, and a timing controller
- FIG. 4 is an exemplary diagram illustrating a state change of a PDLC according to a power-up state
- FIG. 6 is an exemplary diagram illustrating an example
- FIG. 6 is a diagram illustrating an actual photograph of the light guide plate illustrated in FIG. 5.
- a transparent display device 100 is a device that displays an image and visually recognizes an object located on the back of the device as it has transparency. More specifically, the liquid crystal panel 200 and the control unit 300 are included.
- the liquid crystal panel 200 is a panel displaying an image provided from the outside, and includes a first protective glass 210, a transparent LCD 220, a PDLC 230, a second protective glass 240, and a light guide plate 250. do.
- the transparent LCD 220 receives and displays an image output from an external image device through an image input unit of the controller 300.
- the transparent LCD 220 is a first enclosure, such as a transparent Lexan-like enclosure, Advanced Link Photonics (ALP), Inc.
- CCFL cold cathode fluorescent lamp
- LED light emitting diode
- a second optical grade plastic having the same second transflective film, a third diffused surface having a surface haze of 0 to 60 percent, a cold cathode fluorescent lamp (CCFL) or a light emitting diode (LED) surrounding the optical grade plastic, 4 Half wavelength mirrors with 15 to 60 percent mirror reluctance, such as diffuser or diffractive surfaces or devices with surface haze between 0 and 30 percent, and polarizer retardation films made by ALP, Inc.
- a second enclosure such as a provided second polarizer retardation film and a transparent Lexan-like enclosure can be configured.
- the PDLC 230 may be a unit that is positioned behind the transparent LCD 220 and adjusts light transmittance according to a control signal provided from the outside.
- fine liquid crystal droplets are formed in the matrix of the polymer material so that light transmittance is changed in response to a voltage applied from the outside.
- the PDLC 230 is adjusted to a transmittance of 1 to 100% from a completely transparent state according to the intensity of the voltage applied by the control of the control unit 300, and has a characteristic of being milky opaque state when the voltage is turned off. .
- the PDLC 230 may adjust light transmittance based on a processing signal of the controller 300, and may be manufactured in various forms if an image beam projected on the panel is scattered and an image is formed and displayed forward. That is, the PDLC 230 may be manufactured in the form of a thin sheet or panel, or may be formed in a sheet attached to a transparent panel.
- the light guide panel LGP 250 may be a unit that uniformly distributes light flowing from a light source positioned at a side in a desired area.
- the light guide plate 250 is provided with an LED bar 251 as a light source on the edge line.
- the light guide plate 250 is a light guide plate having a linear nanopattern formed thereon, wherein the periodic linear nanopattern has a pitch of 1 nm to 1000 nm, and the ratio of the pitch of the pattern to the height of the pattern is 1: 0.5. To 10.
- the light guide plate 250 has a continuous linear pattern having a nano-level pitch, unlike a dot pattern having a discontinuous pattern shape, but does not adopt a structure that changes the density distribution of the pattern. In addition to inducing efficient dispersion of light, the light guide plate may be manufactured thinner.
- the aforementioned "pitch" refers to the spacing between two adjacent linear patterns.
- the linear pattern is preferably a linear pattern having the form of a linear, waveform, curved, circular linear, triangular linear, rectangular linear, hexagonal linear, etc. no.
- the linear linear, triangular linear, rectangular linear, and hexagonal linear may be arranged in concentricity, that is, having the same center to form a periodic linear pattern.
- a linear linear pattern is periodically formed to have a linear pattern form in which bone and acid forms are repeatedly formed.
- the material of the light guide plate 250 is poly methyl methacrylate (PMMA), polycarbonate (PC), acrylic resin, cyclo olefin polymer (COP), polyvinyl alcohol (polyvinyl alcohol). , PVA), and polyvinyl chloride (PVC) may be one or more selected from the group consisting of, but is not limited thereto.
- the LED bar 251 is disposed on the side of the light guide plate 250 without the backlight of the back or the upper surface, and is manufactured integrally with the light guide plate, so there is no need for a separate internal space for providing a backlight as in the prior art. Accordingly, in the conventional liquid crystal display device removed, back perspective may be available as a space for the backlight.
- the transparent display apparatus 100 may include a data driver 201, a gate driver 202, and a timing controller 203.
- the data driver 201 drives a plurality of data lines by supplying data voltages to the plurality of data lines DL to DLm connected to the transparent LCD.
- the gate driver 202 sequentially drives a plurality of gate lines GL1 to GLn by sequentially supplying scan signals to the plurality of gate lines GL1 to GLn.
- the timing controller 203 controls the data driver 201 and the gate driver 202 by supplying various control signals to the data driver 201 and the gate driver 202.
- the timing controller 203 starts scanning according to the timing implemented in each frame, converts externally input image data according to the data signal format used by the data driver 201, and outputs the converted image data.
- the data drive is controlled according to the scan.
- the gate driver 202 sequentially supplies a scan signal of an on voltage or an off voltage to a plurality of gate lines under the control of the timing controller 203 to sequentially drive the plurality of gate lines.
- the gate driver 202 may be located on only one side according to a driving method or a design method of a transparent LCD, or may be located on both sides in some cases.
- the gate driver 202 may include one or more gate driver integrated circuits.
- Each gate driver integrated circuit is connected to a bonding pad of the transparent LCD 220 by a tape automated bonding (TAB) method or a chip on glass (COG) method, or a gate in panel (GIP). It may be implemented as a type and disposed directly on the transparent LCD 220, and in some cases, may be integrated and disposed on the transparent LCD 220.
- TAB tape automated bonding
- COG chip on glass
- GIP gate in panel
- Each gate driver integrated circuit may be implemented by a chip on film (COF) method.
- the gate driving chip corresponding to each gate driver integrated circuit may be mounted on the flexible film, and one end of the flexible film may be bonded to the transparent LCD.
- the data driver 201 drives a plurality of data lines by converting image data received from a timing controller into analog data voltages and supplying them to the plurality of data lines.
- the data driver 201 may drive a plurality of data lines, including at least one source driver integrated circuit.
- Each source driver integrated circuit may be connected to the bonding pads of the LCD and / or PLCD, or may be placed directly, in Tape Automated Bonding (TAB) or needle-on-glass (COG) In some cases, the LCD may be directly disposed on the transparent LCD.
- TAB Tape Automated Bonding
- COG needle-on-glass
- each source driver integrated circuit may be implemented by a chip on film (COF) method.
- COF chip on film
- a source driving chip corresponding to each source driver integrated circuit is mounted on a flexible film, one end of the flexible film is bonded to at least one source printed circuit board, and the other end is bonded to the LCD. do.
- the source printed circuit board may be connected to the control printed circuit board through a connection medium such as a flexible flat cable (FFC) or a flexible printed circuit (FPC).
- a connection medium such as a flexible flat cable (FFC) or a flexible printed circuit (FPC).
- the transparent display device 100 is connected to the output terminal of the image recording medium (for example, any one of the MPEG board, USB, SD card, notebook, PC / DIVX) by a cable and the recording An image stored in the medium or a real time image may be output.
- the image recording medium for example, any one of the MPEG board, USB, SD card, notebook, PC / DIVX
- the transparent display device 100 may further include an illuminance sensor module 400.
- the illuminance sensor module 400 adjusts the brightness of the LED bar 251 based on the detection information detecting the illuminance of the external light.
- the illuminance sensor module 400 may be configured as an illuminance sensor for detecting external illuminance and a brightness adjusting unit for adjusting the light brightness of the LED bar according to the detected external illuminance.
- the illuminance sensor module 400 is an LED control sensor device that detects day and night illuminance deviations and adjusts the brightness of the screen image automatically or manually.
- FIG. 7 is a block diagram illustrating a multi-transparent display device according to an embodiment of the present invention
- FIG. 8 is an actual product picture of FIG. 7.
- the multi-transparent display apparatus 2000 includes a plurality of transparent display units 2100, 2200, 2300, and 2400, and an image processor 2500.
- Each of the plurality of transparent display units 2100, 2200, 2300, and 2400 is a device capable of rear-viewing at the same time as an image display function.
- the first protective glass 210 and the transparent LCD 220 are shown.
- the liquid crystal panel may include a PDLC 230, a second protective glass 240, and a light guide plate 250.
- each of the transparent display units 2100, 2200, 2300, and 2400 may include data drivers 2101, 2201, 2301, and 2401, gate drivers 2102, 2202, 2302, and 2402, and timing controllers 2103, 2203, 2303, and 2403. ), And the functions of each data driver, gate driver, and timing controller are replaced with the description of FIG.
- the multi-transparent display device of the present invention may be combined in a direction of up, down, left, and right, and in the present invention, a form provided with four will be described as an example. On the other hand, the present invention is not limited to this number and / or the bonding direction.
- the image processor 2500 outputs a divided image obtained by dividing a single image provided from the outside to the plurality of transparent displays.
- the multi-transparent display device of the present invention may include a touch panel and an interface unit interworking with touch signals of the touch panel.
- an interactive function with the viewer can be implemented.
- the multi-transparent display device of the present invention can display an image and an exhibit at the same time by mounting a light source device, a power supply, and a media board (image processing apparatus) in the frame and arranging the exhibit in the frame.
- the difference between the general liquid crystal display device and the transparent display device of the present invention is whether or not the liquid crystal panel is transparent, and even the transparent panel cannot implement perspective by itself unless there is an auxiliary auxiliary light source.
- a PDLC and a light guide plate may be attached to a transparent LCD without securing a space for a backlight on a rear surface of the transparent panel, so that an image may be output to the transparent LCD.
- the liquid crystal panel proposed by the present invention can be implemented with a thickness of 3 cm to 7 cm.
- FIG. 9 illustrates an example computing environment in which one or more embodiments disclosed herein may be implemented, illustrating an example of a system 1000 that includes a computing device 1100 configured to implement one or more embodiments described above.
- the computing device 1100 may be a personal computer, server computer, handheld or laptop device, mobile device (mobile phone, PDA, media player, etc.), multiprocessor system, consumer electronics, mini computer, mainframe computer, Distributed computing environments, including, but not limited to, any of the systems or devices described above.
- the computing device 1100 may include at least one processing unit 1110 and a memory 1120.
- the processing unit 1110 may include, for example, a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor, an application specific integrated circuit (ASIC), field programmable gate arrays (FPGA), and the like. It may have a plurality of cores.
- the memory 1120 may be volatile memory (eg, RAM, etc.), nonvolatile memory (eg, ROM, flash memory, etc.), or a combination thereof.
- computing device 1100 may include additional storage 1130.
- Storage 1130 includes, but is not limited to, magnetic storage, optical storage, and the like.
- Storage 1130 may store computer readable instructions for implementing one or more embodiments disclosed herein, and other computer readable instructions for implementing operating systems, application programs, and the like. Computer readable instructions stored in storage 1130 may be loaded into memory 1120 for execution by processing unit 1110.
- computing device 1100 may include input device (s) 1140 and output device (s) 1150.
- the input device (s) 1140 may include, for example, a keyboard, mouse, pen, voice input device, touch input device, infrared camera, video input device, or any other input device.
- output device (s) 1150 may include, for example, one or more displays, speakers, printers, or any other output device.
- computing device 1100 may use an input device or output device included in another computing device as input device (s) 1140 or output device (s) 1150.
- computing device 1100 may include communication connection (s) 1160 that enable computing device 1100 to communicate with another device (eg, computing device 1300).
- the communication connection (s) 1160 may be a modem, a network interface card (NIC), an integrated network interface, a radio frequency transmitter / receiver, an infrared port, a USB connection, or other for connecting the computing device 1100 to another computing device. It may include an interface. In addition, communication connection (s) 1160 may include a wired connection or a wireless connection. Each component of the computing device 1100 described above may be connected by various interconnections such as a bus (eg, peripheral component interconnect (PCI), USB, firmware (IEEE 1394), optical bus structure, etc.). And may be interconnected by the network 1200. As used herein, terms such as “component”, “system” and the like generally refer to a computer-related entity that is hardware, a combination of hardware and software, software, or running software.
- PCI peripheral component interconnect
- IEEE 1394 firmware
- optical bus structure etc.
- a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer.
- an application running on a controller and the controller can be a component.
- One or more components may reside within a thread of process and / or execution, and the components may be localized on one computer and distributed between two or more computers.
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Abstract
Description
Claims (5)
- 투명 액정패널; 및상기 투명 액정패널에서 표시되는 영상의 밝기 및 상기 투명 액정패널에 조사된 빛의 투과도를 조절하는 제어부를 포함하고,상기 투명 액정패널은배면에 배치되어, 엣지 라인을 따라 구비된 LED 바와 일체형으로 제작된 도광판을 포함하는 투명 디스플레이 장치.
- 제1항에 있어서,상기 액정패널은제1 보호 글래스;상기 제1 보호 글래스에 접착된 LCD;상기 LCD와 접착된 PDLC; 및상기 PDLC와 접착된 제2 보호 글래스를 포함하는 투명 디스플레이 장치.
- 제1항에 있어서,외부 조도를 검출하는 조도 센서; 및검출된 외부 조도에 따라 상기 LED 바의 광 밝기를 조절하는 밝기 조절부를 더 포함하는 투명 디스플레이 장치.
- 제1항에 있어서,외부 영상기기의 영상 입출력단자와 케이블로 연결되는 영상입력부를 더 포함하는 투명 디스플레이 장치.
- 후면 투시 기능을 갖는 복수 개의 투명 디스플레이; 및단일 영상을 분할한 분할 영상을 상기 복수 개의 투명 디스플레이로 출력하는 영상처리부;를 포함하고,상기 투명 디스플레이는액정층을 갖는 액정패널; 및상기 액정패널의 배면에 배치되고, 엣지 라인을 따라 구비된 LED 바와 일체형으로 제작된 도광판을 포함하는 멀티 투명 디스플레이 장치.
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KR20180013453 | 2018-02-02 | ||
KR10-2018-0013453 | 2018-02-02 | ||
KR1020180027504A KR20190094063A (ko) | 2018-02-02 | 2018-03-08 | 투명 디스플레이 장치 및 이를 이용한 멀티 투명 디스플레이 장치 |
KR10-2018-0027504 | 2018-03-08 |
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