WO2019006822A1 - 显示面板及应用的显示装置 - Google Patents
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- WO2019006822A1 WO2019006822A1 PCT/CN2017/097482 CN2017097482W WO2019006822A1 WO 2019006822 A1 WO2019006822 A1 WO 2019006822A1 CN 2017097482 W CN2017097482 W CN 2017097482W WO 2019006822 A1 WO2019006822 A1 WO 2019006822A1
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Definitions
- the present application relates to a display panel and a display device therefor, and more particularly to a display panel having an adjustable zoom and a display device that is not affected by the depth of field.
- Depth of field refers to the relatively clear imaging range of the image sensing device before and after the focus.
- optics especially video or photography
- the lens can only concentrate the light to a fixed distance, and it will gradually blur away from this point.
- the degree of image blur is not visible to the naked eye. This distance is called the depth of field.
- the image sensing component requires a variable zoom capability.
- an image sensor and a display panel are combined to form a multi-function display, which can achieve both image scanning and display, and image scanning functions such as a computer camera and a computer eye.
- a video input device is widely used in video conferencing, telemedicine and real-time monitoring.
- the communication parties can each have images on the network through video input devices.
- voice conversations and communication in addition, people can also use it for the current popular digital image, audio and video processing, playing an increasingly important role in people's lives and work.
- the image sensing module used has a fixed focal length range, so its imaging effect is poorly affected by the depth of field.
- the traditional glass or plastic lens has a single focal length and does not have the function of adjusting the zoom distance.
- two or more conventional lens combinations are required, and with a voice coil motor or a piezoelectric actuator, the relative distance of the lens in the mirror group is changed to adjust the mirror group equivalent.
- the focal length however, the volume of the voice coil motor itself makes the traditional auto-focus module too large, which makes the application difficult.
- an object of the present application is to provide a display panel and a display device for the application, and more particularly to a display panel having an adjustable zoom and a display device that is not affected by the depth of field, and the display device thereof is adapted to the present Most of the devices are light, thin and short, which greatly enhances their usability.
- the technical problem solved by the present application is to use a combination of an image sensor module with adjustable zoom and a lens module (Lens Array) in a thin film transistor liquid crystal panel (TFT LCD), and combine the imaging principle of the lens.
- the image sensing module and the TFT panel are used to image or scan the object without being limited by the depth of field, and the effect of the adjustable zoom can be achieved to overcome the problems of the prior art.
- the lens module used in the present application is fabricated by using a wafer-level manufacturing technique, so that there is no problem of excessive volume, and it is easy to apply a portable product that is light, thin, and short.
- the present application provides a display panel including: a first substrate; a second substrate; a liquid crystal layer disposed between the first substrate and the second substrate; and an image sensing module disposed on the first a side of the second substrate facing the first substrate; the lens module is disposed on a side of the second substrate facing the first substrate, and corresponding to the position of the image sensing module, focusing the image light to The image sensing module and the active switch array module are disposed on a side of the second substrate facing the first substrate for driving liquid crystal uniformly distributed in the liquid crystal layer; wherein the image sensing module receives The image light of the lens module is focused and modulated to adjust a focal length of the image sensing module.
- the image sensing module is disposed in parallel with the active switch array module.
- the image sensing module includes a light sensor, and the light sensor is a photodiode or a photo transistor.
- the photosensor is made of an organic or inorganic material having a narrow band gap of less than 1.12 eV.
- the photosensor is made of amorphous silicon, microcrystalline silicon, polycrystalline silicon or mercury cadmium telluride semiconductor material having a narrow gap of less than 1.12 eV.
- the lens module is fabricated using a wafer level manufacturing technique.
- the lens module is made of optical grade glass, polymethyl methacrylate or carbonate resin.
- an opaque region is further disposed between the first substrate and the lens module, and the material used is effective to block the penetration of visible light, and only allows the infrared light band to pass through.
- Another object of the present application is an image sensing display device comprising: a direct-lit or edge-lit backlight module; a control component; and a display panel comprising: a first substrate; a second substrate; and a liquid crystal layer disposed on Between the first substrate and the second substrate; an image sensing module disposed on a side of the second substrate facing the first substrate; a lens module disposed on the second substrate facing the a side of the first substrate, and corresponding to the position of the image sensing module, focusing the image light to the image sensing module; and an active switch array module disposed on the second substrate facing the first substrate
- the image sensing module receives the image light that is focused by the lens module and modulates the focal length of the image sensing module.
- the image sensing module is disposed in parallel with the active switch array module.
- the image sensing module includes a light sensor.
- the photosensor is a photodiode or a phototransistor.
- the photosensor is made of an organic or inorganic material having a narrow band gap of less than 1.12 eV.
- the lens module is fabricated using a wafer level manufacturing technique.
- the lens module is made of optical grade glass.
- the lens module is made of polymethyl methacrylate.
- the lens module is made of a carbonate resin.
- an opaque region is further disposed between the first substrate and the lens module for traversing the infrared light band.
- the present application provides another display panel, including: a first substrate; a second substrate; a liquid crystal layer disposed between the first substrate and the second substrate; and an image sensing module disposed on the
- the image sensing module includes a light sensor, and the lens module is disposed on a side of the first substrate facing the second substrate and corresponds to the image.
- a position of the sensing module for focusing image light onto the image sensing module, the lens module is made of an optical grade material and fabricated by a wafer level manufacturing technique; and an active switch array module is disposed at the
- the second substrate faces the side of the first substrate and is disposed in parallel with the image sensing module.
- the first substrate and the lens module are further disposed to pass through only the infrared light band.
- the image sensing module is configured to receive the image light after the lens module is focused and to adjust the focal length of the image sensing module.
- the effect of the adjustable zooming is achieved by using the additional lens module and the image sensing module inside the TFT liquid crystal display panel, which can be overcome by the depth of field and effectively overcome the aforementioned device application problem. Further, This device can be used to implement image recognition and vein sensing functions.
- FIG. 1A is a schematic diagram of a display panel with adjustable zoom according to an embodiment of the present application.
- FIG. 1B is a schematic diagram of a path of image sensing converted to an electrical signal according to an embodiment of the present application.
- FIG. 1C is a schematic diagram of a path of image sensing converted to an electrical signal according to another embodiment of the present application.
- FIG. 2A is a schematic diagram of a display panel with adjustable zoom according to another embodiment of the present application.
- FIG. 2B is a schematic diagram of a path of image sensing converted to an electrical signal according to another embodiment of the present application.
- 2C is a schematic diagram of a path of image sensing converted to an electrical signal according to still another embodiment of the present application.
- FIG. 3A is a schematic diagram of a display panel with adjustable zoom according to still another embodiment of the present application.
- FIG. 3B is a schematic diagram of a path of image sensing converted to an electrical signal according to still another embodiment of the present application.
- FIG. 3C is a schematic diagram of a path of image sensing converted to an electrical signal according to still another embodiment of the present application.
- the word “comprising” is to be understood to include the component, but does not exclude any other component.
- “on” means located above or below the target component, and does not mean that it must be on the top based on the direction of gravity.
- a liquid crystal display is a liquid crystal that applies an electric field between two glass substrates to display numbers or images.
- the liquid crystal is composed of a substance between a liquid and a solid.
- the picture is formed by controlling the light transmission of the liquid crystal display panel.
- the liquid crystal is uniformly disposed in the liquid crystal display panel.
- FIG. 1A is a schematic diagram of a display panel with adjustable zoom according to an embodiment of the present application.
- the display panel includes: a first substrate 1; a second substrate 2; and a liquid crystal layer 3 disposed between the first substrate 1 and the second substrate 2.
- the image sensing module 22 is disposed on a side of the second substrate 2 facing the first substrate 1; the lens module 4 is disposed on a side of the second substrate 2 facing the first substrate 1 and corresponds to the The image sensing module 22 is configured to focus the image light to the image sensing module 22; the active switch array module 21 is disposed on a side of the second substrate 2 facing the first substrate 1 for driving the uniform distribution The liquid crystal in the liquid crystal layer 3; wherein the image sensing module 22 receives the image light after the lens module 4 is focused.
- an opaque region 11 is further disposed between the first substrate 1 and the lens module 4, and the material used therein effectively blocks the penetration of visible light, and only allows the infrared light band to pass through. , as shown in Figure 1A.
- the display panel shown in FIG. 1A includes a first substrate 1 , a second substrate 2 , a lens module 4 , an active switch array module 21 , and an image sensing module 22 .
- the first substrate 1 is a color filter side substrate
- the second substrate 2 is a TFT side substrate
- a liquid crystal layer 3 is interposed between the first substrate 1 and the second substrate 2.
- the image sensing module 22 is disposed in parallel with the active switch array module 21, and the array of the lens modules 4 disposed on the side of the second substrate 2 facing the first substrate 1 corresponds to the image sense.
- the position of the module 22 is transmitted through the lens refraction effect of the lens module 4 to focus the image light onto the image sensing module 22.
- a light-transmissive region 12 for displaying an image there is a light-transmissive region 12 for displaying an image, and on the left side thereof is an opaque region 11, and the material used for the opaque region 11 is only Allows light in a specific band (such as the infrared band) to pass through.
- an opaque region 11 is further disposed between the first substrate 1 and the lens module 4, and the material used is effective to block the penetration of visible light, and only allows the infrared light band to pass through.
- a single optical component has only a single focal length, and thus the effect of imaging the object is affected by the depth of field.
- the present application adds a lens module 4 on the side of the opaque area 11 facing the second substrate 2, which can be combined with the image sensing module 22 located below it to form an adjustable zoom image sensing. Unit, which improves image quality without being limited by depth of field.
- circuits for realizing the image sensing module 22 or even the functions of the CPU, the RAM, the Flash, the DSP, the compression encoding processor, and the image sensor may be separately formed on the array substrate.
- the second substrate may be, but not limited to, a single crystal silicon substrate, a low temperature polycrystalline silicon substrate, a high temperature polycrystalline silicon substrate, or other substrate capable of satisfying a high mobility of the peripheral integrated circuit.
- the lens module 4 of the present embodiment is fabricated by using a wafer level manufacturing technology, and has the advantage of being small in size, and does not cause bulky adverse effects on the whole system.
- the material of the lens module 4 is selected from optical grades. Light transmissive material. That is, in one embodiment, the lens module 4 is fabricated using a wafer level manufacturing technique, and the lens module 4 may be made of optical grade glass, polymethyl methacrylate or carbonate resin.
- another object of the present application is applicable to an image sensing display device, and the image sensing display device can be combined with the backlight module, for example, including a direct-lit or edge-lit backlight module.
- the image sensing display panel is also included.
- FIG. 1B is a schematic diagram of a path of image sensing converted to an electrical signal according to an embodiment of the present application.
- the image sensing display panel structure of FIG. 1B includes a second substrate 2 and an active switch array module 21 and an image sensing module 22 thereon.
- the image sensing module 22 is disposed on a side of the second substrate 2 facing the first substrate 1.
- the image sensing module 22 has a light sensor 221 that can receive the image light after the lens module 4 is focused and converted into a current, and then the current flow.
- the photoelectric switch 222 to the side forms an electrical signal, and then transmits the electrical signal to the active switch array module 21 to control the liquid crystal layer 3 to generate an image.
- the active switch array module 21 has a gate switch 211 that can receive the electrical signal transmitted by the photoelectric switch 221, and then controls the current of the liquid crystal driving voltage from the source electrode 213 to the drain electrode 214, and then to the pixel electrode 215.
- An electric field is formed with the first substrate 1 in FIG. 1A to control the rotation of the liquid crystal molecules in the liquid crystal layer 3.
- the gate switch 211 is provided with an electrically isolated insulating protection layer 212.
- An insulating protection layer 216 is also disposed above the thin film transistor module 21 and the image sensing module 22 to isolate the liquid crystal.
- the image sensing module 22 includes a photo sensor 221, which may be a photodiode or a phototransistor, and the material thereof may be selected from a narrow band gap organic or inorganic material having a band gap of less than 1.12 eV.
- a photodiode composed of a semiconductor material such as amorphous silicon, microcrystalline silicon, polycrystalline silicon or mercury cadmium telluride (HgCdTe).
- FIG. 1C is a schematic diagram of a path of image sensing converted to an electrical signal according to another embodiment of the present application.
- the first substrate 1 of the image sensing panel is provided with a light transmissive region 12 and an opaque region 11 that only allows light of a specific wavelength band to pass through as shown in FIG. 1A.
- the image sensing display panel structure of FIG. 1C includes a first substrate 1 provided with a light transmissive region 12 (as shown in FIG. 1A) and an opaque region 11 that only allows the infrared light band to pass through, and a second substrate 2 and The active switch array module 21 and the image sensing module 22 thereon (as shown in FIG. 1B).
- the image sensing module 22 is disposed on a side of the second substrate 2 facing the first substrate 1 corresponding to a lower area of the opaque region 11 , and the image sensing module 22 has infrared light that can receive the outside through the opaque region 11 .
- the photosensor 221 is converted into a current, and then the current flows to the adjacent photoelectric switch 222 to form an electrical signal, and then the electrical signal is transmitted to the active switch array module 21 (as shown in FIG. 1B) to control the liquid crystal layer 3 to generate an image.
- the photo sensor 221 may be a photodiode or a phototransistor, and the material thereof may be selected from a narrow band gap organic or inorganic material having an energy gap of less than 1.12 eV, such as amorphous silicon, microcrystalline silicon, polycrystalline silicon or It is a phototube composed of a semiconductor material such as mercury cadmium telluride (HgCdTe). Since the photosensor 221 of the present embodiment mainly absorbs infrared light to induce current, an opaque region 11 that allows only the infrared light band to pass through is disposed in this embodiment as shown in FIG. 1A. The arrangement of the light area 11 allows the image sensing module 22 to receive the image light that is focused by the lens module 4 after passing through the opaque area 11, and is not affected by external ambient light or the backlight, thereby affecting the sensitivity of the sensing.
- a narrow band gap organic or inorganic material having an energy gap of less than 1.12 eV, such as amorphous silicon, microcrystalline silicon, polycrystalline silicon
- the active switch array module 21 has a gate switch 211 that can receive the infrared signal received by the photoelectric switch 221 and convert and transmit the electrical signal, thereby controlling the liquid crystal driving voltage.
- the current flows from the source electrode 213 to the drain electrode 214, and then to the pixel electrode 215 to form an electric field with the first substrate 1 to control the rotation of the liquid crystal molecules in the liquid crystal layer 3.
- An galvanically isolated insulating protective layer 212 is disposed above the gate switch 211, and an insulating protective layer 216 is disposed above the thin film transistor module 21 and the image sensing module 22 to isolate the liquid crystal.
- the application can realize the effect of the adjustable zooming in the TFT liquid crystal display panel by using the additional lens module and the image sensing module, which can be overcome by the depth of field and effectively overcome the aforementioned application problem of the device. Further, this device can be used. To achieve image recognition and vein sensing.
- the lens module 4 is mounted on the first substrate 1 facing the second substrate 2 as shown in FIG. 2A to FIG. 2C.
- the side corresponds to the position of the image sensing module 22 and focuses the image light to the image sensing module 22 via the lens module 4 .
- the image sensing module 22 receives the lens module 4
- the focused image light is converted into a current photosensor 221, and then the current flows to the adjacent photoelectric switch 222 to form an electrical signal, and then the electrical signal is transmitted to the active switch array module 21 to control the liquid crystal layer 3 to generate an image.
- the active switch array module 21 has a gate switch 211 that can receive the electrical signal transmitted by the photoelectric switch 221, and then controls the current of the liquid crystal driving voltage from the source electrode 213 to the drain electrode 214, and then to the pixel electrode 215.
- An electric field is formed with the first substrate 1 in FIG. 2A to control the rotation of the liquid crystal molecules in the liquid crystal layer 3.
- An galvanically isolated insulating protective layer 212 is disposed above the gate switch 211, and an insulating protective layer 216 is disposed above the thin film transistor module 21 and the image sensing module 22 to isolate the liquid crystal.
- an opaque region 11 is disposed between the first substrate 1 and the lens module 4 to filter and isolate light of a specific wavelength band.
- the display panel The structure does not add the lens module 4 (as shown in FIG. 1A and FIG. 2A), but uses the change of the electric field to drive the liquid crystal 31 in the liquid crystal layer 3 to change the angle, thereby focusing the image light on the image sensing module 22.
- a liquid crystal 31 can be filled between the first substrate 1 (color film substrate) and the second substrate 2 (active switch array substrate) by using a TFT-LCD (Thin Film Transistor Liquid Crystal Display) process, thereby forming a “planar” liquid crystal.
- TFT-LCD Thin Film Transistor Liquid Crystal Display
- the image sensing module 22 receives the light sensor 221 that converts the focused image light of the liquid crystal 31 into a current, and then the current flows to the adjacent photoelectric switch 222 to form a electrical signal, and then transmits the electrical signal to the active switch array module. 21 to control the liquid crystal layer 3 to generate an image.
- the active switch array module 21 has a gate switch 211 that can receive the electrical signal transmitted by the photoelectric switch 221, and then controls the current of the liquid crystal driving voltage from the source electrode 213 to the drain electrode 214, and then to the pixel electrode 215.
- An electric field is formed with the first substrate 1 in FIG. 3A to control the rotation of the liquid crystal molecules in the liquid crystal layer 3.
- An insulating protective layer 212 is disposed on the side of the thin film transistor module 21 and the image sensing module 22 facing the first substrate 1 , and an insulating protective layer 216 and a liquid crystal are disposed on the side of the thin film transistor module 21 and the image sensing module 22 facing the first substrate 1 . isolation.
- FIG. 1 In FIG.
- the liquid crystal lens has the following advantages: 1.
- the existing lens can only realize the "zoom" visual effect by magnifying the part of the photo by digital technology, and the real optical zoom cannot be realized, and the liquid crystal lens
- the arrangement direction of the liquid crystal molecules can be changed by changing the operating voltage, thereby realizing the effect of adjusting the physical focal length, and the thin and light characteristics are a great advantage, and an effective optical zoom effect can be achieved in a small space;
- Existing lenses are all The prominent lens lens is not conducive to the monitoring and protection of secret information, and the surface of the "planar" liquid crystal lens formed by utilizing the characteristics of liquid crystal molecules does not appear to be different from the liquid crystal panel, and has strong concealment.
- a display device includes: a direct-lit or edge-lit backlight module; a control component; and a display panel described in each embodiment.
- the display device can be TN (Twisted Nematic), STN (Super Twisted Nematic), OCB (Optically Compensated Curved Arrangement, Optically Compensated Birefringence, VA (Vertical Alignment) type, curved liquid crystal display device, but is not limited thereto.
- the related lens is formed on the substrate of the display panel (such as a lens module) or distributed on the internal liquid crystal layer (such as a liquid crystal lens), without occupying the outer frame area of the display panel, and the same, "flat type" "The lens can be physically zoomed for enhanced image capture.
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Abstract
Description
Claims (20)
- 一种显示面板,包括:一第一基板;一第二基板;液晶层,设置于第一基板与第二基板之间;影像感测模块,配置于所述第二基板面向所述第一基板的一侧;透镜模块,阵列配置于所述第二基板面向所述第一基板的一侧,并对应于所述影像感测模块的位置,用以将影像光线聚焦到所述影像感测模块;以及主动开关阵列模块,配置于所述第二基板面向所述第一基板的一侧;其中所述影像感测模块用以接收所述透镜模块聚焦后的影像光线并调变所述影像感测模块的焦距。
- 如权利要求1所述的显示面板,其中,所述影像感测模块与所述主动开关阵列模块平行设置。
- 如权利要求1所述的显示面板,其中,所述影像感测模块包含光传感器。
- 如权利要求3所述的显示面板,其中,所述光传感器为光二极管。
- 如权利要求3所述的显示面板,其中,所述光传感器为光敏晶体管。
- 如权利要求3所述的显示面板,其中,所述光传感器材质为能隙小于1.12eV窄禁带的有机或无机材料。
- 如权利要求1所述的显示面板,其中,所述透镜模块为利用晶圆级的制造技术所制作。
- 如权利要求7所述的显示面板,其中,所述透镜模块的材质为光学等级的玻璃、聚甲基丙烯酸甲酯或者碳酸酯树脂。
- 如权利要求1所述的显示面板,其中,所述第一基板与所述透镜模块之间还设置有一不透光区,用于使红外光波段穿越。
- 一种显示装置,包括:背光模块;控制部件;以及显示面板,包括:一第一基板;一第二基板;液晶层,设置于第一基板与第二基板之间;影像感测模块,配置于所述第二基板面向所述第一基板的一侧;透镜模块,阵列配置于所述第二基板面向所述第一基板的一侧,并对应于所述影像感测模块的位置,用以将影像光线聚焦到所述影像感测模块;以及主动开关阵列模块,配置于所述第二基板面向所述第一基板的一侧;其中,所述影像感测模块用以接收所述透镜模块聚焦后的影像光线并调变所述影像感测模块的焦距。
- 如权利要求10所述的显示装置,其中,所述影像感测模块与所述主动开关阵列模块平行设置。
- 如权利要求10所述的显示装置,其中,所述影像感测模块包含光传感器。
- 如权利要求12所述的显示装置,其中,所述光传感器为光二极管或光敏晶体管。
- 如权利要求12所述的显示装置,其中,所述光传感器材质为能隙小于1.12eV窄禁带的有机或无机材料。
- 如权利要求10所述的显示装置,其中,所述透镜模块为利用晶圆级的制造技术所制作。
- 如权利要求15所述的显示装置,其中,所述透镜模块的材质为光学等级的玻璃。
- 如权利要求15所述的显示装置,其中,所述透镜模块的材质为聚甲基丙烯酸甲酯。
- 如权利要求15所述的显示装置,其中,所述透镜模块的材质为碳酸酯树脂。
- 如权利要求10所述的显示装置,其中,所述第一基板与所述透镜模块之间还设置有一不透光区,用于使红外光波段穿越。
- 一种显示面板,包括:一第一基板;一第二基板;液晶层,设置于所述第一基板与所述第二基板之间;影像感测模块,配置于所述第二基板面向所述第一基板的一侧,所述影像感测模块包含有光传感器;透镜模块,阵列配置于所述第一基板面向所述第二基板的一侧并对应于所述影像感测模块的位置,用以将影像光线聚焦到所述影像感测模块,所述透镜模块以光学等级的材质,且利用晶圆级的制造技术所制作;以及主动开关阵列模块,配置于所述第二基板面向所述第一基板的一侧,并与所述影像感测模块平行设置;其中,所述第一基板与所述透镜模块之间还设置有一仅可使红外光波段穿越的不透光区,所述影像感测模块用以接收所述透镜模块聚焦后的影像光线并调变所述影像感测模块的焦距。
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US15/561,677 US20190391458A1 (en) | 2017-07-07 | 2017-08-15 | Liquid crystal display panel and display apparatus using the same |
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CN201710551511.6A CN107153290A (zh) | 2017-07-07 | 2017-07-07 | 显示面板及应用的显示装置 |
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CN107315300A (zh) * | 2017-07-07 | 2017-11-03 | 惠科股份有限公司 | 显示面板及应用的显示装置 |
CN107422571B (zh) * | 2017-09-20 | 2020-08-21 | 京东方科技集团股份有限公司 | 显示面板、装置及其操控方法 |
CN107592444B (zh) * | 2017-10-30 | 2019-10-25 | 北京京东方显示技术有限公司 | 一种显示面板和显示装置 |
CN109143704B (zh) * | 2018-09-13 | 2021-03-12 | 合肥京东方光电科技有限公司 | 显示面板及终端设备 |
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