WO2015024335A1 - 透明显示装置 - Google Patents
透明显示装置 Download PDFInfo
- Publication number
- WO2015024335A1 WO2015024335A1 PCT/CN2013/089319 CN2013089319W WO2015024335A1 WO 2015024335 A1 WO2015024335 A1 WO 2015024335A1 CN 2013089319 W CN2013089319 W CN 2013089319W WO 2015024335 A1 WO2015024335 A1 WO 2015024335A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- display device
- liquid crystal
- transparent display
- display panel
- Prior art date
Links
Classifications
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
Definitions
- the invention belongs to the field of transparent display technologies, and in particular relates to a transparent display device. Background technique
- the transparent display technology refers to a display technology that can see the image displayed on the display panel and can see the real scene behind the display panel, and is widely used on a window, a stand, a window, and the like.
- the liquid crystal display panel 1 is used to filter light from the direction of the real scene 9 to achieve a transparent display effect; wherein, the liquid crystal display panel 1 usually includes two pairs of boxes.
- the substrate is provided with a liquid crystal layer between the two substrates, and a polarizer is respectively disposed outside the two substrates. Since the liquid crystal display panel 1 itself does not emit light, it is easy to realize transparency, and thus is particularly suitable for use in a transparent display device. However, since the liquid crystal display panel 1 does not emit light, it cannot realize color by itself, and a color film (color filter film) 21 is required, wherein the color film 21 at different pixel units (ie, sub-pixels) of the liquid crystal display panel 1 is corresponding. The color is different (for example, it is divided into red, green and blue).
- the use of the color film 21 also brings many problems: First, the liquid crystal display panel 1 itself relies on the backlight to realize the display, and the color film 21 also filters the light (the transmittance is about 20 ⁇ ) 30%), multiple filters result in a low transmittance (about 5 to 10%) of the transparent display device, which cannot be used in a dimly lit environment, thus limiting its range of use; moreover, the color film 21 is Color is achieved by filtering, so the color is realized on the premise that there are various colored light components in the source light, so in some special light environments (such as the environment with only red light), the transparent display device cannot realize color display ( Green light, blue light, etc. cannot be obtained after the red light passes through the color film 21.
- an additional light source such as a white light source
- a light for emitting light to the real scene 9 is disposed outside the two sides of the liquid crystal display panel 1. 22, but this transparent display device only It can be used in the case where the real scene 9 is in a specific position, and the application range is narrow; or a translucent light guide plate can be added as a backlight outside the light incident surface of the liquid crystal display panel 1, but the existence of the light guide plate must be true to the scene.
- the transparent display of 9 caused adverse effects.
- An object of the present invention is to provide a transparent display device having a high transmittance and a transparent display effect in view of the problem that the transmittance of the conventional transparent display device is low.
- the technical solution adopted by the present invention is a transparent display device including a liquid crystal display panel without a color film, the liquid crystal display panel including a plurality of pixel units for performing display, and the transparent display device
- the method further includes: a plurality of light emitting units disposed outside the light incident surface of the liquid crystal display panel, each of the light emitting units for emitting light of a corresponding color to one pixel unit, and the projection of the light emitting unit on the pixel unit is smaller than the pixel unit.
- the light-emitting unit directly emits light of a desired color to each pixel unit, so that a color film is not required, so that the overall transmittance is high, up to 20-30%, and can be in a dark environment.
- the light emitted by the real scene can also pass through the display panel from the periphery of the light-emitting unit, thereby also achieving a transparent display effect; in addition, due to the transparency of the present invention
- the light for display in the display device mainly comes from the light-emitting unit instead of the ambient light, so that it can also perform normal display when the ambient light is not suitable (for example, monochromatic light).
- the light emitting unit is an LED light source.
- the projection of the light emitting unit on the pixel unit is located at the center of the pixel unit.
- the transparent display device further includes: a light-emitting drive circuit for independently controlling the amount of light emitted by each of the light-emitting units.
- the light emitting driving circuit is a thin film transistor array driving circuit.
- the transparent display device further includes: a transparent carrier substrate disposed outside the light incident surface of the liquid crystal display panel, wherein the light emitting unit is disposed on the carrier substrate.
- the carrier substrate is adhesively fixed to the light incident surface of the liquid crystal display panel.
- the light emitting unit is directly disposed on a light incident surface of the liquid crystal display panel.
- the size of the pixel unit is between 100 ⁇ 300 ⁇ and 300 ⁇ 900 ⁇ .
- the size of the projection of the light emitting unit on the pixel unit is between 80 ⁇ 80 ⁇ and 120 ⁇ 120 ⁇ .
- FIG. 1 is a schematic top plan view of a conventional transparent display device.
- Fig. 2 is a front elevational view showing the structure of a transparent display device according to Embodiment 1 of the present invention.
- Fig. 3 is a side view showing the structure of a transparent display device of Embodiment 1 of the present invention.
- Fig. 4 is a side view showing the structure of another transparent display device of Embodiment 1 of the present invention.
- the present embodiment provides a transparent display device including a liquid crystal display panel 1 without a color film and a plurality of light emitting units 3 disposed outside the light incident surface of the liquid crystal display panel 1.
- the liquid crystal display panel 1 includes two substrates facing each other, and between the two substrates a liquid crystal layer is disposed, and polarizers are respectively disposed on the outer sides of the two substrates; at the same time, the substrate is further provided with gate lines, data lines, thin film transistors, pixel electrodes, common electrodes, common electrode lines, alignment films, black matrices, etc.
- the array structure shown since these structures are known and diverse, will not be described in detail herein.
- the color display film is not included in the liquid crystal display panel 1, that is, it can only change the brightness of the light, and cannot change the color of the light.
- the liquid crystal display panel 1 includes a plurality of pixel units 11 for performing display, and the pixel unit 11 is an area in the liquid crystal display panel 1 that allows light to pass through (except for gate lines, data lines, thin film transistors, black matrices, etc.). ), each pixel unit 11 can independently display desired content (or filter independently), so each pixel unit 11 corresponds to one sub-pixel of the transparent display device, and a plurality of sub-pixels of different colors correspond to one through the light mixing function.
- a pixel visible to the outside for example, three sub-pixels of red, blue, and green may correspond to one externally visible pixel, or four sub-pixels of red, blue, green, and yellow may correspond to an externally visible pixel, or by red, blue, or The green and white four sub-pixels correspond to an externally visible pixel, and so on, and will not be described in detail herein.
- Each of the light-emitting units 3 is for emitting light to one pixel unit 11, that is, each of the light-emitting units 3 functions as a backlight as a whole; meanwhile, each of the light-emitting units 3 emits light of a different color to the pixel unit 11, thereby realizing color display.
- it may be a group of three adjacent light-emitting units 3, respectively emitting red, blue, and green lights, and the light emitted by the three light-emitting units 3 is mixed to form a point visible on the display screen ( That is, RGB mode);
- RGB mode the light mixing modes
- each of the light-emitting units 3 can directly emit light of different colors to each of the pixel units 11, so that it functions as a backlight and a color film at the same time, so the liquid crystal display panel 1 in the transparent display device of the embodiment does not need to be
- the color film also avoids the filtering caused by the color film, so the overall transmittance is high, up to 20 ⁇ 30%, and can be used in a dark environment; meanwhile, since the color of the transparent display device is Straight by the light unit 3 It is also generated, so when the ambient light is monochromatic, it can also be used for normal color display. Meanwhile, as shown in FIG.
- the projection of the light emitting unit 3 on the pixel unit 11 is smaller than the pixel unit 11; that is, the projection of the light emitting unit 3 on the pixel unit 11 does not "fill" the pixel unit 11. Therefore, as shown in FIGS. 3 and 4, the ambient light can still enter the pixel unit 11 from the peripheral area of the light-emitting unit 3, whereby the user can see the real scene 9 through the liquid crystal display panel 1, thereby realizing transparent display.
- the projection of the light-emitting unit 3 on the pixel unit 11 is located at the center of the pixel unit 11.
- the light-emitting unit 3 corresponds to the center of the pixel unit 11
- the light energy emitted by the light-emitting unit 3 enters the pixel unit 11 most reliably, and the light from the real scene 9 is allowed to pass through the periphery thereof, so that the display effect and the transparency effect are better.
- the light unit 3 is an LED (Light Emitting Diode) light source.
- the LED light source is a commonly used light source, which can easily emit light of various colors (such as red light, blue light, green light, etc.), and has the advantages of high efficiency, long life, fast switching speed, high reliability, and the like.
- the LED light source is easy to be miniaturized.
- the projection of the light-emitting unit 3 on the pixel unit 11 is required to be smaller than that of the pixel unit 11, and the pixel unit 11 cannot be too large in size to achieve a good display effect.
- the size of the unit 3 is smaller, and the LED light source can be easily made into a small size (e.g., 100 ⁇ ⁇ 100 ⁇ ).
- the size of the pixel unit 11 is between 100 ⁇ 300 ⁇ and 300 ⁇ 900 ⁇ .
- the size of the projection of the light-emitting unit 3 on the pixel unit 11 is between 80 ⁇ m ⁇ 80 ⁇ m and 120 ⁇ ⁇ 120 ⁇ m.
- the size of the pixel unit 11 is 100 ⁇ m ⁇ 300 ⁇ m, which means that in two mutually perpendicular directions (such as the row direction and the column direction of the liquid crystal display panel 1), the maximum size of the pixel unit 11 is divided into ⁇ and 300 ⁇ , and other sizes are represented. The meaning is the same.
- the pixel unit 11 and the light-emitting unit 3 (such as the LED light source) of the above size range are relatively easy to realize, and at the same time, it can ensure good display effect and transparency effect.
- a transparent carrier substrate 4 can be disposed outside the light incident surface of the liquid crystal display panel 1, and the light emitting unit 3 is disposed on the carrier substrate 4.
- the carrier substrate 4 since there is no other structure, the design and manufacture of the light-emitting unit 3, the driving circuit, and the like are relatively simple. At the same time, in order to ensure the transmission of ambient light energy, the carrier substrate 4 should be transparent.
- the carrier substrate 4 is bonded and fixed to the light-emitting surface of the liquid crystal display panel 1, and the carrier substrate 4 is bonded to the liquid crystal display panel 1 by, for example, an adhesive 5 located at the edge portion of the carrier substrate 4.
- the reason why the bonding and fixing is preferred is that each of the light-emitting units 3 must be located just after the pixel unit 11 corresponding thereto, and the size of the pixel unit 11 is small, so if the carrier substrate 4 is fixed by means of snapping or the like, As long as a small relative displacement between the carrier substrate 4 and the liquid crystal display panel 1 occurs due to deformation of the snap-fit structure or the like, the display result may be adversely affected; and the carrier substrate 4 may be accurately mounted by means of adhesive bonding. It is relatively fixed to the liquid crystal display panel 1 to prevent displacement between the two.
- the light emitting unit 3 can also be directly disposed on the light incident surface of the liquid crystal display panel 1. In this way, it is not necessary to provide a carrier substrate, and the product structure can be made more compact; however, since the outer side of the liquid crystal display panel 1 is a polarizer, it is difficult to set a circuit thereon.
- the transparent display device further includes an illumination driving circuit for independently controlling the amount of illumination of each of the light-emitting units 3.
- the driving circuit can be preferably provided on the carrier substrate 4.
- each of the light-emitting units 3 can emit only light of constant brightness, and the displayed content is completely controlled by the liquid crystal display panel 1.
- the amount of illumination of each of the light-emitting units 3 can also be independently controlled, that is, the display can be controlled by adjusting the amount of light emitted by each of the light-emitting units 3, and the method of controlling the display by the light-emitting unit 3 and the liquid crystal display panel 1 Can make the display more flexible.
- the amount of light emitted by the light-emitting unit 3 can be reduced, thereby reducing energy consumption; for example, when the display content is dark, the transmittance of the liquid crystal display panel 1 is low, so that the real scene 9 Bright The degree is also lowered, and if the amount of light emitted from the light-emitting unit 3 is lowered and the transmittance of the liquid crystal display panel 1 is increased at the same time, the real scene 9 can be made clearer while the display content is unchanged.
- the above illumination driving circuit is a thin film transistor array driving circuit.
- the thin film transistor array driving circuit refers to an active array driving circuit composed of a gate line, a data line, a thin film transistor, or the like, which is widely used in a liquid crystal display panel, an LED (OLED) display panel, etc., and can be easily
- the current, voltage, and the like at each point in the array are controlled so that it can be used to independently control each of the light-emitting units 3. Since the specific structure of the thin film transistor array driving circuit is known and diverse, it will not be described in detail herein. It is to be understood that the above embodiments are merely exemplary embodiments employed to explain the principles of the invention, but the invention is not limited thereto.
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
一种透明显示装置,包括无彩膜的液晶显示面板(1)和设于液晶显示面板(1)入光面外的多个发光单元(3)。液晶显示面板(1)包括多个用于进行显示的像素单元(11),每个发光单元(3)用于向一个像素单元(11)发出相应颜色的光,且所述发光单元(3)在像素单元(11)上的投影小于像素单元(11)。该透明显示装置可解决现有的透明显示装置透过率很低的问题。
Description
透明显示装置 技术领域
本发明属于透明显示技术领域, 具体涉及透明显示装置。 背景技术
透明显示技术是指既能看到显示面板所显示的图像、 又能看 到显示面板后的真实景物的显示技术, 其被广泛用于橱窗、 展台、 车窗等之上。
如图 1 所示, 在一种透明显示装置中, 使用液晶显示面板 1 对来自真实景物 9方向的光进行滤光, 从而达到透明显示的效果; 其中, 液晶显示面板 1 通常包括两块对盒的基板, 两基板间设有 液晶层, 两基板外侧分别设有一块偏光片。 由于液晶显示面板 1 本身不发光, 故其易于实现透明, 因此特别适用于透明显示装置 中。 但同样由于液晶显示面板 1不发光, 故其本身不能实现彩色, 而需要设置彩膜 (彩色滤光膜 )21 , 其中, 对应液晶显示面板 1不同 像素单元 (即子像素)处的彩膜 21的颜色不同(如分为红绿蓝三色)。
但在透明显示装置中, 彩膜 21的使用也带来了许多问题: 首 先, 液晶显示面板 1本身就是依靠背光源实现显示的, 而彩膜 21 也会过滤光线 (其透过率约 20~30%), 多次滤光导致透明显示装置 的整体透过率很低 (约 5~10%),在光线较暗的环境下无法使用, 因 此限制了其使用范围; 而且, 彩膜 21是通过滤光实现彩色的, 故 其实现彩色的前提是来源光中有各种彩色光成分, 因此在某些特 殊的光环境下 (如只有红光的环境),透明显示装置不能实现彩色显 示(因红光经彩膜 21后也不能得到绿光、 蓝光等)。
为克服以上问题, 通常做法是在透明显示装置中设置额外的 光源 (如白光光源), 例如可如图 1所示, 在液晶显示面板 1的两侧 面外设置用于向真实景物 9发光的灯 22, 但这种透明显示装置只
能用于真实景物 9处于特定位置的情况, 适用范围窄; 或者, 也 可在液晶显示面板 1的入光面外增加半透明的导光板作为背光源, 但导光板的存在必定会对真实景物 9的透明显示造成不良影响。
可见, 现有技术中对于因彩膜导致透明显示装置透过率很低 的问题没有很好的解决办法。 发明内容
本发明的目的是针对现有的透明显示装置透过率很低的问 题, 提供一种透过率高且透明显示效果好的透明显示装置。
为了实现上述目的, 本发明所采用的技术方案是一种透明显 示装置, 其包括无彩膜的液晶显示面板, 所述液晶显示面板包括 多个用于进行显示的像素单元, 所述透明显示装置还包括: 设于 液晶显示面板入光面外的多个发光单元, 每个发光单元用于向一 个像素单元发出相应颜色的光, 且所述发光单元在像素单元上的 投影小于像素单元。
本发明的透明显示装置中有发光单元直接向各像素单元发出 所需颜色的光, 故不需要彩膜, 由此其整体透过率高, 可达 20-30%, 可在较暗的环境中使用; 同时, 由于发光单元在像素单 元上的投影小于像素单元, 故由真实景物发出的光也可从发光单 元周边通过显示面板, 从而也可实现透明显示效果; 另外, 由于 本发明的透明显示装置中用于显示的光主要来自发光单元而非环 境光, 因此当环境光不合适 (如为单色光)时其也可进行正常的显 示。
优选的是, 所述发光单元为 LED光源。
优选的是, 所述发光单元在像素单元上的投影位于像素单元 的中心。
优选的是, 所述透明显示装置还包括: 用于独立控制各发光 单元的发光量的发光驱动电路。
进一步优选的是, 所述发光驱动电路为薄膜晶体管阵列驱动 电路。
优选的是, 所述透明显示装置还包括: 透明的承载基板, 其 设于液晶显示面板的入光面外, 所述发光单元设于承载基板上。
优选的是, 所述承载基板粘结固定在液晶显示面板的入光面 上。
优选的是,所述发光单元直接设在液晶显示面板的入光面上。 优选的是, 所述像素单元的尺寸在 100μπιχ300μιη 至 300μπιχ900μιη之间。
进一步优选的是, 所述发光单元在像素单元上的投影的尺寸 在 80μπιχ80μιη至 120μπιχ 120μιη之间。 附图说明
图 1为现有的透明显示装置的俯视结构示意图。
图 2为本发明的实施例 1的一种透明显示装置的正视结构示 意图。
图 3为本发明的实施例 1的一种透明显示装置的侧视结构示 意图。
图 4为本发明的实施例 1的另一种透明显示装置的侧视结构 示意图。
附图标记: 1、 液晶显示面板; 11、 像素单元; 21、 彩膜; 22、 灯; 3、 发光单元; 4、 承载基板; 5、 粘结剂; 9、 真实景物。 具体实施方式
为使本领域技术人员更好地理解本发明的技术方案, 下面结 合附图和具体实施方式对本发明作进一步详细描述。 实施例 1 :
如图 2至图 4所示, 本实施例提供了一种透明显示装置, 其 包括无彩膜的液晶显示面板 1和设于液晶显示面板 1入光面外的 多个发光单元 3。
其中, 液晶显示面板 1 包括两块相互对盒的基板, 两基板间
设有液晶层, 两基板外侧分别设有偏光片; 同时, 基板上还设有 栅极线、 数据线、 薄膜晶体管、 像素电极、 公共电极、 公共电极 线、 配向膜、 黑矩阵等用于进行显示的阵列结构, 由于这些结构 是已知且多样的, 故在此不再详细描述。 但是, 该液晶显示面板 1 中不包括彩膜, 也就是说其只能改变光的亮度, 而不能够改变光 的颜色。
液晶显示面板 1包括多个用于进行显示的像素单元 11 , 像素 单元 11是液晶显示面板 1 中允许光线透过的区域 (除栅极线、 数 据线、 薄膜晶体管、 黑矩阵等之外的区域), 每个像素单元 11 可 独立显示所需内容 (或者说独立进行滤光), 故每个像素单元 11对 应透明显示装置的一个子像素, 多个不同颜色的子像素通过混光 作用对应一个外界可见的像素; 例如可由红色、 蓝色、 绿色三个 子像素对应一个外界可见的像素, 或由红色、 蓝色、 绿色、 黄色 四个子像素对应一个外界可见的像素, 或由红色、 蓝色、 绿色、 白色四个子像素对应一个外界可见的像素, 等等, 在此不再详细 描述。
每个发光单元 3用于向一个像素单元 11发光,即各发光单元 3 整体上起到背光源的作用; 同时, 每个发光单元 3 向像素单元 11发出不同颜色的光, 从而实现彩色显示。 例如, 可以是每三个 相邻的发光单元 3 为一组, 分别发出红色、 蓝色、 绿色的光, 而 这三个发光单元 3发出的光通过混光形成一个显示屏上可见的点 (即 RGB模式); 当然, 如果采用其他的混光模式也是可行的, 如 可以是每四个相邻的发光单元 3 为一组, 分别发出红色、 蓝色、 绿色、 黄色的光, 而这四个发光单元 3发出的光通过混光形成一 个显示屏上可见的点(即 RGBY模式), 等等。
也就是说,各发光单元 3可直接向各像素单元 11发出不同颜 色的光, 从而其同时起到背光源和彩膜的作用, 故本实施例的透 明显示装置中的液晶显示面板 1 不需要彩膜, 也就避免了因彩膜 而产生的滤光, 故其整体透过率高, 可达 20~30%, 能在较暗的环 境中使用; 同时, 由于该透明显示装置的彩色是由发光单元 3直
接产生的, 故当环境光为单色光时, 其也可用于正常的彩色显示。 同时, 如图 2所示, 发光单元 3在像素单元 11上的投影小于 像素单元 11 ; 也就是说,发光单元 3在像素单元 11上的投影并未 "占满" 像素单元 11。 因此如图 3、 图 4所示, 环境光仍可从发 光单元 3的周边区域进入像素单元 11 , 由此, 用户可透过液晶显 示面板 1看到真实景物 9, 实现了透明显示。
优选地, 如图 2所示, 发光单元 3在像素单元 11上的投影位 于像素单元 11的中心。
显然, 当发光单元 3对应像素单元 11的中心时, 其发出的光 能最可靠地进入像素单元 11 , 而其四周都允许来自真实景物 9的 光透过, 故显示效果和透明效果均较好。
优选地, 发光单元 3为 LED (发光二极管)光源。
LED光源是常用的光源, 其可很容易地发出各种不同颜色的 光 (如红光、蓝光、绿光等), 且具有效率高、寿命长、开关速度快、 可靠性高等优点。 尤其是, LED光源很易于实现小型化, 本实施 例中要求发光单元 3在像素单元 11上的投影小于像素单元 11 ,而 为达到良好的显示效果, 像素单元 11的尺寸不能太大, 因此发光 单元 3的尺寸就要更小, 而 LED光源可很容易地被制成很小的尺 寸(如 100μπιχ100μιη)。
优选地, 像素单元 11 的尺寸在 100μπιχ300μιη 至 300μπιχ900μιη之间。
进一步优选地,发光单元 3在像素单元 11上的投影的尺寸在 80μπιχ80μιη至 120μπιχ 120μιη之间。
其中, 像素单元 11的尺寸为 100μπιχ300μιη是指在两个相互 垂直的方向(如液晶显示面板 1 的行方向和列方向)上, 像素单元 11的最大尺寸分为别为 ΙΟΟμπι和 300μπι,其他尺寸表示的意义与 此相同。
经研究发现, 在现有条件下, 以上尺寸范围的像素单元 11和 发光单元 3(如 LED光源)是比较容易实现的, 同时其又能保证良 好的显示效果和透明效果。
其中, 要将发光单元 3设在液晶显示面板 1的入光面外有多 种不同的方式。
按照一种优选方式, 如图 3所示, 可在液晶显示面板 1的入 光面外设置透明的承载基板 4, 而发光单元 3设于承载基板 4上。
在专门的承载基板 4上, 由于没有其他的结构, 故发光单元 3、 驱动电路等的设计、 制造均比较筒单。 同时为了保证环境光能 透过, 承载基板 4应是透明的。
优选地,承载基板 4粘结固定在液晶显示面板 1的出光面上, 例如通过位于承载基板 4边缘部的粘结剂 5将承载基板 4与液晶 显示面板 1 粘结。 之所以优选采用粘结固定的方式, 是因为每个 发光单元 3必须正好位于与其对应的像素单元 11后, 而像素单元 11 的尺寸很小, 故如果采用卡接等方式固定承载基板 4, 则只要 因为卡接结构变形等原因造成承载基板 4与液晶显示面板 1之间 发生很小的相对位移, 就会对显示结果产生不良影响; 而采用粘 结固定的方式可很准确地将承载基板 4与液晶显示面板 1相对固 定, 防止二者之间产生位移。
当然, 如图 4所示, 作为另一种优选方式, 发光单元 3也可 直接设在液晶显示面板 1 的入光面上。 这种方式不必设置承载基 板, 可使产品结构更筒单; 但是由于液晶显示面板 1 的外侧为偏 光片, 故在其上设置电路的难度较高。
优选地, 透明显示装置还包括用于独立控制各发光单元 3的 发光量的发光驱动电路。在透明显示装置设置有透明的承载基板 4 的情况下, 该驱动电路可优选地设于上述承载基板 4上。
也就是说, 各发光单元 3可以只发出亮度不变的光, 而完全 由液晶显示面板 1来控制所显示的内容。但优选地,各发光单元 3 的发光量也可以被分别独立地控制,即也可通过调整各发光单元 3 的发光量来控制显示, 这种发光单元 3和液晶显示面板 1共同控 制显示的方法可使得显示更加灵活。 例如, 若显示内容较暗时, 可降低发光单元 3 的发光量, 从而降低能耗; 再如, 当显示内容 较暗时, 液晶显示面板 1的透过率较低, 故会使真实景物 9的亮
度也降低, 而此时若降低发光单元 3 的发光量并同时提高液晶显 示面板 1 的透过率, 则可在显示内容不变的情况下使真实景物 9 更加清晰。
优选地, 以上发光驱动电路为薄膜晶体管阵列驱动电路。 薄膜晶体管阵列驱动电路是指由栅极线、 数据线、 薄膜晶体 管等组成的有源阵列驱动电路, 其被广泛用于液晶显示面板、 发 光二极管 (OLED)显示面板等之中,可容易地对阵列中各点的电流、 电压等进行控制, 因此其可被用于独立控制各发光单元 3。 由于薄 膜晶体管阵列驱动电路的具体结构是已知且多样的, 故在此不再 详细描述。 可以理解的是, 以上实施方式仅仅是为了说明本发明的原理 而采用的示例性实施方式, 然而本发明并不局限于此。 本发明的 实施例可以省略上述技术特征中的一些技术特征, 仅解决现有技 术中存在的部分技术问题, 而且, 所公开的技术特征可以进行任 意组合。 对于本领域内的普通技术人员而言, 在不脱离本发明的 精神和实质的情况下, 可以做出各种变型和改进, 这些变型和改 进也视为本发明的保护范围。 本发明的保护范围由所附权利要求 限定。
Claims
1. 一种透明显示装置, 其特征在于, 包括无彩膜的液晶显示 面板, 所述液晶显示面板包括多个用于进行显示的像素单元, 所 述透明显示装置还包括:
设于液晶显示面板入光面外的多个发光单元, 每个发光单元 用于向一个像素单元发出相应颜色的光, 且所述发光单元在像素 单元上的投影小于像素单元。
2. 根据权利要求 1所述的透明显示装置, 其特征在于, 所述发光单元为 LED光源。
3. 根据权利要求 1所述的透明显示装置, 其特征在于, 所述发光单元在像素单元上的投影位于像素单元的中心。
4. 根据权利要求 1所述的透明显示装置, 其特征在于, 还包 括:
用于独立控制各发光单元的发光量的发光驱动电路。
5. 根据权利要求 4所述的透明显示装置, 其特征在于, 所述发光驱动电路为薄膜晶体管阵列驱动电路。
6. 根据权利要求 1所述的透明显示装置, 其特征在于, 还包 括:
透明的承载基板, 其设于液晶显示面板的入光面外, 所述发 光单元设于承载基板上。
7. 根据权利要求 6所述的透明显示装置, 其特征在于, 所述承载基板粘结固定在液晶显示面板的入光面上。
8. 根据权利要求 1所述的透明显示装置, 其特征在于, 所述发光单元直接设在液晶显示面板的入光面上。
9. 根据权利要求 1至 8中任意一项所述的透明显示装置, 其 特征在于,
所述像素单元的尺寸在 100μπιχ300μιη至 300μπιχ900μιη之 间。
10. 根据权利要求 9所述的透明显示装置, 其特征在于, 所述发光单元在像素单元上的投影的尺寸在 80μπιχ80μιη 至
120μπιχ 120μιη之间。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310364897.1A CN103439832B (zh) | 2013-08-20 | 2013-08-20 | 透明显示装置 |
CN201310364897.1 | 2013-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015024335A1 true WO2015024335A1 (zh) | 2015-02-26 |
Family
ID=49693534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/089319 WO2015024335A1 (zh) | 2013-08-20 | 2013-12-13 | 透明显示装置 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN103439832B (zh) |
WO (1) | WO2015024335A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103439832B (zh) * | 2013-08-20 | 2016-03-23 | 京东方科技集团股份有限公司 | 透明显示装置 |
CN104391398A (zh) * | 2014-11-07 | 2015-03-04 | 深圳市华星光电技术有限公司 | 显示装置及背光模组 |
CN106959544B (zh) * | 2016-01-08 | 2020-12-04 | 京东方科技集团股份有限公司 | 一种背光模组、液晶显示器及其制备工艺 |
CN107741671B (zh) * | 2017-11-03 | 2021-02-26 | 上海天马微电子有限公司 | 一种显示装置及其制备方法 |
CN109143683A (zh) * | 2018-09-26 | 2019-01-04 | 深圳市华星光电半导体显示技术有限公司 | 一种显示装置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000193970A (ja) * | 1998-12-25 | 2000-07-14 | Casio Comput Co Ltd | 液晶表示装置 |
US20020191947A1 (en) * | 2001-06-15 | 2002-12-19 | Ngk Insulators, Ltd. | Display device |
CN1875391A (zh) * | 2003-11-06 | 2006-12-06 | 皇家飞利浦电子股份有限公司 | 可转换透明显示器 |
CN101557533A (zh) * | 2008-04-09 | 2009-10-14 | 东元奈米应材股份有限公司 | 透视型显示装置 |
CN102707487A (zh) * | 2012-06-04 | 2012-10-03 | 青岛海信电器股份有限公司 | 透明显示装置及具有透明显示装置的电子设备 |
CN102944943A (zh) * | 2012-11-09 | 2013-02-27 | 京东方科技集团股份有限公司 | 量子点彩色滤光片、液晶面板及显示装置 |
CN202813107U (zh) * | 2012-10-12 | 2013-03-20 | 京东方科技集团股份有限公司 | 一种背光源及液晶显示器 |
CN103439832A (zh) * | 2013-08-20 | 2013-12-11 | 京东方科技集团股份有限公司 | 透明显示装置 |
-
2013
- 2013-08-20 CN CN201310364897.1A patent/CN103439832B/zh active Active
- 2013-12-13 WO PCT/CN2013/089319 patent/WO2015024335A1/zh active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000193970A (ja) * | 1998-12-25 | 2000-07-14 | Casio Comput Co Ltd | 液晶表示装置 |
US20020191947A1 (en) * | 2001-06-15 | 2002-12-19 | Ngk Insulators, Ltd. | Display device |
CN1875391A (zh) * | 2003-11-06 | 2006-12-06 | 皇家飞利浦电子股份有限公司 | 可转换透明显示器 |
CN101557533A (zh) * | 2008-04-09 | 2009-10-14 | 东元奈米应材股份有限公司 | 透视型显示装置 |
CN102707487A (zh) * | 2012-06-04 | 2012-10-03 | 青岛海信电器股份有限公司 | 透明显示装置及具有透明显示装置的电子设备 |
CN202813107U (zh) * | 2012-10-12 | 2013-03-20 | 京东方科技集团股份有限公司 | 一种背光源及液晶显示器 |
CN102944943A (zh) * | 2012-11-09 | 2013-02-27 | 京东方科技集团股份有限公司 | 量子点彩色滤光片、液晶面板及显示装置 |
CN103439832A (zh) * | 2013-08-20 | 2013-12-11 | 京东方科技集团股份有限公司 | 透明显示装置 |
Also Published As
Publication number | Publication date |
---|---|
CN103439832B (zh) | 2016-03-23 |
CN103439832A (zh) | 2013-12-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2020258649A1 (zh) | 一种显示装置 | |
KR102179011B1 (ko) | 표시 장치 | |
US10197852B2 (en) | Dual-mode liquid crystal display device, color filter substrate and array substrate | |
WO2020220578A1 (zh) | 显示面板及显示装置 | |
US11024700B2 (en) | Display device | |
WO2020220576A1 (zh) | 显示面板及显示装置 | |
WO2016026181A1 (zh) | 彩色液晶显示模组结构及其背光模组 | |
WO2013135077A1 (zh) | 液晶显示面板及其制作方法、液晶显示器 | |
US20170004782A1 (en) | Liquid crystal display device | |
WO2015024335A1 (zh) | 透明显示装置 | |
US11199739B2 (en) | Color film substrate, display panel, backlight module, display device and display system | |
KR20110061914A (ko) | 액정표시모듈 | |
WO2015078026A1 (zh) | 彩色液晶显示面板 | |
US20200081303A1 (en) | Liquid crystal display panel, liquid crystal display device and method of controlling gray scale of liquid crystal display device | |
US20190245006A1 (en) | Micro led display device | |
JP2015191053A (ja) | 液晶表示装置 | |
JP2006127798A (ja) | 照明装置および液晶表示装置 | |
KR20110037331A (ko) | 액정표시장치 | |
US20140355307A1 (en) | Display apparatus | |
TW201608319A (zh) | 顯示面板及使用其之顯示裝置 | |
JP2017134138A5 (zh) | ||
WO2015078027A1 (zh) | 彩色液晶显示面板 | |
KR102084718B1 (ko) | 백라이트 유닛 및 이를 포함하는 표시 장치 및 그 제조 방법 | |
US20160365047A1 (en) | Pixel structure and liquid crystal display panel | |
KR20140006252A (ko) | 에어 제로 갭 본딩을 이용한 패널 일체형 lcd 모듈 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13891789 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM F1205A DATED 11.07.2016) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13891789 Country of ref document: EP Kind code of ref document: A1 |