WO2020151434A1 - 显示面板及其驱动方法和显示系统 - Google Patents
显示面板及其驱动方法和显示系统 Download PDFInfo
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- WO2020151434A1 WO2020151434A1 PCT/CN2019/127128 CN2019127128W WO2020151434A1 WO 2020151434 A1 WO2020151434 A1 WO 2020151434A1 CN 2019127128 W CN2019127128 W CN 2019127128W WO 2020151434 A1 WO2020151434 A1 WO 2020151434A1
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- refractive index
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Definitions
- the present disclosure relates to the field of display technology, and in particular to a display panel, a driving method thereof, and a display system.
- display can be achieved by controlling the deflection of liquid crystal molecules, and the gray scale of the display screen can be controlled.
- a liquid crystal spatial light modulator can be used to load the holographic interference image.
- a display panel in one aspect, includes a plurality of sub-pixels, and at least one sub-pixel of the plurality of sub-pixels includes: a first electrode, a light modulation structure arranged on one side of the first electrode, and a The second electrode on one side of the electrode.
- the light modulation structure includes a refractive index adjustment layer and a light adjustment layer. The refractive index of the refractive index adjustment layer can be changed under the action of the electric field between the first electrode and the second electrode.
- the dimming layer is located between the refractive index adjustment layer and the first electrode, and the dimming layer is in contact with the refractive index adjustment layer, and at least a part of the surface of the dimming layer in contact with the refractive index adjustment layer is a curved surface.
- the dimming layer includes a plurality of protrusions.
- the plurality of protrusions are distributed on the surface of the first electrode on the side close to the refractive index adjustment layer; the surface of at least one protrusion of the plurality of protrusions that contacts the refractive index adjustment layer is a curved surface.
- the plurality of protrusions are arranged in an array, and the outer dimensions of the plurality of protrusions are the same.
- the plurality of protrusions are arranged in a matrix, and the outer dimensions of the plurality of protrusions are the same.
- the surface of at least one of the protrusions in contact with the refractive index adjustment layer is a hemispherical surface.
- the material constituting the refractive index adjustment layer includes an electro-optic crystal material.
- each sub-pixel of the plurality of sub-pixels includes a first electrode, a light modulation structure, and a second electrode; all the second electrodes included in the plurality of sub-pixels are connected as a whole layer .
- the display panel further includes: a base substrate; and, a plurality of gate lines and a plurality of data lines on the base substrate.
- the plurality of gate lines and the plurality of data lines cross vertically and horizontally to define a plurality of sub-pixel regions for accommodating the plurality of sub-pixels.
- the display panel further includes a transistor disposed in each sub-pixel region of the plurality of sub-pixel regions, the gate of the transistor is electrically connected to the corresponding gate line of the plurality of gate lines, and the transistor The first electrode of the transistor is electrically connected to the corresponding data line of the plurality of data lines, and the second electrode of the transistor is electrically connected to the first electrode in the sub-pixel area where it is located.
- the display panel further includes a black matrix.
- the black matrix is located on the side of the second electrode away from the first electrode; wherein the black matrix covers at least a part of the transistor; and/or the black matrix covers at least a part of the plurality of gate lines and the plurality of data lines At least part of it.
- the display panel further includes a power supply electrode, the power supply electrode is electrically connected to the second electrode, and the power supply electrode is configured to provide a common voltage to the second electrode.
- the display panel further includes a color filter layer.
- the color filter layer is disposed on the side of the second electrode away from the first electrode; or, the color filter layer is disposed on the side of the first electrode away from the second electrode.
- the color filter layer covers the light modulation structure in the display panel.
- the driving method includes: inputting a pixel voltage to a first electrode and simultaneously inputting a common voltage to a second electrode. Under the action of the electric field between the electrode and the second electrode, the refractive index of the refractive index adjustment layer is controlled to change, so that the corresponding sub-pixels in the display panel can realize different grayscale display.
- the refractive index of the refractive index adjustment layer decreases with the increase of the pixel voltage; in the direction of the electric field, when the second electrode points to the first electrode and the common voltage is unchanged, the refractive index of the refractive index adjustment layer increases with the increase of the pixel voltage.
- a display system in another aspect, includes: the display panel according to any one of claims 1 to 12; and a light source configured to provide an illumination beam to the display panel.
- the light source is arranged on one side of the display panel, and the light emitting surface of the light source is parallel to the display surface of the display panel.
- the light source is located on the side of the first electrode away from the second electrode.
- the light source is arranged on one side of the display panel, and the plane where the light-emitting surface of the light source is located intersects the plane where the display surface of the display panel is located.
- the display system also includes a half mirror and a reflecting mirror arranged on the light exit path of the light source, and the half mirror is located between the reflecting mirror and the light source. The half mirror is configured to transmit the light emitted from the light source, so that the light is directed to the reflecting mirror, and the light reflected by the reflecting mirror is reflected to the display panel.
- the half mirror is located on the side of the first electrode away from the second electrode; the display system further includes a lens, and the lens is disposed on the side of the half mirror away from the display panel.
- the display system includes a processor, and the processor is electrically connected to the display panel.
- the processor is configured to output a display signal corresponding to the display image to the display panel.
- FIG. 1 is a schematic diagram of dividing a plurality of sub-pixel regions of a display panel according to some embodiments of the present disclosure
- FIG. 2 is a partial structure diagram of a display panel provided according to some embodiments of the present disclosure.
- Fig. 3 is a schematic diagram of light propagation in the dimming layer in Fig. 2;
- Fig. 4a is another schematic diagram of light propagation in the dimming layer in Fig. 2;
- FIG. 4b is another schematic diagram of light propagation of the light-adjusting layer in FIG. 2;
- Fig. 4c is another schematic diagram of light propagation in the dimming layer in Fig. 2;
- Fig. 5 is a schematic diagram of a holographic interference image provided according to some embodiments of the present disclosure.
- Fig. 6 is a structural diagram of the light modulation structure in Fig. 2;
- FIG. 7 is another schematic diagram of sub-pixel division of a display panel according to some embodiments of the present disclosure.
- FIG. 8 is a structural diagram of a display panel provided according to some embodiments of the present disclosure.
- FIG. 9a is a schematic diagram of a display mode of the display panel shown in FIG. 8;
- FIG. 9b is a schematic diagram of another display mode of the display panel shown in FIG. 8;
- FIG. 9c is a schematic diagram of still another display mode of the display panel shown in FIG. 8;
- FIG. 10 is a structural diagram of a display system according to some embodiments of the present disclosure.
- FIG. 11 is a structural diagram of another display system according to some embodiments of the present disclosure.
- FIG. 12 is a structural diagram of still another display system according to some embodiments of the present disclosure.
- FIG. 13 is a structural diagram of yet another display system provided according to some embodiments of the present disclosure.
- first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.
- At least one of A, B, and C has the same meaning as “at least one of A, B, or C", and both include the following combinations of A, B, and C: only A, only B, only C, A and B
- “A and/or B” includes the following three combinations: A only, B only, and the combination of A and B.
- the holographic display device uses a liquid crystal spatial light modulator to load the holographic interference image.
- the liquid crystal molecules in the liquid crystal spatial light modulator are prone to polarization, which causes the display quality of the holographic display device to be easily affected, thereby reducing the display effect of the holographic display device.
- the display panel 01 has a plurality of sub-pixel regions P for accommodating a plurality of sub-pixels.
- the multiple sub-pixel regions P may be defined by multiple gate lines and multiple data lines that cross vertically and horizontally in the display panel 01, and each sub-pixel region P is used to accommodate one sub-pixel.
- the above-mentioned display panel 01 further includes a plurality of sub-pixels 10, and at least one sub-pixel 10 of the plurality of sub-pixels 10 includes a first electrode 11, a light modulation structure 20 disposed on one side of the first electrode 11, And the second electrode 12 disposed on the side of the light modulation structure 20 away from the first electrode 11.
- each of the above-mentioned multiple sub-pixels 10 includes a first electrode, a light modulation structure, and a second electrode, that is, the display panel 10 may include a plurality of Each of the second electrodes 12 is located in a sub-pixel 10, and the second electrode 12 covers the light modulation structure 20 located in the same sub-pixel 10. At this time, during the display process, the voltages applied by the second electrodes 12 located in different sub-pixels 10 may be the same or different.
- each sub-pixel of the plurality of sub-pixels 10 includes a first electrode, a light modulation structure, and a second electrode, and all the second electrodes included in the plurality of sub-pixels are connected as one Whole floor.
- the light modulation structure 20 included in a plurality of sub-pixels may share a second electrode layer (the second electrode layer is connected by a plurality of second electrodes 12 to form a whole layer), that is, in this case, the The second electrode layer can cover all the light modulation structures 20 in the display panel 01.
- the above-mentioned first electrode 11 is called a pixel electrode, and the second electrode 12 is called a common electrode.
- the material constituting the first electrode 11 and the second electrode 12 may be a transparent conductive material.
- ITO indium Tin Oxide
- IZO indium zinc oxide
- the light modulation structure 20 includes a light modulation layer 201 and a refractive index adjustment layer 202.
- the refractive index adjustment layer 202 is located between the first electrode 11 and the second electrode 12.
- the refractive index of the refractive index adjustment layer 202 can change its refractive index under the action of the electric field between the first electrode 11 and the second electrode 12. That is, when a voltage is applied to the first electrode 11 and the second electrode 12, an electric field is generated between the first electrode 10 and the second electrode 12. Under the action of the electric field, the refractive index of the refractive index adjustment layer 202 can follow the The size and direction of the electric field change.
- the material constituting the aforementioned refractive index adjustment layer 202 includes an electro-optic crystal material. Under the action of an external electric field, the refractive index of the electro-optic crystal material can change.
- At least a part of the surface A of the dimming layer 201 in contact with the refractive index adjustment layer 202 is a curved surface, so that the light can be adjusted on the surface A of the dimming layer 201 and the refractive index adjustment layer 202.
- the incident angle ⁇ is a part of the surface A of the dimming layer 201 in contact with the refractive index adjustment layer 202.
- At least a part of the surface A of the dimming layer 201 in contact with the refractive index adjustment layer 202 is curved. In this case, it is incident on the contact surface A of the dimming layer 201 and the refractive index adjustment layer 202 at different positions. Because the direction of the surface normal of the light is different, the incident angle ⁇ 1 and ⁇ 2 of the light are also different.
- the display panel 01 has a light modulation structure 20 that includes a dimming layer 201 and a refractive index adjustment layer 202 that are in contact with each other.
- the refractive index of the refractive index adjustment layer 202 can follow the change of the electric field between the first electrode 11 and the second electrode 12.
- the total reflection angle ⁇ of the light on the surface A where the light adjusting layer 201 and the refractive index adjusting layer 202 are in contact is related to the refractive index of the refractive index adjusting layer 202. In this way, by changing the electric fields of the first electrode 11 and the second electrode 12, the purpose of adjusting the total reflection angle ⁇ of the light on the surface A of the light modulating layer 201 in contact with the refractive index adjusting layer 202 can be achieved.
- the refractive index of the dimming layer 201 is n 1 ; under the action of the electric field between the first electrode 11 and the second electrode 12, the refractive index of the refractive index adjustment layer 202 is n 2 .
- the above-mentioned total reflection angle ⁇ is:
- the dimming layer 201 can affect the light incident on the contact surface A of the dimming layer and the refractive index adjustment layer.
- the incident angle ⁇ is adjusted.
- the incident angles of light rays at all the surfaces A where the light-adjusting layer 201 and the refractive index adjustment layer 202 are in contact such as the incident angles ⁇ 1 and ⁇ in FIG. 3 2 may be greater than the above-mentioned total reflection angle ⁇ .
- the light incident to the light modulation structure 20 is all reflected as shown in FIG. 4a.
- the refractive index n 2 of the refractive index adjustment layer 202 can approach 0. Therefore, the above-mentioned total reflection angle ⁇ is the smallest The value can also approach 0 degrees.
- the refractive index n 2 of the refractive index adjustment layer 202 is increased by changing the electric field between the first electrode 11 and the second electrode 12, thereby increasing the above-mentioned total reflection angle ⁇ , the incident angle ⁇ 1 > ⁇ ; The angle ⁇ 2 ⁇ .
- the light incident on the surface A at the incident angle ⁇ 1 is totally reflected in the light adjustment layer 201, and the light incident on the surface A at the incident angle ⁇ 2 can pass through the light adjustment layer.
- 201 is incident on the refractive index adjustment layer 202.
- the incident angle ⁇ 1 and the incident angle The angle ⁇ 2 is all smaller than ⁇ .
- the incident angle [theta] 1 of the surface A to light is incident at an incident angle [theta] 1 of the surface A to light, and the light incident at an incident angle ⁇ 2 of the surface A to be able to average the refractive index adjusting layer 202 is incident through the light control layer 201 .
- the total reflection angle ⁇ may reach the maximum value, which is 90 degrees.
- the display panel 01 can display images with different gray levels.
- the aforementioned display panel 01 can be used to load holographic interference fringes with different gray levels, such as the holographic interference fringe shown in FIG. 5.
- the display device adopting the above-mentioned display panel 01 can display holographic images.
- the display device does not need to load the holographic interference fringes through the liquid crystal spatial light modulator with liquid crystal molecules, so the polarization of the liquid crystal molecules can be avoided. The resulting display quality degradation problem.
- dimming layer 201 There are many structural forms of the dimming layer 201. The structure of the dimming layer 201 will be described in detail below with reference to the drawings and some examples.
- the dimming layer 201 includes a plurality of protrusions 2010.
- the above-mentioned multiple protrusions 2010 are distributed on the surface of the first electrode 11 close to the refractive index adjustment layer 202.
- the surface A of the protrusion 2010 in contact with the refractive index adjustment layer 202 is a curved surface.
- the dimming layer 201 includes a plurality of protrusions 2010, the area of the surface A of the dimming layer 201 in contact with the refractive index adjustment layer 202 can be increased through the plurality of protrusions 2010, and the incident light can be The above-mentioned reflection and/or transmission phenomenon occurs on the surface of each protrusion 2010 in contact with the refractive index adjustment layer 202, thereby improving the light extraction efficiency and uniformity of the light emitted by the light modulation structure 20.
- the present disclosure does not limit the method of manufacturing the dimming layer 201 composed of a plurality of protrusions 2010.
- an inkjet printing method may be used to fabricate the above-mentioned multiple protrusions 2010 on the surface of the first electrode 11 close to the second electrode 12.
- the plurality of protrusions 2010 are arranged in an array (such as a matrix), and the outer dimensions of any two protrusions 2010 are the same.
- the manufacturing process of the dimming layer 201 can be simplified, without additional adjustment of manufacturing parameters, so as to manufacture bumps 2010 of different specifications.
- the plurality of protrusions 2010 arranged in a matrix can make the light emitted by the light modulation structure 20 more uniform.
- the surface of each of the above-mentioned protrusions in contact with the refractive index adjustment layer 202 is a hemispherical surface. This can increase the amount of light incident on the light-adjusting layer 201 at the position of each protrusion 2010.
- the display panel 01 further includes a base substrate 100, and is located on the base substrate 100 Multiple gate lines (GL) and multiple data lines (DL) crossing horizontally and vertically.
- the plurality of gate lines GL and the data line DL cross to define the plurality of sub-pixel regions P.
- the above-mentioned display panel 01 further includes a transistor T located in each sub-pixel region P, the gate (g) of the transistor is electrically connected to the gate line GL, and the first electrode (for example, the source s) of the transistor is connected to the data
- the line DL is electrically connected, and the second electrode (for example, the drain d) of the transistor is electrically connected to the first electrode 11.
- the surface of the gate g of the transistor T is covered with a gate insulating layer 102, and there is an active layer 103 between the gate insulating layer and the source s and drain d of the transistor T.
- the surfaces of the source s and the drain d of the transistor T are covered with a first insulating layer 104, and a second insulating layer 105 is provided between the refractive index adjustment layer 202 and the second electrode 12.
- the first electrode 11, the dimming layer 201 and the refractive index adjustment layer 202 are located between the first insulating layer 104 and the second insulating layer 105.
- the gate line GL when the gate scan signal is input to the gate line GL to gate it, the gate line GL can turn on the transistor T electrically connected to it, and then the data voltage Vdata on the data line DL It can be transmitted to the first electrode 11 electrically connected to the transistor T through the turned-on transistor T, thereby charging the first electrode 11.
- the above-mentioned display panel 01 further includes a power supply electrode 30 provided in each sub-pixel 10.
- the power supply electrode 30 is electrically connected to the second electrode 12 through a via hole provided on the insulating layer.
- the power supply electrode 30 described above is used to provide a common voltage to the second electrode 12.
- the power supply electrode 30 may be the same layer and the same material as the gate g of the transistor T. In this way, the power supply electrode 30 and the transistor gate g can be fabricated at the same time through one patterning process.
- the second electrode 12 can be charged through the power supply electrode 30.
- the patterning process may include a photolithography process, or, a photolithography process and an etching step, and may also include printing, inkjet, etc. for forming predetermined patterns. Craftsmanship.
- the photolithography process refers to the process of using photoresist, mask, exposure machine, etc. to form patterns including film formation, exposure, development and other processes.
- the corresponding patterning process can be selected according to the structure formed in the present disclosure.
- the one patterning process in some embodiments of the present disclosure is an example of forming different exposed areas through a single mask exposure process, and then performing multiple etching, ashing and other removal processes on the different exposed areas to obtain the desired pattern as an example The description made.
- the above-mentioned display panel 01 further includes a cover plate 101 covering the second electrode 12.
- the material constituting the cover 101 may be transparent glass or transparent resin material.
- the above-mentioned display panel 01 further includes a black matrix 40 disposed on the side of the cover 101 close to the base substrate 100 and on the side of the second electrode 12 away from the first electrode 11.
- the black matrix 40 can cover at least a part of the transistor T.
- the orthographic projection of the black matrix 40 on the base substrate 100 may cover at least part of the orthographic projection of the active layer region of the transistor T on the base substrate 100.
- the black matrix 40 may also cover at least a part of the plurality of gate lines GL and a plurality of data At least part of the line DL.
- the display panel 01 is provided with a plurality of sub-pixels 10 on the edge of the display area, and a sealant 50 is also provided.
- the sealant 50 can isolate the display area from the non-display area.
- a color filter layer 61 is further provided in the display panel 01.
- the color filter layer 61 is disposed on the side of the second electrode 12 away from the first electrode 11; for another example, as shown in FIG. 11, the color filter layer 61 is disposed on the side of the first electrode 11. The side away from the second electrode 12.
- the color filter layer 61 covers the light modulation structure in the display panel 01, so as to filter the light transmitted or reflected by the light modulation structure, so as to realize the display of different colors, such as red, blue, or green.
- Some embodiments of the present disclosure also provide a driving method of the display panel 01 applied to any one of the above embodiments.
- the driving method includes: inputting a pixel voltage to the first electrode 11 and simultaneously inputting a common voltage to the second electrode 12, Under the action of the electric field between the first electrode 11 and the second electrode 12, the refractive index of the refractive index adjustment layer 202 is controlled to change, so that the corresponding sub-pixels in the display panel 01 realize different grayscale display.
- the refractive index of the refractive index adjustment layer 202 decreases with the increase of the pixel voltage; in the direction of the electric field When the second electrode 12 points to the first electrode 11 and the common voltage is unchanged, the refractive index of the refractive index adjustment layer 202 increases with the increase of the pixel voltage.
- the following takes the display panel 01 shown in FIG. 8 as an example to describe a part of the display mode of the display panel 01.
- the voltage applied to the first electrode 11 is +8V
- the voltage applied to the second electrode 12 is 0V.
- the refractive index n 2 of the refractive index adjustment layer 202 has a minimum value
- the total reflection angle ⁇ of the light on the surface A where the light adjustment layer 201 contacts the refractive index adjustment layer 202 has the smallest value. value. It can be understood that the value of the total reflection angle ⁇ can approach zero here.
- the light from the light source incident on the dimming layer 201 has an incident angle on the aforementioned surface A greater than the aforementioned total reflection angle ⁇ . In this way, all incident light is on the dimming layer 201.
- the surface A in contact with the refractive index adjustment layer 202 is totally reflected, so that the light adjustment layer 201 does not emit light to the refractive index adjustment layer 202.
- the light provided by the light source is all emitted from the side of the base substrate 100, and the grayscale value displayed on the display panel 01 is the largest.
- the display side when the side of the display panel 01 where the cover plate 101 opposite to the base substrate 100 is located is the display side, the light provided by the light source is reflected, so no light is emitted from the cover plate 101 side.
- the gray scale value displayed on the display panel 01 is the smallest, it is in a dark state.
- the light from the light source incident on the dimming layer 201 has an incident angle on the aforementioned surface A that is less than the aforementioned total reflection angle ⁇ , so that all incident light can pass through the dimming
- the layer 201 is incident on the refractive index adjustment layer 202.
- the side of the base substrate 100 in the display panel 01 is the display side
- the light provided by the light source passes through the dimming layer 201, so no light is emitted from the side of the base substrate 100.
- the gray scale value displayed on the display panel 01 is the smallest and is in a dark state.
- the display panel 01 when the side where the cover 101 is located in the display panel 01 is the display side, all the light provided by the light source passes through the dimming layer 201, and therefore all exits from the side of the cover 101. At this time, the display panel 01 The gray scale value displayed is the largest.
- part of the light provided by the light source is emitted from the side where the base substrate 100 is located, and part of the light is emitted from the side where the cover 101 is located. Therefore, whether the display side of the display panel 01 is located on the side where the base substrate 100 is located or the side where the cover 101 is located, the grayscale value of the image displayed on the display panel 01 is between the maximum grayscale value and the minimum grayscale value. Middle gray scale value.
- both the side where the base substrate 100 is located and the side where the cover 101 is located in the display panel 01 can display images. Therefore, the display panel 01 provided by some embodiments of the present disclosure can achieve double-sided display.
- the display system 02 includes any one of the display panels 01 described above, and a light source 60 configured to provide an illumination beam to the display panel 01.
- the display system 02 in this example has the same technical effect as the display panel 01 provided by any of the foregoing embodiments, and will not be repeated here.
- the above-mentioned display system 02 can realize reflective display and transmissive display.
- the above two display modes are described in detail below.
- the display system 02 when the display system 02 implements transmissive display, the display system 02 includes the light source 60 described above.
- the light source 60 is located on a side of the display panel 01, for example, the light source 60 is located on a side of the first electrode 11 away from the second electrode 12.
- the light emitting surface of the light source 60 is parallel to the display surface of the display panel 01.
- the display surface of the above-mentioned display panel 01 refers to the side on which the display panel 01 displays a screen.
- the display surface of the display panel 01 is a plane corresponding to the side where the cover 101 of the display panel 01 is located.
- the light emitted by the light source 60 can pass through the first electrode 11 and be incident on the surface A of the dimming layer 201 in contact with the refractive index adjustment layer 202.
- the display panel 01 is in a dark state.
- the incident angle ⁇ of all the light on the surface A is less than the total reflection angle ⁇ , all the light passes through the refractive index adjustment layer 202 and the second electrode 12 and exits from the cover 101. At this time, the grayscale value displayed on the display panel 01 is the highest.
- the incident angle ⁇ of part of the light on the surface A is greater than the total reflection angle ⁇ , and the incident angle ⁇ of part of the light on the surface A is less than the total reflection angle ⁇ , the incident angle ⁇ is larger (such as ⁇ 1 in Figure 4b).
- the light is totally reflected on the aforementioned surface A, and the light with a small incident angle ⁇ (such as ⁇ 2 in FIG. 4b) passes through the refractive index adjustment layer 202 and the second electrode 12, and is emitted from the cover 101.
- the display panel 01 displays an intermediate gray scale.
- the display panel 01 further includes the above-mentioned color filter layer 61.
- the color filter layer 61 is located on the side of the second electrode 12 away from the first electrode 11, and the color filter layer 61 covers the light modulation structure 20 of the display panel 01.
- the light emitted from the light modulation structure 20 can pass through the color filter layer 61 when it is transmitted in the direction toward the cover plate 101, so that the color filter layer 61 makes the sub
- the pixel 10 emits colored light, such as blue, red, or green light.
- the wavelength of light that can be transmitted by the color filter layer 61 in each sub-pixel 10 is different.
- multiple sub-pixels 10 located in the same pixel can respectively emit light of different colors, such as red light, green light, and blue light.
- the display system 02 when the above-mentioned display system 02 implements reflective display, the display system 02 includes the above-mentioned light source 60, a half mirror 62 and a reflecting mirror 63.
- the light source 60 is arranged on one side of the display panel 01.
- the light source is arranged on the side of the cover plate 101 close to the display panel 01; for another example, as shown in FIG. 12, the light source is arranged on the side of the base substrate 100 close to the display panel 01.
- the plane where the light-emitting surface of the light source 60 is located intersects the plane where the display surface of the display panel 01 is located.
- the display surface of the display panel 01 may be a plane corresponding to the side where the base substrate 100 is located in the display panel 01, or it may be where the cover 101 is located. One side corresponds to the plane.
- the display panel 01 A double-sided display can be realized, that is, the human eye can view the displayed image on the side close to the base substrate 100, and can also view the displayed image on the side close to the cover 101.
- the plane corresponding to the light-emitting surface of the light source 60 refers to the orthographic projection of the light-emitting surface along the light-emitting direction as a plane.
- the light-emitting surface may also be a curved surface; similarly, the display panel 01
- the plane corresponding to the display surface of refers to that the orthographic projection of the display surface along the viewing direction of the user is a plane.
- the display surface may also be a curved surface.
- the half mirror 62 and the mirror 63 are arranged on the light exit path of the light source 60, and the half mirror 62 is located between the mirror 63 and the light source 60.
- the first part of the display panel 01 The side of the electrode 11 away from the second electrode 12 is close to the half mirror 62. This enables the light emitted from the light source 60 to be directed to the half mirror 62, and transmitted through the half mirror 62, then directed to the mirror 63, and then the light is reflected by the mirror 63 to the half mirror 62, and then The half mirror 62 reflects the light reflected by the mirror 63 to the display panel 01.
- the light emitted by the light source 60 can be first incident into the light modulation structure 20 ⁇ 201 ⁇ The dimming layer 201.
- the refractive index adjustment can be achieved by controlling the electric field between the first electrode 11 and the second electrode 12
- the refractive index of the layer 202, and the angle of incidence of light is adjusted by the shape of the surface of the light modulating layer 201 in contact with the refractive index adjustment layer 202, so that the light incident on the light modulating structure 20 passes through the light modulating structure 20 or is The amount of light reflected by the light modulation structure 20 is adjusted, so that the display panel 01 displays images with different gray levels.
- the light emitted by the light source 60 can be transmitted to the dimming layer 201 in the display panel 01 through the half mirror 62 and the reflecting mirror 63 described above.
- the light source 60 and the display surface of the display panel 01 are arranged alternately, both the side where the base substrate 100 is located and the side where the cover 101 is located in the display panel 01 can display.
- the above-mentioned display system further includes a lens 64.
- the lens 64 and the display panel 01 are located on both sides of the light path of the above-mentioned light source 60, and the lens 64 corresponds to the position of the display panel 01. .
- the above-mentioned lens 64 can converge the image displayed on the display panel 01 to a position to be viewed.
- the above-mentioned display panel 01 further includes the above-mentioned color filter layer 61.
- the color filter layer 61 is located on the side of the first electrode 11 away from the second electrode 12, and the color filter layer 61 covers the light modulation structure 20 of the display panel 01.
- the function and technical effect of the color filter layer 61 are the same as those described above, and will not be repeated here.
- the foregoing light source 60 may be an LED (Light Emitting Diode, LED) or a laser. This disclosure does not limit this.
- the display system further includes a processor 70.
- the processor 70 is electrically connected to the display panel 01, and the processor 70 is configured to output a display signal corresponding to the display image to the display panel 01.
- the above-mentioned display image may be a 2D image.
- the display panel 01 in the display system can display the above-mentioned 2D image.
- the above-mentioned displayed image may be a holographic interference fringe image.
- the light from the light source 60 is irradiated on the display panel 01 to be able to reproduce the holographic image, thereby realizing holographic display.
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Abstract
Description
Claims (20)
- 一种显示面板,包括多个亚像素,所述多个亚像素中的至少一个亚像素包括:第一电极;设置于所述第一电极一侧的光调制结构;以及,设置于所述光调制结构的远离所述第一电极一侧的第二电极;其中,所述光调制结构包括:折射率调节层,所述折射率调节层的折射率能够在所述第一电极和所述第二电极之间的电场作用下发生变化;调光层,所述调光层位于所述折射率调节层与所述第一电极之间,并且所述调光层与所述折射率调节层相接触,所述调光层与所述折射率调节层相接触的表面的至少一部分为曲面。
- 根据权利要求1所述的显示面板,其中,所述调光层包括:多个凸起,所述多个凸起分布于所述第一电极的靠近所述折射率调节层一侧的表面上;所述多个凸起中的至少一个凸起与所述折射率调节层相接触的表面为曲面。
- 根据权利要求2所述的显示面板,其中,所述多个凸起呈阵列式排列,且所述多个凸起的外形尺寸相同。
- 根据权利要求2所述的显示面板,其中,所述多个凸起呈矩阵形式排列,且所述多个凸起的外形尺寸相同。
- 根据权利要求2~4中任一项所述的显示面板,其中,所述多个凸起中的至少一个凸起与所述折射率调节层相接触的表面为半球面。
- 根据权利要求1~5中任一项所述的显示面板,其中,构成所述折射率调节层的材料包括电光晶体材料。
- 根据权利要求1~6中任一项所述的显示面板,其中,所述多个亚像素中的每个亚像素均包括所述第一电极、所述光调制结构和所述第二电极;所述多个亚像素所包括的所有第二电极连接为一整层。
- 根据权利要求1~7中任一项所述的显示面板,其中,所述显示面板还包括:衬底基板;以及,位于所述衬底基板上的多条栅线和多条数据线,所述多条栅线和所述多条数据线纵横交叉界定出用于容纳所述多个亚像素的多个亚像素区域。
- 根据权利要求8所述的显示面板,其中,所述显示面板还包括:设置于所述多个亚像素区域中的每个亚像素区域内的晶体管,所述晶体管的栅极与所述多条栅线中对应的栅线电连接,所述晶体管的第一极与所述多条数据线中对应的数据线电连接,所述晶体管的第二极与其所在的亚像素区域内的所述第一电极电连接。
- 根据权利要求9所述的显示面板,其中,所述显示面板还包括:黑矩阵,所述黑矩阵位于所述第二电极的远离所述第一电极一侧;其中,所述黑矩阵覆盖所述晶体管的至少一部分;和/或,所述黑矩阵覆盖所述多条栅线的至少一部分及所述多条数据线的至少一部分。
- 根据权利要求1~10中任一项所述的显示面板,其中,所述显示面板还包括:供电电极,所述供电电极与所述第二电极电连接,所述供电电极配置为向所述第二电极提供公共电压。
- 根据权利要求1~11所述的显示面板,其中,所述显示面板还包括:彩色滤光层,所述彩色滤光层设置于所述第二电极的远离所述第一电极的一侧;或者,所述彩色滤光层设置于所述第一电极的远离所述第二电极的一侧;所述彩色滤光层覆盖所述显示面板中的光调制结构。
- 一种应用于如权利要求1~12中任一项所述的显示面板的驱动方法,包括:向所述第一电极输入像素电压,同时向所述第二电极输入公共电压,通过在所述第一电极和所述第二电极之间的电场作用下,控制所述折射率调节层的折射率发生变化,以使得所述显示面板中对应的亚像素实现不同的灰阶显示。
- 根据权利要求13所述的驱动方法,其中,在所述电场的方向由所述第一电极指向所述第二电极,且所述公共电压不变的情况下,所述折射率调节层的折射率随所述像素电压的增大而减小;在所述电场的方向由所述第二电极指向所述第一电极,且所述公共电压不变的情况下,所述折射率调节层的折射率随所述像素电压的增大而增大。
- 一种显示系统,包括:如权利要求1~12中任一项所述的显示面板;光源,所述光源配置为向所述显示面板提供照明光束。
- 根据权利要求15所述的显示系统,其中,所述光源设置于所述显示面板的一侧,并且所述光源的出光面与所述显示面板的显示面平行。
- 根据权利要求16所述的显示系统,其中,所述光源位于所述第一电极的远离所述第二电极的一侧。
- 根据权利要求15所述的显示系统,其中,所述光源设置于所述显示面板的一侧,并且所述光源的出光面所在的平面与所述显示面板的显示面所在的平面相交;所述显示系统还包括:设置于所述光源出光路径上的半透半反镜和反射镜,所述半透半反镜位于所述反射镜和所述光源之间;所述半透半反镜配置为透过所述光源出射的光线,以使光线射向所述反射镜,以及将经所述反射镜反射的光线反射至所述显示面板。
- 根据权利要求18所述的显示系统,其中,所述半透半反镜位于所述第一电极的远离所述第二电极的一侧;所述显示系统还包括:透镜,所述透镜设置于所述半透半反镜的远离所述显示面板的一侧。
- 根据权利要求15~19中任一项所述的显示系统,所述显示系统包括处理器,所述处理器与所述显示面板电连接;所述处理器配置为向所述显示面板输出对应于显示图像的显示信号。
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CN110739338B (zh) | 2019-10-24 | 2022-11-29 | 京东方科技集团股份有限公司 | 一种显示基板及其制备方法、显示面板 |
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CN113126351B (zh) * | 2021-04-16 | 2023-04-11 | 福州京东方光电科技有限公司 | 一种显示模组及其驱动方法、显示装置 |
CN113380146B (zh) * | 2021-06-08 | 2023-07-21 | 京东方科技集团股份有限公司 | 双面显示面板以及双面显示装置 |
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CN115079463B (zh) * | 2022-06-30 | 2023-10-20 | 京东方科技集团股份有限公司 | 一种液晶显示面板、液晶显示装置和制作方法 |
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