WO2020258649A1 - 一种显示装置 - Google Patents
一种显示装置 Download PDFInfo
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- WO2020258649A1 WO2020258649A1 PCT/CN2019/117274 CN2019117274W WO2020258649A1 WO 2020258649 A1 WO2020258649 A1 WO 2020258649A1 CN 2019117274 W CN2019117274 W CN 2019117274W WO 2020258649 A1 WO2020258649 A1 WO 2020258649A1
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Definitions
- This application relates to the field of display technology, in particular to a display device.
- the liquid crystal display is a non-self-luminous device, and usually requires a backlight module to realize the display function through the backlight source provided by the backlight module.
- the backlight module generally includes a light source, and the light source may be a direct light source.
- the backlight module may include a light source substrate (such as a light emitting diode (LED) substrate) composed of multiple light sources, and the light emitted by the light source substrate The propagation direction of is perpendicular to the light-emitting surface of the backlight module.
- a light source substrate such as a light emitting diode (LED) substrate
- a backlight module including a light source substrate When a backlight module including a light source substrate is used, it can help to improve the display contrast of the liquid crystal display.
- the display due to the size limitation of each light source on the light source substrate, when the liquid crystal display needs to display high-resolution images, the display is relatively low. It is difficult to achieve a smooth and delicate transition between the bright area and the darker area, resulting in limitations in improving the display effect.
- the embodiment of the present application provides a display device to improve the display effect of the liquid crystal display.
- An embodiment of the application provides a display device, including: a backlight module, a first display structure located on the light-emitting surface of the backlight module, and a second display structure located on the side of the first display structure away from the backlight module Display structure
- the first display structure and the second display structure are arranged opposite to each other;
- the first display structure includes first pixels arranged in an array, the first pixels are divided into a plurality of dimming areas, and the dimming area includes at least one of the first pixels; the first display structure It is used to adjust the transmittance of the light emitted by the backlight module by each dimming area according to the image to be displayed in the next frame of the second display structure.
- An embodiment of the application provides a display device, wherein the display device includes a first display structure, a second display structure, and a backlight module.
- the first display structure and the second display structure are arranged opposite to each other, and the first display structure includes an array arrangement
- the first pixel is divided into a plurality of dimming areas, and the dimming area includes at least one first pixel; the first display structure is used to adjust each adjustment according to the image to be displayed in the next frame of the second display structure
- the transmittance of the light zone to the light emitted by the backlight module In this way, the function of regional dimming can be realized by the dimming area in the first display structure.
- each dimming area includes at least one first pixel
- each dimming area The area can be set to be relatively small.
- the dimming area can achieve high-precision and high-contrast display, thereby effectively improving the display effect.
- FIG. 1 is a cross-sectional view perpendicular to the light emitting surface of the display device provided in an embodiment of the application;
- FIG. 2 is a schematic structural diagram of a first display structure of the first type provided in an embodiment of the application;
- FIG. 3 is a schematic structural diagram of a second first display structure provided in an embodiment of the application.
- FIG. 4 is a schematic structural diagram of a third first display structure provided in an embodiment of the application.
- FIG. 5 is a schematic structural diagram of a first pixel of the first type provided in an embodiment of this application.
- FIG. 6 is a schematic structural diagram of a second type of first pixel provided in an embodiment of this application.
- FIG. 7 is a schematic structural diagram of a third type of first pixel provided in an embodiment of the application.
- FIG. 8 is a schematic structural diagram of a fourth type of first pixel provided in an embodiment of the application.
- Fig. 9 is a cross-sectional view taken along the direction n1-n2 in Fig. 8;
- FIG. 10 is a schematic structural diagram of a first display device provided in an embodiment of this application.
- FIG. 11 is a schematic structural diagram of a second display device provided in an embodiment of this application.
- FIG. 12 is a schematic diagram of the polarization direction of each polarizer corresponding to FIG. 10 and FIG. 11;
- FIG. 13 is a schematic structural diagram of a third display device provided in an embodiment of this application.
- FIG. 14 is a schematic structural diagram of a fourth display device provided in an embodiment of this application.
- 10-backlight module 20-first display structure, 30-second display structure, 21, 21a, 21b, 21c-dimming area, 22-first pixel, 22a-first pixel electrode, 22b-transistor , G-gate line, D-data line, 22c-connecting line, 22a1-first section, 22a2-second section, F1-first section, F2-second section, F3-third section, 40- Transparent adhesive layer, 50-seal, 1a-first substrate, 1b-second substrate, 2a-third substrate, 2b-fourth substrate, 3a-first liquid crystal, 3b-second liquid crystal, 4, P1 P3-upper polarizer, 5, P2, P4-lower polarizer, 6-first polarizer, 7-second polarizer, 8-third polarizer.
- FIGS. 1 to 4 An embodiment of the present application provides a display device, as shown in FIGS. 1 to 4, wherein FIG. 1 is a cross-sectional view perpendicular to the light emitting surface of the display device, and FIG. 2 is a schematic structural diagram of a first display structure of the first type. 3 is a schematic structural diagram of the second first display structure, and FIG. 4 is a schematic structural diagram of the third first display structure.
- the display device includes: a backlight module 10, a first display structure 20 located on the light-emitting surface of the backlight module 10, and a second display structure 30 located on the side of the first display structure 20 away from the backlight module 10;
- the first display structure 20 is arranged opposite to the second display structure 30;
- the first display structure 20 includes first pixels 22 arranged in an array, the first pixels 22 are divided into a plurality of dimming areas (21 in FIGS. 2 and 3, and as 21a and 21b) in Figure 4, the dimming area includes at least one first pixel 22; the first display structure 20 is used to: adjust each dimming area to the backlight mode according to the image to be displayed in the next frame by the second display structure 30 The transmittance of light emitted by group 10.
- the function of the second display structure 30 is to display images by using the backlight source transmitted through the first display structure 20, that is, the function of the second display structure 30 can be understood as displaying images.
- the function of the first display structure 20 is to adjust the transmittance of each dimming area to the light emitted by the backlight module 10 according to the image to be displayed in the next frame of the second display structure 30, that is, the first display structure 20
- the function of is to control the transmittance of each dimming area to the backlight source emitted by the backlight module 10, so the function of the first display structure 20 can be understood as regional dimming according to the image to be displayed in the next frame of the second display structure 30 .
- the first display structure 20 is mainly used for area dimming. Since the first display structure 20 includes the first pixel 22, the arrangement structure of the first pixel 22 may be similar to the second display structure 30 The second pixel (which will be described below) in the second pixel (described below), so the first pixel 22 can be set relatively small, and will not be limited by the size of the light source like the backlight module 10, and then the first display Each dimming area in the structure 20 can be set to be smaller.
- the second display structure can be used between the areas with a relatively large difference in brightness and darkness. The delicate and smooth transition avoids the appearance of obvious boundaries. While achieving high-contrast display, it can also achieve high-precision display, thereby effectively improving the display effect.
- the display device may also include a driver integrated circuit (Integrated Circuit, IC), as shown in FIGS. 1 to 4 None of the driver ICs are shown, and the driver ICs are electrically connected to the first display structure and the second display structure.
- IC Integrated Circuit
- the first control signal can be understood as a control signal output to each dimming area in the first display structure to adjust the transmittance of each dimming area to the backlight source to achieve regional dimming.
- the second control signal can be understood as outputting a control signal in the second display structure, so that the second display structure uses the backlight source transmitted through the first display structure to display images, thereby realizing the display function.
- the number of driver ICs provided in the display device can also be two, one of which is located in the first display structure and the other is located in the second display structure.
- the two driver ICs can be electrically connected or insulated, and can be set according to actual needs. .
- the display device may also include a control structure (for example, but not limited to, a microcontroller, or a microprocessor, or a single-chip computer hardware structure), which is connected to the two driver ICs.
- the IC is electrically connected, and the working process between the control structure and the two drive ICs can be:
- control structure When the control structure receives the signal to be displayed, it is first sent to the driver IC in the first display structure, so that the driver IC processes the signal to be displayed to obtain a control signal to adjust the transparency of each dimming area to the backlight source. Over rate, realizing area dimming. At the same time, the driving IC in the first display structure can give feedback to the control structure, and has been informed that the first display structure is working normally and that the area dimming can be completed normally.
- control structure After the control structure receives the feedback from the driver IC in the first display structure, it sends a signal to be displayed to the driver IC in the second display structure to use the backlight source transmitted through the first display structure under the control of the driver IC. Display images to realize the display function.
- control structure is only an example to illustrate the working process between the control structure and the two driver ICs.
- interaction process between the control structure and the two driver ICs is not limited to the above content, as long as the control structure can communicate with Two driver ICs enable the first display structure to realize the function of regional dimming and the second display structure to realize the display function, which is not limited here.
- the arrangement of the first pixel 22 will be described below.
- the second display structure 30 includes second pixels arranged in an array
- the area of the orthographic projection of the first pixel on the light-emitting surface of the display device may be greater than or equal to the area of the orthographic projection of the second pixel on the light-emitting surface of the display device.
- the first pixel can be set according to actual needs, which greatly improves the flexibility of the design to meet the needs of various application scenarios.
- the area of the orthographic projection of the first pixel on the light-emitting surface of the display device is equal to the area of the orthographic projection of the second pixel on the light-emitting surface of the display device;
- the second pixel includes a second pixel electrode
- the first pixel includes a first pixel electrode
- the orthographic projection shapes of the first pixel electrode and the second pixel electrode on the light emitting surface of the display device are the same.
- the first pixel structure of the first type is shown in FIG. 5, where only the orthographic projection shape of the first pixel electrode 22a on the light emitting surface of the display device is shown as a reference, and the second pixel electrode
- the orthographic projection shape on the light-emitting surface of the display device can refer to the first pixel shown in FIG. 5, that is, the orthographic projection shape of the first pixel electrode 22a on the light-emitting surface of the display device is rectangular.
- the second pixel electrode The orthographic projection shape on the light emitting surface of the device is also rectangular.
- the dimming area can be adjusted
- the area of is set to be small, so that a delicate and smooth transition can be made between areas with a relatively large difference in brightness and darkness in the second display structure, avoiding obvious boundaries, so that the display device has a more excellent display effect and achieves high precision And high contrast display.
- the first pixel may include a first pixel electrode 22a and a transistor 22b, wherein the first pixel electrode 22a passes through the transistor 22b and the gate
- the line G is electrically connected, and is electrically connected to the data line D through the transistor 22b, as shown in FIG. 5.
- the second pixel may also include a second pixel electrode and a transistor.
- the second pixel electrode may pass through the transistor and the gate line.
- the line is electrically connected, and is electrically connected to the data line through the transistor.
- the connection relationship between the structures included in the second pixel is the same, so the structure of the second pixel can be referred to as shown in FIG. 5.
- the placement position of the transistor in the first pixel, the structure of the transistor, the type of the transistor, and the shape of the orthographic projection of the first pixel electrode on the light-emitting surface of the display device can all be the same as those of the second pixel.
- the pixels are the same.
- the first pixel and the second pixel are set to be the same regardless of the structure included, the positional relationship and connection relationship between the structures, and the size of the setting.
- the structure of the first display structure and the second display structure can be set to be exactly the same to simplify the complexity of the display device and reduce the difficulty of manufacturing the display device; on the other hand, no matter what the first display structure displays
- the screen, through the function of the dimming area in the second display structure, can ensure that the display device has an excellent display effect, thereby meeting different display requirements.
- the area of the orthographic projection of the first pixel on the light-emitting surface of the display device is larger than the area of the orthographic projection of the second pixel on the light-emitting surface of the display device;
- the second pixel includes a second pixel electrode
- the first pixel includes at least one first pixel electrode.
- the first pixel 22 includes a first pixel electrode 22a, as shown in FIGS. 7 and 8, where FIG. 7 is the third type A schematic structural diagram of the first pixel.
- FIG. 8 is a schematic structural diagram of a fourth type of first pixel.
- the first pixel 22 includes four first pixel electrodes 22a.
- the display resolution of the second display structure applied in case 2 is lower than the display resolution of the second display structure applied in case 1.
- the area of the dimming area can be set a little larger than that of the dimming area in Case 1.
- the display device has a more excellent display effect and realizes a high-precision and high-contrast display. It can also be beneficial to reduce the number of dimming regions, so as to reduce the driving complexity of the first display structure and reduce the driving power consumption of the first display structure, thereby reducing the power consumption of the display device and prolonging the use time of the display device.
- the first pixel and The structure of the second pixel may include two situations in which the structure is set to be the same and the structure is set to be different.
- the area of each dimming zone can be set to be smaller.
- the number of divisions of the dimming zone will be smaller.
- the number of divisions of the dimming area is 106-1920*1080.
- the structure of the first pixel and the second pixel can be set to be the same.
- the structure included in the first pixel and the connection relationship between the structures may be the same as the second pixel.
- the first pixel 22 includes a first pixel electrode 22a and a transistor 22b electrically connected to the first pixel electrode 22a, wherein the first pixel electrode 22a is electrically connected to the gate line G and the data line D through the transistor 22b.
- the second pixel may also include a second pixel electrode and a transistor, wherein the second pixel electrode is electrically connected to the gate line and the data line through the transistor.
- the structural complexity of the display device can be greatly simplified, and at the same time, the manufacturing difficulty and cost of the display device can be reduced.
- the area of each dimming zone may be set to be larger, and the corresponding dimming zone
- the number of divisions will be small.
- the number of divisions of the dimming area is 500-106.
- the first pixel can be specially designed, namely the first pixel and the second pixel.
- the structure can be set to different.
- the first pixel 22 includes a plurality of first pixel electrodes 22a, and the first pixel 22 may include a plurality of first pixel electrodes 22a that are axially symmetrical or centrally symmetrical, as shown in FIGS. 7 and 8.
- each first pixel 22 includes four first pixel electrodes 22a, and they are centrally symmetrically arranged along the central symmetry point H.
- the center symmetry point H is shown in the first pixel 22 in the lower left corner shown in FIG. 8.
- first pixel electrodes included in the first pixel is not limited to four, but can also be two (not shown in the figure), and the corresponding two first pixel electrodes can be arranged axially symmetrically, or, It is 3 or 5, etc., which can be set as required, and is not limited here.
- the display device can still have a higher contrast ratio when based on a large viewing angle, so that the display device has an excellent display effect under different viewing angles, and is suitable for the needs of various application scenarios.
- the first display structure includes: a plurality of gate lines extending in a row direction and arranged in a column direction, and a plurality of data lines extending in a column direction and arranged in a row direction, and the first pixel includes a plurality of first
- the first pixel includes a plurality of first
- the dimming regions are arranged in an array, and the dimming regions include a plurality of first pixels; the first pixels include transistors arranged in one-to-one correspondence with the first pixel electrodes; that is, the first pixels include a plurality of In the case of the first pixel electrode, correspondingly, the first pixel also includes a plurality of transistors, and the transistors and the first pixel electrode are arranged in a one-to-one correspondence.
- the first pixel electrodes of two adjacent first pixels in the row direction are electrically connected to the same data line through corresponding transistors, and the first pixels of the two adjacent first pixels in the column direction The electrodes are electrically connected to the same gate line through correspondingly arranged transistors.
- each first pixel includes four first pixel electrodes 22a and four transistors 22b, and each first pixel
- the electrodes 22a are electrically connected to the gate line G and the data line D through correspondingly arranged transistors 22b.
- the four first pixels in the dimming area 21c are sequentially marked as X1, X2, X3, X4 in the order from left to right and from top to bottom.
- the first pixel X1 and the first pixel X2 are two adjacent first pixels in the row direction, and the two adjacent first pixel electrodes 22a of the first pixel X1 and the first pixel X2 are all connected to the same through corresponding transistors 22b.
- a data line D is electrically connected.
- the first pixel X3 and the first pixel X4 are two adjacent first pixels in the row direction, and the two adjacent first pixel electrodes 22a of the first pixel X3 and the first pixel X4 pass through correspondingly arranged transistors 22b. Both are electrically connected to the same data line D.
- the first pixel X1 and the first pixel X3 are two adjacent first pixels in the column direction.
- the two adjacent first pixel electrodes 22a of the first pixel X1 and the first pixel X3 are connected to each other through correspondingly arranged transistors 22b.
- the same gate line G is electrically connected.
- the first pixel X2 and the first pixel X4 are two adjacent first pixels in the column direction, and the two adjacent first pixel electrodes 22a of the first pixel X2 and the first pixel X4 pass through correspondingly arranged transistors. 22b are all electrically connected to the same gate line G.
- each first pixel electrode 22a is electrically connected to the data line D and the gate line G through the corresponding transistor 22b, it can be avoided that only one transistor 22b is provided in the first pixel and the transistor 22b fails to work normally. As a result, all the first pixel electrodes 22a in the first pixel cannot work normally, which can effectively reduce the faulty area and improve the reliability of the first display structure.
- the structure of the first display structure is simplified, and the manufacturing difficulty and manufacturing cost of the first display structure are reduced, thereby reducing the manufacturing difficulty and manufacturing cost of the display device.
- two adjacent first pixel electrodes in two dimming regions adjacent in the column direction are electrically connected to different gate lines through correspondingly arranged transistors, and two adjacent dimming regions in the row direction are in phase.
- Two adjacent first pixel electrodes are respectively electrically connected to different data lines through correspondingly arranged transistors.
- the first pixel is provided with: a connecting line electrically connected to each included first pixel electrode, and a transistor;
- the connecting line and the first pixel electrode are arranged in different layers;
- the gate of the transistor is electrically connected with the gate line, the source is electrically connected with the data line, and the drain is electrically connected with the connection line.
- the first pixel 22 includes four first pixel electrodes 22a, a transistor 22b, and a connecting line 22c, wherein the four first pixel electrodes 22a are electrically connected to each other through the connecting line 22c.
- the connecting line 22c is electrically connected to the gate line G and the data line D through the transistor 22b, so the four first pixel electrodes 22a are electrically connected to the gate line G and the data line D through the transistor 22b, respectively.
- the configuration shape of the connecting wire 22c is not limited to that shown in FIG. 8. As long as the electrical connection between each first pixel electrode 22a and the transistor 22b can be realized, it falls within the scope of the protection of the embodiment of the present application.
- the number of transistors in the first pixel can be reduced, thereby reducing the space in the first pixel occupied by the transistors, which is beneficial to increase the aperture ratio of the first pixel, and thus is beneficial to reduce the first display structure
- the connecting wire can be made of the same material and arranged in the same layer as the gate of the transistor, which is not shown in the figure, which is beneficial to simplify the manufacturing process of the first display structure, thereby reducing the manufacturing difficulty of the first display structure.
- the connecting wire 22c can also be made of the same material and arranged in the same layer as the source/drain of the transistor 22b, as shown in FIG. 9, which is a cross-sectional view along the direction n1-n2 in FIG. 22c can be directly contacted and electrically connected with the drain of the transistor 22b without electrical connection through vias.
- FIG. 9 is a cross-sectional view along the direction n1-n2 in FIG. 22c can be directly contacted and electrically connected with the drain of the transistor 22b without electrical connection through vias.
- This not only reduces the structure of the first display structure, reduces the difficulty of manufacturing the first display structure, but also ensures that the connection line 22c and the transistor 22b are connected. Effective contact is achieved between the drains of the battery, avoiding the problem of insufficient contact due to small via holes when electrically connecting through via holes, thereby ensuring effective signal transmission.
- the configuration results of the first pixel and the second pixel when the structure is the same or different are introduced, but regardless of whether the structure of the first pixel and the second pixel are the same, the first pixel electrode and the second pixel
- the orthographic projection shapes of the electrodes on the light-emitting surface of the display device can all be set to be the same.
- the orthographic projection shape of the first pixel electrode and the second pixel electrode on the light-emitting surface of the display device can be set as:
- both the first pixel electrode 22a and the second pixel electrode include a first sub-section 22a1 and a plurality of second sub-sections 22a2, and the plurality of second sub-sections 22a2 are all electrically connected to the first sub-section 22a1,
- the first division 22a1 extends along the first direction
- the plurality of second divisions 22a2 are arranged along the first direction, and there is a gap between each second division 22a2;
- the second segment 22a2 includes: a first segment F1, a second segment F2, and a third segment F3 connected, the first segment F1 is electrically connected to the first segment 22a1, and the second segment F2 is arranged between the first segment F1 and the third segment F1. Between the segments F3, the first segment F1 extends along the first sub-direction, the second segment F2 extends along the second sub-direction, and the third segment F3 extends along the third sub-direction;
- the first direction is the row direction
- the second sub-direction is the column direction
- the first sub-direction and the third sub-direction are parallel to each other and intersect the row direction and the column direction respectively; or, the first direction is the column direction, and the second sub-direction is The direction is the row direction, and the first sub-direction and the third sub-direction are parallel to each other and intersect the row direction and the column direction respectively.
- the X direction represents the row direction
- the Y direction represents the column direction
- the M direction represents the first sub-direction.
- the X direction, the Y direction, and the M direction are all located in the same plane. Since the first sub-direction and the third sub-direction are parallel, the M direction can also mean the third sub-direction.
- the first segment 22a1 extends along the Y direction
- the first segment F1 and the third segment F3 in the second segment 22a2 both extend along the M direction
- the second segment F2 extends along the X direction
- the second segment 22a2 The first section F1 is connected to the second section 22a2, and the second section F2 is used to connect the first section F1 and the third section F3.
- the orthographic projection shapes of the first pixel electrode and the second pixel electrode on the light-emitting surface of the display device can be set to be the same (the shape shown in FIG. 6), but the size is different. In this way, since the size of the first pixel electrode is relatively large, the manufacturing difficulty will be reduced and the yield of manufactured products will increase accordingly, so the manufacturing yield of the display device can be greatly improved.
- the orthographic projection shape of each dimming area on the light emitting surface of the display device can be set to be the same, and the area can also be set to be the same.
- the dimming area 21 has a square shape, and each dimming area 21 includes 9 first pixels 22.
- the shape of the dimming area 21 is a rectangle.
- the aspect ratio of the dimming area 21 and the display device may be set to be the same. If the aspect ratio of the display device is 16:9, the aspect ratio of the dimming area can also be set to 16:9.
- first pixels 22 are shown in FIGS. 2 and 3, and the number of the first pixels 22 provided in the first display structure is not limited to those shown in FIGS. 2 and 3.
- the correspondingly set dimming The number of regions 21 is not limited to those shown in FIGS. 2 and 3 either.
- the dimming area can be set according to the needs to improve the flexibility of the setting; because the area of the dimming area is the same, the difficulty of controlling each dimming area can be simplified, thereby reducing the difficulty of driving the first display structure .
- the first display structure includes: a first display area and a second display area surrounding the first display area;
- the dimming area includes a plurality of first sub-areas and a plurality of second sub-areas, the plurality of first sub-areas are located in the first display area, and the plurality of second sub-areas are located in the second display area;
- the area of the second sub-region is smaller than the area of the first sub-region.
- A represents the entire display area
- A1 represents the first display area located in the center of the entire display area
- the entire display area A except for the first display area A1 is the second display area , Not marked with a mark in the figure.
- the first sub-area in the first display area A1 is denoted by 21b, and each first sub-area 21b includes 6 first pixels 22; the second sub-area located in the second display area is denoted by 21a, and the second sub-area is denoted by 21a.
- the sub-region 21 a includes at least one first pixel 22 and at most three first pixels 22.
- the areas and shapes of the second sub-regions are not all set the same, and can be set according to actual conditions, which are not limited here.
- the area and shape of each first sub-region are set to be the same, such as a rectangle in FIG. 4, but it is not limited to this.
- the second display area can be regarded as the edge area of the entire display area
- the first display area can be regarded as In the central area of the entire display area, the area of the first sub-area located in the second display area is set to be smaller, so that the edge area of the entire display area can be finely adjusted, thereby eliminating the jagged edges of the display device.
- Other undesirable phenomena to improve the display effect of the display device are possible.
- the entire display area in the first display structure can be the area corresponding to the display area in the second display structure, and the area size can be set to be exactly the same. In this way, it can be ensured that the area adjustment is achieved through the first display structure. Light improves the display effect of the second display structure, and can also avoid edge light leakage or poor edge display caused by different areas or misalignments, thereby improving the display effect of the display device.
- the transmittance of the backlight emitted by the backlight module 10 can be well controlled and adjusted through the dimming zone. For example, if the display device The resolution is 1920*1080, and the number of dimming areas can be 500-1920*1080. If the number of dimming areas is 14,400, and the area of each dimming area is the same, each dimming area The number of included first pixels may be 144.
- the dimming area can achieve high-precision and high-contrast display, thereby effectively improving the display effect.
- the first display structure 20 and the second display structure 30 may both be liquid crystal display panels, as shown in FIG. 10, a schematic structural diagram of the first display device.
- the first display structure 20 and the second display structure A transparent adhesive layer 40 is arranged between 30, and the first display structure 20 and the second display structure 30 are fixed and bonded through the transparent adhesive layer.
- the transparent adhesive layer 40 may be, but is not limited to, polyvinyl alcohol (PVA) glue material.
- the first display structure 20 and the second display structure 30 can also be fixed by the sealant 50.
- FIG. 11 a schematic structural diagram of the second display device.
- the sealant 50 may be provided with other materials ( Not shown), it can also be filled with air (as shown in Figure 11).
- the material of the sealant 50 can be any material that can achieve encapsulation and bonding, and it is not limited here.
- the first display structure 20 includes: a first substrate 1a and a second substrate 1b that are opposed to each other, and are located between the first substrate 1a and the first substrate 1a. Between the first liquid crystal 3a, the upper polarizer 4 on the side of the second substrate 1b away from the first substrate 1a, and the lower polarizer 5 on the side of the first substrate 1a away from the second substrate 1b, wherein the first substrate 1a It may be an array substrate, and the second substrate 1b may be an opposite substrate.
- the second display structure 30 includes: a third substrate 2a and a fourth substrate 2b facing each other, a second liquid crystal 3b located between the third substrate 2a and the fourth substrate 2a, and a fourth substrate 2b far from the third substrate 2a
- the upper polarizer 4 on one side and the lower polarizer 5 on the side of the third substrate 2a away from the fourth substrate 2b, wherein the third substrate 2a may be an array substrate, and the fourth substrate 2b may be an opposite substrate.
- the polarization direction of the polarized light passing through the upper polarizer 4 and the lower polarizer 5 is vertical, and for the lower polarizer 5 of the first display structure 20 and the second display structure 30 On the upper polarizer 4, the polarization directions of the polarized light passing through the two polarizers are parallel. In order to realize the display function.
- FIG. 12 is a schematic diagram of the polarization direction of each polarizer corresponding to FIG. 10 and FIG. 11, only 4 polarizers are shown in the figure.
- the upper polarizer and the lower polarizer included in the structure 20 are marked as P3 and P4, respectively.
- the upper polarizer and the lower polarizer included in the second display structure 30 are marked as P1 and P2, respectively.
- the polarized light that transmits P1 is When the polarization direction is the X direction, the polarization direction of polarized light transmitted through P2 is the Y direction, the polarization direction of polarized light transmitted through P3 is the Y direction, and the polarization direction of polarized light transmitted through P4 is the X direction.
- the setting of the deflection direction of the first liquid crystal 3a included in the first display structure 20 and the second liquid crystal 3b included in the second display structure 30 can be set according to needs, as long as the display function can be realized, it belongs to the implementation of this application.
- first display structure and the second display structure are both liquid crystal display panels and the structures are basically similar, the first display structure and the second display structure can be manufactured at the same time, so as to improve the manufacturing efficiency of the display device.
- the second type is the first type:
- the display device includes: a first polarizer 6 , The second polarizer 7, the third polarizer 8;
- the first polarizer 6 is disposed on the side of the second display structure 30 away from the backlight module 10
- the second polarizer 7 is disposed between the first display structure 20 and the second display structure 30, and the third polarizer 8 is disposed on the second display structure.
- the polarized light transmitted through the first polarizer 6 and the polarized light transmitted through the second polarizer 7 are perpendicular to each other, and the polarized light transmitted through the first polarizer 6 and the polarized light transmitted through the third polarizer 8 are parallel to each other.
- the display device includes three polarizers, wherein the first polarizer 6 and the third polarizer 8 have the same polarization direction of light, and the first polarizer 6 and the second polarizer 7 have the same direction of light polarization. .
- the display function of the display device can be realized, which not only simplifies the structure of the display device, but also facilitates the realization of a thinner and lighter design.
- the first display structure 20 may include: a first substrate 1 and a second substrate 2 opposed to each other, and a first liquid crystal 3a disposed between the first substrate 1 and the second substrate 2. ;
- the first substrate 1 can be understood as an array substrate, and the second substrate 2 can be understood as an opposite substrate.
- the second display structure 30 may include: a third substrate 2a and a fourth substrate 2b disposed opposite to each other, and a second liquid crystal 3b located between the third substrate 2a and the fourth substrate 2b; the third substrate 2a includes pixel electrodes , The third substrate 2a is disposed close to the first substrate 1.
- the third substrate 2a can also be understood as an array substrate, and the fourth substrate 2b can be understood as an opposite substrate.
- the display device shown in FIG. 13 has a different number of polarizers than those shown in FIGS. 11 and 12, that is, the display device shown in FIG. 13 includes a smaller number of polarizers. , Which can help reduce the thickness of the display device and realize a thinner and lighter design.
- the display device also includes a first polarizer, a second polarizer, and a third polarizer, and the positions and functions of the three polarizers are the same as the second structure described above.
- the first display structure includes one substrate instead of two substrates.
- the structure of the display device may also be as shown in FIG. 14.
- the first display structure 20 may include a first substrate 1a, and a first liquid crystal 3a disposed between the first substrate 1a and the second polarizer 7; wherein, The first substrate 1a can be understood as an array substrate.
- the second display structure 30 includes: a third substrate 2a and a fourth substrate 2b arranged opposite to each other, and a second liquid crystal 3b located between the third substrate 2a and the fourth substrate 2b; the third substrate 2a includes pixel electrodes, and the third substrate 2a is provided close to the first substrate 1a.
- the third substrate 2a can also be understood as an array substrate, and the fourth substrate 2b can be understood as an opposite substrate.
- the first substrate 1a includes: a pixel electrode and a common electrode, not shown in FIG. 14; both the pixel electrode and the common electrode are used to drive the first liquid crystal to deflect.
- the display device shown in FIG. 14 has a different number of substrates compared to that of FIG. 13, that is, the number of substrates included in the display device shown in FIG. 14 is smaller. This can help reduce The thickness of the display device realizes a thin and light design.
- the first display structure does not include the counter substrate, so there is no problem of loss of light emitted by the first display structure due to the counter substrate, so that the display device has a more excellent display effect.
- the first display structure 20 includes a counter substrate (ie, the second substrate 1b), and the first liquid crystal 3a is located between the counter substrate and the array substrate (ie, the first substrate 1a).
- the first display structure 20 does not include the counter substrate (ie, the second substrate 1b), so the second liquid crystal 3b is located between the array substrate and the second polarizer 7.
- the arrangement structure of the backlight module may have the following two types:
- the backlight module may include: an edge light source and a light guide plate located on the light exit surface of the edge light source, not shown in the figure, the light guide plate can change the propagation direction of the light emitted by the edge light source, As a result, the light is emitted from the light-emitting surface of the backlight module and enters the first display structure.
- the backlight module of this structure can be called an edge-type backlight module.
- the manufacturing cost of the backlight module of this structure is lower than that of the direct-type backlight module (described in the following content), the manufacturing cost of the display device composed of the edge-type backlight module is lower. At the same time, high-precision and high-contrast display can be realized, effectively improving the display effect.
- the backlight module also includes other structures for realizing the function of the backlight module.
- the specific structure please refer to the description of the backlight module in the current technology, which will not be repeated here.
- the backlight module may include a light source substrate on which light sources arranged in an array are provided.
- the light sources may be composed of LEDs, and the light source substrate may also be referred to as an LED substrate, which is not shown in the figure.
- the light source emitted by the light source is directly emitted from the light emitting surface of the backlight module, so the backlight module with this structure can be called a direct type backlight module.
- the direct-type backlight module can realize regional dimming, so the display device composed of the backlight module of this structure In this case, both the backlight module and the first display structure can perform regional dimming, thereby further improving the display contrast and improving the display effect.
- the backlight module also includes other structures for realizing the functions of the backlight module.
- the specific structure please refer to the description of the backlight module in the prior art, which will not be repeated here.
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Abstract
Description
Claims (15)
- 一种显示装置,其特征在于,包括:背光模组、位于所述背光模组出光面的第一显示结构、以及位于所述第一显示结构远离所述背光模组一侧的第二显示结构;所述第一显示结构与所述第二显示结构相对设置;所述第一显示结构包括呈阵列排布的第一像素,所述第一像素被划分为多个调光区,所述调光区包括至少一个所述第一像素;所述第一显示结构用于:根据所述第二显示结构在下一帧需显示的图像,调整各所述调光区对所述背光模组发出的光线的透过率。
- 如权利要求1所述的显示装置,其特征在于,所述第二显示结构包括呈阵列排布的第二像素;所述第一像素在所述显示装置出光面上的正投影的面积大于或等于所述第二像素在所述显示装置出光面上的正投影的面积。
- 如权利要求2所述的显示装置,其特征在于,所述第一像素在所述显示装置出光面上的正投影的面积等于所述第二像素在所述显示装置出光面上的正投影的面积;所述第二像素包括一个第二像素电极,所述第一像素包括一个第一像素电极,所述第一像素电极与所述第二像素电极在所述显示装置出光面上的正投影形状相同。
- 如权利要求2所述的显示装置,其特征在于,所述第一像素在所述显示装置出光面上的正投影的面积大于所述第二像素在所述显示装置出光面上的正投影的面积;所述第二像素包括一个第二像素电极;所述第一像素包括至少一个第一像素电极。
- 如权利要求4所述的显示装置,其特征在于,所述第一像素包括多个呈轴对称或呈中心对称的第一像素电极。
- 如权利要求4所述的显示装置,其特征在于,所述第一像素电极和所述第二像素电极均包括一个第一分部和多个第二分部,所述多个第二分部均与所述第一分部电连接,所述第一分部沿第一方向延伸,所述多个第二分部沿所述第一方向排布,各所述第二分部之间具有间隙;所述第二分部包括:连接的第一段、第二段和第三段,所述第一段与所述第一分部电连接,所述第二段设置在所述第一段与所述第三段之间,所述第一段沿第一子方向延伸,所述第二段沿第二子方向延伸,所述第三段沿第三子方向延伸;其中,所述第一方向为行方向,所述第二子方向为列方向,所述第一子方向与所述第三子方向互相平行且分别与所述行方向和所述列方向相交;或,所述第一方向为所述列方向,所述第二子方向为所述行方向,所述第一子方向与所述第三子方向互相平行且分别与所述行方向和所述列方向相交。
- 如权利要求4所述的显示装置,其特征在于,所述第一显示结构包括:多条沿行 方向延伸且沿列方向排列的栅线、以及多条沿列方向延伸且沿行方向排列的数据线;各所述调光区呈阵列排布,所述调光区包括多个所述第一像素;所述第一像素包括与所述第一像素电极一一对应设置的晶体管;同一所述调光区中:行方向上相邻两个所述第一像素中的第一像素电极通过对应设置的所述晶体管与同一所述数据线电连接,列方向上相邻两个所述第一像素中的第一像素电极通过对应设置的所述晶体管与同一所述栅线电连接。
- 如权利要求4所述的显示装置,其特征在于,所述第一显示结构包括:多条沿行方向延伸且沿列方向排列的栅线、以及多条沿列方向延伸且沿行方向排列的数据线;所述第一像素包括多个第一像素电极;所述第一像素内设置有:与包括的各第一像素电极电连接的连接线、以及晶体管;所述连接线与所述第一像素电极异层设置;所述晶体管的栅极与所述栅线电连接,源极与所述数据线电连接,漏极与所述连接线电连接。
- 如权利要求8所述的显示装置,其特征在于,所述连接线与所述晶体管的源/漏极同材质且同层设置。
- 如权利要求1所述的显示装置,其特征在于,所述第一显示结构包括:第一显示区域、以及围绕所述第一显示区域的第二显示区域;所述调光区包括多个第一子区和多个第二子区,所述多个第一子区位于所述第一显示区域内,所述多个第二子区位于所述第二显示区域内;所述第二子区的面积小于所述第一子区的面积。
- 如权利要求10所述的显示装置,其特征在于,所述第一子区的形状为正方形,或所述第一显示结构在所述显示装置的出光面上的正投影形状为矩形,所述第一子区与所述第一显示结构的长宽比相同;所述第二子区的形状为矩形。
- 如权利要求1所述的显示装置,其特征在于,所述第一显示结构和所述第二显示结构均为液晶显示面板;所述第一显示结构与所述第二显示结构之间设置有透明粘结层。
- 如权利要求1所述的显示装置,其特征在于,所述显示装置包括:第一偏光片、第二偏光片、第三偏光片;所述第一偏光片设置于所述第二显示结构远离所述背光模组的一侧,所述第二偏光片设置于所述第一显示结构与所述第二显示结构之间,所述第三偏光片设置于所述第一显示结构靠近所述背光模组的一侧;透过所述第一偏光片的偏振光与透过所述第二偏振片的偏振光互相垂直,透过所述第 一偏光片的偏振光与透过所述第三偏振片的偏振光互相平行。
- 如权利要求13所述的显示装置,其特征在于,所述第一显示结构包括第一基板、以及设置于所述第一基板与所述第二偏光片之间的第一液晶;所述第二显示结构包括:相对设置的第三基板和第四基板、以及位于所述第三基板与所述第四基板之间的第二液晶;所述第三基板包括像素电极,所述第三基板靠近所述第一基板设置。
- 如权利要求14所述的显示装置,其特征在于,所述第一基板包括:像素电极和公共电极;所述像素电极和所述公共电极均用于驱动所述第一液晶发生偏转。
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EP4067985B1 (en) * | 2019-11-28 | 2024-05-08 | BOE Technology Group Co., Ltd. | Array substrate, dimming liquid crystal panel and display panel |
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CN110928036A (zh) * | 2019-12-25 | 2020-03-27 | 厦门天马微电子有限公司 | 显示装置及其显示方法、制备方法 |
CN113703214B (zh) * | 2020-05-20 | 2022-11-11 | 福州京东方光电科技有限公司 | 一种显示面板及显示装置 |
CN111613146B (zh) * | 2020-06-23 | 2022-07-12 | 京东方科技集团股份有限公司 | 显示模组、显示装置及显示模组的驱动方法 |
CN111624794B (zh) * | 2020-06-29 | 2023-09-29 | 上海天马微电子有限公司 | 显示装置及驱动方法、车载显示系统 |
CN112269288B (zh) * | 2020-11-03 | 2023-03-31 | 天马微电子股份有限公司 | 一种控光液晶盒、显示面板、显示装置及其显示方法 |
CN112965289A (zh) * | 2021-03-24 | 2021-06-15 | 成都天马微电子有限公司 | 显示模组及其调光方法和显示装置 |
CN113643667B (zh) * | 2021-08-13 | 2023-06-06 | 京东方科技集团股份有限公司 | 显示装置及其控制方法、相关设备 |
CN114779530B (zh) * | 2022-05-16 | 2023-08-15 | 中国民用航空飞行学院 | 一种低光晕型Mini-LED背光显示器 |
CN115729000A (zh) * | 2022-11-29 | 2023-03-03 | 京东方科技集团股份有限公司 | 显示模组和显示装置 |
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