CN115729000A - Display module and display device - Google Patents
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Abstract
The embodiment of the invention discloses a display module and a display device. In a specific embodiment, the display module includes a display liquid crystal panel and a dimming liquid crystal panel located at a light incident side of the display liquid crystal panel, the display liquid crystal panel includes a first substrate and a plurality of first pixel regions arranged in an array on the first substrate, the first pixel regions include first pixel electrodes, the first pixel electrodes include a plurality of first strip electrodes connected to each other, the dimming liquid crystal panel includes a second substrate and a plurality of second pixel regions arranged in an array on the second substrate, the second pixel regions include second pixel electrodes, the second pixel electrodes include a plurality of second strip electrodes connected to each other, and extension directions of the second strip electrodes and the first strip electrodes are the same. The embodiment can improve the aperture opening ratio and the transmittance of the display module, thereby improving the display effect.
Description
Technical Field
The invention relates to the technical field of display. And more particularly, to a display module and a display device.
Background
The liquid crystal display device mainly comprises a backlight module and a liquid crystal display module. In order to further improve the contrast ratio, a display module with a double-panel is proposed in the prior art, in which a display liquid crystal panel and a dimming liquid crystal panel located on the light incident side of the display liquid crystal panel are combined together to implement display, wherein: the display liquid crystal panel with the color resistance layer is used for color display; the dimming liquid crystal panel without the color resistance layer is used for performing pixel-level or micron-level dimming on backlight emitted by the backlight module, the display liquid crystal panel and the dimming liquid crystal panel are attached after being manufactured respectively, and the display liquid crystal panel and the dimming liquid crystal panel are controlled by an external circuit to work cooperatively. Because the pixel size of the Dimming liquid crystal panel is much smaller than that of a common LED lamp, even if a direct type backlight module is used and a Local Dimming (LD) technology is adopted, the LD can only realize millimeter-scale Dimming, and thus, the Dimming liquid crystal panel can realize regional backlight brightness control with smaller granularity, and the display module of the double-panel can realize higher contrast. However, the inventor finds that the conventional display module with double-sided board has the problems of low aperture ratio, low transmittance and the like.
Disclosure of Invention
The invention aims to provide a display module and a display device to solve at least one of the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a display module in a first aspect, which comprises a display liquid crystal panel and a dimming liquid crystal panel positioned on the light incident side of the display liquid crystal panel, wherein the display liquid crystal panel comprises a first substrate and a plurality of first pixel areas arranged on the first substrate in an array manner, each first pixel area comprises a first pixel electrode, each first pixel electrode comprises a plurality of first strip-shaped electrodes connected with one another, the dimming liquid crystal panel comprises a second substrate and a plurality of second pixel areas arranged on the second substrate in an array manner, each second pixel area comprises a second pixel electrode, each second pixel electrode comprises a plurality of second strip-shaped electrodes connected with one another, and the extension directions of the second strip-shaped electrodes are the same as the extension directions of the first strip-shaped electrodes.
Optionally, there is an overlap region between the orthographic projection of at least part of the second strip-shaped electrodes on the first substrate and the orthographic projection of the first strip-shaped electrodes on the first substrate.
Optionally, an orthographic projection of at least part of the second strip-shaped electrodes on the first substrate coincides with an orthographic projection of the first strip-shaped electrodes on the first substrate.
Optionally, the orthographic projection of the second pixel region on the first substrate at least covers the orthographic projections of two first pixel regions on the first substrate.
Optionally, the dimming liquid crystal panel further includes a plurality of second scan lines extending along the first direction and a plurality of second data lines extending along the second direction, the plurality of second scan lines and the plurality of second data lines crossing to define the plurality of second pixel regions, the second pixel regions further include second thin film transistors, and the dimming liquid crystal panel further includes a planarization layer for planarizing a gap region between the second pixel region of the dimming liquid crystal panel and an adjacent second pixel region.
Optionally, the dimming liquid crystal panel further includes a second black matrix pattern, and an orthogonal projection of the second black matrix pattern on the second substrate coincides with an orthogonal projection of the second thin film transistor on the second substrate.
Optionally, the dimming liquid crystal panel further comprises a second spacer pillar, and an orthographic projection of the second spacer pillar on the second substrate coincides with an orthographic projection of the second thin film transistor on the second substrate.
Optionally, the display liquid crystal panel further includes a plurality of first scan lines extending in a first direction and a plurality of first data lines extending in a second direction, the plurality of first scan lines and the plurality of first data lines crossing to define the plurality of first pixel regions, the first pixel regions further include first thin film transistors, the display liquid crystal panel further includes first spacer pillars, an orthographic projection of the first spacer pillars on the first substrate coincides with an orthographic projection of at least a part of the first thin film transistors on the first substrate, and an orthographic projection of the second spacer pillars on the first substrate coincides with an orthographic projection of the first spacer pillars on the first substrate.
Optionally, the display module further includes:
the first polaroid is positioned on the light-emitting side of the display liquid crystal panel;
the second polaroid is positioned between the display liquid crystal panel and the dimming liquid crystal panel; and
the third polaroid is positioned on the light incident side of the dimming liquid crystal panel;
wherein at least one of the second polarizer and the third polarizer is a polarizer having haze.
A second aspect of the present invention provides a display device, which includes the display module of the first aspect of the present invention and a backlight module located on the light incident side of the dimming liquid crystal panel.
The invention has the following beneficial effects:
according to the technical scheme, on the basis of realizing high contrast, the aperture opening ratio and the transmittance of the display module can be improved, and the moire phenomenon and the rainbow pattern phenomenon can be improved, so that the display effect is improved.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a display device according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating a display module in a display device according to an embodiment of the invention.
FIG. 3 is a schematic diagram of a display LCD panel.
Fig. 4 shows a schematic diagram of a dimming lcd panel.
Fig. 5 is a schematic view showing the display liquid crystal panel shown in fig. 3 and the dimming liquid crystal panel shown in fig. 4 after they are bonded to each other.
FIG. 6 shows a schematic diagram of a simulated Moire phenomenon.
Fig. 7 shows a schematic diagram of a simulated rainbow texture phenomenon.
Fig. 8 shows another schematic diagram of a dimmed liquid crystal panel.
Fig. 9 shows another schematic diagram of the simulated moir e phenomenon.
Fig. 10 shows another schematic diagram of a simulated rainbow streak phenomenon.
Detailed Description
The terms "formed on (8230) \\ 8230on (8230) '," formed on (828230) \ 8230on (8230) ', and "disposed on (8230) ', in the present invention, may mean that one layer is directly formed or disposed on another layer, or that one layer is indirectly formed or disposed on another layer, i.e., that another layer is present between two layers.
It will be understood that, although the terms "first", "second", etc. may be used herein to describe various elements, components, elements, regions, layers and/or sections, these elements, components, elements, regions, layers and/or sections should not be limited by these terms. Rather, these terms are used to distinguish one element, component, element, region, layer or section from another. Thus, for example, a first component, a first member, a first element, a first region, a first layer, and/or a first portion discussed below could be termed a second component, a second member, a second element, a second region, a second layer, and/or a second portion without departing from the teachings of the present invention.
In the present invention, unless otherwise specified, the term "disposed on the same layer" is used to mean that two layers, components, members, elements or portions may be formed by the same manufacturing process (e.g., patterning process, etc.), and the two layers, components, members, elements or portions are generally formed of the same material. For example, two or more functional layers are arranged in the same layer, which means that the functional layers arranged in the same layer can be formed by using the same material layer and using the same manufacturing process, so that the manufacturing process of the display substrate can be simplified.
In the present invention, unless otherwise specified, the expression "patterning process" generally includes the steps of coating of a photoresist, exposure, development, etching, stripping of the photoresist, and the like. The expression "one-time patterning process" means a process of forming a patterned layer, member, or the like using one mask plate.
The liquid crystal display device mainly comprises a backlight module and a liquid crystal display module. In order to further improve the contrast ratio, a display module with a dual panel is proposed in the prior art, which combines a display liquid crystal panel and a dimming liquid crystal panel located on the light incident side of the display liquid crystal panel to realize display, wherein: manufacturing a display liquid crystal panel of the colored resist layer to perform color display; the dimming liquid crystal panel without the color resistance layer is used for performing pixel-level or micron-level dimming on backlight emitted by the backlight module, the display liquid crystal panel and the dimming liquid crystal panel are attached after being manufactured respectively, and the display liquid crystal panel and the dimming liquid crystal panel are controlled by an external circuit to work cooperatively. Because the pixel size of the Dimming liquid crystal panel is much smaller than the size of a common LED lamp, and even if a direct type backlight module is used and a Local Dimming technology (LD) is adopted, the LD can only realize millimeter-scale Dimming, therefore, the Dimming liquid crystal panel can realize the regional backlight brightness control with smaller granularity, and the display module of the double-panel can realize higher contrast. However, the inventor found that, in the existing display module with a dual panel, since the display module includes a display liquid crystal panel and a dimming liquid crystal panel, the problem of low aperture ratio and transmittance may be caused under the influence of two layers of devices, especially two layers of pixel electrodes, and in addition, since the display liquid crystal panel and the dimming liquid crystal panel have a certain distance therebetween, the moire phenomenon may occur in the display image viewed by human eyes, and the light transmittance corresponding to different color pixels in the display image viewed by human eyes may be different at different viewing angles, thereby causing the rainbow moire phenomenon in the display image viewed by human eyes.
As shown in fig. 1, an embodiment of the invention provides a display device, which includes a display module 100 and a Backlight unit (BLU) 200 located at a light incident side of the display module 100, where the display module 100 includes a liquid crystal display panel (Main Cell) 110 and a light-adjusting liquid crystal panel (Sub Cell) 120 located at the light incident side of the liquid crystal display panel 110.
As shown in fig. 1, the display module 100 further includes:
a first Polarizer (POL) 130 at a light emitting side of the display liquid crystal panel 110;
a second polarizer 140 between the display lcd panel 110 and the dimming lcd panel 120; and
and a third polarizer 150 on the light incident side of the dimming lcd panel 120.
The first polarizer 130, the second polarizer 140, and the third polarizer 150 are configured as follows:
the absorption axis of the first polarizer 130 is perpendicular to the absorption axis of the second polarizer 140 and the absorption axis of the second polarizer 140 is perpendicular to the absorption axis of the third polarizer 150, or the transmission axis of the first polarizer 130 is perpendicular to the transmission axis of the second polarizer 140 and the transmission axis of the second polarizer 140 is perpendicular to the transmission axis of the third polarizer 150, or the polarization direction of the first polarizer 130 is perpendicular to the polarization direction of the second polarizer 140 and the polarization direction of the second polarizer 140 is perpendicular to the polarization direction of the third polarizer 150.
In a specific example, the display liquid crystal panel 110 and the first polarizer 130, the display liquid crystal panel 110 and the second polarizer 140, the second polarizer 140 and the dimming liquid crystal panel 120, and the dimming liquid crystal panel 120 and the third polarizer 150 may be bonded by using an OCA (Optical Clear Adhesive) or an OCR (Optical Clear Resin).
In one embodiment, the backlight module 200 is a side-in type backlight module or a direct-in type backlight module.
As shown in fig. 2, in the display module 100, the display liquid crystal panel 110 includes a first array substrate 111, a first pair of box substrates 112 arranged opposite to the first array substrate 111, and a first liquid crystal layer 113 arranged between the first array substrate 111 and the first pair of box substrates 112, wherein the first array substrate 111 and the first pair of box substrates 112 are attached together by a frame sealing adhesive, and the first liquid crystal layer 113 is formed in a closed area surrounded by the frame sealing adhesive.
As shown in fig. 2 and 3, the first array substrate 111 includes a first substrate and a plurality of first pixel regions arranged in an array on the first substrate, the first pixel regions include first pixel electrodes, and the first pixel electrodes include a plurality of first bar electrodes 1112 connected to each other. In a specific example, as shown in fig. 3, the first array substrate 111 further includes a plurality of first scan lines 1113 extending in a first direction (e.g., X direction in fig. 3) and a plurality of first data lines 1114 extending in a second direction (e.g., Y direction in fig. 3) disposed on the first substrate, the plurality of first scan lines 1113 and the plurality of first data lines 1114 intersecting to define the plurality of first pixel regions, and the first pixel regions further include a first Thin Film Transistor (TFT) 1115, wherein a gate electrode of the first TFT 1115 is connected to the first scan lines 1113, a first electrode (e.g., source electrode) is connected to the first data lines 1114, and a second electrode (e.g., drain electrode) is connected to the first pixel electrodes belonging to the same first pixel region.
The display liquid crystal panel 110 further includes a color resist layer (or a color film layer) and a first common electrode, the color resist layer may be formed in the first array substrate 111 or the first pair of cell substrates 112, and the first pair of cell substrates 112 may be referred to as a color film substrate when the color resist layer is formed in the first pair of cell substrates 112. The color resistance layer comprises a plurality of red color resistances, a plurality of green color resistances and a plurality of blue color resistances which are arranged in an array, the first pixel area comprises a plurality of first red pixel areas, a plurality of first green pixel areas and a plurality of first blue pixel areas which are arranged in an array, a first red pixel area comprises a red color resistance and a first pixel electrode corresponding to the orthographic projection of the first red pixel area on the first substrate, a first green pixel area comprises a green color resistance and a first pixel electrode corresponding to the orthographic projection of the first green pixel area on the first substrate, and a first blue pixel area comprises a blue color resistance and a first pixel electrode corresponding to the orthographic projection of the first blue pixel area on the first substrate.
The liquid crystal molecules of the first liquid crystal layer 113 are twisted under the action of the driving electric field formed between the first pixel electrode and the first common electrode, the polarization direction of the incident light is controlled, the transmittance of the incident light is controlled under the cooperation of the first polarizer 130 and the second polarizer 140, and color display is realized by combining the color resistance layer.
As shown in fig. 2, in the display module 100, the dimming liquid crystal panel 120 includes a second array substrate 121, a second pair of box substrates 122 arranged to be in a box-to-box relationship with the second array substrate 121, and a second liquid crystal layer 123 arranged between the second array substrate 121 and the second pair of box substrates 122, wherein the second array substrate 121 and the second pair of box substrates 122 are attached together by a frame sealing adhesive, and the second liquid crystal layer 123 is formed in a sealed area surrounded by the frame sealing adhesive.
As shown in fig. 2 and 4, the second array substrate 121 includes a second substrate and a plurality of second pixel regions arranged in an array on the second substrate, where the second pixel regions include second pixel electrodes, and the second pixel electrodes include a plurality of second strip electrodes 1212 connected to each other. In a specific example, as shown in fig. 4, the second array substrate 121 further includes a plurality of second scan lines 1213 extending in a first direction (e.g., an X direction in fig. 4) and a plurality of second data lines 1214 extending in a second direction (e.g., a Y direction in fig. 4) disposed on the second substrate, the plurality of second scan lines 1213 and the plurality of second data lines 1214 intersecting to define a plurality of second pixel regions, and the second pixel regions further include a second Thin Film Transistor (TFT) 1215, wherein a gate of the second TFT 1215 is connected to the second scan lines 1213, a first pole (e.g., a source) is connected to the second data lines 1214, and a second pole (e.g., a drain) is connected to a second pixel electrode belonging to the same second pixel region.
The dimming liquid crystal panel 120 further includes a second common electrode. The liquid crystal molecules of the second liquid crystal layer 123 are twisted under the action of the driving electric field formed between the second pixel electrode and the second common electrode, the polarization direction of the incident light is controlled, and the transmittance of the incident light is controlled under the cooperation of the second polarizer 140 and the third polarizer 150, so that the backlight emitted by the backlight module 200 is dimmed.
For example, in the present embodiment, the display liquid crystal panel 110 and the dimming liquid crystal panel 120 are respectively a liquid crystal panel adopting an Advanced Super Dimension switching (AD-SDS, ADs) mode, the first pixel electrode in the display liquid crystal panel 110 and the second pixel electrode in the dimming liquid crystal panel 120 are respectively formed as slit electrodes, and the common electrode is respectively formed as a plate electrode.
As shown in fig. 3 and 4, the second bar electrodes 1212 and the first bar electrodes 1112 extend in the same direction, or a Slit (Slit) formed by the second pixel electrodes 1212 and a Slit (Slit) formed by the first pixel electrodes 1112 extend in the same direction. Therefore, the display device provided by the embodiment can reduce the influence of the two layers of pixel electrodes on the aperture opening ratio on the basis of realizing high contrast, and the aperture opening ratio and the transmittance of the display module are improved, so that the display effect is improved.
In one possible implementation, as shown in fig. 3 and 4, there is an overlapping region between the orthographic projection of at least part of the second strip-shaped electrodes 1212 on the first substrate and the orthographic projection of the first strip-shaped electrodes 1112 on the first substrate. Therefore, the effect of improving the aperture opening ratio and the transmittance of the display module can be ensured by further limiting the orthographic projection correspondence of the two layers of pixel electrodes.
In one possible implementation, as shown in fig. 3 and 4, an orthographic projection of at least a portion of the second strip electrodes 1212 on the first substrate coincides with an orthographic projection of the first strip electrodes 1112 on the first substrate. Therefore, the effect of improving the aperture opening ratio and the transmittance of the display module can be further ensured by further limiting the orthographic projection correspondence of the two layers of pixel electrodes.
In one possible implementation, as shown in fig. 3 and 4, the orthographic projection of the second pixel region on the first substrate at least covers the orthographic projections of two first pixel regions on the first substrate. Therefore, the moire phenomenon and the rainbow phenomenon can be improved, and the display effect is improved.
In a specific example, as shown in fig. 3 and 4, the size of the first pixel region in the display liquid crystal panel 110 is 44.88 μm × 134.64 μm, that is, the length of the first pixel region in the display liquid crystal panel 110 in the first direction (X direction) is 44.88 μm, and the length in the second direction (Y direction) is 134.64 μm. The size of the second pixel region in the dimming lcd panel 120 is 134.64 μm × 134.64 μm, that is, the length of the second pixel region in the dimming lcd panel 120 in the first direction (X direction) is 134.64 μm, and the length of the second pixel region in the second direction (Y direction) is 134.64 μm, and as shown in fig. 3 and 4, one second pixel region corresponds to three first pixel regions in the first direction (X direction). Since the scan lines and the data lines in the lcd panel 110 and the lcd panel 120 are opaque, it can be understood that: (1) In the case where the second stripe-shaped electrode 1212 and the first stripe-shaped electrode 1112 extend in the same direction, the second scan line 1213 extends in the same direction as the first scan line 1113 and the second data line 1214 extends in the same direction as the first data line 1114; (2) In a case where there is an overlap region between the orthographic projection of at least part of the second strip-shaped electrodes 1212 on the first substrate and the orthographic projection of the first strip-shaped electrodes 1112 on the first substrate, there is an overlap region between the orthographic projection of the second scan lines 1213 on the first substrate and the orthographic projection of the first scan lines 1113 on the first substrate, and there is an overlap region between the orthographic projection of the second data lines 1214 on the first substrate and at least part of the first data lines 1114 on the first substrate, wherein the reason why there is an overlap region between the orthographic projection of at least part of the second strip-shaped electrodes 1212 and the first strip-shaped electrodes 1112 is, for example, that one second pixel region shown in fig. 3 and 4 in this example corresponds to three first pixel regions in the first direction (X direction), then there is a second data line 1214 where there is a part of the second strip-shaped electrodes 1212 corresponding to the first pixel regions instead of the first strip-shaped electrodes 1214, and there is an overlap region with at least part of the first data lines 1114; (3) In case at least part of the orthographic projection of the second strip-shaped electrode 1212 on the first substrate coincides with the orthographic projection of the first strip-shaped electrode 1112 on the first substrate, the orthographic projection of the second scan line 1213 on the first substrate coincides with the orthographic projection of the first scan line 1113 on the first substrate and the orthographic projection of the second data line 1214 on the first substrate coincides with at least part of the first data line 1114 on the first substrate. The above (1) - (3) can further ensure the effect of improving the aperture opening ratio and transmittance of the display module.
In one possible implementation, the dimming lcd panel 120 further includes a Planarization Layer (PLN) for planarizing a gap region between the second pixel region and the adjacent second pixel region of the dimming lcd panel 120. Therefore, in the dimming liquid crystal panel 120, the black matrix pattern corresponding to the second scanning line 1213 and the second data line 1214 in the orthographic projection manner on the second substrate is not needed, and the effect of improving the aperture ratio and transmittance of the display module can be further ensured.
In a specific example, the planarization layer is an organic planarization layer formed between the SD metal line (including the second scan line 1213 and the second data line 1214) and the two layers of electrodes (the second pixel electrode and the common electrode) of the dimming lcd panel 120, for example, the SD metal line has a thickness of 0.36 μm, the organic planarization layer has a thickness of 2.5 μm, after the organic planarization layer covers the SD line, there is no thickness step difference between the gap region (SD metal line region) between adjacent second pixel regions and the second pixel region (specifically, the pixel opening region corresponding to the second pixel electrode), and the liquid crystal molecules are not disturbed near the gap region (SD metal line region) between the adjacent second pixel regions, so in the dimming lcd panel 120, the position of the front projection on the second substrate corresponding to the SD metal line (including the second scan line 1213 and the second data line 1214) does not need to be provided with a black matrix pattern, and the effect of improving the aperture ratio and transmittance ratio of the display module can be further ensured.
In combination with the foregoing implementation, in a possible implementation, the dimming lcd panel 120 further includes a second black matrix pattern, and an orthogonal projection of the second black matrix pattern on the second substrate coincides with an orthogonal projection of the second thin film transistor 1215 on the second substrate. Therefore, the effect of improving the aperture opening ratio and the transmittance of the display module can be further ensured.
In one possible implementation, as shown in fig. 5, the dimming lcd panel 120 further includes a second spacer Pillar (PS) 1216, and an orthogonal projection of the second spacer pillar 1216 on the second substrate coincides with an orthogonal projection of the second thin film transistor 1215 on the second substrate. Therefore, the effect of improving the aperture opening ratio and the transmittance of the display module can be further ensured. In conjunction with the above implementation, an orthographic projection of the second black matrix pattern on the second substrate is also coincident with an orthographic projection of the second spacer posts 1216 on the second substrate.
In one possible implementation, the display lcd panel 110 further includes a first spacer Pillar (PS), an orthographic projection of the first spacer pillar on the first substrate coincides with an orthographic projection of at least a portion of the first thin film transistor 1115 on the first substrate, and an orthographic projection of the second spacer pillar 1216 on the first substrate coincides with an orthographic projection of the first spacer pillar on the first substrate.
In one possible implementation, at least one of the second and third polarizers 140 and 150 is a polarizer having Haze (Haze). Therefore, the Moire phenomenon and the Rainbow phenomenon can be further improved, and the display effect can be favorably improved.
In a specific example, the second and third polarizers 140 and 150 are both polarizers having Haze (Haze), and the sum of the Haze of the second and third polarizers 140 and 150 is greater than 65%.
In summary of the foregoing implementation manner, in a specific example, the display module 100 of the dual panel verifies the contrast improvement as follows:
for example, the backlight luminance of the backlight module 200 is 3500nit, the L0 luminance of the dimming lcd panel 120 is about 0.3nit, and the L0 luminance of the dual panel display module 100 is 0.3 =2.5 = 10 (L0 transmittance of the display lcd panel 110) = 0.3/3500=, and -5 if the L255 brightness of the dual panel display module 100 is about 200nit, the contrast = L255/L0=8000000 of the dual panel display module 100 is calculated, and the ultra-high contrast display device can be obtained through the design of the dual panel, the contrast can reach the hundred thousand level, which is comparable to the conventional liquid crystal display deviceCompared with the contrast ratio of about 1500, the contrast ratio is greatly improved.
In summary of the above implementation, in one specific example, as shown in fig. 3, the first pixel electrode of the display liquid crystal panel 110 includes two domains arranged in the second direction (Y direction): in one domain, the extending direction of the first stripe electrode 1112 and the slit formed by the adjacent first stripe electrode 1112 forms an angle of +15 ° with the second direction (Y direction); in the other domain, the extending direction of the slits formed by the first stripe electrodes 1112 and the adjacent first stripe electrodes 1112 forms an angle of-15 ° with the second direction (Y direction); the first striped electrodes 1112 in the two domains are mirror-symmetrical in the first direction (X direction). Similarly, as shown in fig. 4, the second pixel electrode of the dimming liquid crystal panel 120 includes two domains arranged in the second direction (Y direction): in one domain, the second stripe-shaped electrode 1212 and the slit formed by the adjacent second stripe-shaped electrodes 1212 have an angle of +15 ° with the second direction (Y direction); in the other domain, the extending direction of the slits formed by the second stripe electrodes 1212 and the adjacent second stripe electrodes 1212 forms an angle of-15 ° with the second direction (Y direction); the second stripe-shaped electrodes 1212 in the two domains are mirror-symmetric in the first direction (X-direction). And in this example, as shown in fig. 3, 4 and 5: (1) one second pixel region corresponds to three first pixel regions in the first direction (X direction); (2) the dimming liquid crystal panel 120 includes a planarization layer for planarizing a gap region between the second pixel region of the dimming liquid crystal panel 120 and an adjacent second pixel region, an orthogonal projection of the second black matrix pattern on the second substrate and an orthogonal projection of the second spacer post 1216 on the second substrate coincide with an orthogonal projection of the second thin film transistor 1215 on the second substrate, respectively; (3) the sum of the haze of the second polarizer 140 and the third polarizer 150 is greater than 65%. The display device of the present example showed a simulated moire phenomenon as shown in fig. 6, no moire phenomenon, and a simulated rainbow pattern phenomenon as shown in fig. 7, which was slight, and was acceptable in an actual product to such an extent.
In another specific example, the first stripe electrode of the first pixel electrode of the display liquid crystal panel and the slit formed adjacent to the first stripe electrode extend at an angle of about 90 ° with respect to the second direction (Y direction). Similarly, as shown in fig. 8, the extending direction of the second stripe electrodes 1212 'of the second pixel electrode of the dimming liquid crystal panel and the slits formed between the adjacent second stripe electrodes 1212' forms an angle of about 90 ° with the second direction (Y direction). And in this example, as shown in fig. 8: (1) one second pixel region corresponds to three first pixel regions in the first direction (X direction); (2) the dimming liquid crystal panel comprises a flat layer for flattening a gap area between a second pixel area and an adjacent second pixel area of the dimming liquid crystal panel, and an orthographic projection of a second black matrix pattern on the second substrate and an orthographic projection of a second spacer column on the second substrate are respectively overlapped with an orthographic projection of a second thin film transistor on the second substrate; (3) the sum of the haze of the second polarizer 140 and the third polarizer 150 is greater than 65%. The display device of the present example showed a simulated moire phenomenon as shown in fig. 9, no moire phenomenon, and a simulated rainbow pattern phenomenon as shown in fig. 10, which was slightly heavier than fig. 7, but was acceptable in actual products to such an extent.
In conclusion, the display device of the double-sided board provided by the embodiment can improve the aperture opening ratio and transmittance of the display module on the basis of realizing high contrast, and can also improve the moire phenomenon and the rainbow pattern phenomenon, thereby improving the display effect.
The display device of the double-sided board provided in this embodiment may be any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like, which is not limited in this embodiment.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations and modifications can be made on the basis of the above description, and all embodiments cannot be exhaustive, and all obvious variations and modifications belonging to the technical scheme of the present invention are within the protection scope of the present invention.
Claims (10)
1. The utility model provides a display module assembly, its characterized in that, including display liquid crystal panel and be located the liquid crystal panel of adjusting luminance that shows liquid crystal panel income light side, display liquid crystal panel includes first substrate and a plurality of first pixel regions of array arrangement on the first substrate, first pixel region includes first pixel electrode, first pixel electrode includes a plurality of first bar electrodes of interconnect, adjust luminance liquid crystal panel include the second substrate and a plurality of second pixel regions of array arrangement on the second substrate, the second pixel region includes the second pixel electrode, the second pixel electrode includes a plurality of second bar electrodes of interconnect, wherein, the second bar electrode with the extending direction of first bar electrode is the same.
2. The display module according to claim 1, wherein at least a part of the second stripe electrodes has an overlapping region with an orthogonal projection of the first stripe electrodes on the first substrate.
3. A display module according to claim 2, wherein the orthographic projection of at least some of the second strip-shaped electrodes on the first substrate coincides with the orthographic projection of the first strip-shaped electrodes on the first substrate.
4. A display module according to any one of claims 1-3, characterized in that the orthographic projection of the second pixel area on the first substrate covers at least two orthographic projections of the first pixel area on the first substrate.
5. The display module of claim 1, wherein the dimming lcd panel further comprises a plurality of second scan lines extending along a first direction and a plurality of second data lines extending along a second direction, the plurality of second scan lines and the plurality of second data lines crossing to define the plurality of second pixel regions, the second pixel regions further comprising second thin film transistors, and the dimming lcd panel further comprises a planarization layer for planarizing a gap region between the second pixel region of the dimming lcd panel and an adjacent second pixel region.
6. The display module according to claim 5, wherein the dimming LCD panel further comprises a second black matrix pattern, and an orthogonal projection of the second black matrix pattern on the second substrate coincides with an orthogonal projection of the second TFT on the second substrate.
7. The display module according to claim 5 or 6, wherein the dimming LCD panel further comprises a second spacer pillar, and an orthographic projection of the second spacer pillar on the second substrate coincides with an orthographic projection of the second TFT on the second substrate.
8. The display module according to claim 7, wherein the display liquid crystal panel further comprises a plurality of first scan lines extending in a first direction and a plurality of first data lines extending in a second direction, the plurality of first scan lines and the plurality of first data lines intersecting to define the plurality of first pixel regions, the first pixel regions further comprise first thin film transistors, the display liquid crystal panel further comprises first spacer pillars, an orthographic projection of the first spacer pillars on the first substrate coincides with an orthographic projection of at least a part of the first thin film transistors on the first substrate, and an orthographic projection of the second spacer pillars on the first substrate coincides with an orthographic projection of the first spacer pillars on the first substrate.
9. The display module assembly of claim 1, wherein the display module assembly further comprises:
the first polaroid is positioned on the light emitting side of the display liquid crystal panel;
the second polaroid is positioned between the display liquid crystal panel and the dimming liquid crystal panel; and
the third polaroid is positioned on the light inlet side of the dimming liquid crystal panel;
wherein at least one of the second polarizer and the third polarizer is a polarizer having haze.
10. A display device, comprising the display module according to any one of claims 1 to 9 and a backlight module disposed at a light incident side of the dimming lcd panel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211505033.2A CN115729000A (en) | 2022-11-29 | 2022-11-29 | Display module and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211505033.2A CN115729000A (en) | 2022-11-29 | 2022-11-29 | Display module and display device |
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| CN115729000A true CN115729000A (en) | 2023-03-03 |
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| CN110361899A (en) * | 2019-06-27 | 2019-10-22 | 厦门天马微电子有限公司 | A kind of display device |
| CN111273493A (en) * | 2020-03-24 | 2020-06-12 | 京东方科技集团股份有限公司 | Array substrate, backlight control screen and double-screen liquid crystal display device |
| CN111999948A (en) * | 2020-09-02 | 2020-11-27 | 上海中航光电子有限公司 | Display panel and display device |
| US20210333657A1 (en) * | 2018-03-26 | 2021-10-28 | Hefei Boe Display Technology Co., Ltd. | Display device, method for manufacturing the display device, and method for controlling contrast |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210333657A1 (en) * | 2018-03-26 | 2021-10-28 | Hefei Boe Display Technology Co., Ltd. | Display device, method for manufacturing the display device, and method for controlling contrast |
| CN110361899A (en) * | 2019-06-27 | 2019-10-22 | 厦门天马微电子有限公司 | A kind of display device |
| CN111273493A (en) * | 2020-03-24 | 2020-06-12 | 京东方科技集团股份有限公司 | Array substrate, backlight control screen and double-screen liquid crystal display device |
| CN111999948A (en) * | 2020-09-02 | 2020-11-27 | 上海中航光电子有限公司 | Display panel and display device |
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