WO2023108636A1 - 液晶显示面板、显示模组及电子设备 - Google Patents

液晶显示面板、显示模组及电子设备 Download PDF

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Publication number
WO2023108636A1
WO2023108636A1 PCT/CN2021/139268 CN2021139268W WO2023108636A1 WO 2023108636 A1 WO2023108636 A1 WO 2023108636A1 CN 2021139268 W CN2021139268 W CN 2021139268W WO 2023108636 A1 WO2023108636 A1 WO 2023108636A1
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WIPO (PCT)
Prior art keywords
sub
pixel
color
area
liquid crystal
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PCT/CN2021/139268
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English (en)
French (fr)
Inventor
王景余
李哲
孙志丹
潘瑞琦
雷丹
滕征远
栗鹏
李晓吉
闵泰烨
秦海林
Original Assignee
京东方科技集团股份有限公司
重庆京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 重庆京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to CN202180004049.2A priority Critical patent/CN117296094A/zh
Priority to PCT/CN2021/139268 priority patent/WO2023108636A1/zh
Publication of WO2023108636A1 publication Critical patent/WO2023108636A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals

Definitions

  • the present disclosure relates to the field of display technology, in particular to a liquid crystal display panel, a display module and electronic equipment.
  • a liquid crystal display panel occupies an important position in the display field.
  • the under-screen camera is to completely build the front camera under the screen, which can increase the screen-to-body ratio.
  • the present disclosure provides a liquid crystal display panel, the liquid crystal display panel includes a first region and a second region, the transmittance of the first region is greater than the transmittance of the second region;
  • the liquid crystal display panel includes a plurality of sub-pixels
  • the multiple sub-pixels include a first color sub-pixel and a second color sub-pixel, the transmittance of the first color sub-pixel is greater than the transmittance of the second color sub-pixel, and the transmittance of the first color sub-pixel an area greater than that of the second color sub-pixel;
  • the plurality of sub-pixels also include sub-pixels in the first area and sub-pixels in the second area with the same color, the sub-pixels in the first area are located in the first area, and the sub-pixels in the second area are located in the second area In this case, the thickness of the color resistance layer of the sub-pixels in the first region is less than or equal to the thickness of the color resistance layer of the sub-pixels in the second region.
  • the light emission color of the first color sub-pixel is green, and the light emission color of the second color sub-pixel is red or blue.
  • the plurality of sub-pixels further include third-color sub-pixels, and the transmittance of the third-color sub-pixels is greater than the transmittance of the second-color sub-pixels and less than the transmittance of the second color sub-pixels.
  • the transmittance of the first color sub-pixel, the area of the third color sub-pixel is larger than or equal to the area of the second color sub-pixel, and smaller than or equal to the area of the first color sub-pixel.
  • the luminous color of the sub-pixels of the first color is green
  • the luminous color of the sub-pixels of the second color is blue
  • the luminous color of the sub-pixels of the third color is red
  • the liquid crystal display panel includes an array substrate and an opposing substrate, the array substrate includes a first substrate, and the array substrate is stacked on the first substrate close to the opposing a first electrode layer, an insulating layer and a second electrode layer on one side of the cell substrate;
  • the first electrode layer includes discrete touch electrodes and pixel electrodes
  • the second electrode layer includes a common electrode
  • the touch electrode and the common electrode are connected to the same voltage output terminal
  • the orthographic projection of the second electrode layer on the first substrate does not overlap with the orthographic projection of the touch electrode on the first substrate, and the second electrode layer is on the first substrate
  • the orthographic projection on the bottom does not overlap with the orthographic projection of the space area between the touch electrode and the pixel electrode on the first substrate.
  • the liquid crystal display panel includes an array substrate and a cell-matching substrate oppositely arranged, a spacer column is arranged between the array substrate and the cell-matching substrate, and the array substrate points to In the direction of the box substrate, the isolation column has a first surface and a second surface opposite to each other;
  • the edge of the first surface protrudes relative to the edge of the orthographic projection of the second surface on the first surface, and the protruding amount is less than or equal to 3 ⁇ m.
  • the liquid crystal display panel further includes a light-shielding layer, the light-shielding layer is disposed on the array substrate and/or the cell-matching substrate, and the light-shielding layer is on the first surface
  • the edge of the orthographic projection on the plane is protruding relative to the edge of the first surface, and the protruding amount is greater than or equal to 2 ⁇ m and less than or equal to 10 ⁇ m.
  • the present disclosure provides a display module, including a backlight module and a liquid crystal display panel as described in any one, the backlight module is set away from the light output side of the liquid crystal display panel, and the backlight module is used to The liquid crystal display panel provides a backlight;
  • the backlight module has an opening area, and the orthographic projection of the opening area on the display panel is located in the first area, and the opening area is used to place a shooting module, and the shooting module Groups are used to capture images.
  • the backlight module includes a first light source, and the first light source is a light emitting diode using red and green phosphors.
  • the backlight module includes a light guide plate and at least one prism sheet, and the at least one prism sheet is located on the light exit side of the light guide plate;
  • the prism sheet includes a base film, and a plurality of prism structures arranged on a side of the base film away from the light guide plate, and the plurality of prism structures include at least one first prism structure and at least one second prism structure , the at least one second prism structure is located between the at least one first prism structure and the hole area, and the first prism structure is used to direct the light incident on the first prism structure to the The second region emits, and the second prism structure is used to make at least part of the light incident on the second prism structure emit to the first region.
  • each of the prism structures has a slope close to the opening area, and the angle between the slope and the base film is a slope angle;
  • the slope angle of the second prism structure away from the opening area is larger than the slope angle of the second prism structure close to the opening area, and smaller than the slope angle of the first prism structure.
  • the slope angles of the first prism structures are the same.
  • the slope angle of the first prism structure is 45°.
  • the backlight module further includes a second light source, and the second light source is located on an end surface of the light guide plate on a side close to the opening area.
  • the second light source is a light emitting diode using red and green phosphors.
  • the present disclosure provides an electronic device, wherein the electronic device includes a camera module and the display module according to any one of the items, and the camera module is located in the opening area of the backlight module.
  • FIG. 1 schematically shows a schematic plan view of a liquid crystal display panel
  • FIG. 2 schematically shows a schematic diagram of a sub-pixel structure in a liquid crystal display panel
  • FIG. 3 schematically shows a schematic diagram of a sub-pixel structure in another liquid crystal display panel
  • FIG. 4 schematically shows a schematic cross-sectional structure diagram of a liquid crystal display panel
  • FIG. 5 schematically shows a schematic cross-sectional structure diagram of another liquid crystal display panel
  • FIG. 6 schematically shows a schematic plan view of an array substrate in a liquid crystal display panel
  • Fig. 7 schematically shows the simulation results of transmittance of two kinds of liquid crystal display panels
  • Fig. 8 schematically shows the liquid crystal deflection simulation results of two kinds of liquid crystal display panels
  • Fig. 9 schematically shows a schematic plan view of a spacer column and a light-shielding layer
  • FIG. 10 schematically shows a schematic cross-sectional structure diagram of a display module
  • Figure 11 schematically shows a schematic cross-sectional structure diagram of a prism sheet
  • FIG. 12 schematically shows a schematic cross-sectional structure diagram of a backlight module.
  • the transmittance of the liquid crystal display panel is generally about 6%, which cannot meet the requirement of setting the transmittance of the under-screen camera to be greater than or equal to 15%. Therefore, in order to be able to install an under-screen camera, it is necessary to increase the transmittance of the liquid crystal display panel.
  • the liquid crystal display panel includes a first region 10 and a second region 11 , and the transmittance of the first region 10 is greater than that of the second region 11 .
  • the first area 10 may be an under-screen camera area
  • the second area 11 may be a common display area.
  • the second area 11 may be arranged around the first area 10 as shown in FIG. 1 , which is not limited in the present disclosure.
  • the liquid crystal display panel includes a plurality of sub-pixels 20 .
  • a plurality of sub-pixels 20 may be arranged in an array in a liquid crystal display panel.
  • the multiple sub-pixels 20 include a first color sub-pixel 21 and a second color sub-pixel 22, the transmittance of the first color sub-pixel 21 is greater than the transmittance of the second color sub-pixel 22, the first color sub-pixel The area of the pixel 21 is larger than the area of the second color sub-pixel 22 .
  • the light emitting colors of the sub-pixels 21 of the first color and the sub-pixels of the second color 22 are different.
  • the light emitting color of the first color sub-pixel 21 may be red, green or blue.
  • the light emitting color of the second color sub-pixel 22 may be red, green or blue.
  • the area of the first color sub-pixel 21 with high transmittance is larger than the area of the second color sub-pixel 21 with low transmittance.
  • the area of the color sub-pixel 22 can increase the transmittance of the liquid crystal display panel compared with the case where the area of the first color sub-pixel 21 and the second color sub-pixel 22 are the same.
  • the plurality of sub-pixels 20 also include sub-pixels 12 in the first area and sub-pixels 13 in the second area with the same color, the sub-pixels in the first area 12 are located in the first area 10, and the sub-pixels in the second area 13 are located in the second area.
  • the thickness of the color-resist layer of the sub-pixels 12 in the first region is smaller than or equal to the thickness of the color-resist layer of the sub-pixels 13 in the second region.
  • the sub-pixels 12 in the first area and the sub-pixels 13 in the second area emit the same color.
  • the light emitting colors of the sub-pixels 12 in the first area and the sub-pixels 13 in the second area may all be red, green or blue, which is not limited in the present disclosure.
  • a half-tone mask can be used to expose and develop the color-resist layer, and by controlling the exposure amount, a thinner color-resist layer can be formed in the first region 10 than in the second region 11 .
  • the color resistance layer thickness of the sub-pixels 12 in the first region 10 is less than or equal to that of the sub-pixels in the second region 11
  • the thickness of the color resist layer is 13.
  • the sub-pixels 21 of the first color and the sub-pixels 22 of the second color may have various color combinations.
  • the light emission color of the first color sub-pixel 21 is green
  • the light emission color of the second color sub-pixel 22 is blue. That is, the first color sub-pixel 21 is a green sub-pixel G, and the second color sub-pixel 22 is a blue sub-pixel B.
  • the pixel unit shown in FIG. 2 is composed of a green sub-pixel G, a blue sub-pixel B and a red sub-pixel R.
  • the dotted line in FIG. 2 is the boundary line when the area ratio of the red sub-pixel R, the green sub-pixel G and the blue sub-pixel B is 1:1:1.
  • the transmittance of the green color resistance is the highest, generally around 60%; the transmittance of the blue color resistance is the lowest, generally around 60%. 10% or so. Therefore, on the basis of an area ratio of 1:1:1, by increasing the area of the green sub-pixel G and reducing the area of the blue sub-pixel B, the area of the green sub-pixel G is larger than the area of the blue sub-pixel B , can effectively improve the light penetration rate.
  • the transmittance of the liquid crystal display panel can be increased by 3% to 5%.
  • the transmittance of the green color resist is the highest, and the transmittance of the blue color resist is the lowest, when the luminescent color of the first color sub-pixel 21 is green, the second color sub-pixel 21 When the light emitting color of the pixel 22 is blue, the light transmittance can be improved to the greatest extent.
  • the light emitting color of the sub-pixel 21 of the first color is green
  • the light emitting color of the sub-pixel 22 of the second color is red. That is, the first color sub-pixel 21 is a green sub-pixel G, and the second color sub-pixel 22 is a red sub-pixel R.
  • the transmittance of the green color resist is the highest, generally around 60%, the transmittance of the red color resist is relatively low, generally Around 30%. Therefore, on the basis of an area ratio of 1:1:1, by increasing the area of the green sub-pixel G and reducing the area of the red sub-pixel R, so that the area of the green sub-pixel G is larger than the area of the red sub-pixel R, also It can effectively improve the penetration rate of light.
  • the first color sub-pixel 21 may also be a red sub-pixel R
  • the second color sub-pixel 22 may be a blue sub-pixel B. Since the transmittance of the red color resist is greater than that of the blue color resist, by setting the area of the red sub-pixel R larger than the area of the blue sub-pixel B, the transmittance of light can also be effectively improved.
  • the plurality of sub-pixels 20 may further include a third-color sub-pixel 31, and the transmittance of the third-color sub-pixel 31 is greater than that of the second-color sub-pixel 22. , and less than the transmittance of the sub-pixel 21 of the first color, the area of the sub-pixel 31 of the third color is larger than or equal to the area of the sub-pixel 22 of the second color, and smaller than or equal to the area of the sub-pixel 21 of the first color.
  • the light emission color of the first color sub-pixel 21 is green
  • the light emission color of the second color sub-pixel 22 is blue
  • the light emission color of the third color sub-pixel 31 is red. That is, the first color sub-pixel 21 is a green sub-pixel G
  • the second color sub-pixel 22 is a blue sub-pixel B
  • the third color sub-pixel 31 is a red sub-pixel R.
  • the dotted line in FIG. 3 is the boundary line when the area ratio of the green sub-pixel G, the blue sub-pixel B and the red sub-pixel R is 1:1:1.
  • the area of the red sub-pixel R can remain unchanged; or the area of the red sub-pixel R can be increased, but the increase ratio does not exceed the green sub-pixel G, so that the area of the red sub-pixel R is smaller than or equal to the green sub-pixel
  • the area of the pixel G; or the area of the red sub-pixel R can also be reduced, as shown in Figure 3, but the reduction ratio does not exceed the blue sub-pixel B, so that the area of the red sub-pixel R is greater than or equal to the blue sub-pixel B area.
  • the transmittance of the liquid crystal display panel can be effectively improved by increasing the area of the sub-pixel with a larger color-resist transmittance and reducing the area of the sub-pixel with a smaller color-resist transmittance.
  • the liquid crystal display panel includes an array substrate 41 and a cell-matching substrate 42 that are oppositely arranged.
  • the array substrate 41 and the cell-matching substrate 42 can be bonded together by the sealant, so as to limit the liquid crystal in the area enclosed by the sealant.
  • the array substrate 41 may include a first substrate 43 , and a first electrode layer 44 , an insulating layer 45 and a second electrode layer 46 stacked on the side of the first substrate 43 close to the cell substrate 42 .
  • the first electrode layer 44 includes a touch electrode 441 and a pixel electrode 442 which are separately arranged, and the second electrode layer 46 includes a common electrode 461 , and the touch electrode 441 and the common electrode 461 are connected to the same voltage output terminal.
  • the touch electrode 441 and the pixel electrode 442 are located on the same layer and are insulated from each other, and the materials of the two can be the same or different.
  • the touch electrodes 441 are used for transmitting touch signals.
  • the pixel electrodes 442 are used to transmit display signals.
  • the touch electrodes 441 and the common electrodes 461 can be respectively connected to the common voltage output terminals.
  • the pixel electrode 442 may be connected to the drain of the thin film transistor in each sub-pixel 20 .
  • Liquid crystals are filled between the array substrate 41 and the counter-cell substrate 42 , and a horizontal electric field for driving liquid crystal deflection can be formed between the pixel electrodes 442 and the common electrodes 461 or the touch electrodes 441 .
  • the orthographic projection of the second electrode layer 46 on the first substrate 43 and the separation region BB' between the touch electrode 441 and the pixel electrode 442 on the first substrate 43 Orthographic projections have no overlap. In this way, at the position corresponding to the gap region BB', an effective horizontal electric field can be formed between the pixel electrode 442 and the touch electrode 441 to increase the deflection driving force of the liquid crystal molecules, thereby increasing the light transmittance.
  • FIG. 6 The position of the cross-sectional view shown in FIG. 5 on the array substrate is shown in FIG. 6 .
  • a shows the transmittance simulation results of the structure shown in Figure 4
  • Figure 7 b shows the transmittance simulation results of the structure shown in Figure 5, compared with the structure shown in Figure 4,
  • the transmittance of the structure shown in FIG. 5 is significantly improved in the gap region BB'.
  • FIG. 8 shows the liquid crystal deflection simulation results of the structure shown in FIG. 4
  • b in FIG. 8 shows the liquid crystal deflection simulation results of the structure shown in FIG. 5 .
  • the deflection angle of the liquid crystal molecules in the gap region BB′ is larger, so the light transmittance is higher.
  • the orthographic projection of the second electrode layer 46 on the first substrate 43 does not overlap with the orthographic projection of the touch electrode 441 on the first substrate 43 , so that the second electrode layer 46 can be avoided.
  • the second electrode layer 46 shields touch signals on the touch electrodes 441 to improve touch sensitivity.
  • the transmittance can be increased by 5% to 8%; for the case where three sub-pixels share one touch electrode 441, the transmittance can be Increase by 2% to 4%.
  • the liquid crystal display panel includes an array substrate 41 and a box-matching substrate 42 that are oppositely arranged, and an isolation barrier is also provided between the array substrate 41 and the box-matching substrate 42 .
  • the column 47 has a first surface s1 and a second surface s2 opposite to each other in the direction in which the array substrate 41 points to the cell substrate 42 , that is, in the first direction shown in the figure.
  • the isolation columns 47 are used to support the space between the array substrate 41 and the cell-aligning substrate 42 to maintain the uniformity and stability of the thickness of the liquid crystal cell.
  • the isolation columns 47 may be disposed on the array substrate 41 , in this case, the first surface s1 is a surface close to the array substrate 41 , and the second surface s2 is a surface far away from the array substrate 41 .
  • the spacer column 47 can also be arranged on the box substrate 42, as shown in Figure 4 and Figure 5, the first surface s1 is the surface away from the side of the array substrate 41, and the second surface s2 is the side close to the array substrate 41. surface.
  • the edge of the first surface s1 is convex relative to the edge of the orthographic projection of the second surface s2 on the first surface s1, and the amount of protrusion d1 can be greater than 3 ⁇ m or 4 ⁇ m and less than or equal to 5 ⁇ m .
  • the edge of the first surface s1 protrudes relative to the edge of the orthographic projection of the second surface s2 on the first surface s1 , and the amount of protrusion d1 may be less than or equal to 3 ⁇ m.
  • a light-shielding layer 48 may be provided at the light leakage position of the liquid crystal display panel to ensure picture quality.
  • the shading can be reduced without losing the contact area (that is, the area of the second surface s2).
  • the coverage area of the layer 48 increases the aperture ratio, thereby increasing the transmittance of the liquid crystal display panel.
  • the transmittance can be increased by 2% to 4% by adopting the isolation column 47 structure provided by this implementation.
  • the light shielding layer 48 may be disposed on the array substrate 41 and/or the cell substrate 42 . That is, the light-shielding layer 48 can be disposed on the array substrate 41 , or on the box-mounting substrate 42 (as shown in FIG. 4 and FIG. 5 ), or partially on the array substrate 41 and partially on the box-mounting substrate 42 .
  • the edge of the orthographic projection of the light-shielding layer 48 on the plane where the first surface s1 is located protrudes relative to the edge of the first surface s1
  • the amount of protrusion d2 may be greater than or equal to 2 ⁇ m and less than or equal to 10 ⁇ m.
  • the protrusion amount d2 may be 3 ⁇ m, 4 ⁇ m, or 5 ⁇ m.
  • the spacer column 47 is completely covered by setting the light shielding layer 48, so as to achieve the effect of shielding light leakage.
  • the liquid crystal display panel provided by the present disclosure can make the transmittance of the first region reach 15% without increasing the number of mask plates and process difficulty, and reduce the loss of color gamut caused by the thinning of the color resist layer. It can meet the imaging requirements and display requirements of the camera area under the screen at the same time.
  • the present disclosure also provides a display module, as shown in FIG. 10 , the display module includes a backlight module 101 and a liquid crystal display panel 102 as provided in any embodiment, the backlight module 101 is away from the light output of the liquid crystal display panel 102 The backlight module 101 is used to provide backlight for the liquid crystal display panel 102 .
  • the backlight module 101 has an opening area, the orthographic projection of the opening area on the display panel is located in the first area 10, and the opening area is used for placing a camera module such as a camera.
  • the photographing module is used for photographing images.
  • the display module has the advantages of the front liquid crystal display panel 102 .
  • the backlight module 101 can provide backlight to the second area 11 of the liquid crystal display panel 102 , and can also provide backlight to the first area 10 .
  • the color gamut of the first region 10 is low, for example, the NTSC (National Television Standards Committee, National Television Standards Committee, National Television Standards Committee) color gamut is 70%, NTSC color gamut of the first region 10 may be only 45%.
  • NTSC National Television Standards Committee, National Television Standards Committee, National Television Standards Committee
  • the backlight module 101 may include a first light source 103, and the first light source 103 may be, for example, a light-emitting diode (Light-Emitting Diode, LED).
  • the first light source 103 may be, for example, a light-emitting diode (Light-Emitting Diode, LED).
  • the backlight module 101 may further include a light guide plate 104 .
  • the backlight module 101 can be side-in; correspondingly, the first light source 103 can be located on the end face of the light guide plate 104 along the thickness direction, as shown in FIG. side end face.
  • the backlight module 101 can also be a direct type; correspondingly, the first light source 103 can be located on the surface of the light guide plate 104 facing away from the liquid crystal display panel.
  • the present disclosure does not limit the specific position of the first light source in the backlight module.
  • the first light source 103 may be a light emitting diode using red and green phosphors.
  • a blue LED chip can be used, and the blue light generated by the blue LED chip can excite phosphors of different colors to achieve the effect of white light.
  • Commonly used phosphors include yellow phosphors, yellow-red phosphors, red-green phosphors, and potassium fluorosilicate phosphors.
  • red and green phosphors can appropriately reduce the thickness of the color-resist layer, which can not only meet the needs of high-color gamut products, but also increase the transmittance by about 40%. Since the adoption of this solution can improve the utilization rate of the backlight, in some products with high brightness and low power consumption, there is no need to install an APF polarizer, thereby reducing the cost.
  • the backlight module 101 may further include at least one prism sheet 105 , and the at least one prism sheet 105 is located on the light emitting side of the light guide plate 104 .
  • the light emitting side of the light guide plate 104 is the side of the light guide plate 104 close to the liquid crystal display panel 102 .
  • the prism sheet 105 may include a base film 1101, and a plurality of prism structures arranged on the side of the base film 1101 away from the light guide plate 104, the plurality of prism structures include at least one first prism structure 1102 and at least one second prism structure 1102.
  • At least one second prism structure 1103 is located between at least one first prism structure 1102 and the hole area, the first prism structure 1102 is used to make the light incident on the first prism structure 1102 exit to the second area 11 , the second prism structure 1103 is used to make at least part of the light incident on the second prism structure 1103 exit to the first region 10 .
  • the first prism structure 1102 and the second prism structure 1103 are triangular protrusions near the side of the liquid crystal display panel 102 , which is not limited in the present disclosure.
  • the first prism structure 1102 is located on the side of the boundary line a1 away from the hole area, and the incident light that originally diverges in all directions enters with a smaller divergence angle after passing through the first prism structure 1102 To the second region 11 of the liquid crystal display panel 102 , the effect of axial brightness enhancement is achieved.
  • the second prism structure 1103 is located on the side of the boundary line a1 close to the opening area. After the incident light diverging in various directions passes through the second prism structure 1103 , part or all of the light is obliquely incident on the first area 10 of the LCD panel 102 , thereby providing backlight for the first area 10 of the LCD panel 102 .
  • the prism structure in the prism sheet 105 is designed differently, so that the prism structure close to the hole area can deflect the incident light to the direction of the first area, thereby improving the brightness of the first area 10 .
  • each prism structure has a slope s3 close to the opening area, and the angle between the slope s3 and the base film 1101 is a slope angle ⁇ .
  • the slope angle ⁇ of the second prism structure 1103 away from the opening area may be greater than the slope angle ⁇ of the second prism structure 1103 near the opening area, and smaller than the slope angle ⁇ of the first prism structure 1102 .
  • the slope angle ⁇ of the second prism structure 1103 is smaller than the slope angle ⁇ of the first prism structure 1102 . Moreover, in the direction close to the hole area (as indicated by the arrow in FIG. 11 ), the slope angle ⁇ of the second prism structure 1103 gradually decreases.
  • the slope angles ⁇ of the first prism structures 1102 are the same, for example, the slope angles ⁇ of the first prism structures 1102 are all 45°. In this case, the slope angles ⁇ of the second prism structures 1103 are all smaller than 45°.
  • the backlight module 101 can also include a diffusion sheet 1201 between the light guide plate 104 and the prism sheet 105, and the backlight module 101 includes two prism sheets 105, which are respectively an upper prism sheet 1202 and a lower prism sheet 1203 , the lower prism sheet 1203 is located on the side of the upper prism sheet 1202 close to the light guide plate 104 , the structures of the upper prism sheet 1202 and the lower prism sheet 1203 may be the same or different, which is not limited in this disclosure.
  • the first light L1 and the second light L2 exit from the light emitting surface of the light guide plate 104 at the same angle.
  • the first light L1 passes through the diffusion sheet 1201, the first prism structure 1102 of the lower prism sheet 1203, and the first prism structure 1102 of the upper prism sheet 1202 in sequence, and finally the first light L1 enters the second prism of the liquid crystal display panel 102 in the normal direction.
  • Area 11 The second light L2 sequentially passes through the diffusion sheet 1201 , the second prism structure 1103 of the lower prism sheet 1203 and the second prism structure 1103 of the upper prism sheet 1202 , and finally the second light L2 obliquely enters the first region 10 of the liquid crystal display panel 102 .
  • the backlight module 101 may further include a second light source 106 .
  • the second light source 106 can be, for example, a light emitting diode.
  • several LED lights or MINI LED lights can be arranged around the hole area, and the specific number can be determined according to the size of the hole area.
  • the second light source 106 may be located on the end face of the light guide plate 104 near the opening area.
  • the setting position of the second light source 106 corresponds to the second prism structure 1103, thereby increasing the brightness of the backlight in this area, so that the light attenuation caused by deflecting the incident light to the first area 10 by the second prism structure 1103 is compensated, and the brightness of the backlight is improved. Uniformity.
  • the second light source 106 may be a light emitting diode using red and green phosphors.
  • the second light source 106 may be the same as or different from the first light source 103 .
  • both the second light source 106 and the first light source 103 use light-emitting diodes with red and green phosphors, the color gamut of the display screen can be improved.
  • the present disclosure also provides an electronic device, which includes a camera module and the display module provided in any one of the embodiments, wherein the camera module is located in the opening area of the backlight module.
  • the electronic device has the advantages of the front liquid crystal display panel.
  • the electronic device in this embodiment can be any product or component with 2D or 3D display function, such as electronic paper, mobile phone, tablet computer, television, notebook computer, digital photo frame, navigator, etc.
  • references herein to "one embodiment,” “an embodiment,” or “one or more embodiments” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Additionally, please note that examples of the word “in one embodiment” herein do not necessarily all refer to the same embodiment.
  • any reference signs placed between parentheses shall not be construed as limiting the claim.
  • the word “comprising” does not exclude the presence of elements or steps not listed in a claim.
  • the word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements.
  • the disclosure can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means can be embodied by one and the same item of hardware.
  • the use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names.

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Abstract

液晶显示面板、显示模组及电子设备，涉及显示技术领域。液晶显示面板包括第一区域（10）和第二区域（11），第一区域（10）的透过率大于第二区域（11）的透过率；液晶显示面板包括多个子像素（20）；多个子像素（20）包括第一颜色子像素（21）和第二颜色子像素（22），第一颜色子像素（21）的透过率大于第二颜色子像素（22）的透过率，第一颜色子像素（21）的面积大于第二颜色子像素（22）的面积；多个子像素（20）还包括颜色相同的第一区域子像素（12）和第二区域子像素（13），第一区域子像素（12）位于第一区域（10）内，第二区域子像素（13）位于第二区域（11）内，第一区域子像素（12）的色阻层厚度小于或等于第二区域子像素（13）的色阻层厚度。

Description

液晶显示面板、显示模组及电子设备 技术领域
本公开涉及显示技术领域，特别是涉及一种液晶显示面板、显示模组及电子设备。
背景技术
液晶显示面板作为一种广泛使用的平面显示面板，在显示领域占有重要地位。另外，屏下摄像头是将前置摄像头完全内置在屏幕之下，可以提高屏占比。
概述
本公开提供了一种液晶显示面板，所述液晶显示面板包括第一区域和第二区域，所述第一区域的透过率大于所述第二区域的透过率；
所述液晶显示面板包括多个子像素；
所述多个子像素包括第一颜色子像素和第二颜色子像素，所述第一颜色子像素的透过率大于所述第二颜色子像素的透过率，所述第一颜色子像素的面积大于所述第二颜色子像素的面积；
所述多个子像素还包括颜色相同的第一区域子像素和第二区域子像素，所述第一区域子像素位于所述第一区域内，所述第二区域子像素位于所述第二区域内，所述第一区域子像素的色阻层厚度小于或等于所述第二区域子像素的色阻层厚度。
在一种可选的实现方式中，所述第一颜色子像素的发光颜色为绿色，所述第二颜色子像素的发光颜色为红色或蓝色。
在一种可选的实现方式中，所述多个子像素还包括第三颜色子像素，所述第三颜色子像素的透过率大于所述第二颜色子像素的透过率，且小于所述第一颜色子像素的透过率，所述第三颜色子像素的面积大于或等于所述第二颜色子像素的面积，且小于或等于所述第一颜色子像素的面积。
在一种可选的实现方式中，所述第一颜色子像素的发光颜色为绿色，所 述第二颜色子像素的发光颜色为蓝色，所述第三颜色子像素的发光颜色为红色。
在一种可选的实现方式中，所述液晶显示面板包括相对设置的阵列基板和对盒基板，所述阵列基板包括第一衬底，以及层叠设置在所述第一衬底靠近所述对盒基板一侧的第一电极层、绝缘层和第二电极层；
其中，所述第一电极层包括分立设置的触控电极和像素电极，所述第二电极层包括公共电极，所述触控电极与所述公共电极连接同一电压输出端；
所述第二电极层在所述第一衬底上的正投影与所述触控电极在所述第一衬底上的正投影无交叠，所述第二电极层在所述第一衬底上的正投影与所述触控电极和所述像素电极之间的间隔区域在所述第一衬底上的正投影无交叠。
在一种可选的实现方式中，所述液晶显示面板包括相对设置的阵列基板和对盒基板，在所述阵列基板和所述对盒基板之间设置有隔离柱，在所述阵列基板指向所述对盒基板的方向上，所述隔离柱具有相对设置的第一表面和第二表面；
所述第一表面的边缘相对于所述第二表面在所述第一表面上的正投影边缘凸出，且凸出量小于或等于3μm。
在一种可选的实现方式中，所述液晶显示面板还包括遮光层，所述遮光层设置在所述阵列基板和/或所述对盒基板上，所述遮光层在所述第一表面所在平面上的正投影边缘相对于所述第一表面的边缘凸出，且凸出量大于或等于2μm，且小于或等于10μm。
本公开提供了一种显示模组，包括背光模组以及如任一项所述的液晶显示面板，所述背光模组背离所述液晶显示面板的出光侧设置，所述背光模组用于向所述液晶显示面板提供背光；
其中，所述背光模组具有开孔区域，所述开孔区域在所述显示面板上的正投影位于所述第一区域内，所述开孔区域用于放置拍摄模组，所述拍摄模组用于拍摄图像。
在一种可选的实现方式中，所述背光模组包括第一光源，所述第一光源为采用红绿色荧光粉的发光二极管。
在一种可选的实现方式中，所述背光模组包括导光板和至少一个棱镜片，所述至少一个棱镜片位于所述导光板的出光侧；
其中，所述棱镜片包括基膜，以及设置在所述基膜背离所述导光板一侧的多个棱镜结构，所述多个棱镜结构包括至少一个第一棱镜结构和至少一个第二棱镜结构，所述至少一个第二棱镜结构位于所述至少一个第一棱镜结构与所述开孔区域之间，所述第一棱镜结构用于使入射至所述第一棱镜结构上的光线向所述第二区域出射，所述第二棱镜结构用于使入射至所述第二棱镜结构上的至少部分光线向所述第一区域出射。
在一种可选的实现方式中，各所述棱镜结构具有靠近所述开孔区域的斜面，所述斜面与所述基膜之间的夹角为坡度角；
远离所述开孔区域的第二棱镜结构的坡度角大于靠近所述开孔区域的第二棱镜结构的坡度角，且小于所述第一棱镜结构的坡度角。
在一种可选的实现方式中，各所述第一棱镜结构的坡度角相同。
在一种可选的实现方式中，所述第一棱镜结构的坡度角为45°。
在一种可选的实现方式中，所述背光模组还包括第二光源，所述第二光源位于所述导光板靠近所述开孔区域一侧的端面。
在一种可选的实现方式中，所述第二光源为采用红绿色荧光粉的发光二极管。
本公开提供了一种电子设备，其中，所述电子设备包括拍摄模组以及如任一项所述的显示模组，所述拍摄模组位于所述背光模组的开孔区域内。
上述说明仅是本公开技术方案的概述，为了能够更清楚了解本公开的技术手段，而可依照说明书的内容予以实施，并且为了让本公开的上述和其它目的、特征和优点能够更明显易懂，以下特举本公开的具体实施方式。
附图简述
为了更清楚地说明本公开实施例或相关技术中的技术方案，下面将对实施例或相关技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。需要说明的是，附图中的比例仅作为示意并不代表实际比例。
图1示意性地示出了一种液晶显示面板的平面结构示意图；
图2示意性地示出了一种液晶显示面板中的子像素结构示意图；
图3示意性地示出了另一种液晶显示面板中的子像素结构示意图；
图4示意性地示出了一种液晶显示面板的剖面结构示意图；
图5示意性地示出了另一种液晶显示面板的剖面结构示意图；
图6示意性地示出了一种液晶显示面板中的阵列基板的平面结构示意图；
图7示意性地示出了两种液晶显示面板的透过率模拟结果；
图8示意性地示出了两种液晶显示面板的液晶偏转模拟结果；
图9示意性地示出了一种隔离柱与遮光层的平面结构示意图；
图10示意性地示出了一种显示模组的剖面结构示意图；
图11示意性地示出了一种棱镜片的剖面结构示意图；
图12示意性地示出了一种背光模组的剖面结构示意图。
详细描述
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
相关技术中，液晶显示面板的透过率一般为6％左右，达不到设置屏下摄像头大于或等于15％的透过率需求。因此，为了能够设置屏下摄像头，需要提升液晶显示面板的透过率。
本公开一实施例提供了一种液晶显示面板，参照图1，该液晶显示面板包括第一区域10和第二区域11，第一区域10的透过率大于第二区域11的透过率。
具体地，第一区域10可以屏下摄像头区域，第二区域11可以为普通显示区域。
第二区域11例如可以包围第一区域10设置，如图1所示出的，本公开对此不作限定。
参照图2，液晶显示面板包括多个子像素20。多个子像素20例如可以阵列排布在液晶显示面板中。
本实施例中，多个子像素20包括第一颜色子像素21和第二颜色子像素 22，第一颜色子像素21的透过率大于第二颜色子像素22的透过率，第一颜色子像素21的面积大于第二颜色子像素22的面积。
其中，第一颜色子像素21和第二颜色子像素22的发光颜色不同。第一颜色子像素21的发光颜色可以为红色、绿色或蓝色等颜色。第二颜色子像素22的发光颜色可以为红色、绿色或蓝色等颜色。
通过将发光颜色不同的第一颜色子像素21和第二颜色子像素22的面积进行进行差异化设计，使透过率高的第一颜色子像素21的面积大于透过率较低的第二颜色子像素22的面积，与第一颜色子像素21和第二颜色子像素22面积相同的情况相比，可以提高液晶显示面板的透过率。
如图1所示，多个子像素20还包括颜色相同的第一区域子像素12和第二区域子像素13，第一区域子像素12位于第一区域10内，第二区域子像素13位于第二区域11内，第一区域子像素12的色阻层厚度小于或等于第二区域子像素13的色阻层厚度。
其中，第一区域子像素12和第二区域子像素13的发光颜色相同。第一区域子像素12和第二区域子像素13的发光颜色可以均为红色、绿色或蓝色等颜色，本公开对此不作限定。
在具体实现中，可以采用半色调掩膜版对色阻层进行曝光和显影，通过控制曝光量，实现在第一区域10形成相对于第二区域11厚度较薄的色阻层。
对于发光颜色相同的第一区域子像素12和第二区域子像素13，位于第一区域10的第一区域子像素12的色阻层厚度小于或等于位于第二区域11的第二区域子像素13的色阻层厚度，通过在第一区域10的子像素20中设置厚度较薄的色阻层，可以提高第一区域10的透过率，提高屏下摄像头的成像质量。
在具体实现中，第一颜色子像素21和第二颜色子像素22可以有多种颜色组合方式。
在一种可选的实现方式中，如图2所示，第一颜色子像素21的发光颜色为绿色，第二颜色子像素22的发光颜色为蓝色。即第一颜色子像素21为绿色子像素G，第二颜色子像素22为蓝色子像素B。
图2所示的像素单元由绿色子像素G、蓝色子像素B和红色子像素R构成。图2中的虚线为红色子像素R、绿色子像素G和蓝色子像素B的面积比值为1:1:1时的边界线。
在由绿色子像素G、蓝色子像素B和红色子像素R构成的像素单元中，由于绿色色阻的透过率最高，一般在60％上下；蓝色色阻的透过率最低，一般在10％左右。因此，在面积比例为1:1:1的基础上，通过增大绿色子像素G的面积，减小蓝色子像素B的面积，使得绿色子像素G的面积大于蓝色子像素B的面积，可以有效地提升光线的穿透率。
当绿色子像素G的面积与蓝色子像素B的面积之比为1.1:0.9时，液晶显示面板的透过率可以提升3％～5％。
在像素单元的总面积不变的情况下，由于绿色色阻的透过率最高，蓝色色阻的透过率最低，因此，当第一颜色子像素21的发光颜色为绿色，第二颜色子像素22的发光颜色为蓝色时，可以最大化地提升光线透过率。
在另一种可选的实现方式中，第一颜色子像素21的发光颜色为绿色，第二颜色子像素22的发光颜色为红色。即第一颜色子像素21为绿色子像素G，第二颜色子像素22为红色子像素R。
在由绿色子像素G、蓝色子像素B和红色子像素R构成的像素单元中，由于绿色色阻的透过率最高，一般在60％上下，红色色阻的透过率较低，一般在30％左右。因此，在面积比例为1:1:1的基础上，通过增大绿色子像素G的面积，减小红色子像素R的面积，使得绿色子像素G的面积大于红色子像素R的面积，也可以有效地提升光线的穿透率。
在具体实现中，第一颜色子像素21还可以为红色子像素R，第二颜色子像素22为蓝色子像素B。由于红色色阻的透过率大于蓝色色阻的透过率，因此，通过设置红色子像素R的面积大于蓝色子像素B的面积，也可以有效地提升光线的穿透率。
在又一种可选的实现方式中，参照图3，多个子像素20还可以包括第三颜色子像素31，第三颜色子像素31的透过率大于第二颜色子像素22的透过率，且小于第一颜色子像素21的透过率，第三颜色子像素31的面积大于或等于第二颜色子像素22的面积，且小于或等于第一颜色子像素21的面积。
可选地，如图3所示，第一颜色子像素21的发光颜色为绿色，第二颜色子像素22的发光颜色为蓝色，第三颜色子像素31的发光颜色为红色。即第一颜色子像素21为绿色子像素G，第二颜色子像素22为蓝色子像素B，第三颜色子像素31为红色子像素R。
图3中的虚线为绿色子像素G、蓝色子像素B和红色子像素R的面积比值为1:1:1时的边界线。
本实现方式中，在面积比例为1:1:1的基础上，通过增大绿色子像素G的面积，减小蓝色子像素B的面积，使得绿色子像素G的面积大于蓝色子像素B的面积，提高光线透过率。
本实现方式中，红色子像素R的面积可以保持不变；或者可以增大红色子像素R的面积，但增大比例不超过绿色子像素G，使得红色子像素R的面积小于或等于绿色子像素G的面积；或者还可以缩小红色子像素R的面积，如图3所示出的，但缩小比例不超过蓝色子像素B，使得红色子像素R的面积大于或等于蓝色子像素B的面积。
本实现方式通过增大色阻透过率较大的子像素的面积，缩小色阻透过率较小的子像素的面积，可以有效地提升液晶显示面板的透过率。
在一种可选的实现方式中，参照图4和图5，液晶显示面板包括相对设置的阵列基板41和对盒基板42。阵列基板41和对盒基板42可以通过封框胶对合在一起，从而将液晶限定在封框胶围成的区域内。阵列基板41可以包括第一衬底43，以及层叠设置在第一衬底43靠近对盒基板42一侧的第一电极层44、绝缘层45和第二电极层46。
其中，第一电极层44包括分立设置的触控电极441和像素电极442，第二电极层46包括公共电极461，触控电极441与公共电极461连接同一电压输出端。
其中，触控电极441和像素电极442位于同一层且相互绝缘，二者材料可以相同或不同。触控电极441用于传输触控信号。像素电极442用于传输显示信号。
触控电极441与公共电极461可以分别连接公共电压输出端。像素电极442可以连接各子像素20中的薄膜晶体管的漏极。
在阵列基板41和对盒基板42之间填充有液晶，像素电极442与公共电极461或触控电极441之间能够形成用于驱动液晶偏转的水平电场。
如图4所示，在触控电极441和像素电极442之间存在间隔区域BB’。发明人发现，当公共电极461与间隔区域BB’在第一衬底43上的正投影有交叠时，该位置的公共电极461会屏蔽像素电极442与触控电极441之间形成 的水平电场，导致液晶分子偏转的驱动力不足，进而导致透过率的降低。
为了解决上述问题，如图5所示，第二电极层46在第一衬底43上的正投影与触控电极441和像素电极442之间的间隔区域BB’在第一衬底43上的正投影无交叠。这样，在间隔区域BB’对应的位置，像素电极442与触控电极441之间能够形成有效的水平电场，提高液晶分子的偏转驱动力，从而提高光线透过率。
图5示出的剖面图在阵列基板上的位置如图6所示。参照图7中a示出了图4所示结构的透过率模拟结果，参照图7中b示出了图5所示结构的透过率模拟结果，与图4所示的结构相比，图5所示的结构在间隔区域BB’的透过率明显提高。
参照图8中的a示出了图4所示结构的液晶偏转模拟结果，参照图8中的b示出了图5所示结构的液晶偏转模拟结果，与图4所示的结构相比，图5所示的结构在间隔区域BB’的液晶分子偏转角度更大，因此光线的透过率较高。
另外，如图4和图5所示，第二电极层46在第一衬底43上的正投影与触控电极441在第一衬底43上的正投影无交叠，这样，可以避免第二电极层46屏蔽触控电极441上的触控信号，提高触控灵敏度。
采用本实现方式提供的技术方案，对于每个子像素设置一个触控电极441的情况，透过率可以提升5％～8％；对于三个子像素共用一个触控电极441的情况，透过率可以提升2％～4％。
在一种可选的实现方式中，如图4和图5所示，液晶显示面板包括相对设置的阵列基板41和对盒基板42，在阵列基板41和对盒基板42之间还设置有隔离柱47，在阵列基板41指向对盒基板42的方向上，即在图中所示的第一方向上，隔离柱47具有相对设置的第一表面s1和第二表面s2。
隔离柱47用于支撑阵列基板41和对盒基板42之间的空间，保持液晶盒厚的均一性和稳定性。
其中，隔离柱47可以设置在阵列基板41上，这种情况下，第一表面s1为靠近阵列基板41一侧的表面，第二表面s2为远离阵列基板41一侧的表面。隔离柱47还可以设置在对盒基板42上，如图4和图5所示出的，第一表面s1为远离阵列基板41一侧的表面，第二表面s2为靠近阵列基板41一侧的表 面。
如图9中的a所示，第一表面s1的边缘相对于第二表面s2在第一表面s1上的正投影边缘凸出，且凸出量d1可以大于3μm或4μm，且小于或等于5μm。
进一步地，如图9中的b所示，第一表面s1的边缘相对于第二表面s2在第一表面s1上的正投影边缘凸出，且凸出量d1可以小于或等于3μm。
由于靠近隔离柱47的液晶分子排列混乱，因此会出现漏光。在具体实现中，如图4和图5所示，可以在液晶显示面板的漏光位置设置遮光层48，以保证画面品质。
如图9中的b所示，通过缩小第一表面s1边缘相对于第二表面s2边缘的凸出量d1，可以在不损失接触面积(即第二表面s2的面积)的前提下，缩小遮光层48的覆盖面积，提高开口率，从而提升液晶显示面板的透过率。对于像素密度为250像素/英寸的产品，采用本实现方式提供的隔离柱47结构，透过率可以提升2％～4％。
在具体实现中，遮光层48可以设置在阵列基板41和/或对盒基板42上。即遮光层48可以设置在阵列基板41上，或者设置在对盒基板42上(如图4和图5所示)，或者部分设置在阵列基板41上，部分设置在对盒基板42上。
其中，遮光层48在第一表面s1所在平面上的正投影边缘相对于第一表面s1的边缘凸出，且凸出量d2可以大于或等于2μm，且小于或等于10μm。例如，该凸出量d2可以为3μm、4μm或者5μm等。通过设置遮光层48将隔离柱47进行完全覆盖，从而达到遮挡漏光的效果。
需要说明的是，上述的一个边缘相对于另一个边缘的凸出量，指的是两个边缘之间的距离。
本公开提供的液晶显示面板，在不增加掩膜版数量和工艺难度的基础上，可以使第一区域的透过率达到15％，降低由于色阻层厚度减薄而导致的色域损失，能够同时满足屏下摄像头区域的成像需求和显示需求。
本公开还提供了一种显示模组，如图10所示，该显示模组包括背光模组101以及如任一实施例提供的液晶显示面板102，背光模组101背离液晶显示面板102的出光侧设置，背光模组101用于向液晶显示面板102提供背光。
其中，背光模组101具有开孔区域，开孔区域在显示面板上的正投影位于第一区域10内，开孔区域用于放置拍摄模组如摄像头等。该拍摄模组用于拍摄图像。
本领域技术人员可以理解，该显示模组具有前面液晶显示面板102的优点。
背光模组101可以向液晶显示面板102的第二区域11提供背光，还可以为第一区域10提供背光。
在液晶显示面板102中，由于位于第一区域10的子像素20的色阻层厚度较薄，导致第一区域10的色域较低，例如，第二区域11的NTSC(National Television Standards Committee，美国国家电视标准委员会)色域为70％，第一区域10的NTSC色域可能仅为45％。
如图10所示，背光模组101可以包括第一光源103，第一光源103例如可以为发光二极管(Light-Emitting Diode，LED)。
在具体实现中，背光模组101还可以包括导光板104。背光模组101可以是侧入式；相应地，第一光源103可以位于导光板104沿厚度方向的端面上，如图10所示出的，第一光源103位于导光板104远离开孔区域一侧的端面上。背光模组101还可以是直下式；相应地，第一光源103可以位于导光板104背离液晶显示面板一侧的表面上。本公开对第一光源在背光模组中的具体位置不作限定。
可选地，第一光源103可以为采用红绿色荧光粉的发光二极管。
为了使第一光源103产生白光，例如可以采用蓝光LED芯片，蓝光LED芯片产生的蓝光激发不同颜色荧光粉可以达到白光的效果。常用的荧光粉有黄色荧光粉、黄红色荧光粉、红绿色荧光粉以及氟硅酸钾荧光粉等。
采用红绿色荧光粉，可以适当降低色阻层厚度，既能满足高色域产品需求，还可以提升透过率40％左右。由于采用本方案可以提高背光的利用率，因此在一些高亮度低功耗的产品中，无需设置APF偏光片，从而可以降低成本。
可选地，如图10所示，背光模组101还可以包括至少一个棱镜片105，至少一个棱镜片105位于导光板104的出光侧。导光板104的出光侧即导光板104靠近液晶显示面板102的一侧。
可选地，参照图11示出了一种棱镜片的剖面结构示意图。如图11所示，棱镜片105可以包括基膜1101，以及设置在基膜1101背离导光板104一侧的多个棱镜结构，多个棱镜结构包括至少一个第一棱镜结构1102和至少一个第二棱镜结构1103，至少一个第二棱镜结构1103位于至少一个第一棱镜结构1102与开孔区域之间，第一棱镜结构1102用于使入射至第一棱镜结构1102上的光线向第二区域11出射，第二棱镜结构1103用于使入射至第二棱镜结构1103上的至少部分光线向第一区域10出射。
如图10和图11所示，在棱镜片105中，第一棱镜结构1102和第二棱镜结构1103为靠近液晶显示面板102一侧的三角形凸起，本公开对此不作限定。
如图10和图11所示出，第一棱镜结构1102位于分界线a1远离开孔区域的一侧，原本向各个方向发散的入射光线经第一棱镜结构1102之后，以较小的发散角入射至液晶显示面板102的第二区域11，达到轴向亮度增强的效果。
如图10和图11所示，第二棱镜结构1103位于分界线a1靠近开孔区域的一侧。原本向各个方向发散的入射光线经第二棱镜结构1103之后，部分或全部光线斜入射至液晶显示面板102的第一区域10，从而为液晶显示面板102的第一区域10提供背光。
本实现方式中，通过对棱镜片105中的棱镜结构进行差异化设计，使得靠近开孔区域的棱镜结构能够将入射光线偏转至射向第一区域的方向，从而提高第一区域10的亮度。
可选地，如图11所示，各棱镜结构具有靠近开孔区域的斜面s3，斜面s3与基膜1101之间的夹角为坡度角θ。其中，远离开孔区域的第二棱镜结构1103的坡度角θ可以大于靠近开孔区域的第二棱镜结构1103的坡度角θ，且小于第一棱镜结构1102的坡度角θ。
也就是，第二棱镜结构1103的坡度角θ小于第一棱镜结构1102的坡度角θ。并且，在靠近开孔区域的方向(如图11中的箭头方向)上，第二棱镜结构1103的坡度角θ逐渐减小。
可选地，各第一棱镜结构1102的坡度角θ相同，例如，第一棱镜结构1102的坡度角θ均为45°。这种情况下，第二棱镜结构1103的坡度角θ均小于45°。
参照图12示出了第一光线L1和第二光线L2的传播路径。如图12所示，背光模组101还可以包括位于导光板104和棱镜片105之间的扩散片1201，并且背光模组101包括两个棱镜片105，分别为上棱镜片1202和下棱镜片1203，下棱镜片1203位于上棱镜片1202靠近导光板104的一侧，上棱镜片1202和下棱镜片1203的结构可以相同或不同，本公开对此不作限定。
其中，第一光线L1和第二光线L2以相同的角度从导光板104的出光面出射。第一光线L1依次经过扩散片1201、下棱镜片1203的第一棱镜结构1102和上棱镜片1202的第一棱镜结构1102，最终第一光线L1以法线方向入射至液晶显示面板102的第二区域11。第二光线L2依次经过扩散片1201、下棱镜片1203的第二棱镜结构1103和上棱镜片1202的第二棱镜结构1103，最终第二光线L2斜入射至液晶显示面板102的第一区域10。
可选地，如图10所示，背光模组101还可以包括第二光源106。
第二光源106例如可以为发光二极管。在具体实现中，可以在开孔区域周边设置若干颗LED灯或者MINI LED灯，具体数量可以根据开孔区域的大小确定。
具体地，第二光源106可以位于导光板104靠近开孔区域一侧的端面上。第二光源106的设置位置与第二棱镜结构1103对应，从而提升该区域的背光亮度，使得由于第二棱镜结构1103将入射光线偏转至第一区域10而导致的光衰减得到补偿，提高背光亮度均一性。
可选地，第二光源106可以为采用红绿色荧光粉的发光二极管。在具体实现中，第二光源106与第一光源103可以相同或不同。当第二光源106与第一光源103均采用红绿色荧光粉的发光二极管时，可以提高显示画面的色域。
本公开还提供了一种电子设备，该电子设备包括拍摄模组以及如任一实施例提供的显示模组，其中，拍摄模组位于背光模组的开孔区域内。
本领域技术人员可以理解，该电子设备具有前面液晶显示面板的优点。
需要说明的是，本实施例中的电子设备可以为：电子纸、手机、平板电脑、电视机、笔记本电脑、数码相框、导航仪等任何具有2D或3D显示功能的产品或部件。
本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。
最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、商品或者设备中还存在另外的相同要素。
以上对本公开所提供的一种液晶显示面板、显示模组及电子设备进行了详细介绍，本文中应用了具体个例对本公开的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本公开的方法及其核心思想；同时，对于本领域的一般技术人员，依据本公开的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本公开的限制。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。
本文中所称的“一个实施例”、“实施例”或者“一个或者多个实施例”意味着，结合实施例描述的特定特征、结构或者特性包括在本公开的至少一个实施例中。此外，请注意，这里“在一个实施例中”的词语例子不一定全指同一个实施例。
在此处所提供的说明书中，说明了大量具体细节。然而，能够理解，本 公开的实施例可以在没有这些具体细节的情况下被实践。在一些实例中，并未详细示出公知的方法、结构和技术，以便不模糊对本说明书的理解。
在权利要求中，不应将位于括号之间的任何参考符号构造成对权利要求的限制。单词“包含”不排除存在未列在权利要求中的元件或步骤。位于元件之前的单词“一”或“一个”不排除存在多个这样的元件。本公开可以借助于包括有若干不同元件的硬件以及借助于适当编程的计算机来实现。在列举了若干装置的单元权利要求中，这些装置中的若干个可以是通过同一个硬件项来具体体现。单词第一、第二、以及第三等的使用不表示任何顺序。可将这些单词解释为名称。
最后应说明的是：以上实施例仅用以说明本公开的技术方案，而非对其限制；尽管参照前述实施例对本公开进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本公开各实施例技术方案的精神和范围。

Claims (16)

  1. 一种液晶显示面板，其中，所述液晶显示面板包括第一区域和第二区域，所述第一区域的透过率大于所述第二区域的透过率；
    所述液晶显示面板包括多个子像素；
    所述多个子像素包括第一颜色子像素和第二颜色子像素，所述第一颜色子像素的透过率大于所述第二颜色子像素的透过率，所述第一颜色子像素的面积大于所述第二颜色子像素的面积；
    所述多个子像素还包括颜色相同的第一区域子像素和第二区域子像素，所述第一区域子像素位于所述第一区域内，所述第二区域子像素位于所述第二区域内，所述第一区域子像素的色阻层厚度小于或等于所述第二区域子像素的色阻层厚度。
  2. 根据权利要求1所述的液晶显示面板，其中，所述第一颜色子像素的发光颜色为绿色，所述第二颜色子像素的发光颜色为红色或蓝色。
  3. 根据权利要求1所述的液晶显示面板，其中，所述多个子像素还包括第三颜色子像素，所述第三颜色子像素的透过率大于所述第二颜色子像素的透过率，且小于所述第一颜色子像素的透过率，所述第三颜色子像素的面积大于或等于所述第二颜色子像素的面积，且小于或等于所述第一颜色子像素的面积。
  4. 根据权利要求3所述的液晶显示面板，其中，所述第一颜色子像素的发光颜色为绿色，所述第二颜色子像素的发光颜色为蓝色，所述第三颜色子像素的发光颜色为红色。
  5. 根据权利要求1至4任一项所述的液晶显示面板，其中，所述液晶显示面板包括相对设置的阵列基板和对盒基板，所述阵列基板包括第一衬底，以及层叠设置在所述第一衬底靠近所述对盒基板一侧的第一电极层、绝缘层和第二电极层；
    其中，所述第一电极层包括分立设置的触控电极和像素电极，所述第二电极层包括公共电极，所述触控电极与所述公共电极连接同一电压输出端；
    所述第二电极层在所述第一衬底上的正投影与所述触控电极在所述第一衬底上的正投影无交叠，所述第二电极层在所述第一衬底上的正投影与所述 触控电极和所述像素电极之间的间隔区域在所述第一衬底上的正投影无交叠。
  6. 根据权利要求1至4任一项所述的液晶显示面板，其中，所述液晶显示面板包括相对设置的阵列基板和对盒基板，在所述阵列基板和所述对盒基板之间设置有隔离柱，在所述阵列基板指向所述对盒基板的方向上，所述隔离柱具有相对设置的第一表面和第二表面；
    所述第一表面的边缘相对于所述第二表面在所述第一表面上的正投影边缘凸出，且凸出量小于或等于3μm。
  7. 根据权利要求6所述的液晶显示面板，其中，所述液晶显示面板还包括遮光层，所述遮光层设置在所述阵列基板和/或所述对盒基板上，所述遮光层在所述第一表面所在平面上的正投影边缘相对于所述第一表面的边缘凸出，且凸出量大于或等于2μm，且小于或等于10μm。
  8. 一种显示模组，其中，包括背光模组以及如权利要求1至7任一项所述的液晶显示面板，所述背光模组背离所述液晶显示面板的出光侧设置，所述背光模组用于向所述液晶显示面板提供背光；
    其中，所述背光模组具有开孔区域，所述开孔区域在所述显示面板上的正投影位于所述第一区域内，所述开孔区域用于放置拍摄模组，所述拍摄模组用于拍摄图像。
  9. 根据权利要求8所述的显示模组，其中，所述背光模组包括第一光源，所述第一光源为采用红绿色荧光粉的发光二极管。
  10. 根据权利要求8所述的显示模组，其中，所述背光模组包括导光板和至少一个棱镜片，所述至少一个棱镜片位于所述导光板的出光侧；
    其中，所述棱镜片包括基膜，以及设置在所述基膜背离所述导光板一侧的多个棱镜结构，所述多个棱镜结构包括至少一个第一棱镜结构和至少一个第二棱镜结构，所述至少一个第二棱镜结构位于所述至少一个第一棱镜结构与所述开孔区域之间，所述第一棱镜结构用于使入射至所述第一棱镜结构上的光线向所述第二区域出射，所述第二棱镜结构用于使入射至所述第二棱镜结构上的至少部分光线向所述第一区域出射。
  11. 根据权利要求10所述的显示模组，其中，各所述棱镜结构具有靠近所述开孔区域的斜面，所述斜面与所述基膜之间的夹角为坡度角；
    远离所述开孔区域的第二棱镜结构的坡度角大于靠近所述开孔区域的第 二棱镜结构的坡度角，且小于所述第一棱镜结构的坡度角。
  12. 根据权利要求11所述的显示模组，其中，各所述第一棱镜结构的坡度角相同。
  13. 根据权利要求12所述的显示模组，其中，所述第一棱镜结构的坡度角为45°。
  14. 根据权利要求10所述的显示模组，其中，所述背光模组还包括第二光源，所述第二光源位于所述导光板靠近所述开孔区域一侧的端面。
  15. 根据权利要求14所述的显示模组，其中，所述第二光源为采用红绿色荧光粉的发光二极管。
  16. 一种电子设备，其中，所述电子设备包括拍摄模组以及如权利要求8至15任一项所述的显示模组，所述拍摄模组位于所述背光模组的开孔区域内。
PCT/CN2021/139268 2021-12-17 2021-12-17 液晶显示面板、显示模组及电子设备 WO2023108636A1 (zh)

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