CN115390305A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN115390305A CN115390305A CN202210997693.0A CN202210997693A CN115390305A CN 115390305 A CN115390305 A CN 115390305A CN 202210997693 A CN202210997693 A CN 202210997693A CN 115390305 A CN115390305 A CN 115390305A
- Authority
- CN
- China
- Prior art keywords
- light
- display panel
- sub
- display
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002834 transmittance Methods 0.000 claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 38
- 239000000758 substrate Substances 0.000 claims description 29
- 239000010409 thin film Substances 0.000 claims description 27
- 239000004973 liquid crystal related substance Substances 0.000 claims description 11
- 239000010410 layer Substances 0.000 description 114
- 230000001105 regulatory effect Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical class C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- -1 carboxylic acid compound Chemical class 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
Abstract
The embodiment of the invention discloses a display panel and a display device, wherein the display panel comprises a plurality of sub-display areas and a wiring area arranged around the sub-display areas, and the display panel comprises: a light shielding layer including a first light shielding portion and a light adjusting portion connected to the first light shielding portion, the first light shielding portion being located in the wiring region, the light adjusting portion being located in the sub-display region; the light transmittance of the light shielding layer under a first light intensity is greater than that of the light shielding layer under a second light intensity, the first light intensity is greater than or equal to a light conversion threshold, and the second light intensity is less than the light conversion threshold. According to the embodiment of the invention, the light shielding layer is divided into the first light shielding part and the light adjusting part, the light transmittance of the light shielding layer under the first light intensity is greater than that under the second light intensity, the light shielding width of the light shielding layer is reduced in the overlooking direction of the display panel, the area of the sub-display area of the display panel is increased, the light transmittance of the display panel is improved, and the product quality of the display panel is improved.
Description
Technical Field
The invention relates to the field of display, in particular to a display panel and a display device.
Background
At present, for reducing display panel's reflectivity, avoiding the light leak scheduling problem, the light shield layer is used widely in display panel, and in order to prevent that the product from appearing the light leak in practical application, the shading width of light shield layer often can have more surplus, has leaded to display panel's light transmissivity to be difficult to promote.
Therefore, a display panel and a display device are needed to solve the above technical problems.
Disclosure of Invention
The invention provides a display panel and a display device, which can solve the technical problem that the transmittance of the conventional display panel is difficult to improve.
The invention provides a display panel, comprising a plurality of sub-display areas and a wiring area arranged around the sub-display areas, wherein the display panel comprises:
the light shading layer comprises a first light shading part and a light adjusting part connected with the first light shading part, the first light shading part is positioned in the wiring area, and the light adjusting part is positioned in the sub-display area;
the light transmittance of the light shielding layer under a first light intensity is greater than that of the light shielding layer under a second light intensity, wherein the first light intensity is greater than or equal to a light conversion threshold value, the second light intensity is less than the light conversion threshold value, and the light conversion threshold value is the minimum light intensity of the light shielding layer converted into the light transmitting state from the light shielding state.
Preferably, in a top view direction of the display panel, an area of the light adjusting portion is smaller than or equal to an area of the sub display region.
Preferably, the display panel further includes:
a first substrate;
the first signal line layer is positioned on the first substrate and comprises a plurality of first signal lines, and the first signal lines are positioned in the wiring area;
the second signal line layer is positioned on the first signal line layer and comprises a plurality of second signal lines, and the second signal lines are positioned in the wiring area;
the light shielding layer is located on the second signal line layer, the first light shielding portion covers the first signal line and the second signal line in the overlooking direction of the display panel, and the light adjusting portion is located at one side, close to the sub-display area, of the first light shielding portion.
Preferably, the display panel further includes:
a second substrate disposed opposite to the first substrate;
a liquid crystal layer between the second substrate and the first substrate;
the color resistance layer is positioned on one side, close to the liquid crystal layer, of the second substrate;
the shading layer is located between the color resistance layer and the second substrate, and the color resistance layer covers the shading layer.
Preferably, the color-resist layer includes a color resist, the color resist includes a first thickness portion, and the first thickness portion covers the light-shielding layer in a top view direction of the display panel;
the first thickness portion includes a first sub-portion corresponding to the light adjustment portion, and an area of the first sub-portion is smaller than or equal to an area of the sub-display region in a top view direction of the display panel.
Preferably, the color resistor further comprises a second thickness portion connected to the first thickness portion, and the thickness of the second thickness portion is greater than that of the first thickness portion;
wherein, in the top view direction of the display panel, the second thickness part is positioned in the sub-display area
Preferably, the first light-shielding portion includes a first sub-light-shielding portion that covers the first signal line and a second sub-light-shielding portion that covers the second signal line in a plan view direction of the display panel;
the sub-display area comprises a first sub-display area and a second sub-display area which are alternately arranged along the extending direction of the second signal line, and the wiring area further comprises a thin film transistor device sub-area positioned between the first sub-display area and the second sub-display area;
wherein, in the top view direction of the display panel, the first sub-shading part covers the sub-area of the thin film transistor device.
Preferably, the display panel further includes a third signal line disposed in the wiring region, the third signal line is located on a side of the wiring region close to the second sub-display region, and the light shielding layer further includes a second light shielding portion connected to the first light shielding portion;
wherein the second light-shielding portion covers the third signal line in a plan view direction of the display panel.
Preferably, the material of the light shielding layer comprises a photosensitive material.
Preferably, the photosensitive material comprises a dithiophene ethylene derivative.
The invention also provides a display device, which comprises the display panel and a device main body, wherein the device main body and the display panel are combined into a whole.
According to the invention, the light shielding layer is divided into the first light shielding part and the light adjusting part, the light transmittance of the light shielding layer under the first light intensity is greater than that under the second light intensity, the light shielding width of the light shielding layer is reduced in the overlooking direction of the display panel, the area of the sub-display region of the display panel is increased, the light transmittance of the display panel is improved, and the product quality of the display panel is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a first structure of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second structure of a display panel according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a third structure of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a fourth structure of a display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a display panel according to a fifth embodiment of the present invention;
fig. 6 is a schematic view of a first structure of a display device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention. Furthermore, it should be understood that the detailed description herein is intended only to illustrate and explain the present invention, and is not intended to limit the present invention. In the present invention, unless otherwise specified, the use of directional terms such as "upper" and "lower" generally means upper and lower in the actual use or operation of the device, particularly in the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
At present, the shading layer set for reducing the reflectivity of the display panel and avoiding the problems of light leakage and the like has more allowance due to the shading width, so that the problem that the light transmissivity of the display panel is difficult to improve is caused.
Referring to fig. 1 to 5, an embodiment of the invention provides a display panel 100, including a plurality of sub-display regions 102 and a routing region 101 disposed around the sub-display regions 102, where the display panel 100 includes:
a light shielding layer 103 including a first light shielding portion 104 and a light adjusting portion 105 connected to the first light shielding portion 104, wherein the first light shielding portion 104 is located in the routing region 101, and the light adjusting portion 105 is located in the sub-display region 102;
the light transmittance of the light-shielding layer 103 under a first light intensity is greater than the light transmittance of the light-shielding layer 103 under a second light intensity, where the first light intensity is greater than or equal to a light conversion threshold, the second light intensity is less than a light conversion threshold, and the light conversion threshold is a minimum light intensity at which the light-shielding layer 103 is converted from a light-shielding state to a light-transmitting state.
In a top view direction of the display panel 100, the display panel 100 includes a plurality of sub-display regions 102 and the routing region 101 disposed around the sub-display regions 102. The top view direction of the display panel 100 is a reverse direction of light emitted by the display panel 100 when the light exit surface of the display panel 100 is viewed from the front.
The first light shielding portion 104 is located in the wiring region 101, the light adjusting portion 105 is located in the sub-display region 102, that is, in the top view direction of the display panel 100, the first light shielding portion 104 is located in the wiring region 101, and the light adjusting portion 105 is located in the sub-display region 102.
According to the invention, the light shielding layer is divided into the first light shielding part and the light adjusting part, the light transmittance of the light shielding layer under the first light intensity is greater than that under the second light intensity, and the light adjusting part receives higher backlight intensity than the first light shielding part, so that the light transmittance of the light adjusting part is greater in the display state, therefore, in the overlooking direction of the display panel, the light shielding width of the light shielding layer is equivalently reduced, the area of the sub-display area of the display panel is increased while the light leakage and reflection of the display panel are reduced, the light transmittance of the display panel is improved, and the product quality of the display panel is improved.
The technical solution of the present invention will now be described with reference to specific embodiments.
Referring to fig. 1 to 5, in the present embodiment, the display panel 100 further includes: a first substrate; a first signal line layer on the first substrate, the first signal line layer including a plurality of first signal lines 106; a second signal line layer on the first signal line layer, the second signal line layer including a plurality of second signal lines 107.
The first signal line 106 and the second signal line 107 are located in the routing area 101, the light shielding layer 103 is located on the second signal line layer, in the top view direction of the display panel 100, the first light shielding portion 104 covers the first signal line 106 and the second signal line 107, and the light adjusting portion 105 is located on one side of the sub-display area 102, where the first light shielding portion 104 is close to. The first signal line 106 may be a scan line or a signal line extending in the same direction as the scan line, and the second signal line 107 may be a data line or a signal line extending in the same direction as the data line. The plurality of first signal lines 106 are arranged along a first direction, the plurality of second signal lines 107 are arranged along a second direction, the first signal lines 106 intersect with the second signal lines 107 in a top view direction of the display panel 100, and the sub-display area 102 is located between the plurality of first signal lines 106 and the plurality of second signal lines 107.
The material of the first signal line 106 and the second signal line 107 may be metal or other conductive and light-shielding material.
The first light shielding portion 104 includes a first sub-light shielding portion that covers the first signal line 106 and a second sub-light shielding portion that covers the second signal line 107 in a plan view direction of the display panel 100.
In some embodiments, the sub-display regions 102 include first sub-display regions 108 and second sub-display regions 109 alternately arranged along the extending direction of the second signal lines 107, and the routing region 101 further includes a thin film transistor device sub-region located between the first sub-display regions 108 and the second sub-display regions 109.
Wherein, in the top view direction of the display panel 100, the first sub-shading part covers the sub-area of the thin film transistor device.
The display panel 100 includes a thin film transistor device disposed in the thin film transistor device sub-region, where the thin film transistor device includes a gate on the first substrate, an active portion on the gate, and a source and a drain on the active portion, where the source and the drain are disposed at the same layer. Wherein the active portion includes a channel sub-portion and conductor sub-portions located at both sides of the channel sub-portion, and the source and the drain are electrically connected to the conductor sub-portions at both sides of the channel sub-portion, respectively. The display panel 100 further includes a gate insulating layer between the gate electrode and the active portion, an interlayer insulating layer between the active portion and the source and drain electrodes, and a passivation layer on the source and drain electrodes.
The first signal line 106 and the gate are arranged on the same layer, and the first signal line 106 is connected with the gate in the sub-area of the thin film transistor device; the second signal line 107 is disposed in the same layer as the source and the drain, and the second signal line 107 is connected to the source or the drain in the sub-region of the thin film transistor device.
The first sub-shading part covers the sub-area of the thin film transistor device, and light leakage or reflection of the display panel 100 in the sub-area of the thin film transistor device is avoided.
The display panel 100 may be a flat display type display panel or a curved display type display panel. When the display panel 100 is a flat display type display panel, in a top view direction of the display panel 100, the first sub-shielding portion overlaps with the first signal line 106 and the thin film transistor device sub-region, that is, an orthographic projection of the first signal line 106 on the light shielding layer 103 overlaps with the first sub-shielding portion and the thin film transistor sub-region, and the second sub-shielding portion overlaps with the second signal line 107, that is, an orthographic projection of the second signal line 107 on the light shielding layer 103 overlaps with the second signal line 107. When the display panel 100 is a curved-surface display type display panel, in a top view direction of the display panel 100, after light emitted by the display panel 100 passes through the first signal line 106, the second signal line 107 and the thin film transistor sub-area, an area of a region to be shielded formed on the light shielding layer 103 is increased compared with an orthographic projection area of the first signal line 106, the second signal line 107 and the thin film transistor device sub-area on the light shielding layer 103, so that in order to reduce problems of light leakage, reflection and the like caused by the first signal line 106, the second signal line 107 and the thin film transistor device sub-area, orthographic projections of the first signal line 106 and the thin film transistor device sub-area on the light shielding layer 103 are located in the first sub-light shielding portion, and orthographic projections of the second signal line 107 on the light shielding layer 103 are located in the second sub-light shielding portion.
When the display panel 100 is a curved display type display panel, the display panel 100 includes a first curved display area and second curved display areas located on two sides of the first curved display area along a curved direction of the display panel 100.
The curved edge direction of the display panel 100 is parallel to the arrangement direction of the second signal traces, and the width of the second sub-light-shielding portion in the first curved surface display area is greater than the width of the second sub-light-shielding portion in the second curved surface display area. When the display panel 100 is a curved display type display panel, the degree of curvature of the display panel 100 in the first curved display area is greater than the degree of curvature of the display panel 100 in the second curved display area, so that when the display panel 100 emits light, after the light emitted by the display panel 100 passes through the first signal line 106, the second signal line 107 and the sub-area of the thin film transistor in the first curved display area in the top view direction of the display panel 100, the area of the area to be shielded formed on the light shielding layer 103 is greater than the area of the area to be shielded formed on the light shielding layer 103 after the light emitted by the display panel 100 passes through the first signal line 106, the second signal line 107 and the sub-area of the thin film transistor in the second curved display area. Therefore, the width of the second sub-shielding portion in the first curved display area is greater than the width of the second sub-shielding portion in the second curved display area, which is beneficial to improving the display effect of the display panel 100 in curved display applications.
When the display panel 100 is a curved display type display panel, due to the bending of the display panel 100, signal lines and devices (such as the first signal lines 106, the second signal lines 107, the third signal lines 110, the thin film transistor devices, and the like) in the wiring area 101 at different positions block light emitted by the display panel 100 in a top view direction of the display panel 100, and then, offset amounts of areas to be shielded formed on the light shielding layer 103 are significantly different, and the original design using the light shielding layer 103 not only reduces light transmittance of the display panel, but also causes problems such as dark clusters, and the like, and if the light shielding layer 103 is not provided in the display panel, problems such as an increase in panel reflectance and a reduction in a viewing angle occur. Adopt this application light shield layer 103's design on display panel 100 overlook the direction, first light shield portion 104 the position of second light shield portion 111 is along with different positions department walk line and device in the region 101 and be in the regional change of waiting to block light that forms on light shield layer 103 changes, and light regulation portion 105 then along with receiving display panel 100's luminous intensity reaches the threshold value and truns into the printing opacity state from the shading state to, avoids light regulation portion 105 influences display panel 100's light transmissivity, consequently, has reduced light shield layer 103 is in display panel 100 overlook ascending shading width, has improved display panel 100's light transmissivity has solved curved surface display panel and has easily produced the problem of dark group in different positions, has improved display panel 100's product quality.
The light adjusting portion 105 includes a first sub-light adjusting portion located on a side of the first sub-shielding portion close to the sub-display region 102 and a second sub-light adjusting portion located on a side of the second sub-shielding portion close to the sub-display region 102.
In some embodiments, the sum of the widths of the second sub-shielding portion and the second sub-light adjusting portion corresponding to each of the second signal lines 107 may be the same in the arrangement direction along the second signal lines 107. Or, the sum of the widths of the second sub-shielding portion and the second sub-light adjusting portion corresponding to the second signal line 107 in the first curved surface display area is greater than the sum of the widths of the second sub-shielding portion and the second sub-light adjusting portion corresponding to the second signal line 107 in the second curved surface display area.
In some embodiments, the width of the second sub light modulation portion in the first curved display region may be smaller than the width of the second sub light modulation portion in the second curved display region in the arrangement direction along the second signal line 107; accordingly, the width of the second sub-shielding portion in the first curved display area is larger than the width of the second sub-shielding portion in the second curved display area in the arrangement direction along the second signal line 107.
Or, in the arrangement direction along the second signal line 107, the ratio of the width of the second sub light adjusting portion in the first curved display area to the sum of the widths of the second sub light shielding portion and the second sub light adjusting portion corresponding to the second signal line 107 is smaller than the ratio of the width of the second sub light adjusting portion in the second curved display area to the sum of the widths of the second sub light shielding portion and the second sub light adjusting portion corresponding to the second signal line 107; accordingly, in the arrangement direction along the second signal line 107, the ratio of the width of the second sub-shielding portion in the first curved display area to the sum of the widths of the second sub-shielding portion corresponding to the second signal line 107 and the second sub-light adjusting portion is greater than the ratio of the width of the second sub-shielding portion in the second curved display area to the sum of the widths of the second sub-shielding portion corresponding to the second signal line 107 and the second sub-light adjusting portion.
Referring to fig. 1 and fig. 3, in some embodiments, the display panel 100 further includes a third signal line 110 disposed in the wiring region, the third signal line 110 is located on a side of the wiring region 101 close to the second sub-display region 109, and the light shielding layer 103 further includes a second light shielding portion 111 connected to the first light shielding portion 104.
The second light-shielding portion 111 covers the third signal line 110 in a plan view of the display panel 100.
The third signal line 110 may be disposed at the same layer as the first signal line 106, and the third signal line 110 may be a common electrode line.
The third signal line 110 may extend in the same direction as the second signal line 107, and the third signal line 110 is located on a side of the second signal line 107 close to the second sub-display region 109.
The first sub-display area 108 and the second sub-display area 109 on two sides of each sub-area of the tft device constitute one sub-display area 102, and when the display panel 100 is in a display state, each sub-display area 102 correspondingly displays light of the same color.
The display panel 100 further includes a pixel electrode layer located between the second signal line layer and the light shielding layer 103, and the pixel electrode layer includes a pixel electrode located between the first signal line 106 and the second signal line 107, and the pixel electrode is at least partially disposed in the sub-display region 102. One side of the pixel electrode close to the thin film transistor device sub-area is located in the thin film transistor device sub-area, that is, in the top view direction of the display panel 100, the first sub-light shielding portion corresponding to the thin film transistor device sub-area covers the pixel electrode located in the thin film transistor device sub-area.
The pixel electrode includes a first sub-pixel electrode at least partially disposed in the first sub-display region 108 and includes a second sub-pixel electrode at least partially disposed in the second sub-display region 109. The first subpixel electrode includes a first main branch electrode extending in the same direction as the first signal line 106 and a second main branch electrode extending in the same direction as the second signal line 107. The first sub-pixel electrode further comprises a first sub-pixel electrode frame, the first sub-pixel electrode frame comprises two first electrode sides which are parallel to each other and two second electrode sides which are parallel to each other, the first electrode sides are parallel to the first main branch electrode, and the second electrode sides are parallel to the second main branch electrode. The two ends of the first main branch electrode are connected with the middle point of the second electrode edge, the two ends of the second main branch electrode are connected with the middle point of the first electrode edge, so that the first sub-pixel electrode frame is divided into four first sub-pixel electrode areas, each first sub-pixel electrode area comprises a plurality of first branch electrodes which are parallel to each other, the two ends of each first branch electrode are respectively connected with the first main branch electrode and the first sub-pixel electrode frame, or the two ends of each first branch electrode are respectively connected with the second main branch electrode and the first sub-pixel electrode frame.
The second subpixel electrode includes a third main branch electrode extending in the same direction as the first signal line 106 and a fourth main branch electrode extending in the same direction as the second signal line 107. The second sub-pixel electrode further comprises a second sub-pixel electrode frame, the second sub-pixel electrode frame comprises two third electrode sides which are parallel to each other and two fourth electrode sides which are parallel to each other, the third electrode sides are parallel to the third main branch electrodes, and the fourth electrode sides are parallel to the fourth main branch electrodes. Two ends of the third main branch electrode are connected with the middle point of the fourth electrode edge, two ends of the fourth main branch electrode are connected with the middle point of the third electrode edge, so that the second sub-pixel electrode frame is divided into four second sub-pixel electrode areas, each second sub-pixel electrode area comprises a plurality of second branch electrodes which are parallel to each other, two ends of each second branch electrode are respectively connected with the third main branch electrode and the second sub-pixel electrode frame, or two ends of each second branch electrode are respectively connected with the fourth main branch electrode and the first sub-pixel electrode frame.
Referring to fig. 4 and fig. 5, in some embodiments, the display panel 100 may be a liquid crystal display panel, and at this time, the display panel 100 further includes: a second substrate disposed opposite to the first substrate; a liquid crystal layer between the second substrate and the first substrate; and the color resistance layer is positioned on one side of the second substrate close to the liquid crystal layer.
The light-shielding layer 103 is located between the color-resist layer and the second substrate, and the color-resist layer covers the light-shielding layer 103.
The color resistance layer 112 includes a color resistance, the color resistance includes a first color resistance 113, a second color resistance 114 and a third color resistance, and the colors of the first color resistance 113, the second color resistance 114 and the third color resistance are different from each other and are respectively one of a red color resistance, a green color resistance and a blue color resistance.
The first color resists 113, the second color resists 114, and the third color resists are alternately arranged along the arrangement direction of the second signal lines 107, that is, the color resists in the sub-display regions 102 between two adjacent second signal lines 107 have the same color.
Alternatively, the first color resists 113, the second color resists 114, and the third color resists are alternately arranged along the arrangement direction of the first signal lines 106, that is, along the extending direction of the first signal lines 106, the colors of the color resists in two adjacent sub-display regions 102 are the same.
The color resistor comprises a second thickness part and a first thickness part connected with the second thickness part, and the thickness of the second thickness part is greater than that of the first thickness part.
In a top view direction of the display panel 100, the first thickness portion covers the light-shielding layer 103, the second thickness portion is located on a side of the first thickness portion away from the light-shielding layer 103, the second thickness portion is located in the sub-display region 102, and the first thickness portion is at least partially located in the sub-display region 102.
For example, the first thickness portion of the first color resistor 113 is connected to the first thickness portion of the second color resistor 114, the first thickness portion of the second color resistor 114 is connected to the first thickness portion of the third color resistor, and the first thickness portion of the first color resistor 113 is connected to the first thickness portion of the third color resistor.
The first thickness portion includes a first sub-portion corresponding to the light adjustment portion 105, and in the top view direction of the display panel 100, the area of the first sub-portion is smaller than or equal to the area of the sub-display region 102, and the area of the first sub-portion may be equal to the area of the light adjustment portion.
The first thickness portion further includes a second sub-portion corresponding to the first light-shielding portion 104, the second sub-portion covers the first light-shielding portion 104 in a plan view direction of the display panel 100, and an area of the second sub-portion may be equal to an area of the first light-shielding portion 104.
The area of the first thickness portion may be equal to the area of the light-shielding layer 103 in a plan view direction of the display panel 100.
When the display panel 100 is a liquid crystal display panel, the display panel 100 further includes a backlight assembly located on a side of the first substrate away from the second substrate, and the backlight assembly is configured to provide a light source for the display panel 100.
When the display panel 100 is a liquid crystal display panel, the display panel 100 may be a VA (Vertical Alignment) type display panel, or other types of display panels; when the display panel 100 is a VA-type liquid crystal display panel, the display panel 100 further includes a common electrode layer located on one side of the liquid crystal layer near the second substrate, the common electrode layer may be located between the color resistance layer 112 and the second substrate, the common electrode layer includes a common electrode, the common electrode corresponds to the pixel electrode, and the common electrode may be disposed in a whole layer.
In a top view direction of the display panel 100, an area of the light adjusting portion 105 is smaller than or equal to an area of the sub-display region 102, and when the area of the light adjusting portion 105 is smaller than the area of the sub-display region 102, a thickness of the second thickness portion is larger than a thickness of the first thickness portion; when the area of the light adjusting portion 105 is equal to the area of the sub-display region 102, the thickness of the second thickness portion is equal to the thickness of the first thickness portion.
Referring to fig. 2 to 5, the material of the light shielding layer 103 may be a black photochromic photoresist material, the material of the light shielding layer 103 may include a photosensitive material, and when the display panel 100 is in a non-display state, the light transmittances of the first light shielding portion 104, the second light shielding portion 111 and the light adjusting portion 105 are the same; when the display panel 100 is in the display state, the light transmittance of the light adjusting portion 105 is greater than the light transmittances of the first and second light shielding portions 104 and 111.
Specifically, when the material of the light-shielding layer 103 is a black photo-resist material with photochromic properties, the material composition of the light-shielding layer includes: black dye, photoinitiator, photopolymer, alkali soluble polymer, solvent and dispersant.
The black dye is used for the light shielding layer 103 to obtain a light shielding effect, and may be carbon black or other black substances, and the mass fraction of the black dye in the light shielding layer 103 may be 7% to 10%.
The photoinitiator is used for forming free radicals or ionic active radicals under illumination to initiate polymerization and crosslinking of the photopolymer monomer so as to form the photopolymer, and the mass fraction of the photoinitiator in the light shielding layer 103 can be 0.8-1.6%.
The monomer of the photopolymer is initiated by a photoinitiator, so that the monomer of the photopolymer is polymerized and crosslinked to form a compact photopolymer, the monomer of the photopolymer can be a carboxylic acid compound containing vinyl, and the mass fraction of the photopolymer in the shading layer can be 2.5-3.8%.
The alkali soluble polymer and the dispersant both contribute to stable dispersion of the black dye, wherein the mass fraction of the alkali soluble polymer can be 5-8%, and the mass fraction of the dispersant can be 0.16-0.24%.
The photosensitive material may be used directly as a black dye or added as a separate component. When the photosensitive material is used as a black dye, the light transmittance of the photosensitive material is 0 or close to 0 within a certain light intensity range (such as 0-500 nits), and the photosensitive material is black; when the light intensity received by the photosensitive material exceeds the range (such as more than 500 nits), the absorption of the photosensitive material to visible light is reduced due to the photochromic effect of the photosensitive material, and the light transmittance is greatly improved.
When the photosensitive material is added as an independent component, the photosensitive material and the black dye take place physical or chemical action to the photochromic regulation and control optical property of the black dye through the photosensitive material reaches and makes the light shield layer 103 the light regulation portion 105 is switched between the light transmission state and the light shield state.
When the display panel 100 is in the display state, the light intensity received by the light adjusting portion 105 from the display panel 100 is the first light intensity, the first light intensity is greater than or equal to a light conversion threshold, where the light conversion threshold refers to a minimum light intensity at which the light shielding layer 103 is converted from the light shielding state to the light transmitting state, at this time, the light transmittance of the light adjusting portion 105 is greatly improved, the light adjusting portion 105 is in the light transmitting state, and the light emitted by the display panel 100 can penetrate through the light adjusting portion 105, so that the light adjusting portion 105 does not affect the normal display of the display panel 100; when display panel 100 is in the non-display state, the light regulating part 105 receives and comes from display panel 100's luminous intensity does the second luminous intensity, the second luminous intensity is less than the light conversion threshold value, light regulating part 105's luminousness greatly reduced, light regulating part 105 is in the shading state, and this moment display panel 100 is not in the display state, therefore light regulating part 105 turns into the shading state and also can not be right display panel 100's demonstration produces the influence.
As described above, the light-shielded state is a state in which the light transmittance of the light-shielding layer 103 is lower than that of the light-shielding layer 103 in the light-transmissive state, with respect to the light-transmissive state. In this application, the light-shielding state preferably means a state where the light transmittance of the light-shielding layer 103 is less than 10%, and obviously the light transmittance in the light-shielding state is as small as possible, and the light-shielding state more preferably means a state where the light transmittance of the light-shielding layer 103 is less than 1%; the light-transmitting state preferably means a state in which the light transmittance of the light-shielding layer 103 is greater than 90%, and obviously the light transmittance in the light-transmitting state is as high as possible, and more preferably means a state in which the light transmittance of the light-shielding layer 103 is greater than 99%.
When the display panel 100 is in the display state, due to the shielding of the signal lines and devices in the routing area 101 (e.g., the first signal line 106, the second signal line 107, the third signal line 110, the thin film transistor device, etc.), the light intensity received by the first light-shielding portion 104 and the second light-shielding portion 111 from the display panel 100 is the second light intensity, which is still less than the light conversion threshold value at this time, and the first light-shielding portion 104 and the second light-shielding portion 111 are in the light-shielding state, so that the first light-shielding portion 104 prevents light leakage from the display panel 100 and reduces the reflectivity of the display panel 100.
The light conversion threshold has different specific values according to the type of the display panel, the backlight intensity, the display mode, and the like, and may be, for example, 500 nit, 700 nit, and the like.
The material of the light-shielding layer 103 includes a photosensitive material, for example, the material of the light-shielding layer 103 may include a dithienylethylene derivative.
The concentration of the photosensitive material on the side of the light adjusting portion 105 close to the first light shielding portion 104 is less than that of the photosensitive material on the side of the light adjusting portion 105 far away from the first light shielding portion 104; or, the light adjusting portion 105 is close to one side of the second light shielding portion 111, and the concentration of the light sensitive material is smaller than that of the light adjusting portion 105 far away from one side of the second light shielding portion 111. Light regulating part 105 is located in sub-display area 102, light regulating part 105 is close to one side of sub-display area 102's central area the concentration of photosensitive material is higher than light regulating part 105 keeps away from one side of sub-display area 102's central area the concentration of photosensitive material is favorable to light regulating part 105 is close to one side of sub-display area 102's central area is to coming from the promotion of the sensitivity of the luminous intensity that display panel 100 sent makes light regulating part 105 is close to the speed that the translucent state was changed from the shading state to one side of sub-display area 102's central area is faster, avoids when display panel 100 shows because light regulating part 105 is close to the speed of change from the shading state to the translucent state of one side of sub-display area 102's central area is not fast enough and influences display panel 100's display effect.
In the embodiment of the present invention, the light shielding layer 103 is divided into the first light shielding portion 104 and the light adjusting portion 105, the light transmittance of the light shielding layer 103 under the first light intensity is greater than the light transmittance under the second light intensity, and the light shielding width of the light shielding layer 103 is reduced in the top view direction of the display panel 100, so that the area of the sub-display region 102 of the display panel 100 is increased while the light leakage and reflection of the display panel 100 are reduced, the light transmittance of the display panel 100 is improved, and the product quality of the display panel 100 is improved.
Referring to fig. 6, an embodiment of the invention further provides a display device 10, which includes the display panel 100 and the device main body 200 as described above, and the device main body 200 is integrated with the display panel 100.
Please refer to any one of the embodiments of the display panel and the drawings for the specific structure of the display panel 100, which is not repeated herein.
In this embodiment, the device main body 200 may include a middle frame, frame glue, and the like, and the display device 10 may be a display terminal such as a mobile phone, a flat panel, a television, and the like, which is not limited herein.
According to the display device provided by the embodiment of the invention, the light shielding layer is divided into the first light shielding part and the light adjusting part, the light transmittance of the light adjusting part under the first light intensity is greater than that under the second light intensity, the light shielding width of the light shielding layer is reduced in the overlooking direction of the display panel, the area of the sub-display area of the display panel is increased while the light leakage and reflection of the display device are reduced, the light transmittance of the display device is improved, and the product quality of the display device is improved.
The embodiment of the invention discloses a display panel and a display device, wherein the display panel comprises a plurality of sub-display areas and a wiring area arranged around the sub-display areas, and the display panel comprises: a light shielding layer including a first light shielding portion and a light adjusting portion connected to the first light shielding portion, the first light shielding portion being located in the wiring region, the light adjusting portion being located in the sub-display region; the light transmittance of the light-shielding layer under a first light intensity is greater than that of the light-shielding layer under a second light intensity, the first light intensity is greater than or equal to a light conversion threshold, and the second light intensity is less than the light conversion threshold. According to the embodiment of the invention, the light shielding layer is divided into the first light shielding part and the light adjusting part, the light transmittance of the light shielding layer under the first light intensity is greater than that under the second light intensity, the light shielding width of the light shielding layer is reduced in the overlooking direction of the display panel, the area of the sub-display area of the display panel is increased, the light transmittance of the display panel is improved, and the product quality of the display panel is improved.
The display panel and the display device provided by the embodiment of the present invention are described in detail above, and the principle and the embodiment of the present invention are explained herein by applying specific examples, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed, and in summary, the content of the present specification should not be construed as limiting the present invention.
Claims (11)
1. A display panel, comprising a plurality of sub-display regions and a wiring region disposed around the sub-display regions, the display panel comprising:
the light shading layer comprises a first light shading part and a light adjusting part connected with the first light shading part, the first light shading part is positioned in the wiring area, and the light adjusting part is positioned in the sub-display area;
the light transmittance of the light shielding layer under a first light intensity is greater than that of the light shielding layer under a second light intensity, wherein the first light intensity is greater than or equal to a light conversion threshold value, the second light intensity is less than the light conversion threshold value, and the light conversion threshold value is the minimum light intensity of the light shielding layer converted into the light transmitting state from the light shielding state.
2. The display panel according to claim 1, wherein an area of the light modulation section is smaller than or equal to an area of the sub-display section in a top view direction of the display panel.
3. The display panel according to claim 1, wherein the display panel further comprises:
a first substrate;
the first signal line layer is positioned on the first substrate and comprises a plurality of first signal lines, and the first signal lines are positioned in the wiring area;
the second signal line layer is positioned on the first signal line layer and comprises a plurality of second signal lines, and the second signal lines are positioned in the wiring area;
the light shielding layer is located on the second signal line layer, the first light shielding portion covers the first signal line and the second signal line in the overlooking direction of the display panel, and the light adjusting portion is located at one side, close to the sub-display area, of the first light shielding portion.
4. The display panel according to claim 3, characterized in that the display panel further comprises:
a second substrate disposed opposite to the first substrate;
a liquid crystal layer between the second substrate and the first substrate;
the color resistance layer is positioned on one side, close to the liquid crystal layer, of the second substrate;
the shading layer is located between the color resistance layer and the second substrate, and the color resistance layer covers the shading layer.
5. The display panel according to claim 4, wherein the color resist layer comprises a color resist including a first thickness portion covering the light shielding layer in a top view direction of the display panel;
the first thickness portion includes a first sub-portion corresponding to the light adjustment portion, and an area of the first sub-portion is smaller than or equal to an area of the sub-display region in a plan view direction of the display panel.
6. The display panel according to claim 4, wherein the color resists further comprise a second thickness portion connected to the first thickness portion, the second thickness portion having a thickness greater than that of the first thickness portion;
wherein, in a top view direction of the display panel, the second thickness portion is located in the sub-display area.
7. The display panel according to claim 3, wherein the first light shielding portions include first sub-light shielding portions that cover the first signal lines and second sub-light shielding portions that cover the second signal lines in a plan view direction of the display panel;
the sub-display area comprises a first sub-display area and a second sub-display area which are alternately arranged along the extending direction of the second signal line, and the wiring area further comprises a thin film transistor device sub-area positioned between the first sub-display area and the second sub-display area;
wherein, in the top view direction of the display panel, the first sub-shading part covers the sub-area of the thin film transistor device.
8. The display panel according to claim 7, wherein the display panel further comprises a third signal line disposed in the wiring region, the third signal line being located on a side of the wiring region close to the second sub-display region, and wherein the light shielding layer further comprises a second light shielding portion connected to the first light shielding portion;
wherein the second light-shielding portion covers the third signal line in a plan view direction of the display panel.
9. The display panel according to claim 1, wherein a material of the light-shielding layer comprises a light-sensitive material.
10. The display panel of claim 9, wherein the photosensitive material comprises a dithienylethylene derivative.
11. A display device comprising the display panel according to any one of claims 1 to 10 and a device main body, wherein the device main body is integrated with the display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210997693.0A CN115390305B (en) | 2022-08-19 | 2022-08-19 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210997693.0A CN115390305B (en) | 2022-08-19 | 2022-08-19 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115390305A true CN115390305A (en) | 2022-11-25 |
| CN115390305B CN115390305B (en) | 2024-02-23 |
Family
ID=84121182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210997693.0A Active CN115390305B (en) | 2022-08-19 | 2022-08-19 | Display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115390305B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752828A (en) * | 2005-10-21 | 2006-03-29 | 友达光电股份有限公司 | Multiple groups of substrates, liquid crystal display device and its assembling method |
| CN103792687A (en) * | 2014-02-10 | 2014-05-14 | 成都京东方光电科技有限公司 | Colored film substrate and displaying device |
| CN103941409A (en) * | 2014-04-10 | 2014-07-23 | 京东方科技集团股份有限公司 | 3D glasses and display device |
| CN105182647A (en) * | 2015-10-16 | 2015-12-23 | 深圳市华星光电技术有限公司 | Array substrate, liquid crystal display panel and driving method |
| CN105304677A (en) * | 2015-09-24 | 2016-02-03 | 京东方科技集团股份有限公司 | OLED display panel, display device and display system |
| CN106371256A (en) * | 2016-11-30 | 2017-02-01 | 京东方科技集团股份有限公司 | Pixel structure, display panel and display device |
| CN107636841A (en) * | 2015-06-05 | 2018-01-26 | 夏普株式会社 | Active-matrix substrate and its manufacture method and the display device using active-matrix substrate |
| CN107870490A (en) * | 2016-09-28 | 2018-04-03 | 群创光电股份有限公司 | Display device |
| CN111919163A (en) * | 2019-02-22 | 2020-11-10 | 京东方科技集团股份有限公司 | Array substrate and display device |
| CN214098977U (en) * | 2020-11-03 | 2021-08-31 | 惠科股份有限公司 | Display panel and display device |
| US20210325719A1 (en) * | 2017-12-12 | 2021-10-21 | Ordos Yuansheng Optoelectronics Co., Ltd. | Display panel and display apparatus |
| CN113675248A (en) * | 2021-08-16 | 2021-11-19 | 上海天马微电子有限公司 | Display panel and display device |
| US20220149334A1 (en) * | 2020-11-10 | 2022-05-12 | Boe Technology Group Co., Ltd. | Display Panel and Preparation Method Thereof, and Display Apparatus |
| US20230098050A1 (en) * | 2021-09-29 | 2023-03-30 | Tcl China Star Optoelectronics Technology Co., Ltd. | Pixel unit of a display panel and display panel |
-
2022
- 2022-08-19 CN CN202210997693.0A patent/CN115390305B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752828A (en) * | 2005-10-21 | 2006-03-29 | 友达光电股份有限公司 | Multiple groups of substrates, liquid crystal display device and its assembling method |
| CN103792687A (en) * | 2014-02-10 | 2014-05-14 | 成都京东方光电科技有限公司 | Colored film substrate and displaying device |
| CN103941409A (en) * | 2014-04-10 | 2014-07-23 | 京东方科技集团股份有限公司 | 3D glasses and display device |
| CN107636841A (en) * | 2015-06-05 | 2018-01-26 | 夏普株式会社 | Active-matrix substrate and its manufacture method and the display device using active-matrix substrate |
| CN105304677A (en) * | 2015-09-24 | 2016-02-03 | 京东方科技集团股份有限公司 | OLED display panel, display device and display system |
| CN105182647A (en) * | 2015-10-16 | 2015-12-23 | 深圳市华星光电技术有限公司 | Array substrate, liquid crystal display panel and driving method |
| CN107870490A (en) * | 2016-09-28 | 2018-04-03 | 群创光电股份有限公司 | Display device |
| CN106371256A (en) * | 2016-11-30 | 2017-02-01 | 京东方科技集团股份有限公司 | Pixel structure, display panel and display device |
| US20210325719A1 (en) * | 2017-12-12 | 2021-10-21 | Ordos Yuansheng Optoelectronics Co., Ltd. | Display panel and display apparatus |
| CN111919163A (en) * | 2019-02-22 | 2020-11-10 | 京东方科技集团股份有限公司 | Array substrate and display device |
| CN214098977U (en) * | 2020-11-03 | 2021-08-31 | 惠科股份有限公司 | Display panel and display device |
| US20220149334A1 (en) * | 2020-11-10 | 2022-05-12 | Boe Technology Group Co., Ltd. | Display Panel and Preparation Method Thereof, and Display Apparatus |
| CN113675248A (en) * | 2021-08-16 | 2021-11-19 | 上海天马微电子有限公司 | Display panel and display device |
| US20230098050A1 (en) * | 2021-09-29 | 2023-03-30 | Tcl China Star Optoelectronics Technology Co., Ltd. | Pixel unit of a display panel and display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115390305B (en) | 2024-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7212267B2 (en) | Liquid crystal display device with color filter substrate height greater in reflection region than transmission region | |
| US6847426B2 (en) | Liquid crystal display device | |
| US7119871B2 (en) | Liquid crystal display having insulating film overlapping and extending in direction of drain signal line | |
| US7339642B2 (en) | Liquid crystal display device having sub pixels with transmissive regions extending entirely across the sub pixel | |
| US7688408B2 (en) | Liquid crystal device and electronic apparatus | |
| US7675589B2 (en) | Liquid crystal device and electronic apparatus | |
| KR100220614B1 (en) | Active matrix lcd panel and projection display device | |
| US10175543B2 (en) | Display substrate and liquid crystal display having the same | |
| CN107219674B (en) | Display panel and display device | |
| US20240027835A1 (en) | Display panel and electronic device | |
| CN109886252B (en) | Liquid crystal display panel | |
| CN111090199B (en) | TFT array substrate and display panel | |
| KR100755613B1 (en) | Liquid crystal device, method of manufacturing liquid crystal device, and electronic apparatus | |
| US7123327B2 (en) | Substrate for reflective-transmissive electro-optical device having opening in base layer varying in size along a first direction | |
| CN115390305A (en) | Display panel and display device | |
| CN114527596B (en) | Display panel and mobile terminal | |
| KR20070010550A (en) | Common electrode panel, liquid crystal display including the panel, and method of manufacturing the panel | |
| JP2002323704A (en) | Liquid crystal display device | |
| KR20070058976A (en) | Liquid crystal device and electronic apparatus | |
| US20200089066A1 (en) | Array substrate, display panel, and display device | |
| CN106773393B (en) | Array substrate, display panel, display device and preparation method of array substrate | |
| JP2009092881A (en) | Color filter substrate, liquid crystal display panel, liquid crystal display device, and method for manufacturing color filter substrate | |
| CN115718386B (en) | Display module and display device | |
| CN113050314B (en) | Display panel and driving method thereof | |
| CN117457668A (en) | Display panel and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |