CN114815387B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN114815387B CN114815387B CN202210331850.4A CN202210331850A CN114815387B CN 114815387 B CN114815387 B CN 114815387B CN 202210331850 A CN202210331850 A CN 202210331850A CN 114815387 B CN114815387 B CN 114815387B
- Authority
- CN
- China
- Prior art keywords
- display panel
- substrate
- pixel
- electrode
- pixel electrode
- 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.)
- Active
Links
- 239000000758 substrate Substances 0.000 claims abstract description 91
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 63
- 238000002834 transmittance Methods 0.000 claims abstract description 27
- 239000010409 thin film Substances 0.000 claims abstract description 24
- 239000010410 layer Substances 0.000 claims description 74
- 230000007423 decrease Effects 0.000 claims description 33
- 239000011159 matrix material Substances 0.000 claims description 19
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- 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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
-
- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Geometry (AREA)
- Liquid Crystal (AREA)
Abstract
The application provides a display panel and a display device, comprising a first substrate, a second substrate and a liquid crystal layer; the first substrate and the second substrate are oppositely arranged, a plurality of sub-pixels are arranged on the second substrate, each sub-pixel comprises a data line, a scanning line, a thin film transistor and a pixel electrode, the grid electrode of the thin film transistor is connected with the scanning line, and the source electrode and the drain electrode of the thin film transistor are respectively and electrically connected with the data line and the pixel electrode; the liquid crystal layer is arranged between the first substrate and the second substrate. The second substrate comprises a plurality of pixel electrodes, slit angles of the pixel electrodes are gradually reduced in a first direction, and the first direction is defined as a direction in which the temperature of the display panel is gradually reduced when the display panel is used, so that when the display device works, the influence of temperature difference on the transmittance of the liquid crystal layer of the display panel in the first direction is compensated, and the brightness of the display panel is uniform.
Description
Technical Field
The present application relates to the field of liquid crystal display technology, and in particular, to a display panel and a display device.
Background
Liquid crystal displays (Liquid Crystal Display, LCDs) have become mainstream displays used In daily life work, and the liquid crystal displays can be classified into Twisted Nematic (TN) type, vertical alignment (Vertical Alignment, VA) type, in-Plane-Switching (IPS) type, and other mainstream displays according to their display modes.
However, with the development of display technology, liquid crystal displays are being developed in the direction of portability and thinning, so that side-entry backlights are mostly used. However, the brightness of the display panel using the side-entry backlight is not uniform.
Disclosure of Invention
The application provides a display panel and a display device, which are used for solving the problem of uneven brightness of the existing display panel.
In order to solve the technical problems, the first technical scheme provided by the application is as follows: a display panel is provided, including a first substrate, a second substrate, and a liquid crystal layer; the second substrate is arranged opposite to the first substrate, a plurality of sub-pixels are formed on the second substrate, each sub-pixel comprises a data line, a scanning line, a thin film transistor and a pixel electrode, the grid electrode of the thin film transistor is connected with the scanning line, and the source electrode and the drain electrode of the thin film transistor are respectively and electrically connected with the data line and the pixel electrode; the liquid crystal layer is arranged between the first substrate and the second substrate; wherein slit angles of the pixel electrodes of the plurality of sub-pixels gradually decrease in a first direction defined as a direction in which a temperature gradually decreases when the display panel is in use.
In an embodiment, the pixel electrode includes a main electrode and a plurality of branch electrodes connected to the main electrode, the main electrode is in a cross shape, the main electrode divides the pixel electrode into four first areas, any one of the first areas includes a plurality of branch electrodes disposed in parallel, an included angle between the branch electrode and the main electrode is a slit angle of the sub-pixel electrode, and slit angles of the plurality of pixel electrodes are reduced in an arithmetic array in the first direction.
In an embodiment, in the first direction, a difference between slit angles of two adjacent pixel electrodes is less than 0.5 degrees.
In an embodiment, in the first direction, a slit angle of the plurality of pixel electrodes decreases from 45 degrees, and a minimum slit angle of the plurality of pixel electrodes ranges from 30 degrees to 40 degrees.
In an embodiment, a coupling capacitance is formed between the data line and the pixel electrode, and a distance between the data line and the pixel electrode is gradually reduced in the first direction, so that the coupling capacitance between the data line and the pixel electrode is gradually increased in the first direction.
In an embodiment, the first substrate includes a plurality of reflective units disposed at intervals, and the plurality of reflective units are disposed on a surface of the first substrate near the second substrate; the areas of the plurality of light reflecting units gradually decrease in the first direction.
In an embodiment, the first substrate further includes a black matrix layer; the plurality of light reflecting units are arranged on one side, close to the second substrate, of the black matrix layer, and the lengths and/or the widths of the plurality of light reflecting units are gradually reduced in the first direction.
In one embodiment, the material of the light reflecting unit comprises a metal or an alloy thereof.
In an embodiment, the plurality of pixel electrodes are arranged in an array, the slit angles of the pixel electrodes in the same column are the same, and the slit angles of the pixel electrodes in different columns are gradually reduced in the row direction.
In order to solve the technical problems, a second technical scheme provided by the application is as follows: provided is a display device including: a display panel comprising the display panel of any one of the above; the side-entering type backlight module comprises a light guide plate and a light source, wherein the first direction is from the side-entering type backlight module to the far direction.
The display panel and the display device provided by the application have the beneficial effects that the display panel and the display device are different from the situation in the prior art, and comprise a first substrate, a second substrate and a liquid crystal layer; the first substrate and the second substrate are oppositely arranged, a plurality of sub-pixels are arranged on the second substrate, each sub-pixel comprises a data line, a scanning line, a thin film transistor and a pixel electrode, the grid electrode of the thin film transistor is connected with the scanning line, and the source electrode and the drain electrode of the thin film transistor are respectively and electrically connected with the data line and the pixel electrode; the liquid crystal layer is arranged between the first substrate and the second substrate. The slit angles of the pixel electrodes of the second substrate gradually decrease in a first direction, the first direction is defined as a direction in which the temperature gradually decreases when the display panel is used, when the display device adopting the display panel adopts the side-in backlight module, the temperature of the display panel gradually decreases in the first direction to cause the penetration rate of the liquid crystal layer to gradually increase, and the slit angles of the pixel electrodes of the second substrate gradually decrease in the first direction to cause the penetration rate of the liquid crystal layer to gradually decrease, so that when the display device works, the influence of the temperature difference of the display panel on the penetration rate of the liquid crystal layer is compensated, and the brightness of the display panel is uniform.
Drawings
For a clearer description of the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
fig. 1 is a schematic structural diagram of a display device according to a first embodiment of the present application;
fig. 2 is a cross-sectional view of a display device according to a first embodiment of the present application;
FIG. 3 is a graph showing the relationship between the absorption axes of the first and second substrates and the azimuth angle of the liquid crystal molecules and the periodic function A of the display device according to the first embodiment of the present application;
FIG. 4 is a graph showing the relationship between the refractive index difference of liquid crystal molecules and temperature;
fig. 5 is a schematic structural diagram of a pixel electrode array of a display device according to a first embodiment of the present application;
FIG. 6 is a schematic diagram of the sub-pixel in the region B in FIG. 5;
fig. 7A to fig. 7C are schematic views illustrating another structure of a sub-pixel of the display device according to the present application;
fig. 8 is a cross-sectional view of a display device according to a second embodiment of the present application;
fig. 9 is a cross-sectional view of a display device according to a third embodiment of the present application.
Reference numerals illustrate:
the display device comprises a display device body 100, a display panel 10, a first substrate 11, an upper polarizing layer 111, an upper glass substrate 112, a common electrode 113, a color filter layer 114, a black matrix layer 115, a liquid crystal layer 12, liquid crystal molecules 120, a second substrate 13, a lower polarizing layer 131, a lower glass substrate 132, a TFT structure layer 133, sub-pixels 135, data lines 1351, scanning lines 1352, thin film transistors 1353, common electrode tracks 1354, pixel electrode arrays 14, pixel electrodes 142, main electrodes 1421, branch electrodes 1422, opening areas 1423, light reflecting units 15, a side-entering backlight module 20, a light guide plate 21, a light source 22 and a first direction-A.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the foregoing description of the present specification, the terms "fixed," "mounted," "connected," or "connected" are to be construed broadly, unless explicitly stated or limited otherwise. For example, in terms of the term "coupled," it may be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other. Therefore, unless otherwise specifically defined in the specification, a person skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.
The terms "first" and "second" in the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features shown. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.
In a display panel using a side-entry light source, the temperature of the display panel is higher as it approaches the light source, and the temperature is lower as it approaches the light source. Since the higher the temperature is, the lower the liquid crystal transmittance of the display panel is, the higher the liquid crystal transmittance of the display panel is, thereby causing uneven brightness of the entire display panel. To this end, the present application provides a display panel using a side-in light source but having uniform brightness throughout the display panel, and a display device using the same.
Referring to fig. 1 to 9, fig. 1 is a schematic structural diagram of a display device according to a first embodiment of the present application; fig. 2 is a cross-sectional view of a display device according to a first embodiment of the present application; FIG. 3 is a graph showing the relationship between the absorption axes of the first and second substrates and the azimuth angle of the liquid crystal molecules and the periodic function A of the display device according to the first embodiment of the present application; FIG. 4 is a graph showing the relationship between the refractive index difference of liquid crystal molecules and temperature; fig. 5 is a schematic structural diagram of a pixel electrode array of a display device according to a first embodiment of the present application; FIG. 6 is a schematic diagram of the sub-pixel in the region B in FIG. 5; fig. 7A to fig. 7C are schematic views illustrating another structure of a sub-pixel of the display device according to the present application; fig. 8 is a cross-sectional view of a display device according to a second embodiment of the present application; fig. 9 is a cross-sectional view of a display device according to a third embodiment of the present application.
Referring to fig. 1 and 2, a display device 100 according to a first embodiment of the present application generally includes a display panel 10 and a side-entry backlight module 20. Wherein the display panel 10 includes a first substrate 11, a liquid crystal layer 12, and a second substrate 13; the first substrate 11 and the second substrate 13 are arranged opposite to each other, and the liquid crystal layer 12 is arranged between the first substrate 11 and the second substrate 13; the side-entrance backlight module 20 includes a light guide plate 21 and a light source 22. The side-entry backlight module 20 may further include other functional layers, such as a reflective layer, without limitation.
Specifically, when the display device 100 is in operation, the light emitted from the light source 22 enters the display panel 10 through the light guide plate 21, the light entering the display panel 10 passes through the second substrate 13 and then passes through the liquid crystal layer 12, the arrangement mode of the liquid crystal molecules 120 in the liquid crystal layer 12 changes the polarization angle of the light, and finally the light exits through the first substrate 11, so that a corresponding picture is displayed. Therefore, the intensity and color of the light finally appearing can be controlled by changing the voltage applied to the liquid crystal molecules 120, so that the color combination with different hues can be changed on the display panel 10.
Referring to fig. 2, in the first embodiment of the present application, the first substrate 11 includes an upper polarizing layer 111, an upper glass substrate 112, a common electrode 113, a color filter layer 114, and a black matrix layer 115, which are stacked. The second substrate 13 includes a pixel electrode array 14 composed of a lower polarizing layer 131, a lower glass substrate 132, a TFT (Thin Film Transistor ) structure layer 133, and a plurality of pixel electrodes 142, which are stacked. The first substrate 11 and the second substrate 13 may further include other functional layers, such as an alignment layer, which is not limited herein.
The second substrate 13 is formed with a plurality of sub-pixels 135, each sub-pixel 135 includes a data line 1351, a scan line 1352, a thin film transistor 1353, and a pixel electrode 142, where the data line 1351, the scan line 1352, and the thin film transistor 1353 are disposed in the TFT structure layer 133, the gate electrode of the thin film transistor 1353 is connected to the scan line 1352, the source electrode and the drain electrode of the thin film transistor 1353 are electrically connected to the data line 1351 and the pixel electrode 142, for example, the source electrode of the thin film transistor 1353 is electrically connected to the data line 1351, and the drain electrode of the thin film transistor 1353 is electrically connected to the pixel electrode 142. It will be appreciated that the second substrate 13 has a plurality of data lines 1351 and scan lines 1352 arranged in a crossing manner, the plurality of data lines 1351 and scan lines 1352 arranged in a crossing manner define a plurality of pixel areas, and two adjacent data lines 1351 and two adjacent scan lines 1352 define a pixel area, within each of which one or more pixel electrodes 142 may be disposed. The present application will be described by taking one pixel electrode 142 provided in each pixel region as an example.
The transmittance T of the liquid crystal layer 12 is expressed as follows:
(formula 1);
(formula 2);
(formula 3);
wherein,,is the azimuth angle between the absorption axis of the upper and lower polarizing layers 111 and 131 and the long axis of the liquid crystal molecules 120, which is determined by the liquid crystal photoalignment, +.>Is of circumference rate>For the refractive index difference of the liquid crystal molecules 120 +.>Is thick in the liquid crystal cell.
Referring to fig. 3, a is a periodic function, and for VA display mode, in order to achieve maximum transmittance T,typically 45 ° where a=1, equation 1 can be simplified to equation 3.
Due to the display device 100 employing the side-entry backlight module 20, the temperature of the display panel 10 is higher as it approaches the light source 22, and the temperature is lower in the first direction a as it is farther from the light source 22. Referring to FIG. 4, the higher the temperature, the refractive index difference of the liquid crystal molecules 120The lower the luminance of the display panel 10, the lower the luminance, resulting in the display panel 10 becoming larger gradually in the first direction a away from the light source 22, the more the transmittance T of the liquid crystal layer 12 becomes, in particular, the luminance of the display panel 10 becomes larger gradually, resulting in uneven luminance.
As can be seen from equations 1, 2 and 4, the azimuth angle is in the range of 0-45 degreesThe larger the transmittance T of the display panel 10 is, the higher the luminance of the display panel 10 is. Therefore, in order to solve the problem of uneven brightness of the display panel 10 caused by the side-in backlight module 20, the slit angles of the plurality of pixel electrodes 142 on the second substrate 13 in the display panel 10 provided by the application gradually decrease in the first direction a, so that the transmittance T of the liquid crystal layer 12 on the display panel 10 in the first direction a decreases, thereby compensating for the influence of the temperature difference on the transmittance T of the display panel 10 caused by the liquid crystal layer 12 on the display panel 10 in the first direction a, and ensuring uniform brightness of the display panel 10.
It can be appreciated that in the case where an electric field is applied to the pixel electrode 142, the liquid crystal molecules 120 are turned over in the slit angle direction of the pixel electrode 142, i.e., the deflection angle of the liquid crystal molecules 120 is the same as the slit angle of the pixel electrode 142 in the operating state of the display panel 10. And the lower the temperature, the lower the refractive index difference of the liquid crystal molecules 120The larger the transmittance T of the display panel 10 is, in order to make the transmittance T of the display panel 10 in the first direction a away from the light source 22 unchanged, the deflection angle of the liquid crystal molecules 120 is gradually reduced by gradually decreasing the slit angle of the plurality of pixel electrodes 142 in the first direction a away from the light source 22, so that the display surfaceThe penetration rate tsubstrate of the plate 10 at any position in the first direction a remains unchanged. Specifically, the application compensates the influence of the temperature difference on the transmittance T of the display panel 10 in the first direction A by differentially compensating the transmittance T of the display panel 10 in the first direction A, thereby ensuring the uniform brightness of the display panel 10.
Referring to fig. 5 and 6, in order to provide the display panel 10 with better wide viewing angle characteristics and to improve the problem of uneven brightness, the present application adopts a multi-domain VA technology (Multidomain Vertical Alignment, MVA), i.e., one pixel electrode 142 is divided into a plurality of regions. Specifically, the pixel electrode 142 includes a main electrode 1421 and a plurality of branch electrodes 1422 connected to the main electrode 1421, where the main electrode 1421 is in a cross shape, the main electrode 1421 divides the pixel electrode 142 into four regions, any one region includes a plurality of branch electrodes 1422 arranged in parallel, and an included angle between the branch electrodes 1422 and the main electrode 1421 is a slit angle of the pixel electrode 142. The plurality of pixel electrodes 142 are arranged in an array, the plurality of pixel electrodes 142 parallel to the first direction a in the pixel electrode array 14 are rows of the pixel electrode array 14, and the plurality of pixel electrodes 142 perpendicular to the first direction a are columns of the pixel electrode array 14, and since the temperature of the display panel 10 is only related to the distance from the light source 22, the plurality of pixel electrodes 142 on the same column of the pixel electrode array 14 having the same distance from the light source 22 are the same as the distance from the light source 22, that is, the plurality of pixel electrodes 142 on the same column of the pixel electrode array 14 have the same temperature, and therefore, by arranging the slit angles of the pixel electrodes 142 on the same column in the pixel electrode array 14 to be the same, the slit angles of the pixel electrodes 142 on different columns are gradually reduced in the row direction, so that the transmittance T rate of the liquid crystal layer 12 on the whole display panel 10 is the same, and the brightness of the display panel 10 is uniform. Wherein the number of rows and the number of columns in the array may be the same or different. For example, if the display panel 10 is square, the number of rows and columns may be set to be the same; if the display panel 10 is rectangular, the number of rows and columns may be different according to the side length of the rectangle; if the display panel 10 has another shape, such as a circular shape or an elliptical shape, the plurality of pixel electrodes 142 may be arranged in different arrays according to practical situations, so long as the slit angles of the plurality of pixel electrodes 142 are ensured to gradually decrease in the first direction a.
Referring to fig. 6, in the present embodiment, in order to make the brightness of the display panel 10 more uniform, the slit angles of the plurality of pixel electrodes 142 decrease in an arithmetic progression in the first direction a. For example, in the first direction a, the difference in slit angles of adjacent two pixel electrodes 142 is 0.1 degrees, 0.2 degrees, 0.3 degrees, or 0.4 degrees. The difference in the slit angle of two adjacent pixel electrodes 142 is related to the number of columns of pixel electrodes 142 in the first direction a and the slit angle of the pixel electrode 142 furthest from the light source 22. For example, the slit angle of the pixel electrode 142 in the first direction a is reduced from 45 degrees or the like to 40 degrees, the column number of the pixel electrode 142 in the first direction a is 50, and the difference of the slit angles of the adjacent two pixel electrodes 142 is (45-40)/50=0.1 degrees.
In the present embodiment, the slit angle of the plurality of pixel electrodes 142 decreases from 45 degrees in the first direction a. For example, slit angles of the plurality of pixel electrodes 142 are Φ1, Φ2, Φ3, and Φ3 in this order in the first direction a. Specifically, the higher the temperature and the lower the transmittance T of the display panel 10 at a position closer to the light source 22, the more the transmittance T of the liquid crystal layer 12 at the position closer to the light source 22 is improved by setting the angle of the slit angle of the pixel at the position closer to the light source 22 to 45 degrees. Wherein, phi 1 is 45 degrees, phi 2 is 44.8 degrees, phi 3 is 44.6 degrees, and phi is 35 degrees, so that the transmittance T of the display panel 10 in the first direction a is sequentially weakened, and the influence of different temperatures on the liquid crystal layer 12 on the transmittance T is further compensated. Wherein, the minimum slit angle of the plurality of pixel electrodes 142 ranges from 30 degrees to 40 degrees. For example, the slit angle of the pixel electrode 142 farthest from the light source 22 in the first direction a may be 40 degrees, 38 degrees, 30 degrees, etc., and may be specifically determined according to the size of the display panel 10 and the number of pixel electrodes 142 in the first direction a.
In the present embodiment, the difference in slit angle between adjacent two pixel electrodes 142 in the first direction a is less than 0.5 degrees. It can be appreciated that if the difference between the slit angles of two adjacent pixel electrodes 142 in the first direction a is too large, the luminance of the display panel 10 at the boundary between the two pixel electrodes 142 is uneven due to the large difference between the transmittance of the two sides at the boundary between the two pixel electrodes 142.
In the present embodiment, the temperature of the liquid crystal layer 12 gradually decreases in the first direction a under the operating condition of the display panel 10, and the decreasing rule of the slit angles of the plurality of pixel electrodes 142 in the first direction a is the same as the decreasing rule of the temperature of the liquid crystal layer 12 in the first direction a. Specifically, the shape of the display panel 10 may be rectangular, circular, elliptical or other shapes, and the side-entrance backlight module 20 has some supporting and fixing structures in addition to the light guide plate 21. Due to the difference in the different shapes of the display panel 10 and the difference in the arrangement positions of the supporting and fixing structures in the side-entry backlight module 20, the change in the temperature of the display panel 10 may be a linear decrease or a non-linear decrease in the first direction a. Therefore, a corresponding trend or formula of the display panel 10 in the first direction a and the temperature may be obtained according to experiments, so that the rule of decreasing the slit angles of the plurality of pixel electrodes 142 in the first direction a is set according to the corresponding trend or formula. This can more effectively improve the luminance uniformity of the display panel 10.
Referring to fig. 7A to 7C, the pixel electrode 142 shown in fig. 7A to 7C is described only as an example, and the specific structure thereof is substantially the same as that of the pixel electrode 142 shown in fig. 6.
Referring to fig. 7A, the sub-pixel 135 provided by the present application further includes a common electrode trace 1354, where the common electrode trace 1354 overlaps each pixel electrode 142 partially to form a storage capacitor, and in the first direction a, an overlapping area of the common electrode trace 1354 and each pixel electrode gradually decreases.
Specifically, the common electrode trace 1354 is disposed in the TFT structure layer 133, for example, the common electrode trace 134 is disposed in the same layer as the scan line 1352. The common electrode 113 is electrically connected with each sub-pixel 135 through the common electrode wiring 1354, a storage capacitor is formed between the common electrode wiring 1354 and each pixel electrode 142 in a matched mode, the storage capacitor can keep the brightness of the display panel 10 stable, the larger the capacitance value of the storage capacitor is, the longer the brightness of the display panel 10 is kept, the overlapping area of the common electrode wiring 1354 and each pixel electrode is gradually reduced through setting the first direction A, the storage capacitors of the sub-pixels 135 in the first direction A are gradually reduced, the farther the brightness decay is faster, the closer the brightness decay is to the light source 22 is, the more differentiated the brightness unevenness caused by the influence of different temperatures on the transmittance T is compensated, and the whole brightness of the display panel 10 is more uniform.
Specifically, the larger the projected coverage area of the common electrode trace 1354 on each pixel electrode 142, the larger the capacitance value of the storage capacitor formed between the common electrode trace 1354 and each pixel electrode 142, referring to fig. 7A, in the first direction a, the projected overlapping areas of the plurality of pixel electrodes 142 and the common electrode trace 1354 are sequentially S1, S2, S3, & gt. As can be appreciated, the area of the liquid crystal layer 12 closer to the light source 22 is more affected by temperature, and the projected overlapping area of the pixel electrode 142 and the common electrode trace 1354 is differently set in the first direction a in this embodiment, so that the influence of the light source 22 on the transmittance T of different areas of the liquid crystal layer 12 is reduced, and the brightness of the display panel 10 is uniform.
In this embodiment, as shown in fig. 7A, the pixel electrode 142 further has an opening area 1423 for circulating light, and the light emitted from the light source 22 enters the liquid crystal layer 12 through the opening area 1423, and by changing the size of the pixel electrode 142, the size of the common electrode trace 1354 is unchanged, so that in the first direction a, the projection overlapping area of the pixel electrode 142 on the common electrode trace 1354 is gradually reduced. The opening region 1423 in the present application refers to a region of the pixel electrode 142 not covered by the metal layer (e.g., the common electrode trace 1354), and an opening allowing light to pass through is formed in the opening region 1423. In this embodiment, the size of the pixel electrode 142 may also be unchanged when the size of the common electrode trace 1354 is changed, so that the projected overlapping area of the pixel electrode 142 on the common electrode trace 1354 is gradually reduced in the first direction a. Of course, the sizes of the pixel electrode 142 and the common electrode trace 1354 may not be changed, and the relative positions of the pixel electrode 142 and the common electrode trace 1354 may be changed, so that the projection overlapping area of the pixel electrode 142 on the common electrode trace 1354 in the first direction a is gradually reduced, which is not limited herein.
There may also be a coupling capacitance in the display panel 10, for example, between the pixel electrode 142 and the data line 1351, or between the pixel electrode 142 and the scan line 1352. And the effect of the coupling capacitance is opposite to that of the storage capacitance, the larger the coupling capacitance is, the shorter the luminance of the display panel 10 is maintained. For this reason, the present application can also adjust the luminance uniformity of the display panel 10 using the coupling capacitance. Specifically, since the coupling capacitance between the pixel electrode 142 and the data line 1351 is relatively obvious, and other coupling capacitances are negligible, the present application is described by taking the coupling capacitance between the pixel electrode 142 and the data line 1351 as an example. The present application makes the coupling capacitance between the pixel electrode 142 and the data line 1351 larger and larger in the first direction a. For example, referring to fig. 7B, the present embodiment provides the plurality of pixel electrodes 142 with distances d1, d2, d3, and dn in order of d1> d2> d3>. In the first direction a. The present application can gradually decrease the distance between the pixel electrode 142 and the data line 1351 without affecting the aperture ratio of the display panel 10 by gradually increasing the width (refer to the dimension along the first direction a) of the pixel electrode 142 in the first direction a.
It can be understood that in order to keep the aperture ratio of the display panel 10 unchanged, the common electrode trace 1354 remains unchanged in the first direction a. If only the width of the pixel electrode 142 is gradually increased, the overlapping area of the pixel electrode 142 and the common electrode wiring 1354 is gradually increased, i.e., the storage capacitance is gradually increased. Referring to fig. 7C, for this reason, the present application gradually reduces the length (which refers to the dimension in the direction perpendicular to the first direction a) of the pixel electrode 142 while gradually increasing the width of the pixel electrode 142 in the first direction a, thereby gradually reducing the storage capacitance of the plurality of sub-pixels 135 in the first direction a.
Referring to fig. 8, a display device 100 according to a second embodiment of the present application includes a display panel 10 and a side-entry backlight module 20. Wherein the display panel 10 includes a first substrate 11, a liquid crystal layer 12, and a second substrate 13; the first substrate 11 and the second substrate 13 are arranged opposite to each other, and the liquid crystal layer 12 is arranged between the first substrate 11 and the second substrate 13; the side-entrance backlight module 20 includes a light guide plate 21 and a light source 22.
The display device 100 according to the second embodiment of the present application has substantially the same structure as the display device 100 according to the first embodiment of the present application, except that the display device 100 according to the second embodiment of the present application further includes a light reflecting unit 15. Specifically, the plurality of light reflecting units 15 are disposed on the surface of the first substrate 11 near the second substrate 13, and the areas of the plurality of light reflecting units 15 gradually decrease in the first direction a.
In the present embodiment, in order to further improve the uniformity of the brightness of the display panel 10, a plurality of light reflecting units 15 are further disposed on the first substrate 11 at intervals, and the areas of the plurality of light reflecting units 15 gradually decrease in the first direction a. Specifically, the light reflecting unit 15 is configured to reflect the light refracted onto the light reflecting unit, the area of the light reflecting unit 15 closer to the light source 22 is larger, the reflection amount of the light is larger, and part of the light reflected by the light reflecting unit 15 can pass through the gaps between the light reflecting units 15 again and then penetrate through the first substrate 11 to exit, so as to increase the light exit amount of the display panel 10 closer to the light source 22. In the first direction a, the areas of the plurality of light reflecting units 15 gradually decrease, and thus, the compensation of the light emission amount of the display panel 10 by the plurality of light reflecting units 15 in the first direction a gradually decreases, and the influence of the temperature difference on the transmittance T of the liquid crystal layer 12 of the display panel 10 in the first direction a of the display panel 10 is compensated by differentially compensating the light emission amount of the display panel 10 in the first direction a, so that the brightness of the display panel 10 is uniform. In this embodiment, the materials of the light reflecting units 15 are the same, but the area is gradually reduced in the first direction a, so that the manufacturing process can be simplified, and the product assembly is facilitated.
The material of the light reflecting unit 15 includes a metal or a metal alloy, which has a function of reflecting light. Specifically, the material of the light reflecting unit 15 may be a metal that is excellent in light reflection, such as copper, aluminum, tin, titanium, chromium, or an alloy composed of at least two of the foregoing metals.
Referring to fig. 8, in the present embodiment, a plurality of light reflecting units 15 are disposed on a side surface of the black matrix layer 115 near the second substrate 13, and the lengths and/or widths of the plurality of light reflecting units 15 gradually decrease in the first direction a. Specifically, the black matrix layer 115 is used for reducing the interference of color mixing between rubber and plastics; shielding the pixel from light leakage; by providing a plurality of light reflecting means 15 on the side of the black matrix layer 115 close to the second substrate 13, the contrast of the display panel 10 is increased, and the portion of the light irradiated to the black matrix layer 115 is reflected by the light reflecting means 15, which corresponds to the utilization of the light that would have been absorbed by the black matrix layer 115. Further, in the first direction a, the areas of the plurality of light reflecting units 15 gradually decrease, and thus, the light emission amount compensation of the plurality of light reflecting units 15 on the display panel 10 in the first direction a gradually decreases, and the influence of the temperature difference on the transmittance T of the liquid crystal layer 12 of the display panel 10 in the first direction a of the display panel 10 is compensated by differentially compensating the light emission amount of the display panel 10 in the first direction a, thereby making the brightness of the display panel 10 uniform.
In the present embodiment, instead of providing the dedicated light reflecting means 15 on the surface of the black matrix layer 115, reflective particles may be added to the material of the black matrix layer 115, that is, the black matrix layer 115 to which the reflective particles are added may be used as the light reflecting means 15. The content of the reflective particles added in the black matrix layer 115 is gradually reduced in the first direction a, so that the light emission amount compensation of the display panel 10 is gradually reduced in the first direction a, the influence of the temperature difference on the transmittance T of the liquid crystal layer 12 of the display panel 10 in the first direction a of the display panel 10 is compensated, and the brightness of the display panel 10 is uniform.
Referring to fig. 9, a display device 100 according to a third embodiment of the present application includes a display panel 10 and a side-entry backlight module 20. Wherein the display panel 10 includes a first substrate 11, a liquid crystal layer 12, and a second substrate 13; the first substrate 11 and the second substrate 13 are arranged opposite to each other, and the liquid crystal layer 12 is arranged between the first substrate 11 and the second substrate 13; the side-entrance backlight module 20 includes a light guide plate 21 and a light source 22.
The display device 100 according to the third embodiment of the present application has substantially the same structure as the display device 100 according to the second embodiment of the present application, except that the light reflecting unit 15 of the display device 100 according to the third embodiment of the present application is used as the black matrix layer 115.
Specifically, in the present embodiment, the first substrate 11 is not provided with the black matrix layer 115, and the plurality of light reflecting units 15 are used as the black matrix layer 115. Specifically, the light reflecting unit 15 is disposed on the first substrate 11 and corresponds to the position of the black matrix layer 115. The plurality of light reflecting units 15 may be a metal or an alloy thereof having gradually decreasing reflectivity in the first direction a, and the areas of the plurality of light reflecting units 15 may be the same in the first direction a. Specifically, the reflectance of the light reflecting unit 15 is greater the closer to the light source 22, the more the amount of reflection of light is; the smaller the reflectivity of the light reflecting unit 15 far from the light source 22, the smaller the reflection amount of the light, and therefore, the light emitting amount compensation of the display panel 10 by the plurality of light reflecting units 15 in the first direction a is gradually reduced, and the light emitting amount of the display panel 10 in the first direction a is compensated by the differentiation compensation, so that the influence of the temperature difference on the transmittance T of the liquid crystal layer 12 of the display panel 10 by the display panel 10 in the first direction a is compensated, and the brightness of the display panel 10 is further uniform.
The display panel 10 and the display device 100 provided by the application comprise a first substrate 11, a second substrate 13 and a liquid crystal layer 12; the first substrate 11 and the second substrate 13 are disposed opposite to each other, the second substrate 13 is formed with a plurality of sub-pixels 135, each sub-pixel 135 includes a data line 1351, a scan line 1352, a thin film transistor 1353 and a pixel electrode 142, wherein the data line 1351, the scan line 1352, the thin film transistor 1353 are disposed in the TFT structure layer 133, the gate electrode of the thin film transistor 1353 is connected to the scan line 1352, the source electrode and the drain electrode of the thin film transistor 1353 are respectively electrically connected to the data line 1351 and the pixel electrode 142, and the liquid crystal layer 12 is disposed between the first substrate 11 and the second substrate 13. The second substrate 13 includes a plurality of pixel electrodes 142, and slit angles of the plurality of pixel electrodes 142 gradually decrease in the first direction a, so that when the display device 100 operates, an effect of a temperature difference on the transmittance T of the liquid crystal layer 12 of the display panel 10 in the first direction a is compensated, so that the brightness of the display panel 10 is uniform.
The foregoing is only the embodiments of the present application, and therefore, the patent scope of the application is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present application and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the application.
Claims (10)
1. A display panel, comprising:
a first substrate;
the second substrate is arranged opposite to the first substrate, a plurality of sub-pixels are formed on the second substrate, each sub-pixel comprises a data line, a scanning line, a thin film transistor and a pixel electrode, the grid electrode of the thin film transistor is connected with the scanning line, and the source electrode and the drain electrode of the thin film transistor are respectively and electrically connected with the data line and the pixel electrode; the sub-pixel also comprises a common electrode wire, the common electrode wire and the scanning wire are arranged on the same layer, and the common electrode wire is a metal layer; a coupling capacitor is formed between the pixel electrode and the data line, the common electrode wiring is partially overlapped with the pixel electrode to form a storage capacitor, and an area of the pixel electrode which is not covered by the common electrode wiring is defined as an opening area;
a liquid crystal layer disposed between the first substrate and the second substrate;
wherein slit angles of the plurality of pixel electrodes gradually decrease in a first direction defined as a direction in which a temperature gradually decreases when the display panel is in use so that a transmittance of the liquid crystal layer gradually decreases in the first direction;
in the first direction, the common electrode wiring is kept unchanged, so that the opening ratio of the display panel is unchanged; in the first direction, the width of the pixel electrode gradually increases, so that the distance between the data line and the pixel electrode gradually decreases, thereby gradually increasing the coupling capacitance between the data line and the pixel electrode in the first direction, the width of the pixel electrode referring to the dimension along the first direction; and, in the first direction, the length of the pixel electrode is gradually reduced so that the storage capacitance of the plurality of sub-pixels is gradually reduced in the first direction, the length of the pixel electrode referring to a dimension in a direction perpendicular to the first direction.
2. The display panel of claim 1, wherein the display panel comprises,
the pixel electrode comprises a main electrode and a plurality of branch electrodes connected with the main electrode, the main electrode is in a cross shape, the main electrode divides the pixel electrode into four first areas, any one of the first areas comprises a plurality of branch electrodes which are arranged in parallel, the included angle between the branch electrodes and the main electrode is the slit angle of the pixel electrode, and the slit angles of the pixel electrodes are reduced in an arithmetic array in the first direction.
3. The display panel of claim 1, wherein the display panel comprises,
in the first direction, a slit angle of the plurality of pixel electrodes decreases from 45 degrees, and a minimum slit angle of the plurality of pixel electrodes ranges from 30 degrees to 40 degrees.
4. The display panel of claim 1, wherein the display panel comprises,
in the first direction, a difference between slit angles of two adjacent pixel electrodes is less than 0.5 degrees.
5. The display panel of claim 1, wherein the display panel is rectangular, circular, or oval.
6. The display panel according to any one of claims 1 to 5, wherein,
the first substrate comprises a plurality of reflective units which are arranged at intervals, and the reflective units are arranged on the surface of the first substrate, which is close to the second substrate; the areas of the plurality of light reflecting units gradually decrease in the first direction.
7. The display panel of claim 6, wherein the first substrate further comprises:
a black matrix layer; the plurality of light reflecting units are arranged on one side, close to the second substrate, of the black matrix layer, and the lengths and/or the widths of the plurality of light reflecting units are gradually reduced in the first direction.
8. The display panel of claim 6, wherein the display panel comprises,
the material of the light reflecting unit comprises metal or alloy thereof.
9. The display panel of claim 1, wherein the display panel comprises,
the pixel electrodes are arranged in an array, the slit angles of the pixel electrodes in the same column are the same, and the slit angles of the pixel electrodes in different columns are gradually reduced in the row direction.
10. A display device, comprising:
a display panel comprising the display panel of any one of claims 1-9;
the side-entering type backlight module comprises a light guide plate and a light source, wherein the first direction is from the side-entering type backlight module to the far direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210331850.4A CN114815387B (en) | 2022-03-30 | 2022-03-30 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210331850.4A CN114815387B (en) | 2022-03-30 | 2022-03-30 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114815387A CN114815387A (en) | 2022-07-29 |
| CN114815387B true CN114815387B (en) | 2023-10-24 |
Family
ID=82532052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210331850.4A Active CN114815387B (en) | 2022-03-30 | 2022-03-30 | Display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114815387B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115376416A (en) * | 2022-09-15 | 2022-11-22 | 厦门天马微电子有限公司 | Display panel and display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007328200A (en) * | 2006-06-08 | 2007-12-20 | Sharp Corp | Display apparatus |
| CN104267547A (en) * | 2014-09-24 | 2015-01-07 | 京东方科技集团股份有限公司 | Array substrate and display device |
| CN104656306A (en) * | 2015-03-23 | 2015-05-27 | 京东方科技集团股份有限公司 | Substrate provided with black matrix, manufacturing method of substrate and display device |
| CN112198723A (en) * | 2020-10-09 | 2021-01-08 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display screen and liquid crystal display device |
| CN113168059A (en) * | 2018-12-05 | 2021-07-23 | 株式会社日本显示器 | Display device |
-
2022
- 2022-03-30 CN CN202210331850.4A patent/CN114815387B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007328200A (en) * | 2006-06-08 | 2007-12-20 | Sharp Corp | Display apparatus |
| CN104267547A (en) * | 2014-09-24 | 2015-01-07 | 京东方科技集团股份有限公司 | Array substrate and display device |
| CN104656306A (en) * | 2015-03-23 | 2015-05-27 | 京东方科技集团股份有限公司 | Substrate provided with black matrix, manufacturing method of substrate and display device |
| CN113168059A (en) * | 2018-12-05 | 2021-07-23 | 株式会社日本显示器 | Display device |
| CN112198723A (en) * | 2020-10-09 | 2021-01-08 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display screen and liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114815387A (en) | 2022-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11287699B2 (en) | Liquid crystal display | |
| US7679700B2 (en) | Transflective liquid crystal display apparatus | |
| US7760295B2 (en) | Liquid crystal display device and electronic apparatus | |
| KR101059287B1 (en) | Liquid crystal display and electronic device | |
| US9341898B2 (en) | Liquid crystal display device | |
| US7697101B2 (en) | Array substrate and liquid crystal display device using the same with parallelogrammic pixel region | |
| US7619707B2 (en) | Multi-domain liquid crystal display | |
| TWI678583B (en) | Display device | |
| US20080007681A1 (en) | Thin film transistor substrate, liquid crystal panel and liquid crystal display device using the same | |
| US20090091669A1 (en) | Multi-domain liquid crystal display and array substrate thereof | |
| US7982820B2 (en) | Liquid crystal display with narrow angular range of incident light and method of making the display | |
| US20100045915A1 (en) | Liquid crystal display | |
| US10203556B2 (en) | Display substrate having pre-tilt angle for liquid crystal molecules | |
| US20230141490A1 (en) | Thin film transistor, array substrate and display device | |
| US20150205151A1 (en) | Liquid crystal display device | |
| CN114815387B (en) | Display panel and display device | |
| KR20040038818A (en) | Substrate for liquid crystal display device and liquid crystal device with the same | |
| US8780302B2 (en) | Liquid crystal display device | |
| CN113741108A (en) | Array substrate, display panel and display device | |
| US9250486B2 (en) | Liquid crystal display device | |
| US11281061B2 (en) | Display panel, method for manufacturing display panel, and display device | |
| US7982833B2 (en) | Transflective liquid crystal display panel having a plurality of apertures with a specific ratio of aperture width to aperture interval | |
| CN114815418B (en) | Display panel and display device | |
| CN115993742A (en) | Array substrate and display panel | |
| US20130141685A1 (en) | Array substrate and liquid crystal display |
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 |