CN216562344U - Display structure and display panel - Google Patents
Display structure and display panel Download PDFInfo
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- CN216562344U CN216562344U CN202123231280.1U CN202123231280U CN216562344U CN 216562344 U CN216562344 U CN 216562344U CN 202123231280 U CN202123231280 U CN 202123231280U CN 216562344 U CN216562344 U CN 216562344U
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Abstract
The utility model belongs to the field of display technology equipment, and particularly relates to a display structure and a display panel. The display structure includes: the liquid crystal display panel comprises a back plate, a packaging plate arranged opposite to the back plate, a first polaroid connected with the back plate, a second polaroid, a liquid crystal assembly and a display chip, wherein the polarization direction of the second polaroid is orthogonal to the polarization direction of the first polaroid and is connected with the packaging plate, the back plate is provided with a display area and a non-display area, the display chip is arranged in the display area, the second polaroid is opposite to the non-display area, and the liquid crystal assembly is arranged in the non-display area and between the back plate and the packaging plate. The liquid crystal assembly has a first state and a second state, when the liquid crystal assembly is in the first state, the display chip is lightened, and the liquid crystal assembly limits the light rays incident to the first polaroid to be emitted from the second polaroid; when the liquid crystal assembly is in the second state, the display chip is extinguished, and the liquid crystal assembly allows the light rays incident to the first polaroid to be emitted from the second polaroid. The utility model can improve the display effect and the contrast of the display structure.
Description
Technical Field
The utility model belongs to the field of display technology equipment, and particularly relates to a display structure and a display panel.
Background
At present, with the development of the photoelectric display technology and the semiconductor manufacturing technology, the display technology has been developed from LCD (liquid Crystal display) to OLED (Organic Light-Emitting Diode) and further to micro LED, and due to the characteristics of small chip size, high integration level, self-luminescence and the like of the micro LED, compared with LCD and OLED, the display technology has greater advantages in brightness, resolution, contrast, energy consumption, service life, response speed, thermal stability and the like, and meanwhile, the small chip size means high Light transmittance, and can be widely applied to transparent display devices.
However, due to the influence of ambient Light on the Light Emitting area, the contrast ratio is reduced and the display effect is deteriorated, and a common solution is to fill a black material between two adjacent LEDs (Light-Emitting diodes) to block ambient Light from passing through, but the black material always exists no matter whether the LEDs are turned on, which seriously affects the Light transmittance and restricts the application of transparent display.
SUMMERY OF THE UTILITY MODEL
An object of the embodiments of the present application is to provide a display structure, which aims to solve the problem of how to improve the contrast and the display effect of the display structure so as to improve the application thereof.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: there is provided a display structure, comprising: the liquid crystal display panel comprises a back plate, a packaging plate arranged opposite to the back plate, a first polaroid connected with the back plate, a second polaroid, a liquid crystal assembly and a display chip, wherein the polarization direction of the second polaroid is orthogonal to that of the first polaroid and is connected with the packaging plate; the liquid crystal assembly has a first state and a second state, when the liquid crystal assembly is in the first state, the display chip is lightened, and the liquid crystal assembly limits light rays incident to the first polarizer to be emitted out of the second polarizer; when the liquid crystal assembly is in the second state, the display chip is turned off, and the liquid crystal assembly allows the light rays entering the first polaroid to be emitted out from the second polaroid.
In one embodiment, the liquid crystal assembly comprises a first alignment film connected with the back plate, a second alignment film arranged opposite to the first alignment film and connected with the packaging plate, and a liquid crystal layer positioned between the first alignment film and the second alignment film; when the liquid crystal layer is in the first state, the liquid crystal alignment direction of the liquid crystal layer is vertical to the plate surface of the packaging plate; when the liquid crystal layer is in the second state, the liquid crystal alignment direction of the liquid crystal layer is parallel to the plate surface of the packaging plate.
In one embodiment, the liquid crystal layer is a twisted nematic liquid crystal layer.
In one embodiment, the liquid crystal layer is a parallel-aligned nematic liquid crystal layer, and a liquid crystal azimuth angle of the liquid crystal layer and a polarization direction of the first polarizer have a predetermined included angle.
In one embodiment, the included angle has a value of 45 degrees.
In one embodiment, when the liquid crystal device is in the second state, the voltage of the first alignment film is greater than the voltage of the second alignment film, and the difference between the voltage of the first alignment film and the voltage of the second alignment film is a predetermined value.
In one embodiment, the display structure further includes a positive electrode layer and a negative electrode layer coated on the back plate, two electrodes of the display chip are respectively electrically connected to the positive electrode layer and the negative electrode layer, the first alignment film is electrically connected to the positive electrode layer, and the display structure further includes an electrode film layer coated on the package plate and electrically connected to the second alignment film.
In one embodiment, the first polarizer covers the display region and the non-display region.
In one embodiment, the display structure further comprises a rubber frame, wherein the rubber frame is arranged along the circumferential direction of the back plate or the packaging plate and is used for hermetically connecting the back plate and the packaging plate.
Another object of the present application is to provide a display panel, which includes the display structure as described above, the display panel further includes a driving circuit layer connected to the back plate and configured to drive the display chip and the liquid crystal module, the driving circuit layer includes a buffer layer, a gate insulating layer, an interlayer insulating layer, and an organic insulating flat layer sequentially disposed on the back plate.
The beneficial effect of this application lies in: when the liquid crystal assembly is in the first state, the display chip or the LED emits light, the liquid crystal assembly of the adjacent area does not act on the ambient light passing through the first polarizer, the polarization direction of the liquid crystal assembly cannot be changed, and the liquid crystal assembly cannot pass through the second polarizer, so that the liquid crystal assembly forms a shading effect. When the liquid crystal assembly is in the second state and the display chip or the LED is extinguished or does not emit light, namely the display panel is not lightened or the non-luminous area is not emitted, the ambient light enters the liquid crystal assembly from the first polaroid and can be emitted from the second polaroid through the action of the liquid crystal assembly, so that the display structure is kept transparent. Therefore, the transparency of the display structure is improved, the display area can keep high contrast and good display effect when the micro LED display panel emits light, and the non-display area can keep transparent when the micro LED display panel does not emit light or is not lightened, so that the application range of the display structure is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic diagram illustrating a liquid crystal assembly of a display structure in a first state according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating a liquid crystal module of a display structure in a second state according to an embodiment of the present disclosure.
Wherein, in the figures, the respective reference numerals:
100. a display structure; 11. a first polarizer; 12. a second polarizer; 13. a back plate; 14. a package board; 15. an electrode film layer; 16. a negative electrode layer; 17. a positive electrode layer; 20. a liquid crystal module; 21. a first alignment film; 22. a second alignment film; 23. a liquid crystal layer; 41. a buffer layer; 42. a gate insulating layer; 43. an interlayer insulating layer; 44. an organic insulating planarization layer; 48. a semiconductor layer; 45. a source electrode; 46. a drain electrode; 47. a gate electrode; 49. a common voltage; 30. a display chip;
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and operate, and thus are not to be construed as limiting the present application, and the specific meanings of the above terms may be understood by those skilled in the art according to specific situations. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
Referring to fig. 1 and 2, a display structure 100 and a display panel having the same are provided in an embodiment of the present disclosure. The display structure 100 includes: the backlight module comprises a back plate 13, a packaging plate 14 arranged opposite to the back plate 13, a first polaroid 11 connected with the back plate 13, a second polaroid 12, a liquid crystal module 20 and a display chip 30, wherein the polarization direction of the second polaroid is orthogonal to the polarization direction of the first polaroid 11 and is connected with the packaging plate 14. It is understood that the back plate 13 is a back plate 13 made of a light transmissive material, and optionally, the back plate 13 is a back plate 13 made of Low Temperature Poly-silicon (LTPS).
Optionally, the back plate 13 and the package plate 14 are both transparent glass substrates.
Referring to fig. 1 and fig. 2, optionally, the first polarizer 11 is located on the surface of the back plate 13 opposite to the packaging plate 14, and the second polarizer 12 is located on the surface of the packaging plate 14 opposite to the back plate 13, that is, the back plate 13 and the packaging plate 14 are located between the first polarizer 11 and the second polarizer 12. The first polarizing plate 11 and the second polarizing plate 12 allow light rays conforming to their polarization directions to exit.
Referring to fig. 1 and fig. 2, the back plate 13 has a display area 102 and a non-display area 101, the display chip 30 is disposed in the display area 102, the second polarizer 12 is disposed opposite to the non-display area 101, and the liquid crystal module 20 is disposed in the non-display area 101 and between the back plate 13 and the packaging plate 14. It is understood that the display area 102 and the non-display area 101 are disposed adjacent to each other, the display chip 30 is located in the display area 102 and connected to the back plate 13, and the second polarizer 12 is disposed opposite to the back plate 13 and opposite to the non-display area 101. Optionally, the display chip 30 in this embodiment is an LED chip, so that the display panel in this embodiment is a micro LED display panel.
Referring to fig. 1 and fig. 2, the liquid crystal device 20 has a first state and a second state, when the liquid crystal device 20 is in the first state, the display chip 30 is turned on, and the liquid crystal device 20 restricts light incident to the first polarizer 11 from being emitted from the second polarizer 12; when the liquid crystal module 20 is in the second state, the display chip 30 is turned off, and the liquid crystal module 20 allows the light incident on the first polarizer 11 to be emitted from the second polarizer 12.
Referring to fig. 1 and fig. 2, alternatively, when the liquid crystal device 20 is in the first state and the display chip 30 or the LED emits light, the liquid crystal device 20 in the adjacent area does not act on the ambient light passing through the first polarizer 11, and the liquid crystal device 20 does not change its polarization direction, so that it cannot pass through the second polarizer 12, thereby forming a light-shielding effect. When the liquid crystal module 20 is in the second state and the display chip 30 or LED is off or does not emit light, i.e. the display panel is not lit or is not emitting light, ambient light enters the liquid crystal module 20 from the first polarizer 11 and can be emitted from the second polarizer 12 by the action of the liquid crystal module 20, so that the display structure 100 remains transparent. Therefore, the transparency of the display structure 100 is improved, the display area 102 can maintain high contrast and good display effect when the micro LED display panel emits light, and the non-display area 101 can maintain transparency when the micro LED display panel does not emit light or is not lighted, so that the application range of the display structure 100 is improved.
Referring to fig. 1 and fig. 2, in one embodiment, the liquid crystal module 20 includes a first alignment film 21 connected to the back plate 13, a second alignment film 22 disposed opposite to the first alignment film 21 and connected to the package plate 14, and a liquid crystal layer 23 disposed between the first alignment film 21 and the second alignment film 22; when the liquid crystal layer 23 is in the first state, the alignment direction of the liquid crystal layer 23 is perpendicular to the plate surface of the package plate 14; when the liquid crystal layer 23 is in the second state, the liquid crystal alignment direction of the liquid crystal layer 23 is parallel to the plate surface of the package plate 14.
Referring to fig. 1 and fig. 2, optionally, when the liquid crystal layer 23 is in the first state, the liquid crystal alignment direction of the liquid crystal layer 23 is perpendicular to the surface of the package board 14 or the back board 13, so that the ambient light incident on the first polarizer 11 does not pass through the liquid crystal layer 23, and cannot be emitted from the second polarizer 12, so that the liquid crystal layer 23 can play a role in shading light, and the display effect of the display chip 30 is improved; when the liquid crystal layer 23 is in the second state, the liquid crystal alignment direction of the liquid crystal layer 23 is parallel to the surface of the package plate 14 or the back plate 13, so that the liquid crystal layer 23 acts on the ambient light, and the ambient light can be emitted from the second polarizer 12, so that the non-display region 101 is transparent.
In one embodiment, the liquid crystal layer 23 is a twisted nematic liquid crystal layer.
Alternatively, when the twisted nematic liquid crystal layer is in the second state, the liquid crystals of the twisted nematic liquid crystal layer are horizontally aligned, and natural light is linearly polarized by the first polarizing plate 11 and the polarization direction is changed by 90 ° by the action of the liquid crystal layer 23, so that the natural light can be emitted from the second polarizing plate 12, thereby making the non-display region 101 transparent.
It can be understood that, when the liquid crystal module 20 is in the first state and the liquid crystal of the twisted nematic liquid crystal layer is vertically aligned by applying a predetermined voltage to the first alignment film 21 and the second alignment film 22, the liquid crystal layer 23 does not act on natural light incident on the first polarizer 11, so that the natural light cannot be emitted from the second polarizer 12, thereby the twisted nematic liquid crystal layer acts as a light blocking function, and the display effect of the display chip 30 is improved.
Referring to fig. 1 and fig. 2, in an embodiment, the liquid crystal layer 23 is a parallel-aligned nematic liquid crystal layer, and a liquid crystal azimuth angle of the liquid crystal layer 23 and a polarization direction of the first polarizer 11 have a predetermined included angle.
Referring to fig. 1 and 2, optionally, when the parallel-aligned nematic liquid crystal layer is in the second state, that is, when the liquid crystal of the liquid crystal layer 23 is horizontally aligned, an included angle is formed between an azimuth angle of the liquid crystal layer 23 and a polarization direction of the first polarizer 11, natural light becomes linearly polarized light when passing through the first polarizer 11 and becomes elliptically polarized light by the action of the liquid crystal layer, and a part of light can be emitted from the upper polarizer, so that the non-display region 101 remains transparent.
It can be understood that, when the liquid crystal module 20 is in the first state and the liquid crystal of the parallel alignment nematic liquid crystal layer is horizontally aligned by applying a predetermined voltage to the first alignment film 21 and the second alignment film 22, the liquid crystal layer 23 does not act on natural light incident on the first polarizer 11, so that the natural light cannot be emitted from the second polarizer 12, and thus the parallel alignment nematic liquid crystal layer acts as a light blocking function, and the display effect of the display chip 30 is improved.
Referring to fig. 1 and 2, in an embodiment, the included angle is 45 degrees, and at this time, the transmittance of the light is the highest.
In one embodiment, when the liquid crystal device 20 is in the second state, the voltage of the first alignment film 21 is greater than the voltage of the second alignment film 22, and the difference between the voltage of the first alignment film 21 and the voltage of the second alignment film 22 is a predetermined value.
Alternatively, the second alignment film 22 is a positive electrode, the first alignment film 21 is connected to a negative electrode, and the difference between the voltage of the first alignment film 21 and the voltage of the second alignment film 22 is larger than the voltage required for the liquid crystal of the liquid crystal layer 23 to change from horizontal to vertical.
In one embodiment, the display structure 100 further includes a positive electrode layer 17 and a negative electrode layer 16 coated on the back plate 13, two electrodes of the display chip 30 are respectively electrically connected to the positive electrode layer 17 and the negative electrode layer 16, the first alignment film 21 is electrically connected to the positive electrode layer 17, and the display structure 100 further includes an electrode film layer 15 coated on the package plate 14 and electrically connected to the second alignment film 22.
Referring to fig. 1 and fig. 2, optionally, the electrode film layer 15 and the negative electrode layer 16 are both electrically connected to the common voltage 49 of the display structure 100.
In one embodiment, the first polarizer 11 covers the display region 102 and the non-display region 101.
Referring to fig. 1 and 2, optionally, the first polarizer 11 completely covers the display area 102 and the non-display area 101 so as to fully polarize the natural light incident to the back plate 13 and improve the display effect.
In one embodiment, the display structure 100 further comprises a glue frame disposed along a circumference of the back plate 13 or the package plate 14 and hermetically connecting the back plate 13 and the package plate 14.
Referring to fig. 1 and fig. 2, optionally, the rubber frame, the back plate 13 and the package plate 14 form a closed accommodating space.
The utility model also provides a display panel, should show structure 100 including, this shows structure 100's concrete structure refers to above-mentioned embodiment, because this display panel has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought equally, and the repeated description is no longer given here.
Referring to fig. 1 and 2, in an embodiment, the display panel further includes a driving circuit layer connected to the back plate 13 and configured to drive the display chip 30 and the liquid crystal module 20.
The driving circuit layer includes a buffer layer 41, a gate insulating layer 42, an interlayer insulating layer 43, and an organic insulating planarization layer 44 sequentially disposed on the back plate 13.
Optionally, the driving circuit layer further includes a semiconductor layer 48 between the buffer layer 41 and the gate insulating layer 42, a source electrode 45 and a drain electrode 46 on the interlayer insulating layer 43, and a gate electrode 47 between the gate insulating layer 42 and the interlayer insulating layer 43.
Referring to fig. 1 and 2, alternatively, the buffer layer 41 and the gate insulating layer 42 are made of silicon oxide or silicon nitride, the semiconductor layer 48 is made of polysilicon, and the gate 47 is made of aluminum, copper or molybdenum.
Alternatively, the positive electrode layer 17 and the negative electrode layer 16 are both coated on the organic insulating planarization layer 44, the positive electrode layer 17 is connected to the drain, and one end of the positive electrode layer 17 is electrically connected to the display chip 30 and the other end extends out for driving the liquid crystal assembly 20.
Referring to fig. 1 and 2, the back plate 13 may be made of metal oxide semiconductor or monocrystalline silicon.
Optionally, the display panel further comprises a backlight structure.
The above are merely alternative embodiments of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.
Claims (10)
1. A display structure, comprising: the liquid crystal display panel comprises a back plate, a packaging plate arranged opposite to the back plate, a first polaroid connected with the back plate, a second polaroid, a liquid crystal assembly and a display chip, wherein the polarization direction of the second polaroid is orthogonal to the polarization direction of the first polaroid and is connected with the packaging plate; the liquid crystal assembly has a first state and a second state, when the liquid crystal assembly is in the first state, the display chip is lightened, and the liquid crystal assembly limits light rays incident to the first polarizer to be emitted out of the second polarizer; when the liquid crystal assembly is in the second state, the display chip is turned off, and the liquid crystal assembly allows the light rays entering the first polaroid to be emitted out from the second polaroid.
2. The display structure of claim 1, wherein: the liquid crystal assembly comprises a first alignment film connected with the back plate, a second alignment film arranged opposite to the first alignment film and connected with the packaging plate, and a liquid crystal layer positioned between the first alignment film and the second alignment film; when the liquid crystal layer is in the first state, the liquid crystal alignment direction of the liquid crystal layer is vertical to the plate surface of the packaging plate; and when the liquid crystal layer is in the second state, the liquid crystal alignment direction of the liquid crystal layer is parallel to the plate surface of the packaging plate.
3. The display structure of claim 2, wherein: the liquid crystal layer is a twisted nematic liquid crystal layer.
4. The display structure of claim 2, wherein: the liquid crystal layer is a parallel alignment nematic liquid crystal layer, and a liquid crystal azimuth angle of the liquid crystal layer and the polarization direction of the first polarizer form a preset included angle.
5. The display structure of claim 4, wherein: the value of the included angle is 45 degrees.
6. The display structure according to any one of claims 2 to 4, wherein: when the liquid crystal assembly is in the second state, the voltage of the first alignment film is larger than that of the second alignment film, and the difference value between the voltage of the first alignment film and the voltage of the second alignment film is a preset value.
7. The display structure according to any one of claims 2 to 4, wherein: the display structure further comprises a positive electrode layer and a negative electrode layer coated on the back plate, two electrodes of the display chip are respectively and electrically connected with the positive electrode layer and the negative electrode layer, the first alignment film is electrically connected with the positive electrode layer, and the display structure further comprises an electrode film layer coated on the packaging plate and electrically connected with the second alignment film.
8. The display structure according to any one of claims 1 to 4, wherein: the first polarizer covers the display area and the non-display area.
9. The display structure according to any one of claims 1 to 4, wherein: the display structure further comprises a rubber frame, and the rubber frame is arranged along the circumferential direction of the back plate or the packaging plate and is connected with the back plate and the packaging plate in a sealing mode.
10. A display panel comprising the display structure of any one of claims 1 to 9, the display panel further comprising a driving circuit layer connected to the backplane and configured to drive the display chip and the liquid crystal assembly, the driving circuit layer comprising a buffer layer, a gate insulating layer, an interlayer insulating layer, and an organic insulating planarization layer sequentially disposed on the backplane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123231280.1U CN216562344U (en) | 2021-12-20 | 2021-12-20 | Display structure and display panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123231280.1U CN216562344U (en) | 2021-12-20 | 2021-12-20 | Display structure and display panel |
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| CN216562344U true CN216562344U (en) | 2022-05-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115424538A (en) * | 2022-09-09 | 2022-12-02 | 惠科股份有限公司 | Display device and method for manufacturing the same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115424538A (en) * | 2022-09-09 | 2022-12-02 | 惠科股份有限公司 | Display device and method for manufacturing the same |
| CN115424538B (en) * | 2022-09-09 | 2024-04-09 | 惠科股份有限公司 | Display device and method for manufacturing the same |
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