CN114265224A - UPC display panel based on LCD - Google Patents
UPC display panel based on LCD Download PDFInfo
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- CN114265224A CN114265224A CN202111574666.4A CN202111574666A CN114265224A CN 114265224 A CN114265224 A CN 114265224A CN 202111574666 A CN202111574666 A CN 202111574666A CN 114265224 A CN114265224 A CN 114265224A
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- light
- guide plate
- light guide
- liquid crystal
- lcd
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention discloses a UPC display panel based on an LCD, which comprises a liquid crystal display screen, wherein a light guide plate is arranged below the liquid crystal display screen, a camera module is arranged below the light guide plate, a small hole is formed in the position, corresponding to the camera module, of the light guide plate, a light transmitting mirror is fixedly installed on the inner wall of the small hole through optical cement, the refractive index of the light transmitting mirror is larger than that of the optical cement, and the refractive index of the optical cement is larger than that of the light guide plate; according to the invention, the special-shaped light-transmitting mirror with the mesh points is embedded below the light guide plate, and the light-emitting surface of the light-transmitting mirror is set to be the concave surface, so that light of the light guide plate is better diffused to the liquid crystal screen, an obvious bright-dark boundary area of the screen is avoided, the light transmittance of the light-transmitting mirror is improved, and the camera module can more easily receive external light.
Description
Technical Field
The invention relates to the technical field of display equipment, in particular to a UPC display panel based on an LCD.
Background
At present, a mobile phone screen is developing towards a comprehensive screen, a television is also developing towards a narrow-frame intellectualization, no matter the mobile phone or the intelligent television is a mobile phone or an intelligent television, a Camera is indispensable, but the television with the narrow frame is a television, the Camera cannot be hidden on the frame of the television, the technology needs to be applied to a UPC (ultra Peer Camera, Under-screen Camera) technology, the current Under-screen Camera technology is only applied to an OLED (organic light emitting diode) panel of the mobile phone, the television with the LCD screen and the mobile phone do not have products of the Under-screen Camera temporarily, the price of the OLED screen is far higher than that of the LCD screen, the existing OLED panel reduces the pixel density of a Camera area, simultaneously reduces the pixel size, and changes the pixel arrangement of the area to enable partial light to penetrate through the panel to irradiate on the Camera module, and the light receiving effect of the Camera module is poor.
Disclosure of Invention
The present invention is directed to a UPC display panel based on LCD to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a UPC display panel based on an LCD comprises an outer frame, wherein the top of the inner wall of the outer frame is fixedly connected with a liquid crystal display screen, a light guide plate is arranged below the liquid crystal display screen, a camera module is arranged below the light guide plate, a small hole is formed in the position, corresponding to the camera module, of the light guide plate, a light transmitting mirror is fixedly installed on the inner wall of the small hole through optical cement, the refractive index of the light transmitting mirror is larger than that of the optical cement, and the refractive index of the optical cement is larger than that of the light guide plate;
the backlight surface of the light-transmitting mirror and the backlight surface of the light guide plate are both provided with mesh points, the mesh point density on the light-transmitting mirror is smaller than the mesh point density of the light guide plate, the mesh point depth on the light-transmitting mirror is shallower than the mesh point depth on the light guide plate, and the light-emitting surface of the light-transmitting mirror is a concave surface.
As a further scheme of the invention: the liquid crystal display screen comprises an upper glass substrate, an upper optical filter, an upper alignment film, a liquid crystal layer, a lower alignment film, a lower optical filter and a lower glass substrate which are arranged in sequence from top to bottom; a diaphragm is arranged between the liquid crystal display screen and the light guide plate, and the light-transmitting mirror penetrates through the diaphragm and the light guide plate; a condenser lens is also arranged between the light-transmitting lens and the camera module;
an upward pit is arranged on the position of the lower glass substrate corresponding to the light-transmitting mirror; a round hole is formed in the position, corresponding to the pit, of the lower optical filter, the top of the pit penetrates through the lower optical filter through the round hole, and the position, corresponding to the pit, of the lower alignment film is raised upwards, so that the thickness of the liquid crystal layer at the corresponding position is reduced;
the liquid crystal layer is cholesteric liquid crystal and is arranged in a layered mode, and the number of layers of the cholesteric liquid crystal is correspondingly reduced in an area with a thin liquid crystal layer.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the special-shaped light-transmitting mirror with the mesh points is embedded below the light guide plate, and the light-emitting surface of the light-transmitting mirror is set to be the concave surface, so that light of the light guide plate is better diffused to the liquid crystal screen, an obvious bright-dark boundary area of the screen is avoided, meanwhile, the light transmittance of the light-transmitting mirror is improved, and the camera module can more easily receive external light; meanwhile, the pits are formed in the lower glass substrate, the round holes are formed in the positions, corresponding to the pits, in the liquid crystal screen, the thickness of the liquid crystal layer at the positions is smaller than that of liquid crystals in other areas, the transmittance of the liquid crystal screen can be improved, and light can penetrate through the liquid crystal screen more easily to irradiate the camera module.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
fig. 2 is a cross-sectional view of the liquid crystal display panel of the present invention.
In the figure: 1. a light guide plate; 2. an outer frame; 3. a camera module; 4. a light-transmitting mirror; 5. an upper glass substrate; 6. an upper optical filter; 7. an upper alignment film; 8. a liquid crystal layer; 9. a lower alignment film; 10. a lower optical filter; 11. a lower glass substrate; 12. a membrane; 13. a condenser lens; 14. a pit; 15. and (3) optical cement.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, an LCD-based UPC display panel includes an outer frame 2, a liquid crystal display is fixedly connected to a top of an inner wall of the outer frame 2, a light guide plate 1 is disposed below the liquid crystal display, a camera module 3 is disposed below the light guide plate 1, a small hole is disposed on the light guide plate 1 at a position corresponding to the camera module 3, and a transparent mirror 4 is fixedly mounted on an inner wall of the small hole through an optical adhesive 15;
in order to reduce the loss of light in the light-transmitting mirror 4 and achieve the maximum utilization rate of light effect, the refractive index of the light-transmitting mirror 4 is greater than the refractive index of the optical adhesive 15, and the refractive index of the optical adhesive 15 is greater than the refractive index of the light guide plate 1;
the backlight surface of the light-transmitting mirror 4 and the backlight surface of the light guide plate 1 are both provided with dots, the density of the dots on the light-transmitting mirror 4 is smaller than that of the dots on the light guide plate 1, the depth of the dots on the light-transmitting mirror 4 is shallower than that of the dots on the light guide plate 1, and the dots on the backlight surface of the light-transmitting mirror 4 are shallow and sparse, so that the light transmittance of the light-transmitting mirror 4 is improved, and the camera module 3 can more easily receive external light;
the light-emitting surface of the light-transmitting mirror 4 is a concave surface, so that light of the light guide plate 1 is better diffused to the liquid crystal screen, and an obvious bright-dark boundary area of the screen is avoided;
referring to fig. 2, the lcd panel includes an upper glass substrate 5, an upper optical filter 6, an upper alignment film 7, a liquid crystal layer 8, a lower alignment film 9, a lower optical filter 10, and a lower glass substrate 11 sequentially disposed from top to bottom; a diaphragm 12 is arranged between the liquid crystal display screen and the light guide plate 1, and the light-transmitting mirror 4 penetrates through the diaphragm 12 and the light guide plate 1;
a condenser 13 is arranged between the light-transmitting lens 4 and the camera module 3; external light is better collected on the camera module 3 through the condenser lens 13, so that the light receiving effect of the camera module 3 is improved;
an upward pit 14 is arranged on the lower glass substrate 11 corresponding to the position of the light-transmitting mirror 4; a round hole is formed in the position, corresponding to the pit 14, of the lower optical filter 10, the top of the pit 14 penetrates through the lower optical filter 10 through the round hole, and the position, corresponding to the pit 14, of the lower alignment film 9 is raised upwards, so that the thickness of the liquid crystal layer 8 at the corresponding position is reduced;
the light-emitting surface of the light-transmitting mirror 4 and the surface of the pit 14 of the lower glass substrate 11 are both smooth surfaces without obvious edges and corners, so that the light is prevented from being focused on a certain point, and bright spots appear on the picture. The light-transmissive mirror 4 may be a single lens, a combination of lenses, or a liquid lens.
The liquid crystal layer 8 is cholesteric liquid crystal and is arranged in a layered mode, the number of layers of the cholesteric liquid crystal is correspondingly reduced in an area where the liquid crystal layer 8 is thin, the liquid crystal thickness is reduced, the transmittance of the liquid crystal screen can be improved, and light can penetrate through the liquid crystal screen more easily to irradiate the camera module 3.
Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalents and alternatives falling within the spirit and scope of the invention.
Claims (6)
1. The utility model provides a UPC display panel based on LCD, includes liquid crystal display, liquid crystal display's below is provided with light guide plate (1), light guide plate (1) below is provided with camera module (3), its characterized in that, the aperture has been seted up to the position that corresponds camera module (3) on light guide plate (1), the inner wall of aperture has printing opacity mirror (4) through optical cement (15) fixed mounting, printing opacity mirror (4) refracting index is greater than optical cement (15) refracting index, optical cement (15) refracting index is greater than light guide plate (1) refracting index.
2. The UPC display panel based on LCD according to claim 1, wherein the backlight surface of the transparent mirror (4) and the backlight surface of the light guide plate (1) are provided with dots, the density of the dots on the transparent mirror (4) is smaller than that of the dots on the light guide plate (1), the depth of the dots on the transparent mirror (4) is shallower than that of the dots on the light guide plate (1), and the light exit surface of the transparent mirror (4) is concave.
3. The UPC display panel based on LCD of claim 1, wherein the LCD comprises an upper glass substrate (5), an upper optical filter (6), an upper alignment film (7), a liquid crystal layer (8), a lower alignment film (9), a lower optical filter (10) and a lower glass substrate (11) arranged in sequence from top to bottom.
4. An LCD-based UPC display panel according to claim 1, characterized in that a membrane (12) is arranged between the LCD and the light guide plate (1), and the light-transmissive mirror (4) penetrates the membrane (12) and the light guide plate (1); and a condenser (13) is also arranged between the light-transmitting lens (4) and the camera module (3).
5. An LCD-based UPC display panel according to claim 3, characterized in that the lower glass substrate (11) is provided with an upwardly facing depression (14) at a location corresponding to the light-transmissive mirror (4); the position of the lower optical filter (10) corresponding to the pit (14) is provided with a round hole, the top of the pit (14) penetrates through the lower optical filter (10) through the round hole, and the position of the lower alignment film (9) corresponding to the pit (14) is upwards raised, so that the thickness of the liquid crystal layer (8) at the corresponding position is reduced.
6. An LCD-based UPC display panel according to claim 5, characterized in that the liquid crystal layer (8) is cholesteric liquid crystal and is arranged in layers, the number of layers of cholesteric liquid crystal being correspondingly reduced in the areas where the liquid crystal layer (8) is thinner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111574666.4A CN114265224B (en) | 2021-12-21 | 2021-12-21 | UPC display panel based on LCD |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111574666.4A CN114265224B (en) | 2021-12-21 | 2021-12-21 | UPC display panel based on LCD |
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| CN114265224A true CN114265224A (en) | 2022-04-01 |
| CN114265224B CN114265224B (en) | 2023-04-18 |
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| CN202111574666.4A Active CN114265224B (en) | 2021-12-21 | 2021-12-21 | UPC display panel based on LCD |
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Citations (9)
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| CN107884869A (en) * | 2017-11-28 | 2018-04-06 | 合肥泰沃达智能装备有限公司 | A kind of backlight module of light leakage light guide plate |
| CN108196388A (en) * | 2018-02-12 | 2018-06-22 | 京东方科技集团股份有限公司 | A kind of display device and its manufacturing method |
| CN109031510A (en) * | 2018-08-24 | 2018-12-18 | 京东方科技集团股份有限公司 | A kind of light guide plate and preparation method thereof, backlight module and display device |
| CN209590474U (en) * | 2019-03-27 | 2019-11-05 | 深圳市隆利科技股份有限公司 | A kind of liquid crystal display device and terminal device of high screen accounting |
| US20200064681A1 (en) * | 2018-08-27 | 2020-02-27 | Lg Display Co., Ltd. | Display device |
| CN211294502U (en) * | 2020-01-06 | 2020-08-18 | 深圳市德仓科技有限公司 | Terminal display module |
| CN112485947A (en) * | 2020-12-09 | 2021-03-12 | 武汉天马微电子有限公司 | Display module and display device |
| CN112889105A (en) * | 2018-07-28 | 2021-06-01 | 华为技术有限公司 | Light filling module, display screen, display device and terminal |
| CN113628530A (en) * | 2020-05-07 | 2021-11-09 | 群创光电股份有限公司 | Display device and mobile device |
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2021
- 2021-12-21 CN CN202111574666.4A patent/CN114265224B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884869A (en) * | 2017-11-28 | 2018-04-06 | 合肥泰沃达智能装备有限公司 | A kind of backlight module of light leakage light guide plate |
| CN108196388A (en) * | 2018-02-12 | 2018-06-22 | 京东方科技集团股份有限公司 | A kind of display device and its manufacturing method |
| CN112889105A (en) * | 2018-07-28 | 2021-06-01 | 华为技术有限公司 | Light filling module, display screen, display device and terminal |
| CN109031510A (en) * | 2018-08-24 | 2018-12-18 | 京东方科技集团股份有限公司 | A kind of light guide plate and preparation method thereof, backlight module and display device |
| US20200064681A1 (en) * | 2018-08-27 | 2020-02-27 | Lg Display Co., Ltd. | Display device |
| CN209590474U (en) * | 2019-03-27 | 2019-11-05 | 深圳市隆利科技股份有限公司 | A kind of liquid crystal display device and terminal device of high screen accounting |
| CN211294502U (en) * | 2020-01-06 | 2020-08-18 | 深圳市德仓科技有限公司 | Terminal display module |
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| CN112485947A (en) * | 2020-12-09 | 2021-03-12 | 武汉天马微电子有限公司 | Display module and display device |
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| CN114265224B (en) | 2023-04-18 |
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