High-brightness display screen

Abstract

The utility model provides a high-brightness display screen. The high-brightness display screen is characterized in that an integrated control unit is arranged on a circuit board; the integrated control unit is electrically connected to the driving module, the power supply module and the EEPROM unit; the power supply module and the integrated control unit are electrically connected to the screen line interface; the driving module is electrically connected to the TFT-LCD display screen of the RGBW pixel structure; the TFT-LCD display screen is provided with a light source with the brightness ranging from 1200: 1 to 10000: 1. The light source comprises a reflecting plate, a light guide plate, a prism plate and a diffusion plate which are sequentially attached upwards from the bottom, and two sets of lamp tubes are arranged on the two opposite sides of the attached plate. By adopting the LED backlight technology, especially a white light LED, higher brightness and better color performance can be provided. The LED backlight is brighter, the service life is longer, the power consumption is less, and the heating is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen technical field, especially a kind of high-brightness display screen. BACKGROUND

[0002] LCD display has many liquid crystal particles, they are regularly arranged into certain shape, and the color of each face is different, divided into red, green and blue. The three primary colors can restore into any other color. When display receives display data, it will control each liquid crystal particle to rotate to different color face, thereby combining into different color and image.

[0003] The brightness of the current display screen is not enough, which leads to the content displayed by the display screen being difficult to be distinguished and recognized when it is used outdoors due to strong ambient light. Therefore, the present application proposes an automatic feeding device to at least partially solve the problems that may exist in the prior art. UTILITY MODEL CONTENT

[0004] In view of the above problems, the utility model provides a high-brightness display screen which overcomes the above problems or at least partially solves the above problems.

[0005] To solve the above problems, the utility model discloses a high-brightness display screen, which comprises a circuit board.

[0006] An integrated control unit is arranged on the circuit board; the integrated control unit is electrically connected to a driving module, a power module and an EEPROM unit.

[0007] The power module and the integrated control unit are electrically connected to a screen line interface.

[0008] The driving module is electrically connected to a TFT-LCD display screen of RGBW pixel structure.

[0009] The TFT-LCD display screen is provided with a light source with a brightness of 1200:1~10000:1 brightness; the light source comprises a reflection plate, a light guide plate, a prism plate and a diffusion plate which are sequentially attached from the bottom to the top, and two groups of lamp tubes are arranged on the opposite sides of the attached plate.

[0010] Optionally, the TFT-LCD display screen comprises:

[0011] A display electrode and a TFT transistor, a common electrode are arranged between the two glass substrates.

[0012] A double-layer alignment film is arranged between the display electrode and the common electrode.

[0013] Liquid crystal molecules are arranged between the alignment films.

[0014] The color filter is arranged between the common electrode and the glass substrate.

[0015] The polarizing plate is arranged on the outer layer of the glass substrate.

[0016] The TFT transistor is electrically connected to the row driving line of the driving module at the gate, electrically connected to the column driving line of the driving module at the source, and electrically connected to the display electrode at the drain.

[0017] Optionally, the edge of the liquid crystal molecule layer is also provided with a gasket.

[0018] The gasket separates the edge of the liquid crystal molecule from the TFT transistor.

[0019] Optionally, the color filter is arranged at the edge of the same layer and is provided with an outwardly extending black matrix layer opposite to the gasket.

[0020] The edge position between the lower glass substrate and the upper alignment film is provided with a frame glue.

[0021] Optionally, the display electrode and the lower glass substrate are also provided with a storage capacitor.

[0022] Optionally, a heat dissipation compartment is arranged on the shell at the back of the display screen.

[0023] The heat dissipation compartment is provided with a heat dissipation hole, at least one heat dissipation fan is arranged in the heat dissipation hole, and the heat dissipation fan is electrically connected to the power module of the circuit board.

[0024] The utility model discloses the following advantages:

[0025] Through the circuit board, the integrated control unit is arranged on the circuit board, the integrated control unit is electrically connected to the driving module, the power module and the EEPROM unit, the power module and the integrated control unit are electrically connected to the screen line interface, the driving module is electrically connected to the TFT-LCD display screen of RGBW pixel structure, the TFT-LCD display screen is provided with the light source with the brightness of 1200:1~10000:1 brightness, the light source includes the reflection plate, the light guide plate, the prism plate and the diffusion plate that are sequentially attached from the bottom upwards, and two groups of lamp tubes are arranged on the opposite sides of the attached plate piece. Adopting LED backlight technology, especially white light LED, can provide higher brightness and better color performance. LED backlight is not only brighter, but also has longer service life, less power consumption and lower heat generation. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a kind of high-brightness display screen's circuit structure schematic diagram provided in the utility model one embodiment;

[0027] Figure 2is a cross section line structure schematic view of a high brightness display screen provided by one embodiment of the utility model,

[0028] Figure 3 is a back structure schematic view of a high brightness display screen provided by one embodiment of the utility model,

[0029] Figure 4 is a fan structure schematic view of a high brightness display screen provided by one embodiment of the utility model. DETAILED DESCRIPTION

[0030] In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, the utility model is further explained in detail below by combining with the drawings and specific embodiments.

[0031] Referring to Figures 1 to 4 The utility model discloses one embodiment discloses a kind of high brightness display screen, specifically can include: circuit board;The integrated control unit 1 is provided on the circuit board;The integrated control unit 1 is electrically connected to drive module 2, power module 4 and EEPROM unit 5;The power module 4 and integrated control unit 1 are electrically connected to screen line interface 6;The drive module 2 is electrically connected to the TFT-LCD display screen 3 of RGBW pixel structure;The TFT-LCD display screen 3 is equipped with the light source of 1200:1~10000:1 brightness of brightness;The light source includes the reflection plate 402, light guide plate 403, prism plate 404 and diffusion plate 405 that are sequentially attached from bottom to upwards, two groups of lamp tubes 401 are equipped in the opposite side of laminating plate piece.

[0032] In this application, by RGBW four-color pixel structure, on the basis of traditional RGB three primary colors, a white sub-pixel (W) is added, which significantly improves the overall brightness. The white sub-pixel can directly reflect the ambient light, reducing the dependence on backlight, especially in strong light environment, RGBW structure increases luminous flux, making the brightness of display content surpass the interference of ambient light. For example, 2 W sub-pixels can be introduced in the RGBW sensor, the photosensitive capacity is increased by 60%, and the noise is reduced by 35%. Combined with the above light source structure, a four-layer structure of reflective plate 402 + light guide plate 403 + prism plate 404 + diffusion plate 405 is adopted, and double lamp tubes 401 are arranged on both sides: the bottom light is guided upward through the reflection of the mirror plate 404, reducing the loss of light energy; the above light guide plate 403 converts point light source into area light source, ensuring uniform distribution of light; the above prism plate 404 refracts and focuses light through micro-prism structure, improving the directionality and intensity of light, for example, the high-brightness backlight module of Desay Westone enhances the collimation of light by double-prism light guide film design, with a brightness gain of 40%; the above diffusion plate 405 eliminates light spots through scattering effect, improves picture uniformity, such as TCL's commercial display screen, which improves brightness uniformity by 10% through diffusion plate technology. Through the combination of the optical structure of the backlight module and the RGBW pixel, by optimizing the arrangement of liquid crystal molecules and the brightness of the backlight, the reflection phenomenon is reduced, and the visibility in strong light environment is improved; it has high contrast, which can reach a contrast ratio of 1200:1~10000:1, which can enhance the distinction between black and white, reduce the interference of ambient light on display content, and is suitable for outdoor strong light environment, which is consistent with the technical path of the patent.

[0033] Through the RGBW pixel structure, the white sub-pixel directly increases the light output, and the double lamp tube design significantly improves the brightness of the backlight; the four-layer optical structure (reflective plate 402, light guide plate 403, prism plate 404, diffusion plate 405) works together to reduce light scattering and improve contrast; through the combination of the polarizing plate 308 and the color filter 309, the reflection of ambient light is reduced, and the visibility of the display content is enhanced. The high-brightness display screen can be applied to (1) outdoor information display: high-brightness LCD display screen performs well in outdoor environment, and can still maintain good display effect in strong sunlight, ensuring clear and visible information. This makes it widely used in outdoor billboards, public information display, traffic signs, etc. (2) advertisement delivery and emergency notification: high-brightness display screen can ensure unlimited information transmission in various outdoor environments, suitable for advertisement delivery, traffic indication, emergency notification, etc., providing strong support (3) intelligent management: modern high-brightness display screen often integrates touch, network connection, etc. Functions, such as remote control, real-time monitoring and data transmission, can improve the efficiency of information update and support intelligent management.

[0034] In an embodiment of the present application, the TFT-LCD display screen 3 comprises: two layers of glass substrates 301, between which are provided display electrodes 302 and TFT transistors 310, a common electrode 303; a double-layer alignment film 304 is arranged between the display electrodes 302 and the common electrode 303; liquid crystal molecules 305 are arranged between the alignment film 304; a color filter 309 is arranged between the common electrode 303 and the glass substrate 301; a polarizing plate 308 is arranged on the outer layer of the glass substrate 301; the TFT transistor 310 has a gate electrode electrically connected to a row driving line of the driving module 2, a source electrode electrically connected to a column driving line of the driving module 2, and a drain electrode electrically connected to the display electrode 302.

[0035] The double-layer alignment film 304 controls the arrangement of the liquid crystal molecules 305 through different alignment angles, optimizes the polarization direction of light, and improves the contrast and color accuracy of display. For example, the TN panel realizes fast response through the twisted alignment film 304, and the double-layer alignment film 304 of the application can adopt similar IPS or VA technology to further improve the viewing angle and contrast. The color filter 309 is used to separate RGB three primary colors, and the polarizing plate reduces the reflection of ambient light through orthogonal configuration. For example, the semi-reflective polarizing plate can reflect part of the ambient light to improve outdoor visibility.

[0036] In an embodiment of the present application, the edge of the same layer of the liquid crystal molecules 305 is further provided with a gasket 312; the gasket 312 separates the edge of the liquid crystal molecules 305 from the TFT transistor 310. As shown in Figure 2 The gasket 312 separates the edge of the liquid crystal molecules from the TFT transistor 310, avoids abnormal arrangement of the liquid crystal molecules caused by electric field interference, thereby reducing display defects (such as dark spots and bright spots) and improving display stability.

[0037] In an embodiment of the present application, the edge of the same layer of the color filter 309 is provided with an outwardly extending black matrix layer 307 opposite to the gasket 312; a frame glue 313 is arranged at the edge position between the lower glass substrate 301 and the upper alignment film 304. The black matrix layer 307 arranged at the edge of the color filter 309 effectively absorbs light leakage, reduces crosstalk between adjacent pixels, further improves contrast, and effectively solves the problem of light leakage at the edge of the screen. For example, the small-pitch LED display screen reduces the dark corner through the point-by-point correction technology. The frame glue 313 is used to seal the liquid crystal layer, prevent liquid crystal leakage, and enhance the mechanical strength of the screen.

[0038] Further, the display electrode 302 and the lower layer of the glass substrate 301 are also provided with a storage capacitor 311. The storage capacitor 311 is connected in parallel between the display electrode 302 and the glass substrate 301, used to maintain the pixel voltage, reduce the brightness fluctuation caused by signal delay or interference, and improve the display quality. A heat dissipation compartment 101 is provided on the shell at the back of the display screen; the heat dissipation compartment 101 is provided with a heat dissipation hole 102, at least one heat dissipation fan 103 is arranged in the heat dissipation hole 102, and the heat dissipation fan 103 is electrically connected to the power module 4 of the circuit board. Because the high-brightness display screen will generate a large amount of heat during work, the heat dissipation compartment 101 accelerates air convection through physical structures such as heat dissipation holes and fans, reduces temperature, and prevents backlight attenuation or aging of liquid crystal materials caused by overheating.

[0039] In this application, RGBW pixel structure and four-layer optical backlight module can realize a contrast ratio of more than 1200:1, combined with high-brightness light source (such as two groups of LED lamp tubes), it can still clearly display the content under direct sunlight. For example, P10 LED display screen meets the needs of outdoor strong light environment through high-brightness (500-2000 cd / m²) and high-contrast design. In the vehicle environment, sunlight and complex light conditions put high requirements on display. RGBW structure and prism plate design can improve brightness and contrast ratio, and the heat dissipation design ensures the stability in high temperature environment. For example, the high-brightness backlight module of Desay SVI enhances the light collimation through double-prism light guide film, which is suitable for vehicle scene. The gasket 312, black matrix 307 and storage capacitor 311 can improve the display stability and reliability, and are suitable for the control panel of industrial equipment, ensuring long-term stable operation in harsh environment. The heat dissipation structure combined with high-brightness light source can be applied to outdoor large information screen (such as transportation hub, stadium), ensuring the heat dissipation efficiency under high brightness and prolonging the service life. The use of LED backlight technology, especially white light LED, can provide higher brightness and better color performance. LED backlight is not only brighter, but also has longer service life, lower power consumption and lower heat generation. By optimizing the arrangement of liquid crystal molecules and the brightness of backlight, the reflection phenomenon is reduced, and the visibility in strong light environment is improved.

[0040] The application has the following advantages: the high-brightness LCD display screen adopts advanced backlight technology and optical design, can ensure clear picture and bright color under the noon sun, and significantly improves the readability of outdoor information display. The backlight source of the high-brightness LCD display screen has a longer service life, up to 60-100 thousand hours, while the backlight source of the ordinary liquid crystal screen has a service life of only 10-30 thousand hours. This means that the high-brightness display screen has better consistency in brightness, contrast and chroma and longer service life after long-term use. The contrast of the high-brightness display screen is as high as 1200:1 or even 10000:1, much higher than that of ordinary display screens, providing richer colors and clearer picture quality. The high-brightness LCD display screen can be used continuously for 7x24 hours, has higher reliability, and is suitable for scenes that are used continuously day and night. The high-brightness display screen is not only suitable for outdoor billboards, public information display and traffic signs, but also can be used in outdoor stages, sports venues, commercial centers and other places, enhancing the attractiveness and interactivity of outdoor places.

[0041] Finally, it should also be noted that in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0042] The high-brightness display screen provided by the utility model is described in detail above, and the principles and implementation modes of the utility model are described by applying specific examples in this document. The description of the above examples is only used to help understand the method and core idea of the utility model; at the same time, for general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model, and the above description should not be understood as a limitation of the utility model.

Claims

1. A high-brightness display screen, characterized in that, Include: Circuit board; The circuit board is provided with an integrated control unit (1); the integrated control unit (1) is electrically connected to the drive module (2), the power module (4) and the EEPROM unit (5); The power module (4) and the integrated control unit (1) are electrically connected to the screen line interface (6); The drive module (2) is electrically connected to the TFT-LCD display screen (3) of RGBW pixel structure; The TFT-LCD display screen (3) is provided with a light source with a brightness of 1200:1~10000:1 brightness; the light source includes a reflection plate (402), a light guide plate (403), a prism plate (404) and a diffusion plate (405) which are sequentially attached from the bottom to the top, and two groups of lamp tubes (401) are arranged on the opposite sides of the attached plate.

2. The high-brightness display screen of claim 1, wherein, The TFT-LCD display screen (3) comprises: Two layers of glass substrates (301) are provided with display electrodes (302) and TFT transistors (310), common electrodes (303); The display electrodes (302) and the common electrodes (303) are provided with double-layer alignment films (304); The alignment films (304) are provided with liquid crystal molecules (305); The common electrodes (303) and the glass substrates (301) are provided with color filters (309); The outer layer of the glass substrate (301) is provided with a polarizing plate (308); The TFT transistor (310) has a gate electrode electrically connected to the row drive line of the drive module (2), a source electrode electrically connected to the column drive line of the drive module (2), and a drain electrode electrically connected to the display electrode (302).

3. The high-brightness display screen of claim 2, wherein, The edge of the same layer of the liquid crystal molecule (305) is also provided with a gasket (312); The gasket (312) separates the edge of the liquid crystal molecule (305) from the TFT transistor (310).

4. The high-brightness display screen of claim 3, wherein, The same layer edge of the color filter (309) and the opposite position of the gasket (312) are provided with an outwardly extending black matrix layer (307); The edge position between the lower glass substrate (301) and the upper alignment film (304) is provided with a frame glue (313).

5. The high-brightness display screen of claim 2, wherein, The display electrode (302) and the lower glass substrate (301) are also provided with a storage capacitor (311).

6. The high intensity display screen of claim 1, wherein, A heat dissipation compartment (101) is arranged on the back of the shell of the display screen; The heat dissipation compartment (101) is provided with a heat dissipation hole (102), at least one heat dissipation fan (103) is arranged in the heat dissipation hole (102), and the heat dissipation fan (103) is electrically connected to the power module (4) of the circuit board.

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