Display device and vehicle

Abstract

The present disclosure belongs to the field of display technology, and specifically relates to a display device and a vehicle, which includes a light board, an electrochromic dimming board, and a control chip. The light board includes a substrate and a light source. The electrochromic dimming board is on the side of the substrate away from the light source. The electrochromic dimming board includes a light-input side, a light-output side, and a plurality of independently controlled dimming zones. Each dimming zone includes an electrochromic part and a light-transmitting photosensitive element between the light-input side and the light-output side. The control chip is connected to the light source, the light-transmitting photosensitive element, and the electrochromic part. In the dimming zone, the light-transmitting photosensitive element detects that external light has entered, and the control chip controls the electrochromic part to be in a power-on state and to be light-transmitting; if no external light has entered, the control chip controls the electrochromic part to be in a power-off state and to be non-light-transmitting, and at the same time controls the light source to emit light. This solution controls the power on and off of the electrochromic part and the light-emitting source through the cooperation of the light-transmitting photosensitive element and the control chip, so that the display image is not affected by changes in ambient light.

Description

Technical Field

[0001] The present disclosure belongs to the field of display technology, and particularly relates to a display device and a vehicle. Background Art

[0002] With the development of new energy vehicles, cars are moving more towards intelligent multi-screen directions. However, due to current technical limitations, the sunroof display screen cannot automatically adjust the display parameters as the external light changes, resulting in poor display effects and lack of intelligence. Summary of the Invention

[0003] The purpose of the present disclosure is to provide a display device and a vehicle, which solves the problem that the display parameters of the vehicle display screen cannot be adjusted when the external light is different, improves the display effect of the display screen, and reduces the energy consumption of the display device.

[0004] The present disclosure provides a display device, comprising at least a light board, the light board comprising a substrate and a plurality of independently controlled light sources, the substrate having a plurality of mounting areas and light-transmitting areas located between adjacent mounting areas, each light source being located in a corresponding mounting area, the display device further comprising:

[0005] An electrochromic dimming plate is formed on a side of the substrate away from the light source, the side of the electrochromic dimming plate away from the substrate being a light-inlet side for allowing external light to enter, and the side closer to the substrate being a light-exit side for allowing the external light to exit, the electrochromic dimming plate comprising a plurality of independently controlled dimming zones, the orthographic projection of each dimming zone on the substrate covering the mounting area and the light-transmitting area, and each dimming zone comprising an electrochromic portion and a light-transmitting photosensitive element stacked between the light-inlet side and the light-exiting side;

[0006] a control chip connected to the light source, the light-transmitting photosensitive element, and the electrochromic portion;

[0007] Among them, in the dimming zone: if the translucent photosensitive element detects that external light has entered, the control chip controls the electrochromic part to be in a power-on state, and the electrochromic part is translucent in the power-on state; if the translucent photosensitive element does not detect that external light has entered, the control chip controls the electrochromic part to be in a power-off state, and the electrochromic part is non-translucent in the power-off state. At the same time, the control chip controls at least part of the light source corresponding to the dimming zone to emit light.

[0008] In one embodiment of the present disclosure, the light-transmitting photosensitive element is provided on a side of the electrochromic portion close to the substrate, wherein:

[0009] The control chip is used to control the electrochromic part of each dimming zone to be in a powered-on state when the display device is initially started.

[0010] In one embodiment of the present disclosure, the light-transmitting photosensitive element is disposed on a side of the electrochromic portion away from the substrate.

[0011] In one embodiment of the present disclosure, the electrochromic portion includes an electrochromic layer and a light-transmitting conductive layer, wherein the light-transmitting conductive layer is located on a side of the electrochromic layer close to the substrate and is connected to the control chip;

[0012] The control chip is located on the substrate and the peripheral side walls of the light-transmitting conductive layer.

[0013] In one embodiment of the present disclosure, the light board also includes a single-sided light-transmitting layer, which is formed on the side of the substrate away from the electroluminescent dimming panel and is located in the light-transmitting area. The surface of the single-sided light-transmitting layer close to the substrate is the light-incoming surface, and the surface away from the substrate is the light-emitting surface.

[0014] In one embodiment of the present disclosure, the display device further includes a first color temperature sensor, which is disposed on a side of the substrate away from the light source, and the first color temperature sensor is used to detect the color temperature value of the external light; wherein,

[0015] The control chip is connected to the first color temperature sensor and is used to control the electrochromic part of each dimming zone to be in a power-off state and control each light source to emit light when the ambient color temperature value detected by the first color temperature sensor exceeds the color temperature adjustment range.

[0016] In one embodiment of the present disclosure, the display device further includes:

[0017] a liquid crystal display panel, disposed on a side of the light source away from the substrate;

[0018] a second color temperature sensor, disposed on a side of the liquid crystal display panel away from the light source, for detecting a display color temperature value of the liquid crystal display panel;

[0019] The light source includes a plurality of light-emitting chips, the plurality of light-emitting chips have different colors and are independently controlled. Each of the light-emitting chips and the second color temperature sensor is connected to the control chip. The control chip is configured to control the second color temperature sensor to detect the display color temperature value of the liquid crystal display panel when the ambient color temperature value detected by the first color temperature sensor is within the color temperature adjustment range, and adjust the brightness of the corresponding light-emitting chip in the light source based on the difference between the display color temperature value and the standard color temperature value.

[0020] In one embodiment of the present disclosure, the display device further includes an outer frame, and the outer frame includes:

[0021] A first annular limiting plate is located on a side of the electroluminescent panel away from the liquid crystal display panel and opposite to the edge non-dimming area of the electroluminescent panel;

[0022] a second annular limiting plate, located on a side of the liquid crystal display panel away from the electroluminescent panel and opposite to an edge non-display area of the liquid crystal display panel;

[0023] an annular side connecting plate, arranged around the electroluminescent dimming plate, the light board and the liquid crystal display panel, and connecting the first annular limiting plate and the second annular limiting plate;

[0024] The first color temperature sensor is embedded in the first annular limiting plate, and the second color temperature sensor is arranged on the inner annular surface of the second annular limiting plate.

[0025] In one embodiment of the present disclosure, the light source further includes a light-transmitting portion, which is provided on a side of the plurality of light-emitting chips away from the substrate, and the side of the light-transmitting portion away from the light-emitting chips in a cross section perpendicular to the plurality of light-emitting chips is arc-shaped; and / or

[0026] An end of the second color temperature sensor away from the second annular limiting plate is a detection end, and the detection end is inclined toward the direction close to the liquid crystal display panel; and / or

[0027] The display device also includes an optical film and an annular rubber limiter located within the annular side connecting plate. The optical film is disposed between the light source and the liquid crystal display panel. The area of the optical film is larger than that of the liquid crystal display panel. The annular rubber limiter is provided with an annular stepped groove. The optical film and the liquid crystal display panel are supported within the annular stepped groove and are fully in contact with the adjacent groove walls.

[0028] The present disclosure provides a vehicle including a vehicle body, wherein the vehicle body is provided with a sunroof, the sunroof including any one of the above-mentioned display devices, and the light panel is arranged closer to the interior of the vehicle body than the electroluminescent panel.

[0029] The disclosed solution has the following beneficial effects:

[0030] The present disclosure achieves automatic adjustment of the display image parameter values of the display device by arranging a light board, an electro-modulation board, and a control chip on the backlight source of the vehicle-mounted display: a light-transmitting photosensitive element is used to detect the external ambient light. When the external ambient light is strong during the day, the light-transmitting photosensitive element detects the external light entering and transmits a signal to the control chip. The control chip is connected to the electrochromic part, thereby controlling the electrochromic part to be energized. At this time, the electrochromic part is in a light-transmitting state. The external ambient light passing through the electrochromic part can supplement the light of the liquid crystal display panel, thereby reducing the power consumption of the display and making the display device more energy-efficient. When the display device is in a dark environment such as being blocked or at night, the translucent photosensitive element does not detect external light, and the signal is transmitted to the control chip. The control chip controls the electrochromic part to cut off the power. At the same time, it controls the light source corresponding to the dimming area without external ambient light to emit light. At this time, the electrochromic part is in a non-translucent state, and external light cannot enter the liquid crystal display panel. The display panel can only be supplemented with light through the light source. The brightness of the liquid crystal display panel after supplementary light is the same as the brightness of sunlight passing through the electrochromic part, ensuring that the display image of the display device is not affected by external ambient light.

[0031] Other features and advantages of the present disclosure will become apparent from the following detailed description, or may be learned in part by practice of the present disclosure.

[0032] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0034] Figure 1 Schematic cross-sectional view of a display device in an embodiment of the present disclosure.

[0035] Figure 2 It is a partial schematic diagram of the display device in an embodiment of the present disclosure.

[0036] Figure 3 This is a partial schematic diagram of the light board in the embodiment of the present disclosure.

[0037] Figure 4 1 is a top view of the electroluminescent panel in the embodiment of the present disclosure.

[0038] Figure 5 Schematic diagram of the circuit equivalent of the light-transmitting photosensitive element in the embodiment of the present disclosure.

[0039] Figure 6 Schematic diagram of the structure of the color temperature sensor in the embodiment of the present disclosure.

[0040] Description of reference numerals:

[0041] 1. Light board;

[0042] 11. substrate; 111. mounting area; 112. light-transmitting area;

[0043] 12. light source; 121. light emitting chip; 122. light-transmitting portion;

[0044] 2. Electroluminescent dimming panel;

[0045] 21. electrochromic portion; 211. electrochromic layer; 212. light-transmitting conductive layer;

[0046] 22. Transparent photosensitive element;

[0047] 23. Dimming zone;

[0048] 3. Control chip;

[0049] 4. Single-sided light-transmitting layer;

[0050] 51. First color temperature sensor; 52. Second color temperature sensor; 521. Detection end;

[0051] 6. Liquid crystal display panel;

[0052] 7. Outer frame; 71. First annular limiting plate; 72. Second annular limiting plate; 73. Annular side connecting plate;

[0053] 8. Optical film; 81. Diffuser; 82. Prism; 83. Quantum dot film;

[0054] 9. Annular rubber limiter; 91. Side rubber. DETAILED DESCRIPTION

[0055] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0056] In addition, the described features, structures or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well-known methods, devices, implementations or operations are not shown or described in detail to avoid blurring various aspects of the present disclosure.

[0057] The present disclosure is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present disclosure described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, features defined as "first," "second," or "third" may explicitly or implicitly include one or more of such features. Throughout the present disclosure, "plurality" means two or more, unless otherwise specifically defined.

[0059] It should be noted that “upper”, “lower”, “left”, “right”, etc. are only used to distinguish for the convenience of description, and do not impose any directional restrictions on the embodiments of the present invention. For example, the “upper” may actually be “lower”, “left”, “right”, etc. In the present disclosure, unless otherwise clearly specified and limited, the terms “assembly”, “connection”, etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0060] An embodiment of the present disclosure provides a display device, including a light board 1 , an electroluminescent dimming board 2 , a control chip 3 and a liquid crystal display panel 6 .

[0061] like Figure 1 and Figure 2 As shown, the light board 1 includes a substrate 11 and multiple independently controlled light sources 12. The liquid crystal display panel 6 is located on the side of the light source 12 away from the substrate 11. It can also be understood that the liquid crystal display panel 6 is located on the light emitting side of the light source 12.

[0062] In the embodiment of the present disclosure, the substrate 11 can be made of glass, but can also be made of other materials, depending on the actual situation; however, the substrate 11 should have a certain light transmittance so that the external ambient light can pass through the substrate 11 to provide supplementary light for the liquid crystal display panel 6. Specifically, the substrate 11 has multiple mounting areas 111 and light-transmitting areas 112 located between adjacent mounting areas 111. Each light source 12 is correspondingly arranged in a mounting area 111, that is: the light source 12 corresponds to the mounting area 111 one by one, and the light-transmitting area 112 is used to allow external ambient light to enter.

[0063] like Figure 3 As shown, the light source 12 may include a light-transmitting portion 122 and a plurality of light-emitting chips 121. In the embodiment of the present disclosure, the light-emitting chips 121 of the light source 12 are directly integrated on the substrate 11 and packaged in a manner connected to the circuit board through external leads, that is, the packaging method of the light source 12 is COG (chip on glass), but other packaging methods may also be used, depending on actual conditions.

[0064] For example, the light source 12 may be a mini light emitting diode (Mini LED for short), which has higher resolution, brightness and contrast, and is thinner and more energy-efficient. While increasing the brightness of the liquid crystal display panel 6, it can also reduce the power consumption of the display device.

[0065] The light-transmitting portion 122 is disposed on a side of the plurality of light-emitting chips 121 away from the substrate 11. For example, the material used may be a light-transmitting resin, an ultraviolet curing (UV) adhesive layer, or other materials with good light transmittance and light mixing properties.

[0066] In this embodiment, the side of the light-transmitting portion 122 perpendicular to the light-emitting chips 121, which is away from the light-emitting chips 121, can be arc-shaped, which facilitates mixing of the light emitted by the light source 12, thereby improving the display effect of the liquid crystal display panel 6. For example, the cross-section of the light-transmitting portion 122 perpendicular to the light-emitting chips 121 can be semicircular.

[0067] In this embodiment, the multiple light-emitting chips 121 in each light source 12 have different colors and are independently controlled. For example, the disclosed embodiment uses three colors of light-emitting chips 121: red, green, and blue. However, the color and number of light-emitting chips 121 are not limited to this. The light-emitting chips 121 can be two, four, or even more colors, or can be other colors besides red, blue, and green, such as white, yellow, etc. The specific color can be determined according to actual conditions. By controlling the voltage, the brightness of the light-emitting chips 121 of different colors can be controlled, thereby controlling the display effect of the display device.

[0068] like Figure 4 and Figure 5 As shown, in the embodiment of the present disclosure, the electroluminescent panel 2 is formed on the side of the substrate 11 away from the light source 12. The side of the electroluminescent panel 2 away from the substrate 11 is the light-incoming side for external ambient light to enter, and the side close to the substrate 11 is the light-emitting side for external ambient light to emit, that is, the external ambient light enters through the light-incoming side of the electroluminescent panel 2, penetrates the entire electroluminescent panel 2, and is emitted from the light-emitting side to provide a light source for the liquid crystal display panel 6.

[0069] In the embodiment of the present disclosure, the electrochromic panel 2 may include a plurality of dimming zones 23 that are independently controlled. Each dimming zone 23 includes an electrochromic portion 21 stacked between the light-input side and the light-output side and a Figure 5 The light-transmitting photosensitive element 22 is shown.

[0070] Furthermore, in order to allow the LCD panel 6 to be in a dark environment at night or when it is blocked by obstacles, the dimming zone 23 in the corresponding area can have a corresponding light source 12 to supplement the LCD panel 6, it is required that the positive projection of each dimming zone 23 on the substrate 11 covers the installation area 111 and the light-transmitting area 112. When the external environment cannot provide the LCD panel 6 with light that meets the display requirements, at least the light source 12 on the installation area 111 can provide light source for the LCD panel 6, so that the LCD panel 6 always maintains a good display effect.

[0071] In the embodiment of the present disclosure, the control chip 3 can be connected to the light source 12 , the transparent photosensitive element 22 and the electrochromic part 21 to receive detection data from the transparent photosensitive element 22 to control the states of the electrochromic part 21 and the light source 12 .

[0072] For example, in the dimming zone 23, when the translucent photosensitive element 22 detects that external light has entered, it can transmit a first electrical signal to the control chip 3. After the control chip 3 processes the first electrical signal, it controls the electrochromic part 21 to be in a power-on state. The electrochromic part 21 is translucent when it is in the power-on state. In this state, external ambient light can pass through the electrochromic part 21 and provide a light source for the liquid crystal display panel 6, which not only ensures the display effect of the display device, but also saves energy consumption of the display device and improves product competitiveness.

[0073] In addition, when the liquid crystal display panel 6 is in a dark environment such as at night or when there are obstacles blocking it, the light-transmitting photosensitive element 22 does not detect that there is any ambient light entering or the ambient light is very weak, and the light-transmitting photosensitive element can transmit a second electrical signal to the control chip 3. The second electrical signal is different from the first electrical signal. After processing the second electrical signal, the control chip 3 controls the electrochromic portion 21 to be in a power-off state. The electrochromic portion 21 is non-transparent in the power-off state, for example, a full white fog. At the same time, the control chip 3 controls the light source 12 in the blocked or dark area corresponding to the dimming zone 23 to emit light, that is, in a dark environment, external light cannot pass through the electrochromic portion 21. The color-changing portion 21 provides a light source for the liquid crystal display panel 6. In order to maintain a good display effect of the liquid crystal display panel 6, the control chip 3 also controls the light source 12 in the area where no external ambient light is incident to emit light. The brightness of the liquid crystal display panel 6 after being supplemented by the light source 12 is consistent with the brightness after the external ambient light provides a light source for the liquid crystal display panel 6 through the dimming area 23. Under the joint action of the translucent photosensitive element 22, the control chip 3, the electrochromic portion 21, and the light source 12, the display brightness of the liquid crystal display panel 6 will be automatically adjusted as the ambient light changes, which not only ensures a good display effect of the display device, but also reduces the power consumption of the display device.

[0074] In addition, the control chip 3 is located on the side walls of the substrate 11 and the transparent conductive layer 212, that is, the control chip 3 and the electrochromic dimming plate 2 have no overlapping projections on the liquid crystal display panel 6, thereby avoiding the control chip 3 from blocking external light when it enters the electrochromic dimming plate 2, thereby ensuring the transmittance of the incident light and simplifying the wiring design between the control chip 3 and the electrochromic part 21 and the transparent photosensitive element 22.

[0075] It should also be noted that there are two positional relationships between the electrochromic portion 21 and the light-transmitting photosensitive element 22:

[0076] The first positional relationship is: the translucent photosensitive element 22 is arranged on the side of the electrochromic part 21 away from the light source 12. The translucent photosensitive element 22 can detect external ambient light. When external ambient light is detected entering, a first electrical signal is transmitted to the control chip 3. After the control chip 3 processes the first electrical signal, it controls the electrochromic part 21 to be in a power-on state. The electrochromic part 21 is translucent in the power-on state. When no external ambient light is detected entering, a second electrical signal is transmitted to the control chip 3. After the control chip 3 processes the second electrical signal, it controls the electrochromic part 21 to be in a power-off state. The electrochromic part 21 is non-translucent in the power-on state, and at the same time, it also controls the light source 12 in the shaded area corresponding to the dimming zone 23 to emit light. Under this positional relationship, the translucent photosensitive element 22 is convenient for real-time detection of external ambient light, and the power-on and power-off settings of the electrochromic part 21 are also relatively simple.

[0077] The second positional relationship is: the translucent photosensitive element 22 is arranged on the side of the electrochromic part 21 close to the light source 12. When the display device is initially started, the control chip 3 controls the electrochromic part 21 of each dimming zone 23 to be in a power-on state. At this time, the electrochromic part 21 is translucent, and the external ambient light passes through the electrochromic part 21 and is incident on the translucent photosensitive element 22. The translucent photosensitive element 22 is able to detect whether there is external ambient light incident. Then the control chip 3 controls the electrochromic part 21 to be powered on or off according to the data detected by the translucent photosensitive element 22. The different translucent states of the electrochromic part 21 when powered on and powered off are the same as the first positional relationship mentioned above, and will not be repeated here.

[0078] However, it should be further explained that in order to enable the transparent photosensitive element 22 to continue to detect the external ambient light after the electrochromic part 21 is in a non-transparent state, after the display device is initially started, the embodiment of the present disclosure will energize the electrochromic part 21 again at the same interval to make it return to the transparent state. At this time, the transparent photosensitive element 22 can detect the external ambient light at intervals and transmit the electrical signal to the control chip 3. The control chip 3 will control the electrochromic part 21 to be powered on or off according to the detection data. By energizing the electrochromic part 21 at intervals, the transparent photosensitive element 22 can realize real-time detection of the external ambient light, and then control the light source 12 not to emit light in a bright environment, and fill in the light for the liquid crystal display panel 6 when the display device is in a dark environment, so that the display effect of the display device can be automatically adjusted according to the external ambient light and save energy. At the same time, the transparent photosensitive element 22 is adjacent to the light source 12 and the control chip 3, which simplifies the circuit setting of the transparent photosensitive element 22.

[0079] The electrochromic portion 21 in the embodiment of the present disclosure includes an electrochromic layer 211 and a light-transmitting conductive layer 212, and the electrochromic layer 211 is located on the side of the light-transmitting conductive layer 212 away from the substrate 11 and is connected to the control chip 3. The electrochromic layer 211 is made of a special glass material. Under the action of different electric fields, the optical properties of the electrochromic layer 211 will change, but the embodiment of the present disclosure is not limited to this material. As long as the material satisfies the requirement that the electrochromic layer 211 can automatically change its optical properties under the action of an electric field, it complies with this application. The light-transmitting conductive layer 212 can be made of ITO (indium tin oxide) material, but is not limited to this. It can also be made of other transparent conductive materials, depending on the specific circumstances.

[0080] For example, the translucent photosensitive element 22 detects the external ambient light. When it is detected that the display device is in a bright ambient light, the control chip 3 controls the electrochromic part 21 to be powered on and to be translucent. At this time, the external ambient light directly provides the light source for the liquid crystal display panel 6; when it is detected that the display device is in a dark ambient light or there is an obstruction blocking the display device, the control chip 3 controls the electrochromic part 21 to be powered off and to be non-translucent. At the same time, it also controls the light source 12 in the shaded area corresponding to the dimming zone 23 to fill light to the liquid crystal display panel 6, which can enable the liquid crystal display panel 6 to automatically adjust the display brightness according to the ambient light and reduce energy consumption.

[0081] It should also be noted that the transparent conductive layer 212 must be conductive and transparent to ensure that the signal of the control chip 3 can be transmitted to the electrochromic layer 211 through the transparent conductive layer 212 and that external ambient light can pass through the transparent conductive layer 212 .

[0082] In the embodiment disclosed herein, the lamp board 1 also includes a single-sided light-transmitting layer 4, which is formed at least on the light-transmitting area 112 of the substrate 11. The surface of the single-sided light-transmitting layer 4 close to the substrate 11 is the light-incoming surface, and the surface away from the substrate 11 is the light-emitting surface. The single-sided light-transmitting layer 4 has single-sided light transmittance, so it only allows external ambient light to enter through the light-incoming surface of the single-sided light-transmitting layer 4 and exit from the light-emitting surface, but the light emitted by the light source 12 cannot be emitted from the single-sided light-transmitting layer 4 toward the electroluminescent dimming panel 2. While effectively preventing the light from the light source 12 from leaking through the substrate 11 toward the light-transmitting photosensitive element 22, it can also ensure that the external ambient light can pass through the substrate 11 to supplement the light for the liquid crystal display panel 6.

[0083] For example, a metal coating can be applied on at least the light-transmitting area 112 of the substrate 11. The metal coating is the single-sided light-transmitting layer 4. The metal coating can be made of coatings made of mercury, silver, aluminum, etc., or other metal coatings. Of course, it can also be other non-metallic materials with single-sided light transmittance.

[0084] Optionally, the single-sided light-transmitting layer 4 can be arranged on the light-transmitting area 112 on the side of the substrate 11 close to the light source 12, that is, the single-sided light-transmitting layer 4 is located between the two light sources 12, and the thickness of the single-sided light-transmitting layer 4 is less than the thickness of the light source 12, which saves the paint of the single-sided light-transmitting layer 4 and can also reduce the thickness of the liquid crystal display panel 6.

[0085] Optionally, the single-sided light-transmitting layer 4 can also be arranged on the side of the substrate 11 away from the light source 12, so as to cover both the light-transmitting area 112 and the installation area 111. At this time, the single-sided light-transmitting layer 4 can be coated as a whole layer without patterning. While effectively preventing the light from the light source 12 from leaking toward the light-transmitting photosensitive element 22, it can also simplify the manufacturing process of the single-sided light-transmitting layer 4.

[0086] The display device provided by the embodiment of the present disclosure further includes a first color temperature sensor 51 and a second color temperature sensor 52. Figure 6 As shown, the first color temperature sensor 51 is arranged on the side of the substrate 11 away from the light source 12, and is used to detect the color temperature value of the external ambient light; the second color temperature sensor 52 is arranged on the side of the liquid crystal display panel 6 away from the light source 12, and is used to detect the display color temperature value of the liquid crystal display panel 6.

[0087] For example, the first color temperature sensor 51 and the second color temperature sensor 52 are both connected to the control chip 3 circuit. When the ambient color temperature value detected by the first color temperature sensor 51 exceeds the preset color temperature adjustment range, the control chip 3 controls the electrochromic part 21 of each dimming zone 23 to be in a power-off state and controls each light source 12 to emit light. At the same time, the second color temperature sensor 52 is controlled to detect the display color temperature value of the liquid crystal display panel 6, and adjusts the brightness of the corresponding light-emitting chip 121 in the light source 12 based on the difference between the display color temperature value and the standard color temperature value, so that the color temperature value of the liquid crystal display panel 6 can automatically perform color temperature correction according to the change of the external ambient color temperature value, thereby improving the display effect of the display device.

[0088] For example, when the ambient light is in a cold color temperature state with a high color temperature, color temperature compensation can be achieved by reducing the brightness of the blue light-emitting chip 121 of the light source 12. When the ambient light is in a warm color temperature state with a low color temperature, the color temperature can be adjusted by reducing the brightness of the yellow light-emitting chip 121 in the light source 12. In addition, when the color temperature value is low, the brightness of the red and blue light-emitting chips 121 can be increased to thereby increase the color temperature, or when the color temperature is high, the brightness of the red and green light-emitting chips 121 can be increased to thereby reduce the color temperature.

[0089] The display device provided in the embodiment of the present disclosure further includes an outer frame 7, which may include a first annular limiting plate 71, a second annular limiting plate 72, and an annular side connecting plate 73. For example, the outer frame 7 of this embodiment may be an alloy member, and the entire outer frame 7 may be an integrated structure to ensure its structural stability.

[0090] Among them, the first annular limit plate 71 is located on the side of the electroluminescent panel 2 away from the liquid crystal display panel 6, and is opposite to the non-dimming area 23 at the edge of the electroluminescent panel 2; the second annular limit plate 72 is located on the side of the liquid crystal display panel 6 away from the electroluminescent panel 2, and is opposite to the non-display area at the edge of the liquid crystal display panel 6; the annular side connecting plate 73 is arranged around the electroluminescent panel 2, the light board 1 and the liquid crystal display panel 6, and connects the first annular limit plate 71 and the second annular limit plate 72.

[0091] It should be noted that the "ring" in the first ring-shaped limiting plate 71, the second ring-shaped limiting plate 72 and the ring-shaped side connecting plate 73 is not a restriction on the shape, but refers to a closed structure with a hollow middle area. The "ring" in this embodiment is not limited to a circle, but can also be an elliptical, rectangular or irregular shape, etc. That is to say, the first ring-shaped limiting plate 71, the second ring-shaped limiting plate 72 and the ring-shaped side connecting plate 73 as a whole can be a circular ring structure, a square ring structure, an elliptical ring structure, or an irregular ring structure, etc., depending on the specific product requirements.

[0092] The first color temperature sensor 51 can be embedded in the first annular limiting plate 71, and the second color temperature sensor 52 can be arranged on the inner ring surface of the second annular limiting plate 72. In order to ensure the overall smoothness of the outer frame, the thickness of the first color temperature sensor 51 can be set to the same thickness as the first annular limiting plate 71, that is: the surface of the first color temperature sensor 51 away from the substrate 11 is flush with the surface of the first annular limiting plate 71 away from the substrate 11, and the surface of the first color temperature sensor 51 close to the substrate 11 is flush with the surface of the first annular limiting plate 71 close to the substrate 11; similarly, the thickness of the second color temperature sensor 52 can also be set to the same thickness as the second annular limiting plate 72.

[0093] In addition, it should be noted that the first annular limiting plate 71 can be opposite to the non-dimming area 23 of the electroluminescent dimming panel 2 to ensure that the dimming area 23 of the electroluminescent dimming panel 2 is not blocked and can be fully used to receive external ambient light. Similarly, the second annular limiting plate 72 and the second color temperature sensor 52 are also only opposite to the non-display area of the liquid crystal display panel 6 to avoid the display area of the liquid crystal display panel 6 from being blocked, thereby maximizing the display range of the liquid crystal display panel 6.

[0094] Furthermore, the end of the second color temperature sensor 52 away from the second annular limit plate 72 is a detection end 521, and this detection end 521 is inclined toward the direction close to the liquid crystal display panel 6 to increase the effective detection range of the detection end 521 on the liquid crystal display panel 6, so that the color temperature value of the liquid crystal display panel 6 detected by the second color temperature sensor 52 is more accurate, and the picture display effect of the liquid crystal display panel 6 after color temperature correction is better.

[0095] In the embodiment of the present disclosure, the display device includes an optical film 8 and an annular rubber limit portion 9 located in the annular side connecting plate 73. The optical film 8 is arranged between the light source 12 and the liquid crystal display panel 6, and is used to adjust the light emitted to the liquid crystal display panel 6 to ensure that the light is evenly emitted to the liquid crystal display panel 6.

[0096] For example, the optical film may include at least one of a diffuser 81 , a prism sheet 82 , and a quantum dot film 83 .

[0097] The annular rubber limiter 9 is located inside the outer frame 7 , and starts from the side of the second annular limiter plate 72 close to the liquid crystal display panel 6 to the side of the control chip 3 close to the substrate 11 , completely filling the entire outer frame 7 , and is bonded to the side of the light board 1 , the optical film 8 , and the liquid crystal display panel 6 .

[0098] It should be noted that the area of the optical film 8 is larger than the area of the liquid crystal display panel 6, and the annular rubber limit portion 9 is provided with an annular step groove. When the optical film 8 and the liquid crystal display panel 6 are placed in the outer frame 7, the outer contour of the optical film 8 exceeds the outer contour range of the liquid crystal display panel 6, and the outer contour range of the optical film 8 gradually increases along the vertical direction from the liquid crystal display panel 6 to the light board 1, and finally presents an inverted step shape. The optical film 8 and the liquid crystal display panel 6 are supported in the annular step groove and are completely in contact with the adjacent groove wall.

[0099] Among them, the "ring" in the annular rubber limiting portion 9 is not limited to a circle, but can also be a rectangle, an ellipse or an irregular shape, etc., that is, the annular rubber limiting portion 9 as a whole can be a circular ring structure, a square ring structure, an elliptical ring structure or an irregular ring structure, etc., which can be adjusted according to the specific requirements of the product.

[0100] In addition, the annular rubber limiting portion 9 is only filled to the side of the control chip 3 close to the substrate 11 , that is, the annular rubber limiting portion 9 does not cover the control chip 3 , in order to ensure that the control chip 3 can fully dissipate heat.

[0101] In addition, the light board 1 can be supported on the outside of the annular rubber limiting portion 9. The annular rubber limiting portion 9 does not overlap with the dimming area 23 of the electroluminescent panel 2 to avoid blocking the light.

[0102] The rubber used in the annular rubber limiter 9 has high temperature resistance and a certain elasticity, which can prevent the optical film 8 and liquid crystal display panel 6 in the display device from being damaged due to a violent collision when the car shakes due to the annular rubber limiter 9 being too hard. Under the joint action of the annular rubber limiter 9 and the integrally formed outer frame 7, the displacement of each component in the outer frame 7 is limited, the stability of the connection between the components is ensured, and the service life of the display device is extended.

[0103] The areas of the diffuser 81, the prism sheet 82, and the quantum dot film 83 are all larger than the area of the liquid crystal display panel, that is, the contours of the diffuser 81, the prism sheet 82, and the quantum dot film 83 all exceed the contour range of the liquid crystal display panel 6. Side glue 91 is used on the side close to the liquid crystal display panel 6 within this range. Side glue 91 is also used on the side of the liquid crystal display panel 6 away from the substrate 11 within the positive projection range of the second annular limiting plate 72 and on the side of the second annular limiting plate 72 close to the substrate 11. The side glue 91 also uses a high-temperature resistant glue material to avoid melting of the glue material under high temperature conditions, while improving the adhesion and stability between the optical film 8, the liquid crystal display panel 6, the annular rubber limiting part 9 and the outer frame 7.

[0104] The disclosed embodiment also provides a vehicle, which may include a vehicle body having a sunroof, and the sunroof may include any of the above-mentioned display devices, wherein the light panel 1 is arranged closer to the interior of the vehicle body than the electroluminescent dimming panel 2.

[0105] This embodiment enables the vehicle to develop in a more intelligent direction by arranging a display device on the sunroof of the vehicle. It should be understood that the display device of this embodiment is not limited to being arranged on the sunroof, but can also be arranged on other windows of the vehicle as long as it does not affect the normal use of the vehicle.

[0106] In the description of this specification, the reference terms "some embodiments", "exemplarily", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0107] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are illustrative and cannot be understood as limitations on the present disclosure. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present disclosure. Therefore, any changes or modifications made in accordance with the claims and description of the present disclosure shall fall within the scope of the patent of the present disclosure.

Claims

1. A display device comprising at least a light board, wherein the light board comprises a substrate and a plurality of independently controlled light sources, the substrate having a plurality of mounting areas and light-transmitting areas between adjacent mounting areas, each light source being disposed in a corresponding mounting area, characterized in that: The display device further includes: An electro-modulating light-adjusting plate is formed on a side of the substrate away from the light source, the side of the electro-modulating light-adjusting plate away from the substrate being a light-inlet side for allowing external light to enter, and the side close to the substrate being a light-exit side for allowing the external light to exit, the electro-modulating light-adjusting plate comprising a plurality of independently controlled dimming zones, the orthographic projection of each dimming zone on the substrate covering the mounting area and the light-transmitting area, and each dimming zone comprising an electrochromic portion and a light-transmitting photosensitive element stacked between the light-inlet side and the light-exiting side, the light-transmitting photosensitive element being disposed on the side of the electrochromic portion close to the substrate; a control chip connected to the light source, the light-transmitting photosensitive element, and the electrochromic portion; the control chip is used to control the electrochromic portion of each dimming zone to be in an energized state when the display device is initially started, and to return the electrochromic portion to the energized state at intervals of the same period; Among them, in the dimming zone: if the translucent photosensitive element detects that external light has entered, the control chip controls the electrochromic part to be in a power-on state, and the electrochromic part is translucent in the power-on state; if the translucent photosensitive element does not detect that external light has entered, the control chip controls the electrochromic part to be in a power-off state, and the electrochromic part is non-translucent in the power-off state. At the same time, the control chip controls at least part of the light source corresponding to the dimming zone to emit light.

2. The display device according to claim 1, wherein The electrochromic portion includes an electrochromic layer and a light-transmitting conductive layer, wherein the light-transmitting conductive layer is located on a side of the electrochromic layer close to the substrate and is connected to the control chip; The control chip is located on the substrate and the peripheral side walls of the light-transmitting conductive layer.

3. The display device according to claim 1, wherein The light board also includes a single-sided light-transmitting layer formed on a side of the substrate away from the electroluminescent panel and located in the light-transmitting area. The surface of the single-sided light-transmitting layer close to the substrate is the light-incoming surface, and the surface away from the substrate is the light-emitting surface.

4. The display device according to any one of claims 1 to 3, characterized in that The display device further includes a first color temperature sensor, which is disposed on a side of the substrate away from the light source, and is used to detect the color temperature value of external light; wherein, The control chip is connected to the first color temperature sensor and is used to control the electrochromic part of each dimming zone to be in a power-off state and control each light source to emit light when the ambient color temperature value detected by the first color temperature sensor exceeds the color temperature adjustment range.

5. The display device according to claim 4, wherein: The display device further includes: a liquid crystal display panel, disposed on a side of the light source away from the substrate; a second color temperature sensor, disposed on a side of the liquid crystal display panel away from the light source, for detecting a display color temperature value of the liquid crystal display panel; The light source includes a plurality of light-emitting chips, the plurality of light-emitting chips have different colors and are independently controlled. Each of the light-emitting chips and the second color temperature sensor is connected to the control chip. The control chip is configured to control the second color temperature sensor to detect the display color temperature value of the liquid crystal display panel when the ambient color temperature value detected by the first color temperature sensor is within the color temperature adjustment range, and adjust the brightness of the corresponding light-emitting chip in the light source based on the difference between the display color temperature value and the standard color temperature value.

6. The display device according to claim 5, wherein: The display device further includes an outer frame, and the outer frame includes: A first annular limiting plate is located on a side of the electroluminescent panel away from the liquid crystal display panel and opposite to the edge non-dimming area of the electroluminescent panel; a second annular limiting plate, located on a side of the liquid crystal display panel away from the electroluminescent panel and opposite to an edge non-display area of the liquid crystal display panel; an annular side connecting plate, arranged around the electroluminescent dimming plate, the light board and the liquid crystal display panel, and connecting the first annular limiting plate and the second annular limiting plate; The first color temperature sensor is embedded in the first annular limiting plate, and the second color temperature sensor is arranged on the inner annular surface of the second annular limiting plate.

7. The display device according to claim 6, wherein: The light source further comprises a light-transmitting portion, which is provided on a side of the plurality of light-emitting chips away from the substrate, and the side of the light-transmitting portion away from the light-emitting chips in a cross section perpendicular to the plurality of light-emitting chips is in an arc shape; and / or An end of the second color temperature sensor away from the second annular limiting plate is a detection end, and the detection end is inclined toward the direction close to the liquid crystal display panel; and / or The display device also includes an optical film and an annular rubber limiter located within the annular side connecting plate. The optical film is disposed between the light source and the liquid crystal display panel. The area of the optical film is larger than that of the liquid crystal display panel. The annular rubber limiter is provided with an annular stepped groove. The optical film and the liquid crystal display panel are supported within the annular stepped groove and are fully in contact with the adjacent groove walls.

8. A vehicle comprising a vehicle body, characterized in that: The vehicle body is provided with a sunroof, and the sunroof includes the display device according to any one of claims 1 to 7. The light panel is arranged closer to the interior of the vehicle body than the electroluminescent panel.

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