WO2020228076A1 - 一种车载用抬头显示器 - Google Patents

一种车载用抬头显示器 Download PDF

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Publication number
WO2020228076A1
WO2020228076A1 PCT/CN2019/089950 CN2019089950W WO2020228076A1 WO 2020228076 A1 WO2020228076 A1 WO 2020228076A1 CN 2019089950 W CN2019089950 W CN 2019089950W WO 2020228076 A1 WO2020228076 A1 WO 2020228076A1
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WIPO (PCT)
Prior art keywords
light
display
emitting
vehicle
head
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PCT/CN2019/089950
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English (en)
French (fr)
Inventor
张丽娜
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深圳市歌美迪实业有限公司
张丽娜
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Application filed by 深圳市歌美迪实业有限公司, 张丽娜 filed Critical 深圳市歌美迪实业有限公司
Publication of WO2020228076A1 publication Critical patent/WO2020228076A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility

Definitions

  • This application relates to the technical field of displays, and in particular to a head-up display for vehicles.
  • HUD head-up display
  • the brightness of the display is usually required to change with the environment. Usually, the brightness of 10,000 cd/m 2 to 40,000 cd/m 2 is needed during the day. night need 30cd / m 2 to a luminance of 100cd / m 2 of.
  • the screen brightness of the existing head-up display is fixed, or the range of change is too small, or the change is uneven, which cannot meet the usage requirements.
  • This application aims to solve one of the technical problems in the related technology at least to a certain extent.
  • a vehicle-mounted head-up display includes:
  • a housing the housing defining a containing cavity and an opening communicating with the containing cavity;
  • a light-emitting assembly the light-emitting assembly is arranged in the containing cavity, and the light-emitting assembly includes a plurality of light-emitting units with different luminous intensities;
  • Display glass the display glass is disposed at the opening;
  • the brightness adjustment component is configured to control the on and off of the light-emitting unit and/or change the brightness of the light-emitting unit so that a variety of the light-emitting units can match with different light-emitting brightness.
  • the light-emitting assembly includes a light board, and a plurality of lamp beads are arranged on the light board, and each lamp bead forms a kind of the light-emitting unit.
  • the light board is formed with a plurality of regions independent of each other, and a kind of lamp beads are uniformly arranged in each region.
  • the light board is formed with a bright area and a dark area, the dark area is located on both sides of the bright area, and a higher luminous intensity is provided in the bright area
  • the lamp beads with lower luminous intensity are arranged in the dark area.
  • different lamp beads are arranged on the lamp panel in a staggered manner.
  • the light-emitting assembly further includes a lamp cap configured to concentrate the light of the light-emitting unit and an optical film that uniformly spreads the light-emitting line of the light-emitting unit, the The lamp cap and the optical film are sequentially arranged between the light-emitting unit and the display glass.
  • the brightness adjustment component includes:
  • a light sensor the light sensor is arranged outside the housing and configured to sense the light intensity of the external environment
  • the control circuit board is connected to the light sensor, and sends instructions to the light-emitting component according to the light intensity sensed by the light sensor.
  • the instructions include instructions for controlling the light-emitting unit to turn on and off and instructions for changing the magnitude of current flowing through the light-emitting unit.
  • the housing includes a lower cover and an upper cover that is closed on the lower cover, and the upper cover and the lower cover enclose the receiving cavity, The upper cover is provided with the opening.
  • the housing further includes a bracket embedded in the lower cover, the bracket envelops the periphery of the light-emitting component to avoid light leakage, and is mounted on the bracket A step surface is recessed on the inner side, and the display glass is installed on the step surface.
  • the light-emitting assembly includes a variety of light-emitting units with different luminous intensities, combined with the brightness adjustment assembly to control the on and off of the light-emitting unit and/or change the brightness of the light-emitting unit, it can make a variety of light-emitting
  • the unit has a variety of different matching relationships, and finally enables the brightness of the head-up display for vehicles to be adjusted in a wide range, and during the adjustment process, the brightness can achieve a balanced change, which is beneficial to ensure that the vehicle is used in various lighting conditions.
  • the head-up displays have better visual presentation.
  • Fig. 1 shows an exploded schematic diagram of a head-up display for a vehicle provided according to an embodiment of the present application
  • Figure 2 shows a cross-sectional view of a head-up display for a vehicle provided according to an embodiment of the present application
  • FIG. 3 shows a schematic structural diagram of a light board of a head-up display for a vehicle according to an embodiment of the present application
  • Fig. 4 shows a control block diagram of a brightness adjustment component of a head-up display for a vehicle according to an embodiment of the present application
  • FIG. 5 shows a schematic structural diagram of a projection screen attached to a vehicle-mounted head-up display according to an embodiment of the present application.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of this application, “multiple” means two or more than two, unless otherwise specifically defined.
  • the terms “installed”, “connected”, “connected” and “fixed” shall be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components.
  • installed shall be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components.
  • the “on” or “under” of the first feature on the second feature may be in direct contact with the first and second features, or indirectly through an intermediary. contact.
  • the "above”, “above” and “above” of the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the level of the first feature is higher than the second feature.
  • the first feature is "below”, “below” and “below” the second feature. It may be that the first feature is directly below or diagonally below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • This embodiment provides a head-up display for in-vehicle use.
  • the head-up display for a vehicle includes a housing 100, a light-emitting assembly 200, a display glass 300, and a brightness adjustment assembly 400.
  • the housing 100 defines a accommodating cavity 101 and an opening 102 communicating with the accommodating cavity 101.
  • the accommodating cavity 101 provides an installation place for the light emitting assembly 200 and the brightness adjustment assembly 400, and the opening 102 provides an installation place for the display glass 300.
  • the housing 100 should be constructed as a sealed structure other than the aforementioned opening 102. At this time, after the light-emitting assembly 200 and the display glass 300 are installed in place, on the one hand, the entire vehicle head-up display can be avoided. Light leakage improves the utilization rate of light; on the other hand, the housing 100 with a sealed structure can well protect the light-emitting components 200 and the like in the housing 100, which helps to ensure the service life of the head-up display for vehicles.
  • the housing 100 may include a lower cover 110 and an upper cover 120 covering the lower cover 110.
  • the upper cover 120 and the lower cover 110 enclose a receiving cavity 101.
  • the cover 120 is provided with an opening 102.
  • the lower cover 110 includes a bottom plate 111 and a peripheral plate 112 arranged on the edge of the bottom plate 111.
  • the bottom plate 111 and the peripheral plate 112 form a structure with an open top
  • the upper cover 120 has a shape corresponding to the outer size of the lower cover 110.
  • the frame has a hollow structure. When the frame is covered on the lower cover 110, the upper cover 120 of the hollow structure and the lower cover 110 of the open structure form a sealed Structure, the opening 102 is formed by the hollow space of the upper cover 120.
  • a better way to connect the upper cover 120 and the lower cover 110 is that the upper cover 120 has a surrounding plate 121 capable of enclosing the peripheral plate 112 of the lower cover 110, and the surrounding plate 121 and the peripheral plate 112 adopt an interference fit. In this way, the sealing effect after the upper cover 120 and the lower cover 110 are connected can be further improved.
  • the housing 100 also includes a bracket 130 embedded in the lower cover 110.
  • the bracket 130 covers the periphery of the light-emitting assembly 200 to avoid light leakage.
  • a step surface 131 is recessed on the inner side of the bracket 130, and the display glass 300 is installed on the step. ⁇ 131 ⁇ .
  • the bracket 130 is used as the second structural design of the housing 100.
  • the bracket 130 can work together with the upper cover 120 and the lower cover 110 to further improve the sealing effect and avoid Light leak.
  • the stepped surface 131 is a sinking design, that is, after the display glass 300 is installed on the stepped surface 131, at least the edge of the display glass 300 can be hidden and stored in
  • the accommodating cavity 101 formed by the housing 100 can ensure a sealing effect around the display glass 300, which is beneficial to improve the display effect of the display glass 300.
  • the light-emitting component 200 has light-emitting units with different luminous intensities, and the brightness adjusting component 400 is configured to control the on and off of the light-emitting units and/or change the brightness of the light-emitting units so that various light-emitting units can be matched with different light-emitting brightness.
  • the various light-emitting units can have various The different matching relationships ultimately enable the brightness of the vehicle head-up display to be adjusted in a wide range, and during the adjustment process, the brightness can achieve a balanced change, which is beneficial to ensure that the vehicle head-up display has the Better visual presentation.
  • the light-emitting units with different luminous intensities can be matched by turning on and off, or by changing the brightness, or by combining the two ways of turning on and off and changing the brightness. Not only can the light-emitting unit be matched with various light-emitting brightness, but the range of the brightness can be large enough, and at the same time, the brightness can achieve a balanced change during the transition of various brightness.
  • the light-emitting assembly 200 includes a light board 220 on which a variety of lamp beads 210 are arranged, and each type of the lamp beads 210 forms a light-emitting unit.
  • the type of lamp beads 210, the specific number and arrangement of each lamp beads 210 can be set according to the situation, for example, can be set according to the size of the display glass 300 and the content presented on the display glass 300 Make settings. In some cases, the user expects that information such as speed and oil volume can be clearly displayed, so at this time, the lamp beads 210 with higher luminous intensity can be set in the corresponding area of the display speed and oil volume, or more lamp beads 210 can be arranged. Lamp beads 210.
  • the brightness of the display glass 300 should be uniformly set.
  • the lamp beads 210 are required to be arranged on the lamp board 220 in a certain rule.
  • the light board 220 is formed with a plurality of regions independent of each other, and a kind of lamp beads 210 are uniformly arranged in each region.
  • the advantage of the above setting is that different types of lamp beads 210 can be set in different areas for easy classification, and the brightness adjustment component 400 can be accurately and simply controlled.
  • the light board 220 may be formed with a bright area 221 and a dark area 222, the dark area 222 is located on both sides of the bright area 221, in the bright area 221 is provided with luminous intensity
  • the lamp beads 210 with lower luminous intensity are arranged in the dark area 222.
  • all the lamp beads 210 in the bright area 221 and the dark area 222 can be controlled to light up at the same time, so that the head-up display for the vehicle can achieve high brightness. This allows users to see relevant information clearly even during the day.
  • the lamp bead 210 in the bright area 221 can be controlled to turn off, and the lamp bead 210 in the dark area 222 can be turned on, so that the head-up display for the vehicle can reach a very low brightness, so that under low light conditions , Users can not only see the relevant information clearly, but also avoid glare.
  • the current flowing through the lamp bead 210 can also be controlled by the brightness adjustment component 400, so that the brightness of the lamp bead 210 can be changed.
  • the lamp bead 210 can be matched A variety of luminous brightness can be produced, and the range of the brightness can be large enough, and at the same time, the brightness can achieve a balanced change during the transition of various brightness.
  • the lamp beads 210 may also be arranged on the lamp board 220 regardless of area.
  • the lamp beads 210 may be arranged on the lamp board 220 in a staggered manner.
  • the lamp beads 210 may also be spaced and evenly arranged on the lamp board 220 in a circular array or a rectangular array.
  • the light-emitting assembly 200 may also be formed by other light-emitting units, for example, the light-emitting unit may be an OLED.
  • the light-emitting assembly 200 may further include a lamp cap 230 configured to concentrate light on the light-emitting unit (for example, the lamp bead 210 in the foregoing), and a line that causes the light-emitting unit to emit light.
  • the uniformly dispersed optical film 240, the lamp cap 230 and the optical film 240 are sequentially arranged between the light emitting unit and the display glass 300.
  • the light of the light-emitting unit can be focused and used uniformly, which is beneficial to improve the final display effect.
  • the brightness adjustment component 400 includes a light sensor 420 and a control circuit board 410.
  • the light sensor 420 is disposed on the outside of the housing 100 and is configured to sense the light intensity of the external environment.
  • the control circuit board 410 is connected to the light sensor 420 and sends instructions to the light-emitting assembly 200 according to the light intensity sensed by the light sensor 420.
  • this instruction includes instructions for controlling the light-emitting unit to turn on and off and instructions for changing the current flowing through the light-emitting unit.
  • an MCU can be integrated on the control circuit board 410.
  • the MCU can analyze and calculate the light intensity of the external environment sensed by the light sensor 420, and then calculate the light emission according to the calculation result.
  • the unit controls accordingly.
  • the head-up display for vehicles may also include a adaptor mount 500 and a projection screen 600, and the aforementioned housing 100 and projection screen 600 are all installed on the adaptor mount 500
  • the main function of the adapter mount 500 and the projection screen 600 is to be able to change the position of the information displayed by the display glass 300, which facilitates the installation of an on-board head-up display according to different vehicle body structures.
  • the brightness of the vehicle head-up display can be adjusted in a wide range, and the brightness can achieve a balanced change during the adjustment process, which is beneficial to ensure that the vehicle head-up display has a better visual presentation under various lighting conditions;

Abstract

一种车载用抬头显示器，包括壳体（100）、发光组件（200）、显示玻璃（300）及亮度调节组件（400），壳体（100）限定出容纳腔（101）及与容纳腔（101）连通的开口（102），发光组件（200）设置在容纳腔（101）内，且发光组件（200）包括多种具有不同发光强度的发光单元，亮度调节组件（400）配置成控制发光单元的亮灭和/或改变发光单元的亮度以使得多种发光单元能够搭配出不同的发光亮度。车载用抬头显示器的亮度能够进行大范围的调节，并且在调节的过程中，亮度能够实现均衡变化，有利于确保在各种光照条件下，车载用抬头显示器都具有较好的视觉呈现。

Description

一种车载用抬头显示器
相关申请的交叉引用
本申请要求于2019年05月14日提交中国专利局的申请号为CN201910397187.6、名称为“一种车载用抬头显示器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示器技术领域，具体涉及一种车载用抬头显示器。
背景技术
为了使得导航、速度和油量等信息能够以直观的方式显示给驾驶员，越来越多的车辆安装了抬头显示器(HUD)，这样驾驶员在获取相关信息时，其视线不用离开路面，有利于驾驶安全。
为了使得显示器的各种信号能够在各种光照条件下都能清晰的显示，通常要求显示器的亮度能够随着环境变化，通常白天需要1万cd/m 2～4万cd/m 2的亮度，夜里需要30cd/m 2到100cd/m 2的亮度。而现有的抬头显示器的屏幕亮度是固定的，或者变化范围太小，或者变化不均衡，无法满足使用需求。
发明内容
本申请旨在至少在一定程度上解决相关技术中的技术问题之一。
为此，根据本申请的实施例，提供了一种车载用抬头显示器，该车载用抬头显示器包括：
壳体，所述壳体限定出容纳腔及与所述容纳腔连通的开口；
发光组件，所述发光组件设置在所述容纳腔内，且所述发光组件包括多种具有不同发光强度的发光单元；
显示玻璃，所述显示玻璃设置在所述开口处；以及
亮度调节组件，所述亮度调节组件配置成控制所述发光单元的亮灭和/或改变所述发光单元的亮度以使得多种所述发光单元能够搭配出不同的发光亮度。
作为所述车载用抬头显示器的进一步可选方案，所述发光组件包括灯板，所述灯板上设置有多种灯珠，每种灯珠形成一种所述发光单元。
作为所述车载用抬头显示器的进一步可选方案，所述灯板形成有相互独立的多个区域，每个区域内均匀设置有一种灯珠。
作为所述车载用抬头显示器的进一步可选方案，所述灯板形成有亮区和暗区，所述暗区位于所述亮区的两侧，在所述亮区内设置有发光强度较高的灯珠，在所述暗区内设置有 发光强度较低的灯珠。
作为所述车载用抬头显示器的进一步可选方案，不同灯珠相互交错设置在所述灯板上。
作为所述车载用抬头显示器的进一步可选方案，所述发光组件还包括配置成对所述发光单元起聚光作用的灯帽和使发光单元所发光线均匀散开的光学膜片，所述灯帽和所述光学膜片依次设置在所述发光单元和所述显示玻璃之间。
作为所述车载用抬头显示器的进一步可选方案，所述亮度调节组件包括：
光线传感器，所述光线传感器设置在所述壳体的外部，配置成感测外部环境的光线强度；以及
控制电路板，所述控制电路板连接于所述光线传感器，并根据所述光线传感器所感测到的光线强度发送指令至发光组件。
作为所述车载用抬头显示器的进一步可选方案，所述指令包括控制发光单元亮灭的指令及改变流过发光单元电流大小的指令。
作为所述车载用抬头显示器的进一步可选方案，所述壳体包括下盖及盖合在所述下盖上的上盖，所述上盖与所述下盖围合形成所述容纳腔，所述上盖开设有所述开口。
作为所述车载用抬头显示器的进一步可选方案，所述壳体还包括内嵌在所述下盖内的支架，所述支架包住所述发光组件的外围，避免漏光，且在所述支架的内侧凹陷形成有一台阶面，所述显示玻璃安装在所述台阶面上。
本申请的有益效果：
依据以上实施例中的车载用抬头显示器，由于发光组件包括多种具有不同发光强度的发光单元，再结合亮度调节组件控制发光单元的亮灭和/或改变发光单元的亮度，能够使得多种发光单元具有各种不同的搭配关系，最终使得该车载用抬头显示器的亮度能够进行大范围的调节，并且在调节的过程中，亮度能够实现均衡变化，有利于确保在各种光照条件下，车载用抬头显示器都具有较好的视觉呈现。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1示出了根据本申请实施例所提供的一种车载用抬头显示器的爆炸示意图；
图2示出了根据本申请实施例所提供的一种车载用抬头显示器的剖视图；
图3示出了根据本申请实施例所提供的一种车载用抬头显示器的灯板的结构示意图；
图4示出了根据本申请实施例所提供的一种车载用抬头显示器的亮度调节组件的控制 方框图；
图5示出了根据本申请实施例所提供的一种车载用抬头显示器附带投影屏的结构示意图。
主要元件符号说明：
100-壳体；200-发光组件；300-显示玻璃；400-亮度调节组件；500-转接安装架；600-投影屏；110-下盖；120-上盖；130-支架；210-灯珠；220-灯板；230-灯帽；240-光学膜片；410-控制电路板；420-光线传感器；101-容纳腔；102-开口；111-底板；112-周板；121-包围板；131-台阶面；221-亮区；222-暗区。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”和“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”和“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”和“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”和“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面” 可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
实施例
本实施例提供了一种车载用抬头显示器。
请参考图1-2，该车载用抬头显示器包括壳体100、发光组件200、显示玻璃300及亮度调节组件400。
其中，壳体100限定出容纳腔101及与该容纳腔101连通的开口102，容纳腔101为发光组件200和亮度调节组件400等提供安装场所，开口102则为显示玻璃300提供安装场所。
在本实施例中，壳体100宜被构造成一个除上述开口102之外的密封的结构，此时再将发光组件200和显示玻璃300等安装到位后，一方面可以避免整个车载用抬头显示器漏光，提高光线利用率；另一方面，密封结构的壳体100可以对壳体100内的发光组件200等进行很好的保护，有利于保证车载用抬头显示器的使用寿命。
为了实现壳体100的上述作用，作为一种示例，该壳体100可以包括下盖110及盖合在下盖110上的上盖120，上盖120与下盖110围合形成容纳腔101，上盖120开设有开口102。
具体地，该下盖110包括底板111及设置在底板111边缘的周板112，该底板111和周板112形成一顶部敞开的结构，上盖120则为一个与下盖110的外形尺寸相适配的框体，该框体为中空结构，当将框体盖合到下盖110上后，该中空结构的上盖120即与敞开结构的下盖110形成一个除开口102之外的密封的结构，该开口102则由上盖120的中空处所形成。
进一步地，上盖120与下盖110一种较好的连接方式是，上盖120具有能够包住下盖110的周板112的包围板121，该包围板121与周板112采用过盈配合的方式，可进一步提高上盖120和下盖110连接后的密封效果。
此外，壳体100还包括内嵌在下盖110内的支架130，支架130包住发光组件200的外围，避免漏光，且在支架130的内侧凹陷形成有一台阶面131，显示玻璃300安装在该台阶面131上。
此时可以理解，支架130作为壳体100的第二重结构设计，通过在下盖110内设置支架130，该支架130能够与上盖120和下盖110共同发挥作用，以进一步提高密封效果，避免漏光。同时，由于在支架130的内侧形成有一台阶面131，该台阶面131是一种内沉的设计方式，即显示玻璃300安装到该台阶面131上后，至少显示玻璃300的边缘能够隐藏收纳在壳体100所形成容纳腔101中，能够确保显示玻璃300周边的密封效果，有利于提高显示玻璃300的显示效果。
发光组件200具有不同发光强度的发光单元，亮度调节组件400配置成控制发光单元的亮灭和/或改变发光单元的亮度以使得多种发光单元能够搭配出不同的发光亮度。
如此，由于本申请的发光组件200包括多种具有不同发光强度的发光单元，再结合亮度调节组件400控制发光单元的亮灭和/或改变发光单元的亮度，能够使得多种发光单元具有各种不同的搭配关系，最终使得该车载用抬头显示器的亮度能够进行大范围的调节，并且在调节的过程中，亮度能够实现均衡变化，有利于确保在各种光照条件下，车载用抬头显示器都具有较好的视觉呈现。
具体而言，具有不同发光强度的发光单元之间可以通过亮灭的方式进行搭配，也可以通过改变亮度的方式进行搭配，还可以通过亮灭和改变亮度两种方式的结合来进行搭配，如此不仅可使得发光单元搭配出各种发光亮度，且该亮度的范围可以足够大，同时在各种亮度的转变过程中，亮度能够实现均衡的变化。
在一种实施例中，发光组件200包括灯板220，在灯板220上设置有多种灯珠210，每种灯珠210形成一种发光单元。
此处需要说明的是，灯珠210的种类、每种灯珠210的具体数量及排布情况可以视情况进行设定，例如可以根据显示玻璃300的大小以及显示玻璃300上所呈现的内容而进行设定。在某些情况下，用户期望速度和油量等信息能够被清楚地显示，那么此时可在显示速度和油量的对应区域内可设置发光强度就较高的灯珠210或者布置较多的灯珠210。
但在一般情况下，为了保证较好的整体视觉效果，显示玻璃300的亮度应当均匀设置，此时就要求灯珠210以一定的规律布置在灯板220上。
在某些具体的实施例中，灯板220形成有相互独立的多个区域，每个区域内均匀设置有一种灯珠210。
进行上述设置的好处在于，不同的区域可以设置不同种类的灯珠210，便于分类，亮度调节组件400可进行精确和简单的控制。
请结合参考图3，在一些更加具体的实施例中，灯板220上可形成有亮区221和暗区222，暗区222位于亮区221的两侧，在亮区221内设置有发光强度较高的灯珠210，在暗区222内设置有发光强度较低的灯珠210。
由此，当需要较高的亮度时(例如在光线很足的白天时)，可控制亮区221和暗区222的所有灯珠210同时亮起，使得车载用抬头显示器达到很高的亮度，使得用户即使在白天也能看清相关信息。当需要较低的亮度时(例如晚上)，可控制亮区221的灯珠210熄灭，暗区222的灯珠210亮起，使得车载用抬头显示器达到很低的亮度，这样在弱光线条件下，用户不仅能够看清相关信息，而且不至于刺眼。
结合前文所述，还可以通过亮度调节组件400控制流经灯珠210的电流，使得灯珠210 的亮度可以发生改变，此时再结合上述对灯珠210亮灭的控制可使得灯珠210搭配出各种发光亮度，且该亮度的范围可以足够大，同时在各种亮度的转变过程中，亮度能够实现均衡的变化。
在另一些具体的实施例中，灯珠210也可以不分区域而设置在灯板220上，例如灯珠210可以相互交错设置在灯板220上。
在其它一些具体的实施例中，灯珠210还可以以环形阵列或者矩形阵列的方式间隔、均匀布置在灯板220上。
以上所述只是对灯珠210的布置进行举例说明，旨在强调灯珠210的种类和排布等可以具有多种变形方式，上述实施例的目的不在于对这些种类和排布进行限制，而在于使本申请的技术方案能够被更好地理解。
除开上述采用灯珠210和灯板220形成发光组件200的实施例之外，在某些实施例中，发光组件200也可以由其它发光单元所形成，例如发光单元可采用OLED等。
请继续参考图1-2，在某些实施例中，发光组件200还可以包括配置成对发光单元(例如前文中的灯珠210)起聚光作用的灯帽230和使发光单元所发光线均匀散开的光学膜片240，灯帽230和光学膜片240依次设置在发光单元和显示玻璃300之间。
通过灯帽230和光学膜片240的设置，能够使得发光单元的光线能够被聚焦和均匀使用，有利于提高最终的显示效果。
请结合参考图4，在一种实施例中，亮度调节组件400包括光线传感器420及控制电路板410。
其中，光线传感器420设置在壳体100的外部，配置成感测外部环境的光线强度。控制电路板410连接于光线传感器420，并根据光线传感器420所感测到的光线强度发送指令至发光组件200。
结合前文所述，该指令则包括控制发光单元亮灭的指令及改变流过发光单元电流大小的指令。
需要说明的是，为了实现控制电路板410的目的，在控制电路板410上可集成MCU，该MCU可对光线传感器420所感测到的外部环境的光线强度进行分析运算，再根据运算结果对发光单元进行相应的控制。
请结合参考图5，基于车载用抬头显示器的安装使用环境，车载用抬头显示器还可以包括转接安装架500及投影屏600，前述壳体100及投影屏600均安装在该转接安装架500上，该转接安装架500及投影屏600的主要作用在于能够改变显示玻璃300所显示的信息的位置，有利于根据不同的车体构造而安装车载用抬头显示器。
通过以上对本申请各实施例的描述可知，本申请各实施方式至少具备如下的一种技术效果：
1、车载用抬头显示器的亮度能够进行大范围的调节，并且在调节的过程中，亮度能够实现均衡变化，有利于确保在各种光照条件下，车载用抬头显示器都具有较好的视觉呈现；
2、结构紧凑，密封效果好。
3、显示效果好。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (10)

  1. 一种车载用抬头显示器，其特征在于，包括：
    壳体，所述壳体限定出容纳腔及与所述容纳腔连通的开口；
    发光组件，所述发光组件设置在所述容纳腔内，且所述发光组件包括多种具有不同发光强度的发光单元；
    显示玻璃，所述显示玻璃设置在所述开口处；以及
    亮度调节组件，所述亮度调节组件配置成控制所述发光单元的亮灭和/或改变所述发光单元的亮度以使得多种所述发光单元能够搭配出不同的发光亮度。
  2. 如权利要求1所述的车载用抬头显示器，其特征在于，所述发光组件包括灯板，所述灯板上设置有多种灯珠，每种灯珠形成一种所述发光单元。
  3. 如权利要求2所述的车载用抬头显示器，其特征在于，所述灯板形成有相互独立的多个区域，每个区域内均匀设置有一种灯珠。
  4. 如权利要求3所述的车载用抬头显示器，其特征在于，所述灯板形成有亮区和暗区，所述暗区位于所述亮区的两侧，在所述亮区内设置有发光强度较高的灯珠，在所述暗区内设置有发光强度较低的灯珠。
  5. 如权利要求2所述的车载用抬头显示器，其特征在于，不同灯珠相互交错设置在所述灯板上。
  6. 如权利要求1-5中任一项所述的车载用抬头显示器，其特征在于，所述发光组件还包括配置成对所述发光单元起聚光作用的灯帽和使发光单元所发光线均匀散开的光学膜片，所述灯帽和所述光学膜片依次设置在所述发光单元和所述显示玻璃之间。
  7. 如权利要求1所述的车载用抬头显示器，其特征在于，所述亮度调节组件包括：
    光线传感器，所述光线传感器设置在所述壳体的外部，配置成感测外部环境的光线强度；以及
    控制电路板，所述控制电路板连接于所述光线传感器，并根据所述光线传感器所感测到的光线强度发送指令至发光组件。
  8. 如权利要求7所述的车载用抬头显示器，其特征在于，所述指令包括控制发光单元亮灭的指令及改变流过发光单元电流大小的指令。
  9. 如权利要求1所述的车载用抬头显示器，其特征在于，所述壳体包括下盖及盖合在所述下盖上的上盖，所述上盖与所述下盖围合形成所述容纳腔，所述上盖开设有所述开口。
  10. 如权利要求9所述的车载用抬头显示器，其特征在于，所述壳体还包括内嵌 在所述下盖内的支架，所述支架包住所述发光组件的外围，避免漏光，且在所述支架的内侧凹陷形成有一台阶面，所述显示玻璃安装在所述台阶面上。
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CN108388014A (zh) * 2018-05-15 2018-08-10 萤欧（上海）汽车科技有限公司 一种亮度自适应调节ar hud照明光学系统

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