WO2018205483A1 - 直下式背光显示模组及显示设备 - Google Patents
直下式背光显示模组及显示设备 Download PDFInfo
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- WO2018205483A1 WO2018205483A1 PCT/CN2017/103431 CN2017103431W WO2018205483A1 WO 2018205483 A1 WO2018205483 A1 WO 2018205483A1 CN 2017103431 W CN2017103431 W CN 2017103431W WO 2018205483 A1 WO2018205483 A1 WO 2018205483A1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
Definitions
- the present invention relates to the field of display device technologies, and in particular, to a direct type backlight display module and a display device.
- the liquid crystal display has become a mainstream display in the market due to its low electromagnetic radiation, low power consumption, low heat generation, light weight and the like, and the LED backlight display has also been widely used.
- the LED backlight display on the market is mainly divided into a side-entry type and a direct-down type according to the light entrance mode.
- the side-entry type is to install the LED light string as the backlight module around the liquid crystal screen
- the direct-type type is to install the LED light string as the backlight module on the front and back of the liquid crystal screen
- the direct-lit backlight display is relatively straight. Lower cost and wider application.
- the direct type backlit display can only be used as a display and has a single function.
- the combination of commonly used liquid crystal displays and touch devices is a market development trend.
- the market demand for touch input is also getting higher and higher, such as the pursuit of the original handwriting input effect, so the electromagnetic screen technology has been widely used.
- the electromagnetic screen technology usually requires the electromagnetic board to be mounted on the liquid crystal screen.
- the electromagnetic board is not affected by the light source when it is mounted on the liquid crystal screen.
- the present invention provides a direct-lit backlight display module and a display device, which can integrally integrate an electromagnetic touch input into a direct-lit backlight display module, and can also ensure a liquid crystal display device. Have a good display.
- a direct-lit backlight display module includes a backlight module and a liquid crystal panel corresponding to each other, and a main control circuit connected to the backlight module and the liquid crystal panel;
- the backlight module includes a back plate, a light emitting structure disposed on the back plate, a diffusing plate facing the light emitting structure, and an electromagnetic input module disposed between the light emitting structure and the liquid crystal panel;
- the electromagnetic input module includes an electromagnetic diaphragm disposed between the light emitting structure and the liquid crystal panel, and an electromagnetic control circuit electrically connected to the electromagnetic diaphragm, wherein the electromagnetic diaphragm has a light transmittance greater than or equal to 50 %, the electromagnetic diaphragm is connected to the main control circuit through the electromagnetic control circuit.
- the electromagnetic film is disposed between the diffusion plate and the liquid crystal panel.
- the optical film assembly includes a reflective film, a brightness enhancement film, and a diffusion film which are sequentially stacked, the reflective film corresponding to the diffusion plate, and the diffusion film corresponding to the liquid crystal panel;
- the electromagnetic film is disposed between any two of the reflective film, the brightness enhancement film and the diffusion film; or the electromagnetic film is disposed between the reflective film and the diffusion plate; or the electromagnetic film Provided between the diffusion film and the liquid crystal panel.
- the brightness enhancement film includes a prism film, a microlens, and a reflective polarizer disposed in sequence, the prism film corresponding to the reflective film, and the reflective polarizer corresponding to the diffusion film;
- the electromagnetic film is disposed between any two of the prism film, the microlens and the reflective polarizer; or the electromagnetic film is disposed between the prism film and the reflective film; or the electromagnetic film A sheet is disposed between the reflective polarizer and the diffusion film.
- the electromagnetic film is disposed in the diffusion plate.
- the shape and area of the electromagnetic film, the liquid crystal panel, and the optical film assembly are the same, and the edges of the electromagnetic film are aligned with the edges of the liquid crystal panel and the optical film assembly.
- the area of the electromagnetic film is smaller than the area of the liquid crystal panel or the optical film assembly, and the electromagnetic film is located somewhere on the circumferential side of the liquid crystal panel or the optical film assembly.
- the method further includes a touch input module disposed on the liquid crystal panel, the touch input
- the module includes a touch input board disposed on the liquid crystal panel, and a touch control circuit connected to the touch input board, and the touch control circuit is connected to the main control circuit.
- a middle frame structure is further included, and the diffusion plate, the optical film assembly, the electromagnetic film, and the liquid crystal panel are all fixed in the middle frame structure.
- the light emitting structure includes a direct type light bar disposed on the back plate and facing the diffusion plate, and a reflection sheet surrounding the bottom side and the circumference side of the direct type light bar, The reflection sheet corresponds to the diffusion plate.
- the present invention also provides a display device including the direct type backlight display module as described above.
- the invention has the following beneficial effects: by combining the electromagnetic input technology and the direct-type backlight display module, the electromagnetic input and the backlight display are integrated in the direct-lit backlight mode at a low cost, and the direct-lit backlight display module is realized.
- the multi-functionality moreover, not only can realize the liquid crystal display function, but also realize the touch and analog track, and can also simulate the real handwriting writing, and has a good user experience.
- FIG. 1 is a schematic diagram showing the structure of a direct type backlight display device according to the present invention.
- FIG. 2 is a schematic block diagram showing the structure of a direct type backlight display device according to the present invention (when the electromagnetic film is disposed between the diffusion plate and the liquid crystal panel);
- FIG 3 is a schematic block diagram showing the structure of a direct type backlight display device according to the present invention (when the electromagnetic film is disposed between the light emitting structure and the diffusion plate);
- FIG. 4 is a schematic block diagram showing the structure of a direct type backlight display device (when the electromagnetic film is disposed in the diffusion plate) according to the present invention.
- an embodiment of the present invention provides a direct-lit backlight display module, including a backlight module 100 and a liquid crystal panel 300 corresponding to each other, and a main control circuit connected to the backlight module 100 and the liquid crystal panel 300.
- the backlight module 100 and the liquid crystal panel 300 can be controlled by providing a main control circuit connected to the backlight module 100 and the liquid crystal panel 300 to facilitate liquid crystal display or other functions.
- the backlight module 100 includes a back plate 110, a light emitting structure disposed on the back plate 110, and a diffusing plate 140 facing the light emitting structure, and The electromagnetic input module 200 between the light emitting structure and the liquid crystal panel 300.
- the backplane 110 provides a mounting base for the entire backlight module 100, and the light emitting structure emits light to illuminate the liquid crystal panel 300.
- electromagnetic input can be realized on the direct type backlight display module.
- the electromagnetic input technology can be combined with the direct-lit backlight display module, and the electromagnetic input and the backlight display can be integrated in the direct-lit backlight mode at a low cost, and the multi-function of the direct-lit backlight display module can be realized.
- the direct-lit backlight display module can not only realize the liquid crystal display function, but also realize the touch and analog track, and can also simulate the real handwriting writing, and has a good user experience.
- the light emitting structure includes a direct-type light bar 120 disposed on the back plate 110 and facing the diffusing plate 140, and a reflective sheet surrounding the bottom side and the circumferential side of the direct-lighting light bar 120. 130.
- the reflection sheet 130 corresponds to the diffusion plate 140.
- the direct-lit light bar 120 emits light to the diffusing plate 140, and the diffusing plate 140 can change the beam angle of the light. After the light passes through the diffusing plate 140, the beam angle becomes 160-170 degrees.
- the diffusion plate 140 can also atomize the image to improve the uniformity of the image.
- the diffuser plate 140 also has a certain rigidity to facilitate supporting the optical film assembly 150.
- the reflective sheet 130 can reflect a portion of the exposed light, and reflect the light to the diffusing plate 140 to allow the light to be used twice, thereby improving the utilization efficiency of the light and improving the brightness.
- the reflection sheet 130 is semi-enclosed on one side of the direct-type light bar 120, and the light emitted by the direct-type light bar 120 can be sufficiently reflected to better improve the light utilization efficiency.
- the optical film assembly 150 includes a reflective film, a brightness enhancement film, and a diffusion film which are sequentially stacked, and the reflective film corresponds to the diffusion plate 140, and the diffusion film corresponds to the electromagnetic input module 200.
- the optical patch assembly 150 can further process the light for better light effects. The light is reflected multiple times by the reflective film to further improve light utilization efficiency and enhance brightness.
- the brightness of the light can be further enhanced by the brightness enhancement film to enhance the display intensity effect.
- the diffusing sheet can further atomize the image, enhance the viewing angle, and enhance the brightness.
- the brightness enhancement film comprises a prism film or a microlens or a reflective polarizer. The prism film, the microlens and the reflective polarizer are further processed to further enhance the brightness and ensure the viewing angle.
- the electromagnetic input module 200 includes an electromagnetic diaphragm 210 disposed between the light emitting structure and the liquid crystal panel 300, and an electromagnetic control circuit electrically connected to the electromagnetic diaphragm 210, and the electromagnetic diaphragm is transparent.
- the optical film 210 is connected to the main control circuit 400 through the electromagnetic control circuit.
- the light rate is greater than or equal to 50%.
- the electromagnetic input module 200 further includes an electromagnetic pen that cooperates with the electromagnetic diaphragm 210.
- the electromagnetic pen 210 can be input on the liquid crystal panel 300, and the electromagnetic plate 210 disposed on the liquid crystal panel 300 can sense the writing of the electromagnetic pen, thereby transmitting a precise handwriting mode and simulating the real use. The pen diameter effect of the pen is written to obtain a good original handwriting input experience.
- the electromagnetic diaphragm 210 can be controlled by the electromagnetic control circuit, and the electromagnetic input function can be conveniently turned on, off, and adjusted.
- the electromagnetic film 200 may be disposed between the diffusion plate 140 and the liquid crystal panel 300.
- the electromagnetic diaphragm 210 may be disposed between any two of the reflective film, the brightness enhancement film, and the diffusion film. That is, the electromagnetic film 210 may be disposed between the reflective film and the brightness enhancement film, or may be disposed between the brightness enhancement film and the diffusion film.
- the electromagnetic film 210 may be disposed between any two of the prism film, the microlens, and the reflective polarizer. That is, the electromagnetic film 210 may be disposed between the prism film and the microlens, or may be disposed between the microlens and the reflective polarizer.
- the electromagnetic diaphragm 210 can also Or disposed between the prism film and the reflective film, or the electromagnetic film 210 may be disposed between the reflective polarizer and the diffusion film. In addition, in other embodiments, the electromagnetic film 210 may be disposed between the reflective film and the diffusion plate 140 or between the diffusion film and the liquid crystal panel 300. When the electromagnetic diaphragm 210 is disposed at these positions, a good electromagnetic input effect can be achieved without affecting the display function of the liquid crystal panel.
- the shape and area of the electromagnetic film 210, the liquid crystal panel 300, and the optical film assembly 150 are the same, and the edge of the electromagnetic film 210 and the liquid crystal panel 300 and the optical film are the same.
- the edges of assembly 150 are aligned. That is, the electromagnetic film 210 is completely aligned with the liquid crystal panel 300 and the optical film assembly 150, and the electromagnetic film 210 completely covers the corresponding position of the liquid crystal panel 300, so that the entire liquid crystal panel 300 is The corresponding position can obtain electromagnetic input effects.
- the area of the electromagnetic film 210 is smaller than the area of the liquid crystal panel 300 or the optical film assembly 150, and the electromagnetic film 210 is located in the liquid crystal panel 300 or the optical film.
- the electromagnetic film 210 is not completely aligned with the liquid crystal panel 300 and the optical film assembly 150, but only corresponds to a certain portion of the liquid crystal panel 300, and only the corresponding portion has an electromagnetic input effect, which satisfies Different use needs.
- the electromagnetic film 200 may also be disposed between the light emitting structure and the diffusion plate 140. That is, the electromagnetic film sheet 200 may be kept at a certain distance from the diffusion plate 140, and the electromagnetic film sheet 200 may be attached to the diffusion plate 140.
- the electromagnetic film 200 is disposed between the light emitting structure and the diffusion plate 140, an electromagnetic input function can also be realized.
- the distance between the electromagnetic film 200 and the light emitting structure is 10 cm or more. Specifically, the distance between the electromagnetic diaphragm 200 and the direct-lit light bar 120 is greater than or equal to 10 cm.
- the electromagnetic coil 200 is provided with an electromagnetic coil, and a eddy current is generated in the electromagnetic coil, if the distance between the direct-type light bar 120 and the electromagnetic diaphragm is less than 10 cm, the eddy current in the electromagnetic coil is affected. Thus, the normal operation of the electromagnetic diaphragm 200 is affected.
- a silicon steel sheet may be disposed between the electromagnetic diaphragm 200 and the direct-type light bar 120, and the influence of the direct-type light bar 120 on the electromagnetic film 200 may be isolated.
- the electromagnetic diaphragm 210 and the shape and surface of the diffuser plate 140 The products are all the same, and the edges of the electromagnetic film 210 are aligned with the edges of the diffusion plate 140. That is, the electromagnetic diaphragm 210 is completely aligned with the diffusion plate 140, and the electromagnetic diaphragm 210 completely covers the diffusion plate 140, so that electromagnetic input effects can be obtained at positions corresponding to the entire diffusion plate 140. . Further, in other embodiments, the area of the electromagnetic diaphragm 210 is smaller than the area of the diffusion plate 140, and the electromagnetic diaphragm 210 is located somewhere on the circumferential side of the diffusion plate 140. That is, the electromagnetic diaphragm 210 is not completely aligned with the diffusion plate 140, but only at a certain portion of the diffusion plate 140, and only the corresponding portion has an electromagnetic input effect to meet different use requirements.
- the electromagnetic film 200 can also be directly disposed in the diffusion plate 140, and the electromagnetic input function can also be realized.
- the direct-lit backlight display module further includes a touch input module disposed on the liquid crystal panel 300, and the touch input module includes a touch input board disposed on the air panel 300 (air side). And a touch control circuit coupled to the touch input pad, the touch control circuit being coupled to the main control circuit.
- the touch input circuit can be controlled by a touch control circuit to control the opening, closing and adjusting of the touch input function, so that the direct type backlight display module has a common touch input function.
- the touch input panel of the touch input module also has good light transmittance, and does not affect the display effect of the direct type backlight display module.
- the conventional touch input module does not need to react to the pressure of the input, and can be operated by both the hand and the special pen.
- the electromagnetic input module can sense the weight of the input pressure, can simulate real writing notes, but requires a dedicated electromagnetic pen to play its professionalism.
- the touch input module may be disposed on both sides of the liquid crystal panel 300 simultaneously with the electromagnetic input module, or may be separately disposed on the air side surface of the liquid crystal panel 300. In this way, it is possible to meet different usage requirements at the same time.
- the touch input module can be configured as a capacitive input module or an infrared input module.
- the capacitive input module includes a capacitive input board disposed on the air panel 300 (air side), and is connected to the capacitive input board. a capacitance control circuit, the capacitance control circuit being connected to the main control circuit.
- the touch input module is configured as an infrared input module, the infrared input module is disposed on the liquid crystal panel 300.
- the direct type backlight display module further includes a tempered glass 310 disposed on a surface of the touch input board.
- the tempered glass 310 With the tempered glass 310, the touch input panel and the liquid crystal panel 300 can be protected.
- the tempered glass 310 may be directly disposed on the air side surface of the liquid crystal panel 300 to directly protect the liquid crystal panel 300.
- the direct type backlight display module further includes a middle frame structure, and the diffusion plate, the optical film assembly, the electromagnetic film, and the liquid crystal panel are all fixed in the middle frame structure.
- the middle frame structure the mounting base and the protective casing can be provided for the diffusion plate 140, the optical film assembly 150, the electromagnetic diaphragm 210, and the liquid crystal panel 300, so that the structure is more firm and reliable.
- the main control circuit, the electromagnetic control circuit and the touch control circuit may also be disposed on the middle frame structure.
- the present invention also provides a display device including the direct type backlight display module as described above.
- the direct-type backlight display module and the display device provided by the invention integrate the electromagnetic input technology and the direct-type backlight display module, and realize the integration of the electromagnetic input and the backlight display in the direct-lit backlight mode at a low cost. It realizes the multi-functionality of the direct-lit backlight display module; moreover, it can not only realize the liquid crystal display function, but also realize the touch and analog track, and can also simulate the real handwriting writing, and has a good user experience.
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
Claims (10)
- 一种直下式背光显示模组,其特征在于,包括相互对应的背光模组和液晶面板,以及与所述背光模组和液晶面板连接的主控电路;所述背光模组包括背板,设置于所述背板上的发光结构,与所述发光结构正对的扩散板,以及设置于所述发光结构与液晶面板之间的电磁输入模组;所述电磁输入模组包括设置于所述发光结构与液晶面板之间的电磁膜片,以及与所述电磁膜片电连接的电磁控制电路,所述电磁膜片的透光率大于或等于50%,所述电磁膜片通过所述电磁控制电路与所述主控电路连接。
- 根据权利要求1所述的直下式背光显示模组,其特征在于,所述电磁膜片设置于所述扩散板和液晶面板之间。
- 根据权利要求2所述的直下式背光显示模组,其特征在于,所述光学膜片组件包括依次叠设的反射膜、增光膜及扩散膜,所述反射膜与所述扩散板对应,所述扩散膜与所述液晶面板对应;且所述电磁膜片设置于所述反射膜、增光膜及扩散膜中的任意两个之间;或者所述电磁膜片设置于所述反射膜和扩散板之间;或者所述电磁膜片设置于所述扩散膜和液晶面板之间。
- 根据权利要求3所述的直下式背光显示模组,其特征在于,所述增光膜包括依次设置的棱镜膜、微透镜及反射偏光片,所述棱镜膜与所述反射膜对应,所述反射偏光片与所述扩散膜对应;且所述电磁膜片设置于所述棱镜膜、微透镜及反射偏光片中的任意两个之间;或者所述电磁膜片设置于所述棱镜膜和反射膜之间;或者所述电磁膜片设置于所述反射偏光片和扩散膜之间。
- 根据权利要求1所述的直下式背光显示模组,其特征在于,所述电磁膜片设置于所述扩散板中。
- 根据权利要求1-4任意一项所述的直下式背光显示模组,其特征在于,所述电磁膜片、液晶面板及光学膜片组件的形状和面积均相同,且所述电磁膜片的边缘与所述液晶面板和光学膜片组件的边缘对齐。
- 根据权利要求1-4任意一项所述的直下式背光显示模组,其特征在于,所述电磁膜片的面积小于与所述液晶面板或光学膜片组件的面积,且所述电磁膜片位于所述液晶面板或光学膜片组件的周侧某处。
- 根据权利要求1-5任意一项所述的直下式背光显示模组,其特征在于,还包括设置于所述液晶面板上的触摸输入模组,所述触摸输入模组包括设置于所述液晶面板上的触摸输入板,以及与所述触摸输入板连接的触摸控制电路,所述触摸控制电路与所述主控电路连接。
- 根据权利要求1-5任意一项所述的直下式背光显示模组,其特征在于,所述发光结构包括设置于所述背板上并与所述扩散板正对的直下式灯条,以及围设于所述直下式灯条底侧和周侧的反射片,所述反射片与所述扩散板对应。
- 一种显示设备,其特征在于,包括如权利要求1-9任意一项所述的直下式背光显示模组。
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CN107037626B (zh) * | 2017-05-12 | 2023-09-29 | 广州视源电子科技股份有限公司 | 直下式背光显示模组及显示设备 |
CN106980207B (zh) * | 2017-05-12 | 2023-09-01 | 广州视源电子科技股份有限公司 | 直下式背光显示模组及显示设备 |
CN107390962A (zh) * | 2017-08-16 | 2017-11-24 | 祝小军 | 一种电磁电容双触摸无边框超窄超薄的教育触摸一体机 |
CN107422518B (zh) * | 2017-09-23 | 2023-05-16 | 欧浦登(顺昌)光学有限公司 | 一种红外触控液晶一体屏显示模组 |
CN207571424U (zh) * | 2017-10-23 | 2018-07-03 | 广州视源电子科技股份有限公司 | 触控模组、液晶显示屏及终端设备 |
CN207396930U (zh) * | 2017-10-23 | 2018-05-22 | 广州视源电子科技股份有限公司 | 直下式背光显示模组及终端装置 |
CN107728379B (zh) * | 2017-11-10 | 2023-12-22 | 欧浦登(顺昌)光学有限公司 | 一种超薄直下式背光平板液晶显示模组 |
CN108037624A (zh) * | 2017-12-28 | 2018-05-15 | 惠州市华星光电技术有限公司 | 显示器 |
CN208506432U (zh) * | 2018-05-03 | 2019-02-15 | 广州视源电子科技股份有限公司 | 电磁膜固定结构、直下式背光显示模组及显示器 |
CN208506441U (zh) * | 2018-07-19 | 2019-02-15 | 广州视源电子科技股份有限公司 | 电磁膜安装结构、背光显示模组及显示设备 |
CN110780487A (zh) * | 2019-11-12 | 2020-02-11 | 广州视源电子科技股份有限公司 | 显示器与电子设备 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1534333A (zh) * | 2003-03-28 | 2004-10-06 | Lg.飞利浦Lcd有限公司 | 具有电磁型触摸屏的液晶显示设备 |
CN101498849A (zh) * | 2008-01-30 | 2009-08-05 | 汉王科技股份有限公司 | 手写液晶显示器 |
US20130215072A1 (en) * | 2012-02-17 | 2013-08-22 | Chih-Chung Lin | Method of manufacturing touch panel |
US9285941B2 (en) * | 2013-05-08 | 2016-03-15 | Samsung Display Co., Ltd. | Liquid crystal display |
CN106980207A (zh) * | 2017-05-12 | 2017-07-25 | 广州视源电子科技股份有限公司 | 直下式背光显示模组及显示设备 |
CN107037626A (zh) * | 2017-05-12 | 2017-08-11 | 广州视源电子科技股份有限公司 | 直下式背光显示模组及显示设备 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW554214B (en) * | 1999-06-30 | 2003-09-21 | Toshiba Corp | Flat display device having backlight and electromagnetic shielding case |
JP2002259053A (ja) * | 2001-03-01 | 2002-09-13 | Minolta Co Ltd | 入出力一体型表示装置及び電子機器 |
KR100480823B1 (ko) * | 2002-11-14 | 2005-04-07 | 엘지.필립스 엘시디 주식회사 | 표시장치용 터치 패널 |
JP5098778B2 (ja) | 2008-04-24 | 2012-12-12 | エプソンイメージングデバイス株式会社 | 照明装置、液晶表示装置及び電子機器 |
CN101295216A (zh) * | 2008-05-09 | 2008-10-29 | 友达光电股份有限公司 | 具多种触控功能的显示装置 |
JP5252431B2 (ja) * | 2008-11-06 | 2013-07-31 | 株式会社ジャパンディスプレイウェスト | タッチパネル装置、電気光学装置及び電子機器 |
CN102043262B (zh) * | 2009-10-09 | 2013-01-09 | 汉王科技股份有限公司 | 电磁式手写液晶显示器 |
JP3159253U (ja) | 2010-02-23 | 2010-05-13 | 洋華光電股▲ふん▼有限公司 | 照明光源付きタッチパネルモジュール |
WO2011135988A1 (en) | 2010-04-28 | 2011-11-03 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor display device and driving method the same |
JP3166969U (ja) | 2011-01-18 | 2011-03-31 | 洋華光電股▲ふん▼有限公司 | タッチパネル |
JP2013247074A (ja) | 2012-05-29 | 2013-12-09 | Sharp Corp | 表示装置 |
JP6005016B2 (ja) | 2013-09-11 | 2016-10-12 | 三菱電機株式会社 | 移動体用表示装置 |
JP6610107B2 (ja) | 2015-09-11 | 2019-11-27 | 大日本印刷株式会社 | 画像表示装置 |
CN206892494U (zh) * | 2017-05-12 | 2018-01-16 | 广州视源电子科技股份有限公司 | 直下式背光显示模组及显示设备 |
CN206892504U (zh) * | 2017-05-12 | 2018-01-16 | 广州视源电子科技股份有限公司 | 直下式背光显示模组及显示设备 |
-
2017
- 2017-05-12 CN CN201710335386.5A patent/CN107037626B/zh active Active
- 2017-09-26 JP JP2020511846A patent/JP7042900B2/ja active Active
- 2017-09-26 WO PCT/CN2017/103431 patent/WO2018205483A1/zh active Application Filing
- 2017-09-26 US US16/314,002 patent/US20220326572A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1534333A (zh) * | 2003-03-28 | 2004-10-06 | Lg.飞利浦Lcd有限公司 | 具有电磁型触摸屏的液晶显示设备 |
CN101498849A (zh) * | 2008-01-30 | 2009-08-05 | 汉王科技股份有限公司 | 手写液晶显示器 |
US20130215072A1 (en) * | 2012-02-17 | 2013-08-22 | Chih-Chung Lin | Method of manufacturing touch panel |
US9285941B2 (en) * | 2013-05-08 | 2016-03-15 | Samsung Display Co., Ltd. | Liquid crystal display |
CN106980207A (zh) * | 2017-05-12 | 2017-07-25 | 广州视源电子科技股份有限公司 | 直下式背光显示模组及显示设备 |
CN107037626A (zh) * | 2017-05-12 | 2017-08-11 | 广州视源电子科技股份有限公司 | 直下式背光显示模组及显示设备 |
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