CN1538214A

CN1538214A - monitor

Info

Publication number: CN1538214A
Application number: CNA2003101028631A
Authority: CN
Inventors: 李国I; 李国誌; 周晖凯
Original assignee: AU Optronics Corp
Current assignee: AUO Corp
Priority date: 2003-10-22
Filing date: 2003-10-22
Publication date: 2004-10-20

Abstract

A display with double-sided display function comprises two display panels opposite to each other and a direct type backlight assembly disposed between the two display panels. The light emitted from the backlight assembly can be uniformly dispersed towards two sides of the backlight assembly, and the light required by the two display panels is respectively provided, so that the effect of double-sided display is achieved.

Description

monitor

(1)技术领域(1) Technical field

本发明有关一种显示器，且特别是有关一种具有双面显示功能的显示器。The present invention relates to a display, and in particular to a display with double-sided display function.

(2)背景技术(2) Background technology

近年来，薄膜晶体管液晶显示器(TFT-LCD)因具有体积薄、重量轻以及低电磁辐射等优点，逐渐被广泛地使用。一般的薄膜晶体管液晶显示器主要包括一显示面板及一背光组件，具有单面显示的功能。利用具有多个光源的背光组件提供显示面板显示所需的均匀光线，而以背光组件其光源配置方式的不同及其发光原理的不同，一般分为旁侧式背光组件与直下式背光组件两种。In recent years, a thin film transistor liquid crystal display (TFT-LCD) has gradually been widely used due to its advantages of thin volume, light weight and low electromagnetic radiation. A general thin film transistor liquid crystal display mainly includes a display panel and a backlight assembly, and has a single-sided display function. The backlight assembly with multiple light sources is used to provide the uniform light required for display panel display, and the backlight assembly is generally divided into two types: side-type backlight assembly and direct-type backlight assembly according to the different light source configuration methods and different lighting principles of the backlight assembly. .

请同时参照图1A与图1B，图1A是传统液晶显示器的分解示意图，而图1B是依照图1A的液晶显示器的剖面示意图。传统的液晶显示器100包括有一显示面板110及一直下式背光组件(direct back light module)120。背光组件120包括光学膜123、反射片124、多个光源122与灯座121。灯座121，是用以置放多个光源122，而光源122例如是数个冷阴极管，用以提供显示面板110均匀且充足的光线，以表现较佳的显像品质。于灯座121上配置有一反射片124，用以反射光线，以防止光线外漏。光学膜123是配置于背光组件120及显示面板110之间，用以将从光源122发散的光线均匀地扩散并导引至显示面板110。光学膜123为一多层的构造，包括有扩散片(diffusing sheet)及棱镜片(prism sheet)。另外，显示面板110与一控制电路板125电性连接，而控制电路板125上的控制电路可控制显示面板110的各像素中的液晶分子的排列方向，待光线通过显示面板110时，将会显示对应的画面。Please refer to FIG. 1A and FIG. 1B at the same time. FIG. 1A is an exploded view of a conventional liquid crystal display, and FIG. 1B is a schematic cross-sectional view of a liquid crystal display according to FIG. 1A . A conventional liquid crystal display 100 includes a display panel 110 and a direct back light module 120 . The backlight assembly 120 includes an optical film 123 , a reflection sheet 124 , a plurality of light sources 122 and a lamp holder 121 . The lamp holder 121 is used to place a plurality of light sources 122, and the light sources 122 are, for example, several cold-cathode tubes to provide uniform and sufficient light to the display panel 110 for better image quality. A reflector 124 is disposed on the lamp holder 121 for reflecting light to prevent light from leaking out. The optical film 123 is disposed between the backlight assembly 120 and the display panel 110 for uniformly diffusing and guiding the light emitted from the light source 122 to the display panel 110 . The optical film 123 is a multi-layer structure, including a diffusing sheet and a prism sheet. In addition, the display panel 110 is electrically connected to a control circuit board 125, and the control circuit on the control circuit board 125 can control the arrangement direction of the liquid crystal molecules in each pixel of the display panel 110. When the light passes through the display panel 110, it will The corresponding screen is displayed.

然而，随着科技的日新月异，单只制造具有单面显示功能的液晶显示器已不足以适应瞬息万变的市场需求，故对于液晶显示器的从业人员莫不致力创新与增进液晶显示器的功用及效能。制造一具有双面显示功能的液晶显示器为众多改革发展方向之一，因具有双面显示功能的液晶显示器不仅比一般单面液晶显示器多了另一平面的显示功能，轻巧的机身设计与两个单独的单面显示器相较，更具有优异的可移植性，是众多创新改革中的优势特点。However, with the rapid development of technology, it is no longer enough to manufacture liquid crystal displays with single-sided display functions to meet the ever-changing market demand. Therefore, all practitioners of liquid crystal displays are committed to innovating and improving the functions and performance of liquid crystal displays. Manufacture a liquid crystal display with double-sided display function is one of many reform and development directions, because the liquid crystal display with double-sided display function not only has another display function of another plane than the general single-sided liquid crystal display, the light body design and two Compared with a separate single-sided display, it has excellent portability, which is an advantageous feature in many innovations.

(3)发明内容(3) Contents of the invention

有鉴于此，本发明的目的就是提供一种具有双面显示功能的显示器，包括二互相相对的显示面板和一配置于二显示面板之间的直下式背光组件。由背光组件射出的光线可往背光组件的两侧均匀地发散，分别提供二显示面板所需的光线而达到双面显示的效果。In view of this, the purpose of the present invention is to provide a display with double-sided display function, which includes two display panels facing each other and a direct-lit backlight assembly disposed between the two display panels. The light emitted from the backlight assembly can be evenly distributed to both sides of the backlight assembly, respectively providing the light required by the two display panels to achieve the effect of double-sided display.

根据本发明的目的，提出一种具有双面显示功能的显示器，包括一第一显示面板、一第二显示面板和配置于二显示面板之间的一直下式背光组件。背光组件包括多个光源及一灯座，灯座是用以置放光源，而光源是用以提供二显示面板显示所需的光线。分别配置一控制电路板于第一显示面板与第二控制电路板的侧边，而二光学膜则分别配置于背光组件及二显示面板之间。光源为多个冷阴极管，直线型排列于灯座中，而于相邻两个光源之间可另外配置一反射片，以增加光源的使用效率。反射片的材质为一具有高反射率的材料，并将此具有高反射率的材料以溅镀的方式形成此反射片。当光线自光源往背光组件的两侧发散时，穿透两侧的光学膜，后均匀地扩散至二显示面板，而使显示器达到双面显示的效果。According to the purpose of the present invention, a display with double-sided display function is proposed, which includes a first display panel, a second display panel and a direct backlight assembly arranged between the two display panels. The backlight assembly includes a plurality of light sources and a lamp holder. The lamp holder is used to place the light source, and the light source is used to provide the light required by the two display panels. A control circuit board is respectively arranged on the side of the first display panel and the second control circuit board, and two optical films are respectively arranged between the backlight assembly and the two display panels. The light source is a plurality of cold-cathode tubes arranged linearly in the lamp holder, and a reflection sheet can be additionally arranged between two adjacent light sources to increase the use efficiency of the light source. The reflective sheet is made of a material with high reflectivity, and the reflective sheet is formed by sputtering the material with high reflectivity. When the light diverges from the light source to both sides of the backlight assembly, it penetrates the optical films on both sides, and then spreads evenly to the two display panels, so that the display can achieve the effect of double-sided display.

为进一步说明本发明的上述目的、结构特点和效果，以下将结合附图对本发明进行详细的描述。In order to further illustrate the above-mentioned purpose, structural features and effects of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings.

(4)附图说明(4) Description of drawings

图1A是传统液晶显示器的分解示意图。FIG. 1A is an exploded schematic view of a conventional liquid crystal display.

图1B是依照图1A的液晶显示器的剖面示意图。FIG. 1B is a schematic cross-sectional view of the liquid crystal display shown in FIG. 1A .

图2是依照本发明的较佳实施例的液晶显示器的剖面示意图。FIG. 2 is a schematic cross-sectional view of a liquid crystal display according to a preferred embodiment of the present invention.

图3乃依照本发明的较佳实施例所绘示的另一液晶显示器的剖面示意图。FIG. 3 is a schematic cross-sectional view of another liquid crystal display according to a preferred embodiment of the present invention.

(5)具体实施方式(5) specific implementation

请参照图2，其是依照本发明的较佳实施例的液晶显示器的剖面示意图。液晶显示器200包括二个显示面板210A与210B，以及一直下式背光组件220。显示面板210A与显示面板210B是互相相对，而直下式背光组件220是配置于显示面板210A与210B之间。直下式背光组件220包括二光学膜223A与223B、多个光源222与灯座221。灯座221，是用以置放光源222，而光源222例如是数个冷阴极管，直线型排列于灯座221中，用以提供显示面板210均匀且充足的光线，以表现较佳的显像品质。光学膜223A是配置于光源222与显示面板210A之间，用以将从光源222发散的光线均匀地扩散并导引至显示面板210A。光学膜223B是配置于光源222与显示面板210B之间，用以将从光源222发散的光线均匀地扩散并导引至显示面板210B。光学膜223A与光学膜223B为多层的构造，其中各包括有扩散片(diffusing sheet)及棱镜片(prism sheet)等。另外，显示面板210A与210B是分别与控制电路板225A及225B电性连接，而控制电路板225A与225B上的控制电路可用以分别控制显示面板210A与210B的各像素中的液晶分子的排列方向，待光线通过显示面板210A与210B时，将会显示对应的画面。再者，基于液晶显示器200具有双面显示功能的考虑，将控制电路板225A与225B较佳地配置于液晶显示器200的侧边。Please refer to FIG. 2 , which is a schematic cross-sectional view of a liquid crystal display according to a preferred embodiment of the present invention. The liquid crystal display 200 includes two display panels 210A and 210B, and a direct-lit backlight assembly 220 . The display panel 210A and the display panel 210B are opposite to each other, and the direct type backlight assembly 220 is disposed between the display panels 210A and 210B. The direct type backlight assembly 220 includes two optical films 223A and 223B, a plurality of light sources 222 and a lamp holder 221 . The lamp holder 221 is used to place the light source 222, and the light source 222 is, for example, several cold cathode tubes, which are linearly arranged in the lamp holder 221 to provide uniform and sufficient light for the display panel 210, so as to perform a better display. like quality. The optical film 223A is disposed between the light source 222 and the display panel 210A, and is used to evenly diffuse and guide the light emitted from the light source 222 to the display panel 210A. The optical film 223B is disposed between the light source 222 and the display panel 210B, and is used to evenly diffuse and guide the light emitted from the light source 222 to the display panel 210B. The optical film 223A and the optical film 223B are multilayer structures, each of which includes a diffusing sheet, a prism sheet, and the like. In addition, the display panels 210A and 210B are electrically connected to the control circuit boards 225A and 225B respectively, and the control circuits on the control circuit boards 225A and 225B can be used to control the alignment direction of the liquid crystal molecules in the pixels of the display panels 210A and 210B respectively. , when the light passes through the display panels 210A and 210B, the corresponding picture will be displayed. Furthermore, based on the consideration that the liquid crystal display 200 has a double-sided display function, the control circuit boards 225A and 225B are preferably disposed on the sides of the liquid crystal display 200 .

请参照图3，其是依照本发明的较佳实施例的另一液晶显示器的剖面示意图。液晶显示器300包括二个显示面板310A及310B，以及一直下式背光组件320。显示面板310A与显示面板310B是互相相对，而直下式背光组件320是配置于显示面板310A与310B之间。直下式背光组件320包括二光学膜323A与323B、反射片324、多个光源322与灯座321。灯座321，是用以置放光源322，而光源例如是数个冷阴极管，直线型排列于灯座321中，用以提供显示面板310均匀且充足的光线，以表现较佳的显像品质。光学膜323A是配置于光源322与显示面板310A之间，用以将从光源322发散的光线均匀地扩散并导引至显示面板310A。光学膜323B是配置于光源322与显示面板310B之间，用以将从光源322发散的光线均匀地扩散并导引至显示面板310B。光学膜323A与光学膜323B为多层的构造，其中各包括有扩散片及棱镜片等。另外，显示面板310A与310B是分别与控制电路板325A及325B电性连接，而控制电路板325A及325B上的控制电路可用以分别控制显示面板310A与310B的各像素中的液晶分子的排列方向，待光线通过显示面板310A与310B时，将会显示对应的画面。再者，基于液晶显示器300具有双面显示功能的考虑，将控制电路板325A与325B较佳地配置于液晶显示器300的侧边。Please refer to FIG. 3 , which is a schematic cross-sectional view of another liquid crystal display according to a preferred embodiment of the present invention. The liquid crystal display 300 includes two display panels 310A and 310B, and a direct-lit backlight assembly 320 . The display panel 310A and the display panel 310B are opposite to each other, and the direct type backlight assembly 320 is disposed between the display panels 310A and 310B. The direct type backlight assembly 320 includes two optical films 323A and 323B, a reflection sheet 324 , a plurality of light sources 322 and a lamp holder 321 . The lamp holder 321 is used to place the light source 322, and the light source is, for example, several cold-cathode tubes, which are arranged linearly in the lamp holder 321 to provide uniform and sufficient light for the display panel 310 to perform better image display. quality. The optical film 323A is disposed between the light source 322 and the display panel 310A, and is used to evenly diffuse and guide the light emitted from the light source 322 to the display panel 310A. The optical film 323B is disposed between the light source 322 and the display panel 310B, and is used to evenly diffuse and guide the light emitted from the light source 322 to the display panel 310B. The optical film 323A and the optical film 323B are multi-layer structures, each of which includes a diffusion sheet and a prism sheet. In addition, the display panels 310A and 310B are electrically connected to the control circuit boards 325A and 325B respectively, and the control circuits on the control circuit boards 325A and 325B can be used to control the alignment direction of the liquid crystal molecules in the pixels of the display panels 310A and 310B respectively. , when the light passes through the display panels 310A and 310B, the corresponding picture will be displayed. Furthermore, based on the consideration that the liquid crystal display 300 has a double-sided display function, the control circuit boards 325A and 325B are preferably disposed on the sides of the liquid crystal display 300 .

在此，液晶显示器300与较佳实施例，即图2中所示的液晶显示器200所不同的是，液晶显示器300中于相邻两个光源322之间另外配置一反射片324，用以反射光线，以增加光源322的使用效率。反射片324的材质是一具有高反射率的材料，并将此具有高反射率的材料以溅镀的方式形成反射片324于灯座321上。Here, the difference between the liquid crystal display 300 and the preferred embodiment, that is, the liquid crystal display 200 shown in FIG. light, so as to increase the use efficiency of the light source 322. The reflective sheet 324 is made of a material with high reflectivity, and the reflective sheet 324 is formed on the lamp holder 321 by sputtering the material with high reflectivity.

本发明的上述实施例所揭露的液晶显示器，通过二显示面板与一直下式背光组件的组合，可使由光源所发出的光线往背光组件的两侧发散，透过两侧的光学膜，均匀地扩散至二个显示面板，而达到双面显示的效果。同时，也由于直下式背光组件比旁侧式背光组件具有更佳的光线均齐度与较佳的显像品质，更佳地可应用于大尺寸的显示器中。The liquid crystal display disclosed in the above-mentioned embodiments of the present invention, through the combination of two display panels and a direct-type backlight assembly, can make the light emitted by the light source diverge to both sides of the backlight assembly, pass through the optical films on both sides, and evenly Diffusion to the two display panels to achieve the effect of double-sided display. At the same time, because the direct-type backlight assembly has better light uniformity and better image quality than the side-type backlight assembly, it can be better applied to large-size displays.

本发明的液晶显示器的优点在于，单只一液晶显示器却具有双面显示的功能，不仅可取代两个单独的单面显示器，更因液晶显示器中背光组件的共享而更节省制造成本。轻巧的机身设计，与两个单独的单面显示器相比较之下，本发明的液晶显示器更具有优异的可移植性。另外，也由于本发明采用直下式背光组件的设计，故本发明更可以应用于大尺寸的显示器上。The advantage of the liquid crystal display of the present invention is that a single liquid crystal display has the function of double-sided display, which not only can replace two separate single-sided displays, but also saves manufacturing cost due to the sharing of backlight components in the liquid crystal display. Compared with two independent single-sided displays, the liquid crystal display of the present invention has excellent portability due to the light body design. In addition, because the present invention adopts the design of the direct-lit backlight assembly, the present invention can be applied to large-size displays.

虽然本发明已参照当前的具体实施例来描述，但是本技术领域中的普通技术人员应当认识到，以上的实施例仅是用来说明本发明，应理解其中可作各种变化和修改而在广义上没有脱离本发明，所以并非作为对本发明的限定，只要在本发明的实质精神范围内，对以上所述实施例的变化、变形都将落在本发明权利要求书的范围内。Although the present invention has been described with reference to the current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, and it should be understood that various changes and modifications can be made in the present invention. It does not deviate from the present invention in a broad sense, so it is not intended as a limitation to the present invention. As long as it is within the spirit of the present invention, changes and modifications to the above-mentioned embodiments will fall within the scope of the claims of the present invention.

Claims

1. display comprises at least:

One first display panel;

One second display panel is relative with this first display panel; And

One backlight assembly, be to be disposed between this first display panel and this second display panel, this backlight assembly comprises a plurality of light sources and a lamp socket, and this lamp socket is in order to putting these light sources, and these light sources are in order to this first display panel and the required light of this second display panel to be provided;

Wherein, launch toward the both sides of this backlight assembly, be incident upon this first display panel and this second display panel respectively, and make this display reach the effect of double-sided display from the light that these light sources provide.

2. display as claimed in claim 1 it is characterized in that this display also comprises a first control circuit plate that electrically connects mutually with this first display panel, and this first control circuit plate is a side that is disposed at this display.

3. display as claimed in claim 1 it is characterized in that this display also comprises a second control circuit plate that electrically connects mutually with this second display panel, and this second control circuit plate is a side that is disposed at this display.

4. display as claimed in claim 1 is characterized in that this display also comprises one first blooming, is to be disposed between this backlight assembly and this first display panel.

5. display as claimed in claim 1 is characterized in that this display also comprises one second blooming, is to be disposed between this backlight assembly and this second display panel.

6. display as claimed in claim 1 is characterized in that disposing a reflector plate, to increase the service efficiency of these light sources between adjacent two these light sources.

7. display as claimed in claim 6, the material that it is characterized in that these reflector plates are one to have the material of high reflectance.

8. display as claimed in claim 6 is characterized in that these reflector plates are that mode with sputter is formed on this lamp socket.

9. display as claimed in claim 1 is characterized in that this backlight assembly is a direct type backlight assembly.

10. display as claimed in claim 1 is characterized in that these light sources are cold-cathode tubes.

11. display as claimed in claim 1, the arrangement mode that it is characterized in that these light sources are to be linear pattern.