TWI285282B - Display - Google Patents

Abstract

A display includes two opposite display panel and a backlight module disposed interposed thereof. The backlight module includes several light sources, several reflector and a holder. The holder is for holding the light sources. The light sources are for providing light to the display panels. Each of the reflectors is disposed between any two adjacent light sources.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a display, and more particularly to a display having a double-sided display function. [Prior Art] In recent years, thin film transistor liquid crystal displays (TFT_LCD) have been widely used due to their advantages of thin size, light weight, and low electromagnetic radiation. The thin film transistor liquid crystal display mainly includes a display panel and two. The backlight module has the function of single-sided display. The backlight module with multiple light sources provides uniform light required for display panel display, and the backlight module has different light source configuration modes and different light-emitting principles, and is generally divided into a side-lit backlight module and a direct-lit backlight. Two modules. 1 Referring to FIG. 1A and FIG. 1B simultaneously, FIG. 1A is a schematic exploded view of a conventional liquid crystal display, and FIG. 1B is a cross-sectional view showing the liquid crystal display according to FIG. A conventional liquid crystal display unit 有一 includes a display panel 110 and a direct back light module 120. The backlight module 120 includes an optical film 123, a reflection sheet 124, a plurality of light sources (lamp tubes) 12 2 and a socket 1 21 . The lamp holder 1 2 1 is used for arranging a plurality of light sources 1 2 2, and the light source 1 2 2 is, for example, a plurality of cold cathode tubes for providing uniform and sufficient light of the display panel 110 to perform better display. Like quality. A reflector 124 is disposed on the socket 121 for reflecting light to prevent light leakage. The optical film 123 is disposed between the backlight module 120 and the display panel 110 for uniformly diffusing and diverting light emitted from the light source 122 to the display panel 110. The optical film 123 is of a multi-layer construction including a diffusing sheet and a prism sheet. In addition, the display panel 110 is electrically connected to a control circuit board 115, and the control circuit is electrically controlled.

Page 5 V. INSTRUCTIONS (2) The control circuit on the circuit board 125 can control the arrangement direction of the crystal molecules of the display panel, and the light is passed through the corresponding liquid in the respective pixels of the display. When the panel is 11 ,, it will be obvious, and with the rapid development of technology, the single-energy liquid crystal display is not enough to pay for the first time, and the market demand for LCD monitors is not good. Therefore, the «ν丄田贝矣 is not committed to innovative fish, who is the age of the mouth - the function and effectiveness of the mouth. Manufactured with a 雔 /, 柘 液 日 显 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : Liquid helium: f is not the same portability, {the early show is not comparable, more excellent [invented W... innovation characteristics in the reform. In view of the above, the object of the present invention is to provide a one-to-one display, including a type of /, and a display of the direct north I phase between the display panels, the display, the panel and a configuration in the second Both sides of the backlight module: sentence mf. The light emitted by the backlight module needs the light to reach the double-sided display. =: For the two display panels, the 'first one: the purpose' is proposed - between the display panels with the double-sided display function One back: ί plate, - the second display panel and the two strips of reflective strips and groups. The optical module includes a plurality of light sources and a plurality of light sources to provide two display panels, and a socket for mounting the light source. The light source is used between two light sources, and 兮: the required light ‘the respective reflection sheets are disposed adjacent to each other, and a control electric=r light source is arranged in parallel with the reflection sheets. The side of the three optical first display panel and the second control (four) circuit board --- respectively arranged in the backlight module and the second display panel

1285282 Case No. 9212Sd as shown in V. Invention Description (3). The light source is a plurality of tubes, preferably cold in the holder. The material of the reflection sheet is _two: two: g, linear arrangement. The material with high reflectivity is made of money material: when the light source is diverged to the sides of the backlight module, the film. When the light is from J. - "Do not panel, and the effect of the display to achieve double-sided display, so that the above object of the present invention, the specific understanding, the following specific - preferred embodiment, more: f easy to understand as follows: I with the port, DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [Embodiment], please refer to FIG. 2, which is a schematic cross-sectional view of a liquid crystal display in accordance with a preferred embodiment of the present invention. The liquid crystal display 2 〇 〇 includes two display panels 210A and 210B, and a direct-type backlight module 22 〇. The display panel 21 0A and the display panel 21 0B are opposed to each other, and the direct type backlight module 22 is disposed between the display panels 210A and 210B. The direct type backlight module 22() includes two optical films 223A and 223B, a plurality of light sources 222 and a lamp holder 221. The lamp holder 221 is used for arranging the light source 222, and the light source 222 is a lamp tube, for example, a plurality of cold cathode tubes, which are linearly arranged in the lamp holder 221 for providing uniform and sufficient display panels 21 0A and 21 0B. Light to better display quality. The optical film 223A is disposed between the light source 222 and the display panel 210A to uniformly diffuse and illuminate the light diverging from the light source 2 2 2 to the display panel 210A. The optical film 223B is disposed between the light source 222 and the display panel 210B to uniformly diffuse and guide the light diffused from the light source 222 to the display panel 210B. The optical film 22 3A and the optical film 22 3B are of a multi-layered structure, each of which includes a diffusing sheet and a sheet (prism)

Page 7 1285282

Sheet) and so on. In addition, the display panels 210A and 210B are electrically connected to the control circuit boards 22 5A and 225B, respectively, and the control circuit board 225 is used to control the display panels 21A and (10), respectively. The arrangement direction of the liquid crystal molecules in each element, and the corresponding light is displayed by the light passing through the display panel 210Α210Β. Further, based on the consideration of the double-sided display function of the liquid crystal display 2, the control boards 225A and 225B are preferably disposed on the side of the liquid crystal display 200.

"Monthly reference Fig. 3 is a schematic cross-sectional view of another liquid crystal display device in accordance with a preferred embodiment of the present invention. The liquid crystal display 3 〇 〇 includes two display panels 310A and 310B, and a direct-type backlight module 32 〇. The display panel 3/1 0A and the display panel 31 〇B are opposed to each other, and the direct type backlight module 32Q is disposed between the display panels 31A and 310B. The direct type backlight module 32 包括 includes two optical films 323A and 323B, a reflection sheet 324, a plurality of light sources 322 and a lamp

^321. The lamp holder 321 is used for arranging the light source 322, and the light source 322 is a lamp tube, for example, a plurality of cold cathode tubes, which are linearly arranged in the lamp holder 3 2 i for providing uniformity of the display panels 31 0A and 31 0B. And sufficient light to show better imaging quality. The optical film 323A is disposed between the light source 322 and the display panel 3 10 A for uniformly diffusing the light diverging from the light source 32 2 and guiding it to the display panel 31 0A. The optical film 323B is disposed between the light source 322 and the display panel 3 10 B to uniformly diffuse the light diverging from the light source 32 2 and guide it to the display panel 310B. The optical film 323A and the optical film 323B have a multilayer structure in which each of them includes a diffusion sheet, a gusset, and the like. In addition, the display boards 31 0A and 31 0B 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 respectively control the respective pixels of the display panels 31 0A and 31 0B. The alignment direction of the liquid crystal molecules,

1285282 92128480 V. Description of invention (5) ±_Ά 修正 Correction

When the light passes through the display panels 31 0A and 31 0B, the corresponding side will be displayed. Based on the consideration of the double-sided display function of the liquid crystal display, the control boards 3 2 5 A and 3 2 5 B are preferably used. It is disposed on the side of the liquid crystal display 3 〇〇. Here, the liquid crystal display 30 is different from the preferred embodiment, that is, the liquid crystal display 200 shown in FIG. 2, the liquid crystal display 3 is disposed between the adjacent two light sources 322, and is additionally configured. A reflective sheet 324 is used to reflect light to increase the efficiency of use of the light source 322. The material of the reflection sheet 324 is a material having high reflectivity, and the material having high reflectivity is sputtered to form a reflection sheet 324 on the socket 321 . The work display panel and the light spread to the back to the second. Because of the straightness and the middle, the hair has a double, which is more. Lightly, this is due to the fact that the present invention is applied to the two display panel type backlight modules of the above-mentioned solid-state backlight module, which are better than the above-mentioned ones. The liquid crystal display of the design of the moon is shown in the display of the direct size. Although the liquid crystal display disclosed in the embodiment can be diverged by the side of the light source through the combination of the two illuminating modules, the optical film is transmitted through both sides. , all in one sentence, and achieve the effect of double-sided display. At the same time, it also has better light homogenization than the side-lit backlight module. The advantage of being able to be applied to a large-sized display device is that a single liquid energy can replace two separate medium backlight modules. The sharing is more economical and has superior portability with two separate single-sided displays. The backlight module is designed so that it is on the transmitter.久本#日月 has been the preferred embodiment of the crystal single phase and the display surface display caused by comparison, but also more exposed

Page 9 1 285 528 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Modifications and retouching, therefore, the scope of protection of the present invention is subject to the definition of the scope of the appended patent application.

Page 10 1285282 Case No. 92128480 Year Revision Correct description of the drawing [Simple description of the diagram] Figure 1A is a schematic exploded view of a conventional liquid crystal display. Fig. 1B is a schematic cross-sectional view showing the liquid crystal display according to Fig. 1A. Figure 2 is a cross-sectional view showing a liquid crystal display according to a preferred embodiment of the present invention. Figure 3 is a cross-sectional view showing another liquid crystal display according to a preferred embodiment of the present invention. Schematic description of the description 1 0 0, 2 0 0, 3 0 0: liquid crystal display 110, 210A, 210B, 310A, 310B · · display panel 1 2 0, 2 2 0, 3 2 0: backlight module 121, 221, 321 : lamp holder 122 > 222 ^ 322 : light source 123, 223A, 223B, 323A, 323 B : optical film 124, 324 : reflection sheet 125, 225A, 225B, 325A, 325 B : control circuit board

Page 11

Claims (1)

l A display comprising at least: a first display panel; a second display panel opposite to the first display panel, a backlight module disposed on the first display panel and the second panel The backlight module includes a plurality of lamps, a plurality of strips 2: a piece and a lamp holder, wherein the lamp holder is used for placing the lamps, and the lamps are used to provide the Lights required for a display panel and the second display panel, each of the reflective sheets is disposed between two adjacent ones of the tubes, and the plurality of the reflective sheets are arranged in parallel to increase The use of the lamps; in the second, the light provided by the far-end lamps is displayed on both sides of the backlight module to display the first display panel and the second display surface, and the Afro reaches the effect of double-sided display. The display device according to the first aspect of the invention, wherein the display panel, and the first control circuit 3 that is not electrically connected to the panel, such as the Shenkong straight circuit board system Configured on one side of the display. The device further includes the display device according to the item 1, wherein the display panel reads the first control circuit of the first display panel and is electrically connected to the display panel. Configured on one side of the display. The thief further includes a display as described in item 1 of the first item, wherein the display is between the π panels. Firstly, the display module is disposed in the backlight module and the first display device, such as the display device described in the first application of the Japanese Patent Application No. 1, wherein the display film is disposed in the backlight Module with the second display 1285822 6. The display of claim 1, wherein the material of the reflective sheet is a material having a high reflectivity. 7. The display of claim 1, wherein the reflective sheets are formed on the lamp holder by sputtering. The display device of claim 1, wherein the backlight module is a continuous backlight module. 9. The display of claim 1, wherein the lamps B series cold cathode tube (Co 1 d Cathode F 1 uorescent Lamp, _CFL). 10. The display of claim 1, wherein the arrangement of the lamps is linear. A display device includes: a first display panel; a second display panel opposite to the first display panel; and a backlight module disposed on the first display panel and the second display panel The backlight module includes a plurality of light sources, a plurality of reflective sheets, and a lamp holder for arranging the light sources, and the light sources are configured to provide the first display panel and the second The light required by the display panel is disposed between the adjacent two of the light sources, and the light sources are arranged in parallel with the reflective sheets to increase the efficiency of use of the light sources; The light provided by the light source is emitted to the two sides of the backlight module, and is respectively incident on the first display panel and the second display panel, so that the display does not achieve the effect of double-sided display. Page 13 1285282 Case No. 92128480 Λ_Ά 修正 Amendment VI. Designation of representative drawings (1) The representative figure of this case is: Figure 3 (2), the representative symbol of the representative figure of this case is a simple description: 300 LCD display 310Α , 310Β : Display panel 320 Backlight module 321 : Lamp holder 322 Light source 323Α, 3 23Β ·· Optical film 325Α, 3 2 5Β : Control circuit board Page 3