CN1508604A - Structure of front light module optical mechanism - Google Patents
Structure of front light module optical mechanism Download PDFInfo
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- CN1508604A CN1508604A CNA021571589A CN02157158A CN1508604A CN 1508604 A CN1508604 A CN 1508604A CN A021571589 A CNA021571589 A CN A021571589A CN 02157158 A CN02157158 A CN 02157158A CN 1508604 A CN1508604 A CN 1508604A
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Abstract
The invention is a structure about front light model optical mechanism, it mainly comprises: a monitor, an optical base piece, a reflector, and a source. One surface of the optical base piece has several parallel hollow parts; the light source is reflected downwards to the reflector.
Description
Technical field
The present invention relates to a kind of easy effectual structure fast, it is the structure that is applicable to the front optical module optical facilities, utilize unique design on the optical base-substrate, can solve the application that at present the most popular opto-electronics circle is produced, as LCD etc., make image quality brightness even, effectively utilize the light of light source, and enlarge the visual angle.
Background technology
Figure 1A is the enlarged drawing of the optical base-substrate design of known front optical module, be to pars intermedia by side portion, by thick attenuation gradually, between be toward the pars intermedia thickness that successively decreases with the ladder pattern of one-level one-level, the spacing of one-level (pitch) is about 20 to 30 microns (μ m), and the height of each grade decline is about 5 to 10 microns (μ m); Figure 1B is the synoptic diagram of the optical base-substrate of known front optical module, and the optical facilities thickness of whole front optical module is about 5 to 6 inches.
In No. the 21883/2001st, disclosed Japanese patent laid-open publication gazette on January 26 calendar year 2001, reflection LCD and mini information electronic product, it mainly is the slim light-weighted implementation method of explanation reflection LCD, reflection LCD, two unilateral relatively to glass substrate between, Polarizer is arranged, polarizer, diffuser plate, colorful film, transparency electrode, liquid crystal layer is in turn arranged, and uneven jog is arranged in glass substrate near beholder's one end, be used to provide the light guide plate function of preceding light (front light), preceding light comprises the substrate near the user, is arranged on the light source near user's substrate-side.
In No. the 00017/1990th, disclosed Japanese patent laid-open publication gazette on January 5 nineteen ninety, with the Japanese patent laid-open publication gazette the 84618/1990th that discloses March 26 nineteen ninety, a kind of planar light source unit is described, it comprises that a kind of photoconductive tube (light guide pope) is first element, it has a light entrance face (light incident surface), a light emitting surface, this light emitting surface is orthogonal to light entrance face, and a reflecting surface is right against light emitting surface, and form with a kind of smooth extracting mechanism (light extraction mechanism), the light extracting mechanism has another name called and is light withdrawal device (light extractor), and light source is arranged on the end opposite of photoconductive tube; A kind of light-operated film-making (lightcontrol sheet) is second element, has a kind of prism array (prism array), prism array is arranged on the surface of emission that is adjacent to photoconductive tube, and has leg-of-mutton prism (prism), and arrange and to make the light-emitting area of prism top end towards photoconductive tube, the formed generation line of the prism of wherein arbitrary composition photoconductive tube (generating line), almost being parallel to light emitting source arranges, and a kind of reflector plate (reflecting sheet), or reflecting surface (reflecting surface), be arranged on the light reflective surface that is adjacent to photoconductive tube; The list of references that discloses March 26 nineteen ninety, No. the 84618/1990th, Japanese patent laid-open publication gazette also discloses a kind of homogeneous surface atomizing simultaneously and handles (surface-roughening treatment) in the light emitting surface (light emittingsurface) of first element; In this two list of references, light all diverges in a specific direction, yet, but be not content with actual optical characteristics, fail to obtain No. the 18879/1994th, Japanese patent laid-open publication gazette (be illustrated in disclosed on January 28th, 1994) as: satisfied uniformity coefficient in the emission light of light-emitting area; In particular, there is no existing planar light source device, broad visual angle moderately be provided, be fit to a kind of planar light source unit (planar light source unit), with as a kind of LCD on monitor or thin plate televisor.
Known structure has four shortcomings of the following stated usually: one, room brilliancy deficiency, two, the visual angle is limited, three, the exiting surface luminance shortage, four, single fluorescent tube (lamp).
Summary of the invention
This case inventor in view of this, so propose a kind of easy effectual structure fast, it is a kind of structure that is applicable to the front optical module optical facilities, utilize unique design on the optical base-substrate, can solve the application that at present the most popular opto-electronics circle is produced,, make image quality brightness even as LCD etc., effectively utilize the light of light source, and enlarge the visual angle.
The present invention proposes a kind of easy effectual structure fast, it is the structure that is applicable to the front optical module optical facilities, utilize unique design on the optical base-substrate, can solve the application that at present the most popular opto-electronics circle is produced, as LCD etc., make its image quality brightness even, effectively utilize the light of light source and enlarge the visual angle, fundamental purpose has three:
The first, spine (rige) structure of the present invention by designing on optical base-substrate impels the light that leaves from optical base-substrate, breaks away from the direction of originally carrying out in optical base-substrate, and has bigger range of scatter, is used to promote the size at visual angle;
Second, paddy portion (valley) structure of the present invention by on optical base-substrate, designing, the light that impels the light source by a side of optical base-substrate to send, enter the inside of optical base-substrate, run into the surface of paddy portion, carry out inner full-reflection (internal total reflection), make the light reflection arrive reverberator downwards, can promote the uniformity coefficient that the light of display is left in emission;
The 3rd, the light that the present invention can effectively utilize light source to send, and do not increase too much volume and weight at display.
Description of drawings
Figure 1A is the enlarged drawing of the optical base-substrate design of known front optical module.
Figure 1B is the synoptic diagram of the optical base-substrate of known front optical module.
Fig. 2 amplifies key diagram according to the structure of front optical module optical facilities first embodiment of the present invention.
Fig. 3 is the structure second example structure key diagram of front optical module optical facilities of the present invention.
Fig. 4 amplifies key diagram for structure second example structure of front optical module optical facilities of the present invention.
Fig. 5 is the structure key diagram of second embodiment of the invention front optical module optical facilities.
Fig. 6 is the principle of luminosity key diagram of second embodiment of the invention front optical module optical facilities.
Fig. 7 is the outside drawing of second embodiment of the invention front optical module optical facilities.
Embodiment
First embodiment
Fig. 2 is according to the present invention, and the structure of front optical module optical facilities first embodiment is amplified key diagram; The structure of first embodiment of the invention front optical module optical facilities, mainly constitute: a display (not being shown in Fig. 2) by following each parts, display is made up of a plurality of pixels (pixels), and pixel possesses front end and the back of the body main surface of end (back major surface); An optical base-substrate 1, optical base-substrate 1 have two main facing surfaces (two major opposingsurfaces), and wherein a surface 12 is level and smooth, and abut against the position on the main surface of display front end (front major surface); A reverberator 3, reverberator 3 are arranged on the position that is adjacent to the display back of the body main surface of end (back major surface); A light source 51, light source 51 are used for light 7 is imported optical base-substrate 1, and wherein light 7 is from a side of optical base-substrate 1, enter optical base-substrate 1, and because of running into the surface of the 141a of paddy portion, because of inner full-reflection (internal total reflection), reflection becomes light 71, by optical base-substrate 1 downwards, then pass through display, and reflected, later pass through display by reverberator 3, enter optical base-substrate 1, leave optical base-substrate 1 afterwards, thus, optical base-substrate 1 is strengthened the brightness of display.
The invention is characterized in: another surface 14 of optical base-substrate 1, it has a plurality of parallel 141a of paddy portion, 141b, 141c, 141d, 141e, 141f and the 143a of spine, 143b, 143c, 145a, 145b, 145c, 145d, 145e, its 141a of two-story valley portion and the 141b of paddy portion have certain spacing, the spacing P1 that represents as Fig. 2,141b of paddy portion and the 141c of paddy portion have certain spacing, the spacing P2 that represents as Fig. 2, or the like, thus, the light 9 that sends by the light source 51 of a side of optical base-substrate 1, enter the inside of optical base-substrate 1, run into the 141a of paddy portion, 141b, the surface of 141c, carry out inner full-reflection, make light 7, become light 71 respectively successively, 73,75, reflection arrives reverberator 3 downwards, can promote the uniformity coefficient that the light of display is left in emission, then, leave the light 71 of optical base-substrate 1, can break away from the direction of originally in optical base-substrate 1, carrying out at the 145b of spine, produce bigger range of scatter by optical base-substrate 1, break away from the direction of originally in optical base-substrate 1, carrying out, promote the size at visual angle.
The 143a of spine in the optical base-substrate 1, it is by the first surface 143a1 of warpage face more than, form with the second surface 143a2 of warpage face more than, and the 143a of spine, the 143b of adjacency, 143c constitute a group of spine (ridge group) 143, and 143,145 of groups of spine, as the group of spine 143,145, can be occupied by the 141a of paddy portion, or one the 3rd surface 149 is occupied, and the 3rd surface 149 is the smooth surface 12 that is parallel to optical base-substrate 1.
The structure of the 143a of spine and the explanation of function, because the 143a of spine has two surfaces in opposite directions, be respectively the second surface 143a2 of the first surface 143a1 of warpage face more than and warpage face more than, the light that leaves from optical base-substrate 1 is provided, break away from the direction of originally in optical base-substrate 1, carrying out, and have bigger range of scatter, be used for promoting the size at visual angle.
The structure of the 141a of paddy portion and the explanation of function, because the 141a of paddy portion (valley) is a wedge-shaped surface, it is by one the 4th surperficial 141a1, one the 5th surperficial 141a2 and one the 6th surperficial 141a3 form, the 4th surperficial 141a1 is to the side from optical base-substrate 1, enter the light 7 of optical base-substrate 1, carry out inner full-reflection, make light 7 reflections become light 71 downwards, arrive reverberator 3, the 5th surperficial 141a2 enters the light (not representing in Fig. 2) of optical base-substrate 1 to the opposite side from optical base-substrate 1, carries out the event of inner full-reflection, make the light reflection downwards, arrive reverberator 3; Because the 141a of paddy portion, 141b, 141c, 141d, 141e, 141f, it increases its vertical degree of depth one by one by in the middle of two side direction; The reason of this design is because light is by emission in the middle of two side direction, for making the 141c of paddy portion of pars intermedia, 141d, its surface is when carrying out inner full-reflection, the energy of institute's reflection ray, can with the 141a of paddy portion of both sides, 141f, its surface is when carrying out inner full-reflection, so the energy homogeneous of institute's reflection ray is the 141c of paddy portion of design pars intermedia, 141d, depth is than the 141a of paddy portion of both sides, the depth of 141f is long, so that the 141a of paddy portion of interception both sides, 141f, its surface institute does not intercept, by light source 51 or 53 in the middle of optical base-substrate 1, the energy of light emitted line, and then make it to reflect downwards, the 6th surperficial 141a3 is parallel to surface 12, is mainly and is convenient to adjust the spacing size, simultaneously, also for making and the convenience of processing.
Moreover, with regard to the position of light source 51,53, can be arranged on the both sides of optical base-substrate 1, light source 51 includes 511 and reflection lampshades of at least one luminous lamp tube (light tube) (reflective chimney) 513.And light source 53 includes at least one luminous lamp tube 531 and a reflection lampshade 533, it should be noted that, though first embodiment of the invention is with a luminous lamp tube 511 expression light sources 51, and luminous lamp tube 531 expression light sources 53, but be not limited to use single luminous lamp tube 511,513, a plurality of luminous lamp tubes 511,513 are still feasible in first embodiment of the invention.
141a of paddy portion that Fig. 2 represents and the 141b of paddy portion have certain spacing P1, and 141b of paddy portion and the 141c of paddy portion have certain spacing P2 ... or the like.First embodiment of the invention its spacing is between 50 to 70 microns (μ m).
Second embodiment
Fig. 3 is the structure second example structure key diagram of front optical module optical facilities of the present invention.Fig. 4 is that structure second example structure of front optical module optical facilities of the present invention is amplified key diagram.Structure second embodiment of front optical module optical facilities of the present invention mainly is made of following each parts:
A display (not being shown in Fig. 3 and Fig. 4), display is made up of a plurality of pixels (pixels), and pixel possesses front end and the back of the body main surface of end (back major surface); An optical base-substrate 1, optical base-substrate 1 have two main facing surfaces, and one of them surface 12 is the positions that smoothly abut against the main surface of display front end; A reverberator 3, reverberator 3 are arranged on the position that is adjacent to the main surface of display back of the body end; A light source 51, light source 51 are used for light 7 is imported optical base-substrate 1, and wherein light 7 is from a side of optical base-substrate 1, enter optical base-substrate 1, and because of running into the surface of the 141a of paddy portion, because of inner full-reflection, reflection becomes light 71, by optical base-substrate 1 downwards, then pass through display, and reflected, later pass through display by reverberator 3, enter optical base-substrate 1, leave optical base-substrate 1 afterwards, thus, optical base-substrate 1 is strengthened the brightness of display.
The present invention is characterized in that: another surface 14 of optical base-substrate 1, it has a plurality of parallel 141a of paddy portion, 141b, 141c, 141d, 141e, 141f and the 143a of spine, 143b, 143c, 145a, 145b, 145c, 145d, 145e, its 141a of two-story valley portion and the 141b of paddy portion have certain spacing, the spacing P1 that represents as Fig. 3,141b of paddy portion and the 141c of paddy portion have certain spacing, the spacing P2 that represents as Fig. 3, or the like, thus, the light 9 that sends by the light source 51 of a side of optical base-substrate 1, enter the inside of optical base-substrate 1, run into the 141a of paddy portion, 141b, the surface of 141c, carry out inner full-reflection, make light 7, become light 71 respectively successively, 73,75, reflection downwards, arrive reverberator 3, can promote emission and leave the uniformity coefficient of the light of display, then, leave the light 71 of optical base-substrate 1, can be at the 145b of spine by optical base-substrate 1, break away from the direction of originally in optical base-substrate 1, carrying out, produce bigger range of scatter, break away from the direction of originally in optical base-substrate 1, carrying out, promote the size at visual angle.
The 143a of spine in the optical base-substrate 1, it is made up of a first surface 143a1 and a second surface 143a2, and the 143a of spine, the 143b of adjacency, 143c constitute the group of spine 143, and 143,145 of groups of spine, as the group of spine 143,145, can be occupied by the 141a of paddy portion, or one the 3rd surface 149 is occupied, and the 3rd surface 149 is the smooth surfaces 12 that are parallel to optical base-substrate 1.
The structure of the 143a of spine and the explanation of function, because the 143a of spine has two surfaces in opposite directions, be respectively first surface 143a1 and second surface 143a2, provide the light that leaves from optical base-substrate 1, break away from the direction of originally in optical base-substrate 1, carrying out, and have bigger range of scatter, be used to promote the size at visual angle.
The structure of the 141a of paddy portion and the explanation of function, because the 141a of paddy portion is made up of one the 4th surperficial 141a1 and one the 5th surperficial 141a2, the 4th surperficial 141a1 is to the side from optical base-substrate 1, enter the light 7 of optical base-substrate 1, carry out inner full-reflection, make light 7 reflections become light 71 downwards, arrive reverberator 3, the 5th surperficial 141a2 is to the opposite side from optical base-substrate 1, enter the light (in Fig. 3 and Fig. 4, not representing) of optical base-substrate 1, carry out the event of inner full-reflection, make the light reflection downwards, arrive reverberator 3; Because the 141a of paddy portion, 141b, 141c, 141d, 141e, 141f are by in the middle of two side direction, increase its vertical degree of depth one by one; The reason of this design is because light is by emission in the middle of two side direction, for making the 141c of paddy portion of pars intermedia, 141d, its surface is when carrying out inner full-reflection, the energy of institute's reflection ray, can with the 141a of paddy portion of both sides, 141f, its surface is when carrying out inner full-reflection, the energy homogeneous of institute's reflection ray, so 141c of paddy portion of design pars intermedia, 141d, depth is than the 141a of paddy portion of both sides, the depth of 141f is long, so that the 141a of paddy portion of interception both sides, 141f, its surface is not intercepted, by light source 51 or 53 in the middle of optical base-substrate 1, the energy of light emitted line, and then make it to reflect downwards.
Moreover, with regard to the position of light source 51,53, can be arranged on the both sides of optical base-substrate 1, light source 51 includes at least one luminous lamp tube 511 and a reflection lampshade 513, and light source 53 includes at least one luminous lamp tube 531 and a reflection lampshade 533, it should be noted that, though second embodiment of the invention is with a luminous lamp tube 511 expression light sources 51, and luminous lamp tube 531 expression light sources 53, but be not limited to use single luminous lamp tube 511,513, a plurality of luminous lamp tube 511,513 is still feasible in second embodiment of the invention.
The 141a of paddy portion and the 141b of paddy portion that represent as Fig. 3 and Fig. 4 have certain spacing P1, and 141b of paddy portion and the 141c of paddy portion have certain spacing P2 ... or the like, the embodiment of the invention second embodiment its spacing is between 50 to 70 microns (μ m).
Fig. 5 is the structure key diagram of second embodiment of the invention front optical module optical facilities; Structure about the 141a of paddy portion is the pars intermedia that is symmetrical in the front optical module optical facilities; The 141a of paddy portion, 141b, 141c, 141d, 141e, 141f are by in the middle of two side direction, increase its vertical degree of depth one by one.The reason of this design is because light system launches by two side direction are middle, for making the 141c of paddy portion of pars intermedia, 141d, its surface is when carrying out inner full-reflection, the energy of institute's reflection ray, can with the 141a of paddy portion of both sides, 141f, its surface is when carrying out inner full-reflection, the energy homogeneous of institute's reflection ray, so 141c of paddy portion of design pars intermedia, 141d, depth is than the 141a of paddy portion of both sides, the depth of 141f is long, so that the 141a of paddy portion of interception both sides, 141f, its surface is not intercepted, by light source 51 or 53 in the middle of optical base-substrate 1, the energy of light emitted line, and then make it to reflect downwards.
Fig. 6 is the principle of luminosity key diagram of second embodiment of the invention front optical module optical facilities.A light source 51, light source 51 is used for light 7 is imported optical base-substrate 1, wherein light 7 enters optical base-substrate 1 from a side of optical base-substrate 1, and because of running into the surface of the 141a of paddy portion, because of inner full-reflection, reflection becomes light 71, by optical base-substrate 1 downwards, then pass through display, and the device 3 that is reflected reflects, and later by display, enters optical base-substrate 1, a part of light 71 after reflection, can break away from the direction of originally in optical base-substrate 1, carrying out by behind the 143a of spine of optical base-substrate 1, produce bigger range of scatter, break away from the direction of originally in optical base-substrate 1, carrying out, promote the size at visual angle.
Fig. 7 is the outside drawing of second embodiment of the invention front optical module optical facilities, can see the paddy portion and the spine of optical base-substrate by Fig. 7, is the pars intermedia that is symmetrical in the front optical module optical facilities, by symmetric offset spread in the middle of two side direction.
More than disclosed accompanying drawing and explanation, only be preferred embodiment of the present invention, non-for being used to limit enforcement of the present invention, be familiar with generally this skill the personage its comply with spirit of the present invention, variation of being done or modification all should be encompassed in the following claim scope of the present invention.
Claims (8)
1. the structure of front optical module optical facilities comprises:
One display, this display is made up of a plurality of pixel, and this pixel possesses front end and the main surface of back of the body end;
One optical base-substrate, this optical base-substrate have two main facing surfaces, a surface smoothing wherein, and be adjacent to the position on the main surface of this display front end;
One reverberator, this reverberator are arranged on the position that is adjacent to this main surface of display back of the body end; And
One light source, this light source are used for light is imported this optical base-substrate, and wherein light enters this optical base-substrate from the both sides of this optical base-substrate, and because of running into the surface of paddy portion, and inner full-reflection, reflection downwards is by this optical base-substrate, then by this display, and reflected by this reverberator, return by this display, enter this optical base-substrate, leave this optical base-substrate afterwards, thus, this optical base-substrate is strengthened the brightness of this display;
It is characterized in that:
Another surface of this optical base-substrate has a plurality of parallel spines and paddy portion, and its two-story valley portion and paddy portion have certain spacing; Thus,, enter the inside of this optical base-substrate, run into the surface of this paddy portion, carry out inner full-reflection, make this light reflection downwards, arrive this reverberator, promote the uniformity coefficient that the light of this display is left in emission by the light that the light source of these optical base-substrate both sides sends; Then, leave the light of this optical base-substrate,, break away from the direction of originally in this optical base-substrate, carrying out, produce bigger range of scatter, promote the size at visual angle by after the spine of this optical base-substrate.
2. the structure of front optical module optical facilities as claimed in claim 1, wherein each spine is made up of a first surface and a second surface, and the spine of adjacency constitutes a group of spine, and between the group of spine, can be occupied by one the 3rd surface or a paddy portion.
3. the structure of front optical module optical facilities as claimed in claim 1, wherein this first surface and this second surface provide the light that leaves from this optical base-substrate, break away from the direction of originally carrying out in this optical base-substrate, and have bigger range of scatter, be used to promote the size at visual angle.
4. the structure of front optical module optical facilities as claimed in claim 1, wherein the 3rd surface is parallel to the smooth surface of this optical base-substrate.
5. the structure of front optical module optical facilities as claimed in claim 1, wherein this paddy portion is by one the 4th surface and one the 5th surface composition, and the 4th surface is to the side from this optical base-substrate, enter the light of this optical base-substrate, carry out inner full-reflection, make this light reflection downwards, arrive this reverberator; The 5th surface enters the light of this optical base-substrate to the opposite side from this optical base-substrate, carries out the event of inner full-reflection, makes this light reflection downwards, arrives this reverberator.
6. the structure of front optical module optical facilities as claimed in claim 1, wherein this paddy portion in the middle of two side direction, increases its vertical degree of depth one by one.
7. the structure of front optical module optical facilities as claimed in claim 1, this light source wherein can be arranged on the both sides of this optical base-substrate, comprising: an at least one luminous lamp tube and a reflection lampshade.
8. the structure of front optical module optical facilities as claimed in claim 1, wherein this spacing is between 50 to 70 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157158 CN1276297C (en) | 2002-12-17 | 2002-12-17 | Structure of front light module optical mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157158 CN1276297C (en) | 2002-12-17 | 2002-12-17 | Structure of front light module optical mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1508604A true CN1508604A (en) | 2004-06-30 |
| CN1276297C CN1276297C (en) | 2006-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02157158 Expired - Lifetime CN1276297C (en) | 2002-12-17 | 2002-12-17 | Structure of front light module optical mechanism |
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| Country | Link |
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| CN (1) | CN1276297C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767748A (en) * | 2011-05-03 | 2012-11-07 | 元太科技工业股份有限公司 | Front light module |
-
2002
- 2002-12-17 CN CN 02157158 patent/CN1276297C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767748A (en) * | 2011-05-03 | 2012-11-07 | 元太科技工业股份有限公司 | Front light module |
| CN102767748B (en) * | 2011-05-03 | 2015-03-11 | 元太科技工业股份有限公司 | Front light module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1276297C (en) | 2006-09-20 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YOUDA PHOTOELECTRIC CO., LTD. Free format text: FORMER NAME OR ADDRESS: GUANGHUI ELECTRONIC CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: Hsinchu, Taiwan, China Patentee after: AU OPTRONICS Corp. Address before: Taiwan, China Patentee before: QUANTA DISPLAY INCORPORATION |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20060920 |